JP5984212B2 - Aerosol type foamy hair dye composition - Google Patents

Description

  The invention according to the present application relates to an oxidative hair dye composition. Specifically, the present invention relates to an aerosol-type foamy oxidative hair dye composition.

  2. Description of the Related Art Conventionally, aerosol-type foamy oxidative hair dye compositions that are discharged in the form of foam using a propellant such as LPG are known. The aerosol type foam hair dye composition is stored in an aerosol container together with a propellant using each agent as a stock solution.

  When used, the aerosol foam hair dye composition can be easily discharged in a foam form by simply pressing a button of an aerosol container, as compared with liquid and cream dosage forms. There is also an advantage that it can be used in multiple times.

  The aerosol-type foamy hair dye composition usually includes a first agent that contains an alkaline agent and a dye component and a second agent that contains an oxidizing agent. And a 1st agent and a 2nd agent are accommodated separately, and mix at the time of use.

  As described in the following Patent Document 1, a surfactant, a linear higher alcohol, and at least one of a branched higher alcohol and a hydrocarbon having a branched chain are blended in the first agent or the second agent, There are known foam-like hair dye compositions and foam-like decolorizer compositions capable of uniformly dyeing or decoloring while suppressing dripping.

  As described in Patent Document 2 below, an aerosol-type foamy hair dye / bleaching agent that suppresses an irritating odor, has good hair feel after hair dyeing or decoloring treatment, and has improved foam formation under low temperature conditions Compositions are known.

  Moreover, various aerosol containers are known including an aerosol container disclosed in Patent Document 3 below. The aerosol container disclosed in the following Patent Document 3 has a simultaneous mixing and discharging mechanism, includes two cans and a head part, and a first agent that mixes an alkaline agent and a second agent that mixes an oxidizing agent are injected. It is housed in a separate can with the agent. By pressing the lever 30d of the aerosol container, the discharge part 30c conducts to the outside, and the first agent and the second agent reach the mixing passage 30m from each can 30f through the stem 30j and the communication hole 30l, respectively. Then, it is discharged from the discharge part 30c in a foamy dosage form.

JP 2003-73240 A JP 2010-280580 A JP 2002-284655 A

  In the aerosol foam hair dye composition, the stability of the dosage form such as an emulsion during storage is important. In particular, the improvement of the stability is important in order to take advantage of the fact that it can be used in a plurality of times. When an oxidation dye is blended, the stability of the emulsion tends to decrease, and there is room for improvement in the stability of the emulsion.

  The stability of the emulsion is also important for discharging fine bubbles. If each of the first agent and the second agent can be discharged with fine bubbles, the mixture becomes fine and the operability tends to be good. On the other hand, when the foam texture of the first agent or the second agent becomes coarse, the foam texture of the mixture becomes coarse, and the operability tends to be lowered.

  In general, higher alcohols having a large number of carbon atoms tend to roughen the foam, although they contribute to the improvement of hair dyeing power. For this reason, even if a higher alcohol having a large number of carbon atoms is blended, there are cases where good hair coloring cannot be achieved, for example, operability is lowered. Moreover, although higher alcohols with a small number of carbon atoms can make fine bubbles, the hair dyeing power tends to be low. Therefore, the parallel arrangement of obtaining fine foam and improving hair dyeing power is important in the aerosol-type foamy oxidative hair dye composition.

  As described in Patent Document 1 Example 6 and Example 8 and the like, there is a foam hair dye composition containing a higher alcohol (behenyl alcohol) of C20 or higher and a higher alcohol (hexyldecanol) of C18 or lower. However, there was room for improvement in the stability of the emulsion. The above Patent Document 1 Example 6 and Example 8 are mass ratios of nonionic surfactant and higher alcohol as compared with the agent (A) in the aerosol foamed hair dye composition disclosed in the present application. Is different.

  As disclosed in the above-mentioned Examples of Patent Document 2, there is an aerosol foam hair dye / bleaching agent composition containing a C18 or higher alcohol (cetanol, isostearyl alcohol). However, there was room for improvement in terms of hair dyeing power.

  As a result of extensive research, the inventor of the present application has used a nonionic surfactant, a higher alcohol of C20 or higher, and a higher alcohol of C18 or lower in combination, and the mass ratio of the nonionic surfactant to the higher alcohol is constant. If the composition contains an agent within the range, surprisingly, an aerosol-type foamy oxidative hair dye composition having excellent emulsion stability, fine-grained foam, and excellent hair dyeing power can be obtained. I found out that it could be realized.

