WO2022271897A1 - Composition de détergent pour le soin des couleurs - Google Patents

Composition de détergent pour le soin des couleurs Download PDF

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Publication number
WO2022271897A1
WO2022271897A1 PCT/US2022/034639 US2022034639W WO2022271897A1 WO 2022271897 A1 WO2022271897 A1 WO 2022271897A1 US 2022034639 W US2022034639 W US 2022034639W WO 2022271897 A1 WO2022271897 A1 WO 2022271897A1
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WO
WIPO (PCT)
Prior art keywords
surfactant
detergent composition
alkyl
copolymer
laundry detergent
Prior art date
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PCT/US2022/034639
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English (en)
Inventor
Francesco BARBERO
Debora BERTI
Giulia Ottavia Bianchetti
Camilla Maria COVA
Phillip Kyle Vinson
Original Assignee
The Procter & Gamble Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP22165838.8A external-priority patent/EP4108748A1/fr
Application filed by The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to CN202280007506.8A priority Critical patent/CN116438283A/zh
Priority to JP2023526592A priority patent/JP2023548360A/ja
Priority to CA3199892A priority patent/CA3199892A1/fr
Publication of WO2022271897A1 publication Critical patent/WO2022271897A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines

Definitions

  • Laundry detergent compositions especially liquid laundry detergent compositions or unit dose articles providing improved care of coloured fabric.
  • Laundry detergent compositions are formulated to provide good cleaning to fabrics: To keep white fabrics white, and to keep coloured fabrics bright.
  • the laundry detergent compositions are also typically formulated to remove stains and soils.
  • the laundry detergent compositions have been known to also remove dyes from coloured fabrics, resulting in fading of coloured fabrics.
  • the dyes can deposit onto other fabrics being washed in the same cycle, resulting in discoloration of the co-washed fabrics.
  • dye-transfer inhibiting (DTI) polymers are often incorporated into detergent compositions marketed for cleaning coloured fabrics.
  • Typical dye-transfer inhibitors are typically based on polymers such as polyvinyl pyrrolidone homopolymers (PVP), polyvinyl pyrrolidone / polyvinyl imidazole copolymers (PVP/PVI), and poly-4-vinylpyridine N-oxide (PVNO).
  • PVP polyvinyl pyrrolidone homopolymers
  • PVNO polyvinyl pyrrolidone /PVI
  • PVNO poly-4-vinylpyridine N-oxide
  • W02010025116A1 relates to stable colour maintenance and/or rejuvenation compositions comprising at least one cationic polymer and anionic surfactant, and methods for providing the same.
  • W02013070560A1 relates to surface treatment compositions comprising certain cationic polymer(s), anionic surfactant, one or more shielding salts and hydrophobic association disruptor, the surface treatment compositions comprises at least 6 % by weight of cationic polymer, at least 6% by weight anionic surfactant, and at least 4 % by weight of the shielding salt, the weight ratio of anionic surfactant to cationic polymer is between 0.5:1 and 4:1, the composition may also have a weight ratio of shielding salt to cationic polymer of between 0.3:1 and 3:1.
  • WO01/72937A1 relates to a method of reducing dye loss during the laundry treatment of dyed fabrics using a laundry treatment composition comprising a water-soluble or water-dispersible rebuild agent for deposition onto a fabric during a treatment process wherein the material undergoes during the treatment process, a chemical change by which change the affinity of the material for the fabric is increased.
  • WO2014139577A1 relates to a two-component colour detergent composition for use at low temperature comprising or consisting of a first component comprising at least one non-ionic surfactant, and a second component comprising at least one percarbonate (a bleach), and tetraacetylethylenediamine (TAED), as well as to a method for preparing such two-component colour detergent composition and to their use for cleaning laundry items, in particular coloured laundry items.
  • WO2017/044749A1 relates to a laundry or cleaning composition comprising (i) from about 0.001 wt. % to about 50 wt.
  • APT AC polydiallyl dimethyl ammonium chloride Poly
  • DADMAC polydiallyl dimethyl ammonium chloride poly(
  • the present invention relates to a laundry detergent composition
  • a laundry detergent composition comprising a surfactant system and cationic polymer
  • the surfactant system comprises: a branched nonionic surfactant
  • the cationic polymer is selected from: poly (diallyldimethylammonium chloride); copolymer of diallyldimethylammonium chloride and acrylic acid; copolymer of acrylamide and methacrylamidopropyltrimethyl ammonium chloride; copolymer of acrylamide and diallyldimethylammonium chloride; copolymer of methacrylate, methacrylamidopropyltrimethyl ammonium chloride and acrylic acid; copolymer of acrylamide, methacrylamidopropyltrimethyl ammonium chloride and acrylic acid; copolymer of acrylamide, diallyldimethylammonium chloride, and acrylic acid; copolymer of acrylamide and N,N, N- trimethyl aminoethyl acrylate
  • the present invention further relates to the use of a laundry detergent composition comprising a branched nonionic surfactant for improving the colour protection, preferably colour retention, of coloured fabrics during laundering.
  • the detergent compositions of the present invention have been found to result in reduced dye fading during laundering.
  • component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.
  • the laundry detergent composition can be in any suitable form, such as liquid, paste, granular, solid, powder, or in conjunction with a carrier such as a substrate.
  • Preferred laundry detergent compositions are either liquid or granular, with liquid being most preferred.
  • liquid detergent composition refers to liquid detergent composition which is fluid, and preferably capable of wetting and cleaning a fabric, e.g., clothing in a domestic washing machine.
