KR20090056479A - Composition for hair dyeing using green tea - Google Patents

Abstract

A composition for dyeing hair containing a green tea, pH adjusting agent, water soluble iron salt is provided to improve dye property and convenience and prevent hair damage without scalp irritation. A composition for dyeing hair comprises a first agent containing a green tea powder or green tea extract, pH adjusting agent and water soluble iron salt; and a second agent containing water soluble iron salt, reductant, and purified water; The pH adjusting agent is a L-arginine, the reductant is sodium metabisulphite or sodium sulfite, and the water soluble iron salt is ferrous sulfate heptahydrate or ferric sulfate. The first agent is used in a form of powder, liquid, cream, lotion, or gel and the second agent is used in a form of liquid, cream, lotion or gel.

Description

Hair dye composition using green tea {Composition for hair dyeing using green tea}

The present invention relates to a hair dye composition containing green tea, a pH adjuster and a water-soluble iron salt. More specifically, green tea powder or green tea extract; The addition of antioxidants, thickeners or purified water to hair dye compositions containing pH adjusters and water-soluble iron salts improves dyeability, compared to the case of using only green tea and iron salts, prevents hair damage and improves ease of use without irritating the scalp. You can.

Hair dyes are classified into permanent hair dyes, semi-permanent hair dyes, temporary hair dyes and other hair dyes depending on how long the dyed color lasts.

Permanent hair dyes are commonly referred to as oxidative hair dyes. Oxidative hair dye is a principle that shows the color by the oxidation reaction of the dye using an oxidizing dye. The oxidative permanent hair dye is composed of a hair dye which is a first agent and an oxidant which is a second agent. The first agent contains dyes for coloring and alkaline agents such as ammonia and monoethanolamine, which swell the hair and accelerate the decomposition of hydrogen peroxide to cause oxidation. It also controls the oxidation of dyes using reducing agents and antioxidants. Chelating agents are used to block metal ions. In addition, hair conditioning agents, fragrances such as patty alcohols, surfactants, and cationic polymers are included.

Hydrogen peroxide in the oxidant, the second agent, decomposes the melanin in the hair to brighten the color of the hair and promotes the oxidation reaction of the dye.

Oxidized permanent hair dye has the advantage of excellent color persistence because the dye penetrates into the hair and shows color by oxidative polymerization. However, the alkaline protein and hydrogen peroxide used in hair dyes damage hair proteins. Increasing the amount of alkali agent to make the color brighter will make the color brighter but also increase hair damage. In addition, when the ammonia content increases, there is a problem that a lot of smell. In addition, oxidative dyes may cause allergic reactions in some people and should be used when there is no abnormality after a patch test before use.

Semi-permanent hair dyes are the principle of dyeing hair using acid dyes or basic dyes which are non-oxidizing dyes. These dyes do not undergo an oxidative polymerization reaction and are colored as themselves and are attached to the hair by ionic bonds with amino acids of the hair to dye the hair. It is relatively large in size compared to oxidized dyes, so it does not go deep into the hair (up to the cortex layer).

Temporary hair dye is a pigment or pearl is attached to the surface of the hair using a film forming agent to temporarily impart a coloring effect to the hair.

Other hair dyes include hair dyes using plant natural dyes such as henna, indigo, and chamomile, and metallic hair dyes that dye hair by oxidation of lead acetate.

Patent examples using morden between tannins and iron salts are as follows. Hair-dye (Application No. 4-57396, Japan) proposes a composition for simultaneously dyeing and styling hair using hematein, gluten free assets, green tea extract and ferric chloride. In addition, the hair dye and hair dyeing method (Public Publication No. 1989-0014082, South Korea) has proposed a hair dye composition consisting of tannins and water-soluble iron salts. However, the patent does not provide a method for improving the dyeability when dyed with green tea.

A mordant is an agent that, when dyed with dyes (dye dyes) that do not have dyeing resistance to the dyes, binds the dyes to produce an insoluble colored compound that treats the dyes. Say. In other words, it refers to an operation of treating the dye with a drug that completes dyeing by connecting a dye which is not directly dyed to the dye due to lack of affinity for the dye.

