WO2020158619A1 - Hair dye composition and hair dyeing method - Google Patents

Abstract

[Problem] To provide: a hair dye composition which prevents a change in color of hair through repeated washing from that immediately after hair dyeing, and enables the hair to be dyed uniformly even when the level of damage is not uniform from the root to the tip of the hair; and a hair dyeing method. [Solution] This hair dye composition contains a component (A) and a compound (B), the compound (A) being a triaminotriphenylmethane compound represented by Formula (1), the component (B) being a compound (b1) which is at least one selected from Basic Blue 75, Basic Blue 124, and HC Blue 15 or a compound (b2) which is one selected from Basic Blue 99 and HC Blue 16. The mass ratio (A)/(B) of the amounts thereof contained is a specific ratio.

Description

Hair dye composition and hair dyeing method

The present disclosure relates to a hair dye composition and a hair dyeing method, and more particularly to a hair dye composition containing a direct dye and a hair dyeing method.

Compositions for hair dyeing include permanent hair dyes such as oxidative hair dyes that use oxidative dyes, and semi-permanent hair dyes that use direct dyes. The semi-permanent hair dye has lower fastness to washing hair than the permanent hair dye, but has an advantage that damage to the hair can be suppressed because an oxidizing agent or the like is not used.

There are basic dyes as direct dyes used in semi-permanent hair dyes. Patent Document 1 describes a hair dye composition containing Basic Blue 75 as a direct dye. Further, Patent Document 2 describes a hair dye composition containing, as a direct dye, basic blue 75, basic purple 10, and basic tea 16.

International Publication No. 2009/041514 JP, 2011-190187, A

2. Description of the Related Art In recent years, the market for fashion colors, in which all or part of hair is dyed in a bright color and enjoyed, is expanding.
A hair dye composition for fashion color is required to exhibit a highly fashionable and bright color on dyed hair. In a hair dye composition containing a direct dye, it is often difficult to express a desired color with one type of direct dye, and a plurality of direct dyes having different coloring properties are usually used in combination. Here, direct dyes, particularly ionic dyes such as basic dyes, are easily discolored when the hair is repeatedly washed. Therefore, if the fading properties of a plurality of direct dyes having different coloring properties are greatly different, the hue of the hair is greatly changed immediately after dyeing and after repeated washing. The change in the hue of the hair may be a problem especially for a user who enjoys a vivid hair color that is highly fashionable.

Also, the user's hair may be damaged due to repeated hair coloring and bleaching. According to the study of the present inventors, in such damaged hair, the hue change of the hair becomes large immediately after dyeing and after repeated washing. Damaged hair has more negative charge, and thus a basic dye having a positive charge is easily bonded. Therefore, in damaged hair, the hair dyeing power of the basic dye increases. On the other hand, in the case of damaged hair, the hair itself is also made hydrophilic, so that water permeates into the inside of the hair during washing, and the dye easily flows out when the water flows out from the inside of the hair. Therefore, the damaged hair has a large fading width and a large hue change width.

In addition, as a result of repeated hair coloring and the like on the user's hair for a short period of time, for example, on a monthly basis, damage is accumulated on the tips of the hair compared to the root, and the damage level of the hair is It may be uneven from root to tip. In such a case, since the hair dyeing power of the basic dye varies depending on the damage level of the hair as described above, it is difficult to dye the hair in a uniform color from the root to the hair tip.

One aspect of the present disclosure suppresses a change in hue of hair immediately after dyeing and after repeated washing, and evenly dyes hair even if the damage level from the root to the tip of the hair is uneven. Provided is a hair dye composition and a hair dyeing method.

One aspect of the present disclosure is, as a component (A), a triaminotriphenylmethane compound represented by the following formula (1):

(In the formula (1), R1, R2, R3, R4, R5 and R6 are independently of each other a hydrogen atom, a C1-C4 alkyl group, a C1-C4 mono-hydroxyalkyl group, a C1-C4 poly-hydroxyalkyl group. Group, a phenyl group, or a benzyl group, R7, R8, and R9 independently of one another are a hydrogen atom, a halogen atom, or a C1-C4 alkyl group, and X- is a halide ion, a hydrogensulfate ion, It is a methosulfate ion, a benzoate ion, or an acetate ion.)
As the component (B), at least one component selected from basic blue 75, basic blue 124, and HC blue 15 (b1) component, or one selected from basic blue 99 and HC blue 16 A hair dye composition containing a component (b2):
When the hair dye composition contains the component (b1) as the component (B), the mass ratio of the content of the component (A) in the hair dye composition to the content of the component (b1) in the hair dye composition ( A)/(b1) is 0.45 or more and 5.5 or less, and when the hair dye composition contains the component (b2) as the component (B), the inclusion of the component (b2) in the hair dye composition. The mass ratio (A)/(b2) of the content of the component (A) in the hair dye composition to the amount is 0.010 or more and 0.55 or less.

In one aspect of the present disclosure, the component (A) may be basic purple 1, basic purple 2, basic purple 3, basic purple 4, basic purple 14, or basic red 9.
In one aspect of the present disclosure, the component (b1) may be contained as the component (B).

In one aspect of the present disclosure, the mass ratio (A)/(b1) of the content of the component (A) in the hair dye composition to the content of the component (b1) in the hair dye composition is 0.50 or more. It may be 3.0 or less.

According to one aspect of the present disclosure, when hair obtained by bleaching black hair is dyed with a hair dye composition, a color difference ΔE between the hair before dyeing and the hair after dyeing in a CIE L*a*b* color space display system. However, it may be 20 or more and 35 or less.

In one aspect of the present disclosure, a hair dyeing method may be provided which includes a step of applying the hair dye composition to hair.

According to one aspect of the present disclosure, a change in the hue of hair immediately after dyeing and after repeated washing is suppressed, and even if the damage level from the root to the tip of the hair is uneven, it is uniform. Provided are a hair dye composition capable of dyeing hair and a hair dyeing method.

Hereinafter, the hair dye composition of one embodiment of the present disclosure will be described in detail.
The hair dye composition according to one aspect of the present disclosure includes a triaminotriphenylmethane compound represented by the following formula (1) as the component (A), and basic blue 75 and basic blue 124 as the component (B). And a component (b1) which is at least one selected from HC blue 15 or a component (b2) which is one selected from basic blue 99 and HC blue 16, and a hair dye composition. The mass ratio (A)/(B) of the content of the component (A) in the hair dye composition to the content of the component (B) therein is within a predetermined range described later.

