JP6502007B2 - Aerosol hair cosmetic composition - Google Patents

Description

  The invention disclosed in the present application relates to an aerosol hair cosmetic composition. Specifically, the present invention relates to an aerosol-type hair cosmetic composition used by filling an aerosol container which is a dual-structure container.

  The first agent containing the alkaline agent and the second agent containing the oxidizing agent are mixed at the time of use. In so-called aerosol type hair cosmetic products using a propellant, the first and second agents of the hair cosmetic composition are separately filled in the aerosol container and discharged from the aerosol container at the time of use.

  The aerosol container in which the first and second agents and the propellant are charged in separate spaces is a double structure container. In the dual structure container, the propellant provides a pressure for discharging the first agent filled in the first inner container and the second agent filled in the second inner container, and the pressure elastically deforms the inner container, The cream can be discharged as it is. As propellants, compressed gas and liquefied gas can be used.

  The following Patent Document 1 discloses a so-called "double can" type aerosol container (see Patent Documents 1 to 3). In one specific example of the aerosol container, the first container 11 and the second container 13 are each filled with the propellant as the compressed gas and the first agent or the second agent, and the first agent or the second agent is creamed. It can be discharged as it is. As is apparent from the construction of the aerosol container, there may be a difference in propellant volume / pressure in the container between the first container 11 and the second container 13. Since the amount of propellant / pressure in the container can be freely set in each container, the case where the first agent and the second agent have different viscosities / viscosities or generated from the oxidant (especially hydrogen peroxide) of the second agent It is easy to cope with oxygen.

  Patent Document 2 below discloses an aerosol container that can be used in a hair cosmetic composition. The following patent documents 2 FIGS. 3-6 disclose the double structure container in which a 1st inner container and a 2nd inner container exist in the same outer container.

JP 2002-240873 A JP 2001-122364 A

  In the double structure container disclosed in the patent document 2 FIGS. 3 to 6, since the first inner container and the second inner container are in the same outer container, the first agent and the second agent are under the same pressure. Will be put. Therefore, it is not possible to place the first and second agents under different pressures, as in a dual canister type aerosol container. In addition, there is a problem that it is desirable to discharge the first and second agents in a desired ratio even after storing the aerosol type hair cosmetic product for a certain period of time.

  However, the dual structure container has the advantage that it can be produced at low cost with a small number of components. In addition, there is also an advantage that the degree of freedom in design of the shape of the outer container is high.

  The two-can type aerosol container has a wide shape in which two double-structured containers are arranged side by side, and there is room for improvement in terms of the ease of holding the aerosol container. The double-structured container can be easily grasped as the shape of the outer container as a substantially cylindrical shape.

  In consideration of the above, the inventor of the present application adopted a dual-structure container.

  Next, the double can type inner container which has been marketed conventionally is molded into a cylindrical shape, and if discharge of the filling is continued, the right and left sides of the inner container will be pinched, and the container will not be crushed properly. Therefore, although the flow path of the filler is secured in the inner container, the remaining amount of the filler which can not be discharged increases.

  In the double-structured container, if the pouch container formed by laminating the elastically deformable sheet material is used as the inner container, the sheet materials are brought together and crushed when the discharge is continued, and the packing material is I thought that I could reduce the remaining amount. However, at the stage where a large amount of the filling remains, the flow path of the filling is blocked and the movement of the filled agent becomes worse, and as a result, the remaining amount in the pouch container can not be reduced.

  As a result of extensive research, the inventor of the present invention made the innermost layer of the pouch container a polyolefin resin layer, and the content ratio of the nonionic surfactant to the higher alcohol of the agent filled in the pouch container is within a certain range. By doing this, it has been found that the remaining amount of filler can be reduced, and the invention disclosed in the present application has been completed.

  Accordingly, it is an object of the present invention to provide an aerosol-type hair cosmetic composition that can reduce the remaining amount in the pouch container.

  The first agent of the aerosol type hair cosmetic composition often contains a large amount of an oil component and a surfactant as compared with the second agent. Therefore, the remaining amount in the inner container tends to be larger in the first agent than in the second agent. The invention disclosed in the present application is also useful in that the remaining amount of the first agent can be reduced.

