Detergent Composition

Abstract

The need for laundry detergent compositions that improve the deposition of perfume ingredients, especially perfume ingredients that typically do not easily deposit on synthetic fibers, to fabrics containing synthetic fibers is met by incorporating vinylpyrrolidone polymers and specific perfume ingredients into the laundry detergent composition.

Description

[Technical Field]

[0001] A laundry detergent composition, particularly a liquid laundry detergent composition or unit dose article, that improves the freshness of fabrics containing synthetic fibers. [Background technology]

[0002] Clothing textiles do more than just protect the human body from external factors. They are intended to be fashionable and expressive of the wearer. They are also increasingly designed to be functional, weather-resistant yet breathable, absorbing sweat and preventing stuffiness during wear. The need for such functionality has led to the increased use of synthetic fibers, such as polyester and nylon, as well as blends of synthetic and natural fibers, to manufacture clothing. As a result, fabrics containing synthetic fibers now account for the majority of fabrics laundered in the country.

[0003] Perfumes have typically been used to neutralize malodors and to "freshen" the smell of clothing. Perfumes are generally complex mixtures of a wide variety of natural or synthetic fragrance molecules with multiple chemical functional groups, such as alcohols, aldehydes, ketones, esters, lactones, ethers, and nitriles. Perfume molecules are often classified into three groups: "top," "middle," and "bottom" notes, which represent different types of odors and, as their names suggest, are related to the different volatility of the corresponding classes of compounds. While this classification is neither strict nor systematic, top notes are typically the most volatile compounds, evaporating quickly to impart a fresh, floral, sweet, or lush aroma to a fragrance, followed by less volatile middle notes with aromatic, herbal, or fragrant notes, and relatively persistent, high-molecular-weight bottom notes with woody, amber, or musky aromas.

[0004] Laundry detergent compositions are designed to remove soil and stains from fabrics.Perfume ingredients must be able to withstand cleaning chemicals and washing processes, but also need to adhere to fabrics at detectable levels and provide a desired odor profile.However, many perfume ingredients do not easily adhere to fabrics containing synthetic fibers, such as polyester.This means that these typically expensive perfume ingredients need to be added in much larger amounts to liquid laundry compositions in order to provide a desired odor profile to laundry fabrics, such as laundry fabrics containing synthetic fibers.It is also desirable for perfume ingredients to have greater persistence on fabrics containing synthetic fibers, so that the perfume ingredients last longer and accumulate on fabrics over multiple washing cycles.This allows fewer perfume ingredients to be added to laundry detergent compositions.

[0005] It is also known that fabrics containing synthetic fibers, such as polyester, are prone to malodor due to the strong adhesion between the hydrophobic synthetic fibers and bodily wastes, such as sebum. This problem is exacerbated by the fact that fabrics containing synthetic fibers typically need to be washed in a washing machine using a short, difficult cycle, typically at a lower wash temperature. As a result, residual amounts of such bodily wastes remain on fabrics containing synthetic fibers. Therefore, there is a strong desire to increase the amount of perfume ingredients, especially the amount of perfume ingredients, on such fabrics containing synthetic fibers to counteract such malodors.

[0006] Thus, there remains a need for laundry detergent compositions that improve the deposition of perfume ingredients on fabrics, including synthetic fibers, particularly perfume ingredients that typically do not deposit easily on synthetic fibers, and that enhance the persistence of perfume ingredients over multiple washes.

[0007] WO 2004016234(A1) relates to a composition such as an aqueous consumer product comprising an encapsulated material (e.g., a fragrance) within a shell capsule, each capsule comprising an encapsulation wall having an inner surface and an outer surface, the inner and / or outer surface of the shell wall being coated with a coating, the composition further comprising a surfactant and / or a solvent, the coating being capable of improving the barrier properties of the shell and enhancing the retention of the encapsulated material within the shell. WO 1998052527(A1) relates to a fragrance fixative comprising (a) polyvinylpyrrolidone (PVP), (b) hydroxypropyl cellulose (HPC), and (c) a hydrophobic oil, the fragrance fixative being used by being incorporated into a fragrance-containing formulation or product. WO 2015192972(A1) and WO 2015192973(A1) relate to methods for conditioning fabrics, the method comprising contacting fabrics with an aqueous medium containing a composition, the composition comprising (a) a quaternary ammonium compound, (b) a cationic polysaccharide, and (c) a nonionic polysaccharide, the quaternary ammonium compound being a biodegradable quaternary ammonium compound, and the composition having excellent softening performance and improved fragrance longevity. GB 2432852(A) relates to polymer particles comprising a fragrance, a benefit agent, preferably a sugar polyester, a polymer, and a cationic deposition aid, the particles may further comprise a shell, thereby obtaining a core / shell morphology. WO 1997048374(A2) relates to a liquid personal cleansing composition for enhancing fragrance deposition on the skin and increasing fragrance longevity on the skin. European Patent Publication No. 3643772(A1) relates to a single-dose fragrance enhancement pack, the pack comprising a container including a water-soluble film and a single-dose fragrance enhancement composition enclosed within the container, the single-dose fragrance enhancement composition comprising 0.1 to 10 wt. % fragrance, based on the total weight of the fragrance enhancement composition; 45 to 75 wt. % sugar, based on the total weight of the fragrance enhancement composition; 0.1 to 6 wt. % surfactant, based on the total weight of the fragrance enhancement composition; and 10 to 25 wt. % water, based on the total weight of the fragrance enhancement composition.WO 1998052527(A1) relates to a perfume fixative comprising (a) polyvinylpyrrolidone (PVP), (b) hydroxypropyl cellulose (HPC), and (c) a hydrophobic oil, which is incorporated into perfume-containing formulations or products for use. EP 3275983(A) relates to laundry, post-laundry treatment, or laundry care compositions, particularly liquid detergents containing 0.001 to 30% by weight, preferably 0.01 to 4% by weight, of at least one polymer comprising vinylpyrrolidone and / or vinyl acetate; textiles providing improved wrinkle resistance and enhanced softness after laundering; and the use of the polymer essential to the present invention to minimize wrinkle tendency, facilitate ironing, and improve fabric softness. WO 2010025116(A1) relates to stable color maintenance and / or restoration compositions comprising at least one cationic polymer and an anionic surfactant, and methods of providing the same. WO 2013070560(A1) relates to a surface treatment composition comprising a specific cationic polymer, an anionic surfactant, one or more shielding salts, and a hydrophobic association disruptor, the surface treatment composition comprising at least 6% by weight of the cationic polymer, at least 6% by weight of the anionic surfactant, and at least 4% by weight of the shielding salt, the weight ratio of the anionic surfactant to the cationic polymer being 0.5:1 to 4:1, and the composition may also have a weight ratio of the shielding salt to the cationic polymer being 0.3:1 to 3:1. EP 3275983(A) relates to a laundry, post-laundry treatment, or laundry care composition, particularly a liquid detergent, containing 0.001 to 30% by weight, preferably 0.01 to 4% by weight, of at least one polymer comprising vinylpyrrolidone and / or vinyl acetate to provide improved wrinkle resistance and enhanced softness after laundering.U.S. Patent Application Publication No. 2002 / 010105(A) relates to detergent compositions containing an efficient persistent perfume composition, the detergent composition comprising a perfume composition comprising at least about 70% persistent perfume ingredients characterized by a boiling point of about 250° C. or greater, measured at normal standard pressure, and a logP or logP calculation of about 3 or greater, the perfume being substantially free of halogenated fragrance materials and nitromusks, the composition also containing from about 0.01 to about 95% of a detergent surfactant system, preferably containing anionic and / or nonionic detergent surfactants. EP 1072673(A) relates to laundry and cleaning compositions comprising a bleaching system and a selected perfume composition, the perfume composition comprising perfume ingredients selected from the class of unsaturated perfume ingredients: esters, ethers, alcohols, aldehydes, ketones, nitriles, lactones, Schiff bases, terpenes and their derivatives, cyclic alkenes, cyclic oxides, oximes, and mixtures thereof, and perfume compositions are also provided, the amount of unsaturated materials representing at least 40% by weight of the perfume composition. EP 3375854(A) relates to liquid laundry detergent compositions comprising core / shell encapsulates, water-soluble unit dose articles comprising the encapsulates, and methods of using the compositions and unit dose articles. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] International Publication No. 2004016234(A1) [Patent Document 2] International Publication No. 1998052527(A1) [Patent Document 3] International Publication No. 2015192972(A1) [Patent Document 4] International Publication No. 2015192973(A1) [Patent Document 5] British Patent No. 2432852(A) [Patent Document 6] International Publication No. 1997048374(A2) [Patent Document 7] European Patent Publication No. 3643772(A1) [Patent Document 8] European Patent Publication No. 3275983(A) [Patent Document 9] International Publication No. 2010025116(A1) [Patent Document 10] International Publication No. 2013070560(A1) [Patent Document 11] U.S. Patent Application Publication No. 2002 / 010105(A) [Patent Document 12] European Patent No. 1072673(A) [Patent Document 13] European Patent No. 3375854(A) Summary of the Invention [Means for solving the problem]

[0009] The present invention relates to a liquid laundry detergent composition comprising a surfactant system, a pyrrolidone polymer, and an unencapsulated fragrance, wherein the surfactant system comprises a surfactant at a concentration of 1.0% to 70% by weight of the composition, the surfactant system comprises an anionic surfactant at a concentration of 1.4% to 52% by weight of the liquid laundry detergent composition, the vinylpyrrolidone polymer is selected from the group consisting of polyvinylpyrrolidone (PVP), copolymers of vinylpyrrolidone and vinyl imidazole (PVP / PVI), copolymers of vinylpyrrolidone and vinyl acetate (PVP / VA), and mixtures thereof, and the fragrance comprises a hydrophobic fragrance ingredient having a LogP greater than 2.5, the hydrophobic fragrance ingredient including linalool, ionone beta, lilial, citronellol, citronellyl nitrile, α-pinene, ethyl saffronate, linalyl propionate, allyl amyl glycolate, helvetolide, laevocarbon, phenylethyl dimethyl carbinol, and mixtures thereof.

