WO1996026261A1 - Detergents contenant des enzymes - Google Patents

Detergents contenant des enzymes Download PDF

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Publication number
WO1996026261A1
WO1996026261A1 PCT/EP1996/000668 EP9600668W WO9626261A1 WO 1996026261 A1 WO1996026261 A1 WO 1996026261A1 EP 9600668 W EP9600668 W EP 9600668W WO 9626261 A1 WO9626261 A1 WO 9626261A1
Authority
WO
WIPO (PCT)
Prior art keywords
bleach
wash
enzyme
minutes
weight
Prior art date
Application number
PCT/EP1996/000668
Other languages
English (en)
Inventor
Howard Norman Richmond
Brian John Akred
Original Assignee
Albright & Wilson Uk 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
Priority claimed from GBGB9503183.7A external-priority patent/GB9503183D0/en
Priority claimed from GBGB9510121.8A external-priority patent/GB9510121D0/en
Priority claimed from GBGB9513841.8A external-priority patent/GB9513841D0/en
Priority claimed from GBGB9521623.0A external-priority patent/GB9521623D0/en
Application filed by Albright & Wilson Uk Limited filed Critical Albright & Wilson Uk Limited
Priority to AU48772/96A priority Critical patent/AU4877296A/en
Publication of WO1996026261A1 publication Critical patent/WO1996026261A1/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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • 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
    • 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
    • C11D3/38672—Granulated or coated enzymes

