JP2023548360A - Color care detergent composition - Google Patents

Abstract

The need for detergent compositions that reduce dye bleed from fabrics is met by formulating compositions using a combination of branched nonionic surfactants and cationic polymers.

Description

A laundry detergent composition, particularly a liquid laundry detergent composition or unit dose article that provides improved care for colored fabrics.

Laundry detergent compositions are formulated to provide good cleaning to fabrics to keep white fabrics white and colored fabrics bright. Laundry detergent compositions are also typically formulated to remove stains and soils. However, in addition to removing stains, laundry detergent compositions are known to also remove dyes from colored fabrics, resulting in fading of colored fabrics. Additionally, dyes can deposit on other fabrics that are washed in the same cycle, resulting in discoloration of co-washed fabrics.

To limit dye transfer to co-washed fabrics, dye transfer inhibition (DTI) polymers are often incorporated into detergent compositions commercially available for cleaning colored fabrics. Typical dye transfer inhibitors typically include polymers such as polyvinylpyrrolidone homopolymer (PVP), polyvinylpyrrolidone/polyvinylimidazole copolymer (PVP/PVI), and poly-4-vinylpyridine N-oxide (PVNO). based on. However, while such DTI polymers reduce dye transfer to co-washed fabrics, they do not prevent dye bleed from the fabric resulting in dye fading.

Therefore, there remains a need for detergent compositions that reduce dye bleed from fabrics.

WO 2010025116 (A1) relates to stable color maintenance and/or restoration compositions comprising at least one cationic polymer and anionic surfactant, and methods for providing the same. WO 2013070560 (A1) relates to a surface treatment composition comprising certain cationic polymer(s), an anionic surfactant, one or more shielding salts and a hydrophobic disassociation agent, comprises at least 6% by weight cationic polymer, at least 6% by weight anionic surfactant, and at least 4% by weight shielding salt, and the weight ratio of anionic surfactant to cationic polymer is 0.5: 1 to 4:1, and the weight ratio of shielding salt to cationic polymer may be from 0.3:1 to 3:1. WO 01/72937 (A1) describes the use of laundry treatment compositions containing water-soluble or water-dispersible restructuring agents for deposition on the fabric during the treatment process during the laundering process of dyed fabrics. The present invention relates to a method for reducing dye loss in textiles, in which the material undergoes a chemical change during the treatment process that increases the material's affinity for textiles. WO 2014139577 (A1) discloses a first component comprising at least one nonionic surfactant and a second component comprising at least one percarbonate (bleach) and tetraacetylethylenediamine (TAED). A two-component color detergent composition for use at low temperatures, comprising or consisting of, and a method for preparing such a two-component color detergent composition and for washing laundry articles, especially colored laundry articles regarding their use for. International Publication No. 2017/044749 (A1) discloses (i) about 0.001% to about 50% by weight of polyacrylamidopropyltrimethylammonium chloride poly(APTAC), polydiallyldimethylammonium chloride poly(DADMAC), polyAPTAC (ii) from about 0.01% to about 50% by weight; % of at least one nonionic surfactant, (iii) optionally from about 0.001% to about 5% by weight of at least one enzyme, and (iv) optionally about 0.01% by weight. For laundry or cleaning compositions comprising from to about 25% by weight of at least one laundry or cleaning additive, the composition can exhibit color wash fastness or color retention.

International Publication No. 2010025116 (A1) International Publication No. 2013070560 (A1) International Publication No. 01/72937 (A1) International Publication No. 2014139577 (A1) International Publication 2017/044749 (A1)

The present invention is a laundry detergent composition comprising a surfactant system and a cationic polymer, wherein the surfactant system comprises a branched nonionic surfactant and the cationic polymer comprises poly(diallyldimethylammonium chloride). ), copolymers of diallyldimethylammonium chloride and acrylic acid, copolymers of acrylamide and methacrylamidepropyltrimethylammonium chloride, copolymers of acrylamide and diallyldimethylammonium chloride, copolymers of methacrylate and methacrylamidepropyltrimethylammonium chloride and acrylic acid, Copolymer of acrylamide and methacrylamide propyltrimethylammonium chloride and acrylic acid, copolymer of acrylamide and diallyldimethylammonium chloride and acrylic acid, copolymer of acrylamide and N,N,N-trimethylaminoethyl acrylate, diallyldimethylammonium chloride and vinyl selected from copolymers of alcohols, and mixtures thereof, the cationic polymer having a molecular weight of 1,000 Da to 1,250,000 Da, and the branched nonionic surfactant having the formula I: R1-CH(R2)-O- (PO) _x (EO) _y (PO) _z -H, in formula I, R1 is a C4-C14 alkyl chain, preferably C4-C8, more preferably C6, and R2 is a C1-C7 alkyl chain, preferably C1 to C5, more preferably C3 alkyl chain, x is 0 to 10, preferably 0 to 5, more preferably 0 to 3, and y is 5 to 20, preferably 6 to 15, more preferably 7 -12, z is 0-20, preferably 0-5, more preferably 0-3, EO represents ethoxylation and PO represents propoxylation, formula II: R1-CH(R2) CH ₂ -O-(PO) _x (EO) _y (PO) _z -H, in formula II, R1 is a C3-C13 alkyl chain, preferably C3-C7, more preferably C5, and R2 is C1-C7 an alkyl chain, preferably a C1-C5, more preferably a C3 alkyl chain, x is 0-10, preferably 0-5, more preferably 0-3, and y is 5-20, preferably 6-15 , more preferably 7 to 12, z is 0 to 20, preferably 0 to 5, more preferably 0 to 3, EO represents ethoxylation, PO represents propoxylation, and mixtures thereof. selected.

The invention further relates to the use of laundry detergent compositions containing branched nonionic surfactants to improve the color protection, preferably color retention, of colored fabrics during laundering.

The detergent compositions of the present invention have been found to reduce dye fading during laundering.

Unless otherwise noted, all component or composition levels refer to the active portion of that component or composition and do not include impurities that may be present in commercial sources of such component or composition. For example, residual solvents or by-products are excluded.

All percentages and ratios are calculated on a weight basis unless otherwise indicated. All percentages and ratios are calculated based on total composition unless otherwise indicated.

All measurements are performed at 25°C unless otherwise specified.

As used herein, articles such as "a" and "an" when used in a claim refer to one or more of what is claimed or described. It is understood that

Laundry detergent composition:
The laundry detergent composition may be in any suitable form, such as liquid, paste, granule, solid, powder, etc., or may be combined with a carrier such as a substrate. Preferred laundry detergent compositions are either liquid or granular, with liquid being most preferred.

As used herein, "liquid detergent composition" refers to a liquid detergent composition that is fluid, preferably capable of wetting and cleaning fabrics, such as clothes, in a domestic washing machine. As used herein, "laundry detergent composition" refers to a composition suitable for cleaning clothing. The composition may contain solids or gases in suitably subdivided form, but the entire composition excludes product forms that are entirely non-liquid, such as tablets or granules. Liquid laundry detergent compositions exclude any solid additives, but include any foam, if present, preferably from 0.9 to 1.3 grams per cubic centimeter, more specifically: It has a density ranging from 1.00 to 1.10 grams per cubic centimeter.

The composition can be an aqueous liquid laundry detergent composition. In such aqueous liquid laundry detergent compositions, the water content ranges from 5.0% to 95%, preferably from 25% to 90%, more preferably from 50% to 85%, by weight of the liquid detergent composition. can exist at the level of

The pH range of the detergent composition is 6.0-8.9, preferably 7-8.8.

