KR20110060379A - Hair dye composition comprising catechin - Google Patents

Abstract

PURPOSE: A hair dyeing composition containing green tea catechin and pH adjusting agent is provided to excellent dyeing property and color lasting property. CONSTITUTION: A hair dyeing composition contains a first agent containing 0.01-99.0 weight% of green tea catechin and 0.01-30 weight% of pH adjusting agent and a second agent containing 0.1-10 weight% of mordant. The first agent further contains gallic acid or derivatives thereof. The pH adjusting agent is L-arginine, monoethanol amine, triethanol amine, potassium hydroxide, sodium hydroxide, aminomethyl propanol, phosphoric acid, glycolic acid, citric acid, or acetic acid. The first agent is formulated in powder, liquid, cream, lotion, or gel. The second agent is formulated in liquid, cream, lotion, or gel.

Description

Hair dye composition containing catechin {HAIR DYE COMPOSITION COMPRISING CATECHIN}

The present invention relates to a hair dye composition.

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 generally referred to as "oxidative hair dyes." 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 alkali content 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. Oxidative dyes can also cause allergic reactions in some people.

Semi-permanent hair dyes are relatively large in size compared to oxidative dyes and therefore cannot penetrate deep into the hair (up to the cortex layer).

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

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. 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 inventors have completed the present invention by confirming excellent dyeing and color persistence by using catechin extracted from green tea.

Accordingly, it is an object of one embodiment of the present invention to provide a hair dye composition containing green tea catechin.

Other objects and advantages of the present invention will become apparent from the following detailed description and claims.

In order to achieve the above object, an embodiment of the present invention provides a hair dye composition comprising a first agent containing green tea catechin and a pH adjusting agent and a second agent containing a mordant.

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

The hair dye composition according to the embodiment of the present invention has almost no skin irritation, hair damage, allergy, etc., because it uses green tea catechin and does not use an oxidized synthetic dye and hydrogen peroxide. It is also very good in terms of dyeability and color persistence.

The present invention is described in more detail below.

Green tea catechin used in one embodiment of the present invention is a component derived from the extract of green tea. Green tea generally contains 10-15% of catechins. Because of the low catechin content, dyeing using green tea has the disadvantage that dyeing power is lower than dyeing with catechin alone. In addition, when using the green tea dyeing if you use a lot of green tea to improve the dyeing power is not easy to formulate, rather the dyeing power is lowered due to other ingredients.

In one embodiment of the present invention based on the total weight of the first agent composition, the green tea catechin may contain 0.01 to 99.0% by weight, preferably 0.1 to 50% by weight, more preferably 0.5 to 10% by weight. If it is less than 0.01% by weight, it is not effective for dyeing power, and if it is more than 99.0% by weight, there may be a problem in formulating it conveniently.

In one embodiment of the present invention, the pH adjusting agent may contain 0.01 to 30% by weight, preferably 0.1 to 20% by weight, more preferably 1 to 10% by weight, based on the total weight of the first agent composition. If less than 0.01% by weight has no effect on dyeing power, 30% by weight is too high pH is too high dyeing power, scalp irritation and hair damage may be severe and difficult to use.

In one embodiment of the present invention, the mordant based on the total weight of the second agent composition may contain 0.1 to 10% by weight, preferably 1.0 to 7% by weight. If less than 0.1% by weight has no effect on the dyeing power, more than 10% by weight is difficult to stabilize the formulation.

In one embodiment of the invention the first agent further contains a molar asset or ester derivative thereof. The molar asset or ester derivative thereof serves to increase the rate of penetration of the colorant into the hair and to help penetrate deeper.

The molar assets or ester derivatives thereof may be contained in an amount of 0.01 to 10% by weight, preferably 0.01 to 5% by weight, more preferably 0.2 to 2% by weight, based on the total weight of the first agent composition. If it is less than 0.01% by weight, sufficient dyeing effect cannot be obtained, and if it is more than 10% by weight, no further improvement in color development power can be expected, and the formulation is unstable, such as viscosity decrease.

In one embodiment of the present invention, the first agent may further contain one or more selected from the group consisting of a reducing agent and an antioxidant.

At least one selected from the group consisting of the reducing agent and the antioxidant may be contained in an amount of 0.01 to 30% by weight, preferably 0.1 to 10, based on the total weight of the first agent composition. If it is less than 0.01% by weight, sufficient dyeing effect cannot be obtained. If it is more than 30% by weight, the reaction is too slow and the dyeing effect is inferior.

In one embodiment of the present invention, in addition to the green tea catechins, natural-derived dyes, malted esters, pyrogallol, logwood, yellowish white, rhubarb, firefighting, vinegar, cochinil, scallop, safflower, turmeric, gardenia, gardenia, persimmon Although, gall bladder, alder, etc. can be used, It does not specifically limit in the kind, Usually, the dye derived from the nature which can be embedded can be used.

In one embodiment of the present invention, a pH adjusting agent is used to improve the dyeability, L-arginine, monoethanolamine (monoethanolamine), triethanolamine (triethanolamine), potassium hydroxide, sodium hydroxide (sodium hydroxide), sodium carbonate ( sodium carbonate), alkaline agents such as aminomethyl propanol, phosphoric acid and salts thereof, lactic acid and salts thereof, glycolic acid and salts thereof, citric acid and salts thereof, Although acetic acid etc. are mentioned, 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. Therefore, the use of L-arginine has the advantage that can be obtained with not only pH control effect but also hair protection effect.

In one embodiment of the present invention, a reducing agent is used for improving hair dyeability and stabilization of iron salts, which may be conventionally used in the art, and is not particularly limited in kind. For example, sodium pyrosulfite, It may be at least one selected from the group consisting of sodium sulfate, thioglycolic acid, thiolactate, cysteine and salts thereof.

Antioxidants may be used in one embodiment of the present invention, as long as they are commonly used in the art, and are not particularly limited in kind. For example, it may be at least one selected from the group consisting of ascorbic acid, erythorbic acid and salts thereof.

In addition, cationic surfactants, anionic surfactants, nonionic surfactants and zwitterionic surfactants may be used alone or in combination as higher alcohols, nonionic and anionic polymer thickeners and surfactants for increasing purposes. And solvents such as ethanol, isopropyl alcohol, benzyl alcohol, polyols such as propylene glycol, 1, 3-butylene glycol and glycerin, and quaternary ammonium salts, cationic polymers, silicones, amino acids and proteins as hair conditioning agents. And well-known components, such as a fragrance | flavor, can be mix | blended.

The mordant used in one embodiment of the present invention may be ferrous chloride, ferric chloride, ferrous sulfate, ferric sulfate and the like and salts thereof and hydrates thereof. In addition to this, lye, iron rod, alum, and the like, and water-soluble metal salts such as Al, Cu, Cr, Fe, Sn, and Ni, which are synthetic mortars, can be used. Anything that can be used can be used.

In one embodiment of the present invention, the content properties can be formulated as powder, liquid, cream, lotion type or gel for the first agent. In particular, the powder type has the advantage of preventing oxidative discoloration of green tea catechin. The second agent may be formulated as a liquid, cream, lotion or gel.

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 were used in a cream type, but the present invention is not limited to these examples, and the present invention can be applied in various forms such as liquid, foam type, and lotion type.

[Manufacturing Example]

Green tea catechin used in the present invention was prepared using green tea (Green tea / Thea sinensis Linnaeus), an evergreen tree or shrub belonging to theaceae. The green tea leaves were extracted with hot water at about 80 ° C., and the extract was filtered through a column, concentrated and spray dried to obtain green tea catechin. In the present invention, but using a catechin content of 70%, but the present invention is not limited thereto.

[Examples 1-4 and Comparative Example 1]

A powder type first agent and a liquid type second agent composition were prepared as shown in Table 1 below.

First agent composition (unit: wt%) 1st Example 1 Example 2 Example 3 Comparative Example 1 Green Tea Catechin 2.0 1.5 1.0 - Informal assets - 0.5 1.0 2.0 L-arginine 0.1 0.1 0.1 0.1 Erythorbic acid 0.3 0.3 0.3 0.3 Hydroxyethyl Cellulose 1.0 1.0 1.0 1.0 Monoethanolamine thiogly
Kolic acid 2.0 2.0 2.0 2.0 L-cysteine 1.0 1.0 1.0 1.0 Sodium hydroxide 1.0 1.0 1.0 1.0 Element 10.0 10.0 10.0 10.0 Purified water Quantity Quantity Quantity Quantity

 Second composition (unit: wt%) content Hydroxyethyl cellulose 1.0 Ferrous sulfate 5.0 Sodium pyrosulfite 0.2 Erythorbic acid 0.2 Salicylic acid 0.3 Purified water Quantity

Test Example 1 Dyeability Evaluation

In order to test the dyeability, the composition shown in Examples and Comparative Table 1 above was doubled to the weight of the hair, evenly applied to 23 cm of standard hair, and left for 20 minutes. Left for 20 minutes. As the standard hair, black hair was used with 20-30% of white hair. After the application and the leaving time was completed, using a shampoo liquid in the flowing water using the shampoo liquid for 1 minute and then dried using a hair dryer. Dry hair color was measured using a colorimeter (Hunterlab Labscan XE). The results were compared using the L ^* value after dyeing measured with a color difference meter. The L ^* value is a numerical value representing the brightness, and the larger the L ^* value, the brighter the color. Therefore, the smaller the L ^* value means that the color is expressed more deeply, which means that the dyeability is excellent. The results are shown in Table 3.

Example 1 Example 2 Example 3 Comparative Example 1 L ^* 15.83 13.75 14.53. 16.86

As shown in Table 3, it was confirmed that the dyeing properties of Examples 1 to 3 using only catechin alone or a combination of the methamine and catechin compared to Comparative Example 1 using only the moles. In particular, it was confirmed that the dyeing properties and catechins are more excellent when used together.

[Test Example 2] Color Persistence Evaluation

The hair dyed in Test Example 1 was added to the shampoo solution, shaken at a speed of 200 rpm for 30 minutes using a shaker, and then rinsed with running water for 1 minute and dried with a hair dryer. After repeating this process three times, the color persistence was evaluated using the difference between L ^* value and ΔL ^* value in Test Example 1 using a color difference meter after drying. Smaller ΔL ^* values indicate better color persistence. The results are shown in Table 4 below.

Example 1 Example 2 Example 3 Comparative Example 3 ΔL ^* 2.79 1.73 2.14 4.1

As shown in Table 4, it can be confirmed that the color persistence of Examples 1 to 3 using catechin alone or a methine and catechin alone, compared to Comparative Example 1 using only the moles. In particular, it was confirmed that the color persistence was better when using the methamine and catechin together.

Having described the specific part of the present invention in detail, it is apparent to those skilled in the art that such a specific technology is only a preferred embodiment, and the scope of the present invention is not limited thereto. Thus, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.

Claims (12)

A hair dye composition comprising a first agent containing green tea catechin and a pH adjusting agent and a second agent containing a mordant. The method of claim 1, The first agent is a hair dye composition, characterized in that it further contains a molar property or a derivative thereof. The method of claim 1, Based on the total weight of the first agent composition green tea catechin is contained 0.01 to 99.0% by weight, pH adjuster is contained 0.01 to 30% by weight, based on the total weight of the second agent composition containing 0.1 to 10% by weight of mordant A hair dye composition, characterized in that. 3. The method of claim 2, The hair dye composition or a derivative thereof is a hair dye composition, characterized in that contained 0.01 to 10% by weight based on the total weight of the first agent composition. The method of claim 1, The first agent is a hair dye composition, characterized in that it further contains one or more selected from the group consisting of a reducing agent and an antioxidant. The method of claim 5, At least one selected from the group consisting of a reducing agent and an antioxidant is contained in 0.01 to 30% by weight based on the total weight of the first agent composition. The method of claim 1, The first agent is one or more natural dyes selected from the group consisting of pyrogallol, logwood, yellowish white, yellow lotus, firefighting, self-contained, cochineal, spinach, madder, safflower, turmeric, gardenia, lump, persimmon, gall bladder and alder A hair dye composition further comprising. The method of claim 1, The pH adjusting agent is one or more selected from the group consisting of L-arginine, monoethanolamine, triethanolamine, potassium hydroxide, sodium hydroxide, sodium carbonate, aminomethylpropanol, phosphoric acid, lactic acid, glycolic acid, citric acid, acetic acid Hair dye composition. The method of claim 1, The reducing agent is a hair dye composition, characterized in that at least one selected from the group consisting of sodium pyrosulfite, sodium sulfite, thioglycolic acid, thiolactate, cysteine and salts thereof. The method of claim 1, The antioxidant is a hair dye composition, characterized in that at least one selected from the group consisting of ascorbic acid, erythorbic acid and salts thereof. The method of claim 1, The mordant may be salts of ferrous chloride, ferric chloride, ferrous sulfate or ferric sulfate and hydrates thereof; Water-soluble metal salts of Al, Cu, Cr, Fe, Sn or Ni and salts thereof; lye; Iron bars; And a hair dye composition, characterized in that selected from the group consisting of alum. The method according to any one of claims 1 to 11, Wherein said first agent is formulated into a powder, liquid, cream, lotion or gel, and said second agent is formulated into a liquid, cream, lotion or gel.