KR20240021795A - First composition for hair dyeing or hair bleaching - Google Patents

Abstract

The purpose of the present invention is to provide a hair dyeing or hair bleaching product that has excellent usability (ease of mixing and application) when mixed with a second agent, can be uniformly applied to hair, and enables uniform hair dyeing up to the roots. To provide a first agent composition. The present invention relates to a first agent composition for hair dyeing or hair bleaching used in combination with a second agent composition comprising an oxidizing agent, wherein the first agent composition comprises: (A) at least one selected from the group consisting of kaolin, mica and talc; , (B) at least one surfactant, and (C) an oil component, wherein (B) at least one surfactant includes a nonionic surfactant, and (C) the oil component is a high grade solid at 25°C. It relates to a first agent composition comprising alcohol and an oiling agent that is liquid at 25°C, wherein the first agent composition has a viscosity at 20°C of 5,000 mPa·s to 70,000 mPa·s.

Description

First composition for hair dyeing or hair bleaching

The present invention relates to a first agent composition for hair dyeing or hair bleaching, used in combination with a second agent composition comprising an oxidizing agent.

For hair dyeing and bleaching, oxidizing hair dyes or bleaching agents that dye or bleach hair by an oxidation reaction in the coexistence of an alkali agent and an oxidizing agent are widely used. Hair dyes and bleaching agents are needed to provide a uniform finish across the entire hair, but preventing shedding during the hair's standing time after application has been a conventional challenge. As a hair dye to solve this problem, for example, Patent Document 1 discloses a hair dye in which a water-insoluble mineral and a water-soluble polymer are blended to suppress adhesion to the scalp after application to the hair.

Citation List

patent literature

Patent Document 1: JP 2010-229106 A

However, the hair dye described in the patent document is intended to improve fixation on hair by increasing the viscosity of the agent by blending water-insoluble minerals and water-soluble polymers, and the usability and handleability of the agent are improved, especially when used as a two-part hair dye. It may be inferior in terms of mixing and applicability to hair. As a result, the formulation is difficult to adhere uniformly to the entire hair, causes uneven dyeing finish, etc., and the hair dyeing effect is not always satisfactory.

The purpose of the present invention is to provide a hair dyeing or hair bleaching agent that has excellent usability (ease of mixing and application) when used in combination with a second agent, can be uniformly applied to hair, and enables uniform dyeing up to the roots. To provide a first agent composition.

Summary of the Invention

The present inventors conducted detailed studies to solve the above problems and completed the present invention. That is, the present invention includes the following preferred embodiments.

[1] A first agent composition for hair dyeing or hair bleaching used in combination with a second agent composition containing an oxidizing agent, the first agent composition comprising:

(A) at least one selected from the group consisting of kaolin, mica and talc,

(B) at least one surfactant, and

(C) Oil composition

Includes,

here

(B) at least one surfactant comprises a nonionic surfactant,

(C) The oil component includes a higher alcohol that is solid at 25°C and an oiling agent that is liquid at 25°C,

The first composition has a viscosity at 20°C of 5,000 mPa·s to 70,000 mPa·s.

[2] (B) The first agent composition according to [1], wherein at least one surfactant further comprises an anionic surfactant.

[3] (B) The first agent composition according to [1] or [2], wherein at least one surfactant includes a phosphoric acid-based anionic surfactant.

[4] The first agent composition according to any one of [1] to [3], wherein the content of (A) is 0.1 to 20% by mass based on the total mass of the first agent composition.

[5] The first agent composition according to any one of [1] to [4], comprising kaolin as (A).

[6] (D) The first agent composition according to any one of [1] to [5], further comprising ammonia.

According to the present invention, when used in combination with a second agent, it has excellent usability (ease of mixing and application), can be uniformly applied to the hair, and is a hair dyeing or hair bleaching agent that enables uniform dyeing up to the roots. A first agent composition can be provided.

Description of Embodiments

In the following, embodiments of the present invention will be described in detail. The scope of the invention is not limited to the embodiments described herein, and various modifications may be made without detracting from the gist of the invention.

The first agent composition of the present invention is a first agent composition for hair dyeing or hair bleaching used in combination with a second agent composition containing an oxidizing agent. The first composition of the present invention contains (A) at least one selected from the group consisting of kaolin, mica and talc (hereinafter also referred to as “component (A)”).

The first composition of the present invention containing component (A) can be suitably used to prepare a hair dye or hair bleaching agent that provides a uniform hair dyeing effect to hair. In particular, for example, when a hair dye for gray hair is applied to the roots of the hair and left for a predetermined period of time, if the roots become lifted, undyed hair tends to remain and the finish is uneven. The first composition of the present invention containing component (A) has a high effect of suppressing the flaking of hair, especially the root portion, and while a hair dye containing the same is applied to the hair and left for a predetermined time, the hair dye is applied to the root portion. It can remain uniformly attached. This makes it harder for undyed hair to remain at the roots and results in a more even finish with less unevenness. In addition, the first composition of the present invention containing component (A), in addition to the excellent hair dyeing effect, can provide good adhesion to the entire hair and hair ends after hair-dying treatment.

Component (A) may contain only one selected from the group consisting of kaolin, mica, and talc, or may contain a combination of two or more selected from the group consisting of kaolin, mica, and talc. From the viewpoint that the effect of suppressing the lifting of the root portion during application is more easily improved, it is preferable that the composition contains kaolin as component (A), and especially when the first agent composition is an emulsified composition, its emulsified state and has excellent storage stability.

The content of component (A) is preferably 0.1% by mass or more and 20% by mass or less based on the total mass of the first agent composition. When the content of component (A) is within the above range, good usability and application properties of the formulation and high hair dyeing effect are also easily achieved. The content of component (A) is more preferably 0.5% by mass or more, more preferably 1% by mass or more, particularly preferably 2% by mass or more, based on the total mass of the first agent composition, and in one embodiment, It may exceed 4% by mass. Furthermore, based on the total mass of the first agent composition, it is more preferably 18 mass% or less, further preferably 15 mass% or less, and particularly preferably 12 mass% or less. When the content of component (A) is above the lower limit, lifting of the root portion during application is more easily suppressed. Additionally, when the content of component (A) is below the above upper limit, a first agent composition having not only excellent stability but also good miscibility and usability when mixed with the second agent composition can be easily obtained.

The first agent composition of the present invention contains (B) at least one surfactant (hereinafter also referred to as “component (B)”). The first agent composition of the present invention contains at least one nonionic surfactant (B1) as component (B). By blending component (A), the formulation tends to become solid. When component (A) is used in an emulsified composition, it is difficult to ensure a good emulsified state and storage stability. Additionally, when used as a first agent composition for a two-part hair dye or bleaching agent, miscibility with the second agent composition tends to be poor, which also easily affects the application characteristics of the obtained hair dye or bleaching agent. The first composition of the present invention can ensure a good emulsified state by adding a nonionic surfactant (B1) as the surfactant of component (B). The first agent composition, which has a good emulsified state, easily and fully exhibits an excellent hair dyeing effect (particularly, root lifting effect and adhesion) due to component (A), and has advantageous properties in relation to the second agent composition. It can be easily secured. In particular, even when the composition contains a relatively large amount of component (A), it is possible to provide a first agent composition suitable for obtaining a hair dye with excellent usability and application characteristics by ensuring good miscibility with the second agent composition. there is. This produces hair dyes and hair bleaches that are easily and uniformly applied to the hair, can more effectively suppress subsequent root flaking, and achieve a high hair dyeing effect as well as good usability and application properties of the preparation.

Nonionic surfactants (B1) are, for example, polyoxyethylene (hereinafter also referred to as “POE”) alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene/polyoxypropylene (hereinafter also referred to as “POE”). Also referred to as "POP"), alkyl ethers, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene propylene glycol fatty acid esters, etc. may be suitably selected from known nonionic surfactants. These nonionic surfactants can be used alone or in combination of two or more. Among them, the nonionic surfactant (B1) is at least one selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene/polyoxypropylene alkyl ether, and polyoxyethylene sorbitan fatty acid ester. It is preferable to contain polyoxyethylene alkyl ether, and it is more preferable to contain polyoxyethylene alkyl ether from the viewpoint of its excellent resistance to acids and alkali agents.

Examples of polyoxyethylene alkyl ethers include those having a polyoxyethylene group and a fatty acid residue having 12 to 22 carbon atoms, specific examples thereof being polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene ceto. Includes stearyl ether, polyoxyethylene stearyl ether, polyoxyethylene behenyl ether, etc. The number of repeating units of polyoxyethylene is, for example, 2 to 200, preferably 10 to 100.

The content of nonionic surfactant (B1) in the first composition of the present invention can be appropriately determined depending on the type of nonionic surfactant used and its combination. This is preferably 0.1% by mass or more and 8% by mass or less based on the total mass of the first agent composition. When the content of the nonionic surfactant (B1) is within the above range, the emulsion properties of the composition can be easily controlled and a first agent composition having excellent miscibility with the second agent composition can be obtained. From the viewpoint of being able to further improve this effect and easily achieve a high hair dyeing effect as well as good usability and application properties, the content of the nonionic surfactant (B1) is more preferable, based on the total mass of the first agent composition. Preferably it is 0.5 mass% or more, more preferably 1 mass% or more, more preferably 6 mass% or less, and even more preferably 4 mass% or less.

The mass ratio of component (A) to nonionic surfactant (B1) in the first agent composition [component (A)/nonionic surfactant (B1)] is preferably 0.1 or more, more preferably 0.5 or more, and also Preferably it is 20 or less, more preferably 15 or less. If the mass ratio of component (A) to nonionic surfactant (B1) is within the range of the upper and lower limits, component (A) can be blended by itself to easily change the viscosity and emulsion properties while ensuring a uniform hair dyeing effect and adhesion. It is possible to control and prepare a composition of the first agent that exhibits excellent usability and application characteristics in relation to the second agent.

The first composition of the present invention preferably contains at least one ionic surfactant as component (B), and more preferably contains at least one anionic surfactant (B2). If the composition contains an ionic surfactant, especially an anionic surfactant (B2) in addition to the nonionic surfactant (B1) as the surfactant of component (B), the stability of the emulsified state can be more easily improved, and the stability of the emulsified state can be more easily improved. It is possible to obtain a first agent composition that achieves better miscibility with the second agent composition while sufficiently securing the advantages achieved by blending (A). In particular, even when the composition contains a relatively large amount of component (A), a hair dye that can ensure good miscibility with the second agent composition and achieves a high hair dyeing effect as well as good usability and application characteristics of the agent. And a hair bleach can be obtained.

Anionic surfactants (B2) include, for example, sulfate ester type anionic surfactants such as alkyl sulfate ester salts and alkyl ether sulfate ester salts; phosphate ester type anionic surfactants such as alkyl phosphate ester salts, and alkyl ether phosphate ester salts; Sulfonic acid type anionic surfactants such as N-acylmethyl taurate and alkyl sulfosuccinate; Known anionic surfactants, including higher fatty acid salts, alkyl ether carboxylates, acyl lactates, N-acyl sarcosinates, carboxylic acid type anionic surfactants such as N-acyl glutamate and N-acyl methyl alanine salts, etc. It may be appropriately selected from surfactants. These anionic surfactants can be used alone or in combination of two or more thereof.

The content of anionic surfactant (B2) in the first composition of the present invention can be appropriately determined depending on the type of anionic surfactant used and its combination. This is preferably 0.1% by mass or more and 8% by mass or less based on the total mass of the first agent composition. When the content of the anionic surfactant (B2) is within the above range, the emulsion properties of the composition can be easily controlled and a first agent composition having excellent miscibility with the second agent composition can be obtained. From the viewpoint of further improving this effect and easily achieving a high hair dyeing effect as well as good usability and application properties, the content of anionic surfactant (B2) is based on the total mass of the first agent composition, more preferably 0.5. It is more than 1% by mass, more preferably 1% by mass or more, more preferably 6% by mass or less, and even more preferably 4% by mass or less.

In one embodiment of the invention, the first agent composition preferably includes a phosphoric acid-based anionic surfactant. The adhesion of hair obtained by blending component (A) can be improved by adding a phosphoric acid-based anionic surfactant. It is preferred that the first agent composition contains polyoxyethylene alkyl ether phosphate as a phosphoric acid-based anionic surfactant. Examples of polyoxyethylene alkyl ether phosphate include polyoxyethylene lauryl ether phosphate, polyoxyethylene cetyl ether phosphate, polyoxyethylene oleyl ether phosphate, polyoxyethylene stearyl ether phosphate, etc. The number of repeating units of polyoxyethylene is, for example, 2 to 100, preferably 3 to 30.

When the first composition includes a phosphoric acid-based anionic surfactant as the anionic surfactant (B2), its content is preferably 70% by mass or more, more preferably 70% by mass or more, based on the total mass of the anionic surfactant (B2). Typically, it is 80% by mass or more. All anionic surfactants (B2) included in the first composition may be phosphoric acid-based anionic surfactants.

The mass ratio of the nonionic surfactant (B1) to the anionic surfactant (B2) in the first agent composition [nonionic surfactant (B1)/anionic surfactant (B2)] is preferably 0.2 or more, more preferably is 0.3 or more, more preferably 0.5 or more, and is also preferably 5 or less, more preferably 4 or less, and further preferably 3 or less. When the mass ratio of the nonionic surfactant (B1) to the anionic surfactant (B2) is within the range of the upper and lower limits, the viscosity and emulsion properties are easily controlled, and the usability and application properties are improved when mixed with the second agent. There is a tendency.

The mass ratio of component (A) to anionic surfactant (B2) in the first agent composition [component (A)/anionic surfactant (B2)] is preferably 0.5 or more, more preferably 3 or more, even more preferably 3 or more. It is preferably 4.5 or more, and is preferably 25 or less, more preferably 20 or less, and still more preferably 15 or less. When the mass ratio of component (A) to anionic surfactant (B2) is within the upper and lower limits, viscosity and emulsion properties can be easily controlled while ensuring a uniform hair dyeing effect and excellent adhesion obtained by blending with component (A). do; In relation to the second agent composition, a first agent composition that exhibits excellent usability and application characteristics can be easily manufactured.

In the present invention, the surfactant (B) may include a surfactant (B3) other than the nonionic surfactant (B1) and the anionic surfactant (B2). Examples of surfactants (B3) include cationic surfactants and zwitterionic surfactants, which are ionic surfactants other than anionic surfactants (B2). Examples of cationic surfactants include alkylammonium salts and the like. Examples of amphoteric surfactants include the alkylamide propylbentaine and the like. Each of these can be used alone or in combination of two or more of them.

When the first agent composition includes a surfactant (B3), its content is preferably 80% by mass or less, more preferably 60% by mass, based on the total mass of all surfactants (B) included in the first agent composition. It is less than mass%.

Mainly from the viewpoint of stability of the formulation, the total content of surfactant (B) in the first agent composition is preferably 1% by mass or more, more preferably 1.5% by mass or more, based on the total mass of the first agent composition. and is preferably 10 mass% or less, more preferably 6 mass% or less.

The first agent composition of the present invention includes (C) an oil component (hereinafter also referred to as “component (C)”). Component (C) contains a higher alcohol that is solid at 25°C and an oiling agent that is liquid at 25°C. The stability of the formulation (emulsion stability, storage stability) can be improved by adding component (C) consisting of an oil component that is solid at 25°C and an oily component that is liquid at 25°C. In addition, moisture can be supplied to hair after dyeing or bleaching, and the sense of adhesion obtained by blending component (A) can be synergistically improved.

As used herein, “solid at 25°C” means a state without fluidity in an environment of 1 atm at 25°C, i.e., under temperature conditions below the melting point (in the case of an amorphous material without a melting point, this is below the melting point). under temperature conditions). In addition, “liquid at 25°C” means a state of fluidity in an environment of 1 atm at 25°C, that is, under temperature conditions equal to or higher than the melting point (in the case of amorphous materials, this means a state under temperature conditions above the melting point). means state).

Examples of higher alcohols that are solid at 25°C (hereinafter also referred to as “component (C1)”) include higher alcohols that are solid at 25°C and have 12 to 22 carbon atoms, specifically myristyl alcohol, Includes cetyl alcohol, stearyl alcohol, cetostearyl alcohol, aracyl alcohol, behenyl alcohol, lanolin alcohol, etc. These can be used alone or in combination of two or more of them.

The content of component (C1) in the first agent composition of the present invention is preferably 2% by mass or more, more preferably 3% by mass or more, and still more preferably 6% by mass, based on the total mass of the first agent composition. % or more, and preferably 15 mass% or less, more preferably 13 mass% or less, and even more preferably 12 mass% or less. When the content of component (C1) is within the above range, a first composition having good usability and application properties and excellent stability can be easily prepared.

Examples of oiling agents that are liquid at 25°C (hereinafter also referred to as “component (C2)”) are:

Hydrocarbon oils such as α-olefin oligomers, light isoparaffins, light liquid isoparaffins, squalane, polybutene, liquid isoparaffins, and liquid paraffins;

Animal and vegetable oils, such as olive oil, camellia oil, brown seed oil, sasanka oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, peanut oil, rapeseed oil, rice bran oil, rice germ oil , wheat germ oil, coix seed oil, grape seed oil, almond oil, avocado oil, carrot oil, macadamia nut oil, castor oil, flaxseed oil, palm oil, mink oil, egg yolk oil, and jojoba oil;

Higher alcohols such as isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, 2-hexyldecanol, linoleyl alcohol, and linolenyl alcohol;

higher fatty acids such as isostearic acid, oleic acid, and linoleic acid;

Ester oils, such as

Diisopropyl adipate, diisobutyl adipate, dioctyl adipate, di-2-hexyldecyl adipate, diisostearyl adipate, isostearyl myristate, isotridecyl myristate, isopropyl myristate, Octyldodecyl myristate, cetyl octanoate, isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, diisopropyl sebacate, isopropyl palmitate, hexyl laurate, decyl oligohydrate ate, hexyldecyl dimethyl octanoate, octyl palmitate, lauryl lactate, octyldodecyl lactate, isocetyl stearate, isocetiol isostearate, ethylene glycol dioctanoate, dipentaerythritol fatty acid ester, cetyl caprylate, glyceryl tricaprylate, neopentyl glycol dicaprate, diisostearyl maleate, and dioctyl succinate;

Silicone oils such as methylpolysiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, polyether-modified silicone, bentyne-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, and the like. These can be used alone or in combination of two or more of them.

The content of component (C2) in the first agent composition of the present invention is preferably 1 mass% or more, more preferably 2 mass% or more, and more preferably 3 mass%, based on the total mass of the first agent composition. %, and is preferably 12 mass% or less, more preferably 10 mass% or less, and further preferably 8 mass% or less. When the content of component (C2) is within the above range, a first agent composition having good usability and application properties and excellent stability can be easily prepared.

The first composition contains, in addition to components (C1) and (C2), an oil component of component (C) other than component (C1) that is solid or semi-solid at 25°C (i.e., other than the higher alcohol that is solid at 25°C). an oil component that is solid at 25° C., hereinafter also referred to as “component (C3)”). As used herein, “semi-solid” refers to an intermediate state between a solid and a liquid, one aspect of which is the form of a paste.

Examples of component (C3) are:

Hydrocarbons such as ozokerite, ceresin, paraffin, polyethylene powder, microcrystalline wax, and petrolatum;

Animal fats such as tallow and cocoa butter;

Waxes such as beeswax, candelilla wax, carnauba wax, and lanolin;

Higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, hydroxystearic acid, undecylenic acid, and ricinoleic acid;

Esters, such as butyl stearate, stearyl stearate, cetyl myristate, myristyl myristate, cetyl palmitate, cetyl lactate, myristyl lactate, lanolin acetate, cholesteryl stearate, and cholesteryl oleate, etc. Includes. These can be used alone or in combination of two or more of them.

When the first agent composition includes component (C3), its content is preferably 0.1% by mass or more, more preferably 1% by mass or more, based on the total mass of the first agent composition, and also preferably It is 10 mass% or less, more preferably 5 mass% or less.

The total content of component (C) in the first agent composition of the present invention is preferably 1% by mass or more, more preferably 5% by mass or more, more preferably 5% by mass or more, based on the total mass of the first agent composition. is 10 mass% or more, and is preferably 25 mass% or less, more preferably 20 mass% or less, and further preferably 15 mass% or less. When the total content of component (C) is within the above range, the viscosity and emulsion properties can be easily controlled, and a first agent composition having good usability and application characteristics and excellent stability can be easily prepared.

In one embodiment of the invention, the ratio of component (C1) to component (C) (mass ratio, (C)/(C1)) is preferably at least 1.1, more preferably at least 1.5, and also preferably It is 3 or less, more preferably 2 or less. The ratio of component (C2) to component (C) (mass ratio, (C)/(C2)) is preferably 2 or more, more preferably 2.5 or more, and also preferably 3.5 or less, more preferably 3. It is as follows. When the ratio of component (C1) and component (C2) in component (C) is within the above range, the viscosity and emulsion properties can be easily controlled, and it is easy to prepare a first agent composition that has good usability and application properties while also having excellent stability. It can be manufactured easily.

Furthermore, in one embodiment of the present invention, the amount of component (C1) and component (C2) in component (C) is preferably 70% by mass or more in total, more preferably 70% by mass or more, based on the total mass of component (C). Typically, it is 80% by mass or more. Any component (C) may be component (C1) and component (C2).

The mass ratio of component (A) to component (C) in the first agent composition [component (A)/component (C)] is preferably 0.1 or more, more preferably 0.5 or more, and also preferably less than 1.5, More preferably, it is 1.0 or less. When the mass ratio of component (A) to component (C) is within the range of the upper and lower limits, the viscosity and emulsion properties are easily controlled while ensuring the uniform hair dyeing effect and excellent adhesion obtained by blending component (A); In relation to the second agent composition, a first agent composition that exhibits excellent usability and application characteristics can be easily manufactured.

The first agent composition preferably contains a cationic polymer. The finished texture after dyeing or bleaching hair is easily improved by cationic polymers. As used herein, cationic polymer refers to a polymer having cationic groups or groups that can be ionized into cationic groups, and includes amphoteric polymers that are entirely cationic. Examples of cationic polymers are specifically aqueous solutions containing amino or ammonium groups in the side chains of the polymer chain, or diallyl quaternary ammonium salts as structural units, for example cationized cellulose derivatives, cationic starch, cationized guar. It includes gum derivatives, polymers or copolymers of diallyl quaternary ammonium salt, quaternized polyvinylpyrrolidone derivatives, etc.

When the first agent composition includes a cationic polymer, its content is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and also preferably 5% by mass, based on the total mass of the first agent composition. It is % by mass or less, more preferably 3% by mass or less.

The first agent composition of the present invention generally contains an alkaline agent. The alkaline agent has the effect of swelling the hair and promoting penetration of the dye and oxidizing agent contained in the second agent. Examples of alkaline agents include ammonia; Alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, and 2-aminobutanol; Alkanediamines such as 1,3-propanediamine; Inorganic bases such as sodium hydroxide, potassium oxide, etc. These can be used alone or in combination of two or more of them.

In the first agent composition of the present invention containing oil component (C) and component (B) in combination with component (A), a high reduction effect on ammonia odor can be expected due to the interaction caused by these components. there is. Therefore, the first composition of the present invention is advantageous even when it contains ammonia as an alkaline agent, especially when it contains a relatively high concentration of ammonia.

From the viewpoint of hair dyeing and bleaching effects, and from the viewpoint of reducing hair damage and scalp irritation, the content of the alkaline agent in the first agent composition is preferably 0.05% by mass or more, based on the total mass of the first agent composition. Preferably it is 0.1 mass% or more, more preferably 0.2 mass% or more, and is also preferably 15 mass% or less, more preferably 10 mass% or less, and further preferably 8 mass% or less.

When the first agent composition is a first agent composition for hair dyeing, the first agent composition contains an oxidized dye intermediate or a direct dye. On the other hand, when the first agent composition is a first agent composition for hair bleaching, the first agent composition generally does not contain dye.

As an oxidized dye intermediate, precursors and couplers commonly known in the hair dye field can be used. Examples of precursors include paraphenylenediamine, toluene-2,5-diamine, 2-chloro-paraphenylenediamine, N-methoxyethyl-paraphenylenediamine, N,N-bis(2-hydroxyethyl)- Paraphenylenediamine, 2-(2-hydroxyethyl)-paraphenylenediamine, 2,6-dimethyl-paraphenylenediamine, 4,4'-diaminodiphenylamine, 1,3-bis (N- (2-hydroxyethyl)-N-(4-aminophenyl)amino)-2-propanol, PEG-3,3,2'-paraphenylenediamine, paraaminophenol, paramethylaminophenol, 3-methyl- 4-Aminophenol, 2-aminomethyl-4-aminophenol, 2-(2-hydroxyethylaminomethyl)-4-aminophenol, orthoaminophenol, 2-amino-5-methylphenol, 2-amino-6 -Methyl phenol, 2-amino-5-acetamide phenol, 3,4-diaminobenzoic acid, 5-aminosalicylic acid, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4 -Hydroxypyrimidine, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1-hydroxyethylpyrazole, and salts thereof.

Examples of couplers are metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4-(2-hydroxyethylamino)anisole, 2,4-diamino-5-methylphenetol, 2 ,4-diamino-5-(2-hydroxyethoxy)toluene, 2,4-dimethoxy-1,3-diaminobenzene, 2,6-bis(2-hydroxyethylamino)toluene, 2, 4-diamino-5-fluorotoluene, 1,3-bis(2,4-diaminophenoxy)propane, metaaminophenol, 2-methyl-5-aminophenol, 2-methyl-5-(2- Hydroxyethylamino)phenol, 2,4-dichloro-3-aminophenol, 2-chloro-3-amino-6-methylphenol, 2-methyl-4-chloro-5-aminophenol, N-cyclopentyl-meth Aminophenol, 2-methyl-4-methoxy-5-(2-hydroxyethylamino)phenol, 2-methyl-4-fluoro-5-aminophenol, resorcin, 2-methylresorcin, 4-chloro Resorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5-methylphenol, 4-hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxybenzomorpholine, 3,4-methylenedioxyphenol, 2-bromo-4,5-methylenedioxyphenol, 3 ,4-methylenedioxyaniline, 1-(2-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dimethoxy- 3,5-diaminopyridine, 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6- Diaminopyridine, and salts thereof.

Oxidized dye intermediates may be used alone or in combination of two or more thereof. The content is preferably 0.01 to 8% by mass, more preferably 0.1 to 5% by mass, respectively, based on the total mass of the first agent composition.

Examples of direct dyes include nitro dyes, disperse dyes, basic dyes, etc. Specifically, examples of nitro dyes include 2-nitro-paraphenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-parahydroxyethylaminophenol, 4-nitro-orthophenylenediamine, 4-Amino-3-nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC Blue No.2, HC Orange No.1, HC Red No.1, HC Yellow No.2, HC Yellow No.4 , HC Yellow No. 5, HC Red No. 3, and N,N-bis-(2-hydroxyethyl)-2-nitro-paraphenylenediamine. 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 Red 51, Basic Yellow 57, Basic Yellow 87, and Basic Orange 31.

Direct dyes can be used alone or in combination of two or more of them. Its content is preferably 0.001 to 5% by mass, more preferably 0.01 to 3% by mass, based on the total mass of the first agent composition.

In addition to the above-mentioned essential components (A) to (C) and optional components, the first agent composition of the present invention is typical for first agent compositions for hair dyeing and bleaching in amounts within the range in which the effect of the present invention is achieved. It may contain other ingredients that can be blended into it. These ingredients may be solvents, antioxidants, pH adjusters, chelating agents, preservatives, fragrances, thickeners, organic acids, wetting agents, UV absorbers, humectants, etc.

Examples of solvents include water, ethanol, isopropyl alcohol, 1,3-butylene glycol, 1,2-pentanediol, 2-methyl-2,4-pentanediol, glycerin, diglycerin, propylene glycol, dipropylene glycol, and benzyl alcohol.

Examples of antioxidants include ascorbic acid and its derivatives, sodium sulfite, and the like.

Examples of pH adjusting agents include, in addition to the alkaline agents described above, mineral acids such as hydrochloric acid and phosphoric acid; Organic acids such as citric acid, glycolic acid and lactic acid; Inorganic or organic acid salts such as potassium monohydrogen phosphate, disodium monohydrogen phosphate, and sodium citrate; Carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium bicarbonate, and potassium bicarbonate.

Examples of chelating agents include ethylenediaminetetraacetic acid (EDTA), disodium edetate, and tetrasodium edetate.

The formulation form of the first agent composition may be, for example, a liquid such as an emulsion, a cream form, a foam form, a gel-like form, etc. It is preferred that the preparations be prepared as creamy, emulsified compositions. In particular, when preparing the formulation by emulsifying component (A) as an oil phase component, uniform dispersion of component (A) is easy, and the formulation has an excellent balance between high hair dyeing effect and good usability or application properties of the formulation. A first composition is obtained. Specifically, the oil phase comprising components (A) to (C) and, if necessary, other oily components, and the aqueous phase comprising an aqueous component such as water are stirred, for example, using general emulsification methods. While mixing and emulsifying, the first composition of the present invention is obtained.

In the present invention, the viscosity of the first agent composition at 20°C is 5,000 mPa·s or more and 70,000 mPa·s or less. The viscosity of the first agent composition within the above range is easy to be uniformly applied to the hair, can more effectively suppress subsequent root lifting, and achieves not only good usability and application characteristics of the agent, but also a high hair dyeing effect. A first composition for dyeing or bleaching hair is produced. In particular, when the viscosity at 20°C exceeds 70,000 mPa·s, the miscibility with the second agent composition is poor, and the hair dye or hair bleaching agent achieves excellent application characteristics while having a strong inhibitory effect on the lifting of the roots. becomes difficult to obtain. Since the above effect is more easily improved, the viscosity of the first agent composition at 20°C is preferably 8,000 mPa·s or more, more preferably 10,000 mPa·s or more, and further preferably 60,000 mPa·s or less, More preferably, it is 50,000 mPa·s or less.

The viscosity of the first composition can be measured using a rotational viscometer. For example, a HAAKE VT-550 rheometer (manufactured by Thermo Fisher Scientific Inc.) can be used as a rotational viscometer. For example, measurement can be made under the measurement conditions of SV1 sensor, temperature of 20°C, and shear rate of 7.2s ^-1 .

The viscosity of the first agent composition may vary depending on the content of component (A), the type of nonionic surfactant (B1) and/or anionic surfactant (B2), and combinations thereof and their content; The type of component (C1) and/or component (C2), and their combinations and their contents; and can be controlled by adjusting the types and contents of components such as solvents and salts.

The pH (25°C) of the first composition of the present invention is preferably 8 to 12, more preferably 9 to 11, from the viewpoint of hair dyeing effect and stability of the formulation.

Hair dye or hair bleach can be obtained by mixing the first agent composition of the present invention with a second agent composition containing an oxidizing agent. The first agent composition of the present invention is a general second agent composition containing an oxidizing agent and can be used in combination with various conventionally known compositions.

As the oxidizing agent contained in the second agent composition, for example, hydrogen peroxide, sodium bromate, and sodium percarbonate can be used. The content of the oxidizing agent in the second agent composition is not particularly limited, but is usually 0.1 to 0.1 based on the total mass of the second agent composition, not only from the viewpoint of hair dyeing and decolorization effects, but also from the viewpoint of reducing hair damage and scalp irritation. 12% by mass, preferably 1% by mass to 6% by mass.

In addition to the oxidizing agent, the secondary composition may include, for example, surfactants, oiling agents, solvents, pH adjusters, chelating agents, preservatives, flavoring agents, thickeners, and stabilizers.

The components constituting the second agent composition may be appropriately selected depending on the composition of the first agent composition and the formulation form of the second agent composition. The effect of the present invention tends to be improved, especially when the first agent composition of the present invention is used in combination with a second agent composition containing an oil component. Accordingly, in one embodiment of the present invention, the second agent composition used in combination with the first agent composition of the present invention preferably contains at least 1% by mass, more preferably 3%, based on the total mass of the second agent composition. It contains an oil component of at least 5% by mass, more preferably at least 5% by mass. The oil component that the second agent composition may contain may be a component as previously exemplified as the oil component (C) that can be used in the first agent composition. These can be used alone or in combination of two or more of them.

When the second agent composition contains an oil component, it is preferable that the second agent composition contains a surfactant from the viewpoint of stability of the second agent composition. The surfactant may be each of the surfactants exemplified above as the surfactant (B) that can be used in the first agent composition, and may be appropriately selected depending on the formulation form and the desired viscosity of the second agent composition. As a surfactant, only one type may be used, or two or more of these types may be used in combination.

The formulation form of the second agent composition may be, for example, a liquid such as an emulsion, a cream form, a foam form, a gel-like form, etc.

From the viewpoint of being able to fully exert the effects of the present invention of the above-mentioned first agent composition, the second agent composition used in combination with the first agent composition of the present invention preferably has the temperature of the first agent composition at 20°C. It has a viscosity (20°C) whose viscosity difference (absolute value) from the viscosity is preferably 50,000 mPa·s or less, more preferably 30,000 mPa·s or less (20°C). In one embodiment of the invention, the viscosity at 20°C of the second agent composition used in combination with the first agent composition of the present invention is preferably greater than or equal to 1,000 mPa·s and less than or equal to 50,000 mPa·s, more preferably It is 5,000 mPa·s or more and 20,000 mPa·s or less. The viscosity of the second agent composition can be measured by the same method as the method for measuring the viscosity of the first agent composition.

The viscosity of the second agent composition can be controlled by the type and content of the oiling agent and surfactant.

The pH (25°C) of the second agent composition is preferably 2 to 4, more preferably 2.5 to 3.5 from the viewpoint of hair dyeing effect and agent stability.

When mixing the first agent composition of the present invention with the second agent composition, the mixing ratio (mass ratio, first agent composition: second agent composition) is determined by the concentration, miscibility, and application method of each component in the obtained hair dye or bleaching agent (mixture). , may be appropriately determined considering dyeability, etc., but is preferably 1:0.5 to 5, more preferably 1:1 to 3.

The viscosity at 20°C of the hair dye or bleaching agent obtained by mixing the first and second agent compositions of the present invention is preferably 5,000 mPa·s or more and 50,000 mPa·s or less, more preferably 10,000 mPa·s or more. and 30,000 mPa·s or less. Viscosity can be measured, for example, with a rotational viscometer. As a rotational viscometer, for example, a HAAKE VT-550 rheometer (manufactured by Thermo Fisher Scientific Inc.) can be used. For example, it can be measured under the measurement conditions of MV2 sensor, temperature of 20°C, and shear rate of 7.2s ^-1 .

The form of the preparation after mixing is not particularly limited as long as it is a form that can be applied to hair, and may be, for example, a liquid such as an aqueous solution, or an emulsion, cream, foam, gel-like, etc.

Example

Below, the present invention will be explained in more detail with reference to examples. The scope of the invention is not limited by the examples below. Additionally, in the examples, “%” and “part” mean mass % and mass part, respectively, unless otherwise specified.

1. Preparation of first agent composition

According to the compositions shown in Tables 1 to 3, the first agent compositions of Examples 1 to 13 and Comparative Examples 1 to 6 were prepared by the following procedure.

As an oil phase component, components (A), (B), (C) and other components were mixed and dissolved by heating at 80° C. to prepare an oil phase. Separately, the aqueous phase was prepared by mixing water, dye, stabilizer and other ingredients and dissolving them by heating at 80°C. The aqueous phase was added to the oil phase with sufficient stirring to emulsify them, and the resulting mixture was then cooled to room temperature. Ammonia and/or monoethanolamine were added to the obtained emulsion and mixed uniformly to obtain the first composition.

The viscosity of the obtained first composition was measured using a HAAKE VT-550 rheometer (manufactured by Thermo Fisher Scientific Inc.) under the measurement conditions of SV1 sensor, temperature 20°C, and shear rate 7.2 s ^-1 . The results are shown in Tables 1 to 3.

[Table 1]

[Table 2]

[Table 3]

2. Preparation of secondary composition

A second composition (emulsified composition) was prepared by mixing each of the components shown in Table 4.

The viscosity of the obtained second composition was measured using a HAAKE VT-550 rheometer (manufactured by Thermo Fisher Scientific Inc.) under the measurement conditions of SV1 sensor, temperature 20°C, and shear rate 7.2 s ^-1 . The results are shown in Table 4.

[Table 4]

3. Evaluation of each physical property/characteristic and hair dyeing effect

According to the following method, the first agent compositions of Examples 1 to 13 and Comparative Examples 1 to 6 were evaluated for stability, miscibility with the second agent composition, usability, and hair dyeing effect. The results are shown in Table 5.

(1) Emulsified state (emulsion stability)

The mixed state of the first composition was observed with the naked eye, and the emulsified state was evaluated according to the following criteria.

<Evaluation criteria>

◎: A uniform emulsion was obtained.

○: A slightly rough emulsion was obtained.

△: It became a non-uniform emulsion.

x: No emulsion was obtained.

In Comparative Examples 2 to 4, when the evaluation of the emulsified state was x or Δ, subsequent evaluation was not performed.

(2) Storage stability

The first composition was placed in a glass container and stored at 40°C for 6 months, then changes in appearance were observed and storage stability was evaluated according to the following criteria.

<Evaluation criteria>

◎: There was almost no change.

○: A slight decrease in viscosity was observed.

Δ: A significant decrease in viscosity was observed.

x: Separated.

(3) Miscibility with the second agent composition

When the same amounts of the first agent composition and the second agent composition were placed in a cup and mixed using a brush, sensory evaluation was performed on the ease of mixing and the state of mixing. The evaluation criteria are as follows.

<Evaluation criteria>

◎: Easy to mix and can be mixed uniformly without unevenness.

○: Slightly difficult to mix, but can be mixed uniformly.

△: Quite difficult to mix.

x: Difficult to mix and not uniform.

The viscosity of the obtained mixture was measured using a HAAKE VT-550 rheometer (manufactured by Thermo Fisher Scientific Inc.) under the measurement conditions of MV2 sensor, temperature 20° C., and shear rate 7.2 s ⁻¹ .

(4) Effect of suppressing root lifting

The hair dye composition consisting of the first agent composition and the second agent composition, which were mixed in the evaluation of (3) above, was applied to human hair using a brush, and the effect of suppressing flaking at the roots was observed with the naked eye. The evaluation criteria are as follows.

<Evaluation criteria>

◎: The hair dye composition is in the form of a sticky cream and is good for pressing the root area.

○: Slightly less viscous than ◎, but can press the roots.

△: The viscosity of the cream is insufficient and the roots cannot be sufficiently pressed.

x: The roots are lifted and the cream does not adhere.

(5) Application operability

When the hair dye composition consisting of the first agent composition and the second agent composition, which were mixed in the evaluation of (3) above, was applied to the hair of a human head using a brush, regarding operability, such as liquid flowing, spreadability, or application unevenness. Sensory evaluation was performed. The evaluation criteria are as follows.

<Evaluation criteria>

◎: It spread well, did not drip, and could be applied unevenly.

○: Operability was slightly lower than ◎, but application was possible almost unevenly.

△: It does not spread very well and tends to be uneven.

x: Flowing occurs.

Ammonia odor during application

In the evaluation of (5) above, the odor of ammonia during application was also evaluated according to the following evaluation criteria.

<Evaluation criteria>

◎: I am not very worried about the ammonia smell.

○: A slight ammonia odor is felt.

△: The sharp smell of ammonia is felt.

x: A strong pungent odor of ammonia is felt.

(7) Feeling of anchorage at the ends of the hair

Sensory evaluation of the feeling of fixation at the hair ends after the hair-dyeing procedure was performed according to the following procedure.

<Hair-dyeing procedure>

In evaluations (4) and (5), the applied hair dye was left for 30 minutes, then washed with water, washed with shampoo, treated with conditioner, then washed and dried with a hair dryer.

<Evaluation criteria>

◎: Provided a well-established finish at the ends of the hair.

○: Provided a finish where the ends of the hair were almost well set.

△: The ends of the hair gave a slightly poor set finish.

x: Provided a poorly set finish to the hair ends.

(8) Adhesion to the entire hair

In (7) above, a sensory evaluation was performed on the feeling of adhesion to the entire hair after the hair-dyeing procedure. The evaluation criteria are as follows.

<Evaluation criteria>

◎: Provided a finish with a sense of adhesion to all hair.

○: Provided a finish with a sense of adhesion to almost the entire hair.

△: Provided a finish with slightly poor adhesion to the entire hair.

x: Provided a finish without a sense of adhesion to the entire hair.

(9) Hair dyeing power and uniform dyeing ability

In (7) above, after the hair-dyeing procedure, the degree of hair dyeing and color unevenness were observed with the naked eye, and hair dyeing power and uniform dyeing properties were evaluated according to the following criteria.

<Evaluation criteria>

◎: The entire hair was dyed uniformly and firmly without unevenness.

○: The entire hair was dyed uniformly and firmly with almost no unevenness.

△: There was some unevenness and uniform staining was not obtained.

x: There was unevenness and a uniform dyeing finish was not obtained.

[Table 5]

Claims (6)

A first agent composition for hair dyeing or hair bleaching used in combination with a second agent composition comprising an oxidizing agent, the first agent composition comprising:
(A) at least one selected from the group consisting of kaolin, mica and talc,
(B) at least one surfactant, and
(C) Oil composition
Includes,
here
(B) at least one surfactant comprises a nonionic surfactant,
(C) The oil component includes a higher alcohol that is solid at 25°C and an oiling agent that is liquid at 25°C,
The first composition has a viscosity at 20°C of 5,000 mPa·s to 70,000 mPa·s.
First agent composition. The first agent composition according to claim 1, wherein (B) at least one surfactant further comprises an anionic surfactant. The first agent composition according to claim 1 or 2, wherein (B) at least one surfactant comprises a phosphoric acid-based anionic surfactant. The first agent composition according to any one of claims 1 to 3, wherein the content of (A) is 0.1 to 20% by mass based on the total mass of the first agent composition. The first agent composition according to any one of claims 1 to 4, comprising kaolin as (A). The first agent composition according to any one of claims 1 to 5, further comprising (D) ammonia.