First agent for oxidative hair dyeing and hair dyeing treatment method
The first agent for oxidative hair dyeing, combining oxidative dye, surfactant, and water, addresses the challenge of dyeing diverse hair types by improving dye penetration and dyeing properties, resulting in uniform color results across different hair conditions.
Patent Information
- Application Number
- JP2024064351
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-10-24
AI Technical Summary
Existing oxidative hair dyes are not suitable for dyeing various types of hair, including chemically and physically damaged hair, healthy hair, hard hair, and soft hair, as they lack versatility in dyeing properties and compatibility with different hair conditions.
A first agent for oxidative hair dyeing comprising an oxidative dye, surfactant, and water, which can be mixed with a second agent containing an oxidizing agent to create an oxidative hair dye suitable for diverse hair types, with specific formulations and ratios to optimize dyeing properties.
The first agent enables effective dyeing of various hair types by enhancing dye penetration and compatibility, ensuring uniform color tone, saturation, and brightness across different hair conditions.
Smart Images
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Abstract
Description
[Technical Field]
[0001] The present invention relates to a first agent for oxidative hair dyeing and a hair dyeing method. [Background technology]
[0002] Oxidative hair dyes used to dye hair are a mixture of an oxidative dye first agent containing an oxidative dye and an oxidizing agent second agent containing an oxidizing agent. These oxidative hair dyes work by penetrating the oxidative dye into the hair through oxidative polymerization, and can maintain hair color for a longer period of time compared to hair coloring agents such as acidic hair dyes.
[0003] The hair to be dyed with an oxidation hair dye varies widely, including hair damaged by chemical treatments such as oxidation hair dyeing or straightening, hair damaged by physical treatments such as brushing, hair with no history of chemical treatment, healthy hair, hard hair, and soft hair, and an oxidation hair dye that can be used on all these types of hair is required. Therefore, a first agent for oxidation hair dyeing is required to obtain such an oxidation hair dye. Summary of the Invention [Problem to be solved by the invention]
[0004] In view of the above circumstances, the present invention aims to provide a first agent for oxidative hair dyeing that can be used for dyeing various types of hair, and a hair dyeing method that uses this first agent. [Means for solving the problem]
[0005] The first agent for oxidative hair dyeing according to the present invention is used by mixing it with a second agent for oxidative hair dyeing containing an oxidizing agent, and is a first agent for oxidative hair dyeing containing an oxidizing dye, a surfactant, and water.
[0006] The hair dyeing method according to the present invention is a hair dyeing method that uses the first agent for oxidative hair dyeing according to the present invention. [Effects of the Invention]
[0007] The first agent for oxidative hair dyeing according to the present invention contains an oxidative dye, a surfactant, and water, and can be mixed with a second agent for oxidative hair dyeing containing an oxidizing agent to be used as an oxidative hair dye, thereby enabling dyeing of various types of hair.
[0008] Furthermore, according to the hair dyeing method of the present invention, the first agent for oxidative hair dyeing, which is mixed with the second agent for oxidative hair dyeing containing an oxidizing agent, contains an oxidative dye, a surfactant, and water, so that various types of hair can be dyed. DETAILED DESCRIPTION OF THE INVENTION
[0009] The present invention will be described below based on an embodiment of the present invention (hereinafter referred to as "the present embodiment"). The first agent for oxidative hair dyeing of this embodiment (hereinafter sometimes referred to as "first agent") is mixed with the second agent for oxidative hair dyeing (hereinafter sometimes referred to as "second agent"), and the oxidative hair dye obtained by this mixture is used in the hair dyeing treatment method.
[0010] (First agent) The first agent of this embodiment is a blend of an oxidative dye, a surfactant, and water (the blending amount of water is, for example, 70 mass % or more). Furthermore, known raw materials for the first agent may be blended as optional raw materials into the first agent of this embodiment.
[0011] The combination and amount of the oxidative dyes blended in the first agent of this embodiment are appropriately set to optimize the dyeing properties on hair, such as color tone, saturation, brightness, and deep dyeing ability.
