Hair-treating composition and method for improving appearance of hair

Abstract

To provide a hair-treating composition and a method for improving appearance of hair which are capable of achieving improvement in the appearance of hair.SOLUTION: A hair-treating composition comprises a hair dye composition containing (A) cystine and (B) a dye, and (C) a post-treatment agent.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair treatment composition containing cystine and a dye, and a method for improving the appearance of hair using the same. [Background technology]

[0002] Semi-permanent hair dye compositions containing, for example, acid dyes as direct dyes are generally known. Semi-permanent hair dye compositions develop color by ionic bonding of the dye to the very shallow part of the cortex. Also known are oxidative hair dyes that use an alkaline agent to cause the oxidative dye to penetrate into the hair cuticle, and an oxidizing agent to decompose melanin pigments and develop the dye color. These hair treatment compositions contain hair care ingredients. For example, cystine is known as a hair care ingredient for reducing hair damage.

[0003] Hair dye compositions have been known as hair treatment compositions, as described in Patent Documents 1 and 2. These hair dye compositions contain cystine as a hair care ingredient, which reduces damage to hair after dyeing, thereby improving the feel of the hair. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 60-78915 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-370950 Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional hair dye compositions containing a dye and cystine have had problems with the appearance of hair after dyeing, such as discoloration. [Means for solving the problem]

[0006] The present invention is based on the discovery that the application of a post-treatment agent (C) to a cystine-containing hair dye composition can suppress deterioration in the appearance of hair after dyeing. Note that the mass % values ​​indicating the content of components are values ​​in the formulation including solubilizers such as organic solvents.

[0007] Various aspects for solving the above problems will be described. The hair treatment composition of Aspect 1 comprises (A) a hair dye composition having cystine and (B) a dye, and (C) a post-treatment agent.

[0008] In a second aspect, in the hair treatment composition according to the first aspect, the (C) post-treatment agent contains an acid. In a third aspect, the hair treatment composition according to the first or second aspect further contains at least one alkaline agent (D) selected from ammonia and ammonium salts.

[0009] Aspect 4 is the hair treatment composition according to Aspect 2, wherein the acid includes at least one selected from citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, levulinic acid, ascorbic acid, pyrrolidonecarboxylic acid, and phosphoric acid.

[0010] Aspect 5 relates to the hair treatment composition according to any one of Aspects 1 to 4, wherein hair dyed with the hair treatment composition has an improved appearance compared to hair dyed without the (C) post-treatment agent.

[0011] A sixth aspect is the hair treatment composition according to the fifth aspect, wherein the improvement in hair appearance is suppression of color fading and / or sustained shine. A method for improving the appearance of hair according to the seventh aspect involves dyeing hair using the hair treatment composition according to any one of the first to sixth aspects. [Effects of the Invention]

[0012] The hair treatment composition of the present invention can suppress deterioration in the appearance of hair after hair dyeing. DETAILED DESCRIPTION OF THE INVENTION

[0013] One embodiment of the hair treatment composition of the present invention will be described below. The hair treatment composition comprises (A) a hair dye composition containing cystine and (B) a dye, and (C) a post-treatment agent.

[0014] The hair dye composition may be configured as, for example, a multi-component hair dye composition or a single-component hair dye composition. Specific examples of multi-component hair dye compositions include, for example, two-component oxidative hair dye compositions and three-component oxidative hair dye compositions. Hereinafter, a three-component oxidative hair dye composition will be described as an example of a hair dye composition.

[0015] <Three-component oxidation hair dye composition> The three-component oxidative hair dye composition is composed of a first component containing (B) an oxidative dye as a dye and (D) an alkaline agent, etc., a second component containing an oxidizing agent, etc., and a third component containing (A) cystine, etc. Examples of the components of the three-component oxidative hair dye composition are given below.

[0016] (First agent of a three-agent oxidation hair dye composition) The first part of the oxidation hair dye composition contains an oxidation dye as the dye (B), an alkali agent (D), and the like, as described above.

[0017] (oxidation dyes) Oxidation dyes are compounds capable of developing color as a result of oxidative polymerization with an oxidizing agent, and are classified into dye intermediates and couplers. Oxidation dyes preferably contain dye intermediates and couplers.

[0018] Examples of dye intermediates include p-phenylenediamine, toluene-2,5-diamine (para-toluylenediamine), N-phenyl-p-phenylenediamine, 4,4'-diaminodiphenylamine, p-aminophenol, o-aminophenol, p-methylaminophenol, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, o-chloro-p-phenylenediamine, 4-amino-m-cresol, 2-amino-4-hydroxyethylaminoanisole, 2,4-diaminophenol, 1-hydroxyethyl-4,5-diaminopyrazole, and salts thereof. Specific examples of salts include hydrochlorides and sulfates. One of these dye intermediates may be used alone, or two or more may be used in combination.

[0019] The coupler develops color upon bonding with a dye intermediate. Examples of couplers include resorcinol, 5-amino-o-cresol, m-aminophenol, α-naphthol, 5-(2-hydroxyethylamino)-2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4-diamine, 2,6-diaminopyridine, diphenylamine, N,N-diethyl-m-aminophenol, phenylmethylpyrazolone, 1,5-dihydroxynaphthalene, and salts thereof. Specific examples of salts include hydrochlorides and sulfates. One of these couplers may be used alone, or two or more may be used in combination. Since oxidation dyes can vary the color tone of hair, they are preferably composed of at least one dye intermediate selected from the above-mentioned specific examples and at least one coupler selected from the above-mentioned specific examples. The first agent may contain, as appropriate, a dye other than the above-mentioned oxidation dye, for example, an oxidation dye listed in the "Standards for Quasi-drug Raw Materials" (published June 2006, Yakuji Nipposha).

