JP6222884B2 - Hair cosmetic composition - Google Patents

Description

  The present invention relates to a hair cosmetic composition. More specifically, the present invention relates to a hair cosmetic composition that exhibits excellent formulation stability while imparting good brightness to hair by using an alkaline agent containing at least a carbonate.

  The oxidative hair dye is applied to hair by mixing a first agent containing an oxidative dye intermediate and an alkali 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. The hair bleaching agent is constructed in the same manner as the oxidative hair dye except that it does not contain an oxidative dye intermediate, and when applied to the hair, it decomposes and decolorizes melanin contained in the hair by the above-described action.

  In the use of such oxidative hair dyes and hair bleaching agents, in recent years, there has been an increasing demand for “fashion dyeing” for the purpose of dyeing and decoloring hair with better lightness (bright shade). In order to improve the lightness of hair, it is known that blending of an alkaline agent in an oxidative hair dye or a hair bleaching agent is important.

  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 oxidative hair dyes and hair bleaching agents.

  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

  However, it is neglected that when a carbonate as an alkaline agent is added to the first agent of an oxidative hair dye or a hair bleaching agent, the stability of the emulsion preparation, which is a preferred dosage form of the first agent, in particular, the preparation stability of the cream agent is deteriorated. There was a problem that could not be done. In general, salts are known to have an action of destroying micelles of an emulsion, and this point is considered to be related to the above-described deterioration of the formulation stability.

  Therefore, the present invention provides a hair cosmetic composition that can impart good lightness to hair by blending carbonate as an alkaline agent and that is excellent in formulation stability. To do.

  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 a carbonate is blended in a hair cosmetic, and a cationized polysaccharide. It has been found that the above-mentioned problems can be solved when combined.

(Configuration of the first invention)
The composition of the first invention of the present application for solving the above problems is a hair cosmetic composition containing (A) an alkaline agent containing at least a carbonate, (B) an oil component, and (C) a surfactant, (B) It is a hair cosmetic composition in which mass ratio B / C of content of a component and (C) component exists in the range of 2.5-10, and also contains (D) cationized polysaccharide.

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

(Configuration of the third invention)
The constitution of the third invention of the present application for solving the above problem is that in the hair cosmetic composition according to the second invention, the mass ratio of the content of the component (C1) to the content of the component (C) is 50% or more. It is a hair cosmetic composition.

(Configuration of the fourth invention)
The constitution of the fourth invention of the present application for solving the above-mentioned problem is that the hair cosmetic composition according to any one of the first invention to the third invention contains (D1) cationized cellulose as the component (D). It is a hair cosmetic composition.

  Since the hair cosmetic 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 (A) component, the sufficient brightness improvement effect with respect to hair can be acquired, reducing the irritation | stimulation odor resulting from ammonia within the allowable limit.

  In addition, according to the hair cosmetic composition of the first invention, the mass ratio B / C of the content of both the oily component (B) and the surfactant (C) is 2.5. Since it mix | blends with the controlled mass ratio within the range of -10, it can be set as the cream agent which is a suitable emulsion formulation, for example, an oil-in-water emulsion. When the mass ratio B / C is less than 2.5, good dyeing and brightness as a hair dye or decoloring agent cannot be ensured due to the relative excess of the component (C). When the mass ratio B / C exceeds 10, a good emulsified preparation such as a cream cannot be obtained due to the relative shortage of the component (C).

  In addition, since the hair cosmetic composition of the first invention contains the cationized polysaccharide as the component (D), it can prevent deterioration of the stability of the preparation such as a cream based on the blending of carbonate. it can. Although the reason has not yet been fully elucidated, it is presumed that steric hindrance as a polymer of a cationized polysaccharide that is easily adsorbed by micelles may suppress the destruction of micelles by carbonates.

  As in the hair cosmetic composition of the second invention, 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 ( When it is contained as at least a part of component C), the hair cosmetic composition can be made into a particularly good emulsified preparation such as a cream.

  When the mass ratio of the content of the component (C1) to the content of the component (C) is 50% or more like the hair cosmetic composition of the third invention, the effect of the second invention is particularly ensured. Is done.

  In the hair cosmetic composition of the fourth invention, as at least part of the component (D), the cationized cellulose as the component (D1) is contained, so that the stability of the formulation such as a cream based on the formulation of the carbonate is improved. Deterioration can be prevented particularly remarkably.

