WO2012137877A1 - Oxidative hair dye or bleaching agent composition - Google Patents

Abstract

An oxidative hair dye composition or a bleaching agent composition is used by mixing a first agent containing an alkaline agent with a second agent containing hydrogen peroxide. A mixture contains a guanidinium salt in an amount exceeding 0.5 mass% and an aromatic alcohol that is liquid at ordinary temperature in an amount exceeding 2.0 mass%, and if the content of the guanidinium salt is regarded as mass% a, and the content of the aromatic alcohol that is liquid at ordinary temperature is regarded as mass% b, (a - 0.5) * (b - 2.0) ≥ 1.0 is satisfied, and the pH of the mixture is 8.0 to 11.5.

Description

Oxidative hair dye or bleaching composition

The present invention relates to an oxidized hair dye or a decoloring composition.

For decolorizing or dyeing hair, an oxidized hair dye or decolorant that decolorizes or dyes hair by an oxidation reaction in the presence of an alkaline agent contained in the first agent and an oxidizing agent contained in the second agent. Compositions are widely used.

However, such an oxidized hair dye or depigmenting composition is liable to cause hair damage. As a result, voids are formed inside the hair, resulting in dullness due to diffused reflection of light, resulting in a loss of gloss. Have a problem. Therefore, techniques such as those using specific organic solvents (Patent Documents 1 and 2) have been proposed as oxidation hair dyes that suppress hair damage. However, these oxidation hair dye and decoloring agent compositions were unable to repair the damage once generated and obtain a good glossy finish.

Conventionally, guanidinium salts are known to be used as alkaline agents in oxidation hair dyes or depigmenting agents, but hair damage caused by the combined use of specific organic solvents and guanidinium salts in a specific concentration range. There is no known repair effect or glossing effect.

On the other hand, Patent Documents 3 and 4 use a low molecular compound having an amino group, a hydroxyl group, a carbonyl group or a carboxyl group in the molecule as an active ingredient for imparting a three-dimensional feeling, transparency or depth to the hair. And guanidine derivatives and aromatic alcohols are also mentioned as such active ingredients. However, in the examples of these documents, no example using a guanidinium salt is described, and naturally, a prescription using a guanidinium salt in combination with a specific organic solvent is not described. Further, the specific dosage forms described in these examples are only the first and second agents of shampoo, rinse, and permanent agent, and the hair is decolorized with an oxidized hair dye or depigmenting composition. There is no description or suggestion that a hair damage repair effect can be obtained while dyeing.

Japanese Patent Laid-Open No. 11-029443 JP 2002-193770 A Japanese Patent Laid-Open No. 2001-220321 Japanese Patent Laid-Open No. 2001-220322

The present invention is a hair dye composition or a decoloring agent composition used by mixing a first agent containing an alkali agent and a second agent containing hydrogen peroxide, and the mixture exceeds 0.5% by mass. When the amount of guanidinium salt and the amount of aromatic alcohol which is liquid at room temperature exceeding 2.0% by mass are contained, the content of guanidinium salt is a mass% and the content of aromatic alcohol which is liquid at normal temperature is b mass%. (A-0.5) * (b-2.0) ≧ 1.0 is satisfied, and an oxidized hair dye or decoloring composition having a pH of the mixture of 8.0 to 11.5 is provided.

Although the present invention is an oxidation-type hair dye or decoloring composition that normally causes hair damage, it has already been damaged by another oxidation-type hair dye or decoloring composition. The ability to repair hair cavities and obtain a glossy finish like normal hair, and also the ability to lighten hair color, which is the basic performance as an oxidized hair dye or depigmenting composition The present invention relates to an excellent oxidation hair dye or decoloring composition.

The inventors of the present invention use a combination of an guanidinium salt in an amount exceeding a specific concentration and an aromatic alcohol in an oxidation hair dye or a decoloring agent composition, and the content thereof satisfies a certain condition. The present inventors have found that the above problems can be solved at once.

In the present specification, regarding the content of each component, “in the mixture” means “in the mixture of the first agent and the second agent” in the case of the two-agent type, and “first to second” in the case of the three-component type. “In a mixture consisting of three agents”.

