Detergent composition

Abstract

To provide a detergent composition that has excellent effects for imparting satisfactory use feeling and touch to hair or skin, satisfactory use feeling in shampoo washing and rinsing, and excellent imparting of satisfactory touch after using conditioner and improvement of an adsorption amount of a conditioning component.SOLUTION: A detergent composition contains: (A) polymer formed by copolymerization in a ratio of hydrophobic monomer by 1 to 30 mass%, hydrophilic monomer by 1 to 80 mass%, cationic monomer expressed in general formula (3) by 1 to 80 mass%, and crosslinkable monomer by 0.01 to 1 mass%; and (B) one or more kinds selected from anionic surfactant and amphoteric surfactant.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a cleanser composition, and more specifically, to a cleanser composition that is excellent in the effect of imparting a good feel and texture to hair and skin, and that is particularly excellent in imparting a good feel to damaged hair from the time of shampooing (lathering, foam quality) to the time of rinsing (fingers combing), and in imparting a good feel (smoothness, combing) after using a conditioner (after drying), and in improving the amount of adsorption of a conditioning component (amount of silicone adsorption). [Background technology]

[0002] Conventionally, cleanser compositions such as shampoos and body shampoos have been formulated with various cleansing ingredients, the main component of which is an anionic surfactant, which has excellent cleansing and foaming properties. However, when these cleansing ingredients are used, although they produce good foam during cleansing, the foam may not be creamy, or the feel after cleansing may be poor due to excessive degreasing of the skin or hair.

[0003] Therefore, the incorporation of various polymers has been investigated with the aim of improving the foam quality during washing and the feel after washing. For example, Patent Document 1 proposes a detergent composition that combines a copolymer of a dialkyldiallylammonium salt and cationic cellulose, which has excellent cleaning properties and conditioning effects, and Patent Document 2 proposes a composition that combines an amphoteric polymer and a cationic polymer, which has excellent cleaning properties and conditioning effects. However, these proposals were unsatisfactory in terms of foaming during use, foam modification and feel, and feel after use. Furthermore, when a conditioner was used after using a detergent containing the above-mentioned cationic polymer as a shampoo, there was a problem in that the conditioning ingredients had low affinity with hair, and sufficient conditioning effect was not obtained.

[0004] Furthermore, Patent Documents 3 and 4 propose cleanser compositions with high conditioning properties that contain a cationic polymer and a silicone compound, but these compositions are unsatisfactory in terms of foaming during use, foam modification, and feel after use. In addition, because the water-soluble silicone compound contained in the cleanser composition is water-soluble, most of it is washed away during rinsing, and the conditioning effect is insufficient, particularly for hair damaged by ultraviolet rays, blow-drying, brushing, washing, coloring, etc. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 1-128914 [Patent Document 2] Special Publication No. 2002-532532 [Patent Document 3] Japanese Patent Application Publication No. 7-277931 [Patent Document 4] Japanese Patent Application Publication No. 7-061914 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention aims to provide a cleanser composition that is excellent in the effect of imparting a good feel and texture to hair and skin, and that is particularly excellent in imparting a good feel to damaged hair from the time of shampooing (lathering, foam quality) to the time of rinsing (fingers running through the hair), and in imparting a good feel (smoothness, combability) after using a conditioner (after drying), and in improving the amount of adsorption of a conditioning component (silicone). [Means for solving the problem]

[0007] As a result of extensive research into solving the above problems, the present inventors have found that (A) the following general formula (1) [ka] (In the formula, R 1is a hydrogen atom or a methyl group, R 2 represents an alkyl group having 1 to 12 carbon atoms.) and general formula (2) [ka] (In the formula, R 3 is a hydrogen atom or a methyl group, n is a number from 1 to 200, R 4 represents a hydrogen atom or a methyl group.) and general formula (3) [ka] (In the formula, R 5 is a hydrogen atom or a methyl group, R 6 is an alkylene group having 1 to 4 carbon atoms, R 7 represents an alkyl group having 1 to 4 carbon atoms, and X represents a halogen atom or an organic anion. and general formula (4) [ka] (In the formula, R 8 and R 9 wherein m is a hydrogen atom or a methyl group, and a number of 0 to 2.) in a proportion of 0.01 to 1 mass % and (B) one or more surfactants selected from anionic surfactants and amphoteric surfactants are found to be excellent in imparting a good feel and texture to hair and skin in use, and in particular, to provide good lathering and foam quality when shampooing hair and good finger-combability when rinsing, and to be excellent in improving the smooth feel and combability of hair after using a conditioner, as well as the adsorption amount of conditioning ingredients, thereby completing the present invention.

