EP0615540B1 - Procede de preparation des particules antimousse actives au rincage - Google Patents

Procede de preparation des particules antimousse actives au rincage Download PDF

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Publication number
EP0615540B1
EP0615540B1 EP93900775A EP93900775A EP0615540B1 EP 0615540 B1 EP0615540 B1 EP 0615540B1 EP 93900775 A EP93900775 A EP 93900775A EP 93900775 A EP93900775 A EP 93900775A EP 0615540 B1 EP0615540 B1 EP 0615540B1
Authority
EP
European Patent Office
Prior art keywords
soap
foam
particles
slurry
weight
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP93900775A
Other languages
German (de)
English (en)
Other versions
EP0615540A1 (fr
EP0615540A4 (en
Inventor
Alan David Brinson
David Xavante Cumming
David William York
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to ES93900775T priority Critical patent/ES2142859T3/es
Priority to EP93900775A priority patent/EP0615540B1/fr
Publication of EP0615540A1 publication Critical patent/EP0615540A1/fr
Publication of EP0615540A4 publication Critical patent/EP0615540A4/en
Application granted granted Critical
Publication of EP0615540B1 publication Critical patent/EP0615540B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0094—High foaming 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • 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
    • C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
    • C11D13/14—Shaping
    • C11D13/20—Shaping in the form of small particles, e.g. powder or flakes
    • 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
    • C11D3/0026—Low foaming or foam regulating compositions

Definitions

  • the present invention is concerned with a process for making rinse-active foam control particles for inclusion in a detergent composition, i.e. foam control particles mainly active in the rinse-cycle of a laundry process.
  • suds-control during the washing cycle of a laundry process is important, so as to avoid negative interference with the action of the wash liquor upon the fabrics, it is also known that suds-control during the rinse cycle of a laundry process is desirable;
  • Soaps of fatty acids have been used for such a rinse-active suds control function, and they have usually been spray-dried together with the rest of the detergent composition.
  • EP-A-0 432 449 published on 19th June 1991, provides a composition of powdered detergent comprising a spray dried base powder with no soap, or a very low percentage of soap, and which further comprises soap which is "post added" by dry-mixing with the base powder.
  • GB-A-1 204 123 published on 3rd September 1970, discloses a process of mixing a surfactant containing detergent powder with other granules, the granules comprising an organic extrudable solid.
  • One such organic extrudable solid is a sodium salt of C8 to C22 fatty acid.
  • GB-A-0 486 819 published on 10th June 1938, discloses a process for producing a soap powder by converting a partially- dried soap into a plastic or semi-fluid mass, disintegrating the soap mass into discrete particles, and solidifying the particles.
  • the present invention provides a process for making rinse-active foam-control particles for inclusion in a detergent composition in powder form.
  • the rinse-active foam-control particles comprise a soap consisting essentially of a soap of fatty acid of which at least 80% by weight contains from 16 to 18 carbon atoms, the geometric mean particle size of the particles being inferior to 1mm, preferably inferior to 0.4 mm.
  • the process of the present invention comprises the steps of drying the fatty acid soap slurry to a moisture level inferior to 9% by weight of the slurry, pressing it into noodles, and grinding the noodles into a fine powder.
  • the antifoam particles are the antifoam particles.
  • the foam-control particles made by the process of the invention consist essentially of a soap of fatty acids of which at least 80% by weight contains from 16 to 18 carbon atoms; preferred fatty acids are tallow or tallow/coconut mixtures at a weight ratio of tallow to coconut not less than 70/30; particularly preferred is a 90/10 tallow/coconut mixture.
  • Suitable cations which render the soap water soluble and/or dispersible include sodium, potassium, ammonium, monoethanolammonium, diethanolammonium, triethanolammonium or tetramethylammonium. Sodium ions are preferred.
  • the particles of the invention have a particle size, which is such that the geometric mean particle size, which is the median of the cumulative weight distribution, should be less than 1 mm and preferably less than 0.4 mm.
  • the individual particle size of a particle is meant as being the sum of the longest and the shortest dimension of the particle divided by two.
  • the cumulative weight distribution of the particles can be conveniently measured by sieving with an air-fluidized sieve.
  • the particles herein optionally include a free-flowing agent such as amorphous silica, at levels not exceeding 5% by weight of the particle.
  • a free-flowing agent such as amorphous silica
  • the process herein contains essentially the steps of drying a fatty acid soap slurry to a low moisture level, i.e. a moisture level not exceeding 9%, preferably not exceeding 5% by weight of the slurry, then pressing the slurry into noodles, and successively grinding the noodles to a fine powder with the particle size required herein.
  • control of the moisture level is a particularly critical feature of the process herein, since successful grinding to the required particle size will not be possible without meeting the claimed moisture level.
  • Drying of the soap slurry is preferably achieved under vacuum. Supplementary drying during the grinding process may be appropriate, and achieved for example in an air classifier.
  • a typical method to measure the moisture level in the soap slurry and/or the noodles is a solvent distillation method, using a Bidwell® apparatus.
  • Foam control particles made by the process of the present invention are suitable for use in a detergent composition in powder form, comprising a surface-active agent and the foam control particles such as described above. Addition of the particles herein in detergent compositions can be achieved by e.g. dry-mixing. The amount of foam control particles is typically from 0.25 to 5% by weight of the composition, depending on the type of detergent composition involved.
  • a wide range of surfactants can be used in the detergent compositions.
  • anionic surfactants are particularly suitable herein, especially mixtures of sulphonate and sulphate surfactants in a weight ratio of from 5:1 to 1:2, preferably from 3:1 to 2:3, more preferably from 3:1 to 1:1.
  • Preferred sulphonates include alkyl benzene sulphonates having from 9 to 15, especially 11 to 13 carbon atoms in the alkyl radical, and alpha-sulphonated methyl fatty acid esters in which the fatty acid is derived from a C 12 -C 18 fatty source preferably from a C 16 -C 18 fatty source.
  • the cation is an alkali metal, preferably sodium.
  • Preferred sulphate surfactants are alkyl sulphates having from 12 to 18 carbon atoms in the alkyl radical, optionally in admixture with ethoxy sulphates having from 10 to 20, preferably 10 to 16 carbon atoms in the alkyl radical and an average degree of ethoxylation of 1 to 6.
  • alkyl sulphates herein are tallow alkyl sulphate, coconut alkyl sulphate, and C 14-15 alkyl sulphates.
  • the cation in each instance is again an alkali metal cation, preferably sodium.
