Hair cosmetic composition

Abstract

The present invention provides a composition for hair cosmetics capable of suppressing a decrease in conditioning ability when a tertiary amino group-containing compound is used.SOLUTION: The composition for hair cosmetics comprises a carboxylic acid-based polymer having a weight-average molecular weight of 100,000 or more and 8 million or less and a tertiary amino group-containing compound having a molecular weight of 1,000 or less.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair cosmetic composition, and further to a hair conditioning composition containing the hair cosmetic composition. [Background technology]

[0002] BACKGROUND ART In personal care compositions such as hair conditioning compositions, various efforts have been made to improve the feel when used. For example, Patent Document 1 describes that a hair cosmetic composition containing one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers, and specific amounts of an anionic polymer and a modified silicone provides a hair cosmetic composition that has a good feel when applied to hair, can suppress hair frizz under high humidity conditions, and is highly stable. Furthermore, Patent Document 2 describes a hair cosmetic composition containing (A) diethyl sebacate, (B) dimethylpolysiloxane having a kinematic viscosity of 5 to 10,000 cSt at 25°C, (C) diglyceryl adipate mixed fatty acid ester, (D) a cationic surfactant, and (E) a higher alcohol having a long-chain alkyl group having 12 to 24 carbon atoms, which can provide an airy hairstyle while caring for damaged hair. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2023-64089 [Patent Document 2] Patent Publication No. 2022-49821 Summary of the Invention [Problem to be solved by the invention]

[0004] As hairstyles become more popular, opportunities for hair damage due to coloring, layering, perming, and the use of irons and curling irons are increasing, and there is a growing demand for hair cosmetics with conditioning properties. Furthermore, while quaternary ammonium salt-type cationic surfactants have traditionally been used as cationic surfactants in hair cosmetics, they have the problem of being highly irritating to the skin, and improvements have been sought in recent years. Although the use of tertiary amino group-containing compounds instead of quaternary ammonium salt-type cationic surfactants is expected to reduce irritation, it has been found that this also poses the problem of reduced conditioning power. [Means for solving the problem]

[0005] The present inventors have conducted studies in consideration of the above-mentioned problems and have found that a hair cosmetic composition containing a carboxylic acid polymer having a weight-average molecular weight of 100,000 or more and 8,000,000 or less has good conditioning power even when it contains a tertiary amino group-containing compound, thereby completing the present invention. [Effects of the Invention]

[0006] According to the present invention, there is provided a hair cosmetic composition having good conditioning power, in particular a slimy feeling when rinsed off and a feeling of elasticity and body in the hair after drying. DETAILED DESCRIPTION OF THE INVENTION

[0007] The hair cosmetic composition of the present disclosure contains a carboxylic acid polymer having a weight-average molecular weight of 100,000 or more and 8,000,000 or less.

[0008] <Carboxylic acid polymer> The carboxylic acid polymer of the present disclosure is a polymer having a structural unit derived from a carboxylic acid monomer. The structural unit derived from a carboxylic acid monomer is not limited to a structural unit formed by polymerizing a carboxylic acid monomer, but may be, for example, a structural unit formed by a post-reaction after polymerization. The carboxylic acid monomer of the present disclosure is preferably an α,β-unsaturated carboxylic acid monomer, and specific examples thereof include acrylic acid, methacrylic acid, itaconic acid, crotonic acid, citraconic acid, fumaric acid, maleic acid, maleic anhydride, monomethyl maleate, monoethyl maleate, monooctyl maleate, monomethyl fumarate, monoethyl fumarate, monooctyl fumarate, β-carboxyethyl (meth)acrylate, 2-(meth)acryloyloxyethyl hexahydrophthalic acid, 2-(meth)acryloyloxypropyl hexahydrophthalic acid, 2-methacryloyloxyethyl succinic acid, 2-methacryloyloxyethyl maleic acid, 2-(meth)acryloyloxyethyl phthalic acid, 2-(meth)acryloyloxypropyl phthalic acid, myristoleic acid, oleic acid, eicosadienoic acid, and docosadienoic acid. Of these, acrylic acid, methacrylic acid, itaconic acid, fumaric acid, maleic acid, maleic anhydride, etc. are preferred, acrylic acid and methacrylic acid are more preferred, and acrylic acid is particularly preferred.

