WO2016104062A1

WO2016104062A1 - Oxidative hair dye composition

Info

Publication number: WO2016104062A1
Application number: PCT/JP2015/083646
Authority: WO
Inventors: 小林　陽介
Original assignee: ホーユー株式会社
Priority date: 2014-12-25
Filing date: 2015-11-30
Publication date: 2016-06-30
Also published as: KR20170098863A; CN106999375A; JP6778984B2; TWI721958B; CN106999375B; KR102453228B1; TW201637645A; JP2016121116A; SG11201704407RA

Abstract

The present invention is an oxidative hair dye composition containing an alkaline agent and an oxidant, which contains (A) a carbonate, (B) an oxidative dye and (C) at least one sugar alcohol selected from the group consisting of sugar alcohols having 4 or more carbon atoms. The sugar alcohol (C) may be alditol. The oxidative dye (B) may contain at least one coupler that is selected from among 2, 4-diaminophenoxyethanol, 5-amino-o-cresol, 2, 6-diaminopyridine, 5-(2-hydroxyethylamino)-2-methylphenol, α-naphthol and salts of these compounds.

Description

Oxidative hair dye composition

The present invention relates to an oxidative hair dye composition containing carbonate as an alkaline agent.

Generally, hair dye compositions that exhibit an effect by mixing a plurality of drugs are known. As such a hair dye composition, for example, an oxidative hair dye composition comprising a first agent containing an alkali agent and an oxidative dye and a second agent containing an oxidant such as hydrogen peroxide. It has been known. The alkaline agent promotes the action of the oxidizing agent contained in the second agent and improves hair dyeing power by swelling the hair and improving the permeability of the dye into the hair. Conventionally, ammonia or the like is known as an alkaline agent used in an oxidative hair dye composition. However, ammonia has a problem that it causes an irritating odor when the blending amount is increased.

Conventionally, for example, oxidative hair dye compositions disclosed in Patent Documents 1 to 3 below are known. Patent Documents 1 to 3 use ammonia and carbonate in combination as alkali agents to reduce the blending amount of ammonia as compared with the prior art and improve hair dyeing power.

JP 2001-206825 A JP 2001-328926 A JP 2008-127343 A

However, the oxidative hair dye compositions disclosed in Patent Documents 1 to 3 have a problem that the color, that is, the saturation and the color strength may be reduced by the carbonate compounded as an alkaline agent. . On the other hand, when the blending amount of carbonate is simply reduced and the blending amount of ammonia is increased, there is a problem that irritation cannot be reduced.

Then, the objective of this invention is providing the oxidation hair dye composition which can improve a color tone, maintaining the low irritation in the oxidation hair dye composition containing carbonate as an alkali agent. is there.

The present invention has found that, in combination with a specific sugar alcohol in an oxidative hair dye composition containing a carbonate as an alkali agent, the color can be improved while maintaining low irritation. Is based.

In order to achieve the above object, according to one aspect of the present invention, there is provided an oxidative hair dye composition containing an alkali agent and an oxidant, wherein (A) a carbonate, (B) an oxidative dye, and (C) It contains at least one selected from the group of sugar alcohols having 4 or more carbon atoms. The (C) sugar alcohol may be alditol. The (B) oxidation dye includes 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) -2-methylphenol, α-naphthol, and It may contain at least one coupler selected from those salts.

The (B) oxidation dye may contain at least one coupler selected from 2,4-diaminophenoxyethanol hydrochloride, 5-amino-o-cresol, and salts thereof. 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) based on the total content of (B) the oxidative dye in the oxidative hair dye composition ) The mass ratio of the total content of at least one coupler selected from 2-methylphenol, α-naphthol, and salts thereof may be 0.01 to 0.9.

According to the present invention, it is possible to improve the color while maintaining low irritation.

Hereinafter, an embodiment in which the present invention is embodied in a two-component oxidative hair dye composition will be described.
The two-component oxidative hair dye composition is composed of, for example, a first agent containing at least (A) carbonate and (B) an oxidative dye, and a second agent containing at least an oxidant. This oxidative hair dye composition is used for hair dyeing treatment after a mixture in which the first agent and the second agent are mixed is prepared.

