JP2023172174A - hair dye composition - Google Patents

Abstract

To provide a novel hair dye composition capable of achieving both excellent hair dyeing power and discoloration control.SOLUTION: The hair dye composition contains A and B, where A is a compound represented by formula (1), and where B is an HC dye. [In formula (1), R is an amino group or an ethylamino group.]SELECTED DRAWING: Figure 1

Description

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

It has been known that 2-amino-6-chloro-4-nitrophenol, which is a type of 2-chloro-4-nitrophenol derivative, can be used for hair dyeing (Patent Document 1).

JP2014-234381A

Semi-permanent hair dyeing using hair dyes is easier to dye than permanent hair dyeing using hair dyes, and market needs have been growing rapidly in recent years. This semi-permanent hair dyeing is a hair dyeing method that uses direct dyes, and by using basic dyes, HC dyes, etc. as the direct dyes, it is possible to dye hair easily. Among these direct dyes, basic dyes exhibit excellent hair dyeing power in a short time, but because they remain on the hair surface, it is difficult to satisfactorily suppress fading, especially when used with detergents. has. On the other hand, while HC dyes show resistance to fading by penetrating into the hair, they have the problem that it is difficult to obtain sufficient hair dyeing power in a short period of time because the time required for dyeing is longer than that of basic dyes. Therefore, if you combine the two, it seems that you can cover each other's weak points and obtain good results overall, but in reality, the dyeing mechanisms of basic dyes and HC dyes are different, so both It is difficult to arrange the optimum dyeing conditions for the dyes, and it is difficult to improve the overall dyeing properties only by using them together.

On the other hand, 2-amino-6-chloro-4-nitrophenol is a component that exhibits a yellow to orange color, and it is difficult to use it alone for hair. Furthermore, as described in Patent Document 1, there is a problem that the dyeing performance of 2-amino-6-chloro-4-nitrophenol is strongly dependent on pH. In other words, at a low pH of around 6.0, dyeability is good, but dye precipitation tends to occur, and a pH of 6.5 or higher is required to suppress precipitation, but this pH range is not suitable for hair dyes from the viewpoint of dyeability. It has been stated that this is not optimal (Patent Document 1 [0003]). As described above, it is thought that 2-amino-6-chloro-4-nitrophenol has some aspects that make it difficult to utilize, which is why it has not been used much in the market.

The present invention has been made in view of the above circumstances, and relates to a novel hair dye composition that is capable of achieving both excellent hair dyeing power and prevention of fading.

The present inventors investigated a hair dye composition that can compensate for the weaknesses of HC dyes while using HC dyes as a base dye component. As a result, by using a 2-chloro-4-nitrophenol derivative in combination with an HC dye, the pH dependence of the 2-chloro-4-nitrophenol derivative can be compensated for by the HC dye, and the hair dyeing power of the HC dye It has been discovered that the weakness of 2-chloro-4-nitrophenol can be compensated for by a 2-chloro-4-nitrophenol derivative, and as a result, by using these two components, it is possible to obtain synergistically excellent hair dyeing power and fading inhibiting effect, and the present invention was completed.

〔式（１）中、Ｒは、アミノ基、又は、エチルアミノ基である。〕
Ｂ：ＨＣ染料
［２］上記Ｂが、ＨＣ赤１３、ＨＣ黄４、ＨＣ青１６からなる群から選ばれる少なくとも１種である上記［１］に記載の染毛料組成物。
［３］本染毛料組成物全体１００質量％に対する上記Ａの含有割合をＷ_Ａ質量％、上記Ｂの含有割合をＷ_Ｂ質量％とした場合に、以下を満たす上記［１］又は［２］に記載の染毛料組成物。
Ｗ_Ａ＜Ｗ_Ｂ
［４］更に、下記Ｃを含む上記［１］乃至［３］のうちのいずれかに記載の染毛料組成物。
Ｃ：塩基性染料
［５］上記Ｃが、塩基性橙１、塩基性橙２、塩基性橙３１、塩基性青３、塩基性青６、塩基性青７、塩基性青９、塩基性青２６、塩基性青４１、塩基性青４７、塩基性青７５、塩基性青７７、塩基性青９９、塩基性青１２４からなる群から選ばれる少なくとも１種である上記［４］に記載の染毛料組成物。
［６］本染毛料組成物全体１００質量％に対する上記Ａの含有割合をＷ_Ａ質量％、上記Ｂの含有割合をＷ_Ｂ質量％、上記Ｃの含有割合をＷ_Ｃ質量％とした場合に、以下を満たす上記［４］又は［５］に記載の染毛料組成物。
Ｗ_Ｃ＜Ｗ_Ａ＜Ｗ_Ｂ The invention includes:
[1] A hair dye composition characterized by containing the following A and B.
A: Compound represented by the following formula (1)

[In formula (1), R is an amino group or an ethylamino group. ]
B: HC dye [2] The hair dye composition according to [1] above, wherein B is at least one selected from the group consisting of HC Red 13, HC Yellow 4, and HC Blue 16.
[3] The above [1] or [2] that satisfies the following, assuming that the content ratio of the above A is W _A mass % and the content ratio of the above B is W _B mass % with respect to 100 mass % of the entire hair dye composition. The hair dye composition described in .
W _A < W _B
[4] The hair dye composition according to any one of [1] to [3] above, further comprising the following C.
C: Basic dye [5] The above C is basic orange 1, basic orange 2, basic orange 31, basic blue 3, basic blue 6, basic blue 7, basic blue 9, basic blue 26, the dye according to [4] above, which is at least one selected from the group consisting of Basic Blue 41, Basic Blue 47, Basic Blue 75, Basic Blue 77, Basic Blue 99, and Basic Blue 124. Hair composition.
[6] When the content ratio of the above A is W _A mass %, the content ratio of the above B is W _B mass %, and the content ratio of the above C is W _C mass %, based on 100 mass % of the entire hair dye composition, The hair dye composition according to [4] or [5] above, which satisfies the following.
W _C <W _A <W _B

According to the hair dye composition of the present invention, it is possible to achieve both excellent hair dyeing power and suppression of fading.

FIG. 2 is a half-sectional view showing an example of a packaging material containing the present hair dye composition. FIG. 2 is an enlarged half-sectional view showing a nozzle portion of the packaging material shown in FIG. 1. FIG. FIG. 2 is a half-sectional view showing an example of a lid covering a nozzle part in the packaging material shown in FIG. 1. FIG.

The present invention will be explained in detail below.
Unless otherwise specified, "%" means "% by mass", "part" means "part by mass", and the notation "X to Y" means "more than or equal to X and less than or equal to Y". .
Further, regarding the names of some compounds, names according to the Japan Cosmetic Industry Federation ingredient display name list or names according to INCI (INCI: International Nomenclature of Cosmetic Ingredients) are used.
Furthermore, regarding the names of some compounds, polyoxyalkylene chains may be abbreviated as "POE" for polyoxyethylene chains and "POP" for polyoxypropylene chains. Further, the numbers in parentheses following these abbreviations each represent the number of moles added. Furthermore, (meth)acrylic acid represents acrylic acid or methacrylic acid.

〔式（１）中、Ｒは、アミノ基、又は、エチルアミノ基である。〕
Ｂ成分：ＨＣ染料
尚、本発明では、Ａ成分は、ＨＣ染料に含まれない。 The hair dye composition of the present invention (hereinafter also simply referred to as "the present composition") is characterized by containing component A and component B shown below.
A component: a compound represented by the following formula (1)

[In formula (1), R is an amino group or an ethylamino group. ]
Component B: HC dye In the present invention, component A is not included in the HC dye.

[1] Component A Component A is a 2-chloro-4-nitrophenol derivative. This component A is represented by the following formula (1), where R is an amino group or an ethylamino group.

That is, component A is _A1 component (2-amino-6-chloro-4-nitrophenol) represented by the following formula (2), and _A2 component (2-amino-6-chloro-4-nitrophenol) represented by the following formula (3). chloro-6-ethylamino-4-nitrophenol).

By containing the A component together with the B component, as described above, it is possible to achieve both hair dyeing power and fading prevention. Furthermore, by containing component A, it is possible to exhibit an effect of improving color familiarity and an effect of suppressing color tone change.

The content of component A is not limited, but when the entire hair dye composition is 100% by mass, the proportion of A (WA _% by mass) is preferably 0.001% by mass or more. By setting the proportion of component A to 0.001% by mass or more, the effect of the combined use of component A and component B can be more reliably obtained. This proportion is more preferably 0.005% by mass or more, even more preferably 0.01% by mass or more, and particularly preferably 0.05% by mass or more.
On the other hand, the proportion of A ( _WA mass %) is preferably 5 mass % or less. By setting the proportion of component A to 5% by mass or less, the effect of the combined use of component A and component B can be more reliably obtained. This proportion is more preferably 3% by mass or less, even more preferably 1% by mass or less, and particularly preferably 0.5% by mass or less.
These upper and lower limit values can be arbitrarily combined. For example, it can be 0.001 to 5% by mass, it can be 0.005 to 3% by mass, it can be 0.01 to 1% by mass, and it can be 0.05 to 0.5% by mass. It can be done.

[2] Component B Component B is an HC dye. HC dyes are direct dyes in which the dye component itself has a color and can directly dye hair without involving chemical reactions such as oxidative polymerization.
In this specification, a dye having a dye name that is a combination of "HC", "color name", and "number" in this order is referred to as an HC dye. That is, for example, 2,2'-[(4-amino-3-nitrophenyl)imino]bisethanol hydrochloride (CAS RN:94158-13-1) is HC Red 13 (HC Red 13, HC Red 13). Because it has a dye name that is a combination of "HC", "color name (red in this case)" and "number (13 in this case)", it is included in the HC dye in this specification.

By containing component B together with component A, it is possible to achieve both hair dyeing power and suppression of fading. Furthermore, by containing component B, it is possible to exhibit an effect of improving color matching.

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), HC purple dye (HC Violet), etc. can be mentioned. These may be used alone or in combination of two or more.

Among the above HC dyes, HC red dyes 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, etc. These may be used alone or in combination of two or more. In the present hair dye composition, among these, HC Red 13 and HC Red 3 are preferred, and HC Red 13 is more preferred.

Among the above HC dyes, examples of the HC orange dye include HC Orange 1, HC Orange 2, HC Orange 3, HC Orange 6, and HC Orange 7. These may be used alone or in combination of two or more.

Among the above HC dyes, HC yellow dyes 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, etc. These may be used alone or in combination of two or more. In the present hair dye composition, HC Yellow 4 and HC Yellow 2 are preferred among these, and HC Yellow 4 is more preferred.

Among the above HC dyes, HC blue dyes 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, etc. These may be used alone or in combination of two or more. In the present hair dye composition, among these, 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. preferable.

Among the above HC dyes, examples of the HC purple dye include HC Purple 1, HC Purple 2, HC Purple 3, and HC Purple 4.

The present dye composition may contain only one type of HC dye, which is component B, or may contain two or more types. When using two or more types of HC dyes, you can use HC dyes of the same color system together (e.g., use two or more types of HC red dyes together), or use HC dyes of different color systems together (e.g., HC red dyes). may be used in combination with HC blue dye, etc.). Among these, it is preferable that two or more types of HC dyes are included, and it is more preferable that three or more types of HC dyes are included, regardless of the color system. Furthermore, it is particularly preferable that two or more types of HC dyes having different color systems are included, and it is particularly preferable that three or more types of HC dyes that are different from each other are included.
When a plurality of HC dyes with different color systems are included, two or more HC dyes selected from the group consisting of HC red dye, HC orange dye, HC yellow dye, HC blue dye, and HC purple dye can be used. , HC red dye, HC yellow dye, and HC blue dye. For example, if 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 components are HC Red 13, HC Yellow 4, and HC Blue. It can be at least one selected from the group consisting of 16.

Furthermore, as described above, in the case of containing at least one B component selected from the group consisting of three types of HC dyes, HC red dye, HC yellow dye, and HC blue dye, the combination of HC red dye and HC yellow dye may be used. Combination of two types, combination of two types of HC yellow dye and HC blue dye, combination of two types of HC red dye and HC blue dye, combination of three types of HC red dye, HC yellow dye, and HC blue dye etc. are exemplified.

Furthermore, in the hair dye composition of the present invention, among the above-mentioned dyes, a combination of three types of HC red dye, HC yellow dye, and HC blue dye can be selected as a more preferable embodiment. In this case, it is more preferable to use 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. By using HC Red 13, HC Yellow 4, and HC Blue 16 together as component B in this way, it is possible to compensate for the disadvantages due to the pH dependence of component A, and to supplement the hair dyeing power of component B with component A. As a result, by using these components A and B in combination, it is possible to obtain synergistically excellent hair dyeing power and fading inhibiting effect.

The content of component B is not limited, but when the entire hair dye composition is 100% by mass, the proportion of B (W _B mass%) is preferably 0.01% by mass or more. By setting the proportion of component B to 0.01% by mass or more, the effect of the combined use of component A and component B can be more reliably obtained. This proportion is more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and particularly preferably 0.5% by mass or more.
On the other hand, the proportion of B (W _B mass %) is preferably 20 mass % or less. By setting the proportion of component B to 20% by mass or less, the effect of the combined use of component A and component B can be more reliably obtained. This proportion is more preferably 15% by mass or less, even more preferably 10% by mass or less, and particularly preferably 5% by mass or less.
These upper and lower limit values can be arbitrarily combined. For example, it can be 0.01 to 20% by mass, it can be 0.05 to 15% by mass, it can be 0.1 to 10% by mass, and it can be 0.5 to 5% by mass. be able to.

Although the content ratio of component A and component B is not limited, it is preferable that W _A <W _B be satisfied. That is, it is preferable that the B component is contained in a larger amount than the A component. By satisfying W _A <W _B , the effect of the combined use of component A and component B can be more reliably obtained.

Furthermore, it is preferable that W _A (mass %) and W _B (mass %) satisfy 1<( _WA + W _B )/W _A ≦25. If this quantitative ratio is 25 or less, the effect of the combination of component A and component B can be more reliably obtained. This quantitative ratio [(W _A +W _B )/W _A ] is preferably 1.2 or more, more preferably 2.0 or more. When it is 2.0 or more, the effect of suppressing fading, the effect of suppressing color tone change, and the color familiarity can be further improved. Furthermore, this quantitative ratio is more preferably 3.5 or more, and even more preferably 4.5 or more. When it is 4.5 or more, color matching can be further improved. On the other hand, this quantitative ratio is preferably 20 or less. When it is 20 or less, the hair dyeing power and fading suppressing effect can be further improved. Furthermore, this quantitative ratio can be 15 or less.
These upper and lower limit values can be arbitrarily combined. For example, it can be between 1.2 and 20, between 2.0 and 20, between 3.5 and 15, and between 4.5 and 15.

[3] Component C The present hair dye composition may further contain component C as a dye component in addition to component A and component B. Component C is a basic dye. A basic dye is a cationic dye component that becomes a cation when dissolved in water.
In this specification, a dye having a dye name 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) is a compound called "Basic Orange 31". Since the dye name is a combination of "basic", "color name (orange in this case)", and "number (31 in this case)", it is included in the basic dye in this specification.

By containing component C, it is possible to further improve the hair dyeing power and fading prevention effects obtained by including both component A and component B. Further, by containing the C component, it is possible to exhibit an effect of improving color familiarity and an effect of suppressing color tone change.

As the basic dye of component C, basic red dye (Basic Red), basic orange dye (Basic Orange), basic yellow dye (Basic Yellow), basic green dye (Basic Green), basic blue dye ( Examples include Basic Blue, Basic Violet, Basic Brown, and the like. These may be used alone or in combination of two or more.

Among the above basic dyes, basic red dyes include basic red 1, basic red 2, basic red 22, basic red 46, basic red 51, basic red 76, basic red 118, etc. Can be mentioned. These may be used alone or in combination of two or more. Among these, Basic Red 51 is preferred in the present hair dye composition.

Among the above basic dyes, basic orange dyes include basic orange 1, basic orange 2, basic orange 31, and the like. These may be used alone or in combination of two or more. Among these, Basic Orange 31 is preferred in the present hair dye composition.

Among the above basic dyes, basic yellow dyes include Basic Yellow 11, Basic Yellow 28, Basic Yellow 40, Basic Yellow 57, Basic Yellow 87, and the like. These may be used alone or in combination of two or more. Among these, Basic Yellow 87 is preferred in the present hair dye composition.

Among the above basic dyes, basic green dyes include Basic Green 1, Basic Green 4, and the like. These may be used alone or in combination of two or more.

Among the above basic dyes, basic blue dyes include basic blue 3, basic blue 6, basic blue 7, basic blue 9, basic blue 26, basic blue 41, basic blue 47, and basic blue. Examples include Basic Blue 75, Basic Blue 77, Basic Blue 99, and Basic Blue 124. These may be used alone or in combination of two or more. In the present hair dye composition, among these, Basic Blue 75, Basic Blue 99, and Basic Blue 124 are preferred, and Basic Blue 75 is more preferred.

Among the above basic dyes, basic purple dyes include basic purple 1, basic purple 2, basic purple 3, basic purple 4, basic purple 14, basic purple 16, and the like. These may be used alone or in combination of two or more. Among these, Basic Purple 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. These may be used alone or in combination of two or more. Among these, Basic Tea 16 and Basic Tea 17 are preferred in this hair dye composition.

