JP2005239569A - Hair cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare a non-washing-away type hair cosmetic which essentially modifies hair, improves the gloss and collectability of hair, and gives a sense of touch. <P>SOLUTION: This non-washing-away type hair cosmetic comprises the following components (A), (B) and (C), and has a pH 2 to 5 at 25°C, when diluted with water into an amount of 20 weight times. (A) A 2 to 8C organic dicarboxylic acid or its salt. (A) A 2 to 8C organic dicarboxylic acid or its salt. (B) An organic solvent selected from the group consisting of aromatic alcohols, N-alkylpyrrolidones, alkylene carbonates, polypropylene glycol, lactones, and cyclic ketones, and has a Clog P of -2 to 3. (C) A ceramide production-promoting agent. A method for modifying hair comprises treating the hair therewith. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hair cosmetic of a type that does not wash away and improves hair gloss, cohesiveness, setting power, and feel.

  In recent years, due to the chemical treatment with hair color and the physical treatment with blow, etc., peeling of the cuticle on the hair surface and hollowing out of the hair due to the outflow of lipid inside the hair, etc., as a result, the hair becomes dry. It is said that bad fingering, loose hair, and loss of luster may occur.

  Currently used as a hair cosmetic that does not wash away, such as a hair cream type containing wax, higher alcohols, surfactants, etc. There are emulsified products or gels containing a film-forming polymer (set polymer). Such a hair cosmetic can attach fats and oils and polymers to the hair surface and temporarily solve problems such as poor cohesiveness and dryness, but essentially prevents hair gloss and cohesiveness. It could not be improved.

  Several hair cosmetics aimed at modifying the hair are known, but those using specific organic acids and organic solvents are known as attempts to modify the hair by working inside it. (For example, see Patent Documents 1 to 4). These soften hard and hard-to-handle hair and promote hair unity.

  An object of the present invention is to provide a hair cosmetic of a type that does not wash away, which is essentially improved hair, improves the gloss and cohesion of the hair, and is excellent in touch.

Japanese Patent Laid-Open No. 7-112921 JP-A-6-172131 Japanese Patent Laid-Open No. 9-301831 JP-A-62-298625 JP 2000-169359 A

  The present inventors further incorporated a ceramide production promoter (see Patent Document 5) into a hair cosmetic containing an organic dicarboxylic acid and an organic solvent that promotes permeation, whereby the hair quality of the organic acid and the organic solvent is used. The improvement effect is improved, that is, the ceramide production promoter acts on the scalp and hair follicles, coupled with the growth of hair with firmness and stiffness by increasing the ceramide in the stratum corneum, the firmness and firmness of the hair It was found that the feeling and softness were further improved.

That is, the present invention comprises the following components (A), (B) and (C)
(A) C2-C8 organic dicarboxylic acid or salt thereof
(B) An organic solvent selected from the group consisting of aromatic alcohol, N-alkylpyrrolidone, alkylene carbonate, polypropylene glycol, lactone and cyclic ketone, wherein ClogP is −2 to 3.
(C) The present invention provides a hair cosmetic of a type containing a ceramide production promoter and having a pH of 2 to 5 at 25 ° C. when diluted 20 times by weight with water and not washed off.

  Furthermore, this invention provides the hair modification method which processes hair using the said hair cosmetics. In the present invention, the modification of hair refers to improving the firmness, firmness, and softness of the hair.

  The hair cosmetic composition of the present invention is damaged by repeated coloring, perming, and excessive dryer drying, and can give gloss, unity, suppleness, and elasticity to hair that tends to dry and dry.

  Examples of the organic dicarboxylic acid having 2 to 8 carbon atoms as component (A) include malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, oxalic acid, malic acid, tartaric acid and the like. Among these, those having 3 or more carbon atoms, particularly malic acid and tartaric acid which are hydroxydicarboxylic acids, malonic acid and succinic acid are preferred, and malic acid is particularly preferred. Examples of salts of these organic dicarboxylic acids include salts with alkali metals, alkaline earth metals, ammonia, and organic amine compounds.