[0010] The present invention further relates to the use of laundry detergent compositions containing pyrrolidone polymers to improve the deposition of perfume ingredients on fabrics, including synthetic fibers. DETAILED DESCRIPTION OF THE INVENTION

[0011] The detergent compositions of the present invention have been found to improve the deposition of perfume ingredients onto fabrics, including synthetic fibers, particularly perfume ingredients that typically do not deposit easily on synthetic fibers, and to improve the retention of perfume ingredients on synthetic fibers over multiple washes.

[0012] Unless otherwise stated, all ingredient or composition concentrations are in terms of the active portion of that ingredient or composition and are exclusive of impurities, such as residual solvents or by-products that may be present in commercial sources of such ingredient or composition.

[0013] Unless otherwise indicated, all percentages and ratios are calculated on a weight basis. Unless otherwise indicated, all percentages and ratios are calculated based on the total composition.

[0014] Unless otherwise specified, all measurements are performed at 25°C.

[0015] As used herein, the articles "a" and "an," when used in a claim, are understood to mean one or more of what is claimed or described.

[0016] Laundry detergent composition: The laundry detergent composition is in liquid form.

[0017] As used herein, "liquid detergent composition" refers to a liquid detergent composition that is fluid and can be used to wet wash fabrics, e.g., clothes, preferably in a domestic washing machine. As used herein, "laundry detergent composition" refers to a composition suitable for laundering clothes. The composition may contain solids or gases in any suitable finely divided form, but the overall composition excludes entirely non-fluid product forms, such as tablets or granules. Liquid laundry detergent compositions preferably have a density in the range of 0.9 to 1.3 grams per cubic centimeter, more specifically 1.00 to 1.10 grams per cubic centimeter, excluding solid additives but including foam, if present.

[0018] The composition may be an aqueous liquid laundry detergent composition. In such aqueous liquid laundry detergent compositions, the water content may 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.

[0019] The pH range of the detergent composition may be from 6.0 to 8.9, preferably from pH 7 to 8.8.

[0020] The detergent composition can also be encapsulated in a water-soluble film to form a unit dose article. Such a unit dose article comprises the detergent composition of the present invention, wherein the detergent composition comprises less than 20% by weight, preferably less than 15% by weight, and more preferably less than 10% by weight of water, and the detergent composition is encapsulated in a water-soluble or dispersible film. Such a unit dose article can be formed using any means known in the art. A suitable unit dose article may comprise one compartment, wherein the compartment comprises the liquid laundry detergent composition. Alternatively, the unit dose article may be a multi-compartment unit dose article, wherein at least one compartment comprises the liquid laundry detergent composition.

[0021] The detergent composition can be a powder laundry detergent composition. Such a powder laundry detergent composition is a solid, free-flowing particulate laundry detergent composition. Typically, the powder laundry detergent composition is a fully formulated laundry detergent composition, rather than a portion thereof, such as spray-dried, extruded, or agglomerated particles that form only a portion of the laundry detergent composition.Typically, the powder composition comprises a plurality of chemically distinct particles, such as spray-dried and / or agglomerated and / or extruded base detergent particles, in combination with one or more, typically two or more, or five or more, or even ten or more types of particles selected from the following: phosphate particles; zeolite particles; silicate particles, especially sodium silicate particles; carbonate particles, especially sodium carbonate particles; polymer particles, such as carboxylate polymer particles, cellulose-based polymer particles, starch particles, polyester particles, polyamine particles, terephthalate polymer particles, polyethylene glycol particles; aesthetic particles, such as colored noodles, needles, lamellar particles and ring-shaped particles; enzyme particles, such as protease granules, amylase granules, lipase granules, cellulase granules, mannanase granules, pectate lyase granules, xyloglucanase granules, bleaching enzyme granules and co-granules of any of these enzymes (preferably, these enzyme granules contain sodium sulfate); bleach granules percarbonate particles, particularly coated percarbonate particles such as percarbonates coated with carbonate, sulfate, silicate, borosilicate, or any combination thereof; perborate particles; bleach activator particles such as tetraacetylethylenediamine particles and / or alkyloxybenzenesulfonate particles; bleach catalyst particles such as transition metal catalyst particles and / or isoquinolinium bleach catalyst particles; preformed peracid particles, particularly coated preformed peracid particles; filler particles such as sulfate particles and chloride particles; clay particles such as montmorillonite particles and clay and silicone particles; flocculating agent particles such as polyethylene oxide particles; wax particles such as wax agglomerates; silicone particles, whitening agent particles; dye transfer inhibitor particles; dye fixative particles; perfume particles such as perfume microcapsules and starch-encapsulated perfume accord particles, or pro-perfume particles such as Schiff base reaction product particles; hue dye particles; chelating agent particles such as chelating agent agglomerates; and any combination thereof.

[0022] The detergent compositions of the present invention may contain renewable ingredients. The compositions disclosed herein may contain from 20%, 40%, or 50% by weight of renewable ingredients, up to 60%, 80%, or even 100% by weight. The compositions disclosed herein may be at least partially or completely bio-based. Thus, the compositions may contain 50% to 100%, preferably 75% to 100%, most preferably 80% to 100%, and most preferably 90% to 100% bio-based carbon content. Bio-based means that the material is derived from biologically derived materials, such as cultivated plants, rather than from coal or petroleum. The percent bio-based carbon content can be calculated as "percent modern carbon (pMC)," derived using the method of ASTM D6866-16. The compositions of the present disclosure may be substantially free of petroleum-derived solvents. The compositions of the present disclosure may also be substantially free of surfactants or polymers derived from petroleum-derived alcohols.

[0023] The laundry detergent compositions can be manufactured using any suitable process known to those skilled in the art.

[0024] Vinylpyrrolidone polymer: The detergent composition includes one or more vinylpyrrolidone polymers. Vinylpyrrolidone polymers have typically been used as dye transfer inhibitor polymers during the laundry process. The vinylpyrrolidone polymers can be present at a concentration of 0.01% to 3.0%, preferably 0.05% to 2.0%, more preferably 0.1% to 1.0% by weight of the composition.

[0025] Such dye transfer inhibitor polymers have been used to complex dyes released from fabrics during the laundering process and prevent the dyes from redepositing on other fabrics. Such vinylpyrrolidone polymers have been found to improve the deposition of some perfume ingredients on fabrics, particularly polyester fabrics, while keeping the dyes suspended in the wash liquor.

[0026] The vinylpyrrolidone polymer is selected from the group consisting of polyvinylpyrrolidone (PVP), a copolymer of vinylpyrrolidone and vinylimidazole (PVP / PVI), a copolymer of vinylpyrrolidone and vinyl acetate (PVP / VA), and mixtures thereof, preferably the vinylpyrrolidone polymer is selected from the group consisting of a copolymer of vinylpyrrolidone and vinylimidazole (PVP / PVI), a copolymer of vinylpyrrolidone and vinyl acetate (PVP / VA), and mixtures thereof, preferably a copolymer of vinylpyrrolidone and vinylimidazole (PVP / PVI).

[0027] Polyvinylpyrrolidone ("PVP") has amphiphilic properties, possessing highly polar amide groups that impart hydrophilic and polar-attracting properties, and nonpolar methylene and methane groups in the backbone and / or rings that impart hydrophobic properties. The rings may also provide planar alignment with aromatic rings in dye molecules. PVP is readily soluble in aqueous and organic solvent systems. PVP is commercially available as either a powder or an aqueous solution in several viscosity grades. The compositions of the present invention preferably use a copolymer of N-vinylpyrrolidone and N-vinylimidazole (also abbreviated herein as "PVPVI"). The copolymer of N-vinylpyrrolidone and N-vinylimidazole may have a molar ratio of N-vinylimidazole to N-vinylpyrrolidone of 1:1 to 0.2:1, more preferably 0.8:1 to 0.3:1, and most preferably 0.6:1 to 0.4:1. The copolymer of N-vinylpyrrolidone and N-vinylimidazole may be linear or branched.

[0028] Suitable copolymers of vinylpyrrolidone (PVP) and vinyl acetate (VA) may have a PVP:VA molar ratio of 30:70 to 70:30, preferably 50 / 50 to 70 / 30. The copolymer of vinylpyrrolidone (PVP) and vinyl acetate is preferably a random linear copolymer of two monomers, i.e., N-vinyl-2-pyrrolidone and vinyl acetate. A copolymer with a specific ratio of 60% N-vinyl-2-pyrrolidone and 40% vinyl acetate is known as copovidone.

