JP2020105103A - Hair dye composition - Google Patents

Abstract

To provide hair dyes in which the changes in color tone of dyed hair is suppressed when continuously or simultaneously coloring and bleaching the hair, or when, after hair dyeing, using an oxidative hair dye or bleach.SOLUTION: Provided is a semi-permanent hair dye composition that suppresses the change in color tone of dyed hair when continuously or simultaneously coloring and bleaching the hair, or when, after hair dyeing, using an oxidative hair dye or bleach, the hair dye composition containing ingredient (A): one or more selected from the group consisting of basic orange 31, 3-nitro-p-hydroxyethylaminophenol, and 4-amino-3-nitrophenol; and ingredient (B): one or more dyes selected from the group consisting of basic brown 16, HC blue 2, HC blue 15, and HC blue 16.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a semi-permanent hair dye composition that suppresses a change in color tone of a hair dye color when the hair is dyed continuously or simultaneously with the bleaching agent, or when an oxidative hair dyeing agent or a bleaching agent is used after dyeing.

Hair dyes include oxidative hair dyes, which are permanent hair dyes, color treatments and hair manicures, which are semi-permanent hair dyes, and hair mascaras, which are temporary hair dyes.

The oxidative hair dye is generally composed of one agent containing an oxidative dye and an alkaline agent and two agents containing hydrogen peroxide. The hair dyeing mechanism of the oxidative hair dye is that an oxidative dye in one agent is oxidized by hydrogen peroxide in the second agent to develop a color. Further, hydrogen peroxide in the two agents also has a function of deoxidizing hair by oxidatively decomposing melanin of hair.

Since an oxidative hair dye uses an oxidative dye that easily causes allergic contact dermatitis, it is desirable to avoid using it for consumers who develop allergies or who want to avoid allergies.

Hair manicure is mainly dyed with acid dyes, and although the risk of developing allergies is low, it is difficult to use it so that it does not adhere to the hands or scalp because it easily stains the background, so it is not easy to continue using it. Absent.

The color treatment is mainly for dyeing hair with basic dyes and HC dyes, and although it does not have the dyeing properties of permanent hair dyes, it is possible to gradually deepen the hair color by continuous use. The dyed color can be maintained for several weeks from the day. In addition, since it is simple and easy to use everyday, it is possible to shorten the interval between dyed hair without difficulty and make the boundary between the dyed part and the new part inconspicuous.

Color treatments and hair manicures only dye hair by adsorbing or penetrating the dye onto the hair, and do not function to decompose and decolorize the melanin of the hair, so it is difficult to achieve a bright hair color. Therefore, a consumer who desires a light hair color needs to be bleached with a bleaching agent during or after dyeing with a color treatment or a hair manicure.

However, in hair dyeing by color treatment or hair manicure, there is a problem that the color tone of the dyed color changes from brown to greenish brown when a bleaching agent is used during or after dyeing.

In particular, if hair dyeing with a color treatment is routinely performed for the purpose of dyeing gray hair, the next time dyeing with an oxidative hair dye, the hair color of the dyed part with the color treatment changes to green-brown, which causes oxidation. There is also a problem in that the color tone differs from the hair color of the new part due to the hair dye.

In order to suppress such a change in color tone of the dyed color, some techniques have been proposed so far.

For example, by containing a specific acid dye in a specific content or ratio, a hair dye composition that can be dyed to have a color that naturally looks beautiful even under a fluorescent lamp or an incandescent lamp having poor color rendering properties ( Patent Document 1), basic blue 99, which has been used as a standard dye as an important dye for hair dyeing, has a large tendency to cause such discoloration, and therefore it is characterized by containing basic blue 75 instead of this dye. A technique such as a hair dye composition (Patent Document 2) has been proposed. However, hair nail polish containing an acid dye still has the problem that the hands and scalp are easily dyed, and the color treatment using a basic dye is just a method of avoiding the use of a dye having a great influence. There are many cases where the color tone of the hair color and the degree of color development are insufficient, and the fundamental solution has not been reached.

It was known that continuous use of semi-permanent hair dyes with oxidative hair dyes and bleaching agents changed the color tone of the dyed hair, but the solution was to use a dye that was empirically known to have little discoloration. It remains a means of choice. Up to now, no technique has been reported for suppressing discoloration by using dyes that are complementary in color tone when discolored.

