JPH1171247A - Hair-dyeing agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair-dyeing agent composition improved in the properties of the composition, not sensitizing skins and having a blue color tone by adding two kinds of specific aminomethylphenols to a hair-dyeing agent composition containing a aminobishydroxyethylaminobenzene as a color developer. SOLUTION: This hair-dyeing agent composition based on a developer/ coupling agent system to be reacted with a peroxide contains (A) 1-amino-4-bis(2'-hydroxyethyl)aminobenzene or its water-soluble salt as a color developer, (B) 5-amino-2-methylphenol, (C) 4-amino-3-methylphenol, and preferably further an additional coupling agent such as resorcinol, 2-methylresorcinol, 4- chlororesorcinol, 3-aminophenol, 2-aminophenol, 2-amino-4-(β-hydroxyethylamino) anisol or one of their water-soluble salts, α-naphthol or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hair dye composition based on a color developing / coupling system to react with peroxide. The hair dye composition of the present invention provides an expressive, glossy and non-fading blue basic coloring, and can be used as it is, or can be used in combination with other developers and / or
Or by using in combination with a coupling agent,
A deeper shade can be achieved.

[0002]

BACKGROUND OF THE INVENTION The most frequently used developers in hair dye compositions are still 1,4-diaminobenzene (p-phenylenediamine) and 1-methyl-2,5-diaminobenzene (p-toluene). Range amine). However, the use of these substances is not always optimal, since very sensitive individuals (so-called "allergic individuals") may be sensitized to the skin.
To solve this problem, various other color developers have been proposed. This skin sensitization can be alleviated to some extent with tetraaminopyrimidine or 2- (2,5-diaminophenyl) ethanol. (European Patent Application No. 7,537 and European Patent No. 400,3)
However, in this case, the diversification to color strength and other shades must be considerably sacrificed. 1-amino-4-bis- (2'-hydroxyethyl) aminobenzene (N, N-bis- (2-hydroxyethyl) -p-phenylenediamine) and a salt thereof as a color developer for a hair dye composition It has also been proposed for use and is listed as A50 in the EC pre-approved list of hair dyes. However, even when this substance is used in combination with a usual coupling agent, the problem relating to the color tone of the hair dye has not been solved.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides
Improves the properties of a hair dye composition containing amino-4-bis- (2'-hydroxyethyl) aminobenzene or a water-soluble salt thereof as a color developer, and has a blue color without causing skin sensitization. An object of the present invention is to provide a hair dye composition.

[0004]

In order to solve the above-mentioned problems, the present invention provides a hair dye composition based on a color development / coupling system which reacts with a peroxide by (a) 1-amino-4.
-Bis- (2'-hydroxyethyl) aminobenzene or a water-soluble salt thereof, (b) 5-amino-2-methylphenol, and (c) 4-amino-3-methylphenol in combination. .

[0005]

When the composition is applied to human hair on a conventional carrier basis, a very expressive intense blue base shade is achieved after oxidation with peroxide. However, at that time, the color tone can be changed to achieve a different color tone by further adding an appropriate coupling agent. Such additional desirable coupling agents include, for example, in particular resorcin, 2-methylresorcin, 4-chlororesorcin, 3-aminophenol, 2-aminophenol, 2-amino-4-β-hydroxyethylaminoanisole or A water-soluble salt of
And α-naphthol. Of course, these in no way preclude the additional use of other coupling agents.

It is also possible to additionally use other known developers. For example, in addition to the above-mentioned compounds, particular mention may be made of 4-aminophenol, 5-aminosalicylic acid and / or hydroxytriaminopyrimidine described in EP 467,026. Similarly, 2,4,5-triamino-6-hydroxypyrimidine and 4,5,6-triamino-2-hydroxypyrimidine described in the above-mentioned EP 467,026 are preferably used, These are preferably used as sulfates.

[0007] The concentration of the developer is from about 0.05% to about the weight of the total hair dye composition excluding the oxidizing agent, based on the free base.
5%, preferably about 0.1% to 4%, particularly preferably about 0.25% to 0.5% and about 2.5% to 3%. In the hair dye composition of the present invention, the amount of the coupling agent to be reacted with the color developer is almost the same as that of the color developer, that is, based on the free base of the entire hair color composition excluding the oxidizing agent. From about 0.05% to 5%, preferably from about 0.1% to 4%, particularly preferably from about 0.5% to 3% of the weight obtained.

[0008] The composition of the present invention may be used as a so-called color adjuster (shade mo) for fine adjustment to obtain a desired color tone.
modifiers, especially direct dyes. As such a color adjuster, for example, 2-amino-4,6-
Examples thereof include nitro dyes such as dinitrophenol, 2-amino-4-nitrophenol, and 2-amino-6-chloro-4-nitrophenol, and preferably about 0. It is used in a proportion of from 0.05% to 2.5%, particularly preferably from about 0.1% to 1%.

[0009] The hair dye composition of the present invention may contain all known carrier substances, additives, conditioning agents and the like usually used in such compositions. Such substances are
For example, K. Schrader
He wrote an academic paper, "Basics and Formulation of Cosmetics (Grudge
n und Rezepturen der Kosm
etika) "2nd edition (Hutik Buch Verlag, Heidelberg, 1989), pages 782 to 81.
It is described on page 5. They can be formulated as liquids, creams, gels or aerosols. Suitable carrier compositions are well known to those skilled in the art.

Prior to use, the oxidation dye precursor composition of the present invention is mixed with an oxidizing agent. A preferred oxidizing agent is hydrogen peroxide, for example, used at a concentration of 2 to 6% by weight. However, other peroxides such as urea peroxide and melamine peroxide can also be used. The pH value of the hair dye composition ready for use, i.e. after mixing with peroxide, can be adjusted within a weakly acidic range, i.e. 5.5-6.9, and Or within the range of alkalinity,
That is, it may be 7.1 to 9.5.

