KR101461109B1 - Composition for hair dyeing using green tea - Google Patents

Abstract

The present invention relates to a hair dye composition containing green tea, a pH adjusting agent and a water-soluble iron salt. More particularly, it relates to a green tea powder or green tea extract; By further containing an antioxidant, thickening agent or purified water in a hair dye composition containing a pH adjusting agent and a water-soluble iron salt, it is possible to improve dyeability compared to the case of using only green tea and iron salt, prevent damage to the hair without stimulating the scalp, .

Green tea, hair dye, L-arginine, pH regulator, dyeability, hair dye, iron salt

Description

TECHNICAL FIELD The present invention relates to a hair dye composition using green tea,

The present invention relates to a hair dye composition containing green tea, a pH adjusting agent and a water-soluble iron salt. More particularly, it relates to a green tea powder or green tea extract; By further containing an antioxidant, thickening agent or purified water in a hair dye composition containing a pH adjusting agent and a water-soluble iron salt, it is possible to improve dyeability compared to the case of using only green tea and iron salt, prevent damage to the hair without stimulating the scalp, .

The hair dye is classified into permanent hair dye, permanent hair dye, temporary hair dye and other hair dye depending on how long the stained color lasts.

Permanent hair dye is generally called oxidative dye hair dye. Oxidation dyeing agents are the principle of coloring by the oxidation reaction of dyes using oxidative dyes. Oxidative permanent hair dye is composed of one hair dye and two oxidizer. 1 contains an alkaline agent such as ammonia or monoethanolamine which swells dyes and hair for coloring and accelerates the decomposition of hydrogen peroxide to cause an oxidation reaction. In addition, reducing agents and antioxidants are used to control the oxidation of dyes. Chelating agents are used to block metal ions. In addition, hair conditioning agents such as patty alcohols, surfactants, cationic polymers, and fragrances are included.

2 Hydrogen peroxide in the oxidizing agent oxidizes the melanin of the hair, brightens the background color of the hair, and promotes the oxidation reaction of the dye.

The oxidative permanent hair dye has the advantage of excellent color sustainability because the dye penetrates into the hair and shows color by the oxidation polymerization reaction. However, the alkaline agent and hydrogen peroxide used in hair dye make hair protein damaged. Increasing the content of the alkaline agent to make the colors brighter results in brighter colors but also increases hair damage. Also, when the ammonia content is increased, there is a problem that the smell is increased. In addition, oxidative dyes may cause allergic reactions in some people, so they should be used after a patch test before use.

The semi-permanent hair dye is a principle of dyeing hair using non-oxidative dyes such as acid dyes or basic dyes. These dyes do not oxidize and polymerize, but are themselves colored dyes that attach to the hair by ionic bonding with the amino acid of the hair and dye the hair. It is relatively large in size compared to oxidative dyes and can not penetrate deeper into the hair (to the layer of the hair).

The hair dyeing agent temporarily attaches pigment or pearl to the surface of the hair using a film forming agent, thereby temporarily imparting a coloring effect to the hair.

Other hair dyeing agents include hair dyeing agents using vegetable natural dyes such as henna, indigo and chamomile, silver nitrate, and metallic hair dye for dyeing hair by oxidation of acetic acid.

A patent example using manganese salt of tannin and iron salt is as follows. In the case of the 'hair dyeing agent (patent application no. 4-57396, Japan)', a composition for simultaneous hair dyeing and styling using hematin, gallic acid, green tea extract and ferric chloride is proposed. In addition, 'hair dyes and hair dyeing method' (Publication No. 1989-0014082, Korea) discloses a hair dye composition composed of geranyl tannin and a water-soluble iron salt. However, the above patent does not disclose a method of improving dyeability when dyed with green tea.

The mordant salt is an operation for treating a dyestuff with a drug which produces a colored compound which is insoluble (insoluble) when it is dyed with a dye (mordant dyestuff) having no dyeability It says. In other words, it refers to an operation of treating a dye that is not directly dyeable to the target dyed with an agent that completes dyeing by connecting it to the dyed material because of lack of affinity for the dyed material.

Mordants include mordants such as iron, copper, zinc, silver, bismuth and aluminum as a mordant and mordant acids, gallic acid esters, tannic acid and esters thereof or pyrogallol as coloring agents. And dyeing by the reaction of the metal ion and the coloring agent. This kind of hair dye is a useful hair dye for people who cause an allergic reaction to oxidized hair dye because they have no primary irritation or allergy to human body.

The present invention relates to a composition capable of enhancing dyability compared to the case of using only green tea while using green tea powder or green tea extract. In addition to the cream and the liquid type, the present invention also provides a composition which is easy to use because it does not flow in the form of a powder using a powder type raw material including green tea powder, and does not flow in a liquid form.

Accordingly, the inventors of the present invention have conducted studies to complete a hair dye composition having improved dyeability using the above-mentioned green tea, and found that a green tea powder or a green tea extract; When an antioxidant, a thickening agent or purified water is further added to a hair dye composition containing a pH adjusting agent and a water soluble iron salt, dyeing performance is improved as compared with a hair dye containing only green tea and iron salt. In addition, oxidation type synthetic dye and hydrogen peroxide are not used, It is possible to prevent damage to the hair and to improve usability without stimulation, thus completing the present invention.

Accordingly, an object of the present invention is to provide a green tea powder or green tea extract; 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 exhibiting dyeability by mordanting tannin and iron of green tea. The present invention relates to a hair dye composition containing green tea, a pH adjusting agent and a water- Without the use of hydrogen peroxide, hair irritation can be avoided without damaging the scalp and ease of use can be improved.

The principle of iron salts such as tannin and ferric sulfate in green tea is that many hydroxyl groups (-OH) in tannin are coordinated with metal components to form complex compounds to color and attach to hair to dye hair will be. However, when only green tea is used for dyeing through mordanting, dyeability is insufficient. To solve this problem, the present invention provides a hair dyeing composition containing green tea, a pH adjusting agent and a water-soluble iron salt. More particularly, it relates to a green tea powder or green tea extract; a pH adjusting agent and a water-soluble iron salt, wherein the hair dye composition further contains at least one selected from an antioxidant, an agonist or purified water.

Hereinafter, each component contained in the hair dye composition of the present invention will be described in more detail.

The green tea used in the present invention is green tea (Thecha sinensis Linnaeus), an evergreen tree belonging to the genus (Theaceae) or a shrub. In the present invention, both green tea powder form and extract powder form can be used. The green tea powder used in the present invention is obtained by inactivating the oxidation-related enzymes by steaming tea leaves, stems or flowers, and finely grinding the green tea obtained by stably maintaining the polyphenol component. 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, epigallocatechin-3-gallate (EGCG), epigallocatechin-3-gallate is the most abundant, and polyphenol The ingredient is known to have various effects such as antioxidant, anti-cancer, anti-inflammatory, antibacterial, and deodorant, and is widely used as a raw material for cosmetics.

The green tea extract used in the present invention is extracted with ultrapure water using purified water to remove fine dust and the like, followed by immersing in 30 to 50% ethanol for 1 to 10 days at room temperature. The extract is centrifuged at 250 mesh to remove the foreign substance once more, and the filtrate is filtered with a 0.5 μm filter paper. After filtration, the solution was filtered three times through 3 μm, 1 μm, and 0.5 μm filter paper, and then a butylene glycol solvent was added.

In order to improve dyability in the hair dye composition of the present invention, a pH adjuster is used. Examples thereof include L-arginine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, potassium hydroxide potassium hydroxide, sodium hydroxide, sodium carbonate, aminomethyl propanol, ammonia water, and the like, phosphoric acid, lactic acid, glycolic acid, citric acid ), Organic acids or inorganic acids such as acetic acid, hydrochloric acid and sulfuric acid and salts thereof , And there is no particular limitation on the kind thereof, and a pH adjusting agent conventionally used in hair dyeing agents can be used. In particular, L-arginine is one of the amino acids constituting proteins and is one of the constituents of hair. When the L-arginine is used as a pH adjusting agent, not only the pH adjusting effect but also the hair protecting effect can be obtained at the same time.

