Hairdye composition

Abstract

To provide a hairdye composition capable of improving the dyeing fastness to hair, suppressing color tone changes due to discoloration and further improving gray color compatibility.SOLUTION: There is provided a hairdye composition comprising an acid dye, which comprises: as a component (A), at least one selected from a group consisting of Green No. 201, Green No. 3 and Green No. 204; as a component (B), at least one selected from a group consisting of Orange No. 205, Yellow No. 5, Yellow No. 406, Red No. 201 and Red No. 504; and, as a component (C), at least one selected from a group consisting of lactic acid, citric acid, pyrrolidonecarboxylic acid, glycolic acid, levulinic acid, tartaric acid, maleic acid, succinic acid, maleic acid, fumaric acid, malonic acid and a salt thereof. Therein a ratio of a content of the component (A) to a content of the component (B) is 1:0.1 to 1:100.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a hair dye composition for use in hair dyeing treatments. [Background technology]

[0002] Hair dyes using acid dyes have been used as hair dyes for dyeing hair. These hair dyes using acid dyes can eliminate safety issues such as allergies caused by oxidative hair dyes, can avoid damage caused by strong alkaline agents and hydrogen peroxide, and can also impart elasticity and strength to hair, and therefore are widely used in hair manicures, gray hair dyes, and the like.

[0003] However, such hair dyes have a problem in that the acid dye gradually flows out and fades when the hair is shampooed after dyeing.

[0004] Therefore, a hair dye composition has been proposed to avoid such inconvenience. More specifically, a hair dye composition containing an acid dye is proposed, which contains (A) two or more acid dyes selected from Green No. 204, Red No. 230 (1) and Yellow No. 202 (1), or one acid dye selected from Green No. 204 and Red No. 230 (1), and (B) one or more acid dyes selected from Blue No. 1, Red No. 102, Red No. 106, Red No. 504, Orange No. 205, Yellow No. 4, Yellow No. 203, Yellow No. 403 (1), Green No. 201, Brown No. 201, Purple No. 401 and Black No. 401, and the blending ratio of the acid dye of group (A) to the total amount of the acid dyes in the hair dye composition is 0.1 to 15%. It is described that such a composition makes it possible to provide an acidic hair dye that has excellent color fastness and reduces color fading when washing the hair after dyeing (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4326170 Summary of the Invention [Problem to be solved by the invention]

[0006] Here, since acidic hair dyes do not contain oxidizing agents such as hydrogen peroxide, they cannot bleach hair. Therefore, in order to improve the blending of gray hair with black hair (a state in which the gray hair and black hair cannot be distinguished and the gray hair is not noticeable), a large amount of Orange No. 205 is blended as an acidic dye, as in the hair dye composition of Patent Document 1 above. However, since Orange No. 205 is likely to remain in hair, there is a problem that a color tone change due to fading (i.e., a color tone change to orange after fading) occurs when the amount of Orange No. 205 blended is increased.

[0007] Therefore, the present invention has been made in consideration of the above problems, and aims to provide a hair dye composition that can improve the dyeing fastness to hair (the color intensity of the acid dye after fading), suppress color tone change due to fading, and further suppress the visibility of gray hair parts in hair, thereby improving the compatibility with gray hair. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the hair dye composition of the present invention is a hair dye composition containing an acid dye, and is characterized in that it contains, as component (A), at least one selected from the group consisting of Green No. 201, Green No. 3, and Green No. 204, as component (B), at least one selected from the group consisting of Orange No. 205, Yellow No. 5, Yellow No. 406, Red No. 201, and Red No. 504, as component (C), and at least one selected from the group consisting of lactic acid, citric acid, pyrrolidone carboxylic acid, glycolic acid, levulinic acid, tartaric acid, malic acid, succinic acid, maleic acid, fumaric acid, malonic acid, and salts thereof, and the ratio of the content of component (A) to the content of component (B) is component (A):component (B)=1:0.1 to 1:100. Effect of the Invention

[0009] According to the present invention, it is possible to improve the fastness of dyeing on hair, suppress color change due to fading, and further suppress the visibility of gray hair parts in hair, thereby improving the compatibility with gray hair. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Preferred embodiments of the present invention will be described below. Note that the present invention is not limited to the following embodiments, and can be modified as appropriate within the scope of the present invention.

[0011] The hair dye composition of the present invention is used in hair dyeing treatments such as gray hair dyeing and hair manicure.

[0012] (acid dye) The hair dye composition of the present invention contains at least one kind (hereinafter sometimes referred to as component (A)) selected from the group consisting of Green No. 201, Green No. 3, and Green No. 204 as a green-based acid dye. These may be used alone or in combination of two or more kinds.

