JP7162333B2 - Hair bleaching and destaining composition - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act A destaining agent composition was disclosed (disclosure date: July 25, 2018).

The present invention relates to a hair bleaching and destaining composition containing a persulfate.

Hair bleaching and destaining compositions are generally known that exhibit their effects by mixing a plurality of agents. As such a hair bleaching/destaining composition, for example, a hair bleaching/destaining agent composed of a first agent containing an alkaline agent and a second agent containing an oxidizing agent such as hydrogen peroxide. Compositions are known. The alkaline agent promotes the action of the oxidizing agent contained in the second agent and swells the hair to improve the bleaching and destaining properties of the hair.

Conventionally, from the viewpoint of improving bleaching and destaining properties, hair bleaching and destaining compositions using persulfate as an oxidizing agent have been known. For example, Patent Document 1 discloses a hair bleaching and destaining composition that uses ammonia or the like as an alkaline agent, hydrogen peroxide as an oxidizing agent, and sodium persulfate or the like as an oxidizing aid. From the viewpoint of improving the storage stability of an agent containing an alkaline agent and an agent containing an oxidizing agent such as hydrogen peroxide, the persulfate is blended in an agent other than these agents.

JP 2013-147467 A

However, when a viscosity-increasing polymer is added to a persulfate-containing agent from the viewpoint of improving the usage characteristics, the heat generated when the persulfate and water such as water droplets react with each other is retained, and the retained heat is maintained. Therefore, there is a problem that heat generation of persulfate and water droplets is further accelerated. On the other hand, when the amount of persulfate compounded is reduced, there is a problem that decolorization and destaining properties are lowered.

An object of the present invention is to provide a hair bleaching and destaining composition containing a persulfate, which has excellent hair bleaching and destaining properties and is capable of suppressing heat generation. be.

The present invention has found that in a hair bleaching/decoloring agent composition containing a persulfate and a thickening polymer in a third agent, heat generation can be suppressed by regulating the pH of the third agent within a predetermined range. It is based on In addition, when using a solubilizing agent such as water, the numerical value of mass % indicating the content of the component is the numerical value in the dosage form including them.

In order to achieve the above object, in one aspect of the present invention, a first agent containing an alkaline agent, a second agent containing an oxidizing agent, (A) a persulfate, and (B) a nonionic as a thickening polymer A hair bleaching and destaining composition comprising a third agent containing at least one selected from a polymer and an anionic polymer, wherein the third agent dissolves in water at a concentration of 1% by mass at 25 ° C. is characterized by having a pH of 7 to 9.

The third agent may further contain (C) an acid.
The content of the (C) acid in the third agent may be 0.1 to 10% by mass.
The ratio of the pH at 25° C. when the first agent is dissolved in water at a concentration of 1% by mass to the pH at 25° C. when the third agent is dissolved in water at a concentration of 1% by mass is 1 to 1 .5.

When the hair bleaching/destaining composition is used, the pH at 25° C. when dissolved in water at a concentration of 1% by mass may be 8.5 to 10.

ADVANTAGE OF THE INVENTION According to this invention, it is excellent in bleaching and destaining property of hair, and also can suppress heat_generation|fever.

Hereinafter, one embodiment of the hair bleaching and destaining composition of the present invention will be described. Specific examples of the hair bleaching and destaining composition include, for example, a three-agent hair bleaching and destaining composition containing an alkaline agent and an oxidizing agent, a four-agent or more hair bleaching and destaining composition, and the like. is mentioned. The components of each hair bleaching/destaining composition are exemplified below.

<Three-agent type hair bleaching/destaining composition>
A three-agent hair bleaching/destaining composition comprises, for example, a first agent containing at least an alkaline agent, a second agent containing at least an oxidizing agent, at least (A) a persulfate, and (B) an oxidizing agent. It is composed of a third agent containing at least one selected from nonionic polymers and anionic polymers as a viscous polymer.

(Third agent of three-agent hair bleaching/destaining composition)
The third agent preferably contains (C) an acid in addition to (A) the persulfate and (B) the thickening polymer described above. (A) The persulfate improves the oxidizing action and further improves the bleaching and destaining properties of the hair after hair treatment. (A) Specific examples of the persulfate include sodium persulfate, potassium persulfate, and ammonium persulfate. Among these specific examples, only one type may be contained alone, or two or more types may be combined and contained. Among these, ammonium persulfate and potassium persulfate are preferred, and ammonium persulfate is more preferred, from the viewpoint of heat generation suppression.

The lower limit of the content of component (A) in the third agent is appropriately set, but is preferably 30% by mass or more, more preferably 40% by mass or more, and still more preferably 43% by mass or more. When the content of component (A) is 30% by mass or more, decolorization and destaining properties can be further improved.

The upper limit of the content of component (A) in the third agent is appropriately set, but is preferably 70% by mass or less, more preferably 60% by mass or less, and even more preferably 55% by mass or less. When the content of component (A) is 70% by mass or less, heat generation caused by water droplets or the like can be further suppressed.