[0029] The vinylpyrrolidone polymer can have a weight-average molecular weight of 5,000 Da to 1,000,000 Da, preferably 5,000 Da to 50,000 Da, and more preferably 10,000 Da to 20,000 Da. The number-average molecular weight range is determined by light scattering as described by Barth JHG and Mays JW Chemical Analysis Vol. 1 13, "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 vinylpyrrolidone polymer is commercially available from BASF (BASF SE, Germany) under the trade name Sokalan® HP 56 K.

[0030] Mixtures of more than one vinylpyrrolidone polymer can be used.

[0031] fragrance The composition comprises a perfume. Preferably, the perfume is present in the composition as a "free" perfume, i.e., the perfume is not encapsulated and is therefore distributed throughout the laundry detergent composition. The composition may comprise such free perfume at a concentration of 0.1% to 5.0%, preferably 0.25% to 3.0%, more preferably 0.5% to 1.5%, by weight of the composition.

[0032] Perfumes include perfume ingredients or compounds. Surprisingly, the vinylpyrrolidone polymers used in the present invention are particularly suitable for hydrophobic perfume ingredients such as linalool (3,7-dimethylocta-1,6-dien-3-ol), ionone beta ((E)-4-(2,6,6-trimethylcyclohex-1-en-1-yl)but-3-en-2-one), lilial (3-(4-(tert-butyl)phenyl)-2-methylpropanal), citronellol (3,7-dimethyloct-6-en-1-ol), citronellyl nitrile (3,7-dimethyloct-6-enenitrile), α-pinene (2,6,6-trimethylbicyclo(3.1.1)hept-2-ene), ethyl saffronate (2,6,6-trimethylcyclohex-1-en-1-yl), methyl ... It has been found that the deposition of hydrophobic perfume ingredients is improved when the composition contains 2-(1-(3,3-dimethylcyclohexyl)ethoxy)-2-methylpropyl propionate, 2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one, 2-methyl-4-phenylbutan-2-ol, 2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one, 2-methyl-4-phenylbutan-2-ol, and mixtures thereof. The hydrophobic perfume ingredients preferably include linalool, ionone beta, lilial, citronellol, citronellyl nitrile, α-pinene, ethyl saffronate, linalyl propionate, and mixtures thereof, and more preferably include linalool, ionone beta, lilial, citronellol, and mixtures thereof.

[0033] The hydrophobic perfume ingredients described herein can be present at a concentration of 0.05 to 50.0% by weight of the free perfume, preferably 0.10 to 25.0% by weight, and more preferably 0.2 to 10.0% by weight. Linalool is preferably present at a concentration of 0.1 to 20.0% by weight of the free perfume, preferably 1.0 to 10.0% by weight, and more preferably 2.0 to 7.5% by weight. Ionone beta is preferably present at a concentration of 0.1 to 5.0% by weight of the free perfume, preferably 0.25 to 5.0% by weight, and more preferably 0.5 to 2.5% by weight. Lilial is preferably present at a concentration of 0.1 to 20.0% by weight of the free perfume, preferably 1.0 to 10% by weight, and more preferably 3.0 to 8.5% by weight. Citronellol is preferably present in a concentration of 0.1% to 15.0% by weight of the free flavor, preferably 0.25% to 8.0% by weight, more preferably 1.0% to 5.0% by weight. Citronellyl nitrile is preferably present in a concentration of 0.1% to 5.0% by weight of the free flavor, preferably 0.15% to 4.0% by weight, more preferably 0.5% to 2.0% by weight. A-pinene is preferably present in a concentration of 0.1% to 5.0% by weight of the free flavor, preferably 0.2% to 2.5% by weight, more preferably 0.25% to 1.5% by weight. Ethyl saffronate is preferably present in a concentration of 0.1% to 2.0% by weight of the free flavor, preferably 0.2% to 1.5% by weight, more preferably 0.25% to 1.0% by weight. Linalyl propionate is preferably present in a concentration of 0.1% to 2.0% by weight of the free flavor, preferably 0.15% to 1.5% by weight, more preferably 0.17% to 1.5% by weight. Allyl amyl glycolate is preferably present in a concentration of 0.1% to 5.0% by weight of the free flavor, preferably 0.2% to 2.5% by weight, more preferably 0.25% to 1.5% by weight. Helvetolide is preferably present in a concentration of 0.1% to 5.0% by weight of the free flavor, preferably 0.25% to 5.0% by weight, more preferably 0.5% to 2.5% by weight.Laevocarvone is preferably present in a concentration of 0.1% to 2.0%, preferably 0.15% to 1.5%, more preferably 0.17% to 1.5% by weight of the free flavoring. Phenylethyldimethylcarbinol is preferably present in a concentration of 0.1% to 5.0%, preferably 0.2% to 2.5%, more preferably 0.25% to 1.5% by weight of the free flavoring.

[0034] The perfume comprises hydrophobic perfume ingredients having a LogP greater than 2.5, preferably greater than 3.0.

[0035] The measure of hydrophobicity of a fragrance ingredient is the physicochemical property logP (オクタノール / 水) The octanol / water partition coefficient (P) of a fragrance ingredient is the ratio of its equilibrium concentrations in octanol and water. Because fragrance ingredients' partition coefficients are typically high, they are more conveniently expressed in logarithmic base 10 form, or logP.

[0036] The log P value of a compound is the logarithm of the partition coefficient between n-octanol and water and is an established measure of a compound's hydrophilicity / hydrophobicity. More hydrophobic perfume ingredients typically deposit more efficiently from the wash liquor onto fabrics during the washing process. However, when surfactants are added, especially at concentrations higher than the critical micellar concentration (CMC), the hydrophobic phase generated by the micelles reduces the deposition of perfume ingredients with high log P values, with perfume ingredients with a log P of at least 3.0 being particularly affected (see "Modeling perfume deposition on fabric during a washing cycle: a theoretical approach," Normand et al., January 2008, Flavor and Fragrance Journal 23(1): 49-57).

[0037] The logP of a perfume ingredient is preferably calculated using the methods described herein and is often referred to as consensus logP or clogP. If clogP cannot be calculated, logP may be measured. clogP and measured logP may typically differ slightly. In such cases, the clogP value is used preferentially.

[0038] The logP value can be calculated using the fragment approach of Hansch and Leo and expressed as clogP. See, for example, A. Leo, Comprehensive Medicinal Chemistry, Vol. 4, C. Hansch et al., p. 295, Pergamon Press, 1990. In the present invention, clogP is preferably calculated using the Consensus LogP module of the ACD / Labs (Advanced Chemistry Development, Inc., Canada) Percepta platform (version 2020), available online at acdlabs.com. The Consensus LogP model predicts LogP as a weighted average of the ACD / LogP Classic and ACD / LogP GALAS predictions.

[0039] In such models, the clogP of a compound is determined by the sum of its non-overlapping molecular fragments (defined as one or more atoms covalently bonded to each other within a molecule). The fragmentary logP values are determined using a statistical method similar to atomic methods (least-squares fit to a training set). In addition, Hammett-type corrections are typically included to account for electronic and steric effects. While such methods generally provide better results than atom-based methods, they cannot be used to predict partition coefficients for molecules containing rare functional groups (e.g., when experimental data for molecules containing such groups is lacking) because the methods are not yet parameterized.

[0040] Alternatively, but less preferred, LogP measurements can be performed in a variety of ways, the most common being the shake-flask method, in which a portion of the solute of interest is dissolved in fixed amounts of octanol and water, shaken for a fixed period of time, and then the concentration of the solute in each solvent is measured. This can be time-consuming, especially in the absence of a rapid spectroscopic method for measuring the concentration of molecules in each phase. A faster method for determining logP utilizes high-performance liquid chromatography. The logP of a solute can be determined by correlating its retention time with similar compounds with known logP values.

[0041] surfactant system The surfactants and surfactant mixtures provide cleaning, stain removal, or laundering benefits to soiled materials. Suitable surfactants can be anionic surfactants, nonionic surfactants, zwitterionic surfactants, and combinations thereof. The surfactant system preferably includes a combination of anionic and nonionic surfactants.

[0042] The laundry composition comprises the surfactant system at a concentration of from 1.0% to 70% by weight, preferably from 8.0% to 50% by weight, more preferably from 13% to 35% by weight.

[0043] The surfactant system comprises an 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% by weight of the liquid laundry detergent composition.

[0044] Suitable anionic surfactants can be selected from the group consisting of sulfonate surfactants, sulfate surfactants, and mixtures thereof. Preferably, the anionic surfactant comprises a sulfonate surfactant and a sulfate surfactant, more preferably a mixture of a sulfonate surfactant and a sulfate surfactant. Suitable anionic surfactants also include fatty acids and their salts, which are typically added as builders. However, any anionic surfactant known in the art of detergent compositions can be used, such as those originally disclosed in "Surfactant Science Series," Vol. 7, edited by W.M. Linfield and Marcel Dekker. However, the composition preferably contains at least a sulfonic acid surfactant, such as linear alkylbenzene sulfonic acid, although water-soluble salt forms can also be used. Alkyl sulfates or mixtures thereof are also preferred. A combination of a linear alkylbenzene sulfonate surfactant and an alkyl sulfate surfactant is particularly preferred, especially for improved stain removal.