(In the formula (1), R1, R2, R3, R4, R5 and R6 are independently of each other a hydrogen atom, a C1-C4 alkyl group, a C1-C4 mono-hydroxyalkyl group, a C1-C4 poly-hydroxyalkyl group. Group, a phenyl group, or a benzyl group, R7, R8, and R9 are each independently a hydrogen atom, a halogen atom, or a C1-C4 alkyl group, and X- is a halide ion, a hydrogen sulfate ion ( HSO4-), methosulfate ion (CH3OSO3-), benzoate ion (C6H5COO-), or acetate ion (CH3COO-).)
The component (A) is a direct dye (basic dye) that dyes hair in a red to purple color. On the other hand, the component (B) is a direct dye that dyes hair in a bluish color. By using the component (A) and the component (B) in combination, the hair can be dyed in a bright purple color.

According to the studies by the present inventors, although the component (A) and the component (B) have different color tones in hair, in the hair dye composition in which these components are combined, the hair is immediately washed and the hair is repeatedly washed. It is difficult for the hue of the hair to change after and after. This is because the easiness of dyeing of the component (A) on the hair and the fading property are close to those of the component (B), and the color tone of the component (A) and the color tone of the component (B) are balanced. It is thought to be due to fading well. Factors such as the molecular weight, high water solubility, and cationic strength of each dye are involved in the ease of dyeing and fading of each dye to hair. It is believed that Furthermore, the hair dye composition using the combination of the component (A) and the component (B) is less likely to be affected by the damage level of the hair, and the damage level from the root to the tip of the hair is not affected. Even if it is uniform, hair can be dyed uniformly.

Also, since both components (A) and (B) are difficult to lose color, they retain a relatively deep shade even after repeated hair washing, and have good color retention. Further, since the hair dye composition containing the component (A) and the component (B) is easily discolored by the decoloring agent, the hair can be easily dyed again with the same or different hair dye composition. Hereinafter, the ease of discoloration of the hair dye composition by the decolorizing agent is referred to as "recolorability".

Hereinafter, each component contained in the hair dye composition according to one aspect of the present disclosure will be described in detail.
[(A) component]
The component (A) is a triaminotriphenylmethane compound represented by the above formula (1).

Examples of the C1-C4 alkyl group in the formula (1) include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group and a tert-butyl group. To be Examples of the C1-C4 mono-hydroxyalkyl group in the formula (1) include β-hydroxyethyl group, β-hydroxypropyl group and γ-hydroxypropyl group. Examples of the C1-C4 poly-hydroxyalkyl group in the formula (1) include β,γ-hydroxypropyl group and the like. Examples of the halide ion in the formula (1) include bromide ion, chloride ion, iodide ion and the like.

R1, R2, R3, R4, R5 and R6 in the formula (1) are preferably, independently of each other, a hydrogen atom or a C1-C4 alkyl group. In addition, R7, R8 and R9 in the formula (1) are preferably, independently of each other, a hydrogen atom or a C1-C4 alkyl group. Further, X- in the formula (1) is preferably a halide ion, more preferably a chloride ion.

Specific examples of the component (A) include basic purple 1 represented by the following formula (2), basic purple 2 represented by the following formula (3), and base represented by the following formula (4). Examples include basic purple 3, basic purple 4 represented by the following formula (5), basic purple 14 represented by the following formula (6), and basic red 9 represented by the following formula (7).

Among these, the component (A) is preferably a basic purple compound represented by the formula (2) to the formula (6), more preferably a basic purple 2 represented by the formula (3), Basic purple 3 represented by the formula (4) or basic purple 14 represented by the formula (6), and more preferably basic purple 2 represented by the formula (3).

The content ratio of the component (A) in the hair dye composition is preferably 0.001% by mass or more and 1.0% by mass or less, more preferably 0.005% by mass or more and 0.5% by mass or less, and further preferably Is 0.01% by mass or more and 0.3% by mass or less. When the content ratio of the component (A) is 0.001% by mass or more, the hair dyeing power of the hair dye composition increases. Further, when the content ratio of the component (A) is 1.0% by mass or less, the component (A) is uniformly dispersed and dissolved in the hair dye composition, so that the stability of the hair dye composition is improved. To do. In addition, background stains that may occur during hair dyeing are also suppressed.

[(B) component]
The hair dye composition of one aspect of the present disclosure has, as the component (B), basic blue 75 represented by the following formula (8), basic blue 124 represented by the following formula (9), and the following formula (9). (B1) component which is at least one selected from HC blue 15 represented by 10), or basic blue 99 represented by the following formula (11), and HC blue represented by the following formula (12). It contains a component (b2) which is one selected from 16.

The three compounds included in the component (b1) can be used in combination of two or more kinds.

Here, the content ratio of the (A) component and the (B) component in the hair dye composition is important from the viewpoint of the effect of suppressing the change in the hue of the hair and the effect that the hair can be uniformly dyed regardless of the damage level. Is. Specifically, when the hair dye composition contains the component (b1) as the component (B), the mass ratio (A)/(b1) of the content of the component (A) to the component (b1) is 0. It is 0.45 or more and 5.5 or less. On the other hand, when the hair dye composition contains the component (b2) as the component (B), the mass ratio (A)/(b2) of the content of the component (A) to the component (b2) is 0.010 or more. It is 0.55 or less. When the content ratio of the (A) component and the (B) component is within the above range, the blending balance of the (A) component and the (B) component is good, and the hair is immediately after dyeing and after repeated washing. The change in hue is suppressed. When the content ratio of the component (A) and the component (B) is within the above range, hair can be dyed uniformly even if the damage level from the root to the tip of the hair is uneven. Furthermore, when the content ratio of the component (A) and the component (B) is within the above range, the recolorability and the color retention of the hair dye composition are improved.

According to the study by the present inventors, all of the compounds as the component (B) are common in that they are direct dyes for dyeing hair in a bluish color, but three types of compounds summarized as the component (b1) It has been found that the hair dyeing method has a higher hair dyeing power than the two compounds grouped as the component (b2), and that a small amount of hair can be dyed well. Therefore, the mass ratio (A)/(B) of the content is larger when the hair dye composition contains the component (b1) as the component (B) than when it contains the component (b2). ..