[0020] The lower limit of the content of the oxidative dye in the mixture of the first to third agents, i.e., the oxidative hair dye composition when applied to hair for hair dyeing treatment, is set appropriately, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.5% by mass or more. When the content of the oxidative dye is 0.01% by mass or more, the hair dyeing power can be particularly further improved.

[0021] The upper limit of the content of the oxidation dye in the mixture of the first to third agents is set appropriately, but is preferably 10% by mass or less, more preferably 7% by mass or less, and even more preferably 5% by mass or less. If the content of the oxidation dye is 10% by mass or less, the solubility in the solubilizer can be improved, especially when a solubilizer is used.

[0022] ((D) Alkaline agent) The alkaline agent (D) contained in the first pack accelerates the action of the oxidizing agent contained in the second pack (described later) and improves the hair bleaching and / or dyeing effects. Examples of the alkaline agent (D) include ammonia, alkanolamines, silicates, carbonates, bicarbonates, carbamates, metasilicates, phosphates, organic amines, and basic amino acids. Specific examples of alkanolamines include monoethanolamine and triethanolamine. Specific examples of silicates include sodium silicate, potassium silicate, and calcium silicate. Specific examples of carbonates include sodium carbonate, ammonium carbonate, and magnesium carbonate. Specific examples of bicarbonates include sodium bicarbonate and ammonium bicarbonate. Specific examples of carbamates include ammonium carbamate. Specific examples of metasilicates include sodium metasilicate and potassium metasilicate. Specific examples of phosphates include triammonium phosphate and diammonium hydrogen phosphate. Specific examples of organic amines include 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol, and guanidine. Specific examples of basic amino acids include arginine and lysine. Of these (D) alkaline agents, only one may be contained alone, or two or more may be contained in combination.

[0023] Among these, it is preferable to contain at least one selected from ammonia and ammonium salts, from the viewpoint of being able to suppress deterioration in the appearance of hair after hair dyeing and being able to improve the feeling of damage suppression.

[0024] When the oxidative hair dye composition is applied to hair, i.e., when the oxidative hair dye composition is used for normal hair dyeing treatments, the content of the alkaline agent (D) in the mixture of the first to third agents is preferably in an amount that results in a pH in the range of 7 to 12, more preferably in an amount that results in a pH in the range of 9 to 12. By adjusting the pH of the mixture to 7 or higher, the action of the oxidizing agent contained in the second agent can be promoted. By adjusting the pH of the mixture to 12 or lower, damage to hair caused by application of the oxidative hair dye composition can be suppressed. The pH of the mixture is measured at 25°C when the mixture of each agent is diluted 10 times with water and dissolved at a concentration of 10% by mass.

[0025] (Other ingredients) The oxidative hair dye composition may further contain, as necessary, ingredients other than those mentioned above, such as solubilizers, water-soluble polymers, oily ingredients, polyhydric alcohols, surfactants, chelating agents, pH adjusters, sugars, preservatives, stabilizers, plant extracts, herbal extracts, vitamins, fragrances, antioxidants, ultraviolet absorbers, excipients when formulated as a solid, dispersants, etc., within the range that does not impair the effects of the present invention.

[0026] Solubilizers are added, for example, to make the dosage form liquid. Examples of solubilizers used include water and organic solvents (solvents). Specific examples of organic solvents include ethanol, n-propanol, isopropanol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamic alcohol, anise alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, ethylene glycol phenyl ether (phenoxyethanol), phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate, and alkyl ether. Only one of these solubilizers may be used alone, or two or more may be used in combination. Among these, water is preferred because of its excellent ability to dissolve other components in the mixture. When water is used as a solvent, the water content in the mixture (content at the time of use) is preferably 40% by mass or more, more preferably 50% by mass or more.

[0027] Examples of water-soluble polymers include anionic polymers, cationic polymers, nonionic polymers, amphoteric polymers, etc. Examples of water-soluble polymers include natural polymers, semi-synthetic polymers, and synthetic polymers.

[0028] Specific examples of anionic polymers include xanthan gum, carrageenan, sodium alginate, gum arabic, pectin, carboxyvinyl polymer, alkyl acrylate copolymer, alkyl acrylate copolymer AMP, methyl vinyl ether / alkyl maleic anhydride half ester copolymer, vinyl acetate / crotonic acid copolymer, vinyl acetate / crotonic acid / vinyl neodecanoate copolymer, vinyl acetate / crotonic acid / vinyl propionate copolymer, vinyl acetate / N-vinyl-5-methyl-2-oxazoline copolymer, vinyl acetate / vinyl maleate / isobornyl acrylate copolymer, (alkyl acrylate / diacetone acrylamide) copolymer, (acrylates / diacetone acrylamide) copolymer AMP, (alkyl acrylate / octylacrylamide) copolymer, and the like.