[0045] Anionic sulfonate or sulfonic acid surfactants suitable for use herein include the acid and salt forms of alkyl benzene sulfonates, alkyl ester sulfonates, alkanesulfonates, alkyl sulfonated polycarboxylic acids, and mixtures thereof. Suitable anionic sulfonate or sulfonic acid surfactants include C5-C20 alkyl benzene sulfonates, more preferably C10-C16 alkyl benzene sulfonates, more preferably C11-C13 alkyl benzene sulfonates, C5-C20 alkyl ester sulfonates, C6-C22 primary or secondary alkanesulfonates, C5-C20 sulfonated polycarboxylic acids, and mixtures thereof, but preferably C11-C13 alkyl benzene sulfonates. The aforementioned surfactants may vary widely in their 2-phenyl isomer content.

[0046] Anionic sulfate salts suitable for use in the compositions of the present invention include primary and secondary alkyl sulfates having linear or branched alkyl or alkenyl moieties having from 9 to 22 carbon atoms, more preferably from 12 to 18. Also useful are beta-branched alkyl sulfate surfactants or mixtures of commercially available materials having a weight average degree of branching (of the surfactant or mixture) of at least 50%.

[0047] Mid-chain branched alkyl sulfates or sulfonates are also suitable anionic surfactants for use in the compositions of the present invention. Preferred are C5 to C22, preferably C10 to C20, mid-chain branched alkyl primary sulfates. When mixtures are used, the preferred average total number of carbon atoms in the alkyl moieties is preferably 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-methyl pentadecanol sulfates, the corresponding hexadecanol sulfates, and mixtures thereof. Dimethyl derivatives or other biodegradable alkyl sulfates with light branching can also be used.

[0048] When used, the alkyl alkoxylated sulfate surfactant may 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 may comprise an alkyl sulfate surfactant, the alkyl sulfate surfactant having an average degree of ethoxylation of 0.5-8.0, preferably 1.0-5.0, more preferably 2.0-3.5.

[0049] Alternatively, the anionic surfactant may comprise 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, and more preferably no ethoxylation. Preferred low-ethoxylated alkyl sulfate surfactants contain no further alkoxylation. Preferred low-ethoxylated alkyl sulfate surfactants include branched alkyl sulfate surfactants. The branched alkyl sulfate surfactant may comprise at least 20% by weight, preferably 60% to 100% by weight, more preferably 80% to 90% by weight of the alkyl chains of the branched alkyl sulfate surfactant, of bi-branched alkyl chains. Such branched alkyl sulfates having bi-branched alkyl chains may also be described as 2-alkyl alkanol sulfates or 2-alkyl alkyl sulfates. The branched alkyl sulfates may be neutralized with sodium, potassium, magnesium, lithium, calcium, ammonium, or any suitable amine (e.g., but not limited to, monoethanolamine, triethanolamine, and monoisopropanolamine), or any mixture of neutralizing metals or amines. Suitable branched alkyl sulfate surfactants may contain alkyl chains containing 10 to 18 carbon atoms (C10-C18) or 12 to 15 carbon atoms (C12-C15), with 13 to 15 carbon atoms (C13-C15) being most preferred. Branched alkyl sulfate surfactants can be produced using a process involving a hydroformylation reaction to provide the desired concentration of bi-branching. Particularly preferred branched alkyl sulfate surfactants contain bi-branching, where the bi-branching comprises 20 to 80% by weight, preferably 30 to 65% by weight, and more preferably 40 to 50% by weight of methyl-branched, ethyl-branched, and mixtures thereof.

[0050] Suitable low ethoxylated branched alkyl sulphate surfactants can be derived from alkyl alcohols such as Lial® 145, Isalchem® 145, both supplied by Sasol, optionally blended with other alkyl alcohols to achieve the desired branching distribution.

[0051] In the process of producing alkyl ether sulfate anionic surfactants, trace amounts of 1,4-dioxane by-products may remain. The amount of 1,4-dioxane by-products can be reduced by alkoxylation, especially in ethoxylated alkyl sulfates. Based on recent technological advances, the amount of 1,4-dioxane by-products can be further reduced by subsequent stripping, distillation, evaporation, centrifugation, microwave irradiation, molecular sieving, or catalytic or enzymatic decomposition processes. An alternative method is to use alkyl sulfate anionic surfactants that only contain a low level of ethoxylation, or even that are not ethoxylated. Therefore, the alkyl sulfate surfactant can have an ethoxylation degree of less than 1.0 or less than 0.5, or can be completely ethoxylated.

[0052] Other anionic surfactants suitable for use herein include aliphatic methyl ester sulfonates and / or alkyl polyalkoxylated carboxylates, such as alkyl ethoxylated carboxylates (AECs).

[0053] Anionic surfactants are typically present in the form of salts with alkanolamines or alkali metals such as sodium and potassium.

[0054] For improved stability and grease cleaning, the liquid detergent composition may preferably comprise a combination of linear alkylbenzene sulfonate surfactant and alkyl sulfate surfactant in a ratio of linear alkylbenzene sulfonate surfactant to alkyl alkoxylated sulfate surfactant of from 15:1 to 0.1:1, preferably from 10:1 to 0.3:1, more preferably from 5:1 to 1:1.

[0055] The liquid detergent composition may include a nonionic surfactant, which may be present in the liquid detergent composition at a level of from 1.0% to 20%, preferably from 2.5% to 15%, more preferably from 5.0% to 12.5% by weight of the composition.

[0056] Suitable nonionic surfactants include, but are not limited to, C12-C18 alkyl ethoxylates ("AE"), including so-called narrow-peak alkyl ethoxylates and C6-C12 alkylphenol alkoxylates (especially ethoxylates and mixed ethoxy / propoxy), block alkylene oxide condensates of C6-C12 alkylphenols, alkylene oxide condensates of C8-C22 alkanols, and ethylene oxide / propylene oxide block polymers (Pluronic-BASF Corp.). An extensive disclosure of these types of surfactants can be found in U.S. Pat. No. 3,929,678.

[0057] The nonionic surfactant may be a condensation product of a C12 to C15 alcohol with 5 to 20 moles of ethylene oxide per mole of alcohol, for example, a condensation product of a C12 to C13 alcohol with 6.5 moles of ethylene oxide per mole of alcohol.

[0058] The surfactant system may comprise a branched nonionic surfactant, preferably at a concentration 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.

[0059] 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.

[0060] Alkyl polyglucoside surfactants are also suitable. The alkyl polyglucoside surfactant may be a C8-C16 alkyl polyglucoside surfactant, for example, a C8-C14 alkyl polyglucoside surfactant. The alkyl polyglucoside preferably has an average degree of polymerization of 0.1 to 3, more preferably 0.5 to 2.5, and even more preferably 1 to 2. C8-C16 alkyl polyglucosides are commercially available from several sources (e.g., Simusol® surfactants from Seppic Corporation, and Glucopon® 600 CSUP, Glucopon® 650 EC, Glucopon® 600 CSUP / MB, and Glucopon® 650 EC / MB from BASF Corporation).

[0061] The surfactant system may comprise amphoteric and / or zwitterionic surfactants at a concentration 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.

[0062] Suitable amphoteric surfactants include amine oxide surfactants. Amine oxide surfactants are amine oxides having the formula R1R2R3NO, where R1 is a hydrocarbon chain containing 1 to 30 carbon atoms, preferably 6 to 20 carbon atoms, and more preferably 8 to 16 carbon atoms, and R2 and R3 are independently saturated or unsaturated, substituted or unsubstituted, linear or branched hydrocarbon chains containing 1 to 4 carbon atoms, preferably 1 to 3 carbon atoms, and more preferably a methyl group. R1 may be a saturated or unsaturated, substituted or unsubstituted, linear or branched hydrocarbon chain.

[0063] Suitable amine oxides for use herein are, for example, C 2 O 4 , preferably available commercially from Albright & Wilson.12 ~C 14 Dimethylamine oxide (lauryldimethylamine oxide), commercially available from Clariant under the trade name Genaminox® LA 12 ~C 14 Amine oxide, or AROMOX® DMC from AKZO Nobel.

[0064] Suitable amphoteric or zwitterionic 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 U.S. Patent Nos. 5,104,646 and 5,106,609. Suitable amphoteric surfactants include surfactants broadly described as derivatives of aliphatic secondary and tertiary amines, where the aliphatic group may be linear or branched, one of the aliphatic substituents contains 8 to 18 carbon atoms, and one contains an anionic group such as carboxy, sulfonate, sulfate, phosphate, or phosphonate. Suitable amphoteric surfactants for use in the present invention include, but are not limited to, cocoamphoacetate, cocoamphodiacetate, lauroamphoacetate, lauroamphodiacetate, and mixtures thereof.

[0065] Preferably, surfactants containing saturated alkyl chains are used.

[0066] Optional Ingredients The detergent compositions may further comprise one or more of the following optional ingredients: dye-fixing polymers other than pyrrolidone polymers, external structurants or thickeners, enzymes, enzyme stabilizers, cleaning polymers, bleaching systems, optical brighteners, hueing dyes, particulate materials, non-free perfume ingredients, other odor control agents, hydrotropes, suds suppressors, fabric care benefit agents, pH adjusters, preservatives, non-fabric substantive dyes, and mixtures thereof.

