JP7406218B2 - Oxidizing agent-containing composition and method of using the same - Google Patents

Description

The present invention relates to an oxidizing agent-containing composition used as a hair dye or a hair bleaching/destaining agent, and a method for using the same.

Generally, as a hair treatment composition, a hair dye or a hair bleaching/destaining agent that exhibits an effect by mixing a plurality of chemicals is known. Such a hair treatment composition includes, for example, a first part containing an alkaline agent and an oxidizing dye, and a second part (oxidizing agent-containing composition) containing an oxidizing agent, such as hydrogen peroxide. Oxidizing hair dyes are known.

In oxidative hair dyes, oily components are known as components for improving the feel of hair after hair dyeing. For example, Patent Document 1 discloses an oxidizing agent-containing emulsion composition containing an oily component such as a hydrocarbon.

JP 2016-8175 Publication

However, when a relatively large amount of a hydrocarbon that is liquid at 25° C. is blended into a composition containing an oxidizing agent, there is a problem in that the stability of the formulation decreases.
An object of the present invention is to provide an oxidizing agent-containing composition that can improve formulation stability and a method for using the same in an oxidizing agent-containing composition used as a hair dye or a hair bleaching/destaining agent.

The present invention is based on the discovery that the formulation stability of an oxidizing agent-containing composition containing a predetermined amount of liquid hydrocarbon at 25°C can be improved by using a specific nonionic surfactant and a higher alcohol in combination. It is based on In addition, when a solubilizing agent such as water is used, the numerical value of mass % indicating the content of a component is the numerical value in the dosage form including the solubilizing agent such as water.

In order to achieve the above object, one aspect of the present invention provides an oxidizing agent-containing composition that is mixed with an agent containing an alkaline agent and used as a hair dye or a hair bleaching/destaining agent, the composition comprising (A ) It is characterized by containing 4% by mass or more of a hydrocarbon that is liquid at 25°C, (B) a nonionic surfactant whose HLB is 8 or less, and (C) a higher alcohol.

The nonionic surfactant may be at least one selected from monoglycerin fatty acid esters and polyglycerin fatty acid esters. The component (C) may be a higher alcohol having 20 or more carbon atoms. The mass ratio of the sum of the content of component (A) and the content of component (C) to the content of component (B) may be 3 to 50.

Another aspect of the present invention is a method of using the oxidizing agent-containing composition, wherein the oxidizing agent-containing composition and an agent containing an alkaline agent are mixed to prepare a hair dye or a hair bleaching/destaining agent. It is characterized by including the step of.

According to the present invention, formulation stability can be improved.

Hereinafter, one embodiment of the oxidizing agent-containing composition of the present invention will be described. The oxidizing agent-containing composition is configured, for example, as a second agent of a hair dye or hair bleaching/destaining agent containing an alkaline agent and an oxidizing agent. Specific examples of hair dyes or hair bleaching/destaining agents include two-part hair dyes or hair bleaching/destaining agents, three-part hair dyes, hair bleaching/destaining agents, etc. . Hereinafter, the components of the hair dye or hair bleaching/destaining agent containing the second agent configured as an oxidizing agent-containing composition will be illustrated.

<Two-part hair bleaching/destaining agent>
A two-part hair bleaching/destaining agent is composed of, for example, a first part containing at least an alkaline agent and a second part containing at least an oxidizing agent.

(Second agent of two-part hair bleaching/destaining agent)
In addition to the oxidizing agent, the second agent contains (A) 4% by mass or more of a hydrocarbon that is liquid at 25°C, (B) a nonionic surfactant with an HLB of 8 or less, (C) a higher alcohol, etc. are doing.

The oxidizing agent improves the bleaching properties of melanin contained in hair. Specific examples of oxidizing agents include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, sodium persulfate, sodium peroxide, Potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, hydrogen peroxide adducts of sulfates, hydrogen peroxide adducts of phosphates, hydrogen peroxide adducts of pyrophosphates, etc. Can be mentioned. Among these specific examples of oxidizing agents, only one type may be contained alone, or two or more types may be contained in combination.

The lower limit of the content of the oxidizing agent in the second agent is set as appropriate, but is preferably 0.1% by mass or more, more preferably 2.0% by mass or more, and even more preferably 3.0% by mass. % or more. When the content of the oxidizing agent is 0.1% by mass or more, the melanin decolorizing property can be further improved. The upper limit of the content of the oxidizing agent in the second agent is set as appropriate, but is preferably 15.0% by mass or less, more preferably 9.0% by mass or less, and still more preferably 6.0% by mass or less. It is 0% by mass or less. When the content of the oxidizing agent is 15.0% by mass or less, hair damage etc. can be suppressed.

When hydrogen peroxide is added to the second part as an oxidizing agent, in order to improve the stability of hydrogen peroxide, the second part preferably contains a stabilizer such as sodium stannate, ethylene glycol phenyl ether (phenoxyethanol), etc. ), hydroxyethane diphosphonic acid, or a salt thereof. Specific examples of hydroxyethane diphosphonate include tetrasodium hydroxyethane diphosphonate, disodium hydroxyethane diphosphonate, and the like.

(A) Hydrocarbons that are liquid at 25° C. improve the brightness and feel of hair after hair treatment. Specific examples of component (A) include α-olefin oligomer, light isoparaffin, light liquid isoparaffin, synthetic squalane, vegetable squalane, squalane, polybutene, liquid paraffin, polyisobutene, hydrogenated polyisobutene, and the like. Among these specific examples, only one type may be contained alone, or two or more types may be contained in combination. Among these, α-olefin oligomers, squalane, liquid paraffin, and light liquid isoparaffin are preferable from the viewpoint of improving brightness and texture while maintaining formulation stability. α-olefin oligomer, liquid paraffin, and light liquid isoparaffin is more preferable.

The lower limit of the content of component (A) in the second agent is 4% by mass or more, preferably 5% by mass or more, and more preferably 8% by mass or more. When the content is 4% by mass or more, the brightness and feel of hair after hair treatment are improved. Further, the upper limit of the content of component (A) in the second agent is appropriately set, but is preferably 40% by mass or less, more preferably 30% by mass or less, and even more preferably 25% by mass or less. When the content is 40% by mass or less, the feel of the hair after hair treatment is improved. It also improves miscibility with the first agent.

(B) A nonionic surfactant with an HLB of 8 or less improves formulation stability. Component (B) includes ether type nonionic surfactants such as polyoxyethylene (hereinafter referred to as "POE") alkyl ether type nonionic surfactants, monoglycerin fatty acid esters, polyglycerin fatty acid esters, and sorbitan fatty acids. Examples include ester type nonionic surfactants such as esters. Among these, ester-type nonionic surfactants are preferred from the viewpoint of being excellent in the effect of improving formulation stability, and monoglycerin fatty acid esters and polyglycerin fatty acid esters are more preferred. In component (B), the nonionic surfactant has an HLB value of 8 or less, preferably 7 or less, and more preferably 6 or less. When the HLB value is lower, the stability of the formulation can be further improved. From the viewpoint of improving formulation stability, it is preferable to use two or more types of component (B) in combination. When using two or more types of (B) components together, it is preferable to use a POE alkyl ether type nonionic surfactant and an ester type nonionic surfactant, and a POE alkyl ether type nonionic surfactant It is more preferable to use a monoglycerol fatty acid ester or a polyglycerol fatty acid ester together.

Specific examples of component (B) are listed below. The numerical value in parentheses of the compound name POE is E. O. Shows the number of moles added. Further, in the present invention, the HLB value employs a value obtained from actual measurements described below, but the numerical values described in the Nikko Chemicals Catalog (2014) are described as reference values. Specific examples of component (B) include POE (3) alkyl (C12-14) ether (HLB: 8), POE (2) cetyl ether (HLB: 8.0), POE (2) myristyl ether (HLB :5.8), POE (3) myristyl ether (HLB: 7.7), POE (2) hexyldecyl ether (HLB: 5.3), POE (2) stearyl ether (HLB: 8.0), POE (2) oleyl ether (HLB: 4.9), POE (3) oleyl ether (HLB: 6.6), POE (2) octyl dodecyl ether (HLB: 4.6), POE (2) behenyl ether (HLB :4.3), POE (3) behenyl ether (HLB: 5.8), POE (5) behenyl ether (HLB: 7.0), lipophilic glyceryl monooleate (HLB: 2.5), parent Oil type glyceryl monostearate (HLB: 4.0), self-emulsifying type glyceryl monostearate (HLB: 6.0), glyceryl monomyristate (HLB: 3.5), polyglyceryl monostearate (HLB: 5. 0), sorbitan monooleate (HLB: 4.3), sorbitan sesquioleate (HLB: 3.7), sorbitan trioleate (HLB: 1.7), sorbitan monostearate (HLB: 4.7) , sorbitan monopalmitate (HLB: 6.7), and the like. Among these specific examples, only one type may be contained alone, or two or more types may be contained in combination.

Note that HLB (hydrophile-lipophile balance) is a numerical value devised by W.C. Griffin and given to nonionic surfactants, and is the value of the lipophile group (alkyl group) and hydrophilic group of the nonionic surfactant. (ethylene oxide chain) is a numerical representation of the strength balance. For the HLB value, an actual value calculated by the emulsification method is used (see "Handbook - Cosmetics and Pharmaceutical Raw Materials -" Nikko Chemicals Co., Ltd. (revised edition published February 1, 1978)). To measure the actual HLB value, sorbitan monostearate (for example, NIKKOL SS-10 manufactured by Nikko Chemicals, HLB value 4.7) and polyoxyethylene sorbitan monostearate (for example, Nikko Chemicals) were used as standard surfactant substances. NIKKOL TS-10 (HLB value 14.9) manufactured by NIKKOL Co., Ltd. is used in combination. Liquid paraffin is used for the emulsified material. If liquid paraffin is likely to vary depending on the type or lot, it should be measured each time. Liquid paraffin is emulsified with the above two types of surfactants, the optimum ratio of surfactants is determined, and the required HLB value of liquid paraffin (HLB value to be emulsified) is determined. The calculation formula is shown in formula (1).