[0008] The present invention also provides a detergent composition containing 0.01 to 5 mass % of the component (A) and 1 to 30 mass % of the component (B).

[0009] The present invention also provides a detergent composition containing a cationic polymer (C) other than the above (A).

[0010] The present invention also provides a detergent composition containing 0.01 to 5 mass % of the component (A), 1 to 30 mass % of the component (B), and 0.01 to 3 mass % of the component (C).

[0011] The present invention also provides a detergent composition in which the component (C) is one or more selected from the group consisting of O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride, O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, dimethyldiallylammonium chloride-acrylamide copolymer, and acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer.

[0012] Furthermore, the present invention provides a cleaning composition further comprising (D) an alcohol.

[0013] The present invention also provides a detergent composition in which the component (D) is one or more selected from phenoxyethanol, lower alcohols, and polyhydric alcohols. [Effects of the Invention]

[0014] The cleanser composition of the present invention is excellent in the effect of imparting a good feel and sensation to hair and skin, and is particularly excellent in imparting a good feel to damaged hair from the time of shampooing (lathering, foam quality) to the time of rinsing (ease of running fingers through hair), and in imparting a good feel after using a conditioner (smoothness after drying, ease of combing hair), and in improving the amount of adsorption of conditioning ingredients. DETAILED DESCRIPTION OF THE INVENTION

[0015] The cleaning composition of the present invention will be described below. Examples of the hydrophobic monomer represented by the general formula (1) constituting the polymer of component (A) used in the present invention include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, normal butyl (meth)acrylate, isobutyl (meth)acrylate, tertiary butyl (meth)acrylate, pentyl (meth)acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, octyl (meth)acrylate, ethylhexyl (meth)acrylate, decyl (meth)acrylate, and dodecyl (meth)acrylate. Particularly preferred are methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, and ethylhexyl methacrylate. In the present invention, one or more selected from these hydrophobic monomers can be used.

[0016] Examples of the hydrophilic monomer represented by the general formula (2) include polyethylene glycol (meth)acrylate and methoxypolyethylene glycol (meth)acrylate, in which n is in the range of 1 to 200. Particularly preferred is methoxypolyethylene glycol (meth)acrylate, in which n is in the range of 5 to 120. In the present invention, any one or more selected from these hydrophilic monomers can be used.

[0017] Examples of cationic monomers represented by the general formula (3) include quaternized products of 2-dimethylaminoethyl (meth)acrylate and 2-dimethylaminopropyl (meth)acrylate, where X is a halogen atom or an organic anion. Any quaternized product can be used, as long as it can form a quaternary product. Examples include alkyl halides such as methyl chloride, ethyl chloride, methyl bromide, and methyl iodide, and quaternary ammonium salts quaternized with common quaternizing agents such as dimethyl sulfate, diethyl sulfate, and di-n-propyl sulfate. Among these, quaternized products of dimethylaminoethyl (meth)acrylate are particularly preferred. In the present invention, one or more selected from these cationic group-containing monomers can be used at will.

[0018] The crosslinkable monomer represented by the general formula (4) is ethylene glycol di(meth)acrylate in which m is in the range of 0 to 2, and one or more types selected from these can be used as desired.

[0019] The proportions of (1) hydrophobic monomer, (2) hydrophilic monomer, (3) cationic monomer, and (4) crosslinkable monomer that constitute the polymer are (1) 1 to 30% by mass, (2) 1 to 80% by mass, (3) 1 to 80% by mass, and (4) 0.01 to 1% by mass, preferably (1) 2 to 25% by mass, (2) 5 to 75% by mass, (3) 5 to 75% by mass, and (4) 0.05 to 0.7% by mass, and more preferably (1) 3 to 20% by mass, (2) 10 to 70% by mass, (3) 10 to 70% by mass, and (4) 0.1 to 0.5% by mass. Regarding the proportions of (1) hydrophobic monomer, (2) hydrophilic monomer, (3) cationic monomer, and (4) crosslinkable monomer, if the proportion of (1) hydrophobic monomer is less than 1% by mass, adsorption to hydrophobic healthy hair is insufficient, and if it is 30% by mass or more, aggregation and precipitation of the polymer occur, which is undesirable. (2) If the hydrophilic monomer is less than 1% by mass, it will not be sufficiently adsorbed to hydrophilic damaged hair, and if it is 80% by mass or more, it will be undesirable because it will feel sticky after washing and other unpleasant touches. (3) If the cationic monomer is less than 1% by mass, it will be difficult to form a complex with the surfactant component, resulting in a worsened feel such as a squeaky feeling during rinsing and a reduced conditioning effect after drying, and if it is 80% by mass or more, it will be undesirable because it will feel sticky after washing and other unpleasant touches. (4) If the crosslinking monomer is less than 0.01% by mass, it will be undesirable because it will feel squeaky during rinsing and will be difficult to comb after drying, and if it is 1% by mass or more, it will be undesirable because the polymer will aggregate and precipitate.