  • laundry detergent composition refers to compositions suitable for washing clothes.
  • the composition can include solids or gases in suitably subdivided form, but the overall composition excludes product forms which are non-fluid overall, such as tablets or granules.
  • the liquid laundry detergent composition preferably has a density in the range from 0.9 to 1.3 grams per cubic centimetre, more specifically from 1.00 to 1.10 grams per cubic centimetre, excluding any solid additives but including any bubbles, if present.
  • the composition can be an aqueous liquid laundry detergent composition.
  • the water content can be present at a level of from 5.0 % to 95 %, preferably from 25 % to 90 %, more preferably from 50 % to 85 % by weight of the liquid detergent composition.
  • the pH range of the detergent composition is from 6.0 to 8.9, preferably from pH 7 to 8.8.
  • the detergent composition can also be encapsulated in a water-soluble film, to form a unit dose article.
  • unit dose articles comprise a detergent composition of the present invention, wherein the detergent composition comprises less than 20%, preferably less than 15%, more preferably less than 10% by weight of water, and the detergent composition is enclosed in a water- soluble or dispersible film.
  • Such unit-dose articles can be formed using any means known in the art. Suitable unit-dose articles can comprise one compartment, wherein the compartment comprises the liquid laundry detergent composition. Alternatively, the unit-dose articles can be multi-compartment unit-dose articles, wherein at least one compartment comprises the liquid laundry detergent composition.
  • the cationic polymer is selected from the group consisting of: poly (diallyldimethylammonium chloride) (polyquaternium 6); copolymer of diallyldimethylammonium chloride and acrylic acid (such as polyquaternium 22); copolymer of acrylamide and methacrylamidopropyltrimethyl ammonium chloride; copolymer of acrylamide and diallyldimethylammonium chloride (polyquaternium 7); copolymer of methacrylate, methacrylamidopropyltrimethyl ammonium chloride and acrylic acid (polyquaternium 47); copolymer of acrylamide, methacrylamidopropyltrimethyl ammonium chloride and acrylic acid (polyquaternium 53); copolymer of acrylamide, diallyldimethylammonium chloride, and acrylic acid (polyquaternium 39); copolymer of acrylamide and N,N, N-trimethyl aminoethyl acrylate; copolymer
  • the preferred ratio of diallyldimethylammonium chloride to acrylic acid is between approximately 90:10 and 50:50.
  • the preferred cationic polymer is a copolymer of diallyldimethylammonium chloride and acrylic acid at a 65/35 mole ratio with a molecular weight of approximately 450,000.
  • the copolymer of diallyldimethylammonium chloride and acrylic acid may be further described by the nomenclature Polyquaternium-22 or PQ22 as named under the International Nomenclature for Cosmetic Ingredients.
  • Copolymers of acrylamide and diallyldimethylammonium chloride may be further described by the nomenclature Polyquatemium-7 or PQ7 as named under the International Nomenclature for Cosmetic Ingredients.
  • Table 1 below includes cationic charge densities and monomer molecular weights for selected cationic polymers.
  • the cationic polymer can be present at a level of from 0.1 % to 10 %, preferably 0.5 % to 5.0 %, more preferably from 1.0 % to 2.5 % by weight of the composition.
  • the cationic polymer has a molecular weight of from 1,000 Da to 1,250,000 Da, preferably from 100,000 Da to 1,000,000 Da, more preferably from 250,000 Da to 750,000 Da.
  • the cationic polymer can have a charge density in the range of 0.05 to 25 meq/g when calculated at pH 7.
  • the molecular weight, charge density, and presence of hydrophobic units within the polymer structure of the cationic polymer may affect the ability of the shielding salt to effectively prevent the polymer-surfactant complex from forming.
  • charge density may be in the range of 0.05 to 25 meq/g when calculated at pH 7, or preferably below 7.0 meq/g, more preferably below 5.0 meq/g, and even more preferably below 3.0 meq/g when calculated at pH 7.
  • charge density refers to the charge density of the final polymer and may be different from the monomer feedstock. Charge density may be calculated by dividing the number of net charges per repeating unit by the molecular weight of the repeating unit and then multiplying by 1000. It should be noted that the positive charges may be located on the backbone of the cationic polymer and/or on the side chains of the cationic polymer. In the case of cationic polymers with amine monomers, the charge density depends on the pH of the carrier and thus the charge density for comparison with this disclosure should be measured at pH of 7.
  • the laundry composition comprises a surfactant system at a level of from 2.5 % to 60 %, preferably from 5.0 % to 25 %, more preferably from 7.0 % to 15 % by weight of the composition.
  • Suitable surfactants as used herein means surfactants or mixtures of surfactants that provide cleaning, stain removing, or laundering benefit to soiled material.
  • Suitable detersive surfactants can be: anionic surfactant, nonionic surfactant, zwitterionic surfactant, and combinations thereof.
  • the surfactant system comprises branched nonionic surfactant.
  • the surfactant system can further comprise a surfactant selected from the group consisting of: anionic surfactant, amphoteric surfactant, and mixtures thereof.
  • the surfactant system can comprise a combination of anionic and nonionic surfactant, more preferably a combination of anionic surfactant, nonionic surfactant, and amphoteric surfactant.
  • surfactants comprising saturated alkyl chains are used.
  • the surfactant system can comprise branched nonionic surfactant at a level of from 0.1% to 12%, preferably from 0.5% to 10%, more preferably from 1.0% to 3.0% by weight of the composition.
  • Suitable branched nonionic surfactants can be derived from primary or secondary alcohols.
