JP6196753B2 - Oxidative hair dye composition - Google Patents

Description

  The present invention relates to an oxidative hair dye composition. More specifically, the present invention relates to an oxidative hair dye composition capable of imparting good lightness to hair by using an alkaline agent containing at least a carbonate and ensuring sufficient hair coloring power.

  A normal oxidative hair dye is applied to hair by mixing a first agent containing an oxidative dye intermediate and an alkaline agent and a second agent containing an oxidant at the time of use. The alkaline agent swells the hair to promote the penetration of the oxidative dye intermediate and the oxidant into the hair, and also promotes the action of the oxidant by changing the pH. The oxidizing agent decomposes and decolorizes the melanin contained in the hair and oxidizes and polymerizes the oxidative dye intermediate to develop a color.

  In the use of such oxidative hair dyes, in recent years, there has been an increasing demand for “fashion dyeing” for dyeing hair with better lightness (bright color). It is known that the blending of an alkaline agent in an oxidative hair dye is important for improving the lightness of hair.

  Ammonia, which is generally used as a suitable alkali agent, has a problem that it is uncomfortable due to an irritating odor when used. Accordingly, attempts have been made to reduce the irritating odor while maintaining the effect of improving the brightness by substituting a part of ammonia with another kind of alkaline agent.

  Alkali agents for substituting ammonia include alkylamines and alkanolamines with little irritating odors. However, when these organic amines are used in a large amount, problems such as scalp irritation and deterioration in the texture of the finish occur. Therefore, it is conceivable to substitute at least a part of ammonia with carbonate. Carbonate is considered to be a suitable alkaline agent for improving the lightness of hair while reducing the irritating odor of the oxidative hair dye.

  The following Patent Document 1 discloses a hair treatment agent as a first agent of an oxidative hair dye or a hair bleaching agent, in which ammonia, an ammonium salt and a carbonate are blended at a constant molar ratio as an alkaline agent, and the molar ratio thereof. The case where the carbonate occupies most of the alkaline agent is also included. And if this hair treatment agent is used, it is said that the hair dyeing and hair decoloring with high brightness are possible.

  The hair dye composition disclosed in the following Patent Document 2 is the first agent of an oxidative hair dye or a hair bleaching agent, and by replacing a part of aqueous ammonia used as an alkali agent with an alkali metal carbonate. , Reducing both irritating odor and maintaining bleaching power.

  The hair dye composition disclosed in the following Patent Document 3 is also substantially the first agent for oxidative hair dyes and hair bleaching agents, and contains ammonia or an ammonium salt and carbonate at a fixed molar ratio as an alkaline agent. In addition, by containing a transition metal salt and a chelating agent, it is said that there is little irritating odor, low irritation, and effective in improving the lightness of hair. The chelating agent in this hair dye composition is said to have “the ability to chelate with metal ions in the transition metal salt”.

  Furthermore, the following Patent Document 4 is a depigmenting agent composition and a hair dye composition, in which ammonia and monoethanolamine are blended as alkaline agents to impart lightness to hair. Do not mix. A stimulating odor caused by an alkaline agent is suppressed by blending a nonionic surfactant, a cationic surfactant, a higher alcohol, an oil component, etc. to constitute a micelle or a liquid crystal structure.

JP 2001-206825 A JP 2002-179539 A JP 2001-328926 A JP 2002-363049 A

  By the way, according to the research of the present inventor, when a large amount of carbonate is added as an alkaline agent to the oxidative hair dye, the lightness of the hair is improved but sufficient hair dyeing power cannot be obtained, and the hair dyeing becomes thin. It turned out that there was a problem. This problem is not solved even if the pH of the oxidative hair dye is changed. Therefore, it is considered that this problem is not simply based on an increase in pH of the oxidative hair dye.

  Therefore, the present invention should solve the problem of providing an oxidative hair dye composition that can impart good lightness to hair by blending carbonate as an alkaline agent and that can also secure sufficient hair coloring power. Let it be an issue.

  The inventor of the present application forms a suitable oil-in-water emulsion by blending an oily component and a surfactant at a controlled mass ratio even when carbonate is blended with an oxidative hair dye, and a certain amount of It has been found that the above-mentioned problems can be solved by adding a chelating agent together.