[0013] The content of component (A) in the entire hair dye composition of the present invention is preferably 0.001% by mass or more and 0.5% by mass or less, based on 100% by mass of the hair dye composition. This is because if it is less than 0.001% by mass, the effect of suppressing the color tone change to orange after fading may decrease, and if it is more than 0.5% by mass, the dyed color may become extremely green, and the effect of suppressing the visibility of gray hair may decrease.

[0014] The hair dye composition of the present invention contains at least one orange-based acid dye (hereinafter, sometimes referred to as component (B)) selected from the group consisting of Orange No. 205, Yellow No. 5, Yellow No. 406, Red No. 201, and Red No. 504. These may be used alone or in combination of two or more.

[0015] The content of component (B) in the entire hair dye composition of the present invention is preferably 0.001% by mass or more and 1.0% by mass or less, based on 100% by mass of the hair dye composition. This is because if it is less than 0.001% by mass, fastness to washing may decrease, making it difficult to maintain compatibility with gray hair, and if it is more than 1.0% by mass, the dyed color may become extremely orange, decreasing the effect of suppressing color change to orange after fading.

[0016] (pH adjuster) The hair dye composition of the present invention also contains a pH adjuster (hereinafter, sometimes referred to as component (C)). There are no particular limitations on the pH adjuster, and it may be any that is typically used in hair dye compositions. Examples include lactic acid, citric acid, pyrrolidone carboxylic acid, glycolic acid, levulinic acid, tartaric acid, malic acid, succinic acid, maleic acid, fumaric acid, malonic acid, and salts thereof (e.g., sodium lactate and potassium hydrogen tartrate). These may be used alone or in combination of two or more.

[0017] The content of component (C) in the entire hair dye composition of the present invention is not particularly limited, but is preferably 1.0% by mass or more and 15.0% by mass or less, relative to 100% by mass of the hair dye composition.

[0018] The hair dye composition of the present invention can have a pH adjusted to 1.5 to 5.0 by using these pH adjusters.

[0019] Here, the hair dye composition of the present invention contains the above-mentioned components (A), (B), and (C), and is characterized in that the ratio of the content [mass%] of component (A) to the entire hair dye composition and the content [mass%] of component (B) to the entire hair dye composition is component (A):component (B)=1:0.1 to 1:100 (i.e., the content of component (B) / the content of component (A) is 0.1 or more and 100 or less).

[0020] With this configuration, component (A), which is a green-based acid dye, acts as a complementary color component, which visually suppresses the color development of component (B), which is an orange-based acid dye that tends to remain in hair (e.g., hair whose original color is black or brown) after fading. As a result, it becomes possible to suppress color change due to fading (i.e., color change to orange after fading).

[0021] The "complementary color component" referred to here is a component that has the effect of producing an achromatic color when mixed with component (B) (i.e., visually suppressing the color development of component (B)), and is a component (acid dye) that has a green color with hue numbers 19 to 24 on the 24-color color chip classified by the Ostwald color wheel.

[0022] In addition, it is possible to improve the dyeing fastness to hair (the color intensity of the acid dye after fading), and therefore it is possible to obtain a hair dye composition that has excellent dyeing stability over time.

[0023] In addition, since the acid dye blends well with gray hair even after fading, it is possible to reduce the visibility of gray hair in hair (e.g., hair originally black or brown) and improve the blending of the gray hair.

[0024] From the viewpoint of further improving the above-mentioned effects, the ratio of the content of the above-mentioned component (A) to the content of the component (B) is preferably component (A):component (B)=1:0.1 to 1:50, more preferably component (A):component (B)=1:2 to 1:50, and particularly preferably component (A):component (B)=1:2 to 1:4.

[0025] (Other acid dyes) The hair dye composition of the present invention may contain an acid dye other than the above-mentioned components (A) and (B) as another acid dye (hereinafter sometimes referred to as component (D)). Examples of the other acid dye include Red No. 2, Red No. 102, Red No. 106, Red No. 227, Yellow No. 4, Yellow No. 203, Yellow No. 403, Blue No. 1, Blue No. 205, Purple No. 401, and Black No. 401. These may be used alone or in combination of two or more kinds.

[0026] In addition, from the viewpoint of sufficiently maintaining the effect of suppressing color tone change due to fading (i.e., color tone change to orange after fading), the content of component (D) relative to the entire hair dye composition of the present invention is preferably 0.001 mass % or more and 1.5 mass % or less, based on 100 mass % of the hair dye composition.

[0027] Furthermore, in the hair dye composition of the present invention, from the viewpoint of improving the above-mentioned effects, the content of component (A) relative to the total acid dye (100% by mass of acid dye) (i.e., the content of component (A) relative to the total content of component (A), component (B), and component (D)) is preferably 0.1% by mass or more and 90% by mass or less (i.e., the content of component (A) / (content of component (A)+content of component (B)+content of component (D)) is preferably 0.001 or more and 0.9 or less).

[0028] (Thickener) The hair dye composition of the present invention contains a thickener as component (E). Examples of component (E) include gum arabic, guar gum, xanthan gum, hydroxyethyl cellulose, rice starch, hydroxypropyl starch phosphate, carbomer, sodium polyacrylate, polyvinylpyrrolidone, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, and (acrylic acid / acrylamidomethylpropanesulfonic acid) copolymer. These may be used alone or in combination of two or more.

[0029] From the viewpoint of ensuring a viscosity that is excellent in application workability to hair, the content of component (E) in the entire hair dye composition is preferably 0.01% by mass or more and 10% by mass or less, based on 100% by mass of the hair dye composition.

[0030] (solvent) Furthermore, the solvent (dispersion medium) used in the hair dye composition of the present invention is not particularly limited, and water (purified water) is used, but if necessary, organic solvents such as methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, octanol, ethylene glycol, diethylene glycol, triethylene glycol, benzyl alcohol, 2-phenylethyl alcohol, and phenoxyethanol may be contained in the water at concentrations that are harmless to the human body when in contact with the water.

[0031] (Other Ingredients) The hair dye composition of the present invention may contain other ingredients, such as oily ingredients (e.g., almond oil, shea butter, hydrogenated castor oil, hydrogenated polyisobutene, microcrystalline wax, macadamia oil, beeswax, jojoba oil, polyglycerol fatty acid esters, lanolin, liquid paraffin, etc.), higher alcohols (e.g., isostearyl alcohol, oleyl alcohol, stearyl alcohol, cetanol, cetearyl alcohol, behenyl alcohol, myristyl alcohol, etc.), silicones (e.g., amodimethicone, cyclopentasiloxane, dimethiconol, dimethicone, etc.), surfactants (e.g., sodium lauryl sulfate, sodium polyoxyethylene lauryl ether sulfate, sodium polyoxyethylene lauryl ether phosphate, sodium stearoyl methyl taurate, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene sorbitan monostearate, etc.), and fragrances, within the scope of not impairing the effects of the present invention.

[0032] (Form of hair dye composition) The hair dye composition of the present invention can be made into a liquid, milk, cream (gel), foam (form when in use), mist (form when in use), etc. by known methods, and can also be made into an aerosol form. EXAMPLES

[0033] The present invention will be described below based on examples. Note that the present invention is not limited to these examples, and these examples can be modified or changed based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

[0034] (Examples 1 to 28 and Comparative Examples 1 to 5) <Production of hair dye composition> Water (ion-exchanged water) and each raw material were mixed to produce hair dye compositions of Examples 1 to 28 and Comparative Examples 1 to 5 having the compositions (% by mass) shown in Tables 1 to 4. Each hair dye composition was in a gel form.

[0035] [Table 1]

[0036] [Table 2]

[0037] [Table 3]

[0038] [Table 4]

[0039] <Preparing hair samples> A commercially available hair bundle (manufactured by Beaulux Corp., product name: human gray hair (BM-W-A)) was prepared as the "gray hair bundle," and a commercially available hair bundle (manufactured by Beaulux Corp., product name: 50% human gray hair (BM-MIX-K50-A)) was prepared as the "hair bundle with 50% gray hair and 50% black hair."

[0040] <Hair dye treatment> Next, the prepared hair was subjected to the following treatments (A) to (C). (A) First, 4 g of each hair dye composition of the Examples and Comparative Examples was prepared for 1 g of each sample hair. (B) Next, each of the prepared hair dye compositions was applied evenly to the entire hair, and after the hair dyeing process, the entire hair was covered with plastic wrap and left at 45°C for 15 minutes, and then left at room temperature for 5 minutes. (C) Then, the hair after being left at room temperature was rinsed with water and then dried using a hair dryer.

[0041] <Fade treatment> Next, the dyed hair was subjected to the following treatments (D) to (H). (D) First, a sufficient amount (50 ml) of an aqueous solution of sodium polyoxyethylene lauryl sulfate (30% by mass) was prepared as a first fading solution and stored in a thermostatic bath at 40°C. (E) Next, the dyed hair was immersed in the first fading solution (40° C.) prepared in (D) above for 60 minutes to carry out a fading treatment. (F) Next, a sufficient amount (50 ml) of stearyltrimethylammonium chloride (5% by mass) was prepared as a second fading solution and stored in a thermostatic bath at 40°C. (G) Next, the hair that had been subjected to the fading treatment in (E) above was immersed in the second fading solution (40°C) prepared in (F) above for 60 minutes to undergo a fading treatment. (H) After the fading treatment in (G) above, the hair was rinsed with water and then dried using a hair dryer.

