JPH10182372A - Hair dye composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair dye composition excellent in hair-dyeing properties, safety and convenience by including an extract of a plant belonging to Pterocarpus of Leguminosae. SOLUTION: This hair dye composition includes 0.01-20wt.%, preferably 0.2-5wt.% extract of a plant belonging to Pterocarpus of Leguminosae. At least one kind selected from P. santalinus, P. macrocarpus and P. soyauxii is used as the plant belonging to the Pterocarpus, and the P. santalinus is preferable from hair-dyeing power. The extract is the separated and purified extract from an extracted essence or an extracted liquid. The extracted essence is obtained by performing a solvent extraction of the dried or pulverized plant, and the extracted liquid is used as it is, or by preparing a diluted agent, a concentrated extract, a dried powdery material or a pasty material. The hair dye composition provide no stimulation to skin or hair and is excellent in safety.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a hair dye composition, and more particularly, to a plant of the genus Pterocarpus,
In particular, the present invention relates to a simple hair dye composition containing an extract of coxitan and having excellent hair dyeing properties and safety.

[0002]

2. Description of the Related Art To dye hair, a method of oxidizing an oxidation dye mainly composed of p-phenylenediamine with an oxidizing agent such as hydrogen peroxide and then reacting the oxidized dye with a coupling agent has been proposed. There are many methods of dyeing hair by directly adsorbing or penetrating the hair into hair. However, the former method is capable of expressing good hair dyeing properties on hair, but is inconvenient because it requires the use of a mixture of an oxidation dye and an oxidizing agent. There is.
Furthermore, since hydrogen peroxide or the like acts under alkaline conditions at the time of treatment, there is a risk that primary irritation such as damage to hair, redness, and small water bubbles may occur depending on how to handle it. On the other hand, the latter method has many advantages such as easy hair dyeing and less irritation to the skin and hair, but uneven dyeing,
There is a problem of dyeing on the scalp and the like, and transfer to clothes, towels and the like.

[0003] In recent years, hair dyes and the like using natural dyes have been proposed for the purpose of solving such problems. However, the hair dyeability is poor and a desired color tone cannot be obtained. For practical reasons, there are few practical applications.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hair dye composition which is excellent in dyeing properties and which is safe and convenient for hair and skin.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, a hair dye composition containing an extract of a plant belonging to the genus Pterocarpus as an essential component has been obtained. The present invention has been found to be a hair dye composition which has excellent properties, is safe for hair and skin, and has excellent simplicity, and has completed the present invention.

That is, according to the present invention, there is provided a hair dye composition characterized by containing an extract of at least one plant selected from the Pterocarpus plant of the legume family.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the composition of the present invention will be described.
explain in detail. The hair dye composition of the present invention is characterized by containing an extract of at least one plant selected from plants of the genus Pterocarpus belonging to the legume family.

The pterocalps (Pt) used in the present invention
erocarpus) plants include coxitan (P. santalinus) and paddock (P. mac).
rocarpus), African Padauk (P. soy)
auxii) and the like, and in particular, coxitan is most preferable in terms of hair dyeing power. The extract may be an extract or an extract separated and purified from the extract.
In the case of an extract extract, the extract is obtained by drying or pulverizing the plant, and then extracting the extract with a solvent.This extract may be used as it is, or may be used as a diluent or a concentrated extract. Or a paste. As the extraction solvent, an organic solvent or a mixed solution of an organic solvent and water is used. Organic solvents include methanol, ethanol, butanol,
Linear lower alcohols such as glycerin, propylene glycol, polyhydric alcohols such as 1,3-butylene glycol, esters such as ethyl acetate, and carbonyl compounds such as acetic acid, N-methylpyrrolidone, and acetone can be appropriately used.

In the present invention, an extract of a plant belonging to the genus Pterocarpus, which is an essential component, can be added at any concentration.
Usually, 0.01 to 20% by weight, preferably 0.2 to 5% by weight is preferably blended. If the amount is less than 0.01% by weight, the hair dyeing properties are inferior, and if it exceeds 20%, no improvement in the hair dyeing properties is observed.

