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WO1996037598A1 - Inhibiteurs de transfert de colorants pour detergents contenant des agents de blanchiment - Google Patents

Inhibiteurs de transfert de colorants pour detergents contenant des agents de blanchiment Download PDF

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Publication number
WO1996037598A1
WO1996037598A1 PCT/EP1996/002113 EP9602113W WO9637598A1 WO 1996037598 A1 WO1996037598 A1 WO 1996037598A1 EP 9602113 W EP9602113 W EP 9602113W WO 9637598 A1 WO9637598 A1 WO 9637598A1
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polymers
contain
weight
water
detergents
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German (de)
English (en)
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Dieter Boeckh
Hans-Ulrich JÄGER
Angelika Funhoff
Christian Schade
Stefan Stein
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BASF SE
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • C11D3/3776—Heterocyclic compounds, e.g. lactam

Definitions

  • the invention relates to the use of water-insoluble, crosslinked polymers as an additive for detergents to prevent dye transfer during the washing process, and to detergents which contain these polymers.
  • EP-A-0 635 565 and EP-A-0 635 566 disclose the use of water-soluble vinylimidazole / vinylpyrrolidone copolymers as dye transfer inhibitors in different detergent formulations.
  • the water-soluble dye transfer inhibitors form complexes in the wash liquor with the dyes which have been detached from dyed textiles. This practically prevents the dyeing of non-dyed textile materials when washing them together with dyed textile materials.
  • dye transfer inhibitors have so far been largely limited to special detergents which are commercially available as color detergents. To protect the color of the textiles to be washed, such detergents usually do not contain any bleach. Most heavy-duty detergents also contain no color transfer inhibitors because in practice the prevailing opinion is that the dye detached from the textiles in the wash liquor is destroyed by the bleaching system. In addition, many polymeric dye transfer inhibitors in detergent formulations containing bleach are unsuitable from the outset because they are oxidized by the bleaching agents and thereby lose their effectiveness. Water-soluble dye transfer inhibitors also contribute to the detachment of dyes from dyed textiles at the high temperatures customary in full washing and lead to an increased fading of the colors of the washed textiles.
  • the object of the present invention is to provide dye transfer inhibitors which are suitable for detergents containing bleaching agents and which are well compatible with the bleaching agent and which practically do not assist the dye detachment from the dyed textiles.
  • R, R 1 and R 2 are the same or different and stand for H, Ci to C alkyl or phenyl, or contain units of 4-vinylpyridine-N-oxide in copolymerized form, in finely divided form, at least 90% by weight % of the polymers have a particle size of 0.1 to 500 ⁇ m, as an additive for detergents which contain a bleaching agent and at most 8% by weight of alkylbenzenesulfonates, to prevent dye transfer during the washing process.
  • the invention also relates to detergents based on anionic and nonionic surfactants with an alkylbenzenesulfonate content of at most 8% by weight, which, based in each case on the formulation,
  • R, R 1 and R 2 are the same or different and represent H, Ci to C 4 alkyl or phenyl, or contain units of 4-vinylpyridine-N-oxide in copolymerized form, in finely divided form, at least 90 %
  • By weight of the polymers have a particle size of 0.1 to 500 ⁇ m
  • detergents which additionally contain 0.1 to 15% by weight of a bleach activator.
  • Water-insoluble crosslinked polymers have hitherto not been used as dye transfer inhibitors for reasons of sorption kinetics. Surprisingly, it has now been found that water-insoluble crosslinked polymers which have a particle size of 0.1 to 500 ⁇ m are excellent dye transfer inhibitors in bleach-containing detergents with a content of at most 8% by weight of alkylbenzenesulfonates.
  • Suitable water-insoluble, crosslinked polymers can be obtained, for example, by using 1-vinylpyrrolidone and / or 1-vinylimidazoles of the formula as monomers of group (a)
  • R, R X and R 2 are the same or different and for H, C_ . - Are to C 4 alkyl or phenyl used.