Definitions

  • the present invention re'ates to enzyme containing detergents, and especialh laundry detergents.
  • Detergents contain surfactants to remove hydrophobic soil, usually builders to increase the efficiency of the surfactant, stain removing agents and diluents, as well as various minor ingredients such as soil suspending agents, fluorescent brighteners. foam inhibitors or promoters. pH modifiers, textile conditioners, dyes, perfumes and preservatives.
  • Stains fall into two main categories. Many stains are decolorised by a chemical bleach which is an oxidising agent usually a peroxygen bleach such as sodium perborate, percarbonate or perphosphate or else a chlorine based oxidant such as sodium hypochlorite. chlorocyanurate or sodium chlorate.
  • a chemical bleach which is an oxidising agent usually a peroxygen bleach such as sodium perborate, percarbonate or perphosphate or else a chlorine based oxidant such as sodium hypochlorite. chlorocyanurate or sodium chlorate.
  • Laundry enzymes are enzymes which attack various organic stains, and which are adapted to function in laundry detergent formulations (eg. at high pH such as 8 to 12 and in the presence of other laundry detergent ingredients).
  • Chemical bleaches such as perborate, are effective at elevated temperatures e.g. 50 to 100°C but do not provide effective bleaching at the lower temperatures which are often used for reasons of economy in domestic washing appliances, unless an activator is present.
  • the most commonly used bleach activator is tetraacetyl ethylenediamine (TAED). which is incorporated in almost all perborate-containing laundry detergents.
  • our invention provides a method of laundering clothes by agitating then during a wash cycle of from 15 to 40 minutes in a wash liquor comprising surfactant and enzyme characterised in that a bleach is released into said wash liquor from 20 seconds to 20 minutes after said enzyme and from 5 to 20 minutes prior to the conclusion of the wash cvcle.
  • Laundering in said liquor is preferably continued for from 10 to 20 e.g. 12 to 18 minutes after release of the bleach, preferably at elevated temperatures, especially temperatures above 30°C e.g. 40 to 100°C and/or in the presence of a bleach activator such as tetraacetyl ethvlenediamine.
  • a bleach activator such as tetraacetyl ethvlenediamine.
  • our invention pro ⁇ ides a detergent composition of the type which comprises at least 1 % weight of a surfactant, a functional amount of an enzyme adapted to be incorporated in detergent compositions to remo ⁇ e or ameliorate enzyme treatable stains: 0 1 to 70° o weight of an oxidising bleach, optionalh an effecm e amount of a bleach activator and optionalh up to 80° o eight of detergent builder characterised in that said oxidising bleach is provided with a bleach-compatible, preferabh inorganic coating adapted, on contact with wash water, substantialh to dela ⁇ . but not prevent, the release of said bleach into the wash water, and/or.
  • a bleach activator is present, in that said bleach activator is provided with an inorganic coating constituting at least 10% of the weight of the coated activator and adapted to delay but not prevent the release of said activator to said wash w r ater.
  • the coating is preferably adapted to delay the release of the bleach by from 20 seconds up to 20 minutes.
  • the delay may be measured by adding 0.2g of the coated bleach to 400g water containing 3mls N/10 potassium permanganate at 20°C and comparing the time taken for the pink colouration to disappear or turn brown with that observed using uncoated bleach.
  • the bleach may be separately dosed to the wash liquor, e.g. using automatic dosing equipment built into the washing machine, and timed to release the bleach into the wash liquor within 20 minutes of the commencement of the wash stage.
  • the preferred delay is from 1 to 7 minutes e.g. from 1.5 to 6 minutes.
  • our invention provides equipment for laundering comprising a washing chamber adapted to agitate laundry with wash liquor during a 15 to 40 minute wash cycle, means for inserting and withdrawing laundry into and from said washing chamber, means for supplying water to said washing chamber at the commencement of said wash cycle, means for draining wash liquor from said wash chamber at the conclusion of said wash cycle and automatic dosing means adapted to dose detergent to said chamber before and/or during said wash cycle characterised in that said dosing means comprises a first doser adapted to dose enzyme-containing detergent to said chamber at the latest 15 minutes prior to the conclusion of said wash cycle and a second doser adapted to dose bleach to said washing chamber from 20 seconds to 20 minutes after the dosing of said enzyme-containing surfactant and from 5 to 20 minute prior to the conclusion of said wash cycle.
