WO2002050228A1 - Composition de traitement de taches - Google Patents

Composition de traitement de taches Download PDF

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Publication number
WO2002050228A1
WO2002050228A1 PCT/EP2001/012345 EP0112345W WO0250228A1 WO 2002050228 A1 WO2002050228 A1 WO 2002050228A1 EP 0112345 W EP0112345 W EP 0112345W WO 0250228 A1 WO0250228 A1 WO 0250228A1
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WO
WIPO (PCT)
Prior art keywords
fabric
molecular weight
dye
polymers
composition
Prior art date
Application number
PCT/EP2001/012345
Other languages
English (en)
Inventor
Stephen Norman Batchelor
Neil Jones
Original Assignee
Unilever Plc
Unilever Nv
Hindustan Lever Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Plc, Unilever Nv, Hindustan Lever Limited filed Critical Unilever Plc
Priority to AU2002221748A priority Critical patent/AU2002221748A1/en
Publication of WO2002050228A1 publication Critical patent/WO2002050228A1/fr

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Classifications

    • 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
    • C11D3/3792—Amine oxide containing polymers
    • 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
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
    • 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 present invention provides a composition and a method for the treatment of stains. More particularly, the invention relates to the treatment of stains on fabrics which have been caused by dye transfer.
  • Dye transfer is a familiar problem in fabric laundering. It occurs most commonly when a lightly-coloured garment is washed together with a strongly coloured garment which contains a 'non-fast' dye.
  • dye is released from the strongly coloured garment during the washing process and transfers onto the lightly coloured garment bringing about a change of colour in that garment .
  • dyes are substantive to textile fibres removal of the dye from the lightly coloured garment can be difficult, particularly if the lightly coloured garment and the dyestuff have a high affinity for each other.
  • Dye transfer may occur over the whole of an article or may simply occur over parts of it .
  • the latter problem can occur when wet coloured articles are left in contact with light or non-coloured articles.
  • Related problems occur when localised staining of an article occurs with a dyestuff such as when the cap of a pen becomes detached in a pocket and leakage of ink into fabric occurs .
  • Dye transfer inhibitors are known in the laundry art . Typically these materials function in one of two ways. Some inhibitors are effective at bleaching any dyestuff which comes into solution thus preventing its redeposition in a coloured form. Other inhibitors simply bind with the dye to prevent redeposition on the fabric surface: the complex of inhibitor and dye is then removed during rinsing. Despite these advances, incidents of dye transfer still occur when white and coloured garments are washed together under conditions which promote dye transfer.
  • the present invention is based on the finding that a mixture of long and short chain DTI polymers gives improved removal of dyes from fabrics .
  • the present invention provides a fabric treatment composition which comprises one or more dye transfer inhibiting polymers, wherein the overall distribution of the molecular weight of said polymers is polymodal and whereby the composition is effective both at scavenging a dye from a fabric and at preventing redeposition of said dye.
  • the present invention provides a fabric treatment composition which comprises one or more dye transfer inhibiting polymers, wherein one of the polymers is such that the product of limiting viscosity (in cm 3 gm "1 ) and molecular weight (in Daltons) is greater than 1000 and the other polymer has a corresponding product of less than 1000.
  • shorter chain DTI polymers While it is not intended to restrict the scope of the invention by reference to any theory of operation, it is believed that longer-chain polymers are more effective at holding dyes in solution, while shorter chain polymers are effective at penetrating fabric and scavenging dye molecules from the fabric. Thus, in the invention, the shorter chain DTI polymers will effectively act as a shuttle' system to scavenge and transfer the dye from the fabric to the longer chain polymer which then prevents its redeposition by binding to the dye and holding it in solution.
  • the present invention also extends to methods for treatment of fabrics which comprise treating the fabric with a composition according to the present invention. Detailed Description of the Invention
  • compositions contain discrete populations of low molecular weight materials which are effective at scavenging and transporting dye and higher molecular weight materials which are effective at holding dye in solution or suspension.
