JP5674262B2 - Hair dye composition - Google Patents

Description

  The present invention relates to a hair dye composition and a color fading prevention method that cause less color fading associated with shampooing.

  Oxidative hair dyes are the most widely used among permanent hair dyes, and hair dye oxidative dye intermediates (precursors and couplers) penetrate into hair and undergo oxidative polymerization to form pigments. Are chemically stained. Some kind of oxidant is essential, and this oxidant also has another function of oxidatively degrading melanin pigment in hair to lighten hair color and further enhance the coloring effect of pigment produced by oxidative polymerization. . In addition, hair dyes that use a direct dye and an oxidizing agent in combination with the dyeing power of the direct dye and the decoloring power are also known.

  However, this oxidizing agent damages the hair and makes it difficult to retain the polymerized oxidative dye or direct dye in or on the hair, resulting in a problem that the fastness to washing is reduced.

  In order to improve the hair-fastness in hair dyes using such oxidizing agents, many techniques have been proposed to protect the dyes that are produced with silicone polymers or cationic polymers. I couldn't.

  Patent Document 1 discloses that astaxanthin has an antioxidant action, an action to prevent oxidative tissue damage in a living body, and an anti-inflammatory action, and compositions such as pharmaceuticals containing these. However, the literature does not suggest anything about the fastness to washing when used as a hair dye.

JP-A-2-49091

  The present invention provides a hair dye composition with less color loss associated with shampooing after hair dyeing without reducing dyeing performance and decolorization performance, and a method of dyeing hair using the hair dye, and An object is to provide a method for preventing discoloration from dyed hair.

  The present inventors have found that astaxanthin has an action of suppressing discoloration of dyed hair.

The present invention provides a hair dye composition containing the following components (A) to (C).
(A) Astaxanthin or its derivative
(B) Oxidizing agent
(C) Alkaline agent

  In addition, the present invention provides a hair dyeing method in which the hair dye composition is applied to hair and left to wash for 1 to 60 minutes.

  Furthermore, the present invention provides a method for preventing color fading of hair by applying a composition containing component (A) astaxanthin or a derivative thereof to hair during or before or after hair dyeing.

  According to the present invention, it is possible to carry out hair dyeing with little color fading accompanying shampooing after hair dyeing, and it is possible to perform a process for preventing the color fading.

  The hair dye composition of the present invention is a two-component type comprising a first agent containing an alkaline agent and a second agent containing an oxidizing agent, or further from a granulated product such as persulfate as a third agent. It takes the form of a three-part type formed by combining powdered oxidants. Further, in addition to the two- and three-component forms described above, an essence agent further containing a conditioning component or the like may be mixed. In that case, the form in which the essence agent is combined in the two-part type is also called the two-part type, and the form in which the essence agent is combined in the three-part type is also called the three-part type. Or after applying the pretreatment agent containing a conditioning component etc., the form which applies the mixture of the above-mentioned 2 agent type and 3 agent type without washing off shall also be called 2 agent type and 3 agent type. Hereinafter, the “total composition” in the present invention refers to the whole composition immediately before use in which the first agent and the second agent are mixed in the case of the two-agent type, and in the case of the three-agent type, the first agent, The whole composition immediately before use in which the second agent and the third agent are mixed, or the whole composition in which an essence agent and a pretreatment agent are further mixed with these compositions.

[(A): Astaxanthin or its derivative]
Component (A) astaxanthin or a derivative thereof is a kind of carotenoid and is a xanthophyll having a hydroxyl group. Ingredient (A) is widely distributed in nature, and is found in the shells of crustaceans, the surface of red sea bream feeding on them, and the red part of the muscles of salmonids. In vivo, 3,3'-dihydroxy-β, β-carotene-4,4'-dione (free form) with the structure shown in the following chemical formula (1) can exist in monoester and diester forms And many are fatty acid ester types. Moreover, it often takes the state of various chromoproteins by binding to plasma lipoproteins or binding to proteins. Astaxanthin has three isomers (3R, 3'R), (3R, 3'S), and (3S, 3'S) due to the steric relationship between the 3 and 3 'hydroxyl groups in terms of chemical structure. There are also cis- and trans-isomers of the central conjugated bond. In the present invention, any chemical structure or state may be used, and among these, a free type, a monoester type, and a diester type are preferable.

