EP1019478B2 - Composition detergente - Google Patents

Composition detergente Download PDF

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Publication number
EP1019478B2
EP1019478B2 EP97930425A EP97930425A EP1019478B2 EP 1019478 B2 EP1019478 B2 EP 1019478B2 EP 97930425 A EP97930425 A EP 97930425A EP 97930425 A EP97930425 A EP 97930425A EP 1019478 B2 EP1019478 B2 EP 1019478B2
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EP
European Patent Office
Prior art keywords
cellulase
latex
surfactant
peptide
agent
Prior art date
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EP97930425A
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German (de)
English (en)
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EP1019478A1 (fr
EP1019478B1 (fr
Inventor
Christopher Clarkson Jones
Amanda Perry
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Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
    • 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
    • C11D3/3719—Polyamides or polyimides
    • 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
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/15—Proteins or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic

Definitions

  • the present invention relates to a detergent composition and to a process for adding Benefit Agents during the wash, in particular the invention relates to detergent compositions containing a new form of deposition system based on agents with a high affinity for a fabric.
  • fibrous materials such as fabrics or the like can be treated with Benefit Agents which deliver one or more desirable properties to the material.
  • the present application has derived a way of overcoming this problem of depositing Benefit Agents onto fabrics, and ensuring that they remain on the fabric during wear.
  • the present application relates to a detergent composition
  • a detergent composition comprising a surfactant, a peptide or protein Deposition Aid having a high affinity for fibres or a surface and a Benefit Agent attached/adsorbed to the peptide or protein Deposition Aid, wherein said Benefit Agent is selected from a perfume, an encapsulated perfume, a photo protective agent, a soil release polymer, a soil repelling agent, a fabric softening compound selected from clay, cationic active or silicone, an insecticide, a fungicide, antioxidants or dye fix actives.
  • the peptide/protein Deposition Aid is any cellulase or the binding domain thereof that has a high affinity for fibres or a surface.
  • a Benefit Agent in the context of this invention is a compound which gives a desirable effect on a fibre, fabric or surface.
  • the benefit agent gives a perceivable benefit to the fabric.
  • a Benefit Agent is an agent which effects the feel, appearance, or the perception of a fabric.
  • the Benefit Agent is a fabric softening compound, a perfume, an encapsulated perfume, a photo protective agent (such as a sunscreen), a dye fix active, an antioxidant, an insecticide, a soil repelling agent, a soil release polymer or a fungicide.
  • Benefit Agent is a fabric softening agent it comprises a clay, a cationic active, or silicone.
  • Suitable clays include a three layered smectite clay, preferably having a cation exchange capacity as described in GB1400898 (Procter and Gamble ). Especially preferred are clays which are 2:1 layer phyllosilicates possessing a lattice charge deficiency in the range of 0.2 to 0.4g equivalents per half unit cell as described in EP 0 350 288 (Unilever).
  • Suitable cationic softening agents include quaternary ammonium softening compounds having a solubility in water at pH 2.5 and 20°C of less than 10g/l.
  • the cationic softening compound is a quaternary ammonium compound in which at least one long chain alkyl group is connected to the quaternary ammonium group via at least one ester link.
  • Suitable cationic softeners are described in US 4 137 180 (Naik ) and WO 93/23510 (P&G).
  • the Benefit Agent may be a soil release polymer
  • suitable soil release polymers include polyesters of terephthalic acid and other aromatic dicarboxylic acids.
  • Soil release polymers that may be used with the present invention which are the condensation products of aromatic dicarboxylic acids and dihydric alcohols include EP 185 427A , EP 241 984A , EP 241 985A and EP 272 033A (Procter & Gamble).
  • PET/POET polyethylene terephthalate/polyoxyethylene terephthalate
  • PET/PEG Polyethylene terephthalate/ polyethylene glycol
  • Polymers of this type are available commercially, for example, as Permalose, Aquaperle and Milease (Trade Marks, ICI) and Repel-O-Tex SRP3 (Trade Mark, Rhône-Poulenc).
  • Sulphonated non-end-capped polyester of terephthalic acid, isophthalic acid, sulphoisophthalic acid and ethylene glycol as described in PCT/FR95/00658 (Rhône-Poulenc), published 1 December 1995 and sold commercially as Gerol (Trade mark Rhône-Poulenc) are also advantageous when used in conjunction with the present invention.
  • the Benefit Agent may be encapsulated.
  • Suitable encapsulating materials include starches and poly(vinylacetate) and urea/formaldehyde condensate based materials.
  • Suitable materials that may be encapsulated include perfumes, insect repellents, fungicides, or photo protective agents.
  • the Benefit Agent is attached/adsorbed to the peptide/protein Deposition Aid. If the Benefit Agent is adsorbed this is preferably by simple physisorption of the enzyme.
  • the benefit is attached to the peptide/protein Deposition Aid this is preferably via a linking agent.
  • Suitable linking agents are molecules which show a high affinity for the Benefit Agent. It is preferred if the linking agent is covalently attached to the peptide/protein Deposition Aid, it is also advantageous if the linking agent is covalently bound to the Benefit Agent.
  • Preferred linking agents are selected from 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide, 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride, N-ethyl-5-phenylisoxazolium - 3 - sulphonate, 1 - cyclohexyl-3-(2 morpholinoethyl) carbodide metho-p-tolune sulphonate, N-ethoxycarbonyl-2-ethoxy 1,2 dihydroquinoline or glutaraldehyde.
  • the detergent compositions of the invention will contain a surfactant which may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent-active compounds, and mixtures thereof.
  • a surfactant which may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent-active compounds, and mixtures thereof.
  • Many suitable detergent-active compounds are available and are fully described in the literature, for example, in "Surface-Active Agents and Detergents", Volumes I and II, by Schwartz, Perry and Berch.
  • the preferred detergent-active compounds that can be used are soaps and synthetic non-soap anionic and nonionic compounds.
  • the detergent compositions of the invention may contain anionic surfactants.
  • Suitable anionic surfactants are well-known to those skilled in the art. Examples include primary and secondary alkyl sulphates, particularly C 8 -C 15 primary alkyl sulphates; alkyl benzene sulphonates, alkyl ether sulphates; olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates, alkyl ether carboxylates, alkyl sarccosinates.
  • Sodium salts are generally preferred.
  • compositions of the invention may also contain nonionic surfactant.
  • Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the C 8 -C 20 aliphatic alcohols ethoxylated with an average of from 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially the C 10 -C 15 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol.
  • Non-ethoxylated nonionic surfactants include alkylpolyglycosides, glycerol monoethers, and polyhydroxyamides (glucamide).
  • surfactant and the amount present, will depend on the intended use of the detergent composition.
  • different surfactant systems may be chosen, as is well known to the skilled formulator, for handwashing products and for products intended for use in different types of washing machine.
  • the total amount of surfactant present will also depend on the intended end use and may be as high as 60 wt%, for example, in a composition for washing fabrics by hand. In compositions for machine washing of fabrics, an amount of from 5 to 40 wt% is generally appropriate.
  • Detergent compositions suitable for use in most automatic fabric washing machines generally contain anionic non-soap surfactant, or nonionic surfactant, or combinations of the two in any ratio, optionally together with soap.
  • the detergent compositions of the invention will generally also contain one or more detergency builders.
  • the total amount of detergency builder in the compositions will suitably range from 5 to 80 wt%, preferably from 10 to 60 wt%.
  • Inorganic builders that may be present include sodium carbonate, if desired in combination with a crystallisation seed for calcium carbonate, as disclosed in GB 1 437 950 (Unilever ); crystalline and amorphous aluminosilicates, for example, zeolites as disclosed in GB 1 473 201 (Henkel ), amorphous aluminosilicates as disclosed in GB 1 473 202 (Henkel ) and mixed crystalline/amorphous aluminosilicates as disclosed in GB 1 470 250 (Procter & Gamble ); and layered silicates as disclosed in EP 164 514B (Hoechst).
  • Inorganic phosphate builders for example, sodium orthophosphate, pyrophosphace and tripolyphosphate are also suitable for use with this invention.
  • the detergent compositions of the invention preferably contain an alkali metal, preferably sodium, aluminosilicate builder.
  • Sodium aluminosilicates may generally be incorporated in amounts of from 10 to 70% by weight (anhydrous basis), preferably from 25 to 50 wt%.
  • the alkali metal aluminosilicate may be either crystalline or amorphous or mixtures thereof, having the general formula: 0.8-1.5 Na 2 O. Al 2 O 3 . 0.8-6 SiO 2
  • the preferred sodium aluminosilicates contain 1.5-3.5 SiO 2 units (in the formula above). Both the amorphous and the crystalline materials can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature.
  • Suitable crystalline sodium aluminosilicate ion-exchange detergency builders are described, for example, in GB 1 429 143 (Procter & Gamble ).
  • the preferred sodium aluminosilicates of this type are the well-known commercially available zeolites A and X, and mixtures thereof.
  • the zeolite may be the commercially available zeolite 4A now widely used in laundry detergent powders.
  • the zeolite builder incorporated in the compositions of the invention is maximum aluminium zeolite P (zeolite MAP) as described and claimed in EP 384 070A (Unilever).
  • Zeolite MAP is defined as an alkali metal aluminosilicate of the zeolite P type having a silicon to aluminium ratio not exceeding 1.33, preferably within the range of from 0.90 to 1.33, and more preferably within the range of from 0.90 to 1.20.
  • zeolite MAP having a silicon to aluminium ratio not exceeding 1.07, more preferably about 1.00.
  • the calcium binding capacity of zeolite MAP is generally at least 150 mg CaO per g of anhydrous material.
  • Organic builders that may be present include polycarboxylate polymers such as polyacrylates, acrylic/maleic copolymers, and acrylic phosphinates; monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, glycerol mono-, di-and trisuccinates, carboxymethyloxysuccinates, carboxymethyloxymalonates, dipicolinates, hydroxyethyliminodiacetates, alkyl- and alkenylmalonates and succinates; and sulphonated fatty acid salts. This list is not intended to be exhaustive.
  • polycarboxylate polymers such as polyacrylates, acrylic/maleic copolymers, and acrylic phosphinates
  • monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, glycerol mono-, di-and trisuccinates, carboxymethyloxysuccinates, carboxymethyloxymalonates, dipicolinates,
  • Especially preferred organic builders are citrates, suitably used in amounts of from 5 to 30 wt%, preferably from 10 to 25 wt%; and acrylic polymers, more especially acrylic/maleic copolymers, suitably used in amounts of from 0.5 to 15 wt%, preferably from 1 to 10 wt%.