  • the composition could also comprise a continuous population which contained both the low and the high molecular weight materials, although for practical reasons it is preferred that the composition comprise a mixture of two or more polymers of differing mean molecular weights. Compositions having a bimodal distribution of molecular weights are preferred.
  • Preferred materials for the DTI polymer in either weight range include poly (ethylene glycol) ('PEG'), poly (vinyl pyridine carboxyl methyl betaine) ('PVPCMB), poly (vinyl pyrrolidone) ('PVP'), N-oxide modified PVP ('PVP-NO').
  • the polymers of the low and high molecular weight type can be of the same molecular type or can differ. It is preferred that each is of the same molecular type (such as both are PVP) , although the use of mixtures of two or more different types of polymers (such as PEG/PVP or PVP/PVPCMB) is not excluded. Suitable combinations include PEG600 (where 600 is the mean molecular weight) together with PEG20000.
  • At least one peak in the molecular weight distribution is below 100,000 and at least one peak is above 100,000.
  • At least one molecular weight peak is in the range 500-50,000, more preferably 3500-40,000.
  • Suitable materials having mean molecular weights in this range include PVP10000; PEG600; PVP3500; and PVPCMB40000
  • At least one molecular weight peak is in the range 100,000-10,000,000, more preferably 100,000-500,000.
  • Suitable materials having mean molecular weights in this range include PVP360000 and PVPCMB140000.
  • Preferred combinations include PVP10000 with PVP360000; PEG600 with PVP360000; PVP3500 with PVP360000; PVPCMB40000 with PVP360000 and PVP3500 with PVPCMB140000.
  • the ration of the high molecular weight to the low molecular weight polymer falls in the range 1:4 to 4:1, more preferably 1:2 to 2:1.
  • compositions exhibit synergy in that the overall dye removal effect of mixtures is better than that would be expected by simply taking the ratio of the effects of the polymers present
  • preferred compositions are those in which the effect of the mixture of polymers is better than that of either of the components taken alone.
  • the compositions are applied to the articles being treated in the form of an aqueous liquor.
  • Typical levels of polymer in the compositions of the invention are such that the in-use concentration of the polymer in the treatment liquor is 0.01-l%wt for each of the low and high molecular weight polymers .
  • compositions of the invention may be used before, during or after a conventional laundry process and are preferably packaged and labelled as such.
  • the laundry process includes large and small scale processes, and is preferably a domestic process.
  • compositions are packaged and presented in a manner suitable for occasional use rather than being used systematically as a part of a normal laundering process . Consequently, the compositions would be used for the laundering of garments or other articles which had become coloured due to dye transfer, the intention being to largely or wholly restore the initial appearance of the articles.
  • the compositions of the invention may be used in localised or 'spot' treatment of stains. However, use of the compositions of the invention as components of a regular-use laundry detergent composition is not excluded.
  • compositions of the invention When the compositions of the invention are to be used before or after the laundry process, they may be in the form of a spray or foaming product. Conveniently, this may be applied directly to a stained or coloured area.
  • compositions of the invention When the compositions of the invention are to be used during the laundry process, they may be used at any convenient stage of the process, such as, for example, in a pre-wash composition, in the main wash detergent composition and/or a rinse composition.
  • compositions according to the invention preferably comprise a textile compatible carrier.
  • the term 'textile compatible carrier' means a component which can assist in the interaction of the polymers with the fabric.
  • the carrier can also provide benefits in addition to those provided by the polymer e.g. softening, cleaning etc.
  • the nature of the carrier will depend upon at what stage of the laundry process the composition of the invention is used.
  • the carrier may be water or a detergent-active compound or a fabric softener or conditioning compound or other suitable detergent or fabric treatment agent .
  • the textile- compatible carrier will typically be a detergent-active compound.
  • the textile-compatible carrier will be a fabric softening and/or conditioning compound.
  • the textile-compatible carrier may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent active compounds, and mixtures thereof.
  • the preferred textile-compatible carriers that can be used are soaps and synthetic non-soap anionic and nonionic compounds .
