GB2345066A - Detergent compositions - Google Patents

Detergent compositions Download PDF

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Publication number
GB2345066A
GB2345066A GB9828488A GB9828488A GB2345066A GB 2345066 A GB2345066 A GB 2345066A GB 9828488 A GB9828488 A GB 9828488A GB 9828488 A GB9828488 A GB 9828488A GB 2345066 A GB2345066 A GB 2345066A
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particle
weight
acid
alkyl
detergent composition
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GB9828488D0 (en
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Tiffany Alice Hensman
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Procter and Gamble Co
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Procter and Gamble Co
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Priority to GB9828488A priority Critical patent/GB2345066A/en
Publication of GB9828488D0 publication Critical patent/GB9828488D0/en
Priority to AU21790/00A priority patent/AU2179000A/en
Priority to PCT/US1999/029553 priority patent/WO2000039258A1/en
Publication of GB2345066A publication Critical patent/GB2345066A/en
Withdrawn legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38Cationic compounds
    • C11D1/52Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/526Carboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 are polyalkoxylated
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50Perfumes

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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)
  • Detergent Compositions (AREA)

Abstract

The invention provides a detergent composition which has an excellent cleaning performance and an improved perfume delivery, which comprises a perfume and a nonionic alkoxylated fatty acid amide of the formula: <EMI ID=1.1 HE=27 WI=62 LX=356 LY=887 TI=CF> <PC>wherein R<SB>1</SB> is a C<SB>12</SB>-C<SB>18</SB> alkyl or alkenyl group, R<SB>2</SB> is a C<SB>2</SB>-C<SB>4</SB> alkylene group, R<SB>3</SB> is a hydrogen or a C<SB>1</SB>-C<SB>4</SB> alkyl group, R<SB>4</SB> is a C<SB>1</SB>-C<SB>4</SB> alkyl group or hydrogen and n is a number from 3 to 12. Preferably the composition comprises an anionic surfactant and/ or a aluminosilicate builder. These compositions have been found to have an improved delivery to the wash.

Description

Detergent Compositions Field of the Invention The present invention relates to solid cleaning compositions which comprise particles containing specific nonionic surfactant and perfume which have improved perfume delivery. Also, the delivery to the wash is improved for compositions containing anionic surfactant and/or aluminosilicate builder and the specific nonionic surfactant.
Background to the Invention Detergent compositions traditionally employ nonionic surfactants, in particular ethoxylated alcohol surfactants having an ethylene number of from about 2 to 50.
These surfactants are often viscous. When formulating solid detergent compositions, these nonionic surfactants are often sprayed onto the particles of the detergent, thus coating the particles with the nonionic ethoxylated alcohols. These nonionic surfactants may also be used to incorporate other ingredients such as perfumes, dyes, brighteners in the product.
A problem related to the use of these nonionic etholylated alcohols, in particularly on the surface of detergent particles, is their tendency to migrate or'bleed'from the product. This may not only result in caking of the product upon storage but also the migration of other ingredients, such as for example dyes, brighteners, perfumes or enzymes, which is not desirable. Furthermore, the flowability and the handling of particle or compositions comprising these nonionic surfactants during manufacturing and during use is often poor, due to the viscosity of the nonionic surfactants, their tendency to migrate and cake.
It has also been found that these nonionic ethoxylated alcohols surfactant, gel upon contact with water. In particular, detergent particles comprising these nonionic surfactant on the surface, tend to become trapped in a gel upon contact with water and do not dissolve satisfactorily. Also, particles comprising the nonionic surfactants and anionic surfactants, in particular sulfate and/or sulphonate surfactants, have been found to have a tendency to gel upon contact with water. This problem occurs for example in particles in the dispensing drawer or in a dispensing aid, where upon contact with water, a gelling paste of the particles containing a nonionic surfactant coats is formed which does not dispense satisfactorily into the wash water.
However, omission of the nonionic surfactant, to avoid this problem is, is not always feasible, because the nonionic surfactants are needed for there surfactant performance and to help incorporation other ingredients into the products. For example, the incorporation of perfume without the presence of these nonionic surfactants has been found to result in a loss of perfume delivery to the fabrics. It is believed that this occurs, because the nonionic surfactant protects the perfume against interactions or reactions with other detergent actives, such as alkaline or acid compounds, or more importantly bleach.
The inventors have now found that the incorporation of specific nonionic polyalkoxylated fatty acid amide surfactants in solid detergent particles can overcome these problems.
The inventors have found that the incorporation in cleaning compositions of these specific nonionic polyalkoxylated fatty acid amide surfactants results in reduced loss of perfume performance loss, for example in bleach containing compositions, and reduced gelling of the particles, for example in compositions containing anionic surfactants and/or aluminosilictaes. Also, a reduced'bleeding'of detergent ingredients, an improved handling of the products, improved flowability of the product and at the same time improved dispensing of the product, can be achieved.
Furthermore, these nonionic polyalkoxylated fatty acid amide surfactants have been found to provide good surfactant performance.
Also, they have found that the use of these nonionic surfactants allows the reduction of the amount of nonionic alkoxylated alcohol surfactant, or even the omission thereof, whilst still obtaining good cleaning performance.
It is believed that the specific amide surfactants can prevent the perfume from reaction with other detergent actives, such as alkaline or acid compounds or more importantly bleach. It is believed that the reduced tendency of these specific amide surfactants, to form a gel, is due to its capacity to dissolve and solubilise other ingredients upon contact with water.
Furthermore, nonionic alkoxylated alcohol surfactants have a tendency to loose performance under hard water conditions. The inventors have surprisingly found that the nonionic polyalkoxylated amide surfactants remain a satisfactory surfactant performance under hard water conditions. This allows simplification of the builder system employed in the detergents or the reduction of the level of builders incorporated in the detergents.
Summarv of the Invention The present invention provides a solid detergent composition comprising a) of from 0.1 to 50% by weight of a nonionic polyalkoxylated fatty acid amide of the formula:
wherein R, is a C, z-C, 8 alkyl or alkenyl group, R2 is a C2-C4 alkylene group, R3 is a Cl-C4 alkyl group or preferably hydrogen, R4 is a C,-C4 alkyl group or preferably hydrogen and n is a number from 3 to 12; and b) from 0.01% to 10% by weight of a perfume.
The perfume and the nonionic polyalkoxylated fatty acid amide may preferably be in an intimate mixture, preferably in the form of a mixture to be sprayed onto detergent ingredients or detergent particles.
Preferably, the composition comprises a particle comprising the nonionic polyalkoxylated fatty acid amide and an anionic surfactant preferably intimately mixed with one another, or alternatively a particle containing an anionic surfactant and a spray-on component containing the nonionic alkoxylated fatty acid amide.
Preferably, the composition comprises an aluminosilicate builder and the composition is preferably a phosphate-free composition.
The composition preferably comprises bleach, preferably oxygen bleach, preferably comprising an peroxygen compound.
The invention also relates to the use of a nonionic alkoxylated fatty acid amide surfactant in or on, such as sprayed onto, detergent particles for improvement of the delivery to the wash of the detergent particles comprising anionic surfactant or alumnosilicate or mixtures thereof.
The invention also relates to the use of a nonionic alkoxylated fatty acid amide surfactant in detergent compositions comprising a perfume component for reduction of the loss of perfume performance, in particular in bleach-containing compositions.
Detailed Description of the Invention Detergent compositions The solid compositions herein are preferably in the form of granules, pastilles, extrudates or tablets. Preferably, the compositions are laundry or dish washing detergent composition.
The detergent compositions of the invention have an reduced loss of perfume performance, which includes a reduced loss of perfume delivery to the wash or the fabrics in the wash, due to interaction between the perfume component and other detergent ingredients in the composition, in particular bleach or alkaline or acid components..
The detergent compositions of the invention have an improved delivery of the detergent composition to the wash. This includes for the purpose of the invention, that the composition or components thereof have a reduced gelling upon contact with water, in particular upon contact with small amounts of water at the beginning of the wash, such as in the dispensing drawer or the interior of the washing machine; have an improved dispensing from the dispensing drawer or from a dispensing device; and/or have an improved dissolution into the wash water.
When used herein,'intimately mixed'means for the purpose of the invention that components of the particle are substantially homogeneously divided in the particle, and'intimate mixture'should be interpreted accordingly.
In a preferred embodiment the composition comprises a particle containing the nonionic amide surfactant and the perfume. Preferably the particle also comprises an anionic surfactant. The particle may also comprise an aluminosilicate builder.
It may be preferred that the particle comprises an intimate mixture of said nonionic amide surfactant and anionic surfactant and optionally also the perfume, preferably such that the particle comprises the anionic surfactant at a level of 2% or even 3% to 50% or even 40% by weight of the particle.
The particle may have any form and can be made by any known method involving the mixing of the ingredients, which can be part of a granulation process, including spray-drying process, spherisation process, extrusion process, pastillation processes and in particular agglomeration processes, or be part of a tabletting process or flaking process, as described herein. The particle may preferably be made by agglomerating the components with one another, optionally in the presence of an additional liquid or additional powder material, such as inorganic salts, silicates, aluminosilicates, organic acids or salts. It may also be preferred that the particle is prepared by a process whereby any sold component are melted and mixed with any liquid component, in general the alkoxylated fatty acid amides, whereafter any additional powdered components can be dispersed with this liquid/melted mixture. The resulting mixture may optionally be agglomerated to obtain an homogeneously mixture. The mixture is then solidified to form the particle, preferably by solidifying the melt by reducing the process temperature.
In one embodiment of the invention, the alkoxylated fatty acid amide, or part thereof, is comprised in a spray-on component, which may contain the perfume or part thereof, which is sprayed onto the particle comprising an anionic surfactant, preferably at a level of from 2% or even 3% to 50% or even 40% by weight of the particle and/or aluminosilicate builder, by any spray-on method known in the art.
Preferably, the particle is present as a separate granule in the composition. However, it may be preferred that the composition is in the form of a tablet or coarse granules, droplets or pastilles which then comprise the particle of the invention intimately mixed with other ingredients.
The compositions preferably comprise additional particles which do not comprising the alkoxylated fatty acid amide.
The particle is preferably present at a level of from 0.5% to 80% by weight, more preferably from 1% to 50% by weight, even more preferably from 5% to 35% by weight of the composition.
. The particle preferably has a weight average particle size of from 150 microns to 2000 microns, or it may be preferred to be from 200 microns to 1600 microns, more preferably from 400 microns to 1400 microns or even to 1000 microns, as measured by use of Tyler sieves.
The particle and also the composition preferably has a density of from 400gr/litre to 1500gr/litre, preferably from 450gr/litre to 1200gr/litre or even from 550gr/litre to 900gr/litre.
The composition of the invention has a reduced sensitivity to water hardness and may thus employ reduced levels of builder. Thus, the detergent compositions herein preferably comprise a builder system up to 60% by weight, more preferably up to 50% or even up to 40% by weight and lower levels may be preferred, for example up to 35% or even 30% by weight.
The level of nonionic alkoxylated fatty acid amide surfactant is preferably from 0.5% to 30% by weight of the composition or particle, preferably from 1. 0% to 20% by weight of the particle or composition, or more preferably from 1.5% to 15% by weight of the composition or particle or from 3% to 16% by weight of the particle.
The level of anionic surfactant, when present is preferably from 1.0% to 80% by weight of the composition or particle, preferably from 2% or 3% to 50% or 40% by weight of the particle or composition.
It may be preferred that the level of nonionic alkoxylated alcohol surfactant is from 0% to 5% by weight of the particle and preferably from 0% to 10% by weight of the composition, more preferably from 0% to 3%, or even 2% by weight of the particle or the composition. It may even be preferred that substantially no nonionic polyalkoxylated alcohol surfactant is present in the particle, or in the composition.
This ratio of alkoxylated fatty acid amide to the anionic surfactant, when present, is preferably from 2: 1 to 1: 40, preferably from 1: 1 to 1 : 30, or even from 1: 5 to 1: 25.
Furthermore, the inventors have found that the specific nonionic polyalkoxy fatty acid amides and perfume can easily be combined with an effervescence source, which further improves the dispensing. Thus, preferably the detergent composition comprises an effervescence system.
Preferably, the detergent composition further comprises one or more brighteners or dyes or mixtures thereof.
Nonionic alkoxylated fatty acid amide The alkoxylated fatty acid amide herein comprises preferably a compound of the formula
wherein R, is a C, 2-C, 8 alkyl or alkenyl group, R2 is a C2-C4 alkylene group, R3 is a hydrogen or a C,-C4 alkyl group, R4 is a C,-C4 alkyl group or hydrogen and n is a number from 3 to 12.
Preferred alkoxylated fatty acid amides have a R, being a C, 2-C, 4 or a C, 6-C, 8 alkyl group, R2 being a propylene or more preferably ethylene, n being from 5 to 10 or even 9, more preferably 5 to 7, most preferably 5, R4 being methyl or more preferably hydrogen, R3 being preferably hydrogen, or optionally an ethyl group.
Perfume The present invention contains from 0.01 % to 10% by weight of a perfume. When used herein,'perfume'relates to the active ingredients which contribute to the fragrance. In addition, the perfume may comprise carrier materials and/or coatings or encapsulates. Suitable perfumes are disclosed in U. S. Pat. 5, 500,138, said patent being incorporated herein by reference.