The present hair dye composition may contain any number of basic dyes as component C. When using two or more types of basic dyes together, you can use basic dyes of the same color system together (such as using two or more types of basic red dyes together), or you can use basic dyes of different color systems together. (A combination of a basic red dye and a basic blue dye, etc.) may also be used. Among these, it is preferable to contain 3 or less types of basic dyes, it is more preferable to contain 2 or less types of basic dyes, and it is preferable to contain only 1 type of basic dyes, regardless of the color system. is even more preferable.
When multiple types of basic dyes are included, as described above, they may be included as basic dyes of the same color system, but it is preferable to include them as two or more types of basic dyes of different color systems. When containing multiple basic dyes with different color systems, the group consisting of basic red dye, basic orange dye, basic yellow dye, basic green dye, basic blue dye, basic purple dye, and basic brown dye Two or more kinds of basic dyes selected from the following can be used.

Among the above, it is preferable to include at least one kind selected from the group consisting of three basic dyes: a basic orange dye, a basic blue dye, and a basic brown dye. In this case, for example, if Basic Orange 31 is selected as the basic orange dye, Basic Blue 75 is selected as the basic blue dye, and Basic Brown 16 and Basic Tea 17 are selected as the basic brown dye, The C component can be at least one selected from the group consisting of Basic Orange 31, Basic Blue 75, Basic Brown 16, and Basic Tea 17. Furthermore, it is preferable that at least one kind selected from the group consisting of two types of basic dyes, a basic orange dye and a basic blue dye, is included. In this case, for example, if Basic Orange 31 is selected as the basic orange dye and Basic Blue 75 is selected as the basic blue dye, the C component is Basic Orange 31 and/or Basic Blue 75. can do.

Furthermore, in the present hair dye composition, from the viewpoint of suppressing unintended skin staining due to adhesion of the hair dye composition, it is preferable that the amount of the basic dye blended is small. In this case, the C component is basic red 51, basic orange 31, basic yellow 87, basic blue 75, basic blue 99, basic blue 124, basic purple 2, basic brown 16, basic brown It can be any one selected from the group consisting of 17. Among these, it is preferable to contain at least one of Basic Orange 31 and Basic Blue 75, and more preferably contain only Basic Orange 31 as the basic dye, or contain Basic Blue 75 as the basic dye. It is more preferable to contain only Basic Orange 31 as a basic dye, and especially preferably to contain only Basic Orange 31 as a basic dye. In the present hair dye composition, the use of Basic Orange 31 or Basic Blue 75 can further improve the hair dyeing power compared to the use of other basic dyes. From the viewpoint of suppressing unintended skin staining due to adhesion of the hair dye composition, it is preferable to use Basic Orange 31 rather than Basic Blue 75.
Incidentally, among the above, when Basic Orange 31 and other basic dyes are used together, the ratio of Basic Orange 31 and other basic dyes is preferably 1:0.1 to 10. Furthermore, among the above, when Basic Blue 75 and other basic dyes are used together, the ratio of Basic Blue 75 to other basic dyes is preferably 1:0.1 to 10.

Although the content of the C component is not limited, it is preferable that the proportion of C (W _C mass %) is 0.001 mass % or more when the entire hair dye composition is 100 mass %. By setting the proportion of the C component to 0.001% by mass or more, the effects associated with the inclusion of the C component can be more reliably obtained. This proportion is more preferably 0.005% by mass or more, and even more preferably 0.01% by mass or more.
On the other hand, the proportion of C (W _C mass %) is preferably 5 mass % or less. By setting the proportion of component C to 5% by mass or less, unintended skin staining due to adhesion of the hair dye composition can be suppressed. This proportion is more preferably 4% by mass or less, even more preferably 3% by mass or less, and particularly preferably 2% by mass or less.
These upper and lower limit values can be arbitrarily combined. For example, it can be 0.001 to 5% by mass, it can be 0.005 to 4% by mass, it can be 0.01 to 3% by mass, and it can be 0.01 to 2% by mass. be able to.

Although the content ratios of component A, component B, and component C are not limited, it is preferable that W _C <W _A <W _B be satisfied. That is, among the A component, the B component, and the C component, it is preferable that the proportion of the C component is the smallest, followed by the smallest proportion of the A component, and the largest proportion of the B component. By satisfying W _C <W _A <W _B , the effect of the combination of A component and B component can be more reliably obtained, and while suppressing unintended skin staining due to adhesion of the hair dye composition, A The combined use of component B and component B can further improve the effects of improving hair dyeing power and inhibiting fading.

Furthermore, it is preferable that W _A (mass %), W _B (mass %), and W _C (mass %) satisfy 1<( _WA + W _B + W _C )/W _C ≦200. If this quantitative ratio is 200 or less, the effect of the combination of the A component and the B component can be obtained more reliably, and the effect of the combination of the A component, the B component, and the C component can be obtained even more reliably. This quantitative ratio [(W _A +W _B +W _C )/W _C ] is preferably 2 or more, more preferably 5 or more, even more preferably 12 or more, and particularly preferably 20 or more. Within these preferable ranges, the effects of suppressing background stains, color familiarity, and suppressing color tone changes can be further improved. On the other hand, this quantitative ratio can be 150 or less, and further can be 100 or less. Within these preferable ranges, hair dyeing power can be further improved.
These upper and lower limit values can be arbitrarily combined. For example, it can be between 2 and 200, between 5 and 200, between 12 and 150, and between 20 and 100.

The present hair dye composition may contain only component A, component B, and component C as dye components, but may contain other dye components other than these as long as the effects of the present invention are not impaired. Other dye components include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, N,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 -Hydroxyethylaminophenol, 4-hydroxypropylamino-3-nitrophenol, 3-methylamino-4-nitrophenoxyethanol, 1-amino-4-methylanthraquinone, 1,4-diaminoanthraquinone, 2-nitro-5 -Glycerylmethylaniline, picramic acid, picric acid, and salts thereof. These may be used alone or in combination of two or more. Other examples include various known acid dyes and various disperse dyes. These may be used alone or in combination of two or more.
When using other dye components, the content thereof is not limited, but the other dye components can be 0.01 to 10 parts by mass with respect to a total of 100 parts by mass of components A, B, and C. .

[4] Solubilizer In addition to components A, B, and C, a solubilizer may be added as component D to the present hair dye composition.
The solubilizer is a component that contributes to solubilizing each component contained in the present hair dye composition. Examples of the solubilizer include water, alcohols, and the like. These may be used alone or in combination of two or more. The use of water is preferable from the viewpoint of exhibiting excellent solubility. Furthermore, it is more preferable to use water and alcohol in combination.

Among the above, examples of alcohols include monohydric alcohols (monohydric aliphatic alcohols, monohydric aromatic alcohols, etc.), polyhydric alcohols, ether alcohols, and the like. These may be used alone or in combination of two or more.

Among the monohydric alcohols, the monohydric aliphatic alcohol preferably has 5 or less carbon atoms, and includes, for example, ethanol, n-propanol, isopropanol, and the like. These may be used alone or in combination of two or more.
Among monohydric alcohols, monohydric aromatic alcohols include benzyl alcohol, 2-phenylethyl alcohol, cinnamyl alcohol, phenylpropanol, 1-phenoxy-2-propanol, phenyl glycol, α-methylbenzyl alcohol, dimethyl Examples include benzyl carbinol, benzyloxyethanol, phenoxyethanol, phenoxyisopropanol, and p-anisyl alcohol. These may be used alone or in combination of two or more.
Furthermore, as the ether alcohol which is a monohydric alcohol and has an ether bond, an ether alcohol having a total of three or more hydroxy groups and ether bonds is preferable, and specifically, ethoxydiglycol (diethylene glycol monoethyl ether), methoxydiglycol (diethylene glycol monomethyl ether), diethylene glycol monobutyl ether, and the like.

Among the above, the monohydric alcohol is preferably an ether alcohol, more preferably an ether alcohol having a total of three or more hydroxy groups and ether bonds, and even more preferably ethoxydiglycol and/or methoxydiglycol. , ethoxydiglycol is particularly preferred.

The valence of the polyhydric alcohol is not limited and may be 6 or more, but from the viewpoint of improving the solubility or dispersibility of the dye component, 2 to 5 valences are preferred. Further, the number of carbon atoms in the polyhydric alcohol is not limited, and if it is a hydrocarbon group, it may have 6 or more carbon atoms, but from the viewpoint of improving solubility or dispersibility for dye components, 2 to 5 is preferred. Specifically, alkanediols such as ethanediol, propanediol, butanediol, and pentanediol; oxydiakanols such as oxydiethanol and oxydipropanol; ethanediol such as ethylene glycol; propane-1,2-diol, trimethylene Propanediol such as glycol; Butanediol such as 1,2-butanediol, 1,3-butanediol, 1,4-butanediol; Isopentyldiol, 1,5-pentanediol, 1,2-pentanediol, etc. Pentanediol; 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.). These may be used alone or in combination of two or more.

Furthermore, examples of ether alcohols that are polyhydric alcohols and have an ether bond include polyalkylene glycols. Examples of polyalkylene glycols include polyethylene glycol. The average molecular weight of polyethylene glycol is not limited, but is usually 100 to 5,000, preferably 100 to 1,000, and more preferably 100 to 800.