The lower limit of the content of component (A) in the hair bleaching and destaining composition at the time of use, that is, in the mixture of the first to third agents, is set appropriately, but is preferably 0.5% by mass or more. , more preferably 1% by mass or more, and still more preferably 2% by mass or more. (A) When the content of the component is 0.5% by mass or more, decolorization and destaining properties can be further improved.

The upper limit of the content of component (A) in the mixture is appropriately set, but is preferably 20% by mass or less, more preferably 15% by mass or less, and even more preferably 10% by mass or less. (A) When the content of the component is 20% by mass or less, it is possible to suppress a decrease in the feel of the hair.

At least one type of thickening polymer selected from nonionic polymers and anionic polymers as the component (B) increases usage characteristics, particularly viscosity, and exerts an effect of suppressing dripping. It also improves the viscosity stability of the mixture over time during use. Among these, nonionic polymers are preferred from the viewpoint of superior touch feeling to anionic polymers. A known nonionic thickening polymer can be used as the nonionic polymer, and either natural or synthetic polymers can be used. Specific examples of nonionic polymers include, for example, polyvinylcaprolactam, polyvinylpyrrolidone (PVP), (PVP/VA) copolymer, polyvinyl alcohol, polyvinyl butyral, cellulose derivatives such as hydroxyethylcellulose, hydroxypropylethylcellulose, and hydroxypropylmethylcellulose, polyethylene glycol, Examples include high polymer polyethylene glycol, dextrin, guar gum, starch, pullulan and the like. Among these, cellulose derivatives such as hydroxyethyl cellulose, hydroxypropylethyl cellulose, and hydroxypropylmethyl cellulose are preferable from the viewpoint of dripping suppression, and hydroxyethyl cellulose is more preferable from the viewpoint of raw material cost and excellent dripping suppression effect.

Any known anionic thickening polymer can be used as the anionic polymer, and either natural or synthetic polymers can be used. Specific examples of natural anionic polymers include xanthan gum, carrageenan, sodium alginate, pectin, furcellan, gum arabic, gum gum, gum karaya, gum tragacanth, agar powder, and the like. Specific examples of the semi-synthetic polymer include carboxymethyl cellulose obtained by carboxymethylating cellulose.

Specific examples of synthetic anionic polymers include, for example, polymers or copolymers obtained by polymerizing acidic vinyl monomers or salts thereof. Specific examples of acidic vinyl monomers include compounds having an acidic group, such as a carboxyl group, a sulfonic acid group, and a phosphoric acid group, and a polymerizable vinyl group. Such compounds include, for example, unsaturated monobasic acids, unsaturated dibasic acids, and monoesters thereof.

Specific examples of the viscosity-increasing polymer described above may be used alone or in combination of two or more.
The lower limit of the content of component (B) in the third agent is appropriately set, but is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more, and particularly preferably It is 4% by mass or more. When the content of the component (B) is 0.1% by mass or more, it is possible to exhibit usage properties, particularly an effect of suppressing dripping. On the other hand, the upper limit of the content of component (B) is appropriately set, but is preferably 30% by mass or less, more preferably 20% by mass or less, and still more preferably 12% by mass or less. When the content of the component (B) is 30% by mass or less, heat generation when the persulfate comes into contact with water can be further suppressed. In addition, it is possible to improve the miscibility with each agent at the time of use.

The lower limit of the content of component (B) in the mixture is appropriately set, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, particularly Preferably, it is 0.3% by mass or more. When the content of the component (B) is 0.01% by mass or more, it is possible to exhibit usage characteristics, particularly an effect of suppressing dripping. On the other hand, the upper limit of the content of component (B) is appropriately set, but is preferably 3% by mass or less, more preferably 2% by mass or less, and still more preferably 1.5% by mass or less. When the content of component (B) is 3% by mass or less, viscosity stability during use can be further improved.

(C) The acid further suppresses the heat generated when the persulfate is in contact with water. In addition, the feeling after hair treatment is further improved. (C) The acid may be either an inorganic acid or an organic acid. Specific examples of inorganic acids include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid and boric acid. Further, specific examples of phosphoric acid include orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, metaphosphoric acid and the like. Specific examples of organic acids include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, benzoic acid, and acidic amino acids. Specific examples of acidic amino acids include aspartic acid, glutamic acid, pyrrolidonecarboxylic acid and the like. Among these specific examples, only one type may be contained alone, or two or more types may be combined and contained. Among these, acids having a valence of 2 or more are preferable, citric acid, tartaric acid, and phosphoric acid are more preferable, and citric acid and tartaric acid are still more preferable, from the viewpoint of being excellent in heat generation suppressing effect and touch feeling improving effect.

The lower limit of the content of component (C) in the third agent is appropriately set from the viewpoint of pH adjustment, but is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and still more preferably 1 % by mass or more, particularly preferably 2% by mass or more, even more preferably 3% by mass or more, and most preferably 4% by mass or more. When the content is 0.1% by mass or more, the heat generation suppressing effect and the feel can be further improved. The upper limit of the content of component (C) in the third agent is appropriately set from the viewpoint of pH adjustment, but is preferably 10% by mass or less, more preferably 9% by mass or less, and still more preferably 8% by mass or less. be. When the content is 10% by mass or less, the pH of the mixture can be adjusted to an appropriate range, and decolorization and destaining properties can be further improved.