As used herein, perfume includes fragrant substance or mixture of substances including natural (i. e., obtained by extraction of flowers, herbs, leaves, roots, barks, wood, blossoms or plants), artificial (i. e., a mixture of different nature oils or oil constituents) and synthetic (i. e., synthetically produced) odoriferous substances. Such materials are often accompanied by auxiliary materials, such as fixatives, extenders, stabilizers and solvents. These auxiliaries are also included within the meaning of "perfume", as used herein. Typically, perfumes are complex mixtures of a plurality of organic compounds.
Examples of perfume ingredients useful in the perfumes of the present invention compositions include, but are not limited to, hexyl cinnamic aldehyde; amyl cinnamic aldehyde; amyl salicylate ; hexyl salicylate ; terpineol; 3,7-dimethyl-cis-2,6 octadien-1-ol ; 2,6-dimethyl-2-octanol; 2,6-dimethyl-7-octen-2-ol; 3,7-dimethyl-3 octanol ; 3,7-dimethyl-trans-2,6-octadien-l-ol; 3,7-dimethyl-6-octen-1-ol; 3,7 dimethyl-1-octanol ; 2-methyl-3- (para-tert-butylphenyl)-propionaldehyde ; 4- (4- hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde ; tricyclodecenyl propionate; tricyclodecenyl acetate ; anisaldehyde; 2-methyl-2- (para-iso- propylphenyl)-propionaldehyde; ethyl-3-methyl-3-phenyl glycidate; 4- (para- hydroxyphenyl)-butan-2-one; 1- (2, 6,6-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one ; para-methoxyacetophenone; para-methoxy-alpha-phenylpropene; methyl-2-n-hexyl3-oxo-cyclopentane carboxylate ; undecalactone gamma.
Additional examples of fragrance materials include, but are not limited to, orange oil; lemon oil; grapefruit oil; bergamot oil; clove oil; dodecalactone gamma; methyl-2- (2 pentyl-3-oxo-cyclopentyl) acetate; beta-naphthol methylether; methyl-betanaphthylketone; coumarin ; decylaldehyde; benzaldehyde; 4-tert-butylcyclohexyl acetate; alpha, alpha-dimethylphenethyl acetate; methylphenylcarbinyl acetate; Schiff s base of 4- (4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde and methyl anthranilate; cyclic ethyleneglycol diester of tridecandioic acid; 3,7-dimethyl2,6-octadiene-1-nitrile; ionone gamma methyl; ionone alpha; ionone beta; petitgrain; methyl cedrylone; 7-acetyl-1, 2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethylnaphthalene; ionone methyl; methyl-1,6,10-trimethyl-2,5,9-cyclododecatrien-1-yl ketone; 7-acetyl-1, 1, 3,4,4,6-hexamethyl tetralin; 4-acetyl-6-tert-butyl-1, 1-dimethyl indane; benzophenone; 6-acetyl-1, 1,2,3, 3,5-hexamethyl indane; 5-acetyl-3-isopropyl- 1,1,2,6-tetramethyl indane; 1-dodecanal ; 7-hydroxy-3,7-dimethyl octanal; 10 undecen-1-al ; iso-hexenyl cyclohexyl carboxaldehyde; formyl tricyclodecan ; cyclopentadecanolide; 16-hydroxy-9-hexadecenoic acid lactone; 1,3,4,6,7,8hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyrane; ambroxane; dodecahydro-3a, 6,6,9a-tetramethylnaphtho-[2, 1b] furan; cedrol; 5- (2, 2,3trimethylcyclopent-3-enyl)-3-methylpentan-2-ol ; 2-ethyl-4- (2, 2,3-trimethyl-3 cyclopenten-1-yl)-2-buten-1-ol ; caryophyllene alcohol; cedryl acetate; para-tertbutylcyclohexyl acetate; patchouli; olibanum resinoid; labdanum; vetivert; copaiba balsam; fir balsam; and condensation products of : hydroxycitronellal and methyl anthranilate ; hydroxycitronellal and indol; phenyl acetaldehyde and indol; 4- (4- hydroxy-4-methyl pentyl)-3-cyclohexene-1-carboxaldehyde and methyl anthranilate.
More examples of perfume components are geraniol ; geranyl acetate; linalool; linalyl acetate; tetrahydrolinalool ; citronellol ; citronellyl acetate; dihydromyrcenol; dihydromyrcenyl acetate; tetrahydromyrcenol; terpinyl acetate; nopol; nopyl acetate; 2-phenylethanol; 2-phenylethyl acetate; benzyl alcohol; benzyl acetate; benzyl salicylate; benzyl benzoate ; styrallyl acetate; dimethylbenzylcarbinol; trichloromethylphenylcarbinyl methylphenylcarbinyl acetate; isononyl acetate; vetiveryl acetate; vetiverol; 2-methyl-3- (p-tert-butylphenyl)-propanal ; 2-methyl-3- (p- isopropylphenyl)-propanal ; 3- (p-tert-butylphenyl)-propanal ; 4- (4-methyl-3- pentenyl)-3-cyclohexenecarbaldehyde ; 4-acetoxy-3-pentyltetrahydropyran ; methyl dihydrojasmonate; 2-n-heptylcyclopentanone; 3-methyl-2-pentyl-cyclopentanone ; ndecanal; n-dodecanal; 9-decenol-l ; phenoxyethyl isobutyrate; phenylacetaldehyde dimethylacetal; phenylacetaldehyde diethylacetal; geranonitrile; citronellonitrile ; cedryl acetal; 3-isocamphylcyclohexanol ; cedryl methylether; isolongifolanone ; aubepine nitrile; aubepine; heliotropine ; eugenol; vanillin; diphenyl oxide; hydroxycitronellal ionones; methyl ionones; isomethyl ionomes; irones; cis-3hexenol and esters thereof ; indane musk fragrances; tetralin musk fragrances; isochroman musk fragrances; macrocyclic ketones; macrolactone musk fragrances; ethylene brassylate.
It may be preferred that the perfumes are substantially free of halogenated materials and/or nitromusks.
Suitable solvents, diluents or carriers for perfumes ingredients mentioned above are for examples, ethanol, isopropanol, diethylene glycol, monoethyl ether, dipropylene glycol, diethyl phthalate, triethyl citrate, etc. The amount of such solvents, diluents or carriers incorporated in the perfumes is preferably kept to the minimum needed to provide a homogeneous perfume solution.
Perfume also includes pro-perfumes or pro-fragrances as described in U. S. 5,652,205 Hartman et al., issued July 29,1997, W095/04809, W096/02625, PCT US97/14610 filed 19 August 1997 and claiming priority of 19 August 1996, and EP-A-0,752,465, incorporated herein by reference.
The perfume can be present at a level of from 0.01% to 10%, preferably from 0.05% to 5%, and more preferably from 0.1% to 3%, by weight of the finished composition.
It may be preferred that the perfume is sprayed onto other detergent ingredients or preferably onto a detergent particle as described herein. It may also be useful that the perfume or part thereof is encapsulated, for example by polymeric materials such as starch. The weight of such an encapsulate is for the purpose of this invention not to be included in the weight % of perfume described herein Anionic surfactant/additional nonionic surfactant The composition of the invention comprises preferably an anionic surfactant.
The anionic surfactant may be in an intimate mixture with the nonionic polyalkoxy fatty acid amide. It may also be preferred that a detergent particle comprising an anionic surfactant, comprises the nonionic polyalkoxy fatty acid amide as a sprayedon component, whereby it may be preferred that the nonionic polyalkoxy fatty acid amide is in an intimate mixture with the perfume.
Highly preferred anionic surfactants are sulphate and sulphonate surfactants described herein.
Anionic surfactant Essentially any anionic surfactants useful for detersive purposes can be comprised herein. These can include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di-and triethanolamine salts) of the anionic sulfate, sulfonate, carboxylate and sarcosinate surfactants.
Anionic sulfate and sulfonate surfactants are preferred.
Preferably, the anionic surfactant of the particle comprises at least an anionic sulfate or a sulphonate surfactant, as described herein. It may be preferred that the anionic surfactant in the particle comprises both sulfonate and sulfate surfactants. It may however also be preferred that the aionic surfactant of the particle consist essentially of anionic sulfate surfactant or anionic sulphonate surfactant.
However, other possible anionic surfactants include the isethionates such as the acyl isethionates, N-acyl taurates, fatty acid amides of methyl tauride, alkyl succinates and sulfosuccinates, monoesters of sulfosuccinate (especially saturated and unsaturated C 12-C 18 monoesters) diesters of sulfosuccinate (especially saturated and unsaturated C6-C 14 diesters), N-acyl sarcosinates. Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from tallow oil.
Anionic Sulfate Surfactant Anionic sulfate surfactants suitable for use herein include the linear and branched primary and secondary alkyl sulfates, alkyl ethoxysulfates, fatty oleoyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, the C5-C 17 acyl-N- (C I-C4 alkyl) and-N- (C I-C2 hydroxyalkyl) glucamine sulfates, and sulfates of alkylpolysaccharides such as the sulfates of alkylpolyglucoside (the nonionic nonsulfated compounds being described herein) and also disulfates of the above.
Alkyl sulfate surfactants are preferably selected from the linear and branched primary C 10-C l 8 alkyl sulfates, more preferably the C 11-C 15 branched chain alkyl sulfates and the C 12-C 14 linear chain alkyl sulfates.
Alkyl ethoxysulfate surfactants are preferably selected from the group consisting of the Clo-Cig alkyi sulfates which have been ethoxylated with from 0.5 to 20 moles of ethylene oxide per molecule. More preferably, the alkyl ethoxysulfate surfactant is a C l l-C 18, most preferably C l l-C 15 alkyl sulfate which has been ethoxylated with from 0.5 to 7, preferably from 1 to 5, moles of ethylene oxide per molecule.
A particularly preferred aspect of the invention employs mixtures of the preferred alkyl sulfate and/or sulfonate and alkyl ethoxysulfate surfactants. Such mixtures have been disclosed in PCT Patent Application No. WO 93/18124.
Anionic Sulfonate Surfactant Anionic sulfonate surfactants suitable for use herein include the salts of Cs-C20 linear alkylbenzene sulfonates, alkyl ester sulfonates, in particular a-methyl ester sulphonates, C6-C22 primary or secondary alkane sulfonates, C6-C24 olefin sulfonates, sulfonated polycarboxylic acids, alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfonates, and any mixtures thereof.
Anionic Carboxvlate Surfactant Suitable anionic carboxylate surfactants include the alkyl ethoxy carboxylates, the alkyl polyethoxy polycarboxylate surfactants and the soaps ('alkyl carboxyls'), especially certain secondary soaps as described herein.
Suitable alkyl ethoxy carboxylates include those with the formula RO (CH2CH20) X CH2C00-M wherein R is a C6 to C 18 alkyl group, x ranges from O to 10, and the ethoxylate distribution is such that, on a weight basis, the amount of material where x is 0 is less than 20 % and M is a cation. Suitable alkyl polyethoxy polycarboxylate surfactants include those having the formula RO- (CHR I-CHR2-0)-R3 wherein R is a C6 to C 1g alkyl group, x is from I to 25, Rl and R2 are selected from the group consisting of hydrogen, methyl acid radical, succinic acid radical, hydroxysuccinic acid radical, and mixtures thereof, and R3 is selected from the group consisting of hydrogen, substituted or unsubstituted hydrocarbon having between 1 and 8 carbon atoms, and mixtures thereof.
Suitable soap surfactants include the secondary soap surfactants which contain a carboxyl unit connected to a secondary carbon. Preferred secondary soap surfactants for use herein are water-soluble members selected from the group consisting of the water-soluble salts of 2-methyl-l-undecanoic acid, 2-ethyl-l-decanoic acid, 2-propyl I-nonanoic acid, 2-butyl-1-octanoic acid and 2-pentyl-1-heptanoic acid.
Certain soaps may also be included as suds suppressors.
Alkali Metal Sarcosinate Surfactant Other suitable anionic surfactants are the alkali metal sarcosinates of formula R-CON (R1) CH2 COOM, wherein R is a Cs-Cl7 linear or branched alkyl or alkenyl group, RUs a Cl-C4 alkyl group and M is an alkali metal ion. Preferred examples are the myristyl and oleoyl methyl sarcosinates in the form of their sodium salts.
Nonionic Alkvlpolvsaccharide Surfactant The nonionic surfactant of the particle may also comprise nonionic alkylpolysaccharide surfactants, such as those disclosed in U. S. Patent 4,565,647, Llenado, issued January 21,1986, having a hydrophobic group containing from 6 to 30 carbon atoms and a polysaccharide, e. g., a polyglycoside, hydrophilic group containing from 1.3 to 10 saccharide units.
Preferred alkylpolyglycosides have the formula: R20 (CnH2nO) t (glycol) x wherein R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from 1.3 to 8. The glycosyl is preferably derived from glucose.
Nonionic Alkoxylated Alcohol Surfactant The particle herein and the compositions of the invention may comprise alkoxylated alcohol surfactants, preferably only up to 10%, or even 5% or evn 2% by weight of the composition or particle.
