KR20120138655A - Oxidation hair dye - Google Patents

Abstract

PURPOSE: An oxidative hairdye containing polyacrylic acid amide and carboxyvinyl polymers is provided to ensure hair gross. CONSTITUTION: An oxidative hairdye contains a first agent containing oxidative dye and a second agent containing oxidant. The hairdye is mixed with polyacrylic acid amide and carboxyvinyl polymers. The hairdye is mixed with cationic polymers or anionic polymers.

Description

Oxidation hair dye {OXIDATION HAIR DYE}

The present invention relates to an oxidative hair dye obtained by mixing a first agent containing an oxidizing dye and a second agent containing an oxidizing agent before hair dyeing treatment.

As a coloring agent used for coloring hair, the oxidation hair dye which mix | blended the oxidation dye, the acid hair dye which mix | blended the acid dye, etc. are mentioned. The oxidative hair dye is of the hair dye principle of dyeing the oxidative dye penetrated into the hair by oxidative polymerization, and is different from the hair dye principle of an acid hair dye. Oxidative hair dyes realize long term persistence of color retention of hair. When using an oxidizing hair dye, the viscosity by the use method may be required. For example, Patent Literature 1 discloses a carboxyvinyl polymer and / or an acrylate-alkyl methacrylate copolymer in order to provide excellent operability, such as mixing a first agent and a second agent for obtaining an oxidizing hair dye, and applying an oxidizing hair dye to hair. There is a proposal of a hair dye composition containing a copolymer and a copolymer of acrylic acid amide and 2-acrylic acid amide-2 methylpropanesulfonic acid.

Patent Document 1: Japanese Patent Application Laid-Open No. 2001-328927

By the way, while the operability at the time of using an oxidizing hair dye is requested | required, there also exists a request about the dyed hair after the use, and the request of the hair dyeing procedure. That is, it is a request to reduce the stiffness at the time of wash | cleaning dyed hair gloss, dyeability to hair, trimming of a hair tip, and an oxidizing hair dye from hair.

In view of the above circumstances, an object of the present invention is to provide an oxidative hair dye that can at least improve the gloss of dyed hair.

The present inventors earnestly examined to improve the hair gloss after using the oxidative hair dye, and found that blending polyacrylic acid amide and carboxyvinyl polymer with the oxidative hair dye improves the hair gloss. Reached.

That is, the oxidizing hair dye according to the present invention is obtained by mixing the first agent in which the oxidizing dye is blended with the second agent in which the oxidizing agent is blended, and is characterized in that the polyacrylic acid amide and the carboxyvinyl polymer are blended. By using this oxidation hair dye, at least the gloss of the dyed hair can be improved, and in addition, the dyeability to the hair and the trimming of the hair tip are also improved.

It is preferable that the cationic polymer is mix | blended with the oxidation hair dye which concerns on this invention. When the cationic polymer is blended, the trimming to the ends of the hair is improved, and the stiffness when washing the oxidative hair dye from the hair can be reduced.

The oxidation hair dye according to the present invention preferably has a higher concentration than that of the anionic polymer other than the carboxyvinyl polymer. Moreover, it is more preferable that the compounding density | concentration of anionic polymers other than a carboxyvinyl polymer is 0.5 mass% or less. Moreover, it is preferable that anionic polymer is not mix | blended. In the case where the carboxyvinyl polymer is blended, the blending of the polyacrylic acid amide is more advantageous than the anionic polymer other than the carboxyvinyl polymer in terms of the glossiness of the dyed hair. desirable. In addition, the anionic polymers other than the carboxyvinyl polymer may be inferior to the polyacrylic acid amide in terms of improving the gloss, or the gloss may be lowered. Therefore, in the oxidation hair dye according to the present invention, other than the carboxyvinyl polymer As for the compounding density | concentration of anionic polymer, 0.5 mass% or less is preferable. Moreover, it is more preferable that anionic polymer is not mix | blended.