[0067] External structurants or thickeners: Preferred external structurants and thickeners are those that do not rely on charge-charge interactions to provide a structuring effect. Thus, 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 urethane; hydrophobically modified nonionic polyols; and mixtures thereof.

[0068] Suitable polymeric structurants include naturally occurring and / or synthetic polymeric structurants.

[0069] Examples of naturally occurring polymeric structuring agents that can be used in the present invention include microfibrillated cellulose, hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, carboxymethyl cellulose, 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.

[0070] Examples of synthetic polymeric structurants that may be used in the present invention include polycarboxylates, hydrophobically modified ethoxylated urethanes (HEUrs), hydrophobically modified nonionic polyols, and mixtures thereof.

[0071] Preferably, the aqueous liquid detergent composition has a viscosity of 50 to 5,000 mPa·s, preferably 75 to 1,000 mPa·s, more preferably 100 to 500 mPa·s, when measured at 20°C and a shear rate of 100 s-1. To improve phase stability and also improve the stability of suspended components, the aqueous liquid detergent composition has a viscosity of 50 to 250,000 mPa·s, preferably 5,000 to 125,000 mPa·s, more preferably 10,000 to 35,000 mPa·s, when measured at 20°C and a shear rate of 0.05 s-1.

[0072] Cleaning polymers: The detergent composition preferably comprises a cleaning polymer. Such cleaning polymers are believed to at least partially remove stains from textile fibers and allow the enzyme system to more effectively decompose complexes containing mannan and other polysaccharides. Suitable cleaning polymers clean a wide range of soils on surfaces and fabrics and / or suspend soils. Non-limiting examples of suitable cleaning polymers include amphiphilic alkoxylated grease cleaning polymers, muddy soil cleaning polymers, soil release polymers, and soil suspension polymers. Preferred cleaning polymers are represented by formula (I):

[0073] [ka] (wherein n is a number of 3 or more), and Formula (II):

[0074] [ka] (In the formula, A - represents an anion, in particular selected from halides such as fluoride, chloride, bromide, iodide, sulfate, hydrogen sulfate, alkyl sulfates such as methyl sulfate, and mixtures thereof. Such polymers are further described in EP 3 196 283 A1.

[0075] For similar reasons, polyester-based soil release polymers such as SRA300 supplied by Clariant are also particularly preferred.

[0076] Other useful cleaning polymers are described in U.S. Patent Application Publication No. 20090124528(A1). Detergent compositions may include amphiphilic alkoxylated grease-cleaning polymers, which may have balanced hydrophilic and hydrophobic properties to remove grease particles from fabrics and surfaces. The amphiphilic alkoxylated grease-cleaning polymers may comprise a core structure and multiple alkoxylate groups attached to the core structure. These may include, for example, alkoxylated polyalkyleneimines. Such compounds may include, but are not limited to, ethoxylated polyethyleneimine, ethoxylated hexamethylenediamine, and their sulfated versions. Polypropoxylated derivatives may also be included. A wide variety of amines and polyalkyleneimines can be alkoxylated to various degrees. A useful example is a 600 g / mole polyethyleneimine core ethoxylated to 20 EO groups per NH, available from BASF. The alkoxylated polyalkyleneimine may have an inner polyethylene oxide block and an outer polypropylene oxide block. The detergent composition 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 cleaning polymer.

[0077] Polymeric Deposition Aid: The laundry detergent compositions may comprise from 0.1% to 7.0%, more preferably from 0.2% to 3.0%, of a polymeric deposition aid. As used herein, "polymeric deposition aid" refers to any cationic polymer or combination of cationic polymers that significantly enhances the deposition of fabric care benefit agents onto fabrics during laundering. Suitable polymeric deposition aids include cationic polysaccharides and / or copolymers, with cationic polysaccharides being preferred. The cationic polymer can also be selected from the group consisting of poly(diallyldimethylammonium chloride / co-acrylic acid), poly(acrylamide-methacrylamidopropyltrimethylammonium chloride), poly(acrylamide-methacrylamidopropyltrimethylammonium chloride / co-acrylic acid), poly(acrylamide-co-diallyldimethylammonium chloride / co-acrylic acid), poly(acrylamide-co-N,N,N-trimethylaminoethyl acrylate), poly(diallyldimethylammonium chloride / co-vinyl alcohol), poly(diallyldimethylammonium chloride / acrylamide), and mixtures thereof. The diallyldimethylammonium chloride and co-acrylic acid monomers can be present in a molar ratio of 50:50 to 90:10, preferably 55:45 to 85:15, and more preferably 60:40 to 70:30. For poly(diallyldimethylammonium chloride / co-acrylic acid), the preferred ratio of diallyldimethylammonium chloride to acrylic acid is about 90:10 to 50:50. A preferred cationic polymer is poly(diallyldimethylammonium chloride / co-acrylic acid) copolymer with a molar ratio of 65 / 35 and a molecular weight of about 450,000. Poly(diallyldimethylammonium chloride / co-acrylic acid) copolymer may be further described by the International Cosmetic Ingredient Nomenclature designation Polyquaternium-22 or PQ22. Poly(diallyldimethylammonium chloride / acrylamide) may be further described by the International Cosmetic Ingredient Nomenclature designation Polyquaternium-7 or PQ7.

[0078] As used herein, "fabric care benefit agent" refers to any material capable of providing a fabric care benefit. Non-limiting examples of fabric care benefit agents include silicone derivatives, oily sugar derivatives, dispersible polyolefins, polymer latexes, cationic surfactants, and combinations thereof. Preferably, the deposition aid is a cationic or amphoteric polymer. The cationic charge density of the polymer preferably ranges from 0.05 meq / g to 6.0 meq / g. The charge density is calculated by dividing the net charge per repeat unit by the molecular weight of the repeat unit. In one embodiment, the charge density varies from 0.1 meq / g to 3.0 meq / g. The positive charge can be present on the main chain of the polymer or on the side chains of the polymer.

[0079] Organic builders and / or chelating agents: The laundry detergent compositions may comprise from 0.6% to 10% by weight, preferably from 2.0% to 7.0% by weight of one or more organic builders and / or chelating agents. Suitable organic builders and / or chelating agents include MEA citrate, citric acid, aminoalkylene poly(alkylene phosphonic acids), alkali metal ethane 1-hydroxydiphosphonic acids, 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 diamine disuccinic acid (EDDS), ethylene diamine tetraacetic acid (EDTA), hydroxyethylethylenediamine triacetic acid (hydroxyethylethylenediamine triacetic acid ... triacetate (HEDTA), nitrilotriacetate (NTA), methylglycinediacetate (MGDA), iminodisuccinate (IDS), hydroxyethyliminodisuccinate (HIDS), hydroxyethyliminodiacetate (HEIDA), glycine diacetate (GLDA), diethylene triamine pentaacetic acid (DTPA), catechol sulfonates such as Tiron™, and mixtures thereof.

[0080] Enzyme stabilizers: Enzymes can be stabilized using any known stabilizer system, such as calcium and / or magnesium compounds, boron compounds and substituted boric acids, aromatic boric acid esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., certain esters, dialkyl glycol ethers, alcohols, or alcohol alkoxylates], alkyl ether carboxylates 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 copolymers and PEG; lignin compounds, polyamide oligomers, glycolic acid or its salts; polyhexamethylene biguanide or N,N-bis-3-amino-propyl-dodecylamine or salts; and mixtures thereof.

[0081] Hueing Dyes: The detergent composition may also include fabric hueing agents (sometimes called shading, bluing, or whitening agents). Typically, hueing agents impart a blue or purple hue to fabrics. Hueing agents can be used alone or in combination to create specific shades and / or tint different types of fabrics. This can be achieved, for example, by mixing red and green-blue dyes to produce a blue or purple hue. The hueing agent can be selected from any known chemical class of dyes, including, but not limited to, acridines, anthraquinones (including polycyclic quinones), azines, azos including metallated azos (e.g., monoazos, disazos, trisazos, tetrakisazos, polyazos), benzodifurans and benzodifuranones, carotenoids, coumarins, cyanines, diazahemicyanines, diphenylmethanes, formasans, hemicyanines, indigoids, methanes, naphthalimides, naphthoquinones, nitro and nitroso, oxazines, phthalocyanines, pyrazoles, stilbenes, styryls, triarylmethanes, triphenylmethanes, xanthenes, and mixtures thereof.

[0082] Optical Brightener: The detergent composition may contain 0.005% to 2.0% by weight, preferably 0.01% to 0.1% by weight, of a fluorescent agent (optical brightener), based on the total weight of the detergent composition. 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, e.g., sodium salts. Preferred classes of fluorescent agents are distyrylbiphenyl compounds, e.g., Tinopal® CBS-X, diaminestilbene disulfonic acid compounds, e.g., Tinopal® DMS pure Xtra and Blankophor® HRH, and pyrazoline compounds, e.g., Blankphore® SN. Preferred fluorescent agents are 2(4-styryl-3-sulfophenyl)-2H-naphthol[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′ disulfonate disodium, 4,4′-bis{[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]amino}stilbene-2-2′ disulfonate disodium, and 4,4′-bis(2-sulfostyryl)biphenyl disodium.