  • the branched nonionic surfactant are selected from: a) Formula I: Rl-CH(R2)-0-(P0) x (E0) y (P0) z -H
  • R1 is a C4 to C14 alkyl chain, preferably C4 to C8, more preferably C6;
  • R2 is a Cl to C7 alkyl chain, preferably a Cl to C5, more preferably C3 alkyl chain;
  • x is from 0 to 10, preferably from 0 to 5, more preferably from 0 to 3;
  • y is from 5 to 20, preferably from 6 to 15, more preferably from 7 to 12; and
  • z is from 0 to 20, preferably from 0 to 5, more preferably from 0 to 3, EO stands for ethoxylation and PO stands for propoxylation;
  • Formula II Rl-CH(R2)CH 2 -O-(PO) x (E0) y (PO) z -H
  • R1 is a C3 to C13 alkyl chain, preferably C3 to C7, more preferably C5;
  • R2 is a Cl to C7 alkyl chain, preferably a Cl to C5, more preferably C3 alkyl chain;
  • x is from 0 to 10, preferably from 0 to 5, more preferably from 0 to 3;
  • y is from 5 to 20, preferably from 6 to 15, more preferably from 7 to 12; and
  • z is from 0 to 20, preferably from 0 to 5, more preferably from 0 to 3, EO stands for ethoxylation and PO stands for propoxylation.
  • Preferred branched non-ionic ethoxylates according to formula I are those available under the tradenames Tergitol ® 15-S, with an alkoxylation degree of from 3 to 40. For instance Tergitol ® 15-S-20 which has an average degree of alkoxylation of 20.
  • Other suitable commercially available material according to formula I are the ones available under the tradename Softanol ® M and EP series.
  • Preferred branched nonionic surfactants according to formula II are the Guerbet CIO alcohol ethoxylates with 7 or 8 EO, such as Ethylan ® 1007 & 1008, and the Guerbet CIO alcohol alkoxylated nonionic surfactants (which are ethoxylated and/or propoxylated) such as the commercially available Lutensol ® XL series (XL50, XL70. etc).
  • Other exemplary alkoxylated branched nonionic surfactants include those available under the trade names: Lutensol ® XP30, Lutensol ® XP-50, and Lutensol ® XP-80 available from BASF Corporation.
  • Lutensol ® XP-30 can be considered to have 3 repeating ethoxy groups
  • Lutensol ® XP-50 can be considered to have 5 repeating ethoxy groups
  • Lutensol ® XP-70 can be considered to have 7 repeating ethoxy groups.
  • Other suitable branched nonionic surfactants include oxo branched nonionic surfactants such as the Lutensol ® ON 50 (5 EO) and Lutensol ® ON70 (7 EO).
  • Other suitable branched nonionic surfactants include Plurafac ® SLF 170 (3PO, 12EO, 15PO).
  • ethoxylated fatty alcohols originating from the Fischer & Tropsch reaction comprising up to 50% branching (40% methyl (mono or bi), 10% cyclohexyl) such as those produced from the Safol ® alcohols from Sasol; ethoxylated fatty alcohols originating from the oxo reaction wherein at least 50 % by weight of the alcohol is C2 isomer (methyl to pentyl) such as those produced from the Isalchem ® alcohols or Lial ® alcohols from Sasol.
  • the liquid detergent composition can comprise further nonionic surfactant.
  • the level of further nonionic surfactant in the liquid detergent composition can be present at a level of less than 15 wt%, preferably less than 7.0 wt%, more preferably less than 5.0 wt%, and even more preferably less than 3.0 wt %. Most preferably, the composition is free of further nonionic surfactant.
  • Suitable nonionic surfactants include, but are not limited to linear C12-C18 alkyl ethoxylates ("AE") including the so-called narrow peaked alkyl ethoxylates and C6-C12 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), block alkylene oxide condensate of C6-C12 alkyl phenols, alkylene oxide condensates of C8-C22 alkanols and ethylene oxide/propylene oxide block polymers (Pluronic - BASF Corp.), as well as semi polar nonionics (e.g., amine oxides and phosphine oxides) can be used in the present compositions.
  • AE linear C12-C18 alkyl ethoxylates
  • C6-C12 alkyl phenol alkoxylates especially ethoxylates and mixed ethoxy/propoxy
  • Alkylpolysaccharides such as disclosed in U.S. Pat. 4,565,647 are also useful nonionic surfactants in the compositions of the invention.
  • alkyl polyglucoside surfactants are also suitable.
  • nonionic surfactants of use include those of the formula Ri(OC2H4) n OH, wherein Ri is a linear C10-C16 alkyl group or a C8-C12 alkyl phenyl group, and n is from preferably 3 to 80.
  • the nonionic surfactants may be condensation products of linear C12- C15 alcohols with from 5 to 20 moles of ethylene oxide per mole of alcohol, e.g., C12-C13 alcohol condensed with 6.5 moles of ethylene oxide per mole of alcohol
  • the surfactant system can comprise anionic surfactant at a level of from 1.4% to 52%, preferably from 4.4% to 20%, more preferably from 5.9% to 11.5% of the liquid laundry detergent composition.
  • the surfactant system can further comprise an anionic surfactant, preferably selected from the group consisting of: sulphonate surfactant, sulphate surfactant, and mixtures thereof, more preferably wherein the anionic surfactant comprises sulphonate surfactant and sulphate surfactant.
  • Suitable anionic surfactants also include fatty acids and their salts, which are typically added as builders. However, by nature, every anionic surfactant known in the art of detergent compositions may be used, such as disclosed in “Surfactant Science Series”, Vol. 7, edited by W. M. Linfield, Marcel Dekker.
  • the composition preferably comprises at least a sulphonic acid surfactant, such as a linear alkyl benzene sulphonic acid, but water-soluble salt forms may also be used.
  • a sulphonic acid surfactant such as a linear alkyl benzene sulphonic acid
  • Alkyl sulphates, or mixtures thereof, are also preferred.
  • a combination of linear alkyl benzene sulphonate and alkyl sulphate surfactant is particularly preferred, especially for improving stain removal.
  • Anionic sulphonate or sulphonic acid surfactants suitable for use herein include the acid and salt forms of alkylbenzene sulphonates, alkyl ester sulphonates, alkane sulphonates, alkyl sulphonated polycarboxylic acids, and mixtures thereof.
  • Suitable anionic sulphonate or sulphonic acid surfactants include: C5-C20 alkylbenzene sulphonates, more preferably C10-C16 alkylbenzene sulphonates, more preferably C11-C13 alkylbenzene sulphonates, C5-C20 alkyl ester sulphonates, C6-C22 primary or secondary alkane sulphonates, C5-C20 sulphonated polycarboxylic acids, and any mixtures thereof, but preferably Cl 1-C13 alkylbenzene sulphonates.
  • the aforementioned surfactants can vary widely in their 2-phenyl isomer content.
  • Anionic sulphate salts suitable for use in the compositions of the invention include the primary and secondary alkyl sulphates, having a linear or branched alkyl or alkenyl moiety having from 9 to 22 carbon atoms or more preferably 12 tol8 carbon atoms. Also useful are beta-branched alkyl sulphate surfactants or mixtures of commercially available materials, having a weight average (of the surfactant or the mixture) branching degree of at least 50%.
  • Mid-chain branched alkyl sulphates or sulphonates are also suitable anionic surfactants for use in the compositions of the invention.
  • Preferred are the C5-C22, preferably C10-C20 mid-chain branched alkyl primary sulphates.
  • a suitable average total number of carbon atoms for the alkyl moieties is preferably within the range of from greater than 14.5 to 17.5.
  • Preferred mono-methyl -branched primary alkyl sulphates are selected from the group consisting of the 3 -methyl to 13 -methyl pentadecanol sulphates, the corresponding hexadecanol sulphates, and mixtures thereof. Dimethyl derivatives or other biodegradable alkyl sulphates having light branching can similarly be used.
  • the alkyl alkoxylated sulphate surfactant can be a blend of one or more alkyl ethoxylated sulphates. Suitable alkyl alkoxylated sulphates include C10-C18 alkyl ethoxylated sulphates, more preferably C12-C15 alkyl ethoxylated sulphates.
  • the anionic surfactant can comprise alkyl sulphate surfactant, wherein the alkyl sulphate surfactant has an average degree of ethoxylation of from 0.5 to 8.0, preferably from 1.0 to 5.0, more preferably from 2.0 to 3.5.
  • the anionic surfactant can comprise alkyl sulphate surfactant, wherein the alkyl sulphate surfactant has a low degree of ethoxylation, having an average degree of ethoxylation of less than 0.5, preferably less than 0.1, and more preferably is free of ethoxylation.
  • Preferred low ethoxylation alkyl sulphate surfactants do not comprise any further alkoxylation.
  • Preferred low ethoxylation alkyl sulphate surfactants comprise branched alkyl sulphate surfactant.
  • the branched alkyl sulphate surfactant can comprise at least 20%, preferably from 60% to 100%, more preferably from 80% to 90% by weight of the alkyl chains of the branched alkyl sulphate surfactant of 2-branched alkyl chains.
  • Such branched alkyl sulphates with 2-branched alkyl chains can also be described as 2-alkyl alkanol sulphates, or 2-alkyl alkyl sulphates.
  • the branched alkyl sulphates can be neutralized by sodium, potassium, magnesium, lithium, calcium, ammonium, or any suitable amines, such as, but not limited to monoethanolamine, triethanolamine and monoisopropanolamine, or by mixtures of any of the neutralizing metals or amines.
  • Suitable branched alkyl sulphate surfactants can comprise alkyl chains comprising from 10 to 18 carbon atoms (CIO to Cl 8) or from 12 to 15 carbon atoms (Cl 2 to Cl 5), with 13 to 15 carbon atoms (Cl 3 to Cl 5) being most preferred.
  • the branched alkyl sulphate surfactant can be produced using processes which comprise a hydroformylation reaction in order to provide the desired levels of 2- branching.
  • Particularly preferred branched alkyl sulphate surfactants comprise 2-branching, wherein the 2-branching comprises from 20% to 80%, preferably from 30% to 65%, more preferably from 40% to 50% by weight of the 2-branching of methyl branching, ethyl branching, and mixtures thereof.
  • Suitable low ethoxylated branched alkyl sulphate surfactants can be derived from alkyl alcohols such as Lial ® 145, Isalchem ® 145, both supplied by Sasol, optionally blending with other alkyl alcohols in order to achieve the desired branching distributions.
  • compositions of the present invention comprising such low ethoxylated alkyl sulphate surfactants, especially when the low ethoxylated alkyl sulphate surfactants comprise the 2-branching as described above.
  • alkyl ether sulphate anionic surfactants may result in trace residual amounts of 1,4-dioxane by-product being present.