Among these, preferred are glycerin, 1,3-butylene glycol, propylene glycol, and polyethylene glycol, more preferred are glycerin and polyethylene glycol, and more preferred is glycerin, from the viewpoint of improving solubility or dispersibility in dye components. Most preferred. By using these, it is possible to obtain the effect of suppressing precipitation of dye components, the effect of improving hair dyeing power, and the effect of suppressing fading. In particular, it is excellent in the effect of improving the solubility of the A component and the B component, and is particularly excellent in the effect of improving the solubility of the A component. Furthermore, the smoothness of the present hair dye composition (smoothness of the agent) can be improved. This can improve the ease with which the present hair dye composition can be applied to hair. That is, the coating properties can be improved. Further, precipitation of component A and component B during long-term storage can be suppressed. Furthermore, the uniformity of the present hair dye composition can be improved. That is, the uniformity of color after dyeing (level dyeing property) can be improved. Moreover, these effects can be effectively exhibited in the packaging materials shown in FIGS. 1 to 3.

When containing alcohol as component D, the amount of alcohol contained in the hair dye composition is not limited, but for example, when the entire hair dye composition is 100% by mass, it should be 25% by mass or less. However, from the viewpoint of dischargeability from the packaging material (container) and prevention of dripping from the hair after application, the amount is preferably 20% by mass or less, more preferably 15% by mass or less, and 10% by mass or less. Particularly preferably less than % by mass. On the other hand, this amount can be 0.01% by mass or more, but from the viewpoint of solubility of the dye components (components A, B, and C), it is preferably 1% by mass or more, and It is more preferably 2% by mass or more, particularly preferably 3% by mass or more.

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

When alcohols are included as component D, the content of alcohols is not limited, but from the viewpoint of the above effects, it is preferably 50 parts by mass or more with respect to 100 parts by mass in total of components A, B, and C, and 100 parts by mass. The amount is more preferably at least 150 parts by mass, even more preferably at least 150 parts by mass, and particularly preferably at least 200 parts by mass. On the other hand, it is usually 5000 parts by mass or less, preferably 3000 parts by mass or less, more preferably 2500 parts by mass or less, and even more preferably 2000 parts by mass or less. These upper and lower limit values can be arbitrarily combined. For example, it can be 50 to 5000 parts by weight, 100 to 3000 parts by weight, 150 to 2500 parts by weight, and 200 to 2000 parts by weight. Within these preferable ranges, the solubility or dispersibility of the dye component can be further improved, and as a result, it contributes to both excellent hair dyeing power and prevention of fading.

[5] pH of hair dye composition
The pH of the present hair dye composition is not limited, and for example, the lower limit can be 4.5. If the pH of the hair dye composition is 4.5 or higher, the combined use of component A and component B can reliably achieve both excellent hair dyeing power and prevention of fading. It is further preferable that this pH is 5.5 or higher. When the pH of the hair dye composition is 5.5 or higher, it is possible to exhibit the effect of improving color compatibility and the effect of suppressing color change. This pH is more preferably 5.7 or higher, and even more preferably 6.2 or higher.

On the other hand, the upper limit of the pH of the present hair dye composition can be, for example, 10.0. If the pH of the hair dye composition is 10.0 or less, the combined use of component A and component B can reliably achieve the effect of achieving both excellent hair dyeing power and prevention of fading. This pH is further preferably 8.8 or less. When the pH of the hair dye composition is 8.8 or less, the hair dyeing power can be further improved compared to when the pH is over 8.8. In addition, it can also have the effect of improving color familiarity. This pH is more preferably 8.5 or less, and even more preferably 8.2 or less.

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

Note that the pH of the hair dye composition is the pH at 25°C. Further, this pH is usually measured using a diluted solution obtained by diluting the stock solution to 10% by mass, but if there is a specific usage situation, the pH is determined as the pH under that usage situation. For example, if the product is used after being diluted with a predetermined amount of water, it means the pH in the diluted state obtained by diluting with the predetermined amount of water. In addition, in the case where a hair dye composition is obtained by mixing the first liquid and the second liquid, it means the pH in the mixed state after the mixing.

[6] Other Components The present hair dye composition may contain other components other than the above-mentioned dye components as necessary. Examples of other components include oily components, water-soluble polymers, surfactants, pH adjusters, preservatives, antioxidants, stabilizers, polypeptides, amino acids, and plant extracts. These may be used alone or in combination of two or more.

(1) Oily component Examples of the oily component include higher alcohols, hydrocarbons, fats and oils, waxes, higher fatty acids, esters, silicones, fluorine oils, alkyl glyceryl ethers, and the like. These may be used alone or in combination of two or more. The oily component can be blended, for example, for the purpose of imparting a moist feeling to the hair.

As the higher alcohol, alcohol having a carbon chain having 6 or more carbon atoms can be used. For example, higher alcohols having 8 to 40 carbon atoms are included. Moreover, the skeleton may be saturated or unsaturated, and may be linear or branched. Specifically, cetearyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, arachyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl. Examples include alcohol, linoleyl alcohol, linolenyl alcohol, lanolin alcohol, phytosterol, cholesterol, and the like. These may be used alone or in combination of two or more.

Hydrocarbons include liquid paraffin, liquid isoparaffin, paraffin (paraffin wax), olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, synthetic squalane, squalene, squalane (hydrogenated squalene), polybutene, polyethylene (polyethylene wax), micro Examples include crystalline wax, petrolatum, ozokerite, ceresin, limonene, and turpentine oil. These may be used alone or in combination of two or more.

Examples of the fats and oils include vegetable oils (vegetable fats and oils), animal oils (animal fats and oils), and the like. These may be used alone or in combination of two or more. Among these, vegetable oils include macadamia seed oil, meadowfoam oil, jojoba seed oil, rice germ oil, sunflower seed oil, olive oil, grape seed oil, almond oil, apricot kernel oil, peach kernel oil, persic oil, shea butter, and rose oil. Hip oil, camellia oil, tea seed oil, sasanqua oil, argania spinosa kernel oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, cacao butter, corn oil, peanut oil, rapeseed oil, evening primrose oil, rice bran oil , rice germ oil, wheat germ oil, adlay oil, avocado oil, carrot oil, castor oil, linseed oil, coconut oil, palm oil, and the like. Further, examples of animal oils include beef tallow, lard, mink oil, egg yolk oil, and the like.

Examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, spermaceti wax, rice bran wax, sugarcane wax, palm wax, montan wax, cotton wax, bayberry wax, privet wax, kapok wax, shellac wax, and the like. These may be used alone or in combination of two or more.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, lanolin fatty acid, etc. It will be done. These may be used alone or in combination of two or more.

Esters include isodecyl neopentanoate, isostearyl neopentanoate, 2-octyldodecyl neopentanoate, hexyldecyl neodecanoate, octyldodecyl neodecanoate, isostearyl isostearate, isopropyl isostearate, ethyl isostearate, octyldodecyl isostearate, isostearin. hexyl acid, 2-hexyldecyl isostearate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, octyl isopalmitate, isostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, 2- Cetyl ethylhexanoate, cetostearyl 2-ethylhexanoate, 2-hexyldecyl 2-ethylhexanoate, isostearyl 12-stearoylstearate, isocetyl 12-stearoylstearate, octyldodecyl 12-stearoylstearate, di-2- Ethylene glycol ethylhexanoate, N-alkyl glycol monoisostearate, pentaerythrityl tetraethylhexanoate (pentaerythrityl tetraoctoate), cetyl octoate, isononyl isononanoate, pentaerythritol tetraisostearate, isopropyl myristate, palmitic acid Isopropyl, octyldodecyl myristate, diisopropyl adipate, diisobutyl adipate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, stearyl stearate, myristyl myristate, 2-octyldodecyl myristate, isotridecyl myristate, propylene glycol isostearate , glyceryl tri-2-ethylhexanoate, propylene glycol myristate-3benzyl ether monostearate propylene glycol, propylene glycol monolaurate, polyglyceryl isostearate, octyldodecyl ricinoleate, hydrogenated castor oil isostearate, C10-C30 fatty acid cholesteryl/lanosteryl , cetyl lactate, lanolin acetate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester (dipentaerythritol fatty acid ester), cetyl caprate, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, etc. can be used. These may be used alone or in combination of two or more.

Examples of silicones include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, highly polymerized silicone with an average degree of polymerization of 650 to 10,000, and polyether. Modified silicones, amino-modified silicones such as aminoethylaminopropylsiloxane/dimethylsiloxane copolymer (amodimethicone), betaine-modified silicones, alkyl-modified silicones, alkoxy-modified silicones, mercapto-modified silicones, carboxy-modified silicones, fluorine-modified silicones, etc. It will be done.

Among the above, higher alcohols, hydrocarbons, oils and fats, silicones, etc. can be suitably used as the oily component in this hair dye composition. Furthermore, as the higher alcohol, cetanol and stearyl alcohol can be suitably used. Moreover, mineral oil can be suitably used as the hydrocarbon. Further, as the oil or fat, vegetable oil can be suitably used. Moreover, dimethicone can be suitably used as the silicone.
When containing an oily component, its content is not limited, but it can be 1% by mass or more, and can be 5% by mass or more, based on 100% by mass of the entire hair dye composition. Further, it is usually 50% by mass or less.