  • the enzyme is typically a protease and especially one adapted to act at alkaline pH. eg 7.5 to 10.
  • Other laundry enzymes include amylase. lipases. cellulases and decarboxylases.
  • the enzyme is present in an amount adapted to substantialh' reduce or remove enzyme treatable stains.
  • the enzymes may be present according to our invention in hitherto conventional amounts to provide a composition with greatly (eg. up to 100%) enhanced bleaching effects on enzyme treatable stains, without substantial loss of efficiency against oxidisable stains.
  • the amount of enzyme may be reduced by up to 50% and sometimes as much as 90% compared with currently preferred levels by use of bleaching systems according to the invention, without substantial loss of performance against either enzyme treatable or oxidisable stains.
  • enzymes can account for up to a third of the cost of a laundry detergent. The invention can therefore provide substantial economic savings.
  • detergent compositions with a total protease activity of from 0.005 to 2 Kilo Novo Protease Units per gram eg. 0.01 to 1 especially 0J to 0.5 KNPU per gram.
  • detergents which have an amylase activity from 0.05 to 20 Kilo Novo Units per gram. eg. 0J to 10 especially 0.5 to 5.
  • the bleach is typically a perborate, percarbonate or pe ⁇ hosphate. such as a peroxyhydrate of tetra sodium pyrophosphate. but may alternatively or additionally comprise a chlorinating bleach.
  • the bleach is normally present in proportions of from 0.5 to 30% based on the weight of the composition.
  • the uncoated particles preferably have a size between 200 ⁇ and 2mm more preferably 500 ⁇ to 1.5mm and an average size of 0.5 to 1.5mm.
  • references to the coating of bleach may additionally or alternatively apply to the coating of bleach activator mutatis mutandis.
  • the bleach is preferably coated with a relatively thick layer (eg. more than 10% preferably more than 15% especially more than 20% most preferably more than 30% by weight, based on the total weight of the coated bleach) of a bleach-compatible inorganic solid.
  • the inorganic solid is preferably an ingredient normally included in laundry detergents, eg. as a builder or filler. Builders commonly used include sodium tripolyphosphate. zeolite and sodium carbonate. Fillers typically comprise sodium sulphate. It is preferred that the coating consists, at least predominantly, of slowly water soluble inorganic salts such as sodium tripoly phosphate or sodium sulphate, which will substantially delay the dissolution of the coated bleach.
  • the coating may comprise any bleach activator present. By using normal ingredients of the detergent as.
  • the coating it is possible to use very thick coatings, eg. up to 400% by weight of the bleach or even higher without excessively diluting the amount of bleach in the formulation. However, we generally prefer thicknesses of from 25 to 100% of the total weight of the coated bleach.
  • the preferred thickness of the coating is dependent on its solubility, and in particular its rate of solubility, and its permeability, which may depend on its integrity as well as its composition.
  • the method of application can therefore can therefore be of significance.
  • the coating be selected so as to permit substantially complete dissolution of the bleach during a normal wash cycle, but little or. preferably, no release of available oxygen into the wash liquor during the early stages of the cycle.
  • the bleach is in the form of granules which release less than 10% by weight of their available oxygen, more preferably less than 5%. eg. less than 1%. in the first ten seconds after contact of 1 gm coated bleach per litre with water at 40°C and more than 90% preferably 100% after 8 minutes, more preferably after 7 minutes especially after 5 minutes. It has been found that sodium sulphate is effective at proportions of 20 to 70% by weight on particles of 1 mm average size. Sodium tripolyphosphate may require or tolerate higher proportions, eg. over 100% by weight of the coated granule.
  • the coating is preferably substantially inorganic, since many of the organic coatings which have been used in the past to provide controlled release of various kinds of active ingredients are chemically incompatible with strong oxidising agents and may even cause fire or explosion hazards.
  • Suitable organic materials for use in this way may include low melting waxes, oils such as silicone and mineral oils, surfactants, film forming polymers such as polyvinyl alcohol, polyvinyl pyrrolidone and polycarboxylates including polymaleates and polyacrylates. proteins such gelatin and casein, gums such as gum tragacanth. guar gum. gum benzoin or gum acacia, cellulose derivatives such as methyl cellulose or carboxy methyl cellulose, carbohydrates such as starch, dextrin or maltose and phospholipids such as lecithin.
