JP2021100980A - Second agent composition of aerosol type hair dyeing or hair decolorizing agent - Google Patents

Abstract

To provide second agent compositions which can achieve stable discharge of an agent from an aerosol container and give stable hair dyeing/decolorizing effect, by keeping the viscosity constant from before filling the aerosol container with the agent to after discharging from the aerosol container, without using an ionic surfactant if possible.SOLUTION: A second composition for an aerosol type hair dyeing or decolorizing agent for using in mixing with a first agent composition containing an alkaline agent contains the following component (A) to (D), the total mass ratio [(C)+(D)]/(B) of the component (C) and (B) with respect to the component (B) being 1.0 or more to 3.5 or less, and the mass ratio (D)/(C) of the component (D) with respect to the component (C) being 1.2 or more to 2.2 or less. (A): Hydrogen peroxide; (B): nonionic surfactant; (C): higher alcohol; and (D): hydrocarbon.SELECTED DRAWING: None

Description

The present invention relates to a second agent composition of an aerosol-type hair dye or a hair bleaching agent.

Conventionally, it is composed of a first agent containing an alkaline agent and a second agent containing an oxidizing agent, and the first agent and the second agent are stored in aerosol containers independent of each other, and they are discharged and mixed at the time of use. There are known two-agent aerosol-type hair dyes or hair bleaching agents used in the above (Patent Documents 1 and 2).

In such a two-part aerosol form product, it is generally known that a high shearing force is applied to the agent when the agent is filled in the aerosol container or when the agent is discharged from the aerosol container in manufacturing the product. ing.

Japanese Unexamined Patent Publication No. 2000-297018 Japanese Unexamined Patent Publication No. 2004-091359

However, since the shearing force applied to the agent during filling and discharging is very strong, the emulsified structure of the agent may be changed, and the viscosity of the agent may be lower than the initially set viscosity when used. Such a decrease in the viscosity of the agent causes a change in the discharge amount of the agent from the aerosol container. In particular, in the two-agent aerosol form hair dye or hair bleaching agent, the discharge amount of the first agent discharged from the first agent container and the discharge amount of the first agent discharged from the second agent container due to the above-mentioned viscosity change. The discharge amount of the two agents may be significantly different, and a stable hair dyeing / bleaching effect may not be obtained.

In addition, in aerosol-type hair dyes / decolorizers, if hydrogen peroxide and a cationic surfactant (in many cases, the counterion is chloride ion) are used as the second agent, the metal container may corrode. In order to suppress this, it is necessary to select the inner bag and inner surface coat of the metal container, which requires a great deal of labor, and when an anionic surfactant is used as the second agent, the feel of the hair deteriorates and the pH is low. There is also a problem that it is difficult to use an ionic surfactant because of the possibility of decomposition of the ionic surfactant.

Therefore, the present invention stabilizes the agent from the aerosol container by keeping the viscosity constant from before filling the aerosol container to after discharging the agent from the aerosol container without using an ionic surfactant as much as possible. The present invention relates to a second agent composition capable of realizing discharge and obtaining a stable hair dyeing / bleaching effect.

As a result of diligent studies, the present inventor reduced the emulsion particle size in the second agent of the aerosol-type hair dye or hair bleaching agent in order to keep the viscosity of the agent constant without using an ionic surfactant as much as possible. Furthermore, it has been found that it is effective to add a nonionic surfactant, a higher alcohol and a hydrocarbon in a specific ratio for that purpose.

The present invention is an aerosol-type second agent composition for hair dyeing or hair bleaching used in combination with a first agent composition containing an alkaline agent, and contains the following components (A) to (D). , The total mass ratio of the component (C) and (D) to the component (B) [(C) + (D)] / (B) is 1.0 or more and 3.5 or less, and the component (D) to the component (C) The present invention provides a second agent composition for aerosol-type hair dyeing or hair bleaching, which has a mass ratio (D) / (C) of 1.2 or more and 2.2 or less.
(A) Hydrogen peroxide
(B) Nonionic surfactant
(C) Higher alcohol
(D) Hydrocarbons

The second agent composition of the present invention can be stably discharged from the aerosol container because the viscosity reduction due to filling and discharging into the aerosol container is suppressed and the viscosity is kept constant, and the aerosol type dyeing is performed together with the first agent. When used as a hair agent or a bleaching agent, a stable hair dyeing / bleaching effect can be obtained.