  • Builders both inorganic and organic, are preferably present in alkali metal salt, especially sodium salt, form.
  • Detergent compositions according to the invention may also suitably contain a bleach system.
  • Fabric washing compositions may desirably contain peroxy bleach compounds, for example, inorganic persalts or organic peroxyacids, capable of yielding hydrogen peroxide in aqueous solution.
  • Suitable peroxy bleach compounds include organic peroxides such as urea peroxide, and inorganic persalts such as the alkali metal perborates, percarbonates, perphosphates, persilicates and persulphates.
  • organic peroxides such as urea peroxide
  • inorganic persalts such as the alkali metal perborates, percarbonates, perphosphates, persilicates and persulphates.
  • Preferred inorganic persalts are sodium perborate monohydrate and tetrahydrate, and sodium percarbonate.
  • sodium percarbonate having a protective coating against destabilisation by moisture Especially preferred is sodium percarbonate having a protective coating against destabilisation by moisture.
  • Sodium percarbonate having a protective coating comprising sodium metaborate and sodium silicate is disclosed in GB 2 123 044B (Kao).
  • the peroxy bleach compound is suitably present in an amount of from 0.1 to 35 wt%, preferably from 0.5 to 25 wt%.
  • the peroxy bleach compound may be used in conjunction with a bleach activator (bleach precursor) to improve bleaching action at low wash temperatures.
  • the bleach precursor is suitably present in an amount of from 0.1 to 8 wt%, preferably from 0.5 to 5 wt%.
  • Preferred bleach precursors are peroxycarboxylic acid precursors, more especially peracetic acid precursors and pernonanoic acid precursors.
  • An especially preferred bleach precursor suitable for use in the present invention is N,N,N',N'-tetracetyl ethylenediamine (TAED) and sodium nonanoyloxybenzene sulphonate (SNOBS).
  • TAED N,N,N',N'-tetracetyl ethylenediamine
  • SNOBS sodium nonanoyloxybenzene sulphonate
  • the novel quaternary ammonium and phosphonium bleach precursors disclosed in US 4 751 015 and US 4 818 426 (Lever Brothers Company ) and EP 402 971A (Unilever) are also of great interest.
  • the cationic bleach precursors disclosed in EP 284 292A and EP 303 520A (Kao) may also be used.
  • the bleach system can be either supplemented with or replaced by a peroxyacid.
  • peracids can be found in US 4 686 063 and US 5 397 501 (patent on TPCAP - Unilever).
  • a preferred example is the imido peroxycarboxylic class of peracids described in EP A 325 288 , EP A 349 940 , DE 382 3172 and EP 325 289 .
  • a particularly preferred example is phtalimido peroxy caproic acid (PAP).
  • PAP phtalimido peroxy caproic acid
  • Such peracids are suitably present at 0.1 - 12%, preferably 0.5 - 10%.
  • a bleach stabiliser may also be present.
  • Suitable bleach stabilisers include ethylenediamine tetraacetate (EDTA), the polyphosphonates such as Dequest (Trade Mark) and non-phosphate stabilisers such as EDDS (ethylene diamine di-succinic acid). These Bleach stabilisers are also useful for stain removal, especially in products containing low levels of bleaching species or no bleaching species.
  • An especially preferred bleach system comprises a peroxy bleach compound (preferably sodium percarbonate optionally together with a bleach activator), and a transition metal bleach catalyst as described and claimed in EP 458 397A , EP 458 398A and EP 509 787A (Unilever).
  • a peroxy bleach compound preferably sodium percarbonate optionally together with a bleach activator
  • a transition metal bleach catalyst as described and claimed in EP 458 397A , EP 458 398A and EP 509 787A (Unilever).
  • Suitable enzymes which may be used with the peptide/protein Deposition Aid of this invention include the proteases, amylases, cellulases, oxidases, peroxidases, lipolases and lipases cutinases and ceratinases usable for incorporation in detergent compositions.
  • Preferred proteolytic enzymes are, catalytically active protein materials which degrade or alter protein types of stains when present as in fabric stains in a hydrolysis reaction. They may be of any suitable origin, such as vegetable, animal, bacterial or yeast origin.
  • proteolytic enzymes or proteases of various qualities and origins and having activity in various pH ranges of from 4-12 are available and can be used in the instant invention.
  • suitable proteolytic enzymes are the subtilisins, which are obtained from particular strains of B . subtilis and B . licheniformis , such as the commercially available subtilisins Maxatase (Trade Mark), as supplied by Gist Brocades N.V., Delft, Holland, and Alcalase (Trade Mark), as supplied by Novo Industri A/S, Copenhagen, Denmark.
  • protease obtained from a strain of Bacillus having maximum activity throughout the pH range of 8-12, being commercially available, e.g. from Novo Induscri A/S under the registered trade-names Esperase (Trade Mark) and Savinase (Trade-Mark).
  • Esperase Trade Mark
  • Savinase Trade-Mark
  • Other commercial proteases are Kazusase (Trade Mark) (obtainable from Showa-Denko of Japan), Optimase (Trade Mark) (from Miles Kali-Chemie, Hannover, West Germany), and Superase (Trade Mark) (obtainable from Pfizer of U.S.A.).
  • Detergency enzymes are commonly employed in granular form in amounts of from about 0.1 to about 3.0 wt%.
  • compositions of the invention may contain alkali metal, preferably sodium, carbonate, in order to increase detergency and ease processing.
  • Sodium carbonate may suitably be present in amounts ranging from 1 to 60 wt%, preferably from 2 to 40 wt%.
  • compositions containing little or no sodium carbonate are also within the scope of the invention.
  • Powder flow may be improved by the incorporation of a small amount of a powder structurant, for example, a fatty acid (or fatty acid soap), a sugar, an acrylate or acrylate/maleate polymer, or sodium silicate.
  • a powder structurant for example, a fatty acid (or fatty acid soap), a sugar, an acrylate or acrylate/maleate polymer, or sodium silicate.
