[0001] The present invention relates to cleaning compositions which are useful in dry-cleaning
of textiles and garments. More particularly the present invention relates to cleaning
compositions useful in dry-cleaning of textiles and garments in a non-commercial environment,
particularly in a domestic environment.
[0002] Various processes also for the individualized dry cleaning of garments in a domestic,
i.e., home setting, have also been proposed in the art. These include compositions,
apparatus and processes described in the following patent documents: U.S. 3,432,253;
U.S. 4,336,024; PCT Patent application WO 91/14038; U.S. 5,238,587; European Patent
application, EP 0429172; as well as in GB Patent 1598911.
[0003] While these prior art documents illustrate various alternative approaches to providing
techniques for dry cleaning of garments in a domestic environment, each of these techniques
is not without its shortcomings and limitations, which limitations are addressed and
overcome by the present applicants' invention.
[0004] It is therefore among the objects of the invention to provide an improved dry cleaning
formulation which may be used in a domestic or home dry cleaning operation. Such formulations
feature good efficacy yet simultaneously feature surprisingly low amounts of volatile
organic solvents; such new and improved formulations are particularly suited to be
used in a domestic dry cleaning operation as they feature low amounts of volatilizable
solvents.
[0005] It is yet another object of the invention to provide a home dry cleaning kit which
comprises a containment bag in conjunction with the new and improved formulations
which may be provided in a carrier device which are suitable for use in the practice
of a dry cleaning process in a domestic environment.
[0006] Also, the present invention includes among its objects improved processes for the
dry cleaning in a domestic environment particularly dry cleaning in a clothes dryer
which process includes the step of applying the new and improved formulations to the
soiled textile and/or garment and subsequently tumbling said treated textile and/or
garment which are contained in a sealable containment bag in a dryer apparatus.
[0007] According to the present invention, there is provided a dry cleaning composition according to
claim 1.
[0008] The liquid cleaning compositions according to the present invention which are suited
for use a home dry cleaning compositions include specific amounts of one or more nonionic
surfactants, of which are preferred water soluble nonionic alkoxylated alcohols and
alkoxylated phenols many of which are known to the art and available in nonionic surfactant
preparations. Such nonionic surfactants are known to the art, and include one or more
alkoxylated phenols, such as ethoxylated phenols, as well as ethoxylated and/or propoxylated
alcohols formed by condensation of either an alkyl phenol or an aliphatic alcohol
with sufficient ethylene oxide and/or propylene. Such ethoxylated alcohols, propoxylated
alchohols and ethoxylated phenols, are well known and may be formed by condensation
of an alkyl phenol, an aliphatic alcohol, or mixtures thereof, with sufficient ethylene
oxide to produce a compound having a polyoxyethylene. Preferably the number of ethylene
oxide units are present in an amount sufficient to insure solubility of the compound
in an aqueous composition of this invention or in any dilution thereof. More preferably
the ethoxylated alcohols and phenols are produced by condensation of about 4-16 (more
preferably 8-13), moles of ethylene oxide with 1 mole of the parent compound (i.e.
alkyl phenol or aliphatic alcohol). As known to those skilled in the art, the number
of moles of ethylene oxide which are condensed with one mole of parent compound depends
upon the molecular weight of the hydrophobic portion of the condensation product.
The parent compounds that may be combined with the ethylene oxide may include one
or more of the following:
(A) an alkyl phenol having about 1-15, and preferably 7-10, carbon atoms (saturated
or unsaturated) in the alkyl group [including phenol, methyl phenol (cresol), ethyl
phenol, hexyl phenol, octyl phenol, dicylphenol, nonylphenol, dodecylphenol, and the
like]; and
(B) a primary, tertiary, or secondary aliphatic alcohol having about 10-20, and preferably
11-15, carbon atoms, (including decyl alcohol, dodecyl alcohol, tridecyl alcohol,
hexadecyl alcohol, octadecyl alcohol, and the like).
[0009] Illustrative examples of these preferred water soluble nonionic ethoxylated phenols
and/or ethoxylated alcohols surfactants include one or more of those available under
the tradename of NEODOL , presently commercially available from the Shell Oil Company;
TERGITOL, presently commercially available from Union Carbide, and POLYTERGENT, presently
commercially available from the Olin Chemical Co., and IGEPAL presently commercially
available from the Rhône-Poulenc Co. Specific examples of such useful nonionic surfactants
include NEODOL 25-3, which is believed to be a linear C
12-C
15 linear primary alcohol condensed with 3 moles of ethylene oxide per mole of alcohol;
NEODOL 25-7, which is believed to be a linear C
12-C
15 linear primary alcohol condensed with 7 moles of ethylene oxide per mole of alcohol;
NEODOL 25-9, which is believed to be a linear C
12-C
15 linear primary alcohol condensed with 9 moles of ethylene oxide per mole of alcohol;
NEODOL 25-12, which is believed to be a linear C
12-C
15 linear primary alcohol condensed with 12 moles of ethylene oxide per mole of alcohol;
TERGITOL 15-S-7, believed to be a random secondary C
11-C
15 alcohol condensed with 7 moles of ethylene oxide per mole of alcohol; TERGITOL 15-S-9,
believed to be an alkoxypolyethylenoxyethanol which may be represented by the formula
C
11-15H
23-31(CH
2CH
2O)
xH having a degree of ethoxylation on a mole/mole average of 8.9, POLYTERGENT SL-22,
believed to be an alkoxylated linear aliphatic alcohol; POLYTERGENT SL-62, also believed
to be an alkoxylated linear aliphatic alcohol, as well as mixtures thereof. Exemplary
alkoxylated alkyl phenols include those presently commercially available under the
trade name IGEPAL, and which are described to be octyl and nonyl phenols. Specific
compositions include: IGEPAL CA-210 which is described as an ethoxylated octyl phenol
having an average of 1.5 ethoxy groups groups per molecule, and IGEPAL CA-420 which
is described as an ethoxylated octyl phenol having an average of 3 ethoxy groups groups
per molecule.
[0010] Further useful nonionic surfactant compositions which may be used include those presently
commerically available under the trade name SURFYNOL from Air Products & Chemicals,
Inc. (Allentown, PA) and which includes a variety acetylinic diols and acetylinic
diols, as well as others. Of this series of products, SURFYNOL 61 which is described
as being dimethyl hexanol, SURFYNOL 104 described to be tetramethyl decynediol, and
SURFYNOL 104A described to be tetramethyl decynediol dissolved in 2-ethylhexanol are
very advantageouly used.
[0011] Preferably, the nonionic surfactant constituent is an alkoxylated alcohol constituent
which even more preferably is one or more ethoxylated primary or secondary alcohols
surfactant compositions.
[0012] The nonionic surfactant compositions, and in particular the preferred nonionic alkoxylated
alcohol constituents are included in the home dry cleaning compositions in an amount
ranging from 0.01 to 0.15 weight percent, based on the total weight of the home dry
cleaning compositions composition.
[0013] The compositions according to the invention include an anionic surfactant constituent
which is selected from alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkylamide
sulfosuccinates, alkyl sulfosuccinamates, as well as salt forms thereof. Generally,
the alkyl or acyl radical in these various compounds comprise a carbon chain containing
12 to 20 carbon atoms. Many such anionic surfactants are known to the art and are
available from a variety of sources, including materials presently commercially available
under the tradename ALKASURF (Rhône-Poulenc Co., Princeton NJ) as well as those presently
commerically available under the tradename MONAWET (Mona Industries, Paterson NJ).