(Configuration of the first invention)
The configuration of the first invention of the present application for solving the above problems is as follows: (A) an alkali agent containing at least a carbonate, (B) an oil component, (C) a surfactant, (D) a chelating agent, and (E) an oxidizing agent. A hair dye composition containing the (B) component and the (C) component in which the mass ratio B / C is in the range of 2 to 4.5, and the blending of the (D) component It is an oxidative hair dye composition whose amount is in the range of 0.2 to 0.5% by mass.

  In the specification of the present application, the mass percentage of the content of the specific component in the oxidative hair dye composition and the mass ratio of the content between the specific components are the oxidative hair dye composition unless otherwise specified. The value at the time of use of the product (when mixing each agent in the multi-component oxidative hair dye composition) is shown.

(Configuration of the second invention)
The structure of the second invention of the present application for solving the above-described problem is that, in the oxidative hair dye composition according to the first invention, as the component (C), (C1) a nonionic surfactant having an HLB value of 10 or more An oxidative hair dye composition containing

(Configuration of the third invention)
The composition of the third invention of the present application for solving the above-mentioned problem is that, in the oxidative hair dye composition according to the second invention, the mass ratio of the content of the (C1) component to the content of the (C) component is 50%. This is the oxidative hair dye composition as described above.

(Configuration of the fourth invention)
The structure of the fourth invention of the present application for solving the above-described problem is that the oxidation hair dye composition according to any one of the first to third inventions contains (D1) an alkaline chelating agent as the component (D). It is an oxidative hair dye composition.

  Since the oxidative hair dye composition of 1st invention contains the alkaline agent which contains a carbonate at least as (A) component, it can provide favorable brightness to hair. Moreover, also when carbonate and ammonia are contained as component (A), a sufficient brightness improvement effect on the hair can be obtained while reducing the irritating odor caused by ammonia within the allowable limit.

  Moreover, according to the oxidation hair dye composition of 1st invention, the mass ratio B / C of content of both of (B) component oily component and (C) component surfactant is 2 to 2. Formulated at a controlled mass ratio in the range of 4.5. Therefore, it can be set as emulsified preparations, such as a cream with good hair dyeing power, based on favorable applicability | paintability. If the mass ratio B / C is less than 2, the properties of creams and the like become too hard, and if the mass ratio B / C exceeds 4.5, the oily feeling becomes too strong and the hair does not fit well. Therefore, in any case, good coatability cannot be ensured, and the hair dyeing power of the oxidative hair dye deteriorates.

  In addition, the oxidative hair dye composition of the first invention contains 0.2 to 0.5% by mass of a chelating agent as component (D). The chelating agent captures metal ions adhering to the hair surface, so that the oxidative dye and the oxidant in the oxidative hair dye can efficiently penetrate into the hair and improve the hair dyeing power of the oxidative hair dye. When the content of the chelating agent is less than 0.2% by mass in a state where a large amount of carbonate is blended, sufficient brightness and dyeing cannot be secured, and the content of the chelating agent is 0.5% by mass. If it exceeds 1, the lightness of the oxidative hair dye cannot be ensured instead of ensuring the lightness.

  A component (C1) that is highly hydrophilic and suitable for the construction of an oil-in-water emulsion, that is, a nonionic surfactant having an HLB value of 10 or more, like the oxidative hair dye composition of the second invention When it is contained as at least part of the component (C), the hair cosmetic composition can be made into an emulsified preparation such as a particularly good cream.

  When the mass ratio of the content of the component (C1) to the content of the component (C1) is 50% or more like the oxidative hair dye composition of the third invention, the effect of the second invention is particularly remarkable. Secured.

  In the oxidation hair dye composition of the fourth invention, since the alkaline chelating agent which is the component (D1) is contained as the component (D), the effect of improving the hair coloring power of the oxidation hair dye based on the blending of the chelating agent is particularly effective. Remarkably can be obtained.

  Next, modes for carrying out the present invention will be described including the best mode.

[Oxidative hair dye composition]
The oxidative hair dye composition according to the present invention contains (A) an alkaline agent containing at least a carbonate, (B) an oil component, (C) a surfactant, (D) a chelating agent, and (E) an oxidizing agent. It is an oxidation hair dye composition, Comprising: Mass ratio B / C of content of (B) component and (C) component exists in the range of 2-4.5, and the compounding quantity of (D) component is 0. Within the range of 2 to 0.5% by mass.