The required HLB value for liquid paraffin is usually about 10.1 to 10.3, depending on the type and lot. Next, the HLB of the unknown surfactant is measured using liquid paraffin for which the required HLB value has been determined. If the unknown surfactant is hydrophilic, it is combined with sorbitan monostearate, and if the unknown surfactant is hydrophobic, it is combined with polyoxyethylene sorbitan monostearate to emulsify the liquid paraffin and improve its stability. The optimal ratio at a certain point is determined and calculated by applying the HLB value of the unknown surfactant to the above formula (1) as x.

The lower limit of the content of component (B) in the second agent is set as appropriate, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and still more preferably 0.65% by mass or more. It is. When the content of component (B) is 0.01% by mass or more, the stability of the formulation is further improved. The upper limit of the content of component (B) in the second agent is appropriately set, but is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 2% by mass or less. When the content of component (B) is 10% by mass or less, the stability of the formulation is further improved.

(C) Higher alcohol improves formulation stability and mixability with the first agent. (C) Specific examples of the higher alcohol include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, arachyl alcohol, behenyl alcohol, 2-octyldodecanol, and lauryl alcohol. , myristyl alcohol, decyltetradecanol, lanolin alcohol and the like. Among these, only one type may be contained alone, or two or more types may be contained in combination. Among these, higher alcohols having 20 or more carbon atoms are preferred, and behenyl alcohol and aracyl alcohol are more preferred, from the viewpoint of being excellent in improving formulation stability and miscibility with the first agent. When using a mixture of two or more types of component (C), it is preferable that a higher alcohol having 20 or more carbon atoms is included. In addition, when applying behenyl alcohol, even if the second agent is in the form of an emulsion with a viscosity of 10,000 mPa・s or less at 25°C, it improves miscibility with the first agent while maintaining brightness and formulation stability. .

The lower limit of the content of component (C) in the second agent is appropriately set, but is preferably 0.1% by mass or more, more preferably 1% by mass or more, and even more preferably 2% by mass or more. When the content of component (C) is 0.1% by mass or more, the stability of the formulation is further improved. The upper limit of the content of component (C) in the second agent is appropriately set, but is preferably 20% by mass or less, more preferably 10% by mass or less, and still more preferably 8% by mass or less. When the content of component (C) is 20% by mass or less, the stability of the formulation is further improved. It also improves miscibility with the first agent.

The lower limit of the mass ratio of the sum of the content of component (A) and the content of component (C) to the content of component (B) in the second agent is set as appropriate, but is preferably 3 or more, more preferably is 5 or more, more preferably 7 or more. The upper limit of this mass ratio is set as appropriate, but is preferably 50 or less, more preferably 45 or less, and still more preferably 40 or less. By regulating this mass ratio within the above range, the stability of the formulation is further improved.

The lower limit of the mass ratio of the content of component (A) to the content of component (B) in the second agent is set appropriately, but is preferably 1 or more, more preferably 5 or more, and even more preferably 8 or more. be. The upper limit of this mass ratio is set as appropriate, but is preferably 50 or less, more preferably 40 or less, and still more preferably 30 or less. By regulating this mass ratio within the above range, the stability of the formulation is further improved.

Hair bleaching/destaining agents may contain ingredients other than those mentioned above, such as solubilizers, water-soluble polymers, inorganic polymers, oily ingredients other than those mentioned above, polyhydric alcohols, and surfactants other than those mentioned above, as necessary. , pH adjusters, sugars, preservatives, stabilizers, plant extracts, crude drug extracts, vitamins, fragrances, antioxidants, chelating agents, ultraviolet absorbers, and the like.

The solubilizer is added, for example, when the second agent is made into a liquid. Examples of solubilizers used include, for example, water and 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, cinnamon alcohol, anise alcohol, Examples include p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, ethylene glycol phenyl ether (phenoxyethanol), phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate, and alkyl ether. Among these solubilizers, only one type may be contained alone, or two or more types may be contained in combination. Among these, water is preferably used because of its excellent ability to dissolve other components in the second agent. When water is used as a solvent, the content of water in the second agent (content at the time of use) is preferably 40% by mass or more, more preferably 50% by mass or more.

The water-soluble polymer gives the hair bleaching/decoloring agent appropriate viscosity. Therefore, the hair bleaching/destaining agent may contain a water-soluble polymer within a range that does not impede the effects of the present invention. Examples of water-soluble polymers include natural polymers, semi-synthetic polymers, synthetic polymers, and the like. Specific examples of natural polymers include starch, guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, gum tragacanth, pectin, mannan, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, Examples include casein, albumin, collagen, dextrin, triglucopolysaccharide (pullulan), and the like.

Specific examples of semi-synthetic polymers include crystalline cellulose, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylcellulose dimethyldiallylammonium chloride, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, cationized cellulose, and cationized guar gum. , starch phosphate, alginate propylene glycol ester, alginate and the like.