Detergent compositions can also be encapsulated in water-soluble films to form unit dose articles. Such unit dose articles comprise a detergent composition of the invention, wherein the detergent composition comprises less than 20%, preferably less than 15%, more preferably less than 10%, by weight of water; Encapsulated in a water-soluble or water-dispersible film. Such unit dose articles can be formed using any means known in the art. A suitable unit dose article can include one compartment, which compartment contains the liquid laundry detergent composition. Alternatively, the unit dose article can be a multi-compartment unit dose article in which at least one compartment includes a liquid laundry detergent composition.

Cationic polymers Cationic polymers include poly(diallyldimethylammonium chloride) (polyquaternium 6), copolymers of diallyldimethylammonium chloride and acrylic acid (e.g. polyquaternium 22), copolymers of acrylamide and methacrylamide propyltrimethylammonium chloride, acrylamide. and diallyldimethylammonium chloride (Polyquaternium 7), a copolymer of methacrylate, methacrylamide propyltrimethylammonium chloride, and acrylic acid (Polyquaternium 47), a copolymer of acrylamide, methacrylamidepropyltrimethylammonium chloride, and acrylic acid (Polyquaternium 53) , a copolymer of acrylamide and diallyldimethylammonium chloride and acrylic acid (polyquaternium 39), a copolymer of acrylamide and N,N,N-trimethylaminoethyl acrylate, a copolymer of diallyldimethylammonium chloride and vinyl alcohol, and mixtures thereof. Preferably, the cationic polymer is selected from the group: poly(diallyldimethylammonium chloride) (e.g. polyquaternium 6), a copolymer of diallyldimethylammonium chloride and acrylic acid (e.g. polyquaternium 22), methacrylate and methacrylamide propyl trimethyl selected from copolymers of ammonium chloride and acrylic acid (e.g. polyquaternium 47), and mixtures thereof, more preferably the cationic polymer is a copolymer of diallyldimethylammonium chloride and acrylic acid (e.g. polyquaternium 22) .

For copolymers of diallyldimethylammonium chloride and acrylic acid, the preferred ratio of diallyldimethylammonium chloride to acrylic acid is about 90:10 to 50:50. A preferred cationic polymer is a copolymer of diallyldimethylammonium chloride and acrylic acid in a 65/35 molar ratio having a molecular weight of about 450,000. The copolymer of diallyldimethylammonium chloride and acrylic acid may be further described by the International Nomenclature for Cosmetic Ingredients nomenclature polyquaternium-22 or PQ22. Copolymers of acrylamide and diallyldimethylammonium chloride may be further described by the nomenclature Polyquaternium-7 or PQ7, named under the International Nomenclature of Cosmetic Ingredients.

Table 1 below includes cationic charge densities and monomer molecular weights for selected cationic polymers.

The cationic polymer is present at a concentration of 0.1% to 10%, preferably 0.5% to 5.0%, more preferably 1.0% to 2.5% by weight of the total composition. can exist.

The cationic polymer has a molecular weight of 1,000 Da to 1,250,000 Da, preferably 100,000 Da to 1,000,000 Da, more preferably 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, calculated at pH 7. Without wishing to be bound by theory, the molecular weight of the cationic polymer, the charge density, and the presence of hydrophobic units within the polymer structure influence the ability of the shielding salt to effectively prevent the formation of polymer-surfactant complexes. can have an impact on

Furthermore, the charge density may range from 0.05 to 25 meq/g when calculated at pH 7, or preferably less than 7.0 meq/g, more preferably 5.0 meq/g when calculated at pH 7. g, even more preferably less than 3.0 meq/g. As used herein, "charge density" refers to the net charge density of the polymer itself, which may be different from the monomer feedstock. Charge density can be calculated by dividing the net charge per repeat unit by the molecular weight of the repeat unit and then multiplying by 1000. Note that the positive charge can be located on the main chain of the cationic polymer and/or on the side chains of the cationic polymer. For cationic polymers with amine monomers, the charge density depends on the pH of the carrier, so the charge density for comparison with the present disclosure should be measured at pH 7.

Surfactant System The laundry composition may have a concentration of 2.5% to 60%, preferably 5.0% to 25%, most preferably 7.0% to 15%, by weight of the composition. A surfactant system may be included.

As used herein, a suitable surfactant refers to a surfactant or mixture of surfactants that provides cleaning, stain removal, or laundering benefits to soiled materials. The detersive surfactant can be selected from anionic surfactants, nonionic surfactants, zwitterionic surfactants, and combinations thereof.

Surfactant systems include branched nonionic surfactants. The surfactant system can further include a surfactant selected from the group consisting of anionic surfactants, zwitterionic surfactants, and mixtures thereof. Accordingly, the surfactant system may include a combination of an anionic surfactant and a nonionic surfactant, more preferably a combination of an anionic surfactant, a nonionic surfactant, and an amphoteric surfactant. I can do it.

Preferably, surfactants containing saturated alkyl chains are used.

Branched Nonionic Surfactant The surfactant system comprises from 0.1% to 12%, preferably from 0.5% to 10%, most preferably from 1.0% by weight of the composition. A branched nonionic surfactant can be included at a concentration of 3.0% by weight.

Suitable branched nonionic surfactants can be derived from primary or secondary alcohols. Branched nonionic surfactants are selected from:
a) Formula I: R1-CH(R2)-O-(PO) _x (EO) _y (PO) _z -H
In formula I, R1 is a C4-C14 alkyl chain, preferably a C4-C8 alkyl chain, more preferably a C6 alkyl chain, and R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably is a C3 alkyl chain, x is 0 to 10, preferably 0 to 5, more preferably 0 to 3, y is 5 to 20, preferably 6 to 15, more preferably 7 to 12, and z is from 0 to 20, preferably from 0 to 5, more preferably from 0 to 3, EO represents ethoxylation and PO represents propoxylation,
b) Formula II: R1-CH(R2)CH2 _- O-(PO) _x (E0) _y (PO) _z -H
In formula II, R1 is a C3-C13 alkyl chain, preferably a C3-C7 alkyl chain, more preferably a C5 alkyl chain, and R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably is a C3 alkyl chain, x is 0 to 10, preferably 0 to 5, more preferably 0 to 3, y is 5 to 20, preferably 6 to 15, more preferably 7 to 12, and z is from 0 to 20, preferably from 0 to 5, more preferably from 0 to 3, EO represents ethoxylation and PO represents propoxylation.

Preferred branched nonionic ethoxylates according to formula I are those available under the trade name Tergitol® 15-S, with a degree of alkoxylation of 3 to 40. For example, Tergitol® 15-S-20 with an average degree of alkoxylation of 20. Other suitable commercially available materials according to formula I are those available under the trade names Softanol® M and EP series.

Preferred branched nonionic surfactants according to formula II are Guerbet C10 alcohol ethoxylates with 7 or 8 EO, such as Ethylan® 1007 and 1008, and the commercially available Lutensol® XL series (XL50, XL70, etc.) ) Guerbet C10 alcohol alkoxylated nonionic surfactants (ethoxylated and/or propoxylated). Other representative alkoxylated branched nonionic surfactants include Lutensol® XP30, Lutensol® XP-50, and Lutensol® XP-80 available from BASF Corporation. Examples include those available under trade names. Generally, Lutensol® XP-30 can be considered to have three repeating ethoxy groups, Lutensol® XP-70 can be considered to have seven repeating ethoxy groups. Other suitable branched nonionic surfactants include oxo-branched nonionic surfactants such as Lutensol® ON50 (5EO) and Lutensol® ON70 (7EO). Other suitable branched nonionic surfactants include Plurafac® SLF170 (3PO, 12EO, 15PO). Also available are ethoxylations with up to 50% branching (40% methyl (mono- or bi), 10% cyclohexyl) and obtained by Fischer and Tropsch reactions, including those made from Sasol's Safol® alcohol. Also suitable are fatty alcohols, ethoxylated fatty alcohols derived from oxo reactions, where at least 50% by weight of the alcohol is prepared from Sasol's Isalchem® alcohol or Lial® alcohol. It is a C2 isomer (methyl to pentyl) such as.