It has been found that the level of nonionic alkoxylated alcohol surfactants commonly employed in detergent compositions can be reduced, even to 0%, in the compositions of the invention, containing the polyalkoxylated fatty acid amide surfactants.
When used herein, the nonionic polyalkoxylated or alkoxylated alcohol surfactants are selected from the condensation products of aliphatic alcohols with from 1 to 25 moles of alkylene oxide, particularly ethylene oxide and/or propylene oxide, are suitable for use herein. The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 6 to 22 carbon atoms. Typical are the condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10 moles of ethylene oxide per mole of alcohol.
Additional ingredients The compositions of the invention preferably comprise additional ingredients. The precise nature of these additional components, and levels of incorporation thereof will depend on the physical form of the composition and the precise nature of the washing operation for which it is to be used.
When additional components are to be incorporated in the particle, it may be preferred that the nonionic alkoxylated fatty acid amide and the anionic surfactant, when present, are premixed prior to admixing any additional ingredients.
The compositions of the invention preferably contain one or more additional detergent components selected from effervescence sources, additional surfactants, bleaches, bleach catalysts, alkalinity systems, builders, phosphate-containing builders, organic polymeric compounds, enzymes, suds suppressors, lime soap, dispersants, soil suspension and anti-redeposition agents soil releasing agents, dyes, dyed speckles, brighteners, photobleaching agents and additional corrosion inhibitors.
Preferably, the composition comprises one or more brighteners, enzymes, dye or mixtures thereof. They may be comprised in the particle herein and/or they may be incorporated in the composition comprised in a different particle.
Hereby, it may be preferred that the brightener and/or dye are sprayed onto the particle. In one embodiment of the invention, the polyalkoxylated fatty acid amide may be mixed with the brightener, perfume and/or dye and then sprayed onto the particle core to obtain the particle described herein above.
Effervescence system The compositions and/or the particle herein preferably comprises an effervescence source.
It may be preferred that the effervescence source comprises an alkali source and an acid source, capable of reacting with one another in the presence of water to produce a gas, preferably carbon dioxide. Therefore, the alkali source is preferably a carbonate source. Examples of preferred carbonates are the alkaline earth and alkali metal carbonates, including sodium carbonate, bicarbonate and sesqui-carbonate and any mixtures thereof with ultra-fine calcium carbonate such as are disclosed in German Patent Application No. 2,321,001 published on November 15,1973. Alkali metal percarbonate salts are also suitable sources of carbonate species and are described in more detail in the section'inorganic perhydrate salts'herein.
The acid source may be any suitable organic, mineral or inorganic acid, or a derivative thereof, or a mixture thereof. The acid source may be a mono-, bi-or triprotonic acid. Preferred derivatives include a salt or ester of the acid. The source of acidity is preferably non-hygroscopic, which can improve storage stability. However, a monohydrate acidic source can be useful herein. Organic acids and their derivatives are preferred. The acid is preferably water-soluble. Suitable acids include citric, glutaric, tartaric acid, succinic or adipic acid, monosodium phosphate, sodium hydrogen sulfate, boric acid, or a salt or an ester thereof. Citric acid, maleic acid, malic acid or fumaric acid are especially preferred.
The acid source is preferably present at a level from 1% to 12%, even more preferably from 1% to 7%, most preferably from 2% to 5% by weight of the composition.
The effervescence source may comprise anhydrous perborate, preferably stabilised with a coating agent or a diluent.
The effervescence source may preferably be intimately mixed with intimate mixture herein, in particular when comprised in a separate particle, prior to addition of the intimate mixture or particle thereof to the composition. Preferred hereby may be that the effervescence source is an intimate mixture of maleic acid or citric acid or fumaric acid, but preferably of malic acid with a carbonate source and preferably also a bicarbonate source.
Preferably, the effervescence source is then comprised in the particle containing the intimate mixture at a level of from 3% to 40% by weight of the particle, more preferably at a level of from 4% to 30% or even from 5% to 25% by weight of the particle.
Dves The dye which may be used herein can be a dye stuff or an aqueous solution of a dye stuff. It may be preferred that the dye is an aqueous solution comprising a dyestuff, at any level to obtain suitable dyeing of the particles, preferably such that levels of dye solution are obtained up to 2% by weight of the speckle particle, or more preferably up to 0.5% by weight, as described above. Optionally, the dye also comprising other ingredients such as organic binder materials.
The dyestuff can be any suitable dyestuff. Specific examples of suitable dyestuffs include E104-food yellow 13 (quinoline yellow), El l0-food yellow 3 (sunset yellow FCF), E 131-food blue 5 (patent blue V), Ultra Marine blue (trade name), E133-food blue 2 (brilliant blue FCF), E140-natural green 3 (chlorophyll and chlorphyllins), E141 and Pigment green 7 (chlorinated Cu phthalocyanine).
Preferred dyestuffs may be Monastral Blue BV paste (trade name) and/or Pigmasol Green (trade name).
Additional surfactant The compositions in accord with the invention or the particles thereof may contain one or more surfactants selected from the cationic, ampholytic, amphoteric and zwitterionic surfactants and mixtures thereof.
A typical listing of ampholytic, and zwitterionic classes, and species of these surfactants, is given in U. S. P. 3,929,678 issued to Laughlin and Heuring on December 30,1975. Further examples are given in"Surface Active Agents and Detergents" (Vol. I and II by Schwartz, Perry and Berch). A list of suitable cationic surfactants is given in U. S. P. 4,259,217 issued to Murphy on March 31,1981.
Amphoteric Surfactant Suitable amphoteric surfactants for use herein include the amine oxide surfactants and the alkyl amphocarboxylic acids.
Suitable amine oxides include those compounds having the formula R3 (OR4) XN0 (R5) 2 wherein R3 is selected from an alkyl, hydroxyalkyl, acylamidopropoyl and alkyl phenyl group, or mixtures thereof, containing from 8 to 26 carbon atoms; R4 is an alkylene or hydroxyalkylene group containing from 2 to 3 carbon atoms, or mixtures thereof; x is from 0 to 5, preferably from 0 to 3; and each R5 is an alkyl or hydroxyalkyl group containing from 1 to 3, or a polyethylene oxide group containing from 1 to 3 ethylene oxide groups. Preferred are C 1 p-C 1g alkyl dimethylamine oxide, and C 10-18 acylamido alkyl dimethylamine oxide.
A suitable example of an alkyl aphodicarboxylic acid is Miranol (TM) C2M Conc. manufactured by Miranol, Inc., Dayton, NJ.
Zwitterionic Surfactant Zwitterionic surfactants can also be incorporated into the detergent compositions in accord with the invention. These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. Betaine and sultaine surfactants are exemplary zwitterionic surfactants for use herein.
Suitable betaines are those compounds having the formula R (R') 2N+R2COO' wherein R is a C6-Clg hydrocarbyl group, each R1 is typically C1-C3 alkyl, and R2 is a C 1-C 5 hydrocarbyl group. Preferred betaines are C 12-18 dimethyl-ammonio hexanoate and the C10-18 acylamidopropane (or ethane) dimethyl (or diethyl) betaines. Complex betaine surfactants are also suitable for use herein.
Cationic Surfactants Suitable cationic surfactants to be used in the detergent herein include the quaternary ammonium surfactants. Preferably the quaternary ammonium surfactant is a mono C6-C 16, preferably C6-C 10 N-alkyl or alkenyl ammonium surfactants wherein the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups. Preferred are also the mono-alkoxylated and bis-alkoxylated amine surfactants.
Another suitable group of cationic surfactants which can be used in the detergent compositions or components thereof herein are cationic ester surfactants.
The cationic ester surfactant is a, preferably water dispersible, compound having surfactant properties comprising at least one ester (i. e.-COO-) linkage and at least one cationically charged group.
Suitable cationic ester surfactants, including choline ester surfactants, have for example been disclosed in US Patents No. s 4228042,4239660 and 4260529.
Cationic mono-alkoxylated amine surfactants Highly preferred herein are cationic mono-alkoxylated amine surfactant preferably of the general formula I:
wherein Rl is an alkyl or alkenyl moiety containing from about 6 to about 18 carbon atoms, preferably 6 to about 16 carbon atoms, most preferably from about 6 to about 14 carbon atoms; R2 and R3 are each independently alkyl groups containing from one to about three carbon atoms, preferably methyl, most preferably both R2 and R3 are methyl groups; R4 is selected from hydrogen (preferred), methyl and ethyl; X-is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, to provide electrical neutrality; A is a alkoxy group, especially a ethoxy, propoxy or butoxy group ; and p is from 0 to about 30, preferably 2 to about 15, most preferably 2 to about 8.
Preferably the ApR4 group in formula I has p=1 and is a hydroxyalkyl group, having no greater than 6 carbon atoms whereby the-OH group is separated from the quaternary ammonium nitrogen atom by no more than 3 carbon atoms. Particularly preferred ApR4 groups are-CH2CH20H,-CH2CH2CH20H,- CH2CH (CH3) OH and--CH (CH3) CH20H, with-CH2CH20H being particularly preferred. Preferred RI groups are linear alkyl groups. Linear RI groups having from 8 to 14 carbon atoms are preferred.
Another highly preferred cationic mono-alkoxylated amine surfactants for use herein are of the formula
wherein Rl is C10-Cl8 hydrocarbyl and mixtures thereof, especially C I O-C 14 alkyl, preferably C1 g and C 12 alkyl, and X is any convenient anion to provide charge balance, preferably chloride or bromide.
As noted, compounds of the foregoing type include those wherein the ethoxy (CH2CH2O) units (EO) are replaced by butoxy, isopropoxy [CH (CH3) CH20] and [CH2CH (CH30] units (i-Pr) or n-propoxy units (Pr), or mixtures of EO and/or Pr and/or i-Pr units.
The levels of the cationic mono-alkoxylated amine surfactants used in detergent compositions of the invention is preferably from 0.1 % to 20%, more preferably from 0.2% to 7%, most preferably from 0.3% to 3.0% by weight of the composition.
Cationic bis-alkoxvlated amine surfactant The cationic bis-alkoxylated amine surfactant preferably has the general formula II :
wherein RI is an alkyl or alkenyl moiety containing from about 8 to about 18 carbon atoms, preferably 10 to about 16 carbon atoms, most preferably from about 10 to about 14 carbon atoms; R2 is an alkyl group containing from one to three carbon atoms, preferably methyl; R3 and R4 can vary independently and are selected from hydrogen (preferred), methyl and ethyl, X'is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, sufficient to provide electrical neutrality. A and A' can vary independently and are each selected from C 1-C4 alkoxy, especially ethoxy, (i. e., -CH2CH2O-), propoxy, butoxy and mixtures thereof ; p is from 1 to about 30, preferably 1 to about 4 and q is from 1 to about 30, preferably 1 to about 4, and most preferably both p and q are 1.
Highly preferred cationic bis-alkoxylated amine surfactants for use herein are of the formula
wherein R1 is Clo-Cl8 hydrocarbyl and mixtures thereof, preferably Clo, C12, C14 alkyl and mixtures thereof. X is any convenient anion to provide charge balance, preferably chloride. With reference to the general cationic bis-alkoxylated amine structure noted above, since in a preferred compound R I is derived from (coconut) C12-C14 alkyl fraction fatty acids, R2 is methyl and ApR3 and A'qR4 are each monoethoxy.
Other cationic bis-alkoxylated amine surfactants useful herein include compounds of the formula:
wherein Rl is C10-Cl8 hydrocarbyl, preferably C10-Cl4 alkyl, independently p is 1 to about 3 and q is 1 to about 3, R2 is C1-C3 alkyl, preferably methyl, and X is an anion, especially chloride or bromide.
Other compounds of the foregoing type include those wherein the ethoxy (CH2CH2O) units (EO) are replaced by butoxy (Bu) isopropoxy [CH (CH3) CH20] and [CH2CH (CH3O] units (i-Pr) or n-propoxy units (Pr), or mixtures of EO and/or Pr and/or i-Pr units.
Perhvdrate Bleaches An preferred additional components of the compositions is a perhydrate bleach, such as metal perborates, metal percarbonates, particularly the sodium salts. Perborate can be mono or tetra hydrated. Sodium percarbonate has the formula corresponding to 2Na2CO3. 3H202, and is available commercially as a crystalline solid.
Potassium peroxymonopersulfate, sodium per is another optional inorganic perhydrate salt of use in the detergent compositions herein.
Organic Peroxyacid Bleaching System A preferred feature of the composition is an organic peroxyacid bleaching system. In one preferred execution the bleaching system contains a hydrogen peroxide source and an organic peroxyacid bleach precursor compound. The production of the organic peroxyacid occurs by an in situ reaction of the precursor with a source of hydrogen peroxide. Preferred sources of hydrogen peroxide include inorganic perhydrate bleaches.
It may be preferred that part of the precursor compound or all of the precursor compound is comprised in the particle described herein, comprising the polyalkoxylated fatty acid amide surfactant.
In an alternative preferred execution a preformed organic peroxyacid is incorporated directly into the composition. Compositions containing mixtures of a hydrogen peroxide source and organic peroxyacid precursor in combination with a preformed organic peroxyacid are also envisaged.