According to the oxidation hair dye according to the present invention, since both polyacrylamide and carboxyvinyl polymer are blended, the gloss of hair after dyeing becomes good.

Based on the oxidation hair dye which concerns on this embodiment, this invention is demonstrated below.

(Oxidation hair dye)

The oxidation hair dye according to the present embodiment is obtained by mixing the first agent and the second agent in the same manner as the known oxidation hair dye, and a polyacrylic acid amide and a carboxyvinyl polymer are blended (a typical thing as the oxidation hair dye of the present embodiment is The compounding quantity of water is 70 mass% or more). The oxidative hair dye blended with these polyacrylamides and carboxyvinyl polymers improves the gloss of the hair after use, and also the dyeing of the hair after use and the trimming up to the hair end. Moreover, the thing in which the cationic polymer was mix | blended is suitable for the oxidation hair dye which concerns on this embodiment.

In addition, the oxidation hair dye of this embodiment is obtained by mixing a 1st agent and a 2nd agent, It is as above-mentioned, Before the mixing, a polyacrylamide amide, a carboxyvinyl polymer, or the 1st agent and / or a 2nd agent, or Cationic polymer is blended.

Polyacrylic acid amide is a copolymer of acrylic acid amide. As for the polyacrylic acid amide blended with the oxidizing hair dye, SNF's "Flocare T 290 GC" and the like are distributed. Moreover, as polyacrylic acid amide mix | blended with another raw material, it is circulated as "Egel 305" of Essential Ingredients, etc. which polyacrylic acid amide, isoparaffin, and polyoxyethylene lauryl ether (7E.O.) were mix | blended.

The compounding concentration of polyacrylic acid amide in the oxidation hair dye of this embodiment is 0.02 mass% or more and 1.5 mass% or less, for example, 0.05 mass% or more and 1.0 mass% or less are preferable, and 0.1 mass% or more and 0.8 mass% or less are preferable. If it is less than 0.02 mass%, the glossiness of hair may not be enough. When it exceeds 1.5 mass%, application | coating to hair may become difficult because the viscosity of an oxidative hair dye becomes too high.

The carboxyvinyl polymer is a copolymer of acrylic acid crosslinked with pentaerythrilly allyl ether, sucrose allyl ether, propylene allyl ether or the like. Carbopol Ult's "Carbopol Ultrez 10 Polymer", "Carbopol 934 Polymer", "Carbopol 940 Polymer", "Carbopol 941 Polymer", "Carbopol 980 Polymer", "Carbopol 981 Polymer", etc., are distributed as carboxyvinyl polymers. .

The compounding density | concentration of the carboxyvinyl polymer in the oxidation hair dye of this embodiment is 0.01 mass% or more and 1.0 mass% or less, for example, 0.03 mass% or more and 0.5 mass% or less is preferable, and 0.05 mass% or more and 0.4 mass% or less are preferable. If it is less than 0.01 mass%, the glossiness of hair may not be enough. When it exceeds 1.0 mass%, application | coating to hair may become difficult because the viscosity of an oxidizing hair dye becomes too high.

Oxidative hair dye of the present embodiment preferably contains a cationic polymer having a quaternary ammonium group. By further mix | blending a cationic polymer, the trimming to the hair tip after use becomes favorable, and the stiffness at the time of washing an oxidizing hair dye from hair is reduced.

Examples of the ionic polymer include chloride O? [2? Hydroxy? 3? (Trimethylammonio) propyl] hydroxyethyl cellulose (polyquaternium? 10) and hydroxyethyl cellulose dimethyldiallylammonium, which are known cationic polymers. Chloride (polyquaternium? 4), chloride O? [2? Hydroxy ??? (trimethylammonio) propyl] guar gum, vinylpyrrolidone? N, N? Dimethylaminoethyl methacrylate copolymer diethyl sulfate (Polyquaternium 11), N, N dimethylaminoethyl methacrylate diethyl sulfate, N, N dimethyl acrylamide, dimethacrylate polyethylene glycol (polyquaternium 52), dimethyl diallyl ammonium chloride Amide copolymer (polyquaternium-7) etc. are mentioned. Among these, poly (O. [2] hydroxy [3] (trimethylammonio) propyl] hydroxyethyl cellulose (polyquaternium? 10) is inexpensive and preferable, and has a nitrogen content of 1.0% to 2.5%. Quarterium-10 should be selected. For example, Leoguard GP and MGP manufactured by Lion Corporation, which are distributed as polyquaternium-10 having a nitrogen content of 1.0% to 2.5%; It is a polymer JR400, JR30M manufactured by Union Carbide Corporation.

The compounding concentration of the cationic polymer in the oxidation hair dye of the present embodiment is, for example, 0.01% by mass or more and 1.0% by mass or less, and preferably 0.1% by mass or more and 0.8% by mass or less. If it is less than 0.01 mass%, the stiffness reduction at the time of trimming to hair tip and washing off may be inadequate. Even if it is the compounding quantity exceeding 1.0 mass%, the trimming to hair tip compared with 1.0 mass% or less, and the stiffness reduction at the time of washing off are not large difference.

Although the oxidative hair dye of this embodiment may be mix | blended with anionic polymers other than a carboxyvinyl polymer, it is optimal that the anionic polymer is not mix | blended.

When anionic polymers other than the carboxyvinyl polymer are blended with the oxidation hair dye of the present embodiment, the blending concentration of the polyacrylic acid amide may be higher than the blending concentration of the anionic polymers other than the carboxyvinyl polymer. In this case, 0.5 mass% or less is preferable, 0.3 mass% or less is preferable, and, as for the compounding density | concentration of anionic polymers other than the carboxyvinyl polymer in the oxidation hair dye of this embodiment, 0.1 mass% or less is more preferable.

Anionic polymers other than the carboxyvinyl polymer are known ones, and may be obtained by a polymerization reaction using acrylic acid, vinyl acetate, or the like. Examples of the anionic polymer include alkyl acrylate copolymer (alkyl acrylate copolymer Na, alkyl acrylate acrylate ammonium, etc.), alkyl acrylate, vinyl acetate copolymer, acrylic acid, acrylamide, and ethyl acrylate copolymer. Can be mentioned.

The compounding density | concentration of the oxidizing dye in the oxidation hair dye of this embodiment is 0.03 mass% or more and 5 mass% or less, for example.

The compounding density | concentration of the oxidizing agent in the oxidizing hair dye of this embodiment is 0.2 mass% or more and 4 mass% or less, for example.

The mixing ratio of the first agent and the second agent for obtaining the oxidizing hair dye of the present embodiment is, for example, the mass of the first agent: the mass of the second agent = 1: 0.5 to 2.

The formulation at the time of use of the oxidative hair dye which concerns on this embodiment is not specifically limited. For example, liquid form, cream form, wax form, gel form, foam form (bubble form) is mentioned. The viscosity of the oxidative hair dye of the present embodiment is preferably a creamy shape in consideration of handling properties such as application to the hair during use and drips.

The pH of the oxidative hair dye of this embodiment is 8.0-12.0, for example. In order to reduce favorable staining and irritation to the scalp, it is 9.0 to 11.0, and 9.5 to 10.5 is preferable.

(The first)

The 1st agent for obtaining the oxidative hair dye of this embodiment is mix | blended with an oxidizing dye. (A typical thing as the 1st agent of this embodiment is a compounding quantity of water is 70 mass% or more.). When all of polyacrylamide, carboxyvinyl polymer, and cationic polymer are not mix | blended with this 1st agent, all of these are mix | blended. In addition, when any one of a polyacrylamide, a carboxyvinyl polymer, and a cationic polymer is mix | blended with the same 2nd agent, the mixing | blending raw material to this 2nd agent is mix | blended suitably also with a 1st agent. In addition, you may mix | blend a well-known 1st agent raw material with the 1st agent which concerns on this embodiment as an arbitrary raw material.