[0020] The amount of component (A) in the cleanser composition may be one or a combination of two or more, and the amount is preferably 0.01 to 5 mass%, more preferably 0.05 to 3 mass%, and even more preferably 0.1 to 3 mass%. If the amount is too small, it is difficult to form a complex with the surfactant, and sufficient conditioning effect cannot be obtained, while if the amount is too large, stickiness occurs and the effect is not improved, so it is not preferable.

[0021] The method for producing the polymer of the present invention is not particularly limited, but methods such as aqueous solution polymerization, suspension polymerization, emulsion polymerization, and precipitation polymerization are usually preferred. The polymerization apparatus is also not particularly limited, but a kneader with a lid can be used when the viscosity is high. Examples of aqueous solution polymerization include adding a monomer component soluble in water, a hydrophilic organic solvent, or a mixture of these, removing dissolved oxygen from the system by, for example, replacing the system with an inert gas such as nitrogen or carbon dioxide, and then adding a polymerization initiator to allow the reaction to proceed. The polymerization initiation temperature is usually about 20 to 90°C, preferably room temperature or 40 to 80°C, and the reaction time is about 1 to 20 hours. The concentration of the monomer mixture solution used here is preferably 5 to 50% by mass.

[0022] Representative examples of the hydrophilic organic solvent include lower alcohols such as methanol, ethanol, and 2-propanol; polyhydric alcohols such as propylene glycol, dipropylene glycol, and 1,3-butylene glycol; cyclic ethers such as tetrahydrofuran and dioxane; acetone, acetonitrile, and dimethyl sulfoxide. Among these, ethanol, 2-propanol, propylene glycol, and dipropylene glycol are particularly preferred.

[0023] The polymerization initiator may be a peroxide that dissolves uniformly in water, an organic or inorganic peracid or a salt thereof, or a redox-based azobis compound, either alone or in combination with a reducing agent. Representative examples thereof include 2,2'-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride, 2,2'-azobis(2-methylpropionamidine)dihydrochloride, 2,2'-azobis[2-(5-methyl-2-imidazolin-2-yl)propane]dihydrochloride, sodium persulfate, potassium persulfate, ammonium persulfate, hydrogen peroxide, or a combination of a persulfate with a tertiary amine such as triethylamine, triethanolamine, or dimethylaniline. Among these, 2,2'-azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride, 2,2'-azobis(2-methylpropionamidine) dihydrochloride, 2,2'-azobis[2-(5-methyl-2-imidazolin-2-yl)propane] dihydrochloride, sodium persulfate, potassium persulfate, or ammonium persulfate alone, or a combination of these persulfates with a tertiary amine such as triethylamine, triethanolamine, or dimethylaniline, is particularly preferred.

[0024] The amount of polymerization initiator used is usually 0.01 to 5 mol %, preferably 0.01 to 3 mol %, and particularly preferably 0.01 to 1 mol %, based on the monomer component. Incidentally, if the amount of polymerization initiator used is too high, the desired degree of polymerization is not achieved, and the expected performance cannot be achieved. On the other hand, if the amount is too low, the reaction rate of the polymerization reaction does not increase, resulting in the drawback of an increased amount of residual monomer.