[Guanidinium salt]
Examples of the guanidinium salt used in the present invention include guanidine hydrochloride, guanidine sulfate, guanidine nitrate, guanidine carbonate, guanidine bicarbonate, guanidine phosphate, guanidine thiocyanate, guanidine borate, guanidine sulfamate, and guanidine organic acid salt. Of these, guanidine carbonate and guanidine bicarbonate are preferred. These guanidinium salts can be used alone or in combination of two or more. The guanidinium salt is preferably blended with the first agent, and from the viewpoint of good gloss finish, the guanidinium salt should be contained in an amount exceeding 0.5% by mass, preferably 1 to 10% by mass, more preferably 2%. Contains 8% by mass.

[Aromatic alcohol]
Examples of aromatic alcohols that are liquid at room temperature used in the present invention (hereinafter simply referred to as “aromatic alcohols”) include benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2 -Benzyloxyethanol and the like are mentioned, and among them, benzyl alcohol and 2-benzyloxyethanol are preferable. In the present application, “normal temperature” means 25 ° C. These aromatic alcohols can be contained in any agent, but can also be used as a separate agent from the first to third agents. An aromatic alcohol can be used individually or in combination of 2 or more types. The aromatic alcohol is contained in the mixture in an amount exceeding 2.0% by mass, preferably from 2.5 to 20.0% by mass, and more preferably from 3.0 to 10.0% by mass, from the viewpoint of good gloss finish.

The oxidation type hair dye or decoloring composition of the present invention has a glossy finish with good dyeing when the content of guanidinium salt is a mass% and the content of aromatic alcohol which is liquid at room temperature is b mass%. Therefore, it is necessary to satisfy (a−0.5) * (b−2.0) ≧ 1.0, (a−0.5) * (b−2.0) ≧ 2.0, and further (a−0.5) * (b−2.0 ) ≧ 2.5, further (a−0.5) * (b−2.0) ≧ 3.0, further (a−0.5) * (b−2.0) ≧ 3.5, further (a−0.5) * (b−2.0) ≧ It is preferable to satisfy 4.0. Further, from the viewpoint of good hair dyeing properties, 40 ≧ (a−0.5) * (b−2.0), further 35 ≧ (a−0.5) * (b−2.0), and further 30 ≧ (a−0.5). * It is preferable to satisfy (b-2.0).

[Oxidative dye]
When the composition of the present invention is a hair dye composition, it contains an oxidation dye. As the oxidation dye, known precursors and couplers usually used for hair dyes can be used. Examples of the precursor include paraphenylenediamine, toluene-2,5-diamine, 2-chloro-paraphenylenediamine, N-methoxyethyl-paraphenylenediamine, N, N-bis (2-hydroxyethyl) -paraphenylenediamine, 2- (2-hydroxyethyl) -paraphenylenediamine, 2,6-dimethyl-paraphenylenediamine, 4,4'-diaminodiphenylamine, 1,3-bis (N- (2-hydroxyethyl) -N- (4 -Aminophenyl) amino) -2-propanol, PEG-3,3,2'-paraphenylenediamine, paraaminophenol, paramethylaminophenol, 3-methyl-4-aminophenol, 2-aminomethyl-4-aminophenol , 2- (2-hydroxyethylaminomethyl) -4-aminophenol, orthoaminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-acetami Phenol, 3,4-diaminobenzoic acid, 5-aminosalicylic acid, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine, 4,5-diamino-1- (4 '-Chlorobenzyl) pyrazole, 4,5-diamino-1-hydroxyethylpyrazole and salts thereof.

Examples of couplers include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4- (2-hydroxyethylamino) anisole, 2,4-diamino-5-methylphenetole, and 2,4-diamino. -5- (2-hydroxyethoxy) toluene, 2,4-dimethoxy-1,3-diaminobenzene, 2,6-bis (2-hydroxyethylamino) toluene, 2,4-diamino-5-fluorotoluene, 1 , 3-Bis (2,4-diaminophenoxy) propane, metaaminophenol, 2-methyl-5-aminophenol, 2-methyl-5- (2-hydroxyethylamino) phenol, 2, 4-dichloro-3- Aminophenol, 2-chloro-3-amino-6-methylphenol, 2-methyl-4-chloro-5-aminophenol, N-cyclopentyl-metaaminophenol, 2-methyl-4-methoxy-5- (2- Hydroxyethylamino) phenol, 2-methyl-4-fluoro-5- Aminophenol, resorcin, 2-methylresorcin, 4-chlororesorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5-methylphenol, 4 -Hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxybenzomorpholine, 3,4-methylenedioxyphenol, 2-bromo-4,5-methylenedioxyphenol, 3,4 -Methylenedioxyaniline, 1- (2-hydroxyethyl) amino-3,4-methylenedioxybenzene, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dimethoxy-3,5-diaminopyridine 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine Luo salts and the like.