  The method for obtaining the component (A) is not limited, and for example, it can be obtained as a synthetic product or an extract from natural products such as crustaceans, fish, and microorganisms. Examples of the microorganism include green algae belonging to Haematococcus species such as Haematococcus prubiaris, Hematococcus lacustris, Hematococcus capensis, Hematococcus droebacensis, Hematococcus zimbabiensis and the like. Commercially available products include ASTOTS-S, -2.50, -50, and -10O (manufactured by Takeda Paper), Asteryl Oil 50F, 5F (manufactured by Fuji Chemical Industry Co., Ltd.), BioAstin SCE7, etc. (Toyoen) Chemical Co., Ltd.).

  The content of the component (A) is preferably 0.0001 to 1% by mass, more preferably 0.0006 to 0.8% by mass, and still more preferably 0.001 to 0.5% by mass in the total composition from the viewpoint of the fading suppression effect.

[(B): Oxidizing agent]
The oxidizing agent of component (B) is contained in the second agent. Examples of the oxidizing agent include hydrogen peroxide and hydrogen peroxide generators such as urea peroxide, melamine peroxide, sodium perborate, potassium perborate, sodium percarbonate, and potassium percarbonate. Hydrogen oxide is preferred.

  Two or more oxidizing agents may be used in combination, and the content of the oxidizing agent in terms of the amount of hydrogen peroxide in terms of hydrogen peroxide conversion from the viewpoint of sufficient decolorization / hair dyeing effect and reduction of hair damage and scalp irritation 0.1-10 mass% is preferable and 1-5 mass% is more preferable.

[(C): Alkaline agent]
The alkali agent of component (C) is contained in the first agent. Examples of the alkali agent include ammonia and its salts (for example, ammonium carbonate and ammonium hydrogen carbonate), ethanolamine and its salts (for example, monoethanolamine, diethanolamine and the like), isopropanolamine, 2-amino-2-methylpropanol Alkanolamines other than ethanolamine such as 2-aminobutanol and salts thereof; Alkanediamines and salts thereof such as 1,3-propanediamine; guanidine carbonate, sodium carbonate, potassium carbonate, guanidine bicarbonate, sodium bicarbonate, bicarbonate Examples thereof include carbonates such as potassium, among which ammonia, monoethanolamine, and ammonium hydrogen carbonate are preferable. These alkaline agents may be used in combination of two or more, combining ammonia or a salt thereof and ethanolamine or a salt thereof from the viewpoint of sufficient decolorization and hair dyeing effect, and reduction of irritating odor during hair damage and treatment. It is preferable to use it.

  The content of these alkaline agents is preferably 0.01 to 15% by mass in the total composition, more preferably 0.1 to 10% by mass, from the viewpoint of sufficient decolorization / hair dyeing effect and reduction of hair damage and scalp irritation. 0.2-5 mass% is still more preferable.

[(D): Ascorbic acid or erythorbic acid]
The component (D) ascorbic acid is a general term for ascorbic acid, ascorbic acid derivatives or salts thereof, specifically, L-ascorbic acid, L-ascorbic acid Na, L-ascorbic acid K, L-ascorbic acid. Acid Ca, L-ascorbic acid phosphate, magnesium salt of L-ascorbic acid phosphate, L-ascorbic acid sulfate, L-ascorbic acid sulfate disodium salt, L-ascorbic acid stearate, L-ascorbine Examples include acid 2-glucoside, L-ascorbyl palmitate, tetraisopalmitate L-ascorbyl and the like. Among these, L-ascorbic acid, L-ascorbic acid Na, L-ascorbic acid stearate, L-ascorbic acid 2-glucoside, L-ascorbyl palmitate, magnesium salt of L-ascorbic acid phosphate, L-ascorbic acid sulfate disodium salt and L-ascorbyl tetraisopalmitate are preferred.

