JP4251951B2 - Acid hair dye composition - Google Patents

Description

  The present invention relates to an acidic hair dye composition, and more specifically, it has good elongation when applied to hair, does not sag, is excellent in stability at low and high temperatures of the preparation, and is stable in dye. It is related with the acidic hair dye composition which is also excellent.

  In general, an acidic hair dye contains a dye, an organic solvent, and an acid as main components, and the pH of the system is adjusted to about 1.5 to 4.5 in order to improve dyeing ability. And in order to prevent dripping from the hair at the time of use, a thickener is mix | blended, However, The thickener which can be used is limited in the above low pH area | regions. As a technique for thickening an acidic hair dye in such a low pH region, a technique using xanthan gum as a thickener (for example, see Patent Document 1) or a technique using a carboxyvinyl polymer (for example, Patent Document) 2).

However, when the system is thickened with xanthan gum, the fluidity is poor and there is a problem with the elongation on the hair. In order to solve this problem, an acidic hair dye containing a specific amount of xanthan gum and a specific amount of bentonite and / or crosslinkable sodium polyacrylate has been proposed (see Patent Document 3). In addition, it was not satisfactory, and had a problem in terms of storage stability of the preparation.
Moreover, when the system was thickened with carboxyvinyl polymer, although it was excellent in fluidity compared to xanthan gum, it had a problem in the storage stability of the preparation.

  On the other hand, as a technique related to the storage stability of the preparation, a hair dye composition containing a carboxyvinyl polymer and a polyacrylic acid amide (see Patent Document 4), a carboxyvinyl polymer and / or an acrylic acid / alkyl methacrylate copolymer. A hair dye composition containing a polyacrylic acid amide copolymer has been reported (see Patent Document 5). In particular, Example 5 of Patent Document 4 and Example 5 of Patent Document 5 describe examples containing a carboxyvinyl polymer and xanthan gum. However, even if the storage stability at high temperature can be improved by these techniques, there is still a problem regarding the storage stability at low temperature.

  In addition, there is a problem with respect to the stability of the blended dye in the preparation. That is, the acid hair dye is usually adjusted to an acidity of about 1.5 to 4.5 using an acid such as citric acid. It reacts with blending components such as fragrances, and the initial color tone of the blended dye changes, and there is a problem that hair may not be dyed to the planned color tone.

Japanese Patent Publication No.2-32253 Japanese Patent Laid-Open No. 7-101841 JP-A-5-51309 Japanese Patent Laid-Open No. 11-130639 JP 2000-309514 A

  The present invention has been made in view of the above prior art, and has good elongation when applied to hair, no dripping, excellent stability at low and high temperatures of the preparation, and stability of the dye. An object of the present invention is to provide an acidic hair dye composition that is also excellent in properties.

That is, the present invention
(1) An acidic hair dye composition comprising dye, carboxyvinyl polymer 1 to 10% by weight, xanthan gum 0.02 to 0.2% by weight , glycolic acid and a surfactant , and (2) Furthermore, it is related with the acidic hair dye composition as described in said (1) containing 1 or more types chosen from the group which consists of N-alkyl pyrrolidone, an aromatic alcohol, and an aliphatic lower alcohol.

The present invention contains an acid hair dye composition containing a dye, 1 to 10% by weight of carboxyvinyl polymer and 0.02 to 0.2% by weight of xanthan gum as a thickener, and glycolic acid and a surfactant as an acid. To provide an acidic hair dye composition that has good elongation at the time of application to hair, does not sag, is excellent in stability at low and high temperatures of the preparation, and is excellent in dye stability. be able to.

  Hereinafter, the acidic hair dye composition according to the present invention will be described in detail. The acidic hair dye composition according to the present invention contains a dye, a carboxyvinyl polymer, xanthan gum and glycolic acid as essential components.