  • One class of nonionic surfactants useful in the present invention are condensates of ethylene oxide with a hydrophobic moiety to provide a surfactant having an average hydrophilic-lipophilic balance (HLB) in the range from 8 to 17, preferably from 9.5 to 13.5, more preferably from 10 to 12.5.
  • HLB hydrophilic-lipophilic balance
  • the hydrophobic (lipophilic) moiety may be aliphatic or aromatic in nature and the length of the polyoxyethylene group which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desired degree of balance between hydrophilic and hydrophobic elements.
  • Especially preferred nonionic surfactants of this type are the C 9 -C 15 primary alcohol ethoxylates containing 3-8 moles of ethylene oxide per mole of alcohol, particularly the C 14 -C 15 primary alcohols containing 6-8 moles of ethylene oxide per mole of alcohol and the C 12 -C 14 primary alcohols containing 3-5 moles of ethylene oxide per mole of alcohol.
  • Nonionic surfactants comprises alkyl polyglucoside compounds of general formula RO (C n H 2n O) t Z x wherein Z is a moiety derived from glucose; R is a saturated hydrophobic alkyl group that contains from 12 to 18 carbon atoms; t is from 0 to 10 and n is 2 or 3; x is from 1.3 to 4, the compounds including less than 10% unreacted fatty alcohol and less than 50% short chain alkyl polyglucosides.
  • Compounds of this type and their use in detergent are disclosed in EP-B 0 070 077, 0 075 996 and 0 094 118.
  • nonionic surfactants are poly hydroxy fatty acid amide surfactants of the formula wherein R 1 is H, C 1-4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl or a mixture thereof, R 2 is C 5-31 hydrocarbyl, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof.
  • R 1 is methyl
  • R 2 is a straight C 11-15 alkyl or alkenyl chain such as coconut alkyl or mixtures thereof
  • Z is derived from a reducing sugar such as glucose, fructose, maltose, lactose, in a reductive amination reaction.
  • a further class of surfactants are the semi-polar surfactants such as amine oxides.
  • Suitable amine oxides are selected from mono C 8 -C 20 , preferably C 10 -C 14 N-alkyl or alkenyl amine oxides and propylene-1,3-diamine dioxides wherein the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups.
  • amphoteric surfactants such as polyamine-based species.
  • Cationic surfactants can also be used in the detergent compositions herein and suitable quaternary ammonium surfactants are selected from mono C 8 -C 16 , preferably C 10 -C 14 N-alkyl or alkenyl ammonium surfactants wherein remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups.
  • the detergent compositions can comprise from 1%-70% by weight of surfactant, but usually the surfactant is present in the compositions herein an amount of from 1% to 30%, more preferably from 10-25% by weight.
  • the detergent compositions herein preferably also contain a builder, which can be selected from phosphates, aluminosilicate ion exchangers (zeolites), and water-soluble monomeric or oligomeric carboxylate chelating agents such as citrates, succinates, oxydisuccinates, as well as mixtures of the above species.
  • a builder which can be selected from phosphates, aluminosilicate ion exchangers (zeolites), and water-soluble monomeric or oligomeric carboxylate chelating agents such as citrates, succinates, oxydisuccinates, as well as mixtures of the above species.
  • Suitable builder materials include alkali metal carbonates, bicarbonates and silicates, organic phosphonates, amino polyalkylene phosphonates and amino polycarboxylates, ethylene diamine tetraacetic acid and nitrilotriacetic acid.
  • Other suitable water-soluble organic salts are the homo- or co-polymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of this type are disclosed in GB-A-1,596,756. Examples of such salts are polyacrylates of MW 2000-5000 and their copolymers with maleic anhydride, such copolymers having a molecular weight of from 20,000 to 70,000, especially about 40,000.
  • ingredients which typically form part of a detergent composition in powder form include filler salts such as sodium sulphates, bleaching agents, such as sodium perborate and percarbonate, bleach activators, anti redeposition agents such as carboxymethyl cellulase, enzymes, such as proteases, amylases, lipases, and cellulases, brighteners, fabric softening clays, perfumes, dyes, pigments.
  • the detergent compositions herein can be of the "high-suds" type, and be designed for hand-wash or in upright washing machine utilization. In such executions, the level of foam control particles is typically from 2% to 5% by weight.
  • compositions of the invention can also be of the "low-suds” type and thus be adapted for use in washing machines of all types; in this latter category, detergent compositions encompass “compact” executions, where the density is typically above 550g/litre of composition, and the level of filler salt is typically below 5% by weight of the composition.
  • the level of foam-control particles is typically from 0.25% to 2%.
  • a suds-controlling agent active in the wash cycle is typically included, in addition to the rinse-active foam-control agents of the invention.
  • additional foam-control agents are preferably silicones.
  • Example I (“High Suds” execution) LAS 20% Sodium Tripolyphosphate 23% Sodium Silicate 6% CMC 0.15% Sodium Sulphate 34% Na Phosphonate 0.1% Sodium Carbonate 5% Copolymer AA/MA 2.5% Sodium Soap particles 3% Enzyme, brighteners, perfume and minors up to 100 Density 360g/l
  • Example II (“Low Suds” execution, in compact form) LAS 8% TAS 2% Nonionic 6% Sodium Carbonate 14% Sodium Citrate 6% Zeolite 20% Sodium Silicate 3% CMC 0.5% Sodium Sulphate 3.5% Na Phosphonate 0.4% Sodium Na Perborate Monohydrate 16% Sodium Soap particles 1% Silicone 0.5% Sodium Salt of Copolymer AA/MA 4% TAED 5% Enzyme, perfume, brighteners and minors up to 100 Density 700g/l