  The erythorbic acid component (D) is a generic term for erythorbic acid, erythorbic acid derivatives or salts thereof, specifically erythorbic acid, erythorbic acid Na, erythorbic acid K, erythorbic acid Ca, erythorbic acid phosphate Ester, erythorbic acid sulfate ester, erythorbic acid palmitic acid ester, tetraisopalmitic acid erythorbyl, etc. are mentioned. Among these, erythorbic acid and erythorbic acid Na are preferable.

  Commercially available components (D) include L-ascorbic acid (Takeda Pharmaceutical Co., Ltd., Fuso Chemical Co., BASF Japan, Daiichi Sankyo Co., Ltd.), L-ascorbic acid Na (Takeda Pharmaceutical Co., Ltd.) , Fuso Chemical, BASF Japan, Daiichi Sankyo, etc.), AA-2G (Hayashibara Biochemical Laboratories), Ascorbic acid PM "SDK" (Showa Denko), Nikkor VC-PMG (Nippon Surfactant Kogyo Co., Ltd.), Seamate (Takeda Pharmaceutical Co., Ltd.), Ascorbyl palmitate (DSM Nutrition Japan Co., Kongo Pharmaceutical Co., Merck Co., etc.) and the like.

  Two or more of these may be used in combination, and the content thereof is preferably 0.01 to 1% by mass, more preferably 0.1 to 0.5% by mass in the total composition.

[(E): Tocopherols]
Tocopherols of component (E) is a generic name for tocopherol or derivatives thereof, dl-α-tocopherol, dl-β-tocopherol, dl-γ-tocopherol, dl-δ-tocopherol, dl-α-tocopherol acetate, Examples include tocopherols and derivatives thereof such as nicotinic acid-dl-α-tocopherol, linoleic acid-dl-α-tocopherol, dl-α-tocopherol succinate, α-tocotrienol, β-tocotrienol, γ-tocotrienol, δ-tocotrienol, etc. It is done. These are often used in the form of a mixture, and can be used in a state called extracted tocopherol, mixed tocopherol or the like. Examples of commercially available components (E) include Riken E Oil 800, 1000 (Riken Vitamin Co., Ltd.), Orizatocotrienol-90 (Olisa Yuka Co., Ltd.), and the like.

  Two or more of these may be used in combination, and the content is preferably 0.01 to 1% by mass, more preferably 0.1 to 0.5% by mass.

[(F): Polyphenols]
Component (F) polyphenols are flavonoids (catechin, anthocyanin, flavone, isoflavone, flavan, flavanone, rutin), phenolic acids (chlorogenic acid, ellagic acid, gallic acid, propyl gallate), lignans, curcumins , A general term for coumarins. Moreover, since these compounds are contained in a large amount in the following natural product-derived extracts, they can be blended in the state of extracts.

  For example, licorice extract, cucumber extract, caquette extract, gentian (gentian) extract, Gentian extract, cholesterol and its derivatives, hawthorn extract, peonies extract, ginkgo biloba extract, scallop (Ogon) extract, carrot Extract, Maika (Maika, Hamanasu) extract, Sunpens (Kawara-Ketsumei) extract, Tormentilla extract, Parsley extract, Button (buttonpi) extract, Mokka (bokeh) extract, Melissa extract, Yashajitsu (Yasha) extract , Yukinoshita extract, Rosemary (mannenrou) extract, lettuce extract, tea extract (Oolong tea, black tea, green tea, etc.), microbial fermentation metabolites, Rakan fruit extract, etc. (in parentheses are plant aliases) And herbal medicine names). Of these polyphenols, catechin, rosemary extract, glucosyl rutin, ellagic acid and gallic acid are preferred.

