CN117100624A

CN117100624A - Hair dye composition

Info

Publication number: CN117100624A
Application number: CN202310440160.7A
Authority: CN
Inventors: 园田朋也; 水野纱也; 守口香里
Original assignee: Hoyu Co Ltd
Current assignee: Hoyu Co Ltd
Priority date: 2022-05-23
Filing date: 2023-04-23
Publication date: 2023-11-24
Also published as: JP2023172174A

Abstract

The present invention provides a novel hair dye composition which can achieve both excellent hair dyeing ability and color fading inhibition. The hair dye composition is characterized by comprising A and B. A: a compound represented by the following formula (1), B: HC dyesIn the formula (1), R is amino or ethylamino.

Description

Hair dye composition

Technical Field

The present invention relates to a hair dye composition. More particularly, the present invention relates to a hair dye composition using a 2-chloro-4-nitrophenol derivative.

Background

Conventionally, it is known that 2-amino-6-chloro-4-nitrophenol, which is one of 2-chloro-4-nitrophenol derivatives, can be used for dyeing hair (patent document 1).

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2014-234381.

Disclosure of Invention

Semi-permanent dyeing with a dye (dye hair) or the like is more convenient than permanent dyeing with a dye (dye Mao) or the like, and thus market demand has been rapidly expanding in recent years. The semi-permanent dyeing is a dyeing method using a direct dye, as which simple dyeing can be achieved by using a basic dye, HC dye, or the like. Among these direct dyes, basic dyes have an excellent dyeing ability in a short period of time, and on the other hand, have a problem that it is difficult to satisfactorily suppress discoloration particularly in a cleaning agent because they remain on the surface of hair. On the other hand, HC dyes exhibit fading resistance by entering into the hair, and on the other hand, since the time required for dyeing is longer than that of basic dyes, there is a problem that it is difficult to obtain sufficient dyeing ability in a short time. Therefore, it is considered that if the two are combined, the weak points of each other can be covered to obtain a good result as a whole, but in practice, the basic dye and the HC dye are different in dyeing mechanism, so it is difficult to adjust the optimum dyeing conditions for both, and in the present case, it is impossible to use only the basic dye and the HC dye together to improve the dyeing property as a whole.

On the other hand, 2-amino-6-chloro-4-nitrophenol is a yellow to orange component which is difficult to use alone for hair. Further, as described in patent document 1, there is a problem that the dyeing performance of 2-amino-6-chloro-4-nitrophenol depends largely on pH. That is, although the dyeing property is good at a pH as low as about 6.0, the precipitation of dye is likely to occur, and it is required to have a pH of 6.5 or more for suppressing the precipitation, it is also described that the dye is not optimal in this pH range from the viewpoint of the dyeing property (patent document 1[0003 ]). Thus, 2-amino-6-chloro-4-nitrophenol is hardly available in the market due to its difficulty in use.

The present invention has been made in view of the above-described circumstances, and relates to a novel hair dye composition which can achieve both excellent hair dyeing ability and color fading inhibition.

The present inventors have studied a hair dye composition which uses an HC dye as a base as a dye component and can compensate for the weak point of the HC dye. As a result, it has been found that the use of a 2-chloro-4-nitrophenol derivative in combination with an HC dye can compensate for the pH dependency of the 2-chloro-4-nitrophenol derivative and the use of a 2-chloro-4-nitrophenol derivative can compensate for the weakness of the dyeing ability of the HC dye, and as a result, it has been found that the use of these 2 components can provide a synergistic excellent dyeing ability and fading-inhibiting effect, and the present invention has been completed.

The present invention includes the following.

[1] A hair dye composition comprising a and B as follows.

A: a compound represented by the following formula (1)

[ in formula (1), R is amino or ethylamino. A kind of electronic device

B: HC dyes

[2] The hair dye composition according to the above [1], wherein B is at least 1 kind selected from HC red 13, HC yellow 4 and HC blue 16.

[3]According to [1] above]Or [2]]The hair dye composition comprises the component A and the component B, wherein the content ratio of the component A to 100 mass% of the whole hair dye composition is W _A When the content of B in the hair dye composition is WB mass%, the following formula is satisfied.

W _A ＜W _B

[4] The hair dye composition according to any one of [1] to [3], further comprising C.

C: basic dye

[5] The hair dye composition according to the above [4], wherein the above C is at least 1 selected from the group consisting of basic orange 1, basic orange 2, basic orange 31, basic blue 3, basic blue 6, basic blue 7, basic blue 9, basic blue 26, basic blue 41, basic blue 47, basic blue 75, basic blue 77, basic blue 99, and basic blue 124.

[6]According to [4] above]Or [5]]The hair dye composition comprises the component A and the component B, wherein the content ratio of the component A to 100 mass% of the whole hair dye composition is W _A The content of B in 100% by mass of the whole hair dye composition is W _B The content of C in the total 100% by mass of the hair dye composition is W _C In the case of mass%, the following formula is satisfied.

W _C ＜W _A ＜W _B

The hair dye composition of the present invention can achieve both excellent hair dyeing ability and color fading inhibition.

Drawings

Fig. 1 is a half-sectional view showing an example of a packaging material for storing the present hair dye composition.

Fig. 2 is a half-sectional view showing an enlarged nozzle portion of the packaging material shown in fig. 1.

Fig. 3 is a half-sectional view showing an example of a cover body covering the nozzle portion of the packaging material shown in fig. 1.

Symbol description

1, a step of; packaging material (tube type packaging material)

2; main body part

3, a step of; cover fixing part

4, a step of; nozzle part

5, a step of; cover body

6, preparing a base material; screw groove

Detailed Description

The present invention will be described in detail below.

Unless explicitly stated otherwise, "%" means "% by mass", parts "means" parts by mass ", and expressions of" X to Y "mean" X or more and Y or less ".

In addition, the names of some of the compounds are displayed based on the components of the Japanese cosmetic industry Congress, or INCI (INCI: international Nomenclat ure of Cosmetic Ingredient: international nomenclature of cosmetic raw materials) is used.

In addition, the names of some of the compounds may be abbreviated as "POE" and "POP" for the polyoxyalkylene chain. And, numerals in parentheses following these abbreviations represent additional mole numbers, respectively. In addition, (meth) acrylic acid means acrylic acid or methacrylic acid.

The hair dye composition of the present invention (hereinafter, also simply referred to as "present composition") is characterized by comprising an a component and a B component shown below.

Component A: a compound represented by the following formula (1)

[ in formula (1), R is amino or ethylamino. A kind of electronic device

And the component B comprises the following components: HC dyes

In the present invention, the component a is not contained in the HC dye.

[1] Component A

The component A is 2-chloro-4-nitrophenol derivative. The component A is represented by the following formula (1), wherein R is amino or ethylamino in the formula (1).

Namely, the component A is A represented by the following formula (2) ₁ Component (2-amino-6-chloro-4-nitrophenol) and A represented by the following formula (3) ₂ A component comprising at least one of the components (2-chloro-6-ethylamino-4-nitrophenol).

By containing both the component a and the component B, it is possible to achieve both the ability to dye hair and the ability to suppress discoloration as described above. Further, by containing the component a, an effect of improving color saturation and an effect of suppressing color tone change can be exerted.

The content of the component A is not limited, and the ratio of A (W _A Mass%) is preferably 0.001 mass% or more. By setting the proportion of the component a to 0.001 mass% or more, the effect of combining the component a and the component B can be more reliably obtained. The proportion is more preferably 0.005% by mass or more, still more preferably 0.01% by mass or more, particularly preferably 0.05% by mass or more.

On the other hand, the ratio of A (W _A Mass%) is preferably 5 mass% or less. By setting the proportion of the component a to 5 mass% or less, the effect of combining the component a and the component B can be more reliably obtained. The proportion is more preferably 3% by mass or less, still more preferably 1% by mass or less, and particularly preferably 0.5% by mass or less.

These upper and lower limit values may be arbitrarily combined. For example, the content may be 0.001 to 5% by mass, 0.005 to 3% by mass, 0.01 to 1% by mass, or 0.05 to 0.5% by mass.

[2] Component B

The component B is HC dye. HC dyes are direct dyes that can directly dye hair without chemical reactions such as oxidative polymerization, with the dye component itself having a color.

In the present specification, a dye having a dye name obtained by combining "HC", "color name" and "number" in this order is referred to as an HC dye. That is, for example, 2' - [ (4-amino-3-nitrophenyl) imino ] diethanol hydrochloride (CAS RN: 94158-13-1) has a dye name obtained by combining "HC" which is HC Red 13 (HC Red 13 ), and "color name (Red in this case)" and "number (13 in this case)", and is therefore included in the HC dye in this specification.

The component B can be contained simultaneously with the component A, thereby achieving both dyeing ability and discoloration inhibition. Further, by containing the component B, the effect of improving the color saturation can be exerted.

Examples of the HC dye of the B component include HC Red dye (HC Red), HC Orange dye (HC Orange), HC Yellow dye (HC Yellow), HC Blue dye (HC Blue), and HC Violet dye (HC Violet). Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among the above-mentioned HC dyes, examples of the HC red dye include HC red 1, HC red 3, HC red 7, HC red 10, HC red 11, HC red 13, HC red 14, HC red 17, HC red 18, HC red 19, HC red 20, HC red 21, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, HC red 13 and HC red 3 are preferable, and HC red 13 is more preferable.