  • the substituents R, R 1 and R 2 are preferably H, CH 3 and C 2 H 5 .
  • Monomers of group (a) are, for example, 1-vinylimidazole, 2-methyl-1-vinylimidazole, 2-ethyl-1-vinylimidazole, 2-propyl-1-vinylimidazole, 2-butyl-1-vinylimidazole, 2,4-dimethyl l-vinylimidazole, 2,5-dimethyl-l-vinylimidazole, 2-ethyl-4-methyl-l-vinylimidazole, 2-ethyl-5-methyl-l-vinylimidazole, 2,4,5-trimethyl-l- vinyl imidazole,
  • 1-Vinylimidazole, 1-vinylpyrrolidone and 2-methyl-1-vinylimidazole are very particularly preferred.
  • the polymers contain the monomers of group (a) preferably in copolymerized quantities in amounts of 40 to 99.999% by weight.
  • the monomers of group (a) can optionally be copolymerized with the monomers of group (b).
  • (meth) acrylic acid esters as monomer (b), which are derived from amino alcohols. These monomers contain a basic nitrogen atom. They are used either in the form of the free bases or in neutralized or quaternized form. Further preferred monomers are monomers which contain a basic nitrogen atom and an amide group in the molecule.
  • N, N-dialkylaminoalkyl (meth) acrylates for example dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl acrylate, diethylaminoethyl methacrylate, dimethylaminopropyl acrylate, dimethylaminopropyl methacrylate, diethylamino propyl acrylate and diethyl aminopropyl acrylate.
  • Basic monomers which additionally th one amide group in the molecule enthal ⁇ are N, N'-dialkylaminoalkyl (meth) acrylamides, such as N, N-di-C ⁇ - to C 3 -alkylamino-C 2 - to C ⁇ alkyl (meth ) acrylamides, such as, for example, dimethylaminoethyl acrylamide, dimethylaminoethyl methacrylamide, diethylaminoethyl acrylamide, diethylaminoethyl methacrylamide, dimethylaminopropylacrylamide and dimethylamino propyl methacrylamide.
  • N, N'-dialkylaminoalkyl (meth) acrylamides such as N, N-di-C ⁇ - to C 3 -alkylamino-C 2 - to C ⁇ alkyl (meth ) acrylamides, such as, for example, dimethylaminoethyl
  • Other monomers which have a basic nitrogen atom are 4-vinylpyridine, 2-vinylpyridine, diallyldi- (Ci to Ci 2 ⁇ alkyl) ammonium compounds and diallyl-Ci to -C 2 alkylamines.
  • the basic monomers are used in the copolymerization in the form of the free bases, the salts with organic or inorganic acids or in quaternized form.
  • alkyl halides with 1 to 18 carbon atoms in the alkyl group are suitable, for example methyl chloride, ethyl chloride or benzyl chloride.
  • the quaternization of the nitrogenous basic Monomers can also be carried out by reaction with dialkyl sulfates, in particular with diethyl sulfate or dimethyl sulfate.
  • dialkyl sulfates in particular with diethyl sulfate or dimethyl sulfate.
  • quaternized monomers are trimethylammonium ethyl methacrylate chloride, dimethyl ethyl ammonium ethyl methacrylate ethyl sulfate and dimethyl ethyl ammonium ethyl methacrylamide ethyl sulfate.
  • 1-vinylimidazolium compounds which are quaternized, for example, with C 1 -C 4 -alkyl halides, dialkyl sulfates or benzyl chloride or converted into the salt form with an acid.
  • Such monomers can, for example, using the general formula
  • H2C CH N ⁇ NR 3 ⁇ ® (II),
  • JC® is an anion
  • the anion can be a halogen ion, an alkyl sulfate anion or the rest of an inorganic or organic acid.