The mordant includes metal compounds such as iron, copper, zinc, silver, bismuth, and aluminum as mordant, and as a coloring agent, it contains a molar property, a molar property ester, tannic acid and its esters, or pyrogallol and is a mordant in the hair. It is dyeing by reaction of metal ion and color developer. Since this type of hair dye has no primary irritation or allergy to the human body, it is a useful hair dye for people who cause allergic reactions to oxidative hair dyes.

The present invention relates to a composition that can enhance the dyeability compared to the case of using only green tea powder while using green tea powder or green tea extract. The present invention is a powder, using a powder-type raw material, such as green tea powder in addition to cream, liquid type, and presents a composition that is convenient to use because the two agents are in a liquid state and do not flow when applied to the hair.

Therefore, the present inventors have studied to complete the hair dye composition improved dyeability using the green tea as described above, green tea powder or green tea extract; The addition of antioxidants, thickeners or purified water to hair dye compositions containing pH adjusters and water-soluble iron salts improves dyeability compared to hair dyes containing only green tea and iron salts, and does not use oxidized synthetic dyes and hydrogen peroxide. The present invention has been found to prevent hair damage and improve ease of use without irritation.

Accordingly, an object of the present invention is a green tea powder or green tea extract; It is to provide a hair dye composition containing a pH adjusting agent and a water-soluble iron salt.

In order to achieve the above object, the hair dye composition according to the present invention is a hair dye composition showing the dyeability by the tannin and iron mortar of green tea, the present invention contains green tea, pH adjuster and water-soluble iron salt oxidized synthetic dyes and By not using hydrogen peroxide, it can prevent hair damage and improve usability without irritating the scalp.

Iron salts such as tannin and iron sulphate in green tea cause the mordity. Many of the hydroxy groups (-OH) in tannin form a complex by coordinating with metals to form complexes and color the hair by attaching it to the hair. will be. However, when dyeing through a mordant using only green tea is insufficient dyeing in the present invention provides a hair dye composition containing a green tea, a pH adjuster and a water-soluble iron salt to solve this problem. More specifically, green tea powder or green tea extract; A hair dye composition comprising a pH adjuster and a hair dye composition containing a water-soluble iron salt further comprising at least one selected from an antioxidant, a thickener or purified water.

Hereinafter, each component contained in the hair dye composition of this invention is demonstrated in detail.

Green tea used in the present invention is green tea (Green tea / Thea sinensis Linnaeus) is an evergreen tree or shrub belonging to the Theaceae (Theaceae), in the present invention can be used both powder form or extract form of green tea. Green tea powder used in the present invention is finely pulverized green tea obtained by inactivating oxidation-related enzymes by vaporizing tea leaves, stems or flowers, and keeping the polyphenol component stable. 30-40% of the polyphenols found in green tea are known as flavonol and catechin, and the main components of green tea catechin are epicatechin, epicatechin-3-gallate and epigallocatechin. (epigallocatechin) and epigallocatechin-3-gallate (EGCG), the highest content of epigallocatechin-3-gallate component among these, polyphenol of the green tea The ingredient is known to have various effects such as antioxidant, anticancer, anti-inflammatory, antibacterial, deodorant, and is widely used as a cosmetic raw material.

The green tea extract used in the present invention is removed by using ultrapure water to remove fine dust and soaked in 30 ~ 50% ethanol for 1 to 10 days at room temperature. The extract was removed once more using 250 mesh and centrifugation and filtered through a 0.5 μm filter paper. After filtration, the mixture was prepared by a method of adding a butylene glycol solvent after filtering with 3 µm, 1 µm, and 0.5 µm filter paper over three times.

In the hair dye composition of the present invention, a pH adjusting agent is used to improve dyeability, and examples thereof include L-arginine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, potassium hydroxide ( alkali agents such as potassium hydroxide, sodium hydroxide, sodium carbonate, aminomethyl propanol, aqueous ammonia, phosphoric acid, lactic acid, glycolic acid, citric acid ), Organic or inorganic acids such as acetic acid, hydrochloric acid and sulfuric acid and salts thereof Although it does not specifically limit in the kind, The pH adjuster normally used for a hair dye can be used. In particular, L-arginine is one of the hair constituents as one of the amino acids constituting the protein. When the L-arginine is used as a pH adjusting agent, there is an advantage in that not only a pH adjusting effect but also a hair protecting effect can be simultaneously obtained.

In the hair dye composition of the present invention, a reducing agent is used for improving hair dyeability and stabilizing iron salts, and examples thereof include sulfites such as sodium pyrosulfite and sodium sulfite and salts thereof, disodium pyrophosphate, and trisodium. Pyrophosphates or phosphates, such as trisodium pyrophosphate, tetrasodium pyrophosphate, propyl gallate, vitamin derivatives such as ascorbic acid, erythorbic acid, cysteine Cysteine derivatives such as hydrochloride, sodium thiosulfate, sodium hexahydroxostannate, thioglycolic acid and thio lactic acid, and the like, but are not particularly limited in its kind, and are generally used for hair dyes. Can be used. Preferably, sulfites, such as sodium pyrosulfite and sodium sulfite, are used.

The thickener, which serves to improve the ease of use while preventing problems such as flowing down when applying the hair dye composition of the present invention to starch, hydroxyethyl cellulose (Hydroxyethylcellulose), polyquaternium (Polyquaternium) and cellulose Cellulose gum and the like, preferably, starch or hydroxyethyl cellulose is used.

The water-soluble iron salt in the hair dye composition of the present invention is selected from ferrous chloride, ferric chloride, ferrous sulfate, ferric sulfate, and the like and hydrates thereof.

The hair dye composition according to the present invention comprises a first agent and a second agent, and the first agent may be formulated into a powder type, a liquid type, a cream or lotion type, a gel type, and the like. In particular, when formulated into a powder type, there is an advantage that can prevent oxidation discoloration of the green tea itself. In addition, the second agent may be formulated into a liquid and cream, lotion type, gel type and the like.

The first agent composition of the powder type may comprise 0.1 to 99% by weight of green tea powder or green tea extract, based on the total weight of the first agent composition; 0.01-30% by weight of pH regulator; 0.01-30% by weight of reducing agent; And 0.01 to 30% by weight of a thickener, and can be transformed into a liquid, cream, lotion or gel type by adding an appropriate amount of purified water to the first agent composition of the powder type.

The second agent composition may further comprise 0.01 to 10% by weight of a water-soluble iron salt relative to the total weight of the second agent composition; 0.01-30% by weight of reducing agent; And the remaining amount of purified water.

The hair dye composition of the present invention is applied to the hair by mixing the first agent and the second agent in a weight ratio of 1: 1 to 10 immediately before dyeing.

In addition to the green tea powder or green tea extract, a natural-derived dye such as hematein and pyrogallol may be further contained in the first agent composition according to the present invention in an amount of 0.01 to 99% by weight based on the total weight of the first agent composition. Can be.

Moreover, the component normally used for a hair dye can be used for the hair dye composition of this invention within the range which does not impair the effect of this invention. For example, cationic surfactants, higher alcohols, nonionic and anionic polymer thickeners and cationic surfactants, anionic surfactants, nonionic surfactants, and zwitterionic surfactants may be used alone or as a mixture. . And solvents such as ethanol, isopropyl alcohol, benzyl alcohol, polyols such as propylene glycol, 1,3-butylene glycol, glycerin, and quaternary ammonium salts, cationic polymers, silicones, amino acids and proteins as hair conditioning agents. And known ingredients that can be commonly used in hair dyes such as perfumes, but are not limited thereto.

As described above, the hair dye composition exhibiting dyeing properties by tannin and iron mortar of green tea according to the present invention contains green tea, a pH adjuster, and a water-soluble iron salt, and thus does not use an oxidizing synthetic dye and hydrogen peroxide, thereby causing no irritation to the scalp. It can prevent hair damage and improve usability.

EMBODIMENT OF THE INVENTION Hereinafter, the structure and effect of the hair dye composition which concerns on this invention by giving an Example and a comparative example are demonstrated. In Examples and Comparative Examples, the first agent and the second agent type or integral type, the first agent is used only the powder type and gel type, the second agent is a liquid type, but the present invention is not limited to these examples, It can be applied in various forms.

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

Examples 1 to 3 and the hair dye agent (powder type) of Comparative Examples 1 to 2 were prepared in the compositions shown in Table 1 below, and the second agent (liquid type) was prepared in the composition ratios shown in Table 2 below.

Table 1 Powder type first agent composition

TABLE 2 Liquid Type Second Agent Composition

Test Example 1 Dyeability Evaluation

In order to evaluate the dyeing power of the hair dye composition of Examples 1 to 3 and Comparative Examples 1 to 2, Examples 1 to 3 of Table 1 and the first agent composition (powder type) of Comparative Examples 1 to 2 are shown in the above table. After mixing immediately before use in the ratio of the second agent composition (liquid type) of 2 to 1: 5, the amount of hair was doubled to twice the weight, and evenly applied to the hair having a length of 12 cm. Hair was used that contained about 30% of gray hair. After 30 minutes of application, the mixture was washed for 1 minute in running water using a shampoo solution and then dried using a hair dryer. Dry hair color was measured using a colorimeter (Hunterlab Labscan XE). The results were compared using the change of L ^* value before and after staining measured by the color difference meter. L ^* value is a numerical value representing the brightness, the higher the L ^* value means the brighter the color. Therefore, the greater the ΔL ^* value, the difference in brightness before and after dyeing, means that the color is expressed more strongly, which means that the dyeability is excellent. The results are shown in Table 3 below.

TABLE 3

As shown in Table 3, the hair dye of Examples 1 to 3 containing green tea powder and L-arginine in the first agent was superior in color expressing power to Comparative Examples 1 to 2 without L-arginine. It was confirmed that the color expression of Examples 2 and 3 containing L-arginine and sodium pyrosulfite is more excellent. In addition, in the case of Example 3 containing the natural dye hematein was the best dyeing.

[Examples 4-6 and Comparative Examples 3-4]

A gel type 1 composition was prepared as shown in Table 4 below.

TABLE 4 Gel Type First Composition

Test Example 2 Dyeability Evaluation

In order to evaluate the dyeing power of the hair dye composition of Examples 4 to 6 and Comparative Examples 3 to 4, the first agent composition (gel type) of Examples 4 to 6 and Comparative Examples 3 to 4 of Table 3 was The second agent composition (liquid type) of 2 was mixed immediately before use in a ratio of 1: 1, and then twice the amount of hair weight was taken and evenly applied to the hair having a length of 12 cm. Hair was used that contained about 30% of gray hair. After 30 minutes of application, the mixture was washed for 1 minute in running water using a shampoo solution and then dried using a hair dryer. Dry hair color was measured using a colorimeter (Hunterlab Labscan XE). The results were compared using the change of L ^* value before and after staining measured by the color difference meter. L ^* value is a numerical value representing the brightness, the higher the L ^* value means the brighter the color. Therefore, the greater the ΔL ^* value, the difference in brightness before and after dyeing, means that the color is expressed more strongly, which means that the dyeability is excellent. The results are shown in Table 5 below.

TABLE 5

As shown in Table 5, even when the first agent was gel, the hair dye of Examples 4 to 6, which contained green tea powder and L-arginine, had a color expressing power compared to Comparative Examples 3 to 4, which did not contain L-arginine. It was excellent, and in particular, it was confirmed that the color expressing power of Examples 5 and 6 containing L-arginine and sodium pyrosulfite together was more excellent. In addition, in the case of Example 6 containing the natural dye hematein was the best dyeing.

EXAMPLES 7-8

Integral hair dye composition was prepared as shown in Table 6 below.

TABLE 6 Integral hair dye composition

 Test Example 3 Dyeability Evaluation

In order to evaluate the dyeing power of the integral hair dye composition of Examples 7 and 8, Example 7 in Table 6 takes twice the amount of hair weight after mixing immediately before use in a weight ratio of 1: 5 with purified water Evenly applied to hair 12cm in length. In addition, Example 8 was taken as much as twice the weight of the hair as it was, evenly applied to the hair of 12cm in length. Hair was used that contained about 30% of gray hair. After 30 minutes of application, the mixture was washed for 1 minute in running water using a shampoo solution and then dried using a hair dryer. Dry hair color was measured using a colorimeter (Hunterlab Labscan XE). The results were compared using the change of L ^* value before and after staining measured by the color difference meter. L ^* value is a numerical value representing the brightness, the higher the L ^* value means the brighter the color. Therefore, the greater the ΔL ^* value, the difference in brightness before and after dyeing, means that the color is expressed more strongly, which means that the dyeability is excellent. The results are shown in Table 7 below.

