JP2017171582A - Aerosol type hair dyeing kits - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide aerosol type hair dyeing kits that can apply as aimed a hair dye to a gray hair portion at the root about which is anxious while mixing a first agent composition and a second agent composition easily.SOLUTION: An aerosol type hair dyeing kit consists of a first agent composition for aerosol hair dyeing containing a cationic surfactant, nonionic surfactant, higher alcohol, liquid oil solution, oxidation dye intermediate, and alkaline agent; a second agent composition for aerosol hair dyeing containing hydrogen peroxide, a nonionic surfactant, higher alcohol, and hydrocarbon; and a brush for hair treatment agents, the brush for hair treatment agents having a row of teeth of an outside brush respectively provided along the side edge part of either side of the cross direction of a brush stand, and a row of teeth of an inside brush adjacently provided to inside of the cross direction of the outside brush teeth, the tensile modulus of elasticity of the inside brush teeth is lower than the tensile modulus of elasticity of the outside brush teeth.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an aerosol type hair dyeing kit.

  An oxidative hair dye comprising a first agent composition containing an alkali agent and an oxidative dye and a second agent composition containing an oxidizer is in a foam, cream, gel, paste, etc. state, for example Once discharged on the tray and mixed using a spatula or brush, it is applied to the hair using a hand or applicator. In such a two-component oxidative hair dye, it is important to ensure the mixing property of the first agent composition and the second agent composition and the operability during the treatment. For this reason, in the design of an oxidative hair dye, improvement of mixing property and operability and reduction of irritating odors are achieved by techniques such as appropriate viscosity adjustment of the composition (see, for example, Patent Document 1).

  Moreover, as means for improving the mixing property and operability of the first agent composition and the second agent composition by the applicator used for the treatment, the first from the aerosol container on the brush stand on which the brush teeth stand. Various brushes have been developed that allow the mixture to be applied to the hair while mixing the two agents while combing the hair while the agent composition and the second agent composition are ejected and placed (for example, Patent Document 2).

JP 2004-189638 A JP 2005-97310 A

  The first agent composition and the second agent composition of the aerosol type hair dye composition have a viscosity that does not spill on the brush stand while having a relatively low viscosity so that it can be discharged from the aerosol container. At the same time, a brush for applying the hair dye composition to hair is required to have a structure capable of preventing dripping. However, in the configuration described in Patent Document 2, it is difficult to transfer the first and second hair dyes on the brush base to the hair, and it is difficult to apply to the root part of gray hair as intended. There was also a problem.

  In addition, aerosol products have a problem that the amount of content discharged from the aerosol container gradually decreases regardless of whether it is used continuously or intermittently, so as not to reduce the discharge amount. As a contrivance, the contrivance of the structure of the container itself and the orifice part to be discharged and the adjustment of the viscosity of the contents have been studied, but sufficient studies have not been made for hair dyeing applications.

  Furthermore, when an aerosol container that discharges the first agent composition and an aerosol container that discharges the second agent composition are connected to each other and an attempt is made to use a container that simultaneously discharges in the same operation, the degree of decrease in the discharge amount is different for each aerosol. Since it is unique to the container, even if it is discharged at a predetermined amount ratio when it is used for the first time after manufacturing, if the discharge is continued or repeated use and the internal volume becomes less than about half amount, the discharge amount ratio will increase greatly In some cases, it was difficult to place an appropriate amount on the brush, and the hair dyeability was also lowered.

  The present invention is capable of discharging the first agent composition and the second agent composition from the aerosol container at a predetermined ratio, and is placed on a brush for easy mixing while aiming at the root of the white hair that is anxious. The present invention relates to an aerosol hair dye kit comprising a two-component aerosol hair dye composition and a hair treatment brush housed in an aerosol container, to which a hair dye can be applied as it is.

  The present inventors are concerned about the hair dye composition by combining the first agent composition and the second agent composition for aerosol hair dye having a specific composition with the hair treatment brush having a specific structure. Applying neatly to the white hair part of the root and spreading the mixture from the root direction to the tip of the hair while pushing the mixture into a wide area of the root, and as a result, it is possible to suitably dye the white hair of the root. As a result, the present invention has been completed.

The present invention is an aerosol hair dye kit comprising a first agent composition for aerosol hair dye, a second agent composition for aerosol hair dye, and a brush for hair treatment agent,
The first composition for aerosol hair dye contains the following components (1A) to (1F),
(1A) Cationic surfactant
(1B) Nonionic surfactant
(1C) Higher alcohol
(1D) Oil that is liquid at 25 ° C
(1E) Oxidative dye intermediate
(1F) Alkaline agent The second agent composition for aerosol hair dye contains the following components (2A) to (2D),
(2A) Hydrogen peroxide
(2B) Nonionic surfactant
(2C) Higher alcohol
(2D) A plurality of hydrocarbon brushes for hair treatment agent are provided along side edges on both sides in the width direction of the brush base, and are arranged at predetermined intervals in the length direction of the brush base. And a plurality of inner brush teeth provided adjacent to the inner side in the width direction of the outer brush teeth and arranged at predetermined intervals in the length direction. An inner brush tooth row, and the tensile elastic modulus of the inner brush teeth is lower than the tensile elastic modulus of the outer brush teeth.
An aerosol hair dye kit is provided.

  The aerosol type hair dye kit of the present invention can apply the hair dye as intended to the part of the white hair that is anxious while easily mixing the first agent composition and the second agent composition. Can be suitably dyed.

It is a perspective view of a hair treatment tool provided with the brush for hair treatment agents which concerns on preferable one Embodiment of this invention. It is a side view of a hair treatment tool provided with the brush for hair treatment agents which concerns on preferable one Embodiment of this invention. It is a top view of the brush part of the hair treatment tool explaining the structure of the brush for hair treatment agents which concerns on preferable one Embodiment of this invention. It is an expanded sectional view in alignment with AA of FIG. 2 explaining the structure of the brush for hair treatment agents which concerns on preferable one Embodiment of this invention. It is a top view of the brush part of the hair treatment tool explaining the state which placed the 1st agent and the 2nd agent side by side on the upper surface of a brush stand. It is explanatory drawing of the state which the inner brush tooth and the intermediate | middle part brush tooth bent, and was pushing the hair dye composition between hair. In the explanatory diagram of the state where the inner brush teeth are deformed until the tip protrudes outward of the outer brush teeth row, and the subdivided hair is sandwiched between the side surface of the outer brush teeth and the side surface of the inner brush teeth is there.

-Aerosol hair dye 1st agent composition The aerosol hair 1st agent composition (henceforth "1st agent composition") used by this invention contains the following component (1A)-(1F).
(1A) Cationic surfactant
(1B) Nonionic surfactant
(1C) Higher alcohol
(1D) Oil that is liquid at room temperature
(1E) Oxidative dye intermediate
(1F) Alkaline agent

[Component (1A): Cationic surfactant]
Examples of the cationic surfactant of component (1A) include (i) alkyltrimethylammonium salt, (ii) alkoxyalkyltrimethylammonium salt, (iii) dialkyldimethylammonium salt, and the like.

(I) Alkyltrimethylammonium salt Examples of the alkyltrimethylammonium salt include those represented by the following general formula (1).
R ¹ −N ⁺ (CH ₃ ) ₃ X ⁻ (1)
[Wherein R ¹ represents an alkyl group having 12 to 22 carbon atoms, and X ⁻ represents a halide ion such as a chloride ion or a bromide ion; a methosulphate ion, a metocarbonate ion, or the like. ]

  Specific examples include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, behenyltrimethylammonium methosulfate and the like.

(Ii) Alkoxyalkyltrimethylammonium salt Examples of the alkoxyalkyltrimethylammonium salt include those represented by the following general formula (2).
R ² —O—R ³ —N ⁺ (CH ₃ ) ₃ X ⁻ (2)
[Wherein R ² represents an alkyl group having 12 to 22 carbon atoms, R ³ represents an ethylene group or a propylene group which may be substituted with a hydroxy group, and X ⁻ represents a chloride ion, a bromide ion, or the like. Halide ion; methosulphate ion, methocarbonate ion, etc. ]

  Specific examples include stearoxypropyltrimethylammonium chloride, stearoxyethyltrimethylammonium chloride, stearoxyhydroxypropyltrimethylammonium chloride, and the like.

(Iii) Dialkyldimethylammonium salt Examples of the dialkyldimethylammonium salt include those represented by the following general formula (3).
_{^{(R 4) 2 N + (}} CH 3) 2 X - (3)
[Wherein R ⁴ independently represents an alkyl group or benzyl group having 12 to 22 carbon atoms, X ⁻ represents a halide ion such as a chloride ion or a bromide ion; a methosulphate ion, a metocarbonate ion, etc. Indicates. ]

  Specific examples include dilauryl dimethyl ammonium chloride and distearyl dimethyl ammonium chloride.

  Among these, (i) alkyltrimethylammonium salt and (iii) dialkyldimethylammonium salt are preferable.

  These cationic surfactants can be used alone or in combination of two or more. The content of component (1A) in the first agent composition is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of ensuring stability that it is not separated after filling into the aerosol container. Moreover, it is preferably 3% by mass or less, more preferably 2% by mass or less.

[Component (1B): Nonionic surfactant]
Examples of the nonionic surfactant of component (1B) include polyoxyalkylene alkyl or alkenyl ether, alkyl alkanolamide, alkyl polyglucoside, alkyl glyceryl ether and the like.

  Examples of the polyoxyalkylene alkyl or alkenyl ether include polyoxyethylene alkyl or alkenyl ether, polyoxypropylene alkyl or alkenyl ether, polyoxyethylene polyoxypropylene alkyl or alkenyl ether, preferably the following general formula (4) Can be used.

R ⁵ —O — [(CH ₂ ) _x —O] _n —H (4)
[Wherein, R ⁵ represents a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms, x represents a number of 2 or 3, and n represents an average value of 1 or more and 100 or less. ]

In the general formula (4), the carbon number of R ⁵ is preferably 10 or more, more preferably 12 or more, and preferably 20 or less, from the viewpoint of blending stability that no precipitate is produced during storage. More preferably, it is 18 or less. N is preferably 2 or more, more preferably 4 or more, and is preferably 80 or less, more preferably 60 or less, and further preferably 45 or less. When using what is shown by general formula (4) as a component (1B), 1 type may be used independently and 2 or more types from which n differs may be used in combination.

  Specific examples of polyoxyalkylene alkyl or alkenyl ether include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxypropylene lauryl ether, polyoxypropylene cetyl ether, Examples thereof include oxypropylene stearyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene stearyl ether and the like.

  As the alkyl alkanolamide, one represented by the following general formula (5) can be used.

