JP7304209B2 - hair styling composition - Google Patents

Description

The present invention relates to a hair styling composition.

Various types of hair styling compositions such as liquids, gels, creams and solids are known for conditioning hair. Conventionally, in hair styling compositions, film-forming polymers, waxes that are solid at room temperature, oils and fats, and hydrocarbon oils are often used as hair styling components for exerting hair styling power, which is the main function of hair styling compositions (for example, Patent Document 1, Patent Document 2).

JP-A-11-171740 JP-A-10-45546

However, no hair styling composition using α-ketoglutaric acid as a hair styling component is known.

In addition, when hair is styled using a hair styling agent composition containing conventional hair styling ingredients, the hair after styling tends to be damaged by humidity, and the humidity resistance is often poor. For this reason, there is a demand for a hairdressing composition that is excellent in moisture resistance of the hairstyle after styling and excellent in keeping the hairstyle.

Accordingly, an object of the present invention is to provide a hairdressing composition using α-ketoglutaric acid as a hairdressing component and/or a hairdressing composition having excellent moisture resistance of the hairstyle after styling.

As a result of intensive studies to achieve the above object, the present inventors have found that a hair styling product containing α-ketoglutaric acid, water and/or ethanol, α-ketoglutaric acid in a specific proportion, and pH of a specific value or less. According to the hairdressing composition, it is possible to obtain a hairdressing composition that uses α-ketoglutaric acid as a hairstyling component and has excellent moisture resistance of the hairstyle after hairstyling. It has been found that a hair styling agent composition which is excellent in moisture resistance of the post-hairstyle can be obtained. The present invention has been completed based on these findings.

That is, the present invention contains the following component (A) and the following component (B), the content of the component (A) is 0.01 to 0.8% by mass, and the pH is 6.8 or less. A hair styling composition is provided.
Component (A): α-ketoglutaric acid Component (B): water and/or ethanol

The ethanol content of the hair styling composition is preferably 0.1 to 80.0% by mass.

According to the hair styling composition of the present invention, it is possible to provide a hair styling composition using α-ketoglutaric acid as a hair styling component. Moreover, according to the hairdressing composition of the present invention, the hairstyle after styling is excellent in moisture resistance, and the hairstyle after styling is excellent in keeping power.

The hair styling composition of the present invention contains at least α-ketoglutaric acid and water and/or ethanol. In this specification, α-ketoglutaric acid may be referred to as "component (A)". Also, water and/or ethanol may be referred to as "component (B)".

That is, the hairdressing composition of the present invention contains at least component (A) and component (B). The hairdressing composition of the present invention may contain components other than the components (A) and (B). In addition, each component contained in the hair dressing composition of the present invention, for example, each component such as component (A), component (B), and other components, may be used alone or in combination with two components. More than seeds may be used.

[Component (A)]
Component (A) is α-ketoglutaric acid.

In the hair styling composition of the present invention, component (A) has the effect of improving hair styling performance and/or moisture resistance. In particular, in a hair styling agent composition that does not contain or contains only a small amount of hair styling components other than component (A), component (A) acts as a main hair styling component, giving the hair a curling power (arranging power) and/or hair styling. It exerts an action (hair styling holding power) to fix the styled hairstyle. In addition, it exhibits the effect of improving moisture resistance (characteristics that make it difficult for a hairstyle that has been styled to fall apart in a high-humidity environment). When a hair styling component other than component (A) is contained in a relatively large amount, it mainly exhibits the effect of improving moisture resistance (characteristics that make it difficult for a styled hair style to collapse in a high-humidity environment). Furthermore, component (A) exerts a supplementary action to improve hair styling power. The hair styling power of component (A) has the advantage of being easily washed off by shampooing.

The content of component (A) in the hair styling composition of the present invention is 0.01 to 0.8% by mass, preferably 0.1 to 0.8% by mass, based on 100% by mass of the hair styling composition of the present invention. 0.6% by mass, more preferably 0.3 to 0.5% by mass. It is considered that the above content of 0.01% by mass or more facilitates the reaction between the component (A) and amino groups in the hair when the pH is below a specific value. arranging ability and hair styling retention) and excellent moisture resistance of the hairstyle after styling. If the content exceeds 0.8% by mass, hair styling power (arranging power/hair styling retention power) and moisture resistance cannot be obtained. The content of component (A) is the total content of all components (A) in the hairdressing composition of the present invention.

[Component (B)]
Component (B) is water and/or ethanol. Only one kind of component (B) may be used, or two or more kinds thereof may be used. Component (B) preferably contains both water and ethanol. Water is not particularly limited, but purified water is preferred.