[0042] <Evaluation criteria> Next, the hair treated in the above (A) to (H) was subjected to a sensory evaluation of the effect of each hair dye composition used in the above (B) on the finish of the hair dye treatment. Specifically, the hair was evaluated by 10 expert panelists for three items: (1) color change after fading, (2) fastness, and (3) compatibility with gray hair after fading. The evaluation criteria for each evaluation item are shown below.

[0043] (1) Color change after fading The "gray hair bundle" that had been subjected to the above-mentioned hair dyeing and fading treatments was evaluated for color change after fading according to the following evaluation criteria.

[0044] The degree of orange color appearance in hair after fading (hair that has been subjected to the above-mentioned dyeing and fading treatments) is the same as the degree of orange color appearance in hair before fading (hair that has been subjected to the above-mentioned dyeing treatments only and before the fading treatments), and remains unchanged: ◎ The degree of orange color appearance in the hair after fading is the same as the degree of orange color appearance in the hair before fading, and there is no significant difference: ○ The degree of orange color appearance in the hair after fading is slightly greater than the degree of orange color appearance in the hair before fading: △ The degree of orange color appearance in the hair after fading is greater than the degree of orange color appearance in the hair before fading: ×

[0045] (2) Robustness The "gray hair bundle" that had been subjected to the above-mentioned dyeing and fading treatments was evaluated for fastness (color intensity of the acid dye after fading) according to the following evaluation criteria.

[0046] The color density of the acid dye on the hair after fading is very high, and the color fastness is very excellent: ◎ The color of the acid dye on the hair after fading is high and has excellent color fastness: ◎ The color density of the acid dye on the hair after fading is low, and fastness is poor: △ The color density of the acid dye on the hair after fading is very low, and fastness is very poor: ◎

[0047] (3) How fading affects gray hair A "hair bundle consisting of 50% gray hair and 50% black hair" that had been subjected to the above-mentioned hair dyeing and fading treatment was evaluated for its compatibility with gray hair after fading according to the following evaluation criteria.

[0048] The grey hair and black hair are completely indistinguishable, and the grey hair is completely unnoticeable: ◎ The gray hair and black hair are almost indistinguishable, and the gray hair is barely noticeable: 〇 The white and black hair are clearly distinguishable, and the white hair is a little noticeable: △ The gray hair and black hair are clearly distinguishable, and the gray hair is very noticeable: ×

[0049] In each of the evaluations (1) to (3) above, "◎" was evaluated as being particularly excellent, "○" was evaluated as being excellent, and "△" and "×" were evaluated as being insufficient. The results are shown in Tables 1 to 4.

[0050] As shown in Tables 1 to 3, in Examples 1 to 28, which contain components (A), (B), and (C) and have a ratio of the content of component (A) to the content of component (B) of 1:0.1 to 1:100, the component (A), which is a greenish acid dye, acts as a complementary color component, and thus it is possible to suppress color tone change due to fading (i.e., color tone change to orange after fading) and improve the fastness of dyeing of hair. It is also possible to suppress the prominence of gray hair in faded hair and improve the compatibility with gray hair. [Industrial Applicability]

[0051] As described above, the present invention is particularly useful when used as a hair dye composition in hair dyeing treatment.

Claims

1. A hair dye composition containing an acid dye, Contains at least one selected from the group consisting of Green No. 201, Green No. 3, and Green No. 204 as component (A), As component (B), at least one selected from the group consisting of Orange No. 205, Yellow No. 5, Yellow No. 406, Red No. 201, and Red No. 504 is contained, As component (C), at least one selected from the group consisting of lactic acid, citric acid, pyrrolidone carboxylic acid, glycolic acid, levulinic acid, tartaric acid, malic acid, succinic acid, maleic acid, fumaric acid, malonic acid, and salts thereof is contained, A hair dye composition, characterized in that the ratio of the content of the component (A) to the content of the component (B) is component (A):component (B)=1:0.1 to 1:

100.

2. The component (A) is Green No. 201 or Green No. 3, The component (B) is Orange No.

205.

2. The hair dye composition according to claim 1 .

3. 3. The hair dye composition according to claim 1, wherein the content of the component (A) relative to the total amount of the acid dye is 0.1% by mass or more and 90% by mass or less.

4. The hair dye composition according to claim 1, characterized in that it contains, as component (D), at least one member selected from the group consisting of Red No. 2, Red No. 102, Red No. 106, Red No. 227, Yellow No. 4, Yellow No. 203, Yellow No. 403, Blue No. 1, Blue No. 205, Purple No. 401, and Black No. 401.

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