Hair treatment composition and method for using the same

Abstract

To provide a technology that enables suppression of fading in hair treated with a hair cosmetic composition containing a direct dye.SOLUTION: A hair treatment composition comprises: a first hair cosmetic composition containing a direct dye; and a second hair cosmetic composition to be applied to the hair after the first hair cosmetic composition has been applied to the hair, the second hair cosmetic composition comprising a polymer compound.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present specification relates to a hair treatment composition comprising a hair cosmetic composition containing a direct dye and a hair cosmetic composition containing a polymer compound, and a method of using the same. [Background technology]

[0002] Patent Document 1 discloses a hair dye composition containing a direct dye and used for dyeing hair. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-123565 Summary of the Invention [Problem to be solved by the invention]

[0004] Direct dyes adhere to hair through ionic bonds, which are relatively weak bonds, and are therefore unlikely to penetrate deep into the hair. Furthermore, direct dyes do not undergo polymerization reactions like oxidative dyes, and therefore adhere to hair in relatively small molecular forms. Therefore, even if hair is dyed with a composition containing a direct dye, there is a problem that fading easily occurs during daily activities such as washing. This specification provides a technology that can suppress fading of hair to which a hair cosmetic composition containing a direct dye is applied. [Means for solving the problem]

[0005] A first aspect disclosed in this specification is a hair treatment composition comprising a first hair cosmetic composition containing a direct dye and a second hair cosmetic composition to be applied to the hair after the first hair cosmetic composition, the second hair cosmetic composition containing a polymer compound. According to this configuration, the hair is dyed by applying the first hair cosmetic composition to the hair. Then, when the second hair cosmetic composition is applied to the hair, the polymer compound forms a film on the hair surface. This prevents the dye from flowing directly out of the hair, thereby preventing hair fading.

[0006] In a second aspect disclosed by the present specification, in the first aspect, the polymer compound may include at least one of a cationic polymer compound and a nonionic polymer compound. When hair is damaged, its surface becomes negatively charged. In the above configuration, the polymer compound includes a cationic polymer compound having a positively charged moiety or a nonionic polymer compound having no charged moiety. Therefore, these polymer compounds are more likely to bind to hair than an anionic polymer compound having a negatively charged moiety, and can form a suitable film on the hair surface.

[0007] In a third aspect disclosed in the present specification, in the first or second aspect, the direct dye may include a basic dye, and when the first hair cosmetic composition is applied to hair, the effect of improving hair-dyeing power can be obtained.

[0008] A fourth aspect disclosed by the present specification is any one of the first to third aspects, wherein the content of the direct dye relative to the total amount of the first hair cosmetic composition is 1 wt % or less. With this configuration, when the first hair cosmetic composition is applied to hair, the effects of improving spreadability when applied to hair and suppressing dripping from hair can be obtained.

[0009] In a fifth aspect disclosed by the present specification, in any one of the first to fourth aspects, the second hair cosmetic composition may further contain an organic acid. According to this configuration, when the second hair cosmetic composition is applied to hair, the organic acid causes the hair to astringent. This further prevents the dye from flowing directly out of the hair, thereby further preventing hair fading.

[0010] In a sixth aspect disclosed herein, the content of the organic acid in the second hair cosmetic composition of the fifth aspect may be 0.05% by weight or more and 1.5% by weight or less relative to the total weight of the second hair cosmetic composition, which advantageously promotes hair astringency and further suppresses fading.

[0011] In a seventh aspect disclosed by the present specification, in any one of the first to sixth aspects, the hair treatment composition may be applied to the hair after a hair dye composition has been applied. Even hair dyed with a hair dye composition gradually fades with daily life. According to this configuration, the first hair cosmetic composition can replenish dye in hair dyed with the hair dye composition, thereby maintaining the hair color and providing a color change that suits the user's preferences.

[0012] In an eighth aspect disclosed by the present specification, in the seventh aspect, the hair dye composition may contain an oxidation dye.

[0013] In a ninth aspect disclosed by the present specification, in any one of the first to eighth aspects, the first hair cosmetic composition may be a hair wash composition for washing the hair.

[0014] A tenth aspect disclosed by the present specification is a method for using a hair treatment composition. The method comprises a first step of applying a first hair cosmetic composition containing a direct dye to hair, a second step of rinsing off the first hair cosmetic composition from the hair, and a third step of applying a second hair cosmetic composition containing a polymer compound to the hair after the second step. The second hair cosmetic composition from the hair may or may not be rinsed off. DETAILED DESCRIPTION OF THE INVENTION

[0015] One embodiment of the hair treatment composition disclosed in this specification is described below. The hair treatment composition comprises a first hair cosmetic composition containing a direct dye and a second hair cosmetic composition containing a polymer compound. The second hair cosmetic composition is applied to the hair after the first hair cosmetic composition has been applied to the hair. The first and second hair cosmetic compositions of this embodiment are described below.

[0016] [First hair cosmetic composition] The first hair cosmetic composition (hereinafter simply referred to as the "first composition") contains a direct dye.

[0017] [Direct dye] Direct dyes are colored compounds that are formulated to color hair by adhering to or penetrating the hair. Examples of direct dyes include basic dyes, acid dyes, natural dyes, nitro dyes, HC dyes, and disperse dyes.

[0018] Examples of basic dyes include Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 41, Basic Blue 75, Basic Blue 99, Basic Blue 124, Basic Brown 4, Basic Brown 16, Basic Green 1, Basic Green 4, Basic Orange 1, Basic Orange 2, Basic Red 1, Basic Red 2, Basic Red 22, Basic Red 51, Basic Red 76, Basic Violet 1, Basic Violet 2, Basic Violet 4, Basic Violet 10, Basic Violet 14, Basic Yellow 11, Basic Yellow 28, Basic Yellow 87, and Basic Brown 16. Among these, Basic Blue 75 (basic blue 75), Basic Blue 124 (basic blue 124), Basic Violet 2 (basic purple 2), Basic Yellow 87 (basic yellow 87), Basic Red 51 (basic red 51), and Basic Brown 16 (basic brown 16) are preferred.

[0019] 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. 230 (1), Yellow No. 4, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Orange No. 205, Orange No. 207, Orange No. 402, Green No. 3, Green No. 204, Green No. 401, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202, Brown No. 201, and Black No. 401. Of these, Purple No. 401 is preferred.

[0020] Examples of natural dyes include gardenia dye, turmeric dye, annatto dye, copper chlorophyllin sodium, paprika dye, lac dye, safflower dye, henna, etc. 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.

[0021] Examples of HC dyes include HC Blue No. 2, HC Blue No. 5, HC Blue No. 9, HC Blue No. 10, HC Blue No. 11, HC Blue No. 12, HC Blue No. 16, HCO range No. 1, HCO range No. 2, HC Red No. 1, HC Red No. 3, HC Red No. 10, HCViolet No. 1, HCViolet No. 2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 10, HC Yellow No. 11, and HC Yellow No. 12.

[0022] Examples of disperse dyes include Disperse Black 9, Disperse Blue 1, Disperse Blue 3, 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.

[0023] The direct dye may contain only one of these or a combination of two or more of them depending on the desired color tone. Among these, basic dyes, acid dyes, and HC dyes are preferred, with basic dyes being particularly preferred, from the viewpoint of improving hair dyeing power and enriching color variations.

[0024] The content of the direct dye relative to the total amount of the first composition can be appropriately determined depending on the tone and shade of the desired hair color. The lower limit of the content is, for example, 0.0005% by weight or more, for example, 0.001% by weight or more, for example, 0.003% by weight or more, for example, 0.01% by weight or more, for example, 0.03% by weight or more, for example, 0.09% by weight or more, or for example, 0.1% by weight or more. The upper limit of the content is, for example, 1.5% by weight or less, for example, 1% by weight or less, for example, 0.9% by weight or less, for example, 0.8% by weight or less, for example, 0.7% by weight or less, for example, 0.6% by weight or less, or for example, 0.5% by weight or less. The range of the content can be set by appropriately combining the above-mentioned upper and lower limits, for example, 0.0005% by weight to 1.5% by weight, for example, 0.001% by weight to 1% by weight, for example, 0.003% by weight to 0.9% by weight, for example, 0.01% by weight to 0.8% by weight, for example, 0.03% by weight to 0.7% by weight, for example, 0.09% by weight to 0.6% by weight, or for example, 0.1% by weight to 0.5% by weight. A content of 0.0005% by weight or more is likely to provide sufficient hair dyeing power. Furthermore, a content of 1.5% by weight or less is likely to provide improved agent stability, improved spreadability when applied to hair, and reduced dripping from hair.

[0025] [pH of the first composition] The pH of the first composition is not particularly limited. The lower limit of the pH of the first composition is, for example, 3.0 or more, for example, 3.5 or more, or for example, 4.0 or more. The upper limit of the pH is, for example, 8.0 or less, for example, 7.5 or less, or for example, 7.0 or less. If the pH of the first composition is 3.0 or more, hair color change after dyeing is unlikely to occur. If the pH of the first composition is 8.0 or less, hair swollen by dyeing is easily astringent, and outflow of the direct dye can be suppressed.

[0026] [Second hair cosmetic composition] The second hair cosmetic composition (hereinafter simply referred to as the "second composition") contains a polymer compound. The second composition also optionally contains an organic acid. The second composition is applied to the hair after the first composition has been applied to the hair.

[0027] [High molecular compound] The polymer compound is blended to form a film on the surface of the hair. By forming a film on the surface of the hair, the direct dye is less likely to flow out of the hair, and hair fading can be suppressed. Examples of the polymer compound include cationic polymer compounds, anionic polymer compounds, nonionic polymer compounds, and amphoteric polymer compounds.

[0028] Examples of cationic polymer compounds include hydroxyethyl cellulose dimethyl diallyl ammonium chloride, hydroxyethyl cellulose dimethyl diallyl ammonium chloride, O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride (polyquaternium-10), guar hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride, Caesalpinia spinosa hydroxypropyltrimonium chloride, locust bean hydroxypropyltrimonium chloride, cassia hydroxypropyltrimonium chloride, and cocamidopropyl bean hydroxypropyltrimonium chloride. Examples include hydroxypropyltrimonium chloride, hydroxypropyltrimonium starch chloride, polydimethylmethylenepiperidinium chloride (Polyquaternium-6), dimethyldiallylammonium chloride-acrylamide copolymer (Polyquaternium-7), vinylpyrrolidone-N,N-dimethylaminoethyl methacrylate copolymer diethyl sulfate (Polyquaternium-11), vinylpyrrolidone-methylvinylimidazolium copolymer, ethyl[(methacryloyloxy)ethyl]dimethylammonium ethyl sulfate-N,N-dimethylacrylamide-polyethylene glycol dimethacrylate copolymer, etc.

[0029] Examples of anionic polymer compounds 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, (acrylates / diacetoneacrylamide) copolymer, (acrylates / diacetoneacrylamide) copolymer AMP, (alkyl acrylate / octylacrylamide) copolymer, (ethyl methacrylate / acrylates) copolymer, and the like.

[0030] Examples of nonionic polymer compounds include hydroxyethyl cellulose, hydroxypropyl methylcellulose, hydroxypropyl cellulose, methyl cellulose, highly polymerized polyethylene glycol, 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, dextrin, galactan, and pullulan.

[0031] Examples of amphoteric polymer compounds 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, and hydroxypropyl acrylate-butylaminoethyl methacrylate-octyl acrylate copolymer.

[0032] The polymer compound may contain only one of these or a combination of two or more of them. Among these, cationic polymer compounds and nonionic polymer compounds are preferred from the viewpoint of forming a suitable film on the hair surface, and among them, hydroxyethyl cellulose, hydroxypropyl cellulose, and polyquaternium-10 are particularly preferred.

[0033] For example, when the direct dye contained in the first composition is a basic dye, it is particularly preferable that the polymer compound contains at least one of a cationic polymer compound and a nonionic polymer compound. Because basic dyes have a positive charge, they tend to form ionic bonds with substances having the opposite polarity (i.e., a negative charge). When the polymer compound contains a cationic polymer compound or a nonionic polymer compound that does not have a negatively charged moiety, applying the second composition to hair prevents the basic dye that has adhered to the hair by applying the first composition from bonding with the polymer compound, thereby preventing the direct dye from leaching out of the hair.

[0034] The content of the polymer compound relative to the total amount of the second composition is not particularly limited, but the lower limit of the content is, for example, 0.01 wt% or more, for example, 0.05 wt% or more, for example, 0.1 wt% or more, for example, 0.15 wt% or more, or for example, 0.2 wt% or more. The upper limit of the content is, for example, 1.5 wt% or less, for example, 1.2 wt% or less, for example, 1 wt% or less, for example, 0.9 wt% or less, or for example, 0.7 wt% or less. The content range can be set by appropriately combining the above upper and lower limits, for example, 0.01 wt% to 1.5 wt% or less, for example, 0.05 wt% to 1.2 wt% or less, for example, 0.1 wt% to 1 wt% or less, for example, 0.15 wt% to 0.9 wt% or less, or for example, 0.2 wt% to 0.7 wt%. If the content is 0.01 wt% or more, a film is formed on the surface of the hair, which can effectively suppress fading. Furthermore, if the content is 1.5% by weight or less, the feel of hair, such as smoothness of running fingers through the hair, can be improved.

[0035] [Organic acid] The organic acid may be added to astringent the hair, which makes it difficult for the direct dye to flow out of the hair, thereby suppressing fading of the hair.

[0036] Examples of organic acids include tartaric acid, levulinic acid, lactic acid, glycolic acid, acetic acid, citric acid, malic acid, succinic acid, fumaric acid, maleic acid, oxalic acid, ascorbic acid, and folic acid. Among these, from the viewpoint of inhibiting discoloration, citric acid, tartaric acid, succinic acid, lactic acid, malic acid, and levulinic acid are preferred, and citric acid, tartaric acid, and succinic acid are particularly preferred. The organic acid may contain only one of these, or may contain a combination of two or more.

[0037] The lower limit of the content of the organic acid relative to the total amount of the second composition is, for example, 0.001% by weight or more, such as 0.002% by weight or more, such as 0.003% by weight or more, or for example, 0.005% by weight or more. The upper limit of the content is, for example, 0.1 wt% or less, for example, 0.07 wt% or less, for example, 0.05 wt% or less, or for example, 0.01 wt% or less. The content range can be set by appropriately combining the above upper and lower limits, for example, 0.001 wt% to 0.1 wt% or less, for example, 0.002 wt% to 0.07 wt% or less, for example, 0.003 wt% to 0.05 wt% or less, or for example, 0.005 wt% to 0.01 wt% or less. If the content is 0.001 wt% or more, hair astringency is promoted and discoloration can be suitably suppressed. Furthermore, if the content is 0.1 wt% or less, the stability of the agent can be suitably controlled.

[0038] [pH of the second composition] The pH of the second composition is not particularly limited. The lower limit of the pH of the second composition is, for example, 3.5 or more, for example, 4.0 or more, or for example, 4.5 or more. The upper limit of the pH is, for example, 7.5 or less, for example, 7.0 or less, or for example, 6.5 or less. If the pH of the second composition is 3.5 or more, it is easy to obtain an excellent repair effect on damaged hair. If the pH of the second composition is 7.5 or less, it is easy to astringe the hair after applying the first composition, and it is possible to suppress the outflow of the direct dye.

[0039] [Other ingredients] In addition to the above-mentioned components, the first composition and the second composition may contain an appropriately selected solvent, oily component, surfactant, pH adjuster, chelating agent, etc., as long as the properties and effects of each composition are not impaired. Each of the first composition and the second composition may contain only one of these, or a combination of two or more.

[0040] [solvent] Examples of solvents include water and organic solvents. Examples of organic solvents include ethanol, isopropanol, benzyl alcohol, benzyloxyethanol, glycol, and glycerin. Examples of glycols include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerin include glycerin, diglycerin, and polyglycerin. These solvents may be used alone or in combination of two or more.

[0041] [Oily ingredients] The oily component is blended to make the hair supple and to form the first and second compositions into the desired formulation. Examples of the oily component include silicone derivatives, polyhydric alcohols, oils and fats, waxes, higher alcohols, higher fatty acids, alkyl glyceryl ethers, and esters.

[0042] Examples of silicone derivatives include dimethylpolysiloxane and its terminal hydroxy-modified derivatives (e.g., dimethiconol), poly(oxyethylene-oxypropylene)-butylene-methylpolysiloxane copolymer, polyether-modified silicone, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, amino-modified silicone, dimethicone / vinyldimethicone crosspolymer, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, etc. Among these, poly(oxyethylene-oxypropylene)-butylene-methylpolysiloxane copolymer, dimethiconol, and polyether-modified silicone are particularly preferred.

[0043] Examples of polyhydric alcohols include glycols, glycerins, and alicyclic polyols. Examples of glycols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerins include glycerin, diglycerin, and polyglycerin. Examples of alicyclic polyols include cyclopentane polyols and cyclohexane polyols such as inositol.

[0044] Examples of fats and oils include various vegetable oils, animal oils, etc. Examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, etc.

[0045] Examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, cetostearyl alcohol, arachyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, and lanolin alcohol.

[0046] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, and lanolin fatty acid.

[0047] Examples of alkyl glyceryl ethers include batyl alcohol (monostearyl glyceryl ether), chimyl alcohol (monocetyl glyceryl ether), selachyl alcohol (monooleyl glyceryl ether), and isostearyl glyceryl ether.

[0048] Examples of esters include any monocarboxylic acid ester, dicarboxylic acid monoester, and dicarboxylic acid diester other than component (B). Examples include various monoesters of dicarboxylic acids such as oxalic acid, succinic acid, sebacic acid, and adipic acid. Other examples include various esters of monocarboxylic acids such as lactic acid, acetic acid, stearic acid, myristic acid, ricinoleic acid, octanoic acid, and isooctanoic acid.

[0049] [Surfactants] The surfactant solubilizes the first composition and the second composition as a component for solubilizing or emulsifying each component, and adjusts the viscosity or improves viscosity stability when the first composition and the second composition are used. Examples of surfactants include amphoteric surfactants, anionic surfactants, cationic surfactants, and nonionic surfactants.

[0050] Examples of amphoteric surfactants include amino acid type amphoteric surfactants and betaine type amphoteric surfactants.

[0051] Examples of amino acid amphoteric surfactants include glycine amphoteric surfactants such as N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium (sodium lauroamphoacetate), alkyldiaminoethylglycine hydrochloride, sodium lauryldiaminoethylglycine, and palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethylethylenediamine sodium, and aminopropionic acid amphoteric surfactants such as sodium laurylaminopropionate, sodium laurylaminodipropionate, and triethanolamine laurylaminopropionate. Among these, from the viewpoints of foam performance and detergency, aminopropionic acid amphoteric surfactants such as sodium laurylaminopropionate, sodium laurylaminodipropionate, and triethanolamine laurylaminopropionate are preferred, with sodium laurylaminopropionate being particularly preferred.

[0052] Examples of betaine-type amphoteric surfactants include aminoacetic acid betaine-type amphoteric surfactants such as lauryl dimethylaminoacetic acid betaine, coconut oil alkyl betaine, myristyl dimethylaminoacetic acid betaine, stearyl dimethyl betaine sodium, coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, and stearyl dihydroxyethyl betaine; and sulfobetaine-type amphoteric surfactants such as lauryl hydroxysulfobetaine. Among these, from the viewpoints of foam performance and detergency, aminoacetic acid betaine-type amphoteric surfactants such as lauryl dimethyl aminoacetic acid betaine, coconut oil alkyl betaine, myristyl dimethyl aminoacetic acid betaine, sodium stearyl dimethyl betaine, coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, and stearyl dihydroxyethyl betaine are preferred, with coconut oil fatty acid amidopropyl betaine and lauric acid amidopropyl betaine being particularly preferred.

[0053] Examples of anionic surfactants include sodium lauryl sulfate, sodium cetyl sulfate, sodium polyoxyethylene (hereinafter referred to as "POE") lauryl ether sulfate, ammonium POE lauryl ether sulfate, sodium lauroylmethyl-β-alanine, hydrogenated sodium coconut oil fatty acid glyceryl sulfate, sulfate ester salts of higher fatty acid alkylolamides, sulfated castor oil, lauryl phosphate, POE oleyl ether phosphate, tetradecene sulfonate, sulfonate salts of higher fatty acid esters, sodium coconut oil fatty acid methyl taurate, triethanolamine dodecylbenzenesulfonate, sodium sulfosuccinate, sodium lauroyl sarcosine, sodium N-lauroyl-L-glutamate, sodium N-lauroyl-L-aspartate, triethanolamine N-coconut oil fatty acid acyl-L-glutamate, and sodium POE lauryl ether acetate. Among these, from the viewpoints of foam performance and detergency, sodium lauryl sulfate, sodium cetyl sulfate, sodium POE lauryl ether sulfate, sodium lauroylmethyl-β-alanine, sodium coconut oil fatty acid methyl taurate, sodium N-lauroyl-L-glutamate, and N-coconut oil fatty acid acyl-L-glutamate triethanolamine are preferred, and sodium N-lauroyl-L-aspartate, sodium lauroylmethyl-β-alanine, and N-coconut oil fatty acid acyl-L-glutamate triethanolamine are particularly preferred.

[0054] Examples of cationic surfactants include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, behenyltrimethylammonium methylsulfate, tri(polyoxyethylene)stearylammonium chloride, Quaternium-91 (INCI name), behenyltrimethylammonium chloride, distearyldimethylammonium chloride, lanolin fatty acid amide propylethyldimethylammonium ethyl sulfate, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, and N,N-di(acyloxy)-N-(hydroxyethyl)-N-methylammonium methosulfate.

[0055] Examples of nonionic surfactants include POE alkyl ethers, POE alkyl phenyl ethers, POE-polyoxypropylene alkyl ethers, POE sorbitan fatty acid esters, POE propylene glycol fatty acid esters, aliphatic alkanolamides such as coconut oil fatty acid monoethanolamide, POE alkyl glucosides, and polyoxyalkylene alkyl diethers.

[0056] The content of the surfactant relative to the total amount of the first composition is not particularly limited, and is, for example, 1% by weight to 30% by weight, for example, 2% by weight to 25% by weight, for example, 3% by weight to 20% by weight, or for example, 4% by weight to 18% by weight. By setting the content of the surfactant within the above range, the feel during rinsing and the feel after finishing can be improved.