The content of component (B) in the hair styling composition of the present invention is not particularly limited, but is preferably 20.0 to 99.9% by mass with respect to 100% by mass of the hair styling composition of the present invention. It is preferably 25.0 to 99.8% by mass. When the content is 20.0% by mass or more, the hair styling performance and the moisture resistance of the hairstyle after hair styling are excellent. The content of component (B) is the total content of all components (B) in the hairdressing composition of the present invention.

The content of ethanol in the hair styling composition of the present invention is not particularly limited, but is preferably 0.1 to 80.0% by mass, more preferably 20% by mass, based on 100% by mass of the hair styling composition of the present invention. 0 to 60.0% by mass, more preferably 30.0 to 50.0% by mass. Moisture resistance improves that the said content rate is in the said range. In addition, it is excellent for use in water-type and aerosol-type hair styling agents.

The content of water in the hair styling composition of the present invention is not particularly limited, but is preferably 15.0 to 99.8% by mass, more preferably 20% by mass, based on 100% by mass of the hair styling composition of the present invention. .0 to 90.0% by mass, more preferably 30.0 to 80.0% by mass.

[Other ingredients]
The hairdressing composition of the present invention may contain components (other components) other than the components (A) and (B) within a range that does not impair the effects of the present invention. The above-mentioned other ingredients are not particularly limited, but for example, polyhydric alcohols; surfactants; oily components; thickeners; sugar alcohols such as sorbitol and maltitol; anti-inflammatory agents such as glycyrrhizic acid and its salts; cooling agents such as menthol; phosphoric acid and its salts, citric acid and its salts, lactic acid and its salts, sodium hydroxide, triethanolamine pH adjusters such as; fragrances; UV absorbers; antioxidants; preservatives; sequestering agents (chelating agents); animal and plant extracts; neutralizers; bactericides; antiperspirants; deodorants; Only one kind of the other components may be used, or two or more kinds thereof may be used.

Examples of the polyhydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol, 1,2-butanediol, 1,2- pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, glycerin, diglycerin, polyglycerin, polyoxypropylene methyl glucoside and the like. Only one type of the polyhydric alcohol may be used, or two or more types may be used.

Examples of the surfactant include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. Only one type of the surfactant may be used, or two or more types may be used.

Examples of the nonionic surfactants include sorbitan fatty acid esters, glycerin fatty acid esters, and alkylene oxide adducts thereof, polyglycerin fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, poly Oxyethylene sorbitol fatty acid ester, polyoxyethylene alkylphenyl formaldehyde condensate, polyoxyethylene sterol and its derivatives, polyoxyethylene lanolin and its derivatives, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, polyoxy ethylene castor oil and the like.

Examples of the anionic surfactant include higher fatty acid soaps, alkyl sulfates, alkyl phosphates, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkylphenyl ether sulfates, alkyl ether phosphates, and alkyl ethers. Carboxylate, acylmethyltaurate, N-acyl-N-methyl-β-alanine, N-acylglycinate, N-acylglutamate, polyoxyethylene alkyl carboxylate, alkylphenyl ether sulfonate, alkyl Sulfosuccinic acid and its salts, N-acylsarcosine and its salts, polyoxyethylene coconut oil fatty acid monoethanolamide sulfate and the like.

Examples of the cationic surfactant include alkylamine salts, fatty acid amide amine salts, amine salts such as ester-containing tertiary amine salts, monoalkyl-type quaternary ammonium salts, dialkyl-type quaternary ammonium salts, trialkyl type quaternary ammonium salts, alkyl quaternary ammonium salts such as benzalkonium type quaternary ammonium salts, cyclic quaternary ammonium salts such as alkylpyridinium salts, and benzethonium chloride.

Examples of the amphoteric surfactant include glycine-type amphoteric surfactants such as alkylglycine salts, carboxymethylglycine salts, N-acylaminoethyl-N-2-hydroxyethylglycine salts, alkylaminopropionates, and alkyliminodipropiones. Aminopropionic acid-type amphoteric surfactants such as acid salts, aminoacetic acid betaine-type amphoteric surfactants such as alkyldimethylaminoacetic acid betaine, fatty acid amidopropyldimethylaminoacetic acid betaine, and sulfobetaine-type amphoteric surfactants such as alkylhydroxysulfobetaine etc.

Examples of the oily component include waxes, hydrocarbon oils, ester oils, silicone oils, vegetable oils, higher alcohols and higher fatty acids. Only one type of the oily component may be used, or two or more types may be used.

Examples of the wax include carnauba wax, candelilla wax, beeswax, sunflower seed wax, rice bran wax, shellac wax, whale wax, and lanolin.

Examples of the hydrocarbon oils include α-olefin oligomer, petrolatum, ceresin, paraffin, liquid paraffin, isoparaffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, squalane, synthetic squalane, vegetable squalane, hydrogenated polyisobutene, hydrogenated (tetradecenyl/methylpentadecene), isododecane, and the like.