[0009] The content of structural units derived from carboxylic acid monomers in 100 parts by mass of the carboxylic acid polymer of the present disclosure is preferably 80 parts by mass or more, more preferably 90 parts by mass or more, even more preferably 95 parts by mass or more, particularly preferably 99 parts by mass or more, and may be 100 parts by mass. The weight-average molecular weight of the carboxylic acid polymer of the present disclosure is preferably 100,000 or more, more preferably 120,000 or more, and even more preferably 150,000 or more, from the viewpoint of conditioning power when used in cosmetics (particularly improving the feeling of stickiness when rinsing and the firmness and resilience of hair after drying); and from the viewpoint of incorporation into cosmetics, it is preferably 8,000,000 or less, more preferably 6,000,000 or less, even more preferably 5,000,000 or less, and may be 3,000,000 or less, 2,000,000 or less, 1,500,000 or less, or 1,000,000 or less. The weight average molecular weight of the carboxylic acid polymer can be measured by the method described in the Examples.

[0010] <Tertiary amino group-containing compounds> The hair cosmetic composition of the present disclosure contains a tertiary amino group-containing compound having a molecular weight of 1,000 or less. The tertiary amino group-containing compound of the present disclosure is not particularly limited, but includes tertiary amines represented by the following general formula (1).

[0011] [ka]

[0012] (In the formula, R 1 represents a linear or branched alkyl or alkenyl group having 8 to 36 carbon atoms, which may be interrupted by a functional group represented by -O- or -CONH- or substituted by -OH; R 2 , R 3 represents an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms. R of the tertiary amine represented by the above general formula (1) 1 Specific examples of tertiary amines having a linear or branched alkyl or alkenyl group include lauryl dimethylamine, myristyl dimethylamine, cetyl dimethylamine, stearyl dimethylamine, oleyl dimethylamine, isostearyl dimethylamine, arachyl dimethylamine, and behenyl dimethylamine.

[0013] In addition, R of the tertiary amine represented by the above general formula (1) 1 Specific examples of tertiary amines having a linear or branched alkyl or alkenyl group, which may be interrupted by a functional group represented by -O-, include lauroxypropyldimethylamine, myristyloxypropyldimethylamine, cetyloxypropyldimethylamine, stearoxypropyldimethylamine, and behenyloxypropyldimethylamine. In addition, R of the tertiary amine represented by the above general formula (1) 1 Specific examples of tertiary amines having a linear or branched alkyl or alkenyl group, in which the alkyl group may be interrupted by a functional group represented by -CONH-, include amidoamines represented by the following general formula (2):

[0014] [ka] (In the formula, R 4 CO represents a fatty acid residue having 8 to 24 carbon atoms, and n represents an integer of 1 to 5. The amidoamine represented by the general formula (2) includes R 4 is a linear alkyl group having 12 to 24 carbon atoms, R 2 , R 3 is preferably an alkyl group having 1 to 3 carbon atoms, and specific examples include lauramidopropyl dimethylamine, myristamidopropyl dimethylamine, palmitamidopropyl dimethylamine, stearamidopropyl dimethylamine, oleamidopropyl dimethylamine, isostearamidopropyl dimethylamine, arachimidodopropyl dimethylamine, behenamidopropyl dimethylamine, coconut fatty acid amidopropyl dimethylamine, palm fatty acid amidopropyl dimethylamine, beef tallow fatty acid amidopropyl dimethylamine, stearamidoethyl diethylamine, arachimidodoethyl diethylamine, behenamidoethyl diethylamine, and the like, with stearamidopropyl dimethylamine and behenamidopropyl dimethylamine being particularly preferred.

