JPH0769850A - Composition for hair treatment - Google Patents

Abstract

PURPOSE:To obtain a composition for hair treatment capable of gradually dyeing white hair into a desired color tone, e.g. black purple to black under mild conditions without exhibiting allergic action and being simple also in dyeing operation. CONSTITUTION:This composition for hair treatment contains a water-soluble extract of a saxifragaceous plant, e.g. Saxifraga stlonifera Meerb. In this case, the water-soluble extract of the saxifragaceous plant is blended in an amount of 0.01-5.0wt.% (expressed in terms of condensed material) based on total amount of the composition. A polyvalent metal salt is preferably added to the composition so as to effectively carry out dyeing of white hair. As such a polyvalent metal salt, ferrous sulfate, ferrous chloride, ferric chloride, ferric acetate, etc., can be exemplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment composition capable of gradually dyeing gray hair to dark purple to black by daily use. More specifically, the present invention relates to a hair treatment composition that is highly safe for the human body and that can gradually exhibit a hair dyeing effect with a simple usage method.

[0002]

2. Description of the Related Art It has been conventionally desired to permanently dye white hair in a desired color tone, for example, black purple to black, so as to exhibit extremely high fastness to sunlight and fastness to washing. Two permanent hair dyeing methods are known as methods.

One method is to use an oxidative dye mainly containing p-phenylenediamines on the hair, a perborate,
A method is known in which after oxidation with a peroxidative inorganic salt such as percarbonate or an oxidizing agent such as hydrogen peroxide, a coupling reaction with a coupler such as resorcin is performed to develop color and dye hair. In this case, if the oxidizing dye and the oxidizing agent are allowed to coexist with water before being applied to the hair, the oxidation reaction proceeds, and the hair dyeing effect is reduced when the hair is applied to the hair. Therefore, as an actual hair dyeing method, before use, an oxidizing agent and a peroxide inorganic salt are mixed in a non-aqueous state, and water is mixed with this powder mixture, or a powdered one-agent method or an oxidation dye is used. Hair dyeing is performed by one of the two-agent system in which a first agent dissolved in an organic solvent and a second agent containing an oxidizing agent and water are separately prepared and mixed at the time of use.

As another method, a polyvalent metal salt such as ferrous sulfate is reacted with a chromic compound such as tannic acid, gallic acid, pyrogallol, dopa, hematein, etc., which develops a color upon reaction with this, on white hair. There is known a method of dyeing hair by allowing it to do so.

[0005]

However, in the method of dyeing hair using an oxidative dye and an oxidant, powder 1 is used.
In both cases of the two-agent method and the two-agent method, the hair dyeing power decreases with time after mixing the powder mixture and water, or the first agent and the second agent, respectively. Therefore, each drug must be uniformly and quickly mixed using a dedicated device immediately before its use, which causes a problem that the hair dyeing operation becomes very complicated. Moreover, there is a problem that the hair dyeing operation must be completed in a short time, and there is a large time constraint. Further, some of the oxidative dyes have a contact allergic effect and carcinogenicity, and the oxidant also has a very strong irritation to the skin, especially mucous membranes and eyes, which causes a problem of damaging the skin. In addition, when the white hair is dyed by the above-mentioned hair dyeing method, there is a problem that a third person feels unnatural because the color change of the hair before and after the hair dyeing is remarkable.

On the other hand, in the case of the method utilizing the reaction between the polyvalent metal salt and the color-forming compound, since the color-forming reaction proceeds gently, the gray hair is gradually dyed to black-purple to black under mild conditions. It can be used for hair and is easy to dye. However, many of the chromophoric compounds have a contact allergic effect, and some chromophoric compounds, such as pyrogallol and hematein, are said to show carcinogenicity not only in themselves but also in their reduced form, and thus are safe. I have a problem.

The present invention is intended to solve the problems of the prior art as described above, and it is highly safe and gradually dyes gray hair to a desired color tone by a simple operation under mild conditions. It is an object of the present invention to provide a hair treatment composition that can be used.

[0008]

[Means for Solving the Problems] The present inventors have investigated a water-soluble extract of a plant of the family Asteraceae without adding a dangerous oxidizing agent such as hydrogen peroxide to a polyvalent metal salt such as ferrous sulfate. It is possible to gradually dye black hair to black-purple to black by daily use under mild conditions by reacting with water on gray hair, and the water-soluble extract of Euphorbiaceae has high safety. It was found that the above-mentioned object can be achieved by utilizing the water-soluble extract of the plant of the family Saxifragaceae in a hair treatment composition, and completed the present invention.

That is, the present invention provides a composition for treating hair, which comprises a water-soluble extract of a plant of the family Saxifragaceae.

The present invention will be described in detail below.

