Hairdye composition

Abstract

To provide a hairdye composition capable of improving the expression of a cold color, improving the brightness and luster of hair 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 yellow No. 406, yellow No. 4 and Yellow No. 203; as a component (C), at least one selected from Black No. 401 and Purple No. 401; and as a component (D), at least one selected from a group consisting of lactic acid, citric acid, pyrrolidonecarboxylic acid or the like. Therein when a content of the component (A) is defined as A [mass %], a content of the component (B) is defined as B [mass %] and a content of the component (C) is defined as C [mass %], a relationship of 0.05≤(A+B) / C≤5 is established.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] The colors used for dyeing gray hair are mainly brown, dark brown, black, etc., and generally, these colors are produced by combining several types of acid dyes, particularly cool color acid dyes such as black, purple, blue, and green (e.g., Black No. 401 and Purple No. 401).

[0004] As such a hair dye composition, for example, an acidic hair dye composition containing at least one pH adjuster selected from organic acids and organic acid salts and a thickener, containing at least one acid dye selected from Black No. 401, Purple No. 401, and Orange No. 205, and containing an alkylene glycol ester, has been proposed. It is described that such a composition can enhance hair dyeing power and inhibit fading after dyeing, and can improve the uniformity of the dyed color tone (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5220324 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), as in the hair dye composition of Patent Document 1, a large amount of Black No. 401 or Purple No. 401 is blended as an acidic dye, but if the blending amount of Black No. 401 or Purple No. 401 is increased, the hair as a whole becomes dark in color, the brightness decreases, and the luster decreases.

[0007] Therefore, the present invention has been made in consideration of the above problems, and has an object to provide a hair dye composition that can improve the expression of cool colors, improve the brightness and luster of hair, 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 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 at least one selected from the group consisting of Green No. 201, Green No. 3, and Green No. 204 as component (A), at least one selected from the group consisting of Yellow No. 406, Yellow No. 4, and Yellow No. 203 as component (B), at least one selected from the group consisting of Black No. 401 and Purple No. 401 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 as component (D), and satisfies the relationship 0.05≦(A+B) / C≦5 when the content of component (A) is A [mass %], the content of component (B) is B [mass %], and the content of component (C) is C [mass %]. Effect of the Invention

[0009] According to the present invention, it is possible to improve the expression of cool colors, as well as to improve the brightness and luster of hair, and further to 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 expression and brightness of cool colors may be insufficient, and if it is more than 0.5% by mass, the dyed color may become extremely green, reducing the effect of suppressing the visibility of gray hair.

[0014] The hair dye composition of the present invention contains at least one yellow acid dye (hereinafter, sometimes referred to as component (B)) selected from the group consisting of Yellow No. 406, Yellow No. 4, and Yellow No. 203. 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 0.002% by mass or more and 0.3% by mass or less, based on 100% by mass of the hair dye composition. This is because if it is less than 0.002% by mass, the brightness may be insufficient, and if it is more than 0.3% by mass, the dyed color may become extremely yellow, reducing the effect of suppressing the visibility of gray hair.

[0016] The hair dye composition of the present invention also contains at least one of black No. 401 and purple No. 401 (hereinafter sometimes referred to as component (C)) as a cool-color acid dye. These may be used alone or in combination.

[0017] In this case, "cool colors" refers to black, purple, blue, green, gray, etc., and refers to colors with hue numbers 12 to 24 on the 24-color color chart classified by the Ostwald color wheel.

[0018] The content of component (C) in the entire hair dye composition of the present invention is preferably 0.006% 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 0.006% by mass, the effect of suppressing the visibility of gray hair may decrease, and if it is more than 0.5% by mass, the brightness may become insufficient.

[0019] (pH adjuster) The hair dye composition of the present invention also contains a pH adjuster (hereinafter, sometimes referred to as component (D)). 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.

[0020] The content of component (D) in the entire hair dye composition of the present invention is not particularly limited, but is preferably from 1.0% by mass to 15.0% by mass, based on 100% by mass of the hair dye composition.

[0021] The hair dye composition of the present invention can have a pH adjusted to 1.5 to 5.0 by using these pH adjusters.

[0022] Here, the hair dye composition of the present invention is characterized in that, when the content of component (A) relative to the entire hair dye composition is A [% by mass], the content of component (B) relative to the entire hair dye composition is B [% by mass], and the content of component (C) relative to the entire hair dye composition is C [% by mass], the relationship 0.05≦(A+B) / C≦5 is established (i.e., the content of component (C):(the sum of the content of component (A) and the content of component (B))=1:0.05 to 1:5).

[0023] With this composition, it is possible to improve the expression of cool colors by component (C), which is a cool acid dye, while component (A), which is a green acid dye, and component (B), which is a yellow acid dye, act as components that improve the finished feel of the hair, thereby making it possible to improve the brightness and luster of the hair.

[0024] The term "brightness" used herein refers to an index of the brightness of the color (cool colors) developed by the hair dye composition.

[0025] Moreover, the "luster" referred to here refers to the reflection of light when light is shone on the hair.

[0026] In addition, because component (C) blends well with gray hair, the gray hair portions become indistinguishable from the black hair portions and the gray hair becomes less noticeable, making it possible to suppress the visibility of the gray hair portions in the hair and improve the blending with the gray hair.

[0027] From the viewpoint of further improving the above-mentioned effects, it is preferable that the relationship 0.4≦(A+B) / C≦1.2 is satisfied, and it is more preferable that the relationship 0.36≦(A+B) / C≦1.2 is satisfied.