Examples of the ester oils include ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, oleyl oleate, octyldodecyl myristate, octyldodecyl oleate, ethyl isostearate, isopropyl isostearate, Cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, glyceryl triisopalmitate, pentaerythritol tetra-2-ethylhexanoate, isocetyl octanoate, isostearyl octanoate, isocetyl isostearate , octyldodecyl isostearate, octyldodecyl dimethyloctanoate, 2-ethylhexyl palmitate, propylene glycol isostearate, caprylic/capric triglyceride, isononyl isononanoate, diisopropyl adipate, pentaerythrityl tetraoctanoate, tetraisostearin pentaerythrityl acid, diisostearyl malate, erythrityl triethylhexanoate, 2-ethylhexyl hydroxystearate, hexa (hydroxystearate/stearate/rosin acid) dipentaerythrityl, tetra (hydroxystearate/isostearate) dipentaerythrityl, hexahydroxy Dipentaerythrityl stearate, glyceryl (ethylhexanoate/stearate/adipate), glyceryl tri(caprylate/caprate/myristate/stearate), hexa(behenate/benzoate/ethylhexanoate) dipentaerythrityl, alkyl benzoate (C12-15) and the like.

Examples of the silicone oil include dimethyl silicone oils (dimethicone) such as methylpolysiloxane and highly polymerized methylpolysiloxane; methylphenyl silicone oils such as methylphenylpolysiloxane; methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethyl Cyclic silicone oils such as cyclopentasiloxane and dodecamethylcyclohexasiloxane; aminopropylmethylsiloxane/dimethylsiloxane copolymer, aminoethylaminopropylsiloxane/dimethylsiloxane copolymer, aminoethylaminopropylmethylsiloxane/dimethylsiloxane copolymer modified silicone such as amino-modified silicone, carboxy-modified silicone, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy-modified silicone, fluorine-modified silicone, alkyl-modified silicone; be done.

Examples of the vegetable oils include macadamia nut oil, eucalyptus oil, coconut oil, avocado oil, safflower oil, olive oil, palm oil, palm kernel oil, kukui nut oil, shea butter, cocoa butter, almond oil, and sunflower oil. , rosehip oil, olive squalane, camellia oil, kiwifruit seed oil, camellia oil, apricot kernel oil, sesame oil, soybean oil, jojoba oil, castor oil, hazelnut oil, meadowfoam oil, peppermint oil, argan oil, carrot oil, lavender oil, sugar squalane, damask rose flower wax, centifolia rose flower wax, Jasminum flower wax, camellia oil, hydrogenated products thereof (e.g., hydrogenated castor oil, hydrogenated jojoba oil, hydrogenated palm oil, hydrogenated avocado oil, hydrogenated soybean oil, etc.).

As the higher alcohol, aliphatic alcohols having 12 to 22 carbon atoms (more preferably 14 to 22 carbon atoms) are preferable, and examples thereof include cetyl alcohol, stearyl alcohol, isostearyl alcohol, myristyl alcohol, 2-octyldodecanol, and oleyl alcohol. etc.

As the higher fatty acid, a fatty acid having 12 to 22 carbon atoms (more preferably 16 to 18 carbon atoms) is preferable, and examples thereof include myristic acid, palmitic acid, stearic acid, hydroxystearic acid, lauric acid, lanolinic acid, and behenic acid. mentioned.

Examples of the thickener include water-soluble natural polymers, semi-synthetic polymers, synthetic polymers, and the like. Examples of water-soluble natural polymers include gum arabic, tragacanth gum, guar gum, locust bean gum, karaya gum, irismos, quince seed, gelatin, shellac, rosin, and casein. Examples of water-soluble semisynthetic polymers include sodium carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, ethylcellulose, sodium alginate, ester gum, nitrocellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, and crystalline cellulose. Examples of the water-soluble synthetic polymer include polyvinyl alcohol, sodium polyacrylate, carboxyvinyl polymer (carbomer), acrylic acid/methacrylic acid ester copolymer, polyvinyl methylcellulose, polyamide resin, and polyethylene glycol. . Examples of the thickener include clay minerals such as bentonite and synthetic hectorite. Among them, a water-soluble synthetic polymer is preferable, and a carboxyvinyl polymer and an acrylic acid/methacrylic acid ester copolymer are more preferable. Only one type of the thickening agent may be used, or two or more types may be used.