(2) Water-soluble polymers Examples of water-soluble polymers include water-soluble natural polymers, water-soluble semi-synthetic polymers, water-soluble synthetic polymers, and water-soluble inorganic polymers. These may be used alone or in combination of two or more. A water-soluble polymer can be added, for example, for the purpose of adjusting the viscosity of the present hair dye composition.

Natural water-soluble polymers include guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, gum tragacanth, pectin, mannan, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, casein, and albumin. , collagen, dextrin, etc. These may be used alone or in combination of two or more.

Examples of semi-synthetic water-soluble polymers include cellulose-based water-soluble polymers, cationized guar gum, starch phosphate, alginate propylene glycol ester, alginates, and the like. These may be used alone or in combination of two or more.
Examples of cellulose-based water-soluble polymers include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylcellulose dimethyldiallylammonium chloride, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, and cationized cellulose. These may be used alone or in combination of two or more.

Synthetic water-soluble polymers include polyvinyl alcohol (PVA), polyvinyl butyral, polyvinyl methyl ether, carboxyvinyl polymer, sodium polyacrylate, polyacrylamide, polyethylene oxide, ethylene oxide/propylene oxide block copolymer, acrylic acid/ Examples include alkyl acrylate copolymers, polydimethylmethylenepiperidinium chloride, polyethylene glycol, and highly polymerized polyethylene glycol. In addition, a copolymer consisting of a half ester of itaconic acid and POE alkyl ether, an ester of methacrylic acid and POE alkyl ether, and at least one monomer selected from acrylic acid, methacrylic acid, and their alkyl esters. can be mentioned. These may be used alone or in combination of two or more.

Among the above, semi-synthetic water-soluble polymers can be suitably used as the water-soluble polymer in the present hair dye composition. Further, as the semi-synthetic water-soluble polymer, a cellulose-based water-soluble polymer can be suitably used. By using cellulose-based water-soluble polymers, ease of application to hair can be improved. That is, the coating properties can be improved. Moreover, the uniformity of the present hair dye composition can be improved. That is, the uniformity of color after dyeing (level dyeing property) can be improved. Moreover, these effects can be obtained regardless of the moisture content of the hair to which it is applied, and in particular, the applicability and uniformity to dry hair (hair that has not been moistened) can be improved. Furthermore, among these cellulose-based water-soluble polymers, hydroxyethyl cellulose can be particularly preferably used.
If a water-soluble polymer is included, its content is not limited, but it can be 0.01% by mass or more, and should be 0.1% by mass or more, based on 100% by mass of the entire hair dye composition. I can do it. Further, it is usually 10% by mass or less.

(3) Surfactant Examples of the surfactant include cationic surfactants, anionic surfactants, amphoteric surfactants, and nonionic surfactants. These may be used alone or in combination of two or more. The surfactant can be blended for the purpose of stably containing dye components, oil components, etc. in the present hair dye composition, for example.

Examples of cationic surfactants include monoalkyl type quaternary ammonium salts, dialkyl type quaternary ammonium salts, trialkyl type quaternary ammonium salts, benzalkonium type quaternary ammonium salts, monoalkyl ether type quaternary ammonium salts, etc. Amine salts such as alkyl quaternary ammonium salts, alkyl amine salts, fatty acid amide amine salts, ester-containing tertiary amine salts, Arcobel type tertiary amine salts, cyclic quaternary ammonium salts such as alkyl pyridinium salts, alkyl isoquinolium salts, Examples include benzethonium chloride. These may be used alone or in combination of two or more.

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

Monoalkyl type quaternary ammonium salts include behenyltrimethylammonium chloride (behentrimonium chloride), lauryltrimethylammonium chloride, lauryltrimethylammonium bromide, alkyl(16,18)trimethylammonium chloride, cetyltrimethylammonium chloride (cetrimonium chloride). ), cetyltrimethylammonium bromide, cetyltrimethylammonium saccharin, stearyltrimethylammonium chloride (stearyltrimonium chloride), stearyltrimethylammonium bromide, cetyltrimethylammonium saccharin, stearyltrimethylammonium saccharin, distearyldimethylammonium chloride (distearyldimonium) chloride), alkyl(28) trimethylammonium chloride, diPOE(2) oleylmethylammonium chloride, diPOEstearylmethylammonium chloride, POE(1)POP(25) diethylmethylammonium chloride, POPmethyldiethylammonium chloride, methacryloyloxy chloride Examples include ethyltrimethylammonium, dicokoyldimethylammonium chloride, ethylsulfate lanolin fatty acid aminopropylethyldimethylammonium, and methylsulfate behenyltrimethylammonium. These may be used alone or in combination of two or more.

Examples of anionic surfactants include alkyl ether sulfates, POE alkyl ether sulfates, alkyl sulfates, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, and alkyl sulfates. Alternatively, alkenyl ether carboxylates, α-sulfone fatty acid salts, N-acylamino acid type surfactants, phosphoric acid mono- or diester type surfactants, sulfosuccinates, and the like can be mentioned. These may be used alone or in combination of two or more. Counter ions for the anion groups of these surfactants include sodium ions, potassium ions, triethanolamine, and the like. These may be used alone or in combination of two or more.

That is, for example, disodium lauryl sulfosuccinate, sodium lauryl sulfate, sodium myristyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, POE sodium lauryl ether sulfate, POE sodium lauryl ether sulfate. Ethanolamine, POE ammonium lauryl ether sulfate, POE sodium stearyl ether sulfate, disodium lauryl sulfosuccinate, sodium stearoylmethyltaurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecene sulfonate, sodium lauryl phosphate, POE lauryl ether phosphate and Its salts, N-lauroylglutamates (sodium lauroylglutamate, etc.), N-lauroylmethyl-β-alanine salts, N-acylglycine salts, N-acylglutamates, higher fatty acids lauric acid, myristic acid, and higher fatty acids thereof Examples include salts of fatty acids. These may be used alone or in combination of two or more.

Examples of the amphoteric surfactant include amino acid type amphoteric surfactants and betaine type amphoteric surfactants. Among these, amino acid type amphoteric surfactants include N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium (sodium lauroamphoacetate), 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolyte, Nium betaine, undecylhydroxyethylimidazolinium betaine sodium, alkyldiaminoethylglycine hydrochloride, N-coco fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine sodium, N-coco fatty acid acyl-N'- Carboxyethoxyethyl-N'-carboxyethylethylenediamine disodium, N-coconut oil fatty acid acyl-N'-carboxymethoxyethyl-N'-carboxymethylethylenediamine disodium, sodium lauryldiaminoethylglycine, palm oil fatty acid acyl-N-carboxy Glycine-type amphoteric surfactants such as sodium ethyl-N-hydroxyethylethylenediamine; aminopropionic acid-type amphoteric surfactants such as sodium lauryl aminopropionate, sodium lauryl amino dipropionate, and triethanolamine lauryl aminopropionate; etc. Can be mentioned. These may be used alone or in combination of two or more.

Betaine-type amphoteric surfactants include coconut oil alkyl betaine, lauryldimethylaminoacetate betaine, myristyldimethylaminoacetate betaine, stearyldimethylaminoacetate betaine, sodium stearyldimethylbetaine, coconut oil fatty acid amidopropyl betaine, and palm oil fatty acid amidopropyl betaine. , aminoacetic acid betaine type amphoteric surfactants such as lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, and stearyl dihydroxyethyl betaine; and sulfobetaine type amphoteric surfactants such as lauryl hydroxysulfobetaine. These may be used alone or in combination of two or more.

Examples of the nonionic surfactant include ether type nonionic surfactants, ester type nonionic surfactants, alkyl glucosides, and the like. These may be used alone or in combination of two or more.

Examples of ether-type nonionic surfactants include POE (5.5) cetyl ether, POE (6) 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) POE cetyl ether (cetheth) such as cetyl ether, POE (5) cetyl ether; POE (20) stearyl ether, POE (150) stearyl ether, POE (4) stearyl ether, POE (5) stearyl ether, POE ( 2) POE stearyl ether (steareth) such as stearyl ether; POE (10) behenyl ether, POE (20) behenyl ether, POE (30) behenyl ether, POE (150) behenyl ether, POE (2) behenyl ether, POE ( 3) POE behenyl ethers (behenes) such as behenyl ether, POE (5) behenyl ether, POE (6) behenyl ether; POE (7) oleyl ether, POE (10) oleyl ether, POE (15) oleyl ether, POE ( 20) POE oleyl ether (oles) such as oleyl ether, POE (50) oleyl ether, POE (2) oleyl ether, POE (3) oleyl ether; POE (4.2) lauryl ether, POE (9) lauryl ether, POE lauryl ether (laureth) such as POE (10) lauryl ether, POE (21) lauryl ether, POE (25) lauryl ether, POE (2) lauryl ether, POE (3) lauryl ether; POE (2) myristyl ether; POE myristyl ether such as POE (3) myristyl ether; POE octyl dodecyl ether such as POE (2) octyl dodecyl ether, POE (5) octyl dodecyl ether; POE (2) hexyl decyl ether, POE (4) hexyl decyl ether, etc. POE hexyldecyl ether; POE isostearyl ether such as POE (5) isostearyl ether; POE nonylphenyl ether; POE octylphenyl ether; POE (10) POP (4) cetyl ether; POE (20) POP (4) cetyl POE polyoxypropylene such as ether, POE (20) POP (8) cetyl ether, POE (1) POP (4) cetyl ether, etc.; POE polyoxypropylene such as POE (12) POP (6) decyltetradecyl ether; Examples include decyltetradecyl ether. These may be used alone or in combination of two or more.