  • Examples of quaternized 1-vinylimidazoles of the formula II are 3-methyl-1-vinylimidazolium chloride, 3-benzyl-1-vinylimidazolium chloride or 3-ethyl-1-vinylimidazolium ethyl sulfate.
  • the polymers which contain monomers (a) and optionally 1-vinylimidazole or basic monomers (b) can also be partially quaternized by reaction with customary quaternizing agents such as dimethyl sulfate or methyl chloride. If the monomers (b) are used, they are e.g. Contain up to 50 mol% in the crosslinked copolymers in copolymerized form.
  • the water-insoluble crosslinked polymers are prepared directly by polymerizing the monomers (a) and, if appropriate, (b) in the presence of monomers from group (c). These are monomers which contain at least 2 monoethylenically unsaturated, non-conjugated double bonds in the molecule. Compounds of this type are usually used as crosslinking agents in polymerization reactions.
  • Suitable crosslinkers of this type are, for example, acrylic esters, methacrylic esters, allyl ethers or vinyl ethers of at least dihydric alcohols.
  • the OH groups of the underlying alcohols can be wholly or partially etherified or esterified; however, the crosslinkers contain at least two ethylenically unsaturated groups.
  • Examples of the underlying alcohols are dihydric alcohols such as 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol , But-2-en-l, 4-diol, 1,2-pentanediol, 1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,10-decanediol, 1,2-dodecanediol, 1 , 12-dodecanediol, neopentyl glycol, 3-methylpentane-l, 5-diol, 2, 5-dimethyl-l, 3-hexanediol, 2,2,4-trimethyl-l, 3-pentanediol, 1,2-cyclohexan
  • Propylene oxide can also block copolymers of ethylene oxide or he propylene oxide or copolymers which contain ethylene oxide and propylene oxide groups incorporated.
  • Examples of underlying alcohols with more than two OH groups are trimethylolpropane, glycerol, pentaerythritol, 1,2,5-pentanetriol, 1,2,6-hexanetriol, triethoxycyanuric acid, sorbitan, sugars such as sucrose, glucose, mannose.
  • the polyhydric alcohols can of course also be used as the corresponding ethoxylates or propoxylates after reaction with ethylene oxide or propylene oxide.
  • crosslinkers are the vinyl esters or the esters of monohydric, unsaturated alcohols with ethylenically unsaturated C 3 - to C ⁇ - carboxylic acids, for example acrylic acid, methacrylic acid, itaconic acid, maleic acid or fumaric acid.
  • suitable crosslinkers are allyl alcohol, l-buten-3-ol, 5-hexen-l-ol, l-octen-3-ol, 9-decen-l-ol, dicyclopentenyl alcohol, 10-undecen-l-ol, cinnamon alcohol , Citronellol, crotyl alcohol or cis-9-octa-decen-1-ol.
  • the monohydric, unsaturated alcohols can also be esterified with polybasic carboxylic acids, for example malonic acid, tartaric acid, trimellitic acid, phthalic acid, terephthalic acid, citric acid or succinic acid.
  • polybasic carboxylic acids for example malonic acid, tartaric acid, trimellitic acid, phthalic acid, terephthalic acid, citric acid or succinic acid.
  • crosslinkers are esters of unsaturated carboxylic acids with the polyhydric alcohols described above, for example oleic acid, crotonic acid, cinnamic acid or 10-undecenoic acid.
  • straight-chain or branched, linear or cyclic, aliphatic or aromatic hydrocarbons which have at least two double bonds which must not be conjugated to aliphatic hydrocarbons, for example Divinylbenzene, divinyltoluene, 1,7-octadiene, 1,9-decadiene, 4-vinyl-l-cyclohexene, trivinylcyclohexane or polybutadienes with molecular weights from 200 to 20,000.
  • Acrylic acid amides, methacrylic acid amides and N-allyl amines are also suitable as crosslinking agents of at least divalent amines.