[Second agent composition]
The second agent composition of the present invention is used as an aerosol-type hair dye or a hair bleaching agent in combination with the first agent composition containing an alkaline agent.

[Component (A): Hydrogen peroxide]
The second agent composition of the present invention contains hydrogen peroxide as a component (A). The content of hydrogen peroxide in the second agent composition is preferably 1% by mass or more, more preferably 3% by mass or more, and suppresses irritation to the scalp, from the viewpoint of obtaining sufficient decolorizing power. From the viewpoint, it is preferably 9% by mass or less, more preferably 6% by mass or less.

[Component (B): Nonionic surfactant]
The second agent composition of the present invention contains a nonionic surfactant as the component (B). Examples of the component (B) include polyoxyalkylene alkyl ethers, alkyl alkanolamides, polyoxyalkylene alkyl amines, alkyl polyglucosides, alkyl glyceryl ethers and the like. Among these, polyoxyalkylene alkyl ether is preferable, and polyoxyethylene alkyl ether is more preferable, from the viewpoint of keeping the viscosity of the second agent composition constant.

As the polyoxyethylene alkyl ether, those represented by the following general formula (1) can be used.

R ¹ -O- (CH ₂ CH ₂ -O) _m -H (1)
[In the formula, R ¹ represents a saturated or unsaturated hydrocarbon group of a linear or branched chain having 8 or more and 22 or less carbon atoms, and m represents a number of 1 or more and 100 or less on average. ]

In the general formula (1), ^{the carbon number of R 1} is 8 or more, preferably 10 or more, more preferably 12 or more, and more preferably 12 or more, from the viewpoint of the solubility of the dye contained in the hair dye. It is 22 or less, preferably 20 or less, and more preferably 18 or less. The component (B) can be used alone or in combination of two or more.

From the viewpoint of the stability of the second agent composition, the component (B) has m in the general formula (1) of (B-1) 1 or more and less than 30, and (B-2) 30 or more and 100. It is preferably a combination of the following, and more preferably a combination of (B-1) 1 or more and 20 or less and (B-2) 35 or more and 60 or less. B-1) A combination of 1 or more and 10 or less and (B-2) 35 or more and 45 or less is more preferable. The mass ratio of the component (B-1) to the component (B-2) [(B-1) :( B-2)] is preferably 0.5: 9.5 to 5 from the viewpoint of the stability of the second agent composition. It is 4: 1, more preferably 1: 9 to 3: 2, still more preferably 1.5: 8.5 to 1: 1, and even more preferably 1: 4 to 2: 3.

The content of the component (B) in the second agent composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, still more preferably 2% by mass, from the viewpoint of keeping the viscosity of the second agent composition constant. % Or more, more preferably 3% by mass or more, still more preferably 5% by mass or more, still more preferably 7% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably 10%. It is 9% by mass or less, more preferably 9% by mass or less.

[Ingredient (C): higher alcohol]
The second agent composition of the present invention contains a higher alcohol as the component (C). As the component (C), a component represented by the following general formula (2) can be used.

R ² -OH (2)
[In the formula, R ² represents a linear or branched hydrocarbon group having 12 or more and 24 or less carbon atoms. ]

Examples of the component (C) include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol, carnervir alcohol, oleyl alcohol and the like. The component (C) can be used alone or in combination of two or more.

^{The component (C) is a linear alkyl group in which R 2} in the general formula (2) is (C-1) 12 to 18 carbon atoms from the viewpoint of keeping the viscosity of the second agent composition constant. And (C-2) a linear alkyl group having 20 or more and 24 or less carbon atoms are preferable, and (C-1) a linear alkyl group having 14 or more and 18 or less carbon atoms. , (C-2) It is more preferable to use a combination with a linear alkyl group having 20 or more and 22 or less carbon atoms. The mass ratio of the component (C-1) to the component (C-2) [(C-1): (C-2)] is preferably 0.5: from the viewpoint of keeping the viscosity of the second agent composition constant. 9.5 to 9.5: 0.5, more preferably 1: 9 to 9: 1, still more preferably 1.5: 8.5 to 8.5: 1.5, still more preferably 1: 4 to 4: 1, still more preferably 1: 3 to 3: 1. is there.