[0015] In addition, R of the tertiary amine represented by the above general formula (1) 1 Specific examples of tertiary amines having a linear or branched alkyl or alkenyl group, which may be interrupted by a functional group represented by -O- or substituted with -OH, include R 1 Examples of the hydroxyetheramine include hydroxyetheramines represented by the following general formula (3) (however, hydroxyetheramines represented by the general formula (1) are excluded).

[0016] [ka]

[0017] (In the formula, R 5 represents a linear or branched alkyl group, alkenyl group or hydroxyalkyl group having 6 to 24 carbon atoms, and m represents an integer of 1 to 5. R in general formula (1)1 However, in the hydroxyetheramine group represented by the general formula (3), R is an alkyl group having 12 to 24 carbon atoms, R 2 , R 3 is an alkyl group having 1 to 3 carbon atoms, and l is 1 to 3, particularly 1. Specific examples include lauryl PG dimethylamine, myristyl PG dimethylamine, palmityl PG dimethylamine, cetyl PG dimethylamine, cetostearyl PG dimethylamine, carnaryl PG dimethylamine, oleyl PG dimethylamine, elaidyl PG dimethylamine, linoleyl PG dimethylamine, and linolenyl PG dimethylamine.

[0018] The tertiary amine compound of the present disclosure can also be used as a salt neutralized with an inorganic acid and / or an organic acid. Specific examples of inorganic and / or organic acids include hydrochloric acid, sulfuric acid, phosphoric acid, acetic acid, lactic acid, glycolic acid, citric acid, glutamic acid, malic acid, and succinic acid, and one or two of these can be used at will. The molecular weight of the tertiary amino group-containing compound of the present disclosure is preferably 1,000 or less, more preferably 800 or less, even more preferably 600 or less, and particularly preferably 500 or less. The molecular weight of the tertiary amino group-containing compound of the present disclosure may be calculated as the sum of the atomic weights of the atoms constituting the compound, or a value listed in a catalog or the like may be used. The tertiary amino group-containing compound of the present disclosure is preferably used as a surfactant in a cosmetic composition, and is particularly preferably used as a cationic surfactant.

[0019] <Cationic polymer> The cosmetic composition of the present disclosure may contain a cationic polymer having a weight-average molecular weight of 10,000 or more. The cationic polymer of the present disclosure refers to a polymer having cationic groups in the molecule, and the cationic groups refer to one or more groups selected from a quaternary ammonium group and an amino group. Examples of the cationic polymer of the present disclosure include cationized cellulose, cationized starch (also referred to as cationized guar), cationized tara gum, cationized locust bean gum, cationized fenugreek gum, diallyldialkyl quaternary ammonium salt / acrylamide copolymer, diallyldialkyl quaternary ammonium salt / acrylamide / acrylic acid copolymer, etc. Among these, cationized cellulose, cationized guar gum, and diallyldialkyl quaternary ammonium salt / acrylamide copolymer are preferred. The weight average molecular weight of the cationic polymer of the present disclosure is preferably 10,000 or more, more preferably 50,000 or more, and even more preferably 100,000 or more, and may be 5,000,000 or less, 3,000,000 or less, or 2,000,000 or less. The weight average molecular weight of the cationic polymer of the present disclosure can be measured by gel permeation chromatography (GPC).