  • the amount of 1,4-dioxane by-product within alkoxylated especially ethoxylated alkyl sulphates can be reduced. Based on recent advances in technology, a further reduction of 1,4-dioxane by-product can be achieved by subsequent stripping, distillation, evaporation, centrifugation, microwave irradiation, molecular sieving or catalytic or enzymatic degradation steps.
  • An alternative is to use alkyl sulphate anionic surfactants which comprise only low levels of ethoxylation, or even being free of ethoxylation. As such, the alkyl sulphate surfactant can have a degree of ethoxylation of less than 1.0, or less than 0.5, or even be free of ethoxylation.
  • anionic surfactants for use herein include fatty methyl ester sulphonates and/or alkyl polyalkoxylated carboxylates, for example, alkyl ethoxylated carboxylates (AEC).
  • AEC alkyl ethoxylated carboxylates
  • anionic surfactants are typically present in the form of their salts with alkanolamines or alkali metals such as sodium and potassium.
  • the liquid detergent composition can comprise a combination of linear alkyl benzene sulphonate surfactant and alkyl sulphate surfactant, preferably such that the ratio of linear alkyl benzene sulphonate surfactant to alkyl alkoxylated sulphate surfactant is from 15:1 to 0.1:1 , preferably from 10:1 to 0.3:1 , more preferably from 5:1 to 1:1.
  • the surfactant system can comprise amphoteric and/or zwitterionic surfactant at a level of from 0.1% to 2.0%, preferably from 0.1% to 1.0%, more preferably from 0.1% to 0.5% by weight of the liquid laundry detergent composition.
  • Suitable amphoteric surfactants include amine oxide surfactants.
  • Amine oxide surfactants are amine oxides having the following formula : R ⁇ R ⁇ NO wherein R ] is an hydrocarbon chain comprising from 1 to 30 carbon atoms, preferably from 6 to 20, more preferably from 8 to 16 and wherein R 2 and R 3 are independently saturated or unsaturated, substituted or unsubstituted, linear or branched hydrocarbon chains comprising from 1 to 4 carbon atoms, preferably from 1 to 3 carbon atoms, and more preferably are methyl groups.
  • R ] may be a saturated or unsaturated, substituted or unsubstituted linear or branched hydrocarbon chain.
  • Suitable amine oxides for use herein are for instance preferably C 12 -C 14 dimethyl amine oxide (lauryl dimethylamine oxide), commercially available from Albright & Wilson, C 12 -C 14 amine oxides commercially available under the trade name Genaminox® LA from Clariant or AROMOX® DMC from AKZO Nobel.
  • Suitable amphoteric or zwitterionic detersive surfactants include those which are known for use in hair care or other personal care cleansing. Non-limiting examples of suitable zwitterionic or amphoteric surfactants are described in U.S. Pat. Nos. 5,104,646, 5,106,609. Suitable amphoteric detersive surfactants include those surfactants broadly described as derivatives of aliphatic secondary and tertiary amines in which the aliphatic radical can be straight or branched chain and wherein one of the aliphatic substituents contains from 8 to 18 carbon atoms and one contains an anionic group such as carboxy, sulphonate, sulphate, phosphate, or phosphonate.
  • Suitable amphoteric detersive surfactants for use in the present invention include, but are not limited to: cocoamphoacetate, cocoamphodi acetate, lauroamphoacetate, lauroamphodi acetate, and mixtures thereof.
  • the detergent composition may additionally comprise one or more of the following optional ingredients: external structurant or thickener, enzymes, enzyme stabilizers, cleaning polymers, bleaching systems, optical brighteners, hueing dyes, particulate material, perfume and other odour control agents, hydrotropes, suds suppressors, fabric care benefit agents, pH adjusting agents, dye transfer inhibiting agents, dye fixative polymers, preservatives, non-fabric substantive dyes and mixtures thereof.
  • the laundry detergent composition does not comprise a bleach.
  • External structurant or thickener Preferred external structurants and thickeners are those that do not rely on charge - charge interactions for providing a structuring benefit.
  • particularly preferred external structurants are uncharged external structurants, such as those selected from the group consisting of: non-polymeric crystalline, hydroxyl functional structurants, such as hydrogenated castor oil; microfibrillated cellulose; uncharged hydroxyethyl cellulose; uncharged hydrophobically modified hydroxyethyl cellulose; hydrophobically modified ethoxylated urethanes; hydrophobically modified non-ionic polyols; and mixtures thereof.
  • Suitable polymeric structurants include naturally derived and/or synthetic polymeric structurants.
  • Examples of naturally derived polymeric structurants of use in the present invention include: microfibrillated cellulose, hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, carboxymethyl cellulose, polysaccharide derivatives and mixtures thereof.
  • microfibrillated cellulose are described in WO 2009/101545 Al.
  • Suitable polysaccharide derivatives include: pectine, alginate, arabinogalactan (gum Arabic), carrageenan, gellan gum, xanthan gum, guar gum and mixtures thereof.
  • Examples of synthetic polymeric structurants or thickeners of use in the present invention include: polycarboxylates, hydrophobically modified ethoxylated urethanes (HEUr), hydrophobically modified non-ionic polyols and mixtures thereof.
  • HEUr hydrophobically modified ethoxylated urethanes
  • the aqueous liquid detergent composition has a viscosity of 50 to 5,000, preferably 75 to 1,000, more preferably 100 to 500 mPa.s, when measured at a shear rate of 100 s- 1, at a temperature of 20°C.
  • the aqueous liquid detergent composition has a viscosity of 50 to 250,000, preferably 5,000 to 125,000, more preferably 10,000 to 35,000 mPa.s, when measured at a shear rate of 0.05 s-1, at a temperature of 20°C.