[0025] The anionic surfactant of component (B) used in the present invention includes sulfate ester-based anionic surfactants, amino acid-based anionic surfactants, phosphate ester-based anionic surfactants, carboxylic acid-based anionic surfactants, and sulfonic acid-based anionic surfactants. Specific examples thereof include alkyl sulfates (such as lauryl sulfate), polyoxyalkylene alkyl ether sulfates (such as laureth sulfate), polyoxyalkylene alkyl monoalkylolamide sulfates (such as PEG-3 coconut fatty acid amide MEA sulfate), acyl glycinates (such as lauroyl glycine and cocoyl glycine), acyl sarcosinates (such as lauroyl sarcosine and cocoyl sarcosine), acyl methyl alaninates (such as lauroyl methyl alanine and cocoyl methyl alanine), acyl methyl taurate (such as lauroyl methyl taurate and cocoyl methyl taurate), acyl glutamates (such as lauroyl glutamate and cocoyl glutamate). phosphates, etc.), alkyl phosphate salts (lauryl phosphate, etc.), polyoxyalkylene alkyl ether phosphate salts (laureth phosphate, etc.), higher fatty acid salts (laurate, coconut fatty acid salt, etc.), polyoxyethylene alkyl ether carboxylate salts (laureth acetate, etc.), olefin sulfonates (olefin (C14-16) sulfonates, alkyl sulfosuccinates (lauryl sulfosuccinate disodium, (C12-14) pareth-2Na sulfosuccinate, etc.), alkyl ethyl ester sulfonates (lauroyl isethionate, cocoyl isethionate, etc.), among which alkyl groups having 8 to 18 carbon atoms are preferred, and alkyl groups having 10 to 16 carbon atoms are particularly preferred. Among these, laureth sulfate, cocoyl methyl taurate, lauroyl methyl alanine, cocoyl sarcosine, and higher fatty acid salts are particularly preferred.

[0026] Examples of amphoteric surfactants include alkyl betaines, alkylamidopropyl betaines, alkylamine oxides, alkylhydroxysulfobetaines, and amino acid amphoteric surfactants (imidazoline betaines). Specific examples include laurylmethylaminoacetic acid betaine (lauryl betaine), coconut oil alkyl betaine (cocobetaine), lauric acid amidopropyl betaine (lauramidopropyl betaine), coconut oil fatty acid amidopropyl betaine (cocamidopropyl betaine), palm kernel oil fatty acid amidopropyl betaine, N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine sodium (sodium lauroamphoacetate), N-cocoyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine sodium (sodium cocoamphoacetate), laurylhydroxysulfobetaine (lauryl hydrochloride). Examples of such surfactants include coconut oil alkyl hydroxysulfobetaine (coco hydroxysultaine), lauric acid amidopropyl dimethylaminoacetic acid hydroxysulfobetaine (lauramidopropyl hydroxysultaine), coconut oil fatty acid amidopropyl dimethylaminoacetic acid hydroxysulfobetaine (cocamidopropyl hydroxysultaine), palm kernel oil fatty acid amidopropyl hydroxysulfobetaine, lauryl dimethylamine oxide (auramine oxide), and coconut oil alkyl dimethylamine oxide (cocoamine oxide), with cocamidopropyl betaine and sodium lauroamphoacetate being particularly preferred. In the present invention, one or more surfactants selected from these anionic surfactants and / or amphoteric surfactants can be used at will.

[0027] The amount of component (B) in the detergent composition is not particularly limited, but is preferably 1 to 40% by mass, more preferably 5 to 30% by mass. If the amount of component (B) is too high, foaming will be improved but the conditioning effect (e.g., feel during use and finish after washing) will be insufficient. If the amount is too low, the functions of the detergent composition (e.g., foaming during washing and cleaning effect) will not be obtained, which is undesirable.

[0028] Examples of cationic polymers other than (A) of component (C) used in the present invention include cationically modified cellulose ether derivatives, cationically modified natural polysaccharide derivatives, and dimethyldiallylammonium chloride derivatives, and specific examples include O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride, O-[2-hydroxy-3-(lauryldimethylammonio)propyl]hydroxyethylcellulose chloride, O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, polydimethyldimethylenepyrrolidinium chloride solution, dimethyldiallylammonium chloride-acrylamide copolymer, dimethyldiallylammonium chloride-acrylic acid copolymer, and acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer. Among these, O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride, O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, dimethyldiallylammonium chloride-acrylamide copolymer, and acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer are particularly suitable. In the present invention, one or more selected from these cationic polymers can be used at will.

[0029] The amount of component (C) in the cleanser composition is 0.01 to 3 mass%, preferably 0.05 to 1 mass%, and more preferably 0.05 to 0.5 mass%. By keeping component (C) in this range, good lathering, good lather quality, a sticky feeling on the hair when rinsing, and a moist feeling on the skin after towel drying can be obtained, resulting in good usability.