The Saxifragaceae plant used as a chromogenic compound in the present invention is a perennial plant, which is known as "tiger ear grass" in the Chinese name (scientific name: Saxifraga stronifer).
a Meerb) and the like can be preferably exemplified. Particularly, in the present invention, it is preferable to use Yukinoshita from the viewpoint of hair dyeing effect, contact allergenicity, mutagenicity and the like. Regarding this Yukinoshita, the juice of the fresh leaves has anti-foggant, burns, swelling, anti-inflammatory effects against spoilage, etc., and also condensed tannins containing proanthocyanidins, which are highly galloylated epicatechin polymers, It is known to contain C17-32 alkanes and terpenes such as leaf alcohol, camphene, linalool, and borneol.

In the present invention, as described above, a water-soluble extract of the plant of the family Asteraceae is used. In this case, the form of the water-soluble extract is not particularly limited, and may be in a liquid form, a paste form, or a solid form, but a water-soluble extract of the Asteraceae plant without water (hereinafter referred to as a concentrate Tannin content of 5% by weight to 7%
It is preferable to use one containing 0% by weight. Examples of such a water-soluble extract of Yukinoshita include leaves of Yukinoshita in one or more solvents selected from water, lower alcohols such as ethanol, propylene glycol, alkylene glycols such as 1,3-butylene glycol. Those obtained by extraction can be used, and specific examples include Falcolex Yukinoshita MB (manufactured by Ichimaru Falcos Co., Ltd.) and the like.

In addition, in the hair treatment composition of the present invention, a water-soluble extract of the Asteraceae plant (concentrate equivalent)
0.01 to 5 of the total amount of the composition depending on the use (hair dye, shampoo, rinse, hair styling agent, etc.) and dosage form (solution, dispersion, emulsion, paste, foam, etc.) of the hair treatment composition. The content is preferably 0% by weight, and more preferably 0.1 to 3.0% by weight.

As described above, the water-soluble extract of the Asteraceae plant produces a black color on hair by reacting with a polyvalent metal salt such as ferrous sulfate under mild conditions. Therefore, it is possible to gradually dye white hair to blackish purple to black. In this case, the polyvalent metal salt may or may not be contained in the hair treatment composition of the present invention. That is, when the polyvalent metal salt is not contained in the hair treatment composition, the polyvalent metal salt is supplied to the hair from the outside of the hair treatment composition when dyeing gray hair. For example, it can be supplied by applying separately prepared polyvalent metal salt-containing aqueous solution to hair.

In order to increase the amount of polyvalent metal salt involved in hair dyeing to enhance the hair dyeing effect, it is preferable to include a polyvalent metal salt in the hair treatment composition. Examples of such polyvalent metal salts include ferrous sulfate, ferric sulfate, ferrous chloride, ferric chloride, ferrous acetate, ferric acetate, ferrous nitrate, ferric nitrate. Iron salts such as ammonium iron citrate, ferrous hydroxide, ferric hydroxide, ferrous phosphate, ferric phosphate, potassium ferrocyanide, potassium ferricyanide, zinc chloride, zinc nitrate, zinc sulfate, water Examples thereof include zinc salts such as zinc oxide and zinc acetate, lead salts such as lead acetate, lead sulfate, lead nitrate and lead chloride, and copper salts such as copper sulfate, copper hydroxide and copper chloride. It is preferable to use an iron salt, especially ferrous chloride, ferric chloride, ferrous sulfate, ferric sulfate, or the like.

The amount of such a polyvalent metal salt to be blended depends on the use and dosage form of the hair treatment composition, but is preferably 0.01 to 5.0% by weight in the hair treatment composition. To do so.

The hair treatment composition of the present invention may further contain various additives, which are used in ordinary hair treatment compositions, depending on the purpose of use. For example, alkylbenzene sulfonate, aliphatic alcohol sulfate, alkyl sulfonate, fatty acid alkanolamide, ethylene oxide addition product of aliphatic alcohol, linear or branched alkyl ammonium salt, wetting agent (emulsifier) such as dialkyl ammonium salt, higher fatty alcohol, Paraffin oil, petroleum jelly, lanolin, fatty acids, fatty acid esters, silicones, nonionic surfactants and other oily components, ethanol and other lower alcohols,
1,3-butylene glycol, propylene glycol,
Solvents such as polyhydric alcohols such as glycerin, penetration enhancers such as benzyl alcohol and benzyloxyethanol,
Thickeners such as methyl cellulose, hydroxyethyl cellulose, starch, antioxidants such as sodium sulfite, ascorbic acid or metal salts thereof, phase stabilization of organic acids such as oxalic acid, succinic acid, citric acid, tartaric acid or salts thereof Agents, sensitizers such as cationic polymers, preservatives, ultraviolet absorbers, liquefied petroleum gas, propellants such as dimethyl ether, and fragrances can be added as appropriate within the range not impairing the effects of the present invention.

The hair-treating composition of the present invention can be easily produced by uniformly mixing the water-soluble extract of Yukinoshita with other components according to a conventional method, and the dosage form in that case is also the present invention. Liquid according to the use of the hair treatment composition,
It can be in the form of gel, air foam, cream or the like. In particular, when the hair treatment composition of the present invention is used as a hair dye, it is preferably a quick breaking foam (QAF).

The hair treatment composition of the present invention can be applied to hair by a known method according to the form of use. For example, when used as a hair dye, the effect of the present invention can be obtained by a simple operation in which the hair treatment composition is simply acclimated to coat white hair and then washed with water.

[0020]

The composition for hair treatment of the present invention contains an aqueous extract of a plant of the family Asteraceae having a high degree of safety as a color-forming compound which develops a color as a polyvalent metal salt. This aqueous extract reacts with a polyvalent metal salt such as ferrous sulfate under mild conditions on gray hair without using a dangerous oxidizing agent such as hydrogen peroxide to develop a black purple to black color. . Therefore, by daily use, it becomes possible to gradually dye hair with high safety without causing a contact allergic reaction.

[0021]

[Examples] The hair treatment composition of the present invention will be specifically described below with reference to Examples.

The aqueous extract of Yukinoshita used in the examples was Falcolex Yukinoshita MB (containing nonvolatile content of 1.0 to 4.0 W / V%) [trade name, manufactured by Ichimaru Falcos Co., Ltd.].

Example 1 A foam hair dye was prepared by uniformly mixing the components having the composition shown in Table 1 to form a foam.

[0024]

[Table 1] Foamed hair dye composition Ingredient name Use amount (g) Water-soluble extract of Yukinoshita 30.0 Ferrous sulfate 0.20 Ascorbic acid 0.05 Ethanol 10.0 LPG 5.0 Succinic acid pH 4.5 Adjusted amount Poly Oxyethylene-sec-tetradecyl ether 1.0 Purified water balance meter 100.0g 5 g of the resulting foamy hair dye was used to wet hair with water (10%
After treating 10 g (including gray hair) at 30 ° C. for 30 minutes, it was thoroughly washed with tap water and air dried. When this operation was repeated 5 times, the gray hair became almost inconspicuous.

Example 2 A cream hair dye was prepared by uniformly mixing the components having the composition shown in Table 2 into a cream.

[0026]

[Table 2] Creamy hair dye composition Ingredient name Use amount (g) Water-soluble extract of Yukinoshita 20.0 Ferrous sulfate 0.2 Ascorbic acid 0.1 Propylene glycol 7.0 Polyoxyethylene (40) cetyl ether 3.0 Polyoxyethylene (20) cetyl ether 3.5 Liquid paraffin 0.5 Cetostearyl alcohol 8.5 1N NaOH pH 4.5 Adjusted amount Purified water balance 100.0 g 5 g of the obtained cream hair dye was used to wet water (1
10 g (including 0% gray hair) was treated at 30 ° C. for 30 minutes, washed well with tap water, and air-dried. When this operation was repeated 5 times, the gray hair became almost inconspicuous.

Example 3 A two-component system was prepared by uniformly mixing the first agent containing the polyvalent metal salt shown in Table 3 and the second agent containing the aqueous extract of Yukinoshita shown in Table 4. A hair dye was manufactured.

[0028]

[Table 3] First agent formulation composition Ingredient name Usage (g) Cetyltrimethylammonium chloride 5.0 Polyoxyethylene sorbitan monostearate 1.0 Cetostearyl alcohol 2.0 Liquid paraffin 1.5 Ferric chloride 1.0 Ascorbic acid 0 6.6 1N NaOH pH4.5 adjustment amount Purified water balance meter 100.0g

[0029]

[Table 4] Second agent combination composition Ingredient name Use amount (g) Yukinoshita water-soluble extract 20.0 Ascorbic acid 0.1 1N NaOH pH 7.0 Adjusted amount Purified water balance 100.0g 2.5 g of the obtained first agent was added to hair wet with water (10%
10 g (including gray hair) was treated at 30 ° C. for 15 minutes, rinsed with tap water, then treated with 2.5 g of the second agent at 30 ° C. for 15 minutes, thoroughly washed with tap water, and then air-dried. When this operation was repeated 5 times, the gray hair became almost inconspicuous.

[0030]

EFFECTS OF THE INVENTION According to the hair treatment composition of the present invention, hair can be dyed with high safety and under mild conditions. Moreover, white hair can be gradually dyed with a desired color tone, for example, black purple to black, by a simple operation.

Claims (2)

[Claims] 1. A hair treatment composition comprising a water-soluble extract of a plant of the family Saxifragaceae. 2. The hair treatment composition according to claim 1, which further contains a polyvalent metal salt.