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

Advantageous agents for improving ease of use while preventing problems such as flowing down when applying the hair dye composition of the present invention to hair include starch, hydroxyethylcellulose, polyquaternium, and cellulose Cellulose gum, and the like. Preferably, starch or hydroxyethyl cellulose is used.

In the hair dye composition of the present invention, the water-soluble iron salt 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 is composed of a first agent and a second agent, and in the case of the first agent, it can be formulated into a powder type, a liquid type, a cream, a lotion type, a gel type or the like. Particularly, when it is formulated into a powder type, there is an advantage that it can prevent oxidative discoloration of the green tea itself. In the case of the second agent, it can be formulated into liquid and cream, lotion type, gel type and the like.

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

Further, the second composition contains 0.1 to 10% by weight of a water-soluble iron salt based on the total weight of the second composition; 0.01 to 30% by weight of a reducing agent; And purified water of the remaining amount.

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

In addition to the green tea powder or green tea extract, the first composition according to the present invention may further contain 0.01 to 99% by weight, based on the total weight of the first composition, of a natural-derived dye such as hematin or pyrogallol in order to improve dyeability .

In addition, the hair dye composition of the present invention can be used within a range that does not impair the effect of the present invention. For example, metal chelating agents, higher alcohols, nonionic and anionic polymer thickeners and cationic surfactants such as cationic surfactants, anionic surfactants, nonionic surfactants, and amphoteric surfactants can be used alone or in combination . It is also possible to use a solvent such as ethanol, isopropyl alcohol and benzyl alcohol, a polyol such as propylene glycol, 1,3-butyleneglycol, and glycerin, a quaternary ammonium salt, a cationic polymer, a silicone, Known components that can be conventionally used in hair dyeing agents such as cosmetics, perfumes and the like, and are not limited.

As described above, according to the present invention, the hair dye composition exhibiting dyeability by the mordant of tannin and iron of green tea contains green tea, a pH adjusting agent and a water-soluble iron salt, and does not use oxidized synthetic dyes and hydrogen peroxide, Hair damage can be prevented and ease of use can be improved.

Hereinafter, the constitution and effects of the hair dye composition according to the present invention will be described with reference to Examples and Comparative Examples. In the examples and comparative examples, only the first agent and the second agent are used, or the first agent is used in the powder type and the gel type, and the second agent is in the liquid phase. However, the present invention is not limited to these examples, It can be applied to various forms.

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

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

[Table 1] Powder type first composition

[Table 2] Liquid phase Second composition

[Test Example 1] Evaluation of dyeability

In order to evaluate the dyeing power of the hair dye composition of Examples 1 to 3 and Comparative Examples 1 and 2, the first composition (powder type) of Examples 1 to 3 and Comparative Examples 1 and 2 2 (the liquid type) at a ratio of 1: 5, and then applied to the hair of 12 cm in length evenly by taking twice the amount of the hair weight. The hair used was one containing about 30% of gray hair. After 30 minutes of application, the hair was washed with running water using a shampoo solution for 1 minute and then dried using a hair drier. The color of the dried hair was measured using a color difference meter (model: Hunterlab Labscan XE). The results were compared using the change of L ^* value before and after dyeing measured by colorimeter. L ^* value is a value representing brightness. When L ^* value is larger, color is bright. Therefore, the larger the value of the difference in brightness before and after dyeing, the larger the value of DELTA L ^* , the darker the color is expressed, which means that the dyeability is excellent. The results are shown in Table 3 below.

[Table 3]

As shown in Table 3, the hair dyeing agents of Examples 1 to 3 containing green tea powder and L-arginine in the first agent were superior in color expressing power to those in Comparative Examples 1 and 2 not containing L-arginine, It was confirmed that the color expressing powers of Examples 2 and 3 in which L-arginine and pyrolactosulfate are contained together are superior. In addition, Example 3, which further contained a natural dye, hematene, was most excellent in dyeability.

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

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

[Table 4] Gel-type first composition

[Test Example 2] Evaluation of dyeability

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 composition (gel type) of Examples 4 to 6 and Comparative Examples 3 to 4 in Table 3 was used 2 (the liquid type) at a ratio of 1: 1 immediately before use, and then applied to the hair of 12 cm in length evenly by taking twice the amount of the hair. The hair used was one containing about 30% of gray hair. After 30 minutes of application, the hair was washed with running water using a shampoo solution for 1 minute and then dried using a hair drier. The color of the dried hair was measured using a color difference meter (model: Hunterlab Labscan XE). The results were compared using the change of L ^* value before and after dyeing measured by colorimeter. L ^* value is a value representing brightness. When L ^* value is larger, color is bright. Therefore, the larger the value of the difference in brightness before and after dyeing, the larger the value of DELTA L ^* , the darker the color is expressed, 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 in the form of gel, the hair dye of Examples 4 to 6 containing green tea powder and L-arginine exhibited color reproducibility as compared with Comparative Examples 3 to 4 which did not contain L-arginine It was confirmed that the color expressing powers of Examples 5 and 6, in which L-arginine and sodium pyrousulfate were contained together, were superior. In addition, Example 6, which further contained a natural dye, hematene, was most excellent in dyeability.

[Examples 7 to 8]

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

[Table 6] Integrated hair dye composition

 [Test Example 3] Evaluation of dyeability

In order to evaluate the dyeing power of the monolithic hair dye composition of Examples 7 and 8, Example 7 of Table 6 above was mixed with purified water at a weight ratio of 1: 5 immediately before use and then taken twice the hair weight The hair was evenly spread over 12 cm long hair. In Example 8, an amount of twice the weight of the hair was applied to the hair of 12 cm in length evenly. The hair used was one containing about 30% of gray hair. After 30 minutes of application, the hair was washed with running water using a shampoo solution for 1 minute and then dried using a hair drier. The color of the dried hair was measured using a color difference meter (model: Hunterlab Labscan XE). The results were compared using the change of L ^* value before and after dyeing measured by colorimeter. L ^* value is a value representing brightness. When L ^* value is larger, color is bright. Therefore, the larger the value of the difference in brightness before and after dyeing, the larger the value of DELTA L ^* , the darker the color is expressed, which means that the dyeability is excellent. The results are shown in Table 7 below.

[Table 7]

As shown in Table 7, the hair dyeing agents of Examples 7 and 8, which are powdery or gel-based monolithic hair dye compositions, were superior in color expressing power to those of Comparative Example 2 and Comparative Example 4 using only green tea powder.

Claims (12)

Green tea powder or green tea extract; L-arginine, a pH regulator; Sodium pyrosulfite or sodium sulfite as a reducing agent; Starch or hydroxyethylcellulose; And ferrous sulfate or ferric sulfate, which are water-soluble iron salts; ≪ / RTI > delete delete delete The method according to claim 1, i) green tea extract or green tea powder; Starch or hydroxyethylcellulose; And L-arginine as a pH controlling agent; and ii) a ferrous sulfate or ferrous sulfate which is a water-soluble iron salt; Sodium pyrosulfite or sodium sulfite as a reducing agent; And a second agent containing purified water. 6. The method of claim 5, Wherein the hair dye composition further comprises a reducing agent in the first agent. The method according to claim 6, Wherein the first agent further comprises a natural dye. delete The method according to claim 6, The reducing agent may be selected from the group consisting of sodium pyrosulfite, sodium sulfite, disodium pyrophosphate, trisodium pyrophosphate, tetrasodium pyrophosphate, propyl gallate, ascorbic acid, erythorbic acid, cysteine hydrochloride, sodium thiosulfate, sodium hexahydro ≪ / RTI > thioglycolic acid and thio lactic acid. 8. The method of claim 7, Wherein the natural dye is selected from hematin and pyrogallol. 10. The method according to any one of claims 5 to 7, 9 and 10, Wherein the first agent is formulated into a powder, a liquid, a cream, a lotion, or a gel, and the second agent is formulated into a liquid, cream, lotion or gel. 10. The method according to any one of claims 5 to 7, 9 and 10, Wherein the composition is mixed with the first agent and the second agent in a weight ratio of 1: 1 to 10 before dyeing.