By way of illustrative example, these include the following: ALKASURF SS-MA-80, which
is described to be a sodium dihexyl sulfosuccinate, ALKASURF SS-NO, which is described
to be tetrasodium N-alkyl sulfosuccinamate, ALKASURF SS-O, which is described to be
sodium dioctyl sulfosuccinate, ALKASURF SS-OA-HE described to be a disodium oleyl
amido polyethyleneglycol-2 sulfosuccinate, ALKASURF SS-TA, disclosed as being sodium
N-octadecyl sulfosuccinamate, ALKASURF SS-L7DE, which is described as being a sodium
sulfosuccinate ester of lauric diethanolamide, ALKASURF SS-L9ME, which is described
as being a sodium sulfosuccinate ester of lauric monoethanolamide, ALKASURF SS-L-HE,
which is disclosed to be sodium diisobutyl sulfosuccinate, MONAWET MB-45, described
to be diisobutyl sodium sulfosuccinate, MONAWET MM-80, described to be dihexyl sodium
sulfosuccinate, MONAWET MO-65-150, which is described to be dioctyl sodium sulfosuccinate,
MONAWET MO-70 and MONAWET MO-80, both disclosed to be dioctyl sodium sulfosuccinate,
MONAWET MT, described to be ditridecyl sodium sulfosuccinate, MONAWET SNO-35, described
to be a tetrasodium salt ofN-(1,2,dicarboxyethyl)N-octadecyl sulfosuccinimate, as
well as MONAWET TD-30, described to be an ethoxylated fatty alcohol, half ester of
sulfosuccinate acid.
[0014] Generally, this anionic surfactant constituent is a single surfactant, or is a mixture
of such surfactants, and which is included in the home dry cleaning compositions in
an amount ranging from 0.01 to 2.5 weight percent, based on the total weight of the
home dry cleaning compositions composition. Most preferably, the anionic surfactant
constituent is employed in an amount ranging from 0.01 to about 2.0 weight percent,
and most preferably, from 0.01 to 1.0 weight percent.
[0015] Optionally but in some cases desirably the liquid home dry compositions according
to the invention include a fluorosurfactant constituent. Desirably the inclusion of
such a fluorosurfactant constituent improves the wetting of the garments or textiles
being treated so to improve the penetration of the liquid home dry compositions. Any
of a number of known fluorosurfactant compositions may be used, and desirably those
which are low foaming are preferred. Such useful fluorosurfactant compositions are
generally contain at least one fluoromoiety. Of course, mixtures of two or more florosurfacants
may be used.
[0016] Many useful fluorosurfactant constitutents as known to the art. By way of non-limiting
example these include fluorinated and perfluorinated alkyl carboxylates, fluorinated
and perfluorinated alkyl alkoxylates, fluorinated alkyl esters, perfluorinated alkyl
sulfonates, fluorinated and perfluorinated alkyl quarternary ammonium iodides, fluorinated
alkyl polyoxyethyelene alcohols, as well as salt forms thereof, especially ammonium,
alkali and alkaline earth metal salts.
[0017] An exemplary useful fluorosurfactant is that presently commercially available under
the tradename FLUORAD which includes among other materials various perfluoroalkyl
sulfonates, perfluoroalkyl carboxylates and well as salts thereof, and fluorinated
alkyl esters. One such material is FC 170C (3M Company, Minneapolis MN), which is
described as a being a fluorinated alkyl polyoxyethylene ethanol. This material
[0018] Further useful fluorosurfactants include those presently commercially available under
the tradename ZONYL (E.I. DuPont De Nemours & Co., Wilmington DE).
[0019] When present the fluorosurfactant constituent is present in an amount of up to about
1% by weight, but is desirably present in only minor amounts generally in an amount
of up to about 0.01% by weight and even less. Typically, the fluorosurfactant composition
has been found to be effective in dilutions of from 1 - 5000 ppm (parts per million)
based on the total weight of the liquid home dry compositions, and amount of from
about 100 - 2500 ppm have been found to be effective.
[0020] The compositions according to the invention include an organic solvent constituent
which is selected from water soluble alcohols and or glycol ethers. Exemplary water
soluble alcohols are desirably a lower alkyl monohydric alcohol including but not
limited to straight chained and branched C
1-6 alcohols which are preferred. Such alcohols, per se, are known to the art and are
widely commercially available. Any water soluble alcohol, particularly the preferred
C
1-6 alcohols may be used and incorporated into the home dry cleaning compositions being
taught herein and are desirably selected so to exhibit good aqueous solubility, efficacy
as a solvent for the removal of certain stains, and particularly desirably to be volatile
so that once applied to the soiled garment or textile, readily volatilize therefrom.
[0021] The organic solvent constituent of the home dry cleaning compositions taught herein
may also be a glycol ether solvent constituent. Preferred as the glycol ether solvent
constituent according to the present invention are water soluble glycol ethers according
to the general structure R
a-O-R
b-OH, wherein R
a is an alkoxy of 1 to 20 carbon atoms, or aryloxy of at least 6 carbon atoms, and
R
b is an ether condensate such as of a propylene glycol and/or ethylene glycol having
from one to ten glycol monomer units. Preferred are C
3-C
20 glycol ethers are those having one to five glycol monomer units. Further examples
of particularly preferred solvents include propylene glycol methyl ether, dipropylene
glycol methyl ether, tripropylene glycol methyl ether, propylene glycol isobutyl ether,
ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol butyl ether,
diethylene glycol phenyl ether, propylene glycol phenol ether, and mixtures thereof.
Exemplary glycol ethers which may be very advantageously employed as the solvent constituent
is one or more of the solvents of the group consisting of diethylene glycol methyl
ether, ethylene glycol n-butyl ether, diethylene glycol n-butyl ether, ethylene glycol
hexyl ether, diethylene glycol hexyl ether, and mixtures thereof. These materials
are presently commercially available under the tradename DOWANOL from the Dow Chemical
Co. (Midland MI); ARCOSOLV from the Atlantic Richfield Co., as well as CARBITOL or
CELLOSOLVE, both from Union Carbide Corp. (Danbury CT).
[0022] The organic solvent constituent may be one or more water soluble alcohols, one or
more glycol ether solvent constituents, or mixtures of one or more alcohols and one
or more glycol ethers. The organic solvent constituent is generally included in the
home dry cleaning compositions in an amount ranging from 1 to 5 weight percent, based
on the total weight of the home dry cleaning compositions being taught herein.
[0023] Where the organic solvent constituent includes one or more glycol ether solvent constituent
is preferably employed in an amount sufficient to sufficiently solubilize the home
dry cleaning compositions composition so that it is not overly viscous or gellatious
in nature, but rather, exhibits a flow viscosity similar to lower alkyl alcohols or
water. Generally the likelihood of forming a composition which has such a viscous
or gellatious is minor due to the fact that a substantial proportion of the composition
is water, however such a likelihood is possible and is desirably to be avoided, as
lower viscosity characteristics are particularly beneficial when the home dry cleaning
compositions composition is provided in a package or dispenser which includes a dispensing
pump or nozzle. Also, lower viscosity characteristics facilitate the absorption of
the home dry cleaning composition amongst the fibers of a textile or garment. The
desired low viscosity characteristic may be achieved in part by the careful selection
ofone or more glycol ether solvents with particular attention to their solubility
characteristics in water, as well as their molecular weights. For example, a formulation
within the present invention's scope may have it viscosity lowered by the inclusion
of a greater amount of a lower molecular weight glycol ether solvent. At the same
time, care should be taken in the selection of the glycol ether solvents so ensure
that good stain solubilization properties, including those normally associated with
higher molecular weight glycol ethers by desirably ensuring that they are included
in the home dry cleaning compositions as well. Thus, with a view to these considerations
the selection of a good glycol ether solvent constituent may be made experimental
evaluation techniques familiar to those skilled in the art.