  • the organic coating may be one that melts or dissolves in the wash water at normal wash temperature or may be physically disrupted by the washing action.
  • the surfactant is preferably any of the conventional laundry surfactants.
  • the detergent formulations of the invention typically contain from 1% to 90% by weight of surfactant, more usually 2% to 70% eg. 3% to 60% especially 4% to 50%. preferably 5% to 40%. more preferably 6% to 30%. most preferably 7% to 20%.
  • the surfactant may be. or may comprise, one or more anionic surfactants such as an alkyl benzene sulphonate. alkyl sulphate, alkyl ether sulphate, paraffin sulphonate. olefin sulphonate. alkyl ether sulphonate. alkylphenyl sulphate, alkyl phenyl ether sulphate, alkyl sulphosuccinate.
  • alkyl sulphosuccinamate alkyl isethionate. alkyl sarcosinate. soap, alkyl ether carboxylate. alkyl ether polycarboxylate. alkyl tauride. alkyl phosphate, alkyl ether phosphate or alkyl or thiol capped polyelectrolytes such as an alkylthiol capped polymaleic acid.
  • alky l groups in this context refer to C 8 to :: straight or branched chain alkyl or alkenyl groups.
  • "Ether” refers to glyceryl. mono- or poly- ethyleneoxy. mono or poly propyleneoxy. or mixed ethylenoxy/propyleneoxy, glyceryl/ethyleneoxy, glyceryl/propyleneoxy or glyceryl/ethyleneoxy/propyleneoxy.
  • the cation of the aforesaid anionic surfactants is usually sodium but may also be potassium or mono-, di-or tri-alkylolamine. Less commonly the cation may be lithium, ammonium, calcium, magnesium, zinc or a mono- di- or tri- alkyl amine such as isopropylamine or trimethylamine.
  • the surfactant may also be. or may comprise, one or more non-ionic surfactants such as the polyalkoxylated derivatives of alcohols, carboxylic acids, alkyl phenols, alkylamines, alkanolamides. or glyceryl or sorbitan esters, wherein each compound has an "alkyl" group as hereinbefore defined, and the polyalkylene oxy group comprises from 1 to 50 ethyleneoxy and/or propyleneoxy groups.
  • non-ionic surfactants such as the polyalkoxylated derivatives of alcohols, carboxylic acids, alkyl phenols, alkylamines, alkanolamides. or glyceryl or sorbitan esters, wherein each compound has an "alkyl" group as hereinbefore defined, and the polyalkylene oxy group comprises from 1 to 50 ethyleneoxy and/or propyleneoxy groups.
  • the non-ionic surfactant may be an alkanolamide. eg. a mono- or di-alkanolamide. a lactobionamide. an alkylpolyglycoside or an amine oxide, or an alkyl or thiol capped polyvinyl alcohol or polyvinylpyrrolidone. or a sugar ester.
  • the surfactant may be. or may comprise, one or more amphoteric surfactants such as a betaine or sulphobetain. and/or one or more cationic surfactants such as an alkyl trimethyl ammonium, alkyl pyridinium. alkyl dimethylbenzylammonium. alkyl isoquinolinium. alkyl imidazoline or alkylamido amine.
  • the counter ion of the cationic surfactant may typicallv be chloride, methosulphate. formate, acetate, citrate, lactate. tartrate or bromide.
  • mixtures of anionic and/or non-ionic surfactants with amphoteric surfactants are also favoured, as are mixtures of cationic with amphoteric surfactants, with or without non-ionics.
  • Mixtures of anionic with cationic surfactants are not normallv favoured.
  • the detergent composition typically contains a total of up to 90% by weight of builder, in addition to the bleach, which may also function as a builder in the formulation, and including any builder present in the bleach coating.
  • the detergent formulation contains from 1 % to 80% builder, eg. 5% to 75%. more usually 10% to 70% preferably 15% to 60%. more preferably 20% to 50%. most preferably 25% to 40% by weight based on the total weight of the composition.
  • the builder may be any substance that assists the action of the surfactant by ameliorating the effects of calcium in the wash liquor and/or maintaining alkalinity in the wash.
  • the builder may for example be. or may comprise, an alkali metal orthophosphate or condensed phosphate, especially sodium tripolyphosphate. tetrasodium or tetrapotassium pyrophosphate or sodium tetraphosphate. or a phosphonate. zeolite, citrate, ethylenediamine tetracetate. nitrilotriacetate. silicate or carbonate.
  • the detergent compositions of this invention usually contain a filler or diluent which is typically sodium sulphate, in propo ⁇ ions up to 80%. more usualh 1 to 60% by weight. Liquid detergents containing water as diluent are also provided.
  • detergent formulations of this invention may optionally contain any of the detergent ancillary ingredients.
  • detergent ancillary ingredients will be used herein to include all those ingredients other than surfactant, oxidising bleach, enzyme, builder and any filler or diluent, which have been or may be used to enhance the performance, appearance, pourability. stability, fragrance or ease of use of detergent compositions.
  • the term includes, for instance, soil suspending agents such as sodium carboxvmethvl cellulose, optical brighteners. photoactive bleaches, chelating agents, sequestrates, buffers, foaming agents, foam stabilisers, antifoams. preservatives, biocides. bleach activators, enzyme stabilisers, hydrotropes. polymers, dyes, vegetable oils, mineral oils, pigments, fragrances, abrasives, perfume enhancers and fabric conditioners, including cationic fabric conditioners and inor ⁇ anic fabric conditioners such as bentonite.
  • soil suspending agents such as sodium carboxvmethvl cellulose, optical brighteners.
  • photoactive bleaches chelating agents, sequestrates, buffers, foaming agents, foam stabilisers, antifoams. preservatives, biocides. bleach activators, enzyme stabilisers, hydrotropes. polymers, dyes, vegetable oils, mineral oils, pigments, fragrances, abrasives, perfume enhancers and fabric
  • compositions of the invention preferably contain soil suspending agents such as sodium carboxymethyl cellulose typically in proportions of from 0.01% to 3% by weight based on the weight of the composition, especially 0.1 % to 2% eg. 0.5% to 1.5%.
  • soil suspending agents such as sodium carboxymethyl cellulose typically in proportions of from 0.01% to 3% by weight based on the weight of the composition, especially 0.1 % to 2% eg. 0.5% to 1.5%.
  • compositions typically contain fragrances, dyes, pigments and/or preservatives in a total proportion of from 0.1% to 5% by weight, eg. 0.5% to 3% by weight based on the total weight of the composition.
  • compositions of the invention may also comprise conventional amounts of bleach activators such a tetracetylethylenediamine.
  • foam control agents such as silicone antifoams and/or mineral oils where the compositions are intended for use in front loading washing machines, or foam boosters where the products are intended for hand washing or use in top loadin-i washine machines.
  • Detergent ancillary ingredients are normalh present in a total concentration below 10% bv weight based on the total composition.
  • the particles of bleach and/or activator may be coated using powder, slurry or solution coating techniques.
  • a spray evaporator/agglomerator can be used for this purpose.
  • Powder coating may be accomplished by establishing differential air flow rates within a fluidised bed e.g. using baffles. It is possible to spray the coating material onto the particles in an agglomeration zone in the spray agglomerator.
  • the bleach may be coated by spraying a slurry or solution onto a fluidised bed of the bleach.
  • products of the invention may be made by pelletising. marumerising or tabletting and references to particles and granules are to be construed broadly covering pellets, marumes and tablets without any limitations of shape or size other than those imposed by practical and commercial considerations.
  • test formulations were freshh prepared and used in a Miele washing machine on the ' cotton short wash" c ⁇ cle w ith "water plus” operating
  • the test formulation dose used was 50g per wash
  • the water hardness was 200 ppm calcium carbonate W ashes were carried out at 40°C and 60°C
  • the pe ⁇ hosphate granules were spray-coated with a 30 wt% sodium sulphate solution to give a final sodium sulphate coating weight of 50% based on the weight of the pe ⁇ hosphate granules.
  • the spray-coating conditions are listed below:
  • Atomising air pressure 1.2 bar
  • wash performance of the coated pe ⁇ hosphate was compared to an uncoated perborate standard.
  • the wash test conditions were the same as used in Example 1.
  • Enzyme Sensitive Stain Removal is much enhanced using the coated pe ⁇ hosphate.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Des vêtements sont lavés par agitation dans un cycle de lavage durant 15 à 40 minutes, par mise en contact avec une liqueur de lavage aqueuse qui contient un tensioactif ainsi qu'un enzyme spécifique de lavage de linge, et libère un agent de blanchiment dans ladite liqueur, 20 secondes à 20 minutes après l'enzyme, et 10 à 20 minutes avant la fin du cycle de lavage. Cette libération peut s'effectuer par addition à l'enzyme d'un agent de blanchiment enrobé, ou par dosage mécanique.
PCT/EP1996/000668 1995-02-18 1996-02-19 Detergents contenant des enzymes WO1996026261A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48772/96A AU4877296A (en) 1995-02-18 1996-02-19 Enzyme detergents

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GBGB9503183.7A GB9503183D0 (en) 1995-02-18 1995-02-18 Coated bleach
GB9503183.7 1995-02-18
GB9510121.8 1995-05-16
GBGB9510121.8A GB9510121D0 (en) 1995-05-16 1995-05-16 Enzyme detergents
GB9513841.8 1995-07-07
GBGB9513841.8A GB9513841D0 (en) 1995-07-07 1995-07-07 Enzyme detergents
GBGB9521623.0A GB9521623D0 (en) 1995-10-21 1995-10-21 Enzyme detergents
GB9521623.0 1995-10-21

Publications (1)

Publication Number Publication Date
WO1996026261A1 true WO1996026261A1 (fr) 1996-08-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/000668 WO1996026261A1 (fr) 1995-02-18 1996-02-19 Detergents contenant des enzymes

Country Status (2)

Country Link
AU (1) AU4877296A (fr)
WO (1) WO1996026261A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791647A3 (fr) * 1996-02-21 1998-02-25 Clariant GmbH Agent de blanchement
DE19704634A1 (de) * 1997-02-07 1998-08-27 Henkel Kgaa pH-gesteuerte Freisetzung von Waschmittelkomponenten
WO2003014458A1 (fr) * 2001-08-10 2003-02-20 Henkel Kommanditgesellschaft Auf Aktien Procede de lavage
WO2014139662A1 (fr) * 2013-03-15 2014-09-18 Weylchem Switzerland Ag Procédé de lavage et de nettoyage de textiles

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2233393A2 (en) * 1973-06-18 1975-01-10 Solvay Peroxy based detergent compsns. - contg. acetylated dioxime activator coated with mixed alkali metal (bi)carbonates and sulphates for storage stability
GB1381121A (en) * 1971-02-12 1975-01-22 Unilever Ltd Treatment of detergent formulation components
EP0206959A2 (fr) * 1985-06-28 1986-12-30 Elf Atochem S.A. Procédé de blanchiment de linge domestique dans un cycle de lavage
WO1989008695A1 (fr) * 1988-03-14 1989-09-21 Novo-Nordisk A/S Composition particulaire stabilisee
EP0546815A1 (fr) * 1991-12-11 1993-06-16 Unilever Plc Percabonate de sodium
WO1995017495A1 (fr) * 1993-12-21 1995-06-29 The Procter & Gamble Company Composition detergente contenant du percarbonate et de l'amylase
WO1995028467A1 (fr) * 1994-04-13 1995-10-26 The Procter & Gamble Company Detergents contenant une enzyme et un systeme de peroxyacide de blanchiment a liberation retardee
WO1995028463A1 (fr) * 1994-04-13 1995-10-26 The Procter & Gamble Company Detergents a teneur reduite en agent de blanchiment au peroxyde, contenant un agent chelateur et des enzymes
WO1995029225A1 (fr) * 1994-04-22 1995-11-02 The Procter & Gamble Company Compositions de blanchiment comprenant une enzyme protease

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1381121A (en) * 1971-02-12 1975-01-22 Unilever Ltd Treatment of detergent formulation components
FR2233393A2 (en) * 1973-06-18 1975-01-10 Solvay Peroxy based detergent compsns. - contg. acetylated dioxime activator coated with mixed alkali metal (bi)carbonates and sulphates for storage stability
EP0206959A2 (fr) * 1985-06-28 1986-12-30 Elf Atochem S.A. Procédé de blanchiment de linge domestique dans un cycle de lavage
WO1989008695A1 (fr) * 1988-03-14 1989-09-21 Novo-Nordisk A/S Composition particulaire stabilisee
EP0546815A1 (fr) * 1991-12-11 1993-06-16 Unilever Plc Percabonate de sodium
WO1995017495A1 (fr) * 1993-12-21 1995-06-29 The Procter & Gamble Company Composition detergente contenant du percarbonate et de l'amylase
WO1995028467A1 (fr) * 1994-04-13 1995-10-26 The Procter & Gamble Company Detergents contenant une enzyme et un systeme de peroxyacide de blanchiment a liberation retardee
WO1995028463A1 (fr) * 1994-04-13 1995-10-26 The Procter & Gamble Company Detergents a teneur reduite en agent de blanchiment au peroxyde, contenant un agent chelateur et des enzymes
WO1995029225A1 (fr) * 1994-04-22 1995-11-02 The Procter & Gamble Company Compositions de blanchiment comprenant une enzyme protease

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791647A3 (fr) * 1996-02-21 1998-02-25 Clariant GmbH Agent de blanchement
DE19704634A1 (de) * 1997-02-07 1998-08-27 Henkel Kgaa pH-gesteuerte Freisetzung von Waschmittelkomponenten
WO2003014458A1 (fr) * 2001-08-10 2003-02-20 Henkel Kommanditgesellschaft Auf Aktien Procede de lavage
WO2014139662A1 (fr) * 2013-03-15 2014-09-18 Weylchem Switzerland Ag Procédé de lavage et de nettoyage de textiles

Also Published As

Publication number Publication date
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