Cosmetic for decoloring or dyeing hair

Abstract

Provided is a foamy cosmetic for decoloring or dyeing hair, the foamy cosmetic being capable of obtaining a complete effect in which the surface and the inner side of the hair are free from color unevenness, while the preparation sufficiently permeates into the inner side of the hair (to the vicinity of the hair root). Namely, the present invention provides a hair decoloring or hair dyeing cosmetic which comprises a first agent containing an alkaline agent, a second agent containing hydrogen peroxide, and a container for discharging a mixed solution containing the first agent and the second agent in the form of foam, and which is characterized in that: at least one of the first agent and the second agent prior to mixing is a solubilizing solution; the hydrotropy solution contains a mixed solution containing the following components (A)-(D), and when the component (A) contained in the hydrotropy solution before mixing is set as component (A) s, the mass ratio (A) s / [(A) + (B)] of component (A) s to the total of component (A) and component (B) is 0.079 or less, (A) is an aliphatic alcohol having 10-14 carbon atoms; (B) an aliphatic alcohol having 19 to 24 carbon atoms (inclusive); (C) an ionic surfactant; and (D) a polymer containing a diallyl quaternary ammonium salt as a structural unit.

Description

Technical Field

[0001] The present invention relates to a cosmetic for hair decolorization or hair dyeing. Background Art

[0002] In recent years, hair bleaching agents and hair dyes have been proposed that simplify the bleaching or dyeing process by dispensing the preparations in a foamy form. For example, single-dose or two-dose aerosol or non-aerosol hair bleaching agents and hair dyes are known. However, conventional foam preparations have the following problems: when applied to hair that is covered with sebum or when applied to leave-in hair treatments and conditioners, the foam tends to disappear when applied to the hair or when the foam is left on the hair, and dripping may occur. In such cases, the hair cannot be dyed uniformly and beautifully.

[0003] To address this problem, a non-aerosol-type cosmetic for hair bleaching or dyeing is known. By adding a specific anionic surfactant and a specific cationic polymer to a mixed solution of a first agent and a second agent in the non-aerosol-type cosmetic for hair bleaching or dyeing, the cosmetic exhibits excellent foaming properties and foam durability even when applied to hair already coated with the hair cosmetic, enabling bleaching or dyeing without color unevenness (Patent Document 1).

[0004] (Patent Document 1) Japanese Patent Application Laid-Open No. 2015-107962 Summary of the Invention

[0005] The present invention provides a cosmetic product for hair bleaching or dyeing, comprising: a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a container for spraying a mixed solution containing the first agent and the second agent in a foamy form.

[0006] Among all the agents before mixing, including the first agent and the second agent, at least one agent is a solubilizing solution,

[0007] The mixed solution contains the following components (A) to (D), and

[0008] When the component (A) contained in the solubilizing solution before mixing is referred to as the component (A)s, the mass ratio of the component (A)s to the total of the components (A) and (B) (A)s / [(A)+(B)] is 0.079 or less,

[0009] (A) an aliphatic alcohol having 10 to 14 carbon atoms;

[0010] (B) an aliphatic alcohol having 19 to 24 carbon atoms;

[0011] (C) an ionic surfactant;

[0012] (D) A polymer comprising a diallyl quaternary ammonium salt as a structural unit.

[0013] Furthermore, the present invention provides a method for hair bleaching or dyeing, comprising using the above-mentioned cosmetic product for hair bleaching or dyeing, spraying a mixed solution containing the first agent and the second agent in the form of foam from a container, and applying the foam to the hair by hand.

[0014] Even with the technology described in Patent Document 1, there's still the problem of difficulty in achieving deep penetration into the hair (near the roots) depending on how the foam is applied. Specifically, users who aren't very experienced with bleaching or coloring, such as those new to home hair dye, often "paint" the sprayed foam onto their hair. In these cases, the foam doesn't fully penetrate the hair's interior, leading to residual dye residue and uneven dyeing. Furthermore, for those seeking a superior finish, excellent deep penetration into the hair is also a desirable characteristic of a foamy hair bleach or hair dye.

[0015] Therefore, the present invention relates to a foamy cosmetic for hair bleaching or dyeing that fully utilizes the advantages of the technology described in Patent Document 1, allowing the preparation to fully penetrate into the inner side of the hair (near the hair roots) and achieve a finished effect with no color unevenness on the surface and inner side of the hair.

[0016] The present inventors have discovered that in a multi-component cosmetic product for hair bleaching or dyeing, a mixture comprising a first component containing an alkaline agent and a second component containing hydrogen peroxide is dispensed from a container in the form of a foam. By configuring all pre-mixed components to consist of at least one solubilizing solution and at least one emulsifying solution, using two groups of fatty alcohols of specific chain lengths, an ionic surfactant, and a specific cationic polymer, and controlling the relative amount of the short-chain fatty alcohol in the solubilizing solution relative to the total of the two groups of fatty alcohols in the mixture, the viscosity of the foam is maintained low from the time of dispensing until application, significantly improving penetration into the inner side of the hair (near the hair roots) and transfer of the components of the mixture into the interior of the hair fiber. Furthermore, the foam's stability to oily components such as sebum is also enhanced. Consequently, the present invention exhibits superior bleaching or dyeing properties, with no color unevenness between the inner and outer sides of the hair.

[0017] The foam sprayed from the hair bleaching or hair dyeing cosmetic of the present invention has significantly improved penetration into the inner side of the hair (near the scalp) and transferability of the mixed liquid components into the interior of the hair fibers. Furthermore, the foam also has excellent stability against oily components such as sebum. As a result, high bleaching or dyeing properties are achieved without color unevenness between the inner side and the outer side of the hair. DETAILED DESCRIPTION

[0018] The hair bleaching or dyeing cosmetic of the present invention can be used as a two-part cosmetic, wherein the two-part cosmetic comprises a first part and a second part, or as a three-part or four-part cosmetic, wherein, in addition to the first and second parts, an agent containing a granulated material such as a persulfate or an agent containing a conditioning ingredient is further mixed as a third or fourth part. In the present invention, the mixed solution in the case of a two-part cosmetic refers to a mixed solution of the first and second parts; in the case of a three-part cosmetic, refers to a mixed solution of the first, second, and third parts; and in the case of a four-part cosmetic, refers to a mixed solution of the first, second, third, and fourth parts.

[0019] In addition, among all the agents before mixing, including the first and second agents, constituting the bleaching or dyeing product of the present invention, at least one agent is a solubilizing solution, and the remaining agents may be any of a solubilizing solution and an emulsion, preferably including at least one emulsion.

[0020] Furthermore, as described in Reference 1 (Moroi Y., "Solubilization" Micelles, 1992, Chapter 9, pp. 167-181 (URL: https: / / doi.org / 10.1007 / 978-1-4899-0700-4_9)), a solubilizer is a thermodynamically stable isotropic solution prepared by adding an amphiphilic component to a substance that is usually insoluble or slightly soluble in a solvent.

[0021] [Alkali]

[0022] The first agent contains an alkali agent. Examples of the alkali agent include: ammonia and its salts such as concentrated ammonia water and ammonium chloride; alkanolamines and their salts such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, and 2-aminobutanol; alkylenediamines and their salts such as 1,3-propylenediamine; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium bicarbonate, and potassium bicarbonate. Two or more of these alkali agents may be used in combination. Regarding the content of the alkali agent in the mixed solution, from the perspective of sufficient bleaching or dyeing effect, it is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, and even more preferably 2.0% by mass or more. In addition, from the perspective of reducing fiber damage or scalp irritation, it is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and even more preferably 5% by mass or less.

[0023] [Hydrogen peroxide]

[0024] The second agent contains hydrogen peroxide. The hydrogen peroxide content in the second agent is preferably 0.5% by mass or greater, more preferably 1% by mass or greater, even more preferably 3% by mass or greater, and preferably 12% by mass or less, more preferably 9% by mass or less, and even more preferably 6% by mass or less. The hydrogen peroxide content in the mixed solution is preferably 0.5% by mass or greater, more preferably 1% by mass or greater, even more preferably 2% by mass or greater, and preferably 6% by mass or less, and even more preferably 5% by mass or less. Furthermore, from the perspective of suppressing the decomposition of hydrogen peroxide, the pH of the second agent is preferably 2% or greater, more preferably 2.5% or greater, and preferably 6% or less, and even more preferably 4% or less.

[0025] [Component (A): Aliphatic alcohol having 10 to 14 carbon atoms]

[0026] The cosmetic product for hair bleaching or dyeing of the present invention contains an aliphatic alcohol having 10 to 14 carbon atoms as component (A) in the mixed solution. Component (A) is preferably a saturated aliphatic alcohol, and preferably a linear aliphatic alcohol. Component (A) preferably has 12 to 14 carbon atoms, more preferably 14.

[0027] Examples of the component (A) include decyl alcohol, dodecanol, and myristyl alcohol, and among these, myristyl alcohol is preferred.

[0028] Component (A) can be used alone or in combination of two or more. From the viewpoint of improving penetration into the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, and achieving high bleaching or dyeing properties without color unevenness, the content of component (A) in the mixed solution is preferably 0.1% by mass or more, more preferably 0.15% by mass or more, and even more preferably 0.2% by mass or more, and is preferably 2% by mass or less, more preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

[0029] In addition, a part of the component (A) may be contained in the auxiliary solution before mixing. In the present invention, the component (A) contained in the auxiliary solution before mixing is referred to as "component (A)s".

[0030] [Component (B): Aliphatic alcohol having 19 to 24 carbon atoms]

[0031] The cosmetic product for hair bleaching or dyeing of the present invention contains an aliphatic alcohol having 19 to 24 carbon atoms as component (B) in the mixed solution. Component (B) is preferably a saturated aliphatic alcohol, and preferably a linear aliphatic alcohol. Component (B) preferably has 20 to 24 carbon atoms, more preferably 22.

[0032] Examples of the component (B) include arachidyl alcohol, behenyl alcohol, and carnaubayl alcohol. Among them, behenyl alcohol is preferred.

[0033] Component (B) can be used alone or in combination of two or more. From the viewpoint of improving penetration into the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, and achieving high bleaching or dyeing properties without color unevenness, the content of component (B) in the mixed solution is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.2% by mass or more, and is preferably 2% by mass or less, more preferably 1.5% by mass or less, and even more preferably 1% by mass or less.

[0034] From the viewpoint of improving the permeability to the inner side of the hair, the transferability into the interior of the hair fiber, and the sebum resistance, and achieving high bleaching or dyeing properties without color unevenness, the cosmetic product for hair bleaching or hair dyeing of the present invention preferably does not contain component (A), component (B), or aliphatic alcohols other than these in the solubilizing solution. Even when these are contained, the total content of these is preferably as low as possible, preferably 0.3% by mass or less, more preferably 0.2% by mass or less, even more preferably 0.1% by mass or less, even more preferably 0.05% by mass or less, even more preferably 0.01% by mass or less, even more preferably 0.005% by mass or less, and even more preferably 0.001% by mass or less.

[0035] In the cosmetic product for hair bleaching or hair dyeing of the present invention, when component (A) contained in the solubilizing solution before mixing is referred to as component (A)s, component (A)s has a specific quantitative relationship with respect to the total amount of component (A) and component (B). That is, with the total amount of component (A) and component (B) contained in a mixed solution containing the first and second agents obtained at an appropriately set mixing ratio as 100% by mass as a reference, the mass ratio (A)s / [(A) + (B)], which represents the ratio of the amount (mass %) of component (A)s, exhibits a specific value.

[0036] Specifically, in the cosmetic product for hair bleaching or dyeing of the present invention, from the viewpoint of improving the permeability to the inner side of the hair, the transferability to the interior of the hair fiber, and the sebum resistance, and realizing a high bleaching or dyeing property without color unevenness, when the component (A) contained in the solubilizing solution before mixing is referred to as the component (A)s, the mass ratio of the component (A)s to the total of the components (A) and (B) is (A)s / [(A)+(B)] of 0.079 or less, preferably 0.07 or less, and more preferably 0.07 or less. The content of the component (A) is preferably 0.06 or less, more preferably 0.05 or less, more preferably 0.04 or less, more preferably 0.03 or less, more preferably 0.02 or less, more preferably 0.01 or less, more preferably 0.005 or less, more preferably 0.001 or less, more preferably 0.0005 or less, more preferably 0.0001 or less, and further preferably the solubilizing solution does not contain the component (A), that is, the component (A)s is 0% by mass in 100% by mass of the solubilizing solution.

[0037] When the hair bleaching or hair dyeing cosmetic of the present invention contains a plurality of solubilizing solutions, the amount of component (A)s contained in the solubilizing solutions refers to the total amount of component (A) contained in all the solubilizing solutions.

[0038] [Component (C): Ionic surfactant]

[0039] The hair bleaching or hair dyeing cosmetic composition of the present invention contains an ionic surfactant as component (C) in the mixed liquid. Examples of the ionic surfactant include cationic surfactants, anionic surfactants, and amphoteric surfactants. Of these, cationic surfactants and anionic surfactants are preferred from the perspectives of the foaming properties and foam durability of the sprayed mixed liquid, and the solubility of the dye contained in the hair bleaching or hair dyeing cosmetic composition.

[0040] Cationic surfactants

[0041] As the cationic surfactant, a mono-long chain alkylammonium salt represented by the following general formula (1) is preferred.

[0042]

[0043] [Where R 1 represents a linear alkyl group having 12 to 24 carbon atoms, X - represents anions (chloride ion, bromide ion, iodide ion, sulfate anion, sulfonate anion, methylsulfate anion, phosphate anion, nitrate anion, etc.).]

[0044] From the viewpoint of improving the permeability to the inner side of the hair, the transferability to the interior of the hair fiber, and the sebum resistance, and achieving high dyeing properties without color unevenness, R in the general formula (1) 1 The number of carbon atoms is preferably 12 to 18.

[0045] As a more preferable cationic surfactant, a combination of a mono-long chain alkylammonium salt represented by the following general formula (2) and a mono-long chain alkylammonium salt represented by the following general formula (3) can be mentioned.

[0046]

[0047] [Where R 2 represents a linear alkyl group having 12 to 16 carbon atoms, X - Means the same as above.]

[0048]

[0049] [Where R 3 represents a linear alkyl group having 18 to 24 carbon atoms, X - Means the same as above.]

[0050] From the viewpoint of improving the permeability to the inner side of the hair, the transferability to the interior of the hair fiber, and the sebum resistance, and achieving high dyeing properties without color unevenness, R in the general formula (2) 2 The number of carbon atoms is preferably 14 to 16, more preferably 16. From the same viewpoint, R in the general formula (2) 3 The number of carbon atoms is preferably 18 to 20, more preferably 18.

[0051] Specific examples of preferred cationic surfactants include cetyltrimethylammonium chloride and stearyltrimethylammonium chloride.

[0052] <Anionic surfactant>

[0053] Examples of anionic surfactants include sulfate anionic surfactants such as alkyl sulfates and alkyl ether sulfates; carboxylic acid anionic surfactants such as N-acylamino acid salts, N-acyl-N-alkylamino acid salts, amide-type N-acylamino acid salts, ether carboxylates, fatty acid salts, and salts of alkyl succinates or alkenyl succinates; sulfonic acid anionic surfactants such as sulfosuccinates, isethionates, taurates, alkylbenzenesulfonates, α-olefinsulfonates, and alkanesulfonic acid; and phosphate anionic surfactants such as alkyl phosphates and alkyl ether phosphates. Among these, carboxylic acid anionic surfactants and sulfate anionic surfactants are preferred. Among the carboxylic acid-based anionic surfactants, N-acylamino acid salts and ether carboxylates are preferred. Among them, preferred are: N-acylglutamates in which the number of carbon atoms in the acyl group is 10 to 18, preferably 10 to 16, and more preferably 10 to 14; and polyoxyethylene alkyl ether sulfates in which the number of carbon atoms in the alkyl group is 10 to 18, preferably 10 to 16, and more preferably 10 to 14, and the average number of added moles of ethylene oxide is 4 or less, preferably 3 or less, and more preferably 4 or less.

[0054] Specific examples of preferred anionic surfactants include sodium cocoyl glutamate and sodium polyoxyethylene lauryl ether sulfate.

[0055] <Amphoteric surfactant>

[0056] Examples of amphoteric surfactants include carbonyl betaines, amido betaines, sulfobetaines, hydroxysulfobetaines, amidosulfobetaines, phosphobetaines, and imidazolinium surfactants having an alkyl, alkenyl, or acyl group having 8 to 24 carbon atoms. Among these, carbonyl betaine surfactants and sulfobetaine surfactants are preferred. Preferred amphoteric surfactants include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl dimethylaminoacetic acid betaine, and lauryl hydroxysulfobetaine.

[0057] Component (C) can be used alone or in combination of two or more. From the viewpoint of improving permeability to the inner side of the hair, transferability to the interior of the hair fiber, and sebum resistance, and achieving high bleaching or dyeing properties without color unevenness, the total content of component (C) in the mixed solution is preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 1.5% by mass or more, and even more preferably 2% by mass or more, and is preferably 7% by mass or less, more preferably 5% by mass or less, even more preferably 4% by mass or less, and even more preferably 3% by mass or less.

[0058] [Component (D): polymer containing a diallyl quaternary ammonium salt as a structural unit]

[0059] The cosmetic product for hair bleaching or dyeing of the present invention contains a polymer comprising a diallyl quaternary ammonium salt as a structural unit as component (D) in the mixed liquid. Furthermore, the polymer comprising a diallyl quaternary ammonium salt as a structural unit in the present invention also includes polymers having cationic groups other than the diallyl quaternary ammonium salt or other anionic groups. In the case of such polymers, only the charge density of the cationic group is considered.

[0060] From the perspective of improving permeability to the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, thereby achieving high dyeability without color unevenness, the charge density of component (D) is preferably 4.0 meq / g or greater, more preferably 4.3 meq / g or greater, even more preferably 4.6 meq / g or greater, even more preferably 4.9 meq / g or greater, even more preferably 5.2 meq / g or greater, and even more preferably 5.5 meq / g or greater, and is preferably 8.0 meq / g or less, more preferably 7.0 meq / g or less, and even more preferably 6.5 meq / g or less. In the present invention, charge density refers to the number of moles of cationic groups per 1 g of the polymer × 1000 (meq / g).

[0061] The polymer of component (D) is a polymer having a skeleton represented by the following general formula (4) or (5).

[0062]

[0063] [Where R 4 and R 5 may be the same or different, and represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an aryl group (such as a phenyl group), a hydroxyalkyl group, an amide alkyl group, a cyanoalkyl group, an alkoxyalkyl group, or a carbonylalkoxyalkyl group, and R 6 and R 7 may be the same or different, and represent a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a phenyl group, - represents anions (chloride ion, bromide ion, iodide ion, sulfate anion, sulfonate anion, methylsulfate anion, phosphate anion, nitrate anion, etc.).]

[0064] From the viewpoint of improving the permeability to the inner side of the hair, the transferability into the interior of the hair fiber, and the sebum resistance, thereby achieving high dyeability without color unevenness, the polymer of component (D) preferably contains 85 to 100 mol%, more preferably 90 to 100 mol%, and even more preferably 95 to 100 mol% of the structural unit represented by formula (4) or (5) in one molecule.

[0065] The polymer of the component (D) is preferably a homopolymer of a diallyl quaternary ammonium salt or a copolymer of a diallyl quaternary ammonium salt and acrylic acid. Among them, a copolymer of a diallyl quaternary ammonium salt and acrylic acid is more preferred.

[0066] As the copolymer of a diallyl quaternary ammonium salt and acrylic acid, for example, a copolymer represented by the following general formula (4a) or (5a) is preferable.

[0067]

[0068] [In various forms, R 4 、R 5 、R 6 、R 7 and X - These have the same meanings as above. x and y represent numbers from 1 to 99, respectively, and z represents a number from 150 to 8,000.]

[0069] From the viewpoint of improving permeability to the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, thereby achieving high dyeability without color unevenness, the ratio of x to y (x:y) is preferably 85:15 to 99:1, more preferably 90:10 to 99:1, and even more preferably 95:5 to 99:1.

[0070] The addition pattern of x and y may be block or random.

[0071] From the viewpoint of improving permeability to the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, and achieving high dyeability without color unevenness, the weight average molecular weight of component (D) is preferably 10,000 or more, more preferably 50,000 or more, and even more preferably 100,000 or more, and is preferably 3,000,000 or less, more preferably 1,000,000 or less, and even more preferably 200,000 or less.

[0072] Here, the weight average molecular weight can be measured by, for example, gel permeation chromatography (GPC) under the following conditions.

[0073] Mobile layer: 50 mM LiBr, 1 mass% CH3COOH / ethanol:water = 3:7

[0074] Column: TSK gelα-M (two in series)

[0075] Standard substance: polyethylene glycol

[0076] Specific examples of the component (D) include Merquat 100 (manufactured by Lubrizol Advanced Materials, Inc., a homopolymer of diallyl quaternary ammonium), and Merquat 280 and 295 (manufactured by Lubrizol Advanced Materials, Inc., a copolymer of a diallyl quaternary ammonium salt and acrylic acid).

[0077] Component (D) can be used alone or in combination of two or more. Component (D) can be included in any of the agents of the hair bleaching or hair dyeing cosmetic of the present invention. However, from the perspective of improving penetration into the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, and achieving high dyeing properties without color unevenness, it is preferably included in the first agent.

[0078] From the viewpoint of improving the permeability to the inner side of the hair, the transferability into the interior of the hair fiber, and the sebum resistance, thereby achieving high dyeing properties without color unevenness, the content of component (D) in the mixed liquid is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.4% by mass or more, and is preferably 2% by mass or less, more preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

[0079] [Ingredient (E): nonionic surfactant]

[0080] The hair bleaching or hair dyeing cosmetic product of the present invention may contain a nonionic surfactant as component (E) in the mixed liquid. Examples of the nonionic surfactant include polyoxyalkylene alkyl ethers, alkyl alkanolamides, polyoxyalkylene alkylamines, alkyl polyglucosides, and alkyl glyceryl ethers. Among these, polyoxyalkylene alkyl ethers are preferred from the viewpoints of the foaming properties and foam durability of the sprayed mixed liquid, and the solubility of the dye contained in the hair bleaching or hair dyeing cosmetic product.

[0081] As the polyoxyalkylene alkyl ether, a compound represented by the following general formula (6) can be used.

[0082] R 8 -O-(AO) r -H(6)

[0083] [Where R 8 represents a linear or branched saturated or unsaturated hydrocarbon group having 8 to 22 carbon atoms, A represents an alkylene group having 2 to 4 carbon atoms, and r is an average value and represents a number from 1 to 250.]

[0084] From the viewpoint of the foaming property and foam persistence of the sprayed mixed liquid and the solubility of the dye contained in the hair bleaching or hair dyeing cosmetic, R 8The number of carbon atoms in alkylene oxide is preferably 10-22, more preferably 12-20, and even more preferably 12-18.

[0085] A is preferably an ethylene group or a propylene group, and more preferably an ethylene group.

[0086] r is preferably 1-200, more preferably 2-180, and even more preferably 10-160.

[0087] In addition, from the perspective of improving permeability to the inner side of the hair, transferability to the interior of the hair fiber, and sebum resistance, and achieving high dyeability without color unevenness, it is preferable to use a polyoxyalkylene alkyl ether in combination with two or more compounds having different average numbers of added moles r of alkylene oxide. Specifically, as polyoxyalkylene alkyl ethers, it is preferable to use in combination two compounds: component (E1) having r of 1 to 79 and component (E2) having r of 80 to 250. r in component (E1) is preferably 10 or more, more preferably 20 or more, and even more preferably 30 or more, and is preferably 70 or less, more preferably 60 or less, and even more preferably 50 or less. r in component (E2) is preferably 100 or more, more preferably 120 or more, and is preferably 200 or less, and even more preferably 180 or less.

[0088] Specific examples of polyoxyalkylene alkyl ethers include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, and polyoxyethylene oleyl ether. Among them, polyoxyethylene cetyl ether is preferred from the viewpoints of foaming properties and foam durability of the sprayed mixed liquid and solubility of dyes contained in cosmetic products for hair bleaching or hair dyeing.

[0089] As the alkyl alkanolamide, a compound represented by the following general formula (7) can be used.

[0090]

[0091] [Where R 9 represents a linear or branched saturated or unsaturated hydrocarbon group having 5 to 23 carbon atoms, R 10 and R 11 Each independently represents a hydrogen atom or an alkanol group having 1 to 4 carbon atoms. 10 With R 11 Except when it is also a hydrogen atom.]

[0092] From the viewpoint of the foaming property of the sprayed mixed liquid and the solubility of the dye contained in the hair bleaching or hair dyeing cosmetic, R 9 The number of carbon atoms in the moiety is preferably 8-22, more preferably 10-20, and even more preferably 12-18.

[0093] Specific examples of the alkyl alkanolamide include coconut fatty acid monoethanolamide, coconut fatty acid diethanolamide, lauric acid isopropanolamide, and oleic acid diethanolamide.

[0094] As the polyoxyalkylene alkylamine, a compound represented by the following general formula (8) can be used.

[0095]

[0096] [Where R 12 represents a linear or branched saturated or unsaturated hydrocarbon group having 5 to 23 carbon atoms, A 1 and A 2 Each independently represents an ethylene group or a propylene group, s and t are average values, and the total of the two is 5 to 50.]

[0097] About R 12 The number of carbon atoms in the spray is preferably 8 to 22, more preferably 10 to 20, and even more preferably 12 to 18, from the viewpoint of the foaming property of the sprayed mixed liquid and the solubility of the dye contained in the hair bleaching or hair dyeing cosmetic. 1 and A 2 The total of s and t is preferably 8-30, more preferably 10-20.

[0098] Specific examples of the polyoxyalkylene alkylamine include polyoxyethylene laurylamine, polyoxyethylene cetylamine, and polyoxyethylene coconut amine.

[0099] The alkyl polyglucoside is preferably an alkyl polyglucoside having an alkyl group with 6 to 22 carbon atoms and a degree of condensation of the glucoside unit of 1 to 7. Specific examples include octyl polyglucoside, 2-ethylhexyl polyglucoside, decyl polyglucoside, lauryl polyglucoside, myristyl polyglucoside, palmityl polyglucoside, isostearyl polyglucoside, stearyl lauryl polyglucoside, oleyl polyglucoside, and behenyl polyglucoside. Among these, more preferred are alkyl polyglucosides having an alkyl group with 8 to 18 carbon atoms and a degree of condensation of the glucoside unit of 1 to 7.

[0100] As the alkyl glyceryl ether, the alkyl group preferably has 8 to 20 carbon atoms, more preferably 14 to 18 carbon atoms, and is preferably a branched alkyl group. Specific examples include isostearyl glyceryl ether and isostearyl pentaerythritol glyceryl ether.

[0101] Among these nonionic surfactants, polyoxyalkylene alkyl ethers are preferred from the viewpoint of the stability of the cosmetic product for hair bleaching or hair dyeing and the solubility of the dye contained therein.

[0102] The nonionic surfactant of component (E) can be used alone or in combination of two or more. From the viewpoint of improving penetration into the inner side of the hair, transferability into the interior of the hair fiber, and sebum resistance, and achieving high bleaching or dyeing properties without color unevenness, the content of component (E) in the mixed solution is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more, and is preferably 3% by mass or less, more preferably 2% by mass or less, and even more preferably 1% by mass or less.

[0103] [dye]

[0104] When the cosmetic product for hair bleaching or hair dyeing of the present invention is a cosmetic product for hair dyeing, the first agent contains an oxidation dye intermediate or a direct dye.

[0105] (Oxidation dye intermediates)

[0106] As oxidation dye intermediates, known precursors and couplers commonly used in hair dyes can be used. Examples of the precursors include p-phenylenediamine, toluene-2,5-diamine, o-chloro-p-phenylenediamine, N-phenyl-p-phenylenediamine, N,N-bis(hydroxyethyl)-p-phenylenediamine, 3-methyl-4-aminophenol, 2-hydroxyethyl-p-phenylenediamine, p-aminophenol, p-methylaminophenol, 4-amino-m-cresol, o-aminophenol, 1-hydroxyethyl-4,5-diaminopyrazole, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-pyrimidinol, 2-methoxymethyl-p-phenylenediamine, and salts thereof.

[0107] In addition, examples of the coupler 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, 4-chlororesorcinol, and salts thereof.

[0108] Two or more precursors and couplers may be used in combination. The content of each of the precursor and coupler in the first agent is preferably 0.005% by mass or more, more preferably 0.05% by mass or more, and preferably 3% by mass or less, more preferably 2.5% by mass or less.

[0109] (Direct Dyes)

[0110] Examples of direct dyes include acid dyes, nitro dyes, disperse dyes, and basic dyes. More specifically, examples of acid dyes include Blue No. 1, Violet No. 401, Black No. 401, Orange No. 205, Red No. 227, Red No. 106, Yellow No. 203, and Acid Orange 3. Examples of nitro dyes include 2-nitro-p-phenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitro-o-phenylenediamine, 4-amino-3-nitrophenol, and 4-hydroxypropyl Examples include amino-3-nitrophenol, HC Blue 2, HC Orange 1, HC Red 1, HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Red 3, and N,N-bis(2-hydroxyethyl)-2-nitro-p-phenylenediamine. Examples of disperse dyes include Disperse Violet 1, Disperse Blue 1, and Disperse Black 9. Examples of basic dyes include Basic Blue 99, Basic Brown 16, Basic Brown 17, Basic Red 76, Basic Yellow 76, Basic Orange 31, and Basic Red 51. Furthermore, examples of dyes other than these include picramic acid, Basic Violet 2, Basic Yellow 57, Basic Brown 16, Yellow No. 403, Basic Violet 2, Basic Yellow 87, HC Blue 18, HC Yellow 16, HC Red 16, Basic Blue 124, Yellow No. 4, HC Blue 15, and tetrabromophenol blue.

[0111] The content of the direct dye in the first agent is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less.

[0112] [Oil]

[0113] The cosmetic product for hair bleaching or hair dyeing of the present invention may further contain an oily agent from the viewpoint of stabilizing the foam of the sprayed mixed liquid. Examples of such oils include hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffins, and cycloparaffins; glycerides such as castor oil, cocoa butter, mink oil, avocado oil, and olive oil; waxes such as beeswax, spermaceti, lanolin, and carnauba wax; esters such as isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, cetyl 2-ethylhexanoate, isononyl isononanoate, and tridecyl isononanoate; higher fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut fatty acid, isostearic acid, and isopalmitic acid; higher alcohols other than components (A) and (B), such as cetyl alcohol, stearyl alcohol, and cetearyl alcohol; and other isostearyl glyceryl ethers and polyoxypropylene butyl ethers.

[0114] The content of the oil in the mixed liquid is preferably 0.01 mass % or more, more preferably 0.03 mass % or more, and even more preferably 0.05 mass % or more, and is preferably 3 mass % or less, more preferably 2.5 mass % or less, and even more preferably 2 mass % or less.

[0115] [Silicone]

[0116] In the cosmetic product for hair bleaching or dyeing of the present invention, silicone is preferably not contained in the mixed liquid from the viewpoint of maintaining the sprayed foam for a long period of time. However, silicones may be further contained within a certain range to ensure smooth integration of the foam into the hair and to provide a high conditioning effect on the hair. Examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicones, amino-modified silicones, oxazoline-modified silicone elastomers, and emulsions of these dispersed in water using surfactants. Of these, polyether-modified silicones, amino-modified silicones, and emulsions of these are preferred from the viewpoint of being able to be stably dispersed in water without the use of a thickener.

[0117] Polyether-modified silicones include terminal-modified and side-chain-modified modified silicones, such as side-chain-type (comb-type), both-end-modified, and single-end-modified modified silicones. Examples of such modified silicones include dimethylsiloxane-methyl (polyoxyethylene)siloxane copolymers, dimethylsiloxane-methyl (polyoxypropylene)siloxane copolymers, and dimethylsiloxane-methyl (polyoxyethylene-polyoxypropylene)siloxane copolymers. From the perspective of compatibility with water, polyether-modified silicones preferably have an HLB of 10 or greater, and more preferably an HLB of 10 to 18. Here, the HLB is obtained from the value obtained based on the haze value (haze value: an index related to HLB and applicable to ether-type nonionic surfactants).

[0118] The amino-modified silicone may be any one having an amino group or an ammonium group, and amino-terminated polydimethylsiloxane is preferred.

[0119] When silicones are added to the mixed liquid, the content of silicones is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, from the viewpoint of allowing the foam to smoothly blend into the hair and imparting a high conditioning effect. Furthermore, from the viewpoint of not hindering the foaming properties of the sprayed mixed liquid, the content is preferably 2% by mass or less, more preferably 1.5% by mass or less, and even more preferably 1% by mass or less.

[0120] [Non-volatile hydrophilic solvent]

[0121] Furthermore, the mixed liquid preferably contains a non-volatile hydrophilic solvent. This can reduce scalp irritation caused by the evaporation of water from the mixed liquid while the foam is applied to the hair and then left standing, which can lead to the concentration of irritating components such as hydrogen peroxide. Preferred non-volatile hydrophilic solvents include polyols or their lower (1-4 carbon atoms) alkyl ethers. Polyols preferably have 2-6 carbon atoms, such as glycerol, diglycerol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, ethylene glycol, diethylene glycol, isopentyl glycol, and sorbitol. Examples of lower alkyl ethers of polyols include mono-lower alkyl ethers and poly-lower alkyl ethers (e.g., di-lower alkyl ethers) of polyols. Among these, monomethyl ethers or monoethyl ethers of polyols are preferred, and specific examples include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether. These may be used in combination of two or more types.

[0122] The content of the non-volatile hydrophilic solvent in the mixed liquid is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and even more preferably 1% by mass or more, from the perspective of reducing scalp irritation and improving foam quality. It is also preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, and even more preferably 2% by mass or less.

[0123] [Other optional ingredients]

[0124] In addition to the aforementioned ingredients, other ingredients commonly used as cosmetic raw materials may be added to the cosmetic product for hair bleaching or dyeing of the present invention. Examples of such optional ingredients include animal and vegetable oils and fats, natural or synthetic polymers, ethers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, herbal extracts, vitamins, fragrances, and ultraviolet absorbers.

[0125] [pH value]

[0126] From the perspectives of bleaching or dyeing effects and skin irritation, the pH (25°C) of the mixed solution of the hair bleaching or hair dyeing cosmetic of the present invention is preferably 8 or higher, more preferably 9 or higher, and preferably 12 or lower, more preferably 11 or lower, and even more preferably 10.5 or lower. Examples of pH adjusters, in addition to the above-mentioned alkaline agents, include inorganic acids such as hydrochloric acid and phosphoric acid; organic acids such as citric acid, glycolic acid, and lactic acid; and phosphates such as potassium dihydrogen phosphate and disodium hydrogen phosphate.

[0127] [Viscosity]

[0128] The preferred viscosity range of the mixed solution is preferably 1 mPa·s or more, more preferably 5 mPa·s or more, and preferably 600 mPa·s or less, more preferably 300 mPa·s or less, even more preferably 200 mPa·s or less, and even more preferably 100 mPa·s or less. The viscosity herein is measured at 25°C using a B-type rotational viscometer (model: Digital Viscometer TV-10, Toki Sangyo Co., Ltd.) with rotor No. 1 at a rotation speed of 60 rpm for measurements below 100 mPa·s, 30 rpm for measurements between 100 and 200 mPa·s, and 12 rpm for measurements above 200 mPa·s. Measurements are performed sequentially, starting with the measurement at the higher rotation speed. Measurements are terminated at the point where measurement is possible without exceeding the display range, and subsequent measurements at the lower rotation speed are not performed. The viscosity of the mixed solution is measured 3 minutes after the mixing of the respective agents begins.

[0129] By adjusting the viscosity of the mixed liquid to fall within the above range, a foam volume that is easily applied can be achieved, and dripping after application of the mixed liquid to the hair can be suppressed. Furthermore, the foam can be easily squeezed when dispensed using a squeeze foamer and easily pumped out when dispensed using a pump foamer. Adjusting the viscosity of the mixed liquid to fall within the above range can be accomplished by adding a water-soluble solvent or by appropriately adjusting the content or type of surfactants, polyols, higher alcohols, etc.

[0130] The cosmetic product for hair bleaching or dyeing of the present invention can maintain a low viscosity from the time of dispensing to the time of application, thereby improving penetration into the inner side of the hair. From the perspective of improving penetration into the inner side of the hair, the viscosity of the foam dispensed from the container from the time of dispensing to the time of application is preferably 15 Pa·s or less, more preferably 13 Pa·s or less, and even more preferably 10 Pa·s or less. From the perspective of preventing dripping, the viscosity is preferably 0.5 Pa·s or more, more preferably 1.0 Pa·s or more, more preferably 3.0 Pa·s or more, more preferably 4.0 Pa·s or more, and even more preferably 5.0 Pa·s or more.

[0131] Here, the viscosity of the foam is measured using a B-type viscometer (screw type, TC, 10 rpm, 1 minute).

[0132] [container]

[0133] In the present invention, the container used to dispense the mixed liquid containing the first and second agents in a foamy form is preferably a non-aerosol foaming container, which is used to dispense the mixed liquid containing the first and second agents in a foamy form by mixing with air without using a propellant. The use of a foaming container can also prevent the dispensed agents from splashing and dispense a foamy mixture of the first and second agents. In particular, non-aerosol containers allow for more cost-effective product manufacturing compared to aerosol containers and eliminate the need for high-pressure gas propellants, thus ensuring safer product handling during distribution.

[0134] As the foaming container, known pump foaming containers, squeeze foaming containers, electric foamers, and pressure-accumulating pump foaming containers with a foam ejection mechanism can be used. More specifically, examples include the pump foamer E3 and pump foamer F2 (both from Yamato Can Co., Ltd.), squeeze foamers (Yamato Can Co., Ltd.), electric foamers (Panasonic), and air jet foamers (Air Spray International) described in Food and Containers (vol. 35, No. 10, pp. 588-593 (1994); vol. 35, No. 11, pp. 624-627 (1994); vol. 36, No. 3, pp. 154-158 (1995)). As the foaming container used in the hair bleaching or hair dyeing cosmetic of the present invention, pump foaming containers and squeeze foaming containers are preferred due to their low cost and good usability.

[0135] The pump-type foaming container or the squeeze foaming container has a foam-generating part such as a mesh. Since, when the mixed liquid of the first and second agents dries and solidifies, causing clogging, the solidified material can be immediately dissolved by the flow of foam during the next ejection, thereby eliminating the clogging, it is preferred to have a thin-walled mesh. In this case, the mesh opening of the mesh is preferably 50 to 350 meshes, more preferably 70 to 280 meshes, more preferably 90 to 250 meshes, and even more preferably 130 to 220 meshes. Here, mesh refers to the number of holes per inch. By using a mesh with a mesh opening within this range, a creamy foam can be generated. In addition, as the material of such a mesh opening, nylon, polyester, etc. can be preferably exemplified.

[0136] The foaming container used in the hair bleaching or hair dyeing cosmetic of the present invention is provided with at least one such mesh, preferably a plurality, and particularly preferably two from the viewpoints of economy and foam stability.

[0137] In the foaming container, the parts in contact with the contents (container inner wall, foam ejection mechanism inner wall, etc.) are preferably made of a material that is not corroded by alkali and hydrogen peroxide and that allows oxygen generated by decomposition of hydrogen peroxide to pass through.

[0138] As a product form of the hair bleaching or hair dyeing cosmetic product of the present invention comprising a first agent, a second agent, and a foaming container, the first agent and the second agent can be separately filled into a container separate from the foaming container, and both agents can be transferred into the foaming container and mixed during use. Alternatively, one agent can be filled into the foaming container, and the other agent into another container, and the other agent can be transferred into the foaming container during use. In this case, to prevent the pressure in the container from increasing due to oxygen generated by the decomposition of hydrogen peroxide, it is preferable to fill the second agent into an air-permeable container, particularly a foaming container made of an oxygen-permeable material (e.g., polyethylene). On the other hand, to prevent oxidation of the oxidative dye, the first agent needs to be placed in a container that is not easily permeable to oxygen.

[0139] The mixing ratio of the first agent to the second agent in the cosmetic product for hair bleaching or hair dyeing of the present invention is preferably 1:4 to 4:1, more preferably 1:3 to 1:1, by mass ratio.

[0140] [Gas-liquid mixture ratio]

[0141] From the perspective of uniform dyeing and application of the preparation to hair, the air-to-liquid mixture ratio of the air and liquid mixture in the foaming container's foam ejection mechanism is preferably 5 to 40 mL / g, more preferably 6 to 30 mL / g. The air-to-liquid mixture ratio herein is a value measured as follows.

[0142] First, the gas-liquid mixing ratio was determined by measuring the mass and volume of the foam ejected at 25°C. 100g of the mixed liquid was added to an extrusion foaming container (Yamato Can Manufacturing Co., Ltd., capacity 210mL, mesh roughness (mesh): 150 mesh in the mixing chamber (150 cells per inch (25.4mm)), 200 mesh at the tip). From the point when the remaining volume reached 80g, 20g of foam was ejected into a 1000mL graduated cylinder. One minute after the start of ejection, the volume of the foam was measured. The gas-liquid mixing ratio (mL / g) was obtained by dividing the volume (mL) of the ejected foam by the mass (20g).

[0143] [How to use]

[0144] When using the hair bleaching or dyeing cosmetic product of the present invention to bleach or dye hair, it is preferable to comb the hair beforehand. This prevents hair from becoming tangled during the re-foaming process described later, thus eliminating the risk of the mixed solution splashing. Furthermore, after combing the hair, the partitioning process widely used in applying bleaching or dyeing compositions is unnecessary, and preferably, no partitioning process is required. This facilitates the application of the bleaching or dyeing composition to the hair and the re-foaming process described later. Furthermore, this re-foaming process allows the hair bleaching or dyeing cosmetic product of the present invention to achieve a smoother, less unevenly colored finish, even when applied to hair with a hair styling product. Next, the first and second agents of the hair bleaching or dyeing cosmetic product of the present invention are mixed in a foaming container. The foamed product dispensed from the container can be applied directly to the hair, or applied by hand or using a brush or other implement. From the viewpoint of preventing the agent from splashing or dripping, it is more preferable to first take the agent into a (gloved) hand and then apply it to the hair.

[0145] After application, the mixture is left to stand for approximately 3 to 60 minutes, preferably approximately 5 to 45 minutes. To further prevent dripping during this period and allow the mixture to fully penetrate the hair roots, it is preferably re-foamed on the hair. This re-foaming can be done by injecting gas, using a vibrator or brush, or rubbing with the fingers, preferably with the fingers.

[0146] Here, the time for re-foaming can be after the foam has completely disappeared, during the foam disappearance, or before the applied foam changes. Alternatively, it can be after the application is completed within the entire range of the desired application, or in the middle of the application. Re-foaming can be performed continuously once, or intermittently and repeatedly.

[0147] Furthermore, when the foam is re-foamed by kneading with fingers, the viscosity of the foam increases significantly, which can suppress hair frizziness and prevent foam dripping. From the perspective of suppressing hair frizziness and preventing dripping, the viscosity of the foam after kneading is preferably 15 Pa·s or higher, more preferably 22 Pa·s or higher.

[0148] After these operations, the mixed liquid is rinsed. Then, shampoo or conditioner is used as appropriate, and then the hair is washed with water and dried.

[0149] With respect to the above-described embodiments, preferred aspects of the present invention will be further disclosed below.

[0150] <1>

[0151] A cosmetic product for hair bleaching or dyeing, comprising: a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a container for spraying a mixed liquid containing the first and second agents in a foamy form.

[0152] Among all the agents before mixing, including the first agent and the second agent, at least one agent is a solubilizing solution,

[0153] The mixed solution contains the following components (A) to (D), and

[0154] When the component (A) contained in the solubilizing solution before mixing is referred to as the component (A)s, the mass ratio of the component (A)s to the total of the components (A) and (B) (A)s / [(A)+(B)] is 0.079 or less,

[0155] (A) an aliphatic alcohol having 10 to 14 carbon atoms;

[0156] (B) an aliphatic alcohol having 19 to 24 carbon atoms;

[0157] (C) an ionic surfactant;

[0158] (D) A polymer comprising a diallyl quaternary ammonium salt as a structural unit.

[0159] <2>

[0160] In the cosmetic product for hair bleaching or dyeing according to <1>, the alkaline agent is preferably at least one selected from ammonia and salts thereof, alkanolamines and salts thereof, alkylenediamines and salts thereof, and carbonates.

[0161] <3>

[0162] The cosmetic product for hair bleaching or dyeing according to <1> or <2>, wherein the content of the alkaline agent in the mixed solution is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, and even more preferably 2.0% by mass or more, and is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and even more preferably 5% by mass or less.

[0163] <4>

[0164] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <3>, wherein the content of hydrogen peroxide in the mixed liquid is preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, and is preferably 6% by mass or less, more preferably 5% by mass or less.

[0165] <5>

[0166] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <4>, wherein the component (A) is preferably at least one selected from decyl alcohol, dodecanol, and myristyl alcohol, and more preferably contains myristyl alcohol.

[0167] <6>

[0168] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <5>, wherein the content of component (A) in the mixed solution is preferably 0.1% by mass or more, more preferably 0.15% by mass or more, and even more preferably 0.2% by mass or more, and is preferably 2% by mass or less, more preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

[0169] <7>

[0170] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <6>, wherein the component (B) is preferably at least one selected from arachidyl alcohol, behenyl alcohol, and carnaubayl alcohol, and more preferably contains behenyl alcohol.

[0171] <8>

[0172] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <7>, wherein the content of component (B) in the mixed solution is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.2% by mass or more, and is preferably 2% by mass or less, more preferably 1.5% by mass or less, and even more preferably 1% by mass or less.

[0173] <9>

[0174] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <8>, wherein the total content of the aliphatic alcohol in the solubilizing solution is preferably 0.3% by mass or less, more preferably 0.2% by mass or less, even more preferably 0.1% by mass or less, even more preferably 0.05% by mass or less, even more preferably 0.01% by mass or less, even more preferably 0.005% by mass or less, even more preferably 0.001% by mass or less, or the solubilizing solution contains no aliphatic alcohol.

[0175] <10>

[0176] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <9>, wherein, when component (A) contained in the solubilizing solution before mixing is referred to as component (A)s, the mass ratio of component (A)s to the total of component (A) and component (B) (A)s / [(A)+(B)] is preferably 0.07 or less, more preferably 0.06 or less, even more preferably 0.05 or less, even more preferably 0.04 or less, even more preferably 0.03 or less, even more preferably 0.02 or less, even more preferably 0.01 or less, even more preferably 0.005 or less, even more preferably 0.001 or less, even more preferably 0.0005 or less, even more preferably 0.0001 or less, or the solubilizing solution does not contain component (A).

[0177] <11>

[0178] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <10>, wherein the component (C) is at least one selected from the group consisting of a cationic surfactant, an anionic surfactant, and an amphoteric surfactant.

[0179] <12>

[0180] The cosmetic product for hair bleaching or dyeing according to <11>, wherein the cationic surfactant is a combination of a mono-long chain alkylammonium salt represented by the following general formula (2) and a mono-long chain alkylammonium salt represented by the following general formula (3).

[0181]

[0182] [Where R 2 represents a linear alkyl group having 14 to 16 carbon atoms, X - represents anions (chloride ion, bromide ion, iodide ion, sulfate anion, sulfonate anion, methylsulfate anion, phosphate anion, nitrate anion, etc.).]

[0183]

[0184] [Where R 3 represents a linear alkyl group having 18 to 24 carbon atoms, X - Means the same as above.]

[0185] <13>

[0186] The cosmetic product for hair bleaching or dyeing according to <11> or <12>, wherein the anionic surfactant is at least one selected from sulfate anionic surfactants, carboxylic acid anionic surfactants, sulfonic acid anionic surfactants, and phosphate anionic surfactants, and more preferably at least one selected from carboxylic acid anionic surfactants and sulfate anionic surfactants.

[0187] <14>

[0188] The cosmetic product for hair bleaching or dyeing according to any one of <11> to <13>, wherein the amphoteric surfactant is preferably at least one surfactant selected from the group consisting of carbonyl betaines, amido betaines, sulfobetaines, hydroxysulfobetaines, amidosulfobetaines, phosphate betaines, and imidazolinium surfactants having an alkyl, alkenyl, or acyl group having 8 to 24 carbon atoms, more preferably at least one surfactant selected from the group consisting of carbonyl betaine surfactants and sulfobetaine surfactants, and even more preferably at least one surfactant selected from the group consisting of lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl dimethylaminoacetic acid betaine, and lauryl hydroxysulfobetaine.

[0189] <15>

[0190] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <14>, wherein the content of component (C) in the mixed solution is preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 1.5% by mass or more, even more preferably 2% by mass or more, and is preferably 7% by mass or less, more preferably 5% by mass or less, even more preferably 4% by mass or less, and even more preferably 3% by mass or less.

[0191] <16>

[0192] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <15>, wherein the charge density of component (D) is preferably 4.0 meq / g or more, more preferably 4.3 meq / g or more, even more preferably 4.6 meq / g or more, even more preferably 4.9 meq / g or more, even more preferably 5.2 meq / g or more, even more preferably 5.5 meq / g or more, and is preferably 8.0 meq / g or less, more preferably 7.0 meq / g or less, even more preferably 6.5 meq / g or less.

[0193] <17>

[0194] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <16>, wherein the component (D) is at least one selected from a homopolymer of a diallyl quaternary ammonium salt and a copolymer of a diallyl quaternary ammonium salt and acrylic acid.

[0195] <18>

[0196] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <17>, wherein the content of component (D) in the mixed solution is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.4% by mass or more, and is preferably 2% by mass or less, more preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

[0197] <19>

[0198] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <18>, further comprising a nonionic surfactant as component (E) in the mixed liquid, wherein the nonionic surfactant is at least one selected from the group consisting of polyoxyalkylene alkyl ethers, alkyl alkanolamides, polyoxyalkylene alkylamines, alkyl polyglucosides, and alkyl glyceryl ethers, and more preferably a polyoxyalkylene alkyl ether.

[0199] <20>

[0200] The cosmetic product for hair bleaching or dyeing according to <19>, wherein the polyoxyalkylene alkyl ether is a compound represented by the following general formula (6).

[0201] R 8 -O-(AO) r -H(6)

[0202] [Where R 8 represents a linear or branched saturated or unsaturated hydrocarbon group having 12 to 18 carbon atoms, A represents an ethylene group, and r is an average value and represents a number from 10 to 160.]

[0203] <21>

[0204] The cosmetic product for hair bleaching or dyeing according to <20>, comprising, as polyoxyalkylene alkyl ether, a component (E1) in which r is from 1 to 79, and a component (E2) in which r is from 80 to 250, wherein r in component (E1) is from 30 to 50, and r in component (E2) is from 120 to 180.

[0205] <22>

[0206] The cosmetic product for hair bleaching or dyeing according to any one of <19> to <21>, wherein the content of component (E) in the mixed solution is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more, and is preferably 3% by mass or less, more preferably 2% by mass or less, and even more preferably 1% by mass or less.

[0207] <23>

[0208] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <22>, further comprising an oil selected from hydrocarbons, glycerides, waxes, esters, higher fatty acids, isostearyl glyceryl ether, higher alcohols other than components (A) and (B), and polyoxypropylene butyl ether in the mixed liquid.

[0209] <24>

[0210] The cosmetic product for hair bleaching or dyeing according to <23>, wherein the content of the oily agent in the mixed liquid is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, and even more preferably 0.05% by mass or more, and is preferably 3% by mass or less, more preferably 2.5% by mass or less, and even more preferably 2% by mass or less.

[0211] <25>

[0212] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <24>, further comprising, as a nonvolatile hydrophilic solvent, one or more selected from polyols having 2 to 6 carbon atoms and lower (1 to 4 carbon atoms) alkyl ethers thereof in the mixed liquid.

[0213] <26>

[0214] The cosmetic product for hair bleaching or dyeing according to <25>, wherein the content of the non-volatile hydrophilic solvent in the mixed liquid is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and even more preferably 1% by mass or more, and is preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, and even more preferably 2% by mass or less.

[0215] <27>

[0216] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <26>, wherein the viscosity of the foam discharged from the container from the time of discharge to application is preferably 15 Pa·s or less, more preferably 13 Pa·s or less, and even more preferably 10 Pa·s or less, and is preferably 0.5 Pa·s or more, more preferably 1.0 Pa·s or more, more preferably 3.0 Pa·s or more, more preferably 4.0 Pa·s or more, and even more preferably 5.0 Pa·s or more.

[0217] <28>

[0218] The cosmetic product for hair bleaching or dyeing according to any one of <1> to <27>, wherein the container is a non-aerosol foaming container.

[0219] <29>

[0220] A method for hair bleaching or dyeing, comprising: using the cosmetic for hair bleaching or dyeing according to any one of <1> to <28>, spraying a mixed solution containing the first agent and the second agent from a container in the form of foam, and applying the foam to the hair by hand.

[0221] <30>

[0222] The hair bleaching or dyeing method according to <29>, wherein the foam ejected from the container is applied to the hair and then rubbed with fingers, and the viscosity of the foam after rubbing is preferably 22 Pa·s or more, more preferably 22.5 Pa·s or more.

[0223] Example

[0224] Examples 1 to 8, Comparative Example 1

[0225] The first agent (solubilizing solution) and the second agent (emulsion) of the formulation shown in Table 2 were prepared and mixed at a mass ratio of 1:1.5 to prepare a mixed solution. The mixture was prepared by using an extrusion foamer (Yamato Can Manufacturing Co., Ltd., volume 210 mL, mesh roughness of 150 mesh in the mixing chamber and 200 mesh at the front end, and the total opening area of ​​the narrowest part of the air introduction path was 0.35 mm). 2 , the inner diameter of the dip tube is φ1.75mm), the mixed liquid is sprayed in a foamy state, and the following evaluation is performed.

[0226] 1. Foam permeability evaluation

[0227] (Evaluation method)

[0228] A professional evaluator dispensed one push (approximately 3g) of foam from the squeeze foam container into their hand and applied the foam three times to a mannequin with medium-length hair, starting from the crown of the head and moving toward the tips of the hair approximately 20cm away. This action was repeated twice. Using the pointed handle of a standard comb (pointed-tail comb), the inner side of the head was sectioned approximately 5cm from the crown (parting the hair and opening the inner side). The penetration of the foam was visually inspected and evaluated according to the following criteria. The results are shown in Table 2.

[0229] (Evaluation Criteria)

[0230] A: Can be evenly applied to the inside

[0231] B: Although uneven, the foam can be applied locally to about half of the surface.

[0232] C: Although uneven, the foam can be applied locally everywhere

[0233] D: Although a small amount of foam penetrates, it is almost impossible to apply

[0234] E: All foams are not penetrated

[0235] 2. Evaluation of sebum resistance

[0236] (Evaluation method)

[0237] About 0.8 g of tricaprylin as a simulated sebum and 0.6 g of "Liese Playful Care Oil" manufactured by Kao Corporation as a general hair oil were applied to the entire scalp of a human model having medium-length hair.

[0238] Professional evaluators dispensed foam from the aforementioned squeeze foam container and applied it to a mannequin while dispensing the foam. A total of 80 g (a mixture of 32 g of the first dose and 48 g of the second dose) was applied and rubbed for several seconds. The foam was then left at room temperature for 20 minutes. The hair was then sectioned and the remaining foam was confirmed. Evaluations were performed based on the following criteria. The results are shown in Table 2.

[0239] (Evaluation Criteria)

[0240] A: Foam remains evenly on the inside

[0241] B: Some foam disappears, and the foam remains unevenly

[0242] C: The foam almost disappears, with no foam remaining

[0243] D: No foam residue or dripping

[0244] 3. Evaluation of foam viscosity

[0245] (Evaluation method)

[0246] Dispense approximately 10g of foam from the squeeze foam container onto a wig with a length of approximately 1-2cm. Apply the foam thoroughly to the wig, blending it into the hair. Then, rub the foam into the wig until the viscosity reaches saturation.

[0247] The sprayed foam (a), the thoroughly applied foam (b), and the thoroughly kneaded foam (c) were transferred to beakers and the foam viscosities were measured using a B-type viscometer (screw type, TC, 10 rpm, 1 minute).

[0248] (Evaluation Criteria)

[0249] The values ​​of the foam viscosities in the three cases were rated as "OK" or "NG" according to the following criteria, and were ranked as A to D as shown in Table 1. The results are shown in Table 2.

[0250] (a): OK if it is less than 10Pa·s, NG if it exceeds 10Pa·s

[0251] (b): If it is 15Pa·s or less, it is OK; if it exceeds 15Pa·s, it is NG

[0252] (c): If it is 22Pa·s or more, it is OK; if it is less than 22Pa·s, it is NG

[0253] [Table 1]

[0254] A B B~C C C D D (a) OK OK OF OK OF OF OF (b) OK OK OK OF OK OF OF (c) OK OF OK OK OF OK OF

[0255] [Table 2]

[0256]

[0257] *1: Kalcol 4098 (manufactured by Kao Corporation)

[0258] *2: Amisoft CS22B (manufactured by Kao Corporation)

[0259] *3: Emal 227pH11 (manufactured by Kao Corporation)

[0260] *4: Merquat 295 (manufactured by Lubrizol Advanced Materials, Inc.) *5: Adeka Carpol DL-30 (manufactured by ADEKA Corporation)

[0261] *6: Kalcol 220-80 (manufactured by Kao Corporation)

[0262] *7: Quartamin 60W (manufactured by Kao Corporation)

[0263] *8: Quartamin 86W (manufactured by Kao Corporation)

[0264] *9: Nikkol BC-150 (manufactured by Nikko Chemicals Co., Ltd.)

[0265] *10: Nikkol BC-40TX (manufactured by Nikko Chemicals Co., Ltd.) *11: 18MEA-SO-(RB) (manufactured by Croda Corporation)

[0266] *12: Dequest 2010CS (manufactured by Italmatch Japan Ltd.)

Claims

1. A cosmetic for hair bleaching or dyeing, wherein: The hair bleaching or hair dyeing cosmetic comprises: a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a container for spraying a mixed liquid containing the first and second agents in a foamy form. Among all the agents before mixing, including the first agent and the second agent, at least one agent is a solubilizing solution, The mixed solution contains the following components (A) to (D), and when the component (A) contained in the solubilizing solution before mixing is referred to as component (A)s, the mass ratio of component (A)s to the total of component (A) and component (B) (A)s / [(A)+(B)] is 0.079 or less, (A) an aliphatic alcohol having 10 to 14 carbon atoms; (B) an aliphatic alcohol having 19 to 24 carbon atoms; (C) an ionic surfactant; (D) A polymer comprising a diallyl quaternary ammonium salt as a structural unit.

2. The cosmetic product for hair bleaching or dyeing according to claim 1, wherein The content of the aliphatic alcohol in the dissolution aid solution is 0.3% by mass or less.

3. The cosmetic product for hair bleaching or hair dyeing according to claim 1 or 2, wherein The container is a non-aerosol foam container.

4. A method for hair decolorization or dyeing, wherein: The cosmetic product for hair bleaching or dyeing according to any one of claims 1 to 3 is used to spray a mixed solution containing the first agent and the second agent in the form of foam from a container, and the foam is applied to the hair by hand.

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