Specific examples of synthetic polymers include polyvinylcaprolactam, polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), vinylpyrrolidone-vinyl acetate (VP/VA) copolymer, polyvinyl butyral, polyvinyl methyl ether, carboxyvinyl polymer, and polyvinylbutyral. Sodium acrylate, polyacrylamide, polyethylene oxide, ethylene oxide/propylene oxide block copolymer, acrylic acid/alkyl acrylate copolymer, polydimethylmethylenepiperidinium chloride (polydimethyldimethylenepyrrolidinium chloride) (polyquaternium-6) ) (Marquat 100: manufactured by Merck & Co.), a half ester of itaconic acid and POE alkyl ether, or an ester of methacrylic acid and POE alkyl ether, and at least one monomer selected from acrylic acid, methacrylic acid and their alkyl esters. Examples include copolymers consisting of Among these, only one type may be contained alone, or two or more types may be contained in combination.

Specific examples of inorganic polymers include bentonite, magnesium aluminum silicate, laponite, hectorite, and silicic anhydride. Among these, only one type may be contained alone, or two or more types may be contained in combination.

The oily component particularly imparts a moist feeling to the hair. Therefore, the hair bleaching/destaining agent may further contain an oily component shown below within a range that does not impede the effects of the present invention. Examples of oily components include fats and oils, waxes, hydrocarbons that are solid at 25° C., ester oils, higher fatty acids, alkyl glyceryl ethers, and silicones.

Specific examples of fats and oils include Argania spinosa kernel 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, jojoba oil, and the like. Specific examples of hydrocarbons that are solid at 25°C include paraffin, polyethylene, microcrystalline wax, vaseline, isoparaffin, and the like.

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

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

Specific examples of silicones include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, highly polymerized silicone, 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 contained in combination.

Examples of polyhydric alcohols include glycol, glycerin, and the like. Examples of the glycol include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, highly polymerized polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol, and the like. Examples of glycerin include glycerin, diglycerin, polyglycerin, and the like. Among these polyhydric alcohols, only one type may be contained alone, or two or more types may be contained in combination.

The surfactant emulsifies or solubilizes the hair bleaching/destaining agent when used as an emulsifier or a component for solubilizing each component, and adjusts the viscosity and improves the viscosity stability. Therefore, the hair bleaching/destaining agent may further contain a surfactant shown below within a range that does not impede the effects of the present invention. Surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants with an HLB of greater than 8.

Specific examples of anionic surfactants include alkyl ether sulfates, alkyl sulfates, alkyl ether sulfates, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, 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, sulfosuccinates, N-alkylmethyl taurate salts, and the like. Examples include derivatives of. Specific examples of counter ions for the anionic groups of these surfactants include sodium ions, potassium ions, triethanolamine, and the like. More specifically, the alkyl ether sulfate salt includes, for example, 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 sulfosuccinates include disodium lauryl sulfosuccinate. Specific examples of N-alkyloylmethyltaurate include sodium N-stearoyl-N-methyltaurate.

Cationic surfactants further improve formulation stability. Therefore, the second agent may further contain a cationic surfactant within a range that does not impede the effects of the present invention. 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, behenic acid diethylaminoethylamide, behenic acid dimethylaminopropylamide, Examples include behenic acid dimethylaminoethylamide, stearyldimethylamine, palmitoxypropyldimethylamine, stearoxypropyldimethylamine, stearic acid dimethylaminopropylamide, and the like. Specific examples of alkyltrimethylammonium chloride include behenyltrimethylammonium chloride, aralkyltrimethylammonium chloride, and the like. Among these specific examples, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, and alkyltrimethylammonium chloride are preferred from the viewpoint of being excellent in the effect of improving formulation stability.

The lower limit of the content of the cationic surfactant in the second agent is set as appropriate, but is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and even more preferably 0.1% by mass. That's all. When the content of the cationic surfactant is 0.01% by mass or more, the stability of the formulation is further improved. The upper limit of the content of the cationic surfactant in the second agent is appropriately set, but is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 1% by mass or less. When the content of the cationic surfactant is 10% by mass or less, the stability of the formulation is further improved.

Specific examples of amphoteric surfactants include cocobetaine, lauramide propyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidopropyl betaine, lauryl betaine (lauryldimethylaminoacetic acid betaine), and lauryl. Examples include sodium aminopropionate.

Nonionic surfactants are selected from those with an HLB greater than 8. By using the above component (B) in combination with a nonionic surfactant having an HLB value of more than 8, the stability of the formulation is further improved. Therefore, it is preferable that the second agent further contains a nonionic surfactant having an HLB of more than 8 within a range that does not inhibit the effects of the present invention. Specific examples of the nonionic surfactant 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 (Oles), POE lauryl ether (Laureth), and POE octyldodecyl. Examples include ether, POE hexyldecyl ether, POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, POE polyoxypropylene cetyl ether, POE polyoxypropylene decyl tetradecyl 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 glyceryl monostearate, POE glyceryl monomyristate, POE sorbitol tetraoleate, POE sorbitol hexasteate, POE sorbitol monolaurate, POE sorbitol beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol monolaurate, sorbitan monolaurate, sucrose Fatty acid esters, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate, POE-reduced lanolin, and the like can be mentioned.

Specific examples of alkyl glucosides include alkyl (8 to 16 carbon atoms) glucoside, POE methyl glucoside, POE methyl dioleate glucoside, and the like. Among these specific examples of surfactants, only one type may be contained alone, or two or more types may be contained in combination. Among these nonionic surfactants, POE cetyl ether (Ceteth), POE stearyl ether (Steareth), and POE behenyl ether are preferred from the viewpoint of being excellent in the effect of improving formulation stability.