Peroxvacid Bleach Precursor Peroxyacid bleach precursors are compounds which react with hydrogen peroxide in a perhydrolysis reaction to produce a peroxyacid. Generally peroxyacid bleach precursors may be represented as
where L is a leaving group and X is essentially any functionality, such that on perhydroloysis the structure of the peroxyacid produced is
Peroxyacid bleach precursor compounds are preferably incorporated at a level of from 0.5% to 20% by weight, more preferably from 1% to 15% by weight, most preferably from 1.5% to 10% by weight of the detergent compositions.
Suitable peroxyacid bleach precursor compounds typically contain one or more N-or O-acyl groups, which precursors can be selected from a wide range of classes.
Suitable classes include anhydrides, esters, imides, lactams and acylated derivatives of imidazoles and oximes. Examples of useful materials within these classes are disclosed in GB-A-1586789. Suitable esters are disclosed in GB-A-836988,864798, 1147871,2143231 and EP-A-0170386.
Leaving Groups The leaving group, hereinafter L group, must be sufficiently reactive for the perhydrolysis reaction to occur within the optimum time frame (e. g., a wash cycle). However, if L is too reactive, this activator will be difficult to stabilize for use in a bleaching composition.
Preferred L groups are selected from the group consisting of :
and mixtures thereof, wherein R1 is an alkyl, aryl, or alkaryl group containing from 1 to 14 carbon atoms, R3 is an alkyl chain containing from 1 to 8 carbon atoms, R4 is H or R3, and Y is H or a solubilizing group. Any of R1, R3 and R4 may be substituted by essentially any functional group including, for example alkyl, hydroxy, alkoxy, halogen, amine, nitrosyl, amide and ammonium or alkyl ammmonium groups.
The preferred solubilizing groups are-SO3 M+,-CO2 M+,-SO4-M+,-N+ (R3) 4X- and 0 < --N (R3) 3 and most preferably-SO3 M and-CO2 M wherein R3 is an alkyl chain containing from 1 to 4 carbon atoms, M is a cation which provides solubility to the bleach activator and X is an anion which provides solubility to the bleach activator. Preferably, M is an alkali metal, ammonium or substituted ammonium cation, with sodium and potassium being most preferred, and X is a halide, hydroxide, methylsulfate or acetate anion.
Alk Percarboxylic Acid Bleach Precursors Alkyl percarboxylic acid bleach precursors form percarboxylic acids on perhydrolysis. Preferred precursors of this type provide peracetic acid on perhydrolysis.
Preferred alkyl percarboxylic precursor compounds of the imide type include the N , N, N IN 1 tetra acetylated alkylene diamines wherein the alkylene group contains from 1 to 6 carbon atoms, particularly those compounds in which the alkylene group contains 1,2 and 6 carbon atoms. Tetraacetyl ethylene diamine (TAED) is particularly preferred. The TAED is preferably not present in the agglomerated particle of the present invention, but preferably present in the detergent composition, comprising the particle.
Other preferred alkyl percarboxylic acid precursors include sodium 3,5,5-tri-methyl hexanoyloxybenzene sulfonate (iso-NOBS), sodium nonanoyloxybenzene sulfonate (NOBS), sodium acetoxybenzene sulfonate (ABS) and pentaacetyl glucose.
Amide Substituted Alkvl Peroxvacid Precursors Particular useful herein, in particular in the particle herein, comprising the polyalokoxylated fatty acid amide surfactant, are amide substituted alkyl peroxyacid precursor compounds. It is believed that the polyalkoxylated fatty acid amide surfactant interacts with the amide precursor in such a manner that the precursor is dissolved or dispensed more sufficiently.
Suitable amide substituted alkyl peroxyacid precursors herein, including those of the following general formulae:
wherein RI is an alkyl group with from 1 to 14 carbon atoms, R2 is an alkylene group containing from 1 to 14 carbon atoms, and R5 is H or an alkyl group containing 1 to 10 carbon atoms and L can be essentially any leaving group.
Highly preferred examples of this class of agents include the precursors or the acids such as (6-hexylamino)-6-oxo-caproic acid (6-octylamino)-6-oxo-caproic acid, (6 nonylamino)-6-oxo-caproic acid, (6-decylamino)-6-oxo-caproic acid, magnesium monoperoxyphthalate hexahydrate, the salt of metachloro perbenzoic acid, 4nonylamino-4-oxoperoxybutyric acid and diperoxydodecanedioic acid, or precursors thereof, in particularly having a benzene sulphonate leaving group. Such bleaching agents are disclosed in U. S. 4,483,781, U. S. 4,634,551, EP 0,133,354, U. S.
4,412,934 and EP 0,170,386 Perbenzoic Acid Precursor Perbenzoic acid precursor compounds provide perbenzoic acid on perhydrolysis.
Suitable O-acylated perbenzoic acid precursor compounds include the substituted and unsubstituted benzoyl oxybenzene sulfonates, and the benzoylation products of sorbitol, glucose, and all saccharides with benzoylating agents, and those of the imide type including N-benzoyl succinimide, tetrabenzoyl ethylene diamine and the N-benzoyl substituted ureas. Suitable imidazole type perbenzoic acid precursors include N-benzoyl imidazole and N-benzoyl benzimidazole. Other useful N-acyl group-containing perbenzoic acid precursors include N-benzoyl pyrrolidone, dibenzoyl taurine and benzoyl pyroglutamic acid.
Cationic Peroxyacid Precursors Cationic peroxyacid precursor compounds produce cationic peroxyacids on perhydrolysis.
Typically, cationic peroxyacid precursors are formed by substituting the peroxyacid part of a suitable peroxyacid precursor compound with a positively charged functional group, such as an ammonium or alkyl ammmonium group, preferably an ethyl or methyl ammonium group. Cationic peroxyacid precursors are typically present in the solid detergent compositions as a salt with a suitable anion, such as a halide ion.
The peroxyacid precursor compound to be so cationically substituted may be a perbenzoic acid, or substituted derivative thereof, precursor compound as described hereinbefore. Alternatively, the peroxyacid precursor compound may be an alkyl percarboxylic acid precursor compound or an amide substituted alkyl peroxyacid precursor as described hereinafter.
Cationic peroxyacid precursors are described in U. S. Patents 4,904,406; 4,751,015; 4,988,451; 4,397,757; 5,269,962; 5,127,852; 5,093,022; 5,106,528; U. K. 1,382,594; EP 475,512,458,396 and 284,292; and in JP 87-318,332.
Examples of preferred cationic peroxyacid precursors are described in UK Patent Application No. 9407944.9 and US Patent Application Nos. 08/298903, 08/298650, 08/298904 and 08/298906.
Suitable cationic peroxyacid precursors include any of the ammonium or alkyl ammonium substituted alkyl or benzoyl oxybenzene sulfonates, N-acylated caprolactams, and monobenzoyltetraacetyl glucose benzoyl peroxides. Preferred cationic peroxyacid precursors of the N-acylated caprolactam class include the trialkyl ammonium methylene benzoyl caprolactams and the trialkyl ammonium methylene alkyl caprolactams.
Benzoxazin Oreanic Peroxyacid Precursors Also suitable are precursor compounds of the benzoxazin-type, as disclosed for example in EP-A-332, 294 and EP-A-482,807, particularly those having the formula:
wherein R, is H, alkyl, alkaryl, aryl, or arylalkyl.
Preformed Organic Peroxvacid The detergent composition may contain, in addition to, or as an alternative to, an organic peroxyacid bleach precursor compound, a preformed organic peroxyacid, typically at a level of from 1 % to 15% by weight, more preferably from I % to 10% by weight of the composition.
A preferred class of organic peroxyacid compounds are the amide substituted compounds of the following general formulae:
wherein RI is an alkyl, aryl or alkaryl group with from 1 to 14 carbon atoms, R2 is an alkylene, arylene, and alkarylene group containing from 1 to 14 carbon atoms, and R5 is H or an alkyl, aryl, or alkaryl group containing 1 to 10 carbon atoms. Amide substituted organic peroxyacid compounds of this type are described in EP-A0170386.
Other organic peroxyacids include diacyl and tetraacylperoxides, especially diperoxydodecanedioc acid, diperoxytetradecanedioc acid and diperoxyhexadecanedioc acid. Mono-and diperazelaic acid, mono-and diperbrassylic acid and N-phthaloylaminoperoxicaproic acid are also suitable herein.
Bleach Catalyst The composition can contain a transition metal containing bleach catalyst.
One suitable type are disclosed in U. S. Pat. 4,430,243.
Other types of bleach catalysts include the manganese-based complexes disclosed in U. S. Pat. 5,246,621 and U. S. Pat. 5,244,594. Others are described in European patent application publication no. 549,272, U. S. Pat. 4,246,612 and U. S. Pat.
5,227,084, U. S. Pat. 5,194, 416, U. S. Pat. 5,114,606, U. S. Pat. 5,114,611, in European patent application, publication no. 408,131 (cobalt complex catalysts), European patent applications, publication nos. 384,503, and 306,089 (metalloporphyrin catalysts), U. S. 4,728,455 (manganese/multidentate ligand catalyst), U. S.
4,711,748 and European patent application, publication no. 224,952, (absorbed manganese on aluminosilicate catalyst), U. S. 4,601,845 (aluminosilicate support with manganese and zinc or magnesium salt), U. S. 4,626,373 (manganese/ligand catalyst), U. S. 4,119,557 (ferric complex catalyst), German Pat. specification 2,054,019 (cobalt chelant catalyst) Canadian 866,191 (transition metal-containing salts), U. S.
4,430,243 (chelants with manganese cations and non-catalytic metal cations), and U. S. 4,728,455 (manganese gluconate catalysts).
Water-Soluble Builder Compound The compositions in accord with the present invention preferably contain a watersoluble builder compound, typically present in detergent compositions at a level of from 1 % to 80% by weight, preferably from 10% to 60% by weight, most preferably from 15% to 40% by weight of the composition.
The detergent compositions of the invention preferably comprise phosphatecontaining builder material. Preferably present at a level of from 0.5% to 60%, more preferably from 5% to 50%, more preferably from 8% to 40.
The phosphate-containing builder material preferably comprises tetrasodium pyrophosphate or even more preferably anhydrous sodium tripolyphosphate.
Suitable water-soluble builder compounds include the water soluble monomeric polycarboxylates, or their acid forms, homo or copolymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxylic radicals separated from each other by not more that two carbon atoms, borates, and mixtures of any of the foregoing.
The carboxylate or polycarboxylate builder can be momomeric or oligomeric in type although monomeric polycarboxylates are generally preferred for reasons of cost and performance.
Suitable carboxylates containing one carboxy group include the water soluble salts of lactic acid, glycolic acid and ether derivatives thereof. Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates and the sulfinyl carboxylates.
Polycarboxylates or their acids containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citraconates as well as succinate derivatives such as the carboxymethyloxysuccinates described in British Patent No.
1,379,241, lactoxysuccinates described in British Patent No. 1,389,732, and aminosuccinates described in Netherlands Application 7205873, and the oxypolycarboxylate materials such as 2-oxa-1, 1, 3-propane tricarboxylates described in British Patent No. 1,387,447. The most preferred polycarboxylic acid containing three carboxy groups is citric acid, preferably present at a level of from 0.1% to 15%, more preferably from 0.5% to 8% by weight of the composition.
Polycarboxylates containing four carboxy groups include oxydisuccinates disclosed in British Patent No. 1,261,829,1,1,2,2-ethane tetracarboxylates, 1,1,3,3-propane tetracarboxylates and 1,1,2,3-propane tetracarboxylates. Polycarboxylates containing sulfo substituents include the sulfosuccinate derivatives disclosed in British Patent Nos. 1, 398, 421 and 1,398,422 and in U. S. Patent No. 3,936,448, and the sulfonated pyrolysed citrates described in British Patent No. 1,439,000. Preferred polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly citrates.
The parent acids of the monomeric or oligomeric polycarboxylate chelating agents or mixtures thereof with their salts, e. g. citric acid or citrate/citric acid mixtures are also contemplated as useful builder components.
Borate builders, as well as builders containing borate-forming materials that can produce borate under detergent storage or wash conditions are useful water-soluble builders herein.
Suitable examples of water-soluble phosphate builders are the alkali metal tripolyphosphates, sodium, potassium and ammonium pyrophosphate, sodium and potassium and ammonium pyrophosphate, sodium and potassium orthophosphate, sodium polymeta/phosphate in which the degree of polymerization ranges from about 6 to 21, and salts of phytic acid.
Partially Soluble or Insoluble Builder Compound The compositions in accord with the present invention may contain a partially soluble or insoluble builder compound, typically present in detergent compositions at a level of from 0.5% to 60% by weight, preferably from 5% to 50% by weight, most preferably from 8% to 40% weight of the composition.
Examples of largely water insoluble builders include the sodium aluminosilicates.
Suitable aluminosilicate zeolites have the unit cell formula Naz [(AlO2) z (SiO2) y]. xH20 wherein z and y are at least 6 ; the molar ratio of z to y is from 1.0 to 0.5 and x is at least 5, preferably from 7.5 to 276, more preferably from 10 to 264. The aluminosilicate material are in hydrated form and are preferably crystalline, containing from 10% to 28%, more preferably from 18% to 22% water in bound form.
The aluminosilicate zeolites can be naturally occurring materials, but are preferably synthetically derived. Synthetic crystalline aluminosilicate ion exchange materials are available under the designations Zeolite A, Zeolite B, Zeolite P, Zeolite X, Zeolite HS and mixtures thereof. Zeolite A has the formula: Na 12 [AI02) 12 (Si02) 121. xH20 wherein x is from 20 to 30, especially 27. Zeolite X has the formula Na86 [ (A102) 86 (Si02) i06]-276H20.
Another preferred builder can be an crystalline layered silicate material, preferably of the formula Na2Si205, preferably as sold by Clariant under the trade name SKS-6, having a a, , 8, or mixtures thereof,-configuration.
Preferably the crystalline layered silicate material is present at a level of from 0.1% to 10%, more preferably from 0.25% to 7.5% and most preferably from 0.5% to 5% by weight of the compositions.
Heavy metal ion sequestrant The compositions preferably contain as an optional component a heavy metal ion sequestrant, which act to sequester (chelate) heavy metal ions. These components may also have calcium and magnesium chelation capacity, but preferentially they show selectivity to binding heavy metal ions such as iron, manganese and copper.
Heavy metal ion sequestrants are generally present at a level of from 0.005% to 20%, preferably from 0.1% to 10%, more preferably from 0.25% to 7.5% and most preferably from 0.5% to 5% by weight of the compositions.
Suitable heavy metal ion sequestrants for use herein include organic phosphonates, such as the amino alkylene poly (alkylene phosphonates), alkali metal ethane 1- hydroxy disphosphonates and nitrilo trimethylene phosphonates.
Preferred among the above species are diethylene triamine penta (methylene phosphonate), ethylene diamine tri (methylene phosphonate) hexamethylene diamine tetra (methylene phosphonate) and hydroxy-ethylene 1,1 diphosphonate.
Other suitable heavy metal ion sequestrant for use herein include nitrilotriacetic acid and polyaminocarboxylic acids such as ethylenediaminotetracetic acid, ethylenetriamine pentacetic acid, ethylenediamine disuccinic acid, ethylenediamine diglutaric acid, 2-hydroxypropylenediamine disuccinic acid or any salts thereof.
Especially preferred is ethylenediamine-N, N'-disuccinic acid (EDDS) or the alkali metal, alkaline earth metal, ammonium, or substituted ammonium salts thereof, or mixtures thereof.
Other suitable heavy metal ion sequestrants for use herein are described in EP-A317,542, EP-A-399,133, EP-A-516,102 EP-A-509,382, EP-A-476,257, EP-A 510, 331 and EP-A-528, 859.
Enzymes The compositions may comprise one or more enzymes.
Preferred additional enzymatic materials include the commercially available enzymes. Said enzymes include enzymes selected from lipases, cellulases, hemicellulases, peroxidases, proteases, gluco-amylases, amylases, xylanases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase or mixtures thereof.
A preferred combination of additional enzymes in a composition according to the present invention comprises a mixture of conventional applicable enzymes such as lipase, protease, amylase, cutinase and/or cellulase in conjunction with one or more plant cell wall degrading enzymes. Suitable enzymes are exemplified in US Patents 3,519,570 and 3, 533,139.
Suitable proteases are the subtilisins which are obtained from particular strains of B. subtilis and B. licheniformis (subtilisin BPN and BPN'). One suitable protease is obtained from a strain of Bacillus, having maximum activity throughout the pH range of 8-12, developed and sold as ESPERASE by Novo Industries A/S of Denmark, hereinafter"Novo". The preparation of this enzyme and analogous enzymes is described in GB 1,243,784 to Novo. Other suitable proteases include ALCALASE, DURAZYM and SAVINASE from Novo and MAXATASE MAXACALO, PROPERASE and MAXAPEM&commat; (protein engineered Maxacal) from Gist Brocades. Proteolytic enzymes also encompass modified bacterial serine proteases, such as those described in European Patent Application Serial Number 87 303761.8, filed April 28,1987 (particularly pages 17,24 and 98), and which is called herein "Protease B", and in European Patent Application 199,404, Venegas, published October 29,1986, which refers to a modified bacterial serine protealytic enzyme which is called"Protease A"herein. Suitable is what is called herein"Protease C", which is a variant of an alkaline serine protease from Bacillus in which lysine replaced arginine at position 27, tyrosine replaced valine at position 104, serine replaced asparagine at position 123, and alanine replaced threonine at position 274.
Protease C is described in EP 90915958: 4, corresponding to WO 91/06637, Published May 16,1991. Genetically modified variants, particularly of Protease C, are also included herein.
A preferred protease referred to as"Protease D"is a carbonyl hydrolase variant having an amino acid sequence not found in nature, which is derived from a precursor carbonyl hydrolase by substituting a different amino acid for a plurality of amino acid residues at a position in said carbonyl hydrolase equivalent to position +76, preferably also in combination with one or more amino acid residue positions equivalent to those selected from the group consisting of +99, +101, +103, +104, +107, +123, +27, +105, +109, +126, +128, +135, +156, +166, +195, +197, +204, +206, +210, +216, +217, +218, +222, +260, +265, and/or +274 according to the numbering of Bacillus amyloliquefaciens subtilisin, as described in W095/10591 and in the patent application of C. Ghosh, et al,"Bleaching Compositions Comprising Protease Enzymes"having US Serial No. 08/322,677, filed October 13,1994.
Also suitable for the present invention are proteases described in patent applications EP 251 446 and WO 91/06637, protease BLAPS described in W091/02792 and their variants described in WO 95/23221.
See also a high pH protease from Bacillus sp. NCIMB 40338 described in WO 93/18140 A to Novo. Enzymatic detergents comprising protease, one or more other enzymes, and a reversible protease inhibitor are described in WO 92/03529 A to Novo. When desired, a protease having decreased adsorption and increased hydrolysis is available as described in WO 95/07791 to Procter & Gamble. A recombinant trypsin-like protease for detergents suitable herein is described in WO 94/25583 to Novo. Other suitable proteases are described in EP 516 200 by Unilever.
One or a mixture of proteolytic enzymes may be incorporated in the compositions of the present invention, generally at a level of from 0.0001% to 2%, preferably from 0.001% to 0.2%, more preferably from 0.005% to 0.1% pure enzyme by weight of the composition.
If present in the detergent compositions of the present invention, the lipolytic enzyme component is generally present at levels of from 0.00005% to 2% of active enzyme by weight of the detergent composition, preferably 0.001 % to 1 % by weight, most preferably from 0.0002% to 0.05% by weight active enzyme in the detergent composition.
Suitable lipolytic enzymes for use in the present invention include those produced by micro-organisms of the Pseudomonas group, such as Pseudomonas stutzeri ATCC 19.154, as disclosed in British Patent 1, 372,034. Suitable lipases include those which show a positive immunological cross-section with the antibody of the lipase produced by the microorganism Pseudomonas Hisorescent IAM 1057. This lipase is available from Amano Pharmaceutical Co. Ltd., Nagoya, Japan, under the trade name Lipase P"Amano,"hereinafter referred to as"Amano-P."Other suitable commercial lipases include Amano-CES, lipases ex Chromobacter viscosum, e. g. Chromobacter viscosum var. lipolyticum NRRLB 3673, commercially available from Toyo Jozo Co., Tagata, Japan; Chromobacter viscosum lipases from U. S. Biochemical Corp., U. S. A. and Disoynth Co., The Netherlands, and lipases ex Pseudomonas gladioli.
Especially suitable lipases are lipases such as MI LipaseR and LipomaxR (Gist Brocades) and LipolaseR and Lipolase UltraR (Novo) which have found to be very effective when used in combination with the compositions of the present invention.
Also suitable are the lipolytic enzymes described in EP 258 068, WO 92/05249 and WO 95/22615 by Novo Nordisk and in WO 94/03578, WO 95/35381 and WO 96/00292 by Unilever.
Also suitable are cutinases [EC 3.1.1.50] which can be considered as a special kind of lipase, namely lipases which do not require interfacial activation. Addition of cutinases to detergent compositions have been described in e. g. WO-A-88/09367 (Genencor); WO 90/09446 (Plant Genetic System) and WO 94/14963 and WO 94/14964 (Unilever). The LIPOLASE enzyme derived from Humicola lanuginosa and commercially available from Novo (see also EPO 341,947) is a preferred lipase for use in the present invention.
Another preferred lipase for use in the present invention is D96L lipolytic enzyme variant of the native lipase derived from Humicola lanuginosa. Most preferably the Humicola lanuginosa strain DSM 4106 is used.
By D96L lipolytic enzyme variant is meant the lipase variant as described in patent application WO 92/05249 in which the native lipase ex Humicola lanuginosa has the aspartic acid (D) residue at position 96 changed to Leucine (L). According to this nomenclature said substitution of aspartic acid to Leucine in position 96 is shown : D96L. To determine the activity of the enzyme D96L the standard LU assay may be used (Analytical method, internal Novo Nordisk number AF 95/6-GB 1991.02.07). A substrate for D96L was prepared by emulsifying glycerine tributyrate (Merck) using gum-arabic as emulsifier. Lipase activity is assayed at pH 7 using pH stat. method.
The compositions may also contain one or a mixture of more than one amylase enzyme (a and/or P). W094/02597, Novo Nordisk A/S published February 03, 1994, describes cleaning compositions which incorporate mutant amylases. See also W095/10603, Novo Nordisk A/S, published April 20,1995. Other amylases known for use in cleaning compositions include both a-and (3-amylases. a-Amylases are known in the art and include those disclosed in US Pat. no. 5,003,257; EP 252,666; WO/91/00353 ; FR 2,676,456; EP 285,123; EP 525,610; EP 368,341; and British Patent specification no. 1,296,839 (Novo). Other suitable amylases are stabilityenhanced amylases described in W094/18314, published August 18,1994 and W096/05295, Genencor, published February 22,1996 and amylase variants having additional modification in the immediate parent available from Novo Nordisk A/S, disclosed in WO 95/10603, published April 95. Also suitable are amylases described in EP 277 216, W095/26397 and W096/23873 (all by Novo Nordisk).
Examples of commercial a-amylases products are Purafect Ox Am from Genencor and Termamyl 0, BanO FungamylO and Duramyl (g, all available from Novo Nordisk A/S Denmark. W095/26397 describes other suitable amylases: a-amylases characterised by having a specific activity at least 25% higher than the specific activity of Termamylo at a temperature range of 25 C to 55 C and at a pH value in the range of 8 to 10, measured by the Phadebas a-amylase activity assay. Suitable are variants of the above enzymes, described in W096/23873 (Novo Nordisk). Other preferred amylolytic enzymes with improved properties with respect to the activity level and the combination of thermostability and a higher activity level are described in W095/35382.
The amylolytic enzymes if present are generally incorporated in the compositions at a level of from 0.0001% to 2%, preferably from 0. 00018% to 0.06%, more preferably from 0.00024% to 0.048% pure enzyme by weight of the composition.
The compositions of the invention may additionally incorporate one or more cellulase enzymes. Suitable cellulases include both bacterial or fungal cellulases.
Preferably, they will have a pH optimum of between 5 and 12 and an activity above 50 CEVU (Cellulose Viscosity Unit). Suitable cellulases are disclosed in U. S. Patent 4,435,307, Barbesgoard et al, J61078384 and W096/02653 which disclose fungal cellulases produced respectively from Humicola insolens, Trichoderma, Thielavia and Sporotrichum. EP 739 982 describes cellulases isolated from novel Bacillus species. Suitable cellulases are also disclosed in GB-A-2.075.028; GB-A-2. 095. 275 ; DE-OS-2.247.832 and W095/26398.
Examples of such cellulases are cellulases produced by a strain of Humicola insolens (Humicola grisea var. thermoidea), particularly the Humicola strain DSM 1800.
Other suitable cellulases are cellulases originated from Humicola insolens having a molecular weight of about 50KDa, an isoelectric point of 5.5 and containing 415 amino acids; and a ~43kD endoglucanase derived from Humicola insolens, DSM 1800, exhibiting cellulase activity; a preferred endoglucanase component has the amino acid sequence disclosed in PCT Patent Application No. WO 91/17243. Also suitable cellulases are the EGIII cellulases from Trichoderma longibrachiatum described in W094/21801, Genencor, published September 29,1994. Especially suitable cellulases are the cellulases having color care benefits. Examples of such cellulases are cellulases described in European patent application No. 91202879.2, filed November 6,1991 (Novo). Carezyme and Celluzyme (Novo Nordisk A/S) are especially useful. See also W091/17244 and W091/21801. Other suitable cellulases for fabric care and/or cleaning properties are described in W096/34092, W096/17994 and W095/24471.
Peroxidase enzymes may also be incorporated into the compositions herein.
Peroxidasis are used in combination with oxygen sources, e. g. percarbonate, perborate, persulfate, hydrogen peroxide, etc. They are used for"solution bleaching", i. e. to prevent transfer of dyes or pigments removed from substrates during wash operations to other substrates in the wash solution. Peroxidase enzymes are known in the art, and include, for example, horseradish peroxidase, ligninase and haloperoxidase such as chloro-and bromo-peroxidase. Peroxidase-containing detergent compositions are disclosed, for example, in PCT International Application WO 89/099813, W089/09813 and in European Patent application EP No.