[0030] The polyhydric alcohols of component (D) used in the present invention include phenoxyethanol, lower alcohols, and polyhydric alcohols. Specific examples of lower alcohols include monohydric alcohols with 5 or fewer carbon atoms, such as ethanol and isopropanol. Specific examples of polyhydric alcohols include alkylene glycols such as ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, and 1,3-butylene glycol; polyalkylene glycols such as polyethylene glycol and polypropylene glycol; glycerols such as glycerol, diglycerol, triglycerol, pentaglycerol, and decaglycerol; and sugars such as glucose, maltose, maltitol, sucrose, mannitol, and sorbitol. Among these, phenoxyethanol, ethanol, glycerol, dipropylene glycol, and sorbitol are particularly preferred. In the present invention, one or more selected from these alcohols can be used at will.

[0031] The amount of component (D) in the cleanser composition is usually 0.5 to 40% by mass, preferably 1 to 35% by mass, and more preferably 1 to 30% by mass. By keeping component (D) in this range, a moist feeling after drying is obtained, resulting in a good feel when used.

[0032] The detergent composition of the present invention may contain other components that are commonly used in detergent compositions, provided that the effects of the present invention are not impaired. Specific examples of such other components include surfactants, oils, pearlizing agents, water-soluble polymers, colorants, fragrances, moisturizing agents, preservatives, antioxidants, antioxidant assistants, ultraviolet absorbers, resins, medicinal agents, and powders. Specifically, the surfactant may be one that is normally used in detergent compositions, and is appropriately selected depending on the purpose of use, the required functions, and the like. For example, nonionic surfactants include sorbitan fatty acid esters such as sorbitan monostearate and sorbitan sesquioleate, alkylene glycol fatty acid esters such as diethylene glycol laurate, propylene glycol laurate, ethylene glycol monooleate and ethylene glycol distearate, hydrogenated castor oil derivatives, glycerin alkyl ethers, polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan monostearate, polyoxyethylene sorbit fatty acid esters such as polyoxyethylene sorbit monolaurate, polyoxyethylene glycerin Examples of suitable surfactants include polyoxyethylene glycerin fatty acid esters such as polyethylene glycol monoisostearate, polyoxyethylene glycerin fatty acid esters such as polyethylene glycol monooleate and polyoxyethylene distearate, polyoxyethylene alkyl ethers such as polyoxyethylene octyldodecyl ether, polyoxyethylene alkylphenyl ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene-polyoxypropylene alkyl ethers, Pluronic® surfactants, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil derivatives, sugars such as sugar esters, sugar ethers, and sugar amides, and alkyl glycosides. Examples of suitable semi-polar surfactants include lauryl dimethylamine oxide (lauramine oxide). Commercially available surfactants can be used as they are, and the amount blended is usually preferably 0 to 10% by mass.

[0033] Examples of oils include higher alcohols, silicone oils, olive oil, jojoba oil, liquid paraffin, and fatty acid alkyl ester oils. Among these, the incorporation of silicone oils and / or higher alcohols is particularly effective for achieving the objectives of the present invention, as it improves the dry feeling after drying. Nonvolatile polydimethylsiloxanes are preferably used as silicone oils. Higher alcohols generally refer to alcohols with 8 or more carbon atoms, but it is preferable to use alcohols with 8 to 22 carbon atoms, and it is more preferable to use cetyl alcohol (cetanol) or stearyl alcohol. Commercially available products of these can be used as they are, and the amount blended is usually preferably 0.1 to 3% by mass.

[0034] Examples of pearlizing agents include fatty acid ethylene glycols such as ethylene glycol distearate (glycol distearate), and examples of suspending agents include polystyrene emulsions. These commercially available products can be used as is, and the blending amount is usually preferably 0.1 to 2% by mass. Examples of thickeners include alkylene glycol laurates such as propylene glycol laurate (PG laurate), butylene glycol laurate (BG laurate), and diethylene glycol laurate (PEG-2 laurate), and fatty acid ethanolamides such as lauric acid monoethanolamide (lauramide MEA), coconut oil fatty acid diethanolamide (cocamide DEA), coconut oil fatty acid N-methyl monoethanolamide (cocamide methyl MEA), and polyoxypropylene coconut oil fatty acid monoisopropanolamide (1P.O.) (PPG-2 cocamide). These commercially available products can be used as is, and the blending amount is usually preferably 0.1 to 5% by mass.