Additional Non-Ionic Surfactants The liquid detergent composition may include additional non-ionic surfactants. The concentration of further nonionic surfactants in the liquid detergent composition is less than 15% by weight, preferably less than 7.0% by weight, more preferably less than 5.0% by weight, even more preferably less than 3.0% by weight. %. Most preferably, the composition does not contain additional nonionic surfactants.

Suitable nonionic surfactants include linear C12-C18 alkyl ethoxylates ("AE"), including so-called narrow peak alkyl ethoxylates, and C6-C12 alkylphenol alkoxylates (especially ethoxylates and ethoxy/propoxy mixtures). , blocked alkylene oxide condensates of C6-C12 alkylphenols, alkylene oxide condensates of C8-C22 alkanols, and ethylene oxide/propylene oxide block polymers (Pluronic, BASF Corp.), and Semipolar nonionic materials such as amine oxides and phosphine oxides can be used in the compositions of the invention. A comprehensive disclosure of these types of surfactants can be found in US Pat. No. 3,929,678.

Alkyl polysaccharides, such as those disclosed in US Pat. No. 4,565,647, are also useful nonionic surfactants in the compositions of the present invention.

Alkyl polyglucoside surfactants are also suitable.

Further nonionic surfactants include those of the formula R ₁ (OC ₂ H ₄ ) _n OH, where R ₁ is a linear C10-C16 alkyl group or a C8-C12 alkylphenyl group. , n is preferably 3 to 80. In some embodiments, the nonionic surfactant is a C12-C15 alcohol condensed with 5 to 20 moles of ethylene oxide per mole of alcohol and a linear C12-C15 alcohol, e.g., 6.5 moles of ethylene oxide per mole of alcohol. It can be a condensation product of C13 alcohols.

Anionic Surfactant This surfactant system comprises from 1.4% to 52%, preferably from 4.4% to 20%, more preferably from 5.9% to 11% by weight of the liquid laundry detergent composition. Anionic surfactants can be included at a concentration of .5% by weight.

The surfactant system may further include an anionic surfactant, preferably selected from the group consisting of sulfonate surfactants, sulfate surfactants, and mixtures thereof, more preferably an anionic surfactant. includes sulfonate surfactants and sulfate surfactants. Suitable anionic surfactants also include fatty acids and their salts, which are typically added as builders. However, W. M. Linfield, edited by Marcel Dekker, “Surfactant Science Series”, Vol. Essentially any anionic surfactant known in the detergent composition art can be used, such as those disclosed in US Pat. However, the composition preferably comprises at least a sulfonic acid surfactant, such as a linear alkylbenzene sulfonic acid, although water-soluble salt forms may also be used. Alkyl sulphates or mixtures thereof are also preferred. Combinations of linear alkylbenzene sulfonates and alkyl sulfate surfactants are particularly preferred, particularly for improved stain removal.

Anionic sulfonate or sulfonic acid surfactants suitable for use herein include alkylbenzene sulfonates, alkyl ester sulfonates, alkanesulfonates, acid and salt forms of alkylsulfonated polycarboxylic acids, and mixtures thereof. It will be done. Suitable anionic sulfonate or sulfonic acid surfactants include C5-C20 alkylbenzenesulfonates, more preferably C10-C16 alkylbenzenesulfonates, more preferably C11-C13 alkylbenzenesulfonates, C5-C20 alkyl ester sulfonates, C6-C22 primary or Secondary alkanesulfonates, C5 to C20 sulfonated (poly)carboxylic acids, and any mixtures thereof, preferably C11 to C13 alkylbenzene sulfonates. The surfactants may vary widely in their 2-phenyl isomer content.

Suitable anionic sulfate salts for use in the compositions of the invention include straight-chain or branched alkyl or alkenyl salts having from 9 to 22 carbon atoms or more preferably from 12 to 18 carbon atoms. Primary and secondary alkyl sulfates having moieties include primary and secondary alkyl sulfates. Also useful are β-branched alkyl sulfate surfactants, or mixtures of commercially available materials, in which the weight average degree of branching (of the surfactant or mixture) is at least 50%.

Medium chain branched alkyl sulfates or sulfonates are also suitable anionic surfactants for use in the compositions of the invention. Preferred are C5 to C22, preferably C10 to C20 medium chain branched alkyl primary sulfates. When a mixture is used, a suitable average total number of carbon atoms in the alkyl moiety is preferably in the range greater than 14.5 to 17.5. Preferred mono-methyl-branched primary alkyl sulfates are selected from the group consisting of 3-methyl to 13-methylpentadecanol sulfates, the corresponding hexadecanol sulfates, and mixtures thereof. Dimethyl derivatives or other biodegradable alkyl sulfates with mild branching can be used as well.

If used, the alkyl alkoxylated sulfate surfactant can be a blend of one or more alkyl ethoxylated sulfates. Suitable alkyl alkoxylated sulfates include C10-C18 alkyl ethoxylated sulfates, more preferably C12-C15 alkyl ethoxylated sulfates. The anionic surfactant can include an alkyl sulfate surfactant, where the alkyl sulfate surfactant is from 0.5 to 8.0, preferably from 1.0 to 5.0, more preferably from 2.0 to It has an average degree of ethoxylation of 3.5.

Alternatively, the anionic surfactant can include an alkyl sulfate surfactant, the alkyl sulfate surfactant having a low degree of ethoxylation with an average degree of ethoxylation of less than 0.5, preferably less than 0.1. more preferably not ethoxylated. Preferred lower ethoxylated alkyl sulfate surfactants do not contain additional alkoxylation. Preferred lower ethoxylated alkyl sulfate surfactants include branched alkyl sulfate surfactants. The branched alkyl sulfate surfactant contains at least 20%, preferably from 60% to 100%, more preferably from 80% to 90%, of the alkyl chains of the branched alkyl sulfate surfactant. can be included. Such branched alkyl sulfates having a bibranched alkyl chain can also be described as 2-alkylalkanol sulfates or 2-alkylalkyl sulfates. The branched alkyl sulfate can be neutralized by sodium, potassium, magnesium, lithium, calcium, ammonium, or any suitable amine, such as, but not limited to, monoethanolamine, triethanolamine, and monoisopropanolamine, or by neutralizing the metal. or a mixture of amines. Suitable branched alkyl sulfate surfactants can contain alkyl chains containing 10 to 18 carbon atoms (C10-C18) or 12 to 15 carbon atoms (C12-C15); Carbon atoms (C13-C15) are most preferred. Branched alkyl sulfate surfactants can be made using processes that involve hydroformylation reactions to provide the desired level of 2-branching. Particularly preferred branched alkyl sulfate surfactants contain 2-branches, where the 2-branches are 20% to 80%, preferably 30% to 65%, more preferably 40% to 50% methyl branch, ethyl branch, and 2-branch of mixtures thereof.

Suitable lower ethoxylated branched alkyl sulfate surfactants can be derived from alkyl alcohols, such as Lial® 145, Isalchem® 145, both supplied by Sasol, to achieve the desired branching distribution. Can be optionally blended with other alkyl alcohols to

When using compositions of the present invention comprising such lower ethoxylated alkyl sulfate surfactants to clean fabrics, especially when the lower ethoxylated alkyl sulfate surfactants contain 2-branches as described above, 30 When washing fabrics at temperatures below °C, lower levels of dye removal from the fabric during laundering can be achieved while maintaining cleaning performance.