  The mass ratio B / C is more preferably in the range of 2-4. In addition to the components (A) to (E) described above, an oxidative dye intermediate is blended as an essential component in the oxidative hair dye composition, and in some cases, a direct dye is further blended.

  The oxidative hair dye composition of the present invention is usually constituted in a multi-drug form. That is, 2 of the 1st agent which mix | blended the dye component which consists of the alkali agent which is (A) component, and an oxidation dye intermediate (and also direct dye), and the 2nd agent which mix | blended the oxidant which is (E) component In addition to the first agent and the second agent, for example, a third agent containing a third agent containing, for example, an oxidation aid is added. In the multi-component oxidative hair dye composition, the components (B), (C), and (D) may be blended in any one of the agents constituting the oxidative hair dye composition, You may disperse | distribute and mix | blend in arbitrary 2 or more agents.

  The dosage form of such an oxidative hair dye composition is not particularly limited. For example, various known dosage forms such as gel, liquid, foam, paste, and cream are selected, preferably In the form of an oil-in-water emulsion, it is a paste or cream, especially a cream. Moreover, you may use it by foaming using a former container at the time of use.

  Furthermore, the oxidative hair dye composition of the present invention is constituted as a powdery composition containing, for example, each of the components (A) to (E) in a one-part formulation, and dissolved in a solution such as water at the time of use. It can also be applied to.

[Essential component of oxidative hair dye composition]
((A) component)
The component (A) is at least one alkali agent, and the alkali agent contains at least one carbonate.

  The type of carbonate is not limited, and metal carbonates or bicarbonates such as sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, lithium carbonate, calcium carbonate, magnesium carbonate, barium carbonate, etc., guanidine carbonate And guanidine bicarbonate are also exemplified. Moreover, an ammonium carbonate, ammonium hydrogencarbonate, etc. are illustrated.

  The type of alkaline agent other than carbonate is not limited, but ammonia, alkanolamine (monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, etc.), ammonium salts, organic amines (2 -Amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, guanidine, etc.), inorganic alkali (sodium hydroxide, potassium hydroxide, etc.) excluding carbonates, basic amino acids (Arginine, lysine, etc.) and their salts. Among these, ammonia, monoethanolamine and the like that are particularly effective for improving the lightness of hair are preferable.

  The content of the alkali agent in the oxidative hair dye composition is not limited, but it is preferable to contain the alkali agent so that the pH of the oxidative hair dye composition is about 8.5-12. Among the alkali agents (A), the mass ratio A1 / A2 of the carbonate (A1) and the alkali agent other than the carbonate (A2) is not necessarily limited, and the preferred mass ratio varies depending on the type of A2, In general, A1 / A2 is preferably about 0.01 to 5. When the alkaline agent other than the carbonate is 28% ammonia water, the mass ratio A1 / A2 is preferably set to about 0.05 to 3, for example.

((B) component)
The component (B) is one or more oily components. The type of the oil component is not limited, and examples thereof include higher alcohols, silicones, fats and oils, hydrocarbons, higher fatty acids, waxes, esters and the like, and higher alcohols and hydrocarbons are particularly preferable. The content of the oil component in the oxidative hair dye composition is not limited as long as the above-described mass ratio B / C is in the range of 2 to 4.5, but is preferably about 2 to 4% by mass.

  Examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, 2-octyldodecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, aralkyl alcohol, behenyl alcohol, lauryl alcohol, myristyl alcohol, decyltetra alcohol. 1 or more types chosen from decanol, lanolin alcohol, hydrogenated lanolin alcohol, etc. are mentioned. More preferable examples include myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, and behenyl alcohol, which are saturated or unsaturated linear higher alcohols.

  Silicones include dimethylpolysiloxane (INCI name: dimethicone), dimethylpolysiloxane having hydroxy end groups (INCI name: dimethiconol), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and polyether-modified. Examples thereof include silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone. The amino-modified silicone is preferably an aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer. Preferred examples of the polyether-modified silicone include PEG-10 dimethicone and PEG-11 dimethicone.

  Examples of fats and oils include rosehip oil, camellia oil, sunflower oil, linseed oil, almond oil, shea fat, mink oil, and the like.