[0057] The content of the surfactant relative to the total amount of the second composition is not particularly limited, but is, for example, 0.01 wt % or more and 10 wt % or less, or, for example, 0.03 wt % or more and 7 wt % or less, or, for example, 0.05 wt % or more and 5 wt % or less, or, for example, 0.1 wt % or more and 3 wt % or less.

[0058] [pH adjuster] A pH adjuster (excluding the organic acids described above) may be included to adjust the pH of the first composition and the second composition. Examples of pH adjusters include phosphoric acid, hydrochloric acid, sulfuric acid, nitric acid, and salts thereof.

[0059] [Chelating agent] Examples of chelating agents include ethylenediaminetetraacetic acid (EDTA, edetic acid), hydroxyethylethylenediaminetriacetic acid (HEDTA) and its salts, diethylenetriaminepentaacetic acid and its salts, and hydroxyethanediphosphonic acid (HEDP, etidronic acid) and its salts.

[0060] Furthermore, the first composition and the second composition may contain, as necessary, at least one selected from preservatives such as parabens, methylparaben, sodium benzoate, etc.; organic solvents such as ethanol, etc.; sugars such as monosaccharides such as glucose and galactose, disaccharides such as maltose, sucrose, fructose, trehalose, etc., sugar alcohols, etc.; stabilizers such as phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, and tannic acid, animal and plant extracts, herbal extracts, vitamins, flavorings, propellants, thickeners, and ultraviolet absorbers, as well as those listed in the "Standards for Quasi-drug Raw Materials" (published in June 2006 by Yakuji Nipposha).

[0061] [Dosage form] The dosage forms of the first composition and the second composition can be selected from various known dosage forms. Examples of dosage forms include liquid, emulsion, cream, gel, paste, spray mist, aerosol foam, etc. Among these, it is preferable that the first composition is liquid, cream, or gel, and the second composition is emulsion.

[0062] [Method of using the hair treatment composition] As described above, in the present hair treatment composition, the first composition is applied to hair, the first composition adhering to the hair is rinsed off, and then the second composition is applied to the hair. The first composition can be used to cleanse hair, for example, as a cleanser composition that is dispensed in liquid form and foamed for use. Examples of the first composition include shampoo, rinse, conditioner, and treatment. The first composition may be applied to wet or dry hair. The first composition is preferably applied to wet hair. The method for applying the first composition to hair is not particularly limited, and examples include application with a hand comb, application with a spray, and application with a comb or brush. After application to hair according to a conventional method, the first composition is rinsed off with water, hot water, or the like. The first composition can be used as a normal shampoo, treatment, etc., but can also be used as a shampoo, treatment, etc. immediately after hair dyeing with a hair dye composition containing an oxidative dye, or after a certain time has passed since hair dyeing with the hair dye composition. By applying the first composition to hair treated with the hair dye composition, it is possible to replenish the dye in the dyed hair, thereby maintaining the color of the hair and providing a color change that suits the user's preference.

[0063] The second composition can be used as a leave-in hair cosmetic composition. A "leave-in" hair cosmetic composition is a so-called leave-in type hair cosmetic composition that is applied without being washed off. Examples of leave-in hair cosmetic compositions include leave-in treatments and hair styling products such as hair foam, hair wax, hair gel, hair cream, hair spray, hair mist, hair water, hair liquid, and hair oil. The second composition may be applied to wet or dry hair. The second composition is preferably applied to wet hair. The second composition is typically applied to hair by hand combing. Applying the second composition to hair after applying the first composition prevents the dye from leaking directly from the hair, thereby preventing hair fading. The second composition does not have to be a leave-in type hair cosmetic composition. That is, the second composition may be washed off after being applied to hair. [Example]

[0064] Next, the present invention will be described in more detail with reference to examples and comparative examples, although the present invention is not limited to the examples described below.

[0065] (Preparation of the first composition, second composition, and control composition) The first and second hair treatment compositions, as well as a control composition, were each prepared by mixing the components shown in Tables 1 to 3. The control composition is a composition in which a polymer compound and an organic acid are further mixed with the components of the first composition 1 in Table 1. The numerical value in the column showing each component in each table indicates the content of that component in the composition, expressed in % by weight.