[0035] Examples of water-soluble polymers include methyl cellulose and hydroxymethyl cellulose. Examples of anionic polymers include acrylic acid derivatives (polyacrylic acid and its salts, acrylic acid-acrylamide-ethyl acrylate copolymers and their salts, etc.), methacrylic acid derivatives, and crotonic acid derivatives. Examples of nonionic polymers include acrylic acid derivatives (hydroxyethyl acrylate-methoxyethyl acrylate copolymers, polyacrylamide, etc.) and vinylpyrrolidone derivatives (polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymers, etc.). The blending amount is preferably 0.1 to 1% by mass.

[0036] Other ingredients include natural extracts of plants and animals and their derivatives, organic acids such as citric acid and lactic acid, inorganic salts such as sodium chloride, amino acids (glutamic acid or its salts, arginine or its salts, glycine, etc.), solubilizers (ethanol, isopropanol, butanol, etc.), polymers such as hyaluronic acid, antioxidants, UV absorbers, disinfectants, preservatives, chelating agents, fragrances, colorants, higher fatty acids, thickeners, sequestering agents (edetate, etc.), pH adjusters, foam enhancers, etc., which can be appropriately blended within a range that does not impair the effects of the present invention.

[0037] The cleanser composition of the present invention means any cleanser composition to be used on skin or hair, and broadly includes, for example, so-called cleansers such as shampoos, body shampoos, etc., and so-called hair treatment agents such as rinses, conditioners, treatments, hair packs, hair sprays, hair foams, styling agents, etc. There are no limitations on the applications of the cleanser composition, but it is particularly effective as a cleanser for shampoos, body shampoos, etc. Furthermore, the manner of use of the cleanser composition includes those in which the composition is applied to the skin, hair, etc., thoroughly blended into the entire hair, and then rinsed off (rinsed), and those in which the composition is not rinsed off. [Example]

[0038] The present invention will now be described with reference to examples, but the present invention is not limited to these examples. The contents are in mass % and indicate the pure content of the components contained.

[0039] Synthesis Example (Production of Polymer 1) 22.5 g of methyl methacrylate (MMA), 82 g of methoxypolyethylene glycol methacrylate (PME400) with 9 moles of ethylene oxide added, 45 g of 2-trimethylammonium ethyl methacrylate chloride (TMAEMC), 0.5 g of ethylene glycol dimethacrylate (EGDMA), and 600 g of a water-ethanol mixed solvent (water:ethanol = 90:10 mass ratio) were placed in a 1 L glass flask and mixed together. The contents were then purged with nitrogen. Under a nitrogen atmosphere, the mixture was gradually heated to 50 °C in an oil bath with stirring. 0.5 g of 2,2'-azobis(2-methylpropionamidine dihydrochloride) was added to this polymerization composition to initiate polymerization. After 10 hours of reaction at 45 °C to 55 °C, the mixture was cooled to obtain Polymer 1.

[0040] Table 1 shows the constituent monomer ratios of polymers produced in the same manner as polymer 1 above and comparative polymers used for comparison.

[0041] [Table 1]

[0042] Next, using the polymers shown in Table 1 above, the following test method 1 (feel during use when washing with shampoo and feel after using conditioner (after drying)), test method 2 (measurement of foaming power of shampoo), test method 3 (measurement of combing ability after using conditioner (after drying)), and test method 4 (measurement of amount of adsorption of conditioning ingredient (silicone) after using conditioner (after drying)) were carried out. The results are shown in Tables 2 and 3.

[0043] The test methods used in the present examples are as follows.

[0044] Test method 1 (feeling when shampooing, rinsing, and feeling after using conditioner (after drying)) <Preparing hair shampoo> Hair shampoos having the compositions shown in Tables 2 and 3, Examples 1 to 10 and Comparative Examples 1 to 5 were prepared by conventional methods. Note that the contents in the following Examples and Comparative Examples are all in mass % and represent the pure contents of the components contained. <Preparing hair conditioner> A hair conditioner having the following composition was prepared in a conventional manner and used in the pretreatment described below. All contents are in % by mass and indicate the pure content of the ingredients. Stearyltrimonium Chloride 1.5 Stearyl Alcohol 5.0 Dimethicone (※1) 7.0 Lactic acid (pH4~5) appropriate amount Remaining purified water (*1) Dimethicone: DOWSIL BY22-055 manufactured by Dow Toray Chemical Co., Ltd. Emulsion <Feelings when shampooing, rinsing, and after using conditioner (after drying)> Damaged hair bundles (10 g, 30 cm long) that had been bleached from healthy black hair were washed with a 10% sodium laureth sulfate solution and dried overnight at 20°C and 50% humidity. Next, 1 g of hair shampoo was applied, washed for 30 seconds, and then rinsed. Next, 1 g of hair conditioner was applied, rinsed, towel-dried, and then dried with a hair dryer. The feel during shampoo washing (foaming, foam quality), the feel during rinsing (ease of running fingers through the hair), and the feel after using the conditioner (after drying) (smoothness) were compared and evaluated by 10 expert panelists using the following criteria. ◎: If more than 9 people answered "good" ○: If 6 to 8 people answered "yes" △: If 3 to 5 people answered "good" ×: If two or fewer people answered "yes"