The lower limit of the content of component (C) in the mixture is appropriately set from the viewpoint of pH control, but is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and still more preferably 0.1. % by mass or more. When the content is 0.01% by mass or more, the feel is further improved. The upper limit of the content of component (C) in the mixture is appropriately set from the viewpoint of pH control, but is preferably 1% by mass or less, more preferably 0.9% by mass or less, and still more preferably 0.8% by mass. It is below. When the content is 1% by mass or less, the pH of the mixture is adjusted to an appropriate range, and the decolorization and destaining properties are further improved.

The lower limit of the value of the valence of component (C) in the third agent x the content (% by mass) (when there are multiple components (C), the sum of the respective values) is set as appropriate from the viewpoint of pH adjustment. is preferably 2 or more, more preferably 5 or more, and still more preferably 10 or more. When the value is 2 or more, the heat generation suppressing effect and feel can be further improved. The upper limit of the value of the valence of component (C) in the third agent x content (% by mass) is appropriately set from the viewpoint of pH control, but is preferably 30 or less, more preferably 25 or less, and still more preferably 20 or less. When this value is 30 or less, the pH of the mixture can be adjusted to an appropriate range, and decolorization and destaining properties can be further improved.

The third agent is defined in a predetermined pH range in order to improve the effect of suppressing heat generation when the persulfate, which is a compounding component, comes into contact with water, and to improve the feeling after hair treatment and the bleaching/decoloring property. The third agent has a pH of 7 to 9, preferably 7.2 to 8.8, more preferably 7.5 to 8.5, particularly preferably 7 at 25° C. when dissolved in water at a concentration of 1% by mass. .6 to 8.2. When the pH is 7 or more, decolorization and destaining properties can be improved. Moreover, when the pH is 9 or less, the exothermic suppressing effect and the feel can be improved.

From the viewpoint of the stability of the persulfate, the dosage form of the third agent is preferably solid at 25°C. Examples of solid forms include powders, granules, tablets, and the like. It should be noted that the dosage form at 25° C. may be prepared in a liquid form, for example, a liquid form containing substantially no water, as long as the effect of the present invention and the storage stability of the ingredients are not impaired. In addition, "substantially contains no water" in the present embodiment means "does not contain water separately", and does not exclude the addition of a trace amount of water contained in each compounding component. do not have. In addition, in the case of a solid dosage form, dispersants such as metal stearates such as calcium stearate and magnesium stearate, sodium sulfate, talc, lactose, and low-substituted hydroxypropyl cellulose may be blended. Among these specific examples, only one type may be used, or two or more types may be used in combination.

The third agent may optionally include ingredients other than those mentioned above, such as alkali agents, water-soluble polymers, oily ingredients, polyhydric alcohols, surfactants, pH adjusters other than those mentioned above, sugars, preservatives, and stabilizers. , plant extracts, crude drug extracts, vitamins, fragrances, antioxidants, chelating agents, ultraviolet absorbers, and the like.

The alkaline agent is blended from the viewpoint of adjusting the pH of the third agent. Alkaline agents that are solid at 25° C. are applied, and specific examples thereof include ammonium salts, silicates, carbonates, hydrogen carbonates, metasilicates, sulfates, chlorides, phosphates, Organic amines, basic amino acids, hydroxides of alkali metals or alkaline earth metals, and the like can be mentioned. Specific examples of silicates include sodium silicate, potassium silicate, and calcium silicate. Specific examples of carbonates include sodium carbonate, ammonium carbonate, magnesium carbonate and the like. Specific examples of hydrogencarbonate include sodium hydrogencarbonate and ammonium hydrogencarbonate. Specific examples of metasilicates include sodium metasilicate and potassium metasilicate. Specific examples of sulfates include ammonium sulfate and the like. Specific examples of chlorides include, for example, ammonium chloride. Specific examples of the phosphate include ammonium dihydrogen phosphate, diammonium hydrogen phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate, and trisodium phosphate. Specific examples of organic amines include guanidine and the like. Specific examples of basic amino acids include arginine and lysine. Specific examples of hydroxides of alkali metals or alkaline earth metals include sodium hydroxide and potassium hydroxide. Among these alkaline agents, only one type may be contained alone, or two or more types may be combined and contained. Among these, carbonates and ammonium salts are preferable, and ammonium salts are particularly preferably applied, from the viewpoint of being excellent in the effect of improving the brightness of hair. The content of the alkaline agent in the third agent is preferably such that the pH at 25° C. is in the range of 7 to 9 when the third agent is dissolved in water at a concentration of 1% by mass. .

As water-soluble polymers, for example, both cationic and amphoteric, natural or synthetic polymers can be used. Although such a water-soluble polymer does not have a thickening effect, it does not preclude the addition of a predetermined amount to the hair bleaching and destaining composition from the viewpoint of improving the feel of the hair.

Specific examples of the cationic polymer include cationic cellulose derivatives such as O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride, cationic starch, cationic guar gum, and diallyl quaternary ammonium salts. Examples include polymers or copolymers, quaternary polyvinylpyrrolidone, and the like.

