Field of the Invention
[0001] The present invention relates to a composition and a process for inhibiting dye transfer
between fabrics during washing.
Background of the Invention
[0002] One of the most persistent and troublesome problems arising during modern fabric
laundering operations is the tendency of some colored fabrics to release dye into
the laundering solutions. The dye is then transferred onto other fabrics being washed
therewith.
[0003] One way of overcoming this problem would be to complex or adsorb the fugitive dyes
washed out of dyed fabrics before they have the opportunity to become attached to
other articles in the wash.
[0004] Polymers have been used within detergent compositions to inhibit dye transfer, such
as disclosed in EP-A-102 923, DE-A-2 814 329, FR-A-2 144 721 and EP-265 257.
[0005] Copending EP Patent Application 92202168.8 describes dye transfer inhibiting compostions
comprising polyamine N-oxides containing polymers.
[0006] Another way of overcoming the problem of dye transfer would be to bleach the fugitive
dyes washed out of dyed fabrics before they have the opportunity to become attached
to other articles in the wash.
[0007] Suspended or solubilized dyes can to some degree be oxidized in solution by employing
known bleaching agents.
[0008] GB 2 101 167 describes a stable liquid bleaching composition containing a hydrogen
peroxide precursor which is activated to yield hydrogen peroxide on dilution.
[0009] However it is important at the same time not to bleach the dyes actually remaining
on the fabrics, that is, not to cause color damage.
[0010] U.S. Patent 4,077,768 describes a process for inhibiting dye transfer by the use
of an oxidizing bleaching agent together with a catalytic compound such as iron porphins.
[0011] Copending EP Patent Application 91202655.6 filed October 9, 1991, relates to dye
transfer inhibiting compositions comprising an enzymatic system capable of generating
hydrogen peroxide and porphin catalysts.
[0012] It has now been surprisingly found that polyamine N-oxide polymers and metallo-catalysts
provide superior and synergistic dye transfer inhibiting properties compared to the
catalyst- or polymers-system taken alone. This finding allows to formulate compositions
which exhibit excellent dye transfer inhibiting properties with low level of catalysts,
which in turn, reduces the problem of catalyst deposition onto fabrics.
[0013] According to another embodiment of this invention a process is also provided for
laundering operations involving colored fabrics.
Summary of the Invention
[0014] The present invention relates to inhibiting dye transfer compositions comprising
polyamine N-oxide containing polymers and metallo catalysts and an efficient amount
of bleaching agent.
Detailed description of the invention
Polyamine N-oxide containing polymers
[0015] The compositions of the present invention comprise as an essential element polyamine
N-oxide polymers which contain units having the following structure formula :
wherein
[0016] P is a polymerisable unit, whereto the R-N-O group can be attached to or wherein
the R-N-O group forms part of the polymerisable unit or a combination of both.
[0017] A is
x is or 0 or 1;
[0018] R are aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups
or any combination thereof whereto the nitrogen of the N-O group can be attached or
wherein the nitrogen of the N-O group is part of these groups
[0019] The N-O group can be represented by the following general structures :
wherein R1, R2, R3 are aliphatic groups, aromatic, heterocyclic or alicyclic groups
or combinations thereof, x or/and y or/and z is 0 or 1 and wherein the nitrogen of
the N-O group can be attached or wherein the nitrogen of the N-O group forms part
of these groups
[0020] The N-O group can be part of the polymerisable unit (P) or can be attached to the
polymeric backbone or a combination of both.
[0021] Suitable polyamine N-oxides wherein the N-O group forms part of the polymerisable
unit comprise polyamine N-oxides wherein R is selected from aliphatic, aromatic, alicyclic
or heterocyclic groups.
[0022] One class of said polyamine N-oxides comprises the group of polyamine N-oxides wherein
the nitrogen of the N-O group forms part of the R-group. Preferred polyamine N-oxides
are those wherein R is a heterocyclic group such as pyrridine, pyrrole, imidazole,
pyrrolidine, piperidine and derivatives thereof.