[0066] [Table 1]

[0067] [Table 2]

[0068] [Table 3]

[0069] <Evaluation of formulation stability of the first composition, the second composition, and the control composition> The formulation stability of First Compositions 1 to 10 was evaluated using the following evaluation method. 30 grams of each First Composition was weighed into a No. 4 standard bottle, and the bottle was sealed with an inner lid and a lid. The bottle was then left to stand at 50°C for one month. Ten expert panelists visually evaluated and judged the state of separation of the First Composition. Each expert panelist scored the composition on a 5-point scale, with no separation being excellent (5 points), almost no separation being good (4 points), some separation being fair (3 points), some separation being slightly poor (2 points), and significant separation being poor (1 point). The average of the scores from each expert panelist was calculated, and the evaluation results were determined as follows: an average of 4.6 points or more was designated "excellent (5)," 3.6 points or more but less than 4.6 points was designated "good (4)," 2.6 points or more but less than 3.6 points was designated "fair (3)," 1.6 points or more but less than 2.6 points was designated "slightly poor (2)," and less than 1.6 points was designated "poor (1)." The formulation stability of the second compositions 1 to 17 and the control composition was also evaluated in the same manner. The results are shown in the "Formulation stability" column of Tables 1 to 3.

[0070] (Creating dyed hair bundles for evaluation) A 10 cm long white hair bundle sample for evaluation (manufactured by Bealux) (hereinafter simply referred to as hair bundle) was washed with water, towel-dried, and 1 g of the sample was applied with a 0.3-fold amount of the first composition 1 to 10 (based on the weight of the hair bundle) as described in each Example (Tables 4 and 5) by massaging for 2 minutes, followed by rinsing with water for 1 minute. The hair bundle was then dried with warm air, and a 0.3-fold amount of the second composition 1 to 17 (based on the weight of the hair bundle) as described in each Example was applied with a 30-second massaging to 1 g of the hair bundle to prepare a dyed hair bundle. For Comparative Example 1, a 0.3-fold amount of the control composition was applied with a 2-minute massaging to 1 g of the hair bundle, followed by rinsing with water for 1 minute, which was then used as the dyed hair bundle.

[0071] <Evaluation of hair dyeing power> Ten expert panelists visually observed the color development of each dyed hair strand under a standard light source and evaluated it according to the following criteria to determine whether the color development was good or not. Each expert panelist scored the results on a five-point scale: very good (5 points), good (4 points), good (3 points), slightly light (2 points), and very light (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 results are shown in the "Dyeing Power" column of Tables 4 and 5.

[0072] <Evaluation of texture> Ten expert panelists compared the feel of each dyed hair bundle with that of an untreated white hair bundle and judged whether the feel was good or not using the following criteria. The feel was scored on a five-point scale: excellent (5 points) for excellent, good (4 points) for good, fair (3 points) for somewhat good, fair (2 points) for somewhat poor, and poor (1 point) for poor. 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 results are shown in the "Feel" column of Tables 4 and 5.

[0073] <Evaluation of bleaching suppression> After washing each dyed hair strand 10 times with shampoo (Bigen Treatment Shampoo, manufactured by Hoyu Co., Ltd.), 10 expert panelists visually evaluated the fading prevention effect (color retention) under a standard light source. Each expert panelist scored the results on a 5-point scale: excellent fading prevention effect (5 points), excellent fading prevention effect (4 points), good fading prevention effect (3 points), poor fading prevention effect (2 points), and very poor fading prevention effect (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 results are shown in the "fading inhibition" column of Tables 4 and 5.

[0074] [Table 4]

[0075] [Table 5]

[0076] As shown in Tables 4 and 5, Examples 1 to 26 achieved good results in all evaluation items. Here, as shown in Table 3, the control composition used in Comparative Example 1 was a composition containing both component (A) (direct dye) of the first composition and component (B) (polymer compound) and component (C) (organic acid) of the second composition. Specifically, the control composition was a composition in which the polymer compound and organic acid of second composition 1 were further added to first composition 1. That is, the dyed hair tress of Comparative Example 1 was identical to the dyed hair tress of Example 1 (hair tress to which first composition 1 and second composition 1 were applied in this order) in terms of the applied major components and their contents. However, while Example 1 showed excellent results in all evaluation items, Comparative Example 1 showed poor results in terms of feel, fading prevention, and formulation stability. Thus, Example 1 and Comparative Example 1 achieved different results despite the application of the same major components to the hair tress. These results demonstrate that it is important to apply the first composition and the second composition to the hair at different times, and that this provides effects such as inhibiting fading.

[0077] Comparing the examples, the second composition 4 used in Example 4 contains xanthan gum, an anionic polymer compound. In contrast, the second compositions 1 to 3 used in Examples 1 to 3 contain nonionic polymer compounds (hydroxyethyl cellulose, hydroxypropyl cellulose) or cationic polymer compounds (polyquaternium-10). The hair surface is easily negatively charged. Therefore, compared with the second composition 4 containing an anionic polymer compound with a negatively charged moiety, the second compositions 1 to 3 containing nonionic polymer compounds without a charged moiety or cationic polymer compounds with a positively charged moiety exhibited stronger binding strength to hair and were able to form a suitable film on the hair surface, presumably resulting in superior anti-fading effects. These results demonstrate that the polymer compound contained in the second composition is preferably cationic or nonionic.