Two or more precursors and couplers may be used in combination, and the content thereof is preferably 0.01 to 5.0% by mass, more preferably 0.1 to 4.0% by mass in the mixture.

[Other dyes]
In the hair dye composition of the present invention, a direct dye can be used in combination as a dye other than the oxidation dye. Examples of direct dyes include nitro dyes, disperse dyes, basic dyes, and acid dyes. Nitro dyes include 2-nitro-paraphenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-parahydroxyethylaminophenol, 4-nitro-orthophenylenediamine, 4-amino-3- Nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC Blue No.2, HC Orange No.1, HC Red No.1, HC Yellow No.2, HC Yellow No.4, HC Yellow No.5, HC Red No. 3, N, N-bis- (2-hydroxyethyl) -2-nitro-paraphenylenediamine, etc., and disperse dyes include Disperse Violet 1, Disperse Blue 1, Disperse Black 9 As basic dyes, basic blue 99, basic brown 16, basic brown 17, basic red 76, basic red 51, basic yellow 57, basic yellow 87, Basic Orange 31, etc. Examples of acid dyes include Daigo No. 205 and Red No. 106.

¡Direct dyes may be used in combination of two or more. The content thereof is preferably 0.001 to 5.0% by mass, more preferably 0.01 to 3.0% by mass in the mixture.

[Alkaline agent]
The hair dye or depigmenting agent composition of the present invention contains an alkaline agent in the first agent. Alkaline agents include ammonia and salts thereof, sodium hydroxide, potassium hydroxide, monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol and other alkanolamines and salts thereof, 1,3- Examples include alkanediamines such as propanediamine and salts thereof, and carbonates such as sodium carbonate, potassium carbonate, sodium bicarbonate, and potassium bicarbonate.

Two or more alkali agents may be used in combination, and the content in the mixture is preferably 0.05 to 15.0% by mass from the viewpoint of sufficient hair dyeing effect and reduction of hair damage and scalp irritation. Is preferably 0.1 to 10.0% by mass, more preferably 0.2 to 5.0% by mass. In addition, the content of the alkali agent here does not include the above-described guanidinium salt.

〔hydrogen peroxide〕
The hair dye or decoloring composition of the present invention contains hydrogen peroxide in the second agent. The content of hydrogen peroxide in the mixture is preferably from 0.1 to 12.0% by mass, more preferably from 0.5 to 9.0% by mass, and further from 1.0 to 6.0 from the viewpoint of sufficient hair coloring effect and reduction of hair damage and scalp irritation. Mass% is preferred.

[Surfactant]
In the hair dye or decoloring agent composition of the present invention, any one or more agents may contain a surfactant. As the surfactant, any of an anionic surfactant, a nonionic surfactant, a cationic surfactant, and an amphoteric surfactant can be used.

Examples of the anionic surfactant include sulfate anionic surfactants such as alkyl sulfates and alkyl ether sulfates; N-acyl amino acid salts, N-acyl-N-alkyl amino acid salts, amide type N-acyl amino acid salts Carboxylic acid anionic surfactants such as ether carboxylate, fatty acid salt, alkyl succinate or alkenyl succinate; sulfosuccinate type, isethionate type, taurine salt type, alkylbenzene sulfonate type, α- Examples thereof include sulfonic acid type anionic surfactants such as olefin sulfonate type and alkane sulfonic acid type; and phosphate ester type anionic surfactants such as alkyl phosphate and alkyl ether phosphate. Of these, carboxylic acid and sulfuric acid ester are preferable, and carboxylic acid is particularly preferable. Among the carboxylic acid-based anionic surfactants, N-acyl amino acid salts and ether carboxylates are preferable, and among them, acyl groups having 10 to 18, preferably 10 to 16, and more preferably 10 to 14 N— Acyl glutamate, alkyl group having 10 to 18 carbon atoms, preferably 10 to 16, more preferably 10 to 14 and an average addition mole number of oxyethylene group of 3 to 15, preferably 3 to 12, more preferably 4 to 10 Of these, polyoxyethylene alkylcarboxylates are preferred.

Examples of the nonionic surfactant include alkyl polyglucoside, polyoxyalkylene alkyl ether, alkyl glyceryl ether and the like. As the alkyl polyglucoside, those in which the alkyl group has 8 to 18 carbon atoms, more preferably 8 to 14 carbon atoms, and further 9 to 11 carbon atoms are preferable, and those in which the alkyl group is linear are preferable. The average degree of polymerization of glucoside is preferably 1 to 5, more preferably 1 to 2. As the polyoxyalkylene alkyl ether, those in which the alkyl group has 10 to 22 carbon atoms, more preferably 12 to 18 carbon atoms are preferable, and those in which the alkyl group is linear are preferable. Polyoxyethylene alkyl ethers are more preferable, and those having an average addition mole number of oxyethylene groups of 1 to 50, more preferably 2 to 40 are preferable. As the alkyl glyceryl ether, those in which the alkyl group has 8 to 18 carbon atoms, more preferably 8 to 12 carbon atoms, are preferred, and those in which the alkyl group is branched are preferred.

As the cationic surfactant, mono long chain alkyl quaternary ammonium salts and di long chain alkyl quaternary ammonium salts are preferable. Specifically, cetrimonium chloride, steartrimonium chloride, behentrimonium chloride, stearalkonium chloride. Benzalkonium chloride, stearoxypropyltrimonium chloride, dialkyl (C12-18) dimonium chloride and the like, steartrimonium chloride, behentrimonium chloride, stearoxypropyltrimonium chloride, dialkyl (C12-18) Dimonium chloride is more preferred. Examples of commercially available cationic surfactants include Coatamine 86W, 86P Conch, 60W, E-80K, D2345P (above, manufactured by Kao Corporation) and Nikkor CA-2580 (manufactured by Nippon Surfactant Kogyo Co., Ltd.).

Amphoteric surfactants include carbobetaines, amidebetaines, sulfobetaines, hydroxysulfobetaines, amidesulfobetaines, phosphobetaines, imidazo having 8 to 24 carbon atoms, alkyl groups, alkenyl groups or acyl groups. Examples thereof include linium-based surfactants, and among them, carbobetaine-based surfactants and sulfobetaine-based surfactants are preferable. Preferred amphoteric surfactants include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryldimethylaminoacetic acid betaine, lauryl hydroxysulfobetaine and the like.

Two or more surfactants can be used in combination, and the content in the mixture is preferably 2.0 to 8.0% by weight, more preferably 2.5 to 7.0% by weight, and even more preferably 3.0 to 6.0% from the viewpoint of the stability of the mixture. Mass% is preferred.

[Higher alcohol]
The oxidized hair dye or depigmenting agent composition of the present invention includes a higher alcohol having 12 or more carbon atoms in any one or more of the first agent, the second agent, and the third agent from the viewpoint of improvement in feel and stability. It is preferable to contain. These have the effect of forming a structure with a surfactant to prevent separation and improving the feel during rinsing.

As the higher alcohol, those having 12 to 30 carbon atoms, more preferably 16 to 22 carbon atoms are preferable. Specifically, myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, isostearyl alcohol, 2-octyldodecanol Oleyl alcohol and the like, and mixtures thereof.

Two or more higher alcohols may be used in combination, and the content thereof is preferably 3.0 to 11.0% by weight, more preferably 4.0 to 9.0% by weight, from the viewpoint of the viscosity and stability of the mixture.

[Polyhydric alcohol]
The hair dye or depigmenting agent composition of the present invention preferably further contains a polyhydric alcohol. Polyhydric alcohols having 2 to 20 carbon atoms, specifically, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,2-butylene glycol, 1, Alkylene glycols such as 3-butylene glycol, pentylene glycol, hexylene glycol; glycerins such as glycerin, diglycerin, polyglycerin; sugar alcohols such as xylit, mannitol, galactit, sorbit; other trimethylolethane, triglyceride Examples include methylolpropane and pentaerythritol.

Polyhydric alcohols may be used in combination of two or more. The content in the mixture is preferably 0.1 to 20.0% by mass, more preferably 0.5 to 15.0% by mass, and even more preferably 1.0 to 10.0% by mass from the viewpoint of imparting moisture to the hair and being excellent in the effect of suppressing the crispness of the hair. Is preferred.