[0023] Another class of said polyamine N-oxides comprises the group of polyamine N-oxides
wherein the nitrogen of the N-O group is attached to the R-group.
[0024] Other suitable polyamine N-oxides are the polyamine oxides whereto the N-O group
is attached to the polymerisable unit. Preferred class of these polyamine N-oxides
are the polyamine N-oxides having the general formula (I) wherein R is an aromatic,
heterocyclic or alicyclic groups wherein the nitrogen of the N-0 functional group
is part of said R group.
[0025] Examples of these classes are polyamine oxides wherein R is a heterocyclic compound
such as pyrridine, pyrrole, imidazole and derivatives thereof.
[0026] Another preferred class of polyamine N-oxides are the polyamine oxides having the
general formula (I) wherein R are aromatic, heterocyclic or alicyclic groups wherein
the nitrogen of the N-0 functional group is attached to said R groups. Examples of
these classes are polyamine oxides wherein R groups can be aromatic such as phenyl.
[0027] Any polymer backbone can be used as long as the amine oxide polymer formed is water-soluble
and has dye transfer inhibiting properties. Examples of suitable polymeric backbones
are polyvinyls, polyalkylenes, polyesters, polyethers, polyamide, polyimides, polyacrylates
and mixtures thereof.
[0028] The amine N-oxide polymers of the present invention typically have a ratio of amine
to the amine N-oxide of 10 : 1 to 1: 1000000. However the amount of amine oxide groups
present in the polyamine oxide polymer can be varied by appropriate copolymerization
or by appropriate degree of N-oxidation . Preferably, the ratio of amine to amine
N-oxide is from 3:1 to 1:1000000. The polymers of the present invention actually encompass
random or block copolymers where one monomer type is an amine N-oxide and the other
monomer type is an N-oxide or not.
[0029] The amine oxide unit of the polyamine N-oxides has a pKa < 10, preferably pKa < 7,
more preferred pKa < 6.
[0030] The polyamine oxides can be obtained in almost any degree of polymerisation. The
degree of polymerisation is not critical provided the material has the desired water-solubility
and dye-suspending power.
[0031] Typically, the average molecular weight is within the range of 500 to 1000,000 ;
more preferred 1000 to 500,000 ; most preferred 5000 to 100,000.
[0032] The polyamine N-oxides of the present invention are typically present from 0.01 to
10% , more preferably from 0.05 to 1 %, most preferred from 0.05 to 0.5 % by weight
of the dye transfer inhibiting composition.
Metallo catalyst
[0033] The preferred usage range of the catalyst in the wash is 10-
8 molar to 10-
3 molar, more preferred 10-
6 -
10-
4 molar.
[0034] The essential metallo porphin structure may be visualized as indicated in Formula
I in the accompanying drawings. In Formula I the atom positions of the porphin structure
are numbered conventionally and the double bonds are put in conventionally. In other
formula, the double bonds have been omitted in the drawings, but are actually present
as in I.
[0035] Preferred metallo porphin structures are those substituted at one or more of the
5, 10, 15 and 20 carbon positions of Formula I (Meso positions), with a phenyl or
pyridyl substituent selected from the group consisting of
wherein n and m may be 0 or 1; A is selected from water-solubilizing group, e.g.,
sulfate, sulfonate, phosphate or carboxylate groups; and B is selected from the group
consisting of C
1-C
10 alkyl, C
1-C
10 polyethoxy alkyl and C
1-C
1 o hydroxy alkyl.
[0036] Preferred molecules are those in which the substituents on the phenyl or pyridyl
groups are selected from the group consisting of
[0037] -CH
3, -C
2Hs, -CH
2CH
2CH
2S0
3-, -CH
2--, and -CH
2CH(OH)CH
2S0
3-, -S0
3
[0038] A particularly preferred metallo phorphin is one in which the molecule is substituted
at the 5, 10 15, and 20 carbon positions with the substituent
[0039] This preferred compound is known as metallo tetrasulfonated tetraphenylporphin. The
symbol X
1 is (=CY-) wherein each Y, independently, is hydrogen, chlorine, bromine, fluorine
or meso substituted alkyl, cycloalkyl, aralkyl, aryl, alkaryl or heteroaryl.