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

[Hair cosmetic composition]
The hair cosmetic composition according to the present invention is used as the first agent of an oxidative hair dye or the first agent of a hair bleaching agent, and (A) an alkaline agent containing at least a carbonate, (B) An oil component, (C) a surfactant, the mass ratio B / C of the content of the component (B) and the component (C) is in the range of 2.5 to 10, and (D) cationized poly Contains sugars. The mass ratio B / C is more preferably in the range of 3-8.

  The hair cosmetic composition used as the first agent of the oxidative hair dye contains an oxidative dye intermediate as an essential component in addition to the components (A) to (D) described above. Blended. These oxidative dye intermediates and direct dyes are not blended in the hair cosmetic composition used as the first agent of the hair bleaching agent.

  The hair cosmetic composition of the present invention used as the first agent for oxidative hair dyes and hair bleaching agents is applied to the hair by mixing it with the second agent at an appropriate mass ratio at the time of use. The type of the second agent is not limited as long as it contains an oxidizing agent, and an appropriate one selected from second agents having various known compositions can be used. Furthermore, in addition to said 1st agent and 2nd agent, the 3rd agent containing an oxidation adjuvant etc. can also be mixed at the time of use.

  In general, as a dosage form of a hair cosmetic composition which is the first agent of an oxidative hair dye or a hair bleaching agent, various known dosage forms such as gel, liquid, foam, paste, cream and the like are available. Although it is selected, an appropriate dosage form can be selected also in the hair cosmetic composition of the present invention. Preferably, the hair cosmetic composition of the present invention is in the form of a paste or cream having a form of an oil-in-water emulsion, especially a cream. Moreover, at the time of use, after mixing with a 2nd agent etc., it is good also as what is used by foaming using a former container.

[Essential component of hair cosmetic 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 alkaline agent in the hair cosmetic composition is not limited, but it is preferable to contain the alkaline agent so that the pH of the hair cosmetic composition is about 8.5 to 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 hair cosmetic composition is not limited as long as the above-described mass ratio B / C is in the range of 2.5 to 10, but is preferably about 3 to 8% 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 hair cosmetic composition is not limited as long as the above-described mass ratio B / C is in the range of 2.5 to 10, but is preferably about 3 to 8% 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)
(D) A component is 1 or more types of a cationized polysaccharide. The kind of the cationized polysaccharide is not limited, and examples thereof include cationized cellulose, cationized guar gum, and cationized starch, and cationized cellulose is particularly preferable.

  As cationized cellulose, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose (polyquaternium-), which is a polymer of a quaternary ammonium salt obtained by adding glycidyltrimethylammonium chloride to hydroxyethylcellulose. 10. For example, Kachinal HC-100, HC-200, LC-100, LC-200; Toho Chemical Industry Co., Ltd., Cellcoat SC-230M; Akzo Nobel, Leogard G, GP; Lion Co., Ltd. Polymer JR-125, JR-400, JR-30M, LR-400, LR-30M; Amerchol), hydroxyethylcellulose / dimethyldiallylammonium chloride copolymer (polyquaternium-4, for example, Cellcoat L-200; Akzo Nobel), O- [2-hydroxy-3- (lauryl di) chloride Chiruanmonio) propyl] hydroxyethyl cellulose and the like.

  Examples of the cationized guar gum include O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum and the like.

  Examples of the cationized starch include hydroxypropyltrimonium chloride starch and the like.

  The content of the cationized polysaccharide in the hair cosmetic composition is not necessarily limited, but is preferably about 0.01 to 2% by mass, particularly about 0.1 to 1% by mass.

(dye)
In the hair cosmetic composition used as the first agent of the oxidative hair dye, 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 a hair cosmetic 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 hair cosmetics 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 hair cosmetics composition suitably as needed.

[Other ingredients in hair cosmetic composition]
In addition to the above essential components, each component described below is optionally blended in the hair cosmetic 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 cationized polymers other than cationized polysaccharides, anionic polymers such as carboxyvinyl polymers, and water-soluble polymers. Specifically, dimethyldiallyl as a cationized polymer other than cationized polysaccharides. Ammonium chloride polymer (polyquaternium-6, such as Marquat 100; Nalco), dimethyldiallylammonium chloride / acrylamide copolymer (Polyquaternium-7, such as Marquat 550; Nalco), quaternized polyvinylpyrrolidone, etc. are exemplified and water soluble Plant polymers such as gum arabic, xanthan gum, carrageenan, pectin, agar, starch, alge colloid (brown algae extract), microbial polymers such as dextran, pullulan, carboxymethyl starch, methylhydroxy Examples include starch polymers such as propyl starch, cellulose polymers such as methylcellulose, ethylcellulose, nitrocellulose, and hydroxyethylcellulose, alginic acid polymers such as sodium alginate, and vinyl polymers such as carboxyvinyl polymer.