  Two or more kinds of these components (A) may be used in combination, and the content thereof is the hair makeup of the present invention from the viewpoint of the effect of internal modification (such as cavity repair) of hair, the effect of improving set retention, and the effect of improving unity. The content is preferably 0.01 to 30% by weight, more preferably 0.1 to 20% by weight, and particularly preferably 0.5 to 10% by weight.

  Examples of the organic solvent of component (B) include those selected from the following (b1) to (b5).

  (b1) Aromatic alcohol represented by general formula (1)

[Wherein R ¹ represents a group R ² —Ph—R ³ — (R ² ; a hydrogen atom, a methyl group or a methoxy group, R ³ ; a bond or a saturated or unsaturated divalent carbon atom having 1 to 3 carbon atoms. Hydrogen group, Ph; paraphenylene group), Y and Z each represent a hydrogen atom or a hydroxyl group, and p, q, and r each represent an integer of 0 to 5. However, when p = q = 0, Z is not a hydrogen atom and R ¹ is not a group R ² —Ph—. ]

  (b2) N-alkylpyrrolidone having a C1-C18 alkyl group bonded to a nitrogen atom

  (b3) C2-C4 alkylene carbonate

  (b4) Polypropylene glycol having a number average molecular weight of 100 to 1000

  (b5) Lactone or cyclic ketone represented by general formula (2), (3) or (4)

[Wherein, X represents a methylene group or an oxygen atom, R ⁴ and R ⁵ represent different substituents, and a and b represent 0 or 1. ]

Among the organic solvents that are component (B), examples of (b1) include benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol and the like. . Examples of (b2) include N-methylpyrrolidone, N-octylpyrrolidone, N-laurylpyrrolidone and the like. Examples of (b3) include ethylene carbonate and propylene carbonate. As the polypropylene glycol (b4) having a number average molecular weight of 100 to 1000, those having a number average molecular weight of 100 to 500, particularly those having a polymerization degree of 2 to 5 are preferred. In (b5), R ⁴ and R ⁵ in the general formulas (2) to (4) are linear, branched or cyclic alkyl groups, hydroxyl groups, sulfonic acid groups, phosphoric acid groups, carboxy groups, phenyl groups. , A sulfoalkyl group, an alkyl phosphate group, a carboxyalkyl group, etc. are preferable. In particular, in the case of γ-lactone, the γ-position is substituted, and in the case of δ-lactone, the δ-position (that is, the methylene adjacent to the hetero oxygen atom) is substituted. C1-C6 linear or branched alkyl groups such as methyl, ethyl, propyl, isopropyl and butyl groups are preferred. When it is desired to increase the water solubility of the compounds (2) to (4), R ⁴ or R ⁵ has an acidic group such as a sulfonic acid group, a phosphoric acid group or a carboxy group, or an alkyl group substituted with these. Is preferred. Among (b5), lactones include γ-butyrolactone, γ-caprolactone, γ-valerolactone, δ-valerolactone, δ-caprolactone, δ-heptanolactone, and the like, from the viewpoint of lactone stability. Γ-lactone, particularly γ-butyrolactone and γ-caprolactone are preferred. Among (b5), examples of the cyclic ketone include cyclopentanone, cyclohexanone, cycloheptanone, 4-methylcycloheptanone and the like.

  Particularly preferred components (B) include benzyl alcohol, benzyloxyethanol, propylene carbonate and propylene glycol (number average molecular weight 300 to 500, particularly 400).