However, the process of manufacturing such alkyl ether sulfate anionic surfactants may produce trace amounts of residual 1,4-dioxane byproduct. The amount of 1,4-dioxane byproduct in alkoxylated alkyl sulfates, especially ethoxylated alkyl sulfates, can be reduced. Based on recent technological advances, further reduction of the 1,4-dioxane byproduct can be achieved by subsequent stripping, distillation, solvent evaporation, centrifugation, microwave irradiation, molecular sieving, or catalytic decomposition steps or enzymatic decomposition processes. This can be achieved through processes. An alternative method is to use alkyl sulfate anionic surfactants that contain only low levels of ethoxylation or even no ethoxylation. Thus, the alkyl sulfate surfactant can have a degree of ethoxylation of less than 1.0, or less than 0.5, or may contain no ethoxylation.

Other anionic surfactants suitable for use herein include fatty methyl ester sulfonates and/or alkyl polyalkoxylated carboxylates, such as alkyl ethoxylated carboxylates (AECs).

Anionic surfactants are typically present in the form of alkanolamines or their salts with alkali metals such as sodium and potassium.

For improved stability and cleaning of fats and oils, the liquid detergent composition has a ratio of linear alkylbenzene sulfonate surfactant to alkyl alkoxylated sulfate surfactant of 15:1 to 0.1:1, preferably 10:1. Combinations of linear alkylbenzene sulfonate surfactants and alkyl alkoxylated sulfate surfactants can be included in the ratio from 1 to 0.3:1, more preferably from 5:1 to 1:1.

Ampholytic surfactants and/or zwitterionic surfactants This surfactant system comprises from 0.1% to 2.0%, preferably from 0.1% to 1.0% by weight of the liquid laundry detergent composition. Ampholytic surfactants and/or zwitterionic surfactants may be included at a concentration of % by weight, more preferably from 0.1% to 0.5% by weight.

Suitable amphoteric surfactants include amine oxide surfactants. Amine oxide surfactants have the following formula: R ₁ R ₂ R ₃ NO, where R ₁ contains 1 to 30, preferably 6 to 20, more preferably 8 to 16 carbon atoms. is a hydrocarbon chain, R ₂ and R ₃ are independently saturated or unsaturated, substituted or unsubstituted, linear or branched, containing 1 to 4 carbon atoms, preferably 1 to 3 carbon atoms. amine oxide having a hydrocarbon chain, more preferably a methyl group). R ₁ may be a saturated or unsaturated, substituted or unsubstituted, straight or branched hydrocarbon chain.

Suitable amine oxides for use herein are, for example, preferably C ₁₂ -C 14 dimethylamine oxide, commercially available from Albright & Wilson, C 12 -C ₁₄ dimethylamine oxide, commercially available from Clariant under the trade name Genaminox® LA. ₁₂ to C ₁₄ amine oxide, or AROMOX® DMC, commercially available from AKZO Nobel.

Suitable amphoteric or zwitterionic detersive surfactants include those known for use in hair care or other personal care cleansing. Non-limiting examples of suitable zwitterionic or amphoteric surfactants are described in US Pat. No. 5,104,646 and US Pat. No. 5,106,609. Suitable amphoteric detersive surfactants include surfactants widely described as derivatives of aliphatic secondary and tertiary amines, where the aliphatic radical may be linear or branched. Often one of the aliphatic substituents contains 8 to 18 carbon atoms and one carries an anionic group, such as a carboxy, sulfonic, sulfate, phosphate, or phosphonate group. contains. Amphoteric detersive surfactants suitable for use in the present invention include, but are not limited to, cocoamphoacetate, cocoamphodiacetate, lauroamphoacetate, lauroamphodiacetate, and mixtures thereof.

Optional Ingredients The detergent composition may further include one or more of the following optional ingredients: external structuring agents or thickeners, enzymes, enzyme stabilizers, cleaning polymers, bleaching systems, optical brighteners, Hue dyes, particulate matter, fragrances and other odor control agents, hydrotropes, foam suppressants, fabric care benefit agents, pH regulators, dye transfer inhibitors, dye-fixing polymers, preservatives, non-fabric direct dyes; blend. In a more preferred embodiment, the laundry detergent composition is bleach-free.

External structuring agents or thickening agents: Preferred external structuring agents and thickening agents are those that do not rely on charge-charge interactions to provide a structuring effect. Particularly preferred external structuring agents are therefore non-polymeric crystalline hydroxyl-functional structuring agents such as hydrogenated castor oil; microfibrous cellulose; uncharged hydroxyethylcellulose; uncharged hydrophobically modified hydroxyethylcellulose; hydrophobically modified ethoxylated An uncharged external structuring agent such as one selected from the group consisting of urethanes; hydrophobically modified nonionic polyols; and mixtures thereof.

Suitable polymeric structuring agents include naturally occurring and/or synthetic polymeric structuring agents.

Examples of naturally derived polymeric structuring agents for use in the present invention include microfibrillated cellulose, hydroxyethylcellulose, hydrophobically modified hydroxyethylcellulose, carboxymethylcellulose, polysaccharide derivatives, and mixtures thereof. Non-limiting examples of microfibrillated cellulose are described in WO 2009/101545 (A1). Suitable polysaccharide derivatives include pectin, alginate, arabinogalactan (gum arabic), carrageenan, gellan gum, xanthan gum, guar gum, and mixtures thereof.

Examples of synthetic polymeric structurants or thickeners for use in the present invention include polycarboxylates, hydrophobically modified ethoxylated urethanes (HEUr), hydrophobically modified nonionic polyols, and mixtures thereof.

Preferably, the aqueous liquid detergent composition has a shear rate of 50 to 5,000, preferably 75 to 1,000, more preferably 100 to 500 MPa, measured at a temperature of 20° C. and a shear rate of 100 s. It has a viscosity of s. For improved phase stability and also for stability of suspended components, the aqueous liquid detergent composition has a shear rate of 50 to 250,000, preferably 5,000 to 125,000, more preferably 10,000 to 35,000 MPa. It has a viscosity of s.

Cleaning polymer: The detergent composition preferably includes a cleaning polymer. Such cleaning polymers are believed to at least partially lift stains from textile fibers, allowing enzyme systems to more effectively degrade complexes containing mannan and other polysaccharides. Suitable cleaning polymers provide extensive soil cleaning and/or soil suspension of surfaces and fabrics. Non-limiting examples of suitable cleaning polymers include amphiphilic alkoxylated grease cleaning polymers, clay soil cleaning polymers, soil releasing polymers, and soil suspending polymers. Preferred cleaning polymers are at least one compound of formula (I)

(In the formula, n is a number of 3 or more) and
at least one compound of formula (II)

(wherein A ⁻ represents an anion, especially selected from halides such as fluoride, chloride, bromide, iodide, sulfates, hydrogen sulfates, alkyl sulfates such as methyl sulfate, and mixtures thereof) It can be obtained by free radical copolymerization with Such polymers are further described in EP 3 196 283 (A1).

For similar reasons, polyester-based soil release polymers such as SRA300 supplied by Clariant are also particularly preferred.