  • One preferred powder structurant is fatty acid soap, suitably present in an amount of from 1 to 5 wt%.
  • detergent compositions of the invention include sodium silicate; antiredeposition agents such as cellulosic polymers; inorganic salts such as sodium sulphate; lather control agents or lather boosters as appropriate; proteolytic and lipolytic enzymes; dyes; coloured speckles; perfumes; foam controllers; fabric softening compounds, soil release polymers, fluorescers and decoupling polymers. This list is not intended to be exhaustive.
  • the detergent composition when diluted in the wash liquor (during a typical wash cycle) will give a pH of the wash liquor from 7 to 10.5.
  • the detergent components of the present invention may be incorporated in detergent compositions of all physical types, for example, powders, liquids, gels and solid bars.
  • Detergent compositions of the invention may be prepared by any suitable method.
  • Particulate detergent compositions are suitably prepared by spray-drying a slurry of compatible heat-insensitive ingredients, and then spraying on or postdosing those ingredients unsuitable for processing via the slurry.
  • the skilled detergent formulator will have no difficulty in deciding which ingredients should be included in the slurry and which should not.
  • Particulate detergent compositions of the invention preferably have a bulk density of at least 400 g/l, more preferably at least 500 g/l.
  • compositions have bulk densities of at least 650 g/litre, more preferably at least 700 g/litre.
  • Such powders may be prepared either by post-tower densification of spray-dried powder, or by wholly non-tower methods such as dry mixing and granulation; in both cases a high-speed mixer/granulator may advantageously be used.
  • Liquid detergent compositions can be prepared by admixing the essential and optional ingredients thereof in any desired order to provide compositions containing components in the requisite concentrations.
  • Liquid compositions according to the present invention can also be in compact form which means it will contain a lower level of water compared to a conventional liquid detergent.
  • Example 1 Demonstration of the preparation and deposition of the cellulase latex system
  • Particles of 0.5 ⁇ m polystyrene latex (ex Polyscience) were taken and the surface functionalised to have free carboxylate groups. The bulk of the particles have small amounts of fluorescent dye incorporated.
  • the resulting mixture was used to treat cotton as follows 1) Two 5x5cm squares of white cotton were added to 38 ml of liquor containing 0.001 mol / l carbonate buffer at pH 9.6, 1 g / l of a surfactant system comprising 50% PAS, 35% Synperonic A7 and 15% Synperonic A3 and 5.0 ppm of the fluorescent latex. Two conditions were examined:
  • Example 2 Demonstration of the use of the cellulase deposition system to deliver an anionic fabric conditioner to cotton.
  • a 5% solids dispersion was prepared, where the particles consisted of a surfactant mesophase of composition (by mole fraction) 0.55 octadecanol: 0.40 cetyl sodium sulphonate : 0.05 stearic acid.
  • Trichoderma reesei was covalently attached to the particles using the following method:
  • Example 3 Comparing the use of physisorbed cellulase with covalently bound cellulase to deliver latex particles to cotton.
  • the latex used was a 2.5% dispersion of 0.5 ⁇ m polystyrene latex particles whose surface has carboxylate groups incorporated.
  • the latex has a small amount of fluorescer incorporated.
  • the resulting mixture was used to treat cotton as follows; 1) Two 5 x 5 cm squares of white cotton were added to 38 ml of liquor containing 0.01 mol / l phosphate buffer at pH 7.0 and 5 ppm of the fluorescent latex. Three conditions were examined:
  • Example 4 Demonstration that enhanced delivery to cotton can be achieved using a variety of deposition aids.
  • a number of latex dispersions were prepared each having a different cellulase enzyme covalently attached according to the method described in Example 1. Four different cellulases were used:
  • Example 5 Demonstration of the use of the cellulase deposition system to deliver a silicone fabric softener to cotton
  • the cellulase-modified silicone was incorporated into a model wash and a model rinse. In each case two controls were also used: incorporation of unmodified silicone and the use of no silicone at all.
  • the fabrics used in the experiments were 20 x 20 cm squares of white Terry towelling.
  • the model washes and rinses were performed in a Tergotometer using the following protocols:
  • the panel judged the treatment containing the cellulase-modified silicone to deliver greater softness than the two controls.
  • Example 6 Demonstration of the use of the cellulase deposition system to deliver a cationic surfactant fabric softener from a wash containing anionic surfactant.
  • the cellulase-modified dispersion was incorporated into a model wash. Two controls were also used: incorporation of unmodified dispersion and the use of no cationic surfactant dispersion at all.
  • the fabrics used in the experiments were 20 x 20 cm squares of white Terry towelling.
  • the model washes were performed in a Tergotometer using the following protocol:
  • the panel judged the cloths washed with a formulation containing the cellulase-modified cationic surfactant dispersion to be softer than the two controls. The panel also judged that this treatment had rendered the fabric softer than it was before undergoing the wash. These panel results were significant at the 95% confidence level.
  • Example 7 Demonstration of the use of glutaraldehyde as a linking agent.
  • Two modified latices were prepared using different levels of cellulase.
  • the resulting mixture was used to treat cotton as follows 1) Two 5 x 5 cm squares of white cotton were added to 38 ml of liquor containing 0.01 mol / l carbonate buffer at pH 9.6 and 15 ppm of the fluorescent latex. Three conditions were examined:

Claims (5)

  1. Composition détergente comprenant un tensioactif un agent facilitant le dépôt à base de peptides ou de protéines qui a une grande affinité pour des fibres ou une surface, et un agent d'amélioration fixé à/adsorbé sur l'agent facilitant le dépôt à base de peptides ou de protéines, dans laquelle ledit agent facilitant le dépôt à base de peptides ou de protéines est de la cellulase ou le domaine de fixation de celle-ci, et ledit agent d'amélioration est choisi parmi un parfum, un parfum encapsulé, un agent photo-protecteur, un polymère permettant l'élimination des salissures, un agent repoussant les salissures, un assouplissant choisi parmi une argile, une substance active cationique ou une silicone, un insecticide, un fongicide, des antioxydants, ou des fixateurs de couleur.
  2. Composition selon la revendication 1, dans laquelle l'agent d'amélioration est fixé à la cellulase ou au domaine de fixation de celle-ci par l'intermédiaire d'un groupe de liaison.
  3. Composition selon la revendication 1 ou la revendication 2, dans laquelle le groupe de liaison est lié de façon covalente à la cellulase ou au domaine de fixation de celle-ci.
  4. Composition selon l'une quelconque des revendications précédentes, dans laquelle le groupe de liaison est choisi parmi le 1-éthyl-3-(3-diméthylaminopropyl)-carbodiimide, le chlorhydrate de 1-éthyl-3-(3-diméthylaminopropyl)carbodiimide, le N-éthyl-5-phénylisoxazolium-3-sulphonate, le 1-cyclohexyl-3-(2-morpholinoéthyl)-carbodiimide métho-p-toluène-sulfonate, le N-éthoxycarbonyl-2-éthoxy-1,2-dihydroquinoline ou le glutaraldéhyde.
  5. Composition selon la revendication 1, dans laquelle le tensioactif détergent est un tensioactif non ionique.
EP97930425A 1996-07-01 1997-06-24 Composition detergente Expired - Lifetime EP1019478B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9613758.3A GB9613758D0 (en) 1996-07-01 1996-07-01 Detergent composition
GB9613758 1996-07-01
PCT/EP1997/003371 WO1998000500A1 (fr) 1996-07-01 1997-06-24 Composition detergente

Publications (3)

Publication Number Publication Date
EP1019478A1 EP1019478A1 (fr) 2000-07-19
EP1019478B1 EP1019478B1 (fr) 2005-08-24
EP1019478B2 true EP1019478B2 (fr) 2010-05-26

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Family Applications (1)

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EP97930425A Expired - Lifetime EP1019478B2 (fr) 1996-07-01 1997-06-24 Composition detergente

Country Status (10)

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EP (1) EP1019478B2 (fr)
AR (1) AR007691A1 (fr)
AU (1) AU3438197A (fr)
BR (1) BR9710021A (fr)
DE (1) DE69734073T3 (fr)
ES (1) ES2245795T5 (fr)
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DE69734073D1 (de) 2005-09-29
ZA975816B (en) 1998-12-30
WO1998000500A1 (fr) 1998-01-08
EP1019478A1 (fr) 2000-07-19
AR007691A1 (es) 1999-11-10
IN189556B (fr) 2003-03-29
DE69734073T2 (de) 2006-06-08
GB9613758D0 (en) 1996-09-04
ES2245795T3 (es) 2006-01-16
AU3438197A (en) 1998-01-21
BR9710021A (pt) 1999-08-10
DE69734073T3 (de) 2010-09-02
EP1019478B1 (fr) 2005-08-24
ES2245795T5 (es) 2010-10-20

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