  Examples of the hydrocarbon include α-olefin oligomer, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, squalene, squalane, polybutene, paraffin, polyethylene powder, microcrystalline wax, petrolatum and the like.

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

  Examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin and the like.

  Esters include isopropyl myristate, diisopropyl adipate, cetyl octanoate, isopropyl palmitate, butyl stearate, isocetyl isooctanoate, isononyl isononanoate, butyl myristate, isotridecyl myristate, octyldodecyl myristate, 2-palmitate Ethylhexyl, octyldodecyl ricinoleate, cetyl caprylate, diisostearyl malate, dioctyl succinate, cetyl 2-ethylhexanoate, stearyl stearate, myristyl myristate, fatty acid cholesteryl / lanosteryl having 10-30 carbon atoms , Cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester , Cetyl caprate, glyceryl tricaprylate, and the like.

((C) component)
Component (C) is one or more surfactants. The type of the surfactant is not limited, and can be arbitrarily selected from cationic, anionic, nonionic and zwitterionic surfactants. The component (C) particularly preferably contains a nonionic surfactant having an HLB value of 10 or more as the component (C1), and the mass of the content of the component (C1) relative to the content of the component (C) It is particularly preferable that the ratio is 50% or more. The HLB value in the present invention is a value obtained from an IOB value based on an organic conceptual diagram ("Organic conceptual diagram-basics and applications", Yoshio Koda, Sankyo Publishing). The IOB value is a ratio between the inorganic value and the organic value of the surfactant (inorganic value / organic value), and the HLB value is a value of IOB value × 10.

  The content of the surfactant in the oxidative hair dye composition is not limited as long as the mass ratio B / C is in the range of 2 to 4.5, but is preferably about 2 to 4% by mass. .

  Examples of the nonionic surfactant having an HLB value of 10 or more as the component (C1) include the following. “POE” is an abbreviation for “polyoxyethylene”, and “POP” is an abbreviation for “polyoxypropylene”.

  Decaglyceryl monolaurate, polyethylene glycol monostearate (25E.O.), polyethylene glycol monostearate (40E.O.), polyethylene glycol monostearate (45E.O.), mono coconut oil fatty acid POE (20) sorbitan, Monolauric acid POE (6) sorbit, POE (40) lanolin alcohol, POE (30) phytosterol, POE (20) POP (4) cetyl ether, POE (21) lauryl ether, POE (30) cetyl ether, POE (20) Stearyl ether, POE (20) behenyl ether, POE (80) hydrogenated castor oil, POE (10) oleyl ether, POE (20) oleyl ether, POE (30) behenyl ether, POE (50) oleyl ether , POE (10) cetyl ether, POE (15) behenyl ether, POE (9) lauryl ether.

  In addition to the component (C1), nonionic surfactants having an HLB value of less than 10 include propylene glycol monostearate, glyceryl monostearate, POE monostearate (5) glyceryl, sorbitan monopalmitate, Tetraoleic acid POE (6) sorbit, POE (5) phytosterol, glycol monostearate, POE (2) lauryl ether, POE (2) cetyl ether, POE (2) stearyl ether, POE (7.5) hydrogenated castor oil Etc. are exemplified.

  Cationic surfactants include alkyltrimethylammonium chloride, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride (cetrimonium chloride), stearyltrimethylammonium chloride (steartrimonium chloride), behenyltrimethylammonium chloride (behentrimonium chloride), Distearyldimethylammonium chloride (disteardimonium chloride), dicocoyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, ethyl lanolin sulfate fatty acid aminopropylethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin , Behenyltrimethylammonium methyl sulfate And quaternium -91, and the like.

  Anionic surfactants include alkyl ether sulfates such as POE sodium lauryl ether sulfate, alkyl sulfates such as sodium lauryl sulfate, sodium cetostearyl sulfate, sodium cetyl sulfate, alkenyl ether sulfate, alkenyl sulfate, and olefin sulfonic acid. Salts, alkane sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates such as POE lauryl ether sodium acetate, α-sulfone fatty acid salts, cocoyl glutamic acid triethanolamine (cocoyl glutamic acid TEA), coconut oil fatty acid acyl Examples include N-acyl amino acid type surfactants such as sodium glutamate, phosphate mono- or diester type surfactants, and sulfosuccinates.

  Examples of the zwitterionic surfactant include the following (1) to (5).

  (1) Fatty acid amides such as coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, palm oil fatty acid amidopropyldimethylaminoacetic acid betaine, lauric acid amidopropyldimethylaminoacetic acid betaine (lauramidopropyl betaine), ricinoleic acid amidopropyldimethylaminoacetic acid betaine Propyldimethylaminoacetic acid betaines and their sodium, potassium or triethanolamine salts.

  (2) Decyldimethylaminoacetic acid betaine, lauryldimethylaminoacetic acid betaine, myristyldimethylaminoacetic acid betaine, cetyldimethylaminoacetic acid betaine, stearyldimethylaminoacetic acid betaine, oleyldimethylaminoacetic acid betaine, behenyldimethylaminoacetic acid betaine, coconut oil alkyldimethylamino Alkyldimethylaminoacetic acid betaines such as betaine acetate and their sodium, potassium or triethanolamine salts.

  (3) Cocoamphoacetic acid Na (N-coconut oil fatty acid acyl-N′-carboxymethyl-N′-hydroxyethylethylenediamine), Cocoamphopropionic acid Na (N-coconut oil fatty acid acyl-N′-carboxyethyl-N′— Hydroxyethylethylenediamine), lauroamphoacetic acid Na (N-lauroyl-N′-carboxymethyl-N′-hydroxyethylethylenediamine), olive amphoacetic acid Na, cacao butterfly amphoacetate Na, sesame amphoacetate Na, sweet almond amphoacetate Na, stearoamphoacetic acid N-acylaminoethyl-N-2-hydroxyethylaminocarboxylates such as salt, palm amphoacetate Na, peanut amphoacetate Na, sunflower seed amphoacetate Na, cottonseed amphoacetate Na.

  (4) N-acylaminoethyl-N-carboxymethoxyethylaminocarboxylates such as cocoamphodiacetate Na, cocoamphodipropionate Na, and lauroamphodiacetate Na.

  (5) Hydroxyalkyl (C12-14) hydroxyethyl sarcosine.

((D) component)
Component (D) is one or more chelating agents. The chelating agent is not limited as long as it has a function of coordinating to the metal ion and capturing the metal ion. However, the chelating agent is an alkaline chelating agent (D1) component, that is, higher than pH 7. Chelating agents that work effectively in the alkaline pH range are preferred. Examples of the preferable alkaline chelating agent include ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), dihydroxyethylethylenediaminediacetic acid (DHEDDA), diethylenetriaminepentaacetic acid (DTPA), and salts thereof. You may mix | blend EDTA, HEDTA, etc. as a hydrate.

  Specific examples of chelating agents include, in addition to the above, 1,3-propanediaminetetraacetic acid (1,3PDTA), triethylenetetraminehexaacetic acid (TTHA), nitrilotriacetic acid (NTA), hydroxyethyliminodiacetic acid ( HIMDA), L-aspartic acid-N, N-diacetic acid (ASDA), aminotrimethylenephosphonic acid (NTMP), hydroxyethanediphosphonic acid (HEDP), gluconic acid, tripolyphosphoric acid, ascorbic acid, tartaric acid, citric acid, Examples include compounds such as oxalic acid and maleic acid, salts of the compounds, derivatives of the compounds, and salts of the derivatives.

  The content of the chelating agent in the oxidative hair dye composition needs to be in the range of 0.2 to 0.5% by mass.

(Dye component)
In the oxidative hair dye composition, as described above, an oxidative dye intermediate is blended, and in some cases, a direct dye is blended. Oxidative dye intermediates consist of major intermediates or consist of major intermediates and couplers.

  Among the oxidation dye intermediates, main intermediates mainly include o- or p-phenylenediamines or aminophenols. Specifically, p-phenylenediamine, toluene-2,5-diamine (p- Tolylenediamine), 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 Examples thereof include salts thereof. Examples of the salt include hydrochloride, sulfate, acetate and the like. What is necessary is just to set suitably content of the main intermediate body in an oxidative hair dye composition as needed.

  Among the oxidation dye intermediates, couplers mainly include m-diamines, aminophenols or diphenols. Specifically, resorcin, catechol, pyrogallol, phloroglucin, gallic acid, hydroquinone, 5-amino- o-cresol, m-aminophenol, 5- (2-hydroxyethylamino) -2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4-diamine, α-naphthol, 2, Examples include 6-diaminopyridine, diphenylamine, 3,3′-iminodiphenyl, 1,5-dihydroxynaphthalene and tannic acid and their salts. What is necessary is just to set suitably content of the coupler in an oxidative hair dye composition as needed.

