JP2005194204A - Two-pack type hair cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare a two-pack type hair cosmetic which uses an aerosol container comprising an outer can and a plurality of resin-made flexible inner containers stored in the outer can, inhibits the decomposition of hydrogen peroxide contained in the second agent, when receiving the first agent containing ammonia in one of the resin-made flexible inner containers and receiving the second agent containing the hydrogen peroxide in the other, and exhibits good dyeability and bleachability. <P>SOLUTION: This two-pack type hair cosmetic comprises the first agent comprising an aqueous medium and 0.01 to 3 wt. % of ammonia and 0.01 to 10 wt. % of an ammonium salt contained in the aqueous medium, and the second agent comprising an aqueous medium and hydrogen peroxide contained in the aqueous medium. The first agent and the second agent are separately received in the resin-made flexible containers, respectively, stored in the outer can of the aerosol container, and are simultaneously discharged. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a two-component hair cosmetic contained in an aerosol container.

  Conventionally, a two-component hair dye comprising a first agent containing an oxidative dye and an alkali agent and a second agent containing an oxidant such as hydrogen peroxide has been used. Further, a two-component decoloring agent comprising a first agent containing an alkali agent and a second agent containing an oxidizing agent such as hydrogen peroxide is used.

  The first agent and the second agent of the two-component hair cosmetic such as the two-component hair dye or the two-component decoloring agent are required to be stored in separate containers from the viewpoint of storage stability. However, an aerosol product is known in which each of these is accommodated in an aerosol can, and two aerosol cans are connected to discharge two agents simultaneously from one discharge port (Patent Document 1). In this aerosol product, in order to integrate two aerosol cans, they are housed in a single case or wrapped in a film.

JP-A-10-287534

  However, since the conventional aerosol product of two-component hair cosmetics is a combination of two aerosol cans, it is difficult to grasp and it is desired to improve operability and appearance.

  In response to this, two flexible inner containers made of resin are stored in one outer can as a two-component hair cosmetic discharge container, and the contents can be discharged simultaneously from these inner containers. It is conceivable to use a two-component aerosol container.

  However, when the first agent and the second agent of the two-component hair cosmetic are respectively contained in the two resin-made flexible inner containers of the aerosol container, ammonia contained in the first agent is volatilized from the inner container. However, there is a possibility that the second agent enters the inner container, and as a result, the pH of the second agent rises and hydrogen peroxide is decomposed, resulting in a decrease in dyeability or decolorization.

  Therefore, the present invention uses an aerosol container in which a plurality of resin-made flexible inner containers are stored in one outer can, and contains a first agent containing ammonia in one resin-made flexible inner container. When the second agent containing hydrogen peroxide is contained in the other one, the decomposition of hydrogen peroxide contained in the second agent is suppressed, and the two-component hair cosmetic with good dyeability and decoloring property The purpose is to provide.

  In order to achieve the above-mentioned object, the present inventors suppressed the volatilization of ammonia by replacing a part of the ammonia in the first agent of the two-component hair cosmetic with an ammonium salt, and the invasion of the volatilized ammonia. It has been found that it is effective to suppress the increase in pH of the second agent due to.

  That is, the present invention provides a first agent containing 0.01 to 3 wt% ammonia and 0.01 to 10 wt% ammonium salt in an aqueous medium, and a second agent containing hydrogen peroxide in the aqueous medium. The first and second agents are separated and accommodated in a resin-made flexible inner container stored in the outer can of one aerosol container, and discharged simultaneously. A two-component hair cosmetic composition is provided.

  The two-part hair cosmetic of the present invention comprises a first agent containing 0.01 to 3% by weight of ammonia in an aqueous medium and a second agent containing hydrogen peroxide in the aqueous medium. Since the agent further contains 0.01 to 10% by weight of an ammonium salt, it is possible to prevent ammonia from being volatilized from the first agent. Therefore, even under severe storage conditions in which the first agent and the second agent are accommodated in a resin-made flexible inner container and allowed to coexist in the sealed can, the volatilization of ammonia from the first agent is suppressed. An increase in pH of the two agents can be suppressed, and decomposition of hydrogen peroxide contained in the second agent can be suppressed.

  Therefore, according to the present invention, an aerosol container in which a resin-made flexible inner container is stored in one outer can so that the two agents can be separated and accommodated and discharged simultaneously is used as a two-component hair. It can be used as a container for cosmetics. The shape of the outer can of the aerosol container can be the same as that of a commonly used hair styling foam or hair spray outer can. Therefore, the two-component hair cosmetic of the present invention provides a hair cosmetic that is easy to grip, has good operability, improved appearance, has good storage stability, and maintains good dyeability and decolorization. It becomes possible.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In each figure, the same numerals indicate the same or equivalent components.

  FIG. 1 is a schematic perspective view of an aerosol container 1A suitable for housing the two-component hair cosmetic of the present invention. This aerosol container 1A has a resin-made flexible inner bag 3 inside a metal outer can 2. The inner bag 3 is separated into two upper and lower resin-made flexible inner containers 3 a and 3 b by an inner stopper 9. A space between the resin flexible inner containers 3a and 3b and the outer can 2 is filled with compressed gas.

  In this aerosol container 1A, the valve 6 is opened by pressing the cap 4 attached to the top of the outer can 2 and pushing down the stem 5 to the inner side of the outer can 2, and is accommodated in the flexible resin inner container 3a. The contents that have been stored are simultaneously discharged from the discharge port 7 through the slit of the valve, and the contents contained in the resin-made flexible inner container 3b through the dip tube 8.

  On the other hand, the two-component hair cosmetic composition of the present invention includes a two-component hair dye and a two-component bleaching agent. When the two-component hair cosmetic is a two-component hair dye, the first agent contains ammonia and an ammonium salt and an oxidative dye or a direct dye in the aqueous medium, and the second agent contains the excess in the aqueous medium. Contains hydrogen oxide. On the other hand, when the two-component hair cosmetic is a two-component bleaching agent, the first agent contains ammonia and an ammonium salt in an aqueous medium, and does not contain an oxidation dye or a direct dye. The second agent contains hydrogen peroxide in an aqueous medium.

  Whether the two-component hair cosmetic is a two-component hair dye or a two-component depigmenting agent, when the first agent and the second agent are mixed, the mixture becomes alkaline. Melanin is decomposed and decolorized in the hair by the oxidizing action of hydrogen. In addition, when the two-component hair cosmetic is a two-component hair dye containing an oxidation dye, hydrogen peroxide promotes a coloring reaction due to the polymerization of the oxidation dye by mixing the first agent and the second agent. .

  As an aspect in which the two-component hair cosmetic of the present invention is accommodated in the aerosol container 1A of FIG. 1, the first agent is accommodated in one resin-made flexible inner container 3a and the other resin-made flexible inner container. The thing which accommodated the 2nd agent in 3b can be illustrated.

The resin-made flexible inner containers 3a and 3b are preferably formed from an oxygen-impermeable material in order to prevent oxidative deterioration of the first agent. More specifically, the oxygen permeability coefficient (ASTM D3985 (23 ℃, 0 % RH) compliant) is preferably formed from a ^{10cm 3 · mm / (m 2} · d · MPa) or less of material, 2 cm ³ · mm / (M ² · d · MPa) or less is more preferable. Examples of such an oxygen-impermeable material include ethylene-vinyl alcohol copolymer or polyacrylonitrile.

As the material of the resin-made flexible inner containers 3a and 3b, those having further moisture impermeability are preferable. More specifically, the moisture permeability coefficient (according to ASTM F1249 (40 ° C., 90% RH)) is 0. it is preferable to form the ^{.4g · mm / (m 2 ·} d) the following materials, it is preferably formed from ^{0.15g · mm / (m 2 ·} d) following materials. Examples of such a water-impermeable material include cyclic olefin polymers, biaxially stretched polypropylene, unstretched polypropylene, and high-density polyethylene.

  Therefore, as a material for forming the inner containers 3a and 3b, a resin layer such as an ethylene-vinyl alcohol copolymer or polyacrylonitrile having both oxygen impermeability and moisture impermeability, a cyclic olefin polymer, and biaxially stretched polypropylene are used. A laminate of resin layers such as unstretched polypropylene or high-density polyethylene is preferred.

  When the aerosol container 1A as shown in FIG. 1 is used, it is preferable to reduce the cost by integrally molding the two resin-made flexible inner containers 3a and 3b using the same forming material.

  As the compressed gas filled between the two resin-made flexible inner containers 3a and 3b and the outer can 2, compressed nitrogen gas, LPG, or the like can be used. Gas is preferred.

  In the two-part hair cosmetic composition of the present invention, the first agent contains 0.01 to 3% by weight of ammonia and 0.01 to 10% by weight of an ammonium salt in an aqueous medium, and is buffered within a pH range of 8 to 11. In the case where the two-component hair cosmetic is used as a two-component hair dye, it further contains an oxidation dye or a direct dye.

  As an aqueous medium, an organic solvent can be used with water, and it is preferable to use both in combination.

  Examples of the ammonium salt in the first agent include ammonium phosphate, ammonium chloride, ammonium nitrate, and ammonium sulfate. Ammonium chloride is preferred. The preferable content of the ammonium salt is 0.1 to 7% by weight, more preferably 0.2 to 5% by weight.

  The first agent can contain other alkaline agents in addition to ammonia. Examples of such alkali agents include monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol and other alkanolamines; 1,3-diaminopropane and other alkanediamines; guanidine carbonate, sodium carbonate, Examples thereof include carbonates such as potassium carbonate, sodium hydrogen carbonate, and potassium hydrogen carbonate.

  When other alkali agents are used in combination, it is preferable to contain 0.01 to 10% by weight of an alkali agent other than ammonia. More preferably, 0.1 to 1% by weight of ammonia and 1 to 6% by weight of monoethanolamine are used in combination, and 0.1 to 0.3% by weight of ammonia and 3 to 5% by weight of monoethanolamine are used in combination. Is more preferable. Moreover, it is preferable that pH of a 1st agent shall be 8-12 at 25 degreeC.

  The oxidative dye contained when the two-component hair cosmetic is used as the two-component hair dye is also called an oxidative dye intermediate, and is a known developer and coupling usually used in hair dyes. Substances can be used. Examples of the developer include paraphenylenediamine, toluene-2,5-diamine, 2-chloro-paraphenylenediamine, N-methoxyethyl-paraphenylenediamine, and N, N-bis (2-hydroxyethyl) -paraphenylene. Diamine, 2- (2-hydroxyethyl) -paraphenylenediamine, 2,6-dimethyl-paraphenylenediamine, 4,4'-diaminodiphenylamine, 1,3-bis (N- (2-hydroxyethyl) -N- (4-Aminophenyl) amino) -2-propanol, PEG-3,3,2′-paraphenylenediamine, paraaminophenol, paramethylaminophenol, 3-methyl-4-aminophenol, 2-aminomethyl-4- Aminophenol, 2- (2-hydroxyethylaminomethyl) -4-aminophenol, orthoaminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-acetamidophenol 3,4-diaminobenzoic acid, 5-aminosalicylic acid, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine, 4,5-diamino-1- ( 4'-chlorobenzyl) pyrazole, 4,5-diamino-1-hydroxyethylpyrazole and salts thereof.

  Examples of coupling substances include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4- (2-hydroxyethylamino) anisole, 2,4-diamino-5-methylphenetole, 2,4 -Diamino-5- (2-hydroxyethoxy) toluene, 2,4-dimethoxy-1,3-diaminobenzene, 2,6-bis (2-hydroxyethylamino) toluene, 2,4-diamino-5-fluorotoluene 1,3-bis (2,4-diaminophenoxy) propane, metaaminophenol, 2-methyl-5-aminophenol, 2-methyl-5- (2-hydroxyethylamino) phenol, 2,4-dichloro- 3-aminophenol, 2-chloro-3-amino-6-methylphenol, 2-methyl-4-chloro-5-aminophenol, N-cyclopentyl-metaaminophenol, 2-methyl-4-methoxy-5- ( 2-hydroxyethylamino) phenol, 2-methyl-4-fur B-5-aminophenol, resorcin, 2-methylresorcin, 4-chlororesorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5- Methylphenol, 4-hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxybenzomorpholine, 3,4-methylenedioxyphenol, 2-bromo-4,5-methylenedioxyphenol 3,4-methylenedioxyaniline, 1- (2-hydroxyethyl) amino-3,4-methylenedioxybenzene, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dimethoxy-3, 5-diaminopyridine, 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine These salts and the like.

  One or more of each of the developer and the coupling substance can be used, and the content thereof is preferably 0.01 to 5% by weight, particularly 0.1 to 4% by weight in the first agent.

  As the direct dye, known acidic dyes, basic dyes, nitro dyes, disperse dyes, reactive dyes and the like that can be used for hair dyes can be used. Examples of acidic dyes include Red No. 2 (CI16185), Red No. 3 (CI45430), and Red No. 102. Examples of basic dyes include Basic Blue 7 (CI42595), Basic Blue 16 (CI12210), Examples of nitro dyes such as Basic Blue 22 (CI61512) include 2-amino-3-nitrophenol, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, and paranitroorthophenylenediamine. be able to. One or more direct dyes can be used, and the content thereof is preferably 0.001 to 5% by weight, particularly 0.01 to 4% by weight, based on the total composition composed of the first agent and the second agent. Further, an oxidation dye and a direct dye can be used in combination.

  The first agent can further contain a cationic surfactant and / or a nonionic surfactant, preferably further contains a higher alcohol, and preferably contains silicones. By containing these, hair dyeing, decoloring effect and conditioning effect can be enhanced, and operability during hair dyeing such as preventing dripping can be improved.

  In order to suppress the volatilization of ammonia from the first agent, the viscosity of the first agent is 1000 mPa · s or more, preferably 5000 mPa · s or more, more preferably 10,000 mPa · s or more at 25 ° C. Moreover, it is preferable to make it as high a viscosity as possible so that it can be discharged, such as gel or cream. In the present invention, when the viscosity is 10000 mPa · s or less, the rotor No. at 25 ° C. is a B type viscometer manufactured by Toki Sangyo Co., Ltd. 4 is a numerical value measured after 1 minute at a rotation speed of 30 rpm. In the case of 10000 mPa · s or more, the value is measured after 1 minute at a rotation speed of 10 rpm using a rotor TC at 25 ° C. with a B8R viscometer manufactured by Toki Sangyo Co., Ltd. Such viscosity adjustment can be performed by changing the kind and amount of nonionic surfactant, higher alcohol, etc., the ratio of both, and the like.

  On the other hand, the second agent of the two-component hair cosmetic of the present invention contains hydrogen peroxide in an aqueous medium.

  The content of hydrogen peroxide is 0.1 to 9% by weight in the second agent from the viewpoint of sufficient decolorization effect, hair dyeing effect, and reduction of hair damage and scalp irritation, preferably 0.5 to 6% by weight.

  The pH of the second agent is preferably 2 to 5 where hydrogen peroxide is stable. Therefore, the second agent preferably contains an inorganic acid such as phosphoric acid, tripolyphosphoric acid or hydrochloric acid or an organic acid such as glycolic acid, acetic acid, lactic acid, citric acid, succinic acid, tartaric acid or malic acid.

  Furthermore, in order to maintain the second agent at a stable pH of 2 to 5 of hydrogen peroxide, it is preferable that the second agent coexists with acids having a pKa value of 2 to 5 and salts thereof, and a buffer system of pH 2 to 5 is assembled. . For this purpose, for example, an alkalizing agent such as an alkali hydroxide may be added to the acids, or a salt thereof may be added to the acids. In this case, the additive is preferably ammonia or ammonium salt.

  Even when the pH of the second agent at 25 ° C. is adjusted to 2 to 5, the pH after mixing the first agent and the second agent is 7.5 to 7.5 in terms of decoloring effect or hair coloring effect and skin irritation. 12, More preferably, the amount of the alkali agent of the first agent and the amount of acids of the second agent are adjusted so as to be 8 to 11.

  As an aqueous medium for the second agent, an organic solvent can be used in addition to water.

  The second agent can further contain a nonionic surfactant, and preferably contains either or both of higher alcohols and silicones. By containing these, hair dyeing, decoloring effect and conditioning effect can be enhanced, and operability during hair dyeing such as preventing dripping can be improved. Moreover, the said effect can be increased more by containing a cationic surfactant further.

  However, when using an aerosol container that has a structure in which the metallic spring that constitutes the valve on the exit path and the second agent are in contact with each other, halogen ions are used as counter ions in the second agent from the viewpoint of preventing corrosion of the metallic spring. It is preferable not to contain a cationic surfactant.

  The viscosity of the second agent is preferably 1000 mPa · s or more at 25 ° C., more preferably 5000 mPa · s or more, and still more preferably 10,000 mPa · s or more. Moreover, it is preferable to make it as high a viscosity as possible so that it can be discharged, such as gel or cream.

  Examples of the organic solvent used in the first or second agent include lower alkanols such as ethanol and 2-propanol, aromatic alcohols such as benzyl alcohol and benzyloxyethanol, propylene glycol, 1,3-butanediol, Examples thereof include polyols such as diethylene glycol and glycerin, cellosolves such as ethyl cellosolve and butyl cellosolve, and carbitols such as ethyl carbitol and butyl carbitol. One or more organic solvents can be used, and the content thereof is preferably 0.1 to 15% by weight, particularly 1 to 10% by weight in the first agent or the second agent. Of these, propylene glycol is preferably used.

  As the nonionic surfactant used in the first agent or the second agent, it is preferable to use two or more types having different HLB, for example, a hydrophilic nonionic surfactant having HLB of 10 to 20 and A lipophilic nonionic surfactant having an HLB of 1 or more and less than 10 is used.

  Examples of hydrophilic nonionic surfactants of HLB 10-20 include polyoxyethylene octyldodecyl ether, polyoxyethylene oleyl ether, polyoxyethylene tridecyl ether, polyoxyethylene lauryl ether, polyoxyethylene isostearyl ether, etc. Examples include polyoxyethylene alkyl ether and alkyl glycoside.

  As the lipophilic nonionic surfactant having an HLB of 1 or more and less than 10, the polyoxyethylene alkyl ether may be lipophilic, polyoxyethylene polypropylene alkyl ether, alkyl glyceryl ether, alkyl glyceryl pentaerythritoyl ether, alkyl diglyceryl. Examples include ether and alkyl triglyceryl ether. In particular, isostearyl glyceryl ether, isostearyl diglyceryl ether and isostearyl glyceryl pentaerythritoyl ether are preferred.

  As the higher alcohol used in the first agent or the second agent, a saturated linear or branched monohydric alcohol having 12 to 24 carbon atoms can be used. For example, myristyl alcohol, cetyl alcohol, stearyl alcohol and the like can be mentioned, among which cetyl alcohol and the like are preferable. The content of the higher alcohol is preferably 0.1 to 20%, particularly preferably 0.2 to 10% in the first agent or the second agent.

  As the cationic surfactant used in the first agent or the second agent, those used for rinsing and softening agents can be used, for example, those represented by the following general formula (1) are used. it can.

[Wherein R ¹ , R ² , R ³ and R ⁴ independently represent a hydrocarbon group which may have a substituent, and at least one of R ¹ and R ² has 8 to 36 carbon atoms. And the remainder has 1 to 7 carbon atoms, or R ³ and R ⁴ together with the adjacent nitrogen atom may be substituted by an alkyl group having 1 to 4 carbon atoms. A 5- to 7-membered ring which may contain a nitrogen atom, an oxygen atom or a sulfur atom as a hetero atom other than the atom may be formed, and A ⁻ 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. Substituents include a hydroxy group, an alkoxy group, and an aryloxy group. Group, epoxy group, amino group, mono- or dialkylamino group, trialkylammonium group, fatty acid amide group, fatty acid ester group and the like. Examples of the ring forming group include a morpholine ring, an imidazoline ring, a piperazine ring, a piperidine ring, and a pyrrolidine ring. Examples of the anion include chloride ion, bromide ion, iodide ion, methyl sulfate ion, ethyl sulfate ion, acetate ion, phosphate ion, sulfate ion, lactate ion, or saccharin ion.

Specific examples of the cationic surfactant include cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, isostearyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, octadecyl trimethyl ammonium chloride, cocoyl trimethyl ammonium chloride, cetyl bromide. Trimethyl ammonium, stearyl trimethyl ammonium bromide, lauryl trimethyl ammonium bromide, isostearyl lauryl dimethyl ammonium chloride, dicetyl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, dicocoyl dimethyl ammonium chloride, γ-gluconamidopropyldimethylhydroxyethylammonium chloride , Di (polyoxyethylene (2)) chloride Rumethylammonium chloride, dodecyldimethylethylammonium chloride, octyldihydroxyethylmethylammonium chloride, tri (polyoxyethylene (5)) stearylammonium chloride, polyoxypropylenemethyldiethylammonium chloride, lauryldimethyl (ethylbenzyl) ammonium chloride, behenic chloride Examples include amidopropyl-N, N-dimethyl-N- (2,3-dihydroxypropyl) ammonium, tallowdimethylammoniopropyltrimethylammonium dichloride, benzalkonium chloride, and the like. R ¹ is a linear or branched alkyl group having 8 to 30 carbon atoms, a linear or branched alkenyl group having 8 to 30 carbon atoms, or a fatty acid amide alkyl group, and R ² , R ³ and R ⁴ are A methyl group, or R ¹ and R ² are a linear or branched alkyl group having 8 to 30 carbon atoms, a linear or branched alkenyl group having 8 to 30 carbon atoms, or a fatty acid amide alkyl group. R ³ and R ⁴ are preferably methyl groups. The content of the cationic surfactant is preferably 0.01 to 10%, particularly 0.1 to 5% in the first agent or the second agent.

  Silicones used in the first or second agent include dimethylpolysiloxane, polyether-modified silicone, amino-modified silicone, carboxy-modified silicone, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, and aliphatic alcohol-modified. Examples thereof include silicone, epoxy-modified silicone, fluorine-modified silicone, cyclic silicone, and alkyl-modified silicone. Of these, dimethylpolysiloxane, polyether-modified silicone, and amino-modified silicone are preferable. Dimethylpolysiloxane can give good lubricity to hair, polyether-modified silicone can give smoothness to hair, and amino-modified silicone can give moist feeling to hair. . In the present invention, various silicones can be used alone or in combination of two or more depending on the desired performance.

The dimethylpolysiloxane can be used from a kinematic viscosity of about 5 mm ² / s depending on the desired feel to about 10 million mm ² / s which is often supplied as an emulsion. ² / s, particularly 50,000 to 10 million mm ² / s is preferable. Polyether-modified silicone is a general term for polyoxyethylene / methylpolysiloxane copolymer and poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymer, and those having various HLBs are known. Commercially available products include Shin-Etsu Chemical's Silicone KF351A, KF353A, KF6008, KF6016, KF6011, KF6012, Toray Dow Corning Silicone SH3771C, 3773C, and 3775C. As the amino-modified silicone, amodimethicone oil or an emulsion thereof is preferable. Examples of commercially available products include Amodimethicone emulsion SM8704C manufactured by Toray Dow Corning Silicone Co., KT-1989, XF42-B1989 manufactured by Toshiba Silicone Co., Ltd. It is done.

  The content of the silicones is preferably 0.05 to 10% by weight, more preferably 0.1 to 5% by weight in the first agent or the second agent, from the viewpoint of easy fingering and no stickiness. .

  The first agent or the second agent includes hydrocarbons, animal and vegetable oils and fats, higher fatty acids, natural or synthetic polymers, ethers, amphoteric surfactants, protein derivatives, amino acids, preservatives, chelating agents, and stabilizers. Further, antioxidants, plant extracts, herbal extracts, vitamins, fragrances, ultraviolet absorbers and the like can be further contained.

  In the two-part hair cosmetic composition of the present invention, the mixing ratio of the first agent and the second agent is preferably 1: 0.5 to 1: 3 of the first agent: second agent (weight ratio), A ratio of about 1: 1 is more preferable in terms of practicality. In the aerosol container 1A of FIG. 1, the mixing ratio of the first agent and the second agent is the valve slit dimension, the dip tube inner diameter dimension, the stem diameter dimension, or the first agent or the second agent contained in the resin flexible inner container. It can set suitably by adjusting the viscosity etc. of 2 agents.

  As a method for using the two-component hair cosmetic of the present invention, the first agent and the second agent are simultaneously discharged and applied to the hair after mixing, or applied while mixing on the hair, and 15 to 45 ° C. A method of rinsing the hair cosmetic with water at a temperature of 1 to 60 minutes, preferably 5 to 45 minutes, and washing, treating, and drying the hair with shampoo, rinse, etc. as necessary.

  As described above, the two-part hair cosmetic of the present invention has been described by taking as an example the case where the two-part hair cosmetic of the present invention is accommodated in the aerosol container 1A of FIG. 1, but the two-part hair cosmetic of the present invention has various flexible resin contents. It can be used in a container.

  For example, as the aerosol container, as shown in FIG. 2, an aerosol container 1B in which resin-made flexible inner containers 3a and 3b are arranged side by side and in the outer can 2 may be used, as shown in FIG. Alternatively, an aerosol container 1 </ b> C in which one resin flexible inner container 3 a is arranged outside the other resin flexible inner container 3 b may be used. Furthermore, an aerosol container in which three or more resin-made flexible inner containers are stored in one outer can can also be used.

  Hereinafter, based on an Example, this invention is demonstrated concretely.

Example 1
The 1st agent and 2nd agent of the two-component hair dye of the composition shown in Table 1 and Table 2 were prepared according to the conventional method, respectively, and the cream-like composition was obtained. The obtained second agent is filled into the resin flexible inner container 3B of the aerosol container 1A of FIG. 1, and after the inner plug 9 is filled, the first agent is filled into the resin flexible inner container 3a. A compressed nitrogen gas is filled as a compressed gas between 3a, 3b and the outer can 2. As the inner containers 3a and 3b, a laminated material of polyethylene and ethylene-vinyl alcohol copolymer is used. The two-component hair dye thus obtained exhibits good hair dyeing properties even when stored for a long period of time, and the appearance upon discharge hardly changes.

  The present invention can be applied to hair dyeing or decolorization.

It is a typical perspective view of an example of an aerosol container suitable for accommodation of the two-component hair cosmetics of the present invention. It is a typical perspective view of the other aerosol container which can accommodate the two agent hair cosmetics of this invention. It is a typical perspective view of the other aerosol container which can accommodate the two agent hair cosmetics of this invention.

Explanation of symbols

1A, 1B, 1C Aerosol container 2 Outer can 3a, 3b Resin flexible inner container 4 Cap 5 Stem 6 Valve 7 Discharge port 8 Dip tube 9 Middle plug

Claims (5)

  Two-component system comprising a first agent containing 0.01 to 3 wt% ammonia and 0.01 to 10 wt% ammonium salt in an aqueous medium, and a second agent containing hydrogen peroxide in the aqueous medium A two-component type that is a hair cosmetic, wherein the first agent and the second agent are separately contained in a resin-made flexible inner container stored in an outer can of an aerosol container, and discharged simultaneously Hair cosmetics.   The two-component hair cosmetic according to claim 1, wherein the first agent contains an oxidative dye or a direct dye.   The two-component hair cosmetic according to claim 1 or 2, wherein the first agent or the second agent contains a cationic surfactant.   The two-component hair cosmetic according to any one of claims 1 to 3, wherein the first agent or the second agent contains a nonionic surfactant. The two-component hair cosmetic according to any one of claims 1 to 4, wherein the first agent or the second agent contains a higher alcohol.

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