JP, 2011-157290, A Patent No. 5981317

An object of the present invention is to suppress the color tone change of the hair dye color that occurs when the hair is dyed continuously or simultaneously with the bleaching agent, or when an oxidative hair dyeing agent or a bleaching agent is used after hair dyeing.

That is, the present invention relates to component (A) basic orange 31, one or more selected from the group consisting of 3-nitro-p-hydroxyethylaminophenol and 4-amino-3-nitrophenol, and component (A). B) A hair dye composition containing one or more dyes selected from the group consisting of basic tea 16, HC blue 2, HC blue 15 and HC blue 16 in a weight ratio satisfying the following formula 1. To do.
Formula 1
{2.7×(A1)+4.5×(A2)+2.9×(A3)}/{2.0×(B1)+0.4×(B2)+8.6×(B3)+19×(B4 )}=0.06-17
Here, (A1) is the content (% by weight) of basic orange 31, (A2) is the content (% by weight) of 3-nitro-p-hydroxyethylaminophenol, and (A3) is 4-amino-3. -Nitrophenol content (wt %), (B1) content of basic tea 16 (wt %), (B2) content of HC Blue 2 (wt %), (B3) content of HC Blue 15 Content (% by weight) and (B4) represent the content (% by weight) of HC Blue 16.

Further, the present invention provides a hair dye composition in which the contents of the component (A) and the component (B) satisfy the following formula 2.
Formula 2
{(A1)+(A2)+(A3)+(B1)+(B2)+(B3)+(B4)}≧0.1

The present invention also includes (A) one or more selected from the group consisting of basic orange 31, 3-nitro-p-hydroxyethylaminophenol and 4-amino-3-nitrophenol, and (B). With a hair dye containing one or more dyes selected from the group consisting of basic tea 16, HC blue 2, HC blue 15 and HC blue 16, dyeing hair continuously or simultaneously with a bleaching agent, It is intended to provide a method for suppressing a change in the color tone of a hair dye color even under illumination with poor color rendering properties when an oxidative hair dye or a bleaching agent is used after hair dyeing.

The hair dye composition of the present invention may be dyed with the hair dye composition of the present invention continuously or simultaneously with the bleaching agent, or with an oxidative hair dye or a bleaching agent after being dyed with the hair dye composition of the present invention. It suppresses the change in the color tone of the dyed color that occurs when the hair is used. Even under illumination with poor color rendering, the change in color tone is small, and the hair color can be maintained in a natural color tone without being greenish.

When the total amount of the dyes contained in the hair dye composition of the present invention is large, the effect of the present invention that suppresses the color tone change of the hair dye color by using one hair dye and one oxidation hair dye or bleaching agent Can be expressed. Further, when the total amount of the dye is small, the dye is accumulated on the hair by repeated use to enhance the dyeability, and in the subsequent use of the oxidative hair dye or the bleaching agent, the change in the color tone of the hair dye is suppressed. The effect can be expressed.

Human hair white hair bundles dyed with the hair dye composition of Example 1 (left) and human hair white hair bundles dyed with the bleaching agent after dyed with the hair dye composition of Example 1 (right) were used for color rendering. Photo taken under a good LED light.

Human hair white hair bundles dyed with the hair dye composition of Example 1 (left) and human hair white hair bundles dyed with the bleaching agent after dyed with the hair dye composition of Example 1 (right) were used for color rendering. Photo taken under bad fluorescent light.

Human hair white hair bundles dyed with the hair dye composition of Comparative Example 1 (left) and human white hair hair bundles dyed with the hair dye composition of Comparative Example 1 and then decolorized with a bleaching agent (right) were used as color rendering properties. Photo taken under a good LED light.

Human hair white hair bundles dyed with the hair dye composition of Comparative Example 1 (left) and human white hair hair bundles dyed with the hair dye composition of Comparative Example 1 and then decolorized with a bleaching agent (right) were used as color rendering properties. Photo taken under bad fluorescent light.

The basic orange 31 in the present invention is represented by INCI name (International Cosmetic Ingredient Dictionary and Handbook, 16th edition, Volume 1, 2016): Basic Orange 31, and a compound name: 2-[(4-aminophenyl). azo]-1,3-dimethyl-1H-imidazolium chloride is an orange basic dye (CAS number: 97404-02-9).

The 3-nitro-p-hydroxyethylaminophenol in the present invention is represented by INCI name: 3-Nitro-p-Hydroxyethylaminophenol, and is represented by the compound name 4-[(2-hydroxyethyl)amino]-3-nitrophenol. It is a system HC dye (CAS number: 65235-31-6).

4-amino-3-nitrophenol in the present invention is represented by INCI name: 4-Amino-3-nitrophenol, and compound name: 4-amino-3-nitrophenol is an orange HC dye (CAS number: 610-81-1).

The basic tea 16 in the present invention is represented by INCI name: Basic Brown 16 and is a compound name: 8-[(4-Aminophenyl)azo]-7-hydroxy-N,N,N-trimethyl-2-naphthalenaminium chloride. It is a brown basic dye represented (CAS number: 26381-41-9).

HC Blue 2 in the present invention has an INCI name: HC Blue No. 2, a blue HC dye (CAS number: 33229-34-4) represented by the compound name: 2,2′-{[4-(2-hydroxyethyl)amino-3-nitrophenyl]imino}bisethanol. ).

The HC blue 15 in the present invention has an INCI name: HC Blue No. Compound name: 4-[(2,6-dichlorophenyl)(4-imino-3,5-dimethylcyclohexa-2,5-dien-1-ylidene)methyl]-2,6-xylidene phosphate It is a blue-type HC dye (CAS number: 74578-10-2) represented.

The HC blue 16 in the present invention has an INCI name: HC Blue No. It is a blue type HC dye (CAS number: 74918-21-1) represented by 16 and represented by the compound name: 1,3-bis(2,4-diaminophenoxy)propane tetrahydrochloride.

Component (A) basic orange 31, 3-nitro-p-hydroxyethylaminophenol, 4-amino-3-nitrophenol, component (B) basic tea 16, HC blue 2, HC blue 15, HC in the present invention Blue 16 may be any of those commonly used in hair dye compositions, and commercially available products can be used.

The hair dye composition of the present invention is a component (B) basic tea 16, HC blue 2, HC blue 15 which tends to have a reddish tint and thus has a greenish hair dye color under illumination with poor color rendering. And one or more selected from the group consisting of HC Blue 16 and a component (A) base capable of strengthening the reddish color under illumination with poor color rendering properties and suppressing the dyed color from becoming greenish. The composition contains one or more selected from the group consisting of sex orange 31, 3-nitro-p-hydroxyethylaminophenol and 4-amino-3-nitrophenol in a ratio defined in formula 1 of claim 1.

For each dye, a human hair bundle dyed with a hair dye composition containing one type of dye and a human hair bundle dyed by mixing a bleaching agent into the hair dye composition were dyed with an LED lamp with good color rendering properties. They were observed and compared under a fluorescent lamp with bad lighting. As a result, the human hair bundle dyed with the hair dye composition without using the bleaching agent showed almost no change in color tone due to the difference in illumination. Human hair bundles dyed with a bleaching agent showed almost no change in color tone under the LED lamp with good color rendering compared to the case without mixing the bleaching agent, but under fluorescent lamps with poor color rendering properties The change was great. Furthermore, under each light source, the color tone of the human hair bundle mixed with the bleaching agent and dyed was measured with a color difference meter (two-dimensional colorimeter RC-300 manufactured by Paparabo Co., Ltd.) to obtain L ^* a ^* b ^* color space. "L ^* value", "a ^* value", and "b ^* value" were obtained as values. As a result, the "a ^* value (fluorescent lamp)" under fluorescent lamps with poor color rendering becomes smaller than the "a ^* value (LED)" under LED lamps with good color rendering, and dyes that add green Among them, the "a ^* value (fluorescent lamp)" increased, and there was a dye that increased the redness.