Among the above-mentioned HC dyes, examples of HC orange dyes include HC orange 1, HC orange 2, HC orange 3, HC orange 6, HC orange 7, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among the above-mentioned HC dyes, examples of the HC yellow dye include HC yellow 2, HC yellow 4, HC yellow 5, HC yellow 7, HC yellow 9, HC yellow 11, HC yellow 13, HC yellow 16, HC yellow 18, HC yellow 6, HC yellow 10, HC yellow 12, HC yellow 14, HC yellow 15, HC yellow 19, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, HC yellow 4 and HC yellow 2 are preferable, and HC yellow 4 is more preferable in the present hair dye composition.

Among the above-mentioned HC dyes, examples of the HC blue dye include HC blue 2, HC blue 5, HC blue 6, HC blue 8, HC blue 9, HC blue 10, HC blue 11, HC blue 12, HC blue 13, HC blue 14, HC blue 15, HC blue 16, HC blue 18, HC blue 19, HC blue 20, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, HC blue 2, HC blue 16, HC blue 12 and HC blue 15 are preferable, HC blue 2 and/or HC blue 16 are more preferable, and HC blue 16 is particularly preferable.

Among the above-mentioned HC dyes, examples of HC violet dyes include HC violet 1, HC violet 2, HC violet 3, and HC violet 4.

The dye composition may contain only 1 kind of HC dye as the B component, or may contain 2 or more kinds. When 2 or more kinds of HC dyes are used in combination, HC dyes of the same color system (e.g., 2 or more kinds of HC red dyes) may be used in combination, or HC dyes of different colors (e.g., HC red dyes and HC blue dyes) may be used in combination. Among these dyes, the one containing 2 or more HC dyes is preferable, and the one containing 3 or more HC dyes is more preferable, regardless of the difference in color system. In addition, it is particularly preferable to contain 2 or more kinds of HC dyes different in color system, and it is particularly preferable to contain 3 or more kinds of HC dyes different in color system.

When the HC dye contains a plurality of HC dyes having different color systems, the HC dye may be 2 or more kinds selected from HC red dye, HC orange dye, HC yellow dye, HC blue dye and HC violet dye, and preferably 2 or more kinds selected from 3 kinds of HC dye, i.e., HC red dye, HC yellow dye and HC blue dye. For example, when HC red 13 is selected as the HC red dye, HC yellow 4 is selected as the HC yellow dye, and HC blue 16 is selected as the HC blue dye, the B component may be at least 1 selected from HC red 13, HC yellow 4, and HC blue 16.

As described above, as the case of containing at least 1B component selected from the group consisting of 3 HC dyes, i.e., HC red dye, HC yellow dye, and HC blue dye, there may be exemplified a combination of 2 kinds of HC red dye and HC yellow dye, a combination of 2 kinds of HC yellow dye and HC blue dye, a combination of 2 kinds of HC red dye and HC blue dye, a combination of 3 kinds of HC red dye, HC yellow dye, and HC blue dye, and the like.

In the present hair dye composition, among the dyes, 3 kinds of HC red dye, HC yellow dye and HC blue dye may be used in combination as a more preferable mode. In this case, more preferable are HC red 13 as the HC red dye, HC yellow 4 as the HC yellow dye, and HC blue 16 as the HC blue dye. As described above, when HC red 13, HC yellow 4, and HC blue 16 are used as the B component in combination, the poor effect due to the pH dependency of the a component can be compensated for, and the hair dyeing ability of the B component can be compensated for by the a component, and as a result, when these a component and B component are used in combination, the synergistic excellent hair dyeing ability and the fading inhibition effect can be obtained.

The content of the component B is not limited, and the ratio of B (W _B Mass%) is preferably 0.01 mass% or more. By setting the proportion of the component B to 0.01 mass% or more, the effect of combining the component a and the component B can be more reliably obtained. The ratio is more preferableThe content is 0.05 mass% or more, more preferably 0.1 mass% or more, and particularly preferably 0.5 mass% or more. On the other hand, the ratio of B (W _B Mass%) is preferably 20 mass% or less. By setting the proportion of the component B to 20 mass% or less, the effect of combining the component a and the component B can be more reliably obtained. The proportion is more preferably 15% by mass or less, still more preferably 10% by mass or less, and particularly preferably 5% by mass or less.

These upper and lower limit values may be arbitrarily combined. For example, the content may be 0.01 to 20% by mass, 0.05 to 15% by mass, 0.1 to 10% by mass, or 0.5 to 5% by mass.

The content ratio of the A component and the B component is not limited, and is preferably such that W _A ＜W _B . I.e. preferably contains more B component than a component. By satisfying W _A ＜W _B The effect of combining the component A and the component B can be obtained more reliably.

In addition, W _A (mass%) and W _B Preferably satisfies 1 < (W) _A +W _B )/W _A And is less than or equal to 25. If the ratio is 25 or less, the effect of combining the component A and the component B can be more reliably obtained. The ratio of the amount of [ (W) _A +W _B )/W _A ]Preferably 1.2 or more, more preferably 2.0 or more. If it is 2.0 or more, the fading suppressing effect, the color change suppressing effect and the color saturation can be further improved. The amount ratio is more preferably 3.5 or more, and still more preferably 4.5 or more. If it is 4.5 or more, the color saturation can be further improved. On the other hand, the amount ratio is preferably 20 or less. If the amount is 20 or less, the dyeing ability and the fading inhibition effect can be further improved. The ratio may be 15 or less.

These upper and lower limit values may be arbitrarily combined. May be 1.2 to 20, may be 2.0 to 20, may be 3.5 to 15, and may be 4.5 to 15.

[3] Component C

The hair dye composition may further comprise a C component as a dye component in addition to the A component and the B component. The component C is basic dye. Basic dyes are dye components that form positive cations by dissolution in water.

In the present specification, a dye having a dye name obtained by combining "basic", "color name" and "number" in this order is referred to as a basic dye. That is, for example, 2- [ (4-aminophenyl) azo ] -1, 3-dimethyl-1H-imidazole chloride (CAS RN: 97404-02-9) contains Basic dyes in this specification because of having a dye name that is a combination of "Basic" and "color name (Orange in this case) and" number (31 in this case) of Basic Orange 31.

By containing the component C, the dyeing ability and the effect of suppressing discoloration obtained by both the component A and the component B are further improved. Further, by containing the component C, an effect of improving color saturation and an effect of suppressing color tone change can be exerted.

Examples of the Basic dye of the component C include Basic Red dye (Basic Red), basic Orange dye (Basic Orange), basic Yellow dye (Basic Yellow), basic Green dye (Basic Green), basic Blue dye (Basic Blue), basic Violet dye (Basic Violet), basic tea dye (Basic Brown), and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among the basic dyes, basic red 1, basic red 2, basic red 22, basic red 46, basic red 51, basic red 76, basic red 118, and the like are exemplified as basic red dyes. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, basic red 51 is preferred in the present hair dye composition.

Among the basic dyes, basic orange 1, basic orange 2, basic orange 31, and the like are exemplified as basic orange dyes. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, basic orange 31 is preferred in the present hair dye composition.

Among the basic dyes, basic yellow dyes include basic yellow 11, basic yellow 28, basic yellow 40, basic yellow 57, basic yellow 87, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, basic yellow 87 is preferred in the present hair dye composition.

Among the basic dyes, basic green 1, basic green 4, and the like are exemplified as basic green dyes. These dyes may be used in an amount of 1 or 2 or more.

Among the basic dyes, basic blue 3, basic blue 6, basic blue 7, basic blue 9, basic blue 26, basic blue 41, basic blue 47, basic blue 75, basic blue 77, basic blue 99, basic blue 124, and the like are exemplified. These dyes may be used in an amount of 1 or 2 or more. Among these dyes, basic blue 75, basic blue 99, and basic blue 124 are preferable, and basic blue 75 is more preferable.

Among the basic dyes, basic violet dyes include basic violet 1, basic violet 2, basic violet 3, basic violet 4, basic violet 14, basic violet 16, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, basic violet 2 is preferred in the present hair dye composition.

Among the above basic dyes, basic tea dyes include basic tea 4, basic tea 16, basic tea 17, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these dyes, basic tea 16 and basic tea 17 are preferable in the present hair dye composition.

The present hair dye composition may comprise several basic dyes as component C. When 2 or more basic dyes are used in combination, basic dyes of the same color system (e.g., 2 or more basic red dyes) may be used in combination, and basic dyes of different colors (e.g., basic red dyes and basic blue dyes) may be used in combination. Among these dyes, the one containing 3 or less basic dyes is preferable, the one containing 2 or less basic dyes is more preferable, and the one containing only 1 basic dye is even more preferable, regardless of the difference in color system.

When a plurality of basic dyes are contained, as described above, the basic dyes may be contained as basic dyes of the same color system, but it is preferable that the basic dyes be contained as 2 or more basic dyes of different color systems. When a plurality of basic dyes having different color systems are included, the basic dye may be 2 or more kinds selected from basic red dyes, basic orange dyes, basic yellow dyes, basic green dyes, basic blue dyes, basic violet dyes, and basic tea dyes.

Among the above dyes, at least 1 kind of 3 basic dyes selected from basic orange dyes, basic blue dyes and basic tea dyes is preferably contained. In this case, for example, in the case where basic orange 31 is selected as a basic orange dye, basic blue 75 is selected as a basic blue dye, basic tea 16 is selected as a basic tea dye, and basic tea 17 is selected as a basic tea dye, the C component may be at least 1 selected from basic orange 31, basic blue 75, basic tea 16, and basic tea 17. It is further preferable to contain at least 1 of 2 basic dyes selected from basic orange dyes and basic blue dyes. In this case, for example, basic orange 31 is selected as a basic orange dye, and basic blue 75 is selected as a basic blue dye, and the C component may be basic orange 31 and/or basic blue 75.

Further, in the present hair dye composition, the amount of the basic dye blended is preferably small from the viewpoint of suppressing involuntary skin staining caused by adhesion of the hair dye composition. In this case, the component C may be any 1 selected from the group consisting of basic red 51, basic orange 31, basic yellow 87, basic blue 75, basic blue 99, basic blue 124, basic violet 2, basic tea 16, and basic tea 17. Of these dyes, at least 1 of basic orange 31 and basic blue 75 is preferably contained, and further, only basic orange 31 is preferably contained as a basic dye, or only basic blue 75 is contained as a basic dye, and particularly preferably only basic orange 31 is contained as a basic dye. In the present hair dye composition, the use of basic orange 31 or basic blue 75 can further enhance the hair dyeing ability as compared with the use of other basic dyes. Further, from the viewpoint of suppressing involuntary skin staining caused by the adhesion of the hair dye composition, it is preferable to use basic orange 31 as compared with basic blue 75.

In the above, in the case of using basic orange 31 and other basic dyes in combination, the ratio of basic orange 31 to other basic dyes is preferably 1:0.1 to 10. In the case of using basic blue 75 and other basic dyes in combination, the ratio of basic blue 75 to other basic dyes is preferably 1:0.1 to 10.

The content of component C is not limitedWhen the total amount of the hair dye composition is 100% by mass, the ratio of C (W _C Mass%) is preferably 0.001 mass% or more. By setting the proportion of the component C to 0.001 mass% or more, the effect associated with the content of the component C can be more reliably obtained. The proportion is more preferably 0.005% by mass or more, and still more preferably 0.01% by mass or more.

On the other hand, the ratio of C (W _C Mass%) is preferably 5 mass% or less. By setting the proportion of the component C to 5% by mass or less, it is possible to suppress involuntary skin staining due to adhesion of the hair dye composition. The proportion is more preferably 4% by mass or less, still more preferably 3% by mass or less, and particularly preferably 2% by mass or less.

These upper and lower limit values may be arbitrarily combined. For example, the content may be 0.001 to 5% by mass, 0.005 to 4% by mass, 0.01 to 3% by mass, or 0.01 to 2% by mass.

The content ratio of the component A, the component B and the component C is not limited, and preferably satisfies W _C ＜W _A ＜W _B . That is, among the component A, the component B and the component C, the ratio of the component C is preferably smallest, the ratio of the component A is second smallest, and the ratio of the component B is largest. By satisfying W _C ＜W _A ＜W _B The effect of the combination of the component A and the component B can be more reliably obtained, and the effects of improving the dyeing ability and the discoloration inhibition by the combination of the component A and the component B can be further improved while suppressing the involuntary skin dyeing by the adhesion of the hair dye composition.

In addition, W _A (mass%) W _B (mass%) and W _C Preferably satisfies 1 < (W) _A +W _B +W _C )/W _C And is less than or equal to 200. If the ratio is 200 or less, the effect of combining the A component and the B component can be more reliably obtained, and the A component, the B component and the C component can be more reliably improved. The ratio of the amount of [ (W) _A +W _B +W _C )/W _C ]Preferably 2 or more, more preferably 5 or more, further preferably 12 or more, and particularly preferably 20 or more. These areIn the preferred range, the effects of suppressing skin contamination and suppressing color saturation and color tone change can be further improved. On the other hand, the ratio may be 150 or less, and further may be 100 or less. In these preferred ranges, the dyeing ability can be further improved.

These upper and lower limit values may be arbitrarily combined. For example, the content may be 2 to 200, 5 to 200, 12 to 150, or 20 to 100.

The hair dye composition may contain only the component a, the component B and the component C as the dye components, but may contain other dye components than these within a range that does not hinder the effects of the present invention. Examples of the other dye component include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, N' -bis (2-hydroxyethyl) -2-nitro-p-phenylenediamine, 2-amino-3-nitrophenol, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, 4-amino-3-nitrophenol, hydroxyethyl-2-nitro-p-toluidine, 3-nitro-p-hydroxyethyl aminophenol, 4-hydroxypropyl amino-3-nitrophenol, 3-methylamino-4-nitrophenoxyethanol, 1-amino-4-methylanthraquinone, 1, 4-diaminoanthraquinone, 2-nitro-5-glyceryl methylaniline, picric acid, and salts thereof. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. In addition, various known acid dyes, various disperse dyes, and the like can be mentioned. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

In the case of using other dye components, the content is not limited, and the content of the other dye components may be 0.01 to 10 parts by mass based on 100 parts by mass of the total of the component a, the component B and the component C.

[4] Solubilizer

In addition to the component A, the component B and the component C, a solubilizing agent may be added as the component D to the hair dye composition.

The solubilizing agent is an ingredient that aids in the dissolution of the ingredients contained in the present hair dye composition. Examples of the solubilizer include water and alcohols. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. From the viewpoint of exhibiting excellent solubility, water is preferably used. Further, water and alcohols are more preferably used in combination.

Among the above, examples of the alcohols include 1-membered alcohols (1-membered aliphatic alcohols, 1-membered aromatic alcohols, and the like), polyols, and ether alcohols. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

The 1-membered aliphatic alcohol in the 1-membered alcohol is preferably a C5 or less alcohol, and examples thereof include ethanol, n-propanol, and isopropanol. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the 1-membered aromatic alcohol in the 1-membered alcohol include benzyl alcohol, 2-phenylethyl alcohol, cinnamyl alcohol, phenylpropanol, 1-phenoxy-2-propanol, benzene glycol, α -methylbenzyl alcohol, dimethylbenzyl methanol, benzyloxyethanol, phenoxyethanol, phenoxyisopropanol, and p-anisyl alcohol. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Further, as the ether alcohol which is a 1-membered alcohol and has an ether bond, ether alcohols having a total of 3 or more hydroxyl groups and ether bonds are preferable, and specific examples thereof include ethoxydiglycol (diethylene glycol monoethyl ether), methoxydiglycol (diethylene glycol monomethyl ether), diethylene glycol monobutyl ether, and the like.

Among the above, the 1-membered alcohol is preferably an ether alcohol, more preferably an ether alcohol having 3 or more hydroxyl groups and ether bonds in total, still more preferably ethoxydiglycol and/or methoxydiglycol, and particularly preferably ethoxydiglycol.

The number of the polyol is not limited, and may be 6 or more, but is preferably 2 to 5 from the viewpoint of improving the solubility or dispersibility in the dye component. The number of carbon atoms of the polyhydric alcohol is not limited, and in the case of a hydrocarbon group, the number of carbon atoms may be 6 or more, and from the viewpoint of improving the solubility or dispersibility in the dye component, the number of carbon atoms is preferably 2 to 5. Specifically, there may be mentioned alkane diols such as ethylene glycol, propylene glycol, butylene glycol, and pentylene glycol; oxydialkanols such as oxydiethanol and oxydipropanol; ethylene glycol such as ethylene glycol; propane diols such as propane-1, 2-diol and trimethylene diol; butane diols such as 1, 2-butanediol, 1, 3-butanediol, and 1, 4-butanediol; pentane diols such as isopentyl diol, 1, 5-pentanediol, and 1, 2-pentanediol; and alkanetriols such as glycerin, butanetriol (1, 2, 3-butanetriol, 1,2, 4-butanetriol, etc.), pentanetriol (1, 2, 3-pentanetriol, 1,2, 5-pentanetriol, 2,3, 4-pentanetriol, etc.), etc. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Further, as the ether alcohol which is a polyhydric alcohol and has an ether bond, there is exemplified a polyalkylene glycol. As the polyalkylene glycol, polyethylene glycol is exemplified. The average molecular weight of polyethylene glycol is not limited, and is usually 100 to 5000, preferably 100 to 1000, more preferably 100 to 800.