Specific examples of amphoteric polymers include acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer, acrylic acid/methacrylamidopropyltrimethylammonium chloride/methyl acrylate copolymer, and acrylic acid/acrylic acid/methacrylamidopropyltrimethylammonium chloride. A copolymer etc. are mentioned. These may be contained singly or in combination of two or more.

The oily component imparts moisture to the hair. Therefore, the hair bleaching/destaining composition may contain an oily component within a range that does not impair the effects of the present invention. Examples of oily components include oils and fats, waxes, hydrocarbons, ester oils, higher alcohols, higher fatty acids, alkylglyceryl ethers, and silicones.

Specific examples of fats and oils include Argania spinosa kernel oil, olive oil (olive oil), camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, and rice bran. oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, coconut oil, evening primrose oil, apricot kernel oil, persic oil, peach kernel oil, palm oil, egg yolk oil and the like. Specific examples of waxes include lanolin, beeswax, candelilla wax, carnauba wax, and jojoba oil. Specific examples of hydrocarbons include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, petrolatum, liquid paraffin, light isoparaffin, light liquid isoparaffin, isoparaffin, and α-olefin. Examples include oligomers and synthetic squalane.

Specific examples of ester oils include diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl palmitate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-palmitate Ethylhexyl, octyldodecyl ricinoleate, fatty acid cholesteryl/lanosteryl having 10 to 30 carbon atoms, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, caprin cetyl acid, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, cetyl 2-ethylhexanoate, hydrogenated castor oil isostearate and the like.

Specific examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, arachyl alcohol, behenyl alcohol, 2-octyldodecanol, lauryl alcohol, and myristyl alcohol. , decyltetradecanol, lanolin alcohol, and the like.

Specific examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid and lanolin fatty acid. Specific examples of alkyl glyceryl ethers include batyl alcohol, chimyl alcohol, selachyl alcohol, and isostearyl glyceryl ether.

Specific examples of silicone include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, highly polymerized silicone, and polyether-modified silicone (e.g., (PEG/PPG/butylene/dimethicone) copolymer), amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, fluorine-modified silicone and the like. Among these oily components, only one type may be contained alone, or two or more types may be combined and contained.

Polyhydric alcohols include, for example, glycol and glycerin. Glycols include, for example, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol and the like. Glycerin includes, for example, glycerin, diglycerin, polyglycerin and the like. Among these polyhydric alcohols, only one type may be contained alone, or two or more types may be combined and contained.

The surfactant emulsifies or solubilizes the hair bleaching and destaining composition at the time of use as an emulsifier or a component for solubilizing each component, adjusts the viscosity, and improves the viscosity stability. Therefore, the hair bleaching/destaining composition may contain a surfactant within a range that does not impair the effects of the present invention. Surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.

Specific examples of anionic surfactants include alkyl ether sulfates, alkyl sulfates, alkyl ether sulfates, alkenyl ether sulfates, alkenyl sulfates, olefinsulfonates, alkanesulfonates, saturated or unsaturated Fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphoric acid mono- or diester type surfactants, sulfosuccinic acid esters, N-alkyloylmethyl taurate salts, and these and derivatives thereof. Specific examples of counter ions for the anionic groups of these surfactants include sodium ions, potassium ions, triethanolamine, and the like. More specifically, examples of alkyl ether sulfate salts include polyoxyethylene (hereinafter referred to as POE) sodium lauryl ether sulfate. Specific examples of alkyl sulfates include sodium lauryl sulfate, sodium cetyl sulfate, and the like. Specific examples of alkyl sulfate derivatives include POE sodium lauryl sulfate and the like. Specific examples of sulfosuccinic acid esters include disodium lauryl sulfosuccinate. Specific examples of N-alkyloylmethyltaurate salts include sodium N-stearoyl-N-methyltaurate.

Specific examples of cationic surfactants include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, alkyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, Ethyl sulfate lanolin fatty acid aminopropylethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, methacryloyloxyethyltrimethylammonium chloride, behenyltrimethylammonium methylsulfate, behenyldimethylamine, behenate diethylaminoethylamide, behenate dimethylaminopropylamide, behenic acid dimethylaminoethylamide, stearyldimethylamine, palmitoxypropyldimethylamine, stearoxypropyldimethylamine, stearic acid dimethylaminopropylamide and the like. Specific examples of alkyltrimethylammonium chloride include behenyltrimethylammonium chloride and aralkyltrimethylammonium chloride.

Specific examples of amphoteric surfactants include cocobetaine, lauramidopropylbetaine, cocamidopropylbetaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidopropylbetaine, laurylbetaine (lauryldimethylaminoacetic acid betaine), lauryl and sodium aminopropionate.

Specific examples of nonionic surfactants include ether type nonionic surfactants, ester type nonionic surfactants, alkyl glucosides and the like. Specific examples of ether-type nonionic surfactants include POE cetyl ether (ceteth), POE stearyl ether (steareth), POE behenyl ether, POE oleyl ether (oleth), POE lauryl ether (laureth), POE octyldodecyl ether, POE hexyldecyl ether, POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, POE polyoxypropylene cetyl ether, POE polyoxypropylene decyltetradecyl ether and the like.