  Examples of direct dyes include various acid dyes, basic dyes, nitro dyes, and disperse dyes. Of these, the acid dyes include Blue No. 1, Purple No. 401, Black No. 401, Orange No. 205, Red No. 227, Red No. 106, Yellow No. 203, Acid Orange 3, etc. Examples 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, and nitro dyes include 2-nitro-p-phenylene. Diamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitro-o-phenylenediamine, 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 Ye -No.4, HC Yellow No.5, HC Red No.3, N, N-bis- (2-hydroxyethyl) -2-nitro-p-phenylenediamine, etc. Violet 1, Disperse Blue 1, Disperse Black 9 and the like. What is necessary is just to set content of the direct dye in an oxidative hair dye composition suitably as needed.

[Other components in oxidative hair dye composition]
In addition to the above essential components, the following components are optionally added to the oxidative hair dye composition of the present invention.

(Peptides, amino acid components)
Peptides and amino acid components include animal proteins such as collagen, keratin, elastin, fibroin, silk, casein, and gelatin, proteins obtained from plants such as wheat, barley, oats, soybeans, almonds, and the like. Examples thereof include those hydrolyzed by alkali, enzyme, and the like.

(Polymer compound)
Examples of the polymer compound include an anionic polymer such as a cationized polymer and a carboxyvinyl polymer, and a water-soluble polymer. Specifically, examples of the cationized polymer include cationized cellulose, cationized guar gum, and cationized starch. Cationized polysaccharides, dimethyldiallylammonium chloride polymers (polyquaternium-6, such as Marquat 100; Nalco), dimethyldiallylammonium chloride / acrylamide copolymers (polyquaternium-7, such as Marquat 550; Nalco), quaternized Examples include water-soluble polymers such as arabic gum, xanthan gum, carrageenan, pectin, agar, starch, and alge colloid (brown algae extract), and microbial polymers such as dextran and pullulan. Starch polymers such as carboxymethyl starch and methylhydroxypropyl starch, cellulose polymers such as methylcellulose, ethylcellulose, nitrocellulose and hydroxyethylcellulose, alginic acid polymers such as sodium alginate, vinyl polymers such as carboxyvinyl polymer Etc. are exemplified.

(PH buffer component)
The pH buffer component comprises an acid component that is an inorganic acid or an organic acid, and an alkali component that is an inorganic alkali or an organic alkali. In particular, those composed of an organic acid and an organic alkali are preferred. Examples of the organic acid include hydroxycarboxylic acid (glycolic acid, lactic acid, malic acid, citric acid, tartaric acid and the like) and dicarboxylic acid (succinic acid and the like). Examples of the organic alkali include volatile alkali components such as morpholine and basic amino acids such as L-histidine.

(solvent)
Examples of the solvent include ethanol, isopropanol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, isoprene glycol, hexylene glycol, glycerin, diglycerin, polyethylene glycol, and polypropylene glycol.

(Other various components)
In addition to the above components, the oxidative hair dye composition of the present invention includes a humectant such as sodium pyrrolidonecarboxylate, sodium lactate, sorbitol, hyaluronic acid, urea, a stabilizer such as 8-oxyquinoline, thioglycol Antioxidants such as acids, sulfites and ascorbic acid, plant extracts, herbal extracts, preservatives, fungicides, vitamins, dyes, fragrances, pigments, UV absorbers, etc. can be contained according to the purpose. .

  Examples of the present invention and comparative examples will be described below. The technical scope of the present invention is not limited by these examples and comparative examples.

[Preparation of oxidation hair dye composition first agent]
The creamy oxidative hair dye composition 1st agent and 2nd agent of the composition which concerns on Examples 1-5 and Comparative Examples 1-5 shown in the last Table 1 were prepared in accordance with the conventional method. The numerical value which shows content of each component which comprises the 1st agent and 2nd agent which concern on these Examples and a comparative example is a description of the mass% unit in a 1st agent or a 2nd agent, respectively.

  Among the components shown in Table 1, those corresponding to the components (A), (B), (C), and (D) of the present invention are indicated as such in the margin on the left side of the table. However, among the components corresponding to the component (C), the component (C1) is indicated as “C1” in the margin on the left side of the table.