[0020] <Higher alcohol> The cosmetic composition of the present disclosure may contain a higher alcohol. The higher alcohol of the present disclosure refers to a monohydric, chain-type saturated alcohol having 6 or more carbon atoms. The higher alcohol may be a linear, monohydric, chain-type saturated alcohol or a branched, monohydric, chain-type saturated alcohol. The higher alcohol may be a primary alcohol, a secondary alcohol, or a tertiary alcohol. Examples of the higher alcohols include n-hexyl alcohol, n-heptyl alcohol, n-octyl alcohol, n-nonyl alcohol, n-decyl alcohol, n-undecyl alcohol, n-heptyl alcohol, lauryl alcohol, n-tridecyl alcohol, myristyl alcohol, n-pentadecyl alcohol, cetyl alcohol (cetanol), margaryl alcohol, stearyl alcohol, behenyl alcohol, n-nonadecyl alcohol, arachidyl alcohol, ceryl alcohol, melissyl alcohol, palmitoleic alcohol, oleyl alcohol, eicosenyl alcohol, 2-methylpentyl alcohol, 2-ethylbutyl alcohol, 2-ethylhexyl alcohol, methylamyl alcohol, capryl alcohol, diisobutylcarbinol, isostearyl alcohol, octyldodecanol, and mixtures of two or more thereof. More preferred examples of the higher alcohols include myristyl alcohol, cetanol, stearyl alcohol, behenyl alcohol, and mixtures of two or more thereof. The cosmetic composition of the present disclosure may contain compounds other than the above compounds. Other compounds include oils, amino-modified silicone oils, silicone oils, highly polymerized silicone oils, polyhydric alcohols, thickeners, ultraviolet absorbers, antioxidants, emollients, solubilizers, anti-inflammatory agents, moisturizers, preservatives, pH adjusters, dyes, fragrances, powders, and quaternary ammonium salt-type cationic surfactants.

[0021] <Cosmetic composition> The content of the carboxylic acid polymer in 100 parts by mass of the cosmetic composition of the present disclosure is preferably 0.01 parts by mass or more, more preferably 0.05 parts by mass or more, and even more preferably 0.1 parts by mass or more, from the viewpoint of conditioning power when used in cosmetics (particularly improving the slimy feeling when rinsing and the firmness and resilience of hair after drying); and from the viewpoint of incorporation into cosmetics, it is preferably 1.0 part by mass or less, more preferably 0.6 parts by mass or less, and even more preferably 0.3 parts by mass or less.

[0022] The content of the tertiary amino group-containing compound in 100 parts by mass of the cosmetic composition of the present disclosure is preferably 0.5 parts by mass or more, more preferably 1.0 parts by mass or more, and even more preferably 1.5 parts by mass or more, from the viewpoint of conditioning power when used in cosmetics (particularly improving the slimy feeling when rinsing and the firmness and resilience of hair after drying); and from the viewpoint of incorporation into cosmetics, it is preferably 5.0 parts by mass or less, more preferably 4.0 parts by mass or less, and even more preferably 3.0 parts by mass or less. The content of the cationic polymer in 100 parts by mass of the cosmetic composition of the present disclosure is preferably 0.01 parts by mass or more, more preferably 0.05 parts by mass or more, and even more preferably 0.1 parts by mass or more, from the viewpoint of conditioning power when used in cosmetics (particularly improving the slimy feeling when rinsing and the firmness and resilience of hair after drying); and from the viewpoint of incorporation into cosmetics, it is preferably 1.0 part by mass or less, more preferably 0.8 parts by mass or less, and even more preferably 0.6 parts by mass or less. The content of higher alcohol in 100 parts by mass of the cosmetic composition of the present disclosure is preferably 2.0 parts by mass or more, more preferably 3.0 parts by mass or more, and even more preferably 5.0 parts by mass or more, from the viewpoint of conditioning power when used in cosmetics (particularly improving the slimy feeling when rinsing and the firmness and resilience of hair after drying); and from the viewpoint of incorporation into cosmetics, it is preferably 15.0 parts by mass or less, more preferably 12.0 parts by mass or less, and even more preferably 10.0 parts by mass or less. The content of other compounds in 100 parts by mass of the cosmetic composition of the present disclosure is preferably 90.0 parts by mass or more, more preferably 91.0 parts by mass or more, and even more preferably 92.0 parts by mass or more, and from the viewpoint of incorporation into cosmetics, it is preferably 99.0 parts by mass or less, more preferably 98.5 parts by mass or less, and even more preferably 98.0 parts by mass or less.