The content of the component (C) in the second agent composition is preferably 0.5% by mass or more, more preferably 0.8% by mass or more, still more preferably 1.0% by mass, from the viewpoint of keeping the viscosity of the second agent composition constant. % Or more, more preferably 2% by mass or more, still more preferably 3% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, still more preferably 15. It is mass% or less, more preferably 10 mass% or less, still more preferably 8 mass% or less.

[Component (D): Hydrocarbon]
The second agent composition of the present invention contains a hydrocarbon as a component (D). The hydrocarbon of the component (D) used in the present invention is preferably liquid at 25 ° C., for example, liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, squalane and the like. Be done. Among these, liquid paraffin is preferable from the viewpoint of keeping the viscosity of the second agent composition constant. The component (D) can be used alone or in combination of two or more.

The content of the component (D) in the second agent composition is preferably 3% by mass or more, more preferably 5% by mass or more, and preferably from the viewpoint of improving the brightness after hair dyeing or bleaching. Is 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, still more preferably 15% by mass or less, still more preferably 12% by mass or less.

Further, the total mass ratio of the components (C) and (D) to the component (B) in the second agent composition [(C) + (D)] / (B) is the viscosity of the second agent composition. From the viewpoint of keeping it constant, it is 1.0 or more, preferably 1.2 or more, more preferably 1.5 or more, and 3.5 or less, preferably 3.3 or less, more preferably 3.2 or less.

Further, the mass ratio (D) / (C) of the component (D) to the component (C) in the second agent composition is 1.2 or more from the viewpoint of keeping the viscosity of the second agent composition constant. It is preferably 1.3 or more, 2.2 or less, and preferably 2.1 or less.

[Component (E): Cationic surfactant]
The second agent composition of the present invention may contain a cationic surfactant as the component (E). As the cationic surfactant of the component (E), monoalkyltrimethylammonium chloride and monoalkyltrimethylammonium bromide are preferable, and among them, stearyltrimethylammonium chloride (stealtrimonium chloride), cetyltrimethylammonium chloride (cetrimonium chloride), Lauryl trimethyl ammonium chloride (lauryl trimonium chloride) can be used. The component (E) can be used alone or in combination of two or more.

The content of the component (E) in the second agent composition is preferably 0.001% by mass or less, more preferably 0.0005% by mass or less, and further the component (E) from the viewpoint of preventing corrosion of the metal container. It is preferable not to contain it.

[Component (F): Hydroxyethanediphosphonic acid]
The second agent of the present invention may contain hydroxyethanediphosphonic acid as a component (F). The content of the component (F) in the second agent composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.10% by mass or more, and further, from the viewpoint of stabilizing hydrogen peroxide. It is preferably 0.3% by mass or more, preferably 2% by mass or less, more preferably 1.5% by mass or less, and further preferably 1% by mass or less.

[PH]
The pH (25 ° C.) of the second agent composition of the present invention is preferably 2 or more, more preferably 2.5 or more, and preferably 6 or less, more preferably 4 from the viewpoint of suppressing the decomposition of hydrogen peroxide. It is as follows. Examples of the pH adjuster include inorganic acids such as hydrochloric acid and phosphoric acid; organic acids such as citric acid, glycolic acid and lactic acid; and phosphates such as monopotassium dihydrogen phosphate and disodium monohydrogen phosphate.

〔viscosity〕
The viscosity of the second agent composition of the present invention before being filled in the aerosol container (hereinafter referred to as “viscosity 1”) is preferably 5,000 mPa · s or more, more preferably 10,000 mPa · s, from the viewpoint of formulation stability. s or more, more preferably 15,000 mPa · s or more, further preferably 20,000 mPa · s or more, further preferably 25,000 mPa · s or more, and preferably 100,000 mPa · s or less, more preferably 90,000 mPa · s or less, It is more preferably 80,000 mPa · s or less, further preferably 70,000 mPa · s or less, still more preferably 50,000 mPa · s or less.

One month after filling the inner bag with the second agent composition of the present invention, the viscosity immediately after discharging the second agent composition from the second container (hereinafter referred to as "viscosity 2") is the stability of the formulation. From this point of view, it is preferably 5,000 mPa · s or more, more preferably 10,000 mPa · s or more, further preferably 15,000 mPa · s or more, further preferably 20,000 mPa · s or more, still more preferably 25,000 mPa · s or more. Further, it is preferably 100,000 mPa · s or less, more preferably 90,000 mPa · s or less, further preferably 80,000 mPa · s or less, still more preferably 70,000 mPa · s or less, still more preferably 50,000 mPa · s or less.

The ratio of viscosity 2 to viscosity 1 (viscosity 2 / viscosity 1) is preferably 0.80 or more, more preferably 0.85 or more, still more preferably 0.90 or more, still more preferably 0.93 or more, from the viewpoint of formulation stability. It is preferably 1.25 or less, more preferably 1.20 or less, still more preferably 1.15 or less, still more preferably 1.13 or less.

The viscosity (25 ° C.) of the second agent composition of the present invention is a value after being rotated at 10 rpm for 1 minute using a B-type viscometer with a helical stand and a T-C rotor.

[Volume average diameter of emulsified particles in the second agent composition]
The volume average diameter of the emulsified particles before filling the inner bag with the second agent composition of the present invention is preferably 0.05 μm or more, more preferably 0.10 μm or more, and preferably 23 μm or less from the viewpoint of keeping the viscosity constant. It is more preferably 20 μm or less, still more preferably 15 μm or less, still more preferably 12 μm or less, still more preferably 10 μm or less.

By setting the above range, the viscosity of the second agent composition discharged from the second container can be kept constant in any temperature range.

Here, the volume average diameter of the emulsified particles in the second agent composition uses a dynamic light scattering type particle size distribution measuring device manufactured by HORIBA, and the sample is set to "Organic sample" (refractive index: 1.600-0.000i). , The setting of the dispersion medium is a value obtained by selecting "Water" (refractive index: 1.333) and measuring the volume distribution of the average diameter of the second agent.

[First agent composition]
The second agent composition of the present invention is used as an aerosol-type hair dye or a hair bleaching agent in combination with the first agent composition containing an alkaline agent.

[Alkaline agent]
The first agent composition contains an alkaline agent. Examples of the alkaline agent include ammonia and salts thereof (for example, ammonium hydrogen carbonate); alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, and 2-aminobutanol and salts thereof; 1,3-propanediamine. Alcandiamine and salts thereof; examples thereof include guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, carbonates such as potassium hydrogen carbonate and the like. These alkaline agents can be used alone or in combination of two or more.

The content of the alkaline agent in the first agent composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, still more preferably 2 from the viewpoint of sufficient hair dyeing effect. It is preferably 15% by mass or less, more preferably 10% by mass or less, and further preferably 7% by mass or less from the viewpoint of reducing hair damage and scalp irritation.

〔dye〕
When the second agent composition of the present invention is a second agent for a hair dye, the first agent composition may contain an oxidative dye intermediate or a direct dye.

(Oxidation dye intermediate)
As the oxidation dye intermediate, known precursors and couplers usually used for hair dyes can be used. Examples of precursors include para-phenylenediamine, toluene-2,5-diamine, orthochloropara-phenylenediamine, N-phenylpara-phenylenediamine, N, N-bis (hydroxyethyl) para-phenylenediamine, 3-methyl-4-amino. Examples thereof include phenol, 2-hydroxyethyl para-phenylenediamine, para-aminophenol, paramethyl aminophenol, 4-amino-methacresol, ortho-aminophenol, and salts thereof.

Examples of couplers include resorcin, 2-methylresorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 5-aminooltocresol, metaphenylenediamine, orthoaminophenol, metaaminophenol, paraaminophenol, 2,4-. Examples thereof include diaminophenoxyethanol, 2,6-diaminopyridine, 2-methyl-5-hydroxyethylaminophenol, 2-amino-3-hydroxypyridine, and salts thereof.

The precursor and the coupler can be used alone or in combination of two or more, and the content of each of the precursor and the coupler in the first agent composition is preferably 0.01% by mass or more, more preferably 0.1% by mass or more. It is preferably 5% by mass or less, more preferably 4% by mass or less.

(Direct dye)
Examples of direct dyes include acid dyes, nitro dyes, disperse dyes, and basic dyes. More specifically, examples of acidic dyes include blue No. 1, purple No. 401, black No. 401, orange 205, red 227, red 106, yellow 203, acidic orange 3, and the like, and nitro dyes. As 2-nitro-p-phenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitro-o-phenylenediamine, 4-amino-3 -Nitrophenol, 4-Hydroxypropylamino-3-nitrophenol, HC Blue 2, HC Orange 1, HC Red 1, HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Red 3, N, N-Bis (2) -Hydroxyethyl) -2-nitro-p-phenylenediamine and the like, examples of the dispersed dye include dispersed purple 1, dispersed blue 1, dispersed black 9, and the like, and examples of the basic dye include basic blue 99. Examples thereof include basic tea 16, basic tea 17, basic red 76, basic yellow 76, basic orange 31, and basic red 51.

The direct dye can be used alone or in combination of two or more, and may be used in combination with an oxidation dye intermediate. The content of the direct dye in the first agent is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less.

[Other ingredients in the first agent]
In addition to the above alkaline agents and dyes, the first agent may contain components that can be usually used in the art.

[Form of aerosol container]
As the aerosol container that can be used in the present invention, (1) a double-type aerosol container in which the inner bag containing the first agent and the inner bag containing the second agent are housed in independent aerosol containers (for example, (Container described in JP-A-2000-297018), (2) A dual aerosol container in which each of the inner bag containing the first agent and the inner bag containing the second agent is stored in one aerosol container (2) For example, the container described in Japanese Patent Application Laid-Open No. 2013-43659).

The inner bag is preferably elastic, and is made of a synthetic resin such as high-density or low-density polyethylene, ethylene / vinyl acetate copolymer saponified product, polyethylene terephthalate, polypropylene, polyacrylonitrile, or a laminated product thereof. Is used, and the one having low injection gas permeability is preferable. Further, the inner surface of the inner bag can be coated with a chemical resistant resin and used.

The propellant gas used in the present invention is not particularly limited as long as it is generally used for aerosol products such as dimethyl ether, liquefied petroleum gas, nitrogen gas, and CFC substitutes. Of these, nitrogen gas is preferable from the viewpoint of preventing deterioration.

[Dosage form]
The dosage form of the second agent composition of the present invention when discharged from the aerosol container can be cream-like, gel-like, paste-like, foam-like or the like.

[Manufacturing method of aerosol type hair dye or hair bleaching agent]
An aerosol-type hair dye or hair bleaching agent can be produced by filling an aerosol container with the first agent composition containing an alkaline agent and the second agent composition of the present invention, respectively. At this time, it is preferable to adjust the viscosity of the second agent composition of the present invention to the above-mentioned viscosity range, that is, 5,000 mPa · s or more and 100,000 mPa · s or less, and then fill the aerosol container.

[Hair dyeing tools]
The aerosol-type hair dye or bleaching agent of the present invention can be applied to hair using a hair dyeing tool. As the hair dyeing tool, a hair dyeing tool having a brush portion and a comb portion as described in Japanese Patent Application Laid-Open No. 2006-326081 can be used.

The preferred embodiments of the present invention will be further disclosed below with respect to the above-described embodiments.

<1> An aerosol-type second agent composition for hair dyeing or hair bleaching used in combination with a first agent composition containing an alkaline agent, which contains the following components (A) to (D) and contains the following components (A) to (D). The total mass ratio of component (C) and (D) to component (B) [(C) + (D)] / (B) is 1.0 or more and 3.5 or less, and the mass of component (D) to component (C). A second agent composition for aerosol-type hair dyeing or hair bleaching having a ratio (D) / (C) of 1.2 or more and 2.2 or less.
(A) Hydrogen peroxide
(B) Nonionic surfactant
(C) Higher alcohol
(D) Hydrocarbons

<2> The content of the component (A) in the second agent composition is preferably 1% by mass or more, more preferably 3% by mass or more, and preferably 9% by mass or less, more preferably 6% by mass. % Or less. The second agent composition according to <1>.

<3> The second agent composition according to <1> or <2>, wherein the component (B) is preferably a polyoxyethylene alkyl ether represented by the following general formula (1).
R ¹ -O- (CH ₂ CH ₂ -O) _m -H (1)
[In the formula, R ¹ represents a saturated or unsaturated hydrocarbon group of a linear or branched chain having 8 or more and 22 or less carbon atoms, and m represents a number of 1 or more and 100 or less on average. ]

^{<4> The carbon number of R 1 in} the general formula (1) is preferably 10 or more, more preferably 12 or more, and preferably 20 or less, more preferably 18 or less, according to <3>. Second agent composition.

<5> The component (B) is preferably a polyoxyethylene alkyl ether in which m in (B-1) general formula (1) is 1 or more and less than 30, and m in (B-2) general formula (1). A combination with a polyoxyethylene alkyl ether having a value of 30 or more and 100 or less, more preferably a polyoxyethylene alkyl ether having m of 1 or more and 20 or less in (B-1) general formula (1) and (B-2). Combination with polyoxyethylene alkyl ether having m in the general formula (1) of 35 or more and 60 or less, more preferably polyoxyethylene having m in the general formula (1) of 1 or more and 10 or less. The second agent composition according to <3> or <4>, which is a combination of an alkyl ether and a polyoxyethylene alkyl ether in which m in (B-2) general formula (1) is 35 or more and 45 or less.

<6> The mass ratio of the component (B-1) to the component (B-2) [(B-1) :( B-2)] is preferably 0.5: 9.5 to 4: 1, more preferably 1: 1. The second agent composition according to <5>, which is 9 to 3: 2, more preferably 1.5: 8.5 to 1: 1, and even more preferably 1: 4 to 2: 3.

<7> The content of the component (B) in the second agent composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, still more preferably 2% by mass or more, still more preferably 3% by mass or more. It is more preferably 5% by mass or more, further preferably 7% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably 10% by mass or less, still more preferably 9% by mass or less. The second agent composition according to any one of <1> to <6>.

<8> The second agent composition according to any one of <1> to <7>, wherein the component (C) is a higher alcohol represented by the following general formula (2).
R ² -OH (2)
[In the formula, R ² represents a straight or branched hydrocarbon group having 12 to 24 carbon atoms. ]

^{<9> The component (C) is preferably a higher alcohol in which R 2} in the general formula (2) of (C-1) is a linear hydrocarbon group having 12 to 18 carbon atoms and (C-2) general. ^{A combination of higher alcohols in which R 2} in formula (2) is a linear hydrocarbon group having 20 or more and 24 or less carbon atoms, more preferably R ^{2 in} (C-1) general formula (2) has carbon atoms. A higher alcohol which is a linear hydrocarbon group of 14 to 18 or less and a higher alcohol whose R ^{2 in} (C-2) general formula (2) is a linear hydrocarbon group having 20 or more and 22 or less carbon atoms. The second agent composition according to <8>, which is a combination.

<10> The mass ratio of the component (C-1) to the component (C-2) [(C-1): (C-2)] is preferably 0.5: 9.5 to 9.5: 0.5, more preferably 1: 1. The second agent according to <9>, which is 9 to 9: 1, more preferably 1.5: 8.5 to 8.5: 1.5, still more preferably 1: 4 to 4: 1, still more preferably 1: 3 to 3: 1. Composition.

<11> The content of the component (C) in the second agent composition is preferably 0.5% by mass or more, more preferably 0.8% by mass or more, still more preferably 1.0% by mass or more, still more preferably 2% by mass or more. It is more preferably 3% by mass or more, preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, still more preferably 15% by mass or less, still more preferably 10% by mass or less. The second agent composition according to any one of <1> to <10>, more preferably 8% by mass or less.

<12> The second agent composition according to any one of <1> to <11>, wherein the component (D) is a hydrocarbon liquid preferably at 25 ° C.

<13> The item according to <12>, wherein the component (D) is at least one selected from the group consisting of liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin and squalane. Two-agent composition.

<14> The content of the component (D) in the second agent composition is preferably 3% by mass or more, more preferably 5% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass. % Or less, more preferably 20% by mass or less, still more preferably 15% by mass or less, still more preferably 12% by mass or less, the second agent composition according to any one of <1> to <13>.

<15> The total mass ratio of the components (C) and (D) to the component (B) in the second agent composition [(C) + (D)] / (B) is preferably 1.2 or more, more preferably. The second agent composition according to any one of <1> to <14>, wherein is 1.5 or more, preferably 3.3 or less, and more preferably 3.2 or less.

<16> The mass ratio (D) / (C) of the component (D) to the component (C) in the second agent composition is preferably 1.3 or more, and preferably 2.1 or less, <1>. The second agent composition according to any one of ~ <15>.

<17> Further, a cationic surfactant can be contained as the component (E) in a range of 0.001% by mass or less, more preferably 0.0005% by mass or less in the second agent composition, and further. The second agent composition according to any one of <1> to <16>, preferably containing no component (E).

<18> The second agent composition according to any one of <1> to <17>, preferably further containing hydroxyethanediphosphonic acid as a component (F).

<19> The content of the component (F) in the second agent composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.10% by mass or more, still more preferably 0.3% by mass or more. The second agent composition according to <18>, which is preferably 2% by mass or less, more preferably 1.5% by mass or less, still more preferably 1% by mass or less.

<20> The pH at 25 ° C. is preferably 2 or more, more preferably 2.5 or more, and preferably 6 or less, more preferably 4 or less, according to any one of <1> to <19>. Second agent composition.

<21> The viscosity before filling in the aerosol container is preferably 5,000 mPa · s or more, more preferably 10,000 mPa · s or more, further preferably 15,000 mPa · s or more, still more preferably 20,000 mPa · s or more, still more preferable. Is 25,000 mPa · s or more, preferably 100,000 mPa · s or less, more preferably 90,000 mPa · s or less, still more preferably 80,000 mPa · s or less, still more preferably 70,000 mPa · s or less, still more preferably 50,000 mPa. -The second agent composition according to any one of <1> to <20>, which is s or less.

<22> The viscosity immediately after filling the inner bag and discharging it from the second container one month later is preferably 5,000 mPa · s or more, more preferably 10,000 mPa · s or more, still more preferably 15,000 mPa · s or more. More preferably 20,000 mPa · s or more, further preferably 25,000 mPa · s or more, and preferably 100,000 mPa · s or less, more preferably 90,000 mPa · s or less, still more preferably 80,000 mPa · s or less, still more preferably. The second agent composition according to any one of <1> to <21>, which is 70,000 mPa · s or less, more preferably 50,000 mPa · s or less.

<23> The ratio (viscosity 2 / viscosity 1) of the viscosity (viscosity 2) immediately after filling the inner bag and discharging it from the second container one month after filling the aerosol container with the viscosity (viscosity 1) is It is preferably 0.80 or more, more preferably 0.85 or more, still more preferably 0.90 or more, still more preferably 0.93 or more, and preferably 1.25 or less, more preferably 1.20 or less, still more preferably 1.15 or less, still more preferably 1.13 or less. The second agent composition according to any one of <1> to <22>.

<24> The volume average diameter of the emulsified particles of the second agent composition before filling in the inner bag is preferably 0.05 μm or more, more preferably 0.10 μm or more, more preferably 23 μm or less, still more preferably 20 μm or less, and further. The second agent composition according to any one of <1> to <23>, preferably 15 μm or less, more preferably 12 μm or less, still more preferably 10 μm or less.

Example 1, Comparative Example 1
A second agent composition having a formulation shown in Table 1 was prepared. Next, the inner bag of the second container of the dual aerosol was filled with the second agent composition, and nitrogen gas was filled between the inner bag and the second agent container. The viscosity and volume average diameter of the second agent composition were measured by the methods shown below.

(Viscosity measurement method)
The viscosity of the second agent composition was measured at two time points, one before filling the container and one immediately after discharging from the container one month after filling the container. For the viscosity (25 ° C), use a B-type viscometer with a helical stand (manufactured by Toki Sangyo Co., Ltd., model TVB-10R, T-BAR STAGE TS-10) and rotate at 10 rpm for 1 minute using a TC rotor. It is the value after.

(Measurement method of volume average diameter of emulsified particles)
For the volume average diameter of the emulsified particles, use DYNAMIC LIGHT SCATTERING PARTICLE SIZE ANALYZER LB-500 made by HORIBA, set the sample to "Organic sample" (refractive index: 1.600-0.000i), and set the dispersion medium to "Water" (. It is a value obtained by selecting the refractive index: 1.333) and measuring the volume distribution of the average diameter of the emulsified particles.

Examples 2-7, Comparative Examples 2-5
A second agent composition having the formulation shown in Tables 2 and 3 was prepared. The volume average diameter of the emulsified particles of the second agent composition was measured by the above-mentioned method.

Claims (14)

An aerosol-type second agent composition for hair dyeing or hair bleaching used in combination with a first agent composition containing an alkaline agent, which contains the following components (A) to (D) and contains the following components (B). ) To the total mass ratio of the component (C) and (D) [(C) + (D)] / (B) is 1.0 or more and 3.5 or less, and the mass ratio (D) of the component (D) to the component (C) ) / (C) is 1.3 or more and 2.1 or less, and the viscosity immediately after being discharged from the container is 10,000 mPa · s or more and 100,000 mPa · s or less.
(A) Hydrogen peroxide
(B) Nonionic surfactant
(C) Higher alcohol
(D) Hydrocarbons The second agent composition according to claim 1, wherein the component (B) is a polyoxyethylene alkyl ether represented by the following general formula (1).
R ¹ -O- (CH ₂ CH ₂ -O) _m -H (1)
[In the formula, R ¹ represents a saturated or unsaturated hydrocarbon group of a linear or branched chain having 8 or more and 22 or less carbon atoms, and m represents a number of 1 or more and 100 or less on average. ] The components (B) are polyoxyethylene alkyl ether in which m in (B-1) general formula (1) is 1 or more and less than 30, and m in (B-2) general formula (1) is 30 or more and 100 or less. The second agent composition according to claim 2, which is a combination with polyoxyethylene alkyl ether. The second aspect of claim 3, wherein the mass ratio of the component (B-1) to the component (B-2) [(B-1) :( B-2)] is 0.5: 9.5 to 4: 1. Agent composition. The second agent composition according to any one of claims 1 to 4, wherein the content of the component (B) in the second agent composition is 0.5% by mass or more and 15% by mass or less. The second agent composition according to any one of claims 1 to 5, wherein the component (C) is a higher alcohol represented by the following general formula (2).
R ² -OH (2)
[In the formula, R ² represents a straight or branched hydrocarbon group having 12 to 24 carbon atoms. ] ^{The component (C) is a higher alcohol in which R 2} in (C-1) general formula (2) is a linear hydrocarbon group having 12 or more and 18 or less carbon atoms, and in (C-2) general formula (2). The second agent composition according to claim 6, wherein R ² is a combination of higher alcohols which are linear hydrocarbon groups having 20 or more and 24 or less carbon atoms. The second item according to claim 7, wherein the mass ratio [(C-1): (C-2)] of the component (C-1) to the component (C-2) is 0.5: 9.5 to 9.5: 0.5. Agent composition. The second agent composition according to any one of claims 1 to 8, wherein the content of the component (C) in the second agent composition is 0.5% by mass or more and 30% by mass or less. The item according to any one of claims 1 to 9, wherein the component (D) is at least one selected from the group consisting of liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin and squalane. Two-agent composition. The second agent composition according to any one of claims 1 to 10, wherein the content of the component (D) in the second agent composition is 3% by mass or more and 30% by mass or less. The second agent composition according to any one of claims 1 to 11, further comprising a cationic surfactant as a component (E) in the range of 0.001% by mass or less in the second agent composition. The second agent composition according to any one of claims 1 to 12, further comprising hydroxyethanediphosphonic acid as a component (F). Any of claims 1 to 13, wherein the ratio (viscosity 2 / viscosity 1) of the viscosity (viscosity 2) immediately after being discharged from the container to the viscosity (viscosity 1) before filling the aerosol container is 0.80 or more and 1.25 or less. The second agent composition described in Crab.