Ester-type nonionic surfactants include POE sorbitan fatty acid esters such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, and POE sorbitan trioleate; POE sorbitan monostearate; Examples include glyceryl monofatty acid esters such as glycerin and POE glycerin monomyristic acid; POE sorbitol fatty acid esters such as POE sorbitol tetraoleate, POE sorbitol hexastearate, and POE sorbitol 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. In addition, 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 lipophilic monoolein. Acid glycerin, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose Fatty acid esters, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate, POE-reduced lanolin, and the like can be mentioned. These may be used alone or in combination of two or more.

Among the above, a cationic surfactant can be suitably used as the surfactant in this hair dye composition. In particular, the present hair dye composition can be used as a color treatment that has a conditioning effect in addition to a hair dyeing effect. In this case, it is preferable to use a cationic surfactant from the viewpoint of conditioning effect.

In addition, in the present hair dye composition, among the cationic surfactants, monoalkyl type quaternary ammonium salts can be preferably used, and furthermore, monoalkyl type quaternary ammonium salts can be preferably used. Furthermore, behentrimonium chloride, cetrimonium chloride, etc. can be suitably used.
When a surfactant is included, its content is not limited, but it can be 0.1% by mass or more, and can be 1% by mass or more, based on 100% by mass of the hair dye composition as a whole. Further, it is usually 10% by mass or less.

(4) pH adjuster As the pH adjuster, an acid and/or a base can be used.
Examples of acids include organic acids, inorganic acids, and salts thereof.
Among these, examples of organic acids include malic acid, pyrrolidonecarboxylic acid, succinic acid, citric acid, tartaric acid, lactic acid, amino acids, and organic sulfonic acids. Furthermore, examples of amino acids include glutamic acid and arginine. Furthermore, examples of organic sulfonic acids include taurine and the like.
On the other hand, examples of inorganic acids include phosphoric acid, hydrochloric acid, sulfuric acid, and boric acid.
Further, examples of the salt include the above-mentioned organic acid salts and inorganic acid salts. More specific examples include alkali metal salts and ammonium salts. Among these, examples of the alkali metal species constituting the alkali metal salt include sodium, potassium, and the like.
These various acids may be used alone or in combination of two or more.

Examples of the base include organic bases, inorganic bases, and salts thereof.
Among these, examples of the organic base include organic amines, basic amino acids (arginine, lysine, salts thereof, etc.), guanidine and salts thereof (guanidine carbonate, etc.). Specifically, monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, aminomethylpropanol (2-amino-2-methyl-1-propanol, etc.), aminomethylpropanediol (2-amino-2-methyl- Examples include alkanolamines such as 1,3-propanediol (1,3-propanediol, etc.), and alkylamines such as isopropylamine. These organic bases may be used alone or in combination of two or more.
On the other hand, examples of the inorganic base include hydroxide, chloride, silicate, carbonate, hydrogen carbonate, metasilicate, phosphate, sulfate, ammonia, and the like. Specifically, alkali metal hydroxides such as sodium hydroxide, alkali metal carbonates such as sodium carbonate, alkali metal hydrogen carbonates such as sodium hydrogen carbonate, alkaline earth metal waters such as magnesium hydroxide and calcium hydroxide. Examples include oxides, alkaline earth metal carbonates such as magnesium carbonate and calcium carbonate. These inorganic bases may be used alone or in combination of two or more.

When a pH adjuster is included, it is sufficient as long as it can adjust the pH to the desired level or provide a buffering effect to the desired pH range, and its content is not limited, but for example, the total content of the hair dye composition is 100% by mass. In this case, it can be 0.001% by mass or more, and can be 0.01% by mass or more. Further, it is usually 10% by mass or less.

(5) Preservatives Examples of preservatives include phenoxyethanol, methylparaben, ethylparaben, propylparaben, isopropylparaben, butylparaben, isobutylparaben, and sodium benzoate. These may be used alone or in combination of two or more. Among these, phenoxyethanol can be suitably used in the present hair dye composition.
If a preservative is included, its content is not limited, but it can be 0.01% by mass or more, and can be 0.1% by mass or more, based on 100% by mass of the entire hair dye composition. . Further, it is usually 3% by mass or less.

(6) Antioxidant Examples of the antioxidant include ascorbic acid (L-ascorbic acid), anhydrous sodium sulfite, and the like. These may be used alone or in combination of two or more.

(7) Stabilizer Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, and the like. These may be used alone or in combination of two or more.

(8) Polypeptides Examples of polypeptides include animal proteins, vegetable proteins, hydrolyzed products thereof (hydrolyzed proteins), cationized hydrolyzed proteins, and the like. These may be used alone or in combination of two or more.
Among these, examples of animal proteins include keratin, collagen, silk, conchiolin, elastin, fibroin, casein, gelatin, and the like. These may be used alone or in combination of two or more. Examples of vegetable proteins include vegetable proteins (soybean protein, wheat protein, barley protein, oat protein, almond protein) obtained from plants such as soybeans, wheat, barley, oats, and almonds.
Furthermore, hydrolyzed proteins include components obtained by hydrolyzing the above-mentioned various proteins with acids, alkalis, enzymes, and the like. Further, the cationized hydrolyzed protein includes a component obtained by cationizing a hydrolyzed protein with a denaturing agent, a component obtained by hydrolyzing a previously denatured cationized protein, and the like. Further, examples of the hydrolyzed protein include hydrolyzed keratin, hydrolyzed collagen, hydrolyzed silk, hydrolyzed conchiolin, and hydrolyzed soybean protein. These may be used alone or in combination of two or more.

(9) Amino acids Amino acids and salts thereof such as aspartic acid, glutamic acid, glycine, alanine, theanine, arginine, histidine, and threonine; amino acid analogue compounds such as taurine; and the like. These may be used alone or in combination of two or more. By using these amino acids, for example, the shine of hair can be improved.

(10) Plant extracts Plant extracts include avocado extract, amacha extract, aloe extract, apricot extract, apricot kernel extract, ginkgo biloba extract, fennel extract, turmeric extract, scutellaria extract, scutellaria extract, hypericum extract, orange extract, perforatum extract, Chamomile extract, chamomile extract, licorice extract, gardenia extract, kumazasa extract, grapefruit extract, mulberry extract, lingonberry extract, burdock extract, bamboo grass extract, hawthorn extract, sagebrush extract, mallow extract, rhododendron extract, perilla extract, linden extract, peony extract, ginger Extract, birch extract, horsetail extract, sage extract, hawthorn extract, thyme extract, tea extract, clove extract, dokudami extract, hibiscus extract, hamamelis extract, parsley extract, loquat extract, loofah extract, safflower extract, peppermint extract, bodega extract, hops Extract, pine extract, horse chestnut extract, soapberry extract, eucalyptus extract, yuzu extract, yokuinin extract, mugwort extract, lychee extract, lavender extract, apple extract, lemon extract, astragalus extract, rose extract, rosemary extract, Roman chamomile extract, etc. . These may be used alone or in combination of two or more.

In addition to the above, there are also fragrances, sugars (maltose, glycosyltrehalose, N-acetylglucosamine, etc.), inorganic salts (sodium chloride, sodium carbonate, etc.), buffers (sodium phosphate, etc.), chelating agents (edetic acid and its salts, diethylenetriaminepentaacetic acid and its salts, hydroxyethane diphosphonic acid and its salts, etc.), vitamins, fragrances, colorants, and ultraviolet absorbers, as well as the "Standards for Quasi-drug Ingredients" (published in June 2006, Pharmaceutical Affairs It can contain at least one component selected from those listed in Nipposha). These may be used alone or in combination of two or more.

[7] Form/Usage of Hair Dye Composition The form of the present hair dye composition (form at 25°C) is not limited and can be selected as appropriate depending on the use and purpose. For example, cream, emulsion ( It can be in the form of an emulsion), a dispersion, a paste, a foam, a liquid, an aqueous solution, a gel, a solid, etc. Furthermore, the present composition may be used as a single-drug formulation, or may be used as a multi-drug formulation divided into two or more drugs. Furthermore, in the case of a multi-drug formula, the drugs may be mixed together before use, or may be used individually one after the other.