  Although it will not specifically limit as a dye which can be used for this invention if the effect of this invention is exhibited, It is preferable to use an acidic dye. The acid dye used is not particularly limited as long as it is used for hair dyes. For example, Red No. 2, Red No. 3, Red No. 102, Red No. 104, Red No. 105, Red No. 106, Yellow No. 4 Yellow No. 5, Green No. 3, Blue No. 1, Red No. 201, Red No. 227, Red No. 220, Red No. 230, Red No. 231, Red No. 232, Orange No. 205, Orange No. 207, Yellow No. 202, Yellow 203, green 201, green 204, green 205, blue 202, blue 203, blue 205, brown 201, red 401, red 502, red 503, red 504, red 506 Orange 402, yellow 402, yellow 403, yellow 406, yellow 407, green 401, green 402, purple 401, black 401 and the like. These dyes may be used alone or in combination of two or more.

  Although the compounding quantity of dye will not be specifically limited if the effect of this invention is exhibited, Preferably it is 0.001-2 weight% in a composition, More preferably, it is 0.05-1 weight%. If the blending amount is less than 0.001% by weight, the hair cannot be dyed sufficiently. If the blending amount exceeds 2% by weight, no further hair dyeing effect can be expected and leveling is possible. May be inferior.

  In the present invention, carboxyvinyl polymer and xanthan gum are blended together as a thickener to thicken the system. This is because by using both thickeners together, the storage stability of the preparation is excellent over a wide temperature range from low temperature to high temperature. Commercially available products of the carboxyvinyl polymer used in the present invention include trade names Hibiswako 104 and 105 (all manufactured by Wako Pure Chemical Industries), trade names Carbopol 934, 940, 941, 980 and 981 (all Goodrich) As a commercial product of xanthan gum, the trade name Celtrol T (manufactured by Dainippon Pharmaceutical Co., Ltd.) and the like can be mentioned.

Although the compounding quantity of a carboxy vinyl polymer will not be specifically limited if the effect of this invention is exhibited, Preferably it is 1-10 weight% in a composition, More preferably, what is necessary is just to be 1.5-3 weight%. When the blending amount is less than 1% by weight, dripping occurs during the treatment, and when the blending amount exceeds 10% by weight, the viscosity becomes too high to be difficult to perform the treatment.
Further, the amount of xanthan gum is not particularly limited as long as the effect of the present invention is exerted, but preferably 0.005 to 0.4% by weight, more preferably 0.02 to 0.2% by weight in the composition. It is. When the blending amount is less than 0.005% by weight, the stability of the preparation at low temperature is poor, and when the blending amount exceeds 0.4% by weight, the viscosity increases at high temperature. In some cases, it is not preferable.

In the present invention, glycolic acid is used as the acid. By using glycolic acid together with the thickener, it is possible to exert an excellent effect on the storage stability of the dye in addition to the storage stability of the preparation at low and high temperatures. In particular, when dyes such as black 401, red 227, and yellow 403 are combined with a fragrance, the stability of these dyes is excellent.
The blending amount of glycolic acid may be adjusted so that the pH of the system is about 1.5 to 4.5 from the viewpoint of improving the dyeing ability, specifically 0.2 to 10% by weight, preferably 1 to 5% by weight may be blended.

  Moreover, the acidic hair dye composition according to the present invention can contain an organic solvent from the viewpoint of improving the permeability of the dye into the hair. Examples of the organic solvent used include N-alkylpyrrolidone, aromatic alcohol, and aliphatic lower alcohol. Specifically, N-alkylpyrrolidones such as 1-methyl-2-pyrrolidone and 1-ethyl-2-pyrrolidone; aromatic alcohols such as benzyl alcohol and 2-benzyloxyethanol; aliphatics such as ethyl alcohol and butyl alcohol A lower alcohol can be exemplified. These organic solvents may be used alone or in combination of two or more.

  Although the compounding quantity of an organic solvent is not specifically limited, It is preferable to set it as 5 to 60 weight% in a composition, and it is more preferable to set it as 15 to 45 weight%. When the blending amount is less than 5% by weight, it does not contribute to improvement of dyeability, and when the blending amount exceeds 60% by weight, the stability of the preparation is lowered.

  In addition, in the acidic hair dye composition of the present invention, as long as the effects of the present invention are not impaired, silicones, hydrocarbons, oils and fats, waxes, esters, surfactants, in addition to the above-described components Agents, polyhydric alcohols, chelating agents, antioxidants, animal and plant extracts, preservatives, ultraviolet absorbers, fragrances, purified water, and the like can be appropriately blended depending on the purpose.

EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited at all by these Examples. In addition, a compounding quantity is weight%.
(Sample preparation)
According to the composition that describes in Table 1-2, the gelled acidic hair dye of Example 1-9 and Comparative Example 1-8 were prepared by a conventional method and subjected to the following evaluation tests.

(Test Example 1: Evaluation of elongation)
Elongation was evaluated by applying 0.5 g of each sample on a glass plate and oscillating vigorously to observe the change in fluidity of the sample. Evaluation was performed according to the following evaluation criteria, and the results are shown in Tables 1 and 2.
<Evaluation criteria>
◎: Very good stretch ○: Good stretch △: Slightly poor stretch ×: Bad stretch

(Test Example 2: Evaluation of dripping)
0.5 g of each sample was applied on a glass plate, the glass plate was fixed perpendicular to the ground for 1 minute, and the degree of dripping was evaluated according to the following evaluation criteria. The results are shown in Tables 1-2.
<Evaluation criteria>
◎: Does not sag ○: Slightly △: Sags x: Sags violently

(Test Example 3; Evaluation of formulation stability)
Each sample was filled in a transparent jar and stored at temperatures of -18 ° C, 25 ° C and 50 ° C. The storage period was 2 days for -18 ° C and 8 weeks for 25 ° C and 50 ° C. About each sample after a preservation | save, appearance changes, such as isolation | separation of a formulation and rough cloth, were evaluated visually according to the following evaluation criteria. The results are shown in Tables 1-2.
<Evaluation criteria>
◎: No change in appearance ○: Little change in appearance △: Some change in appearance ×: Clear change in appearance

(Test Example 4; Evaluation of dye stability)
Each sample was filled into a transparent jar and stored at a temperature of 50 ° C. for 4 weeks. About each sample after a preservation | save, the change of the color tone was evaluated in comparison with the color tone of the preservation | save initial stage. Evaluation was performed according to the following evaluation criteria, and the results are shown in Tables 1 and 2.
<Evaluation criteria>
◎: No change in color tone ○: Little change in color tone △: Some change in color tone ×: Clear change in color tone

  From the results of Table 1 and Table 2, the acidic hair dye composition according to the present invention has good elongation at the time of application to hair, no dripping, and excellent stability at low and high temperatures of the preparation, Moreover, it can be seen that the dye stability is also excellent.

Hereinafter, the formulation example of the acidic hair dye composition which concerns on this invention is shown. POE is an abbreviation for polyoxyethylene.
(Prescription Example 1)
Xanthan gum 0.1
Carboxyvinyl polymer 2.0
Benzyl alcohol 12.0
Ethanol 15.0
N-methylpyrrolidone 6.0
POE (20) octyldodecyl ether 0.2
Glycolic acid 3.0
Orange 205 No.0.2
Red No. 102 0.02
Yellow No. 0.05
Black 401 0.02
Purple 401 No. 0.05
Fragrance 0.1
Purified water residue
Total 100.0% by weight

(Prescription example 2)
Xanthan gum 0.02
Carboxyvinyl polymer 2.5
Benzyl alcohol 10.0
Ethanol 20.0
POE (20) octyldodecyl ether 0.2
Glycolic acid 3.0
Orange 205 No.0.1
Red No. 227 0.02
Yellow No. 406 0.03
Black 401 0.02
Fragrance 0.1
Purified water residue
Total 100.0% by weight

Since the acidic hair dye composition of the present invention contains a dye, a carboxyvinyl polymer, xanthan gum and glycolic acid, it has good elongation when applied to hair, does not sag, and has a wide range of temperatures from low to high. Excellent storage stability of the preparation in the range, and also excellent dye stability. Therefore, the acidic hair dye composition of the present invention can be used for hair dye products and can be suitably used for hair dyeing.

Claims (2)

An acidic hair dye composition comprising a dye, carboxyvinyl polymer 1 to 10% by weight, xanthan gum 0.02 to 0.2% by weight , glycolic acid and a surfactant .   Furthermore, 1 or more types chosen from the group which consists of N-alkyl pyrrolidone, an aromatic alcohol, and an aliphatic lower alcohol are contained, The acidic hair dye composition of Claim 1 characterized by the above-mentioned.