As an oxidizing dye mix | blended with the said 1st agent, the 1 type (s) or 2 or more types chosen from the well-known dye intermediate which colors independently by an oxidation reaction are employ | adopted. Examples of the dye intermediates include phenylenediamine derivatives such as toluene sulfate, 2,5-diamine, nitroparaphenylenediamine hydrochloride and paraphenylenediamine; And phenol derivatives such as hydrochloric acid 2,4-diaminophenol, orthoaminophenol, and paraaminophenol.

As the oxidizing dye of the first agent, one kind or two or more kinds selected from known couplers oxidized by the dye intermediate and exhibiting color tone may be employed. As a coupler, Phenylenediamine derivatives, such as hydrochloric acid 2, 4- diamino phenoxy ethanol and hydrochloric acid metaphenylenediamine; Aminophenol derivatives such as 5-aminoorthocresol and metaaminophenol; Resorcin etc. are mentioned.

The compounding density | concentration of the oxidizing dye in the 1st agent of this embodiment is 0.05 mass% or more and 10 mass% or less, for example.

When mix | blending polyacrylamide with the 1st agent of this embodiment, the compounding density | concentration is 0.04 mass% or more and 3.0 mass% or less, for example, 0.1 mass% or more and 2.0 mass% or less are good, 0.2 mass% or more and 1.6 mass% The following is preferable.

When mix | blending a carboxyvinyl polymer with the 1st agent of this embodiment, the compounding density | concentration is 0.02 mass% or more and 2.0 mass% or less, for example, 0.06 mass% or more and 1.0 mass% or less are good, 0.1 mass% or more and 0.8 mass% The following is preferable.

When mix | blending a cationic polymer with the 1st agent of this embodiment, the compounding density | concentration is 0.02 mass% or more and 2.0 mass% or less, for example, 0.2 mass% or more and 1.6 mass% or less are good.

As a well-known 1st agent raw material mix | blended with the 1st agent of this embodiment, for example, higher alcohol, nonionic surfactant, cationic surfactant, polyhydric alcohol, hydrocarbon, fats and oils, pH adjuster, antioxidant, chelating agent, direct Dye.

Examples of the higher alcohol as the first raw material for preparation include cetanol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyl dodecanol, and myristyl alcohol. It is good to mix | blend 1 type, or 2 or more types of higher alcohol with a 1st agent. Although the compounding density | concentration of a higher alcohol is set suitably, they are 2 mass% or more and 20 mass% or less, for example.

The nonionic surfactant as a raw material for a 1st agent is polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol tetra fatty acid ester, Glycerin fatty acid ester, sorbitan fatty acid ester, polyglycerol fatty acid ester, and sucrose fatty acid ester. What is necessary is just to mix | blend 1 type, or 2 or more types of nonionic surfactant with a 1st agent. The compounding concentration of nonionic surfactant is 0.1 mass% or more and 15 mass% or less, for example.

The cationic surfactant as the raw material for the first agent is, for example, an alkylamine salt, a fatty acid amide amine salt, an ester-containing tertiary amine salt, an acobel tertiary amine salt, a long chain alkyltrimethylammonium salt, a di long chain alkyldimethylammonium salt, or a tri long chain alkyl. Monomethyl ammonium salt, benzalkonium type quaternary ammonium salt, and monoalkyl ether type quaternary ammonium salt. What is necessary is just to mix | blend 1 type, or 2 or more types of cationic surfactant with a 1st agent. The compounding density | concentration of a cationic surfactant is 0.1 mass% or more and 3 mass% or less, for example.

