JP2003252729A - Pretreatment agent composition for hair dyeing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a pretreatment agent composition providing excellent levelness for the hair having various hair dyeing histories. <P>SOLUTION: The composition containing a basic dye such as Basic Yellow 57, Basic Red 76, Basic Blue 99, Basic Brown 16, Basic Brown 17, etc., is applied to the hair before hair dyeing, allowed to stand for several minutes and washed away. Then the hair is dyed with an ordinary hair dye so that the healthy hair and the damaged hair are uniformly dyed and fastness to shampoo is improved. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment composition for hair dye which improves level dyeability of hair having various hair dyeing histories. More specifically, it is possible to adsorb a dye depending on the degree of damage to hair that is likely to cause remarkable unevenness in the hair dyeing result due to the treatment of an oxidative hair dye, such as a hair tip portion that is severely damaged. The present invention relates to a pretreatment composition for hair dye, which prevents excessive adsorption of hair and insufficient hair dyeing.

[0002]

2. Description of the Related Art Conventionally, a composition containing a conditioning component such as a protein hydrolyzate has been used as a pretreatment agent for hair dyeing treatment on hair with severe damage such as the tips of hair. However, methods have been proposed for obtaining level dyeing property by protecting the damaged portion of hair. By using this method, a certain effect is recognized in improving the texture after hair dyeing, but the sufficient leveling effect is not yet obtained. In particular, the difference in hair dyeing result between the tip of hair that is severely damaged by repeated dyeing and permanent wave and the new part that is not damaged is remarkable, and even using a conventional pretreatment agent, it remains clear. In the beauty industry, the hair tips have to be treated twice and the like, which requires very complicated work.

[0003]

[Means for Solving the Problems] As a result of intensive studies to solve this problem, it was found that hair having different degrees of damage was obtained by applying a composition containing a basic dye to hair before dyeing. It has been found that even when an oxidative hair dye is applied once, the hair can be uniformly dyed and the shampoo fastness is excellent. That is, the present invention provides a pretreatment composition for hair dyeing, which can improve the uniformity of hair dyeing and also the fastness. Hereinafter, the present invention will be described in detail.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION (1) The invention of claim 1 is characterized by a pretreatment agent composition for hair dyeing, characterized by containing a basic dye. By applying the pretreatment agent for hair dye of the present invention to hair before dyeing, it is possible to satisfactorily suppress fog (a state in which only the tip of the hair is dyed very deeply) and uneven dyeing due to the hair dye. Hair can be evenly dyed. Also, the fastness of shampoo after dyeing can be improved.

The various basic dyes used in the present invention can be blended individually or in a mixture. The blending amount is 0.01 to 2.0% by weight,
If it is less than 01% by weight, the leveling effect cannot be obtained, and if it exceeds 2.0% by weight, the effect cannot be expected to increase. More preferably, it is 0.05 to 1.0% by weight.

To the hair dye pretreatment composition of the present invention, conventionally known cosmetic ingredients may be added and blended within a range that does not impair the effects of the present invention. For example, higher alcohol, liquid paraffin, petrolatum, polyhydric alcohol,
Ester oils, fatty acids, firmness and stiffness imparting agents for protein hydrolysates and amino acids, bactericidal / preservatives, UV absorbers, propellants, silicones and their derivatives, surfactants, thickeners, pH adjusters, alkaline agents , Fragrances, pearling agents and the like.

Of the above-mentioned components, the addition of a protein hydrolyzate synergistically enhances the hair-protecting effect and reduces hair damage, which is particularly preferable. As the protein hydrolyzate, keratin, collagen, gelatin, silk, conchiolin, wheat protein, soybean protein, corn protein and the like, and their 4
Examples include graded derivatives. The amount thereof is preferably 0.5 to 10% by weight from the viewpoint of the hair damage reducing effect.

PH of the hair treatment composition for hair dyeing of the present invention
Is preferably from 2 to 11, and more preferably from 5 to 10, from the viewpoint of improving the leveling effect. If the pH is lower than 2 or higher than 11, irritation to the scalp may occur. On the other hand, when it is larger than 11, not only the effect of improving the fastness is lost but also hair damage is caused, which is not preferable. The method for adjusting the pH is not particularly limited, and it may be adjusted with a commonly used acid and / or alkali. Also,
It is also possible to give the product of the present invention a buffering capacity.

The hair treatment composition for hair dyeing of the present invention can be in the form of liquid, emulsion, cream, gel, paste, mist or aerosol foam. Among these, from the viewpoint of ease of use and effects, it is particularly preferably liquid, emulsion, mist or aerosol foam. The most effective application method of the hair treatment agent of the present invention is to apply 1 to 10 after uniformly applying to the hair as a pretreatment agent.
It is a method in which the hair is left for a minute, rinsed with warm water, dried, and then treated with a hair dye. Therefore, if it is a viscous form such as cream or gel, it is difficult to apply it uniformly,
Therefore, it may not be possible to expect a sufficient effect.