  Examples of commercially available components (F) include ellagic acid (Wako Pure Chemicals); RM-21A, 21E (Mitsubishi Chemical Foods), Falco Rex Rosemary E (Ichimaru Falcos) Sancatel W-5 as catechin, No.1 (Taiyo Kagaku); Na gallate (Sankatol; Taiyo Kagaku); Rutin, glucosylrutin, and enzymatic degradation rutin, Rutin K-2, P-10 (Kyria Chemical) ) And αG rutin (Hayashibara Biochemical Research Institute).

  Two or more of these may be used in combination, and the content thereof is preferably 0.01 to 1% by mass, and more preferably 0.1 to 0.5% by mass.

(Combination of (D) to (F))
Ingredients (D), (E) and (F) contribute to improving the stability of ingredient (A) in the preparation. Therefore, it is preferable to mix | blend in the same agent as a component (A). In the present invention, a combination of at least two components selected from components (D) to (F), that is, components (D) and (E), components (D) and (F), components (E) and (F), Or it is preferable to contain component (D), (E), and (F), and it is more preferable to contain component (D) and (E). The total amount of components (D) and (E) is preferably 0.01 to 2% by mass, more preferably 0.2 to 1% by mass, and the mass ratio of component (E) to component (D) (E) / (D ) Is preferably 0.1-5, more preferably 0.1-2.

[(G): Cationic polymer]
The cationic polymer of component (G) refers to a polymer having a cationic group or a group that can be ionized to a cationic group, and includes an amphoteric polymer that becomes cationic as a whole. That is, as the cationic polymer, a water-soluble one containing an amino group or an ammonium group in the side chain of the polymer chain or containing a diallyl quaternary ammonium salt as a structural unit, such as cationized cellulose, cationic starch, cationization Guar gum, diallyl quaternary ammonium salt polymer or copolymer, quaternized polyvinylpyrrolidone and the like. Among these, a polymer containing diallyl quaternary ammonium salt as a structural unit in terms of softness during shampooing, smoothness and ease of fingering, ease of packing during drying and moisturizing effect, and stability of the agent. Quaternized polyvinylpyrrolidone and cationized cellulose are preferable, and a diallyl quaternary ammonium salt polymer or copolymer and cationized cellulose are more preferable.

  Specific examples of the component (G) include dimethyldiallylammonium chloride polymer (Polyquaternium-6, such as Marquat 100; Nalco Japan), dimethyldiallylammonium chloride / acrylic acid copolymer (Polyquaternium-22, such as Marquat 280, etc. 295; Nalco Japan), dimethyldiallylammonium chloride / acrylamide copolymer (polyquaternium-7, such as Marquat 550; Nalco Japan) quaternized polyvinylpyrrolidone derivative (polyquaternium-11, such as Guffkat 734, 755, 755N; IP Japan), cationized cellulose derivatives (polyquaternium-10, such as Leogard G, GP; Lion, polymer JR-125, JR-400, JR-30M, LR-400, LR-30M Above, Dow Chemical Japan Ltd.).

  These cationic polymers may be used in combination of two or more, and the content thereof is preferably 0.001 to 20% by mass, 0.01 to 10% by mass in the total composition, from the viewpoint of fading prevention effect and touch improvement effect. % Is more preferable, and 0.05-5 mass% is still more preferable.

[(H): iso fatty acid or anteiso fatty acid or salt thereof]
Component (H) 12 to 30 carbon iso fatty acids or 12 to 30 carbon anteiso fatty acids or salts thereof include 14-methylpentadecanoic acid, 15-methylhexadecanoic acid, 16-methylheptadecanoic acid as isofatty acids. , 17-methyloctadecanoic acid, 18-methylnonadecanoic acid, 19-methylicosanoic acid, 20-methylhenicosanoic acid, and 13-methylpentadecanoic acid, 14-methylhexadecanoic acid, 15-methylheptadecanoic acid, Examples include 16-methyloctadecanoic acid, 17-methylnonadecanoic acid, 18-methylicosanoic acid, and 19-methylhenicosanoic acid. These salts include alkali metal salts such as sodium salt and potassium salt, alkaline earth metal salts such as calcium salt and magnesium salt, organic amines such as ammonium salt, triethanolamine salt, diethanolamine salt and monoethanolamine salt. Examples include basic amino acid salts such as salts, lysine salts, and arginine salts. These fatty acids are preferably saturated fatty acids, more preferably 14 to 24, and particularly preferably 16 to 22. Examples of commercially available products include 18MEA (manufactured by Croda Japan).