[0045] Test method 2 (measuring shampoo foaming power) A sample solution of 600 ml was prepared by diluting the hair shampoo 50 times with purified water, and after adjusting the temperature to 40°C, the amount of foam was measured immediately after stirring and mixing in a juice mixer for 30 seconds, and evaluated according to the following criteria. ◎: Foam volume 1200ml or more 〇: Foam volume 1150ml or more but less than 1200ml △: Foam volume 1100ml or more but less than 1150ml ×: Foam volume less than 1100ml

[0046] Test method 3 (measurement of combability after using conditioner (after drying)) To evaluate the combability of hair, the dynamic friction coefficient of the hair was measured. A lower dynamic friction coefficient indicates less catching during brushing and better combability. <Pretreatment> To measure the coefficient of dynamic friction, damaged hair bundles (10 g, 30 cm long) made by bleaching healthy black hair were washed with a 10% sodium laureth sulfate solution and dried overnight at 20°C and 50% humidity. Next, the damaged hair bundles were immersed in a test solution prepared by diluting 10 g of hair shampoo 7 times at 40°C for 20 minutes, rinsed with running water at 40°C, and then immersed in a test solution prepared by diluting 20 g of hair conditioner 3 times at 40°C for 20 minutes, rinsed with running water at 40°C, and dried overnight at 20°C and 50% humidity to prepare the measurement sample. A damaged hair tress treated in the same manner but without using hair shampoo served as a blank. <Measurement of dynamic friction coefficient> The coefficient of dynamic friction was measured using a friction tester (Handy Lab Tester TL701) manufactured by Trinity Lab. The contacts were attached to a resin comb with a comb holder, and the hair was hung vertically with the roots facing up, and the comb was passed from the roots to the tips of the hair to measure. 20 measurements were taken, and the average was taken as the coefficient of dynamic friction. The reduction rate from the blank measured at the same time was calculated as follows: Decrease rate=(COFB−COFS) / COFB COFB: Coefficient of kinetic friction of the blank COFM: Coefficient of kinetic friction of the sample The evaluation criteria for combability of hair were set as follows: ◎: Reduction rate of 30% or more ○: Decrease rate is 20% or more but less than 30% △: Decrease rate 10% or more but less than 20% ×: Reduction rate less than 10%

[0047] Test method 4 (measurement of the amount of conditioning ingredient (silicone) adsorbed after using conditioner (after drying)) To compare the amount of silicone adsorbed to the hair surface, we focused on the silicon atoms derived from the silicone contained in the conditioner out of all the elements on the hair surface and measured the amount of silicon atoms on the hair surface using X-ray analysis. The higher the silicon atom weight, the greater the amount of silicone adsorbed. <Pretreatment> To measure the coefficient of dynamic friction, damaged hair bundles (10 g, 30 cm long) made by bleaching healthy black hair were washed with a 10% sodium laureth sulfate solution and dried overnight at 20°C and 50% humidity. Next, the damaged hair bundles were immersed in a test solution prepared by diluting 10 g of hair shampoo 7 times at 40°C for 20 minutes, rinsed with running water at 40°C, and then immersed in a test solution prepared by diluting 20 g of hair conditioner 3 times at 40°C for 20 minutes, rinsed with running water at 40°C, and dried overnight at 20°C and 50% humidity to prepare the measurement sample. A damaged hair tress treated in the same manner but without using hair shampoo served as a blank. <Measurement of silicone adsorption amount> The amount of silicone adsorption was measured using a Hitachi tabletop microscope (Miniscope TM3030Plus) equipped with an energy dispersive X-ray analyzer, with the observation mode set to backscattered electrons, standard, and a magnification of 2500. Ten measurements were taken, and the average value was taken as the amount of silicon atom adsorption. The rate of increase from the blank measured at the same time was calculated as follows: Growth rate = (SiS-SiB) / SiB SiB: silicon atom adsorption amount of blank SiS: silicon atom adsorption amount of the sample The evaluation criteria for the amount of silicone adsorption were set as follows: ◎: Increase rate of 150% or more ○: Increase rate is 100% or more but less than 150% △: Increase rate is 50% or more but less than 100% ×: Increase rate less than 50%

[0048] [Table 2]

[0049] [Table 3]

[0050] Next, test method 5 (feelings during use during washing and rinsing and feel after drying) was carried out using the polymers shown in Table 1 above, and the results are shown in Table 4.