Among these dyes, glycerol, 1, 3-butanediol, propylene glycol, and polyethylene glycol are preferable from the viewpoint of improving the solubility or dispersibility of the dye component, and glycerol and polyethylene glycol are more preferable, and glycerol is most preferable. By using these, an effect of suppressing precipitation of a dye component, an effect of improving dyeing ability, and an effect of suppressing discoloration can be obtained. In particular, the component A and the component B are excellent in the effect of improving the solubility, and in particular, the component A is excellent in the effect of improving the solubility. Further, the smoothness of the present dye composition (smoothness of the agent) can be improved. Thus, the ease of application of the present hair dye composition to hair can be improved. Namely, the coatability can be improved. In addition, precipitation of the component A and the component B during long-term storage can be suppressed. Furthermore, the uniformity of the present hair dye composition can be improved. Namely, the uniformity (leveling property) of the dyed color can be improved. The effects of these components can be effectively exhibited in the packaging materials shown in fig. 1 to 3.

In the case where the alcohol is contained as the component D, the amount of the alcohol contained in the present hair dye composition is not limited, and may be 25% by mass or less, for example, in the case where the total amount of the present hair dye composition is 100% by mass, and is preferably 20% by mass or less, more preferably 15% by mass or less, and particularly preferably 10% by mass or less, from the viewpoints of the releasability from a packaging material (container) and suppression of sagging from hair after application. On the other hand, the amount may be 0.01 mass% or more, but from the viewpoint of solubility of the dye components (component a, component B, and component C), it is preferably 1 mass% or more, more preferably 2 mass% or more, and particularly preferably 3 mass% or more.

In the case where water is contained as the component D, the amount of water contained in the present hair dye composition is not limited, and may be 40% by mass or more, for example, when the total amount of the present hair dye composition is 100% by mass, but is preferably 55% by mass or more, more preferably 70% by mass or more, and particularly preferably 80% by mass or more, from the viewpoint of the solubility of the dye components (component a, component B, and component C). On the other hand, the amount may be 99 mass% or less, preferably 96 mass% or less, and more preferably 92 mass% or less.

When the alcohol is contained as the component D, the content of the alcohol is not limited, but is preferably 50 parts by mass or more, more preferably 100 parts by mass or more, still more preferably 150 parts by mass or more, and particularly preferably 200 parts by mass or more, based on 100 parts by mass of the total of the component a, the component B and the component C, from the viewpoint of the above-mentioned action. On the other hand, the content is usually 5000 parts by mass or less, preferably 3000 parts by mass or less, more preferably 2500 parts by mass or less, and still more preferably 2000 parts by mass or less. These upper and lower limit values may be arbitrarily combined. For example, 50 to 5000 parts by mass, 100 to 3000 parts by mass, 150 to 2500 parts by mass, and 200 to 2000 parts by mass. In these preferable ranges, the solubility or dispersibility of the dye component can be further improved, and as a result, both excellent dyeing ability and discoloration inhibition can be facilitated.

[5] pH of hair dye composition

The pH of the present hair dye composition is not limited, and for example, the lower limit may be 4.5. If the pH of the hair dye composition is 4.5 or more, the excellent hair dyeing ability and the effect of suppressing discoloration by the combination of the component A and the component B can be reliably obtained. The pH is more preferably 5.5 or more. By setting the pH of the hair dye composition to 5.5 or more, the effect of improving color saturation and the effect of suppressing color tone change can be exerted. The pH is more preferably 5.7 or more, and still more preferably 6.2 or more.

On the other hand, the upper limit of the pH of the present hair dye composition may be, for example, 10.0. When the pH of the hair dye composition is 10.0 or less, the excellent hair dyeing ability and the effect of suppressing discoloration by the combination of the component A and the component B can be reliably obtained. The pH is more preferably 8.8 or less. By setting the pH of the hair dye composition to 8.8 or less, the hair dyeing ability can be further improved as compared with the case where the pH exceeds 8.8. In addition, the color saturation can be improved. The pH is more preferably 8.5 or less, and still more preferably 8.2 or less.

These upper and lower limit values may be arbitrarily combined. For example, the pH of the present hair dye composition may be from 4.5 to 10.0, preferably from 5.5 to 8.8, more preferably from 5.7 to 8.5, and even more preferably from 6.2 to 8.2.

The pH of the hair dye composition was 25 ℃. The pH is usually measured by diluting the stock solution to a dilution of 10 mass%, and when a certain use condition exists, the pH is set to the pH in the use condition. For example, when diluted with a predetermined amount of water, the pH in a diluted state diluted with the predetermined amount of water is used. When the first liquid and the second liquid are mixed to obtain the hair dye composition, the pH in the mixed state after the mixing is referred to as pH.

[6] Other ingredients

The hair dye composition may contain other components than the above-mentioned dye components as required. Examples of the other components include oily components, water-soluble polymers, surfactants, pH adjusters, preservatives, antioxidants, stabilizers, polypeptides, amino acids, and plant extracts. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

(1) Oily component

Examples of the oily component include higher alcohols, hydrocarbons, oils and fats, waxes, higher fatty acids, esters, silicones, fluorooils, and alkyl glyceryl ethers. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. The oily component may be blended for the purpose of imparting a moist feel to hair, for example.

The higher alcohol may be an alcohol having a carbon chain having 6 or more carbon atoms. For example, higher alcohols having 8 to 40 carbon atoms are included. The skeleton may be saturated or unsaturated, and may be linear or branched. Specifically, cetyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol (cetyl alcohol), stearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-hexyldecyl alcohol, isostearyl alcohol, 2-octyldodecyl alcohol, decylmyristyl alcohol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, lanolin alcohol, phytosterol, cholesterol, and the like can be mentioned. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of hydrocarbons include flowing paraffin, flowing isoparaffin, paraffin (paraffin wax), olefin oligomer, polyisobutylene, hydrogenated polyisobutylene, mineral oil, synthetic squalane, squalene, squalane (hydrogenated squalene), polybutene, polyethylene (polyethylene wax), microcrystalline wax, vaseline, ceresin, serotonin, limonene, terpineol, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the fat include vegetable oils (vegetable fats) and animal oils (animal fats). Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Examples of the vegetable oil include macadamia nut seed oil, meadowfoam oil, jojoba seed oil, rice germ oil, sunflower seed oil, olive oil, grape seed oil, almond oil, peach seed oil, apricot kernel oil, shea butter (shea butter), rose fruit oil, ailanthus oil, tea seed oil, camellia oil, argania spinosa oil, safflower oil, sunflower seed oil, soybean oil, cotton seed oil, sesame oil, cocoa butter, corn oil, peanut oil, rape seed oil, evening primrose oil, rice bran oil, rice germ oil, wheat germ oil, coix seed oil, avocado oil, carrot oil, castor oil, linseed oil, coconut oil, palm oil, and the like. Examples of the animal oil include beef tallow, lard, mink oil, egg yolk oil, and the like.

Examples of waxes include beeswax, candelilla Wax (Candelilla Wax), carnauba Wax (Carnauba Wax), jojoba oil, lanolin, spermaceti, rice bran Wax, sugar cane Wax, palm Wax, montan Wax, cotton Wax, bay Wax, insect Wax, kapok Wax, and shellac Wax. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, bee acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, lauric acid, and linolic acid. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

As an ester, the organic acid is used, isodecyl pivalate, isostearate pivalate, 2-octyldodecyl pivalate, hexyldecyl neodecanoate, octyldodecyl neodecanoate, isostearate, isopropyl isostearate, ethyl isostearate, octyldodecyl isostearate, hexyl isostearate, 2-hexyldecyl isostearate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, octyl isopalmitate, isostearate 2-ethylhexanoate, cetyl 2-ethylhexanoate, cetylstearyl 2-ethylhexanoate, 2-hexyldecyl 12-stearyl isostearate, isocetyl 12-stearyl stearate octyl dodecyl 12-stearoyl stearate, ethylene glycol di-2-ethylhexanoate, N-alkyl glycol monoisostearate, pentaerythritol tetraethylhexanoate (pentaerythritol tetraoctanoate), cetyl octanoate, isononyl isononanoate, dipentaerythritol tetraisostearate, isopropyl myristate, isopropyl palmitate, octyl dodecyl myristate, diisopropyl adipate, diisobutyl adipate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, stearic acid, myristyl myristate, 2-octyldodecyl myristate, isotridecyl myristate, propylene glycol isostearate, glyceryl tri-2-ethylhexanoate, propylene glycol myristate-3-benzyl ether monostearate, propylene glycol monolaurate, polyglyceryl isostearate, octyl dodecyl laurate, isostearic acid cured castor oil, C10 to C30 fatty acid cholesterol/lanosterol, cetyl lactate, lanolate acetate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester (dipentaerythritol fatty acid ester), cetyl decanoate, glyceryl tricaprate, diisostearate malate, dioctyl succinate, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the silicone include amino-modified silicones such as dimethylpolysiloxane (polydimethylsiloxane), methylphenyl polysiloxane, decamethyl cyclopentasiloxane, dodecamethyl cyclohexasiloxane, terminal hydroxyl-modified dimethylpolysiloxane, high-polymer silicones having an average degree of polymerization of 650 to 10000, polyether-modified silicones, amino-ethyl aminopropyl siloxane-dimethylsiloxane copolymer (amino-polydimethylsiloxane), betaine-modified silicones, alkyl-modified silicones, alkoxy-modified silicones, mercapto-modified silicones, carboxyl-modified silicones, fluorine-modified silicones, and the like.