[0083] Hydrotrope: The detergent composition may contain 0 to 30 wt. %, preferably 0.5 to 5 wt. %, more preferably 1.0 to 3.0 wt. % of a hydrotrope, based on the total weight of the detergent composition. The hydrotrope can prevent liquid crystal formation. Therefore, the addition of a hydrotrope contributes to the transparency / transparency of the composition. Suitable hydrotropes include, but are not limited to, urea, salts of benzenesulfonate, toluenesulfonate, xylenesulfonate, or cumenesulfonate. Preferably, to provide optimal performance, the hydrotrope is selected from the group consisting of propylene glycol, xylenesulfonate, ethanol, and urea.

[0084] Non-Free Perfume Ingredients: The composition may also include non-free fragrance ingredients such as fragrance capsules, pro-fragrances, and mixtures thereof, preferably fragrance capsules such as those described below. The composition may include fragrance capsules at a concentration of 0.05% to 5.0%, preferably 0.1% to 3.0%, more preferably 0.1% to 1.5% by weight of the composition.

[0085] Particles: The composition may also comprise particles, particularly if the composition further comprises a structuring agent or thickener. The composition may comprise 0.02% to 10% by weight, preferably 0.1% to 4.0% by weight, more preferably 0.25% to 2.5% by weight of particles, based on the total weight of the composition. Such particles include beads, pearlescent agents, capsules, and mixtures thereof.

[0086] Suitable capsules are typically formed by at least partially, preferably completely, surrounding a benefit agent with a wall material. Preferably, the capsule is a perfume capsule, and the benefit agent comprises one or more perfume raw materials. The capsule wall material may comprise melamine, polyacrylamide, silicone, silica, polystyrene, polyurea, polyurethane, polyacrylate-based materials, polyacrylic acid ester-based materials, gelatin, styrene maleic anhydride, polyamide, aromatic alcohol, polyvinyl alcohol, resorcinol-based materials, polyisocyanate-based materials, acetals (such as 1,3,5-triol-benzene-glutaraldehyde and 1,3,5-triol-benzenemelamine), starch, cellulose acetate phthalate, and mixtures thereof. Preferably, the capsule wall comprises melamine and / or polyacrylate-based materials. The perfume capsule may be coated with a deposition aid, a cationic polymer, a nonionic polymer, an anionic polymer, or a mixture thereof. Preferably, the perfume capsules have a volume weighted mean particle size of from 0.1 microns to 100 microns, preferably from 0.5 microns to 60 microns. In particular, when the composition includes capsules having a shell formed at least in part from formaldehyde, the composition may further include one or more formaldehyde scavengers.

[0087] Suitable pro-perfumes include Michael adducts (e.g., β-aminoketones), aromatic or non-aromatic imines (Schiff bases), oxazolidines, β-ketoesters, and orthoesters. Suitable pro-perfumes also include compounds containing one or more β-oxy or β-thiocarbonyl moieties capable of releasing perfume ingredients, such as α,β-unsaturated ketones, aldehydes, or carboxylic acid esters. Certain silicon-containing compounds, such as silicate esters, polysilicates, and certain silicone polymers, may be suitable pro-perfumes. Suitable pro-perfumes also include reaction products between polymeric amines and perfume ingredients such as perfume aldehydes and ketones. Non-limiting examples of suitable polymeric amines include polymers based on polyalkylimines, such as polyethyleneimine (PEI) or polyvinylamine (PVAm). Non-limiting examples of monomeric (non-polymeric) amines include hydroxylamines, such as aminoethanol and its alkyl-substituted derivatives, and aromatic amines, such as anthranilates. The composition may contain 0.05% to 20%, preferably 0.1% to 10%, more preferably 0.2% to 2.0% of free fragrance. Bleaching Agent: A bleaching component is particularly preferred in powder laundry detergent compositions. Suitable bleaching agents include a hydrogen peroxide source, a bleach activator, a bleach catalyst, a preformed peracid, and any combination thereof. Particularly suitable bleaching agents include a combination of a hydrogen peroxide source with a bleach activator and / or a bleach catalyst. Suitable hydrogen peroxide sources include sodium perborate and / or sodium percarbonate. Suitable bleach activators include tetraacetylethylenediamine and / or alkyloxybenzenesulfonates.

[0088] The composition may also include a bleach catalyst. Suitable bleach catalysts include oxaziridinium bleach catalysts, transition metal bleach catalysts, particularly manganese and iron bleach catalysts. Suitable bleach catalysts have the following general formula:

[0089] [ka] [In the formula, R 13 is selected from the group consisting of 2-ethylhexyl, 2-propylheptyl, 2-butyloctyl, 2-pentylnonyl, 2-hexyldecyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl, iso-nonyl, iso-decyl, iso-tridecyl, and iso-pentadecyl.

[0090] Suitable preformed peracids include phthalimido-peroxycaproic acid.

[0091] In the case of liquid laundry detergent compositions, the laundry detergent composition is preferably bleach-free.

[0092] How to wash fabric: The laundry detergent compositions of the present invention are used for laundering fabrics. In particular, laundry detergent compositions containing vinylpyrrolidone polymers can be used to improve the deposition of perfume ingredients, especially the perfume ingredients described herein.

[0093] The compositions of the present invention are particularly effective in improving the deposition of such perfume ingredients on fabrics containing synthetic fibers, such as polyester. Such fabrics can include or consist of synthetic fibers. Synthetic fibers are man-made or man-made fibers, most of which are made from organic raw materials. Such synthetic fibers are typically polymers.

[0094] In a preferred method and use, the laundry detergent composition can be diluted to provide a wash liquor having a total surfactant concentration of greater than 300 ppm, preferably 400 ppm to 2,500 ppm, more preferably 600 ppm to 1000 ppm. Fabrics are then laundered in the wash liquor and preferably rinsed.

[0095] method: A) pH measurement: Measure the pH at 25 °C using a Santarius PT-10P pH meter equipped with a gel-filled probe (e.g., Toledo probe, part number 52 000 100) calibrated according to the manufacturer's instructions. Measure the pH at a 10% dilution with demineralized water (i.e., 1 part laundry detergent composition to 9 parts demineralized water).

[0096] B) Viscosity measurement method: Measure the viscosity using a TA instruments AR 2000 rheometer using a cone-plate geometry with a diameter of 40 mm and an angle of 1 degree. Measure the viscosity at 20 °C for 3 min at 0.1 s. -1 From the 1200s -1 Measure the viscosity at different shear rates by a logarithmic shear rate sweep up to 0.05 s -1 The low shear viscosity is measured at a continuous shear rate of 1000 rpm.

[0097] C) Calculating logP: To perform the calculations involved in the calculated value test method described herein, the starting information required includes the attributes of each PRM in the perfume being tested, its weight % and mole % as a percentage of that perfume, so that all PRMs in the perfume composition are included in the calculation. Additionally, for each of these PRMs, the molecular structure and the values of the various computationally derived molecular descriptors are also required, as determined according to the test method for generating molecular descriptors described herein.

[0098] Generation of molecular descriptors For each PRM in a fragrance mixture or composition, its molecular structure is used to calculate various molecular descriptors. Molecular structures are determined by graphic molecular structure representations provided by the Chemical Abstract Service ("CAS"), a division of the American Chemical Society (Columbus, Ohio, USA). These molecular structures can be obtained from the CAS Chemical Registry System database by searching the index name or CAS number of each PRM. For PRMs not yet listed in the CAS Chemical Registry System database at the time of testing, other databases or sources may be used to determine their structures. For PRMs that may have multiple isomers, the molecular descriptor calculations are performed using only one isomer representing that PRM. Of all isomers of a given PRM, the isomer selected to represent that PRM is the isomer whose molecular structure is most predominant in terms of wt% in the formulation. The structures of other possible isomers of that PRM are excluded from the calculation. The molecular structure of the most predominant isomer is paired with the total concentration of that PRM, which reflects the presence of all isomers of that PRM.

[0099] Use a molecular editor or molecular drawing software program, such as ChemDraw (CambridgeSoft / PerkinElmer Inc., Waltham, Massachusetts, USA), to recreate a two-dimensional molecular structure representing each PRM. Molecular structures must be represented as neutral species (quaternary nitrogen atoms are allowed) without unlinked fragments (e.g., single structures without counterions). The winMolconn program, described below, can convert any deprotonated functional group to its neutral form by adding the appropriate number of hydrogen atoms, eliminating the need for a counterion.

[0100] For each PRM, a file describing the molecular structure of the PRM is created using molecular drawing software. The file describing the PRM's molecular structure is then sent to the computer software program winMolconn, version 1.0.1.3 (Hall Associates Consulting, Quincy, Massachusetts, USA, www.molconn.com) to derive various molecular descriptors for each PRM. The winMolconn software program then describes the acceptable options for structure representation and file format. These options include either a MACCS SDF format file (i.e., structure data file) or a Simplified Molecular Input Line Entry Specification (i.e., SMILES string structure line representation), which is commonly used within simple text files and often has a ".smi" or ".txt" filename extension. SDF files represent each molecular structure in the form of a multiline record, while the syntax for SMILES structures is a single line of text with no whitespace. A structure name or identifier can be added to the SMILES string by including it on the same line following the SMILES string with a space between them, e.g., C1=CC=CC=C1 benzene.