[0040] The symbol X
2 of Formula I represents an anion, preferably OH- or CI-. The compound of Formula
I may be substituted at one or more of the remaining carbon positions with C
1-C
1 0 alkyl, hydroxyalkyl or oxyalkyl groups.
[0041] Porphin derivatives also include chlorophyls, chlorines, i.e. isobacterio chlorines
and bacteriochlorines.
[0042] Metallo porphyrin and water-soluble or water-dispersable derivatives thereof have
a structure given in formula II.
where X can be alkyl, alkyl carboxy, alkyl hydroxyl, vinyl, alkenyl, alkyl sulfate,
alkylsulfonate, sulfate, sulfonate, aryl.
[0043] The symbol X
2 of Formula II represents an anion, preferably OH- or CI-.
[0044] The symbol X can be alkyl, alkylcarboxy, alkylhydroxyl, vinyl, alkenyl, alkylsulfate,
alkylsulfonate, sulfate, sulfonate.
[0045] Metallo phthalocyanine and derivatives have the structure indicated in Formula III,
wherein the atom positions of the phthalocyanine structure are numbered conventionally.
The anionic groups in the above structures contain cations selected from the group
consisting of sodium and potassium cations or other non- interfering cations which
leave the structures water-soluble. Preferred phthalocyanine derivatives are metallo
phthalocyanine trisulfonate and metallo phthalocyanine tetrasulfonate.
[0046] Another form of substitution possible for the present invention is substitution of
the central metal by Fe, Mn, Co Rh, Cr, Ru, Mo or other transition metals.
[0047] Still a number of considerations are significant in selecting variants of or substituents
in the basic porphin or azaporphin structure. In the first place, one would choose
compounds which are available or can be readily synthesized.
[0048] Beyond this, the choice of the substituent groups can be used to control the solubility
of the catalyst in water or in detergent solutions. Yet again, especially where it
is desired to avoid attacking dyes attached to solid surfaces, the substituents can
control the affinity of the catalyst compound for the surface. Thus, strongly negatively
charged substituted compounds, for instance the tetrasulfonated porphin, may be repelled
by negatively charged stained surfaces and are therefore most likely not to cause
attack on fixed dyes, whereas the cationic or zwitterionic compounds may be attracted
to, or at least not repelled by such stained surfaces.
An efficient amount of bleaching agent
[0049] The dye transfer inhibiting compositions according to the present invention comprise
an efficient amount of bleaching agent.
[0050] According to the present invention, an efficient amount of bleach is by definition
the necessary amount of bleach which combined with a bleach catalyst leads to a level
of dye oxidation which is between 40% to 100%, preferably 40% to 60%, more preferred
60% to 80%, most preferred 80%-100% of the maximum (Z) per cent of dye oxidation that
can be achieved under the most optimal conditions determined by those skilled in the
art.
[0051] The bleaches suitable for the present invention can be activated or non-activated
bleaches.
[0052] Preferably, the bleaches suitable for the present invention include peroxygen bleaches.
Examples of suitable water-soluble solid peroxygen bleaches include hydrogen peroxide
releasing agents such as hydrogen peroxide, perborates, e.g. perborate monohydrate,
perborate tetrahydrate, persulfates, percarbonates, peroxydisulfates, perphosphates
and peroxyhydrates. Preferred bleaches are percarbonates and perborates.
[0053] The hydrogen peroxide releasing agents can be used in combination with bleach activators
such as tetraacetylethylenediamine (TAED), nonanoyloxybenzenesulfonate (NOBS, described
in US 4,412,934),3,5,5-trimethylhexanoloxybenzenesulfonate (ISONOBS, described in
EP 120,591), or pentaacetylglucose (PAG), which are perhydrolyzed to form a peracid
as the active bleaching species, leading to improved bleaching effect.
[0054] The hydrogen peroxide may also be present by adding an enzymatic system (i.e. an
enzyme and a substrate therefore) which is capable of generating hydrogen peroxide
at the beginning or during the washing and/or rinsing process. Such enzymatic systems
are disclosed in EP Patent Application 91202655.6 filed October 9, 1991.