[0029] The cationic polymer is not particularly limited, but examples thereof include cationic polysaccharides and cationic polymers containing structural units derived from cationic monomers. The cationic polysaccharides are cationic sugar derivatives in which cationic groups have been added to polysaccharides. Cationic sugar derivatives have a structure in which some of the hydroxyl groups contained in the sugars have been substituted with quaternary nitrogen-containing groups. A preferred quaternary nitrogen-containing group is a quaternary ammonium group. For example, cationic polysaccharides can be obtained by reacting a sugar with a quaternary ammonium salt such as a glycidyl trialkyl ammonium salt or a 3-halogeno-2-hydroxypropyl trialkyl ammonium salt to introduce quaternary ammonium groups into some of the hydroxyl groups of the sugar.

[0030] Examples of the cationic polysaccharides include cationized cellulose, cationized guar gum, cationized tara gum, cationized locust bean gum, cationized cassia, cationized fenugreek gum, and cationized starch.

[0031] The cationized cellulose is a cellulose-based polymer containing cationic groups. It is obtained by partially chemically bonding glycidyltrimethylammonium chloride or 3-chloro-2-hydroxypropyltrimethylammonium chloride to hydroxyethyl cellulose. Specific examples include polyquaternium-4 (hydroxyethyl cellulose dimethyldiallylammonium chloride) and polyquaternium-10 (O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride).

[0032] The cationized guar gum is a water-soluble polymer obtained by cationizing guar gum, a polysaccharide in which galactose and mannose are present in a ratio of 1:2, by converting the hydroxylmethyl and hydroxyl groups of the mannose in the main chain and the galactose in the side chain into quaternary ammonium groups. Specific examples include guar hydroxypropyltrimonium chloride and hydroxypropylguar hydroxypropyltrimonium chloride.

[0033] The cationized tara gum is a water-soluble polymer obtained by cationizing tara gum, a polysaccharide in which galactose and mannose are present in a ratio of 1:3. Specific examples include Caesalpinia spinosa hydroxypropyltrimonium chloride.

[0034] The cationized locust bean gum is a water-soluble polymer obtained by cationizing and modifying locust bean gum, a polysaccharide in which galactose and mannose are present in a ratio of 1:4. Specific examples include locust bean hydroxypropyltrimonium chloride.

[0035] The cationized cassia is a water-soluble polymer obtained by cationizing cassia gum, a polysaccharide in which galactose and mannose are present in a ratio of 1:5. Specific examples include cassia hydroxypropyltrimonium chloride.

[0036] The cationized fenugreek gum is a water-soluble polymer obtained by cationizing fenugreek gum, a polysaccharide in which galactose and mannose are present in a 1:1 ratio. Specific examples include fenugreek hydroxypropyltrimonium chloride.

[0037] The cationic starch is a polymer obtained by cationic modification of starch, and specific examples thereof include hydroxypropyltrimonium chloride starch. Examples of cationic monomers in cationic polymers containing structural units derived from the above cationic monomers include dimethyldiallylammonium chloride, diethyldiallylammonium chloride, (meth)acrylamidopropyltrimethylammonium chloride, sulfate of dimethylaminoethyl diethyl (meth)acrylate (such as diethyl sulfate as the sulfate), 2-((meth)acryloyloxy)ethyltrimethylammonium chloride, (meth)acrylamidopropyltrimethylammonium chloride, ethyltrimethylammonium (meth)acrylate chloride, and (meth)acrylamidopropyllauryldimonium chloride. Here, (meth)acrylamido refers to acrylic acid amide, methacrylic acid amide, or a mixture of acrylic acid amide and methacrylic acid amide. (Meth)acrylic acid refers to acrylic acid, methacrylic acid, or a mixture of acrylic acid and methacrylic acid. (Meth)acryloyl refers to acryloyl group-containing, methacryloyl group-containing, or acryloyl group-containing and methacryloyl group-containing.

[0038] Examples of cationic polymers containing structural units derived from the above-mentioned cationic monomers include polydimethylmethylenepiperidinium chloride such as Polyquaternium-6, dimethyldiallylammonium chloride-acrylamide copolymers such as Polyquaternium-7, vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate such as Polyquaternium-11, vinylpyrrolidone-methylvinylimidazolium copolymers such as Polyquaternium-16, ethyl[(methacryloyloxy)ethyl]dimethylammonium ethyl sulfate-N,N-dimethylacrylamide-dimethacrylic acid polyethylene glycol copolymers such as Polyquaternium-52, and Polyquaternium-99 (a polymer of a quaternary ammonium salt consisting of butyl methacrylate-2-ethoxyethyl methacrylate and methacryloyloxyethyltrimethylammonium chloride).

[0039] Specific examples of nonionic polymers include hydroxyethyl cellulose, hydroxypropyl methylcellulose, hydroxypropyl cellulose, methyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymer, vinylpyrrolidone / methacrylic acid / methacrylic acid ester copolymer, vinylpyrrolidone / vinyl acetate / alkylaminoacrylate copolymer, vinylpyrrolidone / vinyl acetate / vinyl propionate copolymer, dimethylhydantoin formaldehyde resin, poly(meth)acrylic acid, (meth)acrylic acid copolymer, poly(meth)acrylic acid ester, (meth)acrylic acid ester copolymer, poly(meth)acrylamide, (meth)acrylic acid amide copolymer, guar gum, dextrin, galactan, and pullulan.

[0040] Specific examples of amphoteric polymers include N-methacryloylethyl N,N-dimethylammonium α-N-methylcarboxybetaine-butyl methacrylate copolymer, (ethyl methacrylate betaine / acrylates) copolymer, hydroxypropyl acrylate-butylaminoethyl methacrylate-octyl acrylate copolymer, dimethyldiallylammonium chloride-acrylic acid copolymer, dimethyldiallylammonium chloride-acrylamide-acrylic acid terpolymer, acrylic acid-methyl acrylate-methacrylamidopropyltrimethylammonium chloride copolymer, hydroxypropyl acrylate / butylaminoethyl methacrylate / octyl acrylate copolymer, etc. These water-soluble polymers may be contained alone or in combination of two or more.