When a carboxyvinyl polymer or an acrylic acid/methacrylic acid ester copolymer is used as a thickener, it is usually used after being neutralized with a basic substance. Examples of basic substances include alkanolamines such as triethanolamine and monoethanolamine; inorganic bases such as ammonia, sodium hydroxide and potassium hydroxide; basic amino acids such as arginine and the like. The amount of the basic substance to be added is an amount sufficient to neutralize the carboxyvinyl polymer and the acrylic acid/methacrylic acid ester copolymer, and may be appropriately blended according to the type and amount of use of these components. .

Examples of the film-forming polymer include anionic film-forming polymer, cationic film-forming polymer, amphoteric film-forming polymer, and nonionic film-forming polymer. Only one type of the film-forming polymer may be used, or two or more types may be used.

Examples of the anionic film-forming polymer include alkyl (meth)acrylate copolymers, (meth)acrylic acid/alkyl (meth)acrylate copolymers, acrylic resin alkanolamines, methyl vinyl ether/maleate copolymers, Vinyl acetate/crotonic acid copolymer, vinyl acetate/crotonic acid/vinyl neodecanoate copolymer, vinyl acetate/crotonic acid/vinyl propionate copolymer, vinyl acetate/monobutyl maleate/isoboryl acrylate copolymer Copolymer, acrylic acid/alkyl acrylate/alkyl acrylamide copolymer, polyvinylpyrrolidone/acrylate/(meth)acrylic acid copolymer, (styrene/alkyl acrylate) copolymer, (styrene/acrylic acid amide) copolymer Examples include coalescence, acrylic acid alkyl ester/methacrylic acid alkyl ester/diacetone acrylamide/methacrylic acid copolymer, urethane-acrylic copolymer, and sodium polystyrene sulfonate. In addition, "(meth)acryl" means both "acryl" and "methacryl".

Examples of the cationic film-forming polymer include vinylpyrrolidone/N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride, Vinylimidazolium trichloride/vinylpyrrolidone copolymer, hydroxyethylcellulose/dimethyldiallylammonium chloride, polyvinylpyrrolidone/alkylaminoacrylate/vinylcaprolactam copolymer, methyl vinylimidazolium chloride/vinylpyrrolidone copolymer, (vinylpyrrolidone/dimethyl aminopropyl methacrylamide/lauryldimethylaminopropyl methacrylamide) copolymer;

Examples of the amphoteric film-forming polymer include N-methacryloyloxyethyl N,N-dimethylammonium-α-N-methylcarboxybetaine/methacrylic acid alkyl ester copolymer, N,N dimethyl-N-(2-methacryloyloxy Ethyl)amine = N-oxide/methacrylic acid alkyl ester copolymer, hydroxypropyl acrylate/butylaminoethyl methacrylate/octylamide acrylate copolymer, monochloroacetic acid of dialkylaminoethyl methacrylate/methacrylic acid alkyl ester copolymer amphoteric compounds, (isobutylene/diethylaminopropylmaleimide/maleic acid) copolymers, and the like.

Examples of the nonionic film-forming polymer include polyvinylpyrrolidone, vinylpyrrolidone/vinyl acetate copolymer [(vinylpyrrolidone/VA) copolymer], vinylpyrrolidone/methacrylamide/vinylimidazole copolymer, vinyl methyl ether/maleic acid. Ethyl copolymer, polyvinyl alcohol, polyvinylcaprolactam, dimethylacrylamide/hydroxyethyl acrylate/methoxyethyl acrylate copolymer, hydroxyethyl acrylate/methoxyethyl acrylate copolymer [(hydroxyethyl acrylate/methoxyethyl acrylate ) copolymer], (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer, and the like.

The pH of the hairdressing composition of the present invention at 25°C is 6.8 or less, preferably 5.0 or less. It is presumed that when the pH is 6.8 or less, the amino groups in the proteins in the hair are easily ionized and easily form ionic bonds with the component (A). The moisture resistance improvement effect of is exhibited. Although the lower limit of the above pH is not particularly limited, it is preferably 2.0, more preferably 4.0.

The hairdressing composition of the present invention is not particularly limited, and can be produced by a known or commonly used method. For example, it can be produced by mixing each of the above components, stirring with a homomixer, paddle mixer, or the like, and emulsifying by a phase inversion emulsification method or the like as necessary. When emulsifying, mixing and emulsifying may be performed separately or simultaneously.

The dosage form of the hairdressing composition of the present invention is not particularly limited, and examples include water dosage form (lotion dosage form, non-aerosol mist dosage form, etc.), gel dosage form, emulsion dosage form, cream dosage form, and aerosol spray. Examples include dosage form, wax dosage form, stick dosage form, grease dosage form, and the like. Among these, water formulations, gel formulations, emulsion formulations, wax formulations, grease formulations, and aerosol spray formulations are preferred, and water formulations are particularly preferred, from the viewpoint of ease of application to hair and hair styling.

