JP2005272394A - Hair cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair cosmetic which modifies the hair essentially, improves the luster and collectability of the hair, is excellent in the sense of touch, and is of a type not requiring to be washed away. <P>SOLUTION: The hair cosmetic of a type not requiring to be washed away contains (A) citric acid or its salt, (B) an organic solvent selected from the group consisting of an aromatic alcohol, an N-alkylpyrrolidone, an alkylene carbonate, polypropylene glycol, a lactone, and a cyclic ketone and having a ClogP of -2 to 3, and (C) a vitamin selected from vitamin B, provitamin B, and vitamin C. When diluted with water up to 20 times by weight, the cosmetic exhibits a pH of 2-5 at 25°C. A hair modification method using the cosmetic to treat the hair is also provided. <P>COPYRIGHT: (C)2006,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.

  On the other hand, several hair cosmetics aimed at modifying hair are known. In particular, those using specific organic acids and organic solvents are known as attempts to modify the hair by acting on the inside (see, for example, Patent Documents 1 to 4). These soften hard and hard-to-handle hair and promote hair unity.

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

  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, cohesiveness, and setting power of the hair and is excellent in touch.

  The present inventors further promoted the penetration of citric acid and organic solvent into hair by further blending specific vitamins into the hair cosmetic containing citric acid and an organic solvent that promotes penetration. It has also been found that when the class itself permeates into the hair at the same time, the firmness, firmness, moist and moist feeling of the hair is further improved, and a good gloss is imparted to the hair.

That is, the present invention comprises the following components (A), (B) and (C)
(A) Citric acid or its salt
(B) One or more organic solvents 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) Non-washing type hair makeup containing vitamins selected from vitamin B, provitamin B and vitamin C and having a pH of 2 to 5 at 25 ° C. when diluted 20 times by weight with water A fee is provided.

  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 moisture of the hair.

  The hair cosmetic composition of the present invention may be damaged by repeated coloring, perming, and excessive drying of the hair dryer, and it can be applied to hair that tends to dry and dry, giving the hair a glossy, cohesive, and good feel. it can.

  Among the components (A), examples of the salt of citric acid include salts with alkali metals, alkaline earth metals, ammonia, and organic amine compounds. The content of the citric acid or salt thereof as component (A) is 0.01 to 30 in the hair cosmetic composition of the present invention from the viewpoint of the effect of internal modification (such as cavity repair) of the hair, the effect of improving the set durability, and the effect of improving the unity. % By weight is preferable, further 0.1 to 20% by weight, particularly 0.5 to 10% by weight is preferable.

  The organic solvent of component (B) is selected from the group consisting of aromatic alcohol, N-alkylpyrrolidone, alkylene carbonate, polypropylene glycol, lactone and cyclic ketone, and the following (b1) to (b5) are mentioned respectively. It is done.

  (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. ]

  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. (b4) Polypropylene glycol having a number average molecular weight of 100 to 500, particularly 300 to 500 is 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 and the like are preferable. When (b5) is a lactone, γ-lactone and δ-lactone are preferred. That is, as lactone, a linear or branched alkyl group having 1 to 6 carbon atoms (methyl group, ethyl group, propyl group, isopropyl group, butyl group, etc.) as R ⁴ or R ⁵ is adjacent to a hetero oxygen atom. Those substituted with methylene are preferred. When it is desired to increase the water solubility of the lactone or cyclic ketone represented by the general formulas (2) to (4), R ⁴ or R ⁵ is an acidic group such as a sulfonic acid group, a phosphoric acid group, or a carboxy group. And these preferably have a substituted alkyl group. Specifically, examples of the lactone include γ-butyrolactone, γ-caprolactone, γ-valerolactone, δ-valerolactone, δ-caprolactone, and δ-heptanolactone. Of these, γ-lactone, particularly γ-butyrolactone and γ-caprolactone are preferred. Examples of the cyclic ketone include cyclopentanone, cyclohexanone, cycloheptanone, 4-methylcycloheptanone and the like.

  Component (B) is preferably a liquid at 25 ° C. Furthermore, the component (B) needs to have ClogP of −2 to 3, and is preferably −1 to 2 from the viewpoint of promoting penetration. 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).

  As component (B), benzyl alcohol, 2-benzyloxyethanol, propylene carbonate and polypropylene glycol (particularly number average molecular weight 400) are preferred.

  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 vitamin (C) is selected from vitamins B, provitamins B and vitamins C. Vitamin Bs and provitamins B include thiamine, thiamine hydrochloride, thiamine nitrate, riboflavin, sodium riboflavin, nicotinic acid, nicotinamide, pantothenic acid, calcium pantothenate, pantothenyl alcohol (panthenol), pantothenic acid Examples include esters, pantothenyl ethyl ether, pyridoxine, pyridoxine hydrochloride, cyanocobalamin, folic acid, biotin, and the like. Examples of vitamin C include ascorbic acid, sodium ascorbate, ascorbyl palmitate and the like. Among these vitamins, nicotinamide, pantothenyl alcohol, pantothenic acid ester, pantothenyl ethyl ether, and ascorbic acid are preferable, and pantothenyl alcohol, pantothenic acid ester, and pantothenyl ethyl ether are particularly preferable. These promote the penetration of the component (A) and the component (B) into the hair, and the vitamins permeate into the hair at the same time, thereby further enhancing the firmness, firmness, moisture, etc. of the hair. It will improve.

  Ingredient (C) may be used in combination of two or more, and the content thereof is 0.001 to in the hair cosmetic composition of the present invention from the viewpoints of feeling of use, improvement of hair cohesiveness, moist feeling and moisturizing. It is preferably 10% by weight, more preferably 0.01 to 5% by weight, and particularly preferably 0.1 to 2% by weight.

  The weight ratio of the component (A) citric acid or its salt and the component (B) organic solvent is effective to effectively improve the hair's internal reforming (such as cavity repair) effect, set-holding improvement, and unity improvement effect. Further, (A) :( B) = 10: 1 to 1: 7, particularly 4: 1 to 1: 3 is preferable.

  The weight ratio of the component (A) citric acid or its salt to the component (C) vitamins effectively expresses the feel improvement effect (moist feeling, moist feeling) and the hair modification effect (setting properties and gloss). Therefore, it is preferable that (A) :( C) = 2000: 1 to 1: 1, particularly 500: 1 to 2: 1.

  Furthermore, the hair cosmetic composition of the present invention can contain ethanol for solubilization or stable dispersion of the component (B). Ethanol further contributes to solubilization of components (A) and (C), which promotes penetration into the hair. 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.

  In addition, 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, methylphenylpolysiloxane, cyclic silicone, polyether-modified silicone, amino-modified silicone, carboxy-modified silicone, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy-modified silicone, and fluorine-modified. Examples include silicone and alkyl-modified silicone. Of these, dimethylpolysiloxane, polyether-modified silicone, and amino-modified silicone are preferable.

Depending on the desired feel, dimethylpolysiloxane can be used from a viscosity of about 5 mm ² / s to a viscosity of about 10 million mm ² / s, which is often supplied as an emulsion. From the viewpoint of imparting properties, it is preferable to have a thickness of 5,000 to 1,000,000 mm ² / s, particularly 50,000 to 10,000,000 mm ² / s.

  Polyether-modified silicone is a general term for polyoxyethylene / methylpolysiloxane copolymer and poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer, and can impart smoothness to hair. Polyether-modified silicones are known to have various HLBs, and commercially available silicones KF351A, KF353A, KF6008, KF6016, KF6011, KF6011, KF6012, Toray Dow Corning -Silicone SH3771C, 3773C, 3775C, etc.

  The amino-modified silicone is preferably amodimethicone oil or an emulsion thereof because it can impart a moist feeling to the hair. Commercially available products include amodimethicone emulsion SM8704C from Toray Dow Corning Silicone Co., Ltd. and KT from Toshiba Silicone Co., Ltd. -1989, XF42-B1989, etc.

  In the present invention, various silicones can be used alone or in combination of two or more depending on the desired performance. 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

  The oil is used to improve the feeling of unity of the hair after drying. Oils include hydrocarbons such as squalene, squalane, liquid isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, α-olefin oligomer, liquid paraffin, 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. Of these, branched hydrocarbons such as squalene, squalane, liquid isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, α-olefin oligomer and the like are particularly preferable.

  The oil agent can be used alone or in combination of two or more, and the content thereof is preferably 0.05 to 20% by weight in the hair cosmetic composition of the present invention from the viewpoint of good unity and no stickiness. Is preferably 0.1 to 10% by weight, more preferably 0.5 to 5% by weight.

  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; vitamins other than component (C); bactericides; anti-inflammatory agents; antiseptics; chelating agents; moisturizers; coloring agents such as dyes and pigments; Viscosity modifiers such as polyethylene glycol and clay minerals; pH modifiers 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 osmotic adsorption of the components (A) and (B) to the hair, and also provides pH (20% by weight with water) from the viewpoint of imparting gloss, flexibility, cohesion, and suppleness to the hair. (25 [deg.] C. when diluted to 2 times) is adjusted to 2-5, preferably pH 2.5-4, especially pH 3-4.

  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.

Example 1
The hair cosmetics shown in Table 2 were prepared and evaluated for “setting property”, “concentration improvement effect”, “cohesiveness”, “feel” and “gloss”. 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 the shampoo, towel drying, and application of the treatment agent (seventh time) as described above, the hair bundle was wound around a cylinder with 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”, “Feeling (Smoothness, Moistness, Moistness, Stiffness, Stickiness)” and “Glossy” 1) Evaluation Hair bundle Chemical treatment such as perm, hair color 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 bleaching treatment (made by Kao, using Rabinas 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.

  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%)
Citric acid 6.0
Stearyltrimethylammonium chloride 0.25
Glycerin 1.0
2-Benzyloxyethanol 2.5
Ethanol 4.5
DL-Pantenyl alcohol 1.2
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 3 (pump mist)
(weight%)
Citric acid 4.5
Malonic acid 1.5
2-Benzyloxyethanol 2.5
Polyvinylpyrrolidone 3.0
Ethanol 10.0
DL-pantothenyl alcohol 1.0
Pantothenyl ethyl ether 0.05
Fragrance 0.05
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 4 (hair gel)
(weight%)
Citric acid 3.5
Malic acid 1.5
Glycerin 2.0
2-Benzyloxyethanol 2.5
Hydroxyethyl cellulose 2.0
Ethanol 10.0
Nicotinamide 0.8
Fragrance 0.05
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 5 (hair lotion)
(weight%)
Citric acid 5.0
Lactic acid 1.0
Glycerin 1.0
2-Benzyloxyethanol 2.5
Ethanol 10.0
Ascorbic acid 0.8
DL-Pantenyl alcohol 0.2
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 6 (hair lotion)
(weight%)
Citric acid 5.5
2-Benzyloxyethanol 2.5
Stearyl trimethylammonium chloride 0.1
Polyethylene glycol 400 0.45
Ethanol 4.5
DL-Pantenyl alcohol 0.8
Nicotinamide 0.2
Perfume 0.02
Residual amount of water Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 7 (pump foam)
(weight%)
Citric acid 3.5
Lactic acid 1.5
Polyoxyethylene lauryl ether (16E.O.) 1.0
Stearyl trimethylammonium chloride 0.1
Glycerin 1.0
2-Benzyloxyethanol 2.5
Ethanol 4.5
DL-Pantenyl alcohol 1.0
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) Citric acid or its salt
(B) One or more organic solvents 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) Contains one or more vitamins selected from the group consisting of vitamin B, provitamin B and vitamin C, and has a pH of 2 at 25 ° C when diluted 20 times by weight with water. A hair cosmetic of a type which is ˜5 which is not washed away.   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.