Technical field of the invention
[0001] The present invention relates to fabric care compositions and to a method for treating
fabrics in order to improve various properties of fabrics, in particular in-wear wrinkle
resistance.
Background of the invention
[0002] Wrinkles in textile fabrics are caused by the bending and creasing of the textile
material which places an external portion of a filament in a yarn under tension while
the internal portion of that filament in the yarn is placed under compression. Particularly
with cotton fabrics, the hydrogen bonding that occurs between the cellulose molecules
contributes to keeping wrinkles in place. The wrinkling of fabric, in particular clothing,
is therefore subject to the inherent tensional elastic deformation and recovery properties
of the fibers which constitute the yarn and fabrics.
[0003] In the modern world, with the increase of hustle and bustle and travel, there is
a demand for a quick fix which will help to diminish the labor involved in home laundering
and/or the cost and time involved in dry cleaning or commercial laundering. Further,
it is well known that alternating cycles of using and laundering fabrics and textiles,
such as articles of worn clothing and apparel, will inevitably adversely affect the
appearance and integrity of the fabric and textile items so used and laundered. Fabrics
and textiles simply wear out over time and with use. Laundering of fabrics and textiles
is necessary to remove soils and stains which accumulate therein and thereon during
ordinary use. However, the laundering operation itself, over many cycles, can accentuate
and contribute to the deterioration of the integrity and the appearance of such fabrics
and textiles. Accordingly, this has brought additional pressure to bear on textile
technologists to produce a product that will sufficiently reduce wrinkles in fabrics,
especially clothing, whilst still producing a good appearance through a simple, convenient
application of a product.
[0004] The prior art contains numerous examples of compositions for reducing wrinkles. U.S.
5,532,023, discloses aqueous wrinkle control compositions containing non-volatile
silicone and film forming polymer. Preferred silicones include reactive silicones
and amino-functional silicone, known as "amodimethicone". The composition containing
such silicones is applied to fabric from a spray dispenser. It is found that in the
spray treatment, an appreciable amount of the aqueous composition misses the fabric,
and instead falls on flooring surfaces, such as rugs, carpets, concrete floors, tiled
floors, linoleum floors, bathtub floors, which leaves a silicone layer that is accumulated
on and/or cured on and/or bonded to the flooring surfaces. Such silicones that are
accumulated on such surfaces, and especially those that are bonded to such surfaces
are difficult to remove. Flooring surfaces thus become slippery and can present a
safety hazard to the household members. U.S. 5,573,695 discloses an aqueous wrinkle
removal composition containing a vegetable oil based cationic quaternary ammonium
surfactant, and an anionic fluorosurfactant. Similarly, U.S. 4,661,268 discloses a
wrinkle removal spray comprising an aqueous alcoholic composition containing a dialkyl
quaternary ammonium salt and a silicone surfactant and/or a fluoro surfactant. U.S.
5,100,566 discloses a method of reducing wrinkles in fabric by spraying the fabric
with an aqueous alcoholic solution of an anionic siliconate alkali metal salt. U.S.
4,806,254 discloses fabric wrinkle removal aqueous alcoholic solution containing glycerine
and a nonionic surfactant. WO98/04772 provides the treatment of fabric against fabric
creasing by application of a composition comprising a polycarboxylic acid or derivative
thereof; and then curing the composition using a domestic process. Starch is also
a conventional ingredient of dewrinkling compositions. However, while starch provides
a suitable visual benefit onto the treated fabrics, it also gives fabric with an undesired
stiff or starchy feeling. These patents are incorporated herein by reference.
[0005] Accordingly, the domestic treatment of fabric is a problem known in the art to the
formulator of laundry compositions. Therefore, there is a need for a wrinkle reducing
composition which reduces the above mentioned negatives.
[0006] Further, most of the focus in the dewrinkling area has been on providing compositions
with instant dewrinkling. However, with the current trends of reducing the labor involved
in ironing, it has now been found that there is a need for a composition that would
additionally provide in-wear wrinkle resistance, i.e. a composition that would provide
long-lasting benefit upon ironing, and wearing.
[0007] Moreover, there is also a need for an efficient and economical composition.
[0008] It has now surprisingly been found that the combination of a water-soluble lubricant
and component having a deviation of fabric Wrinkle Recovery Angle (WRA) versus water
of at least +15 fulfill such a need. This finding is particularly, especially when
the component providing such deviation is a polymer. Indeed, it is known that the
combination of water-soluble lubricant with polymer is often the cause of phase separation.
Further, often the addition of polymer like starch on top of composition comprising
water-soluble lubricant was found to give even worse results on the in-wear performance.
Surprisingly, it has been found that the addition of a component providing a deviation
of fabric WRA of at least +15 overcome such problems.
[0009] Accordingly, the present invention reduces wrinkles in fabrics, including clothing,
dry cleanables, linens, bed clothes, and draperies, by ironing. The present invention
can be used on damp or dry clothing to relax wrinkles and give clothes a ready to
wear look with lasting benefits that is demanded by today's fast paced world.
[0010] In a preferred aspect, an additional benefit of the composition of the present invention
is an improved garment shape, body and crispness.
[0011] The composition of the present invention acts as an excellent ironing aid. The present
invention makes the task of ironing easier and faster by creating less iron drag.
The compositions of the present invention help produce a crisp, smooth appearance.
Summary of the invention
[0012] The present invention is a wrinkle reducing composition comprising a water-soluble
lubricant and a component having a deviation of fabric Wrinkle Recovery angle (WRA)
versus water of at least +15.
[0013] In another aspect of the invention, there is provided an article of manufacture comprising
the composition of the invention.
[0014] Still in a further aspect of the invention, there is provided a method of treating
fabrics for imparting benefits selected from the group consisting of: reducing wrinkles;
imparting in-wear resistance to fabrics.
[0015] In a further aspect of the invention, there is provided an article of manufacture
comprising a container and the composition of the invention in association with instructions
to use.
Detailed description of the invention
1)-Water-soluble lubricant
[0016] One essential component of the invention is a water-soluble lubricant. By means of
this component, the composition provides an ease of ironing whilst still avoiding
the staining of fabric and/or presenting safety hazard to the household members.
[0017] For the purposes of the present invention the term "water-soluble" is defined as
"a component which when dissolved in water at a level of 0.2% by weight, or less,
at 25° C, forms a clear, isotropic liquid".
[0018] Typical water-soluble lubricants include components selected from nonionic silicone
containing surfactants, sorbitan esters, ethoxylated sorbitan esters, and mixtures
thereof. The water-soluble lubricants are preferably present in an amount of from
0.1% to 70% by weight of the composition, more preferably of from 1 to 10% % by weight
of the composition for diluted composition and of from 20 to 50% by weight of the
composition for concentrated compositions.
Nonionic Silicone Containing Surfactants
[0019] A preferred class of nonionic silicone containing surfactants are the polyalkylene
oxide polysiloxanes having a dimethyl polysiloxane hydrophobic moiety and one or more
hydrophilic polyalkylene side chains, and having the general formula:
R1-(CH3)2SiO-[(CH3)2SiO]a-[(CH3)(R1)SiO]b-Si(CH3)2-R1
wherein a + b are from about 1 to about 50, preferably from about 1 to about 30 ,
more preferably from about 1 to about 25, and each R1 is the same or different and
is selected from the group consisting of methyl and a poly(ethyleneoxide/propyleneoxide)
copolymer group having the general formula:
-(CH2)n O(C2 H4 O)c (C3 H6 O)d R2
with at least one R1 being a poly(ethyleneoxy/propyleneoxy) copolymer group, and wherein
n is 3 or 4, preferably 3; total c (for all polyalkyleneoxy side groups) has a value
of from 1 to about 100, preferably from about 6 to about 100; total d is from 0 to
about 14, preferably from 0 to about 3; and more preferably d is 0; total c+d has
a value of from about 5 to about 150, preferably from about 7 to about 100 and each
R2 is the same or different and is selected from the group consisting of hydrogen,
an alkyl having 1 to 4 carbon atoms, and an acetyl group, preferably hydrogen and
methyl group. Each polyalkylene oxide polysiloxane has at least one R1 group being
a poly(ethyleneoxide/propyleneoxide) copolymer group.
[0020] Nonlimiting examples of this type of surfactants are the Silwet® surfactants which
are available OSI Specialties Inc., a Division of Witco, Danbury, Connecticut. Representative
Silwet® surfactants which contain only ethyleneoxy (C2H4O) groups are as follows.
| Name Average MW Average a+b Average total c |
| L-7608 |
600 |
1 |
8 |
| L-7607 |
1,000 |
2 |
17 |
| L-77 |
600 |
1 |
9 |
| L-7605 |
6,000 |
20 |
99 |
| L-7604 |
4,000 |
21 |
53 |
| L-7600 |
4,000 |
11 |
68 |
| L-7657 |
5,000 |
20 |
76 |
| L-7602 |
3,000 |
20 |
29 |
| L-7622 |
10,000 |
88 |
75 |
[0021] Nonlimiting examples of Silwet® surfactants which contain both ethyleneoxy (C2 H4
O) and propyleneoxy (C3 H6 O) groups are as follows.
| Name Average MW EO/PO ratio |
| L-720 |
12,000 |
50/50 |
| L-7001 |
20,000 |
40/60 |
| L-7002 |
8,000 |
50/50 |
| L-7210 |
13,000 |
20/80 |
| L-7200 |
19,000 |
75/25 |
| L-7220 |
17,000 |
20/80 |
[0022] The molecular weight of the polyalkyleneoxy group (R1) is less than or equal to about
10,000. Preferably, the molecular weight of the polyalkyleneoxy group is less than
or equal to about 8,000, and most preferably ranges from about 300 to about 5,000.
Thus, the values of c and d can be those numbers which provide molecular weights within
these ranges. However, the number of ethyleneoxy units (-C2H4O) in the polyether chain
(R1) must be sufficient to render the polyalkylene oxide polysiloxane water soluble.
If propyleneoxy groups are present in the polyalkylenoxy chain, they can be distributed
randomly in the chain or exist as blocks. Mixtures of Silwet® surfactants which contain
both ethyleneoxy and propyleneoxy groups, are also preferred. Preferred Silwet® surfactants
are the L-7001, L-7087, L-7200, L-7280, L-7600, L-7608, L-7622, L-7657.
[0023] The preparation of polyalkylene oxide polysiloxanes is well known in the art. Polyalkylene
oxide polysiloxanes of the present invention can be prepared according to the procedure
set forth in U.S. Pat. No. 3,299,112, incorporated herein by reference. Typically,
polyalkylene oxide polysiloxanes of the surfactant blend of the present invention
are readily prepared by an addition reaction between a hydrosiloxane (i.e., a siloxane
containing silicon-bonded hydrogen) and an alkenyl ether (e.g., a vinyl, allyl, or
methallyl ether) of an alkoxy or hydroxy end-blocked polyalkylene oxide). The reaction
conditions employed in addition reactions of this type are well known in the art and
in general involve heating the reactants (e.g., at a temperature of from about 85°
C. to 110° C.) in the presence of a platinum catalyst (e.g., chloroplatinic acid)
and a solvent (e.g., toluene).
[0024] Still other preferred water-soluble lubricants of the nonionic type are those from
the class of sorbitan esters and/or alkylethoxylate sorbitan ester. These ethoxylated
sorbitan esters are formed by ethoxylation of sorbitan or its cyclic derivative sorbitan,
followed by esterification of one of the available hydroxy groups to introduce one
long chain alkyl or alkenyl group, leaving the remaining hydroxy groups free. Compounds
of this type are included in the range commercially available under the Registered
Trade Mark TWEEN from Aldrich and from ICI United States Inc, but are also available
from other suppliers e.g Radiasurf 7137 (Polyethoxylated (20 moles) sorbitan monolaurate),
Radiasurf 7147 (Polysorbate 60), Radiasurf 7157 (Polysorbate 80) commercially available
from FINA and Tween 65 (Polyethoxylated (20 moles) sorbitan tristearate), Tween 20
(Polyethoxylated (20 moles) sorbitan monolaurate, Tween 21 (Polyethoxylated (4 moles)
sorbitan monolaurate ), Tween 40 (Polyethoxylated (20 moles) sorbitan palmitate),
commercially available from Aldrich.
2)-component having a deviation of fabric WRA versus water of at least +15
[0025] A component having a deviation of fabric WRA of at least +15 is another essential
component of the invention. Typically, these components are present in an amount of
at least about 0.01%, preferably from about 0.1% to about 20% by weight of the composition,
preferably to about 4% by weight of the diluted composition, preferably to about 12%
by weight of the concentrated composition.
Wrinkle Recovery Angle (WRA) Test Method:
[0026] The WRA Test method is taken from the AATCC 66-1990. This method is an American National
Standard method designed for the determination of the wrinkle recovery of woven fabrics,
whereby a test specimen, creased and compressed under controlled conditions of time
and load, is suspended in the test instrument for a controlled recovery period, after
which the recovery angle is measured. Experimental detail on how to measure this WRA
is given in AATCC 66-1990, incorporated herein by reference. The WRA method is tested
on 100% cotton, woven Oxford pinpoint fabric, free from wrinkles, cut in twelve specimens
of 0.59 inch x 1.57 inch, six with their long dimension parallel to the warp, and
six with their long dimensional parallel to the filling. The test is carried out on
cloth conditioned for 24 hours at 21°C (70°F) and 65% RH. Three specimens from each
set are creased on one side and three on the other. Tweezers are used to place the
test specimen between the leaves of the specimen holder (2 superimposed leaves 0.63
inch wide, but of different lengths and fastened together at one end) with one end
directly under the 0.71-inch mark. With the tweezers, the exposed end of the specimen
is lifted over and looped back to the 0.71-inch mark on the shorter, thin metal leaf
and holded with the left thumbnail. The holder with the specimen is inserted into
a plastic press (2 superimposed leaves of equal length (3.74 inch) and 0.79 inch wide,
fastened together at one end ) and a weight of 500g is applied for 5 minutes so that
a crease is formed. The plastic press can then be removed and the specimen holder
combination can be inserted in the tester with the exposed end of the specimen holder
in the mount on the face of the tester. The crease should line up with a spot at the
centre of the tester disk, and the dangling specimen leg should be lined up immediately
with the vertical guide line. In order to eliminate gravitation effects, keep the
dangling specimen leg aligned with the vertical guide line during the 5-min recovery
period. Adjust every 15 seconds for the first minute, and once a minute thereafter.
Five minutes after the removal of the creasing load, the wrinkle recovery value is
read to the nearest degree from the scale. The sum is taken of the average recovery
for all warp readings and all filling readings and compared with a cloth treated with
water.
[0027] Components defined by their WRA are well known in the art. For example, in JAPS,
Vol.15, pp.341-349 (1971) as well as in Textile Research Journal, pp. 199-201, Feb.1970,
are given various examples of components defined by a WRA, all of which are included
within the scope of the present invention.
[0028] The fabric WRA obtained with the tested component is compared with the fabric WRA
obtained with water, thereby giving a deviation Δ. A component which provide a Δ of
at least positive(+)15, preferably having a Δ within the range of 15-30 is a component
suitable for the invention.
[0029] The following represents the WRA deviation versus water of different polymers suitable
for use in the present invention and according to the above procedure. In each case,
numbers are arithmetic averages of 9 replicates and the results are statistically
significantly different at 95% confidence level:
| Polymer |
Δ WRA |
| IMO 900 |
19 |
| Avalure AC 120 |
21 |
| Luviquat FC 905 |
15 |
- IMO 900: Isomaltose Oligosaccharide ex. Showa Sangyo Co.
- Avalure AC 120 :Polyacrylate ex. BF Goodrich
- Luviquat FC 905 :copolymer Vinylimidazolium methochloride & Vinylpyrrolidone ex. BASF
[0030] Preferred components which have a deviation of fabric WRA versus water of at least
15 are selected from shape retention polymers, polymers comprising at least one unit
which provide a dye transfer inhibiting benefit, polyurethanes, polyamine polymers,
Isomaltooligosaccharide, and mixtures thereof. Most preferred are the polymers which
are water-soluble.
1)-Shape Retention Polymer
[0031] These polymers can be natural, or synthetic, and can act by forming a film, and/or
by providing adhesive properties. E.g., the present invention can optionally use film-forming
and/or adhesive polymer to impart shape retention to fabric, particularly clothing.
By "adhesive" it is meant that when applied as a solution or a dispersion to a fiber
surface and dried, the polymer can attach to the surface. The polymer can form a film
on the surface, or when residing between two fibers and in contact with the two fibers,
it can bind the two fibers together. Other polymers such as Isomaltose Oligosaccharide
can form a film and/or bond the fibers together when the treated fabric is pressed
by a hot iron. Such a film will have adhesive strength, cohesive breaking strength,
and cohesive breaking strain.
[0032] Nonlimiting examples for natural polymers are Isomaltose
Oligosaccharide and their derivatives, and chitins and their derivatives.
[0033] The synthetic polymers useful in the present invention are comprised of monomers.
Some nonlimiting examples of monomers which can be used to form the synthetic polymers
of the present invention include: low molecular weight C
1-C
6 unsaturated organic mono-carboxylic and polycarboxylic acids, such as acrylic acid,
methacrylic acid, crotonic acid, maleic acid and its half esters, itaconic acid, and
mixtures thereof; esters of said acids with C
1-C
12 alcohols, such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol,
1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 1-methyl-1-butanol, 3-methyl-1-butanol,
1-methyl-1-pentanol, 2-methyl-1-pentanol, 3-methyl-1-pentanol, t-butanol, cyclohexanol,
2-ethyl-1-butanol, neodecanol, 3-heptanol, benzyl alcohol, 2-octanol, 6-methyl-1-heptanol,
2-ethyl-1-hexanol, 3,5-dimethyl-1-hexanol, 3,5,5-trimethyl-1-hexanol, 1-decanol, 1-dodecanol,
and the like, and mixtures thereof. Nonlimiting examples of said esters are methyl
acrylate, ethyl acrylate, t-butyl acrylate, methyl methacrylate, hydroxyethyl methacrylate,
methoxy ethyl methacrylate, and mixtures thereof; amides and imides of said acids,
such as N,N-dimethylacrylamide, N-t-butyl acrylamide, maleimides; low molecular weight
unsaturated alcohols such as vinyl alcohol (produced by the hydrolysis of vinyl acetate
after polymerization), allyl alcohol; esters of said alcohols with low molecular weight
carboxylic acids, such as, vinyl acetate, vinyl propionate; ethers of said alcohols
such as methyl vinyl ether; aromatic vinyl such as styrene, alpha-methylstyrene, t-butylstyrene,
vinyl toluene, polystyrene macromer, and the like; polar vinyl heterocyclics, such
as vinyl pyrrolidone, vinyl caprolactam, vinyl pyridine, vinyl imidazole, and mixtures
thereof; other unsaturated amines and amides, such as vinyl amine, diethylene triamine,
dimethylaminoethyl methacrylate, ethenyl formamide; vinyl sulfonate; salts of acids
and amines listed above; low molecular weight unsaturated hydrocarbons and derivatives
such as ethylene, propylene, butadiene, cyclohexadiene, vinyl chloride; vinylidene
chloride; and mixtures thereof and alkyl quaternized derivatives thereof, and mixtures
thereof.
[0034] Preferably, said monomers are selected from the group consisting of vinyl alcohol;
acrylic acid; methacrylic acid; methyl acrylate; ethyl acrylate; methyl methacrylate;
t-butyl acrylate; t-butyl methacrylate; n-butyl acrylate; n-butyl methacrylate; isobutyl
methacrylate; 2-ethylhexyl methacrylate; dimethylaminoethyl methacrylate; N,N-dimethyl
acrylamide; N,N-dimethyl methacrylamide; N-t-butyl acrylamide; vinylpyrrolidone; vinyl
pyridine; adipic acid; diethylenetriamine; salts thereof and alkyl quaternized derivatives
thereof, and mixtures thereof.
[0035] Preferably, said monomers form homopolymers and/or copolymers (i.e., the film-forming
and/or adhesive polymer) having a glass transition temperature (Tg) of from about
-20°C to about 150°C, preferably from about -10°C to about 150°C, more preferably
from about 0°C to about 100°C, most preferably, the adhesive polymer hereof, when
dried to form a film will have a Tg of at least about 25°C., so that they are not
unduly sticky, or "tacky" to the touch. Preferably said polymer is soluble and/or
dispersible in water and/or alcohol. Said polymer typically has a molecular weight
of at least about 500, preferably from about 1,000 to about 2,000,000, more preferably
from about 5,000 to about 1,000,000, and even more preferably from about 30,000 to
about 300,000 for some polymers.
[0036] Some non-limiting examples of homopolymers and copolymers which can be used as film-forming
and/or adhesive polymers of the present invention are: adipic acid/dimethylaminohydroxypropyl
diethylenetriamine copolymer; adipic acid/epoxypropyl diethylenetriamine copolymer;
poly(vinylpyrrolidone/ dimethylaminoethyl methacrylate); polyvinyl alcohol; polyvinylpyridine
n-oxide; methacryloyl ethyl betaine/methacrylates copolymer; ethyl acrylate/methyl
methacrylate/methacrylic acid/acrylic acid copolymer; polyamine resins; and polyquaternary
amine resins; poly(ethenylformamide); poly(vinylamine) hydrochloride; poly(vinyl alcohol-co-6%
vinylamine); poly(vinyl alcohol-co-12% vinylamine); poly(vinyl alcohol-co-6% vinylamine
hydrochloride); and poly(vinyl alcohol-co-12% vinylamine hydrochloride). Preferably,
said copolymer and/or homopolymers are selected from the group consisting of adipic
acid/dimethylaminohydroxypropyl diethylenetriamine copolymer; poly(vinylpyrrolidone/dimethylaminoethyl
methacrylate); polyvinyl alcohol; ethyl acrylate/methyl methacrylate/methacrylic acid/acrylic
acid copolymer; methacryloyl ethyl betaine/methacrylates copolymer; polyquaternary
amine resins; poly(ethenylformamide); poly(vinylamine) hydrochloride; poly(vinyl alcohol-co-6%
vinylamine); poly(vinyl alcohol-co-12% vinylamine); poly(vinyl alcohol-co-6% vinylamine
hydrochloride); and poly(vinyl alcohol-co-12% vinylamine hydrochloride).
[0037] Preferred polymers useful in the present invention are selected from the group consisting
of copolymers of hydrophilic monomers and hydrophobic monomers. The polymer can be
linear random or block copolymers, and mixtures thereof. Such hydrophobic/hydrophilic
copolymers typically have a hydrophobic monomer/hydrophilic monomer ratio of from
about 95:5 to about 20:80, preferably from about 90:10 to about 40:60, more preferably
from about 80:20 to about 50:50 by weight of the copolymer. The hydrophobic monomer
can comprise a single hydrophobic monomer or a mixture of hydrophobic monomers, and
the hydrophilic monomer can comprise a single hydrophilic monomer or a mixture of
hydrophilic monomers. The term "hydrophobic" is used herein consistent with its standard
meaning of lacking affinity for water, whereas "hydrophilic" is used herein consistent
with its standard meaning of having affinity for water. As used herein in relation
to monomer units and polymeric materials, including the copolymers, "hydrophobic"
means substantially water insoluble; "hydrophilic" means substantially water soluble.
In this regard, "substantially water insoluble" shall refer to a material that is
not soluble in distilled (or equivalent) water, at 25°C., at a concentration of about
0.2% by weight, and preferably not soluble at about 0.1% by weight (calculated on
a water plus monomer or polymer weight basis). "Substantially water soluble" shall
refer to a material that is soluble in distilled (or equivalent) water, at 25°C.,
at a concentration of about 0.2% by weight, and are preferably soluble at about 1%
by weight. The terms "soluble", "solubility" and the like, for purposes hereof, corresponds
to the maximum concentration of monomer or polymer, as applicable, that can dissolve
in water or other solvents to form a homogeneous solution, as is well understood to
those skilled in the art.
[0038] Nonlimiting examples of useful hydrophobic monomers are acrylic acid C
1 -C
18 alkyl esters, such as methyl acrylate, ethyl acrylate, t-butyl acrylate; methacrylic
C
1-C
18 alkyl esters, such as methyl methacrylate, 2-ethyl hexyl methacrylate, methoxy ethyl
methacrylate; vinyl alcohol esters of carboxylic acids, such as, vinyl acetate, vinyl
propionate, vinyl neodecanoate; aromatic vinyls, such as styrene, t-butyl styrene,
vinyl toluene; vinyl ethers, such as methyl vinyl ether; vinyl chloride; vinylidene
chloride; ethylene, propylene and other unsaturated hydrocarbons; and the like; and
mixtures thereof. Some preferred hydrophobic monomers are methyl acrylate, methyl
methacrylate, t-butyl acrylate, t-butyl methacrylate, n-butyl acrylate, n-butyl methacrylate,
and mixtures thereof.
[0039] Nonlimiting examples of useful hydrophilic monomers are unsaturated organic mono-carboxylic
and polycarboxylic acids, such as acrylic acid, methacrylic acid, crotonic acid, maleic
acid and its half esters, itaconic acid; unsaturated alcohols, such as vinyl alcohol,
allyl alcohol; polar vinyl heterocyclics, such as vinyl pyrrolidone, vinyl caprolactam,
vinyl pyridine, vinyl imidazole; vinyl amine; vinyl sulfonate; unsaturated amides,
such as acrylamides, e.g., N,N-dimethylacrylamide, N-t-butyl acrylamide; hydroxyethyl
methacrylate; dimethylaminoethyl methacrylate; salts of acids and amines listed above;
and the like; and mixtures thereof. Some preferred hydrophilic monomers are acrylic
acid, methacrylic acid, N,N-dimethyl acrylamide, N,N-dimethyl methacrylamide, N-t-butyl
acrylamide, dimethylamino ethyl methacrylate, vinyl pyrrolidone, salts thereof and
alkyl quaternized derivatives thereof, and mixtures thereof.
[0040] Preferably, the shape retention copolymers contain hydrophobic monomers and hydrophilic
monomers which comprise unsaturated organic mono-carboxylic and polycarboxylic acid
monomers, such as acrylic acid, methacrylic acid, crotonic acid, maleic acid and its
half esters, itaconic acid, and salts thereof, and mixtures thereof; and optionally
other hydrophilic monomers. These preferred polymers of the current invention surprisingly
provide control of certain amine type malodors in fabrics, in addition to providing
the fabric wrinkle control benefit. Examples of the hydrophilic unsaturated organic
mono-carboxylic and polycarboxylic acid monomers are acrylic acid, methacrylic acid,
crotonic acid, maleic acid and its half esters, itaconic acid, and mixtures thereof.
Nonlimiting examples of the hydrophobic monomers are esters of the unsaturated organic
mono-carboxylic and polycarboxylic acids cited hereinabove with C
1-C
12 alcohols, such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol,
1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 1-methyl-1-butanol, 3-methyl-1-butanol,
1-methyl-1-pentanol, 2-methyl-1-pentanol, 3-methyl-1-pentanol, t-butanol, cyclohexanol,
2-ethyl-1-butanol, and mixtures thereof, preferably methanol, ethanol, 1-propanol,
2-propanol, 1-butanol, 2-methyl-1-propanol, t-butanol, and mixtures thereof.
[0041] Compositions containing these polymers also can additionally comprise perfume, antibacterial
active, odor control agent, static control agent, and mixtures thereof.
[0042] It is not intended to exclude the use of higher or lower levels of the polymers,
as long as an effective amount is used to provide adhesive and film-forming properties
to the composition and the composition can be formulated and effectively applied for
its intended purpose.
[0043] Highly preferred adhesive and/or film forming polymers that are useful in the composition
of the present invention actually contain silicone moieties in the polymers themselves.
These preferred polymers include graft and block copolymers of silicone with moieties
containing hydrophilic and/or hydrophobic monomers described hereinbefore. The silicone-containing
copolymers in the composition of the present invention provide shape retention, body,
and/or good, soft fabric feel.
[0044] Both silicone-containing graft and block copolymers useful in the present invention
have the following properties:
(1) the silicone portion is covalently attached to the non-silicone portion;
(2) the molecular weight of the silicone portion is from about 1,000 to about 50,000;
and
(3) the non-silicone portion must render the entire copolymer soluble or dispersible
in the wrinkle control composition vehicle and permit the copolymer to deposit on/adhere
to the treated fabrics.
[0045] Suitable silicone copolymers include the following:
(a) Silicone Graft Copolymers
[0046] Preferred silicone-containing polymers are the silicone graft copolymers comprising
acrylate groups described, along with methods of making them, in U.S. Patent No. 5,658,557,
Bolich et al., issued Aug. 19, 1997, U.S. Patent No. 4,693,935, Mazurek, issued Sept.
15, 1987, and U.S. Patent No. 4,728,571, Clemens et al., issued Mar. 1, 1988. Additional
silicone-containing polymers are disclosed in U.S. Pat. Nos. 5,480,634, Hayama et
al, issued Oct. 2, 1996, 5,166,276, Hayama et al., issued Nov. 24, 1992, 5,061,481,
issued Oct. 29, 1991, Suzuki et al., 5,106,609, Bolich et al., issued Apr. 21, 1992,
5,100,658, Bolich et al., issued Mar. 31, 1992, 5,100,657, Ansher-Jackson, et al.,
issued Mar. 31, 1992, 5,104,646, Bolich et al., issued Apr. 14, 1992, all of which
are incorporated herein by reference.
[0047] These polymers preferably include copolymers having a vinyl polymeric backbone having
grafted onto it monovalent siloxane polymeric moieties, and components consisting
of non-silicone hydrophilic and hydrophobic monomers.
[0048] The silicone-containing monomers are exemplified by the general formula:
X(Y)
n Si(R)
3-m Z
m
wherein X is a polymerizable group, such as a vinyl group, which is part of the backbone
of the polymer; Y is a divalent linking group; R is a hydrogen, hydroxyl, lower alkyl
(e.g. C
1-C
4), aryl, alkaryl, alkoxy, or alkylamino; Z is a monovalent polymeric siloxane moiety
having an average molecular weight of at least about 500, is essentially unreactive
under copolymerization conditions, and is pendant from the vinyl polymeric backbone
described above; n is 0 or 1; and m is an integer from 1 to 3.
[0049] The preferred silicone-containing monomer has a weight average molecular weight of
from about 1,000 to about 50,000, preferably from about 3,000 to about 40,000, most
preferably from about 5,000 to about 20,000.
[0050] Nonlimiting examples of preferred silicone-containing monomers have the following
formulas:
X-Si(R
1)
3-m Z
m

