JP2004189727A - Hair cosmetics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-washing-type hair cosmetic which essentially modifies hair, improves the gloss and cohesion of the hair, and is excellent in feel.
SOLUTION: An organic material selected from the group consisting of (a) malic acid or a salt thereof, (b) lactic acid or a salt thereof, (c) aromatic alcohol, N-alkylpyrrolidone, alkylene carbonate, polypropylene glycol, lactone and cyclic ketone. Non-washable hair cosmetics containing solvents.
[Selection diagram] None

Description

  TECHNICAL FIELD The present invention relates to a non-washable type hair cosmetic which improves gloss, cohesion and feel of hair.

  In recent years, due to the effects of chemical treatments such as hair coloring and physical treatments such as blowing, cuticles on the surface of the hair have peeled off, and cavitation inside the hair due to outflow of lipids inside the hair has occurred. It is said that poor finger passage, untidy hair, and loss of luster occur.

  Non-washable hair cosmetics that are currently mainly used include hair creams containing wax, higher alcohols, surfactants, etc. to impart cohesiveness to the hair and to prevent stickiness. There are emulsified products or gels containing a film-forming polymer (set polymer). Such hair cosmetics can temporarily solve problems such as poor cohesion and looseness by attaching oils and fats and polymers to the hair surface, but essentially reduce the gloss and cohesion of hair. It could not be improved.

  Some hair cosmetics for the purpose of modifying hair are known, but those using specific organic acids and organic solvents are known as those which attempted to modify by acting on the inside of hair. (For example, see Patent Documents 1 to 4). These soften hard and unwieldy hair and promote hair lumps.

JP-A-7-112921 JP-A-6-172131 JP-A-9-301831 JP-A-6-298625

  SUMMARY OF THE INVENTION An object of the present invention is to provide a hair cosmetic of the type which substantially improves hair, improves the gloss and cohesion of the hair, and has an excellent touch and is not washed away.

  The present inventors, (a) malic acid or a salt thereof, (b) lactic acid or a salt thereof, and (c) an aromatic alcohol, N-alkylpyrrolidone, alkylene carbonate, polypropylene glycol, lactone and cyclic ketone organic selected from By applying a non-washable type hair cosmetic containing a solvent to the hair, it is found that the gloss of the hair gradually improves, and the set retention, cohesiveness and feel especially in high humidity are improved. Was.

That is, the present invention comprises the following components (a) to (c)
(a) Malic acid or a salt thereof
(b) Lactic acid or its salt
(c) An object of the present invention is to provide a non-washable type hair cosmetic containing an organic solvent selected from the group consisting of aromatic alcohol, N-alkylpyrrolidone, alkylene carbonate, polypropylene glycol, lactone and cyclic ketone.

  ADVANTAGE OF THE INVENTION The hair cosmetics of this invention are excellent in the effect which improves hair glossiness, unity, and feel essentially by modifying hair.

  The content of malic acid or a salt thereof of component (a) (amount as malic acid) is 0.1 to 30% by weight in the hair cosmetic composition of the present invention in view of improving hair gloss, cohesiveness, and setting properties. %, More preferably 0.5 to 20% by weight, especially 0.5 to 10% by weight.

  The content of the lactic acid or the salt thereof (the amount as lactic acid) of the component (b) is from the viewpoint of improving the gloss of the hair, improving the flexibility of the hair, improving the cohesiveness, and preventing the hair from sticking. It is preferably 0.01 to 30% by weight, more preferably 0.1 to 20% by weight, particularly preferably 0.5 to 10% by weight.

  The component (c) includes an organic solvent selected from the following (c1) to (c5).