Other useful cleaning polymers are described in US Patent Application No. 20090124528 (A1). The detergent composition may include amphiphilic alkoxylated grease cleaning polymers that are balanced in hydrophilicity and hydrophobicity to remove grease particles from fabrics and surfaces. The amphiphilic alkoxylated fat cleaning polymer may include a core structure and a plurality of alkoxylate groups attached to the core structure. These may include, for example, alkoxylated polyalkyleneimines. Such compounds include, but are not limited to, ethoxylated polyethyleneimine, ethoxylated hexamethylene diamine, and sulfated forms thereof. Mention may also be made of polypropoxylated derivatives. A wide variety of amines and polyalkyleneimines can be alkoxylated to varying degrees. A useful example is a 600 g/mol polyethyleneimine core ethoxylated to 20 EO groups per NH, available from BASF. The alkoxylated polyalkylene imine may include an inner polyethylene oxide block and an outer polypropylene oxide block. The detergent composition comprises 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 a cleaning polymer. may include.

Migration-inhibiting polymers: The detergent composition can include one or more migration-inhibiting polymers. However, preferred compositions do not include such dye transfer inhibiting polymers. It has been found that during laundering, many fabric dyes are partitioned between the fabric and the wash solution. Thus, sequestration of dyes in wash solutions using DTI polymers has been found to increase dye removal from fabrics and thus increase dye fading.

When used, suitable transfer-inhibiting polymers include polyvinylpyrrolidone homopolymer (PVP), polyvinylimidazole (PVI), copolymer of polyvinylpyrrolidone and polyvinylimidazole (PVP/PVI), polyvinylpyridine-N-oxide, polyvinylpyridine-N-oxide, N-carboxylmethyl-4-vinylpyridium chloride, 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, if present, comprises 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. It can exist at levels.

Polyvinylpyrrolidone (“PVP”) is amphiphilic with highly polar amide groups that impart hydrophilic and polar attracting properties, and also polar methylene and methane groups in the backbone and/or rings that impart hydrophobic properties. have The ring may also provide a planar orientation with the aromatic ring in the dye molecule. PVP is easily soluble in aqueous and organic solvent systems. PVP is commercially available either as a powder or as an aqueous solution 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"). It has been found that a copolymer of N-vinylpyrrolidone and N-vinylimidazole can provide excellent dye transfer control performance. The copolymer of N-vinylpyrrolidone and N-vinylimidazole is preferably 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. It is possible to have a molar ratio of N-vinylimidazole to N-vinylpyrrolidone of 4:1. The copolymer of N-vinylpyrrolidone and N-vinylimidazole can be either linear or branched. Particularly suitable polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI) and copolymers of vinylpyrrolidone and vinylimidazole (PVP/PVI) have a molecular weight of 5,000 Da to 1,000,000 Da, preferably 5,000 Da to 50,000 Da. , more preferably a weight average molecular weight of 10,000 Da to 20,000 Da. Number average molecular weight ranges are as per Barth J. H. G. and Mays J. W. Chemical Analysis Vol 113. Determined by light scattering as described in "Modern Methods of Polymer Characterization". Copolymers of poly(N-vinyl-2-pyrrolidone) and poly(N-vinyl-imidazole) are commercially available from a number of sources including BASF. A preferred DTI is commercially available from BASF (BASF SE, Germany) under the trade name Sokalan® HP 56 K.

Organic builders and/or chelating agents: The laundry detergent compositions may contain from 0.6% to 10%, preferably from 2 to 7%, by weight of one or more organic builders and/or chelating agents. Suitable organic builders and/or chelating agents are MEA citrate, citric acid, aminoalkylene poly(alkylenephosphonate), alkali metal ethane 1-hydroxydisphosphonate, and nitrilotrimethylene, phosphonate, diethylenetriaminepenta(methylenephosphonic acid) (DTPMP). , ethylenediaminetetra (methylenephosphonic acid) (DTMP), hexamethylenediaminetetra (methylenephosphonic acid), hydroxy-ethylene 1,1 diphosphonic acid (HEDP), hydroxyethane dimethylenephosphonic acid, ethylenediamine disuccinic acid (EDDS), ethylenediamine Tetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), nitrilotriacetic acid (NTA), methylglycine diacetic acid (MGDA), iminodisuccinic acid (IDS), hydroxyethyliminodisuccinic acid (HIDS), hydroxyethyl selected from the group consisting of catechol sulfonates such as iminodiacetic acid (HEIDA), glycine diacetic acid (GLDA), diethylenetriaminepentaacetic acid (DTPA), Tiron™, and mixtures thereof.

Enzymes: Suitable enzymes provide cleaning performance and/or fabric care benefits. Examples of suitable enzymes include hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases ( malanases), Beta-glucanases, arabinosidases, hyaluronidases, chondroitinases, laccases, and known amylases, or combinations thereof. Preferred enzyme combinations include amylase as well as a cocktail of conventional detersive enzymes such as proteases, lipases, cutinases and/or cellulases. Detergent enzymes are described in more detail in US Pat. No. 6,579,839.

Enzyme stabilizers: Enzymes can be stabilized with calcium and/or magnesium compounds, boron compounds and substituted boronic acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [ For example, certain esters, diakyl glycol ethers, alcohols, or alcohol alkoxylates], alkyl ether carboxylates, benzamidine hypochlorites, lower aliphatic alcohols and carboxylic acids in addition to calcium ion sources, N,N-bis(carboxymethyl)serine salt; (meth)acrylic acid-(meth)acrylic acid ester copolymer and PEG; lignin compound, polyamide oligomer, glycolic acid or its salt; polyhexamethylene biguanide or N,N-bis Any known stabilizer system can be used for stabilization, such as -3-amino-propyl-dodecylamine or salt; as well as mixtures thereof.

Tinting agents: Detergent compositions may include fabric tinting agents (sometimes referred to as tinting agents, tinting agents, or whitening agents). Typically, tinting agents provide a blue or blue-purple tint to the fabric. Tinting agents can be used either alone or in combination to create shades of particular hues and/or to tint different types of fabrics. This can be brought about, for example, by mixing red and green-blue dyes to produce blue or violet shades. Tinting agents include acridine, anthraquinones (including polycyclic quinones), azines, azos including premetallized azos (e.g. monoazo, diazo, trisazo, tetrakisazo, polyazo), benzodifurans and benzodifuranones, carotenoids, Coumarin, cyanine, diazahemicyanine, diphenylmethane, formazan, hemicyanine, indigoid, methane, naphthalimide, naphthoquinone, nitro and nitroso, oxazine, phthalocyanine, pyrazole, stilbene, styryl, triarylmethane, triphenylmethane, xanthene, and these may be selected from any known chemical class of dyes, including, but not limited to, combinations of dyes.

Optical brightener: The detergent composition contains from 0.005% to 2.0%, preferably from 0.01% to 0.1% of fluorescent agent (optical brightener), based on the total weight of the detergent composition. may include. Fluorescent agents are well known, and many are commercially available. Typically, these fluorescent agents are supplied and used in the form of alkali metal salts, such as sodium salts. Preferred fluorescent agent types include distyrylbiphenyl compounds such as Tinopal® CBS-X, diaminostilbendisulfonic acid compounds such as Tinopal® DMS pure Xtra and Blankophor® HRH, and pyrazolines. Compounds such as Blankophor® SN. Preferred fluorescent agents are 2-(4-styryl-3-sulfophenyl)-2H-napthol[1,2-d]triazole sodium, 4,4'-bis{[(4-anilino-6-( N-methyl-N-2-hydroxyethyl)amino1,3,5-triazin-2-yl)]amino}stilbene-2-2' disulfonic acid disodium, 4,4'-bis{[(4-anilino- 6-morpholino-1,3,5-triazin-2-yl)]amino}stilbene-2-2'disulfonic acid disodium, and 4,4'-bis(2-sulfostyryl)biphenyl disodium.

Hydrotrope: The detergent composition may contain 0-30%, preferably 0.5-5%, more preferably 1.0-3.0% hydrotrope, based on the total weight of the detergent composition. , which can prevent liquid crystal formation. Therefore, the addition of hydrotropes aids in the clarity/transparency of the composition. Suitable hydrotropes include, but are not limited to, salts of urea, benzene sulfonate, toluene sulfonate, xylene sulfonate, or cumene sulfonate. Preferably, the hydrotrope is selected from the group consisting of propylene glycol, xylene sulfonate, ethanol, and urea to provide optimal performance.

Particles: The composition may also include particles, particularly when the composition further includes a structuring agent or thickening agent. The composition may contain 0.02% to 10% particles, preferably 0.1% to 4.0%, more preferably 0.25% to 2.5%, based on total weight. Such particles include beads, nacres, capsules, and mixtures thereof.

Suitable capsules are typically formed by at least partially, preferably completely surrounding the benefit agent with wall material. Preferably, the capsule is a perfume capsule and the benefit agent includes one or more perfume ingredients. Capsule wall materials include melamine, polyacrylamide, silicone, silica, polystyrene, polyurea, polyurethane, polyacrylate materials, polyacrylate ester materials, gelatin, styrene maleic anhydride, polyamide, aromatic alcohols, polyvinyl alcohol, resorcinol. materials, poly-isocyanate-based materials, acetals (such as 1,3,5-triol-benzene-glutaraldehyde and 1,3,5-triol-benzene melamine), starch, cellulose acetate phthalate, and mixtures thereof. obtain. Preferably, the capsule wall comprises melamine and/or polyacrylate based material. The perfume capsules may be coated with adhesion aids, cationic polymers, nonionic polymers, anionic polymers, or mixtures thereof. Preferably, the perfume capsules have a volume weighted average particle size of 0.1 micrometer to 100 micrometer, preferably 0.5 micrometer to 60 micrometer. In particular, when the composition comprises a capsule having a shell formed at least partially of formaldehyde, the composition may further comprise one or more formaldehyde scavengers.

Methods of Making Laundry Detergent Compositions Laundry detergent compositions can be made using any suitable process known to those skilled in the art. Typically, the ingredients are blended together in any suitable order. Preferably, the detersive surfactant is added as part of a concentrated premix to which other optional ingredients are added. Preferably, the solvent is added last or, if an external structuring agent is added, immediately before the external structuring agent, with the external structuring agent being added as the last component.

How to wash fabric:
The laundry detergent composition of the present invention can be used to launder fabrics. In particular, laundry detergent compositions containing branched nonionic surfactants can be used to improve 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 from fabrics during the laundering process, and are preferably , the fabric dye is selected from the group consisting of disperse dyes, reactive dyes, and mixtures thereof.

The compositions of the present invention reduce dye removal from cotton-containing fabrics, particularly those having dyes selected from the group consisting of reactive dyes, disperse dyes, direct dyes, vat dyes, and mixtures thereof. It is particularly effective for Preferably, the reactive dye is selected from the group consisting of Reactive Black 5, Reactive Red 239, Reactive Red 195, the direct dye is selected from the group consisting of Direct Black 22, Direct Red 83, and the vat dye is , Indigo (Bat Blue 1), Sulfur Black 1, and mixtures thereof. The composition of the present invention can be applied to cotton-containing fabrics having a reactive dye, particularly a dye selected from the group consisting of reactive dyes selected from the group consisting of Reactive Black 5, Reactive Red 239, and mixtures thereof. is particularly useful in reducing dye removal.

The compositions of the present invention are also suitable for fabrics comprising polyester, in particular 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. is effective in reducing dye removal from polyester-containing fabrics.

In such methods and uses, the laundry detergent composition can be diluted to provide a cleaning solution 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 a wash solution and preferably rinsed.

Method:
A) pH measurement:
pH is measured at 25° C. using a Santarius PT-10P pH meter with a gel-filled probe (eg Toledo probe, part number 52 000 100) calibrated according to the instructions for use. pH is measured at a 10% dilution in demineralized water (ie, 1 part laundry detergent composition and 9 parts demineralized water).

B) Viscosity measurement method:
Viscosity is measured using an AR2000 rheometer from TA instruments using a 40 mm diameter cone-plate geometry with a 1 degree angle. The viscosity at various shear rates is obtained from a log shear rate sweep from 0.1 s ⁻¹ to 1200 s ⁻¹ for 3 minutes at 20° C. Low shear viscosity is measured at a continuous shear rate of 0.05 s ⁻¹ .

Example:
The following methodology was used to evaluate the effect of branched and linear nonionic surfactants on dye bleed during laundering.

Glass vials (size 4 ml) were filled with 2 ml of the test detergent solution as described below and subsequently inserted into a thermoshaker (Echotherm® Orbital Shaker) set at a temperature of 40 °C. did. The solution was held at this temperature for 15 minutes to equilibrate the temperature.

A colored fabric sample as described below was cut into 150±1 mg pieces (weighed using an analytical balance). These pieces had an area of approximately 2.5 x 2.5 cm (depending on the fabric used). Additional pieces of the same fabric were added as needed to reach the target weight.

Before returning the vial to the thermoshaker, each fabric piece was folded and then inserted into the vial using a disposable glass rod so that the fabric was completely covered by the solution.

The vial was shaken continuously (using medium speed setting) for 60 minutes at a temperature of 40°C.

The vial was then removed from the thermoshaker and the fabric was removed from the test detergent solution. The solution was kept in the dark for the time necessary to reach room temperature (25°C).

Dye desorption was quantified as follows.
950 μl of each solution was placed in a semi-microplastic cuvette and their absorbance spectra were recorded using a UV-vis spectrophotometer (Cary UV-Vis Multicell Peltier, supplied by Agilent), measuring the absorbance from 300 nm to 900 nm. It was measured.

To each solution was added 50 μl of a 20 wt% aqueous solution of 2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethanol (Triton X-100, supplied by Sigma Aldrich) and The absorbance spectrum at 900 nm was measured again. Triton X-100 was added because, at the test concentrations used, it was observed that it strongly reduced the scattering of the surfactants tested in the region overlapping the dye absorption spectra.

Calibration curves for each dye used were obtained using the following procedure.
First, the following standard detergent solution was prepared.
Equal parts by weight of linear C10 _{- C13} alkylbenzene sulfonic acid (HLAS), _linear A 350 ppm aqueous solution of chain C12-C15 alkyl ethoxy (3.0) sulfate (AE3.0S) and linear C12-C14 EO7 (Lorodac L726 supplied by Sasol) was prepared. The pH of the resulting solution was adjusted to 8.0 using ethanolamine.

2.0 ml of the composition was placed in a glass vial along with 150 mg of each fabric and washed using the procedure described above but at a temperature of 92° C. for 15 minutes.

After cooling to room temperature in the dark, 950 μl of the resulting solution containing the desorbed dye was diluted with 2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethanol (Triton X-100). It was combined with 50 μl of a 20% by weight aqueous solution. Absorbance spectra were measured as above and these solutions were arbitrarily fixed as 95% dye desorption. Solutions were diluted with the following vehicles: 95% of the above standard detergent solution was combined with 5% Triton X-100 (20% by weight) to obtain a calibration curve for each dye used.

The absorbance values (of the main peaks of different dye samples) obtained from the desorption experiments were reported as a percentage of the value of the same dye desorbed using a reference detergent solution at 92 °C in the above calibration procedure.

The following solutions were applied to dyed cotton fabrics (cotton fabrics dyed using Reactive Black 5, supplied by CFT with product code AISE code 21) and dyed polyester fabrics (cotton fabrics dyed with product code AISE code 31 by CFT). Both polyester fabrics dyed using Dispersion Blue 79 supplied by Polyester were evaluated for their effect on dye bleed and the results are presented below. With the exception of Legs A and F (water), the solutions used in the remaining legs contained 350 ppm surfactant.

¹ hardness 2.67 mmol CaCO ₃ equivalents (15 gpg)
² linear C10-C13 alkylbenzenesulfonic acid (HLAS), linear C12-C15 alkyl ethoxylate (3.0) sulfate (AE3.0S), and linear C12-C14 EO7 (Lordac® supplied by Sasol). ) L726) in a 1:1:1 weight ratio.
³ Lordac® L726 supplied by Sasol
⁴ Lutensol® XP70 supplied by BASF
⁵ Plurafac® SLF180 supplied by BASF

The effect of detergent on dye bleed from fabrics during laundering can be seen by comparing leg B to leg A for cotton fabrics and leg G to leg F for polyester fabrics.

From comparing the dye bleed from legs D and E to leg C, branched nonionic surfactants reduce dye bleed more than linear branched nonionic surfactants when washing cotton. I understand that. A comparison of Legs I and J with Leg H demonstrates the same benefits for branched nonionics when washing polyester fabrics.

From Legs B and G, it can be seen that when the wash temperature is reduced (from 92°C to 40°C), dye bleed is reduced for both cotton and polyester fabrics.

The following comparative tests demonstrate the reduction in dye bleed during laundering when using the compositions of the present invention.

The following compositions were prepared by simple mixing.

^6- cationic polymer Merquat 281, molecular weight 450,000 Da, supplied by Lubrizol.
⁷ Polyvinyl acetate grafted polyethylene oxide copolymer with a polyethylene oxide backbone and multiple polyvinyl acetate side chains, supplied by BASF, Germany.

A cotton fabric pre-dyed with Reactive Red 239 (AISE17 supplied by CFT) was cut into 6 cm x 6 cm pieces. If it was necessary to avoid fraying of the edges of the fabric, plastic edging was applied to the fabric squares with heat.

A tergotometer pot was filled with 4.3 g of each example composition and water (3 equivalents (15 gpg) of 2.67 mmol CaCO ₂ hardness) was added to form a 1 L wash solution. The following fabric swatches were added to each Turgotometer pot.
- 3 swatches of Reactive Red 239 - 5gr black cotton ballast - 3gr black polyester ballast - 6x6cm swatches of other colors to reach a total fabric load of 45g

The tergotometer pot was heated to a temperature of 60°C and stirred for 40 minutes at a speed of 300 rpm. After washing, the test fabric and ballast were rotated for 2 minutes at a speed of 1000 rpm, then rinsed twice for 5 minutes in water at a temperature of 20° C. and a hardness of 2.67 mmol CaCO3 equivalents (15 gpg), with rotation of 1000 rpm after each rinse step. The process was run for 2 minutes. In the final step, the fabric was tumble dried. The washing cycle was repeated for a total of 5 cycles.

The test swatches were analyzed for color change relative to an unwashed reference fabric using a spectrophotometer (Konika Minolta CM-3610A), and color change was measured on the ΔE CMC scale. The results are shown in Table 4 below.

Each pot contained 3 pieces of each of the test fabrics (3 internal replicates). Each composition was added to two different pots (two external replicates) and the ΔE CMC readings were averaged for each treatment.

^* Significance calculated for Example A via Anova HSD with alpha=0.05

As can be seen from the above data, laundry using compositions of the present invention (Example 1) containing a cationic polymer and a linear nonionic surfactant (Example B) or a cationic polymer and a nonionic surfactant (Example B) It resulted in less dye fading than from the comparative composition without ionic surfactant.

⁸ poly(diallyldimethylammonium chloride/acrylamide), Merquat 740, molecular weight 100,000 Da, supplied by Lubrizol.

The dimensions and values disclosed herein are not to be understood as being strictly limited to the precise numerical values recited. Instead, unless indicated otherwise, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

The dimensions and values disclosed herein are not to be understood as being strictly limited to the precise numerical values recited. Instead, unless indicated otherwise, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
[1] A laundry detergent composition comprising a surfactant system and a cationic polymer,
the surfactant system comprises a branched nonionic surfactant;
The cationic polymers include poly(diallyldimethylammonium chloride), a copolymer of diallyldimethylammonium chloride and acrylic acid, a copolymer of acrylamide and methacrylamide propyltrimethylammonium chloride, a copolymer of acrylamide and diallyldimethylammonium chloride, methacrylate and methacrylate. Copolymer of amidopropyltrimethylammonium chloride and acrylic acid, copolymer of acrylamide and methacrylamidepropyltrimethylammonium chloride and acrylic acid, copolymer of acrylamide and diallyldimethylammonium chloride and acrylic acid, acrylamide and N,N,N-trimethylamino selected from copolymers with ethyl acrylate, copolymers of diallyldimethylammonium chloride and vinyl alcohol, and mixtures thereof;
The cationic polymer has a molecular weight of 1,000 Da to 1,250,000 Da,
The branched nonionic surfactant is
a) Formula I: R1-CH(R2)-O-(PO) _x (EO) _y (PO) _z -H
In formula I,
R1 is a C4-C14 alkyl chain, preferably a C4-C8 alkyl chain, more preferably a C6 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
b) Formula II: R1-CH(R2)CH2 _- O-(PO) _x (EO) _y (PO) _z -H
In formula II,
R1 is a C3-C13 alkyl chain, preferably a C3-C7 alkyl chain, more preferably a C5 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
and c) mixtures thereof;
A laundry detergent composition selected from:
[2] The surfactant system is present at a concentration of 0.1% to 12%, preferably 0.5% to 10%, more preferably 1% to 3% by weight of the composition. The laundry detergent composition according to [1], comprising a branched nonionic surfactant.
[3] The laundry detergent composition comprises the surfactant system at a concentration of 1% to 70%, preferably 10% to 50%, more preferably 15% to 35% by weight. 1] or the laundry detergent composition according to [2].
[4] The surfactant system further comprises an anionic surfactant, preferably an anionic surfactant selected from the group consisting of sulfonate surfactants, sulfate surfactants, and mixtures thereof, more preferably The laundry detergent composition according to any one of [1] to [3], wherein the anionic surfactant includes a sulfonate surfactant and a sulfate surfactant.
[5] The anionic surfactant includes an alkyl sulfate surfactant, and the alkyl sulfate surfactant has a molecular weight of 0.5 to 8.0, preferably 1.0 to 5.0, more preferably 2.0. The laundry detergent composition according to [4], having an average degree of ethoxylation of 0 to 3.5.
[6] The anionic surfactant comprises an alkyl sulfate surfactant, the alkyl sulfate surfactant has an average degree of ethoxylation of less than 0.5, preferably the alkyl sulfate surfactant comprises: [4] comprising a branched alkyl sulfate surfactant, more preferably said branched alkyl sulfate surfactant comprising at least 20% by weight of said alkyl chains of said branched alkyl sulfate surfactant. Laundry detergent compositions as described.
[7] The surfactant system comprises an amphoteric surfactant selected from an amphoteric surfactant and/or a zwitterionic surfactant, preferably an amine oxide surfactant, more preferably an amphoteric surfactant selected from the amine oxide surfactant. The laundry detergent composition according to any one of [1] to [6], wherein the surfactant is lauryl dimethylamine oxide.
[8] The cationic polymer is a group consisting of poly(diallyldimethylammonium chloride), a copolymer of diallyldimethylammonium chloride and acrylic acid, a copolymer of methacrylate, methacrylamide propyltrimethylammonium chloride and acrylic acid, and a mixture thereof. The laundry detergent composition according to any one of [1] to [7], preferably selected from copolymers of diallyldimethylammonium chloride and acrylic acid.
[9] The diallyldimethylammonium chloride and co-acrylic acid monomer are present in a molar ratio of 50:50 to 90:10, preferably 55:45 to 85:15, more preferably 60:40 to 70:30. The laundry detergent composition according to any one of [1] to [8].
[10] The laundry detergent composition according to any one of [1] to [9], wherein the cationic polymer has a molecular weight of 100,000 Da to 1,000,000 Da, more preferably 250,000 Da to 750,000 Da. thing.
[11] The cationic polymer accounts for 0.1% to 10% by weight, preferably 0.5% to 5.0%, more preferably 1.0% to 2.5% by weight of the composition. % of the laundry detergent composition according to any one of [1] to [10].
[12] Use of a laundry detergent composition comprising a branched nonionic surfactant to improve color protection, preferably color retention, of colored fabrics during laundering.
[13] The branched nonionic surfactant is
a) Formula I: R1-CH(R2)-O-(PO) _x (EO) _y (PO) _z -H
In formula I,
R1 is a C4-C14 alkyl chain, preferably a C4-C8 alkyl chain, more preferably a C6 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
b) Formula II: R1-CH(R2)CH2 _- O-(PO) _x (EO) _y (PO) _z -H
R1 is a C3-C13 alkyl chain, preferably a C3-C7 alkyl chain, more preferably a C5 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
The use according to [12], selected from:
[14] The fabric dye is selected from the group consisting of reactive dyes, disperse dyes, and mixtures thereof, preferably the fabric dye is selected from the group consisting of disperse dyes, reactive dyes, and mixtures thereof. The use according to [12] or [13].