[Medium]
In the composition of the present invention, water and, if necessary, an organic solvent are used as a medium. As the organic solvent, in addition to the above-mentioned aromatic alcohol, lower alkanols such as ethanol and 2-propanol, polyols such as propylene glycol, 1,3-butanediol, diethylene glycol and glycerin, ethyl cellosolve, butyl cellosolve, benzyl cellosolve, etc. And carbitols such as ethyl carbitol and butyl carbitol.

[Dosage form, etc.]
The composition of the present invention is a two-component type consisting of a first agent containing an alkaline agent and a second agent containing hydrogen peroxide, as well as the currently used oxidative hair dye or decoloring agent, or In order to improve the decoloring power, as a third agent type further comprising a powdery oxidant composed of a granulated product such as persulfate (ammonium persulfate, potassium persulfate, sodium persulfate, etc.) as a third agent, It is provided as a combination of another agent in a two-part or three-part type. The dosage form of the first agent and the second agent can be, for example, liquid, emulsion, cream, gel, paste, foam, etc. In the case of foam, either aerosol form or non-aerosol form It can also be.

[PH]
The pH (25 ° C.) of the composition of the present invention is preferably 8.0 to 12.0 for the first agent and 2.0 to 5.0 for the second agent. The total composition when mixed is the point of decolorization / hair dyeing effect and skin irritation. From 8.0 to 11.5, more preferably from 9.0 to 11.0. As a pH adjuster, in addition to the above alkaline agents, inorganic acids such as hydrochloric acid and phosphoric acid, organic acids such as citric acid, glycolic acid and lactic acid, hydrochlorides such as monoethanolamine hydrochloride, monopotassium dihydrogen phosphate, Examples thereof include phosphates such as disodium monohydrogen phosphate.

[Other optional ingredients]
In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the composition of the present invention. Such optional components include hydrocarbons, animal and vegetable oils and fats, higher fatty acids, natural or synthetic polymers, silicones, ethers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, and stabilizing agents. Agents, antioxidants, plant extracts, herbal extracts, vitamins, fragrances, UV absorbers.

[Treatment method]
In order to dye or decolorize hair using the composition of the present invention, for example, the first agent and the second agent (or the third agent in the case of the three-component type) of the composition of the present invention are mixed immediately before use. Then, it may be applied to the hair, left for a predetermined time, rinsed and dried. The application temperature to the hair is preferably 15 to 45 ° C., the application time is 3 to 60 minutes, more preferably 5 to 45 minutes, and further preferably 10 to 30 minutes.

The embodiments of the present invention described above are summarized below.

<1> A hair dye composition or a decoloring agent composition used by mixing a first agent containing an alkali agent and a second agent containing hydrogen peroxide, and the amount exceeding 0.5% by mass in the mixture When the content of the guanidinium salt and the aromatic alcohol that is liquid at room temperature in an amount exceeding 2.0% by mass is a mass%, and the content of the aromatic alcohol that is liquid at room temperature is b mass%, (A-0.5) * (b-2.0) An oxidized hair dye or a decoloring agent composition that satisfies 1.0 and 1.0 and the pH of the mixture is 8.0 to 11.5.

<2> The guanidinium salt is selected from guanidine hydrochloride, guanidine sulfate, guanidine nitrate, guanidine carbonate, guanidine bicarbonate, guanidine phosphate, guanidine thiocyanate, guanidine borate, guanidine sulfamate, and guanidine organic acid salt. <1> The oxidation type hair dye or decoloring composition according to the above.

<3> The oxidized hair dye or decoloring composition according to <1> or <2>, wherein the content of the guanidinium salt in the mixture is 1 to 10% by mass, more preferably 2 to 8% by mass. .

<4> The aromatic alcohol which is liquid at room temperature is selected from benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol and 2-benzyloxyethanol, <1 The oxidation hair dye or decoloring agent composition according to any one of> to <3>.

<5> The oxidized form according to any one of <1> to <4>, wherein the content of the aromatic alcohol that is liquid at room temperature in the mixture is 2.5 to 20.0% by mass, more preferably 3.0 to 10.0% by mass. Hair dye or decolorant composition.

<6> The oxidized hair dye or decoloring composition according to any one of <1> to <5>, further comprising a surfactant in the mixture.

<7> The oxidized form according to <6>, wherein the surfactant is at least one selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, and an amphoteric surfactant. Hair dye or decolorant composition.

<8> The content of the surfactant in the mixture is 2.0 to 8.0% by mass, more preferably 2.5 to 7.0% by mass, and still more preferably 3.0 to 6.0% by mass, according to <6> or <7> Oxidative hair dye or bleaching composition.

<9> The oxidized hair dye or decolorizer composition according to any one of <1> to <8>, further comprising a higher alcohol having 12 or more carbon atoms in the mixture.

<10> The higher alcohol having 12 or more carbon atoms is at least one selected from the group consisting of myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, isostearyl alcohol, 2-octyldodecanol and oleyl alcohol. The oxidation type hair dye or decoloring agent composition according to <9>.

<11> The oxidized hair dye according to <9> or <10>, wherein the content of the higher alcohol having 12 or more carbon atoms in the mixture is 3.0 to 11.0% by mass, more preferably 4.0 to 9.0% by mass. Or a decoloring agent composition.

<12> The oxidized hair dye or decoloring composition according to any one of <1> to <11>, further comprising a polyhydric alcohol in the mixture.

<13> The oxidized hair dye according to <12>, wherein the content of the polyhydric alcohol in the mixture is 0.1 to 20.0% by mass, more preferably 0.5 to 15.0% by mass, and still more preferably 1.0 to 10.0% by mass. Agent or decoloring agent composition.

<14> (a−0.5) * (b−2.0) ≧ 2.0, more preferably (a−0.5) * (b−2.0) ≧ 2.5, more preferably (a−0.5) * (b−2.0) ≧ 3.0 More preferably, (a−0.5) * (b−2.0) ≧ 3.5, more preferably (a−0.5) * (b−2.0) ≧ 4.0, any of <1> to <13> The oxidation type hair dye or decoloring agent composition according to claim 1.

<15> 40 ≧ (a−0.5) * (b−2.0), more preferably 35 ≧ (a−0.5) * (b−2.0), more preferably 30 ≧ (a−0.5) * (b−2.0) The oxidized hair dye or decoloring composition according to any one of <1> to <14>, wherein

<16> The oxidized hair dye or decolorizer composition according to any one of <1> to <15>, wherein the pH of the mixture is 9.0 to 11.0.

<17> The first and second agents of the oxidized hair dye or decoloring agent composition according to any one of <1> to <16> are mixed immediately before use, and then applied to hair, 15 to 45 A hair dyeing or decoloring method in which the mixture is allowed to stand at 3 ° C. for 3 to 60 minutes, more preferably 5 to 45 minutes, still more preferably 10 to 30 minutes, followed by washing and drying.

Examples 1 to 14 and Comparative Examples 1 to 6
(Preparation of hair for evaluation)
The following steps 1 and 2 were repeated twice for Chinese white hair, and then bleached again, and then dried with a dryer for 15 minutes to produce damaged hair. The hair in which the inside of the hair was hollowed out over the entire length from the damaged hair was visually selected and used as an evaluation hair.

1. 1. Bleach treatment with bleach solution (Table 1) at 30 ° C for 20 minutes The following daily hair care behavior model cycle was performed for 15 cycles.

Model cycle of daily hair care behavior: Immerse hair in water at 40 ° C for 1 minute, then dry with a dryer for 15 minutes (warm air)

(Evaluation of cavity repair effect)
After the treatment, after confirming the cavities inside the hair for evaluation, 40 hairs for evaluation were immersed in 11 g of a treatment agent having the formulation shown in Tables 2 to 4, and allowed to stand at 30 ° C. for 60 minutes. After rinsing with warm water at 40 ° C. for 15 seconds and natural drying, the cavity at the same site was observed again. The cavity inside the hair before and after the treatment was compared, and the cavity repair rate was calculated by the following formula.
Repair rate = (xy) / x x 100
x: number of hairs having cavities before agent treatment y: number of hairs having cavities after agent treatment

(Processing agent)
The following 1st agent (Table 2) and 2nd agent (Table 3) were mixed by mass ratio of 1: 1, and it was set as the processing agent.