The mass ratio (A)/(b1) of the content is preferably 0.50 or more and 3.0 or less, more preferably 0.60 or more and 2.4 or less, and further preferably 0.70 or more. It is 1.7 or less. On the other hand, the content mass ratio (A)/(b2) is preferably 0.020 or more and 0.40 or less, and more preferably 0.050 or more and 0.30 or less.

According to the study by the present inventors, the component (B) is preferably (b1) because it has a higher effect of suppressing a change in the hue of the hair and a higher effect of uniformly dyeing the hair regardless of the damage level. It is an ingredient. Further, since the component (B) has a higher effect of suppressing a change in the hue of the hair and an effect of uniformly dyeing the hair regardless of the damage level, the component (b1) is preferably basic blue 75. And basic blue 124, and more preferably basic blue 75.

When the hair dye composition contains the component (b1) as the component (B), the content ratio of the component (b1) in the hair dye composition is preferably 0.01% by mass or more and 0.5% by mass or less. , And more preferably 0.02 mass% or more and 0.3 mass% or less. On the other hand, when the hair dye composition contains the component (b2) as the component (B), the content ratio of the component (b2) in the hair dye composition is preferably 0.01% by mass or more and 1.0% by mass or more. % Or less, more preferably 0.05% by mass or more and 0.8% by mass or less.

When the ratio of the content of the component (b1) is 0.01% by mass or more, or the ratio of the content of the component (b2) is 0.01% by mass or more, the hair dyeing power of the hair dye composition is high. When the content ratio of the component (b1) is 0.5% by mass or less, or the content ratio of the component (b2) is 1.0% by mass or less, the component (B) is contained in the hair dye composition. Since it is evenly dispersed and melted, the stability of the hair dye composition is improved. Moreover, the background stain that may occur when the hair is dyed by the hair dye composition is also suppressed.

[Dyeability of hair dye composition]
The hair dye composition according to one embodiment of the present disclosure can dye hair in a purple color. Specifically, black hair is bleached, and more specifically, black hair is treated with CIE L*a*b* color space display system to have an L* value of 45 or more and 50 or less and an a* value of 10 or more and 15 or more. Hereinafter, when bleached hair having a b* value of 27 or more and 32 or less (hereinafter, referred to as “bleach hair”) is dyed with the above hair dye composition, CIE L*a*b* color space display system The a* value of the hair after dyeing is preferably −2 or more and 20 or less, and the b* value is −5 or more and 10 or less. The CIE L*a*b* color space display system is an index representing the color of an object. The a* value indicates a hue in the direction from red-purple to blue-green. A positive value increases the reddish purple as the absolute value increases, and a negative value increases the blue-greenness. The b* value indicates a hue in the direction from yellow to blue, and a positive value increases the yellowishness as the absolute value increases, and a negative value increases the bluishness as the absolute value increases. The a* value of the dyed hair is more preferably 0 or more and 15 or less, still more preferably 3 or more and 10 or less. The b* value of the dyed hair is more preferably -4 or more and 5 or less, and further preferably -3 or more and 3 or less. In addition, the numerical range of L* value, a* value, and b* value in bleached hair is a value that is assumed to be 14 levels or more and 15 levels or less on the JHCA (Japan Hair Color Association) hair coloring level scale. is there.

Also, when the hair obtained by bleaching black hair is dyed as described above, the L* value of the dyed hair is preferably 20 or more and 35 or less. The L* value indicates the lightness of the color. The L* value takes a numerical value of 0 to 100, and it is closer to black as it goes to 0 and closer to white as it goes to 100. The L* value of the dyed hair is more preferably 20 or more and 30 or less, still more preferably 20 or more and 28 or less.

Further, in the case of bleaching black hair as described above, the color difference ΔE between the hair before dyeing and the hair after dyeing is preferably 20 or more and 35 or less. ΔE is a numerical value indicating the degree of dyeing based on the color before dyeing, and the larger the numerical value, the higher the hair dyeing power. ΔE can be calculated by the CIE 2000 color difference formula (CIE DE 2000 color difference formula). The color difference ΔE is more preferably 24 or more and 33 or less, still more preferably 28 or more and 32 or less.

The a* value, b* value, and L* value in these CIE L*a*b* color space display systems can be measured by a spectrocolorimeter under the condition of standard light source D65. Specific measuring methods will be shown in Examples.

[Other ingredients]
The hair dye composition according to one aspect of the present disclosure includes, if necessary, components other than the components described above, for example, a solubilizer, a surfactant, a water-soluble polymer, an oil component, a polyhydric alcohol, a pH adjuster, a sugar, It may further contain a preservative, a stabilizer, an animal or plant extract, an antioxidant, a chelating agent, an amino acid, a cooling sensation, a herbal medicine extract, a vitamin, a fragrance, an ultraviolet absorber and the like.

Examples of solubilizers include water and organic solvents (solvents). Specific examples of the organic solvent include ethanol, n-propanol, isopropanol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamic alcohol, anis alcohol, Examples thereof include p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate and alkyl ether. Of these solubilizers, only one kind may be contained alone, or two or more kinds may be contained in combination. Of these, water is preferably applied because of its excellent ability to dissolve the other components in the hair dye composition. When water is used as the solvent, the content of water in the hair dye composition is preferably 40% by mass or more, and more preferably 50% by mass or more.

The surfactant may be added to the hair dye composition as, for example, an emulsifier or an ingredient for solubilizing each ingredient. Further, the surfactant may be blended for adjusting the viscosity of the hair dye composition or improving the viscosity stability, for example. Examples of the surfactant include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.

Specific examples of the anionic surfactant include, for example, alkyl ether sulfate, alkyl sulfate, alkyl ether sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated. Fatty acid salts, alkyl or alkenyl ether carboxylic acid salts, α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphoric acid mono- or diester type surfactants, sulfosuccinic acid esters, N-alkyloylmethyl taurine salts, and them And the like. Specific examples of the counter ion of the anionic group of these surfactants include sodium ion, potassium ion, triethanolamine and the like. More specifically, examples of the alkyl ether sulfate ester salt include POE lauryl ether sulfate sodium salt. POE is an abbreviation for polyoxyethylene. Specific examples of the alkyl sulfate include sodium lauryl sulfate and sodium cetyl sulfate. Specific examples of the alkylsulfate derivative include POE sodium lauryl sulfate and the like. Specific examples of the sulfosuccinate ester include disodium lauryl sulfosuccinate and the like. Specific examples of the N-alkyloylmethyltaurine salt include N-stearoyl-N-methyltaurine sodium and the like.