[0051] In these structures m is an integer from 1 to 3, preferably 1; p is 0 or 1; q is
an integer from 2 to 6; n is an integer from 0 to 4, preferably 0 or 1, more preferably
0; R
1 is hydrogen, lower alkyl, alkoxy, hydroxyl, aryl, alkylamino, preferably R
1 is alkyl; R" is alkyl or hydrogen; X is
CH(R
3)==C(R
4)-
R
3 is hydrogen or -COOH, preferably hydrogen; R
4 is hydrogen, methyl or-CH
2COOH, preferably methyl; Z is
R
5-[Si(R
6)(R
7)-O-]
r
wherein R
5, R
6, and R
7, independently are lower alkyl, alkoxy, alkylamino, hydrogen or hydroxyl, preferably
alkyl; and r is an integer of from about 5 to about 700, preferably from about 60
to about 400, more preferably from about 100 to about 300. Most preferably, R
5, R
6, and R
7 are methyl, p = 0, and q = 3.
[0052] Silicone-containing adhesive and/or film-forming copolymers useful in the present
invention comprise from 0% to about 90%, preferably from about 10% to about 80%, more
preferably from about 40% to about 75% of hydrophobic monomer, from about 0% to about
90%, preferably from about 5% to about 80% of hydrophilic monomer, and from about
5% to about 50%, preferably from about 10% to about 40%, more preferably from about
15% to about 25% of silicone-containing monomer.
[0053] The composition of any particular copolymer will help determine its formulation properties.
In fact, by appropriate selection and combination of particular hydrophobic, hydrophilic
and silicone-containing components, the copolymer can be optimized for inclusion in
specific vehicles. For example, polymers which are soluble in an aqueous formulation
preferably contain from 0% to about 70%, preferably from about 5% to about 70% of
hydrophobic monomer, and from about 30% to about 98%, preferably from about 30% to
about 80%, of hydrophilic monomer, and from about 1% to about 40% of silicone-containing
monomer. Polymers which are dispersible preferably contain from 0% to about 70%, more
preferably from about 5% to about 70%, of hydrophobic monomer, and from about 20%
to about 80%, more preferably from about 20% to about 60%, of hydrophilic monomer,
and from about 1% to about 40% of silicone-containing monomer.
[0054] The silicone-containing copolymers preferably have a weight average molecular weight
of from about 10,000 to about 1,000,000, preferably from about 30,000 to about 300,000.
[0055] The preferred polymers comprise a vinyl polymeric backbone, preferably having a Tg
or a Tm as defined above of about -20°C. and, grafted to the backbone, a polydimethylsiloxane
macromer having a weight average molecular weight of from about 1,000 to about 50,000,
preferably from about 5,000 to about 40,000, most preferably from about 7,000 to about
20,000. The polymer is such that when it is formulated into the finished composition,
and then dried, the polymer phase separates into a discontinuous phase which includes
the polydimethylsiloxane macromer and a continuous phase which includes the backbone.
Exemplary silicone grafted polymers for use in the present invention include the following,
where the composition of the copolymer is given with the approximate weight percentage
of each monomer used in the polymerization reaction to prepare the copolymer: N,N-dimethylacrylamide/isobutyl
methacrylate/(PDMS macromer - 20,000 approximate molecular weight) (20/60/20 w/w/w),
copolymer of average molecular weight of about 400,000; N,N-dimethylacrylamide/(PDMS
macromer -20,000 approximate molecular weight) (80/20 w/w), copolymer of average molecular
weight of about 300,000; and t-butylacrylate/N,N-dimethylacrylamide/(PDMS macromer
- 10,000 approximate molecular weight) (70/10/20), copolymer of average molecular
weight of about 400,000.
[0056] Highly preferred shape retention copolymers of this type contain hydrophobic monomers,
silicone-containing monomers and hydrophilic monomers which comprise unsaturated organic
mono- and polycarboxylic acid monomers, such as acrylic acid, methacrylic acid, crotonic
acid, maleic acid and its half esters, itaconic acid, and salts thereof, and mixtures
thereof. These preferred polymers surprisingly provide control of certain amine type
malodors in fabrics, in addition to providing the fabric wrinkle control benefit.
A nonlimiting example of such copolymer is n-butylmethacrylate /acrylic acid/(polydimethylsiloxane
macromer, 20,000 approximate molecular weight) copolymer of average molecular weight
of about 100,000, and with an approximate monomer weight ratio of about 70/10/20.
A highly preferred copolymer is composed of acrylic acid, t-butyl acrylate and silicone-containing
monomeric units, preferably with from about 20% to about 90%, preferably from about
30% to about 80%, more preferably from about 50% to about 75% t-butyl acrylate; from
about 5% to about 60%, preferably from about 8% to about 45%, more preferably from
about 10% to about 30% of acrylic acid; and from about 5% to about 50%, preferably
from about 10% to about 40%, more preferably from about 15% to about 30% of polydimethylsiloxane
of an average molecular weight of from about 1,000 to about 50,000, preferably from
about 5,000 to about 40,000, most preferably from about 7,000 to about 20,000. Nonlimiting
examples of acrylic acid/tert-butyl acrylate/polydimethyl siloxane macromer copolymers
useful in the present invention, with approximate monomer weight ratio, are: t-butylacrylate/acrylic
acid/(polydimethylsiloxane macromer, 10,000 approximate molecular weight) (70/10/20
w/w/w), copolymer of average molecular weight of about 300,000; t-butyl acrylate/acrylic
acid/(polydimethylsiloxane macromer, 10,000 approximate molecular weight) (63/20/17),
copolymer of average molecular weight of from about 120,000 to about 150,000; and
n-butylmethacrylate/acrylic acid/ (polydimethylsiloxane macromer - 20,000 approximate
molecular weight) (70/10/20 w/w/w), copolymer of average molecular weight of about
100,000. A useful and commercially available copolymer of this type is Diahold
® ME from Mitsubishi Chemical Corp., which is a t-butyl acrylate/acrylic acid/ (polydimethylsiloxane
macromer, 12,000 approximate molecular weight) (60/20/20), copolymer of average molecular
weight of about 128,000.
(b) Silicone Block Copolymers
[0057] Also useful herein are silicone block copolymers comprising repeating block units
of polysiloxanes.
[0058] Examples of silicone-containing block copolymers are found in U.S. Patent No. 5,523,365,
to Geck et al., issued June 4, 1996; U.S. Patent No. 4,689,289, to Crivello, issued
Aug. 25, 1987; U.S. Patent No. 4,584,356, to Crivello, issued April 22, 1986;
Macromolecular Design, Concept & Practice, Ed: M. K. Mishra, Polymer Frontiers International, Inc., Hopewell Jct., NY (1994),
and
Block Copolymers, A. Noshay and J. E. McGrath, Academic Press, NY (1977), which are all incorporated
by reference herein in their entirety. Other silicone block copolymers suitable for
use herein are those described, along with methods of making them, in the above referenced
and incorporated U.S. Patent No. 5,658,577.
[0059] The silicone-containing block copolymers useful in the present invention can be described
by the formulas A-B, A-B-A, and -(A-B)
n- wherein n is an integer of 2 or greater. A-B represents a diblock structure, A-B-A
represents a triblock structure, and -(A-B)
n- represents a multiblock structure. The block copolymers can comprise mixtures of
diblocks, triblocks, and higher multiblock combinations as well as small amounts of
homopolymers.
[0060] The silicone block portion, B, can be represented by the following polymeric structure
--(SiR
2O)
m--,
wherein each R is independently selected from the group consisting of hydrogen, hydroxyl,
C
1-C
6 alkyl, C
1-C
6 alkoxy, C
2-C
6 alkylamino, styryl, phenyl, C
1-C
6 alkyl or alkoxy-substituted phenyl, preferably methyl; and m is an integer of about
10 or greater, preferably of about 40 or greater, more preferably of about 60 or greater,
and most preferably of about 100 or greater.
[0061] The non-silicone block, A, comprises monomers selected from the monomers as described
hereinabove in reference to the non-silicone hydrophilic and hydrophobic monomers
for the silicone grafted copolymers. Vinyl blocks are preferred co-monomers. The block
copolymers preferably contain one or more non-silicone blocks, and up to about 50%,
preferably from about 10% to about 20%, by weight of one or more polydimethyl siloxane
blocks.
(c) Sulfur-Linked Silicone-Containing Copolymers
[0062] Also useful herein are sulfur-linked silicone containing copolymers, including block
copolymers. As used herein in reference to silicone containing copolymers, the term
"sulfur-linked" means that the copolymer contains a sulfur linkage (i.e., -S-), a
disulfide linkage (i.e., -S-S-), or a sulfhydryl group (i.e.,-SH).
[0063] These sulfur-linked silicone-containing copolymers are represented by the following
general formula:

wherein
each G5 and G6 is independently selected from the group consisting of alkyl, aryl, alkaryl, alkoxy,
alkylamino, fluoroalkyl, hydrogen, and -ZSA, wherein A represents a vinyl polymeric
segment consisting essentially of polymerized free radically polymerizable monomer,
and Z is a divalent linking group (Useful divalent linking groups Z include but are
not limited to the following: C1 to C10 alkylene, alkarylene, arylene, and alkoxyalkylene. Preferably, Z is selected from
the group consisting of methylene and propylene for reasons of commercial availability.);
each G2 comprises A;
each G4 comprises A;
each R1 is a monovalent moiety selected from the group consisting of alkyl, aryl, alkaryl,
alkoxy, alkylamino, fluoroalkyl, hydrogen, and hydroxyl (Preferably, R1 represents monovalent moieties which can independently be the same or different selected
from the group consisting of C1-4 alkyl and hydroxyl for reasons of commercial availability. Most preferably, R1 is methyl.);
each R2 is a divalent linking group (Suitable divalent linking groups include but are not
limited to the following: C1 to C10 alkylene, arylene, alkarylene, and alkoxyalkylene. Preferably, R2 is selected from the group consisting of Cl_3 alkylene and C7-C10 alkarylene due to ease of synthesis of the compound. Most preferably, R2 is selected from the group consisting of-CH2-, 1,3-propylene, and