[0028] (Other acid dyes) The hair dye composition of the present invention may contain an acid dye other than the above-mentioned components (A) to (C) as another acid dye (hereinafter, sometimes referred to as component (E)). Examples of the other acid dye include Red No. 2, Red No. 102, Red No. 106, Red No. 227, Red No. 201, Red No. 504, Yellow No. 5, Yellow No. 403, Orange No. 205, Blue No. 1, and Blue No. 205. These may be used alone or in combination of two or more kinds.

[0029] In addition, from the viewpoint of improving the stability of the formulation over time, the content of component (E) 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.

[0030] (Thickener) The hair dye composition of the present invention contains a thickener as component (F). Examples of this component (F) include gum arabic, guar gum, xanthan gum, hydroxyethyl cellulose, rice starch, hydroxypropyl starch phosphate, carbomer, sodium polyacrylate, polyvinylpyrrolidone, (hydroxyethyl acrylate / sodium acryloyldimethyl taurate) copolymer, and (acrylic acid / acrylamidomethylpropanesulfonic acid) copolymer. These may be used alone or in combination of two or more.

[0031] In addition, from the viewpoint of ensuring a viscosity that is excellent in application workability to hair, the content of component (F) relative to 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.

[0032] (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.

[0033] (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.

[0034] (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

[0035] 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.

[0036] (Examples 1 to 25 and Comparative Examples 1 to 6) <Production of hair dye composition> Water (ion-exchanged water) and each raw material were mixed to produce hair dye compositions of Examples 1 to 25 and Comparative Examples 1 to 6 having the compositions (% by mass) shown in Tables 1 to 4. Each hair dye composition was in a gel form.

[0037] [Table 1]

[0038] [Table 2]

[0039] [Table 3]

[0040] [Table 4]

[0041] <Preparing hair samples> A commercially available hair bundle (manufactured by Beaulax Co., Ltd., product name: human hair gray hair (BM-W-A)) was prepared as the "gray hair bundle," and a commercially available hair bundle (manufactured by Beaulax Co., Ltd., product name: human hair 50% gray hair (BM-MIX-K50-A)) was prepared as the "hair bundle with 50% gray hair and 50% black hair." In addition, a commercially available hair bundle (manufactured by Beaulax Co., Ltd., product name: human hair equivalent to Level 9 (9LV-A)) was prepared as the "hair bundle with high brown brightness."

[0042] <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.

[0043] <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.

[0044] <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 four items of (1) color development of cool colors, (2) hair brightness, (3) hair gloss, and (4) compatibility with gray hair were evaluated by 10 expert panelists. The evaluation criteria for each evaluation item are shown below.

[0045] (1) Cool color development The color development of cool colors in the "gray hair bundle" that had been subjected to the above-mentioned hair dyeing and fading treatments was evaluated according to the following evaluation criteria.

[0046] The cool colors are very vivid on the entire hair: ◎ Cool colors are vivid enough throughout the hair: 〇 Insufficient color development of cool colors on the entire hair: △ Poor color development in cool colors across the entire hair: ×

[0047] Here, the term "vivid cool colors" refers to a state in which the cool colors in hair can be recognized as vivid to the naked eye.

[0048] (2) Hair brightness The brightness of the cool colors in the "high brightness brown hair bundle" that had been subjected to the above-mentioned hair dyeing and fading treatment was evaluated according to the following evaluation criteria.

[0049] The brightness of cool colors is very high throughout the hair: ◎ The brightness of cool colors is high enough throughout the hair: The brightness of cool colors is slightly low for the entire hair: △ Low brightness of cool colors throughout the hair: ×

[0050] (3) Hair shine The luster of the "high brightness brown hair bundle" that had been subjected to the above-mentioned hair dyeing and fading treatment was evaluated according to the following evaluation criteria.

[0051] Very shiny: ◎ Shiny:○ Not very shiny: △ No shine: ×

[0052] (4) Getting used to gray hair The hair bundle consisting of 50% gray hair and 50% black hair, which had been subjected to the above-mentioned hair dyeing and fading treatments, was evaluated for its compatibility with gray hair according to the following evaluation criteria.

[0053] 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: ×

[0054] In each of the evaluations (1) to (4) 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.

[0055] As shown in Tables 1 to 3, in Examples 1 to 25, which contain components (A), (B), (C), and (D), and in which the content A [mass%] of component (A), the content B [mass%] of component (B), and the content C [mass%] of component (C) satisfy the relationship of 0.05≦(A+B) / C≦5, it can be seen that the expression of cool colors can be improved, and the component (A) which is a greenish acid dye and the component (B) which is a yellowish acid dye act as components that improve the finish of the hair, thereby improving the brightness and luster of the hair. It can also be seen that the gray hair parts can be suppressed from being conspicuous, improving the compatibility with gray hair. [Industrial Applicability]

[0056] 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 Yellow No. 406, Yellow No. 4, and Yellow No. 203 is contained, Contains at least one of Black No. 401 and Purple No. 401 as component (C), As component (D), 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, when the content of the component (A) is A [mass %], the content of the component (B) is B [mass %], and the content of the component (C) is C [mass %], the relationship of 0.05≦(A+B) / C≦5 is satisfied.

2. The component (A) is Green No. 201 or Green No. 3, The component (B) is Yellow No. 406, The component (C) is Black No.

401.

2. The hair dye composition according to claim 1 .

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