Specific examples of ester-type nonionic surfactants include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerin monostearate, POE glycerin monomyristate, POE sorbitol tetraoleate, POE sorbitol hexastearate, POE sorbitol monolaurate, POE sorbitol beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol monolaurate, lipophilic monooleic acid Glycerin, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid esters, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate, POE-reduced lanolin, and the like.

Specific examples of alkyl glucosides include alkyl (C8-16) glucoside, POE methyl glucoside, POE methyl dioleate glucoside, and the like. Among specific examples of these surfactants, one type may be contained alone, or two or more types may be combined and contained.

A pH adjuster may be added to adjust the pH of the mixture at the time of use. Examples of pH adjusters include salts of inorganic acids and salts of organic acids. Specific examples of salts include sodium salts, potassium salts, ammonium salts and the like. Specific examples of sugars include monosaccharides such as glucose and galactose, disaccharides such as maltose, sucrose, fructose and trehalose, and sugar alcohols. Specific examples of antiseptics include paraben, methylparaben, sodium benzoate and the like. Specific examples of stabilizers include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid and the like. Specific examples of antioxidants include ascorbic acids and sulfites.

Depending on the amount added, the chelating agent changes the pH at 25° C. when the third agent is dissolved in water at a concentration of 1 mass %. Therefore, it may be used in place of (C) the acid and pH adjuster described above, or in combination with those components. Specific examples of chelating agents include, for example, edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and its salts, ethylenediaminehydroxyethyltriacetic acid and its salts, and hydroxyethane. diphosphonic acid (HEDP) and its salts, and the like.

(1st agent of 3-agent hair bleaching and destaining composition)
The first agent contains an alkaline agent. The alkaline agent contained in the first agent functions to promote the action of the oxidizing agent contained in the second agent and/or the persulfate contained in the third agent, thereby improving the bleaching and destaining properties of the hair. do. As the alkali agent, in addition to those listed in the column of the third agent that are solid at 25°C, those that are liquid at 25°C, such as ammonia, alkanolamine, 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol, 1-amino-2-propanol (MIPA), and the like can be used. Specific examples of alkanolamine include monoethanolamine and triethanolamine. Among the alkali agents, ammonia and ammonium salts are preferably applied from the viewpoint of excellent effect of improving hair bleaching and destaining properties.

The content of the alkaline agent in the mixture is preferably such that the pH of the mixture is in the range of 8.5 to 10, more preferably in the range of pH 9 to 9.5. By adjusting the pH of the mixture to 8.5 or more, the action of the oxidizing agent contained in the second agent and/or the persulfate contained in the third agent can be promoted. Thereby, decolorization and destaining properties are further improved. By adjusting the pH of the mixture to 10 or less, damage to hair due to application of the mixture can be suppressed. This further improves the feel of the hair. The pH of the mixture is measured at 25° C. when the mixture is dissolved in water at a concentration of 1% by mass.

Although the pH of the first agent is not particularly limited, it has a predetermined relationship with the pH of the third agent from the viewpoint of achieving both the heat generation suppressing effect, the feel after hair treatment, and the bleaching and destaining properties. is preferred. The ratio of the pH at 25° C. when the first agent is dissolved in water at a concentration of 1% by mass to the pH at 25° C. when the third agent is dissolved in water at a concentration of 1% by mass (first agent pH/ The third agent pH) is preferably 1 to 1.5, more preferably 1.1 to 1.5, and still more preferably 1.2 to 1.3. When the dosage form of the first agent uses a solubilizer such as water, the pH of the dosage form including the solubilizer shall be measured at a concentration of 1% by mass. By setting the amount within such a range, it is possible to achieve both the exothermic suppressing effect when the persulfate, which is a compounding component, comes into contact with water, the feel after hair treatment, and the effects of bleaching and destaining properties.

The 1st agent can mix|blend the viscosity-increasing polymer or water-soluble polymer mentioned above. Among these, the viscosity-increasing polymer increases the usage characteristics, particularly the viscosity, and exerts an effect of suppressing dripping. In addition, nonionic polymers are superior in feel to the hair compared to anionic polymers. However, when the dosage form of the first agent is liquid, the viscosity of the first agent increases and the miscibility with other agents may decrease. The viscous polymer is preferably 1 wt% or less, more preferably 0.5 wt% or less. The first agent may contain components that are generally contained in hair bleaching/destaining compositions and that do not inhibit the actions of the components described above. For example, the ingredients contained in the above-mentioned third agent may be contained as appropriate within a range that does not impair the effects of the present invention.