each R3 represents monovalent moieties which can independently be the same or different and
are selected from the group consisting of alkyl, aryl, alkaryl, alkoxy, alkylamino,
fluoroalkyl, hydrogen, and hydroxyl (Preferably, R3 represents monovalent moieties which can independently be the same or different selected
from the group consisting of C1-4 alkyl and hydroxyl for reasons of commercial availability. Most preferably, R3 is methyl.);
each R4 is a divalent linking group(Suitable divalent linking groups include but are not
limited to the following: C1 to C10 alkylene, arylene, alkarylene, and alkoxyalkylene. Preferably, R4 is selected from the group consisting of C1-3 alkylene and C7-C10 alkarylene for ease of synthesis. Most preferably, R4 is selected from the group consisting of -CH2-, 1,3-propylene, and

x is an integer of 0-3;
y is an integer of 5 or greater(preferably y is an integer ranging from about 14 to
about 700, preferably from about 20 to about 200); and
q is an integer of 0-3;
wherein at least one of the following is true:
q is an integer of at least 1;
x is an integer of at least 1;
G5 comprises at least one -ZSA moiety; or
G6 comprises at least one -ZSA moiety.
[0064] As noted above, A is a vinyl polymeric segment formed from polymerized free radically
polymerizable monomers. The selection of A is typically based upon the intended uses
of the composition, and the properties the copolymer must possess in order to accomplish
its intended purpose. If A comprises a block in the case of block copolymers, a polymer
having AB and/or ABA architecture will be obtained depending upon whether a mercapto
functional group -SH is attached to one or both terminal silicon atoms of the mercapto
functional silicone compounds, respectively. The weight ratio of vinyl polymer block
or segment, to silicone segment of the copolymer can vary. The preferred copolymers
are those wherein the weight ratio of vinyl polymer segment to silicone segment ranges
from about 98:2 to 50:50, in order that the copolymer possesses properties inherent
to each of the different polymeric segments while retaining the overall polymer's
solubility.
[0065] Sulfur linked silicone copolymers are described in more detail in U.S. Patent No.
5,468,477, to Kumar et al., issued November 21, 1995, and PCT Application No. WO 95/03776,
assigned to 3M, published February 9, 1995, which are incorporated by reference herein
in their entirety.
2)-Polymers comprising at least one unit which provide a dye transfer inhibiting benefit
[0066] The preferred polymers comprising at least one unit which provide a dye transfer
inhibiting benefit are water-soluble polymers.
[0067] The polymers comprising at least one unit which provide a dye transfer inhibiting
benefit useful in the present invention have the formula:
[-P(D)
m-]
n
wherein the unit P is a polymer backbone which comprises units which are homopolymeric
or copolymeric. D units are defined herein below. For the purposes of the present
invention the term "homopolymeric" is defined as "a polymer backbone which is comprised
of units having the same unit composition, i.e., formed from polymerization of the
same monomer". For the purposes of the present invention the term "copolymeric" is
defined as "a polymer backbone which is comprised of units having a different unit
composition, i.e., formed from the polymerization of two or more monomers".
[0068] P backbones preferably comprise units having the formula:
-[CR
2-CR
2]- or -[(CR
2)
x-L]-
wherein each R unit is independently hydrogen, C
1-C
12 alkyl, C
6-C
12 aryl, and D units as described herein below; preferably C
1-C
4 alkyl.
[0069] Each L unit is independently selected from heteroatom-containing moieties, non-limiting
examples of which are selected from the group consisting of:

polysiloxane having the formula:

wherein the index p is from 1 to about 6; units which have dye transfer inhibition
activity:

and mixtures thereof; wherein R
1 is hydrogen, C
1-C
12 alkyl, C
6-C
12 aryl, and mixtures thereof. R
2 is C
1-C
12 alkyl, C
1-C
12 alkoxy, C
6-C
12 aryloxy, and mixtures thereof; preferably methyl and methoxy. R
3 is hydrogen C
1-C
12 alkyl, C
6-C
12 aryl, and mixtures thereof; preferably hydrogen or C
1-C
4 alkyl, more preferably hydrogen. R
4 is C
1-C
12 alkyl, C
6-C
12 aryl, and mixtures thereof.
[0070] The backbones of the polymers of the present invention comprise one or more D units
which are units which comprise one or more units which provide a dye transfer inhibiting
benefit. The D unit can be part of the backbone itself as represented in the general
formula:
[-P(D)
m-]
n
or the D unit may be incorporated into the backbone as a pendant group to a backbone
unit having, for example, the formula:

[0071] However, the number of D units depends upon the formulation. For example, the number
of D units will be adjusted to provide water solubility of the polymer as well as
efficacy of dye transfer inhibition. The molecular weight of the polymers of the present
invention are from about 500, preferably from about 1,000, more preferably from about
10,000 most preferably from 200,000 to about 6,000,000, preferably to about 2,000,000,
more preferably to about 1,000,000, yet more preferably to about 500,000, most preferably
to about 360,000 daltons. Therefore the value of the index n is selected to provide
the indicated molecular weight, and providing for a water solubility of at least 100
ppm, preferably at least about 300 ppm, and more preferably at least about 1,000 ppm
in water at ambient temperature which is defined herein as 25°C.
Polymers Comprising Amide Units
[0072] Non-limiting examples of preferred D units are D units which comprise an amide moiety.
Examples of polymers wherein an amide unit is introduced into the polymer via a pendant
group includes polyvinylpyrrolidone having the formula:

polyvinyloxazolidone having the formula:

polyvinylmethyloxazolidone having the formula:

polyacrylamides and N-substituted polyacrylamides having the formula:

wherein each R' is independently hydrogen, C
1-C
6 alkyl, or both R' units can be taken together to form a ring comprising 4-6 carbon
atoms; polymethacrylamides and N-substituted polymethacrylamides having the general
formula:

wherein each R' is independently hydrogen, C
1-C
6 alkyl, or both R' units can be taken together to form a ring comprising 4-6 carbon
atoms; poly(N-acrylylglycinamide) having the formula:

wherein each R' is independently hydrogen, C
1-C
6 alkyl, or both R' units can be taken together to form a ring comprising 4-6 carbon
atoms; poly(N-methacrylylglycinamide) having the formula:

wherein each R' is independently hydrogen, C
1-C
6 alkyl, or both R' units can be taken together to form a ring comprising 4-6 carbon
atoms; polyvinylurethanes having the formula:

wherein each R' is independently hydrogen, C
1-C
6 alkyl, or both R
' units can be taken together to form a ring comprising 4-6 carbon atoms.
[0073] An example of a D unit wherein the nitrogen of the dye transfer inhibiting moiety
is incorporated into the polymer backbone is a poly(2-ethyl-2-oxazoline) having the
formula:

wherein the index n indicates the number of monomer residues present.
[0074] The amino-functional polymers of the present invention can comprise any mixture of
dye transfer inhibition units which provides the product with suitable properties.
The preferred polymers which comprise D units which are amide moieties are those which
have the nitrogen atoms of the amide unit highly substituted so the nitrogen atoms
are in effect shielded to a varying degree by the surrounding non-polar groups. This
provides the polymers with an amphiphilic character. Non-limiting examples include
polyvinyl-pyrrolidones, polyvinyloxazolidones, N,N-disubstituted polyacrylamides,
and N,N-disubstituted polymethacrylamides. A detailed description of physico-chemical
properties of some of these polymers are given in "Water-Soluble Synthetic Polymers:
Properties and Behavior", Philip Molyneux, Vol. I, CRC Press, (1983) included herein
by reference.
[0075] The amide containing polymers may be present partially hydrolyzed and/or crosslinked
forms. A preferred polymeric compound for the present invention is polyvinylpyrrolidone
(PVP). This polymer has an amphiphilic character with a highly polar amide group conferring
hydrophilic and polar-attracting properties, and also has non-polar methylene and
methine groups, in the backbone and/or the ring, conferring hydrophobic properties.
PVP is readily soluble in aqueous and organic solvent systems. PVP is available ex
ISP, Wayne, New Jersey, and BASF Corp., Parsippany, New Jersey, as a powder or aqueous
solutions in several viscosity grades, designated as, e.g., K-12, K-15, K-25, and
K-30. These K-values indicate the viscosity average molecular weight, as shown below:

PVP K-12, K-15, and K-30 are also available ex Polysciences, Inc. Warrington, Pennsylvania,
PVP K-15, K-25, and K-30 and poly(2-ethyl-2-oxazoline) are available ex Aldrich Chemical
Co., Inc., Milwaukee, Wisconsin. PVP K30 (40,000) through to K90 (360,000) are also
commercially available ex BASF under the tradename Luviskol or commercially available
ex ISP. Still higher molecular PVP like PVP 1.3MM, commercially available ex Aldrich
is also suitable for use herein. Yet further PVP-type of material suitable for use
in the present invention are polyvinylpyrrolidone-co-dimethylaminoethylmethacrylate,
commercially available ex ISP in a quaternised form under the tradename Gafquat® or
commercially available ex Aldrich Chemical Co. having a molecular weight of approximately
1.OMM; copolymer of 3-methyl-1-vinyl-1H-imidazolium chloride and 1-vinyl-2-pyrrolidone
(30:70) ex BASF under the tradename Luviquat FC370, polyvinylpyrrolidone-co-vinyl
acetate, available ex BASF under the tradename Luviskol®, available in vinylpyrrolidone:vinylacetate
ratios of from 3:7 to 7:3; polyvinylpyrrolidine-co-vinylimidazoliumquat, commercially
available ex BASF under the tradename Luviquat®.
Polymers Comprising N-oxide Units
[0076] Another D unit which provides dye transfer inhibition enhancement to the polymers
described herein, are N-oxide units having the formula:

wherein R
1, R
2, and R
3 can be any hydrocarbyl unit (for the purposes of the present invention the term "hydrocarbyl"
does not include hydrogen atom alone). The N-oxide unit may be part of a polymer,
such as a polyamine, i.e., polyalkyleneamine backbone, or the N-oxide may be part
of a pendant group attached to the polymer backbone. An example of a polymer which
comprises an the N-oxide unit as a part of the polymer backbone is polyethyleneimine
N-oxide. Non-limiting examples of groups which can comprise an N-oxide moiety include
the N-oxides of certain heterocycles
inter alia pyridine, pyrrole, imidazole, pyrazole, pyrazine, pyrimidine, pyridazine, piperidine,
pyrrolidine, pyrrolidone, azolidine, morpholine. A preferred polymer is poly(4-vinylpyriding
N-oxide, PVNO). In addition, the N-oxide unit may be pendant to the ring, for example,
aniline oxide.
[0077] N-oxide comprising polymers of the present invention will preferably have a ratio
of N-oxidized amine nitrogen to non-oxidized amine nitrogen of from about 1:0 to about
1:2, preferably to about 1:1, more preferably to about 3:1. The amount of N-oxide
units can be adjusted by the formulator. For example, the formulator may co-polymerize
N-oxide comprising monomers with non N-oxide comprising monomers to arrive at the
desired ratio of N-oxide to non N-oxide amino units, or the formulator may control
the oxidation level of the polymer during preparation. The amine oxide unit of the
polyamine N-oxides of the present invention have a Pk
a less than or equal to 10, preferably less than or equal to 7, more preferably less
than or equal to 6. The average molecular weight of the N-oxide comprising polymers
which provide a dye transfer inhibitor benefit to polymers is from about 500 daltons,
preferably from about 10,000 daltons, more preferably from about 20,000 daltons to
about 6,000,000 daltons, preferably to about 2,000,000 daltons, more preferably to
about 360,000 daltons.
Polymers Comprising Amide Units and N-oxide Units
[0078] A further example of polymers which have dye transfer inhibition benefits are polymers
which comprise both amide units and N-oxide units as described herein above. Non-limiting
examples include co-polymers of two monomers wherein the first monomer comprises an
amide unit and the second monomer comprises an N-oxide unit. In addition, oligomers
or block polymers comprising these units can be taken together to form the mixed amide/N-oxide
polymers.
[0079] However, the resulting polymers must retain the water solubility requirements described
herein above.
3)-Urethanes polymers
[0080] Polymers of the urethane type are also suitable components for use herein. A typical
disclosure of polyurethane polymer can be found in EP844274A1 as well as in EP839903.
4)-lsomaltooligosaccharide
[0081] Isomaltooligosaccharides (IMO) (including mixtures), the individual components of
said mixtures, substituted versions thereof, derivatised versions thereof, and mixtures
thereof are suitable components for use herein. Currently IMO is used as corn syrup.
These components are particularly suitable where cellulosic fibers/fabrics are used,
such as cotton, rayon, ramie, jute, flax, linen, polynosic-fibers, Lyocell (Tencel
®), polyester/cotton blends, other cotton blends, and the like, especially cotton,
rayon, linen, polyester/cotton blends, and mixtures thereof.
[0082] Suitable fabric improving actives that are useful in the present invention include
oligosaccharides with a degree of polymerization (DP) of from about 1 to about 15,
preferably from about 2 to about 10, and wherein each monomer is selected from the
group consisting of reducing saccharide containing 5 and/or 6 carbon atoms, including
isomaltose, isomaltotriose, isomaltotetraose, isomaltooligosaccharide, fructooligosaccharide,
levooligosaccharides, galactooligosaccharide, xylooligosaccharide, gentiooligosaccharides,
disaccharides, glucose, fructose, galactose, xylose, mannose, arabinose, rhamnose,
maltose, sucrose, lactose, maltulose, ribose, lyxose, allose, altrose, gulose, idose,
talose, trehalose, nigerose, kojibiose, lactulose, oligosaccharides, maltooligosaccharides,
trisaccharides, tetrasaccharides, pentasaccharides, hexasaccharides, oligosaccharides
from partial hydrolysates of natural polysaccharide sources, and the like, and mixtures
thereof, preferably mixtures of isomaltooligosaccharides, especially mixtures including
isomaltooligosaccharides, comprising from about 3 to about 7 units of glucose, respectively,
and which are linked by 1,2-α, 1,3-α, 1,4-α- and 1,6-α-linkages, and mixtures of these
linkages. Oligosaccharides containing b-linkages are also preferred. Preferred oligosaccharides
are acyclic and have at least one linkage that is not an α-1,4-glycosidic bond. A
preferred oligosaccharide is a mixture containing IMO: from 0 to about 20 % by weight
of glucose, from about 10 to about 65 % of isomaltose, from about 1% to about 45%
of each of isomaltotriose, isomaltetraose and isomaltopentaose, from 0 to about 3
% of each of isomaltohexaose, isomaltoheptaose, isomaltooctaose and isomaltononaose,
from about 0.2% to about 15% of each of isomaltohexaose and isomaltoheptaose, and
from 0 to about 50 % by weight of said mixture being isomaltooligosaccharides of 2
to 7 glucose units and from 0 to about 10 % by weight of said mixture being isomaltooligosaccharides
of about 7 to about 10 glucose units. Other nonlimiting examples of preferred acyclic
oligosaccharides, with approximate content by weight percent, are:
| Isomaltooligosaccharide Mixture I |
| Trisaccharides (maltotriose, panose, isomaltotriose) |
40-65% |
| Disaccharides (maltose, isomaltose) |
5-15% |
| Monosaccharide (glucose) |
0-20% |
| Higher branched sugars (4 < DP < 10) |
10-30% |
| Isomaltooligosaccharide Mixture II |
| Trisaccharides (maltotriose, panose, isomaltotriose) |
10-25% |
| Disaccharides (maltose, isomaltose) |
10-55% |
| Monosaccharide (glucose) |
10-20% |
| Higher branched sugars (4 < DP < 10) |
5-10% |
| Isomaltooligosaccharide Mixture III |
| Tetrasaccharides (stachyose) |
10-40% |
| Trisaccharides (raffinose) |
0-10% |
| Disaccharides (sucrose, trehalose) |
10-50% |
| Monosaccharide (glucose, fructose) |
0-10% |
| Other higher branched sugars (4 < DP <10) |
0 - 5% |
[0083] Oligosaccharide mixtures are either prepared by enzymatic reactions or separated
as natural products from plant materials. The enzymatic synthesis of oligosaccharides
involves either adding monosaccharides, one at a time, to a di- or higher saccharide
to produce branched oligosaccharides, or it can involve the degradation of polysaccharides
followed by transfer of saccharides to branching positions. For instance, Oligosaccharide
Mixtures I and II are prepared by enzymatic hydrolysis of starch to maltooligosaccharides,
which are then converted to isomaltooligosaccharides by a transglucosidase reaction.
Oligosaccharide Mixture III, for example, is a mixture of oligosaccharides isolated
from soybean. Soybean oligosaccharides such as Mixture III, are of pure natural origin.
[0084] Substituted and/or derivatised materials of the oligosaccharides listed hereinabove
are also suitable in the present invention. Nonlimiting examples of these materials
include: carboxyl and hydroxymethyl substitutions (e.g., glucuronic acid instead of
glucose); amino oligosaccharides (amine substitution, e.g., glucosamine instead of
glucose); cationic quaternized oligosaccharides; C
1-C
6 alkylated oligosaccharides; acetylated oligosaccharide ethers; oligosaccharides having
amino acid residues attached (small fragments of glycoprotein); oligosaccharides containing
silicone moieties. These substituted and/or derivatised oligosaccharides can provide
additional benefits, such as: carboxyl and hydroxymethyl substitutions can introduce
readily oxidizable materials on and in the fiber, thus reducing the probability of
the fiber itself being oxidized by oxidants, such as bleaches; amine substitution
can bind and/or condense with oxidatively damaged regions of the fiber to rejuvenate
aged fabrics; acetylated sugar ethers can serve as bleach activators in subsequent
processes where hydrogen peroxide is present; oligosaccharides having amino acid residues
can improve delivery of fabric care benefits for fabrics containing proteinaceous
fibers, e.g., wool and silk; and silicone-derivatised oligosaccharides can provide
additional fabric softness and lubricity. C
6 alkyl oligosaccharide is disclosed (along with other higher, viz., C
6-C
30, alkyl polysaccharides) in U.S. Pat. 4,565,647. Typical disclosure of C
1-C
6 alkylated oligosaccharides can also be found in U.S. 4,488,981. These patents are
incorporated herein by reference.
[0085] One preferred isomaltooligosaccharide is IMO 900 commercially available from Showa
Sangyo Co.)
5)- Polyvinylamines polymers
[0086] Polyvinylamines polymers are also suitable component giving a deviation of fabric
WRA of at least 15. Typical polyvinylamines polymers include the the quaternized and
non-quaternized polyvinylamines having the formula:

wherein R is hydrogen, C1-C12 linear or branched alkyl, benzyl, or alkyleneoxy having
the formula (R10)zY, wherein R1 is C1-C6 linear or branched alkylene, Y is hydrogen
or an anionic unit, non-limiting examples of which include,-(CH2)fCO2M, -C(O)(CH2)fCO2M,
-(CH2)fPO3M, -(CH2)fOPO3M,-(CH2)fSO3M, -CH2(CHSO3M)-(CH2)fSO3M, -CH2(CHSO2M)(CH2)fSO3M,-C(O)CH2CH(SO3M)CO2M,
-C(O)CH2CH(CO2M)NHCH(CO2M)CH2CO2M,-C(O)CH2CH(CO2M)NHCH2CO2M, -CH2CH(OZ)CH2O(R1O)tZ,-(CH2)fCH[O(R2O)tZ]CH2O(R2O)tZ,
and mixtures thereof, wherein Z is hydrogen or an anionic unit non-limiting examples
of which include-(CH2)fCO2M, -C(O)(CH2)fCO2M, -(CH2)fPO3M, -(CH2)fOPO3M,-(CH2)fSO3M,
-CH2(CHSO3M)-(CH2)fSO3M, -CH2(CHSO2M)(CH2)fSO3M,-C(O)CH2CH(SO3M)CO2M, -C(O)CH2CH(CO2M)NHCH(CO2M)CH2CO2M,
and mixtures thereof, M is a cation which provides charge neutrality; and the index
f is from 0 to 6, t is 0 or 1, z is from 1 to 50.
The index x has the value from about 50 to about 1,500; preferably the index x has
a value such that the resulting polymeric suds stabilizer has an average molecular
weight of from about 2,500, preferably from about 10,000, more preferably from about
20,000 to about 150,000, preferably to about 90,000, more preferably to about 80,000
daltons.
[0087] Most preferred polymers for use in the present invention are water-soluble, including
IMO 900 (Isomaltose Oligosaccharide ex. Showa Sangyo Co.), Avalure AC 120 (Polyacrylate
ex. BF Goodrich), Luviskol K30, K60 and K85 (Polyvinylpyrrolidone MW 40.000, 400.000
and 1.250.000 ex. BASF), Luvitec VPC 55K65W (copolymer Vinylpyrrolidone & Vinylcaprolactam
ex. BASF), Luvitec Quat 73W (copolymer 1-methyl-3-vinyl-imidazolium-methylsulfate
& 1-vinyl-2-pyrrolidone ex. BASF), Luviquat FC 905 (copolymer Vinylimidazolium methochloride
& Vinylpyrrolidone ex. BASF), Sedipur 520 (modified Polyacrylamide ex. BASF), Chitanide
222 (Chitosan succinamide ex. MIP), Mirasil ADM-E (Aminodimethicone ex. Rhone-Poulenc),
Percol 370 (diallyl amine polymer ex. CIBA), Amphomer HC (Acrylate / Octylacrylamide
copolymer ex. National Starch), and mixtures thereof.
[0088] More preferably, the water-soluble lubricant and the component, preferably polymer,
having a deviation of fabric WRA of at least +15 are present in weight ratios of water-soluble
lubricant to component of from 10:1 to 1:1. Indeed, it has been found that within
these ratio ranges the resulting composition provides best in wear wrinkle benefit.
Optionals
[0089] The composition of the invention may also comprises one or more of the following
optional ingredients.
1)- Durable press polymer
[0090] Durable press polymers are optional components of the invention. These polymers can
be a cross-linking resin having the property of being cationic. By "cross-linking
resin having the property of being cationic", it is meant that the resin is at least
partially positively charged. It is not however necessary that the reactive part of
the molecule carries the positive charge. Indeed, polymeric resins can be based on
positively charged monomers which help the deposition on the fibers.
[0091] Cross-linking resins having the property of being cationic suitable for use herein
are those commonly known as having wet strength in the paper field. At least two mechanisms
have been postulated to account for the mechanism by which wet strength resin act.
One is that wet strength resins form covalent bonds between adjacent fibers while
another is that the wet strength resin places a layer over the hydrogen bonds formed
between adjacent paper fibers and thus prevents water from breaking the hydrogen bonds.
[0092] Conventional wet-strength agents suitable for use herein include compounds made of
epichlorohydrin adducts of polyamine resins, polyethyleneimine resins, cationic starch,
polydiallyldimethylammonium chloride, and mixtures thereof, amine-aldehyde resins
such as melamine-formaldehyde resin, amide-aldehyde resins, and mixtures thereof.
For use within the meaning of the present invention, there can also be used materials
of the above-mentioned classes of substances which admittedly do not themselves possess
any outstanding wet-strength properties but, nevertheless, have the same durable press
effect as do the wet-strength agents as described therein.
[0093] Among the class of epichlorohydrin adducts of polyamine resins, polyethyleneimine
resins, cationic starch, polydiallyldimethylammonium chloride, and mixtures thereof,
the preferred components are the polymeric amine-epichlorohydrin resins selected from
the group consisting of a polyamide-epichlorohydrin (PAE) resin, a polyalkylenepolyamine-epichlorohydrin
(PAPAE) resin, and an amine polymer-epichlorohydrin (APE) resin, in which the amine
groups have been alkylated with epichlorohydrin to produce a polyamine-epichlorohydrin
resin that has azetidinium or epoxide functionality. Preferably, for use herein, the
cross-linking resin having cationic properties is a cationic wet strength resin that
is produced by reacting a saturated aliphatic dicarboxylic acid containing three to
ten carbon atoms with a polyalkylenepolyamine, containing from two to four ethylene
groups, two primary amine groups, and one to three secondary amine groups (such as
diethylenetriamine, triethylenetetramine and tetraethylenepentamine), to form a poly(aminoamide)
having secondary amine groups that are alkylated with epichlorohydrin to form a PAE
resin.
[0094] These polyamide/polyamine/epichlorohydrin wet-strength resins are fully described
by Carr, Doane, Hamerstrand and Hofreiter, in an article appearing in the Journal
of Applied Polymer Science Vol. 17, pp. 721-735 (1973). Such resins are available
as KYMENE from Hercules, Inc. A commercial synthesis of such resins from adipic acid,
diethylene triamine and epichlorohydrin is described in the Carr et al publication,
ibid., and is U.S. Pat. No. 2,926,154 (Feb. 23, 1960) to G. I. Keim or US 4,240,995.
Reference can be made to these publications for further details regarding the preparation
of polyamide/polyamine/epichlorohydrin resins.
[0095] Most preferred cross-linking resin having cationic properties from this class are
the wet strength resin Kymene 557H (available from Hercules Incorporated), in which
adipic acid is reacted with diethylenetriamine to form a poly(aminoamide) that is
alkylated and crosslinked with epichlorohydrin to form a PAE resin. Still another
preferred cross-linking resin having cationic properties made of epichlorohydrin are
Luresin.RTM and Etadurin which both are polyamidoamine-epichlorohydrin resins.
[0096] Amine-aldehyde resins are suitable cross-linking resins for the present invention
and are made by condensation of amine or amide monomers with aldehydes such as formaldehyde
or glyoxal. Preferred amines are those having low molecular weight amines e.g. melamine
or polymeric amines e.g. poly-diallylamine, preferably quarternized. Preferred amides
are those polymeric amides such as polyacrylamide. All these suitable amine/amide
monomers can also be copolymerized with cationic monomers.
[0097] Among the class of amine-aldehyde cross-linking resin, preferred are those from the
class of melamine-formaldehyde resin. Melamine-formaldehyde resins of this type are
known as crosslinking agents of this type in the coating industry and are also described,
for example, in German Auslegeschrift Nos. 2,457,387 (U.S. Pat. No. 4,035,213 incorporated
herein by reference) and 1,719,324 and, in particular, in U.S. Pat. No. 3,242,230
incorporated herein by reference.
[0098] Preferred melamine-formaldehyde resin are those commercially available under the
tradenames Madurit, and Cassurit from Clariant.
[0099] Still other preferred cross-linking resin having the property of being cationic among
the class of amine-aldehyde cross-linking resin are the Poly(acrylamide-glyoxal) resin
commercially available under the tradename SOLIDURIT KM from Clariant.
[0100] According to the present invention, there can also be used a mixture of wet-strength
agents of the above-mentioned types or equivalent compounds.
[0101] Preferably for the purpose of the invention, the cross-linking resin having cationic
properties have a molecular weight between 200 and 1,000,000, preferably between 500
and 100,000, most preferably between 1000 and 25,000. Cross-linking resin having a
low molecular weight are most preferred for use in the present invention as they are
more water-soluble and have a better fiber penetration. By low molecular weight it
is meant a molecular weight within the range of from 25 to 2000, preferably from 50
to 1000, and more preferably from 50 to 500.
[0102] It is desirable if the level of cross-linking components or derivative thereof is
present in an amount of from 0.01% to 60%, preferably from 0.01% to 30% by weight
of the total composition
[0103] It is advantageous for aldehyde containing cross-linking resins if a catalyst is
used with compositions of the invention. Preferred catalysts includes organic acids
such as citric acid, succinic acid, and tartaric acids, as well as conventional Lewis
acid such as Al Cl
3 or MgCl
2, or salts thereof, or mixtures thereof. A typical example of catalyst is the catalyst
NKD made of a mixture of salts and organic acid, and commercially available from Hoechst.
[0104] It is preferred if the level of catalyst is from 10% to 50%, preferably from 20 to
40% by weight of the cross-linking components or derivative thereof.
[0105] For other cross-linking resins like the Kymene, the use of a catalyst is not necessary.
(2)Liquid carrier
[0106] Another optional, but preferred, ingredient is a liquid carrier. The liquid carrier
employed in the instant compositions is preferably at least primarily water due to
its low cost, relative availability, safety, and environmental compatibility. The
level of water in the liquid carrier is preferably at least about 50%, most preferably
at least about 60%, by weight of the carrier. Mixtures of water and low molecular
weight, e.g., <about 200, organic solvent, e.g., lower alcohols such as ethanol, propanol,
isopropanol or butanol are useful as the carrier liquid. Low molecular weight alcohols
include monohydric, dihydric (glycol, etc.) trihydric (glycerol, etc.), and higher
polyhydric (polyols) alcohols.
(3) Dispersibility Aids
[0107] Relatively concentrated compositions containing both saturated and unsaturated diester
quaternary ammonium compounds can be prepared that are stable without the addition
of concentration aids. However, the compositions of the present invention may require
organic and/or inorganic concentration aids to go to even higher concentrations and/or
to meet higher stability standards depending on the other ingredients. These concentration
aids which typically can be viscosity modifiers may be needed, or preferred, for ensuring
stability under extreme conditions when particular softener active levels are used.
The surfactant concentration aids are typically selected from the group consisting
of (1) single long chain alkyl cationic surfactants; (2) nonionic surfactants; (3)
amine oxides; (4) fatty acids; and (5) mixtures thereof. These aids are described
in WO 94/20597, specifically on page 14, line 12 to page 20, line 12, which is herein
incorporated by reference.
When said dispersibility aids are present , the total level is from 0.1% to 20%, preferably
from 0.2% to 10%, more preferably from 0.5% to 5%, and even more preferably from 1%
to 2% by weight of the composition. These materials can either be added as part of
the active softener raw material, (I), e.g., the mono-long chain alkyl cationic surfactant
and/or the fatty acid which are reactants used to form the biodegradable fabric softener
active as discussed hereinbefore, or added as a separate component. The total level
of dispersibility aid includes any amount that may be present as part of component
(I).
[0108] Inorganic viscosity/dispersibility control agents which can also act like or augment
the effect of the surfactant concentration aids, include water-soluble, ionizable
salts which can also optionally be incorporated into the compositions of the present
invention. A wide variety of ionizable salts can be used. Examples of suitable salts
are the halides of the Group IA and IIA metals of the Periodic Table of the Elements,
e.g., calcium chloride, magnesium chloride, sodium chloride, potassium bromide, and
lithium chloride. The ionizable salts are particularly useful during the process of
mixing the ingredients to make the compositions herein, and later to obtain the desired
viscosity. The amount of ionizable salts used depends on the amount of active ingredients
used in the compositions and can be adjusted according to the desires of the formulator.
Typical levels of salts used to control the composition viscosity are from about 20
to about 20,000 parts per million (ppm), preferably from about 20 to about 11,000
ppm, by weight of the composition.
Alkylene polyammonium salts can be incorporated into the composition to give viscosity
control in addition to or in place of the water-soluble, ionizable salts above. In
addition, these agents can act as scavengers, forming ion pairs with anionic detergent
carried over from the main wash, in the rinse, and on the fabrics, and may improve
softness performance. These agents may stabilize the viscosity over a broader range
of temperature, especially at low temperatures, compared to the inorganic electrolytes.
Specific examples of alkylene polyammonium salts include l-lysine monohydrochloride
and 1,5-diammonium 2-methyl pentane dihydrochloride.
(4)-Stabilizers
[0109] Stabilizers can be present in the compositions of the present invention. The term
"stabilizer," as used herein, includes antioxidants and reductive agents. These agents
are present at a level of from 0% to about 2%, preferably from about 0.01% to about
0.2%, more preferably from about 0.035% to about 0.1% for antioxidants, and more preferably
from about 0.01% to about 0.2% for reductive agents. These assure good odor stability
under long term storage conditions for the compositions and compounds stored in molten
form. The use of antioxidants and reductive agent stabilizers is especially critical
for low scent products (low perfume).
[0110] Examples of antioxidants that can be added to the compositions of this invention
include a mixture of ascorbic acid, ascorbic palmitate, propyl gallate, available
from Eastman Chemical Products, Inc., under the trade names Tenox® PG and Tenox S-1;
a mixture of BHT (butylated hydroxytoluene), BHA (butylated hydroxyanisole), propyl
gallate, and citric acid, available from Eastman Chemical Products, Inc., under the
trade name Tenox-6; butylated hydroxytoluene, available from UOP Process Division
under the trade name Sustane® BHT; tertiary butylhydroquinone, Eastman Chemical Products,
Inc., as Tenox TBHQ; natural tocopherols, Eastman Chemical Products, Inc., as Tenox
GT-1/GT-2; and butylated hydroxyanisole, Eastman Chemical Products, Inc., as BHA;
long chain esters (C
8-C
22) of gallic acid, e.g., dodecyl gallate; Irganox® 1010; Irganox® 1035; Irganox® B
1171; Irganox® 1425; Irganox® 3114; Irganox® 3125; and mixtures thereof; preferably
Irganox® 3125, Irganox ® 1425, Irganox® 3114, and mixtures thereof; more preferably
Irganox® 3125 alone. The chemical names and CAS numbers for some of the above stabilizers
are listed in Table II below.
TABLE II
| Antioxidant |
CAS No. |
Chemical Name used in Code of Federal Regulations |
| Irganox® 1010 |
6683-19-8 |
Tetrakis (methylene(3,5-di-tert-butyl-4 hydroxyhydrocinnamate)) methane |
| Irganox® 1035 |
41484-35-9 |
Thiodiethylene bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate |
| Irganox® 1098 |
23128-74-7 |
N,N'-Hexamethylene bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamamide |
| Irganox® B 1171 |
31570-04-4 23128-74-7 |
1:1 Blend of Irganox® 1098 and Irgafos® 168 |
| Irganox® 1425 |
65140-91-2 |