Specifically, each dye 1 of basic orange 31, 3-nitro-p-hydroxyethylaminophenol, 4-amino-3-nitrophenol, basic brown 16, HC blue 2, HC blue 15, HC blue 16 A hair dye composition containing seeds was prepared. Human hair bundles (100% white hair) dyed using these hair dye compositions, a first bleaching agent containing these hair dye compositions and 8% by weight ammonia water, and 6% by weight hydrogen peroxide solution A bleaching agent containing the second agent is mixed in an equal amount, and a human hair bundle (100% white hair) dyed is photographed under an LED lamp with good color rendering and under a fluorescent lamp with poor color rendering. The color tone of the obtained image was measured with a color difference meter, and "L ^* value", "a ^* value", and "b ^* value" were obtained. In the case of any of the dyes, there was almost no difference between the “a ^* value (LED)” and the “a ^* value (fluorescent lamp)” of the human hair bundle when dyed without using the bleaching agent. On the other hand, in human hair bundles dyed with a bleaching agent, four types of basic brown 16, HC blue 2, HC blue 15, and HC blue 16 are compared with “a ^* value (LED)”. "a ^* value (fluorescent lamp)" becomes smaller, and three types of basic orange 31, 3-nitro-p-hydroxyethylaminophenol and 4-amino-3-nitrophenol are compared with "a ^* value (LED)". "A ^* value (fluorescent lamp)" increased. Here, "a ^* value (LED)" represents the "a ^* value" of the color tone taken under an LED lamp with good color rendering, and "a ^* value (fluorescent lamp)" is under fluorescent light with poor color rendering. It represents the "a ^* value" of the color tone taken.

Further, by dividing the amount of change in “a ^* value (LED)” and “a ^* value (fluorescent lamp)” when dyeing using a bleaching agent by the content of the dye in the hair dye composition, the dye The amount of change in "a ^* value" per unit weight was obtained for each. When a hair dye composition was prepared in which various dyes having a negative change in the “a ^* value” and dyes having a positive change were prepared and the hair color was confirmed, The smaller the total change amount of the "a ^* value", the smaller the change in color tone due to the difference in lighting that occurred when hair was dyed using a bleaching agent.

That is, the dye in the case of using a bleach agent as compared to "a ^* value (LED)" is "a ^* value (fluorescent lamp)" becomes smaller, when using bleach "a ^* value (LED)" By using a hair dye composition that has been toned by combining dyes that have a larger “a ^* value (fluorescent lamp)” compared to the above, it is possible to suppress the change in color tone due to the light source even if a bleaching agent is used. Found.

Furthermore, as a coefficient of variation of the "a ^* value" per unit weight obtained for each dye, determine the variation of the "a ^* value" of each dye for hair dye composition is a dye mixture, the amount of change is small It has been found that by mixing the dyes as described above, it is possible to reduce the change in color tone due to the difference in illumination that occurs when hair is dyed using a bleaching agent.

That is, a dye having a negative change in the “a ^* value” for a hair dye composition that is a dye mixture, using the change amount of the “a ^* value” per unit weight obtained for each dye as a coefficient, When the change amounts of "a ^* value" and the dye having a positive change value are summed up, and the difference between the negative change amount and the positive change amount is smaller, the bleaching agent is used to dye the hair. In this case, the change in color tone caused by the difference in lighting can be reduced.

On the other hand, using the amount of change in “a ^* value” per unit weight obtained for each dye as a coefficient, for a hair dye composition that is a dye mixture, a dye in which the amount of change in “a ^* value” has a negative value, When the change amounts of "a ^* value" and the dye that change to a positive value are summed up, even if the difference between the negative change amount and the positive change amount is large, the change with the smaller absolute value is used. The effects of the present invention could be confirmed when visually identifiable.

Generally, the color difference dE=20 is called a grade 6 color difference, and there is a color difference at the color name level, which is a color difference identified as a different color. Similarly, the color difference dE=1.2 is called a color difference of the second grade (practical color difference a), and is a color difference that can be recognized as a color difference. Even if only the change of the “a ^* value” is considered, it is shown that different colors can be distinguished if the change amount is 20, and color differences can be recognized if the change amount is 1.2.

That is, the value of the ratio of the negative change amount and a positive variation of the ^{"a *} value" in the ^{"a *} value" is, in the range of 1.2 / 20 to 20 / 1.2, i.e. 0.06 Within the range of 17, it suppresses the change in the color tone of the hair color that is the subject of the present invention, when the hair is dyed continuously or simultaneously with the bleaching agent, or when an oxidative hair dyeing agent or a bleaching agent is used after hair dyeing. can do.

Depending on the total amount of dye, the dyeability may be small after one use. However, repeated use will increase the dye's ability to enhance dyeability, and subsequent use of oxidative hair dyes and bleaching agents will result in a dyed hair color. Since the effect of the present invention that suppresses the change in color tone can be exhibited, the effect of the present invention can be exhibited even when the total amount of dyes contained in the hair dye composition of the present invention is small. When the total amount of the dye contained in the hair composition is small, when an oxidative hair dye or a bleaching agent is used in a state where the dye is not sufficiently accumulated on the hair, the hair color may be changed under illumination with poor color rendering. Since the problem of greenishness is unlikely to occur, it is difficult to feel the effects of the present invention. Therefore, the total content of the components (A) and (B) is preferably 0.1% by weight or more.

Furthermore, in the hair dye composition of the present invention, as other components, for example, oils and fats, waxes, hydrocarbons, polyhydric alcohols, amides, silicones, cationic surfactants, amphoteric surfactants, Nonionic surfactants, cationic polymers, amphoteric polymers, nonionic polymers, amino acids, vitamins, chelating agents, preservatives, stabilizers, antioxidants, plant extracts, pigments, fragrances, It may contain a pigment, an ultraviolet absorber or the like.

The dosage form of the hair dye composition of the present invention is not particularly limited, and for example, any dosage form such as an emulsion, a cream, a paste, a powder, or a liquid can be adopted.

Although the hair dye composition of the present invention can exert the effect by one agent alone, the method of use is not limited to single use, and the hair dye composition of the present invention contains an alkali agent and a reducing agent. The present invention, after mixing with a second agent at the time of use, is applied to hair, the hair dye composition of the present invention is applied to hair and then the second agent is applied, or the second agent is applied to hair and then the present invention The effect of the present invention can also be exhibited by the method of use for applying the hair dye composition.

Hereinafter, the present invention will be described in detail with reference to Examples, but the technical scope of the present invention is not limited thereto. Unless otherwise specified, the content indicates% by weight.

Cream type hair dye compositions having the compositions shown in Tables 1 and 2 were prepared by a conventional method. (Examples 1 to 13, Comparative Examples 1 to 8)

Human hair bundles were dyed by the following method using the hair dye composition shown in Table 1.

(Hair dyeing by color treatment)
1 g of the cream type hair dye compositions of Examples 1 to 13 and Comparative Examples 1 to 9 were applied to a 100% human hair white hair bundle (manufactured by Vurex, length: 10 cm, weight: 1 g) and the mixture was applied at 40° C. for 10 hours. After leaving for a minute, the hair dye composition was thoroughly rinsed by washing with water and dried sufficiently.

(Decolorization with bleaching agent)
A bleach in which the above-mentioned human hair bundle having been dyed is mixed with equal amounts of a first bleaching agent containing 8% by weight of ammonia water and a second bleaching agent containing 6% by weight of hydrogen peroxide solution. 1 g of the agent mixture was applied, allowed to stand at 40° C. for 10 minutes, and then washed with water to thoroughly wash away the hair dye composition, and then dried sufficiently.

Test 1 Evaluation of dyeability (test method)
Human hair bundles dyed once using the hair dye compositions having the compositions shown in Tables 1 and 2 are visually observed by 10 specialized panels, and evaluated in two stages of high and low dyeability, The criteria are shown below.

(Evaluation criteria)
A: 9 or 10 people evaluated that the dyeability was high.
◯: 6 to 8 people evaluated that the dyeability was high.
Δ: 3 to 5 people evaluated that the dyeability was high.
X: 2 or less people evaluated as having high dyeability.

Test 4 Evaluation of color rendering (test method)
Human hair bundles that have been dyed once or three times with the hair dye compositions having the compositions shown in Tables 1 and 2 and then decolorized with a bleaching agent are used under LED lighting with good color rendering and fluorescent with poor color rendering. Visual observation was carried out by 10 professional panels under a light, and evaluation was made on the basis of two levels, that is, the degree of change in color tone is large and small, and the results are shown below.

(Evaluation criteria)
A: 9 or 10 persons evaluated that the change in color tone due to the light source was small.
◯: 6 to 8 people evaluated that the change in color tone due to the light source was small.
Δ: 3 to 5 people evaluated that the change in color tone due to the light source was small.
X: Two or less people evaluated that the change in color tone due to the light source was small.

As shown in Examples 1 to 13 in Table 1, the hair dyed with the hair dye composition containing at least one selected from the component (A) and at least one selected from the component (B) has a color rendering. Good results were shown in the evaluation of sex. On the other hand, as shown in Comparative Examples 1 to 9 in Table 2, when hair is dyed with a hair dye composition containing no component (A), or the difference in content between the component (A) and the component (B) is When it was too large, good results were not obtained in the color rendering evaluation.

In addition, as a representative example, the evaluation results of color rendering using the hair dye compositions of Example 1 and Comparative Example 1 are shown in FIGS. As shown in FIGS. 1 and 2, when dyed with the hair dye composition of Example 1 and then decolorized with a bleaching agent, under a LED lamp with good color rendering (FIG. 1, right) and a fluorescent lamp with poor color rendering. In the comparison below (FIG. 2, right), the change in color tone was small. On the other hand, as shown in FIGS. 3 and 4, when dyed with the hair dye composition of Comparative Example 1 and then decolorized with a bleaching agent, the color rendering was better than that under an LED lamp with good color rendering (FIG. 3, right). In the comparison under the fluorescent lamp (FIG. 4, right), which has poor performance, the change in color tone was large.

Further, as shown in Examples 4 to 6 of Table 1 and Comparative Example 2 of Table 2, evaluation of color rendering properties is performed even when the content of the component (A) is smaller than the content of the component (B). Good results have been obtained.

Further, as shown in Examples 10 and 11 of Table 1 and Comparative Examples 6 and 7 of Table 2, when the total amount of the component (A) and the component (B) is small, the dyeability by one-time hair dyeing The change in color tone in the color rendering evaluation was not noticeable because it was low, and it was difficult to recognize the effect of containing the components (A) and (B), but the color rendering after repeated hair dyeing was evaluated. In, the good results were obtained in Examples 10 to 11.

Other evaluations are not shown, but not only hair dyeing with the hair dye composition of the present invention and continuous bleaching treatment with a bleaching agent, but also oxidative dyeing simultaneously with hair dyeing with the hair dye composition of the present invention or continuously. Even when the hair dyeing treatment with a hair agent was performed, good results were obtained with the hair dye compositions shown in Examples of Table 1 as compared with the hair dye compositions shown in Comparative Examples of Table 2.

Although other examples of the invention are not shown, a powdery hair dye composition and a liquid hair dye composition having the dye composition described in components 1 to 7 of Table 1 were prepared and evaluated in the same manner. Also in this case, the effect of suppressing the color tone change of the hair dye color was excellent when the hair was dyed continuously or simultaneously with the hair bleaching, or when the hair was dyed or dyed with an oxidative hair dye.

According to the present invention, since it is possible to provide a hair dye that continuously or simultaneously with a bleaching agent, or when an oxidative hair dyeing agent or a bleaching agent is used after hair dyeing, a change in the color tone of the hair dyeing color is suppressed. It is possible to freely select the use of color treatment and hair dyeing with an oxidative hair dye or use of a bleaching agent without worrying about the change in color tone of the dyed part when the dyed part and the new part are dyed at the same time.

Claims (3)

Component (A) basic orange 31, one or more selected from the group consisting of 3-nitro-p-hydroxyethylaminophenol and 4-amino-3-nitrophenol, component (B) basic tea 16, Hair dye containing one or more dyes selected from the group consisting of HC Blue 2, HC Blue 15 and HC Blue 16, and the contents of the components (A) and (B) satisfy the following formula 1. Composition.
Formula 1
{2.7×(A1)+4.5×(A2)+2.9×(A3)}/{2.0×(B1)+0.4×(B2)+8.6×(B3)+19×(B4 )}=0.06-17
Here, (A1) is the content (% by weight) of basic orange 31, (A2) is the content (% by weight) of 3-nitro-p-hydroxyethylaminophenol, and (A3) is 4-amino-3. -Nitrophenol content (wt %), (B1) content of basic tea 16 (wt %), (B2) content of HC Blue 2 (wt %), (B3) content of HC Blue 15 Content (% by weight) and (B4) represent the content (% by weight) of HC Blue 16. The hair dye composition according to claim 1, wherein the contents of the component (A) and the component (B) satisfy the following formula 2.
Formula 2
{(A1)+(A2)+(A3)+(B1)+(B2)+(B3)+(B4)}≧0.1 Use of the hair dye composition according to claim 1 or 2 for continuous or simultaneous hair dyeing with a bleaching agent, or use of an oxidative hair bleaching agent or a bleaching agent after hair dyeing to suppress color tone change How to dye hair.