<First Agent>
The first agent contains, for example, (C) a sugar alcohol in addition to the alkali agent and the dye. (A) Carbonate is mix | blended from a viewpoint of a brightness improvement. (A) The carbonate is not particularly limited, and is a known carbonate such as sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, lithium carbonate, calcium carbonate, magnesium carbonate, barium carbonate, guanidine carbonate, hydrogen carbonate. Guanidine, ammonium carbonate, and ammonium bicarbonate can be used. Among these carbonates, only 1 type may be contained independently and 2 or more types may be combined and contained.

The lower limit of the content of (A) carbonate in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and further preferably. Is 0.5% by mass or more. (A) When the content of carbonate is 0.01% by mass or more, the brightness can be particularly improved. Moreover, when using ammonia together as an alkaline agent, the reduction effect of the irritation | stimulation derived from ammonia can also be anticipated by reduction of the usage-amount of ammonia.

The upper limit of the content of (A) carbonate in the mixture of the first agent and the second agent is appropriately set, but is preferably 20% by mass or less, more preferably 15% by mass or less, and further preferably 10% by mass. It is as follows. (A) When content of carbonate is 20 mass% or less, especially when using a solubilizer, the solubility with respect to a solubilizer can be improved.

As the alkali agent, (A) an alkali agent other than carbonate may be used in combination. (A) Examples of alkaline agents other than carbonates include ammonia, alkanolamines, silicates, metasilicates, sulfates, chlorides, phosphates, organic amines, and basic amino acids. Specific examples of the alkanolamine include monoethanolamine and triethanolamine. Specific examples of the silicate include sodium silicate and potassium silicate. Specific examples of the metasilicate include sodium metasilicate and potassium metasilicate. Specific examples of the sulfate include ammonium sulfate. Specific examples of the chloride include ammonium chloride, for example. Specific examples of the phosphate include, for example, primary ammonium phosphate and secondary ammonium phosphate. Specific examples of the organic amine 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. Among these alkaline agents, only one kind may be contained alone, or two or more kinds may be contained in combination. Among these, ammonia and ammonium salts are preferably used from the viewpoint of improving hair dyeing power.

Moreover, the mass ratio of the content of the carbonate (A) to the content of the total alkali agent in the mixture of the first agent and the second agent is not particularly limited, but the effect of reducing the irritation when using the carbonate is included. From the standpoint of display, it is preferably 0.4 or more, more preferably 0.5 or more, and still more preferably 0.6 or more. That is, the ratio of the content of the alkaline agent other than (A) carbonate in the total alkaline agent is preferably 60% by mass or less, more preferably 50% by mass or less, and further preferably 40% by mass or less. The lower limit of the content of the alkali agent other than (A) carbonate is not particularly limited, but is preferably 5% by mass or more, more preferably 10% by mass or more from the viewpoint of improving the brightness.

The alkali agent is preferably blended in such an amount that the pH of the mixture of the first agent and the second agent, that is, the oxidative hair dye composition at the time of use is in the range of 7 to 12. By setting the pH of the mixture to 7 or more, the action of the oxidizing agent contained in the second agent can be further promoted. By setting the pH of the mixture to 12 or less, hair damage can be further suppressed.

(B) Oxidative dyes are compounds that can develop color due to oxidative polymerization by an oxidant contained in the second agent, and are classified as dye intermediates and couplers. The oxidation dyes are preferably dye intermediates and couplers. Contains.

Examples of the dye intermediate include p-phenylenediamine, toluene-2,5-diamine (paratolylenediamine), 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, and salts thereof. Among the specific examples of these dye intermediates, only one kind may be contained alone, or two or more kinds may be contained in combination.