Calcium bis(monoethyl(3,5-di-tert-butyl-4-hydroxybenzyl)phosphonate) |
| Irganox® 3114 |
65140-91-2 |
Calcium bis(monoethyl(3,5-di-tert-butyl-4- |
| |
|
hydroxybenzyl)phosphonate) |
| Irganox® 3125 acid |
34137-09-2 |
3,5-Di-tert-butyl-4-hydroxy-hydrocinnamic |
| Irgafos® 168 |
31570-04-4 |
triester with 1,3,5-tris(2-hydroxyethyl)-S-triazine-2,4,6-(1H, 3H, 5H)-trione Tris(2,4-di-tert-butyl-phenyl)phosphite |
[0111] Examples of reductive agents include sodium borohydride, hypophosphorous acid, Irgafos®
168, and mixtures thereof.
5- PRESERVATIVE
[0112] Optionally, but preferably, antimicrobial preservative can be added to the composition
of the present invention. Contamination by certain microorganisms with subsequent
microbial growth can result in an unsightly and/or malodorous solution. Because microbial
growth in solutions is highly objectionable when it occurs, it is highly preferable
to include an antimicrobial preservative, which is effective for inhibiting and/or
regulating microbial growth in order to increase storage stability of the composition.
[0113] It is preferable to use a broad spectrum preservative, e.g., one that is effective
on both bacteria (both gram positive and gram negative) and fungi. A limited spectrum
preservative, e.g., one that is only effective on a single group of microorganisms,
e.g., fungi, can be used in combination with a broad spectrum preservative or other
limited spectrum preservatives with complimentary and/or supplementary activity. A
mixture of broad spectrum preservatives can also be used. In some cases where a specific
group of microbial contaminants is problematic (such as Gram negatives), aminocarboxylate
chelators, such as those described hereinbefore, can be used alone or as potentiators
in conjunction with other preservatives. These chelators which include, e.g., ethylenediaminetetraacetic
acid (EDTA), hydroxyethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid,
and other aminocarboxylate chelators, and mixtures thereof, and their salts, and mixtures
thereof, can increase preservative effectiveness against Gram-negative bacteria, especially
Pseudomonas species.
[0114] Antimicrobial preservatives useful in the present invention include biocidal compounds,
i.e., substances that kill microorganisms, or biostatic compounds, i.e., substances
that inhibit and/or regulate the growth of microorganisms. Well known preservatives
such as short chain alkyl esters of p-hydroxybenzoic acid, commonly known as parabens;
N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl) urea, also known as 3,4,4'-trichlorocarbanilide
or triclocarban; 2,4,4'-trichloro-2'-hydroxy diphenyl ether, commonly known as triclosan
are useful preservative in the present invention.
[0115] Still other preferred preservatives are the water-soluble preservatives, i.e. those
that have a solubility in water of at least about 0.3 g per 100 ml of water, i.e.,
greater than about 0.3% at room temperature, preferably greater than about 0.5% at
room temperature.
[0116] The preservative in the present invention is included at an effective amount. The
term "effective amount" as herein defined means a level sufficient to prevent spoilage,
or prevent growth of inadvertently added microorganisms, for a specific period of
time. In other words, the preservative is not being used to kill microorganisms on
the surface onto which the composition is deposited in order to eliminate odors produced
by microorganisms. Instead, it is preferably being used to prevent spoilage of the
solution in order to increase the shelf-life of the composition. Preferred levels
of preservative are from about 0.0001% to about 0.5%, more preferably from about 0.0002%
to about 0.2%, most preferably from about 0.0003% to about 0.1%, by weight of the
usage composition.
[0117] The preservative can be any organic preservative material which will not cause damage
to fabric appearance, e.g., discoloration, coloration, bleaching. Preferred water-soluble
preservatives include organic sulfur compounds, halogenated compounds, cyclic organic
nitrogen compounds, low molecular weight aldehydes, quaternary ammonium compounds,
dehydroacetic acid, phenyl and phenolic compounds, and mixtures thereof. Non-limiting
examples of preferred water-soluble preservatives for use in the present invention
can be found in U.S. Patent 5,714,137, incorporated hereinbefore by reference, as
well as co-pending application PCT/US 98/12154 pages 29 to 36.
[0118] Preferred water-soluble preservatives for use in the present invention are organic
sulfur compounds. Some non-limiting examples of organic sulfur compounds suitable
for use in the present invention are:
(a) 3-Isothiazolone Compounds
[0119] A preferred preservative is an antimicrobial, organic preservative containing 3-isothiazolone
groups. This class of compounds is disclosed in U.S. Pat. No. 4,265,899, Lewis et
al., issued May 5, 1981, and incorporated herein by reference. A preferred preservative
is a water-soluble mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one,
more preferably a mixture of about 77% 5-chloro-2-methyl-4-isothiazolin-3-one and
about 23% 2-methyl-4-isothiazolin-3-one, a broad spectrum preservative available as
a 1.5% aqueous solution under the trade name Kathon
® CG by Rohm and Haas Company.
[0120] When Kathon
® is used as the preservative in the present invention it is present at a level of
from about 0.0001% to about 0.01%, preferably from about 0.0002% to about 0.005%,
more preferably from about 0.0003% to about 0.003%, most preferably from about 0.0004%
to about 0.002%, by weight of the composition.
[0121] Other isothiazolins include 1,2-benzisothiazolin-3-one, available under the trade
name Proxel
® products; and 2-methyl-4,5-trimethylene-4-isothiazolin-3-one, available under the
trade name Promexal
®. Both Proxel and Promexal are available from Zeneca. They have stability over a wide
pH range (i.e., 4-12). Neither contain active halogen and are not formaldehyde releasing
preservatives. Both Proxel and Promexal are effective against typical Gram negative
and positive bacteria, fungi and yeasts when used at a level from about 0.001% to
about 0.5%, preferably from about 0.005% to about 0.05%, and most preferably from
about 0.01% to about 0.02% by weight of the usage composition.
(b) Sodium Pyrithione
[0122] Another preferred organic sulfur preservative is sodium pyrithione, with water solubility
of about 50%. When sodium pyrithione is used as the preservative in the present invention
it is typically present at a level of from about 0.0001% to about 0.01%, preferably
from about 0.0002% to about 0.005%, more preferably from about 0.0003% to about 0.003%,
by weight of the usage composition.
[0123] Mixtures of the preferred organic sulfur compounds can also be used as the preservative
in the present invention.
6- Antimicrobial active
[0124] The composition may suitably use an optional solubilized, water-soluble antimicrobial
active, useful in providing protection against organisms that become attached to the
treated material. The free, uncomplexed antimicrobial, e.g., antibacterial, active
provides an optimum antibacterial performance.
[0125] Sanitization of fabrics can be achieved by the compositions of the present invention
containing, antimicrobial materials, e.g., antibacterial halogenated compounds, quaternary
compounds, and phenolic compounds.
[0126] Biguanides. Some of the more robust antimicrobial halogenated compounds which can function as
disinfectants/sanitizers as well as finish product preservatives (vide infra), and
are useful in the compositions of the present invention include 1,1'-hexamethylene
bis(5-(p-chlorophenyl)biguanide), commonly known as chlorhexidine, and its salts,
e.g., with hydrochloric, acetic and gluconic acids. The digluconate salt is highly
water-soluble, about 70% in water, and the diacetate salt has a solubility of about
1.8% in water. When chlorhexidine is used as a sanitizer in the present invention
it is typically present at a level of from about 0.001% to about 0.4%, preferably
from about 0.002% to about 0.3%, and more preferably from about 0.01% to about 0.1%,
by weight of the usage composition. In some cases, a level of from about 1% to about
2% may be needed for virucidal activity.
[0127] Other useful biguanide compounds include Cosmoci
® CQ
®, Vantocil
® IB, including poly (hexamethylene biguanide) hydrochloride. Other useful cationic
antimicrobial agents include the bis-biguanide alkanes. Usable water soluble salts
of the above are chlorides, bromides, sulfates, alkyl sulfonates such as methyl sulfonate
and ethyl sulfonate, phenylsulfonates such as p-methylphenyl sulfonates, nitrates,
acetates, gluconates, and the like.
[0128] As stated hereinbefore, the bis biguanide of choice is chlorhexidine and its salts,
e.g., digluconate, dihydrochloride, diacetate, and mixtures thereof.
[0129] Quaternary Compounds. A wide range of quaternary compounds can also be used as antimicrobial actives,
in conjunction with the preferred surfactants, for compositions of the present invention
that do not contain cyclodextrin. Non-limiting examples of useful quaternary compounds
include: (1) benzalkonium chlorides and/or substituted benzalkonium chlorides such
as commercially available Barquat
® (available from Lonza), Maquat
® (available from Mason), Variquat
® (available from Witco/Sherex), and Hyamine
® (available from Lonza); (2) dialkyl quaternary such as Bardac
® products of Lonza, (3) N-(3-chloroallyl) hexaminium chlorides such as Dowicide
® and Dowicil
® available from Dow; (4) benzethonium chloride such as Hyamine
® 1622 from Rohm & Haas; (5) methylbenzethonium chloride represented by Hyamine
® 10X supplied by Rohm & Haas, (6) cetylpyridinium chloride such as Cepacol chloride
available from of Merrell Labs. Typical concentrations for biocidal effectiveness
of these quaternary compounds range from about 0.001% to about 0.8%, preferably from
about 0.005% to about 0.3%, more preferably from about 0.01% to 0.2%, by weight of
the usage composition. The corresponding concentrations for the concentrated compositions
are from about 0.003% to about 2%, preferably from about 0.006% to about 1.2%, and
more preferably from about 0.1 % to about 0.8% by weight of the concentrated compositions.
[0130] Other preservatives which are conventional in the art, such as described in US 5,593,
670 incorporated herein by reference, may also be used herein.
7-Perfume
[0131] The present invention can contain a perfume. Suitable perfumes are disclosed in U.S.
Pat. 5,500,138, said patent being incorporated herein by reference.
[0132] As used herein, perfume includes fragrant substance or mixture of substances including
natural (i.e., obtained by extraction of flowers, herbs, leaves, roots, barks, wood,
blossoms or plants), artificial (i.e., a mixture of different nature oils or oil constituents)
and synthetic (i.e., synthetically produced) odoriferous substances. Such materials
are often accompanied by auxiliary materials, such as fixatives, extenders, stabilizers
and solvents. These auxiliaries are also included within the meaning of "perfume",
as used herein. Typically, perfumes are complex mixtures of a plurality of organic
compounds.
[0133] Examples of perfume ingredients useful in the perfumes of the present invention compositions
include, but are not limited to, hexyl cinnamic aldehyde; amyl cinnamic aldehyde;
amyl salicylate; hexyl salicylate; terpineol; 3,7-dimethyl-
cis-2,6-octadien-1-ol; 2,6-dimethyl-2-octanol; 2,6-dimethyl-7-octen-2-ol; 3,7-dimethyl-3-octanol;
3,7-dimethyl-
trans-2,6-octadien-1-ol; 3,7-dimethyl-6-octen-1-ol; 3,7-dimethyl-1-octanol; 2-methyl-3-(para-tert-butylphenyl)-propionaldehyde;
4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde; tricyclodecenyl propionate;
tricyclodecenyl acetate; anisaldehyde; 2-methyl-2-(para-iso-propylphenyl)-propionaldehyde;
ethyl-3-methyl-3-phenyl glycidate; 4-(para-hydroxyphenyl)-butan-2-one; 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one;
para-methoxyacetophenone; para-methoxy-alpha-phenylpropene; methyl-2-n-hexyl-3-oxo-cyclopentane
carboxylate; undecalactone gamma.
[0134] Additional examples of fragrance materials include, but are not limited to, orange
oil; lemon oil; grapefruit oil; bergamot oil; clove oil; dodecalactone gamma; methyl-2-(2-pentyl-3-oxo-cyclopentyl)
acetate; beta-naphthol methylether; methyl-beta-naphthylketone; coumarin; decylaldehyde;
benzaldehyde; 4-tert-butylcyclohexyl acetate; alpha,alpha-dimethylphenethyl acetate;
methylphenylcarbinyl acetate; Schiff's base of 4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde
and methyl anthranilate; cyclic ethyleneglycol diester of tridecandioic acid; 3,7-dimethyl-2,6-octadiene-1-nitrile;
ionone gamma methyl; ionone alpha; ionone beta; petitgrain; methyl cedrylone; 7-acetyl-1,2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethyl-naphthalene;
ionone methyl; methyl-1,6,10-trimethyl-2,5,9-cyclododecatrien-1-yl ketone; 7-acetyl-1,1,3,4,4,6-hexamethyl
tetralin; 4-acetyl-6-tert-butyl-1,1-dimethyl indane; benzophenone; 6-acetyl-1,1,2,3,3,5-hexamethyl
indane; 5-acetyl-3-isopropyl-1,1,2,6-tetramethyl indane; 1-dodecanal; 7-hydroxy-3,7-dimethyl
octanal; 10-undecen-1-al; iso-hexenyl cyclohexyl carboxaldehyde; formyl tricyclodecan;
cyclopentadecanolide; 16-hydroxy-9-hexadecenoic acid lactone; 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyrane;
ambroxane; dodecahydro-3a,6,6,9a-tetramethylnaphtho-[2,1b]furan; cedrol; 5-(2,2,3-trimethylcyclopent-3-enyl)-3-methylpentan-2-ol;
2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol; caryophyllene alcohol;
cedryl acetate; para-tert-butylcyclohexyl acetate; patchouli; olibanum resinoid; labdanum;
vetivert; copaiba balsam; fir balsam; and condensation products of: hydroxycitronellal
and methyl anthranilate; hydroxycitronellal and indol; phenyl acetaldehyde and indol;
4-(4-hydroxy-4-methyl pentyl)-3-cyclohexene-1-carboxaldehyde and methyl anthranilate.
More examples of perfume components are geraniol; geranyl acetate; linalool; linalyl
acetate; tetrahydrolinalool; citronellol; citronellyl acetate; dihydromyrcenol; dihydromyrcenyl
acetate; tetrahydromyrcenol; terpinyl acetate; nopol; nopyl acetate; 2-phenylethanol;
2-phenylethyl acetate; benzyl alcohol; benzyl acetate; benzyl salicylate; benzyl benzoate;
styrallyl acetate; dimethylbenzylcarbinol; trichloromethylphenylcarbinyl methylphenylcarbinyl
acetate; isononyl acetate; vetiveryl acetate; vetiverol; 2-methyl-3-(p-tert-butylphenyl)-propanal;
2-methyl-3-(p-isopropylphenyl)-propanal; 3-(p-tert-butylphenyl)-propanal; 4-(4-methyl-3-pentenyl)-3-cyclohexenecarbaldehyde;
4-acetoxy-3-pentyltetrahydropyran; methyl dihydrojasmonate; 2-n-heptylcyclopentanone;
3-methyl-2-pentyl-cyclopentanone; n-decanal; n-dodecanal; 9-decenol-1; phenoxyethyl
isobutyrate; phenylacetaldehyde dimethylacetal; phenylacetaldehyde diethylacetal;
geranonitrile; citronellonitrile; cedryl acetal; 3-isocamphylcyclohexanol; cedryl
methylether; isolongifolanone; aubepine nitrile; aubepine; heliotropine; eugenol;
vanillin; diphenyl oxide; hydroxycitronellal ionones; methyl ionones; isomethyl ionomes;
irones; cis-3-hexenol and esters thereof; indane musk fragrances; tetralin musk fragrances;
isochroman musk fragrances; macrocyclic ketones; macrolactone musk fragrances; ethylene
brassylate.
[0135] The perfumes useful in the present invention compositions are substantially free
of halogenated materials and nitromusks.
[0136] Suitable solvents, diluents or carriers for perfumes ingredients mentioned above
are for examples, ethanol, isopropanol, diethylene glycol, monoethyl ether, dipropylene
glycol, diethyl phthalate, triethyl citrate, etc. The amount of such solvents, diluents
or carriers incorporated in the perfumes is preferably kept to the minimum needed
to provide a homogeneous perfume solution.
[0137] Perfume can be present at a level of from 0% to 10%, preferably from 0.1% to 5%,