  Two or more of these may be used in combination, and the content in the hair dye composition of the present invention is preferably 0.01 to 10% by mass from the viewpoint of anti-fading effect and improved touch, 0.05 to 5 The mass% is more preferable.

〔dye〕
The first agent of the hair dye composition of the present invention contains an oxidation dye intermediate or a direct dye. As the oxidation dye intermediate, known precursors and couplers that are usually used in hair dyes can be used.

  Examples of the precursor include paraphenylenediamine, toluene-2,5-diamine, 2-chloroparaphenylenediamine, paraaminophenol, paramethylaminophenol, orthoaminophenol, 2,4-diaminophenol, and N-phenylparaphenylenediamine. These salts are mentioned.

  Examples of the coupler include m-phenylenediamine, 2,4-diaminophenoxyethanol, m-aminophenol, 2-methyl-5-aminophenol, 2-methyl-5- (2-hydroxyethylamino) phenol, resorcin, Examples include 1-naphthol, 1,5-dihydroxynaphthalene and salts thereof.

  Each of the precursor and the coupler may be used alone or in combination of two or more, and the content thereof is preferably 0.01 to 10% by mass, and more preferably 0.1 to 5% by mass of the total composition.

  Further, the hair dye composition of the present invention may contain a direct dye, and examples thereof include an acid dye, a nitro dye, a disperse dye, and a basic dye.

  Examples of the acid dye include Blue No. 1, Purple No. 401, Black No. 401, Orange No. 205, Red No. 227, Red No. 106, Yellow No. 203, and Acid Orange 3. Nitro dyes include 2-nitro-p-phenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitro-o-phenylenediamine, 4-amino -3-nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC blue 2, HC orange 1, HC red 1, HC yellow 2, HC yellow 4, HC yellow 5, HC red 3, N, N-bis Examples thereof include (2-hydroxyethyl) -2-nitro-p-phenylenediamine, 4-nitro-m-phenylenediamine and the like, and salts thereof such as sulfates and hydrochlorides. Examples of the disperse dye include disperse purple 1, disperse blue 1, and disperse black 9. Examples of the basic dye include basic blue 99, basic brown 16, basic brown 17, basic red 76, basic red 51, basic yellow 57, basic yellow 87, basic orange 31 and the like.

  Two or more direct dyes may be used in combination, and the content thereof is preferably 0.001 to 5% by mass, more preferably 0.01 to 3% by mass in the total composition.

[Higher alcohol]
The hair dye composition of the present invention preferably contains a higher alcohol in any one or more of the first agent, the second agent, and the third agent from the viewpoint of improving touch and stability. 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 8 to 22 carbon atoms are preferred, those having 16 to 22 carbon atoms are more preferred, and specific examples include cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, and the like, and mixtures thereof. Among them, cetyl alcohol is preferable from the viewpoint of touch.

  Two or more higher alcohols may be used in combination, and the content thereof is preferably 0.01 to 25% by mass, more preferably 0.1 to 20% by mass in the total composition.

[Surfactant]
The hair dye composition of the present invention can contain a surfactant. As the surfactant, any of a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, and an anionic surfactant can be used.

  As the cationic surfactant, mono long chain alkyl quaternary ammonium salts are preferable, and specific examples thereof include cetrimonium chloride, steartrimonium chloride, behentrimonium chloride, stearalkonium chloride, benzalkonium chloride and the like. Stearyltrimonium chloride and behentrimonium chloride are more preferable. Commercially available cationic surfactants include Coatamine 86W, 86P Conch, 60W, D2345P (above, manufactured by Kao), Nikkor CA-2580 (manufactured by Nippon Surfactant Kogyo Co., Ltd.).