[0055] Other peroxygen bleaches suitable for the present invention include organic peroxyacids
such as percarboxylic acids.
Test Methods:
[0056] For a given catalyst concentration, temperature and pH, the following two test methods
can be used to estimate the optimum bleach level that gives the maximum level of dye
oxidation, i.e. Z.
(a) In solution dye bleaching:
[0057] In a detergent solution, fix the initial concentration of dye (e.g. 40 ppm) and catalyst.
Record the absorbance spectrum of this solution using a UV-Vis spectrophotometer according
to procedures known to those skilled in the art. Add a given concentration of bleach
(H202, oxone, percarbonate, perborate, activated bleach, etc..) and stir the solution
containing the dye and catalyst. After stirring for 30 min, record again the absorbance
spectrum of the solution. The amount of dye oxidation can then be determined from
the change in the absorbance maximum for the dye. Keeping the experimental conditions
the same, vary the amount of bleach so as to achieve the maximum dye oxidation.
(b) Reduction of dye transfer from fabric to another fabric
[0058] In either a washing machine or launderometer, add a known bleeding fabric and a known
uncolored pick-up tracer (e.g. cotton) to the wash load. After simulating a wash cycle,
determine the amount of dye that has been picked up by the tracer according to methods
known to those skilled in the art. Now to separate washing machines, add the same
amount of bleeding fabric and pick-up tracer, a fixed amount of catalyst and vary
the bleach level. Determine the level of dye transfer onto the pick-up tracers and
vary the amount of bleach as to minimize dye transfer. In this way the most optimal
bleach concentration can be determined.
DETERGENT ADJUNCTS
[0059] A wide range of surfactants can be used in the detergent compositions. A typical
listing of anionic, nonionic, ampholytic and zwitterionic classes, and species of
these surfactants, is given in US Patent 3,664,961 issued to Norris on May 23, 1972.
[0060] Mixtures of anionic surfactants are particularly suitable herein, especially mixtures
of sulphonate and sulphate surfactants in a weight ratio of from 5:1 to 1:2, preferably
from 3:1 to 2:3, more preferably from 3:1 to 1:1. Preferred sulphonates include alkyl
benzene sulphonates having from 9 to 15, especially 11 to 13 carbon atoms in the alkyl
radical, and alpha-sulphonated methyl fatty acid esters in which the fatty acid is
derived from a C
12-Cl8 fatty source preferably from a C
16-C
18 fatty source. In each instance the cation is an alkali metal, preferably sodium.
Preferred sulphate surfactants are alkyl sulphates having from 12 to 18 carbon atoms
in the alkyl radical, optionally in admixture with ethoxy sulphates having from 10
to 20, preferably 10 to 16 carbon atoms in the alkyl radical and an average degree
of ethoxylation of 1 to 6. Examples of preferred alkyl sulphates herein are tallow
alkyl sulphate, coconut alkyl sulphate, and C14 -15 alkyl sulphates. The cation in
each instance is again an alkali metal cation, preferably sodium.
[0061] One class of nonionic surfactants useful in the present invention are condensates
of ethylene oxide with a hydrophobic moiety to provide a surfactant having an average
hydrophiliclipophilic balance (HLB) in the range from 8 to 17, preferably from 9.5
to 13.5, more preferably from 10 to 12.5. The hydrophobic (lipophilic) moiety may
be aliphatic or aromatic in nature and the length of the polyoxyethylene group which
is condensed with any particular hydrophobic group can be readily adjusted to yield
a water-soluble compound having the desired degree of balance between hydrophilic
and hydrophobic elements.
[0062] Especially preferred nonionic surfactants of this type are the C
9-C
15 primary alcohol ethoxylates containing 3-8 moles of ethylene oxide per mole of alcohol,
particularly the C14-C15 primary alcohols containing 6-8 moles of ethylene oxide per
mole of alcohol and the C
12-C14 primary alcohols containing 3-5 moles of ethylene oxide per mole of alcohol.