  In addition, the component (B) used in the present invention is preferably liquid at 25 ° C., and ClogP needs to be −2 to 3, and from the viewpoint of promoting penetration, it should be −1 to 2. Is preferred. Here, ClogP is a calculated value of the octanol-water-partition coefficient (logP) defined by the following formula, which is a measure representing the distribution of substances between the octanol phase and the water phase. An example is described in Vol. 71, No. 6 (1971).

logP = log ([Substance] _Octanol / [Substance] _Water )

[In the formula, [Substance] _Octanol represents the molar concentration of the substance in the 1-octanol phase, and [Substance] _Water represents the molar concentration of the substance in the aqueous phase. ]

  Specifically, ClogP of the main component (B) is benzyl alcohol (1.1), 2-benzyloxyethanol (1.2), 2-phenylethanol (1.2), 1-phenoxy-2-propanol (1.1), polypropylene Glycol 400 (0.9), propylene carbonate (-0.41), and γ-butyrolactone (-0.64).

  Ingredient (B) may be used in combination of two or more, and the content thereof is from the point of use feeling, hair gloss and promotion of modification effect (improvement of elasticity, improvement of moisture resistance, etc.). 0.1 to 40% by weight in the hair cosmetic composition of the invention is preferable, more preferably 0.5 to 10% by weight, and particularly preferably 1 to 5% by weight.

  The ceramide production promoter of component (C) acts on the hair follicle or scalp, increases ceramide in the hair, and imparts a firmness, firmness and moist feeling to the hair with a high barrier function. Examples of ceramide production promoters include hops, ginger, ganbeeroki, wild rose, horse chestnut, lily, pearl barley, gama, loquat, gardenia, scorpion, birch, achacha, clove, safflower, bituminous, iris and clara, and extracts thereof, steam distillation What is chosen from a thing and a pressing thing is preferable. These promote the penetration of the organic dicarboxylic acid of the component (A) or a salt thereof, the organic solvent of the component (B) into the hair, and the component (C) itself penetrates the scalp and hair follicle at the same time, The hair modification effect is further improved.

  As the component (C), the above plant can be used as it is or after dry pulverization, but an extract, a steam distillate or a compressed product can also be used, and these are more refined oils such as essential oils. It is also possible to use commercially available products. Two or more kinds of these plants or extracts thereof, steam distillates or pressed products can be used in combination.

  Solvents used for extraction are those usually used for extraction of plant components such as water, petroleum ether, n-hexane, toluene, dichloroethane, chloroform, ether, ethyl acetate, acetone, methanol, ethanol, propanol, butanol, ethylene glycol. , Propylene glycol, butylene glycol, and the like, and water, ethanol, propylene glycol, and butylene glycol are particularly preferable. Two or more of these may be used in combination. Moreover, normal conditions can be applied as extraction conditions. For example, the above-described plant may be immersed or heated to reflux at 3 to 100 ° C. for several hours to several weeks. When used as an essential oil, a usual method can be adopted, and for example, it can be obtained from the above plant by a steam distillation method, an extraction method, a pressing method or the like. These plant extracts, steam-distilled products, or compressed products can be used as components (C) as they are, but the fractions with high activity are further fractionated by appropriate separation means such as gel filtration, chromatography, precision distillation, etc. Can also be used.

  The ceramide production promoter of component (C) may be used in combination of two or more thereof, and the content thereof is 0.00001-20 wt.% In the hair cosmetic composition of the present invention as a dry weight from the viewpoint of the hair modifying effect. %, More preferably 0.001 to 10% by weight, and particularly preferably 0.05 to 5% by weight.

  The weight ratio of the organic dicarboxylic acid of component (A) or its salt and the organic solvent of component (B) effectively expresses the effects of internal hair modification (such as cavity repair), improved set retention, and improvement of mass. Therefore, it is preferable that (A) :( B) = 10: 1 to 1: 7, particularly 4: 1 to 1: 3.

  The weight ratio of the component (A) organic dicarboxylic acid or its salt and the component (C) ceramide production promoter acts on the scalp and hair follicles, and has a hair modification effect (harness, stiffness, moist feeling, softness). For early expression, a range of 1000: 1 to 2: 1, particularly 500: 1 to 5: 1 is preferred.