Claims (14)

A laundry detergent composition comprising a surfactant system and a cationic polymer, the composition comprising:
the surfactant system comprises a branched nonionic surfactant;
The cationic polymers include poly(diallyldimethylammonium chloride), a copolymer of diallyldimethylammonium chloride and acrylic acid, a copolymer of acrylamide and methacrylamide propyltrimethylammonium chloride, a copolymer of acrylamide and diallyldimethylammonium chloride, methacrylate and methacrylate. Copolymer of amidopropyltrimethylammonium chloride and acrylic acid, copolymer of acrylamide and methacrylamidepropyltrimethylammonium chloride and acrylic acid, copolymer of acrylamide and diallyldimethylammonium chloride and acrylic acid, acrylamide and N,N,N-trimethylamino selected from copolymers with ethyl acrylate, copolymers of diallyldimethylammonium chloride and vinyl alcohol, and mixtures thereof;
The cationic polymer has a molecular weight of 1,000 Da to 1,250,000 Da,
The branched nonionic surfactant is
a) Formula I: R1-CH(R2)-O-(PO) _x (EO) _y (PO) _z -H
In formula I,
R1 is a C4-C14 alkyl chain, preferably a C4-C8 alkyl chain, more preferably a C6 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
b) Formula II: R1-CH(R2)CH2 _- O-(PO) _x (EO) _y (PO) _z -H
In formula II,
R1 is a C3-C13 alkyl chain, preferably a C3-C7 alkyl chain, more preferably a C5 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
c) and mixtures thereof;
A laundry detergent composition selected from: Said surfactant system is said to be said non-branched at a concentration of from 0.1% to 12%, preferably from 0.5% to 10%, more preferably from 1% to 3%, by weight of said composition. 2. The laundry detergent composition of claim 1, comprising an ionic surfactant. Claim 1 or 2, wherein the laundry composition comprises the surfactant system at a concentration of 1% to 70%, preferably 10% to 50%, more preferably 15% to 35% by weight. The laundry detergent composition described in. Said surfactant system further comprises an anionic surfactant, preferably selected from the group consisting of sulfonate surfactants, sulfate surfactants, and mixtures thereof, more preferably said anionic surfactant. A laundry detergent composition according to any one of claims 1 to 3, wherein the surfactant comprises a sulfonate surfactant and a sulfate surfactant. The anionic surfactant includes an alkyl sulfate surfactant, and the alkyl sulfate surfactant has a molecular weight of 0.5 to 8.0, preferably 1.0 to 5.0, more preferably 2.0 to 3. 5. A laundry detergent composition according to claim 4, having an average degree of ethoxylation of .5. The anionic surfactant comprises an alkyl sulfate surfactant, the alkyl sulfate surfactant has an average degree of ethoxylation of less than 0.5, preferably the alkyl sulfate surfactant comprises a branched alkyl sulfate. 5. The laundry according to claim 4, comprising a surfactant, more preferably said branched alkyl sulfate surfactant comprising at least 20% by weight of said alkyl chains of said branched alkyl sulfate surfactant. Detergent composition. The surfactant system comprises an amphoteric surfactant selected from amphoteric surfactants and/or zwitterionic surfactants, preferably amine oxide surfactants, more preferably said amine oxide surfactants. A laundry detergent composition according to any one of claims 1 to 6, wherein is lauryldimethylamine oxide. The cationic polymer is selected from the group consisting of poly(diallyldimethylammonium chloride), a copolymer of diallyldimethylammonium chloride and acrylic acid, a copolymer of methacrylate and methacrylamide propyltrimethylammonium chloride and acrylic acid, and mixtures thereof. A laundry detergent composition according to any one of claims 1 to 7, preferably selected from copolymers of diallyldimethylammonium chloride and acrylic acid. Claim wherein said diallyldimethylammonium chloride and co-acrylic acid monomer are present in a molar ratio of 50:50 to 90:10, preferably 55:45 to 85:15, more preferably 60:40 to 70:30. Item 8. The laundry detergent composition according to any one of items 1 to 8. A laundry detergent composition according to any one of the preceding claims, wherein the cationic polymer has a molecular weight of 100,000 Da to 1,000,000 Da, more preferably 250,000 Da to 750,000 Da. The cationic polymer is present at a concentration of 0.1% to 10%, preferably 0.5% to 5.0%, more preferably 1.0% to 2.5% by weight of the composition. A laundry detergent composition according to any one of claims 1 to 10, wherein the laundry detergent composition is present at: Use of a laundry detergent composition comprising a branched nonionic surfactant to improve color protection, preferably color retention, of colored fabrics during laundering. The branched nonionic surfactant is
a) Formula I: R1-CH(R2)-O-(PO) _x (EO) _y (PO) _z -H
In formula I,
R1 is a C4-C14 alkyl chain, preferably a C4-C8 alkyl chain, more preferably a C6 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
b) Formula II: R1-CH(R2)CH2 _- O-(PO) _x (EO) _y (PO) _z -H
R1 is a C3-C13 alkyl chain, preferably a C3-C7 alkyl chain, more preferably a C5 alkyl chain,
R2 is a C1-C7 alkyl chain, preferably a C1-C5 alkyl chain, more preferably a C3 alkyl chain,
x is 0 to 10, preferably 0 to 5, more preferably 0 to 3,
y is 5 to 20, preferably 6 to 15, more preferably 7 to 12,
z is 0 to 20, preferably 0 to 5, more preferably 0 to 3,
EO stands for ethoxylation, PO stands for propoxylation,
13. The use according to claim 12, selected from: the fabric dye is selected from the group consisting of reactive dyes, disperse dyes, and mixtures thereof; preferably, the fabric dye is selected from the group consisting of disperse dyes, reactive dyes, and mixtures thereof; Use according to claim 12 or 13.