  (c1) a compound represented by the 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 group having 1 to 3 carbon atoms. A hydrocarbon group, Ph; a paraphenylene group), Y ¹ and Y ^{2 each} represent a hydrogen atom or a hydroxyl group, and p, q and r each represent an integer of 0-5. However, when p = q = 0, Y ¹ is a hydroxyl group, and R ¹ is not a group R ² -Ph-. ]

  (c2) N-alkyl or N-alkenylpyrrolidone in which an alkyl group or alkenyl group having 1 to 18 carbon atoms is bonded to a nitrogen atom

  (c3) Ethylene carbonate or propylene carbonate

  (c4) polypropylene glycol having a number average molecular weight of 200 to 5000, preferably 200 to 1000

  (c5) Lactone or cyclic ketone represented by general formula (2), (3) or (4)

[In the formula, 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 (c), examples of (c1) include benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol, and the like. . (c2) includes N-methylpyrrolidone, N-octylpyrrolidone, N-laurylpyrrolidone and the like. In (c5), R ⁴ and R ⁵ in the general formulas (2) to (4) represent a linear, branched or cyclic alkyl group, a hydroxyl group, a sulfonic acid group, a phosphoric acid group, a carboxy group, and a phenyl group. , A sulfoalkyl group, an alkyl phosphate group, a carboxyalkyl group, and the like are preferable. Among them, γ-lactone is substituted at γ-position, and δ-lactone is substituted at δ-position (that is, methylene adjacent to a hetero oxygen atom). And a linear or branched alkyl group having 1 to 6 carbon atoms, such as a methyl group, an ethyl group, a propyl group, an isopropyl group, and a butyl group. 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, and a carboxy group and an alkyl group substituted by these groups. Is preferred. Among (c5), lactones include γ-butyrolactone, γ-caprolactone, γ-valerolactone, δ-valerolactone, δ-caprolactone, δ-heptanolactone, etc., from the viewpoint of the stability of the lactone. Γ-lactone, particularly γ-butyrolactone and γ-caprolactone are preferred. Examples of the cyclic ketone include cyclopentanone, cyclohexanone, cycloheptanone, 4-methylcycloheptanone, and the like. Particularly preferred components (c) include benzyl alcohol, benzyloxyethanol, propylene carbonate and polypropylene glycol (number average molecular weight 300 to 500, especially 400).

  Further, the component (c) used in the present invention preferably has an octanol-water-partition coefficient (logP) at 25 ° C of -2 to 3, particularly -1 to 2, for promoting permeation. Here, logP is a measure of the distribution of a substance between the octanol phase and the aqueous phase, which is defined by the following equation, and is calculated by Chemical Reviews, Vol. 71, No. 6, (1971). Example values are provided. In the present invention, at 25 ° C, the method described in the Chemical Substances Control Law, Revised 4th Edition, "Method for measuring the distribution coefficient (1-octanol / water) of chemical substances <1>" (published by Chemical Daily) Means the value measured in.

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

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

  Specific examples of logP of the main component (c) include benzyl alcohol (1.1), 2-benzyloxyethanol (1.2), 2-phenylethanol (1.2), 1-phenoxy-2-propanol (1.1), and polypropylene. Glycol 400 (0.9), propylene carbonate (-0.41), and γ-butyrolactone (-0.64).

  Component (c) is preferably a liquid at 25 ° C., and may be used in combination of two or more kinds thereof. From the viewpoint of improving the properties, etc.), the amount is preferably 0.1 to 40% by weight, more preferably 0.5 to 10% by weight, particularly preferably 1 to 5% by weight in the hair cosmetic composition of the present invention.

  Malic acid or a salt thereof, which is component (a), has a high effect of improving the interior of hair (such as repairing cavities), and has a high effect of improving set holding and cohesion, but hardens or becomes stiff. Has a feel problem. On the other hand, lactic acid or a salt thereof, which is the component (b), has an effect of improving the interior of the hair, but has a setting and is slightly inferior to the component (a) in improving the unity. However, the effect of improving the feel (smooth and moist) is excellent, and when both are used together, a high hair modifying effect (setting property and luster) and a good effect of improving the feel are simultaneously achieved. Component (a) and component (b) preferably have a weight ratio as an acid of 10/1 to 1/10, more preferably 4/1 to 1/4. As the salt, a water-soluble salt such as a sodium salt can be used as appropriate.