Examples 15 to 16, Comparative Example 7
3g of the bleach solution shown in Table 1 was applied to Japanese tress with about 2.8g of hair, left still at 30 ° C for 30 minutes, rinsed with warm water at 40 ° C for 15 seconds, washed with shampoo for 15 seconds and rinsed for 15 seconds. The conditioner was conditioned for 15 seconds, then rinsed for 15 seconds and dried in a dryer. What performed these processing 10 times was made into the stress for evaluation.

The tress for evaluation was immersed in 28 g of a treatment agent in which the first agent shown in Table 5 and the second agent shown in Table 6 were mixed at a mass ratio of 1: 1, and allowed to stand at 30 ° C. for 20 minutes. The tress was rinsed with warm water at 40 ° C. for 15 seconds, the conditioner was conditioned for about 3 g for 15 seconds, rinsed with warm water at 40 ° C. for 15 seconds, and then dried.

Gloss evaluation: A visual evaluation was conducted by three professional panelists who have been engaged in hair color development for more than five years. The evaluation was a paired comparative evaluation of Comparative Example 7 and Example 15, and Comparative Example 7 and Example 16, and was evaluated according to the following criteria. The results are shown in Table 7.
The example is more shiny: 2
The example is slightly shiny: 1
Example and comparative example are equivalent: 0
The comparative example is slightly shiny: -1
The comparative example is glossier: -2

Claims (15)

1. A hair dye composition or a depigmenting agent composition used by mixing a first agent containing an alkali agent and a second agent containing hydrogen peroxide, the guanidinium salt in an amount exceeding 0.5% by mass in the mixture And an aromatic alcohol that is liquid at room temperature in an amount exceeding 2.0 mass%, the content of the guanidinium salt is a mass%, and the content of the aromatic alcohol that is liquid at room temperature is b mass% (a- 0.5) Oxidative hair dye or decolorant composition that satisfies (b-2.0) ≧ 1.0 and the pH of the mixture is 8.0 to 11.5.
2. The guanidinium salt is selected from guanidine hydrochloride, guanidine sulfate, guanidine nitrate, guanidine carbonate, guanidine bicarbonate, guanidine phosphate, guanidine thiocyanate, guanidine borate, guanidine sulfamate, and organic acid salts of guanidine. The oxidation type hair dye or decoloring agent composition described.
3. The oxidized hair dye or decoloring composition according to claim 1 or 2, wherein the content of the guanidinium salt in the mixture is 1 to 10% by mass.
4. The oxidized hair dye or decoloring composition according to claim 1 or 2, wherein the content of the guanidinium salt in the mixture is 2 to 8% by mass.
5. The aromatic alcohol which is liquid at room temperature is selected from benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol and 2-benzyloxyethanol. The oxidation type hair dye or decoloring agent composition according to any one of the above.
6. The oxidized hair dye or decoloring composition according to any one of claims 1 to 5, wherein the content of the aromatic alcohol that is liquid at room temperature in the mixture is 2.5 to 20.0 mass%.
7. 6. The oxidized hair dye or decoloring composition according to claim 1, wherein the content of the aromatic alcohol that is liquid at room temperature in the mixture is 3.0 to 10.0% by mass.
8. The oxidized hair dye or decoloring composition according to any one of claims 1 to 7, further comprising a surfactant in the mixture.
9. The oxidized hair dye according to claim 8, wherein the surfactant is at least one selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, and an amphoteric surfactant. Or a decoloring agent composition.
10. 10. The oxidized hair dye or decoloring composition according to claim 8 or 9, wherein the surfactant content in the mixture is 2.0 to 8.0% by mass.
11. 11. The oxidized hair dye or decolorizer composition according to claim 1, further comprising 3.0 to 11.0% by mass of a higher alcohol having 12 or more carbon atoms in the mixture.
12. The oxidized hair dye or decolorizer composition according to any one of claims 1 to 11, further comprising a polyhydric alcohol in the mixture.
13. 13. The oxidation type hair dye or decoloring composition according to claim 12, wherein the content of the polyhydric alcohol in the mixture is 0.1 to 20.0 mass%.
14. 14. The oxidized hair dye or decoloring composition according to claim 1, wherein (a-0.5) * (b-2.0) ≧ 3.5.
15. 15. The oxidized hair dye or decoloring composition according to claim 1, wherein (a-0.5) * (b-2.0) ≧ 4.0.