  • Anionic surfactants are well-known to those skilled in the art. Examples include alkylbenzene sulphonates, particularly linear alkylbenzene sulphonates having an alkyl chain length of C 8 -C ⁇ 5 ; primary and secondary alkyl sulphates, particularly C 8 -C ⁇ 5 primary alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates.
  • Sodium salts are generally preferred.
  • Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the C 8 -C 2 o aliphatic alcohols ethoxylated with an average of from 1 to
  • Non-ethoxylated nonionic surfactants include alkylpolyglycosides, glycerol monoethers, and polyhydroxyamides (glucamide) .
  • Cationic surfactants that may be used include quaternary ammonium salts of the general formula R ⁇ R 2 R 3 R 4 - ⁇ . + X " wherein the R groups are independently hydrocarbyl chains of C1-C2 2 length, typically alkyl, hydroxyalkyl or ethoxylated alkyl groups, and X is a solubilising anion (for example, compounds in which Ri is a C 8 -C 22 alkyl group, preferably a C 8 -C ⁇ o or Ci 2 -C 14 alkyl group, R 2 is a methyl group, and R 3 and R 4 , which may be the same or different, are methyl or hydroxyethyl groups) ; and cationic esters (for example, choline esters) and pyridinium salts.
  • R groups are independently hydrocarbyl chains of C1-C2 2 length, typically alkyl, hydroxyalkyl or ethoxylated alkyl groups
  • X is a solub
  • the total quantity of detergent surfactant in the composition is suitably from 0.1 to 60 wt%, e.g. 0.5-55 wt%, such as 5-50 wt%.
  • the quantity of anionic surfactant (when present) is in the range of from 1 to 50% by weight of the total composition. More preferably, the quantity of anionic surfactant is in the range of from 3 to 55% by weight, e.g. 5 to 30% by weight.
  • the quantity of anionic surfactant is in the range of from 3 to 35% by weight, e.g. 5 to 30% by weight.
  • the quantity of nonionic surfactant when present is in the range of from 2 to 25% by weight, more preferably from 5 to 20% by weight.
  • Amphoteric surfactants may also be used, for example amine oxides or betaines .
  • compositions may suitably contain from 10 to 70%, preferably from 15 to 70% by weight, of detergency builder.
  • the quantity of builder is in the range of from 15 to 50% by weight.
  • the detergent composition may contain as builder a crystalline aluminosilicate, preferably an alkali metal aluminosilicate, more preferably a sodium aluminosilicate.
  • the aluminosilicate may generally be incorporated in amounts of from 10 to 70% by weight (anhydrous basis) , preferably from 25 to 50%.
  • Aluminosilicates are materials having the general formula:
  • M is a monovalent cation, preferably sodium.
  • M a monovalent cation, preferably sodium.
  • These materials contain some bound water and are required to have a calcium ion exchange capacity of at least 50 mg CaO/g.
  • the preferred sodium aluminosilicates contain 1.5-3.5 Si0 2 units in the formula above. They can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature. Fabric Softening and/or Conditioner Compounds:
  • compositions of the invention may be in the form of a rinse composition, such as a fabric conditioner composition.
  • the textile-compatible carrier will be a fabric softening and/or conditioning compound (hereinafter referred to as "fabric softening compound”), which may be a cationic or nonionic compound.
  • fabric softening compound a fabric softening and/or conditioning compound
  • the softening and/or conditioning compounds may be water insoluble, non-polymeric, quaternary ammonium compounds.
  • the compounds may be present in amounts of up to 8% by weight (based on the total amount of the composition) in which case the compositions are considered dilute, or at levels from 8% to about 50% by weight, in which case the compositions are considered concentrates.
  • compositions suitable for delivery during the rinse cycle may also be delivered to the fabric in the tumble dryer if used in a suitable form.
  • another product form is a composition (for example, a paste) suitable for coating onto, and delivery from, a substrate e.g. a flexible sheet or sponge or a suitable dispenser (such as a container having apertures therein, for example) during a tumble dryer cycle.
  • Suitable cationic fabric softening compounds are substantially water-insoluble quaternary ammonium materials comprising a single alkyl or alkenyl long chain having an average chain length greater than or equal to C 2 o or, more preferably, compounds comprising a polar head group and two alkyl or alkenyl chains having an average chain length greater than or equal to C 14 .
  • the fabric softening compounds have two long chain alkyl or alkenyl chains each having an average chain length greater than or equal to C ⁇ 6 . Most preferably at least 50% of the long chain alkyl or alkenyl groups have a chain length of C ⁇ 8 or above. It is preferred if the long chain alkyl or alkenyl groups of the fabric softening compound are predominantly linear.
  • Quaternary ammonium compounds having two long-chain aliphatic groups for example distearyldimethyl ammonium chloride and di (hardened tallow alkyl) dimethyl ammonium chloride, are widely used in commercially available rinse conditioner compositions.
  • Other examples of these cationic compounds are to be found in "Surface-Active Agents and Detergents", Volumes I and II, by Schwartz, Perry and Berch. Any of the conventional types of such compounds may be used in the compositions of the present invention.
  • the fabric softening compounds are preferably compounds that provide excellent softening, and are characterised by a chain melting L ⁇ to L ⁇ transition temperature greater than 25 °C, preferably greater than 35 °C, most preferably greater than 45 °C. This L ⁇ to L ⁇ transition can be measured by DSC as defined in "Handbook of Lipid Bilayers” , D Marsh, CRC Press, Boca Raton, Florida, 1990 (pages 137 and 337) .
  • Substantially water-insoluble fabric softening compounds are defined as fabric softening compounds having a solubility of less than 1 x 10 "3 wt % in demineralised water at 20°C.
  • the fabric softening compounds have a solubility of less than 1 x 10 "4 wt %, more preferably less than 1 x 10 "
  • cationic fabric softening compounds that are water-insoluble quaternary ammonium materials having two C 12 - 22 alkyl or alkenyl groups connected to the molecule via at least one ester link, preferably two ester links.
  • An especially preferred ester-linked quaternary ammonium material can be represented by the formula II:
  • each Ri group is independently selected from C ⁇ _ alkyl or hydroxyalkyl groups or C 2 - alkenyl groups ; each R 2 group is independently selected from C 8 . 28 alkyl or alkenyl groups ; and wherein -R 3 - is a linear or branched alkylene group of 1 to 5 carbon atoms , T is
  • Di (tallowoyloxyethyl) dimethyl ammonium chloride and/or its hardened tallow analogue is especially preferred of the compounds of formula (II) .
  • a second preferred type of quaternary ammonium material can be represented by the formula (III) :
  • the quaternary ammonium material is biologically biodegradable.
  • Preferred materials of this class such as 1,2 -bis (hardened tallowoyloxy) -3-trimethylammonium propane chloride and their methods of preparation are, for example, described in US 4 137 180 (Lever Brothers Co) .
  • these materials comprise small amounts of the corresponding mono- ester as described in US 4 137 180, for example, 1-hardened tallowoyloxy-2-hydroxy-3-trimethylammonium propane chloride,
  • compositions may alternatively or additionally contain water-soluble cationic fabric softeners, as described in GB 2 039 556B (Unilever) .
  • compositions may comprise a cationic fabric softening compound and an oil, for example as disclosed in EP-A-0829531.
  • compositions may alternatively or additionally contain nonionic fabric softening agents such as lanolin and derivatives thereof.
  • Lecithins are also suitable softening compounds.
  • Nonionic softeners include L ⁇ phase forming sugar esters (as described in M Hato et al Langmuir 12, 1659, 1966, (1996) ) and related materials such as glycerol mono-stearate or sorbitan esters. Often these materials are used in conjunction with cationic materials to assist deposition (see, for example, GB 2 202 244 ) . Silicones are used in a similar way as a co-softener with a cationic softener in rinse treatments (see, for example, GB 1 549 180) .
  • compositions may also suitably contain a nonionic stabilising agent.
  • Suitable nonionic stabilising agents are linear C 8 to C 22 alcohols alkoxylated with 10 to 20 moles of alkylene oxide, C ⁇ 0 to C 2 o alcohols, or mixtures thereof.
  • the nonionic stabilising agent is a linear C 8 to C 22 alcohol alkoxylated with 10 to 20 moles of alkylene oxide.
  • the level of nonionic stabiliser is within the range from 0.1 to 10% by weight, more preferably from 0.5 to 5% by weight, most preferably from 1 to 4% by weight.
  • the mole ratio of the quaternary ammonium compound and/or other cationic softening agent to the nonionic stabilising agent is suitably within the range from 40:1 to about 1:1, preferably within the range from 18:1 to about 3:1.
  • the composition can also contain fatty acids, for example C 8 to C 24 alkyl or alkenyl mono-carboxylic acids or polymers thereof.
  • fatty acids for example C 8 to C 24 alkyl or alkenyl mono-carboxylic acids or polymers thereof.
  • saturated fatty acids are used, in particular hardened tallow C 16 to C 18 fatty acids.
  • the fatty acid is non-saponified, more preferably the fatty acid is free, for example oleic acid, lauric acid or tallow fatty acid.
  • the level of fatty acid material is preferably more than 0.1% by weight, more preferably more than 0.2% by weight.
  • Concentrated compositions may comprise from 0.5 to 20% by weight of fatty acid, more preferably 1% to 10% by weight.