91202882.6, filed on November 6,1991 and EP No. 96870013.8, filed February 20, 1996. Also suitable is the laccase enzyme.
Preferred enhancers are substituted phenthiazine and phenoxasine 10 Phenothiazinepropionicacid (PPT), 10-ethylphenothiazine-4-carboxylic acid (EPC), 10-phenoxazinepropionic acid (POP) and 10-methylphenoxazine (described in WO 94/12621) and substituted syringates (C3-C5 substituted alkyl syringates) and phenols. Sodium percarbonate or perborate are preferred sources of hydrogen peroxide.
Said cellulases and/or peroxidases, if present, are normally incorporated in the composition at levels from 0.0001% to 2% of active enzyme by weight of the detergent composition.
Said additional enzymes, when present, are normally incorporated in the composition at levels from 0.0001% to 2% of active enzyme by weight of the detergent composition. The additional enzymes can be added as separate single ingredients (prills, granulates, stabilized liquids, etc. containing one enzyme) or as mixtures of two or more enzymes (e. g. cogranulates).
Additional organic polymeric compound Additional organic polymeric compounds, not present in the photo-bleaching agent or integreted with the photo-bleaching component herein, may be present in the compositions herein. By organic polymeric compound is meant any polymeric organic compound commonly used as dispersants, anti-redeposition or soil suspension agents in detergent compositions, including any of the high molecular weight organic polymeric compounds described as clay flocculating agents herein.
Such an organic polymeric compound is generally incorporated in the compositions at a level of from 0.1% to 30%, preferably from 0.5% to 15%, most preferably from I % to 10% by weight of the compositions.
Suitable polymers are disclosed in GB-A-1,596,756. Examples of such salts are polyacrylic acid or polyacrylates of MWt 1000-5000 and their copolymers with maleic anhydride, such copolymers having a molecular weight of from 2000 to 100, 000, especially 40,000 to 80,000. Polymaleates or polymaleic acid polymers and salts thereof are also suitable examples.
Polyamino compounds useful herein include those derived from aspartic acid including polyaspartic acid and such as those disclosed in EP-A-305282, EP-A305283 and EP-A-351629.
Terpolymers containing monomer units selected from maleic acid, acrylic acid, aspartic acid and vinyl alcohol or acetate, particularly those having an average molecular weight of from 1,000 to 30,000, preferably 3,000 to 10,000, are also suitable for incorporation into the compositions of the present invention.
Other organic polymeric compounds suitable for incorporation in the detergent compositions of the present invention include cellulose derivatives such as methylcellulose, carboxymethylcellulose, hydroxypropylmethylcellulose, ethylhydroxyethylcellulose and hydroxyethylcellulose.
Further useful organic polymeric compounds are the polyethylene glycols, particularly those of molecular weight 1000 to 10000, more particularly 2000 to 8000 and most preferably about 4000.
Cationic soil removal/anti-redeposition compounds The composition herein may comprise water-soluble cationic ethoxylated amine compounds with particulate soil/clay-soil removal and/or anti-redeposition properties. These cationic compounds are described in more detail in EP-B-111965, US 4659802 and US 4664848. Particularly preferred of these cationic compounds are ethoxylated cationic monoamines, diamines or triamines.
These compounds where present in the composition, are generally present in an amount of from 0.01 to 30% by weight, preferably 0.05 to 10% by weight.
Suds suppressing svstem It can be preferred that the cleaning composition require low-sudsing, and that thus incorporation of suds suppressant for foam control are desirable. They are preferably present in amounts no greater than 2.5% and most preferably in amounts no greater than 1.5% or even no greater than 0.5% by weight of the composition.
Suitable suds suppressing systems for use herein may comprise essentially any known antifoam compound, including, for example silicone antifoam compounds and 2-alkyl alcanol antifoam compounds.
By antifoam compound it is meant herein any compound or mixtures of compounds which act such as to depress the foaming or sudsing produced by a solution of a detergent composition, particularly in the presence of agitation of that solution.
Polymeric dye transfer inhibiting agents The compositions herein may also comprise from 0.01% to 10 %, preferably from 0.05% to 0.5% by weight of additional polymeric compounds, not comprised in the photo-bleaching agnet of the compositions of the invention, which act as dye transfer inhibiting agents.
The polymeric dye transfer inhibiting agents are preferably selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers or combinations thereof, whereby these polymers can be cross-linked polymers.
Optical brightener The compositions herein may optionally contain from about 0.005% to 5% by weight of certain types of hydrophilic optical brighteners.
Hydrophilic optical brighteners useful herein include those having the structural formula:
wherein R I is selected from anilino, N-2-bis-hydroxyethyl and NH-2-hydroxyethyl; R2 is selected from N-2-bis-hydroxyethyl, N-2-hydroxyethyl-N-methylamino, morphilino, chloro and amino; and M is a salt-forming cation such as sodium or potassium.
When in the above formula, RI is anilino, R2 is N-2-bis-hydroxyethyl and M is a cation such as sodium, the brightener is 4,4',-bis [ (4-anilino-6- (N-2-bis- hydroxyethyl)-s-triazine-2-yl) amino]-2,2'-stilbenedisulfonic acid and disodium salt.
This particular brightener species is commercially marketed under the tradename Tinopal-UNPA-GX by Ciba-Geigy Corporation. Tinopal-UNPA-GX is the preferred hydrophilic optical brightener useful in the detergent compositions herein.
When in the above formula, RI is anilino, R2 is N-2-hydroxyethyl-N-2-methylamino and M is a cation such as sodium, the brightener is 4,4'-bis [ (4-anilino-6- (N-2- hydroxyethyl-N-methylamino)-s-triazine-2-yl) amino] 2,2'-stilbenedisulfonic acid disodium salt. This particular brightener species is commercially marketed under the tradename Tinopal 5BM-GX by Ciba-Geigy Corporation.
When in the above formula, RI is anilino, R2 is morphilino and M is a cation such as sodium, the brightener is 4,4'-bis [ (4-anilino-6-morphilino-s-triazine-2-yl) amino] 2,2'stilbenedisulfonic acid, sodium salt. This particular brightener species is commercially marketed under the tradename Tinopal AMS-GX by Ciba Geigy Corporation.
Polvmeric Soil Release Agent Known polymeric soil release agents, hereinafter"SRA", can optionally be employed in the present compositions. If utilized, SRA's will generally comprise from 0.01 % to 10.0%, typically from 0.1% to 5%, preferably from 0.2% to 3.0% by weight, of the compositions.
Suitable SRA's include a sulfonated product of a substantially linear ester oligomer comprised of an oligomeric or polymeric ester backbone of terephthaloyl and oxyalkyleneoxy repeat units and allyl-derived sulfonated terminal moieties covalently attached to the backbone, for example as described in U. S. 4,968,451, November 6,1990 to J. J. Scheibel and E. P. Gosselink. Other SRA's include the nonionic end-capped 1,2-propylene/polyoxyethylene terephthalate polyesters of U. S.
4,711,730, December 8,1987 to Gosselink et al., for example those produced by transesterification/oligomerization of poly (ethyleneglycol) methyl ether, DMT, PG and poly (ethyleneglycol) ("PEG"). Other examples of SRA's include: the partly-and fully-anionic-end-capped oligomeric esters of U. S. 4,721,580, January 26,1988 to Gosselink; the nonionic-capped block polyester oligomeric compounds of U. S.
4,702,857, October 27,1987 to Gosselink ; and the anionic, especially sulfoaroyl, end-capped terephthalate esters of U. S. 4,877,896, October 31,1989 to Maldonado, Gosselink et al.
SRA's also include: simple copolymeric blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate, see U. S. 3,959,230 to Hays, May 25,1976 and U. S. 3,893,929 to Basadur, July 8,1975; cellulosic derivatives such as the hydroxyether cellulosic polymers available as METHOCEL from Dow; the C1-C4 alkyl celluloses and C4 hydroxyalkyl celluloses, see U. S. 4,000,093, December 28,1976 to Nicol, et al. ; and the methyl cellulose ethers having an average degree of substitution (methyl) per anhydroglucose unit from about 1.6 to about 2.3 and a solution viscosity of from about 80 to about 120 centipoise measured at 20 C as a 2% aqueous solution. Such materials are available as METOLOSE SM100 and METOLOSE SM200, which are the trade names of methyl cellulose ethers manufactured by Shin-etsu Kagaku Kogyo KK.
Other optional ingredients Other optional ingredients suitable for inclusion in the compositions of the invention include colours and filler salts, including speckles, with sodium sulfate being a preferred filler salt.
Near neutral wash pH detergent formulation While the cleaning compositions are operative within a wide range of wash pHs (e. g. from about 5 to about 12), they are particularly suitable when formulated to E near neutral wash pH, i. e. an initial pH of from about 7.0 to about 10.5 at a concentration of from about 0.1 to about 2% by weight in water at 20 C. Near neutral wash pH formulations are better for enzyme stability and for preventing stains from setting. In such formulations, the wash pH is preferably from about 7.0 to about 10.5, more preferably from about 8.0 to about 10.5, most preferably from 8.0 to 9.0.
Preferred near neutral wash pH detergent formulations are disclosed to European Patent Application 83.200688.6, filed May 16,1983, J. H. M. Wertz and P. C. E.
Goffinet.
Highly preferred cleaning compositions of this type also preferably contain from about 2 to about 10% by weight of citric acid and minor amounts (e. g., less than about 20% by weight) of neutralizing agents, buffering agents, phase regulants, hydrotropes, enzymes, enzyme stabilizing agents, polyacids, suds regulants, opacifiers, anti-oxidants, bactericides, dyes, perfumes and brighteners, such as those described in US Patent 4,285,841 to Barrat et al., issued August 25,1981 (herein incorporated by reference).
Form of the compositions The compositions in accordance with the invention and the cleaning compositions herein can take a variety of physical forms including solid forms such as granular, tablet, flake, pastille and bar and liquid forms. Liquids may be aqueous or nonaqueous and may be in the form of a gel, however, preferred are solid forms.
The cleaning compositions may be pre-treatment compositions or may be conventional washing detergents. It may be preferred that the cleaning compositions are particularly granular detergent compositions, preferably the so-called concentrated, adapted to be added to a washing machine by means of a dispensing device placed in the machine drum with the soiled fabric load.
Such granular detergent compositions or components thereof in accordance with the present invention can be made via a variety of methods, including spray-drying, drymixing, extrusion, agglomerating and granulation.
The bleaching compositions herein can be added to the other components of the cleaning compositions as a dry-add, mixed with the other component and agglomerated, extruded and/or spray-dried.
*The bleaching agent and the photo-bleaching agent may be premixed prior to addition to the other ingredients of the cleaning composition or the bleaching composition; the bleaching composition may also be pre-mixed with one or more of the additional ingredients of the cleaning composition, prior to further addition of the remaining ingredients.
The compositions can also be used in or in combination with bleach additive compositions, for example comprising chlorine bleach.
It may be preferred that the mean particle size of the components of granular compositions in accordance with the invention is such that no more than 15% of the particles are greater than 1. 8mm in diameter and not more than 15% of the particles are less than 0.25mm in diameter. However, it may be preferred that the composition comprises particles of mean particle size at least 0.8 mm, more preferably at least 1.0 mm and most preferably from 1.0, or 1.5 to 2.5 mm. Most preferably at least 95% of the particles will have such a mean particle size. Such particles are preferably prepared by an extrusion process.
The term mean particle size as defined herein is calculated by sieving a sample of the composition into a number of fractions (typically 5 fractions) on a series of sieves, preferably Tyler sieves. The weight fractions thereby obtained are plotted against the aperture size of the sieves. The mean particle size is taken to be the aperture size through which 50% by weight of the sample would pass.
Compacted solid detergents may be manufactured using any suitable compacting process, such as tabletting, briquetting or extrusion, preferably tabletting.
Laundrv washing method Machine laundry methods herein typically comprise treating soiled laundry with an aqueous wash solution in a washing machine having dissolved or dispensed therein an effective amount of a machine laundry detergent composition in accord with the invention. By an effective amount of the detergent composition it is meant from l Og to 300g of product dissolved or dispersed in a wash solution of volume from 5 to 65 litres, as are typical product dosages and wash solution volumes commonly employed in conventional machine laundry methods. Dosage is dependent upon the particular conditions such as water hardness and degree of soiling of the soiled laundry.
The detergent composition may be dispensed for example, from the drawer dispenser of a washing machine or may be sprinkled over the soiled laundry placed in the machine.
In one use aspect a dispensing device is employed in the washing method. Preferred dispensing devices are reusable and are designed in such a way that container integrity is maintained in both the dry state and during the wash cycle. Especially preferred dispensing devices for use with the composition of the invention have been described in the following patents ; GB-B-2,157,717, GB-B-2,157,718, EP-A0201376, EP-A-0288345 and EP-A-0288346. An article by J. Bland published in Manufacturing Chemist, November 1989, pages 41-46 also describes especially preferred dispensing devices for use with granular laundry products which are of a type commonly know as the"granulette". Another preferred dispensing device for use with the compositions of this invention is disclosed in PCT Patent Application No. W094/11562.