Couplers develop color when combined with dye intermediates. Examples of couplers include resorcin, 5-amino-o-cresol, m-aminophenol, α-naphthol, 5- (2-hydroxyethylamino) -2-methylphenol, m-phenylenediamine, and 2,4-diaminophenoxyethanol. , Toluene-3,4-diamine, 2,6-diaminopyridine, diphenylamine, N, N-diethyl-m-aminophenol, phenylmethylpyrazolone, 1,5-dihydroxynaphthalene, and salts thereof. Further, 2,4-diaminophenoxyethanol includes, for example, 2,4-diaminophenoxyethanol hydrochloride. Among specific examples of these couplers, only one kind may be contained alone, or two or more kinds may be contained in combination. (B) Since the oxidative dye can change the color tone of hair in various ways, it is preferable that at least one selected from the specific examples of the dye intermediate and at least one selected from the specific examples of the coupler. It consists of a kind. The first agent may appropriately contain, as a dye other than the above-mentioned oxidation dye, for example, an oxidation dye listed in “Quasi-drug raw material standard” (issued in June 2006, Yakuji Nippo).

The lower limit of the content of the (B) oxidation dye in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and further preferably. Is 0.5% by mass or more. (B) When content of oxidation dye is 0.01 mass% or more,
In particular, the color can be further improved.

The upper limit of the content of the (B) oxidation dye in the mixture of the first agent and the second agent is appropriately set, but is preferably 10% by mass or less, more preferably 7% by mass or less, and further preferably 5% by mass. It is as follows. (B) When content of an oxidation dye is 10 mass% or less, when using a solubilizer especially, the solubility with respect to a solubilizer can be improved.

Among the specific examples of the couplers described above, 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) -2 is used from the viewpoint of improving the color. —At least one coupler selected from methylphenol and α-naphthol (hereinafter referred to as “coupler P”) is preferred. Further, at least one selected from 2,4-diaminophenoxyethanol hydrochloride, 5-amino-o-cresol, and salts thereof is more preferable from the viewpoint of obtaining a vivid color tone.

The lower limit of the content of the coupler P in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.01% by mass or more. When the content of the coupler P is 0.01% by mass or more, the color tone can be particularly improved.

The upper limit of the content of coupler P in the mixture of the first agent and the second agent is appropriately set, but is preferably 10% by mass or less, more preferably 7% by mass or less, and further preferably 5% by mass or less. . When the content of the coupler P is 10% by mass or less, particularly when a solubilizer is used, the solubility in the solubilizer can be improved.

(B) When coupler P is used as the oxidation dye, the lower limit of the mass ratio of the total content of coupler P to the total content of (B) oxidation dye in the mixture of the first agent and the second agent is appropriately set. However, it is preferably 0.01 or more, more preferably 0.1 or more. When the mass ratio is 0.01 or more, the color tone can be particularly improved.

The upper limit of the mass ratio of the total content of the coupler P to the total content of the (B) oxidation dye in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.9 or less, more preferably Is 0.8 or less. When the mass ratio is 0.9 or less, the color can be particularly improved.

(C) Sugar alcohol is blended in order to improve the color after the hair dyeing treatment. (C) As the sugar alcohol, a sugar alcohol having 4 or more carbon atoms, preferably 4 to 8 carbon atoms is used. When the number of carbon atoms is 4 or more, the color can be particularly improved. Specific examples of (C) sugar alcohols include sugar derivatives, cyclitol, and maltitol produced by reduction of carbonyl groups of aldose and ketose. Specific examples of the sugar derivative (alditol) produced by reducing the carbonyl group of aldose include, for example, erythritol (C4), threitol (C4), xylitol (C5), arabinitol (C5), sorbitol (C6), And mannitol (C6), galactitol (C6), boremitol (C7), and D-erythro-D-galacto-octitol (C8). Symbols C4 to C8 in parentheses represent the number of carbon atoms. Among these (C) sugar alcohols, only 1 type may be contained independently and 2 or more types may be combined and contained. Among these, alditol is preferable and xylitol is more preferable from the viewpoint of excellent color improvement effect.

The lower limit of the content of the (C) sugar alcohol in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and still more preferably. Is 0.5% by mass or more. (C) When the content of the sugar alcohol is 0.01% by mass or more, the color tone can be particularly improved.

The upper limit of the content of the (C) sugar alcohol in the mixture of the first agent and the second agent is appropriately set, but is preferably 10% by mass or less, more preferably 7% by mass or less, and further preferably 5% by mass. It is as follows. (C) When content of sugar alcohol is 10 mass% or less, especially when using a solubilizer, the solubility with respect to a solubilizer can be improved.