  • the detergent composition preferably comprises a cleaning polymer.
  • cleaning polymers are believed to at least partially lift the stain from the textile fibres and enable the enzyme system to more effectively break up the complexes comprising mannan and other polysaccharide.
  • Suitable cleaning polymers provide for broad-range soil cleaning of surfaces and fabrics and/or suspension of the soils.
  • suitable cleaning polymers include: amphiphilic alkoxylated grease cleaning polymers; clay soil cleaning polymers; soil release polymers; and soil suspending polymers.
  • a preferred cleaning polymer is obtainable by free-radical copolymerization of at least one compound of formula (I), in which n is equal to or greater than 3 for a number, with at least one compound of formula (II), in which A represents an anion, in particular selected from halides such as fluoride, chloride, bromide, iodide, sulphate, hydrogen sulphate, alkyl sulphate such as methyl sulphate, and mixtures thereof.
  • halides such as fluoride, chloride, bromide, iodide, sulphate, hydrogen sulphate, alkyl sulphate such as methyl sulphate, and mixtures thereof.
  • polyester based soil release polymers such as SRA300, supplied by Clariant are also particularly preferred.
  • the detergent composition may comprise amphiphilic alkoxylated grease cleaning polymers, which may have balanced hydrophilic and hydrophobic properties such that they remove grease particles from fabrics and surfaces.
  • the amphiphilic alkoxylated grease cleaning polymers may comprise a core structure and a plurality of alkoxylate groups attached to that core structure. These may comprise alkoxylated polyalkyleneimines, for example. Such compounds may comprise, but are not limited to, ethoxylated polyethyleneimine, ethoxylated hexamethylene diamine, and sulphated versions thereof. Polypropoxylated derivatives may also be included.
  • a wide variety of amines and polyalklyeneimines can be alkoxylated to various degrees.
  • a useful example is 600g/mol polyethyleneimine core ethoxylated to 20 EO groups per NH and is available from BASF.
  • the alkoxylated polyalkyleneimines may have an inner polyethylene oxide block and an outer polypropylene oxide block.
  • the detergent compositions may comprise from 0.1% to 10%, preferably, from 0.1% to 8.0%, more preferably from 0.1% to 2.0%, by weight of the detergent composition, of the cleaning polymer.
  • the detergent composition can comprise one or more dye transfer inhibiting polymer. However, preferred compositions do not comprise such dye transfer inhibiting polymers. It has been found that during laundering, many fabric-dyes partition between the fabric and wash-liquor. As such, the sequestering of dyes in the wash liquor using DTI polymers has been found to increase dye removal from fabrics, and hence increase dye-fading.
  • suitable dye transfer inhibiting can be selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP/PVI), polyvinyl pyridine-N-oxide, poly-N-carboxymethyl-4- vinylpyridiumchloride, poly(2-hydroxypropyldimethylammonium chloride), and mixtures thereof, preferably polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP/PVI), and mixtures thereof.
  • the dye transfer inhibitor can be present at a level of from 0.05% to 5%, or from 0.1% to 3%, and or from 0.2% to 2.5%, by weight of the detergent composition.
  • Polyvinylpyrrolidone has an amphiphilic character with a highly polar amide group conferring hydrophilic and polar attracting properties, and also has apolar methylene and methane groups, in the backbone and/or the ring, conferring hydrophobic properties. The rings may also provide planar alignment with the aromatic rings, in the dye molecules.
  • PVP is readily soluble in aqueous and organic solvent systems. PVP is commercially available in either powder or aqueous solutions in several viscosity grades.
  • the compositions of the present invention preferably utilize a copolymer of N- vinylpyrrolidone and N-vinylimidazole (also abbreviated herein as "PVPVI").
  • copolymers of N-vinylpyrrolidone and N- vinylimidazole can provide excellent dye transfer inhibiting performance.
  • the copolymers of N- vinylpyrrolidone and N-vinylimidazole can have a molar ratio of N-vinylimidazole to N- vinylpyrrolidone from 1 : 1 to 0.2:1, more preferably from 0.8:1 to 0.3:1, most preferably from 0.6: 1 to 0.4:1.
  • the copolymer of N-vinylpyrrolidone and N-vinylimidazole can be either linear or branched.
  • Particularly suitable polyvinylpyrrolidones can have a weight average molecular weight of from 5,000 Da to 1,000, 000 Da, preferably from 5,000 Da to 50,000 Da, more preferably from 10,000 Da to 20,000 Da.
  • the number average molecular weight range is determined by light scattering as described in Barth J. H. G. and Mays J. W. Chemical Analysis Vol 1 13.
  • Copolymers of poly (N-vinyl-2- pyrollidone) and poly (N-vinyl-imidazole) are commercially available from a number of sources including BASF.
  • a preferred DTI is commercially available under the tradename Sokalan® HP 56 K from BASF (BASF SE, Germany).
  • Organic builder and/or chelant The laundry detergent composition can comprise from 0.6% to 10%, preferably from 2 to 7% by weight of one or more organic builder and/or chelants.
  • Suitable organic builders and/or chelants are selected from the group consisting of: MEA citrate, citric acid, aminoalkylenepoly(alkylene phosphonates), alkali metal ethane 1 -hydroxy disphosphonates, and nitrilotrimethylene, phosphonates, diethylene triamine penta (methylene phosphonic acid) (DTPMP), ethylene diamine tetra(methylene phosphonic acid) (EDTMP), hexamethylene diamine tetra(methylene phosphonic acid), hydroxy- ethylene 1,1 diphosphonic acid (HEDP), hydroxyethane dimethylene phosphonic acid, ethylene di-amine di-succinic acid (EDDS), ethylene diamine tetraacetic acid (EDTA), hydroxyethylethylenediamine triacetate (HED
  • Enzymes provide cleaning performance and/or fabric care benefits.
  • suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, B-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and known amylases, or combinations thereof.
  • a preferred enzyme combination comprises a cocktail of conventional detersive enzymes such as protease, lipase, cutinase and/or cellulase in conjunction with amylase.
  • detersive enzymes are described in greater detail in U.S. Patent No. 6,579,839.
  • Enzyme stabiliser Enzymes can be stabilized using any known stabilizer system such as calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylate
  • esters diakyl glycol ethers, alcohols or alcohol alkoxylates], alkyl ether carboxylate in addition to a calcium ion source, benzamidine hypochlorite, lower aliphatic alcohols and carboxylic acids, N,N-bis(carboxymethyl) serine salts; (meth)acrylic acid-(meth)acrylic acid ester copolymer and PEG; lignin compound, polyamide oligomer, glycolic acid or its salts; poly hexa methylene bi guanide or N,N-bis-3-amino-propyl- dodecyl amine or salt; and mixtures thereof.
  • the detergent composition may comprise fabric hueing agent (sometimes referred to as shading, bluing, or whitening agents).
  • hueing agent provides a blue or violet shade to fabric.
  • Hueing agents can be used either alone or in combination to create a specific shade of hueing and/or to shade different fabric types. This may be provided for example by mixing a red and green-blue dye to yield a blue or violet shade.
  • Hueing agents may be selected from any known chemical class of dye, including but not limited to acridine, anthraquinone (including polycyclic quinones), azine, azo (e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo), including premetallized azo, benzodifurane and benzodifuranone, carotenoid, coumarin, cyanine, diazahemicyanine, diphenylmethane, formazan, hemicyanine, indigoids, methane, naphthalimides, naphthoquinone, nitro and nitroso, oxazine, phthalocyanine, pyrazoles, stilbene, styryl, triarylmethane, triphenylmethane, xanthenes and combinations thereof.
  • acridine e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo
  • the detergent composition may comprise, based on the total detergent composition weight, from 0.005% to 2.0%, preferably 0.01% to 0.1% of a fluorescent agent (optical brightener).
  • fluorescent agents are well known and many fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • Preferred classes of fluorescent agent are: Di-styryl biphenyl compounds, e.g. Tinopal® CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal® DMS pure Xtra and Blankophor® HRH, and Pyrazoline compounds, e.g. Blankophor® SN.
  • Preferred fluorescers are: sodium 2-(4-styryl-3-sulphophenyl)-2H-napthol[l ,2-d]trazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1 ,3,5-triazin-2- yl)]amino ⁇ stilbene-2-2' disulphonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-l ,3,5-triazin- 2-yl)]annino ⁇ stilbene-2-2' disulphonate, and disodium 4,4'-bis(2-sulphoslyryl)biphenyl.
  • the detergent composition may comprise, based on the total detergent composition weight, from 0 to 30%, preferably from 0.5 to 5%, more preferably from 1.0 to 3.0%, which can prevent liquid crystal formation.
  • the addition of the hydrotrope thus aids the clarity/transparency of the composition.
  • Suitable hydrotropes comprise but are not limited to urea, salts of benzene sulphonate, toluene sulphonate, xylene sulphonate or cumene sulphonate.
  • the hydrotrope is selected from the group consisting of propylene glycol, xylene sulphonate, ethanol, and urea to provide optimum performance.
  • the composition can also comprise particles, especially when the composition further comprises a structurant or thickener.
  • the composition may comprise, based on the total composition weight, from 0.02% to 10%, preferably from 0.1% to 4.0%, more preferably from 0.25% to 2.5% of particles.
  • Said particles include beads, pearlescent agents, capsules, and mixtures thereof.
  • Suitable capsules are typically formed by at least partially, preferably fully, surrounding a benefit agent with a wall material.
  • the capsule is a perfume capsule, wherein said benefit agent comprises one or more perfume raw materials.
  • the capsule wall material may comprise: melamine, polyacrylamide, silicones, silica, polystyrene, polyurea, polyurethanes, polyacrylate based materials, polyacrylate esters based materials, gelatin, styrene malic anhydride, polyamides, aromatic alcohols, polyvinyl alcohol, resorcinol-based materials, poly-isocyanate- based materials, acetals (such as 1,3,5-triol-benzene-gluteraldehyde and 1,3,5-triol-benzene melamine), starch, cellulose acetate phthalate and mixtures thereof.
  • the capsule wall comprises melamine and/or a polyacrylate based material.
  • the perfume capsule may be coated with a deposition aid, a cationic polymer, a non-ionic polymer, an anionic polymer, or mixtures thereof.
  • the perfume capsules have a volume weighted mean particle size from 0.1 microns to 100 microns, preferably from 0.5 microns to 60 microns.
  • the composition can additionally comprise one or more formaldehyde scavengers.
  • the laundry detergent compositions can be made using any suitable process known to the skilled person.
  • the ingredients are blended together in any suitable order.
  • the detersive surfactants are added as part of a concentrated premix, to which are added the other optional ingredients.
  • the solvent is added either last, or if an external structurant is added, immediately before the external structurant, with the external structurant being added as the last ingredient.
  • the laundry detergent compositions of the present invention can be used to launder fabrics.