Among the above, the present hair dye composition may suitably contain a higher alcohol, hydrocarbon, oil, silicone, or the like as an oily component. Further, cetyl alcohol and stearyl alcohol can be suitably used as the higher alcohol. In addition, as the hydrocarbon, mineral oil can be suitably used. In addition, vegetable oils can be suitably used as the fat or oil. In addition, as the silicone, dimethylpolysiloxane can be suitably used.

When the hair dye composition contains an oily component, the content is not limited, but may be 1% by mass or more and may be 5% by mass or more relative to 100% by mass of the whole hair dye composition. In addition, it is usually 50 mass% or less.

(2) Water-soluble polymer

Examples of the water-soluble polymer include a water-soluble natural polymer, a water-soluble semisynthetic polymer, a water-soluble synthetic polymer, and a water-soluble inorganic polymer. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. The water-soluble polymer may be blended for the purpose of adjusting the viscosity of the hair dye composition.

Examples of natural water-soluble polymers include guar Gum, locust bean Gum, quince Seed (Quince Seed), carrageenan (carageenan), galactan (Galactan), gum arabic (Gum arabic), tragacanth Gum (Tragacanth Gum), pectin, mannan, xanthan Gum (xanthogen Gum), dextran (dextran), succinoglucan (succinoglucan), curdlan (Curdlan), hyaluronic acid, gelatin, casein, albumin, collagen, and dextrin. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the semisynthetic water-soluble polymer include cellulose-based water-soluble polymers, cationized guar gum, starch phosphate, propylene glycol alginate, and alginate. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the cellulose-based water-soluble polymer include methylcellulose, ethylcellulose, hydroxyethylcellulose dimethyldiallylammonium chloride, hydroxypropylcellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxypropyl methylcellulose, and cationized cellulose. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the synthetic water-soluble polymer include polyvinyl alcohol (PVA), polyvinyl butyral, polyvinyl methyl ether, carboxyvinyl polymer, sodium polyacrylate, polyacrylamide, polyethylene oxide, ethylene oxide-propylene oxide block copolymer, acrylic acid/alkyl acrylate copolymer, polydimethyl methylenepiperidine chloride, polyethylene glycol, and high polyethylene glycol. Further, a copolymer of at least one monomer selected from the group consisting of half esters of itaconic acid and POE alkyl ethers, esters of methacrylic acid and POE alkyl ethers, and acrylic acid, methacrylic acid, and alkyl esters thereof is exemplified. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among the above, the water-soluble polymer used in the hair dye composition may be a semisynthetic water-soluble polymer. Furthermore, as the semisynthetic water-soluble polymer, a cellulose-based water-soluble polymer can be suitably used. The use of cellulose-based water-soluble polymers can improve the ease of application to hair. Namely, the coatability can be improved. In addition, the uniformity of the hair dye composition can be improved. Namely, the uniformity (leveling property) of the dyed color can be improved. In addition, these effects can be obtained regardless of the moisture content of the applied hair, and in particular, the application property and uniformity to dry hair (non-wet hair and the like) can be improved. Among the cellulose-based water-soluble polymers, hydroxyethylcellulose can be suitably used.

When the water-soluble polymer is contained, the content is not limited, and may be 0.01% by mass or more and may be 0.1% by mass or more based on 100% by mass of the entire hair dye composition. Further, the content is usually 10 mass% or less.

(3) Surface active agent

Examples of the surfactant include cationic surfactants, anionic surfactants, amphoteric surfactants, and nonionic surfactants. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. The surfactant may be blended for the purpose of stably containing a dye component, an oily component, or the like in the hair dye composition, for example.

Examples of the cationic surfactant include alkyl quaternary ammonium salts such as monoalkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, benzyl quaternary ammonium salts, monoalkyl ether quaternary ammonium salts, alkyl quaternary ammonium salts, fatty acid amide amine salts, tertiary amine salts containing esters, amine salts such as Ahcovel tertiary amine salts, alkylpyridinium salts, and alkylisoquinoline saltsCyclic quaternary ammonium salts such as salts, benzethonium chloride, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among these ammonium salts, alkyl quaternary ammonium salts are preferable, monoalkyl quaternary ammonium salts and/or dialkyl quaternary ammonium salts are more preferable, and monoalkyl quaternary ammonium salts are more preferable.

Examples of the mono-alkyl quaternary ammonium salt include behenyl trimethyl ammonium chloride (behenyl trimethyl ammonium chloride), lauryl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, alkyl (16, 18) trimethyl ammonium chloride, cetyl trimethyl ammonium chloride (cetrimonium chloride), cetyl trimethyl ammonium bromide, cetyl trimethyl ammonium saccharin, stearyl trimethyl ammonium chloride (stearyl trimethyl ammonium trichloride), stearyl trimethyl ammonium bromide, cetyl trimethyl ammonium saccharin, stearyl trimethyl ammonium saccharin, distearyl dimethyl ammonium chloride (distearyl ammonium dichloride), alkyl (28) trimethyl ammonium chloride, di POE (2) oleyl methyl ammonium chloride, di POE stearyl methyl ammonium chloride, POE (1) POP (25) diethyl methyl ammonium chloride, POP methyl diethyl ammonium chloride, methacryloyloxyethyl trimethyl ammonium chloride, di cocoyl dimethyl ammonium chloride, ethyl lanolin fatty acid aminopropyl ethyl dimethyl ammonium sulfate, and behenyl trimethyl ammonium methyl sulfate. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the anionic surfactant include alkyl ether sulfate, POE alkyl ether sulfate, alkyl sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate, α -sulfofatty acid salt, N-acylamino acid type surfactant, mono-or diester phosphate type surfactant, sulfosuccinate, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Examples of counter ions of the anionic groups of these surfactants include sodium ions, potassium ions, and triethanolamine. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Specifically, examples thereof include disodium lauryl sulfosuccinate, sodium lauryl sulfate, sodium myristyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium cetyl sulfate, sodium stearate sulfate, sodium POE lauryl ether sulfate, triethanolamine POE lauryl ether sulfate, ammonium POE lauryl ether sulfate, sodium POE stearyl ether sulfate, disodium lauryl sulfosuccinate, sodium stearoylmethyltaurine, triethanolamine dodecylbenzenesulfonate, sodium tetradecensulfonate, sodium lauryl phosphate, sodium POE lauryl ether phosphate and salts thereof, N-lauroylglutamate (sodium lauroylglutamate, etc.), N-lauroylmethyl- β -alanine salt, N-acylglycine salt, N-acylglutamine salt, lauric acid, myristic acid, which are higher fatty acids, and higher fatty acid salts thereof. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

The amphoteric surfactant includes an amino acid type amphoteric surfactant and a betaine type amphoteric surfactant. Among them, examples of the amino acid type amphoteric surfactant include glycine type amphoteric surfactants such as N-lauroyl-N '-carboxymethyl-N' -hydroxyethyl ethylenediamine sodium (lauroyl amphoteric sodium acetate), 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazoline betaine sodium, undecyl hydroxyethyl imidazoline betaine sodium, alkyldiaminoethyl glycine hydrochloride, N-coco fatty acid acyl-N '-carboxyethyl-N' -hydroxyethyl ethylenediamine sodium, N-coco fatty acid acyl-N '-carboxyethoxyethyl-N' -carboxyethyl ethylenediamine disodium, N-coco fatty acid acyl-N '-carboxymethoxyethyl-N' -carboxymethyl ethylenediamine disodium, lauryl diaminoethyl glycine sodium, palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethyl ethylenediamine sodium; and aminopropionic acid type amphoteric surfactants such as sodium laurylaminopropionate, triethanolamine laurylaminopropionate, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the betaine type amphoteric surfactant include glycine betaine type amphoteric surfactants such as coco oil alkyl betaine, lauryl dimethyl glycine betaine, myristyl dimethyl glycine betaine, stearyl dimethyl betaine sodium, coco fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, stearyl dihydroxyethyl betaine; and sulfobetaine type amphoteric surfactants such as lauryl hydroxysulfobetaine. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the nonionic surfactant include ether nonionic surfactants, ester nonionic surfactants, and alkyl glucosides. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Examples of the ether-type nonionic surfactant include POE (5.5) cetyl ether, POE (6) cetyl ether, POE (7) cetyl ether, POE (10) cetyl ether, POE (15) cetyl ether, POE (20) cetyl ether, POE (23) cetyl ether, POE (25) cetyl ether, POE (30) cetyl ether, POE (40) cetyl ether, POE (2) cetyl ether, POE (4) cetyl ether, POE (5) cetyl ether, and POE cetyl ether (Ceteth); POE stearyl ether (Steareth) such as POE (20) stearyl ether, POE (150) stearyl ether, POE (4) stearyl ether, POE (5) stearyl ether, POE (2) stearyl ether, and the like; POE (10) behenyl ether, POE (20) behenyl alcohol ether, POE (30) behenyl alcohol ether, POE (150) behenyl alcohol ether, POE (2) behenyl alcohol ether, POE (3) behenyl ether, POE (5) behenyl alcohol ether, POE (6) behenyl alcohol ether, and POE behenyl alcohol ether (behenet h); POE (7) oil ether, POE (10) oil ether, POE (15) oil ether, POE (20) oil ether, POE (50) oil ether, POE (2) oil ether, POE (3) oil ether, and other POE oil ethers (oles); POE (4.2) lauryl ether, POE (9) lauryl ether, POE (10) lauryl ether, POE (21) lauryl ether, POE (25) lauryl ether, POE (2) lauryl ether, POE (3) lauryl ether, and other POE lauryl ethers (Laureth); POE myristyl ethers such as POE (2) myristyl ether and POE (3) myristyl ether; POE octyl dodecyl ether such as POE (2) octyl dodecyl ether and POE (5) octyl dodecyl ether; POE (2) hexyl decyl ether, POE (4) hexyl decyl ether, and the like; POE isostearyl ethers such as POE (5) isostearyl ether; POE nonylphenyl ether; POE octyl phenyl ether; POE polyoxy propylene cetyl ether such as POE (10) POP (4) cetyl ether, POE (20) POP (8) cetyl ether, POE (1) POP (4) cetyl ether and the like: POE (12) POP (6) decyl tetradecyl ether and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

