CN117898952A

CN117898952A - Cosmetic for aerosol-type dyeing or bleaching of hair

Info

Publication number: CN117898952A
Application number: CN202410091734.9A
Authority: CN
Inventors: 野尻昌良; 堀江优
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2015-12-28
Filing date: 2016-12-27
Publication date: 2024-04-19
Also published as: WO2017115821A1; TW201725029A; JP2017119695A; CN108366919A; TWI728025B; JP6857026B2

Abstract

The aerosol hair dyeing or bleaching cosmetic comprises an outer container which houses a first inner container and a second inner container, wherein the first inner container is filled with a first agent containing an alkaline agent, the second inner container is filled with a second agent containing hydrogen peroxide, a space between the outer container and each inner container is filled with a spraying agent with an internal pressure of 0.3-0.75 MPa, the bending rigidity E (f) and E(s) of a sheet forming the first and second inner containers are 0.15-3.0 gf cm ²/cm or less, the ratio E (f)/E(s) of E (f) to E(s) is 0.3 or more and 5.0 or less, the viscosity V (f) of the first agent is 14,700-145,000 mPas, the viscosity V(s) of the second agent is 9100-97,000 mPas, the ratio V (f)/V(s) is 1.6-4.9, and the mass M(s) in the second inner container to the mass M (f)/M (f) in the first inner container is 1.6-4.9, and the ratio M (f)/M(s) of the mass M (f) in the second inner container is 1.3.0.3 or more and 2.0 or less.

Description

Cosmetic for aerosol-type dyeing or bleaching of hair

(The present application is a divisional application of patent application having a date of application of 2016, 12 and 27, a number of application 201680074395.7 and a name of "cosmetic for aerosol dyeing or bleaching of hair")

Technical Field

The present invention relates to an aerosol-type hair dyeing or bleaching cosmetic.

Background

Conventionally, a dual structure container (hereinafter referred to as a "separate-filling-simultaneous pressurized-ejection dual structure container") has been proposed, which has a structure in which a first agent and a second agent of hair cosmetics are filled separately and simultaneously ejected by the same pressurized-ejection system. For example, patent document 1 and patent document 2 disclose such a double-structure container of separate filling-simultaneous pressurized ejection type.

These dual structure containers of separate filling-simultaneous pressurized ejection type are generally designed to simultaneously eject the same amount of the first agent and the second agent filled in the pouch, and the first agent and the second agent filled therein are also in a mass ratio of 1:1 are mixed after being equally sprayed out and applied to the hair. In this regard, patent document 3 discloses that the equivalent ejection properties of the first agent and the second agent are improved by adjusting the rheological properties.

(Patent document 1) Japanese patent document Kokai 2012-229318

(Patent document 2) Japanese patent document laid-open No. 2013-043659

(Patent document 3) Japanese patent document laid-open No. 2015-010087

Disclosure of Invention

The present invention provides an aerosol-type hair coloring or bleaching cosmetic comprising an outer container housing a first inner container filled with a first agent containing an alkaline agent and a second inner container filled with a second agent containing hydrogen peroxide, and

The space between the outer container and each inner container is filled with a propellant so that the internal pressure at 30 ℃ is 0.2MPa or more and 0.8MPa or less,

The first inner container and the second inner container are formed by bonding sheets of a multilayer structure having a polyolefin resin layer in the innermost layer, the bending rigidity E (f) of the sheets of the first inner container and the bending rigidity E(s) of the sheets of the second inner container are respectively 0.15gf cm ²/cm or more and 3.0gf cm ²/cm or less, the ratio E (f)/E(s) of E (f) to E(s) is 0.3 or more and 5 or less,

The first agent has a viscosity V (f) at 30 ℃ of 10,000 mPas to 145,000 mPas, the second agent has a viscosity V(s) at 30 ℃ of 8,000 mPas to 100,000 mPas, the ratio V (f)/V(s) of V (f) to V(s) is 1.5 to 5,

The ratio M (s)/M (f) of the mass M(s) of the second agent in the second inner container to the mass M (f) of the first agent in the first inner container is 1.2 or more and 3 or less.

Detailed Description

In order to enhance the hair dyeing effect or the decoloring effect, the most direct technical means is to enhance the decoloring power, wherein the effective method is to increase the hydrogen peroxide concentration in the second agent. However, in the case of a hair dye or a decolorizer of a dual structure container of a separate-filling-simultaneous pressurized-jetting type, if only the hydrogen peroxide concentration is increased, the liquid tightness of the inner container may be deteriorated, and there is a risk of liquid leakage with the passage of time. Accordingly, the inventors of the present invention have conducted intensive studies in order to increase the amount of hydrogen peroxide at the time of use and to increase the decoloring ability if the ratio of the amount of the second agent to the amount of the first agent to be discharged is increased. However, since the dual structure container of the separate filling-simultaneous pressurized discharge type is configured to simultaneously discharge the first agent and the second agent by using the discharge pressure of the same propellant, in particular, in the case where the first agent and the second agent of the hair cosmetic are relatively high-viscosity cream formulations, if the rheological properties (the discharge properties due to the flow at the time of pressurization) of each of the first agent and the second agent cannot be appropriately adjusted, the ratio of the discharge amounts of the first agent and the second agent cannot be controlled in practice. If the ratio of the set discharge amount is impaired to a certain extent or more, the set commercial value of the hair cosmetic in which the first and second doses are filled in the double-structured container cannot be achieved, and therefore, the ratio of the discharge amount needs to be stabilized.

Further, in the case of a hair cosmetic such as a two-part oxidative hair dye or a hair decolorizer, at least an alkaline agent (and an oxidative dye) is blended in the first agent, and an oxidizing agent is blended in the second agent. Due to such a limitation in composition, if the first agent and the second agent cannot be discharged all the time in a specific discharge amount ratio, the color tone changes due to a change in the mixing ratio of the first agent and the second agent, and thus the commodity value cannot be ensured. In addition, the ratio of the amount to be discharged must be stably achieved with the lapse of time, and it is not easy to confirm the composition design, container design, and the like of the first and second agents in addition to the rheological properties of the first and second agents.