If necessary, the first agent is a component other than those described above, for example, a solubilizer, a water-soluble polymer compound, an oil component, a polyhydric alcohol other than the above, a surfactant, a sugar other than the above, a preservative, You may further contain a stabilizer, pH adjusters other than the above, a plant extract, a herbal extract, a vitamin, a fragrance | flavor, antioxidant, a ultraviolet absorber, a chelating agent, and an oxidation aid.

The solubilizer is blended to make the first agent liquid. Examples of solubilizers used include water and organic solvents. Specific examples of the organic solvent include ethanol, n-propanol, isopropanol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamon alcohol, anise alcohol, Examples include p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, phenoxyethanol, phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate, and alkyl ether. Among these solubilizers, only one kind may be contained alone, or two or more kinds may be contained in combination. Among these, water is preferably used because of its excellent ability to dissolve other components in the first agent. When water is used as the solvent, the water content (content during use) in the mixture of the first agent and the second agent is preferably 50% by mass or more, more preferably 60% by mass or more. .

Water-soluble polymer compound gives moderate viscosity to the mixture. Specific examples of the water-soluble polymer compound include natural polymers, semi-synthetic polymers, synthetic polymers, and inorganic polymers. Examples of natural water-soluble polymer compounds include guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, tragacanth gum, pectin, mannan, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, and casein. , Albumin, and collagen.

Examples of semi-synthetic water-soluble polymer compounds include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylcellulose dimethyldiallylammonium chloride, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, cationized cellulose, cationized guar gum, starch Examples include phosphate esters, propylene glycol alginates, and alginates.

Examples of the synthetic water-soluble polymer compound include polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl methyl ether, carboxyvinyl polymer, sodium polyacrylate, polyacrylamide, polyethylene oxide, ethylene oxide / propylene oxide block copolymer, acrylic acid / acrylic. Examples include acid alkyl copolymers and polydimethylmethylene piperidinium chloride. The synthetic polymer is, for example, a half ester of itaconic acid and polyoxyethylene alkyl ether, or an ester of methacrylic acid and polyoxyethylene alkyl ether, at least selected from acrylic acid, methacrylic acid, and alkyl esters thereof. And a copolymer comprising one monomer. Among these water-soluble polymer compounds, only one kind may be contained alone, or two or more kinds may be contained in combination.

Oily component gives moisture to the hair. Therefore, a 1st agent contains an oil-based component in the range which does not inhibit the effect of this invention. Examples of the oil component include fats and oils, waxes, higher alcohols, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, esters, and silicones.

Examples of fats and oils include lanolin, olive oil, camellia oil, shea fat, 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. Examples of the wax include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin. Examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, aralkyl alcohol, behenyl alcohol, 2-octyldodecanol, lauryl alcohol, myristyl alcohol, decyltetra Examples include decanol and lanolin alcohol.

Examples of the hydrocarbon include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, and petrolatum. Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid. Examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, ceralkyl alcohol, and isostearyl glyceryl ether.

Examples of esters include diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl stearate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethylhexyl palmitate, Octyldodecyl ricinoleate, fatty acid cholesteryl / lanosteryl having 10 to 30 carbon atoms, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, cetyl caprate, tricapryl Examples include glyceryl acid, diisostearyl malate, dioctyl succinate, and cetyl 2-ethylhexanoate.

Examples of the silicone 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, and fluorine-modified silicone. Among these oily components, only one kind may be contained alone, or two or more kinds may be contained in combination.

Examples of the polyhydric alcohol include glycol and glycerin. Examples of the glycol 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. Among these polyhydric alcohols, only one kind may be contained alone, or two or more kinds may be contained in combination.

The surfactant emulsifies or solubilizes the oxidative hair dye composition as an emulsifier or a component that solubilizes each component, and adjusts the viscosity or improves the viscosity stability. Examples of the surfactant include an anionic surfactant, a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant.

Examples of the anionic surfactant include alkyl ether sulfate, alkyl sulfate, alkyl ether sulfate ester, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, Examples include alkyl or alkenyl ether carboxylates, α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphate mono- or diester type surfactants, sulfosuccinate esters, and derivatives thereof. Examples of the counter ion of the anionic group of these surfactants include sodium ion, potassium ion, and triethanolamine. More specifically, examples of the alkyl ether sulfate ester salt include polyoxyethylene (hereinafter referred to as “POE”) sodium lauryl ether sulfate. Examples of the alkyl sulfate include sodium lauryl sulfate and sodium cetyl sulfate. Examples of the alkyl sulfate derivatives include sodium POE lauryl sulfate. Examples of the sulfosuccinic acid ester include disodium lauryl sulfosuccinate.

Examples of the cationic surfactant include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, ethyl lanolin sulfate. Examples include fatty acid aminopropylethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, methacryloyloxyethyltrimethylammonium chloride, and behenyltrimethylammonium methylsulfate.

Specific examples of amphoteric surfactants include coco betaine, lauramido propyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidopropyl betaine, and lauryl betaine (lauryldimethylaminoacetic acid betaine). Can be mentioned.

Specific examples of nonionic surfactants include ether type nonionic surfactants, ester type nonionic surfactants, and alkyl glucosides. Specific examples of the ether type nonionic surfactant include POE cetyl ether (cetes), POE stearyl ether (steares), POE behenyl ether, POE oleyl ether (oles), POE lauryl ether (laureth), and POE octyldodecyl. Examples include ether, POE hexyl decyl ether, POE isostearyl ether, POE nonyl phenyl ether, and POE octyl phenyl ether.

Specific examples of the ester type nonionic surfactant include, for example, POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerol monostearate, Monomyristic acid POE glycerin, Tetraoleic acid POE sorbit, Hexostearic acid POE sorbit, Monolauric acid POE sorbit, POE sorbit beeswax, Monooleic acid polyethylene glycol, Monostearic acid polyethylene glycol, Monolauric acid polyethylene glycol, Lipophilic monooleic acid Glycerol, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, ses Sorbitan oleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, and decaglyceryl monomyristate Examples include glyceryl.

Examples of the alkyl glucoside include alkyl (carbon number 8 to 16) glucoside, POE methyl glucoside, and POE dioleic acid methyl glucoside. Among the specific examples of these surfactants, only one kind may be contained alone, or two or more kinds may be contained in combination.

Examples of the sugar include monosaccharides such as glucose and galactose, and disaccharides such as maltose, sucrose, fructose, and trehalose. Examples of the preservative include parabens. Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, and tannic acid. Examples of the pH adjuster include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucuronic acid, benzoic acid and the like. Examples of the antioxidant include ascorbic acid and sulfite. Examples of chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and salts thereof, ethylenediaminehydroxyethyltriacetic acid and salts thereof, and hydroxyethanediphosphonic acid. (HEDP) and its salts.

The dosage form of the first agent is not particularly limited, and specific examples include liquid, gel, foam, cream, and solid. Examples of the liquid include aqueous solutions, dispersions, and emulsions.

<Second agent>
A 2nd agent can also mix | blend a solubilizer other than an oxidizing agent. An oxidizing agent improves the decoloring property of the melanin contained in hair more. Specific examples of the oxidizing agent include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, sodium persulfate, Sodium oxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adduct, phosphate hydrogen peroxide adduct, and pyrophosphate hydrogen peroxide Examples include adducts. Among the specific examples of these oxidizing agents, only one kind may be contained alone, or two or more kinds may be contained in combination. The content of the oxidizing agent in the second agent is appropriately set, but is preferably 0.1% by mass or more, more preferably 2.0% by mass or more, and most preferably 3.0% by mass or more. It is. When content of an oxidizing agent is 0.1 mass% or more, the decoloring property of melanin can be improved more. Further, the content of the oxidizing agent in the second agent is preferably 15.0% by mass or less, more preferably 9.0% by mass or less, and most preferably 6.0% by mass or less. When content of an oxidizing agent is 15.0 mass% or less, damage to hair etc. can be suppressed more.