[0012] The oxidation dye to be blended in the first agent is one or more selected from known dye intermediates that independently develop color upon oxidation, with or without a coupler, as described below. Examples of dye intermediates include phenylenediamine derivatives such as toluene-2,5-diamine hydrochloride, toluene-2,5-diamine sulfate, toluene-2,5-diamine, nitroparaphenylenediamine hydrochloride, nitroparaphenylenediamine, and paraphenylenediamine; phenol derivatives such as 2,4-diaminophenol hydrochloride, orthoaminophenol sulfate, orthoaminophenol, paraaminophenol sulfate, and paraaminophenol; pyrazole derivatives such as 1-hydroxyethyl-4,5-aminopyrazole sulfate; and 2,2'-[(4-aminophenyl)imino]bisethanol sulfate.
[0013] The oxidation dye in the first agent may be one or more of known couplers that react with the dye intermediate to produce a color tone, with or without being combined with the dye intermediate. Examples of couplers include phenylenediamine derivatives such as 2,4-diaminophenoxyethanol hydrochloride, metaphenylenediamine hydrochloride, and metaphenylenediamine; aminophenol derivatives such as 5-aminoorthocresol sulfate, 5-aminoorthocresol, 5-(2-hydroxyethylamino)-2-methylphenol, and metaaminophenol; resorcinol; and α-naphthol.
[0014] The blending amount of the oxidative dye in the first agent of this embodiment should be set appropriately, but is, for example, 0.01% by mass or more and 10% by mass or less.
[0015] As the surfactant to be blended in the first agent, one or more surfactants selected from known nonionic surfactants, cationic surfactants, anionic surfactants and amphoteric surfactants are used.
[0016] When a nonionic surfactant is blended into the first agent of this embodiment, examples of the nonionic surfactant include polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol tetra fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, polyglycerin fatty acid esters, and sucrose fatty acid esters. One or more nonionic surfactants may be blended into the first agent, and the blending amount of the nonionic surfactant should be set appropriately, but is, for example, 0.1% by mass to 10% by mass.
[0017] When a cationic surfactant is blended into the first agent of this embodiment, examples of the cationic surfactant include quaternary ammonium salts such as long-chain alkyl trimethyl ammonium salts, di-long-chain alkyl dimethyl ammonium salts, and mono-alkyl ether type quaternary ammonium salts. One or more cationic surfactants may be blended into the first agent, and the blending amount of the cationic surfactant should be set appropriately, but is, for example, 0.5% by mass to 8% by mass.
[0018] When an anionic surfactant is blended into the first agent of this embodiment, examples of the anionic surfactant include coconut oil fatty acid salts, polyoxyethylene alkyl ether acetate salts, N-acyl glutamates, N-acyl methyl alanine salts, fatty acid methyl taurines, tetradecene sulfonates, lauryl sulfates, polyoxyethylene alkyl ether sulfates, dialkyl phosphates, dialkenyl phosphates, polyoxyethylene alkyl ether phosphates, and polyoxyethylene alkenyl ether phosphates. One or more anionic surfactants may be blended into the first agent, and the blending amount of the anionic surfactant should be set appropriately, but is, for example, 0.1% by mass to 8% by mass.
[0019] When an amphoteric surfactant is blended into the first agent of this embodiment, examples of the amphoteric surfactant include acetic acid betaine-type amphoteric surfactants such as alkyl dimethyl amino acetic acid betaine, fatty acid amidopropyl dimethyl amino acetic acid betaine, and alkyl dihydroxyethyl amino acetic acid betaine; sulfobetaine-type amphoteric surfactants such as N-alkyl-N,N-dimethylammonium-N-propyl sulfonate, N-alkyl-N,N-dimethylammonium-N-(2-hydroxypropyl) sulfonate, and N-fatty acid amidopropyl-N,N-dimethylammonium-N-(2-hydroxypropyl) sulfonate; and imidazoline betaine-type amphoteric surfactants such as 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine. It is preferable to blend one or more amphoteric surfactants into the first agent. The amount of amphoteric surfactant blended should be appropriately set, but is, for example, 0.05% by mass or more and 5% by mass or less.