[0024] As is noted above, the compositions according to the invention are aqueous in nature,
as water forms the major constituent. The water, it is preferably substantially free
of any undesirable impurities such as organics or inorganics, especially minerals
salts which are present in hard water which may detract from the operation of the
one or more of the essential constituents according to the invention, as well as any
other optional components which may be included. Water is added to in sufficient amounts
so to provide 100% by weight of the cleaning composition. Desirably, the water forms
at least about 90% by weight, and more desirably at least about 92% by weight of the
total weight of the home dry cleaning compositions being taught herein.
[0025] As has been denoted above, the home dry cleaning compositions according to the invention
may comprise one or more of the following optional components, the total weight of
such optional constituents not exceeding about 2% by weight of the total weight of
the composition, more preferably not exceeding about 1% by weight and is most preferably
less than about 1% by weight based on the total weight of the composition. Such optional
constituents may be one or more of the following: coloring agents, fragrances (whether
natural or synthetically produced), fragrance adjuvants and/or fragrance solubilizers,
pH adjusting agents such as acids or bases and especially pH buffers and preservatives.
By way of example but not by way of limitation, commerically available compositions
useful as preservatives for the home dry cleaning compositions being taught herein
include those marketed under the tradenames KATHON (Rohm & Haas Co., Philadelphia
PA), DOWICIL (Dow Chemical Co., Midland MI), BUSAN (Buckman Laboratories, Memphis
TN) and DANTOGARD (Lonza Chemical Co., Fairlawn NJ).
[0026] The present inventive compositions have surprisingly been found by the inventors
to be excellent cleaners to perform well as a cleaning composition for use in a domestic
dry cleaning process as is to be described in more detail below. This is particularly
surprising as water is found to be a major constituent of the composition, and that
only minor amount of surfactants and other solvents are present, yet good dry cleaning
effects have been observed. The present inventive compositions have also been found
by the inventors to leave little, but generally no residues or residual marks on treated
garments; residues or rings which have been known to the art and are typically attributed
to the surfactants contained in such prior art compositions. The present inventive
compositions have also been found to be good general cleaning compositions on a wide
variety of textiles, such as wool, cotton, synthetic fibers such as rayon, and silk
which is particularly difficult to dry clean.
[0027] The present inventive compositions may be simply produced as by mixing measured amounts
of individual constituents to form a homogenous mixture therefrom. This may be done
by well known techniques, and is desirably done in a simple paddle mixer, stirrer
or other low shear liquid mixing apparatus so to avoid undesired foaming of the compositions.
[0028] In accordance with one aspect of the process according to the invention, a soiled
garment is treated by applying an effective amount of the cleaning composition directly
to the surface of the garment. This can be done in one or more of the following ways
and such an application can take place in a number of forms and using a number of
devices. For example, in accordance with one embodiment of the invention, the cleaning
composition is provided to the consumer in a conventional dispenser such as a spray
bottle, squeeze bottle, aerosol, or other dispensing container. In such a way, application
of the cleaning composition is possible by the requisite pumping of the spray bottle,
alternately squeezing and dispensing the cleaning composition from the squeeze bottle
or in a further alternative by spraying from the pressurized aerosol container the
cleaning composition. After an effective amount of the cleaning composition has been
applied to the surface of one or more garments to be treated, the treated garment
is then introduced into the interior of a containment bag. The garment may be introduced
singly or can be in conjunction with other articles to which the cleaning composition
has been applied in a similar fashion, or in conjunction with other articles which
have not been contacted with the cleaning composition according to the invention.
Subsequently, the containment bag is sealed so to retain the one or more articles
wherein, and then the sealed contaiment bag with its contents are introduced into
the interior of a domestic dryer apparatus. Various constructions for the sealable
containment bag are described in more particular detail below.
[0029] Optionally, localized stains may be cleaned separately by the consumer using a spot
cleaning composition prior to the application of the liquid cleaning compositions
being taught herein. Such spot cleaning compositions include those known to the art,
and include for example one or more of the compositions referenced in the prior art
patents denoted above. A spot cleaning composition may be advantageously employed
to clean hard to remove as well as localized stains on the garment to be treated.
[0030] A particularly advantageous spot cleaning composition is one comprising the following
constituents: 0.1 - 10%wt. nonionic alkoxylated alcohol; 0.1 - 10%wt. nonionic alkoxylated
mono- and di-alkanol amide; 0.1- 3.5%wt. anionic surfactant especially one or more
selected from alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates,
alkyl sulfosuccinamates, as well as salt forms thereof; 0 - 1%wt. flurosurfactant;
0.01- 7%wt. alcohol solvent especially water miscible alcohols; 0.01 - 30%wt. glycol
ether solvent, especially water miscible glycol ethers; to 100%wt.water. Optionally,
this spot cleaning compositions may include up to about 2%wt. of one or more conventional
additives such as acids, bases, pH buffers, coloring agents, fragrances and the like.
Desirably, these spot cleaning compositions comprise at least about 70%wt. water.
This advantageous spot cleaning composition is very effective in the removal of localized
stains, leaves no discerible deposits or residues when used prior to an in conjuction
with the cleaning composition being taught herein, and contain a relatively minor
proportion of volatile organic compounds as these spot cleaning compositions desirably
contain at least about 70%wt. water.
[0031] Typically in accordance with the processes according to the invention, dryer apparatus
including those having a rotating drum which rotates about a horizontal axis, but
in some cases includes a drum which rotates about a vertical or other non-horizontal
axis and such may be also used. Generally, those having a drum which rotates about
an approximately horizontal axis are preferred. Such horizontally rotating drum ensures
a good tumbling effect to the articles within the sealed containment bag and aids
in the effective and uniform distribution of the cleaning composition amongst the
surfaces of the garments being treated.
[0032] Subsequent to its introduction of the sealed containment bag into the dryer apparatus,
the dryer apparatus is actuated and optionally, heated for sufficient time to allow
the tumbling of the treated garment and to distribute the cleaning composition onto
the garment or textiles being treated. As an alternative process and dependent upon
the available modes of operation of the dryer apparatus, after the introduction of
the sealed containment bag containing the garments to be treated, the rotating drum
is actuated to operate for several minutes without the application of heat to the
rotating drum which permits tumbling of the containment bag and the distribution of
the cleaning compositions of the instant invention more uniformly to the garments
within the sealed containment bag prior to the appreciable volatilization of the cleaning
compositions. Subsequent to this process step, the dryer apparatus may then be actuated
to apply heat to the rotating drum and its contents so to volatilize at least a major
portion of the cleaning composition. Subsequently, the treated garments may be removed
and are optionally subjected to further treatment steps such as ironing, pressing
and the like. The treated garments or textiles are typically damp to the touch following
this treatment step.
[0033] If desired, the thus treated garments and textiles may be treated with a fabric treatment
composition such as a sprayable fabric softening composition, or an antistatic composition.