[0041] The oily component imparts a moist feeling to hair. Therefore, the oxidation hair dye composition may contain an oily component within a range that does not impair the effects of the present invention. Examples of the oily component include fats and oils, waxes, higher alcohols, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, esters, silicones, etc.

[0042] Specific examples of oils and fats include argania spinosa kernel oil, lanolin, olive oil, camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, coconut oil, and evening primrose oil. Specific examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin wax. Specific examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, arachyl alcohol, behenyl alcohol, 2-octyldodecanol, lauryl alcohol, myristyl alcohol, decyltetradecanol, and lanolin alcohol.

[0043] Specific examples of hydrocarbons include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, and petrolatum. Specific examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid. Specific examples of alkyl glyceryl ethers include batyl alcohol, chimyl alcohol, selachyl alcohol, and isostearyl glyceryl ether.

[0044] Specific examples of esters include diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl palmitate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethylhexyl palmitate, octyldodecyl ricinoleate, cholesteryl / lanosteryl fatty acids having 10 to 30 carbon atoms, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid esters, dipentaerythritol fatty acid esters, cetyl caprate, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, cetyl 2-ethylhexanoate, and hydrogenated castor oil isostearate.

[0045] Specific examples of silicones include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, highly polymerized silicone, polyether-modified silicone (for example, (PEG / PPG / butylene / dimethicone) copolymer), amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, fluorine-modified silicone, etc. Of these oily components, only one may be contained alone, or two or more may be contained in combination.

[0046] Examples of polyhydric alcohols include glycol and glycerin. Specific examples of glycols include monoalkylene glycols such as ethylene glycol and propylene glycol, and polyalkylene glycols such as diethylene glycol, triethylene glycol, polyethylene glycol, highly polymerized polyethylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, and 1,3-butylene glycol. Specific examples of glycerin include glycerin, diglycerin, and polyglycerin. These polyhydric alcohols may be contained alone or in combination of two or more.

[0047] The surfactant adjusts the viscosity of the oxidative hair dye composition and improves the viscosity stability. Therefore, the oxidative hair dye composition may contain a surfactant within a range that does not impair the effects of the present invention. Examples of the surfactant include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.

[0048] Specific examples of anionic surfactants include alkyl ether sulfates, alkyl sulfates, alkyl ether sulfate ester salts, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylate salts, α-sulfonic acid salts, N-acylamino acid surfactants, phosphate mono- or diester surfactants, sulfosuccinate esters, and derivatives thereof. Specific examples of counter ions of the anionic groups of these surfactants include sodium ions, potassium ions, triethanolamine, and the like. More specifically, examples of alkyl ether sulfate ester salts include sodium polyoxyethylene (hereinafter referred to as POE) lauryl ether sulfate. Specific examples of alkyl sulfate salts include sodium lauryl sulfate and sodium cetyl sulfate. Specific examples of alkyl sulfate derivatives include POE sodium lauryl sulfate. Specific examples of sulfosuccinate esters include disodium lauryl sulfosuccinate.

[0049] Specific examples of cationic surfactants include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, alkyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, lanolin fatty acid aminopropylethyldimethylammonium ethyl sulfate, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, methacryloyloxyethyltrimethylammonium chloride, and behenyltrimethylammonium methylsulfate.

[0050] Specific examples of amphoteric surfactants include cocobetaine, lauramidopropyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidopropyl betaine, and lauryl betaine (lauryl dimethylaminoacetic acid betaine).

[0051] Specific examples of nonionic surfactants include ether-type nonionic surfactants, ester-type nonionic surfactants, alkyl glucosides, etc. Specific examples of ether-type nonionic surfactants include POE cetyl ether (ceteth), POE stearyl ether (steareth), POE behenyl ether, POE oleyl ether (oleth), POE lauryl ether (laureth), POE octyldodecyl ether, POE hexyldecyl ether, POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, etc.

[0052] Specific examples of the ester-type nonionic surfactant include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerin monostearate, POE glycerin monomyristate, POE sorbit tetraoleate, POE sorbit hexastearate, POE sorbit monolaurate, POE sorbit beeswax, polyethylene glycol monooleate, polyethylene monostearate Examples of such glyceryl monostearate include polyethylene glycol, polyethylene glycol monolaurate, lipophilic glyceryl monooleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid esters, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, and decaglyceryl monomyristate.

[0053] Specific examples of alkyl glucosides include alkyl (having 8 to 16 carbon atoms) glucoside, POE methyl glucoside, POE dioleate methyl glucoside, etc. These surfactants may be contained alone or in combination of two or more.

[0054] Specific examples of chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and its salts, hydroxyethylethylenediaminetriacetic acid and its salts, and hydroxyethanediphosphonic acid (HEDP) and its salts, etc. These may be used alone or in combination of two or more.

[0055] A pH adjuster may be added to adjust the pH of the oxidation hair dye composition. Examples of pH adjusters include inorganic acids, organic acids, and salts thereof. Specific examples of inorganic acids include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, and boric acid. Specific examples of phosphoric acid include orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, and metaphosphoric acid. Specific examples of organic acids include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, and benzoic acid. Specific examples of salts include sodium salts, potassium salts, and ammonium salts.

[0056] Specific examples of sugars include monosaccharides such as glucose and galactose, disaccharides such as maltose, sucrose, fructose and trehalose, oligosaccharides, and sugar alcohols. Specific examples of preservatives include paraben, methylparaben, sodium benzoate, etc. Specific examples of stabilizers include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, etc. Specific examples of antioxidants include ascorbic acid, sulfites, etc.

[0057] Specific examples of excipients include sodium sulfate. Additives that may be added include dispersants, such as metal stearates such as calcium stearate and magnesium stearate, talc, crystalline cellulose, starch, and low-substituted hydroxypropyl cellulose.

[0058] These other components may be used alone or in combination of two or more. The dosage form of the first agent is not particularly limited, and specific examples include a dosage form at 25°C of liquid such as an aqueous solution or emulsion, a gel, a foam, a cream, or a solid.

[0059] (Second agent of a three-agent oxidation hair dye composition) The second agent contains an oxidizing agent and, if necessary, the other components described above. (oxidizing agent) The oxidizing agent improves the bleaching property of melanin contained in hair. Specific examples of the oxidizing agent include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, sodium persulfate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, hydrogen peroxide adducts of sulfates, hydrogen peroxide adducts of phosphates, and hydrogen peroxide adducts of pyrophosphates. Only one of these oxidizing agents may be contained alone, or two or more may be contained in combination.

[0060] The lower limit of the oxidizing agent content in the second agent is set as appropriate, but is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, and even more preferably 1.5% by mass or more. When the oxidizing agent content is 0.1% by mass or more, melanin bleaching properties can be further improved. Furthermore, the upper limit of the oxidizing agent content in the second agent is set as appropriate, but is preferably 15.0% by mass or less, more preferably 12.0% by mass or less, and even more preferably 9.0% by mass or less. When the oxidizing agent content is 15.0% by mass or less, hair damage, etc. can be suppressed. Ranges that combine the above upper and lower limits are also contemplated.

[0061] When hydrogen peroxide is blended as an oxidizing agent in the second agent, in order to improve the stability of the hydrogen peroxide, the second agent preferably contains a stabilizer such as sodium stannate, ethylene glycol phenyl ether (phenoxyethanol), hydroxyethanediphosphonic acid, or a salt thereof, etc. Specific examples of hydroxyethanediphosphonates include tetrasodium hydroxyethanediphosphonate and disodium hydroxyethanediphosphonate.

[0062] The dosage form of the second agent is not particularly limited, and specific examples include dosage forms at 25°C such as liquids such as aqueous solutions and emulsions, gels, foams, creams, and solids. (Third agent) The third agent contains (A) cystine and, if necessary, the other components described above.

[0063] ((A) Cystine) (A) Cystine improves the feel of hair after use of the oxidation hair dye composition. Specific examples of component (A) include L-cystine, DL-cystine, and D-cystine.

[0064] The component (A) may be contained alone or in combination of two or more kinds. The lower limit of the content of component (A) in the mixture of the oxidative hair dye composition at the time of use can be set as appropriate, but is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and even more preferably 0.01% by mass or more. When the content of component (A) is 0.001% by mass or more, the feel of hair after use of the oxidative hair dye composition can be further improved. On the other hand, the upper limit of the content of component (A) can be set as appropriate, but is preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 2% by mass or less. When the content of component (A) is 10% by mass or less, the feel of hair after use of the oxidative hair dye composition can be efficiently improved.

[0065] From the viewpoint of improving the storage stability of component (A), the third agent is preferably prepared in a solid form at 25°C. The form of the solid form is not particularly limited. It may be a powder, granules, tablet, or tablet. When the third agent is prepared in a solid form, an excipient or dispersant may be blended. The third agent may also be prepared as a hydrous cystine-containing composition having a pH of 8.0 or less. The hydrous cystine-containing composition contains cystine and water, has a pH of 8.0 or less, and constitutes the third agent. The form of the hydrous cystine-containing composition is not particularly limited as long as it contains even a small amount of water, and may be, for example, a liquid, gel, cream, foam, or the like. A hydrous cystine-containing composition in a solid form or with a pH of 8.0 or less does not dissolve cystine in an alkaline solvent, and therefore can further suppress deterioration over time that occurs when cystine is dissolved in an alkaline solvent.

[0066] <(C) Post-treatment agent> The (C) post-treatment agent contains, for example, an acid or alkaline agent, and, if necessary, the other components described above. The (C) post-treatment agent differs from the above-mentioned hair dye composition in particular in the content of the acid or alkaline agent described below. First, hair is treated with a hair dye composition containing cystine dissolved in an alkaline solvent. Then, by treating with the (C) post-treatment agent, the cystine that has penetrated into the hair is precipitated. By applying the (C) post-treatment agent after the hair dye composition, deterioration in the appearance of the hair after hair dyeing can be suppressed and the sense of damage suppression can be improved.

[0067] (acid or alkaline agent) Examples of acids include inorganic acids, organic acids, and salts thereof. Specific examples of inorganic acids include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, and boric acid. Specific examples of phosphoric acids include orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, and metaphosphoric acid. Specific examples of organic acids include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, levulinic acid, ascorbic acid, and pyrrolidonecarboxylic acid.