[0101] The winMolconn software program is used to generate numerous molecular descriptors for each PRM, which are then output in tabular form. The specific molecular descriptors obtained by winMolconn are then used as input (i.e., as variable terms in mathematical equations) for various computer model test methods to calculate values for each PRM, such as: saturated vapor pressure (VP); boiling point (BP); logarithm of the octanol / water partition coefficient (logP); odor detection threshold (ODT); malodor reduction value (MORV); and / or universal malodor reduction value (UNIV). The molecular descriptor labels used in the model test method calculations are the same labels reported by the winMolconn program, and their descriptions and definitions can be found in a list in the winMolconn documentation. The following is a comprehensive description of how to run the winMolconn software program and generate the necessary molecular structure descriptors for each PRM in a composition.

[0102] Calculation of molecular structure descriptors using winMolconn: 1) Assembling the molecular structures of one or more perfume ingredients in the form of a MACCS structural data file, also called an SDF file, or as a SMILES file. 2) Using the winMolconn program, version 1.0.1.3, running on a suitable computer, and using the SDF or SMILES file described above as input, calculate the full complement of molecular descriptors available from this program. The output of a.winMolconn is in the form of an ASCII text file, typically space-delimited, containing, for each structure in the input file, a structure identifier in the first column and respective molecular descriptors in the remaining columns. 3) Using a spreadsheet software program or some other suitable technique, parse the text file into columns. The molecular descriptor labels are found in the first row of the resulting table. 4) Find and extract the descriptor sequences identified by the molecular descriptor labels and corresponding to the required inputs for each model. a. Note that the labels in winMolconn molecular descriptors are case sensitive.

[0103] Calculation of the logarithm of the octanol / water partition coefficient (logP) The logarithm of the octanol / water partition coefficient (logP) is calculated for each PRM in the fragrance mixture being tested. The logP values of individual PRMs are calculated using the Consensus logP Computational Model, version 14.02 (Linux), available from Advanced Chemistry Development Inc. (ACD / Lab) (Toronto, Canada), which yields unitless logP values. The ACD / Labs Consensus logP Computational Model is part of the ACD / Labs model suite.

[0104] D) log P (o / w) Measurement of: logP of fragrance ingredients (n-オクタノール / 水) can be measured using the shake flask method as described below.

[0105] Determination of the partition coefficient should be performed using high-purity analytical-grade n-octanol. Distilled water, preferably double-distilled water, should be used. Measurements should be performed using glass or quartz equipment. For ionic compounds, a buffer solution can be used instead of water, if necessary. Before determining the partition coefficient, the phases of the solvent system are mutually saturated by shaking at the experimental temperature in the range of 20°C to 25°C (preferably 21°C). To do this, it is practical to shake two large stock bottles of high-purity analytical-grade n-octanol or water, each with a sufficient amount of the other solvent, on a mechanical shaker for 24 hours, then leave them long enough for the phases to separate and become saturated.

[0106] The entire volume of the two-phase system should nearly fill the test vessel. This helps prevent material loss due to volatilization. The volume ratio and amounts of substances used are fixed by the minimum amount of test substance required for the analytical procedure and the maximum concentration of either phase, 0.01 mol / L. Three tests are performed: the first uses a 1:1 volume ratio of n-octanol to water, the second divides this ratio by 2, and the third multiplies this ratio by 2 (1:1, 1:2, 2:1). A stock solution is prepared in n-octanol pre-saturated with water. The concentration of this stock solution must be accurately determined before using it to determine the partition coefficient. This solution must be stored under conditions that ensure its stability.

[0107] For each test condition, two sets of test vessels containing precisely measured amounts of the two solvents and the required amount of stock solution should be prepared.

[0108] The n-octanol phase should be measured by volume. The test vessel should be placed in a suitable shaker or shaken by hand. When using centrifuge tubes, the recommended method is to quickly rotate the tube 180 degrees about its horizontal axis so that any trapped air rises through the two phases. Usually, 50 such rotations are sufficient to establish partition equilibrium. As a precaution, 100 rotations in 5 minutes is recommended.

[0109] If necessary, the mixture should be centrifuged to separate the phases. This should be done in a laboratory centrifuge maintained at room temperature, or if a non-temperature-controlled centrifuge is used, the centrifuge tubes should be equilibrated at the test temperature for at least 1 hour before analysis.

[0110] To determine the partition coefficient, the concentration of the test substance in both phases must be determined. This can be done by taking aliquots of each of the two phases from each test tube for each test condition and analyzing them by the procedure of your choice. The total amount of substance present in both phases must be calculated and compared to the amount of substance initially introduced.

[0111] The aqueous phase should be sampled using a procedure that minimizes the risk of introducing traces of n-octanol. A glass syringe with a removable needle can be used to sample the aqueous phase. The syringe should initially be partially filled with air. The air should be gently expelled while inserting the needle through the n-octanol layer. A sufficient amount of the aqueous phase is aspirated into the syringe. The syringe is quickly removed from the solution and the needle is removed. The contents of the syringe can then be used as the aqueous sample. The concentrations of the two separated phases should preferably be determined by a substance-specific method. Examples of analytical methods that may be suitable are photometry, gas chromatography, and high-performance liquid chromatography (HPLC), with HPLC being preferred.

[0112] When using HPLC, use a liquid chromatograph equipped with a pulse-free pump and suitable detection equipment. It is recommended to use an injection valve with an injection loop. The presence of polar groups in the stationary phase can significantly impair the performance of the HPLC column. Therefore, the proportion of polar groups in the stationary phase should be minimized. Commercially available fine-particle reversed-phase packing materials or pre-packed columns can be used. A guard column can be placed between the injection system and the analytical column.

[0113] Prepare the elution solvent using HPLC-grade methanol and HPLC-grade water and degas before use. Isocratic elution should be used. A methanol / water ratio with a minimum water content of 25% should be used. Typically, a 3:1 (v / v) methanol-water mixture is sufficient to elute a compound with a log P of 6 within 1 hour at a flow rate of 1 ml / min. For compounds with a high log P, it may be necessary to shorten the elution time (and that of the reference compound) by reducing the polarity of the mobile phase or the length of the column.

[0114] Substances with very low solubility in n-octanol tend to show anomalously low log Pow values in HPLC, and the peaks for such compounds are sometimes associated with the solvent front. This is most likely due to the fact that the partitioning process is too slow to reach equilibrium in the time it normally takes for HPLC separation. In such cases, reducing the flow rate and / or the methanol / water ratio may be effective in obtaining more reliable values.

[0115] The test and reference compounds must be soluble in the mobile phase at a concentration sufficient to allow detection. Because additives alter the column properties, they can be used in methanol-water mixtures only in exceptional cases. For chromatograms containing additives, it is essential to use separate columns of the same type. If methanol-water is not suitable, other organic solvent-water mixtures can be used, such as ethanol-water or acetonitrile-water.

[0116] The pH of the eluent is important for ionic compounds. It must be within the operating pH range of the column, typically 2-8. Buffering is recommended. Care must be taken to avoid salt precipitation and column degradation, which occurs with some organic phase / buffer mixtures. Column performance can rapidly deteriorate with alkaline mobile phases, so HPLC experiments using silica-based stationary phases at pHs above 8 are not recommended.

[0117] Compounds used for testing or calibration purposes are dissolved in the mobile phase, if possible.

[0118] The average P from all determinations is expressed as its logarithm (base 10) to provide the logP value. [Example]

[0119] The following comparative tests were carried out using laundry detergent composition 1 of the present invention, which contains a PVP / PVI copolymer and a perfume containing a hydrophobic perfume ingredient used in the present invention, and comparative laundry detergent composition A, which has the same composition but does not contain the PVP / PVI copolymer.

[0120] Washing test: 100% polyester fabrics cut into 30x30cm squares were washed in a drum washing machine (Miele 1935) with a total of 3kg of mixed cotton / polycotton load at 40°C on the cotton short setting, with two rinses using a water hardness of 2.67mmol / L Ca (15gpg). A 55ml dose of each detergent was added to a dosing cup and placed inside the washing machine. After the wash cycle was completed, the entire load was tumbled for approximately 1 hour (using a Miele Novotronic, type: TD7634).

[0121] [Table 1] 1 It is supplied by Tensachem under the trade name TENSAGEX EOC970B 2 It is supplied by Sasol under the trade name MARLIPAL 1216 / 7 UA P&G 3 It is supplied by BASF under the trade name SOKALAN® HP56K. 4 Polyvinyl acetate-grafted polyethylene oxide copolymer with a polyethylene oxide backbone and multiple polyvinyl acetate side chains, supplied by BASF, Germany

[0122] The compositions of the fragrances used in the comparative tests are shown in Table 2.

[0123] [Table 2] * Used in this invention (bold)

[0124] The laundry was washed and dried four consecutive times. After the fourth cycle, the laundry was dried and the polyester tracer was separated and packed in aluminum foil until the headspace was ready to be analyzed.

[0125] Headspace Analysis: The headspace was analyzed using solid phase mixed extraction (SPME) chromatography using the following procedure. 1. One 4x4cm piece of polyester tracer was transferred to a 25ml headspace vial. 2. The fabric samples were equilibrated at 65°C for 10 minutes. 3. The headspace above the fabric was sampled by SPME (50 / 30 μm DVB / Carboxen / PDMS) for 5 min. 4. The SPME fiber was then thermally desorbed onto a GC. 5. The analytes were analyzed by GC / MS (GC: Agilent 8890 and MS: Agilent 5977B MS) in full scan mode. The total perfume HS response and perfume headspace composition over the tested interval could be determined.