Claims (5)

  1. Procédé de préparation d'un agent antimousse, l'agent antimousse comprenant des particules antimousse actives au rinçage pour l'introduction dans une composition détergente sous forme de poudre, les particules antimousse actives au rinçage consistant essentiellement en un savon d'acides gras dans lequel au moins 80% en poids d'un savon d'acide gras contient de 16 à 18 atomes de carbone, la taille de particules moyenne géométrique des particules, qui est la moyenne de la distribution de poids cumulative, étant inférieure à 1 mm, et caractérisé en ce qu'une suspension d'acide gras est séchée à un taux d'humidité inférieur à 9% en poids de la suspension, pressée en nouilles, et les nouilles sont broyées en poudre fine.
  2. Procédé selon la revendication 1, caractérisé en ce que les particules antimousse ont une taille de particules moyenne géométrique inférieure à 0,4 mm.
  3. Procédé selon la revendication 1, caractérisé en ce que le savon d'acides gras est sélectionné parmi un savon de suif, et un savon de suif/noix de coco avec un rapport en poids du suif à la noix de coco qui n'est pas inférieur à 70/30.
  4. Procédé selon la revendication 1, caractérisé en ce que la suspension de savon est séchée à un taux d'humidité qui ne dépasse pas 5% en poids de la suspension.
  5. Procédé selon la revendication 1, caractérisé en ce que la suspension de savon est séchée sous vide.
EP93900775A 1991-12-03 1992-12-01 Procede de preparation des particules antimousse actives au rincage Expired - Lifetime EP0615540B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES93900775T ES2142859T3 (es) 1991-12-03 1992-12-01 Procedimiento para preparar particulas de control de espuma activas en el aclarado.
EP93900775A EP0615540B1 (fr) 1991-12-03 1992-12-01 Procede de preparation des particules antimousse actives au rincage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP91203149 1991-12-03
EP91203149A EP0544944A1 (fr) 1991-12-03 1991-12-03 Particules de contrôle de la mousse active dans le cycle de rinçage
PCT/US1992/010390 WO1993011216A1 (fr) 1991-12-03 1992-12-01 Particules antimousse actives au rinçage
EP93900775A EP0615540B1 (fr) 1991-12-03 1992-12-01 Procede de preparation des particules antimousse actives au rincage

Publications (3)

Publication Number Publication Date
EP0615540A1 EP0615540A1 (fr) 1994-09-21
EP0615540A4 EP0615540A4 (en) 1994-09-28
EP0615540B1 true EP0615540B1 (fr) 2000-03-15

Family

ID=8208047

Family Applications (2)

Application Number Title Priority Date Filing Date
EP91203149A Withdrawn EP0544944A1 (fr) 1991-12-03 1991-12-03 Particules de contrôle de la mousse active dans le cycle de rinçage
EP93900775A Expired - Lifetime EP0615540B1 (fr) 1991-12-03 1992-12-01 Procede de preparation des particules antimousse actives au rincage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP91203149A Withdrawn EP0544944A1 (fr) 1991-12-03 1991-12-03 Particules de contrôle de la mousse active dans le cycle de rinçage

Country Status (20)

Country Link
EP (2) EP0544944A1 (fr)
JP (1) JP3357053B2 (fr)
CN (1) CN1040022C (fr)
AT (1) ATE190644T1 (fr)
AU (1) AU3234193A (fr)
BR (1) BR9206856A (fr)
CA (1) CA2124790C (fr)
CZ (1) CZ123294A3 (fr)
DE (1) DE69230801T2 (fr)
EG (1) EG20160A (fr)
ES (1) ES2142859T3 (fr)
FI (1) FI942551A (fr)
HU (1) HUT67495A (fr)
MA (1) MA22726A1 (fr)
MX (1) MX9206959A (fr)
NO (1) NO942053D0 (fr)
PH (1) PH31575A (fr)
SK (1) SK63994A3 (fr)
TR (1) TR27153A (fr)
WO (1) WO1993011216A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310672A1 (de) * 1993-04-01 1994-10-06 Henkel Kgaa Herstellung rieselfähiger Waschmittel
US5972869A (en) * 1996-12-17 1999-10-26 Colgate-Palmolive Co Mildly acidic laundry detergent composition providing improved protection of fine fabrics during washing and enhanced rinsing in hand wash
US6150324A (en) * 1997-01-13 2000-11-21 Ecolab, Inc. Alkaline detergent containing mixed organic and inorganic sequestrants resulting in improved soil removal
US6773625B2 (en) 2002-08-26 2004-08-10 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Dry bleach compositions
CN1738899A (zh) * 2002-12-11 2006-02-22 诺和酶股份有限公司 洗涤剂组合物
RU2670442C2 (ru) * 2014-08-01 2018-10-23 Дзе Проктер Энд Гэмбл Компани Чистящие композиции с высоким содержанием жирных кислот
US10443020B2 (en) * 2015-12-02 2019-10-15 Conopco, Inc. Hard surface cleaning composition
WO2019075684A1 (fr) * 2017-10-19 2019-04-25 The Procter & Gamble Company Compositions de nettoyage contenant un mélange d'acides gras