[0023] The cosmetic composition of the present disclosure is preferably a hair cosmetic composition, and more preferably a hair conditioning composition. In this specification, the term "hair conditioning composition" refers to a composition having a conditioning effect, and the term "conditioning effect" refers to the conditioning effect on keratinous materials after washing with the cleanser composition. For example, when the keratinous material is hair, the hair conditioning effect refers to the effect of improving the lubricity and softness of the washed hair during rinsing, the resistance to tangling during rinsing, the drying speed, and the manageability of the dried hair. Furthermore, the term "durable conditioning effect" refers to the fact that the conditioning effect is maintained even after further washing of the keratinous material after application of the treatment method of the present invention. The hair conditioning compositions of the present disclosure include rinse-off hair conditioning compositions such as hair rinses, hair treatments, hair packs, and hair masks, as well as leave-in hair conditioning compositions such as hair oils, hair milks, hair creams, and hair mists.

[0024] <Cosmetics> Representative examples of the cosmetic composition of the present disclosure include cosmetics, pharmaceuticals, and quasi-drugs that are applied to the outer skin (including the scalp) and hair, and among these, it is preferable to use the composition as a hair cosmetic composition. Specific examples of cosmetics according to the present disclosure include facial cosmetics such as lotions, emulsions, creams, and packs; makeup cosmetics such as foundations, lipsticks, and eye shadows; and hair cosmetics such as shampoos, hair conditioners, hair dyes, hair dye pre-treatment and post-treatment agents for hair dyeing, and split-end coating agents. Hair cosmetics are preferred, and hair conditioners are more preferred. In this specification, hair conditioners refer to products that have a conditioning effect, and include hair rinses, hair treatments, hair packs, hair masks, hair oils, hair milks, hair creams, and hair mists. The conditioning effect is as described above. [Example]

[0025] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. Unless otherwise specified, "parts" means "parts by mass" and "%" means "% by mass." <Measurement conditions for weight average molecular weight (Mw)> The weight average molecular weight and molecular weight distribution were measured under the following conditions. Equipment: Tosoh Corporation HLC-8320GPC Detector: RI Column: SHODEX Asahipak GF-310-HQ manufactured by Showa Denko K.K. GF-710-HQ, GF-1G 7B Column temperature: 40℃ Flow rate: 0.5mL / min. Sample solution injection volume: 10 μL (sample concentration: 0.5% by mass) Calibration curve: Polyacrylic acid standard (Mp = 94, 900, 2925, 7 500, 28000, 115000, 143800, 589700) and melted with Mp. Created using a cubic formula based on output time. Eluent: 0.1N sodium acetate aqueous solution

[0026] The formation of polyion complexes by combining cationic polymers and carboxylic acid polymers was evaluated. [Reference example 1] 70.0 parts of purified water as part A, 5.0 parts of cationized cellulose (2% by mass aqueous solution) as part B, and 2.8 parts of succinic acid (5% by mass aqueous solution) as part C were mixed and heated to 70°C. Sodium polyacrylate (molecular weight 3,500, 2% by weight aqueous solution) as part D and 17.2 parts of purified water as part E are mixed, adjusted to about pH=3, and heated to 70°C. While stirring at 400 rpm using a three-one motor, the mixture of parts D and E was added little by little to the mixture of parts A and C, and mixed for 5 minutes after the addition to obtain a mixture. The prepared mixture was visually inspected for the presence or absence of a polyion complex. The evaluation results are shown in Table 1. [Reference examples 2~10] Except for mixing the compositions shown in Table 1, the preparation was carried out in the same manner as in Reference Example 1. The evaluation results are shown in Table 1. [Reference examples 11~20] Except for mixing the compositions shown in Table 2, the preparation was carried out in the same manner as in Reference Example 1. The evaluation results are shown in Table 2.