(First invention)
A first invention of the present application for solving the above-mentioned problems is:
An aerosol-type hair cosmetic composition, which comprises an alkaline agent-containing first agent and an oxidizing agent-containing second agent, as an oxidative hair dye or hair decoloring agent,
In the aerosol type hair cosmetic composition, a first inner container filled with the first agent and a second inner container filled with the second agent, which are independently provided, are accommodated in the same outer container, The space between the outer container and each of the inner containers is a propellant filled space filled with a propellant, and is filled in a double structure container equipped with a mechanism for simultaneously discharging the first agent and the second agent Used and
At least one of the first inner container and the second inner container is a pouch container formed by laminating a sheet material having a single layer or multilayer structure including a resin layer, and the innermost layer of the pouch container is a polyolefin resin layer Yes,
The agent filled in the pouch container contains a nonionic surfactant and a higher alcohol, and the condition of nonionic surfactant / higher alcohol = 0.07 to 1.8, which is the content ratio on a mass basis Fulfill,
It is an aerosol type hair cosmetic composition.

(Invention 2)
A second invention of the present application for solving the above-mentioned problems is:
An aerosol-type hair cosmetic composition according to the first invention;
A first inner container filled with the first agent and a second inner container filled with the second agent which are independently provided are accommodated in the same outer container, and the outer container and each inner container The space between the two is a propellant filling space filled with a propellant, and has a mechanism for simultaneously discharging the first agent and the second agent
At least one of the first inner container and the second inner container is a pouch container formed by laminating a sheet material having a single layer or multilayer structure including a resin layer, and the innermost layer of the pouch container is a polyolefin resin layer It is an aerosol-type hair cosmetic product including a certain dual-structure container.

  The aerosol-type hair cosmetic composition disclosed by the present application can reduce the remaining amount in the pouch container.

It is a front view of the aerosol container in which a 1st inner container and a 2nd inner container exist in the same outer container. The first inner container and the second inner container are pouch containers.

  The invention disclosed in the present application will be described below including its best embodiment.

  The aerosol-type hair cosmetic composition disclosed in the present application contains an alkaline agent-containing first agent and a second agent containing an oxidizing agent in the constitution, and is an oxidative hair dye or a hair decolorizing agent. The aerosol-type hair cosmetic composition is used by filling in a double-structured container described later.

  The aerosol type hair cosmetic composition can be used by a conventional method. Preferably, it is used on human hair. Usually, the first agent and the second agent are discharged from a double structure container described later at the time of use, applied to the hair, and washed and used after treatment. The timing of mixing of the first agent and the second agent can be appropriately selected, and may be mixed prior to application to the hair, or may be simultaneously applied to the hair and mixed using a comb or the like. The mixing device may be attached to the dual structure container and mixed and then applied to the hair.

[First agent]
The first agent contains an alkaline agent. As an alkali agent, for example, ammonia, alkanolamine (monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine etc.), organic amines (2-amino-2-methyl-1-propanol) , 2-amino-2-methyl-1,3-propanediol, guanidine etc., basic amino acids (arginine, lysine etc.) and salts thereof, inorganic alkalis (sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate) Etc.).

  The first agent may contain one or more alkaline agents. The content of the alkaline agent is preferably set to an amount such that the pH of the first agent is in the range of 8 to 12.

  When the aerosol hair cosmetic composition is an oxidative hair dye composition, the first agent contains an oxidative dye.

  An oxidation dye is a compound which can be colored by oxidative polymerization. Oxidation dyes include, for example, dye intermediates, couplers, melanin precursors and the like. The first agent may contain one or more oxidation dyes.

  More specifically, for example, as an oxidation dye, phenylenediamine and its derivatives, phenol derivatives, aminophenol and its derivatives, diphenylamine and its derivatives, pyridine derivatives, pyrimidine derivatives, pyrazole derivatives, pyrrolidine derivatives, toluene derivatives, indole derivatives, Pyrrole derivatives as well as imidazole derivatives and the like can be mentioned.

  More specifically, for example, as dye intermediates, phenylenediamines (with the exception of metaphenylenediamine), aminophenols (with metaaminophenol, 2,4-diaminophenol and paramethylaminophenol). Toluylene diamines (except toluene-3,4-diamine and toluene-2,4-diamine), diphenylamines, diaminophenylamines, N-phenylphenylenediamines, diaminopyridines (excluding toluene-3,4-diamine and toluene-2,4-diamine) However, 2), 6- diaminopyridine etc. are mentioned.

  As couplers, pyrogallol, resorcinol, catechol, meta-aminophenol, meta-phenylenediamine, 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-amino orthocresol, paramethylaminophenol, 2,4-diaminophenoxyethanol, gallic acid, tannic acid, ethyl gallate, gallic acid Methyl, propyl gallate, pentameric, 5- (2-hydroxyethylamino) -2-methylphenol and the like can be mentioned.

  The first agent may contain a direct dye. The first agent itself can be colored to facilitate identification with the second agent. Examples of the direct dye include acid dyes, basic dyes, natural dyes, nitro dyes, disperse dyes, HC dyes and the like.

  In addition to the above components, the first agent is, for example, water such as purified water, distilled water, ion-exchanged water, water-soluble polymer, solvent, hydrocarbon, wax, higher fatty acid, ester, higher alcohol, silicone, Ionizable surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, thickeners, amino acids, saccharides, preservatives, chelating agents, pH adjusters, antioxidants such as anhydrous sodium sulfite Plant or herbal extracts, vitamins including ascorbic acids, flavors, ceramides, UV absorbers, antistatic agents, hair softeners, penetration enhancers and the like may be blended.

  The first agent is preferably an emulsion and discharged from a double-structured container described later. Therefore, it is preferable that the 1st agent of the state with which the 1st inner container was filled is an emulsion.

  Moreover, it is preferable that the first agent is in the form of a cream and discharged from a double structure container described later. The viscosity of the cream-like first agent may be 5000 to 50000 mPa · s. Preferably, the viscosity of the first agent is 6000 to 30000 mPa · s. Viscosity using a B-type viscometer at 25 ° C for 1 minute, rotational speed: 12 rpm, No. 3 rotor (in the case of viscosity 5000 mPa · s or less), No. 4 rotor (in the case of viscosity 5000 mPa · s or more) Measure below. For a viscometer, for example, a VISCOMETER TV-10 viscometer may be used.

[Second agent]
The second agent contains an oxidizing agent. The content of the oxidizing agent in the second agent is preferably 0.1 to 15% by mass, preferably 1.0 to 9.0% by mass, and more preferably 2.0 to 6.0% by mass.

  As oxidizing agents, hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, Examples include calcium peroxide, strontium peroxide, hydrogen peroxide adduct of sulfate, hydrogen peroxide adduct of phosphate, hydrogen peroxide adduct of pyrophosphate and the like. The oxidizing agent may contain one or more kinds.

  The pH of the second agent is preferably 2 to 6, more preferably 3 to 5.

  The second agent is, for example, water such as purified water, distilled water, ion-exchanged water, a water-soluble polymer, a higher alcohol, a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant , Polyhydric alcohols, hydrocarbons, fats and oils, waxes, higher fatty acids, esters, alkyl glyceryl ethers, solvents, thickeners, amino acids, silicones, saccharides, phenoxyethanol, hydroxyethane diphosphonic acid, hydroxyethane diphosphonic acid A hydrogen peroxide stabilizing component such as tetrasodium, a chelating component, a pH adjusting component, a plant or herbal extract, a flavor and the like may be blended.

  The second agent is preferably an emulsion and discharged from a double-structured container described later. Therefore, it is preferable that the 2nd agent of the state with which the 2nd inner container was filled is an emulsion.

  The second agent is preferably in the form of a cream and is discharged from a double structure container described later. The viscosity of the cream-like second agent may be 5000 to 50000 mPa · s. Preferably, the viscosity of the second agent is 6000 to 30000 mPa · s.

[Double structure container]
In the double structure container, the first inner container filled with the first agent and the second inner container filled with the second agent, which are independently provided, are housed in the same outer container, and A space between each of the inner container and the inner container is a propellant filled space filled with a propellant, and has a mechanism for simultaneously discharging the first agent and the second agent.

  One specific example of the double structure container will be described with reference to FIG.

  In the double structure container 1, the first outer container 2 filled with the first agent and the second inner container 3 filled with the second agent are provided independently of each other, and the same outer container 4 which is substantially cylindrical is provided. It is housed. The space between the outer container 4 and each of the inner containers 2 and 3 is a propellant filled space filled with the propellant.

  The dual structure container comprises a valve unit 5. The valve unit 5 includes a first communication passage which is a passage of the first agent filled in the first inner container 2 and a second communication passage which is a passage of the second agent filled in the second inner container 3. ing. In order to secure the communication passages, the first inner container 2 and the second inner container 3 may be provided with, for example, a rod-like joint material extending from the opening of the inner container into the container.

  Further, the valve unit 5 is provided with a vertically movable valve stem for opening and closing each communication passage.

  The discharger 6 is coupled to the valve unit 5, and when the discharger 6 is depressed, each valve stem is opened. The discharge passage 7 for discharging the first agent and the second agent having passed through the valve stems is provided in the inside of the discharger 6. The discharge path 7 may be configured to discharge the first agent and the second agent separately, or may be configured to be able to associate the first agent and the second agent in the discharger 6.

  Therefore, when the discharger 6 is depressed, the first agent filled in the first inner container 2 and the second agent filled in the second inner container 3 are respectively in the communication passage, in the valve stem, and in the discharge passage 7. Are discharged simultaneously. Normally, the valve stem in the valve unit 5 is biased upward, and when the depressing operation of the discharger is stopped, the valve stem is closed and the discharge is stopped.

  The inside of the outer container 4 is constantly pressurized by the propellant. When the discharger 6 is depressed, the inner containers 2 and 3 filled with the first agent and the second agent are elastically deformed by pressure, and the filling can be discharged. Also, a mixing device prepared separately may be used.

  The outer container 4 of the dual structure container is a pressure-resistant container including PET, polyacrylate, nylon, polypropylene, aluminum, tinplate, and the like in the configuration. The outer container 4 in FIG. 1 is made of a light transmitting material.

  Each of the first inner container 2 and the second inner container 3 shown in FIG. 1 is a pouch container formed by bonding an elastically deformable sheet material whose innermost layer is a polyolefin resin layer. The pouch container has a sheet-like shape when the contents are not filled (or after the filling is completely discharged). The same phenomenon occurs when the joint material is inserted into the inner container.

  The sheet material constituting the pouch container may have a single layer structure or a multilayer structure. Further, the pouch container may be configured by bonding a plurality of sheet materials, or may be formed by bending a single sheet material and bonding.

  As said polyolefin resin, there exist PE, PP, etc. When the first agent contains an oxidation dye, it is preferable that the first inner container 2 includes a metal foil layer from the viewpoint of storage stability of the oxidation dye.

  Although illustration is omitted, either one of the first inner container 2 and the second inner container 3 may be a cylindrical inner container as disclosed in Patent Document 1 and Patent Document 2 described above. Moreover, any one of the first inner container 2 and the second inner container 3 may have the innermost layer of the pouch container as a resin layer other than the polyolefin resin.

[Propellant]
In the dual structure container, the propellant loading space is provided separately and separately from the loading space for the first agent and the loading space for the second agent.

  For example, liquefied gas or compressed gas can be used as the propellant for filling the propellant filling space. From the viewpoint of safety, compressed gas is preferred as the propellant.

  Examples of the liquefied gas include LPG, DME, isopentane and the like. Examples of the compressed gas include nitrogen gas (compressed nitrogen), carbon dioxide gas, and compressed air.

  In addition, when carbonates, such as sodium carbonate and potassium carbonate, and / or percarbonates, such as sodium percarbonate and potassium percarbonate, are used as an oxidizing agent as an alkali agent, a carbon dioxide will be generated and a foaming agent will be generated. Easy to mold.

[Pouch container filler]
The aerosol-type hair cosmetic composition disclosed in the present application is used by filling at least one of the first agent and the second agent in a pouch container whose innermost layer is a polyolefin resin layer. Preferably, the first agent is used by filling it in a pouch container whose innermost layer is a polyolefin resin layer. More preferably, both the first agent and the second agent are used by filling in a pouch container whose innermost layer is a polyolefin resin layer.

  For convenience of explanation, an agent used by filling the pouch container in which the innermost layer is a polyolefin resin layer is referred to as a pouch container filler. Hereinafter, the pouch container filler will be described.

  The pouch container filler contains a nonionic surfactant and a higher alcohol. And, the pouch container filler satisfies the condition of non-ionic surfactant / higher alcohol = 0.07 to 1.8, which is the content ratio on a mass basis. Even if the ratio is less than 0.07 or more than 1.8, the remaining amount in the pouch container will be large. From the viewpoint of reducing the remaining amount in the pouch container, the ratio is preferably in the range of 0.1 to 1.6, and more preferably in the range of 0.3 to 1.5. From the viewpoint of reducing the remaining amount in the pouch container and maintaining the discharge ratio maintainability of the first agent and the second agent over time, the ratio may be in the range of 0.13 to 0.60. preferable.

  The content of the nonionic surfactant in the pouch container filler may be 0.1 to 10% by mass, and may be 0.5 to 6% by mass.

  The content of the higher alcohol in the pouch container filler may be 0.1 to 10% by mass, and may be 1 to 9% by mass.

  Nonionic surfactants include polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, alkyl polyglucosides, sugar esters, sugar amides, alkyl polyglyceryl ethers and the like.

  The pouch container filler preferably contains a polyoxyalkylene alkyl ether as a nonionic surfactant, and more preferably contains a polyoxyethylene (hereinafter also referred to as POE) alkyl ether. It is preferable that carbon number of the alkyl part in the said polyoxyalkylene alkyl ether is 14-22. Specific examples include POE cetyl ether, POE oleyl ether, POE stearyl ether, POE behenyl ether and the like.

  From the viewpoint of the emulsion stability of the pouch container filler, the pouch container filler preferably contains a nonionic surfactant having an HLB value of 10 or more, preferably an HLB value of 14 or more. Furthermore, it is more preferable to contain a nonionic surfactant having an HLB value of less than 10, preferably an HLB value of less than 8, in addition to the nonionic surfactant. It is considered that when the emulsion is stable, the effects of the invention disclosed in the present application can be easily exhibited. The HLB value of the nonionic surfactant can be determined from the known Griffin equation.

  The higher alcohol is a monohydric alcohol having 6 or more carbon atoms. Higher alcohols correspond to oily components. Preferably the higher alcohol is saturated. The higher alcohol is preferably linear. Moreover, it is preferable that carbon number of a higher alcohol is 12-22.

  From the viewpoint of improving the discharge ratio maintenance property of the first agent and the second agent over time, the higher alcohol / all higher alcohol having 14 to 18 carbon atoms, which is the mass ratio content ratio in the pouch container filler, is 0.7 It is preferable to set it as the above.

  It is preferable that the pouch container filler contain a cationic surfactant from the viewpoint of improving the discharge ratio maintenance property of the first agent and the second agent with time. The content of the cationic surfactant in the pouch container filler is preferably 0.1 to 2.5% by mass, and more preferably 0.2 to 0.7% by mass.

  From the viewpoint of lightness improvement, the aerosol-type hair cosmetic composition preferably contains an oily component which is solid at 25 ° C. excluding higher alcohols.

  The oil component solid at 25 ° C. includes hydrocarbons such as microcrystalline wax, waxes such as lanolin, beeswax and candelilla wax, higher fatty acids such as stearic acid, myristic acid, palmitic acid and behenic acid, stearyl stearate, There are esters comprising a monovalent fatty acid such as myristyl myristate and cetyl palmitate and a monohydric higher alcohol. In the present application, silicones are not included in the oil component solid at 25 ° C.

  The aerosol-type hair cosmetic composition preferably contains, as an oil component solid at 25 ° C. excluding a higher alcohol, at least one selected from an ester consisting of a hydrocarbon and a monohydric fatty acid and a monohydric higher alcohol. .

  From the viewpoint of improving the lightness, the content of the oil component solid at 25 ° C. excluding the higher alcohol in the pouch container filler is preferably 0.01 to 8% by mass, and is 0.5 to 5% by mass. Is more preferred. If the content of the solid oil component at 25 ° C. excluding the higher alcohol increases, the slip with the pouch container may be reduced, and from this viewpoint as well, the content is preferably in the above range.

[Hair cosmetic products]
The present application discloses a hair cosmetic product comprising the above aerosol hair cosmetic composition and the above dual structure container.

  The hair cosmetic product may contain any other suitable configuration. For example, a brush, a comb, a mixing cup, gloves, a hair cap and the like may be included in the configuration.

  Hereinafter, the embodiments of the invention disclosed by the present application will be described. The technical scope of the invention disclosed by the present application is not limited to the following examples.

First, the table will be described. The numerical value which shows content in a table | surface is a mass% unit.
Nonionic surfactants listed HLB values. The parentheses following the POE indicate the number of moles of POE added.
In the table, nonionic surfactants are described as nonionic surfactants.
The microcrystalline wax, stearic acid, stearyl stearate and lanolin are solid at 25 ° C. Vaseline is not solid at 25 ° C.

  The 1st agent and 2nd agent of the oxidation hair dye composition which concern on each Example and a comparative example were prepared by the conventional method. Each agent was a creamy emulsion, and the viscosity was in the range of 5000 to 50000 mPa · s. In Examples 14 to 24 and Comparative Examples 1 to 2, the same second agent as in Example 1 was used.

  In the following tests, the dual structure container shown in FIG. 1 was used. The first inner container and the second inner container were both pouch containers, and the resin material constituting the innermost layer of each pouch container was polyethylene. Compressed nitrogen was used as a propellant.

  The oxidation hair dye composition according to each example and each comparative example was filled in a double structure container, a product was manufactured so that the internal pressure of the double structure container would be 0.5 MPa, and the following tests were conducted.

[Remaining capacity evaluation test]
The oxidized hair dye composition was discharged until the filler could not be discharged from the product (whole volume discharge), and the weights of the first and second agents in the inner container after total volume discharge were measured.

With respect to the first agent and the second agent, the ratio of the remaining amount in the inner container was calculated by the following equation.
Remaining percentage (%) = (Weight after discharge of whole amount) / (Weight before discharge) x 100

  The remaining amount evaluation test was performed in triplicate, the average value was determined, and the results were shown in the table by rounding off the second decimal place.

Moreover, the following criteria were set and it described in the "remaining amount evaluation" column in a table | surface.
5: Remaining percentage is less than 2%, 4: Remaining percentage is 2% or more to less than 2.5%, 3: Remaining percentage is 2.5% or more to less than 3%, 2: Remaining percentage is 3% More than-less than 3.5%, 1: Remaining percentage is 3.5% or more.

  The pouch container according to each example was cleanly crushed and had a shape similar to one sheet, and the remaining amount evaluation was good. On the other hand, it is considered that each comparative example did not satisfy the condition of non-ionic surfactant / higher alcohol = 0.07 to 1.8, so that the remaining amount evaluation became worse. Therefore, the importance of the ratio in the remaining amount evaluation was confirmed.

  Next, the first agent of Example 20 was considered to have a residual amount evaluation of 3 because the non-ionic surfactant / higher alcohol ratio exceeded 1.6. Moreover, since the said 1st agent of Example 14 was less than 0.13, the remaining amount evaluation was considered to be 4. That is, it was thought that remaining amount evaluation improves by making the said ratio into a preferable range.

  The first agent of Example 9 contained no oily component solid at 25 ° C. except for the higher alcohol, but the residual amount evaluation was 5. On the other hand, even if a solid oil component is added at 25 ° C. excluding the higher alcohol, a good evaluation of the remaining amount can be obtained. Therefore, it is possible to realize an improvement in lightness by blending a solid oil component at 25 ° C. excluding a higher alcohol while obtaining a good evaluation of the remaining amount.

  Since the first agent of Example 10 contained only the higher fatty acid as an oily component solid at 25 ° C. excluding the higher alcohol, it was considered that the residual amount evaluation was 4. From this evaluation, it was suggested that there is a solid oily component at 25 ° C. excluding the preferable higher alcohol, from the viewpoint of improving the remaining amount evaluation.

[Equal dischargeability evaluation test]
One month after the product was manufactured, it was stored at 25 ° C., and then the discharging operation was continued until the remaining amount (mass) of the second agent became half of the filling amount. In addition, after product manufacture, the 1st agent and the 2nd agent are almost equally discharged.

  Measure the discharge amount of the first agent at the time when the remaining amount of the second agent becomes half of the filling amount (when the second agent is discharged by half), and the ratio to the discharge amount of the second agent is It calculated from the formula.

Discharge amount ratio of first agent to second agent = (first agent discharge amount when half amount of second agent is discharged) / (half amount of second agent)
As the ratio is closer to 1, the equal amount dischargeability of the first agent and the second agent is better.

The test was conducted in triplicate, and the average value was obtained, rounded to the first decimal place, and evaluated based on the following criteria. The evaluation results are described in the "equal amount dischargeability" column in the table.
5: ratio is 0.8 or more to 1.2 or less,
4: The ratio is 0.7 or more to less than 0.8, or more than 1.2 to 1.3 or less,
3: The ratio is 0.6 or more to less than 0.7, or more than 1.3 to 1.4 or less,
2: The ratio is 0.5 or more and less than 0.6, or more than 1.4 and 1.5 or less,
1: The ratio is less than 0.5 or more than 1.5.

  Each example was a good evaluation. Therefore, in each example, the discharge ratio of the first agent and the second agent was well maintained even after storage.

  From Example 14 to Example 20, it was shown that there is a nonionic surfactant / higher alcohol ratio that makes equal-time dischargeability better.

  The first agent of Example 2 and Example 3 and the second agent of Example 11 have a higher alcohol having a carbon number of 12 or less, or a carbon number of 20 or more relative to the total higher alcohol in each agent. It was thought that evaluation became 3-4 because it contained many. That is, it was shown that there is a preferable content ratio of the higher alcohol from the viewpoint of making the equal amount dischargeability with time better while maintaining a good residual amount evaluation.

  The second agent of Example 13 was considered to have a rating of 4 because it did not contain a nonionic surfactant having an HLB value of 10 or more. That is, it was shown that there is a preferable nonionic surfactant from the viewpoint of making the equal amount dischargeability with time better while maintaining a good residual amount evaluation.

  The first agent of Example 8 was considered to be evaluated as 4 because it contained only an anionic surfactant as an ionic surfactant. In addition, referring to the evaluations of other examples, it is considered preferable to contain a cationic surfactant from the viewpoint of making the equal amount dischargeability with time better while maintaining a good evaluation of the remaining amount. The

〔brightness〕
The oxidized hair dye composition according to each example of the present invention, which was discharged from the product and used according to a conventional method for human hair bundles, achieved good brightness.

  The 1st agent of this-application Example 9 does not contain an oily component solid at 25 degreeC except a higher alcohol. Therefore, the lightness evaluation was higher in the other examples than in the ninth example.

[Table 1]

[Table 2]

[Table 3]

[Table 4]

  The present application provides an aerosol-type hair cosmetic composition capable of reducing the remaining amount in the pouch container.

Double structure container 1
First inner container 2
Second inner container 3
Outer container 4
Valve unit 5
Dispenser 6
Discharge path 7

Claims (1)

An oxidative hair dye or composition comprising a first agent containing an alkaline agent (except for the first agent containing 0.1 to 10% by weight of alkali carbonate or alkanolamine) and a second agent containing an oxidizing agent An aerosol-type hair cosmetic composition which is a hair bleaching agent, comprising:
In the aerosol type hair cosmetic composition, a first inner container filled with the first agent and a second inner container filled with the second agent, which are independently provided, are accommodated in the same outer container, A space between the outer container and each of the inner containers is a propellant filled space filled with a propellant, and a dual structure container provided with a mechanism for simultaneously discharging the first agent and the second agent The contents of the vessel are used through the slit of the valve and the contents of the other inner vessel through the dip tube to fill the empty container (except for the double structure vessel to be discharged).
The first inner container and the second inner container are pouch containers formed by bonding sheet materials having a single layer or multilayer structure including a resin layer, and the innermost layer of the pouch container is a polyolefin resin layer,
The agent filled in the pouch container contains a nonionic surfactant and a higher alcohol, and the condition of non-ionic surfactant / higher alcohol = 0.13 to 0.60, which is a mass ratio content ratio , C 14-18 higher alcohol / total higher alcohol 0.7 0.7 (provided that the first agent contains 0.3 to 0.8% by mass of an anionic surfactant) ,
Aerosol hair cosmetic composition.