Accordingly, the present invention relates to an aerosol-type hair coloring or bleaching cosmetic which can maintain the ratio of the discharge amount of a second agent to the discharge amount of a first agent and maintain the ratio of the discharge amount over time in a double-structure container of a separate-filled and pressurized-discharged type.

The inventors of the present invention have studied in an effort and found that: in a cosmetic for dyeing or bleaching hair using a dual-structure container of separate filling-simultaneous pressurized discharge type, the pressure of the propellant, the bending rigidity and material of the inner bag material, and the viscosity ratio of the first agent to the second agent are adjusted to specific ranges, respectively, whereby the ratio of the discharge amount of the second agent to the first agent can be set to a high value from the beginning to the end, and the high discharge amount ratio can be maintained with the passage of time.

In the present specification, the term "content in the mixture of the first agent and the second agent" means the content in the mixture in the case where the first agent and the second agent are ejected in a precisely set ratio of the ejection amount.

[ Outer container ]

The aerosol-type hair coloring or bleaching cosmetic according to the present invention comprises an outer container that houses a first inner container filled with a first agent containing an alkaline agent and a second inner container filled with a second agent containing hydrogen peroxide.

The outer container may be made of metal such as aluminum or tin plate, or synthetic resin such as polyethylene terephthalate or polyarylate.

In particular, in the case of using a synthetic resin as the outer container, a synthetic resin material having light transmittance is preferable. The outer container of the synthetic resin can be obtained by performing biaxial stretch blow molding in which a bottomed tubular semi-finished product obtained by extrusion molding is expanded by blowing air into the inside while stretching in the axial direction. In addition, the molding may be performed by direct blow molding, that is, by expanding a tubular semi-finished product, cutting the lower portion and bonding the lower portion to form the bottom portion. Further, in the outer container, carbon, alumina, silica, or the like may be formed in a gas state, and a vapor-deposited film may be provided on the inner surface and/or the outer surface.

[ Inner Container ]

The inner container of the present invention is formed by bonding a sheet having a multilayer structure in which a polyolefin resin is provided in the innermost layer. The inner container may be: and a bag pouch formed by overlapping the two sheets and bonding the edge portions by heat welding, ultrasonic welding, or the like. Examples of the polyolefin resin of the innermost layer include polyethylene resin (PE) and polypropylene resin (PP). The polyethylene resin is preferable from the viewpoint of easy formation of the inner bag and reduction of the remaining amounts of the first agent and the second agent in the respective inner containers.

In the present invention, the bending rigidity E (f) of the sheet of the first inner container and the bending rigidity E(s) of the sheet of the second inner container are preferably 0.15gf cm ²/cm or more and 3.0gf cm ²/cm or less, from the viewpoint of maintaining the ratio of the discharge amount of the first agent to the discharge amount of the second agent throughout, from the viewpoint of reducing the remaining amount of the first agent and the second agent in each inner container, from the viewpoint of controlling the deformation of the inner container when the content is contained within a proper range, preferably 0.2gf cm ²/cm or more, more preferably 0.4gf cm ²/cm or more, still more preferably 0.5gf cm ²/cm or more, still more preferably 0.6gf cm ²/cm or more, and from the viewpoint of keeping the inner container deformed with the discharge operation of the content, preferably 2.5gf cm ²/cm or less, more preferably 2.3gf cm or less, still more preferably 2.35 cm or less.

The ratio E (f)/E(s) of E (f) to E(s) is preferably 0.4 or more, more preferably 0.5 or more, from the viewpoint of maintaining the ratio of the amounts of the first agent and the second agent to be discharged from the respective inner containers throughout, from the viewpoint of reducing the residual amounts of the first agent and the second agent to be discharged from the respective inner containers, and from the viewpoint of reducing the residual amounts of the first agent and the second agent to be discharged from the respective inner containers, preferably 4 or less, more preferably 3.3 or less, more preferably 3 or less, more preferably 2.5 or less, more preferably 2.2 or less, and even more preferably 2 or less.

The bending rigidity of the sheet material can be measured using a KES (Kawabata Evaluation System, sichuan end evaluation system) bending tester or the like (for example, a multifunctional pure bending tester KES-FB2-S (manufactured by Kato Tech Co.).

The sheet having a multilayer structure in which the innermost layer constituting the first inner container has a polyolefin resin layer is preferably provided with an outermost layer and an intermediate layer from the viewpoint of achieving both moderate bending rigidity and low breakage of the sheet.

The outermost layer may be polyamide such as Nylon (NY), polyester such as polyethylene terephthalate (PET), or the like. As the intermediate layer, a metal foil is preferably used, and as the metal foil, a light metal such as aluminum foil (Al foil) is exemplified.

The combination of the outermost layer, the intermediate layer, and the innermost layer of the sheet of the first inner container may be appropriately selected according to the content, and examples thereof include, in the order of the outermost layer/intermediate layer/innermost layer: PE/Al foil/PE, PP/Al foil/PE, PET/Al foil/PE, NY/Al foil/PE, etc. The sheet of the first inner container may have a double layer structure in which the outermost layer is omitted, or may have a structure in which four or more layers are further provided with an intermediate layer.

The sheet having a multilayer structure in which the innermost layer constituting the second inner container has a polyolefin resin layer is preferably provided with an outermost layer and an intermediate layer from the viewpoint of achieving both moderate bending rigidity and low breakage of the sheet.

As the outermost layer, polyamide such as Nylon (NY) and polyester such as polyethylene terephthalate (PET) can be mentioned, as in the sheet of the first inner container. Examples of the intermediate layer include a synthetic resin layer having gas barrier properties and chemical resistance such as polyamide such as ethylene-vinyl alcohol copolymer (EVOH) and Nylon (NY), and a nonmetallic layer such as a vapor-deposited layer formed by vapor-depositing silicon oxide (SiOX) on the outermost layer or the innermost layer.

The combination of the outermost layer, the intermediate layer, and the innermost layer of the sheet of the second inner container may be appropriately selected according to the content, and for example, ：PE/EVOH/PE、PP/EVOH/PE、PET/EVOH/PE、PE/NY/PE、PP/NY/PE、PET/NY/PE、PE/SiOX/PE、PP/SiOX/PE、PET/SiOX/PE、PE/Al₂O₃/PE and the like are listed in the order of the outermost layer, the intermediate layer, and the innermost layer. From the viewpoint of both ease of formation and low breakage, it is more preferable to use a synthetic resin layer for the intermediate layer. The sheet material of the second inner container may have a double layer structure in which the outermost layer is omitted, or may have four or more layers in which a synthetic resin layer or a nonmetallic gas barrier layer is further optionally provided. In the case where the outer container is translucent, the second inner container is preferably translucent.

[ Internal pressure ]

The space between the outer container and each inner container is filled with the propellant so that the internal pressure at 30 ℃ is 0.2MPa or more and 0.8MPa or less. The internal pressure is preferably 0.3MPa or more, more preferably 0.4MPa or more, still more preferably 0.5MPa or more from the viewpoint of ensuring an easily handled discharge amount, from the viewpoint of maintaining the ratio of the discharge amount of the first agent to the discharge amount of the second agent throughout, and from the viewpoint of reducing the remaining amount of the first agent and the second agent in each inner container, and is preferably 0.75MPa or less, more preferably 0.7MPa or less from the viewpoint of suppressing the risk of cracking of the outer container at high temperature from the viewpoint of maintaining the ratio of the discharge amount of the first agent to the discharge amount of the second agent throughout.

The internal pressure at 30 ℃ can be measured using, for example, a bourdon tube type pressure gauge, a strain gauge type pressure gauge, a flush diaphragm (flush diaphragm) type pressure gauge, or the like (specifically, the instrument described in the examples).

Examples of the propellant to be filled include: and liquefied gases such as nitrogen, compressed air, carbon dioxide, and nitrous oxide, liquefied petroleum gas, and hydrofluoroolefins.

[ Viscosity ]

The viscosity V (f) of the first agent at 30 ℃ in the first inner container is preferably 15,000mpa·s or more, more preferably 30,000mpa·s or more, from the viewpoint of preventing sagging of the agent when applied to the hair, and the ratio of the second agent to the ejection amount is set to a specific range, and is preferably 140,000mpa·s or less, more preferably 120,000mpa·s or less, more preferably 75,000mpa·s or less, more preferably 69,000mpa·s or less, and further preferably 60,000mpa·s or less, from the viewpoint of easily spreading the agent when applied to the hair, the ratio of the first agent to the ejection amount is set to a specific range, the residual amount of the first agent in the inner container is reduced, and the miscibility with the second agent is good. The viscosity V(s) of the second agent at 30 ℃ in the second inner container is preferably 9,000mpa·s or more, more preferably 12,000mpa·s or more, further preferably 15,000mpa·s or more, from the viewpoint of preventing sagging of the agent when applied to the hair, and from the viewpoint of improving the miscibility with the first agent, from the viewpoint of easily spreading the agent when applied to the hair, from the viewpoint of spraying the second agent from the inner container to the end, and from the viewpoint of improving the miscibility with the first agent, from the viewpoint of easily spreading the agent when applied to the hair, and from the viewpoint of improving the second agent spray rate to the end.

The ratio V (f)/V(s) of V (f) to V(s) is 1.5 or more and 5 or less, preferably 1.6 or more, more preferably 1.7 or more, still more preferably 1.8 or more, still more preferably 2 or more, from the viewpoint of maintaining the ratio of the ejection amounts of the first agent and the second agent throughout, and from the viewpoint of reducing the residual amounts of the first agent and the second agent in the respective inner containers, preferably 4.5 or less, more preferably 4 or less, still more preferably 3.5 or less, and still more preferably 3 or less.

The viscosities of the first and second agents at 30℃can be measured using a type B viscometer. Further, the viscosity at 30 ℃ of the first agent contained in the first inner container and the second agent contained in the second inner container may be measured by taking out each inner container from the outer container, taking out the first agent and the second agent from each inner container, and then using a B-type viscometer. Specifically, the measurement can be performed by the method described in the examples.

[ Mass ratio ]

The ratio M (s)/M (f) of the mass M(s) of the second agent in the second inner container to the mass M (f) of the first agent in the first inner container is 1.2 or more, preferably 1.3 or more, more preferably 1.45 or more, from the viewpoint of maintaining the ratio of the ejection amount of the first agent to the ejection amount of the second agent throughout, and is 3 or less, preferably 2.5 or less, more preferably 1.8 or less, from the viewpoint of reducing hair damage or irritation to the scalp.

[ Alkaline Agents ]

The first agent contains an alkaline agent. As the alkaline agent, there may be mentioned: ammonia and salts thereof (e.g., ammonium bicarbonate); alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol and 2-aminobutanol, and salts thereof; alkane diamine such as 1, 3-propane diamine and salts thereof; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogencarbonate and potassium hydrogencarbonate. Two or more of these alkaline agents may be used in combination. The content of the alkaline agent in the first agent is preferably 0.1 mass% or more, more preferably 0.2 mass% or more, further preferably 0.4 mass% or more, from the viewpoint of sufficiently swelling hair to obtain a hair dyeing effect, and is preferably 14 mass% or less, more preferably 12 mass% or less, further preferably 8 mass% or less, from the viewpoint of reducing hair damage or irritation to scalp. The content of the alkaline agent in the mixture of the first agent and the second agent is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, further preferably 0.2% by mass or more, further preferably 0.5% by mass or more, further preferably 1% by mass or more, from the viewpoint of a sufficient hair dyeing effect, and is preferably 7% by mass or less, more preferably 6% by mass or less, further preferably 5% by mass or less, further preferably 4% by mass or less, from the viewpoint of reducing hair damage or irritation to the scalp.

Hydrogen peroxide

The second agent contains hydrogen peroxide. The content of hydrogen peroxide in the second agent is preferably 1 mass% or more, more preferably 3 mass% or more, from the viewpoint of decomposing hair melanin and securing a coupling reaction of an oxidation dye to obtain a sufficient dyeing effect, and is preferably 9 mass% or less, more preferably 6 mass% or less, from the viewpoint of reducing hair damage or irritation to scalp. The content of hydrogen peroxide in the mixture of the first agent and the second agent is preferably 1% by mass or more, more preferably 2% by mass or more, and further preferably 6% by mass or less, more preferably 5% by mass or less.

[ Surfactant ]

The surfactant may be contained in either the first agent, the second agent, or both. Examples of the surfactant include: cationic surfactants, nonionic surfactants, amphoteric surfactants, and anionic surfactants. Among these, anionic surfactants and nonionic surfactants are preferable from the viewpoint of stability of the formulation composition.

As the anionic surfactant, there may be mentioned: alkylbenzene sulfonate, alkyl ether sulfate, alkenyl ether sulfate, alkyl sulfate, alkenyl sulfate, alkene sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salts, alkyl ether carboxylate, alkenyl ether carboxylate, alpha-sulfofatty acid salt, N-acyl amino acid salt, phosphoric monoester or diester, sulfosuccinate, and the like. As the alkyl ether sulfate, polyoxyethylene alkyl ether sulfate may be mentioned. As counter ions (counter ions) of the anionic groups of these anionic surfactants, there may be mentioned: alkali metal ions such as sodium ions and potassium ions; alkaline earth metal ions such as calcium ion and magnesium ion; an ammonium ion; alkanolamine salts having 1 to 3 alkanolamine groups having 2 or 3 carbon atoms (e.g., monoethanolamine salt, diethanolamine salt, triethanolamine salt, triisopropanolamine salt, etc.).

The cationic surfactant is preferably monoalkyl trimethyl ammonium chloride, dialkyl dimethyl ammonium chloride or monoalkyl trimethyl ammonium bromide, more preferably stearyl trimethyl ammonium chloride (Steartrimoniumchloride), cetyl trimethyl ammonium chloride (Cetrimonium chloride) or lauryl trimethyl ammonium chloride (Lauryl Trimonium chloride), and even more preferably two or more of them are mixed from the viewpoint of imparting an excellent feel to the hair after dyeing.

As the nonionic surfactant, there may be mentioned: polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, higher fatty acid sucrose ester, polyglycerin fatty acid ester, higher fatty acid monoethanolamide or higher fatty acid diethanolamide, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, alkyl saccharide, alkyl amine oxide, alkyl amide amine oxide, and the like. Among these, polyoxyalkylene alkyl ethers, polyoxyethylene hydrogenated castor oil, and alkyl saccharides are preferable, and polyoxyethylene alkyl (12 to 14) ethers and alkyl polyglucosides are more preferable.

As the amphoteric surfactant, there may be mentioned: imidazoline, carbonyl betaine, amidobetaine, sulfobetaine, hydroxysulfobetaine, amidosulfobetaine, and the like, more preferably betaine surfactants such as alkyl dimethylaminoacetic acid betaine and fatty amidopropyl betaine, and still more preferably fatty amidopropyl betaine.

These surfactants may be used either singly or in combination of two or more. The content of the surfactant in the mixture of the first agent and the second agent is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, further preferably 0.5% by mass or more, from the viewpoint of good touch feeling and emulsifying property, and is preferably 30% by mass or less, more preferably 25% by mass or less, further preferably 20% by mass or less, further preferably 10% by mass or less, further preferably 5% by mass or less, from the viewpoint of obtaining a sufficient hair dyeing effect.

[ Higher alcohols ]

The higher alcohol may be contained in either or both of the first agent and the second agent. As the higher alcohol, a compound represented by the following general formula (1) can be used.

R-OH(1)

[ Wherein R represents a linear or branched hydrocarbon group having 12 to 24 carbon atoms. ]

Examples of the higher alcohol include: lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, lignoceryl alcohol, oleyl alcohol, and the like. For the higher alcohol, two or more kinds may be used singly or in combination.

The higher alcohol is preferably a combination of (1 a) a higher alcohol in which R in the general formula (1) is a linear alkyl group having 12 to 18 carbon atoms and (1 b) a higher alcohol in which R in the general formula (1) is a linear alkyl group having 20 to 24 carbon atoms, more preferably (1 a) a higher alcohol in which R in the general formula (1) is a linear alkyl group having 14 to 18 carbon atoms and (1 b) a higher alcohol in which R in the general formula (1) is a linear alkyl group having 20 to 22 carbon atoms, from the viewpoint of suppressing a change in viscosity with time. Regarding the mass ratio of component (1 a) to component (1 b) [ (1 a): (1b) From the viewpoint of suppressing the viscosity change with time, it is preferably 0.5:9.5 to 9.5:0.5, more preferably 1:9 to 9:1, further preferably 1.5:8.5 to 8.5:1.5, further preferably 1: 4-4: 1.

The content of the higher alcohol in the mixture of the first agent and the second agent is preferably 3% by mass or more, more preferably 4% by mass or more, further preferably 5% by mass or more, from the viewpoint of suppressing the viscosity change with time, in which the viscosity immediately after production is in a range suitable for use as a hair dye, and is preferably 12% by mass or less, more preferably 11% by mass or less, further preferably 10% by mass or less, further preferably 9% by mass or less.

[ Hydrocarbon ]

The hydrocarbon may be contained in either the first agent, the second agent, or both. The hydrocarbon may be used alone or in combination of two or more. The hydrocarbons of the present invention include: liquid paraffin, liquid isoalkane, light liquid isoalkane, heavy liquid isoalkane, squalane, etc. Among these, liquid paraffin is preferable from the viewpoint of suppressing the viscosity change with time.

The content of the hydrocarbon in the mixture of the first agent and the second agent is preferably 1% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, and further preferably 20% by mass or less, more preferably 15% by mass or less, further preferably 10% by mass or less, further preferably 8% by mass or less, from the viewpoint of improving the brightness after dyeing or bleaching of hair.

[ Ester oil ]

The ester oil may be contained in either the first agent, the second agent, or both. The ester oil may be used alone or in combination of two or more. The ester oils of the present invention include: octyl dodecanoate, isopropyl myristate, isopropyl isostearate, isononyl isononanoate, isotridecyl isononanoate, butyl stearate, oleic acid ester, octyl dodecanoate, neopentyl glycol dicaprate, diisostearyl malate, octyl hydroxystearate, macadamia nut oil, olive oil, castor oil, jojoba oil, avocado oil, sunflower seed oil, polyglycerol diisostearate, polyglycerol triisostearate, glycerol diisostearate, glycerol triisostearate, glycerol tris (caprylic/capric) ate, glycerol tris (2-ethylhexanoate), pentaerythritol tetraoctoate, and the like. Among these, from the viewpoint of high emulsion stability, the following substances are preferable, which are branched alcohol esters of saturated fatty acids: isopropyl myristate, isopropyl isostearate, diisostearyl malate, isononyl isononanoate, isotridecyl isononanoate, 2-ethylhexyl palmitate, octyl dodecyl myristate, octyl dodecyl oleate, octyl dodecyl erucate, and the like.

The content of the ester oil in the mixture of the first agent and the second agent is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, in terms of improving the brightness after dyeing or bleaching of hair, and is preferably 5% by mass or less, more preferably 3% by mass or less, further preferably 2% by mass or less, in terms of sufficient ductility of the mixture on hair.

[ Organic solvent ]

The organic solvent may be contained in either or both of the first agent and the second agent. The organic solvents include: lower alkanols such as ethanol, 1-propanol and 2-propanol; aromatic alcohols such as benzyl alcohol, 2-benzyloxy ethanol, and phenoxy ethanol; polyhydric alcohols such as propylene glycol, 1, 3-butanediol, diethylene glycol, and glycerin; ether alcohols such as ethoxyethanol, ethoxydiglycol, and methoxyethanol; n-alkylpyrrolidones such as N-methylpyrrolidone and N-ethylpyrrolidone; alkylene carbonate such as propylene carbonate; lactones such as gamma-valerolactone and gamma-caprolactone.

These organic solvents may be used alone or in combination of two or more, and the content of the organic solvents in the mixture of the first agent and the second agent is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, from the viewpoint of preventing the oxidation dye from precipitating from the mixture of the first agent and the second agent, and is preferably 35% by mass or less, more preferably 30% by mass or less, still more preferably 25% by mass or less, still more preferably 20% by mass or less, still more preferably 15% by mass or less, still more preferably 10% by mass or less, from the viewpoint of preventing the mixture from separating into the aqueous phase layer and the oil phase layer.

[ Dye ]

In the case where the aerosol hair coloring or hair bleaching cosmetic of the present invention is a hair coloring cosmetic, the first agent contains an oxidation dye intermediate or a direct dye.

(Oxidation dye intermediate)

As the oxidation dye intermediate, a known precursor (precursor) and a coupler (coupler) which are generally used in hair dyes can be used. Examples of the precursor include: p-phenylenediamine, toluene-2, 5-diamine, o-chloro-p-phenylenediamine, N-phenyl-p-phenylenediamine, N-bis (hydroxyethyl) p-phenylenediamine, 3-methyl-4-aminophenol, 2-hydroxyethyl-p-phenylenediamine, p-aminophenol, p-methylaminophenol, 4-amino-m-cresol, o-aminophenol, salts thereof, and the like.

Examples of the color former include: resorcinol, 2-methylresorcinol, 1-naphthol, 1, 5-dihydroxynaphthalene, 5-amino-o-cresol, m-phenylenediamine, o-aminophenol, m-aminophenol, p-aminophenol, 2, 4-diaminophenoxyethanol, 2, 6-diaminopyridine, 2-methyl-5-hydroxyethylaminophenol, 2-amino-3-hydroxypyridine, salts thereof, and the like.

The precursor and the color former may be used singly or in combination of two or more. The content of each of the precursor and the color former in the first agent is preferably 0.01 mass% or more, more preferably 0.1 mass% or more, and further preferably 5 mass% or less, more preferably 4 mass% or less.

(Direct dye)

As the direct dye, there may be mentioned: acid dyes, nitro dyes, disperse dyes, basic dyes, and the like. More specifically, as the acid dye, there may be mentioned: examples of the nitro dyes include blue No. 1, violet No. 401, black No. 401, orange No. 205, red No. 227, red No. 106, yellow No. 202 (1), yellow No. 202 (2), yellow No. 203, and acid orange 3: examples of the disperse dye include 2-nitrop-phenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitrop-hydroxyethyl aminophenol, 4-nitroo-phenylenediamine, 4-amino-3-nitrophenol, 4-hydroxypropyl amino-3-nitrophenol, HC blue 2, HC orange 1, HC red 1, HC yellow 2, HC yellow 4, HC yellow 5, HC red 3, N-bis (2-hydroxyethyl) -2-nitrop-phenylenediamine, and the like: disperse violet 1, disperse blue 1, disperse black 9, and the like, and as basic dyes, there are listed: basic blue 99, basic brown 16, basic brown 17, basic red 76, basic yellow 76, basic orange 31, basic red 51, etc.

The direct dye may be used alone or in combination of two or more kinds, or may be used in combination with an oxidation dye intermediate. The content of the direct dye in the first agent is preferably 0.001 mass% or more, more preferably 0.01 mass% or more, and further preferably 5 mass% or less, more preferably 3 mass% or less.

[ Other optional Components ]

In addition to the above components, other components generally used as raw materials of cosmetics may be added to the first or second agent of the aerosol hair coloring or hair bleaching cosmetic of the present invention. Examples of such optional components include: oils, polysiloxanes, nonvolatile hydrophilic solvents, animal and vegetable oils, natural or synthetic polymers, ethers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, crude drug extracts, vitamins, perfumes, ultraviolet absorbers, etc.

[ PH value ]

The pH (25 ℃) of the first agent is preferably 8 or more and 12 or less. From the viewpoint of stability of hydrogen peroxide, the pH (25 ℃) of the second agent is preferably 2 or more and 5 or less. Further, the pH (25 ℃) of the mixture of the first agent and the second agent at the time of use is preferably 8.0 or more, more preferably 8.5 or more, further preferably 9.0 or more, from the viewpoint of swelling hair and obtaining a sufficient dyeing effect, and is preferably 11.5 or less, more preferably 11.0 or less, further preferably 10.5 or less, from the viewpoint of preventing irritation to the scalp. In the present invention, the pH was measured at room temperature (25 ℃) using a pH meter F-22 manufactured by horiba, ltd.

[ Hair dyeing tool ]

The aerosol-type hair coloring or bleaching cosmetic composition of the present invention can be applied to hair using a hair coloring tool. As the hair dyeing tool, a hair dyeing tool having a comb part and a bristle part as described in japanese patent laid-open No. 10-71020, or a hair dyeing tool having a comb part and a bristle part (the bristle part having a recess for holding a preparation) as described in japanese patent laid-open No. 2006-326081 can be used.

Dosage form

The dosage forms of the first and second agents may be in the form of a cream, gel, paste, or the like.

[ Hair dyeing or Hair bleaching method ]

In the aerosol hair coloring or bleaching cosmetic of the present invention, the first and second agents are discharged into a mixing tray prepared in advance, the first agent and the second agent are mixed with the brush part of a hair coloring tool as described in japanese patent application laid-open No. 10-71020, and the obtained mixture is applied to the hair, whereby the hair can be dyed or decolorized.

In addition, in the aerosol hair coloring or hair bleaching cosmetic of the present invention, the first agent and the second agent are ejected into the concave portions of the bristle parts of the hair coloring tool as described in japanese patent laying-open No. 2006-326081, and the bristle parts are directly applied to the hair, whereby the first agent and the second agent can be mixed with each other on the hair and spread on the whole hair, thereby dyeing or bleaching the hair.

The preferred embodiments of the present invention are described further below with respect to the embodiments described above.

< 1> An aerosol-type hair coloring or bleaching cosmetic comprising an outer container housing a first inner container filled with a first agent containing an alkaline agent and a second inner container filled with a second agent containing hydrogen peroxide, and

The aerosol-type hair coloring or bleaching cosmetic composition as described in < 2 > or < 1 >, wherein the polyolefin resin of the innermost layer of the first inner container and the second inner container is preferably a polyethylene resin or a polypropylene resin.

The cosmetic for aerosol hair dyeing or hair bleaching described in < 3 > as < 1> or < 2 > is preferably 0.2gf cm ²/cm or more, more preferably 0.4gf cm ²/cm or more, still more preferably 0.5gf cm ²/cm or more, still more preferably 0.6gf cm ²/cm or more, still more preferably 2.5gf cm ²/cm or less, still more preferably 2.3gf cm ²/cm or less, still more preferably 2.1gf cm ²/cm or less, still more preferably 2.0gf cm ²/cm or less.

The cosmetic for aerosol hair dyeing or hair bleaching of any one of < 4 > and < 1 > to < 3 >, wherein the ratio E (f)/E(s) of E (f) to E(s) is preferably 0.4 or more, more preferably 0.5 or more, and further preferably 4 or less, more preferably 3.3 or less, further preferably 3 or less, further preferably 2.5 or less, further preferably 2.2 or less, further preferably 2 or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 5 > to < 1 > to < 4 >, wherein the sheet having a multilayer structure constituting the first inner container preferably has an outermost layer and an intermediate layer, the outermost layer being polyamide or polyester, and the intermediate layer being a metal foil.

The cosmetic for aerosol hair dyeing or hair bleaching of < 6 > according to any one of < 1 > to < 5 >, wherein the sheet having a multilayer structure constituting the second inner container preferably has an outermost layer and an intermediate layer, the outermost layer being polyamide or polyester, and the intermediate layer being a synthetic resin layer or a silicon oxide vapor-deposited layer having gas barrier properties and chemical resistance properties.

The cosmetic for aerosol hair dyeing or hair bleaching of < 7 > as defined in any one of < 1 > to < 6 >, wherein the internal pressure at 30℃is preferably 0.3MPa or more, more preferably 0.4MPa or more, still more preferably 0.50MPa or more, and further preferably 0.75MPa or less, more preferably 0.70MPa or less.

The cosmetic for aerosol hair dyeing or hair bleaching of < 8 > as defined in any one of < 1 > to < 7 >, wherein V (f) is preferably 15,000 mPas or more, more preferably 30,000 mPas or more, further preferably 140,000 mPas or less, more preferably 120,000 mPas or less, further preferably 75,000 mPas or less, further preferably 69,000 mPas or less, further preferably 60,000 mPas or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 9 > to < 1 > to < 8 >, wherein V(s) is preferably 9,000 mPas or more, more preferably 12,000 mPas or more, further preferably 15,000 mPas or more, further preferably 90,000 mPas or less, more preferably 80,000 mPas or less, further preferably 60,000 mPas or less, further preferably 40,000 mPas or less.

The cosmetic for aerosol hair dyeing or hair bleaching of < 10 > as defined in any one of < 1 > to < 9 >, wherein V (f)/V(s) is preferably 1.6 or more, more preferably 1.7 or more, more preferably 1.8 or more, more preferably 2 or more, and further preferably 4.5 or less, more preferably 4 or less, more preferably 3.5 or less, more preferably 3 or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 11 > to < 1 > to < 10 >, wherein M (s)/M (f) is preferably 1.3 or more, more preferably 1.45 or more, and further preferably 2.5 or less, more preferably 1.8 or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 12 > to < 1 > to < 11 >, wherein the cosmetic further preferably contains a surfactant in either or both of the first and second agents.

The cosmetic for aerosol hair dyeing or hair bleaching as described in < 13 > and < 12 >, wherein the surfactant is preferably one or more selected from the group consisting of cationic surfactants, nonionic surfactants, amphoteric surfactants and anionic surfactants.

The cosmetic for aerosol hair coloring or hair bleaching described in < 14 > or < 12 > or < 13 > wherein the content of the surfactant in the mixture of the first agent and the second agent is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and further preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, still more preferably 10% by mass or less, and still more preferably 5% by mass or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 15 > and < 1 > to < 14 >, wherein the cosmetic further comprises a higher alcohol in either one of the first and second preparations or both of the first and second preparations.

A cosmetic for aerosol hair dyeing or hair bleaching as described in < 16 > or < 15 >, wherein the higher alcohol is preferably a compound represented by the following general formula (1),

R-OH(1)

Wherein R represents a linear or branched hydrocarbon group having 12 to 24 carbon atoms.

The cosmetic for aerosol hair coloring or hair bleaching described in < 17 > and < 16 > wherein the higher alcohol is preferably a combination of (1 a) a higher alcohol wherein R is a linear alkyl group having 12 to 18 carbon atoms and (1 b) a higher alcohol wherein R is a linear alkyl group having 20 to 24 carbon atoms, more preferably a combination of (1 a) a higher alcohol wherein R is a linear alkyl group having 14 to 18 carbon atoms and (1 b) a higher alcohol wherein R is a linear alkyl group having 20 to 22 carbon atoms.

An aerosol-type hair coloring or bleaching cosmetic composition as described in < 18 > and < 17 >, wherein the mass ratio of component (1 a) to component (1 b) [ (1 a): (1 b) ] is preferably 0.5:9.5 to 9.5:0.5, more preferably 1:9 to 9:1, further preferably 1.5:8.5 to 8.5:1.5, further preferably 1: 4-4: 1.

The cosmetic for aerosol hair dyeing or hair bleaching of any one of < 19 > to < 15 > to < 18 >, wherein the content of the higher alcohol in the mixture of the first agent and the second agent is preferably 3% by mass or more, more preferably 4% by mass or more, further preferably 5% by mass or more, further preferably 12% by mass or less, more preferably 11% by mass or less, further preferably 10% by mass or less, further preferably 9% by mass or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 20 > and < 1 > to < 19 >, wherein the cosmetic further preferably contains a hydrocarbon in either one of the first agent and the second agent or both of them.

The cosmetic for aerosol hair coloring or hair bleaching described in < 21 > and < 20 > wherein the hydrocarbon content in the mixture of the first agent and the second agent is preferably 1% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, and further preferably 20% by mass or less, more preferably 15% by mass or less, further preferably 10% by mass or less, further preferably 8% by mass or less.

A cosmetic for aerosol hair dyeing or hair bleaching as described in any one of < 22 > and < 1 > to < 21 >, wherein the cosmetic further preferably contains an ester oil in either one of the first and second agents or in both of them.

The aerosol hair coloring or hair bleaching cosmetic composition described in < 23 > and < 22 > wherein the content of the ester oil in the mixture of the first and second agents is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, and further preferably 5% by mass or less, more preferably 3% by mass or less, and further preferably 2% by mass or less.

The cosmetic for aerosol hair dyeing or hair bleaching of < 24 > as defined in any one of < 1 > to < 23 >, wherein the content of the alkaline agent in the first agent is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.4% by mass or more, and further preferably 14% by mass or less, more preferably 12% by mass or less, still more preferably 8% by mass or less.

The cosmetic for aerosol hair dyeing or hair bleaching of < 25 > as defined in any one of < 1 > to < 24 >, wherein the content of hydrogen peroxide in the second agent is preferably 1% by mass or more, more preferably 3% by mass or more, and further preferably 9% by mass or less, more preferably 6% by mass or less.

Examples (example)

Next, examples and comparative examples of the present invention will be described. The technical scope of the present invention is not limited to the following examples and comparative examples.

< Examples 1 to 39 and comparative examples 1 to 14>

According to the usual method, a first dose of formulations 1-1 to 1-11 of the composition shown in Table 6 of end of document and a second dose of 2-1 to 2-11 of the composition shown in Table 7 were prepared. Both of these first and second formulations are emulsified cream formulations. In each table, the numerical value indicating the content of each component is a numerical value in mass% unit in the first agent or the second agent.

The first and second doses were filled into the first and second inner containers of the dual structure container of the separate filling-simultaneous pressurized discharge type in a combination manner shown in tables 1 to 5, and the following measurement and evaluation were performed.

[ Sheet of first inner Container and second inner Container ]

The first inner container uses as sheet material a material of PET/Al foil/PE in the order of outermost/middle/innermost. In addition, the second inner container uses a material of PET/NY/PE in the order of outermost layer/intermediate layer/innermost layer as a sheet. In addition, nitrogen was used as the propellant for the filling.

[ Measurement of viscosity ]

A B-shaped viscometer (model TVB-10R, T-BAR STAGE TS-10 manufactured by Dong machine industries, inc.) with a screw rack was used for the viscosity at 30℃of the first dose contained in the first inner container and the second dose contained in the second inner container. Specifically, the outer container is cut by a cutter, and then the first and second inner containers are cut by scissors, and the first and second doses are taken out. After the obtained first and second agents were left for 1 day, the value obtained by rotating the main shaft No. M4 at 30℃for 1 minute at 12rpm was obtained if the first agent was less than 50,000 mPas, and the value obtained by rotating the main shaft No. T-C at 30℃for 1 minute at 10rpm was obtained if the first agent was 50,000 mPas or more. The measurement was performed in the order of the main axes No. M4 and T-C, and the measurement was ended at the time when the display value did not exceed the display range and the measurement was completed, and the measurement thereafter was not performed.

In each table, "V (f)/V(s)" represents the value of the ratio "V (f)/V(s)" of V (f) of the first agent to V(s) of the viscosity of the second agent measured by the above measurement method.

[ Initial discharge amount ]

The first and second agents in the form of creams described in tables 6 to 7 were filled into a double-structured container of separate filling-simultaneous pressurized discharge type in a mass ratio shown in tables 1 to 5, with a total of 80 g. Thereafter, the mixture was immersed in a constant temperature bath at 30℃for 30 minutes, and then the first and second doses were simultaneously discharged for 5 seconds, whereby the discharge amounts of the respective doses were measured.

[ Proportion of the amount to be discharged ]

The first and second agents in the form of creams described in tables 6 to 7 were filled into separate-filling-simultaneous pressurized-ejection double-structure containers in a total of 80g at the mass ratio shown in tables 1 to 5, respectively. Thereafter, the first and second doses were immersed in a constant temperature bath at 30 ℃ for 30 minutes, and the simultaneous discharge was repeated, and the discharge amount of the first dose was measured every time the second dose was discharged by 25 mass% of the known amount of the filling, and the simultaneous discharge was stopped at the time of discharging the entire amount of the filling. The ratio of the measured discharge amount of the second dose with respect to the discharge amount of the first dose is shown in the column of "ratio of discharge amount" of each table.

[ Evaluation test of residual amount ]

The first and second agents in the form of creams described in tables 6 to 7 were filled into separate-filling-simultaneous pressurized discharge-type double-structure containers in a total of 80g (mass before discharge) at the mass ratios shown in tables 1 to 5, respectively. The ejection operation is performed until the first or second agent contained in the container cannot be ejected (full ejection), and the mass of the first and second agents remaining in the inner container after the full ejection (mass after the full ejection) is measured. Specifically, the outer container is cut by a cutter, the first and second inner containers are cut by scissors, the first and second agents remaining in the respective inner containers are taken out, and the mass is measured. The remaining amount ratio in the inner container was calculated for the first and second doses by the following formula.

Residual amount ratio (%) = (mass after full ejection)/(mass before ejection) ×100

[ Measurement of internal pressure ]

The internal pressure at 30℃was measured using WGA-710c (manufactured by Co., ltd.) as a regulator for the instrument and PGM-10KEZ1 (manufactured by Co., ltd.) as a small-sized pressure transducer. When the pressure introducing part of the small-sized pressure converter is held for a predetermined time by pressing the pressing rod part of the outer container of the double-structured container for separate filling and pressurized ejection at the same time, the pressure introducing part is set to be an internal pressure.

[ Measurement of flexural rigidity ]

The bending rigidity of the sheet was measured at 20℃using a multifunctional pure bending tester KES-FB2-S (manufactured by Kato Tech Co.). Specifically, the multilayered sheet used in the inner container was cut into a shape of 2cm in the longitudinal direction and 4cm in the transverse direction. The cut sheet was sandwiched between a fixed chuck and a movable chuck of the tester. Next, the maximum curvature of the tester was set to 2.5cm ^-1, and the number of cycles was set to 2 times, and the measurement was performed. The slope of the bending moment-curvature curve was obtained from each value when the curvature was 0.5cm ^-1 and 1.5cm ^-1, respectively, and the value was set as the bending rigidity.

TABLE 1

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Claims

1. An aerosol-type hair coloring or bleaching cosmetic, wherein,

The aerosol-type hair coloring or bleaching cosmetic comprises an outer container which houses a first inner container filled with a first agent containing an alkaline agent and a second inner container filled with a second agent containing hydrogen peroxide, and

The space between the outer container and each inner container is filled with a propellant so that the internal pressure at 30 ℃ is 0.3MPa or more and 0.75MPa or less,

The first inner container and the second inner container are formed by bonding sheets of a multilayer structure having a polyolefin resin layer in the innermost layer, the bending rigidity E (f) of the sheets of the first inner container and the bending rigidity E(s) of the sheets of the second inner container are respectively 0.15gf cm ²/cm or more and 3.0gf cm ²/cm or less, the ratio E (f)/E(s) of E (f) to E(s) is 0.3 or more and 5.0 or less,

The first agent has a viscosity V (f) at 30 ℃ of 14,700 to 145,000 mPas, the second agent has a viscosity V(s) at 30 ℃ of 9100 to 97,000 mPas, the ratio V (f)/V(s) of V (f) to V(s) is 1.6 to 4.9,

The ratio M (s)/M (f) of the mass M(s) of the second agent in the second inner container to the mass M (f) of the first agent in the first inner container is 1.2 or more and 3.0 or less,

The second agent and the first agent are ejected at a mass ratio M (s)/M (f) of 1.2 or more and 3.0 or less.

2. The aerosol hair coloring or bleaching cosmetic according to claim 1, wherein,

The polyolefin resin of the innermost layer of the first inner container and the second inner container is polyethylene resin.

3. The aerosol hair coloring or bleaching cosmetic according to claim 1, wherein,

E (f) and E(s) are each 0.6gf cm ²/cm or more and 2.0gf cm ²/cm or less.

4. An aerosol hair coloring or bleaching cosmetic according to any one of claim 1 to 3, wherein,

The surfactant is further contained in either one of the first agent and the second agent or both of them.

5. The aerosol hair coloring or bleaching cosmetic according to claim 4, wherein,

The surfactant is one or more selected from cationic surfactant, nonionic surfactant, amphoteric surfactant and anionic surfactant.

6. An aerosol hair coloring or bleaching cosmetic according to any one of claim 1 to 3, wherein,

The higher alcohol is further contained in either one of the first agent and the second agent or both of them.

7. The aerosol hair coloring or bleaching cosmetic according to claim 6, wherein,

The higher alcohol is a compound represented by the following general formula (1),

R-OH(1)

8. The aerosol hair coloring or bleaching cosmetic according to claim 7, wherein,

The higher alcohol is a combination of (1 a) a higher alcohol wherein R is a linear alkyl group having 12 to 18 carbon atoms and (1 b) a higher alcohol wherein R is a linear alkyl group having 20 to 24 carbon atoms.

9. The aerosol hair coloring or bleaching cosmetic according to claim 8, wherein,

Mass ratio (1 a) of component (1 a) to component (1 b): (1 b) is 0.5:9.5 to 9.5:0.5.

10. The aerosol hair coloring or bleaching cosmetic according to claim 6, wherein,

The content of the higher alcohol in the mixture of the first agent and the second agent is 3% by mass or more and 12% by mass or less.

11. An aerosol hair coloring or bleaching cosmetic according to any one of claim 1 to 3, wherein,

The hydrocarbon is further contained in either the first agent, the second agent, or both.

12. An aerosol hair coloring or bleaching cosmetic according to claim 11, wherein,

The hydrocarbon content in the mixture of the first agent and the second agent is 1 mass% or more and 20 mass% or less.

13. An aerosol hair coloring or bleaching cosmetic according to any one of claim 1 to 3, wherein,

The ester oil is contained in either or both of the first agent and the second agent.

14. An aerosol hair coloring or bleaching cosmetic according to claim 13, wherein,

The content of the ester oil in the mixture of the first agent and the second agent is 0.01 mass% or more and 5 mass% or less.

15. An aerosol hair coloring or bleaching cosmetic according to any one of claim 1 to 3, wherein,

The content of the alkaline agent in the first agent is 0.1 mass% or more and 14 mass% or less.

16. An aerosol hair coloring or bleaching cosmetic according to any one of claim 1 to 3, wherein,

The content of hydrogen peroxide in the second agent is 1 mass% or more and 9 mass% or less.