The dosage form of the first agent is not particularly limited, and specific examples thereof include liquid forms such as aqueous solutions and milky lotions, gel forms, foam forms, cream forms, and solid forms at 25°C. Moreover, in the case of a solid dosage form, a dispersant may be blended. Moreover, in the case of a liquid dosage form, a solubilizer may be blended. Specific examples of solubilizers include organic solvents (solvents). Specific examples of organic solvents include ethanol, n-propanol, isopropanol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamic alcohol, anise alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, ethylene glycol phenyl ether (phenoxyethanol), phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate, alkyl ether and the like. Among these solubilizers, only one kind may be contained alone, or two or more kinds may be contained in combination. It can also be an aerosol, a non-aerosol, etc. In the case of a non-aerosol, it can further take various forms such as a squeeze foamer type and a pump foamer type. Also, in the case of aerosol, a known propellant and foaming agent can be applied. Specific examples of the propellant or foaming agent include liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen gas, carbon dioxide gas, and the like.

(Second agent of three-agent hair bleaching/destaining composition)
In addition to the oxidizing agent, the second agent can also contain the above-described solubilizer and the like. The oxidizing agent improves the bleaching properties of melanin contained in hair. As the oxidizing agent, from the viewpoint of improving storage stability, an oxidizing agent other than the persulfate compounded in the third agent is preferably applied. Specific examples of oxidizing agents include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, magnesium peroxide, and barium peroxide. , calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adducts, phosphate hydrogen peroxide adducts, pyrophosphate hydrogen peroxide adducts, and the like. Among specific examples of these oxidizing agents, only one type may be contained alone, or two or more types may be combined and contained.

The content of the oxidizing agent in the second agent is appropriately set, but is preferably 0.1% by mass or more, more preferably 2.0% by mass or more, and still more preferably 3.0% by mass or more. is. When the content of the oxidizing agent is 0.1% by mass or more, the decolorization of melanin can be further improved. Also, the content of the oxidizing agent in the second agent is preferably 15.0% by mass or less, more preferably 9.0% by mass or less, and even more preferably 6.0% by mass or less. When the content of the oxidizing agent is 15.0% by mass or less, hair damage and the like can be suppressed.

When hydrogen peroxide is added as an oxidizing agent to the second agent, the second agent preferably contains a stabilizing agent such as sodium stannate, ethylene glycol phenyl ether (phenoxyethanol ), hydroxyethanediphosphonic acid, or a salt thereof. Hydroxyethanediphosphonates include, for example, tetrasodium hydroxyethanediphosphonate and disodium hydroxyethanediphosphonate. The second agent may contain components that are generally contained in hair bleaching/destaining compositions and that do not inhibit the actions of the components described above. For example, the ingredients contained in the first and third agents described above may be contained as appropriate within a range that does not impair the effects of the present invention.

The dosage form of the second agent is not particularly limited, and specific examples thereof include liquid forms such as aqueous solutions and milky lotions, gel forms, foam forms, cream forms, and solid forms at 25°C. It can also be an aerosol, a non-aerosol, etc. In the case of a non-aerosol, it can further take various forms such as a squeeze foamer type and a pump foamer type. Also, in the case of aerosol, a known propellant and foaming agent can be applied. Moreover, in the case of a solid dosage form, a dispersant may be blended.

The mixing ratio of the 1st to 3rd parts of the 3-agent type hair bleaching/destaining composition is appropriately set in consideration of the concentration and mixability of each component in the mixture, but is preferably 1:1. 0.5:0.1 to 1:6:3, more preferably 1:1:0.1 to 1:4:2, still more preferably 1:2:0.1 to 1:3:1 is.

<Hair bleaching / destaining composition of four or more agent types>
The hair bleaching and destaining composition of the present embodiment may contain at least three types of agents: an agent containing an alkaline agent, an agent containing an oxidizing agent, and an agent containing a persulfate. A part of each component contained in each agent constituting the bleaching/destaining composition may be constituted as a separate agent to form a four-agent or more hair bleaching/destaining composition.

For example, a 4-agent hair bleaching/de-staining composition can be constructed by using a separate component in the first agent of the 3-agent hair bleaching/de-staining composition. For example, a first agent containing an alkaline agent, a second agent having the same composition as the second agent of the three-agent hair bleaching/destaining composition, and a three-agent hair bleaching/destaining agent. It consists of a third agent having the same composition as the third agent of the composition, and a fourth agent containing the ingredients blended in the first agent of the three-agent hair bleaching/destaining composition described above. . The four-agent hair bleaching/destaining composition thus constituted has good storage stability. The mixing ratio of each component of the 4-component or more hair bleaching/decoloring composition is appropriately set in consideration of the concentration and mixability of each component in the mixture.