  Furthermore, the hair cosmetic composition of the present invention can contain ethanol. Ethanol contributes to solubilization or stable dispersion of component (B). Furthermore, it contributes to the solubilization of components (A) and (C), which promotes penetration into the hair, scalp and hair follicles. The content of ethanol is preferably 0.01 to 50% by weight, particularly 1 to 20% by weight in the hair cosmetic composition of the present invention. The weight ratio of ethanol to component (B) is ethanol: component (B) = 40: 1 to 2: 1, particularly 20: 1, from the viewpoint of promoting penetration of components (A) to (C) into hair. A range of ˜3: 1 is preferred.

  The hair cosmetic composition of the present invention further contains a set polymer from the viewpoints of improving hair styling, adjusting viscosity, stability, improving adhesion at the time of applying hair, improving touch, and early expression of hair modification effects. May be. Such polymers include polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymer, vinylpyrrolidone / vinyl acetate / vinyl propionate terpolymer, vinylpyrrolidone / alkylaminoacrylate (quaternary chloride) copolymer, vinyl Polyvinyl pyrrolidone polymer compounds such as pyrrolidone / acrylate / (meth) acrylic acid copolymer, vinyl pyrrolidone / alkylamino acrylate / vinyl caprolactam copolymer; acidic vinyl ether such as methyl vinyl ether / alkyl maleic anhydride alkyl half ester copolymer Polymer compounds; acidic polyvinyl acetate polymer compounds such as vinyl acetate / crotonic acid copolymer, vinyl acetate / crotonic acid / vinyl neodecanoate copolymer, vinyl acetate / crotonic acid / vinyl propionate copolymer; Acid acrylic polymer such as (meth) acrylic acid / (meth) acrylic acid ester copolymer, acrylic acid / acrylic acid alkyl ester / alkylacrylamide copolymer; N-methacryloylethyl-N, N-dimethylammonium α Amphoteric acrylic polymer compounds such as -N-methylcarboxybetaine / butyl methacrylate copolymer, hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer; acrylamide / acrylic ester quaternary copolymer Examples thereof include basic acrylic polymer compounds such as coalescence; cellulose derivatives such as cationic cellulose derivatives; chitin / chitosan derivatives such as hydroxypropyl chitosan, carboxymethyl chitin, and carboxymethyl chitosan.

  These set polymers can be used alone or in combination of two or more, and the content thereof is preferably 0.1 to 10% by weight, particularly 0.5 to 5% by weight in the hair cosmetic composition of the present invention.

The hair cosmetic composition of the present invention may contain a conditioning component selected from silicones and oils for further improving the conditioning effect. Silicones include dimethylpolysiloxane, polyether-modified silicone, amino-modified silicone, carboxy-modified silicone, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy-modified silicone, fluorine-modified silicone, cyclic Examples include silicone and alkyl-modified silicone. Of these, dimethylpolysiloxane, polyether-modified silicone, and amino-modified silicone are preferable. Dimethylpolysiloxane can impart good lubricity to hair, polyether-modified silicone can impart smoothness to hair, and amino-modified silicone can impart moist feeling to hair. . In the present invention, various silicones can be used alone or in combination of two or more depending on the desired performance. Dimethylpolysiloxane can be used from a viscosity of about 5 mm ² / s depending on the desired feel to a viscosity of about 10 million mm ² / s, which is often supplied as an emulsion. It is preferably mm ² / s, particularly 50,000 to 10 million mm ² / s. Polyether-modified silicone is a general term for polyoxyethylene / methylpolysiloxane copolymer and poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer, and those having various HLBs are known, but are commercially available. Products include Silicone KF351A, KF353A, KF6008, KF6016, KF6011, and KF6012, Shin-Etsu Chemical Co., Ltd. SH3771C, 3773C, and 3775C from Toray Dow Corning Silicone. As the amino-modified silicone, amodimethicone oil or an emulsion thereof is preferable. Examples of commercially available products include Amodimethicone emulsion SM8704C manufactured by Toray Dow Corning Silicone Co., KT-1989, XF42-B1989 manufactured by Toshiba Silicone Co., Ltd. It is done.