[0011]

EXAMPLES The present invention will be described below in detail with reference to examples, but these examples do not limit the present invention.
In the following examples, a basic composition having the composition shown in Table 1 below was used, and a part of the water in the basic composition was used for the developer and the coupling agent described in each example. The one replaced by the combination was used as a dye composition.

[0012]

[Table 1]

For dyeing, a 1: 1 mixture of the dye precursor formulation and a 6% hydrogen peroxide solution was applied onto a piece of wool and a braided tress of bleached human hair and treated at room temperature for 20 minutes. Later, the samples were washed and dried. The compositions (% by weight based on the total composition) of the developer and the coupling agent used in each Example and the obtained dyeing results are shown below. In the following examples, A50 represents 1-amino-4-bis- (2′-hydroxyethyl) aminobenzene sulfate.

(Example 1) A50 0.33 4-Amino-3-methylphenol 0.14 5-Amino-2-methylphenol 0.28 Color: deep blue-violet

(Comparative Example 1)
When dyeing using a composition excluding 3-methylphenol, the color became blue having a red tint, but the color was not suitable for practical use.

Example 2 A50 0.36 4-Amino-3-methylphenol 0.14 5-Amino-2-methylphenol 0.10 3-Aminophenol 0.08 Resorcinol 0.08 Color: Strong gray purple

(Example 3) A50 0.33 4-amino-3-methylphenol 0.14 5-amino-2-methylphenol 0.14 2-amino-4- (2'-hydroxy 0.31 ethylamino ) Anisole sulfate Color: strong gray blue

Example 4 A50 0.33 4-amino-3-methylphenol 0.14 5-amino-2-methylphenol 0.14 3-amino-2-methylamino-6-0.26 methoxypyridine Sulfate Color: dark grayish blue

(Example 5) A50 0.33 4-amino-3-methylphenol 0.14 5-amino-2-methylphenol 0.14 α-naphthol 0.16 Color development: strong gray purple

In the above embodiment, the color name is "Taschenlexikon der F"
arben], 3rd edition [Mster-Schmidt V, 1981]
erlag), Zurich and Göttingen]
In accordance with the classification used in.

[0021]

According to the present invention, the color developed by reacting with a peroxide /
(A) 1-amino-4-bis- (2′-hydroxyethyl) aminobenzene or a water-soluble salt thereof, (b) 5-amino-2-methylphenol, And (c) containing 4-amino-3-methylphenol in combination to improve the properties of the hair dye composition. The hair dye composition of the present invention does not cause a problem of skin sensitization and provides a glossy and non-fading blue basic coloring, and can be used as it is, or other color developing agents When used in combination with a coupling agent and / or a coupling agent, a deeper color tone can be achieved, and the invention has a high practical value.

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[Procedure amendment]

[Submission date] November 7, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

The present invention relates to a hair dye composition based on a color developing / coupling system to react with peroxide. The hair dye composition of the present invention provides a bluish basic color which is rich in expression, is glossy and does not fade, and can be used as it is, or can be used in combination with other developers and / or coupling agents. When used in combination, a deeper color tone can be achieved.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0002

[Correction method] Change

[Correction contents]

[0002]

BACKGROUND OF THE INVENTION The most frequently used developers for hair dye compositions are still 1,4-diaminobenzene (p-phenylenediamine) and 1-methyl-2,5-diaminobenzene (p- toluene). Diamine). However,
The use of these substances is not always optimal as it can lead to very sensitized individuals (so-called "allergic individuals") to skin sensitization. To solve this problem, various other color developers have been proposed. This skin sensitization can be alleviated to some extent with tetraaminopyrimidine or 2- (2,5-diaminophenyl) ethanol. (European Patent Application No. 7,537 and European Patent No. 400,330)
However, in this case, the diversification to color strength and other shades must be considerably sacrificed. 1-amino-4-bis- (2'-hydroxyethyl) aminobenzene (N, N-bis- (2-hydroxyethyl) -p-phenylenediamine) and a salt thereof as a color developer for a hair dye composition It has also been proposed for use and is listed as A50 in the EC pre-approved list of hair dyes. However, even when this substance is used in combination with a usual coupling agent, the problem relating to the color tone of the hair dye has not been solved.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

[0021]

According to the present invention, the color developed by reacting with a peroxide /
(A) 1-amino-4-bis- (2′-hydroxyethyl) aminobenzene or a water-soluble salt thereof, (b) 5-amino-2-methylphenol, And (c) containing 4-amino-3-methylphenol in combination to improve the properties of the hair dye composition. The hair dye composition of the present invention does not cause a problem of skin sensitization and provides a glossy and non-fading bluish basic color , which can be used as it is, or other color developing agents and By using in combination with a coupling agent, a deeper color tone can be achieved, and the invention has a high practical value.

Claims (2)

[Claims] 1. A hair dye composition based on a color development / coupling system reacted with a peroxide, wherein (a) 1-amino-4-bis- (2′-hydroxyethyl) aminobenzene or its water-soluble property A hair dye composition comprising a salt, (b) 5-amino-2-methylphenol, and (c) 4-amino-3-methylphenol. 2. Resorcinol, 2-methylresorcinol, 4
The group consisting of -chlororesorcin, 3-aminophenol, α-naphthol, 3-amino-2-methylamino-6-methoxypyridine and 2-amino-4- (β-hydroxyethylamino) anisole and their water-soluble salts The hair dye composition according to claim 1, comprising at least one additional coupling agent selected from the group consisting of: