JPH01311012A - Hair dye composition - Google Patents

Abstract

PURPOSE:To obtain a hair dye composition, containing diaminomaleonitriles or salts thereof as an active ingredient and capable of exhibiting excellent hair dyeing properties within the neutral region. CONSTITUTION:The objective substance obtained by containing diaminomaleonitriles expressed by the formula (R1 and R2 are H or 1-4C lover alkyl) or salts thereof as an active ingredient, suitably blending alcohols, perfumes, etc., and preparing a formulation by a conventional method. In the hair dye composition, the concentration of the active ingredient expressed by the formula is 0.01-30%. The above-mentioned composition can be prepared in the form of a liquid or cream and blended with various cosmetic compositions for hair, such as styling jell or styling smooth composition for use. The compound expressed by the formula is capable of effectively dyeing gray hair to brown or black and blond to natural deep dark blond.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a hair dye composition, particularly a hair dye composition having excellent hair dyeing properties in the neutral range.

[Prior Art] Conventionally, oxidative hair dyes containing oxidative dyes such as para-phenylene diamine, para-aminophenol, and resorcinol as active ingredients have been mainly used for hair dyeing. These conventional oxidative hair dyes require the combined use of an oxidizing agent, and peroxides such as hydrogen peroxide and perborates are used.

Further, conventional oxidative hair dyes contain basic compounds such as ammonia and monoethanolamine in order to promote hair swelling and decomposition of peroxide.

[Problem to be solved by the invention]

However, the above-mentioned oxidizing agents and basic compounds are irritating to the skin, eyes, and scalp, and also cause hair damage by weakening the hair by rupturing the chemical bonds of cystine that makes up the hair. Oxidation dyes such as paraphenylenediamine are generally highly toxic and have problems when used as hair dyeing components in hair dye compositions.

Therefore, there has been a desire for a hair dye composition that has a mild hair dyeing effect and can dye hair in a neutral range without irritating the skin. As such hair dye compositions, those using vegetable dyes such as henna and chamomile, acid dyes, basic dyes, etc., and those containing metal salts and metal-containing dyes as active ingredients have been developed. However, the former hair dye composition has poor dyeability, and the latter hair dye composition has problems such as adversely affecting perm treatment due to metal ions. In addition, pigments containing pigments such as carbon black as active ingredients have a number of problems, such as merely physically adhering to the hair surface, causing color transfer and worsening the feel of the hair.

Therefore, an object of the present invention is to provide a hair dye composition that can gently dye hair in a neutral range and has excellent hair dyeing properties.

[Means to solve the problem]

As a result of various studies to achieve the above object, the present inventors have discovered that diaminomaleonitrile or its salt can effectively dye gray hair brown or black, and that it can also dye blonde hair naturally and deep dark blonde. I found out that.

The present invention has been made based on the above findings, and achieves the above object by providing a hair dye composition containing diaminomaleonitriles represented by the following general formula [I] or a salt thereof as an active ingredient. This is what I did.

NCCN [In the above general formula, R, and R1 each represent a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms] The hair dye composition of the present invention will be described in detail below.

The hair dye composition of the present invention contains diaminomaleonitriles represented by the above general formula [I] or a salt thereof as an active ingredient, and examples of the diaminomaleonitriles include diaminomaleonitrile, N-methyldiamin Examples include maleonitrile, N,N-dimethylamino maleonitrile, and diaminomaleonitrile is particularly preferred.

Preferred salts of the diaminomaleonitriles include inorganic acid salts such as hydrochloric acid, nitric acid, and sulfuric acid, and organic acid salts such as acetic acid, formic acid, oxalic acid, and citric acid, with sulfates being particularly preferred. .

The hair dye composition of the present invention only needs to contain the above-mentioned diaminomaleonitriles or a salt thereof as an active ingredient,
Regarding other components, there are particular limits to 000, and various aspects (
For example, the above-mentioned active ingredients are used by blending them into various hair cosmetic compositions such as styling gel compositions or styling mousse compositions. It is used in combination with agents.