  The content of the silicone is preferably 0.05 to 20% by weight, more preferably 0.1 to 10% by weight, particularly 0.5 to 5% by weight in the hair cosmetic composition of the present invention, from the viewpoint of fingering and lack of stickiness. Is preferred

  Oils are used to improve the feeling of hair unity after drying. Oils include hydrocarbons such as squalene, squalane, liquid isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, α-olefin oligomer, liquid paraffin and cycloparaffin; castor oil, cacao oil, mink oil, avocado oil, olive oil, etc. Glycerides; waxes such as beeswax, whale wax, lanolin, microcrystalline wax, ceresin wax, carnauba wax; higher alcohols such as cetyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol; myristic acid Octyldodecyl, hexyl laurate, emulsified cetyl, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononyl isononanoate, isononanoic acid Esters such as tridecyl; higher fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearyl acid, isopalmitic acid; other isostearyl glyceryl ethers, Examples include polyoxypropylene butyl ether. Among these, branched hydrocarbons such as squalene, squalane, liquid isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, and α-olefin oligomer are particularly preferable.

  The content of the oil is preferably 0.05 to 20% by weight, more preferably 0.1 to 10% by weight, particularly 0.5 to 5% by weight in the hair cosmetic composition of the present invention, from the viewpoint of good unity and no stickiness. Is preferred.

  The hair cosmetic composition of the present invention may contain a surfactant from the viewpoints of system stability including solubilization and dispersibility of the solvent, and improvement in touch. As the surfactant, any of a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, and an anionic surfactant can be used.

  Examples of the cationic surfactant include quaternary ammonium salts represented by the following general formula (5).

[In the formula, R ⁶ and R ⁷ each independently represent a hydrogen atom, an alkyl group having 1 to 28 carbon atoms or a benzyl group, and simultaneously become a hydrogen atom or a benzyl group; Except when it becomes an alkyl group. Z ⁻ represents an anion. ]

Here, one of R ⁶ and R ⁷ is preferably an alkyl group having 16 to 24 carbon atoms, more preferably 22 alkyl groups, particularly a linear alkyl group, and the other is a lower alkyl group having 1 to 3 carbon atoms, particularly A methyl group is preferred. Examples of the anion Z ⁻ include halide ions such as chloride ions and bromide ions; organic anions such as ethyl sulfate ions and methyl carbonate ions, and halide ions, particularly chloride ions are preferable.

  As the cationic surfactant, mono long-chain alkyl quaternary ammonium salts are preferable, and specific examples include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, aralkyltrimethylammonium chloride, and behenyltrimethylammonium chloride. Stearyl trimethyl ammonium and behenyl trimethyl ammonium chloride are preferable.

  Nonionic surfactants include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, higher fatty acid sucrose ester, polyglycerin fatty acid ester, higher fatty acid mono- or diethanolamide, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid Examples thereof include esters, polyoxyethylene sorbite fatty acid esters, alkyl saccharide surfactants, alkyl amine oxides, and alkyl amido amine oxides. Of these, polyoxyalkylene alkyl ether and polyoxyethylene hydrogenated castor oil are preferable, and polyoxyethylene alkyl ether is particularly preferable.

  Examples of amphoteric surfactants include imidazoline series, carbobetaine series, amide betaine series, sulfobetaine series, hydroxysulfobetaine series, and amide sulfobetaine series.

  Anionic surfactants include alkyl benzene sulfonates, alkyl or alkenyl ether sulfates, alkyl or alkenyl sulfates, olefin sulfonates, alkane sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, Examples include α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphate mono- or diester type surfactants, and sulfosuccinate esters. Counter ions of the anionic residue of the surfactant include alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; alkanol group having 2 or 3 carbon atoms Alkanolamine having 1 to 3 (for example, monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, etc.). Examples of the counter ion of the cationic residue include halide ions such as chloride ion, bromide ion and iodide ion, methosulphate ion and saccharinate ion.

  Of these, cationic surfactants are preferred from the viewpoint of feel. The surfactant can be used alone or in combination of two or more, and from the viewpoint of the stability of the system including solubilization of the solvent and emulsification of the oil agent, the content thereof is in the hair cosmetic composition of the present invention. 0.01 to 10% by weight, particularly 0.05 to 3% by weight is preferred.

  Furthermore, the hair cosmetic composition of the present invention can contain a polyhydric alcohol. The polyhydric alcohol contributes to the solubilization and stable dispersion of the component (B), and works synergistically with the component (B) to promote the improvement of gloss and hair modification effects. Examples of the polyhydric alcohol include ethylene glycol, glycerin, sorbitol, propylene glycol, 1,3-butylene glycol, dipropylene glycol and the like, and glycerin is particularly preferable. The polyhydric alcohol can be used alone or in combination of two or more, and the content thereof is preferably 0.1 to 10% by weight, particularly preferably 0.5 to 5% by weight in the hair cosmetic composition of the present invention.

  In addition to the above-described components, the hair cosmetic of the present invention can be appropriately mixed with components used in normal hair cosmetics depending on the purpose. Examples of such components include anti-dandruff agents; vitamin agents; bactericides; anti-inflammatory agents; antiseptics; chelating agents; moisturizers such as sorbitol and panthenol; colorants such as dyes and pigments; hydroxyethyl cellulose, methyl cellulose, Viscosity modifiers such as polyethylene glycol and clay minerals; pH adjusters such as organic acids other than component (A), sodium hydroxide, potassium hydroxide; plant extracts; pearling agents; fragrances; dyes; Inhibitors; and other components described in ENCYCLOPEDIA OF SHAMPOO INGREDIENTS (MICELLE PRESS).

  The hair cosmetic composition of the present invention promotes the permeation and adsorption of the components (A) and (B) into the hair, and is applied to the hair from the viewpoint of imparting gloss, flexibility, cohesion and suppleness to the hair. The pH (when diluted 20 times by weight, 25 ° C.) is adjusted to 2 to 5, preferably pH 2.5 to 4, particularly pH 3 to 4.

  The form of the hair cosmetic composition of the present invention can be appropriately selected from liquid form, gel form, paste form, cream form, wax form, etc., but a liquid form using water or a lower alcohol, particularly water, as the solvent is preferred.

  The hair cosmetic composition of the present invention is preferably used as a hair styling agent, hair conditioning agent or the like. Examples of the dosage form include pump spray, aerosol spray, pump foam, aerosol foam, gel, lotion and the like.

  Furthermore, the penetration of the components (A) and (B) into the hair can be promoted by heating after applying the hair cosmetic composition of the present invention to the hair. For heating, a dryer, heater, iron or the like can be used. The temperature is preferably 60 ° C. or higher, particularly 70 ° C. or higher.

  In the following examples, pH indicates a value at 25 ° C. when diluted 20 times by weight with water.

Production Example 1 Preparation of ginger (ginger) extract Shredded ginger rhizome, add 100 ml of water and ethanol mixture (50:50) to 10 g of the ginger, and mix at room temperature with occasional stirring. After time extraction, it was filtered. This was left to stand at 5 ° C. for 7 days for aging, and the resulting sediment and precipitate were filtered. Next, 100 ml of water was added thereto, and the operation of concentrating to about 70 ml under reduced pressure at 40 ° C. was performed three times. Then, water and ethanol were added, the ethanol concentration was 50 v / v%, and the dry weight of the extract was 0.5% by weight. Dilution or concentration was performed so that

Production Example 2 Preparation of Lily Extract After chopping a lily bulb, add 100 ml of a mixture of water and 1,3-butanediol (50:50) to 10 g of the lily bulb, and extract for 24 hours at room temperature with occasional stirring. And filtered. This was left to stand at 5 ° C. for 7 days for aging, and the resulting sediment and precipitate were filtered. Next, 100 ml of water was added thereto, and the operation of concentrating to about 70 ml under reduced pressure at 40 ° C. was performed three times. Then, water and 1,3-butanediol were added, and the concentration of 1,3-butanediol was 50 v / v. %, And the extract was diluted or concentrated so that the dry weight of the extract was 0.5% by weight.