When the present hair dye composition is in liquid form, its viscosity is not limited and can be, for example, 1,000 to 60,000 mPa·s, and the lower limit thereof is preferably 5,000 mPa·s or more. When the viscosity is 5000 mPa·s or more, dripping after application is suppressed and adhesion to hair is increased, making it easier to dye hair. This lower limit is more preferably 10,000 mPa·s or more, and still more preferably 15,000 mPa·s or more. On the other hand, the upper limit of this viscosity is preferably 50,000 mPa·s or less. By having a viscosity of 5000 mPa·s or less, the hair dye composition can be easily spread and spread during application. This upper limit is more preferably 40,000 mPa·s or less, and still more preferably 30,000 mPa·s or less. These upper and lower limit values can be arbitrarily combined. For example, it can be 5,000 to 50,000 mPa·s, 10,000 to 40,000 mPa·s, and 15,000 to 30,000 mPa·s.
Examples of viscous liquid include cream-like, emulsion-like (milk lotion-like), paste-like, and gel-like properties. When it is in such a viscous liquid state, it can be discharged from a tube or a pump, for example, and can be made into a tube-type or pump-type product.
The viscosity is measured using a B-type viscometer at 25° C. and 12 rpm for 1 minute using a No. 4 rotor (suitable for measurement in the range of 5,000 to 50,000 mPa·s).

Among the above, when the present hair dye composition is in a viscous liquid state and a tube-type packaging material is used, it is preferable to use the packaging materials shown in FIGS. 1 to 3.
This packaging material 1 includes a main body part 2 that accommodates the present hair dye composition as a content, and a nozzle part 4 for discharging the content. Furthermore, a lid fixing part 3 for fixing the lid 5 can be provided between the main body part 2 and the nozzle part 4. Furthermore, as shown in FIGS. 1 to 3, when using a screw structure as the lid fixing part 3, the lid fixing part 3 is formed into a convex screw shape, and is screwed into the corresponding part of the lid 5. By providing a concave screw shape as the groove, they can be screwed together.
In such tube-type packaging materials, as shown in Figures 1 to 3, the nozzle part has a tapered shape to make it easier to discharge viscous liquids and dispense the appropriate amount. can be taken. Moreover, the nozzle part can be brought into contact with the hair as it is, and an appropriate amount can be ejected at the location where hair dyeing is desired. In other words, it can be easily used for retouching purposes.

The uses of this hair dye composition are not limited, and can be used as cleaning agents, hair care agents, temporary coloring agents, hair styling agents, etc. Shampoos, rinses, conditioners, treatments, color creams, color sprays, hair mascaras, color waxes, etc. , a pre-treatment agent, a post-treatment agent, etc., but it is particularly preferable to use it as a color treatment, a color conditioner, a color rinse, a color shampoo, etc. According to these, the present composition can be applied to hair during daily hair care, and as a result, hair dyeing can be continuously performed by repeating the hair dyeing process. Among the above, the present hair dye composition is particularly suitable for use as a color treatment, a color conditioner, a color rinse, etc., which have a hair conditioning effect in addition to a hair dyeing effect.

The present hair dye composition may be applied to wet hair with water or warm water, or may be applied to dry hair. Further, after application, it may or may not be rinsed off, but it is preferable to rinse it off. Furthermore, the method of applying the present hair dye composition to hair is not limited, and can be applied by hand combing, spraying, comb or brushing, and the like.
Among these, from the viewpoint of ease of application (good spreadability, etc.), it is preferable to apply the hair dye composition to wet hair, but it is difficult to obtain high hair dyeing power. From this point of view, it is more preferable to apply it to dry hair. At that time, the application can be performed according to a normal treatment or rinse method. After the hair dye composition is applied to the hair, it can be left undisturbed for a predetermined period of time. Thereafter, the composition applied to the hair can be rinsed with hot water according to a conventional method. Furthermore, the hair can be dried according to conventional methods.

The present hair dye composition may be applied to any type of hair. In other words, it can be applied to black hair, white hair, bleached hair (black hair treated with bleach), dyed hair, etc., but application to gray hair and/or dyed hair will result in the hair dyeing effect. Suitable from the point of view.
That is, application to dyed hair includes repairing, changing, adding, etc. the color of dyed hair. Such usage is called, for example, retouching. That is, the present hair dye composition has properties suitable for retouching applications, since it has excellent hair dyeing power and fading prevention, and is especially excellent in color matching and tone change inhibiting effect.

Hereinafter, the present invention will be explained in more detail based on Examples, but these Examples are merely examples shown for convenience for explanation, and the present invention is not limited to these Examples in any way. It's not something you can do.

[1] Preparation of hair dye composition Hair dye compositions of Examples 1 to 21 and Comparative Examples 1 to 2 were prepared by mixing the components shown below in the mass proportions shown in Tables 1 to 4. The preparation method is as follows.

(1) Preparation method The hair dye compositions of Examples 1 to 21 and Comparative Examples 1 to 2 were all one-part hair dye compositions containing all the ingredients at once, and were obtained by the following procedure. That is, each component other than dimethicone was put into a container and emulsified at 80°C to obtain an emulsion. Thereafter, dimethicone was added to the obtained emulsion, and purified water was added and mixed to make a total of 100%, and the hair dyes of Examples 1 to 21 and Comparative Examples 1 to 2, which are creamy emulsions, were mixed. A composition was obtained. For the mixing, a mixer "Emulsification Tester Model ET-3A" (manufactured by Nikko Chemicals) was used.

(2) Details of components Each component shown in Tables 1 to 4 is 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
・Basic tea 16
・Basic tea 17

[Component D] Solubilizer ・Glycerin ・Ethoxydiglycol ・PEG400 (Polyethylene glycol)
・Benzyl alcohol ・1,3-butylene glycol ・Propylene glycol

[Base part]
・Cetanol ・Stearyl alcohol ・Mineral oil ・Behentrimonium chloride ・Cetrimonium chloride ・HEC: Hydroxyethyl cellulose ・Fragrance ・Dimethicone ・Phenoxyethanol ・Sodium hydroxide: pH adjustment

[2] Evaluation of hair dye composition (1) Hair dyeing treatment Hair dyeing treatment was performed according to the following procedure.
(1-2) Hair dyeing treatment Add 1 portion of shampoo (Bigen Treatment Shampoo, manufactured by Hoyu Co., Ltd.) to a 10 cm long sample of white hair bundles for evaluation (manufactured by Beaulux Co., Ltd.) (hereinafter simply referred to as hair bundles). After application, each hair dye composition of Examples 1 to 21 and Comparative Examples 1 to 2 was applied with a brush so that 1 g of the hair dye composition was applied to 1 g of hair strands, and then applied to the hair strands. After 5 minutes, the composition adhering to the hair tresses was washed away with water. Subsequently, the hair bundle was dried with warm air. This operation was repeated three times to obtain each dyed hair bundle.

(1-3) Evaluation of hair dyeing power The dyed hair bundles obtained up to (1-2) above were visually observed by a panelist specializing in hair dye evaluation under a standard light source, and the hair dyes of each example were visually observed. The intensity of staining caused by the composition was evaluated.
Before the evaluation, all panelists evaluated the standard sample, standardized each score of the evaluation criteria, and then objectively evaluated the results by 10 panelists. The evaluation was based on the four-level criteria shown in 1 to 4 below and the corresponding scores. Furthermore, the evaluation was performed by each panelist selecting one value closest to their own evaluation from among the ratings.

4: Very well dyed 3: Well dyed 2: Slightly dyed 1: Slightly dyed

After that, calculate the average value of the ratings of all panelists, and if the average value is 3.5 points or more, "Excellent: 5", if the average value is 3 points or more and less than 3.5 points, "Good: 4", and 2.5 points or more and 3 points. The evaluation results were as follows: less than 2 points as "fair: 3", 2 points or more but less than 2.5 points as "slightly poor: 2", and less than 2 points as "poor: 1". The results are shown in the "hair dyeing power" column of Tables 1 to 3.

(1-4) Evaluation of color blending A 10 cm long bundle of mixed white and black hair for evaluation (30% white human hair MIX: manufactured by Beaulux) was treated in the same manner as in (1-2) above. A dyed hair bundle was obtained. The resulting dyed hair tresses were visually observed by a panelist specializing in hair dye evaluation under a standard light source, and the color blending of each hair dye composition was evaluated.
Before the evaluation, all panelists evaluated the standard sample, standardized each score of the evaluation criteria, and then objectively evaluated the results by 10 panelists. The evaluation was based on the four-level criteria shown in 1 to 4 below and the corresponding scores. Furthermore, the evaluation was performed by each panelist selecting one value closest to their own evaluation from among the ratings.