[0063] Another class of nonionic surfactants comprises alkyl polyglucoside compounds of
general formula
wherein Z is a moiety derived from glucose; R is a saturated hydrophobic alkyl group
that contains from 12 to 18 carbon atoms; t is from 0 to 10 and n is 2 or 3; x is
from 1.3 to 4, the compounds including less than 10% unreacted fatty alcohol and less
than 50% short chain alkyl polyglucosides. Compounds of this type and their use in
detergent are disclosed in EP-B 0 070 077, 0 075 996 and 0 094 118.
[0064] Also suitable as nonionic surfactants are poly hydroxy fatty acid amide surfactants
of the formula
wherein R
1 is H, or R
1 is C
1 -
4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl or a mixture thereof, R
2 is C
s-
31 hydrocarbyl, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain
with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative
thereof. Preferably, R
1 is methyl, R
2 is a straight C11
1 -
15 alkyl or alkenyl chain such as coconut alkyl or mixtures thereof, and Z is derived
from a reducing sugar such as glucose, fructose, maltose, lactose, in a reductive
amination reaction.
[0065] The compositions according to the present invention may further comprise a builder
system. Any conventional builder system is suitable for use herein including aluminosilicate
materials, silicates, polycarboxylates and fatty acids, materials such as ethylenediamine
tetraacetate, metal ion sequestrants such as aminopolyphosphonates, particularly ethylenediamine
tetramethylene phosphonic acid and diethylene triamine pentamethylenephosphonic acid.
Though less preferred for obvious environmental reasons, phosphate builders can also
be used herein.
[0066] Suitable builders can be an inorganic ion exchange material, commonly an inorganic
hydrated aluminosilicate material, more particularly a hydrated synthetic zeolite
such as hydrated zeolite A, X, B or HS.
[0067] Another suitable inorganic builder material is layered silicate, e.g. SKS-6 (Hoechst).
SKS-6 is a crystalline layered silicate consisting of sodium silicate (Na
2S1
20
5).
[0068] Suitable polycarboxylates builders for use herein include citric acid, preferably
in the form of a water- soluble salt, derivatives of succinic acid of the formula
R-CH(COOH)CH2(COOH) wherein R is C10-20 alkyl or alkenyl, preferably C12-16, or wherein
R can be substituted with hydroxyl, sulfo sulfoxyl or sulfone substituents. Specific
examples include lauryl succinate , myristyl succinate, palmityl succinate2-dodecenyl-
succinate, 2-tetradecenyl succinate. Succinate builders are preferably used in the
form of their water-soluble salts, including sodium, potassium, ammonium and alkanolammonium
salts.
[0069] Other suitable polycarboxylates are oxodisuccinates and mixtures of tartrate monosuccinic
and tartrate disuccinic acid such as described in US 4,663,071.
[0070] Especially for the liquid execution herein, suitable fatty acid builders for use
herein are saturated or unsaturated C10-18 fatty acids, as well as well as the corresponding
soaps.
[0071] Preferred saturated species have from 12 to 16 carbon atoms in the alkyl chain. The
preferred unsaturated fatty acid is oleic acid.
[0072] Preferred builder systems for use in granular compositions include a mixture of a
water-insoluble aluminosilicate builder such as zeolite A, and a watersoluble carboxylate
chelating agent such as citric acid.
[0073] Other builder materials that can form part of the builder system for use in granular
compositions the purposes of the invention include inorganic materials such as alkali
metal carbonates, bicarbonates, silicates, and organic materials such as the organic
phosphonates, amiono polyalkylene phosphonates and amino polycarboxylates.
[0074] Other suitable water-soluble organic salts are the homo- or co-polymeric acids or
their salts, in which the polycarboxylic acid comprises at least two carboxyl radicals
separated from each other by not more than two carbon atoms.
[0075] Polymers of this type are disclosed in GB-A-1,596,756. Examples of such salts are
polyacrylates of MW 2000-5000 and their copolymers with maleic anhydride, such copolymers
having a molecular weight of from 20,000 to 70,000, especially about 40,000.