Production Example 3 Preparation of loquat leaf extract Shredded loquat leaves, 100 ml of a mixture of water and 1,3-butanediol (10:90) are added to 10 g of the loquat leaves, and extracted for 24 hours with occasional stirring at room temperature. And then filtered. This was left to stand at 5 ° C. for 7 days for aging, and the resulting sediment and precipitate were filtered. Next, 100 ml of water was added thereto, and the operation of concentrating to about 70 ml under reduced pressure at 40 ° C. was performed three times. Then, water and 1,3-butanediol were added, and the 1,3-butanediol concentration was 90 v / v. %, And the dry weight of the extract was diluted or concentrated to 0.5 wt%.

Example 1
Hair cosmetics shown in Table 2 were prepared and evaluated for "setability", "harshness and elasticity improvement effect", "solidity", "feel", "shine" and "harness and stiffness improvement effect after continuous use". Went. These results are shown in Table 2.

(Evaluation methods)
Evaluation of “Setability” 1) Evaluation hair bundles Using a Japanese woman's hair that has not undergone chemical treatment such as perm, hair color, etc., make a hair bundle that is 10 cm long, 1.5 cm wide and 1 g in weight, and then bleached. The treatment (manufactured by Kao Corporation, using Rabinas Color Appeal Inazuma Bleach) is performed twice to obtain a set evaluation hair bundle.

2) Treatment of hair bundles ・ Evaluation before washing (7 times treatment)
After shampooing the evaluation hair bundle (Kao Co., Ltd., Rabinus Designing Shampoo), towel drying, 0.1 g of the product of the present invention or a comparative product (hereinafter referred to as “treatment agent”) is uniformly applied and heated with hot air at 70 ° C. Let dry for minutes. This process was repeated a total of 6 times. Next, after applying shampoo, towel drying and treatment agent in the same manner as described above, the hair bundle was wound around a cylinder having a diameter of 4 cm and dried with hot air at 70 ° C. for 10 minutes.

-Evaluation after hair washing By evaluating the set retention after washing the treatment agent on the hair surface, the effect of modifying the inside of the hair was examined. After completion of the pre-shampoo evaluation, each hair bundle was shampooed and towel-dried, wound around a 4 cm diameter cylinder without a treatment agent, and dried with hot air at 70 ° C. for 10 minutes.

3) Evaluation procedure and criteria The set hair bundle was removed from the cylinder, and the hair bundle was separated by passing the comb (ring comb) 20 times. This was suspended in a constant temperature and humidity box (25 ° C., 98% RH), and the set holding power was judged. Judgment measures the length of the suspended hair bundle (distance from the bundled part to the tip of the hair) and sets the length of the hair bundle just after hanging the set retention rate 100%, the original hair bundle without curl The length (10 cm) was defined as the set retention rate of 0%, and the relative value (%) of the length of the hair bundle after 30 minutes, that is, the set retention rate was determined by the following formula.

Evaluation of “Hariness / Stiffness Improvement”, “Smoothness”, “Feel (Smoothness, Moistness, Softness, Stickiness, Stickiness)” and “Glossy” 1) Evaluation Hair bundle Chemical treatment such as perm, hair color, etc. Using a Japanese woman's hair that has not been used, make a hair bundle of length 25cm and weight 6g, and then perform a bleach treatment (using Kabinsha's Rabinus Color Appeal Inazuma Bleach) twice as an evaluation hair bundle.

2) Treatment of hair bundles ・ Evaluation before shampooing Evaluation hair bundles are shampooed (Kao Co., Ltd., Ravenous Designing Shampoo), towel-dried, 0.6 g of treatment agent is uniformly applied, and ring comb is applied with hot air at 70 ° C. Used to dry for 10 minutes while combing. This process was repeated a total of 7 times.

・ Evaluation after hair washing In order to examine the effect of modifying the inside of the hair, each hair bundle for which the above pre-wash evaluation has been completed is shampooed, towel-dried, and combed using a ring comb with hot air of 70 ° C. for 10 minutes. Dried.

