JP2013189382A - Two-part hair dye - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nonaerosol-type two-part foamy hair dye not only having characteristics peculiar to such a hair dye but also having favorable touch feeling after hair dyeing treatment even if an anionic surfactant is blended therein, high adhesiveness to the hair of foams after the hair is coated and massaged with the foams, and high storage stability despite using a combination of a cationic polymer and fatty acid or its salt.SOLUTION: A two-part hair dye comprises: a first agent containing an alkali agent; and a second agent containing hydrogen peroxide. This hair dye is packed in a nonaerosol foamer vessel for foamily jetting a mixed liquid of the first and second agents. In this hair dye, the mixed liquid contains (A) a 14-21C branched or straight-chain saturated or unsaturated fatty acid or its salt or a mixture thereof; and (B) a cationic polymer, wherein the mass ratio of the content of the component (B) to that of the component (A) on a fatty acid basis in the mixed liquid [(B)/(A)] is 5-15.

Description

  The present invention relates to a non-aerosol two-component foam hair dye.

  Conventionally, as hair dye compositions, liquid or cream-like compositions have been widely used, but it is difficult to apply them uniformly to the hair. In particular, in order for consumers themselves to apply to the root and back of their own hair, they need to master skills such as blocking and mirrors, and careful operation to apply evenly.

  Therefore, it has been proposed to simplify the hair dyeing operation by discharging the agent in the form of a foam. For example, a two-agent aerosol type or a one-agent non-aerosol type is known. However, in the two-agent aerosol type, the mixing ratio of the first agent and the second agent is not constant, and decoloration unevenness and dyeing unevenness are likely to occur. Metal pressure-resistant containers are oxidized and corroded by hydrogen peroxide. However, there is a problem that the internal pressure of the pressure vessel excessively increases due to the decomposition of hydrogen peroxide. In addition, the one-agent non-aerosol type has no decolorizing ability or weakness, so it is difficult to increase the color change obtained by a single treatment. There is a problem that the hair dyeing operation tends to be complicated.

  On the other hand, what discharges a 2 agent type hair dye composition from a non-aerosol-type former container in foam shape is proposed (refer patent documents 1 and 2). These products are less likely to cause variations in the mixing ratio compared to conventional two-component aerosol types by discharging the liquid mixture of the first agent and the second agent from the former container in the form of foam. Compared with the conventional one-component non-aerosol type, sufficient decoloring power or hair coloring power can be obtained.

  In these non-aerosol type two-component foam hair dyes, it has been shown that by adding a carboxylic acid-based anionic surfactant, the coating property to hair is excellent (Patent Document 3). However, foam hair dyes may be squeezed for the purpose of fixing the agent to the site of concern or root after application to the hair, but in the examination of these conventional foam hair dyes, Little consideration has been given to the behavior of the foam after squeezing after application to the hair. When the foam is squeezed for such a purpose, it is desirable that the foam has such a viscosity that it can be fixed to the root or the part to be worried about.

  Moreover, when an anionic surfactant is blended with the hair dye, the feel of the hair after the hair dyeing treatment often deteriorates. On the other hand, it has also been proposed to add a cationic polymer or a cationic surfactant for the purpose of reducing deterioration in touch after hair treatment (Patent Document 4, etc.), but when these components are used in combination with a fatty acid or a fatty acid salt. Precipitation and turbidity are likely to occur, making it difficult to provide a stable formulation.

JP 2004-339216 A JP 2006-124279 A JP 2009-120601 A JP 2007-291016 JP

  The present invention allows dyeing even when (i) an anionic surfactant is blended, while taking advantage of the unique characteristics of the non-aerosol two-component foam hair dye such as excellent hair dyeing properties in Patent Documents 1 to 4. Excellent feel after using hair treatment, (ii) Excellent adhesion to foam after applying foam on hair and swallowing, (iii) Combined use of cationic polymer and fatty acid or salt thereof However, it is an object of the present invention to provide a non-aerosol two-component foamy hair dye which has good storage stability despite being used.

  The present inventors include a specific chain length fatty acid or salt thereof and a cationic polymer in a specific ratio in a mixed solution of the first agent and the second agent in the non-aerosol type two-component hair dye. Thus, it has been found that the above-mentioned purpose can be achieved.

The present invention has a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a non-aerosol foamer container for discharging a mixture of the first agent and the second agent in the form of foam. ,
The following components (A) and (B) in the mixture:
(A) A branched or straight chain saturated or unsaturated fatty acid having 14 to 21 carbon atoms or a salt thereof, or a mixture thereof
(B) contains a cationic polymer,
Provided is a two-component hair dye, wherein the mass ratio [(B) / (A)] of the content of component (B) to the content of component (A) as a fatty acid in the mixture is 5 to 15 It is.

  The two-component hair dye of the present invention is excellent in feel after the hair dyeing treatment even when an anionic surfactant is blended, and the foam adheres to the hair after the foam is applied and rubbed into the hair. The storage stability is good despite the combination of a cationic polymer and a fatty acid or salt thereof.