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB486819A (en) * 1936-06-18 1938-06-10 Lever Brothers Ltd Improvements in soap products and in the manufacture thereof
DE1467613C3 (de) * 1965-08-20 1975-01-09 Henkel & Cie. Gmbh, 4000 Duesseldorf Waschmittel mit geringem Schaumvermögen
GB1204123A (en) * 1966-11-29 1970-09-03 Unilever Ltd Detergent composition
GB1237084A (en) * 1967-10-02 1971-06-30 Unilever Ltd Soap drying process
DE2327141C3 (de) * 1973-05-28 1978-10-05 Hoechst Ag, 6000 Frankfurt Gerüststoffe für Wasch- und Reinigungsmittel
BE6T1 (fr) * 1977-06-23 1980-01-11 Procter & Gamble Composition detergente
BE7T1 (fr) * 1977-06-29 1979-12-07 Procter & Gamble Compositions detergentes
EP0002084A1 (fr) * 1977-11-17 1979-05-30 THE PROCTER & GAMBLE COMPANY Compositions détergentes granulaires pour l'enlèvement amélioré de taches graisseuses
GR68037B (fr) * 1979-03-15 1981-10-27 Procter & Gamble
DE3069767D1 (en) * 1979-09-29 1985-01-17 Procter & Gamble Detergent compositions
GR74545B (fr) * 1980-11-28 1984-06-29 Procter & Gamble
GR76237B (fr) * 1981-08-08 1984-08-04 Procter & Gamble
US4687592A (en) * 1985-02-19 1987-08-18 The Procter & Gamble Company Detergency builder system
GB8518871D0 (en) * 1985-07-25 1985-08-29 Dow Corning Ltd Detergent foam control agents
GB8625474D0 (en) * 1986-10-24 1986-11-26 Unilever Plc Soap noodles
DE3834181A1 (de) * 1988-10-07 1990-04-12 Henkel Kgaa Fluessiges waschmittel
IT1236128B (it) * 1989-11-15 1993-01-08 Mira Lanza Spa Detersivo in polvere, ad elevato contenuto di tensioattivi nonionici e di saponi.

Also Published As

Publication number Publication date
NO942053L (no) 1994-06-02
TR27153A (tr) 1994-11-09
JPH07501575A (ja) 1995-02-16
ATE190644T1 (de) 2000-04-15
CA2124790A1 (fr) 1993-06-10
EP0615540A1 (fr) 1994-09-21
PH31575A (en) 1998-11-03
JP3357053B2 (ja) 2002-12-16
DE69230801T2 (de) 2000-11-02
EP0615540A4 (en) 1994-09-28
HUT67495A (en) 1995-04-28
HU9401356D0 (en) 1994-08-29
WO1993011216A1 (fr) 1993-06-10
FI942551A0 (fi) 1994-05-31
AU3234193A (en) 1993-06-28
MX9206959A (es) 1993-06-30
MA22726A1 (fr) 1993-07-01
EG20160A (en) 1997-08-31
FI942551A (fi) 1994-05-31
CZ123294A3 (en) 1995-02-15
CN1040022C (zh) 1998-09-30
BR9206856A (pt) 1995-05-02
DE69230801D1 (de) 2000-04-20
CN1075507A (zh) 1993-08-25
CA2124790C (fr) 1998-06-30
NO942053D0 (no) 1994-06-02
EP0544944A1 (fr) 1993-06-09
SK63994A3 (en) 1994-10-05
ES2142859T3 (es) 2000-05-01

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