Preferred specific embodiments of each dosage form of the hairdressing composition of the present invention are described below. However, the present invention is not limited to these.

[Water dosage form]
When the hair styling composition of the present invention is a water agent (eg, lotion, non-aerosol mist agent), the hair styling composition of the present invention contains at least component (A) and component (B). The hairdressing composition of the present invention may contain a film-forming polymer, a polyhydric alcohol, and a pH adjuster. Examples of the above components include those described above.

The content of component (B) in the hair styling composition of the present invention is not particularly limited, but is preferably 80.0 to 99.9% by mass with respect to 100% by mass of the hair styling composition of the present invention, and more It is preferably 90.0 to 99.5% by mass.

The content of ethanol in the hair styling composition of the present invention is not particularly limited, but is preferably 20.0 to 60.0% by mass, more preferably 30% by mass, based on 100% by mass of the hair styling composition of the present invention. .0 to 50.0% by mass.

The content of the film-forming polymer is not particularly limited, but is preferably 0.1 to 5.0% by mass, more preferably 1.0 to 3.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the polyhydric alcohol is not particularly limited, but is preferably 0.1 to 20.0% by mass, more preferably 1.0 to 10.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

[Gel dosage form]
When the hair styling composition of the present invention is a gel, the hair styling composition of the present invention contains at least component (A) and component (B). The hair styling composition of the present invention preferably contains a film-forming polymer and a thickening agent. Moreover, the hairdressing composition of the present invention may contain a polyhydric alcohol, a surfactant, and a fragrance. Examples of the above components include those described above.

The content of component (B) in the hair styling composition of the present invention is not particularly limited, but is preferably 30.0 to 90.0% by mass with respect to 100% by mass of the hair styling composition of the present invention, and more It is preferably 60.0 to 80.0% by mass.

The content of ethanol in the hair styling composition of the present invention is not particularly limited, but is preferably 0.1 to 20.0% by mass, more preferably 1% by mass, based on 100% by mass of the hair styling composition of the present invention. .0 to 10.0% by mass.

The content of the film-forming polymer is not particularly limited, but is preferably 0.1 to 10.0% by mass, more preferably 1.0 to 7.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the thickener is not particularly limited, but is preferably 0.1 to 0.8% by mass, more preferably 0.3 to 0.8%, based on 100% by mass of the hair styling composition of the present invention. % by mass, more preferably 0.4 to 0.6% by mass.

The content of the polyhydric alcohol is not particularly limited, but is preferably 0.1 to 30.0% by mass, more preferably 1.0 to 25.0% by mass, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the surfactant is not particularly limited, but is preferably 0.01 to 30.0% by mass, more preferably 0.1 to 5.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

[Wax formulation]
When the hair styling composition of the present invention is a wax agent, the hair styling composition of the present invention contains at least component (A) and component (B). The hair styling composition of the present invention preferably contains an oily component, a surfactant, and a thickener. Moreover, the hairdressing composition of the present invention may contain a polyhydric alcohol. Examples of the above components include those described above.

The content of component (B) in the hair styling composition of the present invention is not particularly limited, but is preferably 25.0 to 80.0% by mass with respect to 100% by mass of the hair styling composition of the present invention. It is preferably 30.0 to 50.0% by mass.

The content of ethanol in the hairdressing composition of the present invention is not particularly limited, but is preferably 0.01 to 10.0% by mass, more preferably 0%, based on 100% by mass of the hairstyling composition of the present invention. .1 to 5.0% by mass.

The content of the oily component is not particularly limited, but is preferably 0.2 to 60.0% by mass, more preferably 1.0 to 55.0% by mass, based on 100% by mass of the hair styling composition of the present invention. %, more preferably 6.0 to 50.0% by mass.

The oily component preferably contains an oily component that is solid at 25°C and an oily component that is liquid at 25°C.

Examples of oily components that are solid at 25°C include waxes such as beeswax, candelilla wax, carnauba wax, rice bran wax, lanolin, whale wax, shellac, cotton wax, Japanese wax, and hydrogenated jojoba oil; ozokerite, ceresin, paraffin wax; Hydrocarbon oils such as polyethylene, microcrystalline wax, petrolatum; higher fatty acids such as myristic acid, palmitic acid, stearic acid, hydroxystearic acid, lauric acid, lanolinic acid, behenic acid; myristyl alcohol, cetyl alcohol, stearyl alcohol, chimyl higher alcohols such as alcohol, behenyl alcohol, batyl alcohol and cetostearyl alcohol; The content of the oily component that is solid at 25° C. is not particularly limited, but is preferably 0.1-40.0% by mass, more preferably 1.0-40.0% by mass, based on 100% by mass of the hair styling composition of the present invention. 40.0% by mass, more preferably 5.0 to 30.0% by mass.