  • Such amines are, for example, 1,2-diaminomethane, 1,2-diaminoethane, 1,3-diaminopropane, 1,4-diaminobutane, 1,6-diaminohexane, 1,12-dodecanediamine, piperazine, diethylenetriamine or isophoronediamine.
  • the amides of allylamine and unsaturated carboxylic acids such as acrylic acid, methacrylic acid, itaconic acid, maleic acid, or at least dibasic carboxylic acids, as described above, are also suitable.
  • N-vinyl compounds of urea derivatives at least divalent amides, cyanurates or urethanes, for example urea, ethylene urea, propylene urea or tartaric acid diamide.
  • crosslinkers are divinyldioxane, tetraallylsilane or tetravinylsilane. Mixtures of the aforementioned compounds can of course also be used.
  • the insoluble polymers preferably contain N, N'-divinylethylene urea in copolymerized form as crosslinking agent.
  • the water-insoluble crosslinked polymers contain the monomers of group (c), for example in amounts of 0.001 to 10, preferably 0.1 to 10, mol% in copolymerized form.
  • Preferred polymers contain polymers of 1-vinylpyrrolidone, 1-vinylimidazole and / or 2-methyl-1-vinylimidazole which are crosslinked with N, N-divinylethylene urea.
  • the monomers are usually polymerized using free-radical initiators, generally in an inert gas atmosphere.
  • Hydrogen-peroxide or inorganic persulfates can be used as free-radical initiators, as can organic compounds of the peroxide, peroxiester, percarbonate or azo type, such as, for example, dibenzoyl peroxide, di-t-butyl peroxide, t-butyl hydroperoxide, dilauroyl peroxide, t-butyl per- pivalate, t-amylperpivalate, t-butylperneodecanoate, 2,2'-azobis (2-amidinopropane) dihydrochloride, 4,4'-azobis (4-cyanovaleric acid), 2,2'-azobis [2- (2nd -imidazolin-2-yl) propane] dihydrochloride, 2,2'-azobis (2,4-dimethylvaleronitrile), 2,2'-azobisisobuty
  • suitable polymerization processes are emulsion and reverse emulsion polymerization.
  • the suspension polymerization, the reverse suspension polymerization, the precipitation polymerization and the popcorn polymerization are suitable, which are distinguished by their ease of implementation and in which the polymerization process can be controlled in such a way that the polymer is obtained directly in finely divided form.
  • the monomers are dissolved in an aqueous salt solution, e.g. an aqueous sodium sulfate solution, dispersed into droplets by stirring and by adding a aqueous salt solution, e.g. an aqueous sodium sulfate solution, dispersed into droplets by stirring and by adding a aqueous salt solution, e.g. an aqueous sodium sulfate solution, dispersed into droplets by stirring and by adding a
  • Free radical initiator polymerized Free radical initiator polymerized.
  • Protective colloids, inorganic suspending agents or emulsifiers can be used to stabilize the dispersed monomer droplets and later the suspended polymer particles.
  • the properties of the polymers can be significantly influenced by adding so-called pore formers such as ethyl acetate, cyclohexane, n-pentane, n-hexane, n-octane, n-butanol, i-decanol, methyl ethyl ketone or i-propyl acetate.
  • the particle size can e.g. are influenced by the type and concentration of dispersing agent and by the selection of the stirrer and the stirring speed.
  • the suspension polymer is isolated by filtration or centrifugation, washed thoroughly, dried and, if necessary, ground into particles with a size of less than 500 ⁇ m. Grinding can also take place when wet. If the polymers are obtained in the form of fine beads, it is a bead polymerization.
  • the monomers are dissolved in water and this phase is suspended and polymerized in an inert organic solvent, for example cyclohexane.
  • an inert organic solvent for example cyclohexane.
  • Protective colloids or emulsifiers are advantageously added to the system.
  • the water can e.g. removed by azeotropic distillation and the product isolated by filtration.
