Note: Descriptions are shown in the official language in which they were submitted.
21673~9
W095/03387 ^ PCT~S94/07069
SOFTENING THROUGH THE WASH COMPOSITIONS
Field of Invention
The present invention relates to detergent compositions
containing a clay-softening system. More in particular, the
present invention relates to dye transfer inhibiting
compositions comprising polyamine N-oxide containing polymers
and a clay-softening system.
Background of the Invention
Clays, in particular smectite clays are known fabric-
softening agents, and their use in fabric-softening through
the wash has been disclosed in the art.
The relative ability of the softening clays to meet various
performance criteria is among others depending on the presence
of adjunct detergent ingredients. As a consequence, the
detergent formulator is faced with a difficult task of
providing detergent compositions which have an excellent
overall performance.
wo gs/03387 2 l 6~ 7 3 ~ PCT/US94/07069
One of the types of adjunct detergent ingredients that is
added to detergent compositions are dye transfer inhibiting
polymers. Said polymers are added to detergent compositions in
order to inhibit the transfer of dyes from colored fabrics
onto other fabrics washed therewith. These polymers have the
ability to complex or adsorb the fugitive dyes washed out of
dyed fabrics before the dyes have the opportunity to become
attached to other articles in the wash.
Polymers have been used within detergent compositions to
inhibit dye transfer.
Examples of such polymers are vinylpyrrolidone polymers such
as described EP-A-265 257 and EP 508 034.
Unfortunately, said vinylpyrrolidone polymers tend to interact
with the clays formulated therewith. Accordingly, the dye
transfer inhibiting performance of the polymers and the
softening performance of the clays are negatively affected.
It has now been found that polyamine N-oxide containing
polymers are very compatible with clays in that the dye
transfer inhibiting performance of the polyamine N-oxide
containing polymers is not negatively affected in the
presence of clays. In addition, it has been found that the
softening performance of clays formulated with polyamine N-
oxide containing polymers has been maintained.
This finding allows us to formulate detergent compositions
which have both excellent dye transfer inhibiting properties
and softening performance.
According to another embodiment of this invention a process
is also provided for laundering operations involving colored
fabrics.
Copending European Patent Application N 92202168.8
describes polyamine N-oxide containing polymers which are very
efficient in eliminating transfer of solubilized or suspended
dyes.
Summary of the Invention
The present invention relates to inhibiting dye transfer
compositions comprising polyamine N-oxide containing polymers
and a clay softening system.
W095/03387 Z 16 7 3 6 9 ; PCT~S94/07069
Detailed description of the invention
The compositions of the present invention comprise as an
essential element a polymer selected from polyamine N-oxide
containing polymers which contain units having the following
structure formula :
(I) Ax
I
R
wherein P is a polymerisable unit, whereto the N-O group can
be attached to or wherein the N-O group forms part of
the polymerisable unit or a combination of both.
O O O
Il 11 ~I I
A is NC, CO, C, -O-,-S-, -N- ; x is O or 1;
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.
The N-O group can be represented by the following general
structures :
O O
(Rl)x -N- (R2)y =N- (Rl)x
I
(R3)z
wherein R1, R2, and 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.
W095/03387 2 161 3 6 9 PCT~S94/07069
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.
Suitable polyamine N-oxides wherein the N-O group forms part
of the polymerisable unit comprise polyamine N-oxide
containing polymers wherein R is selected from aliphatic,
aromatic, alicyclic or heterocyclic groups.
One class of said polyamine N-oxide containing polymers
comprises the group of polyamine N-oxides wherein the nitrogen
of the N-O group forms part of the R-group. Preferred
polyamine N-oxide containing polymers are those wherein R is a
heterocyclic group such as pyridine, pyrrole, imidazole,
pyrrolidine, piperidine, quinoline, acridine and derivatives
thereof.
Another class of said polyamine N-oxide containing polymers
comprises the group of polyamine N-oxides wherein the nitrogen
of the N-O group is attached to the R-group.
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.
Examples of these classes are polyamine oxides wherein R is a
heterocyclic compound such as pyridine, pyrrole, imidazole and
derivatives thereof.
Another preferred class of polyamine N-oxides are the
polyamine N-oxide containing polymers 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.
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,
wo 95,03387 ~ ~ 6 7 3 ~ g ~ PCT~S94/07069
polyethers, polyamide, polylmides, polyacrylates and mlxtures
thereof.
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 containing 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 2:3 to 1:1000000. More preferably from 1:4 to 1:1000000,
most preferably from 1:7 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 either an amine N-oxide or not. The
amine oxide unit of the polyamine N-oxides has a PKa < 10,
preferably PKa < 7, more preferred PKa < 6.
The polyamine N-oxide containing polymers 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.
Typically, the average molecular weight is within the range of
500 to 1000,000; preferably from 1,000 to 50,000, more
preferably from 2,000 to 30,000, most preferably from 3,000 to
20,000.
The polyamine N-oxide containing polymers of the present
invention are typically present from 0.001 to 10~, more
preferably from 0.01 to 2%, most preferred from 0.05 to 1~ by
weight of the dye transfer inhibiting composition.
The present compositions are conveniently used as additives to
conventional detergent compositions for use in laundry
operations. The present invention also encompasses dye
transfer inhibiting compositions which will contain detergent
ingredients and thus serve as detergent compositions.
Methods for making polyamine N-oxides :
The production of the polyamine-N-oxides may be accomplished
by polymerizing the amine monomer and oxidizing the resultant
polymer with a suitable oxidizing agent, or the amine oxide
W095/03387 216 ~ 3 6 g PCT~S94/07069
monomer may itself be polymerized to obtain the polyamine N-
oxide.
The synthesis of polyamine N-oxide can be exemplified by the
synthesis of polyvinyl-pyridine N-oxide.
Poly-4-vinylpyridine ex Polysciences (mw. 50 000, 5.0 g.,
0.0475 mole) was predisolved in 50 ml acetic acid and treated
with a peracetic acid solution (25 g of glacial acetic acid,
6.4 g of a 30% vol. solution of H202, and a few drops of H2S04
give 0.0523 mols of peracetic acid) via a pipette. The mixture
was stirred over 30 minutes at ambient temperature (32 C).
The mixture was then heated to 80-85 C using an oil bath for 3
hours before allowing to stand overnight. The polymer
solution then obtained is mixed with 11 of acetone under
agitation. The resulting yellow brown viscous syrup formed on
the bottom is washed again with 11 of aceton to yield a pale
crystalline solid.
The solid was filtered off by gravity, washed with acetone and
then dried over P205.
The amine : amine N-oxide ratio of this polymer is 1:4.
The clay softening system
_________________________
The clay softening system comprises a fabric softening clay
and may additionally comprise a clay flocculating agent and/or
a humectant.
The fabric softening clay
The clay softening system hereof will comprise a fabric
softening clay present in an amount of at least 0.5%,
preferable from 4% to 30% by weight of the dye transfer
inhibiting composition. The preferred clays are of the
smectite type.
Smectite type clays are widely used as fabric softening
ingredients in detergent compositions. Most of these clays
have a cation exchange capacity of at least 50 meq./lOOg.
wo g~,03387 2 1 6 7 3 ~ 9 PCT~S94tO7069
Smectite clays can be described as three-layer expandable
materials, consisting of alumino-silicates or magnesium
silicates.
There are two distinct classes of smectite-type clays; in
the first, aluminium oxide is present in the silicate crystal
lattice, in the second class of smectites, magnesium oxide is
present in the silicate crystal lattice.
The general formulas of these smectites are A12~S120s)2(0H)2
and Mg3(Si20s) (OH)2, for the aluminium and magnesium oxide
type clay, respectively. The range of the water of hydration
can vary with the processing to which the clay has been
subjected. Furthermore, atom substitution by iron and
magnesium can occur within the crystal lattice of the
smectites, while metal cations such as Na+, Ca2+, as well as
H+ can be co-present in the water of hydration to provide
electrical neutrality.
It is customary to distinguish between clays on the basis of
one cation predominantly or exclusively absorbed. For example,
a sodium clay is one in which the absorbed cation is
predominantly sodium. Such absorbed cations can become
involved in equilibrium exchange reactions with cations
present in aqueous solutions. In such equilibrium reactions,
one equivalent weight of solution cation replaces an
equivalent of sodium, for example, and it is customary to
measure clay cation exchange capacity in terms of
milliequivalents per lOOg. of clay (meq/lOOg.).
The cation exchange capacity of clays can be measured in
several ways, including electrodialysis, by exchange with
ammonium ion followed by titration, or by a methylene blue
procedure, all as set forth in Grimshaw, The Chemistry and
Physics of Clays, Interscience Publishers, Inc. pp. 264-
265(1971). The cation exchange capacity of a clay mineral
relates to such factors as the expandable properties of the
clay, the charge of the clay, which in turn, is determinated
at least in part by the lattice structure, and the like. The
ion exchange capacity of clays varies widely in the range from
about 2 meq/100 g. for kaolinites to about 150 meq/100 g., and
W095t~387 2 ~ 6 ~ 3 6 9 PCT~S94/07069
greater, for certain clays of the montmorillonite variety.
Illite clays have an ionexchange capacity somewhere in the
lower portion of the range, ca. 26 meq/100 g. for an average
lllite clay.
It has been determined that illite and kaolinite clays, with
their relatively low ion exchange capacities, are not useful
in the instant compositions. Indeed such illite and kaolinite
clays constitute a major component of clay soils. However,
smectites, such as nontronite having an ionexchange capacity
of approximately 50 meq/100 g.;saponite, which has an ion
exchange capacity greater than 70 meq/lOOg., have been found
to be useful fabric softeners.
The smectite clays commonly used for this purpose herein are
all commercially available. Such clays include, for example,
montmorillonite, volchonskoite, nontronite, hectorite,
saponite, sauconite, and vermiculite. The clays herein are
available under commercial names such as "fooler clay" (clay
found in a relatively thin vein above the main bentonite or
montmorillonite veins in the Black Hills) and various
tradenames such as Thixogel #1 (also, "Thixo-Jell") and
Gelwhite GP from Georgia Kaolin Co. Elizabeth, New Jersey;
Volclay BC and Volclay #32S, from American Colloid Co.,
Skokie, Illinois; Black Hills Bentonite BH 450, from
International Minerals and Chemicals; and Veegum Pro and
Veegum F, from R.T. Vanderbilt. It is to be recognized that
such smectite-type minerals obtained under the foregoing
commercial and tradenames can comprise mixtures of the various
discrete mineral entitites. Such mixtures of the smectite
minerals are suitable for use herein.
Preferred for use herein are the montmorrillonite clays.
Quite suitable are hectorites of natural origin, in the form
of particles having the general formula
WOg5/~387 2 16 7 3 6 9 PCT~S94/07069
III
[(Mg3_xLix)si4_yMeyolo(oH2-zFz)] (x+Y)(x+y)Mn+
~i
wherein MeIII is Al, Fe, or B; or y=o; Mn+ is a monovalent
(n=1) or divalent (n=2) metal ion, for example selected from
Na, K, Mg, Ca, Sr.
In the above formula, the value of (x+y) is the layer charge
of the hectorite clay.
Such hectorite clays are preferably selected on the basis of
their layer charge properties, i.e. at least 50% is in the
range of from 0.23 to 0.31.
More suitable are hectorite clays of natural origin having a
layer charge distribution such that at least 65~ is in the
range of from 0.23 to 0.31.
The hectorite clays suitable in the present composition
should preferably be sodium clays, for better softening
activity.
Sodium clays are either naturally occuring, or are
naturally-occuring calcium-clays which have been treated so as
to convert them to sodium-clays. If calcium-clays are used in
the present compositions, a salt of sodium can be added to the
compositions in order to convert the calcium clay to a sodium
clay. Preferably, such a salt is sodium carbonate, typically
added at levels of up to 5% of the total amount of clay.
Examples of hectorite clays suitable for the present
compositions include Bentone EW and Macaloid, from NL
Chemicals, N.J., U.S.A., and hectorites from Industrial
Mineral Ventures.
wo 95/03387 Z ~ ~ 7 ~ 6 g PCT~S94/07069
Clay-flocculating agents
The clay softening system herein can comprise clay-
flocculating agents. The compositions herein may comprise,
from 0.05% to 20~ by weight of the clay, of flocculating
agent, lf its molecular weight is 150.000-800.000 and from
0.005% to 2%, by weight of the clay, it its molecular weight
is from 800.000 to 5 million. Most of these materials are
fairly long chain polymers and copolymers derived from such
monomers as ethylene oxide, acrylamide, acrylic acid,
dimethylamino ethyl methacrylate, vinyl alcohol, vinyl
pyrrolidone, ethylene imine. Gums, like guar gum, are suitable
as well.
Preferred are polymers of ethylene oxide, acryl amide, or
acrylic acid. For proper interaction with the clay particles,
the polymers should be fairly long chain, i.e., have a weight
average molecular weight of at least 100,000. For sufficient
water-solubility the weight average molecular weight of the
polymers should not exceed 10 million. Most preferred are
polymers having a weight average molecular weight of from
150.000 to 5 million
The humectant
The organic humectant optionally employed in the clay
agglomerates herein, may be any of the various water soluble
materials utilized for such a purpose. The organic humectant
is preferably selected from the group consisting of a)
aliphatic hydrocarbon polyols having from 2 to 9 carbon atoms;
b) ether alcohols derived from the polyols of a); c) ester
alcohols derived from the polyols of a); d) mono- and
oligosaccharides; and mixtures thereof.
Highly preferred humectants include glycerol, ethylene
glycol, propylene glycol and the dimers and trimers of
glycerol, of ethylene glycol and of propylene glycol.
The clay softening system can comprise from 0.5~ to 30%,
preferably from 2~ to 15~, of the humectant by weight of the
clay.
l O
WO95/~387 2 ~ ~ ~ 3 6 9 PCT~S94/07069
DETERGENT ADJUNCTS
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.
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 C12-C1g fatty source preferably from a
Cl6-C1g 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 wlth
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_1s alkyl sulphates. The cation in each instance is again
an alkali metal cation, preferably sodium.
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 hydrophilic-
lipophilic 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.
wo 95,~387 2 ~ ~ 7 3 S 9 PCT~S94/07069
Especially preferred nonionic surfactants of this type are
the Cg-C1s primary alcohol ethoxylates containing 3-8 moles of
ethylene oxide per mole of alcohol, particularly the C14-C1s
primary alcohols containing 6-8 moles of ethylene oxide per
mole of alcohol and the C12-C14 primary alcohols containing 3-
5 moles of ethylene oxide per mole of alcohol.
Another class of nonionic surfactants comprises alkyl
polyglucoside compounds of general formula
RO (CnH2nO)tZx
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.
Also suitable as nonionic surfactants are poly hydroxy fatty
acid amide surfactants of the formula
R2 - C - N - Z
Il I
O Rl
wherein R1 is H, or Rl is Cl_4 hydrocarbyl, 2-hydroxy ethyl,
2-hydroxy propyl or a mixture thereof, R2 is Cs_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, R1 is methyl, R2 is a straight C11_1s 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.
W095/03387 21 6 7 3 6 9 PCT~S94/07069
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.
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.
Another suitable inorganic builder material is layered
silicate, e.g. SKS-6 (Hoechst). SKS-6 is a crystalline
layered silicate consisting of sodium silicate (Na2Si2Os).
Suitable polycarboxylates containing one carboxy group
include lactic acid, glycolic acid and ether derivatives
thereof as disclosed in Belgian Patent Nos. 831,368, 821,369
and 821,370. Polycarboxylates containing two carboxy groups
include the water-soluble salts of succinic acid, malonic
acid, (ethylenedioxy) diacetic acid, maleic acid, diglycollic
acid, tartaric acid, tartronic acid and fumaric acid, as well
as the ether carboxylates described in German
Offenlegenschrift 2,446,686, and 2,446,687 and U.S. Patent No.
3,935,2S7 and the sulfinyl carboxylates described in Belgian
Patent No. 840,623. Polycarboxylates containing three carboxy
groups include, in particular, water-soluble citrates,
aconitrates and citraconates as well as succinate derivatives
such as the carboxymethyloxysuccinates described in British
Patent No. 1,379,241, lactoxysuccinates described in
Netherlands Application 7205873, and the oxypolycarboxylate
materials such as 2-oxa-1,1,3-propane tricarboxylates
described in British Patent No. 1,387,447.
W095/~387 2 t 6 ~ 3 6 9 PCT~S94/07069
Polycarboxylates containing four carboxy groups include
oxydisuccinates disclosed in British Patent No. 1,261,829,
1,1,2,2-ethane tetracarboxylates, 1,1,3,3-propane
tetracarboxylates and 1,1,2,3-propane tetracarboxylates.
Polycarboxylates containing sulfo substituents include the
s~lfosuccinate derivatives disclosed in British Patent Nos.
1,398,421 and 1,398,422 and in U.S. Patent No. 3,936,448, and
the sulfonated pyrolysed citrates described in British Patent
No. 1,082,179, while polycarboxylates containlng phosphone
substituents are disclosed in British Patent No. 1,439,000.
Alicyclic and heterocyclic polycarboxylates include
cyclopentane-cis,cis,cis-tetracarboxylates, cyclopentadienide
pentacarboxylates, 2,3,4,5-tetrahydrofuran - cis, cis, cis-
tetracarboxylates, 2,5-tetrahydrofuran -cis - dicarboxylates,
2,2,5,5-tetrahydrofuran - tetracarboxylates, 1,2,3,4,5,6-
hexane -hexacarboxylates and and carboxymethyl derivatives of
polyhydric alcohols such as sorbitol, mannitol and xylitol.
Aromatic polycarboxylates include mellitic acid, pyromellitic
acid and the phtalic acid derivatives disclosed in British
Patent No. 1,425,343.
Of the above, the preferred polycarboxylates are
hydroxycarboxylates containing up to three carboxy groups per
molecule, more particularly citrates.
Preferred builder systems for use in the present compositions
include a mixture of a water-insoluble aluminosilicate builder
such as zeolite A or of a layered silicate tsks/6), and a
water-soluble carboxylate chelating agent such as citric acid.
A suitable chelant for inclusion in the detergent
compositions in accordance with the invention is
ethylenediamine-N,N'-disuccinic acid (EDDS) or the alkali
metal, alkaline earth metal, ammonium, or substituted ammonium
salts thereof, or mixtures thereof. Preferred EDDS compounds
are the free acid form and the sodium or magnesium salt
thereof. Examples of such preferred sodium salts of EDDS
include Na2EDDS and Na4EDDS. Examples of such preferred
W095t03387 ~ ~ 6 7 ~ 6 9 PCT~S94/07069
magnesium salts of EDDS include MgEDDS and Mg~EDDS. The
magnesium salts are the most preferred for inclusicn in
compositions in accordance with the invention.
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.
Preferred saturated species have from 12 to 16 carbon atoms in
the alkyl chain. The preferred unsaturated fatty acid is oleic
acid.
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.
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.
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.
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.
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.
Detergent ingredients that can be included in the detergent
compositions of the present invention include bleaching
agents.
These bleaching agent components can include one or more
oxygen bleaching agents and, depending upon the bleaching
WO95l03387 216 7 3 6 9 PCT~S94/07069
agent chosen, one or more bleach activators. When present
bleaching compounds will typically be present at levels of
from about 1~ to about 10`~, of the detergent composition. In
general, bleaching compounds are optional components in non-
liquid formulations, e.g. granular detergents. If present, the
amount of bleach activators will typically be from about 0.1%
to about 60%, more typically from about 0.5% to about 40% of
the bleaching composition.
The bleaching agent component for use herein can be any
of the bleaching agents useful for detergent compositions
including oxygen bleaches as well as others known in the art.
In a method aspect, this invention further provides a
method for cleaning fabrics, fibers, textiles, at temperatures
below about 50C, especially below about 40C, with a
detergent composition containing polyamine N-oxide containing
polymers, optional auxiliary detersive surfactants, optional
detersive adjunct ingredients, and a bleaching agent.
The bleaching agent suitable for the present invention can be
an activated or non-activated bleaching agent.
One category of oxygen bleaching agent that can be used
encompasses percarboxylic acid bleaching agents and salts
thereof. Suitable examples of this class of agents include
magnesium monoperoxyphthalate hexahydrate, the magnesium salt
of meta-chloro perbenzoic acid, 4-nonylamino-4-
oxoperoxybutyric acid and diperoxydodecanedioic acid. Such
bleaching agents are disclosed in U.S. Patent 4,483,781, U.S.
Patent Application 740,446, European Patent Application
0,133,354 and U.S. Patent 4,412,934. Highly preferred
bleaching agents also include 6-nonylamino-6-oxoperoxycaproic
acid as described in U.S. Patent 4,634,551.
Another category of bleaching agents that can be used
encompasses the halogen bleaching agents. Examples of
hypohalite bleaching agents, for example, include trichloro
isocyanuric acid and the sodium and potassium
dichloroisocyanurates and N-chloro and N-bromo alkane
sulphonamides. Such materials are normally added at 0.5-10~ by
weight of the finished product, preferably 1-5% by weight.
l6
wo 95,03387 2 ~ ~ 7 ~ 6 9 PCT~S94/07069
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.
The hydrogen peroxide releasing agents can be used in
comblnation with bleach activators such as
tetraacetylethylenediamine (TAED), nonanoyloxybenzenesulfonate
(NOBS, described in US 4,412,934), 3,5,-
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. Also suitable activators are
acylated citrate esters (ATC) such as disclosed in Copending
European Patent Application No. 91870207.7.
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.
Other peroxygen bleaches suitable for the present
invention include organic peroxyacids such as percarboxylic
acids.
Bleaching agents other than oxygen bleaching agents are
also known in the art and can be utilized herein. One type of
non-oxygen bleaching agent of particular interest includes
photoactivated bleaching agents such as the sulfonated zinc
and/or aluminum phthalocyanines. These materials can be
deposited upon the substrate during the washing process. Upon
irradiation with light, in the presence of oxygen, such as by
hanging clothes out to dry in the daylight, the sulfonated
l7
WOg5/~387 ~ ~ 61 3 6 PCT~S94/07069
zinc phthalocyanine is activated and, consequently, the
substrate is bleached. Preferred zinc phthalocyanine and a
photoactivated bleaching process are described in U.S. Patent
4,033,718. Typically, detergent compositions will contain
about 0.025% to about 1.25%, by weight, of sulfonated zinc
phthalocyanine.
Other detergent ingredlents that can be included are
detersive enzymes which can be included in the detergent
formulations for a wide variety of purposes including removal
of protein-based, carbohydrate-based, or triglyceride-based
stains, for example, and prevention of refugee dye transfer.
The enzymes to be incorporated include proteases, amylases,
lipases, cellulases, and peroxidases, as well as mixtures
thereof. Other types of enzymes may a-lso be included. They may
be of any suitable origin, such as vegetable, animal,
bacterial, fungal and yeast origin.
Enzymes are normally incorporated at -levels sufficient to
provide up to about 5 mg by weight, more typically about 0.05
mg to about 3 mg, of active enzyme per gram of the
composition.
Suitable examples of proteases are the subtilisins which are
obtained from particular strains of B.subtilis and
B.licheniforms. Proteolytic enzymes suitable for removing
protein-based stains that are commercially available include
those sold under the tradenames Alcalase , Savinase and
Esperase by Novo Industries A/S (Denmark) and Maxatase by
International Bio-Synthetics, Inc. (The Netherlands) and FN-
base by Genencor, Optimase and opticlean by MKC.
Of interest in the category of proteolytic enzymes,
especially for liquid detergent compositions, are enzymes
referred to herein as Protease A and Protease B. Protease A is
described in European Patent Application 130,756. Protease B
is described in European Patent Application Serial No.
87303761.8. Amylases include, for example, -amylases
obtained from a special strain of B.licheniforms, described in
more detail in British Patent Specification No. 1,296,839
(Novo). Amylolytic proteins include, for example, Rapidase,
W095/03387 21 ~ 7 ~ 6 9 PCT~S94/07069
Ma~amyl (International Bio-Synthetics, Inc.) and
Termamyl,(Novo Industries).
The cellulases usable in the present invention include both
bacterial or fungal cellulase. Preferably, they will have a pH
optimum of between 5 and 9.5. Suitable cellulases are
disclosed in U.S. Patent 4,435,307, Barbesgoard et al, which
discloses fungal cellulase produced from Humicola insolens.
Suitable cellulases are also disclosed in GB-A-2.075.028 ; GB-
A-2.095.275 and DE-OS-2.247.832.
Examples of such cellulases are cellulases produced by a
strain of Humicola insolens ~Humicola grisea var. thermoidea),
particularly the Humicola strain DSM 1800, and cellulases
produced by a fungus of Bacillus N or a cellulase 212-
producing fungus belonging to the genus Aeromonas, and
cellulase extracted from the hepatopancreas of a marine
mollusc ~Dolabella Auricula Solander).
Other suitable cellulases are cellulases originated from
Humicola Insulens having a molecular weight of about 50KDa, an
isoelectric point of 5.5 and containing 415 amino acids. Such
cellulase are described in Copending European patent
application No. 93200811.3, filed March 19, 1993.
Especially suitable cellulase are the cellulase having color
care benefits. Examples of such cellulases are cellulase
described in European patent application No. 91202879.2, filed
November 6, 1991 Carezyme ~Novo).
Suitable lipase enzymes for detergent usage include those
produced by microorganisms of the Pseudomonas group, such as
Pseudomonas stutzeri ATCC 19.154, as disclosed in British
Patent 1,372,034. Suitable lipases include those which show a
positive immunoligical cross-reaction with the antibody of the
lipase, produced by the microorganism Pseudomonas fluorescent
IAM 1057. This lipase is available from Amano Pharmaceutical
Co. Ltd., Nagoya, Japan, under the trade name Lipase P
"Amano," hereinafter referred to as "Amano-P".
Especially suitable Lipase are lipase such as M1 Lipase (Ibis)
and Lipolase ~Novo).
Iq
wo gs/~387 ~ ~ 6 ~ 3 6 9 PCT~S94/07069
Peroxidase enzymes are used in combination with oxygen
sources, e.g. percarbonate, perborate, persulfate, hydrogen
peroxide, etc. They are used for "solution bleaching", i.e. to
prevent transfer of dyes of pigments removed from substrates
during wash operations to other substrates in the wash
solution. Peroxidase enzymes are known in the art, and
include, for example, horseradish peroxidase, ligninase, and
haloperoxidase such as chloro- and bromo-peroxidase.
Peroxidase-containing detergent compositions are disclosed,
for example, in PCT Internation Application WO 89/099813 and
in European Patent application EP No. 91202882.6, filed on
November 6, 1991.
In liquid formulations, an enzyme stabilization system is
preferably utilized. Enzyme stabilization techniques for
aqueous detergent compositions are well known in the art. For
example, one technique for enzyme stabilization in aqueous
solutions involves the use of free calcium ions from sources
such as calcium acetate, calcium formate and calcium
propionate. Calcium ions can be used in combination with short
chain carboxylic acid salts, preferably formates. See, for
example, U.S. patent 4,318,818. It has also been proposed to
use polyols like glycerol and sorbitol. Alkoxy-alcohols,
dialkylglycoethers, mixtures of polyvalent alcohols with
polyfunctional aliphatic amines (e.g., such as diethanolamine,
triethanolamine, di-isopropanolamime, etc.), and boric acid or
alkali metal borate. Enzyme stabilization techniques are
additionally disclosed and exemplified in U.S. patent
4,261,868, U.S. Patent 3,600,319, and European Patent
Application Publication No. 0 199 405, Application No.
86200586.5. Non-boric acid and borate stabilizers are
preferred. Enzyme stabilization systems are also described,
for example, in U.S. Patents 4,261,868, 3,600,319 and
3,519,570.
Other suitable detergent ingredients that can be added are
enzyme oxidation scavengers which are described in Copending
European Patent aplication N 92870018.6 filed on January 31,
1992. Examples of such enzyme oxidation scavengers are
ethoxylated tetraethylene polyamines.
WO 95/03387 2 ~ 6 7 3 6 9 PCT/US94/07069
Especially preferred detergent ingredients are combinations
with technologies which also provide 2 type of color care
benefit. Examples of these technologies are cellulase and/or
peroxidases and/or metallo catalysts for color maintance
rejuvenation.
Another optional ingredient is a suds suppressor,
exemplified by silicones, and silica-silicone mixtures.
Silicones can be generally represented by alkylated
polysiloxane materials while silica is normally used in finely
divided forms exemplified by silica aerogels and xerogels and
hydrophobic silicas of various types. These materials can be
incorporated as particulates in which the suds suppressor is
advantageously releasably incorporated in a water-soluble or
water-dispersible, substantially non-surface-active detergent
impermeable carrier. Alternatively the suds suppressor can be
dissolved or dispersed in a liquid carrier and applied by
spraying on to one or more of the other components.
A preferred silicone suds controlling agent is disclosed in
Bartollota et al. U.S. Patent 3 933 672. Other particularly
useful suds suppressors are the self-emulsifying silicone suds
suppressors, described in German Patent Application DTOS 2 646
126 published April 28, 1977. An example of such a compound is
DC-544, commercially available from Dow Corning, which is a
siloxane-glycol copolymer. Especially preferred suds
controlling agent are the suds suppressor system comprising a
mixture of silicone oils and 2-alkyl-alcanols. Suitable 2-
alkyl-alcanols are 2-butyl-octanol which are commercially
available under the trade name Isofol 12 R.
Such suds suppressor system are described in Copending
European Patent application N 92870174.7 filed 10 November,
1992.
Especially preferred silicone suds controlling agents are
described in Copending European Patent application
N92201649.8
Said compositions can comprise a silicone/silica mixture in
combination with fumed nonporous silica such as AerosilR.
WO95/~387 216 ~ 3 6 9 PCT~S94/07069
The suds suppressors described above are normally employed
at levels of from 0.001S- to 2~; by weight of the composition,
preferably from 0.01~ to 1~ by weight.
Other components used in detergent compositions may be
employed, such as soil-suspending agents soil-release agents,
optical brighteners, abrasives, bactericides, tarnish
inhibitors, coloring agents, and non-encapsulated and
encapsulated perfumes.
Antiredeposition and soil suspension agents suitable herein
include cellulose derivatives such as methylcellulose,
carboxymethylcellulose and hydroxyethylcellulose, and homo- or
co-polymeric polycarboxylic acids or their salts. Polymers of
this type include the polyacrylates and maleic anhydride-
acrylic acid copolymers previously mentioned as builders, as
well as copolymers of maleic anhydride with ethylene,
methylvinyl ether or methacrylic acid, the maleic anhydride
constituting at least 20 mole percent of the copolymer. These
materials are normally used at levels of from 0.5% to 10~ by
weight, more preferably from 0.75% to 8%, most preferably from
1% to 6% by weight of the composition.
Preferred optical brighteners are anionic in character,
examples of which are disodium 4,41-bis-(2-diethanolamino-4-
anilino -s- triazin-6-ylamino)stilbene-2:21 disulphonate,
disodium 4, - 41-bis-(2-morpholino-4-anilino-s-triazin-6-
ylaminostilbene-2:21 - disulphonate, disodium 4,41 - bis-(2,4-
dianilino-s-triazin-6-ylamino)stilbene-2:21 - disulphonate,
monosodium 41,411 -bis-(2,4-dianilino-s-triazin-6
ylamino)stilbene-2-sulphonate, disodium 4,41 -bis-(2-anilino-
4-(N-methyl-N-2-hydroxyethylamino)-s-triazin-6-
ylamino)stilbene-2,21 - disulphonate, disodium 4,41 -bis-(4-
phenyl-2,1,3-triazol-2-yl)-stilbene-2,21 disulphonate,
disodium 4,41bis~2-anilino-4-(1-methyl-2-hydroxyethylamino)-s-
triazin-6- ylamino)stilbene-2,21disulphonate and sodium
2(stilbyl-411-(naphtho-11,21:4,5)-1,2,3 - triazole-211-
sulphonate.
2 2
wo 95,03387 2 ~ ~ 7 3 ~ 9 PCT~S94/07069
Other useful polymeric materials are the polyethylene
glycols, particularly those of molecular weight 1000-10000,
more particularly 2000 to 8000 and most preferably about 4000.
These are used at levels of from 0.20~ to 5~ more preferably
from 0.25~ to 2.5% by weiqht. These polymers and the
previously mentioned homo- or co-polymeric polycarboxylate
salts are valuable for improving whiteness maintenance, fabric
ash deposition, and cleaning performance on clay,
proteinaceous and oxidizable soils in the presence of
transition metal impurities.
Soil release agents useful in compositions of the present
invention are conventionally copolymers or terpolymers of
terephthalic acid with ethylene glycol and/or propylene glycol
units in various arrangements. Examples of such polymers are
disclosed in the commonly assigned US Patent Nos. 4116885 and
4711730 and European Published Patent Application No. 0 272
033. A particular preferred polymer in accordance with EP-A-0
272 033 has the formula
3(pEG)43)o.75(poH)o.25[T-po)2.8(T-pEG)o.4]T(
H)0.2s((pEG)43cH3)o.75
where PEG is -(OC2H4)O-,PO is (OC3H6O) and T is (pcOC6H4CO).
Also very useful are modified polyesters as random
copoly~mers of dimethyl terephtalate, dimethyl
sulfoisophtalate, ethylene glycol and 1-2 propane diol, the
end groups consisting primarily of sulphobenzoate and
secondarily of mono esters of ethylene glycol and/or propane-
diol. The target is to obtain a polymer capped at both end by
sulphobenzoate groups, "primarily", in the present context
most of said copolymers herein will be end-capped by
sulphobenzoate groups. However, some copolymers will be less
than fully capped, and therefore their end groups may consist
of monoester of ethylene glycol and/or propane 1-2 diol,
thereof consist "secondarily" of such species.
Z~
WO95/~387 ~ 1 ~ 7 ~ 6 9 PCT~S94/07069
The selected polyesters herein contain about 46~ by weight
of dimethyl terephtalic acid, about 16~ by weight of propane -
1.2 diol, about 10~ by weight ethylene glycol about 13% by
weight of dimethyl sulfobenzoid acid and about 15% by weight
of sulfoisophtalic acid, and have a molecular weight of about
3.000. The polyesters and their method of preparation are
described in detail in EPA 311 342.
The detergent compositions according to the invention can be
in liquid, paste, gels 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/l; 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 "concentrated 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. Typically, the water content
of the concentrated liquid detergent is less than 30%, more
preferably less than 20%, most preferably less than 10% by
weight of the detergent compositions.
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.
The process comprises contacting fabrics with a laundering
solution as hereinbefore described.
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 95C and higher
2 ~
WOgS/~387 216 7 3 6 ~ `: PCT~S94/07069
temperatures. The pH of the treatment solution is preferably
from 7 to 11, especially from 7.5 to 10.5.
The process and compositions of the invention can also be
used as detergent additive products.
Such additive products are intended to supplement or boost the
performance of conventional detergent compositions.
The detergent compositions according to the present invention
include compositions which are to be used for cleaning
substrates, such as fabrics, fibers, hard surfaces, skin etc.,
for example hard surface cleaning compositions (with or
without abrasives), laundry detergent compositions, automatic
and non automatic dishwashing compositions.
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.
The overall detergency performance of the compositions
was assessed by measuring the dye transfer inhibiting
performance
and softening performance.
The extent of dye transfer from different colored fabrics
was studied using a launder-o-meter test that simulates a 30
min wash cycle. The launder-o-meter beaker contains a
lOcmxlOcm piece of the colored fabric and a multifiber swatch
which is used as a pick-up tracer for the bleeding dye. The
multifiber swatch consists of 6 pieces (1.5cmx5cm each) of
different material (polyacetate, cotton, polyamide, polyester,
wool and orlon) which are sewn together. The hardness of the
water was -2mM Calcium and the composition concentration was
0.7% in the wash liquor.
The extent of dye transfer is assessed by a Hunter Colour
measurement. The Hunter Colour system evaluates the colour of
a fabric sample in terms of the DE value which represents the
change in the Hunter L, a, b, values which are determined by
~S
W095/~387 2 ~ ~ 7 3 6 9 PCT~S94/07069
ref.lecting spectrophotometer. The DE value lS defined by the
following equation:
DE = I(af -ai)2 + (bf-bi)2 + (Lf-Li)2ll/2
where the subscripts i and f refer to the Hunter value before
and after washing in the presence of the bleeding fabric,
respectively. The least significant difference is 1 at 95
confidence level.
The softening performance was measured by a launderometer
test. The test procedure was as follows : 3.5 kg of clean
fabric laundry loads were washed in an automatic drum washing
machine Miel 423 at 60C. The hardness of the water was 2mM
Calcium and the composition concentration was 0.7% in the wash
liquor.
A bundle of soiled fabrics containing fabrics which were
stained with particulate soil was split into two parts and
each part was washed in with a detergent composition
containing a N-vinylimidazole N-vinylpyrrolidone copolymer.
Comparative cleaning assessment was done by expert judges
using a scale of 0 to 4 panel-score-units (PSU). In this scale
0 is given for no difference and 4 is given for maximum
difference. Softening was assessed after 4 wash cycles.
A granular detergent composition according to the present
invention is prepared, having the following compositions :
% by weight of the total detergent composition
Linear alkyl benzene sulphonate 13.70
Tallow alkyl sulphate 5.9
C4s alcohol 7 times ethoxylated 4.00
Trisodium citrate 5.00
Zeolite 26.00
Maleic acid actylic acid copolymer 4.9
Diethylenetriaminepentamethylene 0.6
WO95/03387 ~ 3 6 9 ~ PCT~S94/07069
Phosphonic acid
Protease 1.5
carboxymethylcellulose 1.5
suds supressor (silicone) 0.8
Table I
EXAMPLE I/II :
Example I and II demonstrate the dye transfer inhiblting
performance of the polyamine N-oxide containing polymers in
combination with the clays versus dye transfer inhibiting
compositions containing (PVP) polyvinylpyrrolidone and clay.
Experimental conditions :
pH = 8.5
Wash Temperature : 40C
EXAMPLE I (A/B/C/D)
A : A detergent composition according to Table I which
contains no Clay softening system and no PVP.
B : A detergent composition according to Table I which
contains 12.5 % of a clay softening system and no PVP.
C : A detergent composition according to Table I containing
1.5% of PVP (polyvinylpyrrolidoneJ which has an average
molecular weight of about 30,000 and no clay.
D : A detergent composition according to Table I containing
1.5% of PVP which has an average molecular weight of about
30,000 and 12.5 % of a clay softening system
EXAMPLE II (A/B/C/D)
A : A detergent composition according to Table I which
contains no Clay softening system and no PVNO (poly(4-
vinylpyridine-N-oxide).
~ 7
WO9S/~387 2 ~ ~ 7 3 6 9 PCT~S94/07069
B : A detergent composition according to Table I which
contains 12.5 ~ of a clay softening system and no PVNO
~poly(4-vinylpyridine-N-oxide).
C : A detergent composition according to Table I containing 10
ppm of PVNO (poly(4-vinylpyridine-N-oxide)) which has an
average molecular weight of about 30,000 and an amine to amine
N-oxide ratio of 1:5 (measured by NMR) and no clay.
D : A detergent composition according to Table I containing 10
ppm of PVNO (poly(4-vinylpyridine-N-oxide)) which has an
average molecular weight of about 30,000 and an amine to amine
N-oxide ratio of 1:5 (measured by NMR) and 12.5 % of a clay
softening system
Results :
D(DE) values (DE(test)-DE(reference)) for the cotton pick-up
tracer.(reference respectively IA and IIA (Bleeding fabric
color : Direct Brown 90 ;
Bleeding fabric composition: 100% cotton) and PSU values
I8 IC ID IIB IIC IID
D(DE) 0 14 0 0 14 14
PSU 2 0 0 2 0 2
The above results demonstrate that the combination of the
polyamine-N-oxide containing polymers and clay provides both
excellent dye transfer inhibition and softening performance.
EXAMPLE III (A/B/C)
A liquid detergent composition according to the present
invention is prepared, having the following compositions :
2g
W095/~387 2 ~ 6 7 3 6 9 PCT~S94/07069
% by weight of the total detergent composition
A B C
Linear alkylbenzene sulfonate 10 - -
Polyhydroxy fatty acid amide - 5
Al kyl al koxyl ated sulfate - - 9
Alkyl sulphate 4 8 4
Fatty alcohol (C12-C1s) ethoxylate 12 12 12
Fatty acid 10 10 10
Oleic acid 4 4 4
Citric acid
Diethylenetriaminepentamethylene 1.5 1.5 1.5
Phosphonic acid
NaOH 3 4 3 4 3-4
Propanediol 1.5 1.5 1.5
Ethanol 10 10 10
Ethoxylated tetraethylene pentamine0.7 0.7 0.7
Poly(4-vinylpyridine)-N-oxide 0-1 0-1 0-1
Termamyl R 300 KNU/g 0.1 0.1 0.1
Carezyme R 5000 CE W /g 0.020.02 0.02
Protease 40 mg/g 1.8 1.8 1.8
Lipolase R 100 KLU/g 0.140.14 0.14
Endoglucanase A 5000 CE W /g 0.4 0.4 0.4
Suds supressor (ISOFOLr) 2.5 2.5 2.5
H22 _ _ 7 5
clay 4 4 4
Minors up to 100
EXAMPLE IV (A/B/C)
A compact granular detergent composition according to the
present invention is prepared, having the following
formulation:
W095/~387 2 1 6 7 3 6 9 PCT~S94/07069
% by weight of the total detergent composition
A B C D E
Linear alkyl benzene sulphonate 11.40 - - - 5
Polyhydroxy fatty acid amide - 10 - 5 5
Alkyl alkoxylated sulfate - - 9 9 g
Tallow alkyl sulphate 1.80 1.80 1.80 4 4
C4s alkyl sulphate 3.00 3.00 3.00
C4s alcohol 7 times ethoxylated 4.00 4.00 4.00
Tallow alcohol 11 times ethoxy- 1.80 1.80 1.80 5 5
lated
Dispersant 0.07 0.07 0.07 0.07 0.07
Silicone fluid 0.80 0.80 0.80 0.80 0.80
Trisodium citrate14.00 14.00 14.00 14.00 14.00
Citric acid 3.00 3.00 3.00 3.00 3.00
Zeolite 32.50 32.50 32.50 32.50 32.50
Maleic acid acrylic acid co- 5.00 5.00 5.00 5.00 5.00
polymer
Cellulase (active protein) 0.03 0.03 0.03 0.03 0.03
Alkalase/BAN 0.60 0.60 0.60 0.60 0.60
Lipase 0.36 0.36 0.36 0.36 0.36
Sodium silicate 2.00 2.00 2.00 2.00 2.00
Sodium sulphate 3.50 3.50 3.50 3.50 3.50
Poly(4-vinylpyridine)-N-oxide 0-1 0-1 0-1 0-1 0-1
Perborate - - - 15
TAED _ 5 5
Percarbonate - - - 20
Clay 10 10 10 10 10
Minors up to 100
The above compositions (Example II (A/B/C) and III
(A/B/C)) were very good at displaying excellent softening ,
cleaning and detergency performance with outstanding color-
care performance on colored fabrics and mixed loads of colored
and white fabrics.
3o