[0020] Examples of known first agent raw materials that may be optionally blended into the first agent of this embodiment include alkaline agents, direct dyes, higher alcohols, polyhydric alcohols, sugars, ester oils, fats and oils, fatty acids, hydrocarbons, waxes, silicones, polymeric compounds, amino acids, animal and plant extracts, microbial-derived substances, inorganic compounds, fragrances, preservatives, sequestering agents, and ultraviolet absorbers.
[0021] When an alkaline agent is blended into the first agent, it promotes the action of the oxidizing agent in the oxidation hair dye obtained by mixing with the second agent, and improves the penetration and dyeability of the oxidation dye into the hair. One or more types of known alkaline agents are blended into the first agent of this embodiment, and examples of alkaline agents include metal hydroxides such as sodium hydroxide and potassium hydroxide; metal carbonates such as sodium carbonate and potassium carbonate; metal phosphates such as sodium phosphate; ammonia water; ammonium salts such as ammonium carbonate, ammonium bicarbonate, ammonium sulfate, and ammonium chloride; and alkanolamines such as monoethanolamine, triethanolamine, isopropanolamine, and 2-amino-2-methyl-1-propanol.
[0022] The amount of alkaline agent to be added to the first agent of this embodiment should be set appropriately, but is, for example, an amount that results in a free alkali amount of 5 ml to 20 ml. Here, the "free alkali amount" is the amount of 0.1 N hydrochloric acid solution added dropwise when 100 ml of water, 1.0 g of the first agent, and 10 ml of ethanol are mixed and titrated with 0.1 N hydrochloric acid solution to give a pH of 4.8.
[0023] The pH of the first agent of this embodiment at 25°C should be set appropriately, for example, between 5 and 13. To improve the penetration and dyeability of the oxidative dye into the hair, the pH should be 7 or higher, and preferably 8 or higher. The pH can be adjusted by adding an alkaline agent.
[0024] The formulation of the first agent according to this embodiment is not particularly limited and may be, for example, an oil-in-water emulsion such as a liquid, cream, wax, gel, etc. The viscosity of the first agent is, for example, 10,000 mPa s or more and 60,000 mPa s or less, measured after 60 seconds at 25°C and 12 rpm using a Brookfield viscometer.
[0025] (Second agent) The second agent of this embodiment is a blend of an oxidizing agent and water (the blending amount of water is, for example, 70 mass % or more). Also, known raw materials for the second agent may be blended as optional raw materials into the second agent of this embodiment.
[0026] The oxidizing agent blended in the second agent accelerates the oxidative polymerization of the oxidation dye and improves dyeability. This oxidizing agent may be selected from one or more known oxidizing agents, such as hydrogen peroxide, bromates, percarbonates, and perborates. The blending amount of the oxidizing agent in the second agent of this embodiment should be appropriately determined, but is, for example, 1% by mass or more and 7% by mass or less.
[0027] Examples of known second agent raw materials that may be optionally blended into the second agent of this embodiment include nonionic surfactants, cationic surfactants, anionic surfactants, amphoteric surfactants, higher alcohols, polyhydric alcohols, sugars, ester oils, fats and oils, fatty acids, hydrocarbons, waxes, silicones, polymeric compounds, amino acids, animal and plant extracts, microbial-derived substances, inorganic compounds, fragrances, preservatives, sequestering agents, and ultraviolet absorbers.
[0028] When hydrogen peroxide is blended as an oxidizing agent, the pH of the second agent according to this embodiment at 25°C is, for example, from 1 to 4. The pH can be adjusted by blending a pH adjuster such as an organic acid, an organic acid salt, an inorganic acid, or an inorganic acid salt.
[0029] The dosage form of the second agent according to this embodiment is not particularly limited, and examples thereof include oil-in-water emulsions such as liquids, creams, gels, etc. The viscosity of the second agent is, for example, 2000 mPa s or more and 15000 mPa s or less after 60 seconds as measured at 25°C and 12 rpm using a Brookfield viscometer.
[0030] (oxidative hair dye) The oxidation hair dye of this embodiment is obtained by mixing the first and second agents of this embodiment described above. The mass ratio of this mixture is, for example, first agent:second agent=1:0.5 or more and 3 or less.
[0031] The lower limit of the pH of the oxidative hair dye according to this embodiment at 25°C should be set appropriately, but is, for example, a pH of 5 or higher, and in order to promote penetration of the oxidative dye into the interior of the hair, a pH of 8 or higher is preferable. On the other hand, the upper limit of the pH should also be set appropriately, but a pH of 12 or lower is preferable for suppressing irritation to the skin.
[0032] The dosage form of the oxidative hair dye according to the present embodiment when used is not particularly limited, and examples thereof include liquid, cream, wax, gel, and foam (foam). In consideration of handling such as application to hair and dripping during use, the oxidative hair dye according to the present embodiment is preferably in cream form.
[0033] (Hair dyeing method) The hair dyeing method of the present embodiment, like known hair dyeing methods, involves applying the oxidative hair dye of the present embodiment to hair, followed by washing and removing the oxidative hair dye. The hair to be dyed includes various types of hair, such as chemically damaged hair (hair that has been dyed with an oxidative hair dye, hair that has been permed by straightening or waving, etc.), hair that has been physically damaged by brushing, healthy hair, terminal hair, and soft hair.
[0034] Specific formulation examples of the first agent, the second agent, and the oxidation hair dye of this embodiment are shown below, but the present invention is not limited to these formulation examples of the first agent, the second agent, and the oxidation hair dye. Furthermore, it is naturally possible to add, delete, or substitute ingredients in the formulation examples below, or to change the amounts of the ingredients.
[0035] (Example of prescription for the first drug) An example formulation for the first agent is a cream-like oil-in-water emulsion with a pH of 5 to 13 at 25°C and a viscosity of 10,000 mPa·s to 60,000 mPa·s after 60 seconds measured at 25°C and 12 rpm using a Brookfield viscometer.
[0036] The prescription examples of the first agent are combinations of ingredients A1 to A14 in Table 1 below and ingredients B1 to B80 in Tables 2-1 to 2-7, and the combinations are as shown in prescription example A1-1 etc. in Tables 3-1 to 3-3 below (prescription examples A1-1 to A1-62, prescription examples A2-1 to A2-62, prescription examples A3-1 to A3-62, prescription examples A4-1 to A4-62, prescription examples A5-1 to A5-24, prescription examples A6-1 to A6-24, prescription examples A7-1 to A7-24, prescription examples A8-1 to A8-24, prescription examples A9-1 to A9-24, prescription examples A10-1 to A10-24, prescription examples A11-1 to A11-24, prescription examples A12-1 to A12-24, prescription examples A13-1 to A13-32). The units of the blending amount of each component in the first pack are those shown at the bottom of Table 1 and Tables 2-1 to 2-7 below.
[0037] The ingredients in the formulation examples of the first agent other than purified water are listed in Table 1 and Tables 2-1 to 2-7 below, and include para-aminophenol, 2,2'-[(4-aminophenyl)imino]bisethanol sulfate, para-phenylenediamine, toluene-2,5-diamine, resorcinol, meta-aminophenol, 2,6-diaminopyridine, 2,4-diaminophenoxyethanol hydrochloride, 5-amino-o-cresol, 5-(2-hydroxyethylamino)-2-methylphenol, α-naphthol, cetanol, stearyl alcohol, a product containing dicetyl phosphate ("SP CRODAFOS CES MBAL-PA-(MH)" manufactured by Croda Japan), polyoxyethylene cetyl ether (10 E.O.), polyoxyethylene cetyl ether (30 E.O.), polyoxyethylene cetyl ether (150 E.O.), propylene glycol, polyethylene glycol (average number of moles of ethylene oxide added: 20), xanthan gum ("KELTROL" manufactured by Sansho Co., Ltd.). CG-BT"), sodium sulfite anhydride, ascorbic acid, ethylenediaminehydroxyethyltriacetate trisodium dihydrate, hydroxyethanediphosphonic acid tetrasodium, ammonium bicarbonate, 25% by mass aqueous ammonia solution, phenoxyethanol, and fragrance. In the table below, "POE" stands for "polyoxyethylene," and the number immediately before "EO" represents the average number of moles of ethylene oxide added.
[0038] [Table 1]
[0039] [Table 2-1]
[0040] [Table 2-2]
[0041] [Table 2-3]
[0042] [Table 2-4]
[0043] [Table 2-5]
[0044] [Table 2-6]
[0045] [Table 2-7]
[0046] [Table 3-1]
[0047] [Table 3-2]
[0048] [Table 3-3]
[0049] (Example of prescription for second drug) There are two formulation examples for the second agent, as shown in the formulation examples Ox1 and Ox2 below. Both formulation examples are viscous liquid oil-in-water emulsions with a pH of 1 to 4 at 25°C and a viscosity of 2000 mPa s to 15000 mPa s after 60 seconds, measured at 25°C and 12 rpm using a Brookfield viscometer.
[0050] Prescription example Ox1 Hydrogen peroxide 3% by mass Cetyltrimethylammonium chloride 0.3% by mass Polyoxyethylene cetyl ether (30E.O.) 1% by mass Polyoxyethylene stearyl ether (2E.O.) 0.5% by mass Polyoxypropylene stearyl ether (15P.O.) 1% by mass Cetyl alcohol 1% by mass Stearyl alcohol 3% by mass Liquid paraffin ("FOMI-70" manufactured by Misho Oil Industries Co., Ltd.) 0.5% by mass Liquid paraffin (Kaneda "Hicol K-230") 0.5% by mass Light lanolin fatty acid cholesteryl 0.1% by mass White beeswax 0.5% by mass Phenoxyethanol 0.1% by mass Hydroxyethanediphosphonic acid liquid 0.05% by mass Tetrasodium hydroxyethanediphosphonate solution 0.05% by mass Purified water (amount to make the total amount 100% by mass)
[0051] Prescription example Ox2 Hydrogen peroxide 6% by mass Cetyltrimethylammonium chloride 0.3% by mass Polyoxyethylene cetyl ether (30E.O.) 1% by mass Polyoxyethylene stearyl ether (2E.O.) 0.5% by mass Polyoxypropylene stearyl ether (15P.O.) 1% by mass Cetyl alcohol 1% by mass Stearyl alcohol 3% by mass Liquid paraffin ("FOMI-70" manufactured by Misho Oil Industries Co., Ltd.) 0.5% by mass Liquid paraffin (Kaneda "Hicol K-230") 0.5% by mass Light lanolin fatty acid cholesteryl 0.1% by mass White beeswax 0.5% by mass Phenoxyethanol 0.1% by mass Hydroxyethanediphosphonic acid liquid 0.05% by mass Tetrasodium hydroxyethanediphosphonate solution 0.05% by mass Purified water (amount to make the total amount 100% by mass)
[0052] (Example of an oxidation hair dye formulation) The formulation example of the oxidation hair dye is an oxidation hair dye in which the first and second agents shown in the following (1) to (3) are mixed. (1) An oxidation hair dye obtained by mixing any one of the first agent formulation examples in Tables 3-1 to 3-3 above with second agent formulation example Ox1 in a mass ratio of first agent formulation example:second agent formulation example Ox1 = 1:1 (the mixed combinations of second agent formulation example Ox1 include all patterns of each first agent formulation example in Tables 3-1 to 3-3 above). (2) An oxidation hair dye obtained by mixing any of the first agent formulation examples in Tables 3-1 to 3-3 above with second agent formulation example Ox2 in a mass ratio of first agent formulation example:second agent formulation example Ox2 = 1:1 (the mixed combinations of second agent formulation example Ox2 include all patterns of each first agent formulation example in Tables 3-1 to 3-3 above). (3) An oxidation hair dye obtained by mixing any one of the first agent formulation examples in Tables 3-1 to 3-3 above with second agent formulation example Ox2 in a mass ratio of first agent formulation example:second agent formulation example Ox2 = 1:2 (the mixed combinations of second agent formulation example Ox2 include all patterns of each first agent formulation example in Tables 3-1 to 3-3 above).
Claims
1. The first agent for oxidative hair dyeing is used by mixing with a second agent for oxidative hair dyeing containing an oxidizing agent, and contains an oxidative dye, a surfactant, and water.
2. A hair dyeing method using the first agent for oxidative hair dyeing according to claim 1.