Especially preferred dispensing devices are disclosed in European Patent Application Publication Nos. 0343069 & 0343070. Alternatively, the dispensing device may be a flexible container, such as a bag or pouch. The bag may be of fibrous construction coated with a water impermeable protective material so as to retain the contents, such as is disclosed in European published Patent Application No. 0018678. Alternatively it may be formed of a water-insoluble synthetic polymeric material provided with an edge seal or closure designed to rupture in aqueous media as disclosed in European published Patent Application Nos. 0011500, 0011501,0011502, and 0011968. A convenient form of water frangible closure comprises a water soluble adhesive disposed along and sealing one edge of a pouch formed of a water impermeable polymeric film such as polyethylene or polypropylene.
Abbreviations used in Examples In the detergent compositions, the abbreviated component identifications have the following meanings: LAS Sodium linear C 11-13 alkyl benzene sulfonate TAS Sodium tallow alkyl sulfate CxyAS Sodium C1x-C1y alkyl sulfate C46SAS Sodium C14-C16 secondary (2,3) alkyl sulfate CxyEzS Sodium C1x-C1y alkyl sulfate condensed with z moles of ethylene oxide CxyEz C l X-C 1 y predominantly linear primary alcohol condensed with an average of z moles of ethylene oxide QAS R2. N+ (CH3) 2 (C2H40H) with R2 = C 12-C 14 QAS 1 R2. N+ (CH3) 2 (C2H40H) with R2 = Cg-C11 SADS Sodium Cl4-C22 alkyl disulfate of formula 2-(R). C4 H,.-1, 4- (S04-) 2 where R = C10-C18 SADE2S Sodium C, 4-C22 alkyl disulfate of formula 2-(R).C4 H7.-1, 4- (S04-) 2 where R =C10-C18, condensed with z moles of ethylene oxide MES x-sulpho methylester of C18 fatty acid APA C8-C10 amido propyl dimethyl amine Soap Sodium linear alkyl carboxylate derived from an 80/20 mixture of tallow and coconut fatty acids STS Sodium toluene sulphonate EFAA 1 C 12-c 14 fatty acid amide alcohol, condensed with an average of 5 moles of ethylene oxide EFAA 2 C 12-C 14 fatty acid amide alcohol, condensed with an average of 7 moles of ethylene oxide TPKFA C 16 C 18 topped whole cut fatty acids STPP Anhydrous sodium tripolyphosphate TSPP Tetrasodium pyrophosphate Zeolite A Hydrated sodium aluminosilicate of formula Nal2 (A102Si02) 12-27H2 having a primary particle size in the range from 0.1 to 10 micrometers (weight expressed on an anhydrous basis) NaSKS-6 Crystalline layered silicate of formula 5-Na2Si2O5 Citric acid Anhydrous citric acid Borate Sodium borate Carbonate Anydrous sodium carbonate with a particle size between 200um and 900um Bicarbonate Anhydrous sodium bicarbonate with a particle size distribution between 400um and 12001lu Silicate Amorphous sodium silicate (SiO2 : Na2O = 2.0: 1) Sulfate Anhydrous sodium sulfate Mg sulfate Anhydrous magnesium sulfate Citrate Tri-sodium citrate dihydrate of activity 86.4% with a particle size distribution between 425Rm and 850, um MA/AA Copolymer of 1: 4 maleic/acrylic acid, average molecular weight about 70,000 MA/AA (1) Copolymer of 4: 6 maleic/acrylic acid, average molecular weight about 10,000 AA Sodium polyacrylate polymer of average molecular weight 4,500 CMC Sodium carboxymethyl cellulose Cellulose ether Methyl cellulose ether with a degree of polymerization of 650 available from Shin Etsu Chemicals Protease Proteolytic enzyme, having 3.3% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Savinase Protease I Proteolytic enzyme, having 4% by weight of active enzyme, as described in WO 95/10591, sold by Genencor Int. Inc.
Alcalase Proteolytic enzyme, having 5.3% by weight of active enzyme, sold by NOVO Industries A/S Cellulase Cellulytic enzyme, having 0.23% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Carezyme Amylase Amylolytic enzyme, having 1.6% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Termamyl 120T Amylase II Amylolytic enzyme, as disclosed in PCT/US9703635 Lipase Lipolytic enzyme, having 2.0% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Lipolase Lipase (1) Lipolytic enzyme, having 2.0% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Lipolase Ultra Endolase Endoglucanase enzyme, having 1.5% by weight of active enzyme, sold by NOVO Industries A/S PB4 Sodium perborate tetrahydrate of nominal formula NaB02. 3H20. H202 PB 1 Anhydrous sodium perborate bleach of nominal formula NaB02. H202 Percarbonate Sodium percarbonate of nominal formula 2Na2C03. 3H202 DOBS Decanoyl oxybenzene sulfonate in the form of the sodium salt NOBS Nonanoyloxybenzene sulfonate in the form of the sodium salt NACA-OBS (6-nonamidocaproyl) oxybenzene sulfonate TAED Tetraacetylethylenediamine DTPA Diethylene triamine pentaacetic acid DTPMP Diethylene triamine penta (methylene phosphonate), marketed by Monsanto under the Tradename Dequest 2060 EDDS Ethylenediamine-N, N'-disuccinic acid, (S, S) isomer in the form of its sodium salt.
Photoactivated Sulfonated zinc phthlocyanine encapsulated in bleach (1) dextrin soluble polymer Photoactivated Sulfonated alumino phthlocyanine encapsulated in bleach (2) dextrin soluble polymer Brightener 1 Disodium 4,4'-bis (2-sulphostyryl) biphenyl Brightener 2 Disodium 4,4'-bis (4-anilino-6-morpholino-1. 3.5 triazin-2-yl) amino) stilbene-2: 2'-disulfonate HEDP 1,1-hydroxyethane diphosphonic acid PEGx Polyethylene glycol, with a molecular weight of x (typically 4,000) PEO Polyethylene oxide, with an average molecular weight of 50,000 TEPAE Tetraethylenepentaamine ethoxylate PVI Polyvinyl imidosole, with an average molecular weight of 20,000 PVP Polyvinylpyrolidone polymer, with an average molecular weight of 60,000 PVNO Polyvinylpyridine N-oxide polymer, with an average molecular weight of 50,000 PVPVI Copolymer of polyvinylpyrolidone and vinylimidazole, with an average molecular weight of 20,000 QEA bis ( (C2H50) (C2H40) n) CH3)-N±C6H12-N+~ (CH3) bis ( (C2H50)- (C2H40)) n, wherein n = from 20 to 30 SRP 1 Anionically end capped poly esters SRP 2 Diethoxylated poly (1,2 propylene terephtalate) short block polymer PEI Polyethyleneimine with an average molecular weight of 1800 and an average ethoxylation degree of 7 ethyleneoxy residues per nitrogen Silicone antifoam Polydimethylsiloxane foam controller with siloxane oxyalkylene copolymer as dispersing agent with a ratio of said foam controller to said dispersing agent of 10 : 1 to 100 : 1 Opacifier Water based monostyrene latex mixture, sold by BASF Aktiengesellschaft under the tradename Lytron 621 Wax Paraffin wax Particle 1 agglomerate containing, by weight 15% EFAA 1, 20% C245AS, 30% zeolite A, 20% sodium carbonate and 10% citric acid (anhydrous), 5% perfume Particle 2 agglomerate containing, by weight 20% EFAA 2, 40% LAS, 40% SKS-6 Example 1
A B C D E F Agglomerate EFAA 1 or 2 5.0 2.0 10. 0 - - 7.0 LAS 7.0 5.0 10.0 14. 0 2. 0 C245AS 3.0 2.0 2.0 2. 0 2. 5 2. 5 C45AE3S 1.0 1.0 1. 0 - - 0.5 C28AS 2. 0 1. 0 2.0 1. 0 0. 5 3. 5 Silicate 0.2-1. 0-0. 3 0. 8 Sodium carbonate 5. 0 5.0 6.0 - 2.0 10.0 MBAS-2. 0--5. 0 8. 0 SKS-6 0.7 4. 0 - 0.5 1.0 2.0 HEDP/EDDS 0.2 0.4--0. 2 0.7 Zeolite A 10.0 6.0 6. 0 12. 0 9. 0 10. 0 CMC 0. 5-0. 3 0. 8-0. 5 Agglomerate TAED 5.0 3.0-2. 0 4. 0 3. 0 MA/AA 1.0 0. 5 - 0.5 - 1.0 CMC - 0.5 - 0.5 - Agglomerate Zeolite A 2. 0 1.0-1. 0 2. 0 Sud suppressor 0.5 0.5 0. 3 0.2 0.1 0.2 MA/AA 0. 5 - - 0.2 - 0.2 Agglomerate QAS 1.0 0.5 1.0-1. 0 EFAA I---3. 0 Zeolite 2. 0 1.0 - - 2.0
Carbonate0. 51. 0 MA/AA-0. 1 Dry add Particle1 - - - 10 100 5.0 QEA 1. 0 0. 5-1. 0- HEDP/DTPA/EDDS 0. 3 0. 5-0. 5 0. 5 0. 5 MA/AA 1. 0 2. 0 3. 0-2. 0 2. 0 Mg sulphate 0.1 0.2 - - - 0.3 Brighener 0.1 - 0.2 0.2 - 0. 2 Zeolite 1.0 2.0 3.0 4.0 5.0 2. 0 SKS-6/silicate 10. 0 6. 0 5. 0 10. 0 10. 0 12. 0 Enzymes 0.5 0.8 0.8 1.2 1.2 1.0 CMC 0. 2-0. 3-0. 5 0. 5 Soap 0.5 - - 0.5 1.0 NACA OBS-3. 0--3. 0 photobleach 0.1 0.1 - - 0.2 0.2 Speckles 0. 5 0. 2 0. 7 0. 3 Carbonate 6. 0 5. 0 2. 0 8. 0 7. 0 Sodium chloride 0. 2-0. 5- Sodium sulphate 2. 0 3. 0-8. 0-3. 0 Percarbonate 18.0 10.0 - 22.0 20.0 10.0 Citric acid 1.0 0.5 2.0 3.0 2.0 Spray on EFAA-2. 0--1. 0 AE5 - - - - 0.5 Perfiune 0. 2 0. 1 0. 5 0. 2 Brightener 0.1 0.2 0.1 0.1 0. 1 0. 1 Example 2
G H I JKL Spray dried powder Base: LAS 7. 0 6. 0 3.0 - 4.0 MBAS--5. 0- Tallow alkyl suphate 1.0 - 1.0 1.0 - 1.0 C245AS - - 0.5 - - 1. 0 Sodium sulphate 3. 0 5.0 3.0 2.0 - 3.0 C24AE35-0. 5-0. 5-0. 7 EFAA 1 or 2 5.0 7. 0 - - - Additives : Sodiumcarbonate 3. 0 6. 0 1. 0 3. 0 5. 0 3. 0 Sodiumsuplhate - 1.0 2.0 2.0 - 5.0 Zeolite A 16.0 10.0 5. 0 10. 0 6. 0 MA/AA 1.0 - 1. 0 0.5 1. 0 Mg sulphate 0. 1 0. 1-0. 1-0. 1 Brightener 0.2 0.1 - - 0.3 0.5 Chelant 0.5 0.5 - 0.3 0.2 0. 4 Water 0. 2 0.1 0.1 0.05 0.05 0.3 Agglomerate EFAA 1 5.0 7. 0 - - - LAS - 3. 0 5.0 2.0-5.0 C45AS-2. 0 3.0 2. 0 - Carbonate - 5. 0 7.0 5.0 Sulphate-3. 0-2. 0-3. 0 Zeolite A-4. 0 8. 0 3.0-9.0 Dry add QEA 1. 0 1.0 1.0 - 1.0
Sudsuppressor 0. 5 0. 5 0. 5 1. 0 0. 2 0. 3 Percarbonatelperborate 20. 0 14. 0-22. 0 18. 0 10. 0 TAED 4.0 3.0 - - 2.0 3. 5 NACA OBS-3. 0-4. 2 2. 5- Zeolite A 6. 0 3. 0 5. 0-7. 0 12. 0 SKS-6/silicate 8. 0 12. 0 5. 0 9. 0-8. 0 Citric acid/citrate 2.0 1.0 3.0 - - 2.0 Speckle (carbonate) 0.3 0.5 0.4 - - 0. 5 Sodium carbonate 5. 0-8. 0 10. 0-6. 0 Sodium sulphate 10. 0 5. 0-3. 0-14. 0 CMC 0.5 0.5 0.2 - - 0.3 Soap 0. 5 0. 5--0. 5- Enzymes 1. 0 1. 5 1. 0 1. 0 1. 0 1. 0 SRP 0. 1 0. 2 0. 3-0. 3- HEDP/EDDS/DTPA 0. 5 0. 5-0. 2 0. 8 0. 3 Spray-on EFAA--1. 5 2. 0 4. 0 2. 5 Perfume 0.3 0.3 0.2 0.5 0.2 0. 3 Example 3