[0076] Detergency builder salts are normally included in amounts of from 10% to 80% by weight
of the composition preferably from 20% to 70% and most usually from 30% to 60% by
weight.
[0077] Other components used in detergent compositions may be employed, such as bleaches,
suds boosting or depressing agents, enzymes and stabilizers or activators therefor,
soil-suspending agents soil-release agents, optical brighteners, abrasives, bactericides,
tarnish inhibitors, coloring agents, and perfumes. Especially preferred are combinations
with technologies which also provide a type of color care benefit. Examples of these
technologies are polyvinylpyrrolidone polymers and other polymers which have dye transfer
inhibiting properties. Another example of said technologies are cellulase for color
maintenance/ rejuvenation.
[0078] Other examples are polymers disclosed in EP 92870017.8 filed January 31, 1992 and
enzyme oxidation scavengers disclosed in EP 92870018.6 filed January 31, 1992. also
particularly suitable are amine base catalyst stabilizers disclosed in EP 92870019.4
filed January 31, 1992.
[0079] The detergent compositions according to the invention can be in liquid, paste or
granular forms. Granular compositions according to the present invention can also
be in "compact form", i.e. they may have a relatively higher density than conventional
granular detergents, i.e. from 550 to 950 g/I; in such case, the granular detergent
compositions according to the present invention will contain a lower amount of "inorganic
filler salt", compared to conventional granular detergents; typical filler salts are
alkaline earth metal salts of sulphates and chlorides, typically sodium sulphate;
"compact" detergents typically comprise not more than 10% filler salt. The liquid
compositions according to the present invention can also be in "compact form", in
such case, the liquid detergent compositions according to the present invention will
contain a lower amount of water,compared to conventional liquid detergents.
[0080] The present invention also relates to a process for inhibiting dye transfer from
one fabric to another of solubilized and suspended dyes encountered during fabric
laundering operations involving colored fabrics.
[0081] The process comprises contacting fabrics with a laundering solution as hereinbefore
described.
[0082] The process of the invention is conveniently carried out in the course of the washing
process. The washing process is preferably carried out at 5
° C to 75 °C, especially 20 to 60, but the polymers are effective at up to 95
° C. The pH of the treatment solution is preferably from 7 to 11, especially from 7.5
to 10.5.
[0083] The process and compositions of the invention can also be used as additive during
laundry operations.
[0084] The following examples are meant to exemplify compositions of the present invention
, but are not necessarily meant to limit or otherwise define the scope of the invention,
said scope being determined according to claims which follow.
Example I
[0085] The extent of dye transfer from different colored fabrics was studied using a launder-o-meter
test which simulates a 30 min wash cycle. The launder-o-meter beaker contains 200
ml of a detergent solution (pH 7.5- 10.5), a 10x10 cm piece of the colored fabric
and a multi-fiber swatch which is used as a pick-up tracer for the bleeding dye. The
multifiber swatch consists of 6 strips (1.5cmx1.5cm each) made of different materials
(polyacetate, cotton, polyamide, polyester, wool and orlon) which were sewn together.
[0086] The extent of dye transfer is reported in terms of the A c value which represents
the change in the Hunter a, b values and is defined by the following equation:
where the subscripts i and f refer to the Hunter value before and after washing in
the presence of the bleeding fabric, respectively.
Example I(a): poly(4-vinylpyridine-N-oxide) and FeTPPS
[0087] The experimental conditions are:
A: detergent solution without any dye transfer inhibition system.
B: detergent solution containing 10 ppm of Iron-tetrasulfonated phenylporphyrin (FeTPPS)
and the optimum level of bleach as determined from the test method above.
C: detergent solution containing 10 ppm of poly(4-vinylpyridine-N-oxide). (PVNO)
D: detergent solution containing 10 ppm of FeTPPS and 10 ppm of poly(4-vinylpyridine-N-oxide).
[0088] The higher the AC value, the more dye transferred onto the pick-up swatch.
[0089] Conclusion: The dye transfer inhibition benefits from the combined PVNO and FeTPPS
are in all cases better than benefits provided by either the catalyst or polymer alone.