A pH adjuster may be added to adjust the pH of the hair bleaching/destaining agent. Examples of the pH adjuster include inorganic acids, organic acids, salts thereof, and the like. Specific examples of inorganic acids include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, boric acid, and the like. Furthermore, 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 the like. 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 preservatives 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. Specific examples of chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and its salts, ethylenediaminehydroxyethyltriacetic acid and its salts, and hydroxyethane. Examples include diphosphonic acid (HEDP) and its salts.

The dosage form of the second agent is not particularly limited, and specific examples of the dosage form at 25° C. include liquids such as aqueous solutions and emulsions, gels, foams, and creams. Further, it can be an aerosol, a non-aerosol, etc., and in the case of a non-aerosol, it can further take various forms such as a squeeze foamer type and a pump former type. Furthermore, in the case of an aerosol, known propellants and foaming agents can be used. Specific examples of the propellant or blowing agent include liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen gas, carbon dioxide gas, and the like. Only one type of these may be used, or two or more types may be used in combination.

(First agent of two-part hair bleaching/destaining agent)
The first agent contains an alkaline agent. The alkaline agent contained in the first part promotes the action of the oxidizing agent contained in the second part, and functions to improve the hair bleaching effect and/or decoloring effect. In addition, in the hair dye mentioned later, hair dyeing property is improved.

Specific examples of alkaline agents include ammonia, alkanolamines, silicates, carbonates, hydrogen carbonates, metasilicates, sulfates, chlorides, phosphates, organic amines, basic amino acids, alkali metals, and alkalis. Examples include hydroxides of earth metals. Specific examples of alkanolamines include monoethanolamine, triethanolamine, and the like. Specific examples of silicates include sodium silicate, potassium silicate, and the like. Specific examples of carbonates include sodium carbonate, ammonium carbonate, and the like. Specific examples of hydrogen carbonate include sodium hydrogen carbonate, ammonium hydrogen carbonate, and the like. Specific examples of metasilicate include sodium metasilicate, potassium metasilicate, and the like. Specific examples of sulfates include ammonium sulfate and the like. Specific examples of chlorides include ammonium chloride and the like. Specific examples of phosphates include ammonium dihydrogen phosphate, diammonium hydrogen phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate, trisodium phosphate, and the like. Specific examples of organic amines include 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol, guanidine, and 1-amino-2-propanol (MIPA). ) etc. Specific examples of basic amino acids include arginine, lysine, and the like. Specific examples of alkali metal or alkaline earth metal hydroxides include sodium hydroxide, potassium hydroxide, and the like. Among these alkaline agents, only one type may be contained alone, or two or more types may be contained in combination. Among these, ammonia, ammonium salts, alkanolamines, and carbonates are preferably used from the viewpoint of being excellent in the effect of improving the brightness of hair.

The content of the alkaline agent in the hair bleaching/destaining agent, that is, the mixture of the first and second agents during use, is as follows: When the hair bleaching/destaining agent is applied to normal bleaching/destaining treatment, It is preferably blended in an amount that makes the pH range from 7 to 12, more preferably in an amount that makes the pH range from 9 to 12. By setting the pH of the mixture to 7 or higher, the action of the oxidizing agent contained in the second agent can be promoted. By controlling the pH of the mixture to 12 or less, damage to the hair caused by application of the hair bleaching/destaining agent can be suppressed. Note that the pH of the hair bleaching/destaining agent is determined by measuring the pH of the stock solution of the hair bleaching/destaining agent at 25°C.

The first agent may contain components that are generally contained in hair bleaching/destaining agents and do not inhibit the effects of the components described above. For example, the components contained in the second agent described above may be included as appropriate within a range that does not impede the effects of the present invention.

The dosage form of the first agent is not particularly limited, and specific examples of the dosage form at 25° C. include liquids such as aqueous solutions and emulsions, gels, foams, creams, and solids. Moreover, it can also be an aerosol, a non-aerosol, or the like. Furthermore, in the case of an aerosol, known propellants and foaming agents can be used. Examples of the solid form include powder, granule, and tablet form. In the case of a solid dosage form, a dispersant such as a metal stearate such as calcium stearate or magnesium stearate, sodium sulfate, talc, lactose, and low-substituted hydroxypropyl cellulose may be added. Only one type of these may be used, or two or more types may be used in combination.

<Three-component hair bleaching/destaining agent>
A three-part hair bleaching/destaining agent may include, for example, a first part having the same composition as the first part of the two-part hair bleaching/destaining agent mentioned above, and a two-part hair bleaching/destaining agent mentioned above. It is composed of a second part having the same composition as the second part of the dye, and a third part containing at least percarbonate. The three-component hair bleaching/destaining agent constructed in this way further improves the brightness because percarbonate is used in combination as an oxidizing agent.

(3rd agent of 3-part hair bleaching/destaining agent)
The third agent can also contain a dispersant and the like in addition to a percarbonate. Percarbonate improves the oxidation effect and makes the hair brighter after hair treatment. Specific examples of percarbonates include sodium percarbonate, potassium percarbonate, and the like. Among these specific examples, only one type may be contained alone, or two or more types may be contained in combination.