[0068] Examples of alkaline agents include ammonia, alkanolamines, silicates, carbonates, bicarbonates, carbamates, metasilicates, phosphates, organic amines, basic amino acids, etc. Specific examples of each component are the same as those listed in the alkaline agent section of the first agent.

[0069] These acidic or alkaline agents may be used alone or in combination of two or more. (C) The post-treatment agent preferably contains an acid, from the viewpoint of being excellent in the effect of suppressing deterioration in the appearance of hair after a hair dye treatment and the effect of improving the feeling of damage suppression, and it is more preferable that it contains at least one acid selected from citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, levulinic acid, ascorbic acid, pyrrolidonecarboxylic acid, and phosphoric acid.

[0070] The lower limit of the content of the acid or alkali agent in the (C) post-treatment agent is set appropriately, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.5% by mass or more. When the content of component (A) is 0.01% by mass or more, deterioration in the appearance of hair after a hair dye treatment can be suppressed and the feeling of damage suppression can be improved.

[0071] On the other hand, when the hair dye composition is rinsed off and then the post-treatment agent (C) is applied to the hair, the upper limit of the content of the acid or alkali agent in the post-treatment agent (C) is set appropriately, but is preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less. When the content of component (A) is 5% by mass or less, the effect of inhibiting discoloration of hair after a hair dye treatment can be improved.

[0072] Furthermore, when the post-treatment agent (C) is applied over the hair dye composition that has already been applied to the hair, the upper limit of the content of the acid or alkali agent in the post-treatment agent (C) is set appropriately, but is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 8% by mass or less. When the content of component (A) is 15% by mass or less, the effect of inhibiting discoloration of hair after a hair dye treatment can be improved.

[0073] The formulation of (C) the post-treatment agent is not particularly limited, and specific examples include formulations at 25°C in liquid form such as an aqueous solution or emulsion, gel form, foam form, cream form, solid form, and the like. (Method of using the hair treatment composition of the present embodiment) Next, a method for using the hair treatment composition of this embodiment will be described. In the hair treatment method using the hair treatment composition of this embodiment, first, the first to third agents are mixed to prepare a mixture of an oxidative hair dye composition. This mixture is applied to the hair in a conventional manner. Alternatively, the first to third agents may be applied separately to the hair, and then the first to third agents may be mixed on the hair to prepare a mixture of an oxidative hair dye composition. When any of the first to third agents is solid, it is preferable to mix it with the other liquid agents before applying it to the hair.

[0074] The timing of application of (C) post-treatment agent is not particularly limited, as long as it is after the mixture has sufficiently penetrated the hair. Specifically, for example, after the mixture has been applied to the hair, the post-treatment agent is applied at 20 to 40°C, preferably within 40 minutes, more preferably within 35 minutes, and even more preferably within 30 minutes. Alternatively, the post-treatment agent (C) may be applied to the hair after rinsing the mixture, or may be applied on top of the mixture.

[0075] In the hair treatment composition of the present invention, the amount of (C) post-treatment agent used relative to the mixture of oxidative hair dye compositions is not particularly limited and may be adjusted appropriately depending on the intended use. Specifically, for example, the amount of (C) post-treatment agent used is, for example, 50 to 300 parts by mass, and preferably 100 to 200 parts by mass, relative to 100 parts by mass of the mixture of oxidative hair dye compositions.

[0076] (C) After the post-treatment agent has been applied, a rinsing step is carried out at room temperature, preferably within 15 minutes, more preferably within 10 minutes, followed by a step of drying the hair, preferably according to a conventional method.

[0077] As described above, hair dyed with the hair treatment composition has an improved appearance compared to hair dyed without the use of (C) a post-treatment agent. The improved appearance of hair includes, for example, an improved effect of inhibiting color fading and an improved durability of luster.

[0078] Therefore, the method of using the hair treatment composition of the present embodiment may be applied as a method for improving the appearance of hair that has been dyed with the hair treatment composition. (Effects of this embodiment) The effects of the hair treatment composition of this embodiment will be described below.

[0079] (1) The hair treatment composition of this embodiment comprises (A) an oxidative hair dye composition containing cystine and (B) an oxidative hair dye as a dye, and (C) a post-treatment agent. Therefore, deterioration of the appearance of hair after hair dyeing can be suppressed. More specifically, the effect of suppressing color fading can be improved, and further, the durability of gloss can be improved. Furthermore, the sense of suppression of damage to hair after hair dyeing can be improved.

[0080] (2) In particular, when the post-treatment agent (C) contains an acid, the effect of suppressing deterioration in the appearance of hair after a hair dyeing treatment can be further improved, and the feeling of suppressing damage to hair after a hair dyeing treatment can be further improved. (3) In particular, when the hair dye composition further contains at least one alkaline agent (D) selected from ammonia and ammonium salts, the effect of suppressing deterioration in the appearance of hair after a hair dyeing treatment can be further improved, and the feeling of suppressing damage to hair after a hair dyeing treatment can be further improved.

[0081] (4) In particular, when the post-treatment agent (C) contains at least one selected from citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, levulinic acid, ascorbic acid, pyrrolidonecarboxylic acid, and phosphoric acid, the effect of suppressing deterioration of hair appearance after a hair dyeing treatment can be further improved, and the feeling of suppressing damage to hair after a hair dyeing treatment can be further improved.

[0082] (Example of change) The above embodiment may be modified as follows: The above embodiment and the following modifications may be combined with each other within the scope of technical compatibility.