[Wherein, R ⁶ represents a linear or branched alkyl group having 5 to 23 carbon atoms, and R ⁷ and R ⁸ each independently represent a hydrogen atom or an alkanol group having 1 to 4 carbon atoms. However, the case where R ⁷ and R ⁸ are hydrogen atoms at the same time is excluded. ]

The number of carbon atoms in R ⁶ is preferably 8 or more, more preferably 10 or more, still more preferably 12 or more, and preferably 22 or less, from the viewpoint of blending stability that no precipitate is produced during storage. Preferably it is 20 or less, more preferably 18 or less.

  Specific examples of the alkyl alkanolamide include coconut oil fatty acid monoethanolamide, coconut oil fatty acid diethanolamide, lauric acid isopropanolamide, oleic acid diethanolamide and the like.

  As the alkyl polyglucoside, those having an alkyl group having 6 to 22 carbon atoms and a condensation degree of glucoside units of 1 to 7 are preferable. Specific examples include octyl polyglucoside, 2-ethylhexyl polyglucoside, decyl polyglucoside, lauryl polyglucoside, myristyl polyglucoside, palmityl polyglucoside, isostearyl polyglucoside, stearyl lauryl polyglucoside, oleyl polyglucoside, behenyl polyglucoside, etc. Is mentioned. Among these, those having an alkyl group having 8 to 18 carbon atoms and a degree of condensation of glucoside units of 1 to 7 are more preferable.

  Examples of the alkyl glyceryl ether include those in which the carbon number of the alkyl group is preferably 8 or more, more preferably 14 or more, preferably 30 or less, more preferably 20 or less, or a branched chain alkyl group Is preferred. Specific examples include 2-ethylhexyl glyceryl ether, isostearyl glyceryl ether, isostearyl pentaerythryl glyceryl ether, and the like.

  Among these nonionic surfactants, polyoxyalkylene alkyl ethers, especially polyoxyethylene alkyl ethers are preferable from the viewpoint of the stability of the emulsified state of the hair dye and the solubility of the dye contained in the hair dye. .

  The nonionic surfactant of component (1B) can be used alone or in combination of two or more. The content of the component (1B) in the first agent composition is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, from the viewpoint of blending stability that no precipitate is produced during storage. , Preferably 5% by mass or less, more preferably 3% by mass or less.

[Ingredient (1C): higher alcohol]
As the higher alcohol of component (1C), those represented by the following general formula (6) can be used.

R ⁹ -OH (6)
[Wherein R ⁹ represents a linear or branched alkyl or alkenyl group having 12 to 24 carbon atoms. ]

  Examples of the component (1C) include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, oleyl alcohol and the like. Component (1C) can be used alone or in combination of two or more.

From the viewpoint of improving the stability of the emulsified state of the first agent in the aerosol container and the component (1C) from the viewpoint of suppressing the thickening over time, R ⁹ in the general formula (6) is (1C ₁ ) a straight-chain alkyl group having 12 to 20 carbon atoms, further 14 to 20 carbon atoms, and (1C ₂ ) a straight-chain alkyl group having 20 to 24 carbon atoms, and further 20 to 22 carbon atoms. A combination with a group is preferred. From the same viewpoint, the weight ratio of component (1C ₂₎ and component _{(1C 1) (1C 2)} / (1C 1) is preferably 0.20 or more, more preferably 0.22 or more, more preferably 0.24 or more In addition, it is preferably 0.75 or less, more preferably 0.73 or less, and still more preferably 0.71 or less.

  The content of the component (1C) in the first agent composition is preferably 0.1% by mass or more from the viewpoint of suppressing the viscosity increase with time of the first agent composition and keeping the discharge amount from the aerosol container constant. More preferably, it is 0.5 mass% or more, More preferably, it is 1.0 mass% or more, Preferably it is 10 mass% or less, More preferably, it is 8 mass% or less, More preferably, it is 6 mass% or less.

[Component (1D): Oil that is liquid at 25 ° C]
The component (1D) liquid oil at 25 ° C. is an oil agent having fluidity at 25 ° C., specifically, an oil agent having a kinematic viscosity at 25 ° C. of 1000 mm ² / s or less is preferable, and 500 mm ² / An oil agent of s or less is more preferred, and an oil agent of 100 mm ² / s or less is more preferred.

  The kinematic viscosity at 25 ° C is measured using a capillary viscometer to measure the time during which a fixed volume of liquid flows through the capillary of the viscometer at 25 ° C under one atmospheric pressure. Is used to calculate. As the capillary viscometer, Ubbelohde or Canon-Fenske model is used.

Kinematic viscosity (mm ² / s) = Outflow time (seconds) x Viscometer constant

  Component (1D) is not limited as long as it is used in ordinary cosmetics, and examples thereof include hydrocarbon oils, silicone oils, ester oils, fluorine oils, animal and vegetable oils, and among these, hydrocarbon oils Silicone oil is preferred.

  Examples of the hydrocarbon oil include liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, squalane and the like. Among these, liquid paraffin is preferable. Component (1D) can be used alone or in combination of two or more.

  Examples of the silicone oil include those shown below.

(1) Dimethylpolysiloxane Examples include those represented by the following general formula (7).
(CH ₃ ) ₃ SiO — [(CH ₃ ) ₂ SiO] _r —Si (CH ₃ ) ₃ (7)
[Wherein r represents a number of 3 or more and 20000 or less. ]

(2) Amino-modified silicone Various amino-modified silicones can be used, but the average molecular weight is about 3000 or more and 100000 or less, and the name of Amodimethicone is in the 15th edition of ICID (International Cosmetic Ingredient Dictionary and Handbook). What is described is preferred. This amino-modified silicone is preferably used as an aqueous emulsion, and examples of commercially available products include SM 8904, CB-1002 (Toray Dow Corning), XF42-B8922 (Momentive Performance Materials). .

(3) Other silicone oils Other than the above, polyether-modified silicone, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, alkoxy-modified silicone, epoxy-modified silicone, fluorine-modified silicone, cyclic silicone, alkyl-modified silicone, etc. It is done.

  Examples of ester oils include fatty acid esters such as isopropyl palmitate, polyhydric alcohol fatty acid esters such as neopentyl glycol dicaprate and pentaerythritol tetra-2-ethylhexanoate, and aromatic carboxylic acid alkyl esters such as alkyl benzoate. Examples of the fluorine oil include fluoropolyether and perfluoroalkyl ether silicone, and examples of the animal and vegetable oil include jojoba oil, olive oil, and liquid lanolin.

  The content of the component (1D) in the first agent composition is preferably 0.1% by mass or more from the viewpoint of suppressing the viscosity increase with time of the first agent composition and keeping the discharge amount from the aerosol container constant. More preferably, it is 0.3 mass% or more, More preferably, it is 0.5 mass% or more, Preferably it is 20 mass% or less, More preferably, it is 17 mass% or less, More preferably, it is 13 mass% or less.

[Mass ratio (1D) / (1C)]
The mass ratio (1D) / (1C) of the component (1D) to the component (1C) in the first agent composition suppresses the thickening of the first agent composition over time, and the discharge amount from the aerosol container is constant. From the standpoint of maintaining, preferably 0.16 or more, more preferably 0.20 or more, still more preferably 0.25 or more, still more preferably 0.30 or more, still more preferably 0.31 or more, still more preferably 0.40 or more, more preferably 0.50 or more, It is preferably 2.20 or less, more preferably 2.00 or less, further preferably 1.90 or less, further preferably 1.84 or less, still more preferably 1.70 or less, and still more preferably 1.50 or less.

[Component (1E): Oxidative dye intermediate]
The first agent composition contains an oxidation dye intermediate as the component (1E). As the oxidation dye intermediate, known precursors and couplers usually used in hair dyes can be used.

  Examples of the precursor include paraphenylenediamine, toluene-2,5-diamine, orthochloroparaphenylenediamine, N-phenylparaphenylenediamine, N, N-bis (hydroxyethyl) paraphenylenediamine, and 3-methyl-4-amino. Phenol, 2-hydroxyethylparaphenylenediamine, paraaminophenol, paramethylaminophenol, 4-amino-metacresol, orthoaminophenol, 2,2 '-[(4-aminophenyl) imino] bisethanol and their salts Is mentioned.

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

  Each of the precursor and the coupler can be used alone or in combination of two or more. 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 0.02% by mass or more. Moreover, it is preferably 5% by mass or less, more preferably 4% by mass or less.

(Direct dye)
The first agent composition may further contain a direct dye. Examples of direct dyes include acid dyes, nitro dyes, disperse dyes, and basic dyes. More specifically, the acid dyes are blue No. 1, purple No. 401, black No. 401, orange No. 205, red No. 227, red No. 106, yellow No. 203, yellow No. 202 (1), acidic orange 3 etc. are mentioned. Nitro dyes include 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 disperse dye include disperse purple 1, disperse blue 1, and disperse black 9. Examples of the basic dye include basic blue 99, basic brown 16, basic brown 17, basic red 76, basic yellow 76, basic orange 31, basic red 51, and the like.

  A direct dye can be used individually or in combination of 2 or more types. The content of the direct dye in the first agent composition is preferably 0.001% by mass or more, more preferably 0.01% by mass or more from the viewpoint of expanding the dyeing region, and prevents aggregation and precipitation in the composition. From the viewpoint, it is preferably 5% by mass or less, more preferably 3% by mass or less.

[Ingredient (1F): Alkaline agent]
The first agent composition contains an alkali agent. Alkaline agents 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 And alkanediamines and salts thereof; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate 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 1.5% by mass or more, more preferably 2.0% by mass or more from the viewpoint of sufficient hair dyeing effect, and also reduces hair damage and scalp irritation. From the viewpoint, it is preferably 8% by mass or less, more preferably 6% by mass or less.

[Medium]
In the first agent composition, water and, if necessary, an organic solvent are used as a medium. Examples of organic solvents include lower alcohols such as ethanol and 2-propanol, aromatic alcohols such as benzyl alcohol and benzyloxyethanol, polyols such as propylene glycol, 1,3-butanediol, diethylene glycol, and glycerin, ethyl cellosolve, Examples thereof include cellosolves such as butyl cellosolve and benzyl cellosolve, and carbitols such as ethyl carbitol and butyl carbitol.

[PH]
The pH (25 ° C.) of the first agent composition is preferably 8 or more, more preferably 9 or more, and preferably 13 or less, more preferably 12 or less. As the pH adjuster, in addition to the above alkali agents, inorganic acids such as hydrochloric acid and phosphoric acid; organic acids such as citric acid, glycolic acid and lactic acid; dipotassium dihydrogen phosphate, disodium monohydrogen phosphate, citric acid Examples thereof include inorganic acid salts such as sodium or organic acid salts.

[Other optional ingredients]
In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the first agent composition. Such optional ingredients include animal and vegetable fats and oils, higher fatty acids, non-cationic natural, semi-synthetic or synthetic polymers, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, herbal medicines. Extracts, vitamins, fragrances, UV absorbers.

-Second agent composition for aerosol hair dyeing The second agent composition for aerosol hair dyeing used in the present invention (hereinafter referred to as "second agent composition") contains the following components (2A) to (2D).
(2A) Hydrogen peroxide
(2B) Nonionic surfactant
(2C) Higher alcohol
(2D) Hydrocarbon

[Component (2A): Hydrogen peroxide]
The second agent composition contains hydrogen peroxide as component (2A). The content of hydrogen peroxide in the second agent composition is preferably 1% by mass or more, more preferably 3% by mass or more from the viewpoint of speeding up the oxidation reaction of the oxidation dye intermediate, and hair protein. From the viewpoint of suppressing the oxidation of, preferably it is 9% by mass or less, more preferably 6% by mass or less.

[Component (2B): Nonionic surfactant]
The second agent composition contains a nonionic surfactant as component (2B). Examples of the component (2B) include polyoxyalkylene alkyl or alkenyl ether, alkyl alkanolamide, polyoxyalkylene alkyl amine, alkyl polyglucoside, alkyl glyceryl ether and the like. Among these, polyoxyalkylene alkyl or alkenyl ether is preferable, and polyoxyethylene alkyl or alkenyl ether is more preferable.

  As the polyoxyethylene alkyl or alkenyl ether, those represented by the following general formula (8) can be used.

R ¹⁰ —O— (CH ₂ CH ₂ —O) _m —H (8)
[Wherein, R ¹⁰ represents a linear or branched saturated or unsaturated alkyl group or alkenyl group having 8 to 22 carbon atoms, and m represents an average value of 1 to 100. ]

In the general formula (8), the carbon number of R ¹⁰ is 8 or more, preferably 10 or more, 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, more preferably 18 or less. A component (2B) can be used individually or in combination of 2 or more types.

Component (2B) is, from the viewpoint of stability of the second agent composition, m in the general formula (8) is (2B ₁ ) 1 or more and less than 30, and (2B ₂ ) 30 or more and 100 or less. It is preferably a combination with a certain one, more preferably a combination with (2B ₁ ) 1 to 20 and a combination with (2B ₂ ) 35 to 60, and (2B ₁ ) 1 More preferably, it is a combination of those having 10 or less and (2B ₂ ) 35 or more and 45 or less. The mass ratio [(2B ₁ ) / (2B ₂ )] of the component (2B ₁ ) and the component (2B ₂ ) is preferably 0.05 or more, more preferably 0.11 or more, from the viewpoint of the stability of the second agent composition. Further, it is preferably 0.18 or more, more preferably 0.25 or more, preferably 4.00 or less, more preferably 1.50 or less, still more preferably 1.00 or less, and further preferably 0.67 or less.

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

[Ingredient (2C): higher alcohol]
The second agent composition contains a higher alcohol as component (2C). As the component (2C), those represented by the following general formula (9) can be used.

R ¹¹ -OH (9)
[Wherein, R ¹¹ represents a linear or branched alkyl group or alkenyl group having 12 to 24 carbon atoms. ]

  Examples of the component (2C) include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, carnervir alcohol, oleyl alcohol and the like. Component (2C) can be used alone or in combination of two or more.

Component (2C) is a compound in which R ¹¹ in the general formula (9) is a (2C ₁ ) linear alkyl group having 12 to 18 carbon atoms from the viewpoint of keeping the viscosity of the second agent composition constant. And (2C ₂ ) preferably a straight chain alkyl group having 20 to 24 carbon atoms, and (2C ₁ ) a straight chain alkyl group having 14 to 18 carbon atoms. And (2C ₂ ) a combination with a linear alkyl group having 20 to 22 carbon atoms is more preferred. The mass ratio [(2C ₁ ) / (2C ₂ )] of the component (2C ₁ ) and the component (2C ₂ ) is preferably 0.05 or more, more preferably from the viewpoint of keeping the viscosity of the second agent composition constant. It is 0.11 or more, more preferably 0.17 or more, further preferably 0.25 or more, preferably 19.00 or less, more preferably 9.00 or less, further preferably 5.67 or less, and further preferably 4.00 or less.

  The content of the component (2C) in the second agent composition is preferably 0.5% by mass or more, more preferably 0.8% by mass or more, and further 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, further 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, and further preferably 15% or less. It is at most 10% by mass, more preferably at most 10% by mass, even more preferably at most 8% by mass.

[Component (2D): Hydrocarbon]
The second agent composition contains a hydrocarbon as component (2D). The component (2D) hydrocarbon used in the present invention is preferably liquid at 25 ° C., and examples thereof include liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, squalane and the like. It is done. Among these, liquid paraffin is preferable. A component (2D) can be used individually or in combination of 2 or more types.

  The content of the component (2D) 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 dyeing or decolorization. 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, and further preferably 12% by mass or less.

  In addition, the total mass ratio [(2C) + (2D)] / (2B) of the components (2C) and (2D) to the component (2B) in the second agent composition determines the viscosity of the second agent composition. From the viewpoint of keeping constant, it is preferably 1.0 or more, more preferably 1.2 or more, further preferably 1.5 or more, preferably 3.5 or less, more preferably 3.3 or less, and further preferably 3.2 or less.

  Furthermore, the mass ratio (2D) / (2C) of the component (2D) to the component (2C) in the second agent composition is preferably 1.2 or more from the viewpoint of keeping the viscosity of the second agent composition constant. Preferably it is 1.3 or more, preferably 2.2 or less, more preferably 2.1 or less.

[Component (2E): Cationic surfactant]
The second agent composition may contain a cationic surfactant as component (2E). As the cationic surfactant of the component (2E), monoalkyltrimethylammonium chloride and monoalkyltrimethylammonium bromide are preferable, among them stearyltrimethylammonium chloride (steartrimonium chloride), cetyltrimethylammonium chloride (cetrimonium chloride), Lauryltrimethylammonium chloride (lauryltrimonium chloride) can be used. Component (2E) can be used alone or in combination of two or more.

  The content of component (2E) in the second agent composition is preferably 0.001% by mass or less, more preferably 0.0005% by mass or less from the viewpoint of preventing corrosion of the metal container, and further component (2E) is added. It is preferable not to contain substantially. “Substantially free” means not contained unless it is inevitably contained from components (2A) to (2D) and other components.

[Component (2F): Hydroxyethane diphosphonic acid]
The second agent composition may contain hydroxyethane diphosphonic acid as component (2F). The content of the component (2F) in the second agent composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, from the viewpoint of stabilization of hydrogen peroxide. Preferably it is 0.3 mass% or more, preferably 2.0 mass% or less, more preferably 1.5 mass% or less, and still more preferably 1.0 mass% or less.

[PH]
The pH (25 ° C.) of the second agent composition is preferably 2.0 or more, more preferably 2.5 or more, and preferably 6 or less, more preferably 4 or less, from the viewpoint of inhibiting decomposition of hydrogen peroxide. . 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 at 30 ° C. (hereinafter referred to as “viscosity 1”) before filling the second agent composition into the aerosol container is preferably 5,000 mPa · s or more, more preferably 10,000 mPa · s, from the viewpoint of the stability of the formulation. s or more, more preferably 15,000 mPa · s or more, more preferably 20,000 mPa · s or more, more preferably 25,000 mPa · s or more, and preferably 100,000 mPa · s or less, more preferably 90,000 mPa · s or less, More preferably, it is 80,000 mPa * s or less, More preferably, it is 70,000 mPa * s or less.

  One month after filling the second agent composition into the aerosol container, the viscosity at 30 ° C. (hereinafter referred to as “viscosity 2”) immediately after discharging the second agent composition from the aerosol container is the stability of the formulation. From the viewpoint, it 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, further preferably 20,000 mPa · s or more, more preferably 25,000 mPa · s or more, 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, and further preferably 70,000 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 the stability of the formulation. It is preferably 1.25 or less, more preferably 1.2 or less, still more preferably 1.15 or less, and still more preferably 1.13 or less.

  The viscosity (30 ° C.) of the second agent composition is a value after rotating for 1 minute at 10 rpm using a T-C rotor using a B-type viscometer with a helical stand.

[Volume average diameter of emulsified particles in the second agent composition]
From the viewpoint of keeping the viscosity constant, the volume average diameter of the emulsified particles before filling the second agent composition into the aerosol container is preferably 0.05 μm or more, more preferably 0.10 μm or more, and more preferably 23 μm or less, still more preferably Is 20 μm or less, more preferably 15 μm or less, more preferably 12 μm or less, and even more preferably 10 μm or less.

  By setting to the said range, the viscosity of the 2nd agent composition discharged from a 2nd container can be kept constant in any temperature range.

  Here, the volume average particle diameter of the emulsified particles in the second agent composition was determined using a dynamic light scattering particle size distribution measuring device manufactured by HORIBA, and the sample setting was “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 emulsified particles.

● Aerosol Container Form In the aspect of the present invention, as an aerosol container that can be used in a two-component aerosol hair dye composition, (1) an inner bag enclosing a first agent composition and a second composition A double aerosol container (for example, the container described in FIGS. 2 and 4 of JP-A-2015-229666), or (2) the first agent. A double-type aerosol container in which each of the inner bag enclosing the composition and the inner bag enclosing the second composition is accommodated in one aerosol container (for example, as described in FIG. 3 of JP-A-2015-229666) Container).

  As the inner bag, those having elasticity are preferable, high-density or low-density polyethylene, saponified ethylene / vinyl acetate copolymer, polyethylene terephthalate, polypropylene, polyacrylonitrile, etc., or a laminate of these Are preferred, and those having low propellant gas permeability are preferred. Also, the inner surface of the inner bag can be coated with a chemical resistant resin.

  The compressed 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 alternative chlorofluorocarbon. Of these, nitrogen gas is preferable from the viewpoint of preventing alteration.

  In the double-type or double-type aerosol container, the first agent composition and the second agent composition are usually discharged simultaneously by one operation. At that time, there is a case where the hair dyeability is affected by the different discharge amounts of the first agent composition and the second agent composition, but the first agent composition and the second agent composition in the present invention are When used, it has been found that the discharge amount ratio of the first agent composition and the second agent composition is kept within a specific range regardless of the remaining amount of the contents. Therefore, as an aspect of the present invention, the first agent composition and the second agent composition may be filled in a container that discharges separately, but the composition can be used for an aerosol container that can discharge each composition simultaneously. It is preferable to fill and use from the viewpoint of sufficiently enjoying the benefits.

● Brush for hair treatment agent The brush for hair treatment agent used in the present invention is provided along side edges on both sides in the width direction of the brush base, and is arranged at a predetermined interval in the length direction of the brush base. An outer brush tooth row composed of a plurality of outer brush teeth, and a plurality of outer brush teeth arranged adjacent to the inner side in the width direction of the outer brush teeth and arranged at predetermined intervals in the length direction. An inner brush tooth row composed of inner brush teeth, and the tensile elastic modulus of the inner brush teeth is lower than the tensile elastic modulus of the outer brush teeth.

[Hair treatment tool]
The hair treatment brush 10 according to a preferred embodiment of the present invention, as shown in FIG. 1 and FIG. 2, scrapes the hair, treats the hair while combing it, and treats fine portions of the hair. Is used as a part constituting the brush part 22 of the hair treatment tool 20 having the comb part 21, the brush part 22, and the mini brush part 23 each having a function suitable for the above. In the present embodiment, the hair treatment tool 20 includes a handle portion 24, an attachment substrate portion 25 provided integrally with the distal end portion of the handle portion 24, a comb portion 21, and a brush provided to be supported by the attachment substrate portion 25. A part 22 and a mini brush part 23 are formed. 1 and 2, the brush portion 22 is integrally provided on the upper side portion of the mounting base portion 25, and the comb portion 21 is integrally provided on the lower side portion of the mounting base portion 25. The mini brush portion 23 is provided integrally with the tip side portion of the mounting base portion 25.

  The user grasps the handle portion 24 of the hair treatment tool 20 by hand, and rotates or tilts the mounting base portion 25, while each of the comb portion 21, the brush portion 22, and the mini brush portion 23 is attached to the scalp. It is arranged so as to face each other, and the operation of scraping the hair, the operation of combing the hair, and the operation of combing the fine portions of the hair can be easily performed. As described above, the brush 10 for hair treatment agent of the present embodiment constitutes the brush part 22 of the hair treatment tool 20, and comprises the first agent composition 30a and the second agent composition 30b. For example, after placing the brush portion 22 by the hair treatment brush 10 shown in FIG. 1 in the upward direction on the upper surface 11a of the brush base 11 in the length direction X (see FIG. 5), the hair treatment brush 10 is opposed to the scalp, and preferably moved in the width direction Y of the brush base 11 to efficiently mix the first agent composition 30a and the second agent composition 30b while combing the hair, The agent can be applied to the hair.

[Brush for hair treatment agent]
And the brush 10 for hair treatment agents of this embodiment has the 1st agent composition 30a and 2nd in the length direction on the upper surface 11a of the said brush base 11 in the state arranged in the multiple rows in the width direction Y of the brush base 11. The brush for hair treatment agent which can mount agent composition 30b, as shown in FIG.1 and FIG.3, is respectively provided along the side edge part of the both sides of the width direction Y of the brush base 11, and a brush base 11. An outer brush tooth row 12 composed of a plurality of outer brush teeth 12a arranged at predetermined intervals in the length direction X of 11 and an inner side in the width direction Y of the brush base 11 of the outer brush tooth row 12 And an inner brush tooth row 13 made up of a plurality of inner brush teeth 13a arranged at a predetermined interval in the length direction X of the brush base 11. The outer brush teeth 12a and the inner brush teeth 13a are set so that the tensile elastic modulus of the inner brush teeth 13a is lower than the tensile elastic modulus of the outer brush teeth 12a. The tensile modulus of the inner brush teeth 13a is such that the first agent composition 30a and the second agent composition 30b are efficiently mixed so that the hair dye can be applied to the hair. The tensile modulus is preferably 1/10 or less, more preferably 1/20 or less, further preferably 1/40 or less, and preferably 1/500 or more, It is more preferably 1/400 or more, and further preferably 1/200 or more. In addition, the inner brush teeth 13a and the outer brush teeth 12a are arranged in a staggered manner so that the central axis c ′ of the inner brush teeth 13a does not overlap the central axis c of the outer brush teeth 12a and the width direction Y of the brush base 11. (See FIGS. 2 and 3). The central axis of each brush tooth is the central axis in the direction in which each brush tooth stands.

  As shown in FIG. 4, the outer brush teeth 12 a constituting the outer brush tooth row 12 are preferably located outward from the direction Z perpendicular to the base surface 11 b of the brush base 11 in the width direction Y of the brush base 11. Stands in an inclined state. Further, the inner brush teeth 13a constituting the inner brush tooth row 13 have the tip height in the direction Z perpendicular to the base surface 11b of the brush base 11 greater than the tip height of the outer brush teeth 12a. In the form, it is erected so as to be low. The inner brush teeth 13a are arranged in a staggered manner with respect to the outer brush teeth 12a so that the center axis c 'does not overlap the center axis c of the outer brush teeth 12a and the width direction Y of the brush base 11. (See FIGS. 2 and 3), when the hair dye composition is applied to the hair, the tip portion 13b preferably passes through the gap between the plurality of adjacent outer brush teeth 12a. It can be deformed until it protrudes outward from the tooth row 12 (see FIG. 4).

  Further, in the present embodiment, an intermediate portion between the inner brush tooth rows 13 on both sides (an intermediate portion in the width direction Y of the brush base 11) is arranged at a predetermined interval in the length direction X of the brush base 11. An intermediate brush tooth row 14 comprising a plurality of intermediate brush teeth 14a is provided (see FIG. 1).

  Further, in the present embodiment, the end composed of a plurality of end brush teeth 15a arranged at predetermined intervals in the width direction Y of the brush base 11 at both ends in the length direction X of the brush base 11 A partial brush tooth row 15 is provided (see FIG. 1).

(Brush stand)
In this embodiment, the hair treatment agent brush 10 constituting the brush part 22 of the hair treatment tool 20 includes a brush base 11 having a vertically long, substantially rectangular planar shape, as shown in FIGS. 1 and 3. . The brush base 11 is erected upward from the upper surface 11a of the brush base 11, an outer brush tooth row 12 consisting of a plurality of outer brush teeth 12a, an inner brush tooth row 13 consisting of a plurality of inner brush teeth 13a, An intermediate brush tooth row 14 composed of a plurality of intermediate brush teeth 14a and an end brush tooth row 15 composed of a plurality of end brush teeth 15a are provided.

  In the present embodiment, as shown in FIG. 4, the brush base 11 is made of, for example, polyethylene resin, polypropylene resin, ABS resin (acrylonitrile / acrylic resin) as the resin similar to the handle portion 24 and the mounting substrate portion 25 of the hair treatment tool 20. (Butadiene / styrene copolymer resin) etc., and an elastomer mounted so as to be fitted into a base 11c that is a part integrally formed with these and a fitting recess 11e formed in the base 11c And a soft base portion 11d formed by using. In addition to fixing by fitting, fixing of the soft base portion 11d to the fitting recess 11e employs fixing by molding such as insert molding, two-color molding, fixing using an adhesive or an adhesive, and the like. be able to.

  The fitting recess 11e has a vertically long, substantially rectangular planar shape that is substantially similar to the planar shape of the brush base 11 by recessing the inner region surrounded by the annular peripheral portion of the base portion 11c. Is formed. The upper surface of the base portion 11c and the soft base are joined to the fitting recess 11e by integrally joining the soft base portion 11d formed so as to have the same vertically long and substantially rectangular planar shape. In a state in which the upper surface of the portion 11d is continuous, the brush base 11 in which these are integrated is formed. In the present embodiment, the outer brush tooth row 12 and the end brush tooth row 15 integrally formed with the base portion 11c are erected upward from the peripheral portion of the base portion 11c on the upper surface 11a of the brush base 11. There are provided an inner brush tooth row 13 and an intermediate brush tooth row 14 that are integrally formed with the soft base portion 11d and are erected upward from the inner region of the soft base portion 11d.

(Outer brush teeth)
The outer brush tooth rows 12 provided along the side edge portions on both sides in the width direction Y, which are the peripheral portions of the brush base 11, are arranged at predetermined intervals in the length direction X of the brush base 11. The outer brush teeth 12a are plural (15 in this embodiment). The outer brush teeth 12a have a higher tensile elastic modulus than the inner brush teeth row 13a, and preferably have rigidity that does not flex when the hair dye composition is applied to the hair. Since the outer brush teeth 12a of the outer brush tooth row 12 have such rigidity, it is possible to comb the hair, preferably by moving the hair treatment brush 10 in the width direction Y of the brush base 11. Further, as described later, the hair coloring agent can be obtained by efficiently mixing the first agent 30a containing the alkaline agent and the second agent 30b containing the oxidizing agent by a synergistic effect with the bending deformation of the inner brush teeth 13a. The composition can be applied to the back of the hair.

  Here, as described below, the outer brush teeth 12a apply the hair dye composition to the hair by appropriately selecting the material, cross-sectional shape, cross-sectional dimension, and tip height of the outer brush teeth 12a. In this case, it can have rigidity that does not flex.

  The outer brush teeth 12a can be made of a material using polyethylene resin, polypropylene resin, ABS resin (acrylonitrile / butadiene / styrene copolymer resin) or the like, for example, similarly to the base 11c of the brush base 11. In this embodiment, a material using polypropylene is used.

  Further, for example, the tensile elastic modulus of polypropylene resin is about 1000 to 2000 MPa (measured value according to JISK7161, 7162: 1994), which is several tens of times higher than the tensile elastic modulus of the elastomer used for the inner brush teeth 13a described later. Has a value several hundred times larger.

  The cross-sectional shape of the outer brush teeth 12a can be a circle, an ellipse, a polygon, or the like. Further, different cross-sectional shapes may be provided in the height direction (direction Z perpendicular to the base surface 11b of the brush base 11). For example, the cross-sectional shape of the root portion of the outer brush tooth 12a can be circular, and the cross-sectional shape of the tip portion can be elliptical.

  The cross-sectional dimension (the diameter if the cross section is circular, the equivalent circle diameter if the cross section is non-circular) can be about 1 to 5 mm, for example. Moreover, you may provide the cross-sectional dimension different from a root part in the height direction (direction Z perpendicular | vertical with respect to the base surface 11b of the brush stand 11).

  The tip height of the outer brush teeth 12a (the height in the direction Z perpendicular to the base surface 11b of the brush base 11) is, for example, about 4 to 15 mm.

  In the present embodiment, each of the outer brush teeth 12a has a vertically long truncated cone shape having an outer diameter of, for example, about 1 mm and whose tip is processed into a spherical shape. For example, the height is about 7 mm from the 11 base surface 11b. The cross-sectional shape of the outer brush teeth 12a is circular, the diameter of the root portion is about 2 mm, and the diameter of the tip portion is about 1 mm. Further, the outer brush teeth 12a are arranged in a row with a predetermined interval in the length direction X of the brush base 11, with an interval between the central axes c of 4 mm, for example, Outer brush tooth rows 12 are formed on the side edge portions on both sides of the brush base 11 in the width direction Y, respectively.

  In addition, the preferable range of the space | interval between the center axes c in the length direction X of the brush stand 11 of the several outer brush tooth 12a is about 1-6 mm.

  Further, in the present embodiment, the outer brush teeth 12a constituting the outer brush tooth row 12 have the center axis c from the direction Z perpendicular to the base surface 11b of the brush table 11 to the width direction Y of the brush table 11. Is preferably erected at an inclination angle θ of preferably 5 to 45 degrees, more preferably 5 to 30 degrees, and still more preferably 5 to 20 degrees. Accordingly, a larger amount of the hair dye composition can be placed on the upper surface 11a of the brush base 11, and the brush base can be applied to the hair while applying the hair dye composition while combing the hair. When the hair treatment agent brush 10 is slid and moved in the width direction Y of 11, the outer brush teeth 12a serve as a guide, and the hair moves from the tip side of the outer brush teeth 12a to the brush base 11 side. It becomes possible to make it more easily contact with a hair dye composition.

  Here, the base surface 11b of the brush base 11 is provided on the side edge portions on both sides in the width direction Y of the brush base 11, and the outer brush teeth 12a constituting the pair of outer brush tooth rows 12 are arranged on the brush base 11. This is a flat virtual reference surface obtained by connecting the standing base end portion on the upper surface 11a between the outer brush tooth rows 12 on both sides.

(Inner brush dentition)
The inner brush tooth row 13 provided inside the outer brush tooth row 12 adjacent to the width direction Y of the brush stand 11 is a plurality of pieces arranged at predetermined intervals in the length direction X of the brush stand 11. The inner brush teeth 13a (14 in this embodiment) are configured. As described above, the inner brush teeth 13a are integrally formed with the soft base portion 11d of the brush base 11. The inner brush teeth 13a of the inner brush teeth row 13 have a lower elastic modulus than the outer brush teeth 12a, and when the hair dye composition is applied to the hair, as shown in FIG. When the inner brush teeth 13a bend in the direction opposite to the direction M in which the hair is moved, the hair dye composition in the region sandwiched between the inner brush teeth 13a and the hair is separated from the surface of the hair one by one. It becomes possible to push in between. This also makes it possible to effectively apply the hair dye composition to the back side of the hair.

  Furthermore, when the hair dye composition is applied to the hair, the outer brush teeth 12a having rigidity that does not flex and the hair between the plurality of outer brush teeth 12a are used to apply the hair dye composition to the outer brush. The hair dye composition can be kept inside the tooth row 12, and the hair dye composition can be mixed more efficiently by a synergistic effect with the bending operation of the inner brush teeth 13a.

  Here, as described below, the inner brush teeth 13a apply the hair dye composition to the hair by appropriately selecting the material, cross-sectional shape, cross-sectional dimensions, and tip height of the inner brush teeth 13a. In some cases, it can have a bending rigidity.

  The material of the inner brush teeth 13a is preferably an elastomer. In this embodiment, a styrene elastomer is used. For example, the tensile elastic modulus of a styrene-based elastomer is about 5 to 50 MPa (measured value according to JIS K7113).

  The cross-sectional shape of the inner brush teeth 13a can be a circle, an ellipse, a polygon, or the like. Further, different cross-sectional shapes may be provided in the height direction (direction Z perpendicular to the base surface 11b of the brush base 11). For example, the cross-sectional shape of the root portion of the inner brush teeth 13a can be circular, and the cross-sectional shape of the tip portion can be elliptical.

  The cross-sectional dimension (the diameter if the cross section is circular, the equivalent circle diameter if the cross section is non-circular) of the root portion of the inner brush tooth 13a can be about 1 to 5 mm, for example. Moreover, you may provide the cross-sectional dimension different from a root part in the height direction (direction Z perpendicular | vertical with respect to the base surface 11b of the brush stand 11).

  The tip height of the inner brush teeth 13a (the height in the direction Z perpendicular to the base surface 11b of the brush base 11) is, for example, about 3 to 14 mm.

  In the present embodiment, the inner brush teeth 13a made of elastomer that constitute the inner brush tooth row 13 each have an elongated, substantially truncated cone shape having an outer diameter of, for example, about 1 mm and having a tip processed into a spherical shape. Further, the height of the tip is erected so as to be about 6 mm from the base surface 11b of the brush base 11, for example. The inner brush teeth 13a made of elastomer are preferably about 1 mm higher in tip height than the tip height of the outer brush teeth 12a of the outer brush teeth row 12 in the direction Z perpendicular to the base surface 11b of the brush base 11. It is erected so as to become low at the height difference h (see FIG. 4). The height of the tip of the inner brush tooth 13a made of elastomer is lower than the height of the tip of the outer brush tooth 12a of the outer brush tooth row 12, so that the outer brush tooth is not obstructed by the inner brush tooth 13a. The hair dye composition can be applied to the hair while combing the hair in row 12. From such a viewpoint, the inner brush teeth 13a have a height difference of 0.5 to 10 mm in the height of the tip in the direction Z perpendicular to the base surface 11b of the brush base 11 than the height of the tip of the outer brush teeth 12a. It is preferable to be erected so as to be lower at h.

  Further, in the present embodiment, the inner brush teeth 13a made of elastomer constituting the inner brush tooth row 13 are set at a predetermined interval in the length direction X of the brush base 11, and are the same as the outer brush teeth 12a of the outer brush tooth row 12. For example, a plurality of lines are arranged in a line at intervals of the central axis c ′ of 4 mm. As a result, a pair of inner brush tooth rows 13 are formed adjacent to the inside of the outer brush tooth row 12 at the side edge portions on both sides in the width direction Y of the soft base portion 11d of the brush base 11, respectively. . Further, the inner brush teeth 13a made of elastomer are shifted from the outer brush teeth 12a of the outer brush tooth row 12 by half the pitch of the adjacent outer brush teeth 12a in the length direction X of the brush base 11. Are arranged in a staggered pattern. Thus, the inner brush teeth 13a of the elastomer are arranged so that the central axis c ′ thereof does not overlap with the central axis c of the outer brush teeth 12a of the outer brush tooth row 12 in the width direction Y of the brush base 11. . The center axis c ′ of the inner brush teeth 13a made of elastomer is preferably arranged so as not to overlap the center axis c of the outer brush teeth 12a and the width direction Y of the brush base 11, so that the brush 10 for hair treatment agent is preferably used. When the hair dye composition is applied to the hair by moving the brush base 11 in the width direction Y, as shown in FIG. 6, the hair does not interfere with the outer brush teeth 12a and the inner brush teeth 13a. It becomes possible to bend the inner brush teeth 13a on the side opposite to the direction M in which the treatment agent brush 10 is moved.

  Furthermore, in the present embodiment, the inner brush teeth 13a made of elastomer constituting the inner brush tooth row 13 are arranged such that the tip end portion 13b has a gap portion between each pair of adjacent outer brush teeth 12a of the outer brush tooth row 12. Thus, it is formed so as to be deformable until it protrudes to the outside of the brush tooth row 12 (see FIGS. 4 and 7). The inner brush teeth 13a made of elastomer of the inner brush teeth row 13 can be deformed until the tip end portion 13b protrudes outside the outer brush teeth row 12 through the gap portion between the adjacent outer brush teeth 12a. Accordingly, as shown in FIG. 7, the tip portion 13b of the inner brush tooth 13a is deformed until it protrudes outward of the outer brush tooth row 12, and thus the side surface of the outer brush tooth 12a and the side surface of the inner brush tooth 13a are In between, the subdivided hair can be sandwiched, which makes it possible to more effectively spread the hair dye composition to the back side of the hair.

(End brush dentition)
The end brush tooth rows 15 provided at both ends of the brush base 11 in the length direction X are plural (this embodiment) arranged at predetermined intervals in the width direction Y of the brush base 11. In the embodiment, it is constituted by three end brush teeth 15a. As described above, the end brush teeth 15a are integrally formed with the base portion 11c of the brush base 11, so that the hair dye composition is applied to the hair in the same manner as the outer brush teeth 12a of the outer brush tooth row 12. When applied, it has rigidity that does not flex.

  Here, as will be described below, the end brush teeth 15a, like the outer brush teeth 12a, are appropriately selected of the material, the cross-sectional shape, the cross-sectional dimensions, and the tip height, so that the hair dye composition is obtained. When applied to hair, it can have rigidity that does not flex.

  The material of the end brush teeth 15a can be made of, for example, polyethylene resin, polypropylene resin, ABS resin (acrylonitrile / butadiene / styrene copolymer synthetic resin) or the like. In this embodiment, a material using polypropylene is used.

  Further, for example, the tensile elastic modulus of polypropylene resin is about 1000 to 2000 MPa (measured value according to JISK7161, 7162: 1994), which is several tens of times higher than the tensile elastic modulus of the elastomer used for the inner brush teeth 13a described above. Has a value several hundred times larger.

  As the cross-sectional shape of the end brush teeth 15a, a circle, an ellipse, a polygon, or the like can be adopted. Further, different cross-sectional shapes may be provided in the height direction (direction Z perpendicular to the base surface 11b of the brush base 11). For example, the cross-sectional shape of the root portion of the end brush tooth 15a can be circular, and the cross-sectional shape of the tip portion can be elliptical.

  The cross-sectional dimension (the diameter if the cross section is circular, the equivalent circle diameter if the cross section is non-circular) can be set to, for example, about 1 to 5 mm. Moreover, you may provide the cross-sectional dimension different from a root part in the height direction (direction Z perpendicular | vertical with respect to the base surface 11b of the brush stand 11).

  The tip height of the end brush teeth 15a (the height in the direction Z perpendicular to the base surface 11b of the brush base 11) is, for example, about 4 to 15 mm.

  In this embodiment, each of the end brush teeth 15a of the end brush tooth row 15 has an outer diameter of, for example, about 1 mm, and the tip is processed into a spherical shape, like the outer brush teeth 12a of the outer brush tooth row 12. It has a vertically long truncated cone shape, and is erected so that the tip has a height of, for example, about 7 mm from the base surface 11b of the brush base 11. The cross-sectional shape of the end brush teeth 15a is circular, the diameter of the root portion is about 2 mm, and the diameter of the tip portion is about 1 mm.

  Further, the end brush teeth 15a of the end brush tooth row 15 are arranged in a row, for example, with a predetermined interval in the width direction Y of the brush base 11, with an interval between the central axes of 4 mm, for example. As a result, end brush tooth rows 15 are formed on both edges of the brush base 11 in the longitudinal direction X, respectively. The end brush teeth 15 a of the end brush tooth row 15 are erected in a direction Z perpendicular to the base surface 11 b of the brush base 11. Since the end brush tooth rows 15 are provided at both ends of the brush base 11 in the length direction X, as shown in FIG. An appropriate amount of the hair dye composition can be easily placed on the upper surface 11a of the brush base 11 in the region surrounded by the outer brush tooth rows 12 on both sides in the width direction Y of the base 11.

  In addition, the preferable range of the space | interval between the center axis | shafts in the width direction Y of the brush stand 11 of the several edge part brush teeth 15a is about 1-6 mm.

(Intermediate brush teeth)
A plurality of intermediate brush tooth rows 14 provided at intermediate portions between the inner brush tooth rows 13 on both sides are arranged at predetermined intervals in the length direction X of the brush base 11 (this embodiment). In this case, the intermediate brush teeth 14a are made of 13) elastomer. The intermediate brush teeth 14a made of elastomer are integrally formed with the soft base portion 11d made of elastomer of the brush base 11 as described above. As shown in FIG. 6, when the hair dye composition is applied to the hair, the intermediate brush teeth 14a made of elastomer in the intermediate brush tooth row 14 are applied to the hair, as in the case of the inner brush teeth 13a. Is bent in the direction opposite to the direction M in which the is moved. As a result, like the inner brush teeth 13a, the hair dye composition sandwiched between the intermediate brush teeth 14a and the hair can be pushed in between the individual hairs from the hair surface. It becomes possible to apply the hair dye composition effectively to the back side.

  Here, as described below, the intermediate brush tooth row 14 is appropriately selected of the material, the cross-sectional shape, the cross-sectional dimension, and the tip height, similarly to the inner brush tooth 13a. When applied to the hair, it can have bending rigidity.

  The material of the intermediate brush teeth 14a is an elastomer. In this embodiment, a styrene elastomer is used.

  Further, for example, the tensile elastic modulus of the styrene elastomer is about 5 to 50 MPa (measured value according to JIS K7113).

  The cross-sectional shape of the intermediate brush teeth 14a may be a circle, an ellipse, a polygon, or the like. Further, different cross-sectional shapes may be provided in the height direction (direction Z perpendicular to the base surface 11b of the brush base 11). For example, the cross-sectional shape of the root portion of the intermediate brush teeth 14a can be circular, and the cross-sectional shape of the tip portion can be elliptical.

  The root partial cross-sectional dimensions of the intermediate brush teeth 14a (diameter if the cross section is circular, equivalent circle diameter if non-circular) can be about 1 to 5 mm, for example. Moreover, you may provide the cross-sectional dimension different from a root part in the height direction (direction Z perpendicular | vertical with respect to the base surface 11b of the brush stand 11).

  The tip height of the intermediate brush teeth 14a (the height in the direction Z perpendicular to the base surface 11b of the brush base 11) is, for example, about 2 to 10 mm.

  In the present embodiment, the intermediate brush teeth 14a constituting the intermediate brush tooth row 14 each have a vertically long substantially truncated cone shape having an outer diameter of, for example, about 1 mm and having a tip processed into a spherical shape. In addition, the height of the tip is erected so as to be about 5 mm from the base surface 11b of the brush base 11, for example. The intermediate brush teeth 14a preferably have a tip height in the direction Z perpendicular to the base surface 11b of the brush base 11 rather than the tip height of the inner brush teeth 13a constituting the inner brush tooth row 13. It is erected so as to be about 0.5 to 2 mm lower. By making the height of the tip of the intermediate brush teeth 14a lower than the height of the tip of the inner brush teeth 13a, the hair dye composition can be stably placed on the upper surface of the brush base 11.

  Further, in the present embodiment, the intermediate brush teeth 14a constituting the intermediate brush tooth row 14 are set at a predetermined interval in the length direction X of the brush base 11 in the same manner as the inner brush teeth 13a of the inner brush tooth row 13. For example, a plurality of lines are arranged in a row with an interval between the central axes of 4 mm. As a result, an intermediate brush tooth row 14 is formed at the central portion of the soft base portion 11d of the brush base 11. Further, the intermediate brush teeth 14a are shifted from the inner brush teeth 13a of the inner brush teeth row 13 by half the pitch of the adjacent inner brush teeth 13a in the length direction X of the brush base 11, Arranged in a staggered pattern.

  The intermediate brush teeth row 14 is provided in the middle portion between the inner brush teeth rows 13 on both sides, so that when the hair dye composition is applied to the hair, the inner brush teeth 13a and the intermediate brush teeth As shown in FIG. 6, the intermediate brush teeth 14a can be deflected in the direction opposite to the direction M in which the hair treatment brush 10 is moved without interfering with the intermediate brush teeth 14a. It becomes possible to push the hair dye composition sandwiched between the individual hairs from the surface of the hair. This makes it possible to effectively apply the hair dye composition to the back side of the hair.

  Further, in the width direction Y of the brush base 11, the region between the inner brush tooth row 13 and the intermediate brush tooth row 14 is a region where no brush teeth are present. It is preferable from the viewpoint that the mark can be placed and the hair dye composition can be stably placed on the upper surface of the brush base.

  In the width direction Y of the brush base 11, the width w of this region (the width between the side surfaces of the brush teeth at the base portion of the inner brush tooth row 13 and the intermediate brush tooth row 14, see FIG. 3) is preferably 3 to 8 mm. 3 to 6 mm is more preferable. In this embodiment, it is 4 mm.

[Operation of hair dyeing]
In order to dye hair by applying the hair dye composition to the hair using the hair treatment brush 10 having the above-described configuration, the user holds the handle portion 24 with his / her hand, for example, and performs the hair treatment tool. With the 20 brush portions 22 (hair treatment agent brushes 10) facing upward, the alkaline agent and the oxidation agent can be obtained from, for example, a double aerosol container described in JP-A-2002-119328 or JP-A-2003-205938. The first agent containing a dye and the second agent containing hydrogen peroxide as an oxidizing agent are preferably discharged in a cream or foam form, as shown in FIG. The first agent and the second agent extend in the length direction X of the brush base 11 and are placed on the upper surface 11a of the brush base 11 in a state where they are arranged in the width direction Y of the brush base 11. As a result, the quality and amount of each of the first agent and the second agent before mixing can be easily confirmed visually.

  Thereafter, the user operates the hair treatment tool 20 so that the hair treatment brush 10 on which the first agent and the second agent are placed is opposed to the hair. For example, the user uses the comb portion 21 of the hair treatment tool 20. The hair treatment agent brush 10 is preferably slid and moved in the width direction Y of the brush base 11 in a state where the hair treatment agent brush 10 is pressed along the divided hair. At this time, the first agent and the second agent sandwiched between the inner brush teeth 13a and the hair are pushed and spread, and these agents overlap each other. The user can continue to slide the hair treatment brush 10 to apply the hair dye to the hair while mixing the first agent and the second agent. Become. In addition, the user uses the mini brush part 23 of the hair treatment tool 20 to scrub the hair dye applied to the hair, for example, so that it can be applied to fine hair such as the hairline and the side of the hair. By applying the hair dye in this way, it becomes possible to easily treat these fine hairs.

  And according to the brush 10 for hair treatment agent of this embodiment provided with the above-mentioned structure, when apply | coating the hair dye composition to hair while combing hair, the 1st agent containing an alkaline agent and an oxidizing agent are included. It becomes possible to further improve the mixing property with the second agent contained, and to sufficiently apply the hair dye composition to the back side of the hair.

  That is, according to the present embodiment, the hair treatment agent brush 10 is provided with outer brush teeth comprising a plurality of outer brush teeth 12a provided along the side edges on both sides in the width direction Y of the brush base 11. It is formed to include a row 12 and an inner brush tooth row 13 formed of a plurality of elastomer inner brush teeth 13a provided adjacent to the inner side in the width direction Y of the brush base 11 of the outer brush tooth row 12. The inner brush teeth 13a and the outer brush teeth 12a are arranged in a staggered manner in the width direction Y of the brush base 11, and preferably, the distal end portion 13b of the inner brush teeth 13a is located between the adjacent outer brush teeth 12a. The outer brush tooth row 12 can be deformed until it protrudes outward through the gap portion.

  Thus, according to the hair treatment brush 10 of this embodiment, when the hair treatment brush 10 is slid in the width direction Y of the brush base 11 and the hair dye is applied to the hair while combing the hair. In addition, the outer brush teeth 12a of the outer brush teeth row 12 arranged outside the inner brush teeth 13a of the inner brush teeth row 13 and the wall effect due to the hair, and the inner brush teeth 13a of the inner brush teeth row 13 bend. As a result of the above-described synergistic effect, the mixing property of the first agent and the second agent can be improved as described below, and the hair dye composition can be applied to the back side of the hair.

1. Since the inner brush teeth 13a and the outer brush teeth 12a are arranged in a staggered manner in the width direction Y of the brush base 11, the hair bundle is subdivided into narrow gaps between the brush teeth 12a and 13a in a wavy state. .

2. When the hair treatment brush 10 is slid in the width direction Y of the brush base 11 and the hair dye is applied to the hair while combing the hair, the outer brush on the side opposite to the direction M in which the hair treatment brush 10 is moved The first agent and the second agent are brought closer to the dentition 12 side, and the first agent and the second agent are moved by relative movement between the brush teeth 12a and the hair subdivided in a narrow space between the teeth 13a. Mixing of the second agent is promoted.

3. In addition, when the hair treatment brush 10 is slid in the width direction Y of the brush base 11 and the hair dye is applied to the hair while combing the hair, the direction is opposite to the direction M in which the hair treatment brush 10 is moved. The inner brush teeth 13a made of elastomer bend so that the ends of the hairs face, so that the hair dye in the region sandwiched between the inner brush teeth 13a and the hair can be removed between the individual hairs from the hair surface. Since it becomes possible to push in and it becomes easy for a hair dye to reach the back side of hair, a hair dye can be apply | coated to the whole circumferential direction of hair.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to provide an intermediate brush tooth row at the intermediate portion between the inner brush tooth rows on both sides, and it is not always necessary to provide end brush tooth rows at both ends in the longitudinal direction of the brush base. No. In addition, the hair treatment brush does not necessarily need to be used as a part constituting the brush part of the hair treatment tool having the comb part, the brush part, and the mini brush part, and the handle part is attached to the hair treatment brush. It can also be used as a dedicated brush for processing.

  Further, the inner brush teeth constituting the inner brush teeth row are erected so that the tip height in the direction perpendicular to the base surface of the brush base is equal to or less than the tip height of the outer brush teeth. What is necessary is just to stand upright so that it may become the same as the height of the front-end | tip of an outside brush tooth.

  With respect to the embodiments described above, preferred aspects of the present invention will be further disclosed below.

<1> An aerosol hair dyeing kit comprising a first agent composition for aerosol hair dye, a second agent composition for aerosol hair dye, and a hair treatment brush,
The first composition for aerosol hair dye contains the following components (1A) to (1F),
(1A) Cationic surfactant
(1B) Nonionic surfactant
(1C) Higher alcohol
(1D) Oil that is liquid at 25 ° C
(1E) Oxidative dye intermediate
(1F) Alkaline agent The second agent composition for aerosol hair dye contains the following components (2A) to (2D),
(2A) Hydrogen peroxide
(2B) Nonionic surfactant
(2C) Higher alcohol
(2D) A plurality of hydrocarbon brushes for hair treatment agent are provided along side edges on both sides in the width direction of the brush base, and are arranged at predetermined intervals in the length direction of the brush base. And a plurality of inner brush teeth provided adjacent to the inner side in the width direction of the outer brush teeth and arranged at predetermined intervals in the length direction. An inner brush tooth row, and the tensile elastic modulus of the inner brush teeth is lower than the tensile elastic modulus of the outer brush teeth.
Aerosol hair dye kit.

<2> The tensile modulus of elasticity of the inner brush teeth is preferably 1/10 or less, more preferably 1/20 or less, still more preferably 1/40 or less, and preferably less than that of the outer brush teeth. The aerosol type hair dye kit according to <1>, wherein is 1/500 or more, more preferably 1/400 or more, and still more preferably 1/200 or more.

<3> The aerosol hair dye kit according to <1> or <2>, wherein the inner brush teeth and the outer brush teeth are preferably arranged in a staggered manner.

<4> Preferably, any one of <1> to <3>, wherein the outer brush teeth are erected in a state inclined from the direction perpendicular to the base surface of the brush base to the outer side in the width direction of the brush base. The aerosol-type hair dye kit of Claim 1.

<5> Preferably, the outer brush teeth are erected in a state inclined from the direction perpendicular to the base surface of the brush base to the outer side in the width direction of the brush base at an inclination angle of 5 to 45 degrees. The aerosol hair dyeing kit according to any one of 1> to <3>.

<6> Preferably, the inner brush teeth are erected such that the tip height in a direction perpendicular to the base surface of the brush base is equal to or less than the tip height of the outer brush teeth. <1> The aerosol hair dye kit according to any one of to <5>.

<7> Preferably, the inner brush teeth are erected such that the tip height in a direction perpendicular to the base surface of the brush base is 0.5 to 10 mm lower than the tip height of the outer brush teeth. The aerosol hair dye kit according to any one of <1> to <5>.

<8> Preferably, the outer brush teeth are formed using polyethylene resin, polypropylene resin or ABS resin (acrylonitrile / butadiene / styrene copolymer resin), and the inner brush teeth are formed using elastomer. <1>-<7> The aerosol type hair dye kit of any one of <7>.

<9> Preferably, an intermediate brush tooth row composed of a plurality of intermediate brush teeth arranged at a predetermined interval in the length direction of the brush base at an intermediate portion between the inner brush tooth rows on both sides. The aerosol type hair dye kit according to any one of <1> to <8>, which is provided.

<10> Preferably, an end brush tooth row comprising a plurality of end brush teeth arranged at predetermined intervals in the width direction of the brush base is provided at both ends in the length direction of the brush base. The aerosol hair dyeing kit according to any one of <1> to <9>.

<11> Preferably, component (1A) is one or more selected from alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, and dialkyldimethylammonium salts, and any one of <1> to <10> The aerosol-type hair dyeing kit according to item 1.

<12> Preferably, the content of the component (1A) in the first agent composition is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and preferably 3% by mass or less, more preferably The aerosol type hair dye kit according to any one of <1> to <11>, wherein is 2% by mass or less.

<13> The aerosol type according to any one of <1> to <12>, wherein the component (1B) is preferably a polyoxyalkylene alkyl or alkenyl ether represented by the following general formula (4): Hair dye kit.
R ⁵ —O — [(CH ₂ ) _x —O] _n —H (4)
[Wherein, R ⁵ represents a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms, x represents a number of 2 or 3, and n represents an average value of 1 or more and 100 or less. ]

<14> Preferably, the content of the component (1B) in the first agent composition is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and preferably 5% by mass or less, more preferably The aerosol type hair dye kit according to any one of <1> to <13>, wherein is 3% by mass or less.

<15> The aerosol hair dye kit according to any one of <1> to <14>, wherein the component (1C) is a higher alcohol represented by the following general formula (6).
R ⁹ -OH (6)
[Wherein R ⁹ represents a linear or branched alkyl or alkenyl group having 12 to 24 carbon atoms. ]

<16> Component (1C) is preferably (1C ₁ ) wherein R ⁹ in general formula (6) is a linear alkyl group having 12 to 20 carbon atoms, and further 14 to 20 carbon atoms, (1C ₂ ) A combination with a compound in which R ⁹ in the general formula (6) is a linear alkyl group having 20 to 24 carbon atoms, more preferably 20 to 22 carbon atoms, and component (1C ₂ ) and component (1C ₁₎ the mass ratio of _{(1C 2) / (1C 1} ), preferably 0.20 or more, more preferably 0.22 or more, still more preferably 0.24 or more, and preferably 0.75 or less, more preferably 0.73 or less The aerosol type hair dye kit according to <15>, more preferably 0.71 or less.

<17> Preferably, the content of the component (1C) in the first agent composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and further preferably 1.0% by mass or more. The aerosol type hair dye kit according to any one of <1> to <16>, wherein is 10% by mass or less, more preferably 8% by mass or less, and still more preferably 6% by mass or less.

<18> Preferably, the component (1D) is one or more selected from hydrocarbon oils, silicone oils, ester oils, fluorine oils and animal and vegetable oils, and any one of <1> to <17> The aerosol type hair dye kit according to item.

<19> Preferably, the content of the component (1D) in the first agent composition is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and preferably The aerosol hair dye kit according to any one of <1> to <18>, wherein is 20% by mass or less, more preferably 17% by mass or less, and still more preferably 13% by mass or less.

<20> The mass ratio (1D) / (1C) of the component (1D) to the component (1C) in the first agent composition is preferably 0.16 or more, more preferably 0.20 or more, still more preferably 0.25 or more, still more preferably Is 0.30 or more, more preferably 0.31 or more, more preferably 0.40 or more, further preferably 0.50 or more, preferably 2.20 or less, more preferably 2.00 or less, more preferably 1.90 or less, more preferably 1.84 or less, and further The aerosol hair dye kit according to any one of <1> to <19>, which is preferably 1.70 or less, more preferably 1.50 or less.

<21> Preferably, the aerosol type according to any one of <1> to <20>, wherein the component (2B) is a polyoxyethylene alkyl or alkenyl ether represented by the following general formula (8): Hair dye kit.
R ¹⁰ —O— (CH ₂ CH ₂ —O) _m —H (8)
[Wherein, R ¹⁰ represents a linear or branched saturated or unsaturated alkyl group or alkenyl group having 8 to 22 carbon atoms, and m represents an average value of 1 to 100. ]

<22> Component (2B) is preferably (2B ₁ ) wherein m in general formula (8) is 1 or more and less than 30, and (2B ₂ ) m in general formula (8) is 30 or more and 100 or less. More preferably (2B ₁ ) wherein m in formula (8) is 1 or more and 20 or less, and (2B ₂ ) where m in formula (8) is 35 or more and 60 or less. A combination with a certain one, more preferably (2B ₁ ) wherein m in the general formula (8) is 1 or more and 10 or less, and (2B ₂ ) m in the general formula (8) is 35 or more and 45 or less. The mass ratio of the component (2B ₁ ) and the component (2B ₂ ) [(2B ₁ ) / (2B ₂ )] is preferably 0.05 or more, more preferably 0.11 or more, and still more preferably 0.18 The aerosol type hair dye kit according to <21>, more preferably 0.25 or more, preferably 4.00 or less, more preferably 1.50 or less, further preferably 1.00 or less, and further preferably 0.67 or less.

<23> The content of the component (2B) in the second agent composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, further preferably 2% by mass or more, and further preferably 5% by mass or more. And preferably 15% by mass or less, more preferably 12% by mass or less, further preferably 10% by mass or less, and further preferably 9% by mass or less, according to any one of <1> to <22>. Aerosol hair dye kit.

<24> The aerosol hair dye kit according to any one of <1> to <23>, wherein the component (2C) is preferably a higher alcohol represented by the following general formula (9).
R ¹¹ -OH (9)
[Wherein, R ¹¹ represents a linear or branched alkyl group or alkenyl group having 12 to 24 carbon atoms. ]

<25> Component (2C) is preferably (2C ₁ ) wherein R ¹¹ in general formula (9) is a linear alkyl group having 12 to 20 carbon atoms, and (2C ₂ ) general formula (9 ) In which R ¹¹ is a linear alkyl group having 20 to 24 carbon atoms, more preferably (2C ₁ ) R ¹¹ in the general formula (9) is a linear chain having 14 to 18 carbon atoms. A combination of an alkyl group and (2C ₂ ) wherein R ¹¹ in the general formula (9) is a straight chain alkyl group having 20 to 22 carbon atoms, the component (2C ₁ ) and the component (2C ₂ )) [(2C ₁ ) / (2C ₂ )] is preferably 0.05 or more, more preferably 0.11 or more, still more preferably 0.17 or more, still more preferably 0.25 or more, and preferably 19.00 or less. More preferably, it is 9.00 or less, More preferably, it is 5.67 or less, More preferably, it is 4.00 or less, The aerosol type hair dye kit as described in <24>.

<26> The content of the component (2C) 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, and further preferably 2% by mass or more. More preferably, it is 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, and further preferably 10% by mass or less. The aerosol hair dye kit according to any one of <1> to <25>, more preferably 8% by mass or less.

<27> Preferably, the component (2D) is one or more selected from liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, and squalane, <1> to <26> The aerosol type hair dye kit of any one of these.

<28> The content of the component (2D) 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, more preferably 15% by mass or less, and still more preferably 12% by mass or less, according to any one of <1> to <27>.

<29> The total mass ratio [(2C) + (2D)] / (2B) of the components (2C) and (2D) to the component (2B) in the second agent composition is preferably 1.0 or more, more preferably The aerosol type according to any one of <1> to <28>, which is 1.2 or more, more preferably 1.5 or more, preferably 3.5 or less, more preferably 3.3 or less, and still more preferably 3.2 or less. Hair dye kit.

<30> The mass ratio (2D) / (2C) of the component (2D) to the component (2C) in the second agent composition is preferably 1.2 or more, more preferably 1.3 or more, and preferably 2.2 or less. The aerosol hair dye kit according to any one of <1> to <29>, more preferably 2.1 or less.

  The 1st agent composition and 2nd agent composition of the mixing | blending prescription shown in Table 1 were prepared. Next, a double aerosol container in which the inner bag enclosing the first agent composition and the inner bag enclosing the second agent composition are housed in independent aerosol containers (FIG. 2 of JP-A-2015-229666). ) Were filled with 40 g of the first agent composition and 40 g of the second agent composition, and nitrogen gas was further filled between the inner bag and the container to produce an aerosol type hair dye. .

[Brush for hair treatment agent]
As the hair treatment brush, the one shown in FIG. 1 was used. This brush has a 6 cm × 2 cm brush base, and the brush base has an outer brush tooth made of polypropylene having a tensile elastic modulus of 1300 MPa and an inner brush tooth made of styrene-based elastomer having a tensile elastic modulus of 10 MPa. It is arranged. Using this hair treatment brush, the following hair dyeing treatment was evaluated.

[Hair dyeing and evaluation method]
From the aerosol-type hair dye double aerosol container, the first agent composition and the second agent composition are simultaneously discharged to place about 5 g on the hair treatment brush, from the top of the head to the hair tip. Was applied to a wig with a hair length of 25 cm. The first agent composition and the second agent composition were mixed while being applied on the hair of the wig.
When applying hair dyeing with an aerosol type hair dye composition, “difficult to sag the agent from the brush during application”, “ease of applying the agent to the root”, “ease of spreading the agent”, “drying” Regarding each item of “leveling ability of the later gray hair”, according to the following criteria, evaluation was made by a non-restricted selective answer method of the direct judgment method by five panelists who have experienced hair dyeing.

Evaluation criteria for “difficulty of agent dripping from brush at the time of application” A straight line with a length of 5 cm is drawn horizontally, the left end of the straight line is “no dripping from the brush”, and the right end is “no dripping from the brush”. Based on the ratio of the amount of dripping to the total amount, the degree of difficulty of dripping of the agent from the brush at the time of application was evaluated according to how many cm from the left end of this straight line. Table 1 shows the number of panelists who marked each item within 1 cm from the left end (the amount of dripping: 20% or less of the total amount) as “hardness of dripping from the agent brush”.

Evaluation criteria for “Ease of applying agent to root” A straight line with a length of 5 cm is drawn horizontally, the left end of the straight line is “the agent on the brush moves to the root”, and the right end is “the agent on the brush is at the root. Based on the ratio of the amount of the amount of the agent transferred from the brush to the base to the total amount, the evaluation of the ease of applying the agent to the base is made according to how many centimeters it is from the left end of this line. went. Table 1 shows the number of panelists who marked each item within 1 cm from the left end (the amount transferred to the base: 80% or more of the total amount) as “ease of application of the agent to the base”.

Evaluation criteria for “Easiness of drug extension” A straight line with a length of 5 cm is drawn horizontally, and the left end of the line is “After the brush on which the drug is placed is applied to the top of the head, it can be moved without any resistance from the top of the head toward the head of the head. "The right end is" the brush on which the agent is placed on the top of the head and then does not move at all from the top of the head to the side of the head. " Based on the amount ratio, the easiness of extending the agent was evaluated according to how many cm from the left end of the straight line. Table 1 shows the number of panelists who marked each item within 1 cm from the left edge (distance that the brush could be moved from the top of the head to the side of the head: 80% or more of the total length) as “ease of extension”.

Evaluation criteria for “leveling of white hair after drying” A straight line with a length of 5 cm is drawn horizontally, the left end of the straight line is “no distinction between white hair and black hair (or brown hair)”, and the right end is “white hair and black hair (or brown hair) ) Is clearly distinguishable, "and after drying, depending on how many cm from the left end of this straight line, based on the ratio of the amount of white hair after dyeing to the state of white hair before dyeing The leveling of white hair was evaluated. Table 1 shows the number of panelists who marked each item within 1 cm from the left end (the amount of white hair: the amount of white hair after drying is 20% or less of the total) as “white hair leveling”.

(Evaluation method of equal ratio discharge)
The first agent composition and the second agent composition were immediately immersed in a 30 ° C. or 10 ° C. water bath after being filled in the aerosol container in which the first agent composition and the second agent composition were discharged from different discharge ports. After 30 minutes from the start of immersion, the aerosol container was taken out of the water bath, the hair dye composition was discharged, and the creamy first agent composition and second agent composition were separated.
Here, the discharge starting immediately after removal from the water bath and T _1, and each M ₁ and N ₁ to discharge the weight of the first composition and the second composition upon discharge from T ₁ 5 seconds, N The ratio of M ₁ to ₁ was defined as the discharge amount ratio R ₁ . Then, T ₁ from discharging again 5 seconds T ₂ of the post 2 minutes, discharged the mass of the first composition and the second composition at that time a and M ₂ and N _2, respectively, for N ₂ of M ₂ and the ratio between the discharge amount ratio R _2. That is, _assuming that the discharge masses of the first agent composition and the second agent composition discharged in 5 seconds at the discharge start time T _n are M _n and N _n , the discharge amount ratio R _n is given by the following equation (10). Can be calculated.
(R _n ) = (M _n ) / (N _n ) (10)
If the discharge rate ratio (R _n ) is within the range from the lower limit 1−0.33 (ie 0.67) to the upper limit 1 + 0.50 (ie 1.50), a sufficient hair dyeing effect can be exhibited as a hair dye. The inside case is assumed to be in an equal ratio state.

  The discharge amount ratio R of the first agent composition and the second agent composition was in the range of 0.97 to 1.39, and both were within the definition range of the equal ratio state. That is, the discharge amount of the first agent and the discharge amount of the second agent were in an equal ratio state.

10 Brush for hair treatment
11 Brush stand
11a Top view
11b ground
11c base
11d Soft base
11e Insertion recess
12 outer brush teeth
12a outer brush teeth
13 inner brush teeth
13a Inner brush teeth
13b Tip
14 Middle brush teeth
14a Intermediate brush teeth
15 End brush dentition
15a End brush teeth
20 Hair treatment tools
21 Comb
22 Brush part
23 Mini brush
24 Handle
25 Board section
30a First agent composition
30b Second agent composition X Length direction of brush base Y Width direction of brush base Z Direction perpendicular to the base surface of brush base M Direction of moving brush for hair treatment agent

Claims (14)

An aerosol hair dye kit comprising a first agent composition for aerosol hair dye, a second agent composition for aerosol hair dye, and a brush for hair treatment agent,
The first composition for aerosol hair dye contains the following components (1A) to (1F),
(1A) Cationic surfactant
(1B) Nonionic surfactant
(1C) Higher alcohol
(1D) Oil that is liquid at 25 ° C
(1E) Oxidative dye intermediate
(1F) Alkaline agent The second agent composition for aerosol hair dye contains the following components (2A) to (2D),
(2A) Hydrogen peroxide
(2B) Nonionic surfactant
(2C) Higher alcohol
(2D) A plurality of hydrocarbon brushes for hair treatment agent are provided along side edges on both sides in the width direction of the brush base, and are arranged at predetermined intervals in the length direction of the brush base. And a plurality of inner brush teeth provided adjacent to the inner side in the width direction of the outer brush teeth and arranged at predetermined intervals in the length direction. An inner brush tooth row, and the tensile elastic modulus of the inner brush teeth is lower than the tensile elastic modulus of the outer brush teeth.
Aerosol hair dye kit.   The aerosol-type hair dye kit according to claim 1, wherein the inner brush teeth and the outer brush teeth are arranged in a staggered manner.   The outer brush teeth are formed using polyethylene resin, polypropylene resin or ABS resin (acrylonitrile / butadiene / styrene copolymer resin), and the inner brush teeth are formed using elastomer. The aerosol type hair dyeing kit according to 1.   The aerosol type dyeing according to any one of claims 1 to 3, wherein the mass ratio (1D) / (1C) of the component (1D) to the component (1C) in the first agent composition is 0.16 or more and 2.2 or less. Hair kit. The aerosol type hair dye kit according to any one of claims 1 to 4, wherein the component (1C) is a higher alcohol represented by the following general formula (6).
R ⁹ -OH (6)
[Wherein R ⁹ represents a linear or branched alkyl or alkenyl group having 12 to 24 carbon atoms. ] The component (1C) is a higher alcohol in which R ⁹ in the general formula (6) is a linear alkyl group having 12 to 20 carbon atoms and R ⁹ in the general formula (6) is a straight chain having 20 to 24 carbon atoms. The aerosol-type hair dye kit according to claim 5, which is a combination of a higher alcohol which is a chain alkyl group.   The aerosol hair dye kit according to any one of claims 1 to 6, wherein the content of the component (1C) in the first agent composition is 0.1% by mass or more and 10% by mass or less.   The total mass ratio [(2C) + (2D)] / (2B) of components (2C) and (2D) to component (2B) in the second agent composition is 1.0 or more and 3.5 or less, and component (2C) The aerosol type hair dye kit according to any one of claims 1 to 7, wherein a mass ratio (2D) / (2C) of the component (2D) to is 1.2 or more and 2.2 or less. The aerosol type hair dye kit according to any one of claims 1 to 8, wherein the component (2B) is polyoxyethylene alkyl or alkenyl ether represented by the following general formula (8).
R ¹⁰ —O— (CH ₂ CH ₂ —O) _m —H (8)
[Wherein, R ¹⁰ represents a linear or branched saturated or unsaturated alkyl group or alkenyl group having 8 to 22 carbon atoms, and m represents an average value of 1 to 100. ]   Component (2B) is a polyoxyethylene alkyl or alkenyl ether in which m in general formula (8) is 1 or more and less than 30 and a polyoxyethylene alkyl or alkenyl in which m in general formula (8) is 30 or more and 100 or less The aerosol-type hair dye kit according to claim 9, which is a combination with ether.   The aerosol type hair dye kit according to any one of claims 1 to 10, wherein the content of the component (2B) in the second agent composition is 0.5 mass% or more and 15 mass% or less. The aerosol-type hair dye kit according to any one of claims 1 to 11, wherein the component (2C) is a higher alcohol represented by the following general formula (9).
R ¹¹ -OH (9)
[Wherein, R ¹¹ represents a linear or branched alkyl group or alkenyl group having 12 to 24 carbon atoms. ] The component (2C) is a higher alcohol in which R ¹¹ in the general formula (9) is a linear alkyl group having 12 to 20 carbon atoms and R ^{11 in the} general formula (9) has 20 to 24 carbon atoms. 13. The aerosol type hair dye kit according to claim 12, which is a combination of a higher alcohol which is a linear alkyl group.   The aerosol type hair dye kit according to any one of claims 1 to 13, wherein the content of the component (2C) in the second agent composition is 0.5 mass% or more and 30 mass% or less.