Examples of the polyhydric alcohol as the first raw material for preparation include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin and butylene glycol. What is necessary is just to mix | blend 1 type, or 2 or more types of polyhydric alcohols with a 1st agent. The compounding concentration of polyhydric alcohol is 0.1 mass% or more and 3 mass% or less, for example.

Examples of the hydrocarbon as the first raw material include liquid paraffin, squalene, pristane, ozokerite, paraffin, ceresin, petrolatum, and microcrystalline wax. It is good to mix | blend a 1 type, or 2 or more types of hydrocarbon with a 1st agent, and the compounding density | concentration of hydrocarbon is 0.1 mass% or more and 10 mass% or less, for example.

As fats and oils as a 1st raw material, hardened oil, almond oil, avocado oil, olive oil, shea butter oil, evening primrose oil, camellia oil, peanut oil, and rosehip oil are mentioned, for example. What is necessary is just to mix | blend 1 type, or 2 or more types of fats and oils with a 1st agent. The compounding concentration of fats and oils is 0.1 mass% or more and 10 mass% or less, for example.

Examples of the pH adjuster as the first raw material include ammonia, 2-amino-2-methyl-1-propanol, triethanolamine, arginine, lactic acid, citric acid, succinic acid, and glycolic acid.

As an antioxidant as a raw material for a 1st agent, ascorbic acid and a sulfite are mentioned, for example.

Moreover, the chelating agent as a raw material for a 1st agent can mention ethylenediamine tetraacetic acid and its salt, diethylenetriamine pentaacetic acid and its salt, hydroxyethane diphosphonic acid, and its salt, for example.

PH of the 1st agent of this embodiment is 8.5-12.5, for example. In order to reduce favorable staining and irritation to the scalp, pH is 9.5-11.5, and 10.0-11.0 is good.

In addition, the formulation of the 1st agent which concerns on this embodiment is not specifically limited, It is O / W emulsion, such as a liquid form, cream form, a wax form, a gel form. The viscosity of the 1st agent in the case of a creamy formulation is 10000 mPa * s or more and 60000 mPa * s or less, for example, the value after 60 second measured at 25 degreeC and 12 rpm using the Brookfield viscometer.

(The second agent)

The second agent for obtaining the oxidative hair dye of the present embodiment is one in which an oxidizing agent is blended (a typical example of the second agent of the present embodiment is 70 mass% or more of water). When all of a polyacrylamide, a carboxyvinyl polymer, and a cationic polymer are not mix | blended with the 1st agent of this embodiment, all these are mix | blended with this 2nd agent. When any one of a polyacrylamide, a carboxyvinyl polymer, and a cationic polymer is mix | blended with the same 1st agent, the mixing | blending raw material to this 1st agent is mix | blended suitably also to a 2nd agent. In addition, you may mix | blend a well-known 2nd agent raw material with the 2nd agent which concerns on this embodiment as an arbitrary raw material.

As said oxidizing agent mix | blended with a 2nd agent, hydrogen peroxide, bromate, percarbonate, a perborate is mentioned, for example. Although the compounding density | concentration of the oxidizing agent in a 2nd agent is not specifically limited, For example, they are 0.3 mass% or more and 7 mass% or less.

When mix | blending polyacrylamide with the 2nd agent of this embodiment, the compounding density | concentration is 0.04 mass% or more and 3.0 mass% or less, for example, 0.1 mass% or more and 2.0 mass% or less are good, 0.2 mass% or more and 1.6 mass% The following is preferable.

When mix | blending a carboxyvinyl polymer with the 2nd agent of this embodiment, the compounding density | concentration is 0.02 mass% or more and 2.0 mass% or less, for example, 0.06 mass% or more and 1.0 mass% or less are good, 0.1 mass% or more and 0.8 mass% The following is preferable.

When mix | blending a cationic polymer with the 2nd agent of this embodiment, the compounding density | concentration is 0.02 mass% or more and 2.0 mass% or less, for example, 0.2 mass% or more and 1.6 mass% or less are preferable.

As a well-known 2nd agent raw material mix | blended with the 2nd agent of this embodiment, higher alcohol (mixture concentration is 2 mass% or more and 15 mass% or less), nonionic surfactant (mixture concentration is 0.5 mass%, for example) 6 mass% or less), cationic surfactant (compound concentration is 0.1 mass% or more and 3 mass% or less), polyhydric alcohol, ester oil, antioxidant, a chelating agent, etc., for example.

The formulation of the second agent is not particularly limited, and examples thereof include liquid, cream and gel.

[Example]

Although an Example is given to the following and this invention is demonstrated to it further more concretely, this invention is not limited to a following example, unless the meaning of this invention is deviated.

(The first)

The raw material shown in following Tables 1-4 was mix | blended with water, and the 1st agent for obtaining the oxidation hair dye of an Example and a comparative example was prepared. The formulation of these first agents was a creamy O / W emulsion.

(The second agent)

As a common second agent for obtaining the oxidative hair dye of Examples and Comparative Examples, 6 mass% of hydrogen peroxide, 0.1 mass% of palm oil fatty acid amide propyl betaine, 3 mass% of myristyl alcohol, 0.4 mass% of liquid paraffin, 0.4 mass% of lanolin, poly What mix | blended the raw material of the compounding density | concentration used as 2 mass% of oxyethylene cetyl ether in water was prepared.

(Oxidation hair dye)

The prepared first agent and the second agent were mixed in a mass ratio of 1: 1 to obtain an oxidative hair dye of Examples and Comparative Examples. The formulation of the oxidative hair dye was creamy, and the pH ranged from 10.0 to 10.5.

(Dye Treatment)

Any one of the oxidative hair dyes of Examples and Comparative Examples was applied to a hair bundle (a hair bundle of about 30 cm in length of 5 g to 8 g taken from a general woman), and the hair bundle was left at room temperature for 20 minutes. Thereafter, the oxidative hair dye was washed from the hair bundle with warm water, and the hair bundle was dried with warm air while combing. It was set as the hair dye process with the above.

(Evaluation of Oxidative Hair Dye)

Three expert evaluators evaluated the "glossyness" of the hair bundle and the "dyeability" of the hair bundle under the condition that natural light is irradiated after the hair dye treatment. Moreover, the "stiffness at the time of washing | cleaning" of the oxidative hair dye from the hair bundle in the hair dyeing process and the "trimming to the hair end" of the hair bundle after a hair dyeing process were evaluated. Evaluation in Table 1 was based on Comparative Example 1c. The evaluation in Table 2 was based on Example 2. Evaluation in Table 3 was based on Example 3. The evaluation in Table 4 was based on Example 4a.

The evaluation results are shown in Tables 1 to 4 below, and the results are the same for all the evaluators. The detail of an evaluation result is as follows.

Hair shine

(Double-circle): It was shiny more than the hair bundle evaluated by the following "(circle)".

○: more glossy than the standard.

?: Standard or equivalent to a standard

X: There was no gloss than the standard.

Dyeability

(Circle): It was dyed than a standard | standard.

?: Standard or equivalent to a standard.

X: It was not dyed more than a standard | standard.

Trimming to the ends of the hair

(Circle): It was trimmed to the hair end rather than a standard | standard.

?: Standard or equivalent to a standard.

X: The hair tip was not arranged more than the reference | standard.

Stiffness when washing off

(Circle): There was no stiffness (bad finger permeability, hair entanglement to a finger) than a standard | standard.

?: Standard or equivalent to a standard.

X: There was more stiffness than the standard.

Apart from the evaluation of the said oxidative hair dye, the raster value of the hair bundle which performed the hair dye process was computed. Calculation of the raster value was performed using "SAMBA Hair System" by Bossa Nova Technologies. In each following table | surface, "(DELTA) raster value (%)" shows the difference when the reference raster value of each table is made into 100%. In addition, a high raster value is said to be an element which raises hair glossiness.

Table 1 shows that only Example 1, in which polyacrylic acid amide and carboxyvinyl polymer were blended, showed particularly good gloss, and good dyeability and trimming to the hair ends. That is, according to the oxidative hair dye according to the present invention, the gloss is particularly good, and it can be confirmed that dyeing and trimming to the ends of the hair become good.

In Table 2, Example 2 using polyacrylic acid amide in combination with a carboxyvinyl polymer is an alkyl acrylate copolymer, an alkyl acrylate, a vinyl acetate copolymer, or an acrylic acid, acrylate, acrylate, ethyl acrylate copolymer. It was shown that the gloss and dyeability were superior to any of Comparative Examples 2a, 2b, and 2c using the coalescence. That is, it can confirm that it is advantageous to glossiness and dyeability to employ | adopt polyacrylamide as a raw material used together when mix | blending with an carboxyvinyl polymer to an oxidizing hair dye. In addition, blending anionic polymers (alkyl acrylate copolymers, alkyl acrylate, vinyl acetate copolymers, acrylic acid, acrylate amide, and ethyl acrylate copolymers) with the oxidative hair dye can confirm that the glossiness and dyeing properties are disadvantageous.

In Table 2, Example 2 using polyacrylic acid amide for use with carboxyvinyl polymer, polyvinylpyrrolidone, or octylate acrylate, hydroxypropyl acrylate and butylaminoethyl methacrylate copolymer were used. It was shown that the gloss and dyeability were superior to any of Comparative Example 2d and Comparative Example 2e. Also from these evaluation results, it can confirm that it is advantageous to glossiness and dyeability to employ | adopt polyacrylamide as a raw material used together when mix | blending with an carboxyvinyl polymer in an oxidative hair dye.

In the said Table 3, it can confirm that employing polyacrylic acid amide as a raw material used together when mix | blending a carboxyvinyl polymer with an oxidizing hair dye is advantageous to glossiness and dyeability similarly to the result of the said Table 2.

In Table 4, the glossiness and dyeing property of Example 4a which did not mix | blend a cationic polymer, and Example 4b-4e which mix | blended this polymer are shown to be equivalent. And although the compounding of a cationic polymer (O [2? Hydroxy-3 (trimethylammonio) propyl] hydroxyethyl cellulose) is increased in Example 4c than Example 4b, the gloss and dyeability are equal. . These have shown that even if a cationic polymer is mix | blended with the oxidative hair dye which concerns on this invention, it does not affect glossiness and dyeability, or can suppress these fall. In addition, in the oxidative hair dye according to the present invention, the results of the evaluation of "preparation to the end of hair" and "stiffness when washing off" of Examples 4b to 4e containing cationic polymer were better than those of Example 4a. It has been shown that the blending of the polymers improves the stiffness during trimming and washing off to the ends of the hair.

Claims (5)

As an oxidative hair dye obtained by mixing the 1st agent with which the oxidizing dye was mix | blended, and the 2nd agent with which the oxidizing agent was mix | blended,
An oxidative hair dye characterized by blending polyacrylic acid amide and carboxyvinyl polymer. The oxidation hair dye according to claim 1, wherein the cationic polymer is blended. The oxidative hair dye of Claim 1 or 2 in which anionic polymers other than the said carboxyvinyl polymer are mix | blended, and the compounding density | concentration of the said polyacrylic acid amide is higher than the compounding concentration of anionic polymers other than the said carboxyvinyl polymer. The oxidation hair dye according to claim 3, wherein the compounding concentration of the anionic polymer other than the carboxyvinyl polymer is 0.5% by mass or less. The oxidation hair dye according to claim 1 or 2, wherein no anionic polymer other than the carboxyvinyl polymer is blended.