  Furthermore, the hair cosmetic of the present invention can contain ethanol. Ethanol contributes to solubilization or stable dispersion of component (c). It also contributes to the solubilization of components (a) and (b), which promotes penetration into the hair. The content of ethanol is preferably 0.01 to 50% by weight, particularly preferably 1 to 20% by weight in the hair cosmetic composition of the present invention. Further, it is preferable from the viewpoint of stability that the content of ethanol is a weight ratio of ethanol / component (c) = 40/1 to 2/1 in relation to the content of component (c).

  The hair cosmetic composition of the present invention further contains a set polymer from the viewpoints of hair styling properties, improvement in adhesion to hair and feel, early expression of hair modification effects, and viscosity adjustment and stability of the composition. You may. Examples of such a polymer include polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymer, vinylpyrrolidone / vinyl acetate / vinyl propionate terpolymer, vinylpyrrolidone / alkylaminoacrylate (quaternary chloride) copolymer, vinyl Polyvinylpyrrolidone-based polymer compounds such as pyrrolidone / acrylate / (meth) acrylic acid copolymer, vinylpyrrolidone / alkylaminoacrylate / vinylcaprolactam copolymer; acidic vinyl ethers such as methyl vinyl ether / alkyl maleic anhydride half ester copolymer Acidic polyvinyl acetate polymer compounds such as vinyl acetate / crotonic acid copolymer, vinyl acetate / crotonic acid / vinyl neodecanoate copolymer, and vinyl acetate / crotonic acid / vinyl propionate copolymer; Acidic acrylic polymer compounds such as (meth) acrylic acid / (meth) acrylic acid ester copolymers, acrylic acid / alkyl acrylate / alkylacrylamide copolymers; 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 / acrylester quaternary copolymer A basic acrylic polymer compound such as a combination; a cellulose derivative such as a cationic cellulose derivative; a chitin / chitosan derivative such as hydroxypropyl chitosan, carboxymethyl chitin, and carboxymethyl chitosan. Among these set polymers, a cationic polymer and an amphoteric polymer are preferable, and a cationic polymer is more preferable, from the viewpoint of improving the feel and early expression of the hair modifying effect.

  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 preferably 0.5 to 5% by weight in the hair cosmetic of the present invention.

The hair cosmetic composition of the present invention may contain 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, and cyclic Examples include silicone and alkyl-modified silicone. Among them, dimethylpolysiloxane, polyether-modified silicone and amino-modified silicone are preferred. 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 performance required. 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, depending on the desired feel. mm ² / s, particularly preferably 50,000 to 10 million mm ² / s. Polyether-modified silicone is a general term for polyoxyethylene / methylpolysiloxane copolymers and poly (oxyethylene / oxypropylene) methylpolysiloxane copolymers, and those having various HLB are known. Examples of the products include silicone KF351A, KF353A, KF6008, KF6016, KF6011, KF6012, and SH3771C, 3773C, 3775C of Dow Corning Toray Silicone, manufactured by Shin-Etsu Chemical Co., Ltd. Amodimethicone oil or an emulsion thereof is preferable as the amino-modified silicone, and commercially available products include amodimethicone emulsion SM8704C of Dow Corning Toray Silicone Co., Ltd., and KT-1989 and XF42-B1989 of Toshiba Silicone Co., Ltd. Can be

  The content of silicones is preferably from 0.05 to 20% by weight, more preferably from 0.1 to 10% by weight, especially from 0.5 to 5% by weight in the hair cosmetic composition of the present invention from the viewpoint of finger sticking and non-stickiness. Is preferred.

  The oil agent 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, spermaceti, 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, isostearic acid, and isopalmitic acid; and other isostearyl glyceryl ethers And polyoxypropylene butyl ether. Among them, 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 agent 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 cohesion and non-stickiness. preferable.

  The hair cosmetic composition of the present invention may contain a surfactant from the viewpoints of system stability including solubilization and dispersibility of a solvent, and improvement in feel. 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 a quaternary ammonium salt represented by the following general formula (5).

[Wherein, 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 a hydrogen atom or a benzyl group at the same time; Except when it becomes an alkyl group. Z ^- represents an anion. ]

Is preferably represented by Here, one of R ⁶ and R ⁷ is preferably an alkyl group having 16 to 24 carbon atoms, more preferably an alkyl group having 22 carbon atoms, particularly a straight-chain alkyl group, and the other is a lower alkyl group having 1 to 3 carbon atoms, particularly It is preferably a methyl group. Examples of the anion Z ^- include a halide ion such as a chloride ion and a bromide ion; an organic anion such as an ethyl sulfate ion and a methyl carbonate ion; and the like, and a halide ion, particularly a chloride ion, is preferred.

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

  Examples of the nonionic surfactant 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, and polyoxyethylene sorbitan fatty acid. Examples include esters, polyoxyethylene sorbite fatty acid esters, alkyl saccharide-based surfactants, alkylamine oxides, and alkylamidoamine oxides. Among these, polyoxyalkylene alkyl ether and polyoxyethylene hydrogenated castor oil are preferred, and polyoxyethylene alkyl ether is particularly preferred.

  Examples of the amphoteric surfactant include imidazoline-based, carbobetaine-based, amidobetaine-based, sulfobetaine-based, hydroxysulfobetaine-based, and amidosulfobetaine-based surfactants.

  Examples of the anionic surfactant include alkyl benzene sulfonate, alkyl or alkenyl ether sulfate, alkyl or alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate, α-sulfone fatty acid salts, N-acylamino acid type surfactants, mono- or diester phosphate surfactants, sulfosuccinates and the like. Examples of the counter ion of the anionic residue of the surfactant include an alkali metal ion such as a sodium ion and a potassium ion; an alkaline earth metal ion such as a calcium ion and a magnesium ion; an ammonium ion; an alkanol group having 2 or 3 carbon atoms (E.g., 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, methosulfate ion, and saccharinate ion.

  Surfactants can be used alone or in combination of two or more. From the viewpoint of stability of the system including solubilization of the solvent and emulsification of the oil agent, the content thereof is set in the hair cosmetic of the present invention. It is preferably from 0.01 to 10% by weight, particularly preferably from 0.05 to 3% by weight.

  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 (c), and works synergistically with the component (c) to promote the improvement of the gloss and hair modifying effect. 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. Polyhydric alcohols can be used alone or in combination of two or more, and the content 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, the hair cosmetic of the present invention can contain (a) malic acid, (b) an organic carboxylic acid other than lactic acid, and an inorganic acid. Examples of the organic carboxylic acids include dicarboxylic acids such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, and phthalic acid.Hydroxycarboxylic acids include glycolic acid, hydroxyacrylic acid, and oxybutyric acid. Glyceric acid, citric acid and the like can be mentioned. Examples of the inorganic acid include phosphoric acid, sulfuric acid, and nitric acid. These can be contained at 0.001 to 10% by weight in the hair cosmetic composition of the present invention.

  The hair cosmetic composition of the present invention can be used without any problem as long as it is in the range of pH 1 to 7. However, from the viewpoint of improving the gloss of hair and improving the cohesiveness of hair, it is preferably used in a low pH range. The pH (25 ° C.) of the double-diluted solution is preferably in the range of 2.5 to 4.5, particularly preferably 3 to 4.2. For adjusting the pH, an inorganic acid and a basic substance such as sodium hydroxide and an organic amine are used in addition to the organic carboxylic acids other than the components (a) and (b).

  The hair cosmetic composition of the present invention may contain, in addition to the above components, components used in ordinary hair cosmetic compositions according to the purpose. Examples of such components include thickeners, anti-dandruff agents, vitamins, bactericides, anti-inflammatory agents, chelating agents, humectants (such as panthenol), pH adjusters, dyes, coloring agents such as pigments, Examples include a plant extract, a pearlizing agent, a fragrance, an ultraviolet absorber, an antioxidant, and a fragrance, and the remainder is water.

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

  The form of the hair cosmetic of the present invention can be appropriately selected from a liquid, a gel, a paste, and the like. However, as the solvent, water or a lower alcohol, particularly a liquid using water is preferable.

  The hair cosmetic of the present invention is preferably used as a hair styling agent, a hair conditioning agent and the like. Dosage forms include pump spray, aerosol spray, pump foam, aerosol foam, gel, lotion and the like.

Example 1 Evaluation on Hair Bundle:
The hair cosmetics shown in Tables 2 and 3 were prepared and evaluated for "setting properties", "stiffness and firmness improving effect", "cohesion", "feel", and "gloss". The results are shown in Tables 2 and 3.

(Evaluation method)
Evaluation of "set properties" 1) Evaluation hair bundle Using hair of a Japanese woman who has not been subjected to chemical treatment such as perm and hair color, a hair bundle of length 10cm, width 1.5cm and weight 1g is made and bleached. Perform the treatment twice (manufactured by Kao Corporation, using Ravinas Color Appeal Inazuma Bleach) twice to obtain a set evaluation hair bundle.

2) Hair bundle treatment ・ Evaluation before hair washing (7 times treatment)
After shampooing the evaluation hair bundle (Rabinas Designing Shampoo, manufactured by Kao Corporation) and drying with a towel, 0.1 g of the product of the present invention or a comparative product (hereinafter referred to as “treatment agent”) is evenly applied, and heated with 70 ° C. warm air at 10 ° C. Dried for minutes. This process was repeated a total of six times. Next, shampoo, towel drying and application of the treating agent were carried out in the same manner as described above, and then the hair bundle was wound around a cylinder having a diameter of 4 cm and dried with 70 ° C. warm air for 10 minutes.

・ Evaluation after hair washing The effect of modifying the inside of the hair was examined by evaluating the set retention after washing the treating agent on the hair surface. After the above-mentioned evaluation before shampooing, each hair bundle was shampooed and towel-dried, wound around a 4 cm-diameter cylinder without a treating agent, and dried with 70 ° C warm air for 10 minutes.

3) Evaluation procedure and criteria The set hair bundles were removed from the cylinder, and the hair bundles were separated by passing through a comb (ring comb) 20 times. This was hung in a thermo-hygrostat (25 ° C., 98% RH) to determine the set holding power. Judgment measures the length of the suspended hair bundle (the distance from the bundled portion to the hair tip), and sets the length of the hair bundle immediately after suspension to a set retention rate of 100%. The length (10 cm) is set to 0% and the relative value (%) of the length of the hair bundle after 30 minutes, that is, the set retention is expressed by the following formula.

And evaluated according to the following criteria.

◎: 90% or more ○: 60% or more and less than 90% △: 50% or more and less than 60% ×: less than 50%

Evaluation of "Hari and firmness improvement effect", "Cohesion", "Feeling (smoothness, moist feeling, softness, stiffness, stickiness)" and "Gloss" 1) Evaluation Hair treatment Perm, hair color, etc. A hair bundle of 25 cm in length and 6 g in weight is made using hair of a Japanese woman who has not performed the hair treatment, and a bleaching treatment (manufactured by Kao Corporation, using Ravinas Color Appeal Inazuma Bleach) is performed twice to obtain an evaluation hair bundle. .

2) Hair bundle treatment ・ Evaluation before shampooing The evaluation hair shampoo was shampooed (Ravinas Designing Shampoo, manufactured by Kao Corporation), towel-dried, and then 0.6 g of the treating agent was evenly applied. Dry for 10 minutes while combing. This process was repeated seven times in total.

・ Evaluation after shampooing To examine the internal modification effect of the hair, shampoo and towel dry each of the hair tresses that have been subjected to the above evaluation before shampooing, and shampoo with hot air at 70 ° C for 10 minutes while using a ring comb. Let dry.

3) Evaluation Criteria Sensory evaluation was performed by five expert panelists according to the criteria shown in Table 1, and ranking was performed based on the average of the evaluation points.

  From the above results, it can be confirmed that the present invention can achieve good setting properties, an effect of improving firmness and stiffness, an effect of improving cohesion, and an effect of improving feel without being stiff or sticky as in the existing technology. Was. In addition, the effect was maintained even after the components adhered to the surface were removed by washing the hair, and the effect of modifying the hair was confirmed, such as the elimination of voids inside the hair.

Example 2 Effect of Combination with Set Polymer (1):
For the hair cosmetics shown in Table 4, using the same evaluation hair bundle as that used for the evaluation of the setting property in Example 1, and after performing the following treatment, the hair cosmetics were set according to the same evaluation procedures and evaluation criteria as in Example 1. The sex was evaluated. Table 4 shows the evaluation results.

-Treatment of hair bundles Hair bundles (warm air drying) subjected to the same treatment as in the evaluation before set of hair washing (seven times treatment) in Example 1 and only the final stage of drying in the treatments were performed at room temperature (25 ° C). Two types of hair bundles (dried at room temperature) were prepared in the same manner except that the hair was dried by blowing air for 30 minutes.

  From the above results, it was confirmed that the addition of the set polymer improves the setability when dried at room temperature. Further, in Comparative product 4, the setting property was greatly reduced because the surface film was broken when the hair bundles were broken with a comb, but the present invention product has a setting effect because the hair itself has a modifying effect. there were.

Example 3 Effect of Combination with Set Polymer (2):
For the hair cosmetics shown in Table 5, using the same evaluation hair bundle as that used in the evaluation of the set properties in Example 1, the following treatment was performed, and then the hair cosmetics were set according to the same evaluation procedures and evaluation criteria as in Example 1. The sex was evaluated. Table 5 shows the evaluation results.

・ Evaluation before hair washing (1 treatment)
After the evaluation hair bundle was shampooed (Rabinas Designing Shampoo, manufactured by Kao Corporation), and towel-dried, 0.1 g of the treating agent was uniformly applied, wound around a 4 cm diameter cylinder, and dried with 70 ° C. warm air for 10 minutes. .

・ Evaluation before hair washing (3 times treatment)
After the evaluation hair bundle was shampooed and dried with a towel, 0.1 g of a treating agent was uniformly applied, and dried with 70 ° C. warm air for 10 minutes. This process was repeated twice. Next, after shampooing and applying the treating agent in the same manner as described above, it was wound around a cylinder having a diameter of 4 cm and dried with warm air at 70 ° C. for 10 minutes.

・ Evaluation before shampooing (7 times treatment)
The same processing as “Evaluation before shampooing (processing 7 times)” in Example 1 was performed.

・ Evaluation after hair washing After completion of the above three kinds of evaluation before hair washing, each hair bundle is shampooed, towel-dried, wound around a 4 cm diameter cylinder without applying a treating agent, and dried with 70 ° C. warm air for 10 minutes. Was.

  From the above results, it was confirmed that the addition of the set polymer improves the setability before and after shampooing with a small number of treatments. This also suggests that the effect of modifying the hair itself is promoted by the addition of the polymer.

Example 4 Actual use evaluation:
Invention product 15
(weight%)
Malic acid 2.5
Lactic acid 2.5
Stearyl trimethyl ammonium chloride 0.25
Polyoxyethylene hydrogenated castor oil (60E.O.) 0.2
Trimethylglycine 0.2
2-benzyloxyethanol 2.5
Ethanol 10.0
Fragrance 0.05
Water Remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7 The hair cosmetics of the present invention product 15 was placed in a pump mist container and used by the following panelists.

(1) A woman who suffers from hair color damage and habits:
Spray the hair after washing in the bath and dry the hair with a brush, then apply it with a brush, and finish it with a brush blow using a dryer. When used in this way for 5 days, the following effects were obtained: hair was cleanly dressed, sprout of hair tips, no floating hair, no gloss, no stickiness and smooth feel.

(2) Women who had a wave perm about a month ago:
Spray on the hair that has been washed out of the bath after washing the towels, apply it with a brush, and then dry it with a dryer. When used in such a manner for 5 days, the following effects were obtained: a clean perm wave, a gloss, a smooth feel without any noticeable touch.

(3) Women who are aging and have a hair color that lacks firmness and lack of volume:
Spray on the hair that has been washed out of the bath after washing the towels, apply it with a brush, and then dry it with a dryer. When used in such a manner for 5 days, the following effects were obtained: firmness and firmness, and the hair was fine, the volume was soft and fluffy, and the hair was shiny.

Example 5 (pump spray)
(weight%)
Malic acid 2.50
Lactic acid 2.50
Stearyl trimethyl ammonium chloride 0.25
Glycerin 1.00
2-benzyloxyethanol 2.50
Ethanol 4.50
Fragrance 0.02
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 6 (pump mist)
(weight%)
Malic acid 4.00
Lactic acid1.00
2-benzyloxyethanol 2.50
Polyvinyl pyrrolidone 3.00
Ethanol 10.00
Fragrance 0.05
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 7 (hair gel)
(weight%)
Malic acid 2.50
Lactic acid 2.50
Glycerin 2.00
Stearyl trimethyl ammonium chloride 0.25
2-benzyloxyethanol 2.50
Hydroxyethyl cellulose 2.00
Ethanol 10.00
Fragrance 0.05
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 8 (Hair lotion)
(weight%)
Malic acid 1.00
Lactic acid 4.00
Stearyl trimethyl ammonium chloride 0.25
Glycerin 1.00
2-benzyloxyethanol 2.50
Ethanol 10.00
Fragrance 0.02
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 9 (aerosol spray)
(weight%)
<Stock solution>
Malic acid 2.50
Lactic acid 2.50
Stearyl trimethyl ammonium chloride 0.25
Glycerin 1.00
2-benzyloxyethanol 2.50
Ethanol 4.50
Fragrance 0.02
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7 <Propellant>
Nitrogen gas <stock solution / propellant ratio> 99.50 / 0.50

Example 10 (pump foam)
(weight%)
Malic acid 2.50
Lactic acid 2.50
Polyoxyethylene lauryl ether (16E.O.) 1.00
Stearyl trimethyl ammonium chloride 0.25
Glycerin 1.00
2-benzyloxyethanol 2.50
Ethanol 4.50
Fragrance 0.02
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7

Example 11 (aerosol foam)
(weight%)
<Stock solution>
Malic acid 4.00
Lactic acid1.00
Polyoxyethylene lauryl ether (16E.O.) 1.00
Stearyl trimethyl ammonium chloride 0.25
Glycerin 1.00
2-benzyloxyethanol 2.50
Ethanol 4.50
Fragrance 0.02
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7 <Propellant>
LPG (0.44Mpa)
<Stock solution / propellant ratio> 93.00 / 7.00

Example 12 (Hair lotion)
(weight%)
Malic acid 2.5
Lactic acid 2.5
2-benzyloxyethanol 2.5
Stearyl trimethyl ammonium chloride 0.25
Polyethylene glycol 400 0.45
Ethanol 4.5
Water remaining amount Sodium hydroxide (pH adjuster) Adjusted to pH 3.7 The hair cosmetic composition of the present invention is excellent in the effect of essentially modifying the hair and improving the gloss, cohesiveness, and feel of the hair.

Claims (5)

The following components (a) to (c)
(a) Malic acid or a salt thereof
(b) Lactic acid or its salt
(c) Non-washable hair cosmetics containing an organic solvent selected from the group consisting of aromatic alcohols, N-alkylpyrrolidones, alkylene carbonates, polypropylene glycols, lactones and cyclic ketones.   The hair cosmetic according to claim 1, wherein the weight ratio (as acid) of (a) malic acid or a salt thereof and (b) lactic acid or a salt thereof is 10/1 to 1/10.   The hair cosmetic according to claim 1 or 2, further comprising a set polymer.   The hair cosmetic according to any one of claims 1 to 3, further comprising an oil agent.   A hair modification method comprising heating the hair cosmetic composition according to any one of claims 1 to 4 and then heating the hair.