When hydrogen peroxide is added to the second agent as an oxidizing agent, the second agent is preferably a stabilizer such as ethylene glycol phenyl ether (phenoxyethanol), hydroxyethane, in order to improve the stability of hydrogen peroxide. Contains diphosphonic acid and its salts. Examples of the hydroxyethane diphosphonate include tetrasodium hydroxyethane diphosphonate and disodium hydroxyethane diphosphonate. A 2nd agent may contain each component generally contained in an oxidative hair dye composition, and does not inhibit the effect | action of each component mentioned above. For example, you may contain suitably the component contained in the 1st agent mentioned above in the range which does not inhibit the effect of this invention.

The dosage form of the second agent is not particularly limited, and specific examples include, for example, liquid, gel, foam, cream, and solid. Examples of the liquid include aqueous solutions, dispersions, and emulsions. When the oxidative hair dye composition is used, a mixture is prepared by mixing the first agent and the second agent. The required amount of the mixture is then applied to the hair, attached to a comb or brush.

The oxidative hair dye composition according to this embodiment has the following advantages.
(1) In the present embodiment, (A) in the oxidative hair dye composition containing carbonate, (C) at least one selected from the group of sugar alcohols having 4 or more carbon atoms is used in combination. Therefore, it is possible to improve the color while maintaining low irritation and lightness.

(2) Preferably, (B) 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) -2-methylphenol, α At least one coupler selected from naphthol and their salts is used. Therefore, the color can be further improved.

The above embodiment may be modified as follows.
In the above-described embodiment, as a dye other than the above-described oxidation dye, for example, a direct dye listed in “Quasi-drug raw material standard” (issued in June 2006, Yakuji Nippo) may be appropriately contained.

In the above-described embodiment, the oxidative hair dye composition is composed of (A) a carbonate and (B) a first agent that contains an oxidative dye, a second agent that contains an oxidant, and the like. It was comprised as an agent composition. However, the oxidative hair dye composition is not limited to the two-agent type, and a part of the components contained in the first agent and the second agent is configured as a separate agent, and is a multi-agent type, for example, a three-component type or more It may be configured.

In the above embodiment, (C) sugar alcohol was added to the first agent. However, (C) sugar alcohol may be blended in either the first agent or the second agent.

Next, the embodiment will be described more specifically with reference to examples and comparative examples. In addition, this invention is not limited to the structure as described in the Example column.
The first agent and the second agent of the oxidative hair dye composition containing each component shown in Tables 1A to 1D and Table 2 were prepared. The numerical values in the columns indicating the respective components in Tables 1A to 1D and 2 indicate the contents of the components in the corresponding column, and the unit is mass%. And the 1st agent and the 2nd agent were mixed by mass ratio of 1: 1, and the oxidative hair dye composition was prepared. The resulting oxidative hair dye composition was applied to a black human hair bundle (manufactured by Beaulux Co., Ltd.) (hereinafter simply referred to as a hair bundle) using a brush, and then at room temperature (25 ° C.) for 30 minutes. I left it alone. Next, after washing the oxidative hair dye composition adhering to the hair bundle with water, shampooing the hair bundle (Bigu treatment shampoo made by Hoyu Co., Ltd.) twice and rinsing (Vigen treatment rinse made by Hoyu Co., Ltd.). Applied once. Subsequently, the hair bundle was dried with warm air and then left for one day. About the hair | bristle bundle to which the hair dyeing process was performed, the brightness and the color taste were evaluated in accordance with the method shown below. Moreover, in order to evaluate irritation | stimulation according to the method shown below about the hair | bristle bundle at the time of hair dyeing | treating using the oxidative hair dye composition of each Example and a comparative example, irritation | stimulation odor was evaluated.

The notation of (A) to (C) in the “component” column in the table corresponds to each component ((A): carbonate, (B): oxidation dye, (C): sugar alcohol) described in the claims of this application. Compounds are shown. On the other hand, the notation of “c” in the “component” column in the table indicates a comparative compound of each component described in the claims of this application.

The coupler P in the table is 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) -2-methylphenol, or α-naphthol. Indicates. The coupler Q in the table indicates a coupler other than the coupler P.

<Irritating odor>
Twenty panelists specializing in odor evaluation sensoryly evaluated the hair bundles at the time of hair dyeing treatment using the oxidative hair dye composition of each example. Based on the number of panelists who hardly felt the smell of ammonia, the irritating odor during use was evaluated. Out of 20 panelists, if the number of panelists who hardly feel the odor is 17 or more, “Excellent: 5”, 13 to 16 “Good: 4”, 9 to 12 “ Acceptable: 3 ”, 5-8 or less cases were“ slightly bad: 2 ”, and 4 people or less were“ defective: 1 ”. The results are shown in Tables 1A-1D.