[0034] The liquid cleaning compositions being taught herein are advantageously used in a
process for home dry cleaning wherein one or more garments or textiles are provided
into the interior of a containment bag with a quantity of the compositions, the bag
is then closed and inserted into a clothes dryer and the containment bag and its contents
are tumbled to ensure the distribution of the liquid cleaning composition to the garments
or textiles. The dryer dry cleaning and freshening system shown in Fig. 1 includes
a containment bag having an opening conveniently placed at one side thereof. With
reference to containment bag it may be fabricated of a material which is vapor impermeable
material such as a plastic or polymer material such as from a sheet or film which
is sewn, as well as certain non-woven textiles and formed materials, such as TYVEK
(DuPont Corp., Wilmington DE) and the like. Such a containment bag is typically sealed
or otherwise fastened on one or more edges in order to form said containment bag,
and any conventional means for its production may be used. Such sealing or fastening
means include for example sewing, welding, melt-bonding as well as other conventionally
known means. It is further to be understood that while a vapor impermeable material
may be used in the construction of the containment bag, it is to be understood that
such a bag itself need not be totally hermetically sealable itself and that the escape
of vapors or gases from within such a containment bag to its exterior, such as the
interior space of a clothes dryer is to be foreseen. Such an escape of vapors may
occur at seams of said containment bag, particularly where sewn seams are present,
as well as from the sealable opening. Alternately, the containment bag may be fabricated
of a material which is vapor permeable, such as a woven or non-woven textile material,
which may be made of naturally occurring or synthetically produced fibers, as well
as blends of two or more different materials. Both the vapor permeable materials and
the non-vapor permeable materials may be a single layer material, or may be of a multilayer
construction such as two or more layers of differing materials layered in register.
Examples of such include a first layer of a non-woven material which is used in the
innermost layers of the containment bag, which is in turn layered with a non-woven
material such as a polymer film layer which desirably provides a vapor impermeable
barrier layer to the containment bag. A second example of multilayer containment bag
construction includes a first innermost layer which is a fibrous material, such as
a non-woven material and a second layer in register therewith of a non-woven vapor
impermeable synthetic paper-like material such as TYVEK material which is used to
form the exterior of the containment bag. Such a construction provides the advantage
of providing a vapor impermeable containment bag, which has a durable exterior layer
which in turn increases the operating life of such a containment bag. Further, the
exterior material made of TYVEK or a similar material is readily printable using known
art techniques which permits the printing of a legend, logo or instructions for use
on this exterior surface of the containment bag. A third preferred material of construction
useful in the fabrication of a containment bag is a two or three layered construction,
wherein the first and innermost layer of the containment bag is of a non-woven, fibrous
material such as of a synthetically produced fiber, which in turn in bonded to a second
spun bonded polymeric textile material, which imparts strength to such a containment
bag construction. Optionally, but desirably a third layer of a non-woven, fibrous
material is bonded to the remaining side of the spun bonded polymeric textile material
and thus forms the exterior of the containment bag. The fibrous material used in the
formation of this third layer may be of the same synthetically produced fiber of the
first, innermost layer or it may be of a different fiber.
[0035] A further and most preferred material of construction for the fabrication of the
containment bag is a vapor impermeable or poorly vapor permeable bilayered material
which has on its first layer a polymeric film, which is bonded to a second layer of
a polymeric spun bonded nonwoven textile material. Both the polymeric film and the
polymeric spun bonded nonwoven textile material may be produced from a variety of
known art polymers and copolymers including for example nylons, polyalkylene terephthalates,
rayon, as well as polyalkylenes especially polyethylene, polypropylene and polybutylene
being of particular advantage due to their low cost and ready fabrication into both
vapor impermeable films as wall as nonwoven textile materials. The bonding between
these layers may be accomplished by virtually any known means, including for example
heat bonding, resin bonding which may require the use of a bonding material or film
intermediate to the first film layer and second film layers, as well as ultrasonic
bonding methods which provide effective binding between these two materials and which
may be practiced to produce an attractive dimpled appearance on the final material.
In accordance with this most preferred embodiment, the containment bag is constructed
such that the first film layer is forms the interior of the containment bag and thereby,
and the second film layer forms the exterior of the containment bag. A first advantage
of this most preferred containment bag construction is that the interior film layer
of the bag is both vapor impermeable and is nonabsorbent of the liquid cleaning composition
and thus the maximum cleaning efficacy of these compositions is available to the clothes
or other textiles being treated in the process according to the invention. A second
advantage of the preferred construction is the inventors' observation that such a
containment bag billows sufficiently during the tumbling and heating it encounters
in the dryer apparatus, yet permits the escape of vapors produced or entrapped within
the containment bag to escape at an acceptable rate. A third advantage enjoyed by
the preferred construction is the durability of such a containment bag as the nonwoven
film layer which forms the exterior of the bag is resistant to tearing, and at the
same time the soft tactile characteristics of this layer make the bag especially attractive
from the standpoint of the consumer.
[0036] Other advantageous materials of construction for the fabrication of containment bags
I which are alternative especially preferred embodiments having a vapor impermeable
or poorly vapor permeable bilayered material which has on its first layer a polymeric
film, which is bonded to a second layer of a textile material include for example:
a first vapor impermeable layer of a copolymer film for a film formed from a blend
of polymers including for example: polyethylene terephthalate - polybutylene terephthalate;
polyethylene terephtalate - rayon which are in turn bonded to second layer of a polymeric
nonwoven textile material which may be for example: rayon, and spun bonded or melt
blown polyethylene or polypropylene textile materials. Such materials of construction
useful for the fabrication of containment bags 1 which may be produced from these
immediately above recited include: a first layer of a polyalkylene film, such as polyethylene
or polypropylene bonded to a second layer of a textile material based on a blend of
rayon and polyethylene terephthalte; and, a first layer of a polyalkylene terephalate
film, bonded to a second layer of a rayon textile material.
[0037] It is to be understood that in any of the constructions recited which include one
or more polymeric materials, that minor amounts of conventional additives may be included
in conventional amounts including but not limited to: colorants, heat stabilizers,
ultraviolet stabilizers and filler materials. Such are, per se, known to the art.
[0038] Both the first layers and the second layers may be of the same or different thicknesses,
and it is required only that the containment bag formed from these materials be flexible.
Most desirably however, the thicknesses of both the first and second layer are less
than about 20 mils, more desirably the thickness of the first, preferably vapor impermeable
layer is 5 mils and less, especially 3 mils and less, while the thickness of the second
layer and any further layer is about 5 mils and less.
[0039] The dimensions of the containment bag and its internal volume may vary considerably.
Desirably however, the containment bag is sufficiently large to contain at least one
garment or textile to be treated, but preferably 2 - 3 such garments, as well as the
absorber means being taught herein, while at the same time not be overly large and
thus be inconvenient for use in a domestic dryer apparatus. Advantageously the containment
bag has a volume of about 75 litres or less, with sizes of about 50 liters, and about
30 liters being preferred.
[0040] The opening of the containment bag is conveniently located at an edge of the containment
bag, but it may be located elsewhere.. The opening may be a simple slit or discontinuity
in the material of the bag's construction or it may take a more complex form such
as further including a foldable flap to close the bag, or may also use fastening means.