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 glyceryl monostearate and POE glyceryl monomyristate; POE sorbitol fatty acid esters such as POE sorbitol tetraoleate, POE sorbitol hexastearate, POE sorbitol monolaurate and the like. The number of moles of POE of the POE sorbitan fatty acid ester and the mono-glyceryl mono-fatty acid ester added is, for example, 5 or more. The additional molar number of POE of the POE sorbitol fatty acid ester is, for example, 6 or more. Examples of the other ester type nonionic surfactants include sorbitol beeswax such as POE (6) POE sorbitol beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol monolaurate, lipophilic type glycerol monooleate, lipophilic type glycerol monostearate, self-emulsifying type glycerol monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid ester, decaglycerol monolaurate, decaglycerol monostearate, decaglycerol monooleate, decaglycerol monomyristate, and POE reduced lanolin. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among the above, cationic surfactants can be suitably used as the surfactant in the present hair dye composition. In particular, the hair dye composition can be used as a color hair cream with a maintenance function in addition to a hair dyeing function. In this case, from the viewpoint of maintenance, it is preferable to use a cationic surfactant.

In the hair dye composition, a monoalkyl type quaternary ammonium salt may be preferably used as the cationic surfactant, and behenyl ammonium trichloride, western Qu Lvan (Cetrimonium chloride) and the like are more preferably used.

When the surfactant is contained, the content is not limited, but may be 0.1 mass% or more and may be 1 mass% or more with respect to 100 mass% of the entire hair dye composition. Further, the content is usually 10 mass% or less.

(4) PH regulator

As pH adjuster, acids and/or bases may be used.

Examples of the acid include organic acids, inorganic acids, and salts thereof.

Among them, examples of the organic acid include malic acid, pyrrolidone carboxylic acid, succinic acid, citric acid, tartaric acid, lactic acid, amino acid, and organic sulfonic acid. Further, examples of the amino acid include glutamic acid and arginine. Further, as the organic sulfonic acid, taurine and the like are mentioned.

On the other hand, examples of the inorganic acid include phosphoric acid, hydrochloric acid, sulfuric acid, boric acid, and the like.

Further, examples of the salt include salts of the above-mentioned organic acid and salts of inorganic acid. More specifically, alkali metal salts and ammonium salts are exemplified. Among them, examples of alkali metal species constituting the alkali metal salt include sodium, potassium, and the like.

These various acids may be used in an amount of 1 or 2 or more.

Examples of the base include organic bases, inorganic bases, and salts thereof.

Among them, examples of the organic base include organic amines, basic amino acids (arginine, lysine, salts thereof, and the like), guanidine, and salts thereof (guanidine carbonate, and the like), and the like. Specifically, alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, aminomethylpropanol (e.g., 2-amino-2-methyl-1-propanol), aminomethylpropanediol (e.g., 2-amino-2-methyl-1, 3-propanediol), and alkylamines such as isopropylamine can be mentioned. The organic base may be used in an amount of 1 or 2 or more.

On the other hand, examples of the inorganic base include hydroxides, chlorides, silicates, carbonates, hydrogencarbonates, metasilicates, phosphates, sulfates, ammonia, and the like. Specifically, examples thereof include alkali metal hydroxides such as sodium hydroxide, alkali metal carbonates such as sodium carbonate, alkali metal hydrogencarbonates such as sodium hydrogencarbonate, alkaline earth metal hydroxides such as magnesium hydroxide and calcium hydroxide, alkaline earth metal carbonates such as magnesium carbonate and calcium carbonate, and the like. The inorganic base may be used in an amount of 1 or 2 or more.

When the pH adjustor is included, the buffering action may be applied so as to adjust the pH to be used as the target and the pH range to be used as the target, and the content is not limited, and may be 0.001 mass% or more and may be 0.01 mass% or more, for example, when the content is set to 100 mass% of the entire hair dye composition. Further, the content is usually 10 mass% or less.

(5) Preservative agent

Examples of the preservative include phenoxyethanol, methyl paraben, ethyl paraben, propyl paraben, isopropyl paraben, butyl paraben, isobutyl paraben, and sodium benzoate. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. Among these compounds, phenoxyethanol can be suitably used in the hair dye composition.

When the preservative is contained, the content is not limited, and may be 0.01 mass% or more and may be 0.1 mass% or more with respect to 100 mass% of the entire hair dye composition. In addition, the content is usually 3 mass% or less.

(6) Antioxidant agent

Examples of the antioxidant include ascorbic acid (L-ascorbic acid) and anhydrous sodium sulfite. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

(7) Stabilizing agent

Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

(8) Polypeptides

Examples of the polypeptides include animal proteins, plant proteins, hydrolysates thereof (hydrolyzed proteins), and cationized hydrolyzed proteins. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

Among them, examples of animal proteins include keratin, collagen, silk, conchiolin, elastin, fibroin, casein, gelatin, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. The vegetable protein may be a vegetable protein (soybean protein, wheat protein, barley protein, oat protein, almond protein) obtained from plants such as soybean, wheat, barley, oat, almond, etc.

The hydrolyzed protein includes a component obtained by hydrolyzing each of the above proteins with an acid, an alkali, an enzyme, or the like. The cationized hydrolyzed protein includes a component obtained by cationizing a hydrolyzed protein with a modifier, a component obtained by hydrolyzing a cationized protein modified in advance, and the like. Further, examples of the hydrolyzed protein include hydrolyzed keratin, hydrolyzed collagen, hydrolyzed silk, hydrolyzed conchiolin, and hydrolyzed soybean protein. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

(9) Amino acids

Examples thereof include amino acids such as aspartic acid, glutamic acid, glycine, alanine, theanine, arginine, histidine, and threonine, and salts thereof; amino acid-like compounds such as taurine, and the like. Only 1 kind of these may be used, or 2 or more kinds may be used in combination. By using these amino acids, for example, the glossiness of hair can be improved.

(10) Plant extracts

As an extract of a plant, it is possible to obtain, examples thereof include avocado extract, sea tea extract, aloe extract, almond extract, apricot kernel extract, ginkgo extract, fennel extract, turmeric extract, baical skullcap root extract, amur corktree bark extract, hypericum perforatum extract, orange extract, sea cucumber extract, chamomile extract, licorice extract, gardenia extract, bear side extract, grapefruit extract, mulberry extract, cowberry extract, burdock extract, bamboo extract, hawthorn extract, pricklyash extract, mallow extract, rehmannia root extract, perilla extract, basswood extract, peony extract, ginger extract, white birch extract, pennisetum extract, sage extract, american hawthorn extract, thyme extract, loquat extract, clove extract, houttuynia extract, hibiscus extract, witch hazel extract, parsley extract, luffa extract, peppermint extract, linden extract, pine extract, astragalus extract, orange extract, apple extract, orange extract, rose extract, sage extract, orange extract, apple extract, rose extract, etc. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

In addition to the above, the composition may further contain at least one component selected from the group consisting of flavors, sugars (maltose, glycosyl trehalose, N-acetylglucosamine, etc.), inorganic salts (sodium chloride, sodium carbonate, etc.), buffers (sodium phosphate, etc.), chelating agents (edetic acid and salts thereof, diethylenetriamine pentaacetic acid and salts thereof, hydroxyethane bisphosphate and salts thereof, etc.), vitamins, flavors, colorants, ultraviolet absorbers, and "materials for medical department and external materials" which are released in 2006, japanese and medical science. Only 1 kind of these may be used, or 2 or more kinds may be used in combination.

[7] Form and use of hair dye composition

The dosage form (dosage form at 25 ℃) of the hair dye composition is not limited, and may be appropriately selected depending on the application and purpose, and may be, for example, cream, emulsion (emulsion), dispersion, paste, foam (foam), liquid, aqueous solution, gel, solid, or the like. The composition may be used in a 1-dose form or in a multi-dose form divided into 2 or more doses. In the case of the multi-dose type, the components may be mixed and used before use, or may be used independently in order.