[0126] The results are shown in Table 3 below.

[0127] [Table 3] * Used in this invention (bold)

[0128] In the table above, fragrance ingredients that were not detected in the headspace analysis have been omitted.

[0129] Further examples of compositions of the present invention are shown in Table 4 below.

[0130] [Table 4]

[0131] The compositions of Table 4 may include one of the fragrances shown in Table 5 below.

[0132] [Table 5]

[0133] Dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, 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 liquid laundry detergent composition comprising a surfactant system, a pyrrolidone polymer, and an unencapsulated perfume, the surfactant system comprises a surfactant at a concentration of from 1.0% to 70% by weight of the composition, and the surfactant system comprises an anionic surfactant at a concentration of from 1.4% to 52% by weight of the liquid laundry detergent composition; the vinylpyrrolidone polymer is selected from the group consisting of polyvinylpyrrolidone (PVP), copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI), copolymers of vinylpyrrolidone and vinyl acetate (PVP / VA), and mixtures thereof; A liquid laundry detergent composition, wherein the perfume comprises a hydrophobic perfume ingredient having a LogP of at least 2.5, and the hydrophilic perfume ingredient comprises linalool, ionone beta, lilial, citronellol, citronellyl nitrile, α-pinene, ethyl saffronate, linalyl propionate, allyl amyl glycolate, helbetolide, laevocarbon, phenylethyl dimethyl carbinol, and mixtures thereof. [2] The laundry detergent composition according to [1], wherein the laundry composition comprises the surfactant system at a concentration of 1.0 wt. % to 70 wt. %, preferably 8.0 wt. % to 50 wt. %, more preferably 13 wt. % to 35 wt. %. [3] The laundry detergent composition according to [1] or [2], wherein the surfactant system preferably comprises an anionic surfactant selected from the group consisting of sulfonate surfactants, sulfate surfactants, and mixtures thereof, and more preferably, the anionic surfactant comprises a sulfonate surfactant and a sulfate surfactant. [4] The laundry detergent composition according to [3], wherein the anionic surfactant comprises an alkyl sulfate surfactant, and the alkyl sulfate surfactant has an average degree of ethoxylation of 0.5 to 8.0, preferably 1.0 to 5.0, and more preferably 2.0 to 3.5. [5] The laundry detergent composition of [3], wherein the anionic surfactant comprises an alkyl sulfate surfactant, the alkyl sulfate surfactant having an average degree of ethoxylation of less than 0.5, preferably the alkyl sulfate surfactant comprises a branched alkyl sulfate surfactant, more preferably the branched alkyl sulfate surfactant comprises at least 20% by weight of the alkyl chains of the branched alkyl sulfate surfactant. [6] The laundry detergent composition according to any one of [1] to [5], wherein the pyrrolidone polymer is present at a concentration of 0.01% to 3.0% by weight, preferably 0.05% to 2.0% by weight, and more preferably 0.1% to 1.0% by weight of the composition. [7] The laundry detergent composition according to any one of [1] to [6], wherein the vinylpyrrolidone polymer is selected from the group consisting of a copolymer of vinylpyrrolidone and vinylimidazole (PVP / PVI), a copolymer of vinylpyrrolidone and vinyl acetate (PVP / VA), and a mixture thereof, and is preferably a copolymer of vinylpyrrolidone and vinylimidazole (PVP / PVI). [8] The laundry detergent composition according to any one of [1] to [7], wherein the weight-average molecular weight of the pyrrolidone polymer is 5,000 Da to 1,000,000 Da, preferably 5,000 Da to 50,000 Da, and more preferably 10,000 Da to 20,000 Da. [9] The laundry detergent composition according to any one of [1] to [8], wherein the composition contains free fragrance at a concentration of 0.1% by weight to 5.0% by weight, preferably 0.25% by weight to 3.0% by weight, and more preferably 0.5% by weight to 1.5% by weight of the composition.

[10] The laundry detergent composition according to any one of [1] to [9], wherein the hydrophilic fragrance component comprises linalool, ionone beta, lilial, citronellol, citronellyl nitrile, α-pinene, ethyl saffronate, linalyl propionate, and mixtures thereof, and preferably comprises linalool, ionone beta, lilial, citronellol, and mixtures thereof.

[11] The laundry detergent composition according to any one of [1] to

[10] , wherein the composition contains fragrance capsules in an amount of 0.05% by weight to 5.0% by weight, preferably 0.1% by weight to 3.0% by weight, and more preferably 0.1% by weight to 1.5% by weight of the composition.

[12] The laundry detergent composition according to any one of [1] to

[11] , wherein the composition further comprises a cleaning polymer selected from the group consisting of an amphiphilic alkoxylated grease-cleaning polymer, a muddy soil-cleaning polymer, a soil-release polymer, and a soil-suspending polymer, preferably an amphiphilic alkoxylated grease-cleaning polymer.

[13] The laundry detergent composition according to any one of [1] to

[12] , wherein the pH range of the detergent composition is 6.0 to 8.9, preferably 7 to 8.8.

[14] A unit-dose article comprising the detergent composition according to any one of [1] to

[13] , wherein the detergent composition is encapsulated in a water-soluble or water-dispersible film, and the detergent composition contains less than 20% by weight of water, preferably less than 15% by weight, and more preferably less than 10% by weight of water.

[15] Use of a laundry detergent composition comprising a pyrrolidone polymer to improve the deposition of perfume ingredients on fabrics, including synthetic fibers.

Claims

1. 1. A liquid laundry detergent composition comprising a surfactant system, a vinylpyrrolidone polymer, and an unencapsulated perfume, the surfactant system comprises a surfactant at a level of from 1.0% to 70% by weight of the liquid laundry detergent composition, and the surfactant system comprises an anionic surfactant at a level of from 1.4% to 52% by weight of the liquid laundry detergent composition; the vinylpyrrolidone polymer is a copolymer of vinylpyrrolidone and vinylimidazole (PVP / PVI); the perfume comprises a hydrophobic perfume ingredient having a LogP of at least 2.5, the hydrophobic perfume ingredient comprising citronellol, citronellyl nitrile, α-pinene, ethyl saffronate, linalyl propionate, allyl amyl glycolate, helbetolide, laevocarvone, phenylethyl dimethyl carbinol, and mixtures thereof; the liquid laundry detergent composition comprises the unencapsulated perfume at a concentration of 0.25% to 3.0% by weight; the liquid laundry detergent composition has a pH range of 6.0 to 8.9; A liquid laundry detergent composition wherein the vinylpyrrolidone polymer is present at a level of from 0.05% to 2.0% by weight of the liquid laundry detergent composition.

2. 10. The liquid laundry detergent composition of claim 1, wherein the liquid laundry detergent composition comprises the surfactant system at a concentration of from 8.0% to 50% by weight.

3. 3. The liquid laundry detergent composition of claim 1, wherein the surfactant system comprises an anionic surfactant selected from the group consisting of sulfonate surfactants, sulfate surfactants, and mixtures thereof.

4. 4. The liquid laundry detergent composition of claim 3, wherein the anionic surfactant comprises an alkyl sulfate surfactant, the alkyl sulfate surfactant having an average degree of ethoxylation of from 0.5 to 8.

0.

5. 4. The liquid laundry detergent composition of claim 3, wherein the anionic surfactant comprises an alkyl sulfate surfactant, the alkyl sulfate surfactant having an average degree of ethoxylation less than 0.

5.

6. 10. The liquid laundry detergent composition of claim 1, wherein the vinylpyrrolidone polymer is present at a level of from 0.1% to 1.0% by weight of the liquid laundry detergent composition.

7. 10. The liquid laundry detergent composition of claim 1, wherein the vinylpyrrolidone polymer has a weight average molecular weight of from 5,000 Da to 1,000,000 Da.

8. 10. The liquid laundry detergent composition of claim 1, wherein the liquid laundry detergent composition comprises the unencapsulated perfume at a level of from 0.5% to 1.5%, by weight of the liquid laundry detergent composition.

9. 10. The liquid laundry detergent composition of claim 1, wherein the hydrophobic perfume ingredient comprises citronellol, citronellyl nitrile, alpha-pinene, ethyl saffronate, linalyl propionate, and mixtures thereof.

10. 10. The liquid laundry detergent composition of claim 1, wherein the liquid laundry detergent composition comprises from 0.05% to 5.0% perfume capsules, by weight of the liquid laundry detergent composition.

11. 10. The liquid laundry detergent composition of claim 1, wherein the liquid laundry detergent composition further comprises a cleaning polymer selected from the group consisting of amphiphilic alkoxylated grease cleaning polymers, mud soil cleaning polymers, soil release polymers, and soil suspension polymers.

12. 10. The liquid laundry detergent composition of claim 1, wherein the liquid laundry detergent composition has a pH range of 7 to 8.

8.

13. 10. A unit dose article comprising the liquid laundry detergent composition of claim 1, wherein the liquid laundry detergent composition is encapsulated in a water-soluble or water-dispersible film, and wherein the liquid laundry detergent composition comprises less than 20% by weight of water.

14. 10. Use of the liquid laundry detergent composition of claim 1 to improve the deposition of perfume ingredients on fabrics containing synthetic fibers.

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