  Therefore, it is an object to be solved to provide an aerosol foam oxidation hair dye composition excellent in stability, hair dyeing power and foam quality of an emulsion.

(First invention)
The configuration of the first invention of the present application for solving the above problems is as follows.
It is an aerosol-type foamy oxidative hair dye composition in which a plurality of agents are discharged and mixed at the time of use, and is an aerosol-type foamy oxidative hair dye composition that contains an agent that satisfies the following condition (A).
(A) An emulsion, comprising a nonionic surfactant, a C20 or higher alcohol, and a C18 or higher alcohol, and the mass ratio of the nonionic surfactant to the higher alcohol is Ionic surfactant / higher alcohol = 1.5-50.

  For convenience of explanation, “C20” and “C18” in this specification indicate the number of carbon atoms.

(Second invention)
The configuration of the second invention of the present application for solving the above problem is as follows.
The aerosol-type foamy oxidative hair dye composition according to the first aspect, wherein the agent satisfying the condition (A) has a viscosity of 2000 mPa · s or less.

(Third invention)
The configuration of the third invention of the present application for solving the above problem is as follows.
In the agent satisfying the condition (A), the aerosol foam oxidation according to the first or second invention, wherein the mass ratio of C20 or higher alcohol to all higher alcohols is 0.005 to 0.9. It is a hair dye composition.

  The aerosol foam oxidation hair dye composition disclosed in the present application is excellent in stability of an emulsion, can obtain fine-grained foam, and has excellent hair dyeing power.

  Hereinafter, embodiments of the invention disclosed in the present application will be described including the best embodiment.

  First, terms will be explained. In the present specification, “hair” is not particularly limited, but preferably refers to hair in a state of growing on the head. The hair is preferably human hair.

  In the present specification, the “oxidative hair dye composition” means a hair dye composition containing an oxidation dye. Since it is housed in an aerosol container together with a propellant and discharged and used in the form of a foam, it is an aerosol foamed oxidative hair dye composition. The aerosol-type foamy oxidative hair dye composition is a multiple-agent type. It may be a two-agent type or a three-component type or more. Preferably, it is a two-agent type.

  For convenience of explanation, in the description of the invention disclosed in the present application, each agent constituting the aerosol foamed hair dye composition is described as not containing a propellant. In the examples described below, each agent that does not contain a propellant is referred to as a “stock solution” and is filled with a propellant and enclosed in an aerosol container. The propellant and aerosol container will be described later.

  In the present specification, the “mixture” of the aerosol foam hair dye composition refers to a mixture of a plurality of agents constituting the aerosol foam hair dye composition. Since the aerosol type foamy hair dye composition disclosed in the present application is discharged from an aerosol container during use, the mixture is often foamy. However, it may also refer to a defoamed mixture after application to the hair.

The aerosol foam hair dye composition of a multiple agent type performs a hair dyeing treatment by mixing a plurality of agents including a first agent containing an alkaline agent and a second agent containing an oxidizing agent immediately before use. . In the invention disclosed in the present application, the method for mixing the plural agents and the method for applying to the hair are not particularly limited,
(1) After multiple agents are separately discharged from an aerosol container, they are mixed before being applied to the hair.
(2) After multiple agents are separately ejected from the aerosol container, they are mixed when applied to the hair.
(3) After multiple agents are separately discharged from the aerosol container, they are mixed on the hair after being applied to the hair.
(4) A plurality of agents are mixed in the aerosol container or the head, and the mixture is discharged from the aerosol container and then applied to the hair.
One of them.

  Each discharged agent or mixture is preferably applied to the hair after it is once taken by hand or brush, or directly. When using hands here, it is preferable to wear gloves. The range to which the foam is applied may be the entire hair or only a specific part.

  As described above, the present application also discloses a hair dyeing method using an aerosol-type oxidized hair dye composition.

  The viscosity can be determined at 25 ° C. using a B-type viscometer with a No. 2 rotor for 1 minute under a measurement condition of 12 rpm / min. Specific examples of the B type viscometer include, for example, a BL type viscometer VISCOMETER (manufactured by Toki Sangyo Co., Ltd.).

[Aerosol type foam hair dye composition]
The present application is an aerosol-type foam oxidative hair dye composition in which a plurality of agents are discharged and mixed at the time of use, and an aerosol-type foam oxidative hair dye composition comprising an agent satisfying the following condition (A) Is disclosed.

  (A) An emulsion, comprising a nonionic surfactant, a C20 or higher alcohol, and a C18 or higher alcohol, and the mass ratio of the nonionic surfactant to the higher alcohol is Ionic surfactant / higher alcohol = 1.5-50.

  Prior to the description of the condition (A), the basic structure of the aerosol foamed hair dye composition will be described.

-First agent-
The aerosol-type foamy oxidative hair dye composition which this application discloses contains in the structure the 1st agent which mix | blends an alkaline agent.

  It is preferable that the compounding quantity of the alkali agent in a 1st agent is 0.5-20 mass%. Moreover, it is preferable that pH of a 1st agent is 8-12.

  The dosage form of the first agent is not particularly limited as long as it can be discharged in a foam form from the aerosol container. Examples include emulsions and solubilized products. Preferably, it is an emulsion.

  The first agent contains an alkaline agent. Examples of alkali agents include ammonia, ammonium salts, alkanolamines, organic amines (2-amino-2-methyl-1,3-propanediol, guanidine, etc.), inorganic alkalis (sodium hydroxide, potassium hydroxide, etc.), Examples thereof include carbonates (sodium carbonate, potassium carbonate, ammonium carbonate, ammonium hydrogen carbonate, etc.), basic amino acids (arginine, lysine, etc.) and salts thereof. Specific examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, isopropanolamine, dipropanolamine, tripropanolamine, 2-amino-2-methyl-1,3-propanediol, 2- Examples include amino-2-methyl-1-propanol and 2-amino-2-hydroxymethyl-1,3-propanediol. These 1 type (s) or 2 or more types can be used.

  The first agent contains an oxidation dye. Furthermore, you may mix | blend a direct dye. The blending amount of the oxidation dye is preferably 0.01 to 7% by mass.

  Oxidative dyes are compounds that can develop color by oxidative polymerization. The oxidation dye is not particularly limited, and examples thereof include dye intermediates, couplers, and melanin precursors.

  More specifically, for example, as oxidative dyes, phenylenediamine and derivatives thereof, phenol derivatives, aminophenol and derivatives thereof, diphenylamine and derivatives thereof, pyridine derivatives, pyrimidine derivatives, pyrazole derivatives, pyrrolidine derivatives, toluene derivatives, indole derivatives, Examples include pyrrole derivatives and imidazole derivatives.

  More specifically, for example, as a dye intermediate, phenylenediamines (excluding metaphenylenediamine), aminophenols (however, metaaminophenol, 2,4-diaminophenol and paramethylaminophenol are included. Toluylenediamine (except for toluene-3,4-diamine and toluene-2,4-diamine), diphenylamines, diaminophenylamines, N-phenylphenylenediamines, diaminopyridines ( However, 2,6-diaminopyridine is excluded).

  As couplers, pyrogallol, resorcin, catechol, metaaminophenol, metaphenylenediamine, 2,4-diaminophenol, 1,2,4-benzenetriol, toluene-3,4-diamine, toluene-2,4-diamine, Hydroquinone, α-naphthol, 2,6-diaminopyridine, 1,5-dihydroxynaphthalene, 5-aminoorthocresol, paramethylaminophenol, 2,4-diaminophenoxyethanol, gallic acid, tannic acid, ethyl gallate, gallic acid Examples include methyl, propyl gallate, pentaploid, 5- (2-hydroxyethylamino) -2-methylphenol, and the like.

  An oxidative dye is a concept that includes a salt of a compound that can develop color by oxidative polymerization. For example, acid addition salts of the above-mentioned compounds can be mentioned. Preferably, an addition salt of an organic acid, an addition salt of an inorganic acid, or the like is used.

  These oxidation dyes may be blended alone or in combination.

  Examples of direct dyes include acid dyes, basic dyes, natural dyes, nitro dyes, and disperse dyes. These direct dyes may be blended alone or in combination.

  Examples of the acid dye include Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 227, Red No. 230 (1), Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Dai No. 205, Dai No. 207, Dai No. 402, Green No. 3, Green No. 204 Green 401, purple 401, blue 1, blue 2, blue 202, brown 201, black 401 and the like.

  The basic dyes include Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 47, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17 , Basic Green 1, Basic Green 4, Basic Orange 1, Basic Orange 2, Basic Orange 31, Basic Red 1, Basic Red 2, Basic Red 22, Basic Red 46, Basic Red 51, Basic Red 76, Basic Red 118, Basic Examples include Violet 1, Basic Violet 3, Basic Violet 4, Basic Violet 10, Basic Violet 11: 1, Basic Violet 14, Basic Violet 16, Basic Yellow 11, Basic Yellow 28, Basic Yellow 57, Basic Yellow 87, and the like.

  Examples of the natural dye include gardenia pigments, turmeric pigments, anato pigments, copper chlorophyllin sodium, paprika pigments, and rack pigments.

  Examples of the nitro dye include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picramic acid, picric acid, and the like. HC Blue No.2, HC Blue No.5, HC Blue No.6, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13 , HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No.14, HC Violet No.1, HC Violet No.2, HC Yellow No.2, HC Yellow No.4, HC Yellow No.5, HC Yellow No.6, HC Yellow No .9, HC Yellow No. 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15 and the like.

  Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse Violet 4, Disperse Violet 15 etc. can be illustrated.

-Second agent-
The aerosol-type foamy oxidative hair dye composition which this application discloses contains in the structure the 2nd agent which mix | blends an oxidizing agent.

  It is preferable that the compounding quantity of the oxidizing agent in a 2nd agent is 0.1-15 mass%. Moreover, it is preferable that pH of a 2nd agent is 1-5.

  The dosage form of the second agent is preferably an emulsion or a solubilized product. More preferred is an emulsion.

  The second agent contains an oxidizing agent. Examples of oxidizing agents include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, magnesium peroxide, and peroxide. Examples include barium, calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adduct, phosphate hydrogen peroxide adduct, pyrophosphate hydrogen peroxide adduct, and the like. These oxidizing agents may be blended singly or in combination of two or more. Among these oxidizing agents, hydrogen peroxide is preferred because it is excellent in melanin decomposition.

-Other ingredients in each agent-
The aerosol type foamy hair dye composition disclosed in the present application includes a plurality of agents including the first agent and the second agent. In addition to the components described above, the multiple agent may contain any component. For example, water, water-soluble polymer containing hydroxyethyl cellulose, higher alcohol, solvent containing 1,3-butylene glycol, glycerin, propylene glycol, surfactant, fatty acid, thickener, amino acids except basic amino acids, fats and oils, Waxes, silicones, hydrocarbons including liquid paraffin, saccharides such as sorbitol and maltose, antiseptic ingredients such as parabens and sodium benzoate, chelating ingredients such as EDTA-2Na, diethylenetriaminepentaacetic acid, hydroxyethanediphosphonic acid, phenacetin, 8-hydroxyquinoline, acetanilide, phenoxyethanol, sodium pyrophosphate, barbituric acid, uric acid, tannic acid and other stable components, pH adjusting components, antioxidants such as sodium sulfite, plant or herbal extracts, and ascorbic acids S, may be blended one or more selected from perfumes. In addition, for example, at least one selected from those listed in “Quasi-drug raw material standards 2006” (Pharmaceutical Daily) may be blended.

[Conditions to be satisfied by at least one of a plurality of agents]
The aerosol type foamy hair dye composition disclosed in the present application is composed of a plurality of agents. One of the multiple agents must satisfy the following condition (A). The first agent or the second agent satisfies the following condition (A). More preferably, the first agent satisfies the following condition (A). In addition, two or more plural agents may satisfy the following condition (A), and the first agent and the second agent may satisfy the following condition (A).

  In the aerosol foamed hair dye composition disclosed in the present application, at least one of the plurality of agents satisfies the following condition (A). The agent that satisfies the following condition (A) is referred to as (A) agent for convenience of explanation.

  (A) An emulsion, comprising a nonionic surfactant, a C20 or higher alcohol, and a C18 or higher alcohol, and the mass ratio of the nonionic surfactant to the higher alcohol is Ionic surfactant / higher alcohol = 1.5-50.

  Nonionic surfactants include polyoxyalkylene addition type, sugar addition type, glycerin addition type, and alkanolamide addition type. One or more of these may be used. The same applies to the following specific examples.

  Examples of polyoxyalkylene addition type nonionic surfactants include ether types such as polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene polyoxypropylene alkyl ether, and ester types such as polyoxyethylene fatty acid ester. it can. Examples of the sugar-added nonionic surfactant include sugar ethers such as alkylpolyglucoside, sugar esters such as sucrose fatty acid ester and sorbitan fatty acid ester, and sugar amides such as fatty acid glycol amide. Examples of the glycerin-added nonionic surfactant include alkyl glyceryl ether and glycerin fatty acid ester. Examples of the alkanolamide type nonionic surfactant include fatty acid monoalkanolamide, fatty acid diethanolamide and the like.

  Specific examples of ether type nonionic surfactants include polyoxyethylene (hereinafter also referred to as POE) cetyl ether, POE stearyl ether, POE behenyl ether, POE oleyl ether, POE lauryl ether, POE myristyl ether, POE octyldodecyl ether POE hexyl decyl ether, POE isostearyl ether, POE nonyl phenyl ether, POE octyl phenyl ether, POE polyoxypropylene (hereinafter also referred to as POP) cetyl ether, and the like.

  Specific examples of the ester type nonionic surfactant include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerin monostearate, monomyristine Acid POE glycerin, tetraoleic acid POE sorbite, hexastearic acid POE sorbit, monolauric acid POE sorbit, POE sorbit beeswax, monooleic acid polyethylene glycol, monostearic acid polyethylene glycol, monolauric acid polyethylene glycol, lipophilic monooleic acid glycerin, Lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sesquiolein Sorbitan, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate, etc. It can be illustrated.

  When the nonionic surfactant contains polyoxyethylene, the polymerization number is preferably 2 to 50.

  (A) agent mix | blends a nonionic surfactant. 0.1-10 mass% is preferable and the compounding quantity of a nonionic surfactant has more preferable 0.5-5 mass%.

  As a nonionic surfactant, from the viewpoint of improving foaming properties, it is preferable to blend a POE alkyl ether in which the agent (A) is C14 or less. Specific examples include POE lauryl ether and POE myristyl ether. The polymerization number of the polyoxyethylene is preferably 2-30. The alkyl group of C14 or less is preferably saturated and is preferably a linear type.

  More preferably, the C14 or lower POE alkyl ether and the C16 or higher POE alkyl ether are used in combination. Examples of C16 or higher POE alkyl ethers include POE cetyl ether, POE oleyl ether, POE stearyl ether, POE isostearyl ether, and POE behenyl ether. The polymerization number of the polyoxyethylene is preferably 2-50. The C16 or higher alkyl group is preferably saturated and is preferably a straight chain.

  In the agent (A), the mass ratio of the nonionic surfactant is preferably “C16 or more POE alkyl ether / C14 or less POE alkyl ether” = 0.1-7. More preferably, it is 0.5-3. If it is in the range of these ratios, foaming property will improve more.

  The agent (A) may be blended with a C16 or lower alkyltrimethylammonium that is a cationic surfactant and a salt thereof from the viewpoint of improving foamability. Specific examples include lauryltrimethylammonium, cetyltrimethylammonium, and salts thereof. These 1 type (s) or 2 or more types can be used. Moreover, it is preferable that the C16 or less alkyl group in a cationic surfactant is saturated, and it is preferable that it is a linear type.

  The blending amount of C16 or lower alkyltrimethylammonium and its salt is preferably 0.01 to 5% by mass, and more preferably 0.05 to 3% by mass.

  (A) agent mix | blends a higher alcohol. The higher alcohol refers to a monovalent higher alcohol having 6 or more carbon atoms. The higher alcohol is a concept including linear and branched higher alcohols. It is also a concept that includes saturated and unsaturated higher alcohols. One or more of these may be used. The same applies to the following specific examples.

  (A) As for the compounding quantity of the higher alcohol in an agent, 0.5 mass% or more is preferable, 0.5-5 mass% is more preferable, 0.5-3 mass% is still more preferable. When it is within the range of these preferable blending amounts, the advantages of improved hair dyeing power and improved foam quality can be obtained.

  Higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), 2-hexyl decanol, cetostearyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, aralkyl alcohol, 2-octyldodecanol, behenyl alcohol, decyltetradecane Examples thereof include knoll.

  (A) Agent uses together C20 or more higher alcohol and C18 or less higher alcohol.

  Aralkyl alcohol, behenyl alcohol, and decyltetradecanol can be exemplified as the higher alcohol of C20 or higher. Aralkyl alcohol and behenyl alcohol are preferable.

  The agent (A) contains a C20 or higher alcohol. The blending amount of the C20 or higher alcohol is preferably 0.1 to 3% by mass, and more preferably 0.1 to 1.5% by mass.

  Examples of the C18 or lower alcohol include lauryl alcohol, myristyl alcohol, cetanol, 2-hexyldecanol, cetostearyl alcohol, stearyl alcohol, isostearyl alcohol, and oleyl alcohol. Preferred are myristyl alcohol, cetanol, stearyl alcohol, and cetostearyl alcohol.

  (A) agent mix | blends C18 or less higher alcohol. 0.1-3 mass% is preferable and the compounding quantity of the said C18 or less higher alcohol has more preferable 0.1-1.5 mass%.

  In the agent (A), the mass ratio of the higher alcohol of C20 or higher to the total higher alcohol “higher alcohol of C20 or higher / higher alcohol” = 0.005 to 0.9 is preferable. More preferably, it is 0.01-0.9. More preferably, it is 0.1-0.8. “Total higher alcohol” includes C20 or higher alcohol content. If the higher alcohol blending ratio in the agent (A) is within these preferred ranges, the emulsion stability, hair dyeing power and foam quality will be good with good balance.

In the agent (A), the mass ratio of the nonionic surfactant to the higher alcohol is “nonionic surfactant / higher alcohol” = 1.5 to 50. When the ratio is less than 1.5, the emulsion stability and foam quality tend to be insufficient. On the other hand, when the ratio exceeds 50, the hair dyeing power and foam quality tend to be insufficient. The ratio is preferably 1.5 to 40, more preferably 1.5 to 30, and still more preferably 2 to 10.
. When the said ratio is in these preferable ranges, there exists an advantage that hair dyeing power, emulsification stability, and foam quality improve with sufficient balance.

  In the calculation of the mass ratio of the nonionic surfactant to the higher alcohol, the nonionic surfactant is preferably an ether type nonionic surfactant. On the other hand, the higher alcohol is preferably a linear higher alcohol.

  (A) An agent may mix | blend a solvent. Examples of the solvent include monovalent lower alcohols having 5 or less carbon atoms, such as ethanol, n-propanol, and isopropanol, polyols, and lower alkyl ethers thereof. Examples of polyols include glycerin, propylene glycol, dipropylene glycol, 1,3-butylene glycol, ethylene glycol, diethylene glycol, polyethylene glycol, isoprene glycol, sorbitol and the like. Examples of lower alkyl ethers of polyols include mono-lower alkyl ethers and poly-lower alkyl ethers (for example, di-lower alkyl ethers) of the aforementioned polyols.

  (A) It is preferable to set the compounding quantity of the solvent in an agent to 10 mass% or less, and it is more preferable to set it as 0.01-8 mass%. By setting it within these preferable ranges, the hair dyeing power is improved, and the agent (A) is easily emulsified.

The viscosity of the agent (A) is preferably 2000 mPa · s or less. More preferably, it is 1-2000 mPa * s, More preferably, it is 50-1500 mPa * s. There exists an advantage that the operativity at the time of application | coating improves by making a viscosity into the said preferable range.

  (A) The dosage form of an agent is an emulsion.

[Mixing of each agent]
The mixing ratio of a plurality of agents including the first agent and the second agent can be determined as appropriate. The mixing ratio of the first agent and the second agent is preferably first agent: second agent = 1: 5 to 5: 1. Moreover, it is preferable that pH of a mixture is 7-12.

[Propellant]
A well-known propellant can be used for the aerosol-type foam oxidation hair dye composition which this application discloses. For example, liquefied gas such as LPG and dimethyl ether, and compressed gas such as carbon dioxide gas and nitrogen gas can be exemplified. Among these, liquefied gas is preferable. These 1 type (s) or 2 or more types can be used.

  The agent (A) is an emulsion, and considering the manufacturing process, the agent (A) is an emulsion even at the stage of a stock solution not containing a propellant or after being filled with the propellant. That is, if it is an emulsion after filling with a propellant, it can be reasonably estimated that the stock solution corresponding to the agent (A) was also an emulsion.

  It is preferable that the mass ratio of each agent and the propellant constituting the aerosol-type foamy oxidative hair dye composition contained in the aerosol container is 90:10 to 98: 2.

[Aerosol container]
The aerosol-type foamy oxidative hair dye composition which this application discloses can be accommodated in a known aerosol container. Since it is necessary to mix the 1st agent which mix | blends an alkaline agent and the 2nd agent which mix | blends an oxidizing agent immediately before use, a 1st agent and a 2nd agent are normally accommodated separately. The first agent and the second agent may be accommodated in separate aerosol containers. When discharged by the force of the propellant, the propellant expands to form bubbles.

  For example, the aerosol container disclosed in Patent Document 3 can be used. The said aerosol container accommodates a 1st agent and a 2nd agent in a separate container, and discharges a foam-like oxidative hair dye composition from a head part. In the examples described later, this type of aerosol container is used.

  In addition, for example, an aerosol container in which two pouches and a connecting member are accommodated in one can and the mixture is discharged in a foam shape can be used. In an aerosol container having an inner bag, an aerosol container in which each agent and a propellant (for foaming) are accommodated in the inner bag and a propellant (for extrusion) is accommodated outside the inner bag can also be used.

  The material and internal pressure of the aerosol container can be appropriately determined according to the type of the alkaline agent, the oxidizing agent, the propellant, and the method for containing the aerosol foamed hair dye composition.

  As described above, the present application also discloses an aerosol foamed hair dye composition, and a product including a propellant and an aerosol container.

  Examples will be described below. The technical scope of the aerosol type foamy hair dye composition disclosed in the present application is not limited to the following examples. The evaluation results are shown in Tables 1 to 4 and 7.

<Preparation of aerosol type foam hair dye composition>
[Examples 1 to 33]
By blending the components shown in Tables 1 to 4 and 6, the stock solutions for the first agent of Examples 1 to 33 were prepared as emulsions. Moreover, the stock solution for 2nd agents of Examples 1-33 was prepared as an emulsion by mix | blending each component shown by Table 5 and 7. FIG. Examples 1-32 use the stock solution for the first agent shown in Tables 1 to 4 and the stock solution for the second agent shown in Table 5. Example 33 uses the stock solution for the first agent shown in Table 6 and the stock solution for the second agent shown in Table 7. In addition, the unit of the numerical value which shows the compounding quantity of Tables 1-7 is the mass%. In addition, the remaining amount of purified water in the examples means the remaining amount of the first agent stock solution and the second agent stock solution in each example as 100% by mass.

  Furthermore, the first agent stock solution and the second agent stock solution of each Example were filled into an aerosol container equipped with a simultaneous mixing and discharging mechanism, and each was filled with a propellant (LPG) at a mass ratio shown in Tables 1-7. Thus, the first agent and the second agent of each example were prepared.

  The 1st agent and 2nd agent of each Example were discharged from this aerosol container, and the aerosol type foamy oxidation hair dye composition of Examples 1-33 was obtained.

  In addition, the 1st agent and 2nd agent of each Example are emulsions.

[Comparative Examples 1-5]
Moreover, the stock solution for 1st agents of Comparative Examples 1-5 was prepared by mix | blending each component shown by Table 4. FIG. Although the stock solutions for the first agent of Comparative Examples 2 to 5 could be prepared as emulsions, the stock solutions for the first agent of Comparative Example 1 could not be prepared as emulsions. Moreover, the stock solution for 2nd agents of Comparative Examples 1-5 was prepared by mix | blending each component shown by Table 5. FIG. In addition, the unit of the numerical value which shows the compounding quantity of Table 4 and 5 is the mass%. In addition, the remaining amount of purified water in the comparative examples means the remaining amount of the first agent stock solution and the second agent stock solution in each comparative example as 100% by mass, respectively.

  Further, the first agent stock solution and the second agent stock solution of Comparative Examples 2 to 5 are filled in an aerosol container equipped with a simultaneous mixing and discharging mechanism, and the propellant (LPG) is added at a mass ratio shown in Tables 4 and 5, respectively. Filled to prepare the first and second agents of Comparative Examples 2-5.

  The first agent and the second agent of each comparative example were discharged from this aerosol container to obtain aerosol type foamy oxidative hair dye compositions of comparative examples 2-5.

  In addition, the 1st agent and the 2nd agent of Comparative Examples 2-5 are emulsions. The first agent of Comparative Example 1 could not be an emulsion, and Comparative Example 1 could not be evaluated in the following tests other than viscosity measurement.

(Emulsion stability test)
Test method: The stock solutions for the first agent of Examples 1 to 32 and Comparative Examples 2 to 5 of each example and the stock solution for the second agent of Example 33 were stored in a thermostatic bath at 60 ° C.

Evaluation method: It was confirmed by visual inspection whether or not the emulsion was separated, and the number of days required until the emulsion was separated.
Evaluation criteria: “5” if the number of days until separation is 1 week or more, “4” if it is 3 days or more and less than 1 week, or “4” if it is 1 day or more and less than 3 days Was evaluated as “2” when it was 12 hours or more and less than 1 day, and “1” when it was less than 12 hours.

  The above test is an accelerated test. Therefore, if the result of the acceleration test is good, it is reasonably estimated that a good effect can be obtained even when each agent filled with the stock solution for each agent and the propellant is stored in an aerosol container at room temperature.

(Hair dyeing treatment)
Each composition of Examples 1 to 33 and Comparative Examples 2 to 5 was discharged from the aerosol container in an amount of 1.5 g, and applied to 1 g of a white hair bundle (hereinafter simply referred to as “hair bundle”) by hand. Then, the hair bundle was left in a constant temperature bath (30 ° C.) for 30 minutes. Next, the composition adhering to the hair bundle was washed with water, and then the hair bundle was treated once with shampoo and rinse (conditioner). Subsequently, the hair bundle was dried with warm air. In this way, the hair bundle was subjected to a hair dyeing treatment using the composition.

(Hair coloring test)
The panelist observed the hair bundle after the hair dyeing process using each composition of Examples 1-33 and Comparative Examples 2-5 visually, and evaluated hair dyeing power (sensory evaluation). Specifically, "5" indicates that the hair coloring power is excellent, "4" indicates that the hair coloring power is somewhat superior, and 3 indicates that the hair coloring power is normal. ”,“ Slightly inferior hair dyeing ”is“ 2 ”, and“ Inferior hair dyeing ”is“ 1 ”. The average score of the evaluations of the 10 panelists for each evaluation target thus obtained was calculated, and when there was a numerical value below the decimal point, the evaluation was determined by rounding off. The evaluation results are shown in Tables 1 to 4 and 7.

(Foam quality test)
3 g of the 1st agent of Examples 1-32 and Comparative Examples 2-5 and the 2nd agent of Example 33 were discharged from the said aerosol container on the flat board on 25 degreeC conditions. The ejected matter was stretched with a finger to evaluate the fineness of the foam (fine foam that is not coarse is evaluated as good). The evaluation criteria are as follows.
5: 7 or more people who answered “Excellent” out of 10 panelists 4: 5-6 people who answered “Excellent” out of 10 panelists 3: 3 people who answered “Excellent” out of 10 panelists -4 people 2: 2 people who answered "Excellent" out of 10 panelists 1: Less than 1 people who answered "Excellent" out of 10 panelists

  Hereinafter, the state of a bubble is demonstrated using the reference photographs 1-4. Reference Photo 1 is a fine-grained bubble. Reference Photo 2 is a coarse-grained foam that does not correspond to fine-grained foam. Reference photo 3 shows bubbles immediately after ejection in the test. The left side is a coarse-grained foam. The right side is a fine-grained bubble. Reference photo 4 is a photograph of bubbles after extending with a finger in the test. The left side is a coarse-grained foam. The right side is a fine-grained bubble.

[Reference Photo 1]

[Reference Photo 2]

[Reference Photo 3]

[Reference Photo 4]

  The second agent shown in Table 5 and the first agent shown in Table 6 were fine-grained bubbles.

(Foamability test)
3 g of each composition of Examples 1-33 and Comparative Examples 2-5 was discharged from the said aerosol container on the flat board on 25 degreeC conditions. Immediately after this discharge, 10 panelists evaluated the bulkiness (foaming property) of the bubbles visually (sensory evaluation).
Examples 1-33 exhibited good foaming power. In particular, Example 4 has many panelists evaluated as “bulky” compared to the other examples, and exhibited superior foaming properties. The table showing the results of this test was omitted.

(Viscosity measurement)
The viscosities of the stock solutions for the first agent of Examples 1 to 32 and Comparative Examples 1 to 5 and the stock solution for the second agent of Example 33 were measured using a B-type viscometer. 2. Measurement was performed under conditions of 12 rpm, 25 ° C., and 1 minute.

  The table description method will be explained. The brackets on the right side of the higher alcohol indicate the carbon number of the higher alcohol. The brackets following the nonionic surfactant POE indicate the polymerization number of the POE. In the table, the prescription (mass% notation) of the first agent or the second agent which is a stock solution and the ratio of the stock solution and the propellant are described, and the ratio of the stock solution and the propellant is a mass ratio. “Nonion SAA / higher OH” means the mass ratio of nonionic surfactant to higher alcohol. “C20 ↑ / all higher OH” means the mass ratio of C20 or higher alcohol to all higher alcohol. Monoethanolamine solution, ammonia water, and hydrogen peroxide water are% (w / w).

[Table 1]

[Table 2]

[Table 3]

[Table 4]

[Table 5]

[Table 6]

[Table 7]

  An aerosol foam oxidation hair dye composition excellent in stability, hair dyeing power and foam quality of an emulsion is provided.

Claims (3)

An aerosol foam oxidation hair dye composition comprising a plurality of agents discharged and mixed at the time of use, the composition comprising an agent satisfying the following condition (A).
(A) An emulsion, comprising a nonionic surfactant, a C20 or higher alcohol, and a C18 or higher alcohol, and the mass ratio of the nonionic surfactant to the higher alcohol is Ionic surfactant / higher alcohol = 1.5-50. The aerosol-type foamy oxidative hair dye composition according to claim 1, wherein the agent satisfying the condition (A) has a viscosity of 2000 mPa · s or less. The aerosol foam oxidation according to claim 1 or 2, wherein the agent satisfying the condition (A) further has a mass ratio of C20 or higher alcohol to all higher alcohols of 0.005 to 0.9. Hair dye composition.