In the case where the present hair dye composition is in a liquid state, the viscosity is not limited, and may be, for example, 1000 to 60000 mPas, and the lower limit is preferably 5000 mPas or more. By having a viscosity of 5000mpa·s or more, sagging after application is suppressed, and adhesion to hair is improved, whereby dyeing can be facilitated. The lower limit is more preferably 10000 mPas or more, and still more preferably 15000 mPas or more. On the other hand, the upper limit of the viscosity is preferably 50000 mPas or less. When the viscosity is 5000mpa·s or less, the hair dye composition can be easily applied by being easily applied. The upper limit is more preferably 40000 mPas or less, and still more preferably 30000 mPas or less. These upper and lower limit values may be arbitrarily combined. For example, 5000 to 50000 mPas, 10000 to 40000 mPas, and 15000 to 30000 mPas.

The viscous liquid is, for example, cream, emulsion (emulsion), paste, gel, or the like. In the case of such a viscous liquid, for example, the liquid can be discharged from a tube or a pump, and a tube-type or pump-type product can be obtained.

The viscosity was measured using a type B viscometer at 25℃and 12rpm for 1 minute using a No. 4 roller (suitably in the range of 5000 to 50000 mPas).

Among the above, when the present hair dye composition is in a viscous liquid state, it is preferable to use a tube-shaped packaging material for the packaging material shown in fig. 1 to 3.

The packaging material 1 includes a main body 2 for storing the hair dye composition as a content, and a nozzle 4 for discharging the content. Further, a cover fixing portion 3 for fixing the cover 5 may be provided between the main body portion 2 and the nozzle portion 4. Further, as shown in fig. 1 to 3, in the case of using a screw structure as the cover fixing portion 3, the cover fixing portion 3 is formed in a male screw shape, and on the other hand, a female screw shape is provided by forming a screw groove in a corresponding portion of the cover 5, whereby the screw can be screwed with each other.

In such a tubular packaging material, as shown in fig. 1 to 3, by narrowing the tip of the nozzle portion, a viscous liquid material can be easily discharged, and an appropriate amount can be separated and taken out. The nozzle portion can be directly contacted with hair to discharge a suitable amount at a desired position for dyeing hair. That is, the present invention can be easily utilized for repair.

The use of the hair dye composition is not limited, and may be a cleansing agent, a hair care agent, a temporary coloring agent, a hair styling agent, a shampoo, a conditioner, a hair mask, a foundation, a color control cream, a color control spray, a mascara, a colored wax, a pretreatment agent, a post-treatment agent, etc., but particularly preferred is a colored foundation, a colored hair mask, a colored hair conditioner, a colored shampoo, etc. According to these, the present composition can be applied to hair at the time of daily hair care, and as a result, continuous dyeing can be performed by repeating dyeing treatment. Among the above, the present hair dye composition is particularly preferably used for a color hair cream, a color hair film, a color hair conditioner, etc. having a hair care effect in addition to the hair dyeing effect.

The hair dye composition can be applied to hair in a state of being wetted in water or warm water, and can also be applied to dry hair. Further, after application, the washing may be performed, or may be performed without washing, and washing is preferable. In addition, the application method in the case of applying the present hair dye composition to hair is not limited, and the application may be performed by a comb, by a spray can (spray), by a comb or brush, or the like.

Among these, the hair dye composition is preferably applied to the hair in a wet state of the hair dye composition from the viewpoint of easy application (good extensibility, etc.), but is more preferably applied to the dry hair from the viewpoint of obtaining a high hair dyeing ability. In this case, the coating may be performed based on a general method of care or treatment of the conditioner. After the hair dye composition is applied to the hair, it may be left to stand for a prescribed time. The composition applied to the hair can then be washed with hot water based on conventional methods. Furthermore, the hair may be dried based on conventional methods.

The hair dye composition can be applied to any hair. Namely, the hair dye composition can be applied to black hair, white hair, bleached hair (hair after the black hair is bleached), hair after dyeing, and the like, and is suitable for application to white hair and/or hair after dyeing from the viewpoint of dyeing effect.

Namely, the hair after being applied to the hair dyeing includes: repairing, changing, adding, etc. the color of the hair after dyeing. Such a use method is called, for example, dyeing and repairing. That is, the present hair dye composition has excellent dyeing ability and discoloration inhibition, and particularly excellent color saturation and color tone change inhibition effect, and thus has properties suitable for dyeing and repairing purposes.

Examples (example)

The present invention will be described in more detail below with reference to examples, but these examples are merely examples shown for convenience of description, and the present invention is not limited to these examples in any way.

[1] Preparation of hair dye composition

The hair dye compositions of examples 1 to 21 and comparative examples 1 to 2 were prepared by mixing the following ingredients in the mass ratios shown in tables 1 to 4. The preparation method is shown below.

(1) Preparation method

The hair dye compositions of examples 1 to 21 and comparative examples 1 to 2 were 1-dose hair dye compositions each comprising a total component, and were obtained in accordance with the following procedure. That is, each component other than polydimethylsiloxane was put into a container, and emulsified at 80 ℃. Then, polydimethylsiloxane was added to the obtained emulsion, and purified water was added so as to be 100% in total, and the mixture was mixed to obtain hair dye compositions of examples 1 to 21 and comparative examples 1 to 2 as creamy emulsions. For mixing, a mixer "emulsion tester type ET-3A" (manufactured by Nikki Co., ltd.) was used.

(2) Details of the ingredients

The components shown in tables 1 to 4 are as follows.

[ component A ] 2-chloro-4-nitrophenol derivative

2-amino-6-chloro-4-nitrophenol

[ component B ] HC dye

HC Red 13

HC yellow 4

HC blue 16

HC blue 2

[ component C ] basic dye

Basic orange 31

Basic blue 75

Alkaline tea 16

Alkaline tea 17

Component D solubilizer

Glycerol

Ethoxydiglycol

PEG400 (polyethylene glycol)

Benzyl alcohol

1, 3-butanediol

Propylene glycol

[ base ]

Cetyl alcohol

Stearyl alcohol

Mineral oil

Behenyl ammonium trichloride

Western Qu Lvan

HEC: hydroxyethyl cellulose perfume

Polydimethyl siloxane

Phenoxyethanol

Sodium hydroxide: pH adjustment

[2] Evaluation of hair dye composition (1) Hair dyeing treatment

The hair dyeing treatment was performed in the following manner.

(1-2) Hair dyeing treatment

After 1 time of application of shampoo (Bigen Treatment Shampoo by friend Co., ltd.) to a hair bundle sample (manufactured by Beaulax Co., ltd.) of white hair for evaluation having a length of 10cm, each of the hair dye compositions of examples 1 to 21 and comparative examples 1 to 2 was applied to 1g of the hair bundle with bristles so that the hair dye composition became 1g, and after 5 minutes from the application to the hair bundle, the composition attached to the hair bundle was rinsed with water. Next, the hair tresses were dried with hot air. This operation was repeated three times to obtain hair bundles for hair dyeing treatment of each example.

(1-3) evaluation of dyeing ability

The panelists evaluating the dyeing under the standard light source visually observe the dyeing treatment strands obtained in the above (1-2), and evaluate the intensity of dyeing of the dyeing compositions of each example. In the evaluation, before the evaluation, the evaluation of the standard sample was performed by the panelist, the respective scores of the evaluation criteria were normalized, and on the basis of this, the objective evaluation was performed by 10 panelists. The evaluation was based on scores corresponding to the 4-stage benchmarks shown in the following 1 to 4. The evaluation is performed by selecting one value closest to each evaluation from the scores by each evaluation member.

4: very good dyeing

3: good dyeing

2: slightly light dyeing

1: shallow dyeing

Then, the average value of the scores of the evaluation members was calculated, and the average value was evaluated as "excellent" at 3.5 points or more: 5", 3 points or more and less than 3.5 points were evaluated as" good: 4", a score of 2.5 or more and less than 3 was evaluated as" pass: 3", a score of 2 or more and less than 2.5 was evaluated as" slightly worse: 2", and less than 2 points are rated as" difference: 1", and this was used as an evaluation result. The results are shown in the column of "dyeing ability" in tables 1 to 3.

(1-4) evaluation of color saturation

A mixed hair bundle of white hair and black hair (human white hair 30% MIX: manufactured by Beaulax Co., ltd.) having a length of 10cm was subjected to the same treatment as in (1-2) above to obtain a hair dyeing treatment bundle. The color saturation of the hair dye composition based on each example was evaluated by visual observation of the resulting hair bundle of the hair dye treatment by a professional evaluation member of the hair dye evaluation under a standard light source.

In the evaluation, the evaluation member was used to evaluate a standard sample before the evaluation, and the evaluation standard was normalized for each score, but the objective evaluation was performed by 10 members. The evaluation was based on scores corresponding to the 4-stage benchmarks shown in the following 1 to 4. The evaluation is performed by each evaluation member selecting one value closest to the own evaluation from the scores.

4: no color other than brown and black is seen at all

3: hardly see colors other than brown and black

2: see colors other than brown and black

1: the colors other than brown and black are obviously seen

Then, the average value of the scores of the evaluation members was calculated, and the average value was evaluated as "excellent" at 3.5 points or more: 5", 3 points or more and less than 3.5 points were evaluated as" good: 4", a score of 2.5 or more and less than 3 was evaluated as" pass: 3", a score of 2 or more and less than 2.5 was evaluated as" slightly worse: 2", and less than 2 points are rated as" difference: 1", as the evaluation result. The results are shown in the column "color saturation" of tables 1 to 3.