  • the precipitation polymerization is based on the use of solvents or solvent mixtures in which the monomers to be polymerized dissolve, but not the resulting polymer.
  • the polymer which is insoluble or has only limited solubility, precipitates out of the reaction mixture during the polymerization. You get
  • Dispersions which can be stabilized if necessary by adding dispersants.
  • Suitable solvents are, for example, n-hexane, cyclohexane, n-heptane, diethyl ether, t-butyl methyl ether, acetone, methyl ethyl ketone, diethyl ketone, ethyl and methyl acetate, hexan-1-ol and octan-1-ol.
  • the precipitation polymers are worked up by filtering, washing, drying and, if necessary, grinding or classifying.
  • the monomers are polymerized in the absence of solvents or diluents.
  • a special process for producing crosslinked polymers is the so-called popcorn polymerization or proliferating polymerization (Encyclopedia of Polymer Science and Engineering, Vol. 13, pp. 453-463, 1988). It can be carried out as precipitation polymerization or as bulk polymerization. The use of a radical initiator can be partially dispensed with here. The addition of crosslinkers is sometimes not necessary.
  • crosslinked polymers of the gel type can also be obtained by post-crosslinking dissolved polymers, e.g. with peroxides.
  • water-soluble polymers of 1-vinylpyrrolidone and / or 1-vinylimidazoles of the formula I i.e. homo- and copolymers which can be prepared by polymerizing at least one monomer of group (a) alone) by subsequent crosslinking with e.g. Peroxides or hydroperoxides or by exposure to high-energy rays, e.g. Convert UV, ⁇ or electron beams into water-insoluble cross-linked polymers.
  • Polymerization regulators which contain sulfur in bound form are preferred.
  • Compounds of this type are, for example, sodium disulfite, sodium dithionite, diethanol sulfide, ethylthioethanol, thiodiglycol, di-n-hexyldisulfide, di-n-butyl sulfide, 2-mercaptoethanol, 1,3-mercaptopropanol, ethylthioglycolate, mercaptoacetic acid and thioglycerol.
  • water-insoluble, crosslinked polymers which contain 4-vinylpyridine-N-oxide (formally) in copolymerized form is carried out by crosslinking copolymerization of 4-vinylpyridine and subsequent N-oxidation of the pyridine ring with, for example, peracetic acid prepared in situ.
  • the water-insoluble crosslinked polymers are isolated in the customary manner and, if necessary, ground to particles which, in the dry state (moisture content up to a maximum of 2% by weight), have at least 90% by weight of a particle size of 0.1 to 5,500 ⁇ m, preferably have 0.1 to 250 and in particular from 0.1 to 100 ⁇ m.
  • the particle size is measured on dried polymers using vibrating sieve analysis. For the range 0.1 to 10 50 ⁇ m, laser light diffraction is additionally used on particles dispersed in air or in cyclohexane (no swelling agent) (Master Sizer, Malvern Instruments GmbH).
  • the crushing can be done not only by dry grinding but of course also by wet grinding.
  • the crosslinked products which often have an irregular shape, can, if desired, be divided into different grain classes by different classification methods (sieving, sifting, hydroclassification).
  • the water-insoluble crosslinked polymers 20 are in finely divided form, at least 90% by weight of the polymers having a particle size of 0.1 to 500 ⁇ m, as an additive for detergents which contain a bleaching agent and at most 8% by weight of alkyl sulfonates or which are preferably free of alkyl sulfonates, used to prevent dye transfer during the washing process.
  • the detergents contain the water-insoluble, crosslinked polymers to be used according to the invention in amounts of 0.1 to 10, preferably 0.25 to 1.5% by weight.
  • the detergents according to the invention contain anionic and / or nonionic surfactants.
  • the surfactant content in the detergents is, for example, 2 to 50, preferably 8 to 30,% by weight. All of them come in detergent formulations as anionic surfactants
  • alkylbenzenesulfonates may be present in an amount of at most 8% by weight, based on the detergent formulations.