[0051] Test method 5 (feeling when washing, rinsing and feeling after drying) <Preparation of skin cleanser> Skin cleansing agents having the compositions shown in Table 4, Examples 11 to 15 and Comparative Examples 6 and 7, were prepared by standard methods. Note that all contents in the following Examples and Comparative Examples are in mass % and indicate the pure content of the contained components. The contents are in mass %. <Skin cleanser feel when washing, rinsing, and after drying> After wetting both hands with water, 1 ml of the skin cleanser composition was taken into the hands and rubbed together for 10 seconds. The feel during cleansing (foaming during cleansing, foam quality), the feel during rinsing (smoothness), and the feel of the hands after towel drying and the feel after drying (moist feeling) were evaluated sensorily by 10 expert panelists according to the following criteria. ◎: If more than 9 people answered "good" ○: If 6 to 8 people answered "yes" △: If 3 to 5 people answered "good" ×: If two or fewer people answered "yes"

[0052] [Table 4]

[0053] As is clear from Examples 1 to 10 and Comparative Examples 1 to 5, the cleanser composition of the present invention exhibited good usability from when washing hair (foaming, foam quality) to when rinsing (fingers combing), and also good feel (smoothness, combing) after using a conditioner (after drying), and exhibited good performance in improving the amount of adsorption of the conditioning component (silicone).

[0054] Furthermore, Examples 11 to 15 and Comparative Examples 6 and 7 showed that the cleanser compositions of the present invention were excellent in providing a good feel during skin cleansing (foaming, foam quality) and rinsing (smoothness) and a good feel after drying (moisturized feeling).

[0055] As described above, the present invention can provide a cleanser composition that is excellent in the effect of imparting a good feel and texture to hair and skin, and that is particularly excellent in imparting a good feel to damaged hair from the time of shampooing (lathering, foam quality) to the time of rinsing (feeling good with fingers), and in imparting a good feel (smoothness, combability) after using a conditioner (after drying), and in improving the amount of adsorption of a conditioning component (silicone).

Claims

1. (A) a compound represented by the following general formula (1): 【Chemical 1】 (In the formula, R １ is a hydrogen atom or a methyl group, R ２ represents an alkyl group having 1 to 12 carbon atoms.) and general formula (2) 【Chemistry 2】 (In the formula, R ３ is a hydrogen atom or a methyl group, n is a number from 1 to 200, R ４ represents a hydrogen atom or a methyl group.) and general formula (3) 【Chemistry 3】 (In the formula, R ５ is a hydrogen atom or a methyl group, R ６ is an alkylene group having 1 to 4 carbon atoms, R ７ represents an alkyl group having 1 to 4 carbon atoms, and X represents a halogen atom or an organic anion, and general formula (4) 【Chemistry 4】 (In the formula, R ８ and R ９ a hydrogen atom or a methyl group, and m represents a number of 0 to 2.) in a proportion of 0.01 to 1 mass %; (B) one or more surfactants selected from anionic surfactants and amphoteric surfactants; A cleaning composition comprising:

2. 2. The detergent composition according to claim 1, further comprising a cationic polymer (C) other than said (A).

3. 3. The cleaning composition according to claim 2, wherein the component (C) is one or more selected from the group consisting of O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride, O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, dimethyldiallylammonium chloride-acrylamide copolymer, and acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer.

4. 4. The cleaning agent composition according to claim 2, wherein the cleaning agent composition contains 0.01 to 5 mass% of the component (A), 1 to 40 mass% of the component (B), and 0.01 to 3 mass% of the component (C).

5. The cleaning composition according to claim 1 or 2, further comprising (D) an alcohol.

6. 6. The cleaning composition according to claim 5, wherein the component (D) is one or more selected from the group consisting of phenoxyethanol, lower alcohols, and polyhydric alcohols.

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