The evaluation of the color saturation is, for example, an evaluation of whether or not white hair dyed with the hair dye composition can be fused with surrounding black hair without giving an uncomfortable feeling in a case where white hair is sparsely generated in black hair. That is, for example, if the coloring other than brown and black is clearly seen even if the coloring is sufficiently performed, the colored white hair is not integrated with the surrounding black hair, but is conspicuous. Preferably a hair dye composition which is capable of dyeing hair in such a way that such a situation occurs less frequently. That is, in the evaluation of the color saturation, it can be said that no clear brown or other colors than black are seen as preferable results.

(1-5) evaluation of discoloration inhibition

After terminating the evaluation of the dyeing ability and the color saturation, the hair was separated from the hair-dyeing treatment strands obtained up to (1-2) above, immersed in a 1% aqueous solution of sodium lauryl sulfate heated to 50℃for 15 minutes, then rinsed with water to 1% aqueous solution of sodium lauryl sulfate, then subjected to nursing (Bigen Treatment Rinse by friend Co., ltd.) and washing with water, and then the strands were wiped with a towel to remove moisture, and dried with a dryer. This operation was repeated 7 times to obtain hair tresses for evaluation of discoloration inhibition in each example.

The hair tresses for dyeing treatment and the hair tresses for evaluation of inhibition of discoloration obtained in the above (1-2) were visually observed by a professional evaluation member for evaluation of dyeing under a standard light source, and the discoloration state of each example before and after the treatment was evaluated. In the evaluation, the evaluation member evaluated the standard sample before the evaluation, and the evaluation was standardized for each score of the evaluation standard, and in addition, the evaluation having objectivity was performed by 10 members. The evaluation was based on scores corresponding to the 4-stage benchmarks shown in the following 1 to 4. The evaluation is performed by each evaluation member selecting one value closest to the own evaluation from the scores.

4: no discoloration at all

3: hardly see discoloration

2: see discoloration

1: see significant discoloration

Then, the average value of the scores of the evaluation members was calculated, and the average value was evaluated as "excellent" at 3.5 points or more: 5", 3 points or more and less than 3.5 points were evaluated as" good: 4", a score of 2.5 or more and less than 3 was evaluated as" pass: 3", a score of 2 or more and less than 2.5 was evaluated as" slightly worse: 2", and setting less than 2 minutes as" difference: 1", as the evaluation result. The results are shown in the column "discoloration inhibition" in tables 1 to 3.

In the evaluation of the discoloration inhibition, it was confirmed whether or not the dyeing state of the hair bundle was changed from a concentrated state to a lighter state (in the case where the dyeing state was maintained without change) before and after the above-described washing operation, and if the change was confirmed, the degree was evaluated. In addition, the change at this time does not include a change in color. The color change is attributed to the evaluation of the suppression of the color tone change. For example, the case where the discoloration inhibition is excellent and the color change inhibition effect is low means a state in which the color is changed due to the absence of a specific dye although the heavy dyeing state is maintained.

(1-6) evaluation of inhibition of tone Change

The hair tresses for evaluation of color fading inhibition obtained up to (1-5) above were used as hair tresses for evaluation of color change inhibition. Then, the hair tresses for dyeing treatment and the hair tresses for evaluating the inhibition of the color tone change obtained in the above (1-2) were visually observed by a professional evaluation member evaluating the dyeing under a standard light source, and the color tone changes of the hair dye compositions of each example were evaluated.

In the evaluation, the evaluation member performed a standard sample evaluation before the evaluation, and each score of the evaluation standard was normalized, and in addition, 10 members performed objective evaluation. The evaluation was based on scores corresponding to the 4-stage benchmarks shown in the following 1 to 4. The evaluation is performed by each evaluation member selecting one value closest to the own evaluation from the scores.

4: no change in hue was seen at all

3: almost no change in hue was seen

2: see the change in hue

1: see significant color change

Then, the average value of the scores of the evaluation members was calculated, and the average value was evaluated as "excellent" at 3.5 points or more: 5", 3 points or more and less than 3.5 points were evaluated as" good: 4", a score of 2.5 or more and less than 3 was evaluated as" pass: 3", a score of 2 or more and less than 2.5 was evaluated as" slightly worse: 2", and setting less than 2 minutes as" difference: 1", as the evaluation result. The results are shown in the column "color change" in tables 1 to 3.

In the evaluation of the suppression of the color tone change, it was confirmed whether the color of the hair bundle was changed (in the case where the color was not changed, in order to maintain the color tone) before and after the above-described washing operation, and the degree was evaluated when the change was confirmed. In addition, the change at this time does not include shading. The change in shade was attributed to the evaluation of discoloration inhibition. Further, since the hair dye composition is usually repeatedly used for dyeing hair, if the color is changed by washing, there is a possibility that the color saturation after continuous use may be affected, and therefore, it is preferable to suppress the change in color tone.

(2) Evaluation of skin contamination

(2-1) staining of skin

In the range of about 1cm in diameter of the inner side portion of the forearm in the dry state of the evaluation model (healthy adult), 0.1g of each example of the hair treatment composition was applied in a round shape, left for 5 minutes, and then washed with water. The coated portion was subjected to 2 times of washing treatment using Bigen Treatment Shampoo composition manufactured by friend corporation.

(2-2) evaluation of skin contamination

The panelists evaluating skin staining under a standard light source visually observe the dyed skin obtained in the above (2-1) under a standard light source to evaluate the presence or absence of staining (i.e., skin staining) and the intensity of the skin with respect to each example of the hair dye composition.

In the evaluation, the evaluation member evaluated the standard sample before the evaluation, and the evaluation standard was normalized for each score, but the evaluation was objectively performed by 10 members. The evaluation was based on scores corresponding to the 4-stage benchmarks shown in the following 1 to 4. The evaluation is performed by selecting one value closest to the evaluation of the member from the scores.

4: no skin contamination at all

3: hardly see skin pollution

2: see skin contamination

1: significant skin contamination was seen

Then, the average value of the scores of the evaluation members was calculated, and the average value was evaluated as "excellent" at 3.5 points or more: 5", 3 points or more and less than 3.5 points were evaluated as" good: 4", a score of 2.5 or more and less than 3 was evaluated as" pass: 3", a score of 2 or more and less than 2.5 was evaluated as" slightly worse: 2", and less than 2 points were evaluated as" difference: 1", and an evaluation result was obtained. The results are shown in the column "skin pollution" of tables 1 to 3.

TABLE 1

TABLE 2

TABLE 3

TABLE 4

[3] Effects of the examples

From the results shown in tables 1 to 3, it is understood that in the case of using the hair dye composition of comparative example 1 containing only the B component of the a component and the B component, and in the case of using the hair dye composition of comparative example 2 containing only the a component of the a component and the B component, the sufficient results were not obtained in both items of the hair dyeing ability and the discoloration inhibition. In contrast, when the hair dye composition of example 1 containing both the component a and the component B is used, excellent results are obtained in terms of both the hair dyeing ability and the discoloration inhibition. That is, it is known that a hair dye composition can achieve both excellent hair dyeing ability and discoloration inhibition.

Examples 11, 12 and 13 are hair dye compositions containing only 1 kind of component B selected from HC red 13, HC yellow 4 and HC blue 16, while examples 1 to 5 are hair dye compositions containing 2 or more kinds of component B selected from HC red 13, HC yellow 4 and HC blue 16. Comparing them, it can be seen that: by containing 2 or more specific HC dyes as the B component, the discoloration inhibition and the tone change inhibition are significantly improved.

From the viewpoint of pH, it is understood from comparison of examples 6, 7, 8, 1, 9, and 10 that the closer to ph=7, the higher the balance of the overall evaluation.

Claims

1. A hair dye composition comprising the following components A and B,

a is a compound represented by the following formula (1),

in the formula (1), R is amino or ethylamino,

b is HC dye.

2. The hair dye composition according to claim 1, wherein B is at least 1 selected from HC red 13, HC yellow 4, HC blue 16.

3. A hair dye composition according to claim 1 or 2, wherein the content of a relative to 100% by mass of the total hair dye composition is W _A The content of B in 100% by mass of the whole hair dye composition is W _B In the case of mass%, the following formula is satisfied:

W _A ＜W _B 。

4. the hair dye composition according to claim 1, further comprising C,

c is a basic dye.

5. The hair dye composition according to claim 4, wherein C is at least 1 selected from the group consisting of basic orange 1, basic orange 2, basic orange 31, basic blue 3, basic blue 6, basic blue 7, basic blue 9, basic blue 26, basic blue 41, basic blue 47, basic blue 75, basic blue 77, basic blue 99, basic blue 124.

6. A hair dye composition according to claim 4 or 5, wherein the content of a relative to 100% by mass of the total hair dye composition is W _A The content of B in 100% by mass of the whole hair dye composition is W _B The content of C in 100% by mass of the whole hair dye composition is W _C In the case of mass%, W satisfies the following formula _C ＜W _A ＜W _B 。