Specific examples of the cationic surfactant include, for example, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, behenylPGtrimonium chloride, stearoxypropyltrimonium chloride, aralkyltrimethylammonium chloride. , Alkyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, lanolin fatty acid aminopropylethyl dimethyl ammonium sulphate, stearyl trimethyl ammonium saccharin, cetyl trimethyl ammonium saccharin, methacryloyloxyethyl trimethyl ammonium chloride Behenyltrimethylammonium methyl sulfate, behenyldimethylamine, diethylaminoethylamide behenic acid, dimethylaminopropylamide behenic acid, dimethylaminoethylamide behenic acid, stearyldimethylamine, palmitoxypropyldimethylamine, stearoxypropyldimethylamine, dimethyl stearate Aminopropylamide and the like can be mentioned. Among these, quaternary ammonium salts typified by cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, and tertiary amines typified by stearic acid dimethylaminopropylamide have excellent hair dyeing power and hair feel. It is preferable from the viewpoint of excellent improvement effect. The content of the cationic surfactant in the hair dye composition is appropriately set, but is preferably 0.1% by mass or more and 5.0% by mass or less, more preferably 0.5% by mass or more and 3.0% by mass. % Or less. Within such a range, the hair dyeing power of the hair dye composition can be further improved.

Specific examples of the amphoteric surfactant include, for example, cocobetaine, lauramidopropylbetaine, cocamidopropylbetaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidepropylbetaine, laurylbetaine (lauryldimethylaminoacetate betaine), and lauryl. Examples thereof include sodium aminopropionate and the like.

Specific examples of the nonionic surfactant include ether type nonionic surfactants, ester type nonionic surfactants, and alkyl glucosides.
Specific examples of the ether-type nonionic surfactant include, for example, POE (5.5) cetyl ether (HLB value 10.5), POE (6) cetyl ether (HLB value 10.5), POE (6). Cetyl ether (HLB value 10.5), POE(7) cetyl ether (HLB value 11.5), POE(10) cetyl ether (HLB value 13.5), POE(15) cetyl ether (HLB value 15.5) ), POE(20) cetyl ether (HLB value 17.0), POE(23) cetyl ether (HLB value 18.0), POE(25) cetyl ether (HLB value 18.5), POE(30) cetyl ether (HLB value 19.5), POE(40) cetyl ether (HLB value 20.0), POE(2) cetyl ether (HLB value 8.0), POE(4) cetyl ether (HLB value 8.4), POE (5) cetyl ether (HLB value 9.5) and other POE cetyl ethers (cetes); POE (20) stearyl ether (HLB value 18.0), POE (150) stearyl ether (HLB value 19.2), POE (4) stearyl ether (HLB value 9.0), POE (5) stearyl ether (HLB value 9.0), POE (2) stearyl ether (HLB value 8.0) and other POE stearyl ethers (stearless); POE (10) behenyl ether (HLB value 10.0), POE (20) behenyl ether (HLB value 16.5), POE (30) behenyl ether (HLB value 18.0), POE (150) behenyl ether (HLB) Value 19.1), POE(2) behenyl ether (HLB value 4.3), POE(3) behenyl ether (HLB value 5.8), POE(5) behenyl ether (HLB value 7.0), POE( 6) POE behenyl ether (Behenes) such as behenyl ether (HLB value 8.9); POE (7) oleyl ether (HLB value 10.5), POE (10) oleyl ether (HLB value 14.5), POE ( 15) oleyl ether (HLB value 16.0), POE(20) oleyl ether (HLB value 17.0), POE(50) oleyl ether (HLB value 18.0), POE(2) oleyl ether (HLB value 4) .9), POE (3) oleyl ether (HLB value 6.6), and other POE oleyl ethers (oles); POE (4.2) lauryl ether (HLB value 11.5), POE (9) lauryl ether (HLB) Value 1 4.5), POE(10) lauryl ether (HLB value 14.5), POE(21) lauryl ether (HLB value 19.0), POE(25) lauryl ether (HLB value 19.5), POE(2 ) POE lauryl ether (laureth) such as lauryl ether (HLB value 9.5), POE (3) lauryl ether (HLB value 8.4); POE (2) myristyl ether (HLB value 5.8), POE (3) ) POE myristyl ether such as myristyl ether (HLB value 7.7); POE octyldodecyl such as POE (2) octyldodecyl ether (HLB value 4.6) and POE (5) octyldodecyl ether (HLB value 8.5) Ethers; POE(2) hexyldecyl ether (HLB value 5.3), POE(4) hexyldecyl ether (HLB value 8.4) and other POE hexyldecyl ethers; POE(5) isostearyl ether (HLB value 7. 0) etc. POE isostearyl ether; POE nonyl phenyl ether; POE octyl phenyl ether; POE (10) POP (4) cetyl ether (HLB value 10.5), POE (20) POP (4) cetyl ether (HLB value) 16.5), POE(20)POP(8) cetyl ether (HLB value 12.5), POE(1)POP(4) cetyl ether (HLB value 9.5), etc. POE polyoxypropylene cetyl ether: POE (12) POE polyoxypropylene decyl tetradecyl ether such as POP (6) decyl tetradecyl ether (HLB value 8.5).

Note that in the compound name, POP is an abbreviation for polyoxypropylene. The numerical value in parentheses of the compound name POE represents the number of moles of ethylene oxide added. Further, the HLB of the compound is described with reference to the numerical values and the like described in the Nikko Chemicals Catalog (2014). The HLB of the compound is described in "Handbook-Cosmetics/Pharmaceutical Raw Materials-Revised Edition (March 1, 1978, Hataka, Nikko Chemicals Co., Ltd.)", "20.3.1 Measurement of HLB value by emulsification method" ( 854-855).

Specific examples of the ester type nonionic surfactant include POE sorbitan fatty acid esters such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, and POE sorbitan trioleate; Glyceryl monofatty acid esters such as POE glycerin monostearate and POE glycerin monomyristic acid; and POE sorbitol fatty acid esters such as POE sorbit tetraoleate, POE sorbit hexastearate, and POE sorbit monolaurate. The number of moles of POE added to the POE sorbitan fatty acid ester and the monoglyceryl monofatty acid ester is, for example, 5 or more. The number of moles of POE added to the POE sorbitol fatty acid ester is, for example, 6 or more. Specific examples of ester-type nonionic surfactants other than these include sorbit beeswax such as POE (6) POE sorbit beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol monolaurate, and parent Oil-type glyceryl monooleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, monolauric acid Examples thereof include sorbitan, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate, and POE reduced lanolin.

Specific examples of the alkyl glucoside include alkyl (C8 to C16) glucoside, POE methyl glucoside, and POE dioleic acid methyl glucoside. The number of moles of POE added to POE methyl glucoside and POE methyl gluconate dioleate is, for example, 20 or more.

Of these surfactants, only one kind may be contained alone, or two or more kinds may be contained in combination.
The water-soluble polymer may be added to the hair dye composition for the purpose of imparting an appropriate viscosity to the hair dye composition. Examples of water-soluble polymers include natural polymers, semi-synthetic polymers, synthetic polymers, and inorganic polymers.

Specific examples of the natural polymer, for example, starch, guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, tragacanth gum, pectin, mannan, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, Examples include casein, albumin, collagen, hydrolyzed collagen, dextrin, triglucopolysaccharide (pullulan) and the like.

Specific examples of the semi-synthetic polymer include, for example, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxyethyl cellulose dimethyl diallyl ammonium chloride, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxypropyl methyl cellulose, cationized cellulose, cationized guar gum, starch phosphorus. Examples thereof include acid esters, propylene glycol alginates, and alginates.

Specific examples of the synthetic polymer include, for example, polyvinylcaprolactam, polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), vinylpyrrolidone-vinyl acetate (VP/VA) copolymer, polyvinyl butyral, polyvinyl methyl ether, carboxyvinyl polymer, poly Sodium acrylate, polyacrylamide, polyethylene oxide, ethylene oxide/propylene oxide block copolymer, acrylic acid/alkyl acrylate copolymer, poly(dimethylmethylene piperidinium chloride) (polyquaternium-6), itaconic acid and POE alkyl ether A copolymer comprising a half-ester or an ester of methacrylic acid and a POE alkyl ether, and at least one monomer selected from acrylic acid, methacrylic acid and alkyl esters thereof can be mentioned.

Specific examples of the inorganic polymer include bentonite, aluminum magnesium silicate, laponite, hectorite, and silicic acid anhydride. Of these, only one kind may be contained alone, or two or more kinds may be contained in combination.

Of these water-soluble polymers, only one kind may be contained alone, or two or more kinds may be contained in combination.
The oily component may be added to the hair dye composition for the purpose of imparting a moisturizing feel to the hair. Examples of the oily component include fats and oils, waxes, hydrocarbons, ester oils, higher alcohols, higher fatty acids, alkyl glyceryl ethers, silicones and the like.

Specific examples of oils and fats include, for example, Argania spinosa kernel oil, olive oil (olives oil), camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil. Oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, coconut oil, evening primrose oil, apricot kernel oil, persic oil, peach kernel oil, palm oil, egg yolk oil and the like can be mentioned.

Specific examples of waxes include lanolin, beeswax, candelilla wax, carnauba wax, jojoba oil and the like.
Specific examples of the hydrocarbon include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, squalane, polybutene, polyethylene, microcrystalline wax, petrolatum, liquid paraffin, light isoparaffin, light liquid isoparaffin, isoparaffin, α-olefin oligomer, synthetic Squalane etc. are mentioned. Among the oily components, hydrocarbons are preferably used from the viewpoint of improving formulation stability. Among these hydrocarbons, liquid paraffin is preferable from the viewpoint of being excellent in the effect of improving the formulation stability. The content of hydrocarbons in the hair dye composition is appropriately set, but is preferably 0.01% by mass or more and 20% by mass or less, more preferably 0.1% by mass or more and 10% by mass or less. Within such a range, formulation stability can be further improved.

Specific examples of the ester oil include, for example, diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl palmitate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-palmitate. Ethylhexyl, octyldodecyl ricinoleate, C10-C30 fatty acid cholesteryl/lanosteryl, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester (dipentaerythritol fatty acid ester ), cetyl caprate, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, cetyl 2-ethylhexanoate, isostearic acid hydrogenated castor oil and the like.

Specific examples of the higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol (cetearyl alcohol), oleyl alcohol, aralkyl alcohol, behenyl alcohol, 2-octyldodecanol, Examples include lauryl alcohol, myristyl alcohol, decyl tetradecanol, lanolin alcohol and the like. Among the oily components, higher alcohols are preferably used from the viewpoint of improving formulation stability and coatability on hair. Among these higher alcohols, higher alcohols having a carbon number of 16 or more, cetanol, stearyl alcohol, aralkyl alcohol, and behenyl alcohol are preferable from the viewpoint of excellent effect of improving formulation stability and coatability on hair. Further, by using two or more kinds of higher alcohols having different carbon numbers in combination, it is possible to further improve the formulation stability and the applicability to hair. When two or more higher alcohols having different carbon numbers are used in combination, it is preferable to use cetanol and stearyl alcohol from the viewpoint of excellent effect of improving formulation stability and coatability on hair. The content of the higher alcohol in the hair dye composition is appropriately set, but is 0.01% by mass or more and 20% by mass or less, more preferably 0.1% by mass or more and 15% by mass or less. Within such a range, formulation stability and coatability on hair can be further improved.

Specific examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid.

Specific examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, ceracyl alcohol, isostearyl glyceryl ether and the like.
Specific examples of silicones include, for example, dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane (dimethiconol), polyether-modified silicone (for example, ( PEG/PPG/butylene/dimethicone) copolymer), amino-modified silicone (for example, aminoethylaminopropylmethylsiloxane/dimethylsiloxane copolymer (amodimethicone)), betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone , Carboxy-modified silicone, fluorine-modified silicone and the like.

Of these oily components, only one kind may be contained alone, or two or more kinds may be contained in combination.
Examples of the polyhydric alcohol include glycol and glycerin. Examples of glycols include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, highly polymerized polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerin include glycerin, diglycerin, polyglycerin and the like. Of these polyhydric alcohols, only one kind may be contained alone, or two or more kinds may be contained in combination.

The pH adjuster may be added to the hair dye composition in order to adjust the pH of the hair dye composition. Examples of the pH adjuster include inorganic acids, organic acids and salts thereof. Specific examples of the inorganic acid include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, boric acid and the like. Furthermore, specific examples of phosphoric acid include orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, metaphosphoric acid, and the like. Specific examples of the organic acid include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucuronic acid, benzoic acid and the like. Specific examples of the salt include sodium salt, potassium salt, ammonium salt and the like. Among the pH adjusters, organic acids are preferably used from the viewpoint of improving the feel of hair. Among the organic acids, lactic acid is preferable from the viewpoint of excellent effect of improving the feel of hair. The content of the organic acid in the hair dye composition is appropriately set, but is preferably 0.001% by mass or more and 5% by mass or less, more preferably 0.01% by mass or more and 3% by mass or less. Within such a range, the feel of the hair can be further improved. In addition, among these pH adjusters, only one kind may be contained alone, or two or more kinds may be contained in combination.

Specific examples of sugars include monosaccharides such as glucose and galactose, disaccharides such as maltose, sucrose, fructose and trehalose, and sugar alcohols. Specific examples of the preservative include paraben, methylparaben, sodium benzoate, paraoxybenzoic acid ester, phenoxyethanol and the like. Specific examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid and the like. Specific examples of extracts of plants and animals or microorganisms include Sapindus trifoliatus fruit extract, hydrolyzed yeast extract and the like. Specific examples of the antioxidant include ascorbic acids and sulfites. Specific examples of chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and salts thereof, hydroxyethylethylenediaminetriacetic acid and salts thereof, and hydroxyethane. Examples thereof include diphosphonic acid (HEDP) and salts thereof. Specific examples of amino acids include threonine, arginine, theanine, taurine and the like. Examples of the cooling sensation agent include l-menthol. Only one of these components may be used, or two or more thereof may be used in combination.

Further, the hair dye composition of one aspect of the present disclosure may use a direct dye other than the components (A) and (B) within a range that does not impair the effects of the present invention. In general, direct dyes are those which are not reactive and are capable of developing color on their own. Specific examples of direct dyes include acid dyes, nitro dyes, basic dyes (cationic dyes), and disperse dyes.

Specific examples of the acid dyes include Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 201, Red No. 227, Red. 230 (1), Red 230 (2), Red 231, Red 232, Red 401, Red 502, Red 503, Red 504, Red 506, Yellow 4, Yellow 5 , Yellow 202 (1), Yellow 202 (2), Yellow 203, Yellow 402, Yellow 403 (1), Yellow 406, Yellow 407, Orange 205, Orange 207, Orange No. 402, Green No. 3, Green No. 204, Green No. 205, Green No. 401, Green No. 402, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201 , Black No. 401, Acid Blue 1, Acid Blue 3, Acid Blue 62, Acid Black 52, Acid Brown 13, Acid Green 50, Acid Orange 6, Acid Red 14, Acid Red 35, Acid Red 73, Acid Red 184, Brilliant Black 1 etc. are mentioned.

Specific examples of the nitro dye include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, N,N'- Bis(2-hydroxyethyl)-2-nitro-p-phenylenediamine, hydroxyethyl-2-nitro-p-toluidine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylamino Phenol, 4-amino-3-nitrophenol, 4-hydroxypropylamino-3-nitrophenol, piclamic acid, picric acid, and their salts, HC Blue No. 2, HC Blue No. 4, HC Blue No. 5 ,HCBlueNo.6,HCBlueNo.8,HCBlueNo.9,HCBlueNo.10,HCBlueNo.11,HCBlueNo.12,HCBlueNo.13,HCBlueNo.14,HC Blue No. 18, HC Blue No. 19, HC Brown No. 1, HC Brown No. 2, HC Green No. 1, HC Orange No. 1, HC Orange No. 2, HC Orange No. 3, HC Orange No .5, HcOrangeNo.7, HCRedNo.1, HCRedNo.3, HCRedNo.7, HCRedNo.8, HCRedNo.9, HCRedNo.10, HCRedNo.11 , HCRedNo.13, HCRedNo.14, HCRedNo.18, HCVioletNo.1, HCVioletNo.2, HCVioletNo.3, HCYellowNo.2, HCYellowNo.4, HC Yellow No.5,HC Yellow No.6,HC Yellow No.7,HC Yellow No.8,HC Yellow No.9,HC Yellow No.10,HC Yellow No.11,HC Yellow No.12,HC Yellow No .13, HCYellowNo.14, HCYellowNo.15, HCYellowNo.16, HCYellowNo.18, etc.

Specific examples of basic dyes (cationic dyes) include red 213, red 214, BasicBlue3, BasicBlue6, BasicBlue7, BasicBlue9, BasicBlue26, BasicBlue41, BasicBrown1, and BasicBrown4, BasicBrown16, BasicBrown17, BasicOrange1, BasicOrange2, BasicOrange31, BasicRed1, BasicRed2, BasicRed22, BasicRed46, BasicRed51, BasicRed76, BasicRed 118, BasicViolet10, BasicViolet11:1, BasicViolet16, BasicYellow11, BasicYellow28, BasicYellow57, and BasicYellow87.

Specific examples of disperse dyes include, for example, Disperse Black9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse. Violet4, Disperse Violet15, etc. are listed.

Examples of direct dyes include 1-amino-4-methylanthraquinone, 1,4-diaminoanthraquinone, salts thereof, and “Ministerial Ordinance for Defining Tar Dyes that can be Used in Pharmaceuticals, etc.” (Showa 41 Notification, Ministry of Health and Welfare) Alternatively, a direct dye or the like defined by the above) may be used.

Of the specific examples of the above direct dye, only one kind may be used, or two or more kinds may be used in combination.
[PH of hair dye composition]
The pH of the hair dye composition according to one aspect of the present disclosure is preferably 2 or more and 8 or less, more preferably 3 or more and 6 or less. When the pH of the hair dye composition is 2 or more, the hair dyeing power of the hair dye composition can be further improved. When the pH is 8 or less, the hair dyeing power of the hair dye composition can be improved, and the hair dye color stability after long-term storage can be further improved. The pH of the hair dye composition is the pH at 25° C. when the hair dye composition is dissolved in water at a concentration of 10% by mass.

[Use Mode of Hair Dye Composition]
The dosage form of the hair dye composition according to one embodiment of the present disclosure is not particularly limited. Examples of the dosage form at 25° C. include cream, liquid such as aqueous solution and emulsion, gel, foam and the like.
Further, the use of the hair dye composition according to one aspect of the present disclosure is not particularly limited. For example, applications of the hair dye composition include color treatments and hair manicures. Among these, the hair dye composition can be suitably used as a color treatment for color creams and the like.