  • the weight ratio of quaternary ammonium material or other cationic softening agent to fatty acid material is preferably from 10:1 to 1:10.
  • the fabric conditioning compositions may include silicones, such as predominantly linear polydialkylsiloxanes, e.g. polydimethylsiloxanes or aminosilicones containing amine- functionalised side chains; amphoteric surfactants; smectite type inorganic clays; zwitterionic quaternary ammonium compounds; and nonionic surfactants.
  • the silicone component is a dimethylpolysiloxane with amino- alkyl groups .
  • the fabric conditioning compositions may also include an agent which produces a pearlescent appearance, e.g. an organic pearlising compound such as ethylene glycol distearate, or inorganic pearlising pigments such as microfine mica or titanium dioxide (Ti0 2 ) coated mica.
  • the fabric conditioning compositions may be in the form of emulsions or emulsion precursors thereof.
  • emulsifiers for example, sodium chloride or calcium chloride
  • electrolytes for example, sodium chloride or calcium chloride
  • pH buffering agents for example, sodium chloride or calcium chloride
  • perfumes preferably from 0.1 to 5% by weight
  • Further optional ingredients include one or more of non- aqueous solvent, perfume carriers, fluorescers, colourants, hydrotropes, antifoaming agents, enzymes, optical brightening agents, opacifiers, anti-shrinking agents, anti- wrinkle agents, anti-spotting agents, germicides, fungicides, anti-oxidants , UV absorbers (sunscreens), heavy metal sequestrants, chlorine scavengers, dye fixatives, anti-corrosion agents, drape imparting agents, antistatic agents and ironing aids. This list is not intended to be exhaustive.
  • the composition of the invention may be in the form of a liquid, solid (e.g. powder or tablet), a gel or paste, spray, stick or a foam or mousse. Examples include a soaking product, a rinse treatment (e.g. conditioner or finisher) or a main-wash product.
  • the composition may also be applied to a substrate (e.g. a flexible sheet) or used in a dispenser which can be used in the wash cycle or the rinse cycle.
  • the fabrics which may be treated in the present invention may be in the form of garments and preferably comprise cellulosic fibres, preferably from 1% to 100% cellulosic fibres (more preferably 5% to 100% cellulosic fibres, most preferably 40% to 100% such as 75% to 100%) .
  • the balance comprises other fibres or blends of fibres suitable for use in garments such as polyester or polyamide, for example.
  • the cellulosic fibres are of cotton or regenerated cellulose such as viscose.
  • Cotton that had been dyed with Direct Green 26 to a level of 5% on weight of fabric was soaked in hot water to prepare a solution of dye for dye transfer.
  • White mercerised cotton was subjected to dye transfer by immersion in the resultant solution.
  • the dyed cotton was removed from the solution and the excess solution removed by using a spin dyer.
  • the cotton was thoroughly rinsed using cold deionised water and the excess water removed by spin dying.
  • the cotton was allowed to dry at ambient temperature.
  • the levels of dye transferred to the cotton were measured using a Datacolour International SpectraflashTM SF600.
  • Solutions of DTI polymer were made by dissolving the desired level of polymer in 50ml deionised water in a polythene bottle.
  • the bottle was sealed, placed in a GallenkampTM shaker water bath and allowed to equilibrate to 40°C at 100 oscillations per minute.
  • four pieces each 5cm x 5cm was added to the bottle and the contents washed at 40°C for 30 minutes under agitation.
  • the washed cloths were rinsed using deionised water and the excess water remover using a spin dyer.
  • the fabric was allowed to dry at ambient temperature.
  • the level of dye in solution was determined using a Perkin ElmerTM UV/Vis spectrometer using deionised water as the reference.
  • the level of direct green 26 in solution was determined at wavelength of 630nm and was normalised by subtracting the adsorbance measured at a wavelength of
  • results show how a combination of low and high molecular weight polymer generally exhibits a synergistic dye stripping benefit .
  • Example 2 demonstrates the effect of combining a low molecular weight PVP (3500) and a high molecular weight PVP (360000) . Combination in all cases increases the amount of dye released into solution from the fabric over the result obtained with the individual PVP's.
  • Example 3
  • Example 5 Other polymers .
  • This example uses DTI-1 2OB - poly (vinyl pyridine carboxyl methyl betaine) average molecular weight 140000 and DTI-1 20C - poly (vinyl pyridine carboxyl methyl betaine) average molecular weight 40000
  • Example 5 shows the effect of PVP and poly (vinyl pyridine carboxyl methyl betaine) and combination of the level of dye stripping. It can be seen that for the second, third and fourth sub-examples the best results were obtained when the combination of polymers was used.

