JPH10287535A - Semipermanent hair dye composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition which affords sufficient dyeing property and high conditioning effect and possesses viscosity stability by adjusting an aqueous solution containing an aromatic alcohol and a direct dye with an acid in a specific pH range and then adding a water-soluble anionic polymer and a cationic polymer. SOLUTION: This composition is obtained by mixing (A) an aromatic alcohol (e.g. benzyl alcohol and the like) with (B) a cationic compound (e.g. a hydroxyethylcellulose dimethyldiallyl ammonium chloride copolymer and the like), (C) a water-soluble anionic polymer (e.g. a carboxyvinyl polymer and the like), (D) a direct dye (e.g. 4-nitro-o-phenylenediamine and the like) and an organic acid or an inorganic acid (e.g. citric acid, hydrochloric acid, etc.), and adjusting pH to 1.5-4 and viscosity to 1,000 centistokes or more. The components D and E in the above component are preferably formulated in amounts of 0.1-5 wt.% and 0.1-15 wt.%, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-permanent hair dye composition which is excellent in hair dyeing power, has a small change in viscosity under high temperature and with time, and improves the feel of hair after use.

[0002]

2. Description of the Related Art Conventionally, a semi-permanent hair dye composition using a direct dye generally has a basic skeleton of a direct dye, an aromatic alcohol and an acid, and its viscosity is adjusted by a polymer compound.

[0003]

One of the major conditions under which these acidic hair dyes exhibit hair dyeing power is to adjust the pH of the composition to 1.
It is important to adjust the pH to the range of 5 to 4.0.
Above, the hair coloring power is remarkably reduced, and the effect as a hair coloring material cannot be sufficiently exhibited. On the other hand, in order to increase the amount of dye liquor attached to the hair or to prevent the liquor from dripping, it is usual to blend a polymer compound to increase the viscosity. (40 ° C. or higher) and it is difficult to maintain a constant viscosity over a long period of time, and the viscosity becomes too low to become liquid, or the viscosity becomes too high to apply to the hair, so that it is more stable. It is a major problem to select and blend a polymer compound.

The addition of a cationic activator or a cationized polymer to wash out the dyeing liquor or to improve the finished hair feel is disclosed in Japanese Patent Application Laid-Open No. 4-134015. However, the cationic active agent forms a complex with the acid dye, resulting in a problem that the dyeing property to the hair is reduced, and there is also a case where the feeling is improved by a combination of the cationic polymer and the anionic active agent. You can see,
It was not always satisfactory, and furthermore, there was a problem in stability and it was difficult to commercialize it.

[0005] As described above, there is a demand for a semi-permanent hair dye composition that has both high dyeing properties and a conditioning effect, and that has good stability.

The present invention has been made to solve such a problem.

[0007]

The present inventors have made intensive studies to solve the above problems, and as a result, prepared an aqueous solution comprising an aromatic alcohol and a direct dye to pH 1.5 to 4.0 with an acid. By adding a water-soluble anionic polymer and a cationic compound to the mixture, it is possible to obtain sufficient dyeing properties and a high conditioning effect, and to secure viscosity stability at high temperatures (40 ° C. or higher) and for a long period of time. As a result, the present invention has been completed.

That is, the present invention provides one or more polymer compounds selected from the group consisting of (a) an aromatic alcohol, (b) a cationic compound, and (c) a water-soluble anionic polymer compound; One or more selected from the group consisting of (d) a direct dye and (e) an organic acid or an inorganic acid are blended, the pH is 1.5 to 4, and the viscosity is 1000.
It is intended to provide a semi-permanent hair dye composition having a centistoke or more.

In the present invention, the component (a) aromatic alcohol includes benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamon alcohol, anis alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol Benzyloxyethanol, phenoxyethanol and the like.