From the viewpoint of formulation stability, the dosage form of the third agent is preferably a solid dosage form at 25°C. Examples of the solid form include powder, granule, and tablet form. Further, the third agent may contain components that are generally contained in hair bleaching/destaining agents and do not inhibit the effects of the aforementioned components. For example, the components contained in the first and second agents described above may be included as appropriate within a range that does not impede the effects of the present invention.

<Two-part hair dye>
A two-part hair dye is, for example, composed of a first part containing at least an alkaline agent and an oxidizing dye, and a second part containing at least an oxidizing agent. Hereinafter, the differences from the above-mentioned hair bleaching/destaining agent will be mainly explained.

(Second agent of two-part hair dye)
The second agent of the hair dye has, for example, the same composition as the second agent of the hair bleaching/destaining agent described above.
(First agent of two-part hair dye)
The first part of the hair dye contains, for example, an alkaline agent and an oxidative dye. Examples of the alkaline agent contained in the first agent are the same as those described above as specific examples of the alkaline agent used in the hair bleaching/destaining agent mentioned above. Oxidation dyes are compounds that can develop color due to oxidative polymerization with an oxidizing agent, and are classified into dye intermediates and couplers, and oxidation dyes preferably include dye intermediates and couplers.

Examples of dye intermediates include p-phenylenediamine, toluene-2,5-diamine (para-toluylenediamine), 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, 1-hydroxyethyl-4,5-diaminopyrazole, salts thereof, and the like. Specific examples of the salt include hydrochloride, sulfate, and the like. Among these specific examples of dye intermediates, only one type may be contained alone, or two or more types may be contained in combination.

Couplers develop color by combining with dye intermediates. Couplers include, for example, resorcinol, 5-amino-o-cresol, m-aminophenol, α-naphthol, 5-(2-hydroxyethylamino)-2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol. , toluene-3,4-diamine, 2,6-diaminopyridine, diphenylamine, N,N-diethyl-m-aminophenol, phenylmethylpyrazolone, 1,5-dihydroxynaphthalene, salts thereof, and the like. Specific examples of the salt include hydrochloride, sulfate, and the like. Among these specific examples of couplers, only one type may be contained alone, or two or more types may be contained in combination. Since the oxidative dye can vary the color tone of hair, it is preferably at least one selected from the above specific examples of the dye intermediate and at least one selected from the above specific examples of the coupler. configured. The first agent may appropriately contain, as a dye other than the oxidative dye, an oxidative dye listed in the "Standards for Quasi-drug Ingredients" (published in June 2006, Yakuji Nippo Co., Ltd.).

The lower limit of the content of oxidation dye in the hair dye is set as appropriate, but is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.5% by mass or more. . In particular, when the content of the oxidative dye is 0.01% by mass or more, the color tone can be further improved.

The upper limit of the content of the oxidative dye in the hair dye is appropriately set, but is preferably 10% by mass or less, more preferably 7% by mass or less, still more preferably 5% by mass or less. When the content of the oxidized dye is 10% by mass or less, especially when a solubilizer is used, solubility in the solubilizer can be improved.

Moreover, the first agent may further contain components other than the above-mentioned components, for example, the components contained in the first and second agents of the hair bleaching/destaining agent, as necessary.
<3-part hair dye>
A three-part hair dye, for example, has a first part having the same composition as the first part of the above-mentioned two-part hair dye, and a second part having the same composition as the second part of the above-mentioned two-part hair dye. and a third agent containing at least percarbonate. The three-component hair dye constructed in this manner further improves brightness because percarbonate is used in combination as an oxidizing agent.

(3rd agent of 3-part hair dye)
The third agent of the hair dye has, for example, the same composition as the third agent of the hair bleaching/destaining agent described above. Percarbonate improves the oxidation effect and improves the lightness of the hair after hair treatment. And it improves the ability to conceal gray hair.

Next, a method of using the oxidizing agent-containing composition of this embodiment will be explained below.
First, by mixing the hair dye or hair bleaching/destaining agent consisting of multiple ingredients mentioned above, a mixture of hair dyes or hair bleaching/destaining agents containing an alkali agent, an oxidizing agent, etc. is produced. After it is prepared, it is applied to the hair. The mixing method is not particularly limited, and for example, stirring may be performed by hand using a stirring bar or brush, or a stirring bar, an electric stirrer, or the like may be used. Moreover, when the dosage form of the mixture is foamy, it may be foamed by shaking. The hair dye or hair bleaching/destaining agent mixture can be applied to the hair by a known method, for example, by applying it to the hair with hands wearing thin gloves, a comb, or a brush. I can do it. Furthermore, when configured as an aerosol type, the mixture may be applied to the hair after each agent is discharged in the form of a foam, or each agent may be mixed on the hair while being applied to the hair.

After a predetermined period of time has elapsed after the mixture has been applied to the hair, a step of rinsing the mixture applied to the hair with water is performed in accordance with a conventional method. Next, the hair is washed using a shampoo composition, preferably according to a conventional method, and then rinsed off with water. The shampoo composition is not particularly limited as long as it is used for washing hair, and any known shampoo composition can be used. Next, a step of rinsing the hair using a rinsing composition, preferably according to a conventional method, and rinsing the hair with water is performed. The rinsing composition is not particularly limited as long as it is used for rinsing hair, and any known rinsing composition can be used. In the treatment step using a rinsing composition, a known rinsing composition can be applied. Next, a step of drying the hair is preferably performed according to a conventional method.

According to the oxidizing agent-containing composition used as the hair dye or hair bleaching/destaining agent of the above embodiment, the following effects can be obtained.
(1) The oxidizing agent-containing composition of the present embodiment contains predetermined amounts of component (A), component (B), and component (C) in addition to the oxidizing agent. Therefore, the formulation stability of the oxidizing agent-containing composition is improved.

(2) In this embodiment, when the nonionic surfactant is at least one selected from monoglycerin fatty acid esters and polyglycerin fatty acid esters, the stability of the formulation is further improved.

(3) In this embodiment, when component (C) is a higher alcohol having 20 or more carbon atoms, the stability of the formulation and the miscibility with the first agent are further improved.
Note that the above embodiment may be modified as follows.

- In the above hair dye, dyes other than the above-mentioned oxidation dyes include those listed in the "Standards for Quasi-drug Ingredients" (published in June 2006, Yakuji Nippo Publishing Co., Ltd.) within a range that does not impede the effects of the present invention. It may also contain a direct dye as appropriate.

- In the oxidizing agent-containing composition of the above embodiment, each of the components (A) to (C) only needs to be blended into the oxidizing agent-containing composition during storage, and one of the other components constituting each agent The number of dosage forms may be further increased by forming the part as a separate preparation. Even in such a configuration, the stability of the formulation can be improved.

・The hair dye or hair bleaching/destaining agent of the above embodiments contains the ingredients contained in each agent constituting the hair dye or hair bleaching/destaining agent described above, as long as the effects of the present invention are achieved. A part of the drug may be prepared as a separate drug to increase the number of dosage forms.

For example, in the first part of the hair dye or hair bleaching/destaining agent mentioned above, the alkaline agent and the composition other than the alkaline agent may be separated and constituted as separate parts. Furthermore, it may be configured as a multi-component hair dye or hair bleaching/destaining agent that further contains an agent containing an oxidation aid such as a persulfate.

- In the above embodiments, 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 may be a liquid, such as an emulsion, an aqueous solution or a milky lotion, a gel, or a foam. , cream, etc.

Next, the embodiment will be described in more detail by giving Examples and Comparative Examples. Note that the present invention is not limited to the configuration described in the Examples section.
A first agent as an oxidizing hair dye and a second agent as an oxidizing agent-containing composition containing each of the components shown in Tables 1 to 3 were prepared. In addition, the numerical value in the column showing each component in each table shows the content of the component in the column, and the unit is mass %. Note that the notations "(A)" to "(C)" in the table indicate compounds corresponding to each of the components (A) to (C) described in the claims of the present application. On the other hand, the expressions "(a) and (b)" in the table indicate comparative compounds of components (A) and (B) described in the claims of the present application. A liquid oxidative hair dye was prepared by mixing the first agent and the second agent at a mass ratio of 1:1.

The obtained oxidative hair dye was applied to black and white hair strands (10 cm, manufactured by Beaulux Co., Ltd.) (hereinafter simply referred to as hair strands) using a brush and left at 30° C. for 30 minutes. Next, after rinsing the oxidized hair dye adhering to the hair strands with water, apply shampoo (Bigen Treatment Shampoo manufactured by Hoyu Co., Ltd. as a shampoo composition) twice to the hair strands and rinse (Hoyu Co., Ltd.'s Bigen Treatment Shampoo as a rinsing composition). I applied Bigen Treatment Rinse (manufactured by Co., Ltd.) once. In addition, the shampoo composition and the rinse composition are washed away with water after each treatment. Subsequently, the hair bundle was dried with warm air and left for one day.

The formulation stability of the second agent and its miscibility with the first agent were evaluated by the method shown below. In addition, the feel and brightness of the hair strands after the hair dyeing treatment were evaluated by the methods shown below.
(Formulation stability of second agent)
The formulation stability of the liquid second agent was determined by placing it in a polyethylene container and leaving it at 50° C. for one day, and then visually evaluating the state of separation of the second agent by five panelists. No separation at all is excellent (5 points), almost no separation is good (4 points), some separation is fair (3 points), and a little separation is fair (3 points). It was scored on a five-point scale: poor (2 points), and those with a lot of separation observed as poor (1 point). The average value is calculated for each panelist's scoring results, and an 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", and 2.6 points or more is 3 points. The evaluation results were as follows: less than .6 points as "fair: 3", 1.6 points or more and less than 2.6 points as "slightly poor: 2", and less than 1.6 points as "poor: 1".

(lightness of hair)
Regarding the brightness of the hair bundles after the hair dye treatment in each of the above examples, five panelists visually observed under a standard light source and evaluated based on the following criteria to judge whether the brightness was excellent or not. Scoring was done in five stages: excellent (5 points), good (4 points), fair (3 points), somewhat poor (2 points), and poor (1 point), and the average value was calculated for each panelist's scoring results. An 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 and less than 3.6 points is "Acceptable: 3", 1 The evaluation results were as follows: .6 points or more and less than 2.6 points were evaluated as "slightly poor: 2", and those below 1.6 points were evaluated as "poor: 1".