4: Colors other than brown and black are hardly observed 3: Colors other than brown and black are hardly observed 2: Colors other than brown and black are observed 1: Colors other than brown and black are observed. noticeable

After that, calculate the average value of the ratings of all panelists, and if the average value is 3.5 points or more, "Excellent: 5", if the average value is 3 points or more and less than 3.5 points, "Good: 4", and 2.5 points or more and 3 points. The evaluation results were as follows: less than 2 points as "fair: 3", 2 points or more but less than 2.5 points as "slightly poor: 2", and less than 2 points as "poor: 1". The results are shown in the "Color familiarity" column of Tables 1 to 3.
The evaluation of color blending is, for example, an evaluation that can measure whether gray hair dyed with a hair dye composition blends in with surrounding black hair without causing discomfort in a situation where gray hair is sparsely generated within black hair. It is. That is, for example, even if the hair is sufficiently dyed, if a color other than brown or black is strongly recognized, the dyed gray hair will not blend in with the surrounding black hair and will stand out. It is preferable to use a hair dye composition that can dye hair in a manner that minimizes such situations. That is, in evaluating color familiarity, it is preferable that colors other than brown and black be recognized.

(1-5) Evaluation of fading inhibition After completing the evaluation of hair dye power and color compatibility, hair separated from the dyed hair bundles obtained up to (1-2) above was heated to 50°C. % Na lauryl sulfate aqueous solution for 15 minutes, then rinse off the 1% Na lauryl sulfate aqueous solution with water, then perform treatment (Bigen Treatment Rinse manufactured by Hoyu Co., Ltd.) and wash with water, then wipe the moisture from the hair bundle with a towel. , Dry with a hairdryer. This operation was repeated seven times to obtain hair bundles for evaluation of fading inhibition in each example.
The dyed hair bundles obtained up to (1-2) above and the hair bundles for fading suppression evaluation were visually observed by a panelist specializing in hair dye evaluation under a standard light source, and each example before and after the treatment was examined. The state of fading was evaluated. Before the evaluation, all panelists evaluated the standard sample, standardized each score of the evaluation criteria, and then objectively evaluated the results by 10 panelists. The evaluation was based on the four-level criteria shown in 1 to 4 below and the corresponding scores. Furthermore, the evaluation was performed by each panelist selecting one value closest to their own evaluation from among the ratings.

4: Almost no discoloration is observed 3: Very little discoloration is observed 2: Discoloration is observed 1: Significant discoloration is observed

After that, calculate the average value of the ratings of all panelists, and if the average value is 3.5 points or more, "Excellent: 5", if the average value is 3 points or more and less than 3.5 points, "Good: 4", and 2.5 points or more and 3 points. The evaluation results were as follows: less than 2 points as "fair: 3", 2 points or more but less than 2.5 points as "slightly poor: 2", and less than 2 points as "poor: 1". The results are shown in the "Suppression of fading" column in Tables 1 to 3.
In addition, in the evaluation of fading suppression, whether or not the dyed state of the hair bundle is recognized to have changed from a dark state to a lighter state before and after the above-mentioned washing operation (if there is no change, the dyed state is maintained). ), and if it is recognized that there has been a change, the extent of the change has been evaluated. Further, the change at this time does not include a change in color. The change in color tone is attributed to the evaluation of color tone change suppression. For example, a case where the effect of suppressing color tone change is low while suppressing fading is excellent, means that although the deep dyed state is maintained, the color tone has changed due to the removal of a specific dye.

(1-6) Evaluation of Suppression of Color Tone Change The hair bundles obtained up to (1-5) above for evaluation of inhibition of fading were used as they were as hair bundles for evaluation of inhibition of color change. Then, the dyed hair bundles obtained up to (1-2) above and the hair bundles for color tone change suppression evaluation were visually observed by a panelist specializing in hair dye evaluation under a standard light source. The color change caused by the hair dye composition was evaluated.
Before the evaluation, all panelists evaluated the standard sample, standardized each score of the evaluation criteria, and then objectively evaluated the results by 10 panelists. The evaluation was based on the four-level criteria shown in 1 to 4 below and the corresponding scores. Furthermore, the evaluation was performed by each panelist selecting one value closest to their own evaluation from among the ratings.

4: Almost no change in color tone is observed 3: No change in color tone is observed 2: A change in color tone is observed 1: A significant change in color tone is observed

After that, calculate the average value of the ratings of all panelists, and if the average value is 3.5 points or more, "Excellent: 5", if the average value is 3 points or more and less than 3.5 points, "Good: 4", and 2.5 points or more and 3 points. The evaluation results were as follows: less than 2 points as "fair: 3", 2 points or more but less than 2.5 points as "slightly poor: 2", and less than 2 points as "poor: 1". The results are shown in the "color tone change" column of Tables 1 to 3.
In addition, in the evaluation of color tone change suppression, whether or not it is recognized that the color tone of the hair bundle has changed before and after the above-mentioned washing operation (if there is no change, the color tone is maintained), If it is recognized as such, the degree has been evaluated. Further, the change at this time does not include shading. Changes in shading are attributed to evaluation of fading inhibition. In addition, hair dye compositions are usually used repeatedly to dye hair, so if the color changes due to washing, it may affect the color compatibility after repeated use, so it is preferable to suppress changes in color. .

(2) Evaluation of scalp stains (2-1) Dyeing of the scalp Apply 0.1 g of the hair treatment composition of each example to an area approximately 1 cm in diameter on the inside of the dry forearm of the evaluation model (healthy adult). After applying it in a circular shape and leaving it for 5 minutes, it was washed with water. Furthermore, the applied area was washed twice using Bigen Treatment Shampoo Composition manufactured by Hoyu Co., Ltd.

(2-2) Evaluation of scalp stains The scalp after dyeing obtained in (2-1) above was visually observed by a panelist who specializes in evaluating scalp stains under a standard light source. The presence or absence of staining on the background (ie, background stain) and its intensity were evaluated.
Before the evaluation, all panelists evaluated the standard sample, standardized each score of the evaluation criteria, and then objectively evaluated the results by 10 panelists. The evaluation was based on the four-level criteria shown in 1 to 4 below and the corresponding scores. Furthermore, the evaluation was performed by each panelist selecting one value closest to their own evaluation from among the ratings.

4: Scalp stains are hardly observed 3: Scalp stains are hardly observed 2: Scalp stains are observed 1: Significant scalp stains are observed

After that, calculate the average value of the ratings of all panelists, and if the average value is 3.5 points or more, "Excellent: 5", if the average value is 3 points or more and less than 3.5 points, "Good: 4", and 2.5 points or more and 3 points. The evaluation results were as follows: less than 2 points as "fair: 3", 2 points or more but less than 2.5 points as "slightly poor: 2", and less than 2 points as "poor: 1". The results are shown in the "Substrate stain" column of Tables 1 to 3.

[3] Effects of Examples From the results in Tables 1 to 3, it can be seen that even when the hair dye composition of Comparative Example 1 containing only the B component of the A component and the B component was used, the effect of the A component and the B component Even when the hair dye composition of Comparative Example 2 containing only component A was used, sufficient results were not obtained in both terms of hair dyeing power and fading inhibition in all cases. On the other hand, when the hair dye composition of Example 1 containing both component A and component B was used, excellent results were obtained in terms of both hair dyeing power and fading inhibition. That is, it can be seen that the hair dye composition is capable of achieving both excellent hair dyeing power and prevention of fading.

Examples 11, 12, and 13 are hair dye compositions containing only one component selected from the group consisting of HC Red 13, HC Yellow 4, and HC Blue 16 as the B component, whereas Examples 1 to 13 No. 5 is a hair dye composition containing two or more types selected from the group consisting of HC Red 13, HC Yellow 4, and HC Blue 16 as component B. Comparing these, it can be seen that by including two or more specific HC dyes as the B component, fading suppression and color tone change suppression are significantly improved.
In addition, from the viewpoint of pH, a comparison of Examples 6, 7, 8, 1, 9, and 10 shows that the balance of the overall evaluation is improved when the pH is closer to 7.

1; Packaging material (tube type packaging material),
2; Main body,
3; Lid body fixing part;
4; nozzle part,
5; lid body,
6; Screw groove.

Claims (6)

A hair dye composition comprising the following A and B.
A: Compound represented by the following formula (1)

[In formula (1), R is an amino group or an ethylamino group. ]
B: HC dye The hair dye composition according to claim 1, wherein the B is at least one selected from the group consisting of HC Red 13, HC Yellow 4, and HC Blue 16. The dye according to claim 1 or claim 2, which satisfies the following, where the content ratio of the A to 100% by mass of the entire hair dye composition is W _A mass %, and the content ratio of the B is W _B mass %. Hair composition.
W _A < W _B The hair dye composition according to claim 1, further comprising the following C.
C: Basic dye The above C is 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 The hair dye composition according to claim 4, which is at least one selected from the group consisting of Basic Blue 47, Basic Blue 75, Basic Blue 77, Basic Blue 99, and Basic Blue 124. The following is satisfied when the content ratio of the above A is set as W _A mass %, the content ratio of the above B is set as W _B mass %, and the content ratio of the above C is set as _WC mass % with respect to 100 mass % of the entire hair dye composition. The hair dye composition according to claim 4 or 5.
W _C <W _A <W _B

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