TABLE 7

As shown in Table 7, the hair dyes of Examples 7 and 8, which are integral hair dye compositions in the form of powders or gels, were superior in color expression power compared to Comparative Examples 2 and 4 using only green tea powder.

Claims (12)

Green tea powder or green tea extract; pH regulators; A water-soluble iron salt; hair dye composition comprising a. The method of claim 1, A hair dye composition further comprising one or more selected from reducing agents, thickeners or purified water. The method of claim 2, The pH adjusting agent is L-arginine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, potassium hydroxide, sodium hydroxide, sodium carbonate, aminomethylpropanol, ammonia water, phosphoric acid, lactic acid, glycolic acid, citric acid, acetic acid, hydrochloric acid and sulfuric acid Is selected from ; The reducing agent is sodium pyrosulfite, sodium sulfite, disodium pyrophosphate, trisodium pyrophosphate, tetrasodium pyrophosphate, propyl gallate, ascorbic acid, erythorbic acid, cysteine hydrochloride, sodium thiosulfate, sodium hexahydrate Selected from the group consisting of loxotanate, thioglycolic acid, and thiomoric acid ; The thickener is selected from starch, hydroxyethylcellulose, polyquaternium and cellulose gum ; The water-soluble iron salt is a hair dye composition, characterized in that selected from ferric chloride, ferric chloride, ferrous sulfate and ferric sulfate. The method of claim 3, wherein Wherein the pH adjusting agent is L-arginine, the reducing agent is sodium pyrosulfite or sodium sulfite, the thickener is starch or hydroxyethylcellulose, and the water-soluble iron salt is ferrous sulfate or ferric sulfate. A hair dye composition comprising i) a green tea extract or a first agent containing green tea powder, a thickener and a pH adjusting agent; and ii) a second agent containing a water-soluble iron salt, a reducing agent and purified water. The method of claim 1, A hair dye composition further comprising a reducing agent in the first agent. The method of claim 6, A hair dye composition further comprising a natural dye in the first agent. The method of claim 5, The thickener is selected from starch, hydroxyethylcellulose, polyquaternium and cellulose gum ; The pH adjusting agent is L-arginine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, potassium hydroxide, sodium hydroxide, sodium carbonate, aminomethylpropanol, ammonia water, phosphoric acid, lactic acid, glycolic acid, citric acid, acetic acid, hydrochloric acid and sulfuric acid Is selected from ; The reducing agent is sodium pyrosulfite, sodium sulfite, disodium pyrophosphate, trisodium pyrophosphate, tetrasodium pyrophosphate, propyl gallate, ascorbic acid, erythorbic acid, cysteine hydrochloride, sodium thiosulfate, sodium hexahydrate Selected from the group consisting of loxotanate, thioglycolic acid, and thiomoric acid ; The water-soluble iron salt is a hair dye composition, characterized in that selected from ferric chloride, ferric chloride, ferrous sulfate and ferric sulfate. The method of claim 6, The reducing agent is sodium pyrosulfite, sodium sulfite, disodium pyrophosphate, trisodium pyrophosphate, tetrasodium pyrophosphate, propyl gallate, ascorbic acid, erythorbic acid, cysteine hydrochloride, sodium thiosulfate, sodium hexahydrate Hair dye composition, characterized in that it is selected from loxostate, thioglycolic acid and thio lactic acid. The method of claim 7, wherein The hair dye composition, characterized in that the natural dye is selected from hematein and pyrogallol. The method according to any one of claims 5 to 10, Wherein said first agent is formulated as a powder, liquid, cream, lotion, or gel, and said second agent is formulated as a liquid, cream, lotion, or gel. The method according to any one of claims 5 to 10, The composition is a hair dye composition characterized in that the first agent and the second agent before the dyeing in a weight ratio of 1: 1 to 10 are used by mixing.