[0010] The hair dye composition of the present invention may optionally contain
Various components conventionally used in hair cosmetics, for example, stearic acid, cetostearyl alcohol, isocetanol, oleyl alcohol, liquid lanolin, oily raw materials such as vegetable oils, silicones such as methylpolysiloxane, fatty acid salts, alkyl sulfonates Anionic surfactants such as
Cationic surfactants such as alkyltrimethylammonium salts, nonionic surfactants, penetration enhancers such as benzyl alcohol and ethanol, solvents, polymer substances, pigments, antioxidants, moisturizers, preservatives and disinfectants, buffers, Amino acids,
Perfume, citric acid, glycolic acid, succinic acid, tartaric acid, lactic acid, phosphoric acid, hydrochloric acid, sulfuric acid, sodium hydroxide, potassium hydroxide, monoethanolamine, pH adjuster such as triethanolamine, etc. may be appropriately compounded. it can.

When the hair dye composition of the present invention is applied to hair, the hair dye composition of the present invention is applied to hair and then applied at normal temperature (preferably 15 to 40 ° C.) for 5 to 30 minutes. (Preferably 10 to 20 minutes). After this, the hair is shampooed by the usual method,
The remaining hair dye composition may be washed away.

[0012]

Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. All percentages shown below are based on weight.

In the following examples, the evaluation of hair dyeing properties was performed as follows. <Evaluation of Hair Dyeing Property> 1 g of the composition of the present invention having the composition shown in Table 1 below was applied to 10 cm, 1 g of goat white hair bundle, and
Let stand for minutes. Then rinsed with running water, shampooed / rinsed and dried. Color difference meter (manufactured by Nippon Denshoku Co., Ltd.)
The color change ΔE was measured to evaluate the hair dyeability. The ΔE value indicates that the larger the value, the better the hair dyeing property.

Example 1 and Comparative Examples 1 to 3 10 liters of a 50% ethanol solution was added to 1 kg of ground pulverized coxitan, and stirring extraction was repeated twice at room temperature. The extract was separated by filtration, and the filtrate was concentrated under reduced pressure.
g was obtained. A 2.0% solution having the composition shown in Table 1 below was prepared from the obtained extract, and its hair dyeing property was evaluated. As a result, the hair was dyed uniformly brown as shown in Table 1 below. The E value was 28.9. Further, for comparison, a commercially available natural pigment having the composition shown in Table 1 below was used.
A 0% solution was prepared, and its hair dyeability was similarly evaluated. As shown in Table 1 below, natural dyes currently on the market are:
Although a hair dyeing effect was recognized to some extent, none was satisfactory.

[0015]

[Table 1]

Example 2 A hair treatment composition (hair mousse) having the composition shown in Table 2 below was prepared, and its performance was evaluated. As a result, the composition exhibited an excellent uniform brown color tone and ΔE = 24. Exhibited a good hair dyeing effect.

[0017]

[Table 2]

Example 3 Hair treatment composition (hair gel) having the composition shown in Table 3 below
Was prepared, and its performance was evaluated. As a result, a brown color tone with excellent uniformity was exhibited, and a good hair dyeing effect of ΔE = 28 was exhibited.

[0019]

[Table 3]

Example 4 Hair treatment composition (cream) having the composition shown in Table 4 below
Was prepared and its performance was evaluated. As a result, it exhibited a brown color tone with excellent uniformity and exhibited a good hair dyeing effect of ΔE = 27.

[0021]

[Table 4]

Example 5 A hair treatment composition (foam split coat agent) having the composition shown in Table 5 below was prepared, and its performance was evaluated. , ΔE = 2
7 exhibited a good hair dyeing effect.

[0023]

[Table 5]

[0024]

Industrial Applicability The hair dye composition of the present invention contains an extract of at least one plant selected from the genus Pterocarpus of the legume family, and thus has excellent dyeing properties.
Moreover, it is safe and convenient for hair and skin.

Claims (1)

[Claims] 1. The legume family Pterocarpus (Pteroc)
(arpus) A hair dye composition comprising an extract of at least one plant selected from plants.