(mixability)
The first part and the second part were placed in a hair dyeing cup and mixed by hand at a speed of 170 rpm for 2 minutes using a hair dyeing brush. Mixability was determined by weighing out 0.2 g onto a glass plate, sandwiching the mixture between another glass plate, and having five panelists visually evaluate whether there was any undissolved material using the following criteria. Excellent (5 points) if there are no uneven areas or undissolved parts, Good (4 points) if there are almost no uneven parts or undissolved parts, and some uneven parts or undissolved parts. Scored on a five-point scale: fair (3 points), slightly poor (2 points) for uneven areas or a lot of undissolved parts, and poor (1 point) for uneven areas or a lot of undissolved parts. did. The average value is calculated for each panelist's scoring results, and an 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", and 2.6 points or more is 3 points. The evaluation results were as follows: less than .6 points as "fair: 3", 1.6 points or more and less than 2.6 points as "slightly poor: 2", and less than 1.6 points as "poor: 1". The results are shown in the table below.

(Feeling of hair)
Regarding the feel of the hair strands after the hair dye treatment in each of the above examples, five panelists evaluated whether the hair strands felt moist without being too sticky using the following criteria. judged. Scoring was done in five stages: excellent (5 points), good (4 points), fair (3 points), somewhat poor (2 points), and poor (1 point), and the average value was calculated for each panelist's scoring results. An 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 and less than 3.6 points is "Acceptable: 3", 1 The evaluation results were as follows: .6 points or more and less than 2.6 points were evaluated as "slightly poor: 2", and those below 1.6 points were evaluated as "poor: 1".

As shown in Tables 1 and 2, it was confirmed that each of the Examples had results of fair or better for each evaluation item. As shown in Table 2, it was confirmed that Comparative Examples 1 and 2, which did not contain component (B), were inferior in formulation stability evaluation to each of the Examples. It was confirmed that Comparative Example 3, which did not contain component (C), was inferior in formulation stability evaluation to each of the Examples. In addition, it is confirmed that Reference Example 1, in which vaseline is used instead of component (A), does not provide an excellent hair feel. Similarly, it is confirmed that Reference Example 2, which does not contain component (A), also fails to provide excellent brightness and feel.

Claims (5)

An oxidizing agent-containing composition that is used as a hair dye or hair bleaching/destaining agent by mixing with an agent containing an alkaline agent,
(A) 4% by mass or more of a hydrocarbon that is liquid at 25°C, (B) a nonionic surfactant with an HLB of 6 or less, and (C) a higher alcohol having 12 or more carbon atoms and a higher alcohol having 16 carbon atoms. In the case of 2-hexyldecanol, the nonionic surfactant is an oxidizing agent-containing composition (stearin ) containing at least one selected from the group consisting of 2-hexyldecanol, and the nonionic surfactant is at least one selected from the group consisting of monoglycerin fatty acid ester and polyglycerin fatty acid ester. Glyceryl acid, ceteareth 20, ceteareth 12, cetearyl alcohol, cetyl palmitate, cocoglyceryl, dicaprylyl carbonate, glycerol, liquid paraffin, dipicolinic acid, disodium pyrophosphate, etidronic acid, potassium hydroxide, xanthan gum, propylene glycol, peroxide (excluding the composition of the oxidizing agent composition consisting of hydrogen and water) . An oxidizing agent-containing composition that is used as a hair dye or hair bleaching/destaining agent by mixing with an agent containing an alkaline agent,
(A) 4% by mass or more and 25% by mass or less of a hydrocarbon that is liquid at 25°C, (B) a nonionic surfactant with an HLB of 7 or less, and (C) a higher alcohol with a carbon number of 12 or more and a carbon number In the case of the higher alcohol No. 16, 2-hexyldecanol is used. An oxidizing agent -containing composition containing at least one member selected from the group consisting of glyceryl stearate, ceteareth 20, ceteareth 12, cetearyl alcohol, cetyl palmitate, coglyceryl carbonate, dicaprylyl carbonate, etc. , glycerol, liquid paraffin, dipicolinic acid, disodium pyrophosphate, etidronic acid, potassium hydroxide, xanthan gum, propylene glycol, hydrogen peroxide, and water). Component (C) is at least one member selected from the group consisting of 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, lauryl alcohol, myristyl alcohol, lanolin alcohol, and higher alcohols having 20 or more carbon atoms. Or the oxidizing agent-containing composition according to 2. The oxidizing agent according to any one of claims 1 to 3, wherein the mass ratio of the sum of the content of the component (A) and the content of the component (C) to the content of the component (B) is 3 to 50. Containing composition. A method of using the oxidizing agent-containing composition according to any one of claims 1 to 4, comprising:
A method for using an oxidizing agent-containing composition, which includes the step of mixing the oxidizing agent-containing composition and an agent containing an alkaline agent to prepare a hair dye or a hair bleaching/destaining agent.