3) Evaluation criteria Sensory evaluation was performed according to the criteria shown in Table 1 by five expert panelists, and the average value of the evaluation points is shown in Table 2.

Evaluation of “effect of improving elasticity and elasticity after continuous use” Panelists of 10 women were divided into two groups each using the product 1 of the present invention and the comparative product 1. After washing each hair, about 10g of each treatment was applied to the entire hair and scalp for 1 month every day, then sensory evaluation was performed according to the criteria shown in Table 1, and the average value of the evaluation points is shown in Table 2. It was.

  From the above results, it can be confirmed that the present invention can achieve a good setting property, a firmness and stiffness improvement effect, a cohesiveness, and a feeling improvement effect without being stiff or sticky like the existing technology. It was. In addition, the effect was maintained even after the surface adhering components were removed by shampooing, and the effect of modifying the hair such as the absence of cavities inside the hair was confirmed.

Example 2 (pump spray)
(weight%)
Malic acid 4.0
Stearyltrimethylammonium chloride 0.25
Glycerin 1.0
2-Benzyloxyethanol 2.5
Ethanol 4.5
Ginger extract (Production Example 1, 0.5% by weight of extract) 7.0
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 3 (pump mist)
(weight%)
Malic acid 3.5
Malonic acid 1.0
2-Benzyloxyethanol 2.5
Polyvinylpyrrolidone 3.0
Ethanol 10.0
Lily extract (Production Example 2, 0.5% by weight of extract) 7.0
Loquat leaf extract (Production Example 3, 0.5% by weight of extract) 5.0
Fragrance 0.05
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 4 (hair gel)
(weight%)
Malic acid 2.5
Succinic acid 1.5
Glycerin 2.0
2-Benzyloxyethanol 2.5
Hydroxyethyl cellulose 2.0
Ethanol 10.0
Ginger Extract (Production Example 1, 0.5% by weight of extract) 6.0
Lily extract (Production Example 2, 0.5% by weight of extract) 6.0
Fragrance 0.05
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 5 (hair lotion)
(weight%)
Malic acid 4.0
Lactic acid 1.0
Glycerin 1.0
2-Benzyloxyethanol 2.5
Ethanol 10.0
Ginger Extract (Production Example 1, 0.5% by weight of extract) 5.0
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 6 (hair lotion)
(weight%)
Malic acid 2.5
Lactic acid 2.5
2-Benzyloxyethanol 2.5
Stearyl trimethylammonium chloride 0.1
Polyethylene glycol 400 0.45
Ethanol 4.5
Lily extract (Production Example 2, 0.5% by weight of extract) 6.0
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 7 (pump foam)
(weight%)
Malic acid 2.5
Lactic acid 2.5
Polyoxyethylene lauryl ether (16E.O.) 1.0
Stearyl trimethylammonium chloride 0.1
Glycerin 1.0
2-Benzyloxyethanol 2.5
Ethanol 4.5
Ginger extract (Production Example 1, 0.5% by weight of extract) 3.0
Loquat leaf extract (Production Example 3, 0.5% by weight of extract) 2.0
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Claims (5)

The following components (A), (B) and (C)
(A) C2-C8 organic dicarboxylic acid or salt thereof
(B) An organic solvent selected from the group consisting of aromatic alcohol, N-alkylpyrrolidone, alkylene carbonate, polypropylene glycol, lactone and cyclic ketone, wherein ClogP is −2 to 3.
(C) A non-washing-type hair cosmetic containing a ceramide production promoter and having a pH of 2 to 5 at 25 ° C. when diluted 20 times by weight with water.   The hair cosmetic according to claim 1, further comprising a set polymer.   The hair cosmetic according to claim 1 or 2, further comprising a conditioning component selected from silicones and oils.   Furthermore, the hair cosmetics in any one of Claims 1-3 containing a cationic surfactant.   The hair modification method which processes hair using the hair cosmetics in any one of Claims 1-4.