[Alkaline agent]
The first agent contains an alkali agent. Alkaline agents such as ammonia and salts thereof; alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol and 2-aminobutanol and salts thereof; alkanediamines such as 1,3-propanediamine and the like Salts: carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and the like. These alkaline agents may be used in combination of two or more, and the content thereof is that of the first agent and the second agent from the viewpoint of sufficient hair dyeing effect and reduction of hair damage and scalp irritation. 0.05-15 mass% in a liquid mixture is preferable, Furthermore, 0.1-10 mass%, Furthermore, 0.2-5 mass% is preferable.

〔hydrogen peroxide〕
The second agent contains hydrogen peroxide. The content of hydrogen peroxide in the second agent is preferably 1 to 9% by mass, more preferably 3 to 6% by mass. The content of hydrogen peroxide in the mixed solution of the first agent and the second agent is 1 -6 mass%, Furthermore, 2-5 mass% is preferable. The pH of the second agent is preferably 2 to 6, and more preferably 2.5 to 4 in order to suppress the decomposition of hydrogen peroxide.

[(A): Fatty acid or its salt]
The two-component hair dye of the present invention comprises a branched or linear saturated or unsaturated fatty acid having 14 to 21 carbon atoms or a salt thereof as a component (A) in a mixed solution of the first agent and the second agent, Alternatively, a mixture thereof is contained.

Component (A) is preferably a fatty acid represented by the following general formula (1) or a salt thereof.
R ¹ COOM (1)
[Wherein, R ¹ represents a branched or straight-chain saturated or unsaturated hydrocarbon group having 14 to 21 carbon atoms, and M represents hydrogen, sodium or potassium]

Here, the hydrocarbon group of R ¹ preferably has 14 to 20 carbon atoms, and more preferably 14 to 18 carbon atoms, from the viewpoint of preventing dripping of the applied foam. From the same viewpoint, it is preferably a straight chain and unsaturated hydrocarbon group.

  Two or more components (A) can be used in combination, and can be contained in one or both of the first agent and the second agent. The content of the component (A) as a fatty acid in the mixed solution of the first agent and the second agent (in the case of a fatty acid salt, the amount of fatty acid converted) From the viewpoint of improving the adhesion of the foam to the hair after squeezing and applying, it is preferably 0.01 to 5% by mass, more preferably 0.01 to 4% by mass, furthermore 0.01 to 3% by mass, 0.01-2 mass% is preferable.

[(B): Cationic polymer]
The two-component hair dye of the present invention contains a cationic polymer as a component (B) in the mixed solution of the first agent and the second agent.

  Component (B) includes dimethyldiallylammonium chloride / acrylic acid copolymer, dimethyldiallylammonium chloride / acrylamide copolymer, dimethyldiallylammonium chloride / copolymer such as dimethyldiallylammonium chloride / acrylamide / acrylic acid copolymer, etc. Is mentioned.

  A dimethyldiallylammonium salt copolymer is obtained by polymerizing a monomer component containing 40% by mass or more of dimethyldiallylammonium chloride monomer in all monomers from the viewpoint of improving hair gloss, texture and fingering. What is obtained is preferable, and the content is preferably 60% by mass or more, more preferably 70% by mass or more, further preferably 80% by mass or more, and further preferably 90% by mass or more. The content of acrylic acid and / or acrylamide is preferably less than 60% by mass, less than 40% by mass, further less than 30% by mass, further less than 20% by mass, and even less than 10% by mass. More preferred.

  The weight average molecular weight of the dimethyldiallylammonium salt-based copolymer is 300,000 to 8 million, more preferably 300,000 to 3 million, moreover, from the viewpoint of adsorbing to the hair and making it difficult to fall off during washing and rinsing. It is preferable that it is 400,000-3 million. Here, the weight average molecular weight is measured by gel filtration chromatography (in terms of polyethylene glycol).

The dimethyldiallylammonium chloride / acrylic acid copolymer is INCI name polyquaternium-22, and examples of commercially available products include Marquat 280 and Marquat 295 (above, Nalco).
The dimethyldiallylammonium chloride / acrylamide copolymer is INCI name polyquaternium-7, and examples of commercially available products include Marquat 550 (Nalco).
The dimethyldiallylammonium chloride / acrylamide / acrylic acid copolymer is INCI name polyquaternium-39, and examples of commercially available products include Marquat Plus 3330 and Marquat Plus 3331 (Nalco).

  Two or more components (B) can be used in combination, and can be contained in either one or both of the first agent and the second agent. The content of the component (B) in the mixed solution of the first agent and the second agent is 0.01 to 3% by mass from the viewpoint of preventing the applied foam from sagging and improving the feel after the hair dyeing treatment. Furthermore, 0.01 to 1% by mass, more preferably 0.01 to 0.5% by mass is preferable.