In addition, not only additive effects are observed but these results show true synergism
between the catalyst and poly(4-vinylpyridine-N-oxide).
Example I(b): poly(4-vinylpyridine-N-oxide) and MnPc
[0090] The experimental conditions are:
A: detergent solution without any dye transfer inhibition system.
B: detergent solution containing 10 ppm of Mn-Phthalocyanine tetrasulfonated (MnPC)
and the optimum level of bleach as determined from the test method above.
C: detergent solution containing 10 ppm of poly(4-vinylpyridine-N-oxide). (PVNO)
D: detergent solution containing 10 ppm of MnPc and 10 ppm of poly(4-vinylpyridine-N-oxide).
[0091] Conclusion: The dye transfer inhibition benefits from the combined PVNO and MnPC
are in all cases better than benefits provided by either the catalyst or polymer alone.
In addition, these results show true synergism between the catalyst and poly(4-vinylpyridine-N-oxide).
EXAMPLE 11 (A/B/C/D)
[0092] A liquid dye transfer inhibiting composition according to the present invention is
prepared, having the following compositions :
[0093] The above composition was supplemented with the catalyst, polymer and bleach according
to table I
Example III (A/B/C/D):
[0094] A compact granular dye transfer inhibiting composition according to the present invention
is prepared, having the following formulation:
[0095] The above composition was supplemented with the catalyst, polymer and bleach according
to table II
1. A dye transfer inhibiting composition comprising:
A. a metallo catalyst selected from
a) metallo porphin and water-soluble or water-dispersable derivatives thereof;
b) metallo porphyrin and water-soluble or water-dispersable derivatives thereof;
c) metallo phthalocyanine and water-soluble or water-dispersable derivatives thereof;
B. polyamine N-oxide containing polymers
C. an efficient amount of a bleaching agent.
2. A dye transfer inhibiting composition according to claim 1 containing a metallo
porphin derivative, wherein said porphin is substituted on at least one of its meso
positions with a phenyl or pyridyl substituent selected from the group consisting
of
wherein n and m may be 0 or 1, A is selected from the water-solubilizing group, e.g.,
sulfate, sulfonate, phosphate, and carboxylate groups, and B is selected from the
group consisting of C
1-C
1 0 alkyl, Ci-C
1 o polyethoxyalkyl and C
1-C
1 o hydroxyalkyl.
3. A dye transfer inhibiting composition according to claim 2 wherein the substituents
on the phenyl or pyridyl groups are selected from the group consisitng of -CH3, -C2Hs, -CH2CH2CH2S03-, -CH2COO-, -CH2C-H(OH)CH2S03-, and -S03.
4. A dye transfer inhibiting composition according to claims 1-3, containing a metallo
porphin derivative, wherein said metallo porphin is substituted on at least one of
its meso positions with a phenyl substituent selected from the group consisting of
wherein X
1 is (=CY-) wherein each Y, independently, is hydrogen, chlorine, bromine or meso substituted
alkyl, cycloalkyl, aralkyl, aryl, alkaryl or heteroaryl.
5. A dye transfer inhibiting composition according to claim 1 wherein the central
atom is selected from Fe, Mn, Co, Rh, Cr, Ru, Mo or other transition metals.
6. A dye transfer inhibiting composition according to claim 1 wherein the wash concentration
of metallo catalyst is from 10-8 to 10-3 molar, preferably from 10-6 to 10-4 molar.
7. A dye transfer inhibiting composition according to claims 1-6 wherein the polyamine
N-oxide is polyvinylpyridine N-oxide
8. A dye transfer inhibiting composition according to claim 1 wherein the bleaching
agent is selected from an activated or a non-activated bleach.
9. A dye transfer inhibiting composition according to claims 1-8 which is a detergent
additive, in the form of a non-dusting granule or a liquid.
10. A detergent composition which comprises a dye transfer inhibiting composition
according to any of the preceding claims further comprising enzymes, surfactants,
builders, and other conventional detergent ingredients.
11. A detergent composition which comprises a dye transfer inhibiting composition
according to any of the preceding claims further comprising a cellulase.