(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-mentioned components, the hair cosmetic composition of the present invention includes a humectant such as sodium pyrrolidonecarboxylate, sodium lactate, sorbitol, hyaluronic acid, urea, a stabilizer such as 8-oxyquinoline, thioglycolic acid, sulfurous acid. For purposes such as salts, antioxidants such as ascorbic acid, sequestering agents such as disodium edetate, plant extracts, herbal extracts, preservatives, fungicides, vitamins, dyes, fragrances, pigments, UV absorbers, etc. It can be contained accordingly.

  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 hair cosmetic composition]
Creamy hair cosmetic compositions having compositions according to Examples 1 to 6 and Comparative Examples 1 to 4 shown in Table 1 at the end were prepared according to a conventional method. The numerical values indicating the content of each component constituting the hair cosmetic composition according to these examples and comparative examples are notation in mass% units and are numerical values indicating the content in the hair cosmetic composition. It is not a numerical value indicating the content at the time of mixing with the second agent described later. Moreover, although notation is abbreviate | omitted in Table 1, the residual amount is occupied with water also in any Example and comparative example.

  Among the components shown in Table 1, those corresponding to the component (B) or the component (C) of the present invention are indicated as such in the margin on the left side of the table. For the hair cosmetic composition according to each example or each comparative example, the column of “Oil component meter” in Table 1 shows the total content of the oil component as component (B). "" Indicates the total content of the surfactant as component (C), and "(B) / (C)" indicates the mass ratio B / C of the contents of component (B) and component (C). Indicates the value of. In calculating the value of B / C, the third decimal place is rounded off.

[Formulation stability]
After preparing hair cosmetic compositions according to Examples 1 to 6 and Comparative Examples 1 to 4, respectively, after putting them in glass bottles and storing them in a thermostatic bath at 50 ° C. for 1 month, their separation state and presence or absence of looseness It was judged whether stability was good by evaluating visually. Evaluation 5 with little separation or sensation, evaluation 4 with little separation or sensation 4, evaluation 3 with slight separation or sensation 3, evaluation with slight separation or sensation The product was evaluated as 2, and the material with a considerable feeling of separation or looseness was rated as 1. The evaluation results are shown in the “stability” column of Table 1. The “feeling of dimness” is an index for evaluating the state of the cream-form preparation from the appearance, and means that the cream becomes uneven and a small lump is visible.

[Lightness improvement effect on hair]
The above-described hair cosmetic compositions according to Examples 1 to 6 and Comparative Examples 1 to 4 were used as the first agent for the hair bleaching agent, and these were mixed with the creamy second agent having the following composition in a mass ratio of 1: 1, respectively. Thus, a hair bleaching agent was constituted and uniformly applied to a 15 cm hair bundle for evaluation of black human hair.
(Composition of the second agent)
Hydrogen peroxide solution (35%): 16.5% by mass
Lanolin: 0.1% by mass
Hydroxyethane diphosphonic acid: 0.1% by mass
Hydroxyethanediphosphonate tetrasodium: 0.2% by mass
Phenoxyethanol: 0.1% by mass
Cetanol: 0.7% by mass
POE (2) stearyl ether: 0.5% by mass
POE (30) cetyl ether: 0.4% by mass
Stearyltrimethylammonium chloride: 0.1% by mass
Water: remaining amount After applying the hair bleaching agent to the evaluation hair bundle, it was left at room temperature for 20 minutes, followed by two rinses and shampoos, and one treatment to dry the hair. Thereafter, the brightness improvement effect on the evaluation hair bundle was 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.

  According to the present invention, there is provided a hair cosmetic composition that can impart good lightness to hair by blending a carbonate as an alkaline agent and that is excellent in formulation stability.

Claims (3)

(A) An oil-in-water emulsion type emulsion containing at least a carbonate-containing alkaline agent, (B) an oil component, and (C) a surfactant, and comprising an oxidative hair dye, a hair bleaching agent or a hair decoloring agent. A hair cosmetic composition used as a first agent, wherein the mass ratio B / C of the content of the component (B) and the component (C) is in the range of 3.85 to 10, and the component (C) (C1) A hair cosmetic composition comprising a nonionic surfactant having an HLB value of 10 or more, and further comprising (D) a cationized polysaccharide. The hair cosmetic composition according to claim 1, wherein the mass ratio of the content of the component (C1) to the content of the component (C) is 50% or more. The hair cosmetic composition according to claim 1 or 2 , comprising (D1) cationized cellulose as the component (D).