JPH0680540A - Hair dyeing composition - Google Patents

Abstract

PURPOSE:To obtain a hair dye having improved fixing ratio, using an acid dye. CONSTITUTION:A composition comprising an acid dye, a thickening agent, a organic acid and water is mixed with benzyl alcohol and gum arabic to give a hair dye composition having excellently hair dyeing properties, high safety to hair and skin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to dyeing gray hair, and more particularly to improving the fixing ratio of acid dyes used in color rinse and the like to hair.

[0002]

2. Description of the Related Art The mainstream of the prior art for dyeing gray hair is to use an oxidative hair dye, which is a colorless, relatively small molecule that easily penetrates into the hair and exhibits a coloring effect by oxidation. Aromatic amines such as tolylenediamine are used alone or in combination of several kinds and oxidized with hydrogen peroxide solution or a more stable urea-hydrogen peroxide complex to form large colored molecules inside the hair and dyeing. Because it is possible to dye hair permanently by the method of hair,
Widely used for camouflaging white hair.
However, an oxidative hair dye containing paraphenylenediamine or paratolylenediamine in this method may be used in some cases because of the use of aromatic amines and the action of hydrogen peroxide as an oxidizing agent under alkaline conditions. Some people need to do a batch test before using it to damage their hair or cause skin irritation to some people,
It's not always safe to say.

The second method is a color rinse in which an acid dye having a high safety for the scalp and hair is added to the hair rinse, which is a hair rinse after washing with a shampoo.
At the same time as the role of rinse, it makes the gray hair inconspicuous. The acid dye used is not a single dye but various dyes can be obtained by using various dyes. However, in this method, the amount of acid dye used is very small, and since it is a surfactant used to enhance the rinsing effect, it can be said that the dyeability on hair is extremely low.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and uses an acid dye, which has excellent dyeability for hair and is more safe for hair and skin. An object of the present invention is to provide a hair dye composition having high composition.

[0005]

Means for Solving the Problems As a result of various studies by the present inventor, the above object was obtained by adding a combination of benzyl alcohol and arabic gum to a composition consisting of an acid dye, a thickener, an organic acid and water. It was found that a hair dye composition that achieves the above can be obtained. The hair dye composition of the present invention is described in detail below.

The acid dye used in the hair dye composition of the present invention is a legal dye used in cosmetics and has a color index number of C.I. I. 20470 (black 40
No. 1), C.I. I. 60730 (purple No. 401), C.I.
I. 15510 (daidai color No. 205), C.I. I. 19
140 (yellow No. 4), C.I. I. 16225 (red 102
No.), C.I. I. 45100 (Red No. 106) and C.I.
I. A highly safe acid dye such as 42053 (Green No. 3) can be preferably used. The amount of the acid dye used is preferably 0.02-2.00% in the hair dye composition.
(Weight), and more preferably 0.05-1.00%
(Weight).

As the thickener used in the hair dye composition of the present invention, a water-soluble polymer compound can be preferably used. Particularly preferably, xanthan gum, sodium carboxymethylcellulose, sodium alginate, polyvinylpyrrolidone, polyvinyl alcohol and the like can be used. The amount of the thickener used in the hair dye composition is preferably 0.5-4.0% (weight), and more preferably 1.0-3.0% (weight).

Further, the organic acid used in the hair dye composition of the present invention preferably has a carboxylic acid group, particularly preferably tartaric acid, citric acid, adipic acid, propionic acid, malic acid, lactic acid, itaconic acid and fumaric acid. An acid or the like can be used. In this case, the amount of the organic acid used in the composition is preferably 0.1-2.0% (weight), more preferably 0.3-1.0% (weight). The organic acid used in the present invention is a pH adjuster, and the hair dye composition of the present invention preferably keeps the pH at 3-5.
When the pH is 2 or less, the hair or skin tends to be damaged, and when the pH is 6 or more, the dyeability on the hair tends to decrease.

Next, benzyl alcohol, which is one of the important factors of the present invention, is a permeation enhancer of the acid dye in the hair dye composition of the present invention into the hair, and in the hair dye composition of the present invention. The amount used for is 1-7% (by weight), preferably 3
-4% (by weight). Further, gum arabic, which is an important second factor of the present invention, has an action of permeating into hair or fixing a dye dyed on the surface (adhesion between hair and dye). The amount of gum arabia used in the hair dye composition is 0.5-5.0% (weight), preferably 1.0-3.0% (weight). All the components other than the above-mentioned components constituting the hair dye composition of the present invention are water, and the total amount is adjusted with this water. It is preferable to use ion-exchanged water, and in this case, the amount of water used is in the range of 80-97% (weight) in the hair dye composition.
Regarding the action of benzyl alcohol and gum arabic, which is a major factor relating to the dyeability of the acid dye of the present invention on hair, benzyl alcohol acts as a penetration enhancer of the acid dye that permeates the hair, and is suitable. It is understood that gum arabic, which has surface tension, has the effect of strengthening the fixation of the acid dye that has penetrated into the hair.

Further, in the hair dye composition of the present invention, lower alcohol, perfume, preservative and the like can be appropriately used in addition to the above-mentioned necessary components so as not to impair the stability and pH range. The hair dye composition of the present invention can be provided in gel, emulsion, cream, and mousse to foam dosage forms. In order to prepare a gel, emulsion or cream dosage form, for example, an emulsifier, a solubilizer, a stabilizer, a hair styling base and the like usually used in the field of cosmetics are added to the hair dye composition of the present invention. It can be manufactured in the usual way. In order to obtain a mousse-to-foam formulation, for example, the hair dye composition of the present invention contains 1% (wt) or less of a nonionic surfactant and 0.5-1 of a thickener. % (Weight) may be added to an aerosol can together with a liquefied injection gas such as a chlorofluorocarbon gas or a propane-based gas, and it may be adjusted so as to inject from a mousse to a foam at the time of use. To carry out dyeing of hair using the hair dye composition of the present invention, the hair dye composition of the present invention is applied to hair at 15-50 ° C. and after a working time of about 5-20 minutes, post-hair Can be washed and dried.

[0011]

The effect of the present invention is to apply the hair dye composition of the present invention to hair, wash the hair with a shampoo or the like, and then apply the present agent to the hair without water drying with a hand, a comb, a brush, a brush, etc. Then
After leaving it for 5-20 minutes, rinse with water or hot water,
You can dye your hair well without damaging your hair

[0012]

The present invention will be described in more detail with reference to the following examples. [Example 1] (Composition)
Black 401 18 mg Purple 401 18 mg Orange 205 18 mg Eco-gum T (xanthan gum) 1.0 g Tartaric acid 0.4 g Ion-exchanged water 75 cc Benzyl alcohol 4 g and 1 in the composition having the above composition.
20% 0% gum arabic solution (using ion exchange water)
(2% gum arabic with respect to the composition) was added, and the mixture was thoroughly stirred until it became uniform to obtain a hair dye composition. The obtained hair dye composition was applied to hair mixed with white hair that had been washed with a shampoo, allowed to stand for 5 minutes and then rinsed with hot water to dye the hair dark brown. Furthermore, by prolonging the standing time after application, the hair could be dyed in darker dark brown. The results are shown in [Table 1].
Shown in.

[Comparative Example 1] For comparison with the present hair dye composition, 4 cc of ion-exchanged water was added in place of 4 g of benzyl alcohol in Comparative Example 1 (Comparative Product 1).
20 cc of ion-exchanged water was added in place of 20 g of a 0% aqueous gum arabic solution (Comparative Product 2), a commercial color rinse A.
(Composition red 227, orange 205, yellow 4
No. 401, purple No. 401, black No. 401, benzyl alcohol
, Lauryl sulphate, cetanol and perfume) (comparative product 3) and a commercial color rinse B (composition orange 2)
No. 05, purple No. 401, black No. 401, benzyl alcohol, parabens and fragrances (Comparative Product 4) were subjected to the same operation procedure as in Example 1 for sensory evaluation. The results are shown in [Table 1] below.

[0014]

[Table 1] From [Table 1], the dyeability of hair without benzyl alcohol or gum arabic and the commercially available color rinses A and B were inferior to those of Example 1 of the present invention. Further, in the case of Example 1, no injury such as a rash on the skin was observed at all.

[Example 2] In the hair dye composition of Example 1,
10 mg of para-oxybenzoic butyl esul as a preservative
When added, the same result as in Example 1 was obtained.

Example 3 (Composition) Black 401 30 mg Purple 401 18 mg Daidai 5 mg Carboxymethylcellulose sodium 2 g Citric acid 0.8 g Ion-exchanged water 72 cc 3 g and 1 g of benzyl alcohol were added to the composition having the above composition.
20% of 5% gum arabic solution (using deionized water)
(3% gum arabic with respect to the composition) was added, and the mixture was thoroughly stirred until it became uniform to obtain a hair dye composition. The obtained hair dye composition was used for hair with white hair in the same manner as in Example 1, and the hair could be dyed gray. The results are shown in [Table 2].

[Comparative Example 2] 3 g and 15 of benzyl alcohol used in this example for comparison with the present hair dye composition.
% Aqueous gum arabic solution (20 g) was added in place of ion-exchanged water (23 cc) (comparative product 5) and commercially available color rinse C (composition daidai 205, purple 401, black 4)
No. 01, benzyl alcohol, sorbic acid and perfume)
Using (Comparative product 6) of No. 1, the same operation procedure as in Example 1 was performed and sensory evaluation was performed. The results are shown in [Table 2].

[0018]

[Table 2] From Table 2, the dyeability of hair without benzyl alcohol and gum arabic and with the commercially available color rinse C was inferior to that of Example 3 of the present invention. Further, in the case of Example 3, no injuries such as skin irritation were observed at all.

[0019]

EFFECTS OF THE INVENTION The hair dye composition of the present invention can dye hair in various color tones by combining with a safe acid dye. Furthermore, the dyeability on the hair is very excellent, and the safety on the hair and the skin is high.

Claims (1)

[Claims] 1. A composition comprising an acid dye, a thickener, an organic acid and water, which is added in combination with benzyl alcohol and gum arabic, and is excellent in dyeability, and to hair and skin. And highly safe hair dye composition.