As the component (b) cationic compound, 4
Cationic activators represented by quaternary ammonium salts, acid-neutralized tertiary amidoamines, cationized cellulose derivatives, cationized guar gums, quaternized polyvinylpyrrolidone derivatives, diallyl quaternized ammonium salt polymer derivatives, etc. And the like, preferably a nitrogen-containing cationic polymer, for example, hydroxyethylcellulose dimethyldiallylammonium chloride copolymer, hydroxyethylcellulose hydroxypropyltrimethylammonium chloride, vinylpyrrolidone / dimethylaminoethyl methacrylic acid copolymer Cationized product, homopolymer of dimethyldiallylammonium chloride, dimethyldiallylammonium chloride
Acrylamide copolymer Dimethyl diallyl ammonium chloride / acrylic acid copolymer can be exemplified.

[0011] Particularly, commercially available products include polymer JR-12.
5. Hydroxyethylcellulose hydroxypropyltrimethylammonium chloride such as Polymer JR-400 and Polymer LR-400 (manufactured by Union Carbide), and hydroxyethylcellulose dimethyldiallylammonium chloride such as Cellcoat L-200 and Cellcoat H-60 (manufactured by National Starch). A cationized product of a cellulose derivative represented by a copolymer is preferred.

Component (c) Examples of the water-soluble anionic polymer include natural polymers such as curdlan, pullulan, hyaluronic acid, sodium alginate, pectin, tragacanth gum, duran gum, xanthan gum, carboxymethyl starch, and carboxyvinyl polymers. And synthetic polymer compounds such as polyacrylic acid and sodium polyacrylate, and semi-synthetic polymer compounds such as carboxymethylcellulose. Compounds are preferred. Among them, carboxyvinyl polymer, polyacrylic acid, sodium polyacrylate, and carboxymethylcellulose, which are anionic polymers having innumerable carboxylic acids and having a molecular weight of 50,000 or more, are preferable in terms of viscosity stability.

The viscosity of the semi-permanent hair dye composition stabilized by the component (b) and the component (c) in the present invention is 1000 cm to increase the amount of the dye solution attached to the hair and to prevent dripping. Stokes or more are preferable, and 1000 to 100,000 centistokes or less are particularly preferable. If it is less than 1000 centistokes, it is not preferable in terms of sagging and dyeing.
Above 10,000 centistokes, stretch on the hair becomes worse. The amounts of component (b) and component (c) are the amounts necessary for adjusting the viscosity to the above range, and are not particularly limited.

The component (d) direct dye in the present invention includes 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, piclamic acid, 1-amino-4-methylanthraquinone, 1,4-diamino Anthraquinone, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picric acid, and salts thereof, "Ministerial ordinance stipulating tar dyes that can be used in pharmaceuticals, etc." (Notified in 1966, Ministry of Health and Welfare) Red No. 2, Red No. 3, Red 102 which are acid dyes specified by
No., Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 201, Red No. 227, Red No. 230
No. (1), Red No. 230 (2), Red No. 231, Red No. 232, Red No. 401, Red No. 502, Red No. 503
No., Red No. 504, Red No. 506, Yellow No. 4, Yellow No. 5
No. Yellow 202 No. (1), Yellow No. 202 (2), Yellow No. 203, Yellow No. 402, Yellow No. 403 (1), Yellow No. 406, Yellow No. 407, Orange No. 205, Orange No. 207 No., No. 402, Green No. 3, Green No. 204, Green No. 205, Green No. 401, Green No. 402
No., Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202
No. 203, Blue No. 205, Blue No. 201, Black No. 401, and the like. The amount of the component (d) is
It is preferably from 0.1 to 5% by weight, and if it is less than 0.1% by weight, the dyeability is weak, and if it exceeds 5% by weight, no improvement in the dyeability is observed. Further, 0.15 to 3% by weight is particularly preferable.

As the component (e) acid, widely used organic acids or inorganic acids can be used. For example, citric acid, glycolic acid, succinic acid, tartaric acid, lactic acid, fumaric acid, malic acid, levulinic acid, Butyric acid, valeric acid, oxalic acid,
Organic acids such as maleic acid, fumaric acid and mandelic acid, and inorganic acids such as phosphoric acid, hydrochloric acid, sulfuric acid and nitric acid can be mentioned.

Further, by simultaneously adding a sodium salt, a potassium salt, an ammonium salt and the like of these acids, it is possible to provide a buffering capacity in the system. This can reduce the change in pH over time,
This leads to stabilization of the system. The amount of component (e) is the amount necessary to adjust the pH of the composition to 1.5 to 4.0,
0.1 to 15% by weight, especially 1 to 10% by weight is preferred.
If the pH is lower than 1.5, it is not preferable in terms of stability of the dye and irritation to the skin. If the pH is higher than 4.0, a sufficient hair dyeing power cannot be obtained.

Further, the composition of the present invention may contain organic compounds such as ethyl alcohol, propyl alcohol, butyl alcohol, glycerin, ethylene glycol and N-methylpyrrolidone which are used in ordinary cosmetics, unless the object of the invention is impaired. Solvents, nonionic thickeners such as hydroxyethylcellulose and polyacrylamide, silicones, anionic activators, nonionic activators, fragrances, preservatives, ultraviolet absorbers, antioxidants, animal and plant extracts, fungicides, etc. May be blended.

In order to dye the hair using the semi-permanent hair dye composition of the present invention, the hair dye is applied to the hair, left for a while, and then the hair dye remaining on the hair is removed by a usual method, for example, shampoo. Just wash it away. When leaving, leave it as it is or cover it with a cap.
It may be left for up to 40 minutes, but 30-60
It is preferable to heat at 5 ° C. (more preferably 35 ° C. to 50 ° C.) for 5 to 30 minutes (more preferably 10 to 20 minutes).

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described specifically with reference to examples.
It is not limited to the description of the following examples. Also,
Percentages are by weight unless otherwise indicated and are effective concentrations.

[0020]

EXAMPLES Examples 1 to 4 and the results are shown in Table 1, and Comparative Example 1
Table 2 shows the results and the results.

[0021]

[Table 1]

[Table 2] The evaluation of the dyeing properties of these semi-permanent hair dye compositions and the feel of the hair after dyeing were in accordance with the following criteria.

Dyeing power 5 g of a semi-permanent hair dye composition is applied to about 10 g of a goat hair bundle,
Put it in a plastic bag instead of the cap, leave it at 50 ° C for 15 minutes, then wash and dry it with shampoo,
The finish was evaluated by five specialized panelists.

：: Good dyeing performance Δ: Slightly poor dyeing performance X: Remarkably poor dyeing performance Feeling of hair at the time of hair dyeing Japanese black hair bundle is treated in the same manner as above to finish the panel 5. Was evaluated by name.

◎: Very smooth and good finger passing ○: Smooth and good finger passing △: Hair does not slip and is slightly rough ×: There is squeaky and quite rough Also, in order to evaluate the storage stability, These semi-permanent hair dye compositions were stored in a 50 ° C. constant temperature bath for one month, and changes in viscosity before and after storage were observed. The viscosity change was measured using a B-type viscometer (25
Using a result measured using a No. 4 rotor, 12 rpm, and 60 seconds), the viscosity change rate was calculated using the following equation.

Change in viscosity = (viscosity before storage−viscosity after storage) / viscosity before storage × 100

By using the composition of the present invention, it is possible to obtain a semi-permanent hair dye having sufficient dyeing properties and a high conditioning effect, and having a stable viscosity at high temperatures (40 ° C. or higher) and for a long period of time. it can.

Claims (4)

[Claims] 1. One or more polymer compounds selected from the group consisting of (a) aromatic alcohols, (b) cationic compounds, (c) water-soluble anionic polymer compounds, and (d) A semi-permanent hair dye composition comprising a direct dye and (e) an acid, having a pH of 1.5 to 4 and a viscosity of 1000 centistokes or more. 2. The semi-permanent hair dye composition according to claim 1, wherein the component (b) is a nitrogen-containing cationic polymer. 3. The semi-permanent hair dye composition according to claim 1, wherein the component (b) is a cationized cellulose derivative. 4. The semi-permanent hair dye composition according to claim 1, wherein the component (c) is an acrylic acid-based polymer and / or a cellulose derivative.