When the composition is incorporated into the above-mentioned hair cosmetic composition, one whose base is emulsifying or aqueous is selected as appropriate, but it is preferable that the base is aqueous, and the pH of the composition is It is preferable that the pH is adjusted to 6 to 8. Also, when used as an aqueous solution, it is preferable to adjust the pH to 6 to 8.

In addition, the hair dye composition of the present invention can be used, for example, in liquid or two-component liquid or cream hair dyes, lotion type hair dyes,
When used in any form (form) such as cream type or aerosol type colored hair preparations, the concentration of the above active ingredients in the hair dye composition at the time of use should be 0.01 to 30.
%, more preferably 1 to 10%. If the concentration of the active ingredient is less than 0.01%, the hair dyeing effect is difficult to be exhibited, and on the other hand, if the concentration exceeds 30%, the hair becomes brittle. There is a possibility that

Next, a hair dyeing method using the hair dye composition of the present invention using diaminomaleonitrile as an active ingredient will be described.

First, dissolve an appropriate amount of diaminomaleonitrile in water, add alcohols, fragrances, and other hair dyeing aids as necessary to adjust the concentration of diaminomaleonitrile to the above range, and then adjust the pH with sodium hydroxide or the like. Adjust to a range of 3 to 12.

Next, after applying the hair dye solution (hair dye composition) prepared in this way to the hair, the hair is washed with water and left in the air for a predetermined period of time.For example, gray hair is treated for 5 to 40 minutes. A series of operations such as washing with water and drying are performed multiple times as one process.

As a result, gray hair can be appropriately dyed from light brown to black.

When dyeing the hair, the shade of the dyed hair can be adjusted as appropriate by the concentration of diaminomaleonitrile in the hair dye solution and the processing time of the hair dye solution, and if necessary, it is possible to add depth to the brown color. You can dye your hair.

In addition, when hair is dyed using a hair dye composition in which diaminomaleonitrile or its salt is blended into a styling gel composition or a styling mousse composition, the hair dye composition is applied to the hair and used repeatedly. By doing this, you can gradually dye your hair without any discomfort. Furthermore, by dyeing hair in streaks and parts using the hair dye composition, a color gradation can be imparted to the hair, and beautiful shadows can be formed.

Of course, the hair dye composition of the present invention can be used to dye not only gray hair but also so-called gray-blond hair to a deep dark blonde that is as natural as gray hair.

[For production]

According to the hair dye composition of the present invention, diaminomaleonitriles or their salts penetrate into the hair and chemically bond with internal tissues such as cystine that make up the hair to dye the hair. Unlike traditional hair dye compositions, in which the dye simply adheres to the outside of the hair, there is no risk of staining hands, nape, or clothing due to removal of dye due to friction, and peroxide There is no need for oxidizing agents such as oxidizing agents, and hair can be effectively dyed even in the neutral range.In addition, by multiple oral hair dye treatments, gray hair can be gradually dyed black or blonde hair can be gradually dyed. You can dye your hair a deep dark blonde.

[Examples] Hereinafter, the hair dye composition of the present invention and the hair dyeing method using the hair dye composition will be explained based on the following examples.

Example 1 Hair dye compositions (prescription liquids A to F) shown in Table 1 below were prepared, and hair was dyed using each of the prescription liquids A to F according to the following method, and the following results were obtained. In addition, each prescription solution A-F is ilK]
During the W treatment, the pH was adjusted to 7 using sodium hydroxide as a pH1FI adjuster.

[Hair dyeing method]

Each hair bundle (sample) weighs approximately 1 g and is approximately 9 cm long.
Gray hair and blonde hair of M were used. Prescription liquids A to F were applied to the hair bundles at a bath ratio of 1:1, and after being left for 30 minutes, the hair strands were washed with water, dried, and left in the air for one day. This series of operations was considered as one process, and this process was repeated multiple times.

[Results] When using any of the formulations (IA-F), each hair strand started to be dyed light brown after the second hair dyeing treatment, and after 200
At the end of the second hair dyeing process, gray hair was dyed blackish brown, blonde hair was dyed deep dark blonde, and both were unevenly dyed.

Table 1 $1) Xanthan gum (Keltrol; manufactured by Kelco) Example 2 The hair strands used in Example 1 were each subjected to the following bleach treatment, and then dyed in the same manner as in Example 1. The following results were obtained.

(Bleach treatment) Apply a bleach treatment solution containing equal amounts of B, agent, and B2 agent shown in Table 2 below at a bath ratio of 1:1 to the hair strands, leave for 30 minutes, and then wash with water. Dry.

Table 2 [Results] When using any of the prescription liquids A to F, each hair strand started to be dyed light brown after the first hair dyeing process, and by the end of the 15th hair dyeing process, the hair became gray. The hair was dyed blackish brown, and the blonde was dyed deep dark brown, and both were dyed evenly.

Example 3 A styling gel composition (hair dye composition of the present invention) consisting of the following composition was prepared by blending diaminomaleonitrile ■ with a styling gel composition consisting of the following ingredients ■ to ■. Hair was dyed using the following method, and the following results were obtained. The squilling gel composition was prepared as follows.

Add the following ingredients ■, ■, and ■ to the following ingredients ■, warm them, and homogenize them. After cooling, add the mixture of the following ingredients ■, ■, ■, and ■, and stir to form a styling gel composition. Obtained.

■2-hexyldecyltrimethylammonium chloride 0.5% ■The following general formula (II
) Polyether-modified silicone ([in formula 83,
5=25. t-4゜u-10, v=o, A=OH)
1.0%■Cationized small cellulose remer JR-400) 2.0%■Hydroxyethyl cellulose 0.5%■Polyoxyethylene oleyl ether (E O = 5)
0.3% ■Fragrance
0.15% water
Balance ■ Diaminomaleonitrile 1.0%
100.0% (OCzlli)ll(OCzlli)v^ (Hair dyeing method and results) The above squilling gel compositions were each applied to the same hair tresses as used in Example 1. After 12 hours had elapsed, the hair in each hair strand began to be dyed light brown, and after about a week of continuous use, the gray hair was dyed dark brown, making the gray hair less noticeable.

Example 4 A styling mousse composition (hair dye composition of the present invention) having the following composition was prepared by blending diaminomaleonitrile (■) into a styling mousse composition consisting of the following ingredients (■ to ■), and the styling mousse composition was The product was used to dye hair according to the following method, and the following results were obtained. The styling mousse composition was prepared as follows.

Add the following ingredients ■, ■, ■, ■, ■, and ■ to a part of the following ingredient ■ and emulsify each with a homogenizer to obtain an emulsion, then dissolve the following ingredient ■ in the remainder of the following ingredient ■, Add this to the above emulsion, pack them into an aerosol can,
Furthermore, the following component [phase] was filled as a propellant to obtain a styling mousse composition.

■2-Dodecylhexadecyltrimethylammonium chloride 0.5% ■The following general formula (II
Methylphenylpolysiloxane represented by I) ([■]
In the formula, a=0. b=50, c=0)
1.0% ■ Polyether-modified silicone represented by general formula (n) ((in formula 83, 5=6o, t==5.u
=15. v=30. A=OCR*) 1.5%■Ply size L53P" 8.0%■Polyoxyethylene hexadecyl ether (EO=10)
0.5%■Ethanol
5.0% ■Fragrance 0.2
% ■ Water balance ■ Diaminomaleonitrile 1.0% (@l, P
C (4,0kg/c4G, 20°C) 10°0%
100, 0% ((Calls)zsio) cSi(CHs) + [Hair dyeing method and results] The above styling mousse compositions were each applied to the same hair strands as used in Example 1. After 12 hours, the hair began to be dyed light brown, and after about one week of continuous use, the gray hair was dyed dark brown, making the gray hair less noticeable.

In addition, although the above examples are only about hair dye compositions containing diaminomaleonitrile as an active ingredient, similar effects were obtained when other diaminomaleonitriles or salts thereof were used.

[Effects of the Invention] The hair dye composition of the present invention can gently dye hair in a neutral range and has excellent hair dyeing properties.

Claims (1)

[Scope of Claims] A hair dye composition containing a diaminomaleonitrile represented by the following formula [I] or a salt thereof as an active ingredient. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ [I] [In the above general formula, R_1 and R_2 each represent a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms. ]