<Lightness>
The brightness of human hair bundles after 10 panelists treated with an oxidative hair dye composition were visually observed under a standard light source, and were excellent (5 points), good (4 points), good (3 points), Scoring was done in 5 stages: slightly bad (2 points) and bad (1 point). An average value is calculated for each paneler's scoring results, and an average value of 4.6 or higher is “excellent: 5”, 3.6 or higher and lower than 4.6 is “good: 4”, 2.6 or higher 3 The evaluation result was determined as “possible: 3” for less than 6 points, “slightly defective: 2” for 1.6 points or more and less than 2.6 points, and “failure: 1” for 1 point or more and less than 1.6 points. The results are shown in Tables 1A-1D.

<Color>
The color tone was comprehensively evaluated for saturation and color strength. The color of human hair bundles after 10 panelists treated with an oxidative hair dye composition were visually observed under a standard light source, and were excellent (5 points), good (4 points), and possible (3 points). Scoring was done in 5 stages: slightly bad (2 points) and bad (1 point). An average value is calculated for each paneler's scoring results, and an average value of 4.6 or higher is “excellent: 5”, 3.6 or higher and lower than 4.6 is “good: 4”, 2.6 or higher 3 The evaluation result was determined as “possible: 3” for less than 6 points, “slightly defective: 2” for 1.6 points or more and less than 2.6 points, and “failure: 1” for 1 point or more and less than 1.6 points. The results are shown in Tables 1A-1D.

As shown in Tables 1A to 1D, in the oxidative hair dye composition according to each example, it was found that the evaluation of irritation, lightness, and color was high for each comparative example. From the results of Examples 1 to 4, there was no difference in effect due to the difference in carbon number and isomer of sugar alcohol. Mannitol is an isomer of sorbitol.

As shown in Table 1D, it was found that (C) Comparative Example 1 containing no sugar alcohol had a low evaluation of color for each Example. (A) In the comparative example 2 which does not contain carbonate, it turned out that evaluation of irritation | stimulation and a brightness is low with respect to each Example. Comparative Example 3 containing 1,2-pentanediol as a polyhydric alcohol instead of (C) sugar alcohol in Example 1, Comparative Example 4 containing glucose as a monosaccharide, and Comparison containing glycerin having 3 carbon atoms In Example 5, it turned out that evaluation of a color is low with respect to each Example, respectively.

In addition, when the 1st agent of the said comparative example 1 and the 2nd agent which mix | blended 1 mass% of xylitol as sugar alcohol in the structure of the 2nd agent of Example 1 were applied in combination, each same as Example 1 Evaluation results were obtained.

It should be noted that an oxidative hair dye composition containing ammonia as an alkaline agent in a proportion of 5 to 60% by mass based on the total alkaline agent may be prepared. In this case, the brightness after the hair dyeing process can be further improved.

Claims

An oxidative hair dye composition comprising an alkali agent and an oxidant, comprising at least one selected from the group consisting of (A) a carbonate, (B) an oxidative dye, and (C) a sugar alcohol having 4 or more carbon atoms An oxidative hair dye composition comprising:
The oxidative hair dye composition according to claim 1, wherein the sugar alcohol (C) is alditol.
The (B) oxidation dye includes 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) -2-methylphenol, α-naphthol, and The oxidative hair dye composition according to claim 1 or 2, comprising at least one coupler selected from salts thereof.
The oxidation dye according to claim 1 or 2, wherein the (B) oxidation dye comprises at least one coupler selected from 2,4-diaminophenoxyethanol hydrochloride, 5-amino-o-cresol, and salts thereof. Hair dye composition.
2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5- (2-hydroxyethylamino) based on the total content of (B) the oxidative dye in the oxidative hair dye composition 5. The mass ratio of the total content of at least one coupler selected from 2-methylphenol, α-naphthol, and salts thereof is 0.01 to 0.9. Oxidative hair dye composition.