  • the detergent formulations according to the invention are preferably free from alkylbenzene
  • Suitable anionic surfactants are, for example, fatty alcohol sulfates of fatty alcohols having 8 to 22, preferably 10 to 18 carbon atoms, for example Cg to Cn alcohol sulfates, C 2 to Ci 3 alcohol sulfates, cetyl sulfate, myristyl sulfate, palmityl sulfate, stearyl sulfate and tallow fatty alcohol sulfate.
  • Other suitable fatty alcohol sulfates of fatty alcohols having 8 to 22, preferably 10 to 18 carbon atoms, for example Cg to Cn alcohol sulfates, C 2 to Ci 3 alcohol sulfates, cetyl sulfate, myristyl sulfate, palmityl sulfate, stearyl sulfate and tallow fatty alcohol sulfate.
  • Other suitable anionic surfactants are, for example, fatty alcohol sulfates of fatty alcohols having 8 to
  • anionic surfactants are sulfated, ethoxylated fatty alcohols.
  • Compounds of this type are prepared, for example, by first preferably using a Cs to C2 2 - » Cio to cis alcohol alkoxylated and the alkoxylation product then sulfated.
  • a Cs to C2 2 - » Cio to cis alcohol alkoxylated preferably ethylene oxide
  • the alkoxylation of the fatty alcohols can be carried out with propylene oxide alone and ge optionally butylene oxide.
  • au ⁇ ßerdem such alkoxylated fatty alcohols containing ethylene oxide and butylene oxide units
  • the alkoxylated fatty alcohols may also contain ethylene oxide and propylene oxide units in the form of blocks or in statistical distribution.
  • Suitable nonionic surfactants are, for example, alkoxylated C ⁇ to C 22 alcohols.
  • the alkoxylation can be carried out using ethylene oxide, propylene oxide and / or butylene oxide. All alkoxylated alcohols which contain at least two molecules of an alkylene oxide mentioned above can be used as the surfactant.
  • block polymers of ethylene oxide, propylene oxide and / or butylene oxide come into consideration or addition products which contain the alkylene oxides mentioned in a statistical distribution. 2 to 50, preferably 3 to 20, moles of at least one alkylene oxide are used per mole of alcohol.
  • ethylene oxide is used as the alkylene oxide.
  • the alcohols preferably have 10 to 18 carbon atoms.
  • alkyl polyglucosides with 8 to 22, preferably 10 to 18 carbon atoms in the alkyl chain. These compounds contain 1 to 20, preferably 1.1 to 5, glucoside units.
  • N-alkyl glucamides with 8 to 22 C atoms in the alkyl chain and N-acyl sarcosinates, the acyl groups of which are derived from C ⁇ to C 22 carboxylic acids.
  • the detergents are preferably in powder form. They can either contain only one class of the above-mentioned surfactants or else a mixture of several surfactants.
  • the content of alkyl benzene sulfonates in the detergents is at most 8, preferably at most 4,% by weight. Powdered detergents which are free of alkylbenzenesulfonates are particularly preferred.
  • the above-mentioned anionic surfactants can be used in the form of the free acids or their water-soluble alkali and ammonium salts.
  • the sodium salts of alkyl sulfonic acids or alcohol sulfates are particularly preferred.
  • the total surfactant content of the detergents is, for example, 2 to 50, preferably 3 to 40,% by weight.
  • the powder detergents according to the invention also contain a bleach.
  • a bleach This should be understood to mean all active oxygen-releasing bleaching agents commonly used in detergents, for example perborates and percarbonates in the form of their alkali metal salts, preferably their sodium salts.