  In addition, from the viewpoint of preventing dripping of the applied foam, and from the viewpoint of storage stability, the mass ratio of the content of the component (B) to the content of the component (A) as a fatty acid [(B) / (A)] is 5 to 15, more preferably 5.1 to 14, and further preferably 5.3 to 13.

[Cationic surfactant]
The two-component hair dye of the present invention can contain a cationic surfactant in one or both of the first agent and the second agent. Examples of the cationic surfactant include alkylpyridinium salts and alkylammonium salts. It is preferable to use an alkylammonium salt represented by the following general formula (2).

[Wherein, R ² , R ³ , R ⁴ and R ⁵ independently represent a hydrocarbon group which may have a substituent, and one of R ² , R ³ , R ⁴ and R ⁵ or Two have 8 to 36 carbon atoms, and the remainder has 1 to 7 carbon atoms. X ⁻ represents an anion. ]

  Examples of the hydrocarbon group include a linear or branched alkyl group, a linear or branched alkenyl group, an aryl group, and an aralkyl group. Examples of the substituent include a hydroxy group, an alkoxy group, an aryloxy group, Examples include an epoxy group, an amino group, a mono- or dialkylamino group, a trialkylammonium group, a fatty acid amide group, and a fatty acid ester group.

One or two (preferably one) of R ² , R ³ , R ⁴ and R ⁵ is a straight chain or branched chain having 8 to 30 carbon atoms, more preferably 10 to 24 carbon atoms, and even more carbon atoms. It is preferably an alkyl group having 12 to 18 carbon atoms, and the remainder is preferably an alkyl group having 1 to 3 carbon atoms, further 1 or 2 carbon atoms, and further 1 carbon atom.

Examples of the counter anion (X ⁻ ) include chloride ion, bromide ion, iodide ion, methyl sulfate ion, ethyl sulfate ion, acetate ion, phosphate ion, sulfate ion, and lactate ion. From the viewpoint of properties, chloride ions and bromide ions are preferred.

  Specific examples of the cationic surfactant include monoalkyltrimethylammonium salt and dialkyldimethylammonium salt. More specifically, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, isostearyltrimethylammonium chloride, lauryltrimethylammonium chloride, Behenyltrimethylammonium chloride, cocoyltrimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, lauryltrimethylammonium bromide, isostearyllauryldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dicocoyl chloride Examples thereof include dimethylammonium.

  Two or more cationic surfactants can be used in combination, and can be contained in one or both of the first agent and the second agent. The content of the cationic surfactant in the mixed solution of the first agent and the second agent is preferably 0.05 to 5% by mass, more preferably 0.2 to 4% by mass, from the viewpoint of good foaming and coatability of the hair dye. Furthermore, 0.4-3 mass% is preferable.

[Nonionic surfactant]
The two-component hair dye of the present invention can further contain a nonionic surfactant in one or both of the first agent and the second agent. Nonionic surfactants include polyoxyalkylene alkyl ethers, alkyl alkanolamides, polyoxyalkylene alkyl amines, alkyl polyglucosides, alkyl glyceryl ethers, and the like.

As the polyoxyalkylene alkyl ether, those represented by the following general formula (3) can be used.
R ⁶ —O— (AO) _n —H (3)
[In the formula, R ⁶ represents a linear or branched saturated or unsaturated hydrocarbon group having 8 to 22 carbon atoms, A represents an alkylene group having 2 to 4 carbon atoms, and n represents an average value of 1 to 1. Indicates a number of 100. ]

The number of carbon atoms in R ⁶ is preferably 10 to 22, more preferably 12 to 20, and further preferably 12 to 18 from the viewpoint of foaming of the hair dye and the solubility of the dye contained in the hair dye.
As A, an ethylene group and a propylene group are preferable, and an ethylene group is more preferable.
n is preferably 1 to 40, more preferably 2 to 30, and further preferably 4 to 23.

  Specific examples of the polyoxyalkylene alkyl ether include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether and the like.

  As the alkyl alkanolamide, those represented by the following general formula (4) can be used.

[Wherein, R ⁷ represents a linear or branched saturated or unsaturated hydrocarbon group having 5 to 23 carbon atoms, and R ⁸ and R ⁹ are each independently a hydrogen atom or an alkanol group having 1 to 4 carbon atoms. Indicates. However, the case where R ⁸ and R ⁹ are hydrogen atoms at the same time is excluded. ]

The carbon number of R ⁷ is preferably 8 to 22, more preferably 10 to 20, and further preferably 12 to 18 from the viewpoint of foaming of the hair dye and the solubility of the dye contained in the hair dye.

  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 polyoxyalkylene alkylamine, those represented by the following general formula (5) can be used.

[Wherein, R ¹⁰ represents a linear or branched saturated or unsaturated hydrocarbon group having 5 to 23 carbon atoms, A ¹ and A ² each independently represent an ethylene group or a propylene group, p and q is an average value, respectively, and the total of both is 5-50. ]

From the viewpoint of foaming of the hair dye and solubility of the dye contained in the hair dye, the carbon number of R ¹⁰ is preferably 8 to 22, more preferably 10 to 20, and further preferably 12 to 18. A ¹ and A ² are preferably ethylene groups. The total of p and q is preferably 8-30, and more preferably 10-20.

  Specific examples of the polyoxyalkylene alkylamine include polyoxyethylene laurylamine, polyoxyethylene cetylamine, polyoxyethylene cocamine and the like.

  As the alkylpolyglucoside, 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 having a degree of condensation of glucoside units of 1 to 7 are more preferable.

  As the alkyl glyceryl ether, an alkyl group having 8 to 20 carbon atoms, more preferably 14 to 18 carbon atoms, and a branched alkyl group are preferable. Specific examples include isostearyl glyceryl ether and isostearyl pentaerythryl glyceryl ether.

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

  Two or more nonionic surfactants can be used in combination. The content of the nonionic surfactant in the mixed solution of the first agent and the second agent is preferably 1 to 35% by mass, more preferably 1.5 to 30% by mass, and further 2 to 2% from the viewpoint of adequate foam retention. 25 mass%, Furthermore, 5-20 mass% is preferable. The content of the nonionic surfactant in the first agent is preferably 1 to 30% by mass, more preferably 1.5 to 25% by mass, and further preferably 5 to 20% by mass, from the viewpoint of good solubility of the dye. .

  In addition, from the viewpoint of coatability of the hair dye and foaminess, the mass ratio of the nonionic surfactant to the cationic surfactant in the mixture (nonionic surfactant content / cationic surfactant content) Is preferably 2 to 50, more preferably 3 to 30, further preferably 5 to 20, and further preferably 7 to 12.

[Anionic surfactant]
The two-component hair dye of the present invention can further contain an anionic surfactant in one or both of the first agent and the second agent. In the present invention, the anionic surfactant means an anionic surfactant other than the fatty acid salt.

  Anionic surfactants include sulfate surfactants such as alkyl sulfates and alkyl ether sulfates; carboxylic acid surfactants such as alkyl succinates and alkenyl succinate salts; alkyl phosphates and alkyl ether phosphates Phosphate surfactants such as sulfosuccinates, isethionates, taurates, sulfonic acid surfactants such as alkylbenzene sulfonic acids, α-olefin sulfonic acids, alkane sulfonic acids; amino acid derivatives such as N-acyl glutamates Type surfactants and the like. Among these, amino acid derivative type surfactants such as N-acyl glutamate are preferable from the viewpoint of storage stability.

  The content of the anionic surfactant in the mixed solution of the first agent and the second agent is preferably 0.01 to 20% by mass, more preferably 0.01 to 15 from the viewpoint of improving foaming and touch after hair dyeing. % By mass, more preferably 0.1 to 10% by mass.

[Amphoteric surfactant]
The two-component hair dye of the present invention can further contain an amphoteric surfactant in one or both of the first agent and the second agent.

  Amphoteric surfactants include carbobetaines, amidebetaines, sulfobetaines, hydroxysulfobetaines, amidesulfobetaines, phosphobetaines, imidazo having 8 to 24 carbon atoms, alkyl groups, alkenyl groups or acyl groups. Examples thereof include linium-based and amine oxide-based surfactants, among which carbobetaine-based surfactants and sulfobetaine-based surfactants are preferable. Preferred amphoteric surfactants include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryldimethylaminoacetic acid betaine, lauryl hydroxysulfobetaine and the like.

  The content of the amphoteric surfactant in the mixed solution of the first agent and the second agent is preferably 0.01 to 20% by mass, more preferably 0.01 to 15% by mass, and further 0.1 to 10% by mass from the viewpoint of good foaming. % Is preferred.

[Polymer type surfactant]
The two-component hair dye of the present invention can further contain a polymeric surfactant in one or both of the first agent and the second agent.

  Examples of polymeric surfactants include copolymers of (meth) acrylic acid and (meth) acrylic acid alkyl esters, (meth) acrylic acid, (meth) acrylic acid alkyl, and (meth) acrylic acid polyoxy (Meth) acrylic polymers such as ethylene alkyl ether copolymers (for example, Pemulen TR-1 and Pemlen TR-2 manufactured by Lubrizol Advanced Materials, Inc., Acrine 22 and Aculin 33 manufactured by Dow Chemical Co., Ltd.).

  The content of the polymeric surfactant in the mixed solution of the first agent and the second agent is preferably 0.01 to 15% by mass, and more preferably 0.01 to 10% by mass from the viewpoint of stabilizing the foam of the discharged mixed solution. %, More preferably 0.05 to 7% by mass, further preferably 0.1 to 5% by mass.

  The total content of the surfactant as a whole in the mixed solution of the first agent and the second agent is preferably 10.5 to 30% by mass, more preferably 11.5 to 25% by mass, and further preferably 12 to 20% by mass.

[Ethanol and / or propanol]
The two-component hair dye of the present invention can contain ethanol and / or propanol in the mixed solution of the first agent and the second agent. As propanol, n-propanol and / or isopropanol can be used.

  Ethanol and / or propanol can be used in combination, and can be contained in one or both of the first agent and the second agent. From the viewpoint of dyeability, the content of ethanol and / or propanol in the mixed solution of the first agent and the second agent is preferably 0.1 to 20% by mass, more preferably 0.5 to 18% by mass, and further 1 to 15 mass%, Furthermore, 2-10 mass%, Furthermore, 3-7 mass% is preferable.

[Non-volatile hydrophilic solvent]
The two-component hair dye of the present invention can contain a nonvolatile hydrophilic solvent in the first agent or the second agent. This reduces irritation to the scalp due to evaporation of water from the liquid mixture and concentration of irritating components such as hydrogen peroxide while the foam of the liquid mixture is applied to the hair and left standing. be able to. As the non-volatile hydrophilic solvent, polyols and lower (C1-4) alkyl ethers thereof are preferable. As the polyols, those having 2 to 6 carbon atoms are preferable, for example, glycerin, diglycerin, propylene glycol, dipropylene glycol, 1,3-butanediol, ethylene glycol, diethylene glycol, isoprene glycol, weight average molecular weight 200 to 800. Polypropylene glycol, sorbitol and the like. Examples of the lower alkyl ethers of the polyol include mono-lower alkyl ethers and poly-lower alkyl ethers (for example, di-lower alkyl ethers) of the aforementioned polyols. Of these, monomethyl ether or monoethyl ether of polyol is preferable, and specific examples include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, and the like. These can also use 2 or more types together.

  Two or more kinds of nonvolatile hydrophilic solvents can be used in combination, and can be contained in one or both of the first agent and the second agent. The content of the component non-volatile hydrophilic solvent in the mixed solution of the first agent and the second agent is preferably 0.01 to 8% by mass, more preferably 0.05 to 5% by mass, and further 0.1% from the viewpoint of suppressing scalp irritation. -4% by mass, more preferably 0.5-3% by mass.

  The two-component hair dye of the present invention comprises a mass ratio of non-volatile hydrophilic solvent to ethanol and / or propanol (non-volatile hydrophilic solvent / ethanol and / or propanol) in the mixed liquid of the first agent and the second agent. ) Is preferably less than 0.1, more preferably less than 1 and even more preferably less than 0.8 from the viewpoint of storage stability. The lower limit of this mass ratio is not particularly limited, but is preferably 0.1 or more.

〔dye〕
The two-component hair dye of the present invention contains an oxidation dye intermediate or a direct dye in the first agent.

(Oxidized dye intermediate)
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, N-phenylparaphenylenediamine, N, N-bis (hydroxyethyl) paraphenylenediamine, 2-hydroxyethylparaphenylenediamine, paraaminophenol, and paramethyl. Examples include aminophenol, 4-amino-methcresol, orthoaminophenol, and salts thereof.

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

  Two or more precursors and couplers may be used in combination, and the content of each of the precursor and the coupler is 0.01 to 5% by mass, and further 0.1 to 4% by mass in the mixed solution of the first agent and the second agent. preferable.

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

  Two or more direct dyes may be used in combination, or may be used in combination with an oxidation dye intermediate. Moreover, the content is 0.001-5 mass% in the liquid mixture of a 1st agent and a 2nd agent, Furthermore, 0.01-3 mass% is preferable.

(Oil agent)
The two-component hair dye of the present invention can further contain an oil from the viewpoint of stabilizing the foam of the liquid mixture to be discharged. Such oils include hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffin, cycloparaffin; glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; beeswax, whale wax, lanolin, Waxes such as carnauba wax; isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononyl isononanoate, tridecyl isononanoate Esters such as; myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, 2-octyldodecanol, cetostearyl alcohol and other higher alcohols; Examples include stearyl glyceryl ether and polyoxypropylene butyl ether. Of these, higher alcohols are preferable, and myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, and 2-octyldodecanol are more preferable.

  The content of the oil agent in the mixed solution of the first agent and the second agent is preferably 0.01 to 3% by mass, more preferably 0.03 to 2.5% by mass, and further preferably 0.05 to 2% by mass.

[Silicones]
The two-component hair dye of the present invention preferably contains no silicone in the mixed solution of the first agent and the second agent from the viewpoint of maintaining the discharged foam for a long time. In order to apply it smoothly and to give a high conditioning effect to the hair, silicones can be further contained within a certain range. Examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, amino-modified silicone, oxazoline-modified silicone elastomer, and the like, and emulsions in which these are dispersed in water using a surfactant. Of these, polyether-modified silicones, amino-modified silicones, and emulsions thereof are preferable because they can be stably dispersed in water without using a thickener.

  The polyether-modified silicone includes terminal-modified and side-chain-modified types such as a pendant type (comb type), a both-end modified type, and a one-end modified type. Examples of such modified silicones include dimethylsiloxane / methyl (polyoxyethylene) siloxane copolymer, dimethylsiloxane / methyl (polyoxypropylene) siloxane copolymer, dimethylsiloxane / methyl (polyoxyethylene / polyoxypropylene) siloxane. A copolymer etc. are mentioned. As the polyether-modified silicone, those having HLB of 10 or more and more preferably HLB of 10 to 18 are preferable from the viewpoint of compatibility with water. Here, HLB is based on the value obtained from the cloud number (cloud number: an index correlated with HLB and applied to ether type nonionic surfactants).

  Any amino-modified silicone may be used as long as it has an amino group or an ammonium group, and amodimethicone is preferable.

  When silicones are added to the mixture of the first agent and the second agent, the content of silicones allows the foam to blend smoothly into the hair without disturbing the foaming of the hair dye, and the hair is highly conditioned. In order to impart an effect, the content is preferably 2% by mass or less, more preferably 0.005 to 1.5% by mass, and further preferably 0.01 to 1% by mass.

[Other optional ingredients]
In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the two-component hair dye of the present invention. Such optional ingredients include animal and vegetable oils and fats, natural or synthetic polymers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, herbal extracts , Vitamins, fragrances, ultraviolet absorbers and the like.

  In the two-component hair dye of the present invention, the mixing ratio of the first agent containing an alkali agent and the second agent containing hydrogen peroxide is 1: 4 to 4: 1 by mass ratio. Preferably, 1: 2 to 1: 1 is more preferable.

[PH]
The pH of the two-component hair dye of the present invention (25 ° C.) is 8 to 12, more preferably 9 to 11, and more preferably 9 to 9 at the time of use (during mixing) from the viewpoint of hair dyeing effect and skin irritation. 10.5 is preferred. As the pH adjuster, in addition to the above alkaline agents, inorganic acids such as hydrochloric acid and phosphoric acid; organic acids such as citric acid, glycolic acid and lactic acid; phosphorus such as dipotassium dihydrogen phosphate and disodium monohydrogen phosphate Examples include acid salts.

〔viscosity〕
The preferable viscosity range of the mixed solution of the first agent and the second agent is 1 to 300 mPa · s, preferably 5 to 200 mPa · s, and more preferably 10 to 100 mPa · s. The viscosity here is 25 ° C., a B-type rotational viscometer, using rotor No. 1, the rotational speed is 60 rpm when the measurement object is 100 mPa · s or less, 30 rpm when 100 to 200 mPa · s, In case of 200mPa · s or more, measure at 12rpm. The measurement is performed in order from the measurement with the largest number of revolutions, and the measurement is completed at the time when the measurement can be performed without shaking the display, and the measurement with the smaller number of revolutions after that is not performed.

  By adjusting the viscosity of the liquid mixture of the first agent and the second agent to be in the above range, it is possible to achieve a foam volume that is easy to apply and to prevent dripping after the liquid mixture is applied to the hair. can do. Moreover, it becomes easy to squeeze when discharging bubbles with a squeeze foamer, and it becomes easy to pump when discharging bubbles with a pump former. In order to adjust the viscosity of the mixed solution to the above-described range, the addition of a water-soluble solvent or the content and type of a surfactant, polyol, higher alcohol, etc. may be adjusted as appropriate.

[Gas-liquid mixture ratio]
The gas-liquid mixing ratio of the air and the mixed liquid by the foam discharge means of the former container is preferably 5 to 40 mL / g, more preferably 8 to 30 mL / g from the viewpoint of ease of application of the agent to the hair and ease of application. preferable. In addition, the gas-liquid mixing ratio here is a value measured as follows.

  First, the gas-liquid mixing ratio is determined by measuring the mass and volume of bubbles discharged at 25 ° C. Put 100g of the liquid mixture into a squeeze foamer container (Daiwa Seisakusha, volume 210mL, mesh roughness (mesh) is 150 mesh per mixing chamber (150 mesh per inch (25.4mm)), tip 200 mesh) From the time when the remaining amount is 80 g, 20 g of foam is discharged into a 1000 mL measuring cylinder and the volume of the foam is measured 1 minute after the start of discharge. The gas-liquid mixing ratio (mL / g) is obtained by dividing the volume (mL) of the discharged foam by the mass of 20 g.

[Former container]
In the present invention, the former container is a non-aerosol type container, and is used for mixing the liquid mixture of the first agent and the second agent with air without using a propellant and discharging it in the form of foam. . By using the former container, it is possible to obtain the effect that the discharged agent can be prevented from scattering and the effect that the foam in which the first agent and the second agent are uniformly mixed can be discharged. In particular, a non-aerosol type container can manufacture a product at a lower cost than an aerosol type container and does not require a high-pressure gas propellant. Therefore, the product can be handled more safely in distribution.

  As the former container, a known pump former container having a foam discharge means, a squeeze foamer container, an electric frother, a pressure accumulating pump former container or the like can be used. More specifically, for example, food and containers (vol. 35, No. 10, p588 to 593 (1994); vol. 35, No. 11, p624 to 627 (1994); vol. 36, No. 3, p154 ~ 158 (1995)) Pump former E3 type, F2 type (above, Daiwa Steel Co., Ltd.), squeeze foamer (Daiwa Steel Co., Ltd.), electric whisk (Matsushita Electric Works), air spray for Mar (Air Spray International). As the former container used in the two-component hair dye of the present invention, a pump former container and a squeeze foamer container are preferable because they are inexpensive and easy to use.

  A pump former container or a squeeze foamer container has a foam generating part such as a net, and when the mixed liquid of the first agent and the second agent is dried and solidified, clogging occurs. It is preferable to have a thin-walled net because the solidified material can be immediately dissolved by the flow of the bubbles to eliminate clogging. In this case, the mesh of the net is preferably 50 to 280 mesh, more preferably 90 to 250 mesh, and further preferably 130 to 220 mesh. Here, the mesh means the number of eyes per inch. By using a mesh net in this range, creamy foam can be generated. Moreover, as a material of such a mesh, nylon, polyester, etc. can be illustrated preferably.

  The former container used in the two-component hair dye of the present invention is provided with at least one, preferably a plurality of such nets, particularly two in terms of economy and foam stability. It is preferable to do.

  In the former container, the parts that come into contact with the contents (the inner wall of the container, the inner wall of the foam discharge means, etc.) are made of a material that does not corrode with alkali and hydrogen peroxide and is permeable to oxygen generated by the decomposition of hydrogen peroxide. It is preferable.

  As the product form of the two-component hair dye of the present invention consisting of the first agent, the second agent and the former container, the first agent or the second agent is filled in a container separate from the former container, The agent may be transferred to the former container and mixed, but one agent is filled into the former container, the other agent is filled into a separate container, and the other agent is transferred into the former container at the time of use. You may make it enter. In this case, the second agent is a gas permeable container, particularly an oxygen permeable material (for example, polyethylene) in order to prevent the pressure in the container from rising due to oxygen generated by the decomposition of hydrogen peroxide. It is preferable to fill a former container consisting of On the other hand, in order to prevent the oxidation of the oxidation dye, the first agent needs to use a container that does not easily transmit oxygen.

〔how to use〕
In order to dye hair (particularly hair) using the two-component hair dye of the present invention, it is preferable to comb the hair in advance. This makes it difficult for the hair to be entangled during the refoaming process described later, so there is no possibility that the mixed solution will scatter. Moreover, after combing hair, it is not necessary to perform the blocking operation generally used by application of a hair dye composition, and it is preferable not to perform blocking operation. Thereby, the operation which applies the hair dye composition mentioned later to hair, and the operation which foams again become easy. Next, the first agent and the second agent of the two-component hair dye of the present invention are mixed in a former container. The foam-like agent discharged from the container may be applied directly to the hair, or may be applied to the hair using a hand or a tool such as a brush. From the viewpoint of preventing the agent from splashing and dripping, it is more preferable to apply it to the hair after taking it once in a hand (with gloves).

  After application, leave for about 3 to 60 minutes, preferably about 5 to 45 minutes. At this time, it is preferable to foam again on the hair from the viewpoint of further preventing dripping during standing and allowing the mixed solution to sufficiently spread to the base of the hair. In order to foam again, gas may be injected, an instrument such as a vibrator or brush may be used, or a finger may be used, but it is more preferable to use a finger.

Here, the foaming time may be after the foam has completely disappeared, during the foam disappearance, or before the applied foam changes. Or it may be in the middle of application, even after it completes application to the whole range which wants to apply foam. Foaming again may be performed once continuously or may be repeated a plurality of times intermittently.

  After these operations, the mixture is washed away. Then, after shampooing and rinsing as appropriate, the hair is washed and dried.

Example 1 and Comparative Examples 1 to 4
The 1st agent of the compounding composition shown in Table 1 and the 2nd agent (common) of the compounding composition shown in Table 2 were prepared, and the liquid mixture of the 1st agent and the 2nd agent was evaluated by the following operation.

(1. Evaluation of viscosity change)
The first agent described in Table 1 and the second agent described in Table 2 were mixed at a mass ratio of 1: 1.5 to obtain an evaluation solution. Former container (Daiwa Steel Co., Ltd., volume 210mL, mesh roughness is 150 mesh mixing chamber, tip 200 mesh, the total opening area of the narrowest part of the air introduction path is 0.35mm ² , the inner diameter of the dip tube is φ1.7mm ), 10 g of the evaluation solution was discharged as foam into a 200 mL beaker, and the viscosity of the foam was measured with a helical viscometer (TVB-10R manufactured by Toki Sangyo Co., Ltd.) (TC bar, measured at 10 rpm for 1 minute). Then, after stirring for 2 minutes with a spoonful at a substantially constant speed, the viscosity was measured again. By comparing the viscosities immediately after discharge and after stirring, the viscosity behavior when swallowed on the hair was evaluated. If the viscosity is low enough not to sag immediately after ejection, it is judged that the foam can be spread over the entire hair, and if the viscosity increases greatly after stirring, it is judged that the foam is more difficult to sag after squeezing. The

  When myristic acid is blended, the viscosity increases by 10,000 mPa · s or more after stirring, which makes it very difficult to sag. On the other hand, in Comparative Example 2 in which myristic acid was not blended, it was shown that the increase in viscosity was slight. In Comparative Example 1, it was also shown that the viscosity was high immediately after ejection, so that it was inferior in terms of ease of spreading.

(2. Evaluation of combing force)
The first agent described in Table 1 and the second agent described in Table 2 were mixed at a mass ratio of 1: 1.5 to obtain an evaluation solution. In addition, human hair purchased from International Hair Importers & Products Inc. was used as an evaluation tress. About 8 g of hair root part was fixed to a plastic plate having a width of 7 cm with an adhesive so that the width of the hair bundle was 5.5 cm, thereby preparing an evaluation hair bundle. Former container (Daiwa Steel Co., Ltd., volume 210mL, mesh roughness is 150 mesh mixing chamber, tip 200 mesh, the total opening area of the narrowest part of the air introduction path is 0.35mm ² , the inner diameter of the dip tube is φ1.7mm From 8), 8 g of the evaluation liquid was discharged in the form of foam, and applied uniformly to the evaluation tress. After leaving the foam in a room at 25 ° C for 20 minutes, it was rinsed with warm water at 40 ° C for 15 seconds. The wet hair bundle was combed four times. This was hung on a hook of a combing force measuring device, and the force applied during combing was measured with the hair bundle sufficiently wetted with 20 mL of ion exchange water. Combing was performed 21 times and the first data was rejected. The brush moving speed was 19 cm / sec. It was judged that the smaller the force applied during combing, the smoother the comb, and the better the hair feel after the treatment. The above measurement was performed three times for each sample, and the average value is shown in Table 4.

  Samples formulated with a cationic polymer showed low combing force and were shown to be excellent after touch.

(3. Storage stability evaluation)
The first agent shown in Table 1 was placed in a transparent bottle and stored at -5 ° C for 2 weeks. Two weeks later, the storage bottle was taken out and the appearance was observed, and judged according to the following criteria.

Judgment criteria ○: Uniform and transparent solution ×: Turbidity and precipitates exist

Examples 2-5, Comparative Examples 5-6
The first agent shown in Table 6 was placed in a transparent bottle and stored at −5 ° C. for 2 weeks. Two weeks later, the storage bottle was taken out and the appearance was observed, and the determination was made according to the same criteria as described above.

Claims (10)

A first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a non-aerosol foamer container for discharging a mixture of the first agent and the second agent in the form of foam;
The following components (A) and (B) in the mixture:
(A) A branched or straight chain saturated or unsaturated fatty acid having 14 to 21 carbon atoms or a salt thereof, or a mixture thereof
(B) contains a cationic polymer,
A two-component hair dye, wherein the mass ratio [(B) / (A)] of the content of the component (B) to the content of the component (A) as a fatty acid in the mixed solution is 5 to 15.   The two-component hair dye according to claim 1, wherein the component (B) is a dimethyldiallylammonium salt copolymer.   The two-component hair dye according to claim 1 or 2, wherein the content of the component (A) in the mixed solution as a fatty acid is 0.01 to 0.5 mass%.   Furthermore, the two-component hair dye in any one of Claims 1-3 which contains an anionic surfactant in a liquid mixture.   Furthermore, the 2 agent type hair dye in any one of Claims 1-4 which contains ethanol and / or propanol in a liquid mixture.   Furthermore, the 2 agent type hair dye in any one of Claims 1-5 which contains a non-volatile hydrophilic solvent in a liquid mixture.   The two-component hair dye according to any one of claims 1 to 6, wherein the mixed solution has a viscosity of 1 to 300 mPa · s at 25 ° C.   Using the two-component hair dye according to any one of claims 1 to 7, a liquid mixture of the first agent and the second agent is discharged in a foam form from a non-aerosol foamer container, and the foam is used by hand. Hair coloring method applied to the hair.   The method for dyeing hair according to claim 8, wherein the foam is applied to the hair and then foamed again on the hair using a hand.   The hair coloring method according to claim 8 or 9, wherein the foam is applied to the hair, left for 3 to 60 minutes, and then washed away.