  Nonionic surfactants include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, higher fatty acid sucrose ester, polyglycerin fatty acid ester, higher fatty acid mono- or diethanolamide, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid Examples thereof include esters, polyoxyethylene sorbite fatty acid esters, alkyl saccharides, alkylamine oxides, and alkylamidoamine oxides. Of these, polyoxyalkylene alkyl ether and polyoxyethylene hydrogenated castor oil are preferable, and polyoxyethylene alkyl (12-14) ether is more preferable. Commercially available nonionic surfactants include Nikkor BC-2, BC-40TX (made by Nippon Surfactant Kogyo Co., Ltd.), Emulgen 220, 409P, 2020G-HA, GE-IS (U) (Kao Corporation) Product), Softanol 30 (manufactured by Nippon Shokubai Co., Ltd.), Amizole CME (manufactured by Kawaken Fine Chemical Co., Ltd.), EMALEX GMS-B, 510, 600 di-S (manufactured by Nippon Emulsion Co., Ltd.), and the like.

  Examples of amphoteric surfactants include imidazoline series, carbobetaine series, amide betaine series, sulfobetaine series, hydroxysulfobetaine series, and amide sulfobetaine series. Betaine interfaces such as alkyldimethylaminoacetic acid betaines and fatty acid amidopropyl betaines. An activator is more preferred, and fatty acid amidopropyl betaine is more preferred. Examples of commercially available amphoteric surfactants include Nissan Anon BDL (manufactured by NOF Corporation).

  Anionic surfactants include alkyl benzene sulfonates, alkyl or alkenyl ether sulfates, alkyl or alkenyl sulfates, olefin sulfonates, alkane sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, Examples include α-sulfone fatty acid salts, N-acyl amino acid salts, phosphoric acid mono- or diesters, and sulfosuccinic acid esters. Examples of the alkyl ether sulfate include polyoxyethylene alkyl ether sulfate. Counter ions of the anionic group of these anionic surfactants include alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; alkanol group having 2 or 3 carbon atoms Alkanolamine having 1 to 3 (for example, monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, etc.). Examples of commercially available anionic surfactants include EMAL 10G and 20C (manufactured by Kao Corporation).

  Two or more of these surfactants may be used in combination, and the content thereof is preferably 0.1 to 30% by mass in the total composition, more preferably 0.2 to 20% by mass in terms of touch and emulsification performance. 0.5-15 mass% is still more preferable.

[Silicones]
The hair dye composition of the present invention preferably further contains silicones in order to give an excellent feeling of use. Examples of silicones include polysiloxanes, modified silicones (for example, amino-modified silicones, fluorine-modified silicones, alcohol-modified silicones, polyether-modified silicones, epoxy-modified silicones, and alkyl-modified silicones), cyclic polysiloxanes, and methylphenyl polysiloxanes. , Fatty acid-modified silicone, alcohol-modified silicone, alkoxy-modified silicone, epoxy-modified silicone, fluorine-modified silicone, alkyl-modified silicone, and the like. Among them, polysiloxanes, polyether-modified silicone, and amino-modified silicone are preferable. Further, as such silicones, those diluted or dispersed with volatile silicone, nonvolatile silicone or the like, or those in which dispersed liquid particles are formed in an aqueous surfactant can be used.

  More specifically, for example, BY11-026, BY22-19, FZ-3125, SH200-1,000,000cs (Toray Dow Corning), TSF451-100MA (Momentive Performance Materials Japan) (polysiloxane above) TSF4440 (Momentive Performance Materials Japan), KF-6005, KF-6011 (Shin-Etsu Chemical Co., Ltd.) [Polyether-modified silicones]; SF8451C, SF8452C, SF8457C, SM8704C (Toray Dow Corning) Co., Ltd.), KF-867 (Shin-Etsu Chemical Co., Ltd.), SM8904 (Toray Dow Corning Co., Ltd.) [above amino-modified silicone] and the like.