Further, the hair dyeing method of one aspect of the present disclosure has a step of applying the hair dye composition of one aspect of the present disclosure to hair. The hair to which the hair dye composition according to one aspect of the present disclosure is applied is not particularly limited. For example, the applied hair includes black hair, hair obtained by appropriately bleaching black hair, and white hair. In particular, by applying the hair dye composition according to one embodiment of the present disclosure to hair obtained by bleaching black hair, the hair can be dyed in a bright purple color. For example, in the hair dye composition according to one aspect of the present disclosure, the bleached hair, that is, black hair, has an L* value of 45 or more and 50 or less and an a* value of 10 in the CIE L*a*b* color space display system. The hair may be bleached until it has a b* value of 27 or more and 32 or less and 15 or less.

[Preparation of hair dye composition]
The hair dye compositions according to Examples 1 to 20 shown in Tables 1 to 3 and the hair dye compositions according to Comparative Examples 1 to 8 shown in Table 4 were prepared as cream-like emulsions according to a conventional method. ..

The numerical value showing the content of each component in Tables 1 to 4 is% by mass. In addition, the hydroxyethylethylenediamine triacetate trisodium solution in Tables 1 to 4 was blended in an appropriate amount in order to adjust the pH of the hair dye composition to 5. The pH of the hair dye composition was measured according to the above method.

The basic red 51, basic red 76, and HC blue 2 in Tables 1 to 4 are compounds represented by the following formulas (13), (14), and (15), respectively.

[Treatment of hair bundles]
A powder bleaching agent ("View Teen Base Up Bleach", manufactured by Hoyu Co., Ltd.) was applied to a human hair black hair bundle manufactured by Beaulux at a ratio of 3 g per 1 g of the hair bundle using a brush. The hair bundle to which the powder bleaching agent was applied was left at 30° C. for 30 minutes and then washed with water. The washed hair bundle was treated twice with shampoo ("Bigen Treatment Shampoo", manufactured by Hoyu Co., Ltd.) and once using a treatment ("Bigen Treatment Rinse", manufactured by Hoyu Co., Ltd.). Then, the treated hair bundle was dried.

Hair bundles obtained by repeating this series of steps twice are called "bleach hair bundles", and hair bundles obtained by repeating three times are called "hybrid hair bundles". The bleached hair bundle corresponds to the above-mentioned “bleached hair”, and its L* value was 48.23, a* value was 11.42, and b* value was 29.31. The L* value of the hybrid hair bundle was 63.26, the a* value was 8.04, and the b* value was 27.80. The hybrid hair bundle is about 17 levels on the JHCA hair coloring level scale. A JHCA hair coloring level scale of about 17 levels means, specifically, an L* value of 60 or more and 65 or less and an a* value of 7 or more and 12 in the CIE L*a*b* color space display system. Hereinafter, the b* value is 25 or more and 30 or less.

[Hair dyeing]
Each hair dye composition was applied to each of the obtained bleached hair bundle and hybridized hair bundle with a brush at a ratio of 1 g to 1 g of the hair bundle, and the mixture was left at 30° C. for 20 minutes. The hair bundle after leaving was subjected to the same shampoo treatment twice and the treatment treatment similar to the above once. The hair bundle after these treatments was dried to obtain a bleached hair bundle after hair dyeing and a bleach hair bundle after hair dyeing.

[Evaluation]
The following evaluations were carried out using the bleached hair bundle after dyeing and the bleached hair bundle after dyed.
(Hue after dyeing hair and after washing hair with shampoo)
For the bleached hair bundle after hair dyeing, a series of shampoo treatments, treatment treatments, and drying treatments similar to the above were repeated seven times. The bleached hair bundle after dyeing and the bleached hair bundle after washing hair were visually observed by a specialized panelist under a standard light source, and each hue was evaluated.

(Degree of hue change)
In addition, the bleached hair bundle after dyeing and the bleached hair bundle after washing hair were visually observed by 10 panelists under a standard light source to determine whether or not the hue change before and after washing was small. "Excellent: 5" when the number of panelists who answered that the hue change was recognized to be small was 8 or more, "Good: 4" when it was 6 to 7 and 4 to 5 If there was, "OK: 3", if there were 2 to 3 people, "somewhat bad: 2", and if there was less than 1 person, "bad: 1" It was

(Good color retention)
Further, the bleached hair bundle after dyeing and the bleached hair bundle after washing hair were visually observed under the standard light source by each of 10 panelists, and it was judged whether or not the color retention was good. Specifically, the panelists judged that the color retention was good based on whether or not there was a small difference in shade of color when comparing the bleached hair bundle after dyeing with the bleached hair bundle after washing.

"Excellent: 5" when the number of panelists who answered that they had good color lasting was 8 or more, "Good: 4" when they were 6 to 7 and 4 to 5 If there was, "OK: 3", if there were 2 to 3 people, "somewhat bad: 2", and if there was less than 1 person, "bad: 1" It was

(Differences in dyeing at the damage level)
Ten panelists visually observed the bleached hair bundle after dyeing and the hybridized hair bundle after dyeing under the standard light source, and when comparing the two, it was judged whether the difference in hue was small or not. ..

"Excellent: 5" when the number of panelists who answered that the difference in hue was found to be small was 8 or more, and "Good: 4" when 4 to 7 were 4 to 5 If it was, the rating was “OK”: 3; if it was 2 to 3 people, it was “Slightly bad: 2”; went.

(Recolorability)
"Promaster EX LT" (1st agent) (manufactured by Hoyu Co., Ltd.) and "Prooxide n(6)" (2nd agent) (manufactured by Hoyu Co., Ltd.) were applied to the bleached hair bundle after dyeing 1:1. The decolorizing agent prepared by mixing in 1. was applied with a brush at a ratio of 3 g to 1 g of the hair bundle, and the applied hair bundle was left at 30° C. for 30 minutes. The hair bundle after standing was subjected to the same shampoo treatment twice as described above, and the same treatment treatment as above once, and then dried.

The obtained hair bundle was visually observed by 10 panelists under a standard light source, and it was judged whether or not the color could be easily removed by the decolorizing agent. Specifically, the panelists found that the obtained hair tresses were discolored compared to those before decolorization, and the color depth of the obtained hair tresses approached that of the original bleach hair tresses before dyeing. Whether or not the color could be taken was judged based on whether or not the color was taken. "Excellent: 5" when the number of panelists who answered that it was recognized that it was easy to get the color was 8 or more, "Good: 4" when it was 6 to 7 and 4 to 5 If there was, "OK: 3", if there were 2 to 3 people, "somewhat bad: 2", and if there was less than 1 person, "bad: 1" It was

(Hair dyeing power)
The bleached hair bundle after hair dyeing was visually observed by 10 panelists under a standard light source to determine whether or not the hair dyeing composition of each example had good hair dyeing power. Specifically, the panelist judged the goodness of the hair dyeing power based on whether or not the bleached hair bundle after hair dyeing was dyed to a desired depth.

"Excellent: 5" when the number of panelists who answered that the hair dyeing power was recognized to be good was 8 or more, and "Good: 4", 4 to 5 when the number was 6 to 7 If it was, the rating was “OK”: 3; if it was 2 to 3 people, it was “Slightly bad: 2”; went.

(Measurement with a colorimeter)
L* value, a* value, and b* value of the bleached hair bundle after dyeing are measured using a spectrocolorimeter (“CM-600d”, manufactured by Konica Minolta) under the standard light source D65. did. Further, using the obtained L* value, a* value, and b* value, the color difference ΔE was calculated based on the CIE2000 color difference formula.

[Discussion]
As shown in Examples 1 to 4 and 7 to 15, a hair dye containing the component (b1) as the component (B) and having a ratio (A)/(b1) of 0.45 or more and 5.5 or less. The composition was excellent in terms of the degree of hue change and the difference in dyeing method at the damage level. In addition, the evaluation of the items of good color retention, recolorability and hair dyeing power was also excellent.

As shown in Examples 5, 6, 16 to 20, a hair dye containing the component (b2) as the component (B) and having a ratio (A)/(b2) of 0.010 or more and 0.55 or less. The composition was excellent in terms of hue change and difference in dyeing method at the damage level. In addition, the evaluation of the items of good color retention, recolorability and hair dyeing power was also excellent.

Further, the hair dye compositions containing the component (b1) as the component (B) according to Examples 1 to 4, 7 to 15 were prepared as the component (B) according to Examples 5, 6, 16 to 20 ( The hair dye composition containing the component b2) tended to be generally superior in the evaluation of the items regarding the degree of hue change and the difference in dyeing method at the damage level.

When the hair dye composition contains the component (b1) as the component (B), the ratio (A)/(b1) of Examples 1 to 4, 7 to 13 and 15 is 0.50 or more and 3. The hair dye composition within the range of 0 or less has a damage level higher than that of the hair dye composition according to Example 14 in which (A)/(b1) is outside the range of 0.50 or more and 3.0 or less. The items with different dyeing methods were evaluated highly.

On the other hand, the hair dye compositions not containing the component (A) according to Comparative Examples 1 and 2 showed a large change in the hue of the hair. In addition, the hair dye composition was sometimes inferior to each Example in terms of evaluation of color retention or recolorability.

The hair dye compositions not containing the component (B) according to Comparative Examples 3 and 4 were relatively suppressed in the change in the hue of the hair, but had a large difference in how they were dyed at the damage level. In addition, the hair dye composition was also inferior to each example in the evaluation of color retention.

The hair dye compositions according to Comparative Examples 5 and 6 in which (A)/(b1) is out of the range of 0.45 or more and 5.5 or less have a large change in hue of hair, or dyeing at a damage level. However, the desired performance was not satisfied.

The hair dye compositions according to Comparative Examples 7 and 8 in which (A)/(b2) is out of the range of 0.010 or more and 0.55 or less, although the hue change of the hair is relatively suppressed, the damage level There was a big difference in the dyeing method. In addition, the hair dye composition was sometimes inferior to each example in the evaluation of color retention.

[Reference formulation example of hair dye composition]
The hair dye composition of Formulation Example 1 shown in Table 5 below was prepared as a creamy emulsion according to a conventional method, and evaluated in the same manner as in the above Examples. As a result, it was confirmed that also in the hair dye composition of Formulation Example 1, as in each of the above Examples, the evaluation of the items regarding the degree of hue change and the difference in dyeing method at the damage level was excellent.

Claims (6)

1. A triaminotriphenylmethane compound represented by the following formula (1) as the component (A):
   

   

   (In the formula (1), R1, R2, R3, R4, R5 and R6 are independently of each other a hydrogen atom, a C1-C4 alkyl group, a C1-C4 mono-hydroxyalkyl group, a C1-C4 poly-hydroxyalkyl group. Group, a phenyl group, or a benzyl group, R7, R8, and R9 independently of one another are a hydrogen atom, a halogen atom, or a C1-C4 alkyl group, and X- is a halide ion, a hydrogensulfate ion, It is a methosulfate ion, a benzoate ion, or an acetate ion.)
   As the component (B), at least one component selected from basic blue 75, basic blue 124, and HC blue 15 (b1) component, or one selected from basic blue 99 and HC blue 16 A certain (b2) component,
   A hair dye composition containing
   When the hair dye composition contains the component (b1) as the component (B), the component (A) in the hair dye composition with respect to the content of the component (b1) in the hair dye composition. The mass ratio (A)/(b1) of the content of 0.45 or more and 5.5 or less,
   When the hair dye composition contains the component (b2) as the component (B), the component (A) in the hair dye composition with respect to the content of the component (b2) in the hair dye composition. The hair dye composition in which the mass ratio (A)/(b2) of the content of the above is 0.010 or more and 0.55 or less.
2. The hair dye composition according to claim 1, wherein the component (A) is basic purple 1, basic purple 2, basic purple 3, basic purple 4, basic purple 14, or basic red 9. ..
3. The hair dye composition according to claim 1 or 2, which contains the component (b1) as the component (B).
4. The mass ratio (A)/(b1) of the content of the component (A) in the hair dye composition to the content of the component (b1) in the hair dye composition is 0.50 or more and 3.0. The hair dye composition according to claim 3, which is:
5. When dyeing black hair bleached with the hair dye composition, the color difference ΔE between the hair before dyeing and the hair after dyeing in the CIE L*a*b* color space display system is 20 or more. The hair dye composition according to any one of claims 1 to 4, which is 35 or less.
6. A hair dyeing method comprising a step of applying the hair dye composition according to any one of claims 1 to 5 to hair.