[0078] Furthermore, the second composition 7 used in Example 7 had a higher pH than the second compositions used in the other Examples. Therefore, it was thought that the hair swollen by dyeing with the first composition was not sufficiently astringent, making it difficult to obtain an excellent effect of inhibiting fading. From these results, it was found that the pH of the second composition is preferably somewhat low (for example, in the acidic range).

[0079] Furthermore, the second compositions 8 and 9 used in Examples 8 and 9 contained a lower amount of polymeric compound than the second compositions used in the other Examples. This is thought to have made it difficult to form a sufficient film on the hair surface, making it difficult to obtain an excellent fading prevention effect. These results demonstrate that the polymeric compound contributes to the fading prevention effect. On the other hand, the second compositions 12 to 14 used in Examples 12 to 14 each contained a higher amount of polymeric compound than the second compositions used in the other Examples. This is thought to have resulted in a deterioration in the feel of the hair, such as smoothness when running fingers through it, after applying the second composition to the hair.

[0080] Furthermore, Examples 15 to 17 differ from Example 1 in the content of organic acid in the second composition. In Example 15, since the second composition does not contain an organic acid, it is thought that the acid did not promote the astringency of the hair bundle, and slight fading occurred. In Example 16, since the content of organic acid is lower than in Example 1, it is thought that the astringency effect of the hair bundle is lower than in Example 1, and the evaluation of the fading inhibition is slightly lower. Furthermore, Example 17 has a higher content of organic acid than Example 1, and as a result, a sufficient fading inhibition effect is obtained.

[0081] Furthermore, in Examples 21 to 23, the hair-dyeing power of the first compositions was slightly inferior compared to the other Examples. First, the first composition 5 used in Example 21 contained an acid dye as a direct dye. This is thought to have made it difficult for the dye to ionically bond to negatively charged hair, resulting in insufficient hair dyeing. Furthermore, the first composition 6 used in Example 22 had a relatively high pH. This is thought to have caused the hair to swell easily during dyeing, resulting in insufficient dyeing. Furthermore, the first composition 7 used in Example 23 had a lower content of direct dye than the other first compositions, resulting in inferior hair-dyeing power.

[0082] Furthermore, as shown in Tables 1 and 2, the formulation stability of the first compositions 9 and 10 and the second composition 17 was slightly inferior to the others. This is thought to be because the first compositions 9 and 10 contained a large amount of direct dyes, and the second composition 17 contained a large amount of organic acids.

[0083] Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and variations of the specific examples exemplified above. The technical elements described in this specification or drawings exhibit technical utility either alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Furthermore, the technology exemplified in this specification or drawings can achieve multiple objectives simultaneously, and achieving one of these objectives is itself technically useful.

Claims

1. a first hair cosmetic composition containing a direct dye; a second hair cosmetic composition to be applied to the hair after applying the first hair cosmetic composition to the hair, the second hair cosmetic composition containing a polymer compound; and A hair treatment composition comprising:

2. The hair treatment composition according to claim 1 , wherein the polymer compound comprises at least one of a cationic polymer compound and a nonionic polymer compound.

3. The hair treatment composition according to claim 1 , wherein the direct dye comprises a basic dye.

4. 2. The hair treatment composition according to claim 1, wherein the content of the direct dye relative to the total amount of the first hair cosmetic composition is 1% by weight or less.

5. The hair treatment composition according to claim 1 , wherein the second hair cosmetic composition further comprises an organic acid.

6. 6. The hair treatment composition according to claim 5, wherein the content of the organic acid relative to the total amount of the second hair cosmetic composition is 0.05% by weight or more and 1.5% by weight or less.

7. The hair treatment composition according to claim 1 , wherein the hair treatment composition is applied to the hair after a hair dye composition has been applied.

8. The hair treatment composition according to claim 7 , wherein the hair dye composition contains an oxidation dye.

9. The hair treatment composition according to any one of claims 1 to 8, wherein the first hair cosmetic composition is a hair wash composition for washing the hair.

10. A method for using a hair treatment composition, comprising: a first step of applying to hair a first hair cosmetic composition containing a direct dye; a second step of rinsing off the first hair cosmetic composition attached to the hair; a third step of applying a second hair cosmetic composition containing a polymer compound to the hair after the second step; and A method of use comprising:

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