and more preferably from 0.2% to 3%, by weight of the finished composition. Fabric
softener compositions of the present invention provide improved fabric perfume deposition.
[0138] Perfume ingredients may also be suitably added as releasable fragrances, for example,
as pro-perfumes or pro-fragrances as described in U.S. 5,652,205 Hartman et al., issued
July 29, 1997, WO95/04809, WO96/02625, PCT US97/14610 filed 19 August 1997 and claiming
priority of 19 August 1996, EP-A-0,752,465, co-pending application EP 98870227.0,
EP 98870226.2, EP 99870026.4, and EP 99870025.6; all incorporated herein by reference.
8- Soil Release Agent
[0139] Soil Release agents are desirably used in compositions of the instant invention.
Any polymeric soil release agent known to those skilled in the art can optionally
be employed in the compositions of this invention. Polymeric soil release agents are
characterized by having both hydrophilic segments, to hydrophilize the surface of
hydrophobic fibers, such as polyester and nylon, and hydrophobic segments, to deposit
upon hydrophobic fibers and remain adhered thereto through completion of washing and
rinsing cycles and, thus, serve as an anchor for the hydrophilic segments. This can
enable stains occurring subsequent to treatment with the soil release agent to be
more easily cleaned in later washing procedures.
[0140] If utilized, soil release agents will generally comprise from about 0.01% to about
10.0%, by weight, of the detergent compositions herein, typically from about 0.1%
to about 5%, preferably from about 0.2% to about 3.0%.
[0141] The following, all included herein by reference, describe soil release polymers suitable
for use in the present invention. U.S. 3,959,230 Hays, issued May 25, 1976; U.S. 3,893,929
Basadur, issued July 8, 1975; U.S. 4,000,093, Nicol,
et al., issued December 28, 1976; U.S. Patent 4,702,857 Gosselink, issued October 27,
1987; U.S. 4,968,451, Scheibel
et al., issued November 6; U.S. 4,702,857, Gosselink, issued October 27, 1987; U.S. 4,711,730,
Gosselink
et al., issued December 8, 1987; U.S. 4,721,580, Gosselink, issued January 26, 1988; U.S.
4,877,896, Maldonado
et al., issued October 31, 1989; U.S. 4,956,447, Gosselink
et al., issued September 11, 1990; U.S. 5,415,807 Gosselink
et al., issued May 16, 1995; European Patent Application 0 219 048, published April 22, 1987
by Kud,
et al..
[0142] Further suitable soil release agents are described in U.S. 4,201,824, Violland
et al.; U.S. 4,240,918 Lagasse
et al.; U.S. 4,525,524 Tung
et al.; U.S. 4,579,681, Ruppert
et al.; U.S. 4,240,918; U.S. 4,787,989; U.S. 4,525,524; EP 279,134 A, 1988, to Rhone-Poulenc
Chemie; EP 457,205 A to BASF (1991); and DE 2,335,044 to Unilever N. V., 1974 all
incorporated herein by reference.
[0143] Commercially available soil release agents include the METOLOSE SM100, METOLOSE SM200
manufactured by Shin-etsu Kagaku Kogyo K.K., SOKALAN type of material, e.g., SOKALAN
HP-22, available from BASF (Germany), ZELCON 5126 (from Dupont) and MILEASE T (from
ICI).
9-pH
[0144] An optional requirement of the compositions according to the present invention is
that the pH as measured in the neat compositions at 20 °C, is greater than 3, preferably
between 3 and 12, more preferably between 4 and 8, most preferably is of 5. This range
is preferred for fabric safety. The pH of these compositions herein can be regulated
by the addition of a Bronsted acid.
10- Other Optional Ingredients
[0145] The present invention can include optional components conventionally used in textile
treatment compositions, for example, humectants like diethylene glycol, and/or salts
like lithium salts, colorants, bactericides, optical brighteners, opacifiers, anti-shrinkage
agents, germicides, fungicides, anti-oxidants, color protection agent like dye fixing
agent as described in EP 931133, enzymes, chelating agents, cyclodextrin as described
in WO 98/56888, metallic salts to absorb amine and sulfur-containing compounds and
selected from the group consisting of copper salts, zinc salts, and mixtures thereof,
water-soluble polyionic polymers, e.g., water-soluble cationic polymer like polyamines,
and water-soluble anionic polymers like polyacrylic acids, other antistatic agent,
insect and/or moth repelling agents, colorants and dyes, anti-clogging agent, and
the like; typical disclosure of which can be found in WO 98/56888. Still other suitable
optional ingredients are ingredients which provide shield protection against stain
like hydroxypropylcellulose as well as other cellulosic polymer like carboxymethylcellulose.
The compositions are preferably free of any material that would soil or stain fabric,
and are also substantially free of starch. Typically, there should be less than about
0.5%, by weight of the composition, preferably less than about 0.3%, more preferably
less than about 0.1%, by weight of the composition, of starch and/or modified starch.
Form of the composition
[0146] The composition of the invention may take a variety of physical form including liquid,
liquid-gel, paste-like, foam in either aqueous or non-aqueous form, powder like granular
and tablet forms. A preferred form of the composition is in a liquid form.
[0147] When in a liquid form, the composition is preferably dispensed by a dispensing means
such as a spray dispenser, aerosol dispenser, or refill thereof. Still another preferred
dispensing means is by incorporation of the composition of the invention in the ironing
tank per se, or via a cartridge preferably adapted for the iron.
Spray Dispenser
[0148] The present invention also relates to such compositions incorporated into a spray
dispenser to create an article of manufacture that can facilitate treatment of fabric
articles and/or surfaces with the compositions according to the invention at a level
that is effective. The spray dispenser comprises manually activated and non-manual
powered (operated) spray means and a container containing the treating composition.
Typical disclosure of such spray dispenser can be found in WO 96/04940 page 19 line
21 to page 22 line 27. Preferably, the spray dispenser is selected from spray dispenser
comprising battery operated pump, spray dispenser comprising a trigger spray device,
spray dispenser comprising a pressurized aerosol spray dispenser.
Method of use
[0149] It has been found that the use of the water-soluble lubricant provided a reduction
of the WRA compared to water. Accordingly, there is provided a method of increasing
the WRA of fabrics, which comprises the steps of contacting the fabrics with a water-soluble
lubricant as defined herein before, using a domestic process.
[0150] It has also been found that the use of the water-soluble lubricant or composition
of the invention provides surprisingly good benefit on the dewrinkling performance
upon wearing. This benefit is particularly achieved while spraying the compound or
composition from the iron. Accordingly, there is also provided a method of treating
fabrics, in particular to provide in wear wrinkle resistance on fabrics, which comprises
the steps of contacting the fabrics with a water-soluble lubricant or composition
according to the invention, as defined herein before, using a domestic process.
[0151] By "contacting", it is meant any steps that is suitable for providing a contact of
the composition with the fabric. This can include by soaking, washing, rinsing, and/or
spraying as well as by means of a dryer sheet onto which is adsorbed the composition.
Preferably, the contacting occurs after the laundering and optional drying of the
fabrics, e.g. by spraying, more preferably by spraying from the iron spray dispenser
and/or via the vaporisation holes from the iron sole. Accordingly, in this instance,
the composition of the present invention is used as an ironing aid. An effective amount
of the composition can be sprayed onto fabric, wherein said fabric should not be sprayed
to saturation. Still another preferred way of treating the fabrics is when the fabric
can be sprayed with an effective amount of the composition, allowed to dry and then
ironed, or sprayed and ironed immediately.
[0152] Accordingly, in a further aspect of the invention, the composition of the invention
can also be sprayed onto the fabrics by means of an iron spraying means, whereby the
composition is incorporated into the iron as is or via a cartridge, preferably adapted
for the iron. As for the method of spraying via the iron, the spraying means should
preferably be capable of providing droplets with a weight average diameter of from
about 40 to about 200 µm, preferably from about 70 to about 150 µm. Preferably, the
loading of moisture on fabrics made of natural and synthetic fibers is from about
5 to about 25%, more preferably from about 5 to about 10% by weight of the dried fabric.
[0153] By "wrinkle reducing composition", it is meant that the composition is tested on
100% cotton, woven Oxford pinpoint fabric according to the procedure given in W. Garner,
Textile Laboratory Manual Vol. 6, Ed. 3, Elsevier Inc., 1967, p. 105, so called "cylinder
test". The cylinder test consists in taking a 12X14 inch of treated cloth, rolling
it round a plastic tube, placing the roll in a 360 ml measuring cylinder(r= 0.67 inch,
l= 15.7 inch), withdrawing the tube, and pushing the fabric down to occupy a volume
of about 90 ml by means of a plastic tube which is an easy sliding fit for the cylinder.
This test is carried out on cloth conditioned for 24 hours at 21°C (70°F) and 65%
RH. The cloth is left 1 minute in the cylinder, opened immediately, inspected visually,
and then compared with a cloth only treated with water. The results obtained are compared
against fabrics which have only been treated with water. Wrinkle reducing compositions
are compositions which provide a better crease resistance versus water, i.e fabrics
that have been treated with a composition of the invention show less wrinkles compared
to fabrics which have only been treated with water.
[0154] In a still further aspect of the invention, the composition can be sprayed onto fabrics
by an in-home de-wrinkling chamber containing the fabric to be dewrinkled, thereby
providing ease of operation. Conventional personal as well as industrial de-wrinkling
apparatuses are suitable for use herein. Traditionally, these apparatuses act by a
steaming process which effects a relaxation of the fibers. Examples of home dewrinkling
chambers include shower stalls. The spraying of the composition or compounds onto
the fabrics can then occur within the chamber of the apparatus or before placing the
fabrics into the chamber. As for the manual method of spraying, the spraying means
should preferably be capable of providing droplets with a weight average diameter
of from about 8 to about 100 µm, preferably from about 10 to about 50 µm. Preferably,
the loading of moisture on fabrics made of natural and synthetic fibers is from about
5 to about 25%, more preferably from about 5 to about 10% by weight of the dried fabric.
Other conventional steps that can be carried out in the dewrinkling apparatus can
be applied such as heating which will provide the curing step and drying. Preferably,
for optimum dewrinkling benefit, the temperature profile inside the chamber ranges
from about 40°C to about 80°C, more preferably from about 50°C to about 70°C. The
preferred length of the drying cycle is from about 15 to about 60 minutes, more preferably
from about 20 to about 45 minutes.
[0155] The steaming step in the dewrinkling apparatus can also be eliminated if the composition
is maintained at a temperature range from about 22°C (about 72° F) to about 76°C (170°F)
before spraying.
[0156] The present invention encompasses the method of spraying a mist of an effective amount
of solution of the invention composition onto fabric and/or fabric articles. Preferably,
said fabric and/or fabric articles include, but are not limited to, clothes, curtains,
drapes, upholstered furniture, carpeting, bed linens, bath linens, tablecloths, sleeping
bags, tents, car interiors, etc.
[0157] The compositions herein are especially useful, when used to treat garments for extending
the time before another wash cycle is needed, and/or even reducing the time involved
in ironing. Such garments include uniforms and other garments which are normally treated
in an industrial process, which can be dewrinkled and the time between treatments
extended.
[0158] Also provided herein is an article of manufacture comprising a container and the
composition of the invention in association with a set of instructions to use the
composition in an amount effective to provide a solution to problems involving and/or
provision of a benefit related to those selected from reducing wrinkles; imparting
in-wear resistance to fabrics. It is important that the consumer be aware of these
additional benefits, since otherwise the consumer would not know that the composition
would solve these problems and/or provide these benefits.
[0159] As used herein, the phrase " in association with" means the set of instructions are
either directly printed on the container itself or presented in a separate manner
including, but not limited to, a brochure, print advertisement, electronic advertisement,
and/or verbal communication, so as to communicate the set of instructions to a consumer
of the article of manufacture. The set of instructions preferably comprises the instruction
to apply an effective amount of the composition, preferably by spraying, to provide
the indicated benefit, e.g. wrinkles reduction; imparting in-wear resistance to fabrics.
[0160] The invention is illustrated in the following non limiting examples, in which all
percentages are on a weight basis unless otherwise stated.
[0161] In the examples, the abbreviated component identifications have the following meanings:
Polymer 1: Isomalto oligosaccharide available from Showa Sangyo Co. under the trade
name IMO 900
Polymer 2: Polyvinylpyrrolidone available from BASF under the trade name Luviskol
K30
Polymer 3: Co-polymer of vinylpyrrolidone and vinylcaprolactame available from BASF
under the trade name Luvitec VPC
Polymer 4: Co-polymer of vinylpyrrolidone and vinylimidazolinium methachloride available
from BASF under the trade name Luviquat FC 905
Lubricant 1: Polyalkylene oxide polysiloxane commercially available under the tradename
of Silwet 7200 from OSI Chem./Witco
Lubricant 2: Polyalkylene oxide polysiloxane commercially available under the tradename
of Silwet 7657 from OSI Chem./Witco
Lubricant 3: Polyethoxylated (20 moles) sorbitan monolaurate commercially available
under the tradename of Radiasurf 7137 from FINA
Lubricant 4: Polyethoxylated (20 moles) sorbitan tristearate commercially available
under the tradename of Tween 65
Wetting agent 1: Polyalkylene oxide polysiloxane commercially available under the
tradename of Silwet 7600 from OSI Chem./Witco
Wetting agent 1: Polyalkylene oxide polysiloxane commercially available under the
tradename of Silwet L 77 from OSI Chem./Witco
Emulsifier 1: CAE 10 (coconut alcohol condensed with an average of 10 moles of ethylene
oxide)
| |
A |
B |
C |
D |
E |
F |
| Polymer #1 |
5% |
- |
- |
- |
- |
1% |
| Polymer #2 |
- |
1% |
- |
2% |
- |
- |
| Polymer #3 |
- |
- |
2% |
- |
- |
- |
| Polymer #4 |
- |
- |
- |
- |
0.5 % |
- |
| Lubricant #1 |
14% |
4% |
- |
- |
1.5% |
- |
| Lubricant #2 |
- |
- |
6% |
2% |
1.5% |
- |
| Lubricant #3 |
8 % |
2 % |
- |
- |
- |
5% |
| Lubricant #4 |
- |
- |
- |
3 % |
- |
- |
| Wetting agent 1 |
3 % |
0.5 |
- |
- |
0.2 % |
- |
| Wetting agent 2 |
- |
- |
0.5 % |
- |
- |
- |
| Dipropyleneglycol |
- |
0.3 |
- |
- |
- |
- |
| Emulsifier 1 |
0.6 % |
0.2 |
- |
- |
- |
- |
| Cyclodextrin |
- |
0.5 |
1 % |
- |
- |
- |
| Preservative |
3 ppm |
3 ppm |
- |
3 ppm |
- |
- |
| Perfume |
0.5 % |
0.1 |
0.1 % - |
|
- |
0.2% |
| Water |
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |