KR100757028B1 - Hair dye composition for the oxidative dyeing of keratin fibers - Google Patents

Abstract

A hair dye composition for the oxidative dyeing of keratin fibers is provided to inhibit lowering of coloring effects, hair damage, and stimulation and stimulus smell caused by ammonia by using ammonia and tromethamine as alkalizing agents. A hair dye composition for the oxidative dyeing of keratin fibers comprises a first reagent containing an oxidative dye precursor, a coupler and alkalizing agents including ammonia and tromethamine in a weight ratio of 5:1-1:50, and a second reagent containing an oxidizing agent, and further comprises at least one ingredient selected from anti-oxidant, metal sequestrant, solvent, surfactant, thickening agent, flavoring agent and conditioning agent.

Description

Hair dye composition for the oxidative dyeing of keratin fibers

Fig. 1-Comparison of the color development powers of the hair dyes of Examples 1 to 2 and Comparative Examples 1 to 3 from the "L ^* " value measured using a colorimeter (HunterLab Labscan XE)

The present invention relates to a hair dye composition for oxidation dyeing keratin fibers. More specifically, it is composed of a first agent containing an oxidizing dye precursor, a coupler and an alkali agent and a second agent containing an oxidant, and by simultaneously containing ammonia and tromethamine as the alkali agent in the first agent, the color development ability is reduced or It is possible to effectively suppress irritation and irritant odor caused by ammonia without increasing hair damage.

In general, the composition for the oxidation dyeing of keratin fibers, including the hair is expressed by the oxidation dye precursor and the coupler penetrates into the hair and binds through the oxidation condensation reaction. In the process, the alkali agent contained in the first agent promotes the generation of perhydroxy anions through the mixed use with the second agent containing the oxidizing agent, which causes color reaction and decolorization by causing oxidation reaction and melanin decomposition of the dye. Effect. In addition, the alkali agent inhibits hair internal bonds, ie, ionic bonds and hydrogen bonds, thereby swelling the hair, thereby enhancing the penetration of the dye into the hair efficiently. However, the increase in pH due to such an alkaline agent may cause hair damage because it promotes hydrolysis of the hair protein or simultaneously causes oxidation of the protein. Therefore, as the alkali agent used, small molecules are easy to penetrate into the hair, and have excellent color development and decolorization effects.Ammonia, which is relatively low in pH and has low hair damage, is most commonly used. There is a disadvantage that gives a strong stimulus. In order to solve this problem, conventionally, monoethanolamine is used alone or mixed with ammonia to reduce the amount of ammonia in the whole to alleviate irritation caused by ammonia. It has a problem that hair damage is worse than that of using ammonia.

In order to solve the above problem, Patent Application No. 2004-7016022 'composition for oxidative dyeing of human keratin fibers' discloses a method of suppressing irritant odor through the composition for oxidative dyeing containing an alkali agent consisting of sodium metasilicate and ammonia, However, no special countermeasures have been proposed for hair damage.

In addition, Patent Application No. 2000-0002295 'neutral hair dye composition' discloses a dyeing composition using sodium silicate rather than ammonia or monoethanolamine, but only bright hair can be darkened, various color expression It has an impossible disadvantage.

On the other hand, US Patent No. 3,951,589 discloses a composition of a specific dye and alkanolamine, but this is not the oxidative hair dye concept presented in this patent, and also refers to the conventional alkanolamine effect, but of the specific material No effect is given.

In addition, Japanese Patent Application No. 2000-100663 'Dyeing agent composition' is the same concept as the present patent through the hair dye composition which mixes isopropanolamine and ammonia in a specific weight ratio, while stimulating ammonia while maintaining satisfactorily coloring power and hair feel. It is disclosed that the result is reduced. However, the hair damage was evaluated only by the sensory touch, and the reason is not clearly indicated.

In order to solve the above problems, the inventors of the present invention, when using ammonia and tromethamine as an alkali agent in the oxidative dyeing hair dye composition, without damaging the hair damage or color development and decolorization, effectively stimulated by ammonia and The present invention has been found to be able to suppress irritant odor.

Accordingly, it is an object of the present invention to provide a hair dye composition for oxidation dyeing keratin fibers, characterized in that it contains ammonia and tromethamine together as an alkali agent.

In order to achieve the above object, the hair dye composition for oxidative dyeing of keratin fibers according to the present invention comprises a first agent containing an oxidizing dye precursor, a coupler and an alkali agent and a second agent containing an oxidizing agent, By containing ammonia and tromethamine as alkali agents, it is possible to effectively suppress irritation and irritant odor caused by ammonia without lowering color development or hair damage.

In addition, the hair dye composition for oxidation dyeing of keratin fibers of the present invention contains ammonia in an amount of 0.0028 to 2.25% by weight based on the total weight of the first agent composition, and tromethamine in an amount of 0.01 to 20% by weight based on the total weight of the first agent composition. It is characterized by containing in%.

Hereinafter, the present invention will be described in more detail.

Tromethamine used in the present invention has a low pH compared to other organic amines such as monoethanolamine, aminomethylpropanol and isopropanolamine, which are most commonly used as ammonia substitutes, without the volatile stimulus such as ammonia. Less hair damage Thus, when used with ammonia, hair damage is no longer severe while maintaining a desired level of color development and decolorization, and it is possible to alleviate irritation and irritant odor caused by ammonia by sufficiently lowering the amount of ammonia in the composition.

The hair dye composition for oxidation dyeing keratin fibers according to the present invention contains tromethamine in an amount of 0.01 to 20% by weight, preferably 0.1 to 10% by weight, based on the total weight of the first agent composition. If the content of tromethamine is less than 0.01% by weight, the compounding amount of ammonia cannot be effectively reduced to the extent that the stimulation caused by ammonia can be suppressed while maintaining sufficient color development and decolorization effects. Since it is not expected and shows a problem that only hair damage is increased, it is preferable to use it within the above range.

In addition, the hair dye composition for oxidative dyeing of keratin fibers of the present invention contains ammonia together with tromethamine in an amount of 0.0028 to 2.25% by weight, preferably 0.28 to 1.68% by weight based on the total weight of the first agent composition. If it is less than 0.0028% by weight, it may not exhibit sufficient coloration and decolorization effects, and if it exceeds 2.25% by weight, there is a problem in that irritation is rapidly increased in the eyes, nose or scalp.

The dyeing agent composition for oxidation dyeing of the present invention can effectively suppress irritation and irritant odor caused by ammonia with satisfactory coloring and decolorizing effects when the ammonia and tromethamine are mixed in a weight ratio of 5: 1 to 1:50. This will no longer damage your hair.

The dyeing agent composition for oxidation dyeing of the present invention can be used in the pH range of neutral to alkali, and it is particularly preferable to use in alkaline conditions.

As the alkaline agent used in the present invention, in addition to the ammonia and tromethamine mentioned in the present invention, the alkaline agent component commonly used in hair dyes such as monoethanolamine, aminomethylpropanol, isopropanolamine, sodium hydroxide, potassium hydroxide, and the like, is ineffective. It can be used as auxiliary within the range of not falling.

The hair dye composition for oxidative dyeing of keratinous fibers of the present invention contains an oxidizing dye precursor and a coupler which are conventional in the first agent, and preferably contains two or more oxidizing dye precursors and a coupler.

As the oxidized dye precursor and coupler, most oxidized dye precursors and couplers currently known may be used. Such kind of oxidation dye precursor is not particularly limited, but o-aminophenol, p-aminophenol, toluene-2,5-diamine hydrochloride, p-phenylenediamine hydrochloride, toluene-2,5-diamine, sulfuric acid p-phenylenediamine, p-methylaminophenol sulfate, o-aminophenol sulfate, p-aminophenol sulfate, toluene-2,5-diamine sulfate, p-phenylenediamine sulfate, and the like. It is used at 0.001 to 5.0% by weight relative to the total weight of the first agent composition. As the coupler, 2-methyl-5-hydroxyethyl aminophenol, p-amino-o-cresol, m-aminophenol, hydrochloric acid 2,4-diaminophenoxyethanol, hydrochloric acid m-phenylenediamine, m-phenylenediamine, α-naphthol, resorcinol, 2-methylsorcinol and the like can be used, the coupler is used in 0.001 to 5.0% by weight relative to the total weight of the first agent composition, Can be used in combination with oxidizing dye precursors to give the hair a variety of shades.

In the dyeing composition for oxidation dyeing of keratinous fiber of the present invention, direct dyes commonly used within the scope of not impairing the object of the present invention can be added, and as such a direct dye, arianol Dyes, p-nitro-o-phenylenediamine, nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, nitro-p-phenylenediamine hydrochloride, picramic acid Other vegetable dyes such as Henna may be used.

Moreover, the component normally used for a hair dye can be used for the hair dye composition for oxidation dyeing of the keratinous fiber of this invention within the range which does not impair the effect of this invention. For example, antioxidants, metal containment agents, solvents, surfactants, thickeners, fragrances and conditioning agents and the like are used, but are not particularly limited to those that can be commonly used in hair dyes.

Examples of the antioxidant include ascorbic acid, erythorbic acid, cysteine hydrochloride, sodium sulfite and thioglycolic acid, and the like. As a metal blocking agent, editie (EDTA), tetrasodium editie (EDTA), pentasodium penteti Tate, propyl alcohol, isopropyl alcohol, propylene glycol, hexylene glycol, diethylene glycol, and the like. Examples of the surfactant include cationic surfactants, anionic surfactants, and BBs. Anionic surfactants and the like can be used, and as the thickener, higher alcohols having 14 to 22 carbon atoms can be used singly or mixed, nonionic polymers and anionic polymers can be used, and as conditioning agents, cationic polymers and quaternizations can be used. Ammonium salt, silicon, or the like can be used.

On the other hand, the oxidizing agent contained in the second agent of the hair dye composition for oxidative dyeing of keratin fibers according to the present invention is selected from hydrogen peroxide, urea peroxide, alkali metal bromate, ferricyanide, perborate and persulfate, which are commonly used. One or more species may be used, but hydrogen peroxide is particularly preferred.

The hair dye composition for oxidation dyeing of keratin fibers of the present invention is applied to the hair by mixing the first agent and the second agent just before dyeing.

Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in detail, this invention is not limited only to these examples.

[Examples 1-2 and Comparative Examples 1-3]

Examples 1 to 2 and the first hair dye of Comparative Examples 1 to 3 were prepared in the compositions shown in Table 1 below.

According to the composition ratio shown in Table 1, purified water, disodium id, erythorbic acid, sodium sulfite, propylene glycol and dyes (paraphenylenediamine and metaaminophenol) were added up to 75 ° C. Warm dissolved. Cetearyl alcohol, mineral oil, and polyoxyethylene stearyl ether were added as an oil phase, and it melt | dissolved by heating to 75 degreeC. The oil phase and the water phase were mixed and emulsified, and then cooled to 40 ° C., and then mixed with an alkali and a combination flavor to prepare a first agent composition.

On the other hand, the second agent oxidant composition is based on the composition ratio shown in Table 2 below, cetearyl alcohol, ethyl hexyl palmitate, paraffin, hard flow isoparipine, cocoamide-EDTA, polyoxyethylene stearyl ether and phenacetin oil phase Heated to 75 ° C, dissolved in disodium ethane and purified water to 75 ° C in an aqueous phase, mixed and emulsified in the aqueous phase and oil phase at the same temperature, and cooled to 40 ° C to form phosphoric acid and hydrogen peroxide (35%). It was prepared by mixing and stirring to put.

TABLE 1 First Agent Composition

TABLE 2 Second Agent Composition

Test Example 1 Evaluation of Color Development

In order to evaluate the coloring power of the hair dye composition of Examples 1 to 2 and Comparative Examples 1 to 3, the first agent of Examples 1 to 2 and Comparative Examples 1 to 3 of Table 1 was added to the second agent of Table 2 After mixing in an 1: 1 ratio with the oxidizing agent composition, it was applied to a wool cloth, left for 30 minutes, which is a conventional hair dye leaving time, washed with shampoo and dried. After drying, the dyed wool cloth was measured by using a colorimeter (HunterLab Labscan XE) to measure the "L ^* " value, and the results are shown in Table 3 and FIG. 1. The color difference measurement recorded the average value after four repeated measurements for each value.

TABLE 3

From Table 3, L ^* average value of the hair dye of Example 2 containing both ammonia and tromethamine as an alkali agent was higher than that of Comparative Example 1 using only ammonia as the alkali agent, but the dispersion analysis result of FIG. On the other hand, statistically, there was no significant difference with 95% confidence level (p = 0.407). In addition, the hair dye of Example 1, which contains ammonia and tromethamine as an alkali agent, does not have a poor color development compared with the hair dyes of Comparative Examples 1 to 3, which use a mixture of ammonia and ammonia and monoethanolamine or isopropanolamine as the alkali agent. Could know.

Therefore, the hair dyes of Comparative Examples 2 to 3 containing the mixture of ammonia and monoethanolamine or isopropanolamine as examples of the hair dye of Examples 1 to 2 containing tromethamine and ammonia together as alkali agents, As compared with the hair dye of Comparative Example 1 used as an alkaline agent, it was confirmed that the color developing power did not fall.

Test Example 2 Evaluation of Hair Damage

In order to evaluate the hair damage of the hair dye composition of Examples 1 to 2 and Comparative Examples 1 to 3, Examples 1 to 2 of Table 1 and First Agent compositions of Comparative Examples 1 to 3 were used as the second After mixing with an oxidizing agent composition in a 1: 1 ratio, it was applied to experimental human hair, left for 30 minutes, which is a conventional hair dye, and then washed and dried with shampoo. Five professional panelists evaluated the hair feel after drying according to the following criteria, and the results are shown in Table 4 below.

TABLE 4

Through Table 4, compared to the hair dye of Comparative Examples 2 to 3 in the case of the hair dye of Comparative Example 1 using only ammonia and ammonia as the alkali agent simultaneously containing tromethamine and ammonia according to the present invention It was confirmed that the hair damage is excellent. The dye values of the hair dyes (pH 10.1 and 9.8) and the hair dyes (pH 10.23) of Comparative Example 1 were lower than the pH values shown in Table 1, and the hair dyes (pH 10.33 and 10.34) of Comparative Examples 2 to 3 were low. Compared with, it was confirmed that it causes relatively little hair damage.

Test Example 3 Evaluation of Stimuli

In order to evaluate the stimulation of the hair dye composition of Examples 1 to 2 and Comparative Examples 1 to 3, the first agent composition of Examples 1 to 2 and Comparative Examples 1 to 3 of Table 1 was prepared as the second agent of Table 2 After mixing with an oxidizing agent composition in a ratio of 1: 1, the irritant odor felt by applying to human hair for experiment was evaluated according to the following criteria, and the results are shown in Table 5 below.

TABLE 5

Through Table 5, Comparative Examples 2 to 2 comprising a hair dye of Examples 1 to 2 containing both tromethamine and ammonia according to the present invention as an alkali agent and a mixture of ammonia and monoethanolamine or isopropanolamine as alkali agents. The hair dye of 3 was found to cause less irritation compared to the hair dye of Comparative Example 1 using only ammonia as the alkali agent.

As described above, the hair dye composition for oxidative dyeing of keratin fibers according to the present invention contains ammonia and tromethamine as an alkali agent, so that color development ability is not lowered, hair is not damaged, and stimulation by ammonia is effectively suppressed. It is possible.

Claims (10)

In the hair dye composition for oxidative dyeing of keratin fibers composed of a first agent containing an oxidizing dye precursor, a coupler and an alkali agent and a second agent containing an oxidizing agent, A dye-dye composition for oxidation dyeing keratin fibers, comprising ammonia and tromethamine as the alkali agent of the first agent. The method of claim 1, Ammonia is contained in 0.0028 ~ 2.25% by weight relative to the total weight of the first agent composition, hair dye composition for oxidation dyeing keratin fibers. The method of claim 1, Tromethamine is contained in 0.01 to 20% by weight relative to the total weight of the first agent composition, hair dye composition for oxidation dyeing keratin fibers. The method of claim 2 or 3, The ammonia and tromethamine are mixed in a weight ratio of 5: 1 to 1: 50, characterized in that the hair dye composition for oxidation dyeing keratin fibers. The method of claim 1, The oxidation dye precursor is a hair dye composition for oxidation dyeing keratin fibers, characterized in that it contains 0.001 to 5% by weight relative to the total weight of the first agent composition. The method of claim 5, The oxidation dye precursor is o-aminophenol, p-aminophenol, toluene-2,5-diamine hydrochloride, p-phenylenediamine hydrochloride, toluene-2,5-diamine, p-phenylenediamine sulfate, p-methyl sulfate Hair dye for oxidation dyeing keratin fibers, characterized in that at least one member selected from the group consisting of aminophenol, o-aminophenol sulfate, p-aminophenol sulfate, toluene-2,5-diamine sulfate and p-phenylenediamine sulfate Composition. The method of claim 1, The coupler is a hair dye composition for oxidation dyeing keratin fibers, characterized in that it contains 0.001 to 5% by weight relative to the total weight of the first agent composition. The method of claim 7, wherein The coupler is 2-methyl-5-hydroxyethyl aminophenol, p-amino-o-cresol, m-aminophenol, 2,4-diaminophenoxyethanol hydrochloride, m-phenylenediamine hydrochloride, m- At least one member selected from the group consisting of phenylenediamine, α-naphthol, resorcinol and 2-metholesorcinol, hair dye composition for oxidation dyeing keratin fibers. The method of claim 1, Wherein the oxidizing agent is hydrogen peroxide, urea peroxide, alkali metal bromate, ferricyanide, perborate and persulfate dyeing composition for oxidative dyeing of keratin fibers, characterized in that at least one selected from the group consisting of. The method according to any one of claims 1 to 3 and 5 to 9, A hair dye composition for oxidation dyeing keratin fibers, further comprising at least one component selected from the group consisting of an antioxidant, a metal blocking agent, a solvent, a surfactant, a thickener, a perfume, and a conditioning agent.

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