Examples of oily components that are liquid at 25°C include hydrocarbons such as liquid paraffin, light liquid isoparaffin, and squalane; isopropyl myristate, isopropyl palmitate, myristyl myristate, 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, and the like. and silicone oils such as dimethicone and cyclic silicone oils. The content of the oily component that is liquid at 25° C. is not particularly limited, but is preferably 0.1 to 40.0% by mass, more preferably 1.0 to 40.0% by mass, based on 100% by mass of the hair styling composition of the present invention. 30.0% by mass.

The content of the surfactant is not particularly limited, but is preferably 0.1 to 20.0% by mass, more preferably 4.0 to 10.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the thickener is not particularly limited, but is preferably 0.1 to 0.8% by mass, more preferably 0.2 to 0.4%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the polyhydric alcohol is not particularly limited, but is preferably 0.1 to 10.0% by mass, more preferably 1.0 to 8.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

[Aerosol dosage form]
When the hairdressing composition of the present invention is used in an aerosol form, the hairdressing composition of the present invention is used as an aerosol hairdressing agent by filling an aerosol container together with a propellant. That is, the aerosol hair styling agent comprises an aerosol container, the hair styling composition of the present invention (so-called "stock solution"), and a propellant, and the hair styling composition of the present invention and the propellant are contained in the aerosol container. is filled.

The hairdressing composition of the present invention contains at least component (A) and component (B). The hair styling composition of the present invention preferably contains a film-forming polymer. Moreover, the hairdressing composition of the present invention may contain polyhydric alcohol and silicone oil. Examples of the above components include those described above.

The content of component (B) in the hair styling composition of the present invention is not particularly limited, but is preferably 50.0 to 90.0% by mass with respect to 100% by mass of the hair styling composition of the present invention. It is preferably 70.0 to 80.0% by mass.

The content of ethanol in the hair styling composition of the present invention is not particularly limited, but is preferably 5.0 to 80.0% by mass with respect to 100% by mass of the hair styling composition of the present invention.

The content of the film-forming polymer is not particularly limited, but is preferably 0.1 to 15.0% by mass, more preferably 1.0 to 10.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the polyhydric alcohol is not particularly limited, but is preferably 0.1 to 10.0% by mass, more preferably 1.0 to 5.0%, based on 100% by mass of the hair styling composition of the present invention. % by mass.

The content of the silicone oil is not particularly limited, but is preferably 0.1 to 20.0% by mass, more preferably 1.0 to 10.0% by mass, based on 100% by mass of the hair styling composition of the present invention. %.

Examples of the propellant include dimethyl ether (DME) and nitrogen gas. Only one type of the propellant may be used, or two or more types may be used.

In the aerosol hair styling agent, the content of the hair styling composition of the present invention is 0.5 to 70.0% by mass in the total 100% by mass of the hair styling composition (undiluted solution) of the present invention and the propellant. It is preferably 1.0 to 60.0 mass %, more preferably 1.0 to 60.0 mass %.

In the hairdressing composition of the present invention, the component (A), when acting as a hairstyling component, is excellent in the ability to flow and fix the hair (curling ability). In addition, regardless of whether the hair styling composition of the present invention contains other hair styling ingredients or not, the hair style after styling has excellent moisture resistance and the hair style retainability after hair styling is excellent. Since the bonds originally present in the hair are dissociated by moisture, the hairstyle after hair styling using a conventional hair styling agent tends to be damaged by moisture. However, according to the hairdressing composition of the present invention using the component (A) in a specific ratio, the component (A) penetrates into the hair, and the plurality of carboxy groups in the component (A) are It forms mainly ionic bonds with multiple amino groups in proteins in hair, and further by the action of the carbonyl group in component (A), it can fix the shape of hair and can act as a hair styling component. It is assumed that By fixing the shape of the hair by the ionic bond, even if the bond originally present in the hair is dissociated by moisture, the formed ionic bond is less likely to be dissociated. It is presumed to be excellent in moisture resistance and keeping power of hairstyle.

The method of using the hairdressing composition of the present invention is as follows. After applying the hair styling composition of the present invention to the hair, the hair can be styled into a desired hairstyle. In addition to bending and styling the hair in a desired direction, the hair styling includes straightening curled hair and correcting bed habits. The hair styling composition of the present invention may be applied to dry hair, or may be applied to wet hair after drying with a towel. Heating may not be performed during the hair styling. Bonds between component (A) and amino groups in the hair are mainly ionic bonds, which are formed at room temperature. In addition, when the hair is wet at the time of styling, the hair may be heated for the purpose of promoting drying. When the heating is performed, the temperature of the hair is preferably less than 100°C (more preferably less than 90°C) from the viewpoint of reducing damage to the hair.

The hairdressing composition of the present invention is used as a hairdressing agent. Examples of the above-mentioned hair styling agent include hair water, hair lotion, hair mist (non-aerosol type), hair gel, hair milk, hair cream, hair spray (aerosol type), hair wax, hair stick, hair grease, water for correcting bed habits, and the like. be done.

EXAMPLES The present invention will be described in more detail below based on examples, but the present invention is not limited only to these examples. The compounding amounts shown in the table are the compounding amounts of each component (that is, the compounding amount of the active ingredient in each raw material; so-called pure content), and are expressed in "% by mass" unless otherwise specified. In addition, Example 6 and Example 22 shall be read as Reference Example 1 and Reference Example 2, respectively.

Examples 1-9, Comparative Examples 1-10
Using each component shown in the table, each hair styling composition (water type) of Examples and Comparative Examples was prepared by a conventional method. Triethanolamine was added so that the set pH was within the range of less than 1.0% by mass.

(evaluation)
Each hair styling composition obtained in Examples 1 to 9 and Comparative Examples 1 to 10 was evaluated as follows.

(1) pH (pH at 25°C)
It was measured using a pH measuring device (trade name “pH meter”, manufactured by HORIBA, Ltd.).

(2) Hair styling power A bundle of hair (30 cm in length, 2 g in weight) was immersed in each of the hair styling compositions obtained in Examples and Comparative Examples at a temperature of 25°C for 2 hours, and then applied to a rod with a diameter of 1 cm. A curled hair bundle (sample) was prepared by winding it spirally and leaving it for 24 hours in an environment of a temperature of 25° C. and a relative humidity of 50%.
A comparative sample was prepared in the same manner as above, except that purified water was used instead of the hairdressing composition.
Under an environment of a temperature of 25° C. and a relative humidity of 50%, both the sample and the comparative object were suspended, and the degrees of curling were compared by visual observation and evaluated according to the following criteria.
[Determination Criteria for Hair Styling Power]
⊚ (excellent): It has more peculiarities than the comparative object.
◯ (Good): It has more peculiarities than the comparative object.
x (defective): The degree of peculiarity is equivalent to or inferior to that of the comparative object.

(3) Keeping power of hairstyle after styling (moisture resistance)
After the evaluation of the hair styling ability, the sample and the comparative object were stored in a suspended state for 180 minutes in an environment of a temperature of 25° C. and a relative humidity of 80%.
After the storage, both the sample and the comparative object were suspended in an environment of 25° C. temperature and 50% relative humidity, and visually observed to compare the degree of curling, and evaluated according to the following criteria.
[Criteria for keeping hair style (moisture resistance) after styling]
⊚ (excellent): It has more peculiarities than the comparative object.
◯ (Good): It has more peculiarities than the comparative object.
x (defective): The degree of peculiarity is equivalent to or inferior to that of the comparative object.

The hair styling agent composition (Example) of the present invention has excellent curling power due to the action of α-ketoglutaric acid as a hair styling component, and also has excellent moisture resistance of the hairstyle after styling. It was excellent in keeping power. On the other hand, when α-ketoglutaric acid is not contained (Comparative Example 1), when the amount of α-ketoglutaric acid is excessive (Comparative Examples 2 and 3), when a similar compound is used instead of α-ketoglutaric acid ( In all of Comparative Examples 4 to 9) and when the pH exceeds 6.8 (Comparative Example 10), hair styling power and moisture resistance are inferior to those of Examples, or are not exhibited at all.

Examples 10-22
Using each component shown in the table, each hair styling composition (water type) of Examples was prepared by a conventional method. Triethanolamine was added so that the set pH was within the range of less than 1.0% by mass.

(evaluation)
Each hair styling composition obtained in Examples 10 to 22 was evaluated for pH, hair styling performance, and moisture resistance. The evaluation method and evaluation criteria for each evaluation are the same as in Examples 1 to 9 described above.

Examples 23-26, Comparative Examples 11 and 12
Using the components shown in the table, each hair styling composition of Examples 23 to 26 and Comparative Examples 11 and 12 was prepared by a conventional method. Triethanolamine was added so that the set pH was within the range of less than 1.0% by mass. Further, the hair styling compositions of Examples 23 to 25 and Comparative Example 11 are wax formulations, and the hair styling compositions of Example 26 and Comparative Example 12 are gel formulations.