  • the laundry detergent composition comprising the branched nonionic surfactant can be used for improving the color protection, preferably color retention, of colored fabrics during laundering.
  • the laundry detergent compositions of the present invention are particularly useful for preventing the removal of fabric-dyes selected from the group consisting of: reactive dyes, disperse dyes, and mixtures thereof, preferably wherein the fabric dyes are selected from the group consisting of: disperse dyes, reactive dyes, and mixtures thereof, from fabrics during the laundering process.
  • compositions of the present invention are particularly effective for reducing the removal of dyes from fabrics comprising cotton, especially cotton-comprising fabrics having dyes selected from the group consisting of: reactive dyes, disperse dyes, direct dyes, vat dyes, and mixtures thereof; preferably wherein the reactive dyes are selected from the group consisting of: the reactive dyes are selected from the group consisting of: reactive black 5, reactive red 239, reactive red 195, the direct dyes are selected from the group consisting of: direct black 22, direct red 83, and the vat dyes are selected from the group consisting of: indigo (vat blue 1), sulphur black 1, and mixtures thereof.
  • compositions of the present invention are particularly useful for reducing the removal of dyes from cotton-comprising fabrics having dyes selected from the group consisting of: reactive dyes, especially reactive dyes selected from the group consisting of: reactive black 5 , reactive red 239, and mixtures thereof.
  • compositions of the present invention are also effective for reducing the removal of dyes from fabrics comprising polyester, especially polyester-comprising fabrics comprising disperse dyes selected from the group consisting of: disperse orange 30, disperse red 167, disperse blue 79, disperse red 60, and mixtures thereof, preferably disperse blue 79.
  • the laundry detergent composition can be diluted to provide a wash liquor having a total surfactant concentration of greater than 300 ppm, preferably from 400 ppm to 2,500 ppm, more preferably from 600 ppm to 1000 ppm.
  • the fabric is then washed in the wash liquor, and preferably rinsed.
  • the pH is measured, at 25°C, using a Santarius PT-10P pH meter with gel-filled probe (such as the Toledo probe, part number 52 000 100), calibrated according to the instruction manual.
  • the pH is measured in a 10% dilution in demineralised water (i.e. 1 part laundry detergent composition and 9 parts demineralised water).
  • the viscosity is measured using an AR 2000 rheometer from TA instruments using a cone and plate geometry with a 40 mm diameter and an angle of 1°.
  • the viscosity at the different shear rates is measured via a logarithmic shear rate sweep from 0.1 s 1 to 1200 s 1 in 3 minutes time at 20°C.
  • Low shear viscosity is measured at a continuous shear rate of 0.05 s 1 .
  • the colored fabric samples as described below were cut into pieces of mg (weighted using an analytical balance). These pieces had an area of circa 2.5x2.5 cm (depending on the fabric used). If needed, additional pieces of the same fabric were added to reach the target weight.
  • the vials were continually shaken (using the medium speed setting) at temperature of 40 °C for 60 minutes.
  • the dye desorption was quantified as follows:
  • Triton X-100 2-[4-(2,4,4- trimethylpentan-2-yl)phenoxy]ethanol
  • a calibration curve of each dye used was obtained using the following procedure:
  • HLAS linear C10-C13 alkylbenzene sulphonic acid
  • AE3.0S linear C12-C15 alkyl ethoxy (3.0) sulphate
  • AE3.0S linear C12-C14 E07
  • CaCCE equivalence CaCCE equivalence
  • compositions were prepared by simple mixing.
  • Table 3 Comparative laundry liquid compositions (examples A and B and inventive laundry liquid composition (example 1) 6 cationic polymer Merquat 281, molecular weight 450,000 Da, supplied by Lubrizol
  • Cotton fabrics pre-dyed with reactive red 239 (AISE 17, supplied by CFT) were cut into 6cm x 6cm pieces. If needed to avoid fraying of the fabric edges, a plastic edging was applied with heat to the fabric squares.
  • Tergotometer pots were filled with 4.3 grs of each example composition and water (hardness 2.67 mmol CaCCb equivalence (15 gpg)) added to form 1L of wash liquor. To each tergotometer pot was added the following fabric swatches:
  • the tergotometer pots were heated to a temperature of 60 °C and agitated at a rate of 300 rpm for 40 minutes. After the wash, the test fabrics and ballast were spun at a speed of lOOOrpm for 2 minutes before rinsing twice in water at a temperature of 20 °C and hardness 2.67 mmol CaC03 equivalence (15 gpg) for 5 minutes, with a spin step of 1000 rpm for 2 minutes after each rinse step. In a final step, the fabrics were them tumble-dried. The laundering cycles were repeated for a total of 5 cycles.
  • test swatches were analysed for colour change versus an unwashed reference fabric using a spectrophotometer (Konika Minolta CM-3610A) and the change in colour measured on the DE CMC scale. The results are given in table 4 below.
  • Each pot contained three pieces of each of the test fabrics (three internal replicates); each composition was added to two different pots (two external replicates), DE CMC readings were averaged for each treatment.
  • Table 5 further examples of compositions of the present invention.

Abstract

Le besoin d'une composition de détergent qui fournit un dégorgement de colorant réduit à partir des tissus, est satisfait par la formulation de la composition à l'aide d'une combinaison d'un tensioactif non ionique ramifié et d'un polymère cationique.
PCT/US2022/034639 2021-06-24 2022-06-23 Composition de détergent pour le soin des couleurs WO2022271897A1 (fr)

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CN202280007506.8A CN116438283A (zh) 2021-06-24 2022-06-23 颜色护理洗涤剂组合物
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