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  • Wood Science & Technology (AREA)
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  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

La présente invention repose sur la découverte qu'un mélange de polymères DTI à chaînes longues et courtes permet une élimination améliorée de colorants sur les tissus. Ladite invention permet d'obtenir une composition de traitement de tissu qui comprend un ou plusieurs polymères inhibiteurs de transfert pigmentaire, dans laquelle la répartition globale du poids moléculaire desdits polymères est polymodale, cette composition étant efficace à la fois pour faire disparaître un colorant d'un tissu et pour empêcher la redéposition dudit colorant. La présente invention concerne également des procédés de traitement de tissus qui consistent à traiter le tissu à l'aide d'une composition selon la présente invention. Des matières préférées pour le polymère DTI dans les deux intervalles de poids comprennent le poly (éthylène glycol) (PEG), la poly(vinyl pyridine carboxyl méthyl bétaïne) (PVPCMB), la poly(vinyl pyrrolidone) (PVP), la PVP modifiée par de l'oxyde d'azote (PVP-NO).
PCT/EP2001/012345 2000-12-19 2001-10-24 Composition de traitement de taches WO2002050228A1 (fr)

Priority Applications (1)

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AU2002221748A AU2002221748A1 (en) 2000-12-19 2001-10-24 Stain treatment composition

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GB0030956.7 2000-12-19
GB0030956A GB0030956D0 (en) 2000-12-19 2000-12-19 Stain treatment composition

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9624615B2 (en) 2013-03-15 2017-04-18 Whirlpool Corporation Methods and compositions for treating laundry items
US9702074B2 (en) 2013-03-15 2017-07-11 Whirlpool Corporation Methods and compositions for treating laundry items
US20210371710A1 (en) * 2018-02-09 2021-12-02 Asahi Kasei Kabushiki Kaisha Block Copolymer, Polymer Composition, Composition for Viscous Adhesive, Viscous Adhesive Composition, and Coupling Agent

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WO1994011482A1 (fr) * 1992-11-16 1994-05-26 The Procter & Gamble Company Compositions assouplissantes contenant des inhibiteurs de transfert de colorants destinees a ameliorer l'aspect du tissu
WO1997023592A1 (fr) * 1995-12-21 1997-07-03 Unilever Plc Composition detergente
US5804662A (en) * 1995-02-20 1998-09-08 Basf Aktiengesellschaft Agglomerated, finely divided, crosslinked vinylimidazole copolymers, preparation thereof, and use thereof
US5912221A (en) * 1994-12-29 1999-06-15 Procter & Gamble Company Laundry detergent composition comprising substantially water-insoluble polymeric dye transfer inhibiting agent
US6133224A (en) * 1996-12-20 2000-10-17 The Procter & Gamble Company Process for making a free-flowing particulate dye transfer inhibiting detergent admix

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011482A1 (fr) * 1992-11-16 1994-05-26 The Procter & Gamble Company Compositions assouplissantes contenant des inhibiteurs de transfert de colorants destinees a ameliorer l'aspect du tissu
US5912221A (en) * 1994-12-29 1999-06-15 Procter & Gamble Company Laundry detergent composition comprising substantially water-insoluble polymeric dye transfer inhibiting agent
US5804662A (en) * 1995-02-20 1998-09-08 Basf Aktiengesellschaft Agglomerated, finely divided, crosslinked vinylimidazole copolymers, preparation thereof, and use thereof
WO1997023592A1 (fr) * 1995-12-21 1997-07-03 Unilever Plc Composition detergente
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