In the present invention, the effect of the present invention can be obtained only by using the basic dye-containing composition as a pretreatment agent. On the other hand, the case where the basic dye was blended into the hair dye at the same time was also examined, but good results have not been obtained. For example, if the target hair dye is an oxidative hair dye, there is a large variation in hair dyeing results depending on the degree of hair damage, which makes it difficult to predict the result. Although the effect of the basic dye is sufficient for a short time, the effect of the basic dye appears excessively because the coloring time of the oxidative hair dye requires a relatively long time (tens of minutes). It is considered that the cause is the loss of the balance of hair color. Further, problems such as poor storage stability of the basic dye occurred. When the target hair dye is a semi-permanent hair dye (acid hair dye), due to the difference in ionicity between the basic dye and the acid dye,
The effect was not obtained. Also, no effect was obtained when used as a post-treatment agent. The hair treatment agent of the present invention does not have the effect of uniformizing the state of uneven dyeing of hair that has already been dyed with an oxidative hair dye.

(2) In the invention of claim 2, the basic dye is
Basic Blue 99, Basic Brown
16, Basic Brown 17, Basic
The pretreatment agent composition for hair dyeing according to claim 1, which is one or more selected from the group consisting of Red 76 and Basic Yellow 57.

In the hair dye pretreatment composition of the present invention, the level dyeing property can be enhanced by using the above basic dye. These basic dyes have a good leveling effect even when used alone, but by combining two or more of them, a color close to the color tone of the target hair dye (hair dye to be applied after pretreatment) is prepared. By doing so, the level dyeing property can be further enhanced.

(3) In the invention of claim 3, the basic dye is B
The subject matter is the pretreatment agent composition for hair dyeing according to claim 1 or 2, characterized in that it is asic Brown 17. The color of this Basic Brown 17 is
It is preferable for correcting the color tone of Japanese hair, and when an ordinary black to brown hair dye is used, a good effect can be obtained by itself.

(4) The invention of claim 4 is for use before applying an oxidative hair dye, and any one of claims 1 to 3 is used.
The gist is the pretreatment composition for hair dyeing according to the item. The hair dye that is the target of the hair treatment composition for hair dyeing of the present invention is preferably an oxidative hair dye, and it is possible to satisfactorily suppress fog and uneven dyeing on the tips due to the oxidative hair dye.

The oxidative hair dye is generally an oxidative dye (main intermediate and coupler) in a suitable medium such as liquid or cream.
It is composed of a first agent containing H.sub.2 and a second agent containing hydrogen peroxide, and it mixes the two at the time of use to oxidize and develop a dye, which is also called a permanent hair dye. In addition, there are powdered hair dyes that can be blended at the same time with the dye by using a solid oxidizing agent such as sodium percarbonate, sodium perborate or sodium bromate instead of hydrogen peroxide, Dissolve in water and use.

As the oxidation dye, p-phenylenediamine, toluene-2,5-diamine, N-phenyl-p-
Phenylenediamine, 4,4'-diaminodiphenylamine, p-aminophenol, o-aminophenol,
Main intermediates such as p-methylaminophenol, o-chloro-p-phenylenediamine and 2,4-diaminophenol, resorcin, catechol, pyrogallol,
Phloroglucin, gallic acid, hydroquinone, 5-amino-o-cresol, m-aminophenol, 5- (2
-Hydroxyethylamino) -2-methylphenol,
m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4-diamine, α-naphthol, 2,6-diaminopyridine, diphenylamine,
Examples include couplers such as 3,3′-iminodiphenyl, 1,5-dihydroxynaphthalene and tannic acid. In addition, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, 2-
Nitro-p-phenylenediamine, p-nitro-o-phenylenediamine, p-nitro-m-phenylenediamine, N, N'-bis (4-aminophenyl) -2,5-
Diamino-1,4-quinonediimine, 2-hydroxy-
5-nitro-2 ', 4'-diaminoazobenzene-5'
Direct dyes such as sodium sulfonate, piclamic acid, sodium picramate, 1-amino-4-methylaminoanthraquinone, 1,4-diaminoanthraquinone and hematein may be incorporated.

[0017]

EXAMPLES Next, the present invention will be specifically described with reference to examples, but the present invention is not limited to the description of the following examples unless it exceeds the gist.

First, the compositions of the oxidative hair dyes 1 and 2 used in this test are shown below. In addition, this oxidative hair dye mixes 1 and 2 at a ratio of 1: 1 at the time of use, and after applying to hair, it is left for 20 minutes and rinsed off. If it is normal healthy hair, it becomes a greenish brown. It can be dyed.

<Oxidative hair dye for test> <1 agent>% by weight Paraphenylenediamine 0.2 Resorcin 1.0 Para-aminophenol 0.5 2,6-diaminopyridine 0.2 Cetyl alcohol 5.0 Polyethylene glycol 5.0 Polyoxyethylene (20) cetyl ether 8.0 Sodium dodecyl sulfate 1.2 Strong ammonia water 5.0 Ascorbic acid 0.5 Purified water Suitable amount <2 agents> wt% Hydrogen peroxide (35%) 17.0 Purified water Suitable amount

Next, a method for preparing the hair bundle used in the test will be described. <Adjustment of hair bundle> A 30 cm human black hair bundle was subjected to the following treatment from the tips of hair to prepare experimental hair. 1. 20c from the tip of the hair
m is a commercially available bleaching agent (view teen bleaching experience;
Hoyu Co., Ltd.) was used to perform the treatment in accordance with the instructions in the instruction manual for decolorization. Using a commercially available hybridizing agent (View Teen Mega Bleach Experience; Hoyu Co., Ltd.) for the hair bundle treated with 2.1, further 10 cm from the tip of the hair,
The treatment was performed according to the instructions in the instruction manual, and the color was removed. As a result, hair having different degrees of damage from hair tips to roots was prepared in three stages.

Examples 1 and 2 Table 1 shows the compositions of the hair dye pretreatment compositions of Examples 1 and 2 and Comparative Examples 1 to 3.

[0022]

[Table 1]

Comparative Examples 1 to 3 are pretreatment agents using components generally incorporated in a treatment agent for repairing damaged hair, and Examples 1 and 2 are those in which a small amount of a basic dye is further incorporated. is there. <Experiment> The hair dye pretreatment compositions of Examples 1 and 2 and Comparative Examples 1 to 3 were evenly applied to the above-treated 30 cm human black hair bundle, left for 3 minutes, and then rinsed with warm water. . After air-drying with a dryer, hair was dyed with the above-mentioned trial oxidation hair dye. Hair dyeing treatment was performed by a conventional method.

<Evaluation> (1) Level dyeability The leveling property after dyeing the hair was visually observed according to the following criteria. ◎; There is no difference in color tone between the root and the tip of the hair ○: There is little difference in color tone between the root and the tip of the hair △: There is a slight difference in color tone between the root and the tip of the hair ×: There is a large difference in color tone between the root and the tip of the hair

(2) Fastness to shampoo As an evaluation of fastness to shampoo, each hair bundle was immersed in a 1% sodium lauryl sulfate aqueous solution instead of shampoo treatment and gently stirred for 30 minutes. Then, the hair bundle was taken out, and the color strength of the residual liquid dissolved in the aqueous solution was observed. Since this treatment shows the same color fading as when a normal shampoo is repeated about 20 times, it is used as a simple method for evaluating the color fading. It was evaluated visually according to the following criteria. ◎: The residual liquid has a slight color ○: The residual liquid has a color Δ: The residual liquid has a deep color ×: The residual liquid has a very dark color The above results are shown in Table 2. Show.

[0026]

[Table 2]

The hair tresses treated with the pretreatment agents of Examples 1 and 2 were dyed a light brown color, and Comparative Examples 1 to 3 remained the color when decolorized. When this hair was treated with the oxidative hair dye, only Example 1 was dyed a uniform greenish brown throughout. In Comparative Examples 1 to 3, color unevenness was observed from the hair tips to the roots, and particularly in Comparative Examples 1 and 3, the hair tips were dyed too much and the hair was dyed black to black.

The fastness is good in Examples 1 and 2, but
In the comparative example, it was Δ to ×. In addition, comparing Examples 1 and 2, it was suggested that Example 2 containing the protein hydrolyzate had a clearly better feel on the hair and that hair damage due to the hair dyeing treatment was suppressed.

Examples 3 to 6 The compositions of Examples 3 to 6 are shown in Table 3.

[0030]

[Table 3]

Similar experiments were carried out for Examples 3 to 6 as well, and as with Example 1, good levelness and fastness could be confirmed. Also, the feel of the hair was good.

Next, the technical idea which can be understood from the above embodiment will be described below. (1) The pretreatment composition for hair dye according to any one of claims 1 to 4, further comprising a protein hydrolyzate. With this configuration, the effect of protecting the hair is increased, and hair damage due to the hair dyeing treatment can be reduced.

(2) The pretreatment composition for hair dye according to any one of claims 1 to 4 and (1) above, wherein the pH is adjusted to 2-11. According to this structure, the level dyeing effect can be further improved.

(3) The dosage form is emulsion, solution, mist or foam, and any one of (1) to (4) and (1) and (2) above. The pretreatment agent composition for hair dyeing according to 1. With this configuration, it is possible to easily and evenly apply it to the entire hair, and it is possible to impart the effect evenly to the entire hair.

[0035]

EFFECT OF THE INVENTION Since the pretreatment agent for hair dye of the present invention is constituted as described above, by applying it to the hair before dyeing, the fog on the tip of the hair or uneven dyeing by the hair dye is excellent. The hair can be suppressed and the hair can be dyed uniformly. Furthermore, the shampoo fastness of dyed hair can be improved.

Claims (4)

[Claims] 1. A pretreatment composition for hair dye, which comprises a basic dye. 2. The basic dye is Basic Blue.
99, Basic Brown 16, Basic B
row 17, Basic Red 76 and Bas
The pretreatment composition for hair dye according to claim 1, wherein the pretreatment composition for hair dye is one or more selected from the group consisting of ic Yellow 57. 3. The basic dye is Basic Brown.
17. The pretreatment composition for hair dye according to claim 1, which is 17. 4. The hair dye pretreatment composition according to any one of claims 1 to 3, which is used before applying an oxidative hair dye.