JP2024023784A - Hair dye fading prevention composition or hair dye kit - Google Patents

Abstract

To provide a composition that can reduce or inhibit the fading of dyed hair color.SOLUTION: The present disclosure provides a composition for preventing the fading of dyed hair color which contains at least one first compound selected from a specific L-ascorbic acid derivative and a salt thereof and a cationic second compound.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a hair dyeing composition or hair dyeing kit for preventing fading.

In recent years, various hair dyes have been developed.

Patent Document 1 describes (A) amino-modified highly polymerized silicones with a number average degree of polymerization of 800 to 20,000, (B) 0.1 to 5% by mass of a specific long-chain dialkyl type quaternary ammonium salt, ( C) higher alcohol, (D) alkaline agent, (E) oxidation dye intermediate or direct dye (none of which is used for decolorization), (F) water, and (G) nonionic surfactant from 1 to 40% Mass %, (H) Containing a cationic polymer containing diallyl quaternary ammonium salt as a constituent unit, usage ratio of cationic surfactant including component (B) and nonionic surfactant of component (G) is in a range where the mass ratio of (cationic surfactant)/(nonionic surfactant + cationic surfactant) is 0.4 or less, has a pH of 8 to 12, and cannot be mixed with the oxidizing agent composition. A first agent composition for emulsified oxidative hair dyeing or bleaching is disclosed.

Patent Document 2 discloses an oxidative hair dye composition containing 1 to 20% by mass of ascorbic acids in an oxidative hair dye containing an oxidative dye consisting of a main intermediate and a coupler.

Patent No. 4162585 JP2002-029946A

When hair dye is applied to damaged hair, the hair will be dyed evenly immediately after the hair is dyed. At least a portion of the dye used in the dye may come off, resulting in the dyed hair becoming completely discolored or uneven dyeing occurring.

Therefore, the subject of the present disclosure is to provide a composition capable of reducing or suppressing hair fading after hair dyeing.

<Aspect 1>
At least one first compound selected from L-ascorbic acid derivatives and salts thereof represented by the following formula 1, and
a cationic second compound,
A composition for preventing hair dye fading, comprising:
In formula 1,
R ¹ is each independently hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, or a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms; is the basis,
R ² is hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, or a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms;
^R3 is hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms, a sugar residue, phosphorus; is an acid ester group or a sulfuric ester group, and
At least one of R ¹ to R ³ is a linear or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms.
<Aspect 2>
The composition according to aspect 1, wherein the first compound is ascorbyl tetra-2-hexyldecanoate.
<Aspect 3>
The composition according to aspect 1 or 2, wherein the second compound is a monoalkyl- or dialkyl-type quaternary ammonium salt represented by the following formula 2:
In formula 2,
One or two of R ⁴ to R ⁷ represents an alkyl group having 8 to 24 carbon atoms which may be substituted with a hydroxy group,
Those other than the above one or two of R ⁴ to R ⁷ represent an alkyl group having 1 to 3 carbon atoms, which may be substituted with a hydroxy group, or a hydrogen atom, and
A ⁻ represents an anion.
<Aspect 4>
The content of the first compound is 0.03% by mass or more and 1.0% by mass or less based on the total amount of the composition, and the content of the second compound is 0.03% by mass or more and 1.0% by mass or less based on the total amount of the composition. The composition according to any one of aspects 1 to 3, wherein the content is 03% by mass or more and 1.0% by mass or less.
<Aspect 5>
The composition according to any one of aspects 1 to 4, further comprising a dye and used for hair dyeing.
<Aspect 6>
The composition according to aspect 5, further comprising an alkaline agent.
<Aspect 7>
The composition according to any one of aspects 1 to 4, further comprising an oxidizing agent and used for hair dyeing.
<Aspect 8>
The composition according to any of aspects 1 to 4, further comprising a persulfate.
<Aspect 9>
A composition according to any of aspects 1 to 4, which is used as a hair conditioner, hair rinse, or hair treatment.
<Aspect 10>
an agent that is the composition according to any one of aspects 1 to 4, and instructions for use;
A hair dye kit that includes:
<Aspect 11>
The kit according to aspect 10, wherein the agent further comprises a dye.
<Aspect 12>
The kit according to aspect 11, wherein the agent is a first agent that further includes an alkaline agent, and further comprises a second agent that includes an oxidizing agent.
<Aspect 13>
The kit according to aspect 10, wherein the agent is a second agent that further includes an oxidizing agent, and further comprises a first agent that includes a dye and an alkaline agent.
<Aspect 14>
The kit according to aspect 10, wherein the agent is a third agent, and further comprises a first agent containing a dye and an alkaline agent, and a second agent containing an oxidizing agent.

According to the present disclosure, it is possible to provide a composition that can reduce or suppress discoloration of hair after hair dyeing.

It is a graph regarding ΔE ^* _ab, which is involved in the anti-fading property of hair after dyeing with the compositions of each Example and each Comparative Example.

Embodiments of the present disclosure will be described in detail below. The present disclosure is not limited to the following embodiments, and can be implemented with various modifications within the scope of the gist of the invention.

The composition for preventing hair dye fading (sometimes simply referred to as the "composition") of the present disclosure comprises at least one first compound selected from specific L-ascorbic acid derivatives and salts thereof, and a cationic first compound. Contains 2 compounds.

Although not limited by the principle, it is believed that the principle of action by which such a composition can reduce or suppress the fading of hair after hair dyeing is as follows.

Hair is generally hydrophobic because its surface is covered with a cuticle, but for example, when hair is damaged and the cuticle structure on the surface collapses, the damaged area becomes hydrophilic. It is also known that it becomes negatively charged.

It is believed that the fading of dyed hair is caused by damage to the hair, which causes the dye to fall out from the damaged area when shampooed or the like.

The first compound and the second compound contained in the composition of the present disclosure are each used as a repair agent for damaged hair, and have the effect of repairing damaged hair that has become hydrophilic and returning it to hydrophobicity. is known, but even if the first compound or the second compound was applied alone to dyed hair, it was not possible to prevent color fading after shampooing. However, surprisingly, the present inventors have found that when the first compound and the second compound are used in combination, fading of color of dyed hair after shampooing can be suitably prevented. The reason why the combined system of the first compound and the second compound can suitably prevent discoloration of dyed hair after shampooing is considered as follows.

The first compound reacts with amino groups present on the surface of undamaged hair to form a group constituting the first compound, such as a linear or branched saturated or unsaturated group having 8 to 36 carbon atoms. Hydrophobic groups based on fatty acid residues are arranged to cover the hair surface, and can exhibit the ability to hydrophobically repair the hair surface. Further, the cationic second compound is positively charged and is arranged so as to directly repair the damaged portion of the hair surface which is negatively charged due to an electric charge attraction effect.

If the dye has come off from the damaged area of the hair due to shampooing or the like, it seems possible to deal with the loss of the dye from the hair simply by directly repairing the damaged area with a second compound. However, since shampoo is generally anionic, it is believed that the cationic second compound placed in the repaired area will be somewhat attracted to the shampoo from the damaged area. As a result, a cavity is created in the repaired area where the dye can fall out, and it is believed that sufficient anti-fading properties will not be achieved.

On the other hand, in the composition of the present disclosure, first, a damaged part of the hair is repaired with a cationic second compound, and then the amino groups present around the damaged part react with the first compound, and the second compound is repaired. It is believed that the area repaired by the compound is protected by being covered with a hydrophobic group produced by the reaction between the first compound and the amino group. As a result, the cationic second compound protected by a hydrophobic group is retained without falling off from the damaged area even after shampooing, so it is believed that sufficient anti-fading properties can be exhibited.

《Composition for preventing hair dye fading》
The dyed hair fading prevention composition of the present disclosure has the ability to reduce or suppress the fading of dyed hair (this performance may be simply referred to as "fading prevention property"). Regarding anti-fading properties, for example, according to the conditions of the anti-fading test described below, the color of dyed hair before and after washing with shampoo is measured using a spectrophotometer, and the color difference is determined. It can be evaluated by (ΔE ^* _ab ). The closer the color difference (ΔE ^* _ab ) is to zero, the better the antifading property is. This color difference (ΔE ^* _ab ) can be 7.0 or less, 6.7 or less, 6.5 or less, 6.3 or less, or 6.0 or less. There is no particular restriction on the lower limit value of the color difference (ΔE ^* _ab ), but for example, it is 1.0 or more, 1.5 or more, 2.0 or more, 2.5 or more, 3.0 or more, 3.5 or more, or It can be 4.0 or more.

<First compound>
The composition for preventing hair dye fading of the present disclosure contains at least one first compound selected from L-ascorbic acid derivatives and salts thereof represented by the following formula 1.

There is no particular restriction on the amount of the first compound, and for example, based on the total amount of the composition, 0.03% by mass or more, 0.06% by mass or more, 0.08% by mass or more, 0.10% by mass or more, It can be 0.15% by mass or more, or 0.20% by mass or more, and 1.0% by mass or less, 0.70% by mass or less, 0.50% by mass or less, or 0.30% by mass or less. It can be done.

The first compound that can be blended into the composition of the present disclosure is at least one selected from L-ascorbic acid derivatives and salts thereof represented by the following formula 1:

In formula 1, R ¹ is each independently hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, or a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms. An unsaturated fatty acid residue, R ² is hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, or a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms. A fatty acid residue, R ³ is hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms , a sugar residue, a phosphate ester group, or a sulfate ester group, and at least one of R ¹ to R ³ is a linear or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms. It is the basis.

From the viewpoint of antifading property, in R ¹ to R ³ of the L-ascorbic acid derivative and its salt represented by formula 1, the number of carbon atoms in the linear or branched saturated or unsaturated hydrocarbon group is 8 to 36. is preferred, and more preferably 12-22. Furthermore, from the viewpoint of anti-fading properties, at least one of R ¹ to R ³ is preferably a linear or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms; More preferably, it is a linear or branched saturated or unsaturated fatty acid residue of number 12 to 22.

Here, the term "fatty acid residue" refers to a group obtained by removing a hydroxyl group from a carboxyl group of a linear or branched saturated or unsaturated fatty acid. The fatty acid is a saturated or unsaturated fatty acid, and includes, for example, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, isopalmitic acid, hexyldecanoic acid, oleic acid, linoleic acid, arachidic acid, behenic acid, etc. be able to.

Furthermore, in R ³ , the sugar residue is intended to be a group obtained by removing one hydroxyl group from a sugar. For the phosphate ester group, the portion including the oxygen atom bonded to R ³ is referred to as a phosphate ester group, and for the sulfate ester group, the portion including the oxygen atom bonded to R ³ is referred to as a sulfate ester group.

The form of the salt of the L-ascorbic acid derivative represented by Formula 1 is not particularly limited, but includes, for example, alkali metal salts such as sodium salts, potassium salts, and lithium salts; Examples include earth metal salts, ammonium salts, amino acid salts, and the like.

Specific examples of the L-ascorbic acid derivative represented by formula 1 and its salt include ascorbyl palmitate, ascorbyl stearate, ascorbyl dipalmitate, ascorbyl tetrapalmitate, ascorbyl tetra-2-hexyldecanoate, and ascorbic acid. Mention may be made of glucoside fatty acids, ascorbyl palmitate trisodium phosphate. These can be used alone or in combination of two or more. Among these, from the viewpoint of anti-fading properties, ascorbyl dipalmitate and ascorbyl tetra-2-hexyldecanoate are preferred, and ascorbyl tetra-2-hexyldecanoate is more preferred.

<Second compound>
The composition for preventing hair dye fading of the present disclosure includes a cationic second compound. By using the second compound and the above-mentioned first compound together, good anti-fading properties can be achieved.

There is no particular restriction on the amount of the second compound, and for example, based on the total amount of the composition, 0.03% by mass or more, 0.06% by mass or more, 0.08% by mass or more, 0.10% by mass or more, It can be 0.15% by mass or more, or 0.20% by mass or more, and 1.0% by mass or less, 0.70% by mass or less, 0.50% by mass or less, or 0.30% by mass or less. It can be done.

There is no particular restriction on the blending ratio of the first compound and the second compound described above, but for example, from the viewpoint of anti-fading properties, the mass ratio of the first compound and the second compound may be 1:3, 1: 3:1, 2.5:1, 2:1, 1.5:1, and 1:1 from one selected from 2.5, 1:2, 1:1.5, and 1:1. The range can be any one selected from . Among these, the mass ratio is preferably in the range of 1:2.5 to 2.5:1, more preferably in the range of 1:2 to 2:1, even more preferably in the range of 1:2 to 1.5:1. , a range of 1:2 to 1:1 is particularly preferred.

As the second compound that can be blended into the composition of the present disclosure, a cationic compound can be used. Among them, from the viewpoint of anti-fading properties, it is preferable to use a cationic surfactant, and the following formula: It is more preferable to use a monoalkyl type quaternary ammonium salt or a dialkyl type quaternary ammonium salt represented by 2. The second compound can be used alone or in combination of two or more:

In formula 2, one or two of R ⁴ to R ⁷ represents an alkyl group having 8 to 24 carbon atoms which may be substituted with a hydroxy group, and one or two of R ⁴ to R ⁷ Those other than two represent an alkyl group having 1 to 3 carbon atoms, which may be substituted with a hydroxy group, or a hydrogen atom, and A ^- represents an anion.

(Monoalkyl quaternary ammonium salt)
The monoalkyl quaternary ammonium salt will be explained in detail below.

In the case of a monoalkyl quaternary ammonium salt, R ⁴ in formula 2 is preferably a straight or branched alkyl group having 8 to 22 carbon atoms. The number of carbon atoms is more preferably 12 or more or 16 or more, and more preferably 20 or less or 18 or less. Furthermore, R ⁴ is preferably a straight-chain alkyl group.

R ⁵ to R ⁷ in Formula 2 may be the same or different, and are preferably a hydrogen atom or a methyl group.

A ⁻ in formula 2 is preferably a halide ion such as a chloride ion or a bromide ion, and more preferably a chloride ion.

Specific examples of monoalkyl quaternary ammonium salts include alkyltrimethylammonium chlorides such as behenyltrimethylammonium chloride, stearyltrimethylammonium chloride, and cetyltrimethylammonium chloride. Among these, behenyltrimethylammonium chloride and stearyltrimethylammonium chloride are preferred, and stearyltrimethylammonium chloride is more preferred, from the viewpoint of anti-fading properties and the like.

(Dialkyl quaternary ammonium salt)
In the case of a dialkyl type quaternary ammonium salt, in formula 2, R ⁴ and R ⁵ may be the same or different and are an alkyl group having 8 to 24 carbon atoms which may be substituted with a hydroxy group. It is preferable. The number of carbon atoms is more preferably 12 or more or 14 or more, and more preferably 20 or less or 18 or less. Further, R ⁴ and R ⁵ are preferably linear alkyl groups.

R ⁶ and R ⁷ in Formula 2 may be the same or different, and are preferably an alkyl group having 1 to 3 carbon atoms which may be substituted with a hydroxy group, and preferably a methyl group. More preferred.

A ⁻ in Formula 2 is preferably a halide ion, a methyl sulfate ion, or an ethyl sulfate ion, more preferably a halide ion, and even more preferably a chloride ion.

Specific examples of dialkyl quaternary ammonium salts include distearyldimethylammonium chloride, dicetyldimethylammonium chloride, dicokoyldimethylammonium chloride, isostearyllauryldimethylammonium chloride, and dialkyl (C ₁₂ -C ₁₅ ) dimethyl chloride. Examples include ammonium, dialkyl (C ₁₂ -C ₁₈ ) dimethylammonium chloride, and dialkyl (C ₁₄ -C ₁₈ ) dimethylammonium chloride. Among these, distearyldimethylammonium chloride is preferred from the viewpoint of anti-fading properties and the like.

<Optional ingredients>
The composition for preventing hair dye fading of the present disclosure may contain various components as appropriate within a range that does not affect the effects of the present invention. For example, stabilizers such as dyes, alkaline agents, oxidizing agents, fats and oils, sequestering agents (e.g. EDTA) and antioxidants (e.g. vitamin C, cystine, sulfites), disinfectants, preservatives, ultraviolet absorbers, etc. agents, solvents (e.g. ethanol), water, penetrants (e.g. benzyl alcohol), surfactants (e.g. anionic surfactants, cationic surfactants other than those listed above, amphoteric surfactants, nonionic surfactants) active agents), water-soluble polymer compounds, humectants, conditioning agents (e.g. polyols, keratin proteins, silicones, amino acids, plant extracts), pH adjusters (e.g. phosphoric acid, citric acid, glycolic acid, lactic acid), gloss Examples include imparting agents, feel improvers, emollients, thickeners (cellulose, xanthan gum), solubilizers (eg, polyoxyethylene sorbitan monolaurate), pigments, perfumes, and the like. These optional components can be used alone or in combination of two or more.

For example, a composition further comprising a dye can be used, for example, as a one-part temporary or semi-permanent hair dye, or as the first part of a two-part permanent hair dye. Can be done. The composition for preventing hair dye fading of the present disclosure can exhibit anti-fading properties on hair dyed with any of temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes. , Semi-permanent hair dyes and permanent hair dyes, in which the dye penetrates into the inside of the hair and is easily transferred to the outside by shampooing from damaged areas of the hair, and among these, it can be used for hair dyed with permanent hair dyes. It's advantageous.