[0083] In the above embodiment, the three-component oxidative hair dye composition is composed of a first component containing an oxidative dye as a dye (B) and an alkaline agent (D), a second component containing an oxidizing agent, and a third component containing cystine (A). However, this does not preclude the composition from being a two-component oxidative hair dye composition by blending cystine (A) with the first and / or second components.

[0084] In the above embodiment, the hair dye composition is configured as a multi-component oxidative hair dye composition. However, the hair dye composition may be configured as a semi-permanent hair dye composition using a direct dye as the dye (B). The semi-permanent hair dye composition may be configured as a single-component composition, or may be configured as a multi-component composition by dividing the components.

[0085] Specific examples of direct dyes include acid dyes, nitro dyes, basic dyes (cationic dyes), and disperse dyes. Specific examples of acid dyes include Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 201, Red No. 227, Red No. 230 (1), Red No. 230 (2), Red No. 231, Red No. 232, Red No. 401, Red No. 502, Red No. 503, Red No. 504, Red No. 506, Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Yellow No. 402, Yellow No. 403 (1), Yellow No. 406, Yellow No. 407, Orange No. 205, Orange No. 20 Acid Blue 1, Acid Blue 3, Acid Blue 62, Acid Black 52, Acid Brown 13, Acid Green 50, Acid Orange 6, Acid Red 14, Acid Red 35, Acid Red 73, Acid Red 184, and Brilliant Black 1.

[0086] Specific examples of nitro dyes include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picramic acid, picric acid, and salts thereof, HC Blue No. 2, HC Blue No. 4, HC Blue No. 5, HC Blue No. 6, HC Blue No. 8, HC Blue No. 9, HC Blue No. 10, HC Blue No. 11, HC Blue No. 12, HC Blue No. 13, HC Blue No. 14, HC Brown No. 1, HC Brown No. 2, HC Green No. 1, HC Orange No. 1, HC Orange No. 2, HC Orange No. 3, HC Orange No. 5, HC Red No. 1, HC Red No. 3, HC Red No. 7, HC Red No. 8, HC Red No. 9, HC Red No. 10, HC Red No. 11, HC Red No. 13, HC Red No. 14, HC Violet No. 1, HC Violet No. 2 ... No.2, HC Yellow No.4, HC Yellow No.5, HC Yellow No.6, HC Yellow No.7, HC Yellow No.8, HC Yellow No.9, HC Yellow No.10, HC Yellow No.11, HC Yellow No.12, HC Yellow No.13, HC Yellow No.14, HC Yellow No.15, etc.

[0087] Specific examples of basic dyes (cationic dyes) include Red No. 213, Red No. 214, Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 75, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Basic Brown 1, Basic Brown 4, Basic Brown 16, Basic Orange 1, Basic Orange 2, Basic Red 1, Basic Red 2, Basic Red 22, Basic Red 46, Basic Red 51, Basic Red 76, Basic Red 118, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 4, Basic Violet 10, Basic Violet 11:1, Basic Violet 14, Basic Violet 16, Basic Yellow 11, Basic Yellow 28, and Basic Yellow 57.

[0088] Specific examples of disperse dyes include Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse Violet 4, and Disperse Violet 15.

[0089] As the direct dye, 1-amino-4-methylanthraquinone, 1,4-diaminoanthraquinone, and their salts, as well as direct dyes specified in the "Ministerial Ordinance Specifying Tar Dyes Usable for Pharmaceuticals, etc." (Notified by the Ministry of Health and Welfare in 1966), may be used. The above direct dyes may be used alone or in combination of two or more.

[0090] In the above embodiment, the hair dye composition or (C) post-treatment agent constituting the hair treatment composition may be configured such that each component is further separated during storage to form a multi-component system, which is then mixed immediately before use. Alternatively, the hair dye composition may be configured such that each component is applied in solid form, with the components other than the solvent being a single-component system. These may then be mixed with the solvent at the time of use. [Example]

[0091] Next, the above-described embodiment will be described in more detail with reference to examples and comparative examples. Note that the present invention is not limited to the configurations described in the examples section. Test Example 1: Preparation and Evaluation of Hair Treatment Compositions First to third agents of oxidation hair dye compositions were prepared, each containing the components shown in Tables 1 to 3. In addition, (C) post-treatment agents were prepared, each containing the components shown in Table 4. The numerical values ​​in the columns showing each component in Tables 1 to 4 indicate the content of the component in that column, and the units are % by mass.

[0092] Regarding each component shown in the component name column of each table, the components corresponding to components (A), (B), and (D) of the present invention are indicated by the symbols A, B, and D in the left column of the table. In Table 1, "stearyltrimethylammonium chloride" indicates the amount of the reagent blended.

[0093] <Hair dye treatment> Examples 1 to 15, 21, and 22, Comparative Examples 1 to 3 The prepared first, second, and third parts were mixed in a mass ratio of 1:2:0.3 in the combinations and amounts shown in Tables 5 and 6. 23.1 g of the mixture as an oxidative hair dye composition was applied to 10 g of a hair bundle sample (same human hair, hair diameter: 75 to 95 micrometers) and treated at 37°C for 35 minutes. After rinsing with water, 1.2 g of (C) post-treatment agent of each Example and Comparative Example 1 listed in Tables 5 and 6 was applied to the wet hair and treated for 5 minutes to obtain intermediate-treated hair bundles. The intermediate-treated hair bundles were washed with water and dried with a hair dryer to obtain the treated hair bundles of each Example. In Comparative Examples 2 and 3, the post-treatment agent (C) was not applied, and the mixture as an oxidative hair dye composition was applied to the hair, followed by rinsing with water and drying with a hair dryer to obtain the treated hair bundles of each Example.