Suitable fastening means may be any useful fastening means known to the art including,
but not limited to one or more of the following: zippers, hook-and-loop type fasteners
(VELCRO®), buttons, clips, pins, snaps, adhesive strips, as well as resealable plastic
sealing elements such as two strips, one on each margin of the opening when pressed
together interlock to form a flexible seal. Such resealable plastic sealing elements
are known to the art dealing with plastic bags and pouches, and are sometime referred
to as ZIP-LOCK® type closures. Suitable fastening means also includes the use of a
simple drawstring to pull the opening shut, the use of a single deformable wire-type
"twist tie" to close the opening, as well as the use of one or more fastening means
in conjunction with a flap. Further conventionally known fastening means although
not elucidated here may also be used. In accordance with the convenient placement
of the opening at or near an edge of the containment bag, the fastening means is placed
at or about the edge of the bag as illustrated on Fig. 1. It is only required that
the selected fastening means be affixable onto the materials of construction used
to fabricate the containment bag, and that it form a relatively secure closure. Desirably,
the containment bag is closeable to provide a liquid seal to minimize the leakage
of any liquid cleaning composition out of said bag and into the dryer, which in turn
ensures that maximum cleaning effect is imparted to garments or other textile materials
being treated
[0041] In a containment bag construction, the use of a fibrous material to form the innermost
surface of the containment bag may be desired as such a fibrous material is suited
to entrap and entrain particles which may be released from a garment or textile being
cleaned and/or absorbing of the cleaning composition being provided herein. Such a
containment bag may be desired as they may be amenable to laundering by the consumer.
Following such a laundering operation, the entrained/entrapped particulates, soils,
as well as any residual cleaning composition may be removed from the containment bag
and as such, the bag may be reused in a further dry cleaning operation.
[0042] One alternative embodiment of the process according to the instant invention, the
cleaning compositions are used in conjunction with a dispensing container, or other
container, which contains the cleaning composition as well as an absorbent sheet.
Such absorbent sheets may be produced from any fibrous or cellular flexible material
which exhibits sufficient thermal stability for use in a clothes dryer. For example,
such sheets may be non-woven materials such as those which have bonded fibers in a
web accorded fiber structure and/or those which comprise fibrous mats in which the
fibers are distributed in a random array. Such a fibrous can be naturally produced
fibers including wool, silk, cotton, linen, hemp, sisal, ramie or may be synthetically
produced such as synthetically spun fibers of polymers. Examples of such synthetic
fibers include rayon, cellulose, polyvinyl derivatives, polyolefins, polyesters, as
well as polyamides. Of course, mixtures of two or more different fibers may be used
in the production of such non-woven materials. Preferably such sheets are sufficiently
strong such that they will resist tearing or separation when used in a clothes dryer
as described in the processes taught herein. These sheets, when used, may be of any
dimension but are preferably sheets having an area of at least one square centimeter
and greater. Sheets having larger areas, i.e., those having areas of at least 50 square
centimeters and greater are preferred from the view point of ease of use and handling.
Such larger sheets are generally preferred as subsequent to the home dry cleaning
processes being taught herein. They may be readily separated from the treated garment
and easily discarded. From this perspective then it is clear that an overly large
sheet such that which would resist the tumbling operation of the garments being treated
and/or would tend to clump or bundle during the tumbling operation of the clothes
dryer are to be desirably avoided. As a function of the sheet is to act as an absorbent
substrate for the cleaning composition and/or to act as a transport vehicle wherein
cleaning composition absorbed upon the surface of the sheet may tumble and ultimately
recontact a different region of the garment or textile material to be treated. In
view of the foregoing then it is preferable that an intermediate size sheet and/or
a plurality of intermediate sheets, preferably those having an area of at least about
50 square centimeters are to be used.
[0043] In accordance with a further aspect of the invention, there is provided a system
optionally in kit form which includes a containment bag as described above, a quantity
the liquid cleaning composition as taught herein, and a dispenser means. Such a dispenser
means may be a ball-shaped dispenser which may be separated into hemispheres and which
includes in one of the hemispheres a vessel for the containment of the cleaning composition
taught herein in a measured amount. The vessel also includes a fluid communication
means such as one or more perforations, preferably small perforations and/or a semi-permeable
wall or sealing cap which permits for the flow of the cleaning composition from the
interior of the vessel to the exterior of the dispenser such that it may be contacted
with a garment or textile. The advantage of such a dispenser is that it may be produced
as both a single use dispenser and disposed after a single dry cleaning operation
or it may be produced as a refillable and multi-use dispenser wherein the consumer
may refill the dispenser between dry cleaning operations. The dispenser may also be
produced as a refillable dispenser.
[0044] In yet a further embodiment of the invention there is provided a system, optionally
in kit form which includes a containment bag as described above, a quantity the liquid
cleaning composition as taught herein, and a dispensing container. The dispensing
container may take a variety of forms, including a variety of known devices including
resealable bottles with or without dispensing elements such as manually pumpable dispensers,
bottles or flasks supplied with flow directing nozzles, as well as being supplied
with recloseable caps. Aerosol type dispensing containers may also be used. The dispensing
containers may also be of known single opening types, including sealed pouches or
packages wherein the package's integrity is destroyed once it is opened and the complete
contents are expected to be used subsequent to opening. Such include, for example
sealed pouches formed of single layer or multilayer constructions, particularly constructions
which utilize one or more polymeric films, as well as single opening ampoules, flasks
or vials which once opened are not designed to be readily recloseable. Single use
dispensing containers are advantageously used as they permit for the packaging of
controlled amounts of the cleaning compositions being taught herein which are subsequently
to be used by the consumer.
[0045] In accordance with a further aspect of the invention, there is provided a system
optionally in kit form which includes a containment bag as described above, a quantity
the liquid cleaning composition as taught herein, and a dispenser means.
[0046] An exemplary dispenser means is one which is formed of a porous material which is
suited to be impregnated with the liquid cleaning composition according to the invention.
In one aspect according to this embodiment, the porous dispenser may be one or more
spherical or other generally ball-shaped dispensers formed of a porous material which
is adapted for the retention of the cleaning composition within, yet when subjected
to sudden motion and agitation such as is expected in a drying apparatus, release
their impregnated cleaning composition. Of course, other configurations such as disks,
cubes, or other geometries are also useful and may be produced, however a spherical
geometry is preferred as being least likely to be undesirably snagged or trapped by
tumbling garments or textiles during the cleaning process where it is present within
the containment bag which assures the likelihood that a more even delivery of the
cleaning composition to the garments and textiles occurs. Such a dispenser being of
a porous nature permits for the flow of the cleaning composition from its interior
to the exterior of the dispenser, i.e., its surface such that it may deliver the cleaning
composition to a garment or textile by physical contact therewith. Materials which
may be used for the production of such a porous dispenser include foamed polymeric
materials which are resilient and flexible, as well as certain porous but less resilient
constructions formed from polymeric materials, such as may be formed by sintering
polymeric material. Useful polymers for such constructions may be based on virtually
any polymer which may be formed into such a porous dispenser means, of which polyolefins,
and polyamides, especially polyalkylenes including polyethylene, polybutylene and
polypropylene are advantageously used. Porous dispenser means may be produced by sintering
a quantity of comminuted polymer particles, such as in the forms of pellets, powders,
prills or the like under appropriate conditions to agglomerate the polymer particles
into a formed article which nonetheless retains a porous nature. An especially useful
polymer for this purpose is a polyolefin such a high density polyethylene which is
readily commercially available at a reasonable cost, and which is readily sinterable
to form such a porous dispenser. It is to be understood however, that other polymers
may be used.
[0047] The advantage of such porous dispenser means are that they may be produced as both
a single use dispenser and disposed after a single dry cleaning operation or it may
be produced as a refillable and multi-use dispenser wherein the consumer may refill
the dispenser between dry cleaning operations by reimpregnating the porous dispenser
with the cleaning composition such as by immersing the dispenser in a volume of said
cleaning composition. Such systems which include a containment bag as described above,
a quantity the liquid cleaning composition as taught herein, and porous dispenser
means.
[0048] In accordance with a yet further aspect of the invention, there is provided a system
optionally in kit form which includes a containment bag having an absorbent interior
surface as is described above, a quantity the liquid cleaning composition as taught
herein. In accordance with such a system, the liquid cleaning composition is provided
to the absorbent interior of the containment bag and the containment bag is further
provided with one or more textiles or garments to be treated in accordance with the
process being taught herein. The absorbent interior which is advantageously a fibrous
or fleecy material acts both to distribute the liquid cleaning composition to the
garments and the to trap or entrain loosened soils from the treated garments.
[0049] As used throughout this specification and in the claims, the use of the terms "garments"
and "textiles" are used to describe for example finished articles such as pants, shirts,
blouses, scarves, other articles of clothing, apparel, coats, and the like. In the
case of the former term, while in the case of the latter term, textiles which are
produced but have not been as of yet produced into either pieced goods or finished
articles such as articles of clothing or apparel is intended to be meant by the latter
term. In either case, as the present invention is equally applicable and useful without
distinction or regard for both textiles and/or garments, they are to be understood
as to interchangeable terms with respect to the cleaning operations and cleaning compositions
according to the instant invention.
[0050] What is to be understood by the term as "dryer" or "dryer apparatus" is a rotary
dryer which generally is typical of a domestic rotary dryer. The only requirement
is that the drum be configured so as to retain garments and/or textiles therein, to
be rotatable, and that the interior of the drum may be heated to at least the temperature
at which the lowest boiling point constituent volatilizes. Domestic clothes dryers,
as well as commercial clothes dryers, particularly of the rotary type and most particularly
those which rotate about a non-vertical axis are to be clearly understood as encompassed
within the scope of the instant invention.
[0051] As used throughout this specification and claims, references to "parts by weight"
and "weight percent" and "%wt." are considered to be interchangeable and to represent
the weight percent of a particular constituent with reference to a total composition
within which it is included, where such total composition is considered to have 100
parts by weight. In accordance with the immediately preceeding description, all of
the constituents of each of the formulations described in the examples below are recited
in parts by weight and are based on 100 parts by weight of a particular formulation,
unless specified to be otherwise.
Examples:
[0052] To demonstrate the compositions according to the invention, various formulations
were prepared having the constituents which are indicated on Table 1 below wherein
the amounts given are the weight percent of each respective constituent.
[0053] Preparation of the formulations were performed in a routine manner, which was generally
in accordance with the following protocol. To a large glass beaker placed on a magnetic
stirrer apparatus was added less than the total amount, or the total amount of deionized
water. The temperature of the water, as well as that of the remaining constituents
was approximately room temperature (≅68°F, ≅20°C) The stirrer apparatus was activated,
and to the water was added measured amounts of each of the constituents. While order
of addition of the constituents is not believed to be important, generally the surfactants
are preferably added first. After the addition of the final constituent, the contents
of the beaker were allowed to stir for a period of 5 to 15 minutes to ensure homogeneous
mixing and the production of a uniform formulation. Each of the formulations was observed
to be shelf stable for period of weeks and months.

[0054] The specific identities of the constituents indicated on Table 1 above are listed
in Table 2, below.
Table 2
| PolyTergent SL-62 |
alkoxylated linear aliphatic alcohol [100%wt. actives] |
| PolyTergent SL-22 |
alkoxylated linear aliphatic alcohol [100%wt. actives] |
| Surfynol 104A |
nonionic surfactant [50%wt. actives] |
| Surfynol 61 |
nonionic surfactant [100%wt. actives] |
| Zonyl FS300 |
fluorosurfactant [50 - 100%wt. actives] |
| Monawet SNO-35 |
a tetrasodium salt of N-(1,2,dicarboxyethyl)N-(octadecyl sulfosuccinamate [35%wt.
actives] |
| Kathon CG/ICP, Kathon CG/ICP |
proprietary preservative composition |
| Busan 1504 |
proprietary preservative composition |
| Dowicil 75 |
proprietary preservative composition |
| Dantogard Plus |
proprietary preservative composition |
| fragrance |
proprietary fragrance composition |
| ethanol |
ethanol [100%wt. actives] |
| deionized water |
deionized water |
[0055] Utilizing the example formulations described in detail on Table 1, cleaning tests
were performed in order to evaluate their efficacy.
Cleaning Example 1
[0056] An evaluation of the properties of the formulation according to Example 6 was performed
in accordance with the following general protocol.
[0057] A clean off-white 100% silk blouse as stained in with 0.003 grams of a lipstick composition.
The stain was permitted to set for 15 minutes so to simulate an actual consumer staining
condition. Subsequently, a clean disposable paper towel was laid on a hard nonabsorbent
surface and the stain was laid facing the paper towel. A quantity of a spot cleaning
composition according to the particularly advantageous spot cleaning composition described
above was applied to the silk fabric surface using an absorbent tipped dispenser in
a brush stroking fashion to impart linear strokes. In such a fashion, the major portion
of the spot cleaning composition was supplied to the locus of the stain and lesser
amounts of the spot cleaner were supplied to the edges beyond the stain. In such a
manner, a "feathered" application of the spot cleaning composition was provided. It
is to be noted that a circular or swirling application pattern was not applied to
the blouse in order to minimize the likelihood of deforming the textile. The spot
cleaning composition was applied in such a manner until a substantial portion of the
lipstick stain was loosened and transferred to the paper towel, and the silk blouse
inspected. A minor amount of the lipstick was observed to still be present at the
location of the stain.
[0058] Immediately subsequent, a quantity of the formulation according to Example 6 was
applied to evenly wet the area of the lipstick stain and the thus treated garment
was supplied to the interior of a containment bag formed of a vapor impermeable material.
The bag was sealed, and inserted into the interior of a horizontally rotating domestic
dryer apparatus. The said apparatus was activated to operate on a "low" cycle for
30 minutes, and the containment bag and its contents were removed. The silk blouse
which had an overall moist appearance was then hung on a hanger and permitted to dry.
[0059] Inspection of the location of the treated stain revealed no discernible stain or
residue.
[0060] The thus treated silk blouse could be lightly ironed subsequent to cleaning in order
to remove any wrinkles from the garment.
[0061] It is to be understood that other spot cleaning compositions, may be used in place
of that utilized above. It is further to be understood that the process as described
could be performed on a garment or textile without a spot cleaning treatment step
wherein a general cleaning and freshening effect is desired.
Cleaning Example 2
[0062] The efficacy of the liquid cleaning composition according to the invention and the
process described above was evaluated in a process wherein the "freshening" of a garment
was a primary objective to be desired.
[0063] According to this example, two identical ladies' blouses made of a 60% acetate/40%
rayon blend were utilized. To the interior of first a containment bag formed of a
single layer vapor impermeable polymer film were provided a small amount, i.e., "two
squirts" from a hand-holdable trigger dispenser, of an aqueous 0.2% isovaleric acid
composition which was provided to simulate body odor. To a second identical containment
bag, a identical amount of the aqueous acid composition was also provided. Subsequently
one of each blouses were provided to the interior of the containment bags which were
thereafter sealed. The blouses were allowed to remain in these bags for a period of
10 minutes; this allowed for the conditioning of the blouses with the acid composition
such that the blouses became malodoured.
[0064] As a "comparative" example, one of the blouses was removed, introduced into a second
new containment bag of the same a single layer vapor impermeable polymer film construction
which was subsequently sealed. Afterwards this containment bag and its contents were
provided to the interior of a domestic dryer apparatus which was operated for 20 minutes
on a "fluff" cycle; no heat was applied. The containment bag was then removed, its
contained blouse was also removed and the blouse was laid on a hard surface from whence
it could be compared by a panel of individuals as to its appearance and odiferous
characteristics.