[0027] [Table 1]

[0028] [Table 2]

[0029] *1 Product name: Catinal LC-200, manufactured by Toho Chemical Co., Ltd. *2 Product name: Labol Gum CG-M, MP manufactured by Gokyo Food & Chemical Co., Ltd. *3 Product name: CC-H700, manufactured by Nippon Shokubai Co., Ltd. *4 Product name: ZX-CC-C-130, manufactured by Nippon Shokubai Co., Ltd. *5 Product name: CG-SA, manufactured by Nippon Shokubai Co., Ltd. *6 Product name: CR-H35, manufactured by Nippon Shokubai Co., Ltd. *7 Product name: CR-A100, manufactured by Nippon Shokubai Co., Ltd. *8 Product name: CR-H1700, manufactured by Nippon Shokubai Co., Ltd. *9 Product name: CR-A8000, manufactured by Nippon Shokubai Co., Ltd. *10 Product name: CR-C50, manufactured by Nippon Shokubai Co., Ltd.

[0030] [Reference example 21] 70.0 parts of purified water as part A, 15.0 parts of cationized cellulose (2% by mass aqueous solution) as part B, and 1.4 parts of succinic acid (5% by mass aqueous solution) as part C are mixed and adjusted to about pH = 3, and heated to 70 ° C. 5.0 parts of polyacrylic acid (molecular weight 800,000, 2% by mass aqueous solution) as part D and 8.6 parts of purified water as part E are mixed and heated to 70 ° C. While stirring at 400 rpm using a three-one motor, the mixture of parts D and E was added little by little to the mixture of parts A and C, and mixed for 5 minutes to obtain a mixture. The prepared mixture was visually inspected for the presence or absence of a polyion complex. The evaluation results are shown in Table 3. [Reference examples 22~30] The composition was mixed as shown in Table 3, and the other operations were the same as in Reference Example 21. The evaluation results are shown in Table 3.

[0031] <Evaluation criteria for polyion complex formation> The mixture obtained was visually inspected, and cloudy mixtures were marked with a circle, and transparent mixtures were marked with an X.

[0032] [Table 3]

[0033] In the following Comparative Examples 1-2 and Example 1, tertiary amine-based conditioners containing a polyion complex formed by combining a cationic polymer and a carboxylic acid polymer were prepared, and the feel upon application to hair, rinsing, and drying was evaluated. [Comparative Example 1] As part A, 2.0 parts of stearamidopropyldimethylamine and 6.0 parts of cetearyl alcohol were heated to 80°C and dissolved uniformly. As part B, 60.0 parts of purified water and 0.5 parts of succinic acid (a 5% by mass aqueous solution) were heated to 80° C. and dissolved uniformly. While stirring at 400 rpm using a three-one motor, part B was added little by little to part A, and after stirring for 5 minutes, the mixture was slowly cooled to 50°C. As part C, 15.0 parts of cationized cellulose (2 mass% aqueous solution) was heated to 60°C and added to the mixture of parts A and B, and as part D, purified water was added to make the total amount 100 parts, and the mixture was mixed uniformly. The prepared mixture was evaluated for its stickiness upon application, its stickiness upon rinsing, its smoothness after drying, and its firmness after drying. The evaluation results are shown in Table 4. Comparative Example 2 The same preparation was performed as in Comparative Example 1, except that Part C was changed to a mixture of 15.0 parts of cationized cellulose (2% by mass aqueous solution) and 15.0 parts of polyacrylic acid (molecular weight 10,000, 2% by mass aqueous solution). The evaluation results are shown in Table 4.