[0094] Examples 16 to 20 The prepared first, second, and third parts were mixed in a mass ratio of 1:2:0.3 in the combinations and amounts shown in Table 6. 23.1 g of the mixture serving as the oxidative hair dye composition was applied to 10 g of a hair bundle sample (identical human hair, hair diameter: 75 to 95 micrometers) and treated at 37°C for 35 minutes. 2.3 g of (C) post-treatment agent from Examples 16 to 20 listed in Table 6 was then applied on top of the oxidative hair dye composition, combed, and treated for 5 minutes to obtain an intermediate-treated hair bundle. The intermediate-treated hair bundle was then rinsed with water and dried with a hair dryer to obtain the treated hair bundle for each example.

[0095] <Evaluation method for discoloration inhibition> Ten expert panelists visually evaluated discoloration after processing with (C) the post-treatment agent under a standard light source, using the color before processing with (C) the post-treatment agent as the standard. If 9 or more panelists rated discoloration, the rating was "poor: 1," if 7-8 panelists rated it as "slightly poor: 2," if 5-6 panelists rated it as "fair: 3," if 3-4 panelists rated it as "good: 4," and if 2 or less panelists rated it as "excellent: 5." The evaluation results are shown in the "Discoloration Prevention" section of Tables 5 and 6.

[0096] <Evaluation method for fading inhibition> After washing each dyed hair strand 10 times with shampoo (Bigen Treatment Shampoo, manufactured by Hoyu Co., Ltd.), 10 expert panelists visually evaluated the color retention (color retention) under a standard light source. Each expert panelist scored the results on a 5-point scale: excellent (5 points), excellent (4 points), good (3 points), poor (2 points), and very poor (1 point). The panelists' scores were averaged, and the evaluation results were determined as follows: an average of 4.6 points or more was designated "excellent: 5," an average of 3.6 points to less than 4.6 points was designated "good: 4," an average of 2.6 points to less than 3.6 points was designated "fair: 3," an average of 1.6 points to less than 2.6 points was designated "slightly poor: 2," and an average of less than 1.6 points was designated "poor: 1." The evaluation results are shown in the "Fade Inhibition" column of Tables 5 and 6.

[0097] <Long-lasting shine> The gloss durability was evaluated daily by 20 subjects based on whether the gloss immediately after dyeing lasted for one week. The treated hair tresses for each example were shampooed and treated once a day, simulating a normal daily routine. The evaluation was performed on a five-point scale: the most subjects who rated the gloss as lasting for one week were given an "excellent" rating of 5; the most subjects who rated it as lasting for 5-6 days were given a "good" rating of 4; the most subjects who rated it as lasting for 3-4 days were given a "fair" rating of 3; the most subjects who rated it as lasting for 2 days were given a "fair" rating of 2; and the most subjects who rated it as lasting for up to one day were given a "poor" rating of 1. The evaluation results are shown in the "Gloss Durability" column in Tables 5 and 6.

[0098] <Method for evaluating hair damage suppression> The hair damage suppression feeling was evaluated as follows in a sensory test by 10 panelists who are experts in hair feel. The 10 panelists compared the feel of the treated hair bundle when running their fingers through it with that of Comparative Example 3. If 9 or more panelists rated the treated hair bundle as being smoother and easier to run their fingers through than Comparative Example 3, the rating was "excellent: 5", if 7 to 8 panelists rated it as "good: 4", if 5 to 6 panelists rated it as "fair: 3", if 3 to 4 panelists rated it as "slightly poor: 2", and if 2 or less panelists rated it as "poor: 1". The evaluation results are shown in the "Hair damage suppression feeling" column in Tables 5 and 6.

[0099] [Table 1]

[0100] [Table 2]

[0101] [Table 3]

[0102] [Table 4]

[0103] [Table 5]

[0104] [Table 6] As shown in Tables 5 and 6, it was confirmed that each Example achieved a satisfactory result or better in the evaluations of color change prevention, color fading prevention, gloss retention, and hair damage prevention. It was confirmed that Comparative Example 1, which did not contain component (A), was inferior to each Example in the evaluations of color fading prevention, gloss retention, and hair damage prevention. It was confirmed that Comparative Examples 2 and 3, which did not use the (C) post-treatment agent, were inferior to each Example in the evaluations of color fading prevention, gloss retention, and hair damage prevention.

Claims

1. A hair treatment composition comprising: (A) a hair dye composition having cystine and (B) a dye; and (C) a post-treatment agent.

2. The hair treatment composition according to claim 1 , wherein the (C) post-treatment agent comprises an acid.

3. The hair treatment composition according to claim 1, further comprising (D) at least one alkaline agent selected from ammonia and ammonium salts.

4. 3. The hair treatment composition according to claim 2, wherein the acid comprises at least one selected from the group consisting of citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, levulinic acid, ascorbic acid, pyrrolidonecarboxylic acid, and phosphoric acid.

5. The hair treatment composition according to claim 1, wherein hair dyed with the hair treatment composition has an improved appearance compared to hair dyed without the use of the post-treatment agent (C).

6. The hair treatment composition according to claim 5, wherein the improvement in hair appearance is prevention of color fading and / or prolonged shine.

7. A method for improving the appearance of hair by dyeing the hair with the hair treatment composition according to any one of claims 1 to 6.

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