For example, when the composition is used as the first part of a two-part permanent hair dye, an alkaline agent can be further blended.

In addition, for example, a composition that further contains an oxidizing agent can be used as the second part of a two-part permanent hair dye, and a composition that further contains a persulfate can be used, for example, as the second part of a two-part permanent hair dye. It can be used as a third agent (bleaching agent) in permanent hair dyes. This third agent is an agent for bleaching the hair before hair dyeing, and after using this third agent, the hair dyeing treatment is carried out.

Furthermore, the composition may be used as a hair conditioner, hair rinse, hair treatment, etc. by appropriately blending surfactants, oils and fats, water, etc. Even if the composition for preventing hair dye fading of the present disclosure is not used directly as an agent for hair dyeing, it can be used continuously in the form of a hair conditioner or the like to reduce or suppress bleaching of dyed hair. can do.

Below, some frequently used optional ingredients will be explained in detail.

(dye)
In some embodiments, the hair dye fading prevention composition of the present disclosure can incorporate dyes such as those used in temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes.

There is no particular restriction on the amount of the dye to be blended, and for example, it can be 0.01% by mass or more, 0.05% by mass or more, or 0.1% by mass or more with respect to the total amount of the composition; It can be .0 mass% or less, 4.5 mass% or less, or 4.0 mass% or less.

a. Acid dyes As dyes, acid dyes can be used. Acid dyes are typically dyes used in temporary and semi-permanent hair dyes.

Examples of acidic dyes include Red No. 3 (Erythrosin), Red No. 102 (New Coccin), Red No. 106 (Acid Red), Red No. 201 (Lysole Rubin B), Red No. 227 (Fast Acid Magenta), Red No. No. 230 (1) (Erythrosin YS), Red No. 203 (2) (Erythrosin YSK), Red No. 231 (Phloxin BK), Red No. 232 (Rose Bengal K), Red No. 401 (Violamine R), Red 502 No. (Bonso 3R), Red No. 503 (Bonso R), Red No. 504 (Bonso SX), Red No. 506 (Fast Red S), Yellow No. 202 (2) (Uranine K), Yellow No. 4 (Tartrazine), Yellow No. 402 (Pola Yellow 5G), Yellow No. 403 (1) (Naphthol Yellow S), Yellow No. 406 (Metanyl Yellow), Green No. 3 (First Green FCF), Green No. 201 (Alizarin Cyanine Green F), Green No. 204 (Pyranine Conch), Green No. 205 (Light Green SF Yellow), Green No. 401 (Naphthol Green B), Green No. 402 (Guinea Green B), Blue No. 1 (Brilliant Blue FCF), Blue No. 2 (Indigo Carmine) , Blue No. 202 (Patent Blue NA), Blue No. 205 (Alfazurin FG), Brown No. 201 (Resorcin Brown), Purple No. 401 (Arizurol Purple), Black No. 401 (Naphthol Blue Black), etc. can. These can be used alone or in combination of two or more.

b. Oxidation dyes As dyes, oxidation dyes can be used. Oxidative dyes are dyes typically used in permanent hair dyes.

There are no particular restrictions on the oxidation dye (oxidation dye intermediate), and the oxidation dye (oxidation dye intermediate) itself may be of a type that undergoes oxidative polymerization by itself and changes into a polymeric chromophore to produce color, or Alternatively, the oxidation dye (oxidation dye intermediate) and the coupler may be oxidatively polymerized to form a polymeric chromophore to form a color.

Examples of oxidation dyes (oxidation dye intermediates) 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-methylphenol, 2-aminophenol -5-acetamidophenol, 3,4-diaminobenzoic acid, 5-aminosalicylic acid, 2,4,5,6-tetraminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine, 4,5- Examples include diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1-hydroxyethylpyrazole, and salts thereof (eg, sulfates). These can be used alone or in combination of two or more.

Couplers that can be oxidatively polymerized with the above-mentioned oxidative dyes include, for example, metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4-(2-hydroxyethylamino)anisole, and 2,4-diamino-5-methyl. Phenethol, 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, meta-aminophenol, 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-metaminophenol, 2-methyl-4 -Methoxy-5-(2-hydroxyethylamino)phenol, 2-methyl-4-fluoro-5-aminophenol, para-aminoorthocresol, resorcin, 2-methylresorcin, 4-chlororesorcin, 1-naphthol, 1,5 -dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5-methylphenol, 4-hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxy Benzomorpholine, 3,4-methylenedioxyphenol, 2-bromo-4,5-methylenedioxyphenol, 3,4-methylenedioxyaniline, 1-(2-hydroxyethyl)amino-3,4-methylenedi Oxybenzene, 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, or salts thereof (eg, sulfate, hydrochloride), and the like. These can be used alone or in combination of two or more.

c. Direct dyes Direct dyes can be used as dyes. Direct dyes are dyes typically used in permanent hair dyes.