  • Other suitable bleaching agents are inorganic and organic peracids in the form of the alkali or magnesium salts or optionally also in the form of the free ones
  • the bleaching agents are in amounts of 5 to 30, preferably 10 to
  • the detergents according to the invention can additionally contain 0.1 to 15, preferably 1 to 6% by weight of at least one bleach activator.
  • Suitable bleach activators are for example
  • acylamines such as tetraacetylethylenediamine, tetraacetylglycoluril, N, N-diacetyl-N, N-dimethylurea and 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine.
  • Another class of bleach activators are acylated lactams, such as acetylcaprolactam, octanoylcaprolactam and benzoylcaprolactam.
  • Substituted phenol esters of carboxylic acids such as sodium acetoxybenzenesulfonate, sodium octanoylbenzenesulfonate and sodium nonanoylbenzenesulfonate are also suitable as bleach activators.
  • Other suitable bleach activators are acylated sugars such as pentaacetyl glucose, anthranil derivatives such as 2-methyl
  • anthranil or 2-phenylanthranil enol esters such as isopropenyl acetate, oxime esters such as O-acetylacetonoxime and carboxylic acid anhydrides such as phthalic anhydride or acetic anhydride.
  • Bleach activators which are preferably used are tetraacetylethylenediamine, sodium nonanylbenzenesulfonate and 2-phenylanthranil.
  • the bleaching system of the powder detergents can optionally contain bleaching catalysts.
  • Suitable bleaching catalysts are, for example, quaternized imines and sulfone imines, which are described, for example, in US Pat. No. 5,360,561,
  • bleaching catalysts are manganese complexes, which are described for example in WO-A-94/21777. If used in the detergents, such compounds are used at most in amounts of up to 0.1%. If any bleaching catalysts in the
  • powder detergents are incorporated, so they are in the detergent formulations in amounts up to at most 1.5, preferably up to at most 0.5 wt .-%.
  • a heavy-duty detergent that contains a bleaching system can have the following composition, for example:
  • At least one organic cobuilder preferably a copolymer of acrylic acid and maleic acid with a molecular weight of 70,000 and / or polyaspartic acid,
  • a bleaching catalyst 0 to 1, preferably up to at most 0.5% by weight of a bleaching catalyst.
  • the full detergents containing bleaching systems described above can optionally contain other customary additives. These include, for example, adjusting agents such as sodium sulfate, complexing agents, phosphonates, optical brighteners, enzymes, perfume oils, foam suppressants, graying inhibitors and soil release polymers.
  • adjusting agents such as sodium sulfate, complexing agents, phosphonates, optical brighteners, enzymes, perfume oils, foam suppressants, graying inhibitors and soil release polymers.
  • the basic composition of mild detergent according to the invention with bleaching systems is shown in Table 1 as an example.
  • the figures in Table 1 mean% by weight.
  • Zeolite A 25.0 25.0 18.0 30.0 15.0
  • Table 2 contains the washing conditions for the examples of color transfer inhibition.
  • the composition of the detergent used is given in Table 1.
  • the staining of the test fabric was measured photometrically.
  • the respective color strengths of the stains were determined from the reflectance values measured on the individual test fabrics according to the method described in A. Kud, Seifen, ⁇ le, Fette, Wachsen, Volume 119, pp. 590-594, (1993). From the color strengths for the test with the respective test substance, the color strength for the test without test substance and the color strength of the test fabric before washing, the color transfer inhibiting effect of the test substance is determined in% using the method described in the above literature reference (color transfer inhibition is thereby determined) treated analogously to graying inhibition).
  • the addition of the polymers to be used according to the invention also has no negative influence on the bleaching system. In washing tests with formulation II at temperatures of 20 to 60 ° C., no deterioration in the bleaching result was found in test washing of fabrics which were contaminated with tea, red wine or grass.