[0034] [Example 1] The same preparation was performed as in Comparative Example 1, except that Part C was changed to a mixture of 15.0 parts of cationized cellulose (2% by mass aqueous solution) and 15.0 parts of polyacrylic acid (molecular weight 800,000, 2% by mass aqueous solution). The evaluation results are shown in Table 4. <Evaluation criteria for stickiness upon application> After rinsing human hair (30 cm x 10 g, manufactured by Beaulax, product number: BS-B3A) with tap water, 5 g of the prepared bulk was applied, and the feel in use was evaluated sensorily with the fingers. With Comparative Example 1 as the standard, cases where the stickiness improved were marked with a circle, and cases where there was no change were marked with an x. <Evaluation criteria for stickiness during rinsing> The human hair prepared above was subjected to a sensory evaluation using fingers to assess the feel when rinsed with tap water. With Comparative Example 1 as the standard, cases where the stickiness improved were marked with a circle, and cases where there was no change were marked with an x. <Evaluation criteria for smoothness after drying> The human hair prepared as above was dried with a hairdryer, and then sensory evaluation was performed on the ease of running fingers through the hair. Using Comparative Example 1 as the standard, cases where the smooth feeling of the hair surface was improved and the slippery feeling was improved were marked with a circle, and cases where there was no change were marked with an x. <Evaluation criteria for firmness and elasticity after drying> For the above hair bundle, with Comparative Example 1 as the standard, a mark of ◯ was given if the bounciness was improved, and a mark of x if there was no change.

[0035] [Table 4]

[0036] *11 Product name: NIKKOL Amidoamine MPS, manufactured by Nikko Chemicals Co., Ltd. *12 Product name: Kalcol 6850, manufactured by Kao Corporation

[0037] A tertiary amine-based conditioner containing a polyion complex made by combining a cationic polymer and a carboxylic acid polymer was prepared, and the texture and feel of the conditioner after application to hair, rinsing, and drying were evaluated. Comparative Example 3 As part A, 2.0 parts of stearamidopropyldimethylamine and 7.0 parts of cetearyl alcohol were heated to 80°C and dissolved uniformly. As part B, 44.1 parts of purified water, 0.5 parts of succinic acid, 2.0 parts of glycerin, and 0.1 parts of etidronic acid (60% by mass aqueous solution) were heated to 80°C and dissolved uniformly. While stirring at 400 rpm using a three-one motor, part B was added little by little to part A, and after stirring for 5 minutes, the mixture was slowly cooled to 50°C. As part C, 25.0 parts of purified water and 15.0 parts of cationized cellulose (2% by mass aqueous solution) were uniformly mixed and heated to 60°C, and the mixture was added to the mixture of parts A and B and mixed uniformly. A mixture of 0.8 parts of dimethicone (500,000 CS) and 3.2 parts of dimethicone (10 CS) as part D, and 0.3 parts of phenoxyethanol were added sequentially to the mixture of parts A, B, and C, and mixed uniformly. The prepared mixture was evaluated for its stickiness upon application, its stickiness upon rinsing, its smoothness after drying, and its firmness after drying. The evaluation results are shown in Table 5.

[0038] [Example 2] The same preparation was performed as in Comparative Example 3, except that Part C was prepared by uniformly mixing 20.0 parts of purified water and 15.0 parts of cationized cellulose (2% by weight aqueous solution) and heating to 60°C, adding 5.0 parts of polyacrylic acid (molecular weight 800,000) (2% by weight aqueous solution) heated to 60°C while stirring at 400 rpm using a Three-One motor, and uniformly stirring for 5 minutes. The evaluation results are shown in Table 5. [Examples 3 to 6] The preparation was carried out in the same manner as in Example 2, except that the amounts of each component in Part C were changed to those shown in Table 2. The evaluation results are shown in Table 5. Comparative Example 4 The preparation was carried out in the same manner as in Comparative Example 3, except that the cationized cellulose was changed to cationized guar (2% by mass aqueous solution). The evaluation results are shown in Table 6. [Examples 7 to 11] The preparation was carried out in the same manner as in Examples 3 to 6, except that the cationized cellulose was changed to cationized guar (2% by mass aqueous solution). The evaluation results are shown in Table 6.

[0039] <Evaluation criteria for fabric condition> Using Comparative Examples 3 and 4 as the standards, those in which the fabric condition was good (better uniformity than Comparative Examples 3 and 4) were rated as ○, those in which the uniformity was reduced were rated as △, and those in which the uniformity was significantly reduced were rated as ×. <Evaluation criteria for slimy feeling upon application and rinsing> After rinsing human hair (30 cm x 10 g, manufactured by Beaulax, product number: BS-B3A) with tap water, 5 g of the prepared bulk was applied, and the feel in use was evaluated sensorily with the fingers. Using Comparative Examples 3 and 4 as the standard, cases where the stickiness improved were marked with a circle, and cases where there was no change were marked with an x. <Evaluation criteria for smoothness and firmness after drying> The human hair prepared as above was dried with a hairdryer, and then sensory evaluation was performed on the ease of running fingers through the hair. Using Comparative Examples 3 and 4 as the standard, cases where the smooth feeling of the hair surface was improved, the slippery feeling was improved, and the bouncy feeling was improved were marked with an O, and cases where there was no change were marked with an X.

[0040] [Table 5]

[0041] [Table 6]

[0042] *13 Product name: Concentrated glycerin for cosmetics, manufactured by Miyoshi Oil & Fat Co., Ltd. *14 Product name: 60% 1-hydroxyethane-1,1-bis(phosphonic acid) solution, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. *15 Product name: KF-96A-500,000CS, manufactured by Shin-Etsu Chemical Co., Ltd. *16 Product name: KF-96A-10CS, Shin-Etsu Chemical Co., Ltd. *17 Product name: CP-E1, manufactured by Nippon Nyukazai Co., Ltd.

[0043] [Reference prescription] The conditioner formulation was prepared according to the following procedure. It was confirmed that the generation of polyion complexes improved the feel of use.

[0044] As part A, 2.0 parts of stearamidopropyldimethylamine and 7.0 parts of cetearyl alcohol were heated to 80°C and dissolved uniformly. As part B, 44.1 parts of purified water, 0.5 parts of succinic acid, 2.0 parts of glycerin, and 0.1 parts of etidronic acid (60% by mass aqueous solution) were heated to 80°C and dissolved uniformly. While stirring at 400 rpm using a three-one motor, part B was added little by little to part A, and after stirring for 5 minutes, the mixture was slowly cooled to 50°C. To prepare part C, 20.0 parts of purified water and 15.0 parts of cationized guar (2% by mass aqueous solution) were mixed uniformly and heated to 60°C, and 10.0 parts of polyacrylic acid (molecular weight 800,000, 2% by mass aqueous solution) heated to 60°C was added while stirring at 300 rpm using a three-one motor, and the mixture was stirred uniformly for 5 minutes. The mixture was then added to the mixture of parts A and B and mixed uniformly. Part D was a mixture of 0.8 parts of dimethicone (500,000 CS) and 3.2 parts of dimethicone (10 CS), and 0.3 parts of phenoxyethanol was added to the mixture of parts A, B, and C in order and mixed uniformly.

Claims

1. a carboxylic acid polymer having a weight average molecular weight of 100,000 or more and 8,000,000 or less; A hair cosmetic composition comprising a tertiary amino group-containing compound having a molecular weight of 1,000 or less.

2. The hair cosmetic composition according to claim 1, further comprising a cationic polymer having a weight-average molecular weight of 10,000 or more.

3. The hair cosmetic composition according to claim 1, further comprising a higher alcohol.

4. A hair conditioning composition comprising the hair cosmetic composition according to any one of claims 1 to 3.

5. A hair cosmetic comprising the hair conditioning composition of claim 4.

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