Direct dyes are not particularly limited, and include, for example, nitro dyes, disperse dyes, basic dyes, and the like. These can be used alone or in combination of two or more.

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, nitroparamine, 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. Examples include 3,N,N-bis-(2-hydroxyethyl)-2-nitro-paraphenylenediamine.

Examples of the disperse dye include Disperse Violet 1, Disperse Blue 1, Disperse Black 9, and the like.

Examples of the basic dye 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.

(Alkaline agent)
In some embodiments, the composition for preventing hair dye fading of the present disclosure may include an alkaline agent. Alkaline agents have the function of swelling the hair and making it easier for various ingredients to penetrate inside the hair, and also decomposes oxidizing agents such as hydrogen peroxide to generate oxygen, thereby improving hair growth. It can indirectly contribute to the decomposition of melanin pigments or the polymerization of oxidative dyes.

There is no particular restriction on the amount of the alkaline agent to be blended, and for example, it can be 1% by mass or more, 3% by mass or more, 5% by mass or more, or 8% by mass or more with respect to the total amount of the composition. There is no particular upper limit to the amount of the alkaline agent blended, but it can be, for example, 30% by mass or less, 25% by mass or less, or 20% by mass or less.

There are no particular restrictions on the alkaline agent, and examples include ammonium salts such as ammonia, ammonium hydrogen carbonate, and ammonium phosphate; alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine; basic amino acids such as arginine and lysine; guanidine, Examples include organic amines such as 2-amino-2-methylpropane and monoisopropanolamine; and inorganic alkalis such as sodium hydroxide and potassium hydroxide. Furthermore, a buffer solution in combination with these salts (for example, phosphoric acid--sodium salt of phosphoric acid), etc. can be used. Preferred alkaline agents include ammonia, ammonium salts, and alkanolamines. These alkaline agents can be used alone or in combination of two or more.

(Oxidant)
In some embodiments, the composition for preventing hair dye fading of the present disclosure may include an oxidizing agent. The oxidizing agent has the function of promoting the bleaching of melanin pigment in the hair, and can also exert the effect of determining the coloring effect by oxidative polymerization of the oxidative dye intermediate and any coupler.

The amount of the oxidizing agent is not particularly limited, and may be, for example, 0.1% by mass or more, 0.5% by mass or more, or 1.0% by mass or more based on the total amount of the composition, and It can be 12% by mass or less, 9.0% by mass or less, or 6.0% by mass or less.

There are no particular limitations on the oxidizing agent, and examples include hydrogen peroxide, hydrogen peroxide salts (e.g., sodium hydrogen peroxide, etc.), peroxide salts (e.g., ammonium peroxide, potassium peroxide, etc.), persulfates (e.g., , ammonium persulfate, etc.), perborate (e.g., sodium perborate, ammonium perborate, potassium perborate, etc.), bromate (e.g., sodium bromate, etc.), periodate, urea peroxide Examples include salts, percarbonates (eg, sodium percarbonate, etc.). These can be used alone or in combination of two or more.

(Oil agent)
In some embodiments, the composition for preventing hair dye fading of the present disclosure may include an oil and fat agent. Oils and fats may be incorporated into the composition, for example, to improve application performance, provide a feeling of use (eg, moist feeling), provide an emollient effect on hair, and the like.

There is no particular restriction on the amount of the oil/fat agent, for example, 0.1% by mass or more, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more based on the total amount of the composition. It can be 5.0% by mass or more, and can be 20% by mass or less, 18% by mass or less, 15% by mass or less, 13% by mass or less, or 10% by mass or less.

There are no particular restrictions on the oil or fat agent, and examples thereof include oily components such as higher alcohols, higher fatty acids, and hydrocarbon oils. These can be used alone or in combination of two or more.

Examples of higher alcohols include linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, and cetostearyl alcohol; isostearyl alcohol, monostearyl glycerin ether (batyl alcohol), and 2-decyltetra Branched chain alcohols such as decynol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol can be mentioned.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, undecylenic acid, tolic acid, isostearic acid, linoleic acid, linoleic acid, Examples include eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, vaseline, and microcrystalline wax.

<Form of composition>
The form of the composition for preventing hair dye fading of the present disclosure is not particularly limited, and for example, forms such as liquid, gel, paste, cream, wax, etc. can be appropriately selected.

Among the above forms, cream-like forms are preferred. A cream composition is more easily retained on the hair than a liquid composition, and the first compound and the second compound in the composition of the present disclosure are more likely to be fixed on the hair surface or damaged areas. , it is possible to further improve the anti-fading property.

The viscosity (viscosity at the time of application) of a creamy composition, for example, a mixture of the first and second parts used in a two-part hair dye kit, is determined by the ease with which it can be applied to the hair. From the viewpoints of Can be done. The upper limit of the viscosity of the cream composition is not particularly limited, and for example, from the viewpoint of ease of application to hair, 100,000 mPa·s or less, 80,000 mPa·s or less, 60,000 mPa·s or less, It can be 55,000 mPa·s or less, or 50,000 mPa·s or less. Here, the viscosity is intended to be the viscosity measured at 2 rpm in an atmosphere of 25° C. using a B-type viscometer (RV-type viscometer RVDVI+, manufactured by Brookfield, rotor number 6).

The composition of the present disclosure may be in the form of an oil-in-water or water-in-oil emulsion prepared using water, a surfactant, an oil, and the like.

《Hair dyeing kit》
The hair dyeing kit of the present disclosure includes an agent that is a composition for preventing hair dyeing and fading, and instructions for use. Here, the instruction manual refers to, in addition to the general instruction manual attached to the kit in the form of a document, for example, the packaging container containing the kit, or the tube into which the composition for preventing hair dye fading is injected. It may also include packaging containers such as those with instructions for use printed on them.

Some specific embodiments of the hair dye kit are illustrated below, but the kit of the present disclosure is not limited thereto.

The hair dye fading prevention composition, alkaline agent, oxidizing agent, dye, etc. used in the following kits can be the same as those described above. Any optional components may be blended as appropriate. Moreover, the form of the contents contained in each agent shown below can be the same as the form of the composition described above.

In some embodiments, the hair dyeing kit of the present disclosure can include an agent that is a composition for preventing fading of dyed hair containing a dye, and instructions for use.

In some embodiments, the hair dyeing kit of the present disclosure includes a first part that is a hair dye fading prevention composition containing a dye and an alkaline agent, a second part containing an oxidizing agent, and instructions for use. You can prepare.

In some embodiments, the hair dyeing kit of the present disclosure includes a second part that is a hair dye fading prevention composition containing an oxidizing agent, a first part containing a dye and an alkaline agent, and instructions for use. You can prepare.

In some embodiments, the hair dyeing kit of the present disclosure includes a third agent that is a hair dye fading prevention composition, a first agent that includes a dye and an alkaline agent, and a second agent that includes an oxidizing agent. A user's manual may also be provided. Here, the third agent may further contain, for example, a persulfate.

In the embodiments described above, the composition for preventing hair dye fading is configured as one agent, but such a composition may be configured as two or more agents.

<Dosage form>
The various agents mentioned above can be appropriately blended into containers such as tubes, and there are no particular restrictions on their dosage forms, such as pump sprays, aerosol sprays, pump foams, aerosol foams, creams, gels, lotions, etc. can be mentioned. Among these, as mentioned above, from the viewpoint of retention performance on hair, bleaching prevention performance, etc., cream dosage form is preferred at least as the dosage form of the agent containing the composition of the present disclosure.

<how to use>
The various agents used in the hair dye kit described above can be applied to hair by known methods. For example, in the case of a two-part method, the first part and the second part can be mixed together, applied to the hair, and washed away after a predetermined period of time. In the case of a three-drug formula, for example, the first to third parts can be mixed and carried out in the same manner.

The present invention will be described in more detail with reference to Examples below, but the present invention is not limited thereto. In the following, unless otherwise specified, the amounts are expressed in mass %.

《Examples 1 to 7 and Comparative Examples 1 to 5》
The first part (composition containing a dye) of a two-part hair dye having each formulation shown in Table 2 was prepared by a conventional method. In addition, a second part (composition containing an oxidizing agent) of a two-component hair dye having the formulation shown in Table 1 below was prepared by a conventional method. The following evaluations were performed using these first and second agents, and the results are shown in Table 2 and FIG. 1.

<Evaluation method>
(Bleaching prevention evaluation: color difference (ΔE ^* _ab ))
A bleaching agent containing 60% by mass of ion-exchanged water, 8% by mass of anhydrous sodium metasilicate, 20% by mass of ammonium persulfate, and 12% by mass of 35% hydrogen peroxide was applied to 2 g of black hair strands and heated at 31°C. After leaving it for 20 minutes, it was washed with water and air-dried to prepare damaged hair.

A mixture prepared by uniformly mixing the first and second agents was applied to damaged hair, left at 31°C for 30 minutes, washed with water, air-dried to prepare dyed hair, and measured using a spectrophotometer. The hue (a ^* ₁ , b ^* ₁ ) and lightness (L ^* ₁ ) of the dyed hair were measured using a CM-3600d (manufactured by Konica Minolta).

Next, the dyed hair was placed in a container containing 5% shampoo solution, immersed for 30 minutes at 40°C, washed with water, and air-dried to prepare shampoo-treated ^hair . ₂ , b ^* ₂ ) and lightness (L ^* ₂ ) were measured.

Then, the obtained measurement results were introduced into Equation 3 below to calculate the color difference (ΔE ^* _ab ). Note that if the color difference differs by about 1, the color tends to be perceived as clearly different when visually observed:

<Prescription and evaluation results of the first and second agents of the two-component hair dye>

<result>
As can be seen from Table 2 and FIG. 1, the color differences of Comparative Examples 2 to 5, which used compositions containing only either the first compound or the second compound, were all over 7.0. Similar to Comparative Example 1 in which a composition containing neither the compound nor the second compound was used, the color was clearly faded.

On the other hand, the color differences of Examples 1 to 7 using compositions containing both the first compound and the second compound are all less than 7.0, and the color difference of Examples 1 to 7 using compositions containing both the first compound and the second compound is less than 7.0. Comparison with Comparative Example 1 using 100% of the total color fading was confirmed to be clearly suppressed.

Claims (14)

At least one first compound selected from L-ascorbic acid derivatives and salts thereof represented by the following formula 1, and
a cationic second compound,
A composition for preventing hair dye fading, comprising:
In formula 1,
R ¹ is each independently hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, or a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms; is the basis,
R ² is hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, or a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms;
^R3 is hydrogen, a straight chain or branched saturated or unsaturated hydrocarbon group having 8 to 36 carbon atoms, a straight chain or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms, a sugar residue, phosphorus; is an acid ester group or a sulfuric ester group, and
At least one of R ¹ to R ³ is a linear or branched saturated or unsaturated fatty acid residue having 8 to 36 carbon atoms. The composition of claim 1, wherein the first compound is ascorbyl tetra-2-hexyldecanoate. The composition according to claim 1 or 2, wherein the second compound is a monoalkyl or dialkyl type quaternary ammonium salt represented by the following formula 2:
In formula 2,
One or two of R ⁴ to R ⁷ represents an alkyl group having 8 to 24 carbon atoms which may be substituted with a hydroxy group,
Those other than the above one or two of R ⁴ to R ⁷ represent an alkyl group having 1 to 3 carbon atoms, which may be substituted with a hydroxy group, or a hydrogen atom, and
A ⁻ represents an anion. The content of the first compound is 0.03% by mass or more and 1.0% by mass or less based on the total amount of the composition, and the content of the second compound is 0.03% by mass or more and 1.0% by mass or less based on the total amount of the composition. The composition according to any one of claims 1 to 3, wherein the content is 03% by mass or more and 1.0% by mass or less. The composition according to any one of claims 1 to 4, further comprising a dye and used for hair dyeing. 6. The composition of claim 5, further comprising an alkaline agent. The composition according to any one of claims 1 to 4, further comprising an oxidizing agent and used for hair dyeing. Composition according to any one of claims 1 to 4, further comprising a persulfate. Composition according to any one of claims 1 to 4, for use as a hair conditioner, hair rinse or hair treatment. An agent which is the composition according to any one of claims 1 to 4, and instructions for use.
A hair dye kit that includes: 11. The kit of claim 10, wherein the agent further comprises a dye. The kit according to claim 11, wherein the agent is a first agent that further includes an alkaline agent, and further comprises a second agent that includes an oxidizing agent. The kit according to claim 10, wherein the agent is a second agent that further includes an oxidizing agent, and further comprises a first agent that includes a dye and an alkaline agent. The kit according to claim 10, wherein the agent is a third agent, and further comprises a first agent containing a dye and an alkaline agent, and a second agent containing an oxidizing agent.