Next, a method for using the hair bleaching/destaining composition of the present embodiment will be described below.
First, by mixing each component of the above-described hair bleaching/decoloring composition comprising a plurality of components, a mixture of the hair bleaching/decoloring composition containing an alkaline agent, an oxidizing agent, a persulfate, etc. is prepared and then applied to the hair. The mixing method is not particularly limited. For example, a stirring rod or a brush may be used to stir by hand, or a stirrer, an electric stirrer, or the like may be used. Application of the mixture of the hair bleaching and destaining agent composition to the hair can be carried out by a known method, for example, a method of applying to the hair with a hand wearing thin gloves, a comb or a brush attached to the hair. . After the mixture has been applied to the hair, a step of rinsing the mixture applied to the hair with water is carried out according to a conventional method after a predetermined period of time has elapsed. Next, a step of washing the hair, preferably using a shampoo composition in a conventional manner, and rinsing with water is carried out. The shampoo composition is not particularly limited as long as it is applied for washing hair, and known shampoo compositions can be applied. Shampoo compositions include, for example, shampoos (hair shampoos), rinse-in shampoos, scalp shampoos, and the like. Next, a step of rinsing the hair with a rinsing composition and rinsing with water is performed, preferably according to a conventional method. The rinsing composition is not particularly limited as long as it is applied for rinsing hair, and known rinsing compositions can be applied. Rinse compositions include, for example, hair rinses, color rinses, cream rinses, acidic rinses, temporary rinses, conditioners, hair treatments, hair packs, hair masks, and the like. A known rinse composition can be applied to the treatment step using the rinse composition. Next, a step of drying the hair is carried out, preferably according to conventional methods.

According to the hair bleaching and destaining composition of the present embodiment, the following effects can be obtained.
(1) This embodiment is a hair bleaching/destaining composition comprising a third agent containing (A) a persulfate and (B) at least one selected from nonionic polymers and anionic polymers as a viscosity-increasing polymer. In the product, the pH at 25° C. was adjusted to 7 to 9 when the third agent was dissolved in water at a concentration of 1% by mass. Therefore, the bleaching and destaining properties after hair treatment are excellent, and the heat generated when the persulfate comes into contact with water can be suppressed.

(2) In the hair bleaching and destaining composition of the present embodiment, when the third agent further contains (C) an acid, the heat generated when the persulfate comes into contact with water can be further suppressed. . In addition, the feel after hair treatment can be further improved.

(3) In the hair bleaching / destaining composition of the present embodiment, the concentration of the first agent in water is 1% by mass with respect to the pH at 25 ° C. when the third agent is dissolved in water at a concentration of 1% by mass. When the pH ratio at 25° C. is 1 to 1.5 at the time of dissolution at 25° C., it is possible to achieve both the heat generation suppressing effect, the feel after hair treatment, and the bleaching and destaining properties.

(4) When the hair bleaching/destaining composition of the present embodiment is used, the pH at 25° C. when dissolved in water at a concentration of 1% by mass is 8.5. When it is to 10, decolorization and destaining properties can be further improved. In addition, the feel of the hair can be further improved.

Note that the above embodiment may be modified as follows.
- In the above embodiment, the persulfate may be blended into the second agent, which is blended with the oxidizing agent, as long as the stability of the formulation is not lowered.

- In the above embodiment, the dosage form of the mixture in which each agent is mixed is not particularly limited, and as a specific example, the dosage form at 25 ° C. is, for example, an emulsion, a liquid such as an aqueous solution or a milky lotion, a gel, or a foam. , cream, and the like.

Next, the embodiment will be described more specifically with reference to examples and comparative examples. It should be noted that the present invention is not limited to the configurations described in Examples. Hereinafter, Example 5 shall be replaced with Reference Example 5.
A first agent, a second agent, and a third agent were prepared as hair bleaching and destaining compositions containing each component shown in Tables 1 to 6. In each table, the numerical value in the column indicating each component indicates the content of the component in that column, and the unit is % by mass. The notations (A) to (C) in the "Component" column in the table indicate compounds corresponding to the respective components described in the claims of the present application. Numerical values in parentheses of the compound name POE are E.P. O. indicates the number of added moles of Further, the pH of each agent indicates the pH at 25° C. when each prepared agent is dissolved in water at a concentration of 1% by mass.

Using the first, second and third hair bleaching and destaining compositions obtained, the heat generation, bleaching and destaining power, and feel were evaluated as follows.
(fever)
20 g of Part 3 of each example and 5 g of water (40° C.) were mixed and mixed 10 times with a stirring bar. Temporal temperature change was measured in a 25°C environment. 5 points if the maximum temperature is 45 ° C. or less, 4 points if it is over 45 ° C. and 50 ° C. or less, 3 points if it is over 50 ° C. and 60 ° C. or less, and more than 60 ° C. and 70 ° C. or less. 2 points were given when the temperature exceeded 70°C, and 1 point was given when the temperature exceeded 70°C.

(Decolorization/Destaining power)
The destaining treatment was performed on a white hair bundle (manufactured by Beaulux) pretreated with an oxidative hair dye. Hoyu's Prostep (Gray Color GS-6) was used as an oxidation hair dye for pretreatment. The first agent and the second agent (cream oxidant (6%)) were mixed at a ratio of 1:1, and the white hair tresses were dyed according to a conventional method. Next, after rinsing the oxidative hair dye adhering to the hair bundle with water, the hair bundle was shampooed twice (Bigen Treatment Shampoo manufactured by Hoyu Co., Ltd. as a shampoo composition) and rinsed (Hoyu Co., Ltd. as a rinse composition). Bigen Treatment Rinse) was applied once. The shampoo composition and rinse composition were rinsed with water after each treatment. Subsequently, the hair tress was dried with warm air and left for one day.

Next, the first part, the second part and the third part as the hair bleaching and destaining composition are mixed at a mass ratio of 1:2:0.3 to obtain the hair bleaching and destaining composition of each example. A mixture of materials was prepared. The mixtures were prepared without using the first agent in Comparative Example 3 and the second agent in Comparative Example 4, respectively. It was applied to the pretreated tresses using a brush and left at 30° C. for 30 minutes. Next, after rinsing the mixture adhering to the hair bundle with water, the hair bundle was shampooed twice (Bigen Treatment Shampoo manufactured by Hoyu Co., Ltd. as a shampoo composition) and rinsed (Hoyu Co., Ltd. as a rinse composition). Bigen Treatment Rinse) was applied once. The shampoo composition and rinse composition were rinsed with water after each treatment. Subsequently, the hair tress was dried with warm air and then left to stand for one day to obtain a dedyed hair tress.

The bleaching treatment was performed on a black hair tress (manufactured by Beaulux). A mixture of the hair bleaching and destaining composition of each example was prepared in the same manner as the destaining treatment. It was applied to a black hair tress using a brush and left at 30° C. for 30 minutes. Thereafter, shampooing, rinsing, and drying were performed in the same manner as in the decolorization treatment to obtain a bleached hair tress.

Using the dedyed hair tress and the bleached hair tress of each example, 10 panelists visually evaluated the decolorization and destaining power under a standard light source according to the following method.
When both the bleaching power and the destaining power are excellent (5 points), one of the bleaching power and the destaining power is excellent, and when the other is excellent (4 points), both the bleaching power and the destaining power are excellent. (3 points), poor in either the bleaching power or the destaining power (2 points), and poor in both the bleaching power and the destaining power (1 point). Calculate the average value of the scoring results of each panelist, and the average value of 4.6 points or more is "excellent: 5", 3.6 points or more and less than 4.6 points is "good: 4", 2.6 points or more 3 The evaluation result was defined as "Fair: 3" for less than 6 points, "Slightly poor: 2" for 1.6 to less than 2.6 points, and "Poor: 1" for less than 1.6 points. The results are shown in the table below.

(feel (finish))
The feel (finish) of the hair tresses was evaluated by 10 panelists using the bleached hair tresses according to the following criteria. The tactile feel of the tresses was graded on a 5-point scale of excellent (5 points), good (4 points), acceptable (3 points), somewhat poor (2 points), and poor (1 point). Calculate the average value of the scoring results of each panelist, and the average value of 4.6 points or more is "excellent: 5", 3.6 points or more and less than 4.6 points is "good: 4", 2.6 points or more 3 The evaluation result was defined as "Fair: 3" for less than 6 points, "Slightly poor: 2" for 1.6 to less than 2.6 points, and "Poor: 1" for less than 1.6 points. The results are shown in the table below.

各表に示されるように、各実施例は、各評価について可以上の結果であることが確認された。表３に示されるように、第３剤のｐＨが９を超える比較例１は、各実施例に対して、発熱及び感触の評価が劣ることが確認された。第３剤のｐＨが７未満の比較例２は、各実施例に対して、脱色・脱染力の評価が劣ることが確認された。第１剤を使用しない比較例３は、各実施例に対して、脱色・脱染力及び感触の評価が劣ることが確認された。第２剤を使用しない比較例４は、各実施例に対して、脱色・脱染力及び感触の評価が劣ることが確認された。

As shown in each table, each example was confirmed to have acceptable or better results for each evaluation. As shown in Table 3, it was confirmed that Comparative Example 1, in which the pH of the third agent exceeds 9, was inferior to each Example in terms of heat generation and feel. It was confirmed that Comparative Example 2, in which the pH of the third agent was less than 7, was inferior to each Example in terms of decolorization and destaining power. It was confirmed that Comparative Example 3, in which the first agent was not used, was inferior to the respective Examples in terms of decolorization/destaining power and feel. It was confirmed that Comparative Example 4, which did not use the second agent, was inferior in evaluation of decolorization/destaining power and feel to each Example.

Claims (4)

A first agent containing an alkaline agent, a second agent containing an oxidizing agent, (A) a persulfate, and (B) a third agent containing at least one selected from nonionic polymers and anionic polymers as a thickening polymer. A hair bleaching / destaining agent composition containing an agent,
The third agent has a pH of 7 to 9 at 25° C. when dissolved in water at a concentration of 1% by mass, and the third agent further contains (C) an acid . A hair bleaching and destaining composition. 2. The hair bleaching and destaining composition according to claim 1 , wherein the content of the acid (C) in the third agent is 0.1 to 10% by mass. The ratio of the pH at 25° C. when the first agent is dissolved in water at a concentration of 1% by mass to the pH at 25° C. when the third agent is dissolved in water at a concentration of 1% by mass is 1 to 1 3. The hair bleaching and destaining composition according to claim 1 or 2 , wherein the composition is .5. 4. The composition according to any one of claims 1 to 3 , wherein the hair bleaching and destaining composition has a pH of 8.5 to 10 at 25°C when dissolved in water at a concentration of 1 mass%. or the hair bleaching/de-staining agent composition according to claim 1.