About 1 g of the hairdressing composition obtained in Examples 23 to 26 and Comparative Examples 11 and 12 was taken in the palm of the hand, stretched on the palm, and then applied to a wig (manufactured by Beaulux Co., Ltd., trade name “Stuffs Cut Wig”). It was applied evenly on the hair of half of the head (either left or right of the head) and styled so that the hair was raised upward.
As a result, all of the hair styling compositions of Examples 23 to 26 and Comparative Examples 11 and 12 were able to style the hair into a hairstyle in which the hair stood up sufficiently, and had excellent hair styling power.
Further, the hair-styled wig was stored for 6 hours in an environment of 25° C. and 80% relative humidity, and changes in hairstyle after storage were observed.
As a result, all of the wigs styled with the hairdressing composition of Examples 23 to 26 maintained the hairstyle before storage even after storage, and had excellent moisture resistance. On the other hand, the wigs that had been styled with the hair styling composition of Comparative Examples 11 and 12 were inferior in moisture resistance, with the raised hair clearly falling down after storage.

Furthermore, formulation examples of the hairdressing composition of the present invention are shown below.

<Hair wax>
Carnauba wax 5.0% by mass
Microcrystalline wax 3.0% by mass
Paraffin 3.0% by mass
Mineral oil 10.0% by mass
Cyclopentasiloxane 5.0% by mass
Dimethicone 3.0% by mass
Cetyl ethylhexanoate 5.0% by mass
Ceteth-20 4.0% by mass
Glyceryl stearate 2.0% by mass
Stearic acid 2.0% by mass
Stearyl alcohol 1.0% by mass
Carbomer 0.3% by mass
1,3-butylene glycol 3.0 mass%
Phenoxyethanol 0.3% by mass
Ethanol Appropriate amount Triethanolamine Appropriate amount Perfume Appropriate amount α-Ketoglutaric acid 0.1% by mass
Purified water Remaining total 100% by mass

<Hair gel>
Polyvinyl pitridone 3.0% by mass
(methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer
2.0% by mass
Glycerin 5.0% by mass
Maltitol 2.0% by mass
1,3-butylene glycol 3.0 mass%
Carbomer 0.5% by mass
Ethanol Appropriate amount Triethanolamine Appropriate amount EDTA-2Na Appropriate amount Phenoxyethanol 0.2% by mass
Perfume Appropriate amount α-ketoglutaric acid 0.2% by mass
Purified water Remaining total 100% by mass

<Hair gel>
Silicic acid (Na/Mg) 2.5% by mass
Silica 2.0% by mass
Ethanol 20.0% by mass
Glycerin 5.0% by mass
1,3-butylene glycol 7.0 mass%
Panthenol 3.0% by mass
Xanthan gum 0.1% by mass
α-Ketoglutaric acid 0.02% by mass
Citric acid 0.15% by mass
Bis PEG-18 methyl ether dimethylsilane 0.03% by weight
EDTA-2Na suitable amount Diatomaceous earth 0.2% by mass
Purified water Remaining total 100% by mass

<Hair mist>
(Alkyl Acrylates/Diacetone Acrylamide) Copolymer AMP
3.0% by mass
Polyvinyl pitridone 0.5% by mass
Amino coat 2.0% by mass
Glycerin 5.0% by mass
Ethanol Appropriate amount Panthenol 0.1% by mass
Triethanolamine Appropriate amount Perfume Appropriate amount α-Ketoglutaric acid 0.05% by mass
Purified water Remaining total 100% by mass

<Hairspray>
(Undiluted solution)
(Acrylates / alkyl acrylate (C1-18) /
Alkyl (C1-8) acrylamide) copolymer AMP 4.0% by weight
Acrylates copolymer AMP 3.0% by weight
Dipropylene glycol 2.0% by mass
Ethanol Remaining purified water 40.0% by mass
Perfume Appropriate amount Triethanolamine Appropriate amount α-ketoglutaric acid 0.2% by mass
Total 100% by mass
(propellant)
Dimethyl ether 100% by mass
[Undiluted solution: propellant = 55:45 (mass ratio)]

<Hair mist>
α-Ketoglutaric acid 0.4% by mass
Triethanolamine Appropriate amount Na hyaluronate 0.01% by mass
Hydrolyzed keratin 0.1% by mass
Perfume 0.1% by mass
Polyoxyethylene hydrogenated castor oil (50 E.O.) 0.1% by mass
Glycerin 1.0% by mass
Ethanol 30.0% by mass
Purified water Remaining total 100% by mass

Claims (2)

Containing the following component (A) and the following component (B),
The content of component (A) is 0.01 to 0.5 % by mass,
The content ratio of the component (B) is 20.0 to 99.9% by mass,
The ethanol content is 80.0% by mass or less (including 0% by mass),
A hairdressing composition having a pH of 2.0 or more and 6.8 or less.
Component (A): α-ketoglutaric acid Component (B): water or water and ethanol 2. The hair styling composition according to claim 1, wherein the ethanol content is 0.1 to 80.0% by mass.