[0065] The second blouse was removed from the bag containing the acid composition and it
was introduced into the interior of a new containment bag of the same a single layer
vapor impermeable polymer film construction as used to produce the comparative example
blouse. To this containment bag was also provided a single, approximately 2-1/2 inch
square, compressible polymeric foam cube which had been provided with 30.03 grams
of a liquid cleaning composition according to Example 12, after which the containment
bag was sealed. In a like manner to that described with reference to the comparative
example blouse, the containment bag and its contents were inserted into the interior
of a dryer apparatus which was operated for 20 minutes on the same fluff cycle after
which the containment bag and its contents were removed. During this step, it was
observed that the containment bag was found to billow, and its contents was effectively
tumbled within
[0066] After opening of the containment bag, the blouse was removed from said containment
bag and laid side-by-side with the comparative example blouse for comparison of its
visual and odiferous characteristic. The foam cube was removed and it was determined
that consequent to the 20 minutes of tumbling, that it had released approximately
59% of the liquid home dry cleaning composition which it had originally contained,
namely 17.69 grams of its liquid cleaning composition, which was further apparent
from the appearance of the blouse which was damp to the touch.
[0067] These two blouses were compared; and it was observed that the blouse treated with
the composition according to Example 12 had a significantly reduced level of malodor
than the first, control blouse.
Cleaning Example 3
[0068] An evaluation of the properties of the liquid cleaning compositions according to
the formulation of Example 13 was performed in accordance with the following general
protocol.
[0069] A clean white rayon blouse was applied at one location with 3 grams of the particularly
advantageous spot cleaning composition described above, which was applied with a pipette.
The spot cleaning formulation was allowed to spread and thus formed a wetted circular
area. The spot cleaning formulation was then manually worked in by stroking it in
using a clean absorbent paper towel so to ensure that it was well interspersed among
the fibers of the white rayon blouse.
[0070] Subsequently, a small quantity of a liquid cleaning composition according to Example
13 was applied to this wetted area as well as in the surrounding area with a hand-holdable
bottle with a manually pumpable spray dispenser bottle so to wet both the area treated
by the spot cleaning formulation and its surrounding vicinity. Subsequently, the thus
treated blouse was inserted into the interior of a containment bag which was formed
of a single-layer polymeric material which was then sealed, and it with its contents
were inserted into a domestic dryer. The dryer was operated on a "low" setting for
30 minutes where it was observed that the bag was found to billow, and the white rayon
blouse was effectively tumbled within.
[0071] The bag was then removed, and the blouse was withdrawn and observed. The blouse was
damp to the touch, and it was observed that no yellowing or any residual deposits
were discernible in the area of application of the spot cleaning composition.
Cleaning Example 4
[0072] An evaluation of the properties of the formulation according to Example 14 as utilized
in the process described above was evaluated in accordance with the following general
protocol.
[0073] A clean red-colored knitted sweater, having a fiber content of 70% lambswool, 20%
angora, and 10% nylon, and indicated by the manufacturer as "dry clean only" on its
label was laid on a hard flat surface. To four non-contiguous regions of the sweater
were applied 0.2 grams of a liquid make-up composition, 0.0015 grams of a lipstick
composition, 0.10 grams of a tomato sauce composition and 0.10 grams of a salad dressing
compositions. These stains were permitted to set in to the garment overnight.
[0074] As a control evaluation, a duplicate garment as described above, i.e., a "control
sweater", was stained in the same manner and likewise these stains were permitted
to set overnight.
[0075] The following morning, the control garment was sent off to a commercial dry cleaning
establishment where it was processed according to convention methods and returned
at a later date.
[0076] The remaining sweater was laid with the stained surface down upon laying of absorbent
paper towels and through the obverse side, or back side of the sweater from the stained
areas were applied a sufficient quantity of a spot cleaning composition according
to the especially preferred spot cleaning composition described above. This spot cleaning
composition was applied utilizing an absorbent tip dispenser in a brush stroking fashion
to impart linear strokes; application of the spot cleaning composition continued until
it was observed that substantially all of the stains were removed from the stained
garment and transferred to the clean paper towel which acted as an absorbing and stain
entraining substrate It is to be noted that cleaning the stains using the spot cleaning
composition through the obverse side of the sweater did not force the migration of
the soil or stain through the textile, but rather forced the stains directly from
the sweater's surface to the surface of the paper towel.
[0077] Subseqently was provided a single, approximately 2-1/2 inch square, compressible
polymeric foam cube which had been provided with 29.83 grams of a liquid cleaning
composition according to Example 14 described above. This liquid cleaning composition
was ideally suited for the home dry cleaning process described herein. This cube was
lightly dabbed in the regions of the areas wherein the spot cleaning composition had
been applied, particularly at the peripheries thereof in order to "feather" these
wetted areas. Immediately thereafter, the cube and the thus treated red sweater was
inserted into a containment bag formed of a non-vapor permeable material which was
then sealed. The sealed containment bag and its contents were then inserted into the
interior of a domestic dry cleaning apparatus which was then operated on a "fluff"
cycle for 20 minutes to allow the tumbling of both the red sweater and the liquid
cleaning composition entrained polymeric foam cube during this interval. During this
time, no heat was applied to the new bag or its contents by the dryer apparatus, and
the containment bag was observed to expand or billow which permitted effective tumbling
of the foam cube and the contained red sweater.
[0078] Subsequently, the containment bag was withdrawn from the dryer apparatus its contents
were also removed and examined. It was observed that 53%wt. (or 15.76 grams) of the
liquid cleaning composition of Ex. 14 had been released from the cube during the treatment
process. The visual appearance and the odiferous characteristics of this thus cleaned
red sweater were observed. It was noted that no shrinkage or color change was apparent
to this garment, but that it was damp to the touch. It was also observed that each
of the four stains formed by the liquid make-up, lipstick, tomato sauce and salad
dressing were all totally removed and further that there were no discernible residues
or residual fronts from the stained spot cleaning composition. While the sweater was
slightly damp to the touch, it did not require ironing and could be hung to dry on
a conventional clothes dryer. No unpleasant scent was observed.
[0079] This sweater was compared to the control sweater which had been cleaned by a conventional
dry cleaning establishment. Also, no shrinkage or color change was observed in this
garment, and the four stains were also effectively removed.
[0080] By comparison, it can be seen then that the use of the liquid compositions and the
processes being taught herein are very favorably comparable to that which is provided
by a conventional dry cleaning apparatus, but notably the compositions and processes
of the invention may be practiced by a consumer in a much shorter span of time and
in the convenience and approved sanitary environment of their own dryer apparatus.
Cleaning Example 5
[0081] An evaluation of the properties of the formulation according to Example 14 as utilized
in the process described above was evaluated in accordance with the following general
protocol.
[0082] A clean white blouse, having a fiber content of 6% acetate and 40% rayon and designated
by the manufacturer as "dry clean only" on its label was laid on a hard flat surface.
To four non-contiguous regions of the sweater were applied 0.2 grams of a liquid make-up
composition, 0.0015 grams of a lipstick composition, 0.10 grams of a tomato sauce
composition and 0.10 grams of a salad dressing compositions. These stains were permitted
to set in to the garment overnight.
[0083] As a control evaluation, an identical clean white blouse as described above, i.e.,
a "control blouse", was stained in the same manner and likewise these stains were
permitted to set overnight.
[0084] The following morning, the control blouse was sent off to a commercial dry cleaning
establishment where it was processed according to convention methods and returned
at a later date.
[0085] The remaining blouse was laid with the stained surface down upon laying of absorbent
paper towels and through the obverse side, or back side of the sweater from the stained
areas were applied a sufficient quantity of the especially advantageous spot cleaning
composition described above. This spot cleaning composition was applied utilizing
an absorbent tip dispenser in a brush stroking fashion to impart linear strokes; application
of the spot cleaning composition continued until it was observed that substantially
all of the stains were removed from the stained garment and transferred to the clean
paper towel which acted as an absorbing and stain entraining substrate It is to be
noted that cleaning the stains using the spot cleaning composition through the obverse
side of the sweater did not force the migration of the soil or stain through the textile,
but rather forced the stains directly from the sweater's surface to the surface of
the paper towel.
[0086] Subseqently was provided a single, approximately 2-1/2 inch square, compressible
polymeric foam cube which had been provided with 29.61 grams of a liquid cleaning
composition according to Example 14 described above. This liquid cleaning composition
was ideally suited for the home dry cleaning process described herein. This cube was
lightly dabbed in the regions of the areas wherein the spot cleaning composition had
been applied, particularly at the peripheries thereof in order to "feather" these
wetted areas. Immediately thereafter, the cube and the thus treated blouse was inserted
into a containment bag formed of a non-vapor permeable material which was then sealed.
The sealed containment bag and its contents were then inserted into the interior of
a domestic dry cleaning apparatus which was then operated on a ''fluff" cycle for
20 minutes to allow the tumbling of both the blouse and the liquid cleaning composition
entrained polymeric foam cube during this interval. During this time, no heat was
applied to the new bag or its contents by the dryer apparatus, and the containment
bag was observed to expand or billow which permitted effective tumbling of the foam
cube and the contained blouse.
[0087] Subsequently, the containment bag was withdrawn from the dryer apparatus its contents
were also removed and examined. It was observed that 57%wt. (or 16.81 grams) of the
liquid cleaning composition of Ex. 14 had been released from the cube during the treatment
process. The visual appearance and the odiferous characteristics of this thus cleaned
blouse were observed. It was noted that no shrinkage or color change was apparent
to this garment, but that it was damp to the touch. It was also observed that each
of the four stains formed by the liquid make-up, lipstick, tomato sauce and salad
dressing were essentially totally totally removed and further that there were no readily
discernible residues or residual fronts from the stained spot cleaning composition.
While the sweater was damp, almost moist to the touch, but did not require ironing
and could be hung to dry on a conventional clothes dryer. No unpleasant scent was
observed.
[0088] This blouse was compared to the control blouse which had been cleaned by a conventional
dry cleaning establishment. Also, no shrinkage or color change was observed in the
control blouse, and the four stains were also effectively removed.
[0089] As in the prior cleaning example, it can be readily appreciated that the use of the
liquid compositions and the processes being taught herein are very favorably comparable
to that which is provided by a conventional dry cleaning apparatus, but notably the
compositions and processes of the invention may be practiced by a consumer in a much
shorter span of time and in the convenience and approved sanitary environment of their
own dryer apparatus.
1. Trockenreinigungszusammensetzung für den Hausgebrauch, bestehend aus:
0,01- 0,15 Gew.-% eines nichtionischen, oberflächenaktiven Stoffs,
0,01 - 2,5 Gew.-% eines anionischen, oberflächenaktiven Stoffs, ausgewählt aus Alkylsulfosuccinaten,
Alkylethersulfosuccinaten, Alkylamidsulfosuccinaten, Alkylsulfosuccinamiden, sowie
Salzarten davon,
0 - 1 Gew.-% eines fluorierten, oberflächenaktiven Stoffs,
1,0 - 5,0 Gew.-% eines organischen Lösungsmittels, ausgewählt aus Alkoholen und
Glycolethern,
0 - 2 Gew.-% eines oder mehrerer optionaler Bestandreile, ausgewählt aus einem Stoff
zum Einstellen des pH-Werts, einem Duftstoff und einem Dufthilfsstoff oder einem Konservierungsmittel,
auf 100 Gew.-% Wasser
2. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1, wobei der
nichtionische, oberflächenaktive Stoff ein wasserlösliches, nichtionisches, alkoxyliertes
Phenol ist.
3. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1 oder 2, wobei
der nichtionische, oberflächenaktive Stoff ein wasserlöslicher, nichtionischer, alkoxylierter,
primärer Alkohol oder sekundärer Alkohol ist.
4. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1 oder 2, wobei
der nichtionische, oberflächenaktive Stoff in einer Menge von 0,1 bis 0,15 Gewichtsprozent
vorhanden ist.
5. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1 oder 2, wobei
der anionische, oberflächenaktive Stoff in einer Menge von 0,01 bis etwa 2,0 Gewichtsprozent,
bevorzugt von 0,01 bis etwa 1,0, vorhanden ist.
6. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1 oder 2, welche
einen fluorierten, oberflächenaktiven Stoff umfasst.
7. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1, oder 2, wobei
das organische Lösungsmittel in einer Menge von 1,0 bis 3,0 Gewichtsprozent vorhanden
ist.
8. Trockenreinigungszusammensetzung für den Hausgebrauch gemäß Anspruch 1 oder 2, wobei
Wasser mindestens etwa 90 Gew.-% der gesamten Zusammensetzung bildet.
9. Verfahren für den Hausgebrauch zur Trockenreinigung einer Textilie oder eines Kleidungsstücks,
welches die Schritte umfasst:
Kontaktieren einer Menge einer Trockenreinigungszusammensetzung für den Hausgebrauch
nach einem der Ansprüche 1 bis 8 mit der Textilie oder dem Kleidungsstück beim Rotieren
in einem Wäschetrockner.
10. Verfahren gemäß Anspruch 9, welches den weiteren Verfahrensschritt umfasst:
Vorbehandeln eines Flecks mit einem Tupfen der Reinigungszusammensetzung vor dem Kontaktieren
einer Menge der Trockemeinigungszusanunenselzung für den Hausgebrauch nach einem der
Ansprüche 1 bis 8 mit dem Kleidungsstück oder der Textilie.
11. Verfahren gemäß Anspruch 10, welches den weiteren verfahrensschritt einschließt:
Einlegen der Textilie oder des Kleidungsstücks in das Innere eines Einschlussbeutels,
Bereitstellen im Inneren des Einschlussbeutels einer Menge der Trockenreinigungszusammensetzung
für den Hausgebrauch,
Schließen des Einschlussbentels.
Einlegen des Einschlussbeutels, welcher die Textilie oder das Kleidungsstück enthält,
in das Innere eines Wäschetrockners, und
Betreiben des Wäschetrockners, um zu Rotieren und die Trockenreinigungszusammensetzung
für den Hausgebrauch auf der Oberfläche der Textilie oder des Kleidungsstücks, welches
in dem Binschlussbeutel enthalten ist, zu verteilen.
12. Verfahren gemäß Anspruch 11, wobei eine Trockenreinigungszusammensetzung für den Hausgebrauch
nach Anspruch 1 an einer absorbierenden, inneren Oberfläche des Einschlussbeutels
bereitgestellt wird.
13. Trockenreinigungskit für den Hausgebrauch, welches einen Einschlussbeutel, eine Menge
der Reinigungszusanunensetzung nach einem der Ansprüche 1 bis 8 und ein Spender zur
Abgabe der Reinigungszusammensetzung an Kleidungsstücke oder Textilien enthält.