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Abstract

L'invention concerne l'emploi de polymères réticulés insolubles dans l'eau, contenant des motifs de 1-vinylpyrrolidone et/ou de 1-vinylimidazoles de formule (I) dans laquelle R, R1 et R2 sont identiques ou différents et représentent H, alkyle C¿1?-C4 ou phényle, ou bien des motifs de 4-vinylpyridin-N-oxyde incorporés par polymérisation, sous forme de fines particules, au moins 90 % en poids des polymères présentant une grosseur particulaire de 0,1 à 500 νm. Ces polymères réticulés s'utilisent comme additifs pour des détergents contenant un agent de blanchiment et possédant une teneur en sulfonates de benzène d'alkyle n'excédant pas 8 % en poids, pour empêcher le transfert de colorants lors du lavage. Sont également décrits des détergents contenant, à raison de 0,05 à 10 % en poids, des polymères réticulés insolubles dans l'eau.
PCT/EP1996/002113 1995-05-26 1996-05-17 Inhibiteurs de transfert de colorants pour detergents contenant des agents de blanchiment Ceased WO1996037598A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19519337.7 1995-05-26
DE1995119337 DE19519337A1 (de) 1995-05-26 1995-05-26 Verwendugn von wasserunlöslichen, vernetzten Polymerisaten als Additiv für Waschmittel und Waschmittel, die diese Polymerisate enthalten

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Publication number Priority date Publication date Assignee Title
US6887524B2 (en) * 2000-10-13 2005-05-03 The Procter & Gamble Company Method for manufacturing laundry additive article
US7256166B2 (en) 2002-01-18 2007-08-14 The Procter & Gamble Company Laundry articles

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DE4244386A1 (de) * 1992-12-29 1994-06-30 Basf Ag Vinylpyrrolidon- und Vinylimidazol-Copolymerisate, Verfahren zur ihrer Herstellung und ihre Verwendung in Waschmitteln
EP0635565A1 (fr) * 1993-07-23 1995-01-25 The Procter & Gamble Company Compositions détergentes empêchant le transfert de colorant
DE4341072A1 (de) * 1993-12-02 1995-06-08 Basf Ag Verfahren zur Herstellung von Polymerisaten von Alkyl-1-vinylimidazolen und ihre Verwendung
DE4421179A1 (de) * 1994-06-17 1995-12-21 Basf Ag Farbstoffübertragungsinhibitoren für Wasch- und Reinigungsmittel
EP0719856A1 (fr) * 1994-12-29 1996-07-03 The Procter & Gamble Company Compositions adoucissantes pour le lavage simultané du linge

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DE4244386A1 (de) * 1992-12-29 1994-06-30 Basf Ag Vinylpyrrolidon- und Vinylimidazol-Copolymerisate, Verfahren zur ihrer Herstellung und ihre Verwendung in Waschmitteln
EP0635565A1 (fr) * 1993-07-23 1995-01-25 The Procter & Gamble Company Compositions détergentes empêchant le transfert de colorant
DE4341072A1 (de) * 1993-12-02 1995-06-08 Basf Ag Verfahren zur Herstellung von Polymerisaten von Alkyl-1-vinylimidazolen und ihre Verwendung
DE4421179A1 (de) * 1994-06-17 1995-12-21 Basf Ag Farbstoffübertragungsinhibitoren für Wasch- und Reinigungsmittel
EP0719856A1 (fr) * 1994-12-29 1996-07-03 The Procter & Gamble Company Compositions adoucissantes pour le lavage simultané du linge

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BASF AKTIENGESELLSCHAFT: "use of crosslinked copolymers as color transfer inhibitors in detergents", RESEARCH DISCLOSURE, no. 377, 1 September 1995 (1995-09-01) - 30 September 1995 (1995-09-30), EMSWORTH GB, pages 609 - 611, XP000536199 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6887524B2 (en) * 2000-10-13 2005-05-03 The Procter & Gamble Company Method for manufacturing laundry additive article
US7256166B2 (en) 2002-01-18 2007-08-14 The Procter & Gamble Company Laundry articles

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