  Moreover, about the oxidation hair dye composition which concerns on each Example or each comparative example, the column of the "oiliness component meter (in 1st agent, 2nd agent mixture)" of Table 1 is the (B) component of the oily component. The total content is shown, and the “surfactant meter (in the first agent and second agent mixture)” column shows the total content of the surfactant as component (C), and “(B) / (C) The column (in the first agent and second agent mixture) indicates the value of the mass ratio B / C of the contents of the component (B) and the component (C), and “(C1) / (C) (first agent The column “in the second agent mixture” indicates the mass ratio of the content of the nonionic surfactant having an HLB value of 10 or more as the component (C1) to the content of the component (C). In these columns, first, all are numerical values when mixing the first agent and the second agent at a mass ratio of 1: 1, and in the calculation of the mass ratio of the content, Secondly, the numerical value of “(C)” is the sum of the value written as “(C)” and the value written as “(C1)” on the left side of Table 1.

[Hair dyeing power and brightness improvement effect]
The 1st agent and the 2nd agent of the oxidative hair dye composition which concern on Examples 1-5 and Comparative Examples 1-5 are mixed by mass ratio 1: 1, an oxidative hair dye composition is comprised, and it mixes with white hair. The hair was uniformly applied to a 15 cm hair bundle for human hair evaluation. After the application, the hair was left for 30 minutes at room temperature, and then rinsed and shampooed twice in a conventional manner and treated once to dry the hair. Thereafter, the hair dyeing power and lightness improving effect on the evaluation hair bundle were visually evaluated by 10 panelists under a standard light source.

  The evaluation was 5 points for “very good”, 4 points for “excellent”, 3 points for “good”, 2 points for “slightly bad”, and 1 point for “bad”. And the average value of the score of 10 panelists is calculated for each example and each comparative example. If the average value is 4.6 points or more, the rank is “5”, and the average value is 3.6 points to 4.5 points. Rank is “4” for points, rank “3” if the average value is 2.6 to 3.5 points, rank “2” if the average value is 1.6 to 2.5 points, average If the value was 1.5 points or less, the rank was “1”. Table 1 shows these ranks. In Table 1, the evaluation result of the hair dyeing power is shown in the column of “hair dyeing power”, and the evaluation result of the brightness improvement effect is shown in the column of “lightness”.

[Operability]
Ten panelists evaluated the operability of the mixture of the first agent and the second agent of the oxidative hair dye according to each example and each comparative example in a mass ratio of 1: 1. Here, “operability” means ease of application such as spreading on hair and familiarity. The evaluation was 5 points for “very good”, 4 points for “excellent”, 3 points for “good”, 2 points for “slightly bad”, and 1 point for “bad”. And the average value of the score of 10 panelists is calculated for each example and each comparative example. If the average value is 4.6 points or more, the rank is “5”, and the average value is 3.6 points to 4.5 points. Rank is “4” for points, rank “3” if the average value is 2.6 to 3.5 points, rank “2” if the average value is 1.6 to 2.5 points, average If the value was 1.5 points or less, the rank was “1”. These ranks are shown in the column “operability” in Table 1.

  According to the present invention, there is provided an oxidative hair dye composition that can impart good lightness to hair by blending a carbonate as an alkaline agent, and can also secure sufficient hair coloring power.

Claims (1)

(A) Alkaline agent containing at least carbonate, (B) Oil component, (C) At least (C1) A surfactant containing a nonionic surfactant having an HLB value of 10 or more (in the case of containing glyceryl stearate) Excluded), (D1) ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), dihydroxyethylethylenediaminediacetic acid (DHEDDA), diethylenetriaminepentaacetic acid (DTPA) and their salts, or hydrates of EDTA and HEDTA An oxidation hair dye composition containing at least one alkaline chelating agent selected from (E) and an oxidizing agent , and an oxidizing dye intermediate, wherein the content of the components (B) and (C) The mass ratio B / C is in the range of 2 to 4.5, and the blending amount of the component (D1) is in the range of 0.2 to 0.5% by mass. In certain oxidizing hair dye composition,
The oxidative hair dye composition, wherein a mass ratio of the content of the component (C1) to the content of the component (C) is 50% or more.