JP5016230B2 - Second agent composition for hair dyeing or hair bleaching - Google Patents

Description

  The present invention is a second agent composition for hair dyeing or hair decoloration that is excellent in emulsification stability and mixing with the first agent, has excellent extensibility when applied to hair, is well-familiar with hair, and has excellent decoloring power. Related to things.

  Conventionally, as a hair dye composition and a hair bleaching agent composition, a two-component type comprising a first agent containing an alkaline agent and a second agent containing an oxidizing agent, or a persulfate as a third agent, etc. Three-part compositions combining these granulated products are known. And in order to improve the hair dyeing power or decoloring power of these hair dye composition and decoloring agent composition, the trial which mix | blends an oil-based component is made | formed. For example, in order to promote the action of the oxidizing agent when alkanolamine is used as the alkali agent, an oil component is blended with the second agent, and the weight ratio of the oil component and the surfactant in the entire composition is set to a certain value or less. In order to suppress deterioration of operability due to the blending of the oil component, the oil component is blended with the second agent and the liquid / solid weight ratio in the oil component is within a certain range. (See Patent Document 2) and the like.

  However, in these techniques, the emulsification stability and the mixing property with the first agent are poor due to the inclusion of a large amount of the oil component in the second agent, and the extensibility is sticky when applied to the hair after mixing. There was a problem that it was difficult to adjust to hair.

Japanese Patent Laid-Open No. 2003-55174 JP 2003-81792 A

  Therefore, the present invention is excellent for emulsification stability and mixing ability with the first agent, is not sticky when applied to hair after mixing, has excellent extensibility, is well-familiar with hair, and has excellent decoloring power or It aims at providing the 2nd agent composition for hair bleaching.

  In the second agent composition, the surfactant contains a non-ionic surfactant having a specific HLB and an oil component at a weight ratio within a certain range, and the emulsified particles are within a certain range. It has been found that the above-mentioned problems can be solved by emulsifying so that the volume average particle diameter is the inner diameter.

That is, this invention is the 2nd agent composition for hair dyeing or hair decoloring as an emulsification composition used by mixing with the 1st agent composition containing an alkaline agent, Comprising: The following components (a)-( c)
(a) Surfactant: 2 to 18% by weight
(b) Oil component: 10-50% by weight
(c) Oxidizing agent: 0.1 to 12% by weight in terms of hydrogen peroxide
A nonionic surfactant (a ₁ ) having at least HLB of 12 to 17 as component (a), and containing 1.5 to 9.5% by weight in the second agent, and a weight ratio of (b) / (a) Is 1-10, and the volume average particle diameter of emulsified particles provides a second agent composition for hair dyeing or for hair bleaching.

  The second agent composition for hair dyeing or hair bleaching of the present invention is excellent in emulsification stability and mixability with the first agent, is non-sticky when applied to hair, has excellent extensibility, and is well adapted to hair, and Excellent decolorization power.

[Component (a): Surfactant]
The surfactant of component (a) is blended to impart emulsification stability to the composition of the present invention and prevent precipitation of oily components. As the surfactant, any of a nonionic surfactant, an anionic surfactant, a cationic surfactant and an amphoteric surfactant can be used, but at least HLB from the viewpoint of better emulsion stability. It is necessary to use 1.5 to 9.5% by weight of the nonionic surfactant (a ₁ ) having an A of 12 to 17 in the second agent. A more preferable content of the component (a ₁ ) is 2 to 8% by weight, particularly 2 to 6% by weight. It is more preferred HLB of component (a ₁₎ is 12 to 16. Here, HLB indicates a calculated value by the Griffin method.

Nonionic surfactants include polyoxyethylene (hereinafter referred to as POE) alkyl ethers, POE alkylphenyl ethers, POE / polyoxypropylene (hereinafter referred to as POP) alkyl ethers, POE sorbitan fatty acid esters, and POE propylene. Examples include glycol fatty acid esters. Among these, POE alkyl ethers, POE alkylphenyl ethers, POE / POP alkyl ethers, POE sorbitan fatty acid esters, and the like are preferable, and POE alkyl ethers are more preferable because they are strong against acids and alkali agents. Specific examples of POE alkyl ethers include POE lauryl ether, POE cetyl ether, POE stearyl ether, and POE behenyl ether. As the component (a ₁ ), one or more of those having an HLB within the above range are used. In addition to the component (a ₁ ), one or more of an anionic surfactant, a cationic surfactant or an amphoteric surfactant can be used in combination.

  Examples of the anionic surfactant include sodium lauryl sulfate, POE sodium lauryl ether sulfate, sodium stearoylmethyl taurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, POE lauryl ether phosphate, and salts thereof.

  Examples of the cationic surfactant include lauryl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide and the like.

  Amphoteric surfactants include 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, Examples include 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, cocoamidopropyl betaine, lauryldimethylaminoacetic acid betaine, and lauramidopropyl betaine. Among these, cocoamidopropyl betaine, lauryldimethylaminoacetic acid betaine, and the like are preferable because they are less irritating to the skin and eyes.

  The content of the surfactant of the component (a) is 2 to 18% by weight, particularly 2 to 12% by weight, particularly 3% in the second agent of the present invention from the viewpoint of stability of the composition and good feel. ~ 10 wt% is preferred.

[Component (b): Oily component]
The oily component of component (b) is blended in order to improve decoloring power and to moisturize the finished hair. The oil component can be divided into a liquid and a solid (including paste) depending on the properties at normal temperature (25 ° C., the same applies hereinafter), and can be arbitrarily selected.

Among the oily components of component (b), those that are liquid at room temperature (b _L ) include hydrocarbon oils, animal and vegetable oils, higher alcohols, higher fatty acids, ester oils, silicone oils, and the like. Examples of the hydrocarbon oil include α-olefin oligomer, light isoparaffin, light liquid isoparaffin, squalane, polybutene, liquid isoparaffin, liquid paraffin and the like. Animal and vegetable oils include olive oil, camellia oil, tea seed oil, sasanqua oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, peanut oil, rapeseed oil, rice bran oil, rice germ oil, wheat germ oil Pearl oil, grape seed oil, almond oil, avocado oil, carrot oil, macadamia nut oil, castor oil, flaxseed oil, coconut oil, mink oil, egg yolk oil, jojoba oil and the like. Examples of the higher alcohol include isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, 2-hexyldecanol, linoleyl alcohol, and linolenyl alcohol. Examples of the higher fatty acid include isostearic acid, oleic acid, linoleic acid and the like. Ester oils include diisopropyl adipate, diisobutyl adipate, dioctyl adipate, di-2-hexyldecyl adipate, diisostearyl adipate, isostearyl myristate, isotridecyl myristate, isopropyl myristate, octyldodecyl myristate, Cetyl octoate, isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, diisopropyl sebacate, isopropyl palmitate, hexyl laurate, decyl oleate, hexyl decyl dimethyloctanoate, octyl palmitate, lauryl lactate, octyldodecyl lactate, stearin Isocetyl acid, isocetyl isostearate, ethylene glycol dioctanoate, dipentaerythritol fatty acid ester, capri Cetyl, glyceryl tricaprylate, neopentyl glycol dicaprate, and diisostearyl malate, and the like. Examples of the silicone oil include methylpolysiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, and alkoxy-modified silicone.

  Among these, hydrocarbon oils, higher alcohols, and silicone oils are preferable because they have a high effect of moisturizing the finished hair.

Among the oily components of component (b), those that are solid at room temperature (b _S ) include hydrocarbons, animal fats, waxes, higher alcohols, higher fatty acids, esters and the like. Examples of hydrocarbons include ozokerite, ceresin, paraffin, polyethylene powder, microcrystalline wax, and petroleum jelly, animal fats include beef tallow and cocoa butter, and waxes include beeswax, candelilla wax, carnauba wax, and lanolin. . Examples of the higher alcohol include myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, lanolin alcohol, and the like. Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, hydroxystearic acid, undecylenic acid, and ricinoleic acid. Examples of the esters include butyl stearate, stearyl stearate, cetyl myristate, myristyl myristate, cetyl palmitate, cetyl lactate, myristyl lactate, lanolin acetate, cholesteryl stearate, cholesteryl oleate, and the like.

  The oily component that is solid at normal temperature is blended in order to provide emulsification stability and obtain an appropriate viscosity in addition to the aforementioned functions. Among these, a linear saturated higher alcohol having 14 to 22 carbon atoms is preferable because of its high effect of imparting emulsion stability.

The oily component of component (b) can be used alone or in combination of two or more, but from the viewpoint of operability and emulsion stability, it is an oily component (b _L ) that is liquid at room temperature and solid at room temperature. the weight ratio of the oil component _{(b S) (b L)} / (b S) is less than 3, and more preferably less than 1 or 3. The total content of component (b) is 10 to 50% by weight in the second agent of the present invention from the viewpoint of high decoloring power and moderate viscosity, and 20 to 40% by weight, particularly 25 to 35% by weight. preferable.

[Component (c): Oxidizing agent]
Examples of the oxidizing agent of component (c) include hydrogen peroxide and hydrogen peroxide generators such as urea peroxide, melamine peroxide, sodium perborate, potassium perborate, sodium percarbonate, potassium percarbonate and the like. In particular, hydrogen peroxide is preferred. The content of the oxidizing agent is 0.1 to 12% by weight in the second agent of the present invention as a hydrogen peroxide conversion amount from the viewpoint of sufficient decolorization / hair dyeing effect and reduction of hair damage and scalp irritation, 0.5 to 9% by weight, particularly 1 to 6% by weight is preferred.

[Medium]
In the second agent composition of the present invention, water and, if necessary, an organic solvent are used as a medium. Examples of organic solvents include lower alkanols such as ethanol and 2-propanol, aromatic alcohols such as benzyl alcohol and benzyloxyethanol, cellosolves such as ethyl cellosolve and butyl cellosolve, and carbitols such as ethyl carbitol and butyl carbitol. Is mentioned.

[Volume average particle diameter]
The second agent composition of the present invention is prepared as an emulsified composition, and the volume average particle size of the emulsified particles is 50 μm or less from the viewpoints of emulsification stability, mixing with the first agent, and compatibility with hair. And is preferably 45 μm or less, particularly preferably 40 μm or less. In addition, the volume average particle diameter of the emulsified particles is preferably 0.1 μm or more, particularly 1 μm or more from the viewpoint of the feeling of use and the conditioning effect. In order to make the second agent composition have the average particle diameter as described above, it can be carried out by selecting temperature conditions and stirring conditions in accordance with the composition using an ordinary emulsion preparation means.

[Dosage form etc.]
The dosage form of the second agent composition of the present invention can be, for example, an emulsion, a cream, a gel, a paste, a mousse or the like, or an aerosol.

[PH]
The pH (25 ° C.) of the second agent composition of the present invention is preferably 2 to 5, and particularly preferably 2 to 4. Examples of the pH adjuster include inorganic acids such as hydrochloric acid and phosphoric acid, citric acid, glycolic acid, and lactic acid. Organic acids, hydrochlorides such as monoethanolamine hydrochloride, phosphates such as monopotassium dihydrogen phosphate and disodium monohydrogen phosphate, and the like.

[Other optional ingredients]
In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the second agent composition of the present invention. Such optional ingredients include polyhydric alcohols, natural or synthetic polymers, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, vitamins, fragrances, UV rays An absorbent is mentioned.

〔how to use〕
The second agent composition of the present invention is used as an oxidant composition in two-component or three-component oxidative hair dyes or hair bleaching agents that are currently widely used. That is, the second agent composition of the present invention can be combined with a first agent containing an alkaline agent to form a two-component hair dye composition or a hair bleaching agent, or a persulfate. A three-component hair dye composition or a hair bleaching agent is also obtained by combining a third agent, which is a powdery oxidizer made of a granulated product such as ammonium persulfate, potassium persulfate, sodium persulfate, etc. be able to.

-1st agent When the said 1st agent contains a dye, it becomes a two-component hair dye composition, and when a 1st agent does not contain a dye, it becomes a two-component hair bleaching agent. As the dye, an oxidation dye intermediate and a direct dye that are used in ordinary hair dyes can be arbitrarily used. Alkali agents include ammonia and salts thereof; alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, and 2-aminobutanol and salts thereof; alkanediamines such as 1,3-propanediamine And salts thereof; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, and ammonium carbonate; bicarbonates such as sodium bicarbonate, potassium bicarbonate, and ammonium bicarbonate. In addition, the 1st agent can be made to contain the component used as a normal cosmetic raw material similar to what was mentioned about the 2nd agent.

  The pH (25 ° C.) of the first agent is preferably 8 to 12, particularly 9 to 11, and the total composition at the time of use (mixing) is 8 to 12 from the viewpoint of decolorization / hair dyeing effect and skin irritation. In particular, 8 to 10 is preferable.

-Treatment method In order to dye or decolorize hair using the second agent composition of the present invention, for example, the second agent and the first agent of the present invention (or the third agent in the case of a three-agent type) immediately before use. After mixing, it is applied to the hair, left for a predetermined time, rinsed and dried. The application temperature to the hair is preferably 15 to 45 ° C., the application time is 3 to 45 minutes, more preferably 5 to 30 minutes, and particularly preferably 10 to 30 minutes.

Examples 1-5 and Comparative Examples 1-6
The second agent shown in Table 1 was prepared, its “emulsified particle size” was measured, and “emulsification stability” as well as “the first agent when mixed with the first agent of the following formulation” “Mixability”, “easy to apply”, “light color” and “dyeability” were evaluated.

First agent
(weight%)
Toluene-2,5-diamine 0.40
p-Aminophenol 0.60
m-aminophenol 0.30
Stearyltrimethylammonium chloride (28% by weight) 3.00
Polyoxyethylene (2) cetyl ether 0.50
Polyoxyethylene (40) cetyl ether 2.00
Stearyl alcohol 6.00
Oleyl alcohol 1.00
Propylene glycol 3.00
Ascorbic acid 0.50
Strong ammonia water (28% by weight) 6.00
Purified water remaining

[Measurement and evaluation methods]
(1) Emulsified particle diameter The average particle diameter (volume basis) was measured using a laser diffraction / scattering particle size distribution analyzer LA-910 (manufactured by Horiba, Ltd.). The measurement conditions were a relative refractive index of 1.20-0.00i and a number of uptakes of 15 times.

(2) Emulsification stability The emulsified state of the composition at the time of preparation of the second agent was observed and evaluated according to the following criteria. The evaluation was performed by 10 expert panelists, and the average value was shown.
3: Emulsions with uniform and moderate viscosity 2: Slightly non-uniform emulsions 1: Unemulsifiable

(3) Mixability with the first agent The first agent and the second agent were weighed in equal amounts in a container, mixed, and evaluated for ease of mixing. The evaluation was performed by 10 expert panelists, and the average value was shown.
5: Easy to mix 4: Slightly easy to mix 3: Not easy to say 2: Slightly difficult to mix 1: Difficult to mix

(4) Ease of application An equal mixture of the first agent and the second agent was applied to the wig using a brush, and the ease of application was evaluated. The evaluation was performed by 10 expert panelists, and the average value was shown.
5: Very easy to apply 4: Slightly easy to apply 3: Neither can be applied 2: Slightly difficult to apply 1: Very difficult to apply

(5) Brightness An equal amount mixture of the first and second agents was applied to the black hair tress at a bath ratio of 1: 1, allowed to stand for 30 minutes, then washed with water and shampooed. After drying, the lightness of the tress was measured with a Minolta CR400 color difference meter, and the difference (Δb) in b value from before dyeing was measured and evaluated.

(6) Dyeability After using a gray hair trace and performing the dyeing process in the same manner as in (5), color measurement with a Minolta CR400 color difference meter to measure the color difference (ΔE) with the gray hair trace before dyeing, evaluated.

Claims (1)

A second agent composition for hair dyeing or hair bleaching as an emulsified composition used by mixing with a first agent composition containing an alkaline agent, comprising the following components (a) to (c)
(a) Surfactant: 2 to 18% by weight
(b) Oil component: 10-50% by weight
(c) Oxidizing agent: 0.1 to 12% by weight in terms of hydrogen peroxide
A nonionic surfactant (a ₁ ) having an HLB of 12 to 17 and lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyl bromide It comprises at least one cationic surfactant selected from the group consisting of trimethylammonium and stearyltrimethylammonium bromide , the content of (a ₁ ) in the second agent is 1.5 to 6% by weight, and the component (b ) In which the weight ratio (b _L ) / (b _S ) of the oily component (b _L ) which is liquid at normal temperature to the oily component (b _S ) which is solid at normal temperature is 1 or more and less than 3, (b) / (a ) Weight ratio of 1 to 10, and the volume average particle diameter of the emulsified particles is 50 μm or less, the second agent composition for hair dyeing or hair bleaching.