  Two or more of these silicones may be used in combination, and the content thereof is preferably 0.001 to 20% by mass, more preferably 0.01 to 10% by mass, and further preferably 0.05 to 5% by mass in the total composition. .

[Medium]
In the hair dye composition of the present invention, water and, if necessary, an organic solvent are used as a medium. Examples of organic solvents include lower alcohols such as ethanol and 2-propanol, aromatic alcohols such as benzyl alcohol and benzyloxyethanol, polyols such as propylene glycol, 1,3-butanediol, diethylene glycol, and glycerin, ethyl cellosolve, Examples thereof include cellosolves such as butyl cellosolve, and carbitols such as ethyl carbitol and butyl carbitol.

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

[Dosage form, pH, viscosity]
The mixing ratio of the first agent containing the component (C) and the second agent containing the component (B) of the hair dye composition of the present invention is such that the first agent: second agent (mass ratio) is 1: 0.5. A range of ˜1: 3 is preferable in terms of practicality.

  The first agent has a pH of 8 to 12 at 25 ° C., and the second agent preferably has 2 to 5. The pH of the hair dye composition in which the first agent and the second agent are mixed depends on the decolorization / hair dyeing effect and skin From the point of irritation, 7.5 to 12 is preferable, and pH 8 to 11 is more preferable. In addition to the alkali agent of component (C), the pH adjuster includes inorganic acids such as hydrochloric acid and phosphoric acid, organic acids such as citric acid, glycolic acid and lactic acid, hydrochlorides such as ammonium chloride and monoethanolamine hydrochloride, phosphorus Examples thereof include phosphates such as monopotassium dihydrogen phosphate and disodium monohydrogen phosphate.

In the hair dye composition of the present invention, the dosage form of the first agent and the second agent can be, for example, liquid, emulsion, cream, gel, paste, mousse, etc. You can also It is desirable to mix the first agent and the second agent (or the third agent in the case of the three-agent type), and to make the viscosity difficult to spill when applied to the hair, 25 ° C, type B with helical stand The viscosity measured by a rotational viscometer (B8R type viscometer, TOKIMEC) is preferably 2,000 to 100,000 mm ² / s. Here, the viscosity is a value after rotating at 10 rpm for 1 minute using a rotor TC. The dosage form of the essence agent is preferably liquid, emulsion, cream, gel, or paste from the viewpoint of product form and mixing properties.

  In a two-component hair dye or a three-component hair dye, the astaxanthin of component (A) can be added to the second agent in which the oxidizing agent of component (B) is present, but from the viewpoint of formulation stability. It is preferable to blend in the first agent in which component (B) is not present. Moreover, it is also preferable to mix | blend a component (A) with the essence agent mixed simultaneously when mixing a 1st agent and a 2nd agent.

[Hair dyeing method]
In order to dye hair using the hair dye composition of the present invention, the first and second agents of the hair dye composition of the present invention, and in the case of the three-component type, the third agent and essence agent are further added. In the case of attachment, the essence agent may be further mixed immediately before use, then applied to the hair, left for a predetermined time within 1 hour, rinsed and dried. The application temperature to the hair is preferably 15 to 45 ° C. The application time to the hair is preferably 1 to 60 minutes, more preferably 5 to 45 minutes, and even more preferably 10 to 30 minutes. When washing off, simple water washing may be used, but it is more preferable to use a shampoo. As the shampoo, a shampoo containing a total of 5 to 60% by mass of an anionic surfactant such as sodium laureth-1 sulfate, sodium laureth-2 sulfate, or sodium laureth-3 sulfate is preferable.

[Color fading prevention method]
Contains component (A) before or after hair dyeing with a hair dye composition containing / not containing component (A), in addition to hair dyeing using a hair dye composition containing component (A) The color fading can also be prevented by applying the composition to the hair. Examples of such a composition include dosage forms such as a hair dyeing pre-treatment agent, a hair dyeing post-treatment agent, a hair conditioner, a hair treatment, and a hair styling agent.

Examples 1-8 and Comparative Example 1
<Hair dyeing process>
Equal amount of hair dye 1st agent shown in Table 2 and hair dye 2nd agent shown in Table 3 are mixed twice, and doubled against 1g of Chinese white hair (purchased from Beaulux) An amount (2 g) was applied. After standing at 30 ° C. for 20 minutes, the hair dye was washed with water, further washed twice with the test shampoo shown in Table 1, and then naturally dried to obtain a test hair bundle.

<Hair washing process>
An aqueous solution (10% by mass) of the test shampoo shown in Table 1 is filled into a 100 mL glass bottle, the test hair bundle is immersed in this, and the hair is washed for a predetermined time while shaking in a shaking stirrer (40 ° C., 120 rpm). It was. As for the hair washing effect obtained under these conditions, a shaking time of 20 minutes corresponds to about 1 week of washing with daily shampoo. After 60 minutes, the hair bundle was taken out, washed lightly, and dried with a dryer.

<Robustness test>
The difference in color between the test hair bundle immediately after the completion of the hair dyeing process and the hair bundle obtained after the hair washing process was visually evaluated by a panel, and used as an indicator of fastness according to the following criteria. The results are shown in Table 2.
Based on Comparative Example 1,
◎: Fastness is good ○: Fastness is slightly good-: Fastness is not changed △: Fastness is slightly bad ×: Robustness is poor

Example 9
Equal amounts of the hair dye 1st agent shown in Table 4 and the hair dye 2nd agent shown in Table 5 are mixed, applied to the hair in a bath ratio of 1: 1, and allowed to stand at room temperature for 20 minutes. The agent is washed with water and dried.

Example 10
The hair dye first agent shown in Table 6 and the hair dye second agent shown in Table 7 are mixed at a mass ratio of 1: 1.5, applied to the hair at a bath ratio of 1: 1, and at room temperature for 20 minutes. After leaving, the hair dye is washed with water and dried.

Example 11
The hair dye first agent shown in Table 8 and the hair dye second agent shown in Table 9 are mixed at a mass ratio of 1: 1, applied to the hair at a bath ratio of 1: 1, and at room temperature for 20 minutes. After leaving, the hair dye is washed with water and dried.

Example 12
The hair dye first agent shown in Table 10 and the hair dye second agent shown in Table 3 and the essence agent shown in Table 11 are mixed at a mass ratio of 10: 10: 1, and the bath ratio is 1: 1. Apply to hair and leave at room temperature for 20 minutes, then wash hair dye and dry.

Example 13
An appropriate amount of the hair dye pretreatment agent shown in Table 12 is applied to the hair and left for 5 minutes. Mix the same amount of the hair dye 1st agent shown in Table 10 and the hair dye 2nd agent shown in Table 3, apply to the hair in a bath ratio of 1: 1, leave it at room temperature for 20 minutes, and then dye the hair. Wash with water and dry.

Example 14
Equal amounts of the first hair dye agent shown in Table 10 and the second hair dye agent shown in Table 3 are mixed and applied to the hair in a bath ratio of 1: 1, and left at room temperature for 20 minutes. After washing the hair dye with water, the hair dyeing post-treatment agent shown in Table 13 is applied to the hair, allowed to stand for 5 minutes, then washed with water and dried.

Claims (4)

A hair dye composition containing the following components (A) to (C) and (G) .
(A) Astaxanthin or its derivative
(B) Oxidizing agent
(C) Alkaline agent
(G) Cationic polymer The hair dye composition according to claim 1, comprising at least one component selected from the following components (D), (E) and (F).
(D) Ascorbic acid or erythorbic acid
(E) Tocopherols
(F) Polyphenols Furthermore, the hair dye composition of Claim 1 or 2 containing the following component (H).
(H) C12-30 isofatty acid or anteisofatty acid or a salt thereof A hair dyeing method wherein the hair dye composition according to any one of claims 1 to 3 is applied to hair and left for 1 to 60 minutes, followed by washing.