M N O P Q R Blown powder LAS 23. 0 8.0 7.0 9. 0 7. 0 7.0 TAS----1. 0- C45AS 6. 0 6. 0 5. 0 8. 0-- EFAA 2.0 - 50. - - 3. 0 C45AE35-1. 0 1. 0 1.0 - 2. 0 C45E35 - - - - 2.0 4. 0 Zeolite A 10. 0 18.0 14.0 12. 0 10. 0 14.0 MA/AA-0. 5---2. 0 MA/AA (1) 7. 0 - - - - AA - 3. 0 3.0 2. 0 3. 0 3.0 Sulfate 5.06.3 6.3 14.3 11.0 15.0 19. 3 Silicate 10.0 1.0 1.0 1.0 1.0 1.0 Cabronate 15.0 20.0 10.0 10.7 8.0 6.0 PEG4000 0. 4 1.5 1. 5 1. 0 1. 0 1.0 DTPA - 0. 9 0.5--0.5 Brightener 2 0. 3 0.2 0.3 - 0.1 0. 3 Spray on EFAA 1 or 2 3. 0 2.0 1. 0 - - C23E9--1. 5--- Perume 0.3 0.3 0.3 2.0 0.3 0.3 Agglomerates C45AS-5. 0 5.0 2. 0-5.0 LAS-2. 0 2. 0--2. 0 Zeolite A - 7. 5 7.5 8. 0-7.5 Carbonate - 4.0 4.0 5.0 - 4. 0
PEG 4000 - 0.5 0.5 - - 0. 5 Misc (water etc)-2. 0 2. 0 2. 0-2. 0 Particle I or 2-5. 0-10. 0 5. 0- Dry additives QAS (I) - - - - 1.0 Citric acid 2. 0 PB4 - - - - 12.0 1. 0 PB1-4. 0 3. 0--- Percarbonate 4. 0--2. 0-10. 0 Carbonate - 5.3 1.8 - 4.0 4. 0 NOBS 4. 0 6. 0 0. 6 Methyl cellulose 0.2 - - - - SKS-6 8.0 - - - - STS--2. 0-1. 0- Cumene sulfonic acid-1. 0---2. 0 Lipase 0.2 - 0.2 - 0.2 0. 4 Cellulase 0. 2 0. 2 0 2 0. 3 0. 2 0. 2 Amylase 0. 2-0. 1-0. 2 Protease 0.5 0.5 0.5 0.3 0.5 0. 5 PVPVI - - - - 0.5 0. 1 PVP - - - - 0.5 PVNO--0. 5 0. 3 - QEA - - - - 1.0 SRP1 0.2 0.5 0. 3 - 0.2 Silicone antifoam 0.2 0.4 0.2 0.4 0.1 encapsulated erfume - 0.5 0.3 - 1.0 Mg sulfate - - 0.2 - 0.2 Silica 0. 2 0. 2 0. 2 - 0.2 Misc/minors to 100% Example 4 The following nil bleach-containing detergent formulations of particular use in the washing of coloured clothing, according to the present invention were prepared:
S T U Blown Powder Zeolite A 15. 0 15. 0 Sulfate 0. 0 5. 0 LAS 3.0 3.0 DTPMP 0.4 0.5 CMC 0. 4 0. 4 MA/AA 4. 0 4. 0 Agglomerates C45AS--11. 0 LAS 6. 0 5. 0- TAS 3. 0 2. 0 EFAA 1 5. 0 Silicate 4. 0 4. 0 Zeolite A 10. 0 15. 0 13. 0 CMC 0. 5 MA/AA - - 2.0 Carbonate 9. 0 7. 0 7. 0 Spray On perfume 0.3 0.3 0.5 EFAA 2 4. 0 3. 0- C25E3 2. 0 2. 0 2. 0 Dry additives
Particle 1 or 2 10. 0 MA/AA 3. 0 NaSKS-6--12. 0 Citrate 10. 0-8. 0 Bicarbonate 7. 0 3. 0 5. 0 Carbonate 8. 0 5. 0 7. 0 PVPVI/PVNO 0. 5 0. 5 0. 5 Alcalase 0. 5 0. 3 0. 9 Lipase 0. 4 0. 4 0. 4 Amylase 0. 6 0. 6 0. 6 Cellulase 0. 6 0. 6 0. 6 Silicone antifoam 5. 0 5. 0 5. 0 Dry additives Sulfate 0. 0 9. 0 0. 0 Misc/minors to 100% 100.0 100.0 100. 0 Density (g/litre) 700 700 700 Example 5 The following detergent compositions, according to the present invention were prepared:
v w x Blown Powder Zeolite A 15. 0 15. 0 15. 0 Sulfate 0. 0 5. 0 0. 0 LAS 3. 0 3. 0 3. 0 QAS-1. 5 1. 5 DTPMP 0. 4 0. 2 0. 4 EDDS-0. 4 0. 2 CMC 0. 4 0. 4 0. 4 MA/AA 4. 0 2. 2. 0 Agglomerates LAS 5. 0 5. 0 5. 0 TAS 2. 0 2. 0 1. 0 Silicate 3. 0 3. 0 4. 0 Zeolite A 8. 0 8. 0 8. 0 Carbonate 8. 0 8. 0 4. 0 Spray On Perfume 0.3 0.3 0.3 EFAA 1 1. 0 3. 0 2. 0 Dry additives Particle 1 or 2 5. 0-- Citrate 5. 0-2. 0 Bicarbonate-3. 0 Carbonate 8. 0 15. 0 10. 0
TAED 6. 0 2. 0 5. 0 PB1 14. 0 7. 0 10. 0 PEO - - 0.2 encapsulated perfume 0. 3 0. 2- Bentonite clay--10. 0 Protease 1. 0 1. 0 1. 0 Lipase 0.4 0.4 0.4 Amylase 0. 6 0. 6 0. 6 Cellulase 0. 6 0. 6 0. 6 Silicone antifoam 5.0 5.0 5. 0 Dry additives Sodium sulfate 0. 0 3.0 0.0 Misc/minors to 100% 100. 0 100. 0 100. 0 Density (g/litre) 850 850 850 Example 6 The following formulations are examples of compositions in accordance with the invention, which may be in the form of granules or in the form of a tablet.
Y Z AA BB CC C45 AS/TAS 8. 0 5. 0 3. 0 3. 3. 0 LAS 8.0 - 8.0 - 7. 0 C25AE3S 0. 5 2. 0 1. 0 EFAA 1 5.0 10.0 4.0 - 2. 0 C25AE5/AE3 - - - 2.0 2. 0 QAS---1. 0 1. 0 Zeolite A 20. 0 10. 0 10. 0-- SKS-6 (dry add)--2. 0 MA/AA 2.0 2.0 2.0 - particle 1 or 2 - - - 15 25 AA - - - - 4. 0 Citrate-2. 0-- Citric acid 2.0 - 1.5 2.0 DTPA 0. 2 0. 2 EDDS--0. 5 0. 1 HEDP--02 0. 1- PB1 30 5.0 10.0 - 4. 0 Percarbonate---18. 0- NOBS 3. 0 4. 0--4. 0 NACA OBS - - 2.0 - TAED--2. 0 5. 0- Carbonate 15. 0 18. 0 8.0 15. 0 15.0 Sulphate 5. 0 12. 0 2.0 17. 0 3.0
Silicate-1. 0--8. 0 Enzyme0303 1. 01. 0 0.2 Minors (Brightener/SRP1/ 0.5 0.5 0.5 0. 0. 5 CMC/Photobleach/MgSO4/ PVPVI/Suds suppressor/ PEG) Perfume 0. 2 0.3 0. 5 2. 0 1.2 Example 7 The following laundry bar detergent compositions were prepared in accord with the invention (levels are given in parts per weight).
DD EE FF GG HH II JJ KK LAS - - 19. 0 15.0 21.0 6. 75 8. 8- C28AS 30.0 13.5 - - - 15.75 11.2 22. 5 Sodium laurate 2. 5 9. 0---- Zeolite A 2.0 1.25 - - - 1.25 1.25 1. 25 Carbonate 20.0 3.0 13. 0 8. 0 10. 0 15. 0 15. 0 10. 0 Calcium 27. 5 39. 0 35. 0--40. 0-40. 0 carbonate Sulfate 5. 0 5 0 3. 0 5.0 3. 0--5. 0 STPP 5.0 15.0 10.0 - - 7.0 8.0 10. 0 Bentonite clay-10. 0--5. 0--- DTPMP-0. 7 0. 6-0. 6 0. 7 0. 7 0. 7 CMC - 1.0 1.0 1.0 1.0 - - 1.0 Talc - - 10. 0 15. 0 10. 0- Silicate - - 4. 0 5. 0 3. 0 - - PVNO 0. 02 0. 03-0. 01-0. 02-- MA/AA 0. 4 1. 0--0. 2 0. 4 0. 5 0. 4 SRP1 0.3 0.3 0. 3 0. 0.3 0.3 0.3 0.3 Protease-0. 12-0. 08 0.08--0. 1 Lipase - 0.1 - 0.1 - - - Amylase 0 8 0. 1 Cellulase 0. 15--0. 15 0. 1 PEO - 0.2 - 0.2 0.3 - - 0.3 Perfume 1.0 0.5 0.3 0.2 0.4 3.0 2.0 0.4
Mg sulfate - - 3. 0 3.0 3.0 Brightener 0. 15 0.10 0.15--0. 1 Photoactivated-15. 0 15. 0 15.0 15.0--15.0 bleach (ppm) EFAA 1 2. 0 3.0 5. 0 1. 0 8.0 2.0 10.0 3. 0

Claims (14)

  1. Claims 1. A detergent composition comprising a) from 0.1% to 50% by weight of a nonionic polyalkoxylated fatty acid amide of the formula:
    wherein R, is a C, 2-C, 8 alkyl or alkenyl group, R2 is a C2-C4 alkylene group, R3 is a C,-C4 alkyl group or preferably hydrogen, R4 is a C,-C4 alkyl group or preferably hydrogen and n is a number from 3 to 12; and b) from 0.01% to 10% by weight of a perfume.
  2. 2. A detergent composition according to claim 1 wherein the nonionic polyalkoxylated fatty acid amide and the perfume component are comprised in a particle, preferably in an intimate mixture with one another, the mixture preferably being in the form of a sprayed-on component.
  3. 3. A detergent composition according to claim 1 or 2, containing an anionic surfactant.
  4. 4. A detergent composition according to claim 3 whereby the nonionic polyalkoxylated fatty acid amide and the anionic surfactant are comprised in a particle in an intimately mixture, the anionic surfactant preferably being present at a level of 3% to 50% by weight of the particle.
  5. 5. A detergent composition according to claim 3 whereby the anionic surfactant is comprised in a particle, preferably from 3% to 50% by weight of the particle, the particle comprising a sprayed-on component containing the nonionic polyalkoxylated fatty acid amide and preferably containing the perfume component.
  6. 6. A detergent composition according to any preceding claim, which is phosphate free and comprises an aluminosilicate builder.
  7. 7. A detergent composition according to any preceding claim comprising an effervescence source, preferably comprising an acid and an alkali source, capable of producing a gas upon contact with water, preferably an organic carboxylic acid and a carbonate source.
  8. 8. A detergent composition according to any preceding claim, comprising less than 2% by weight of nonionic polyalkoxylated alcohol, preferably being substantially free of nonionic polyalkoxylated alcohol surfactants.
  9. 9. A detergent composition according to any preceding claim wherein the alkoxylated amide surfactant is a polyethoxylated C, 2-C, 8 fatty acid amide with an average ethoxylation degree of 5 to 9, preferably 5.
  10. 10. A detergent composition according to any preceding claims, comprising a dye or brightener or mixture thereof.
  11. 11. A detergent composition according to any preceding claim comprising a bleach, preferably an oxygen bleach comprising a peroxygen compound, preferably sodium percarbonate.
  12. 12. A composition according to any preceding claim in the form of granules, pastilles, extrudates or tablets.
  13. 13. Use of a nonionic alkoxylated fatty acid amide surfactant in a detergent composition, preferably bleach-containing composition, comprising a perfume component for the reduction of loss of performance of the perfume component.
  14. 14. Use of a nonionic alkoxylated fatty acid amide surfactant in or sprayed-on detergent particles comprising anionic surfactant or alumnosilicate or mixtures thereof, for improvement of the delivery to the wash of said detergent particles.
GB9828488A 1998-12-24 1998-12-24 Detergent compositions Withdrawn GB2345066A (en)

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PCT/US1999/029553 WO2000039258A1 (en) 1998-12-24 1999-12-13 Detergent compositions

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154421A1 (en) * 1984-02-09 1985-09-11 Creative Products Resource Associates Ltd. Automatic dishwasher product

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Publication number Priority date Publication date Assignee Title
CH619264A5 (en) * 1977-02-02 1980-09-15 Savonnerie Union Generale
US5874393A (en) * 1994-12-15 1999-02-23 Colgate-Palmolive Co. Microemulsion light duty liquid cleansing composition
DE19650537A1 (en) * 1996-12-05 1998-06-10 Basf Ag Detergents for e.g. textiles, metal processing or paper making
FR2766838B1 (en) * 1997-07-29 2003-06-13 Rhodia Chimie Sa PROCESS FOR THE PREPARATION OF A SOLID DIVIDED SYSTEM BASED ON A NON-IONIC SURFACTANT AND AN ALKALI METAL SILICATE AND USE OF THE SAME AS A DETERGENCE SYSTEM

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154421A1 (en) * 1984-02-09 1985-09-11 Creative Products Resource Associates Ltd. Automatic dishwasher product

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