JPH11335239A - Stain remover composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an effective and excellent stain remover composition having sufficient stain removing performance, free from irritation to skin by including a amphoteric polymer compound and/or a cationic polymer compound and benzyl alcohol and/or N-methylpyrrolidone. SOLUTION: This stain remover comprises (A) preferably 0.5-5.0 wt.% amphoteric polymer (e.g. N-methacryloylethyl N,N-dimethylammonium-α-N- methylcarboxybetaine-butyl methacrylate copolymer) and/or a cationic polymer compound (e.g. diethyl sulfate vinylpyrrolidone-N,N- dimethylaminoethylmethacrylic acid copolymer) and (B) preferably 1-7 wt.% benzyl alcohol and/or N-methylpyrrolidone and has pH 3.0-9.0. Citric acid, phosphoric acid, sodium hydroxide, etc., can be used as a pH adjuster.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a stain remover composition, and more particularly to an excellent stain remover composition which has excellent permeability to stains and can sufficiently exhibit a stain removing function when used in a small amount.

[0002]

2. Description of the Related Art Conventionally, semi-permanent hair dyes containing acid dyes and natural dyes have been widely used in the home, barber and beauty industries because they have less damage to hair than other hair dyes. . However, when the hair coloring agent dyes on the skin other than the head hair, a destaining agent for effectively removing the coloring component has not been found yet.

[0003] For example, as a depigmenting agent for skin colored with a hair dye, a composition containing a thioglycolic acid / chelating agent as a reducing substance has been proposed (JP-A-49-8).
No. 1548), which is intended only for dyeing with an oxidation dye, which is a permanent hair dye, and is expected to have an effect on an acid dye, which is a semi-permanent hair dye that currently accounts for about half of the hair dye. It is hard to be done.

In order to do this, a destaining agent for hair using sulfites / benzyl alcohol / cationic surfactant has been proposed (JP-A-4-356413).
This is limited only to the effect on the hair and is not yet satisfactory.

[0005] Further, as a remover for skin staining, a remover based on urea and / or thiourea / sulfites and / or an alkali component has been proposed (JP-A-8-239).
No. 309), irritation to the skin, etc., due to the alkaline region, is still a concern and is not yet satisfactory.

[0006] In order to prevent skin contamination when dyeing with a semi-permanent hair dye (especially a hair dye using an anionic dye), a composition containing a specific ammonium salt has been proposed. Japanese Patent Application Laid-Open No. 58-180421), the inhibitor is used to prevent skin contamination by applying it in advance to the hairline when dyeing with a hair dye, and to remove the hair dye adhering to the skin. The method of use is different from that of the stain remover, and the inhibitor cannot be applied to the stain remover as it is.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention eliminates the drawbacks of the conventional stain removers, has an excellent stain-removing performance, and is an efficient and excellent stain remover composition without irritation to the skin. The purpose is to provide.

[0008]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a specific amount of amphoteric polymer compound and / or cationic polymer compound, benzyl alcohol and / or N -Methylpyrrolidone and a pH of 3.0 to 9.0,
The inventors have found that the above-mentioned problems have been solved, and have completed the present invention.

That is, according to the present invention, the composition contains (A) an amphoteric polymer compound and / or a cationic polymer compound and (B) benzyl alcohol and / or N-methylpyrrolidone, and has a pH of 3.0 to 3.0. A stain remover composition is provided, wherein the composition is 9.0.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described specifically. The amphoteric polymer compound which is the component (A) of the stain remover composition of the present invention means a polymer having an anion and a cation in the molecule. Such amphoteric polymer compounds include N-methacryloylethyl N, N-
Examples include dimethylammonium / α-N-methylcarboxybetaine / butyl methacrylate copolymer, hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer, and the like. Specifically, there are Yukaformer (Diachemco) and Unformer (Kanebo NSC).

Further, the cationic polymer compound which is the component of the stin remover composition (A) of the present invention means a polymer having a cationic region in the molecule. Examples of such a cationic polymer compound include vinylpyrrolidone diethyl sulfate / N, N-dimethylaminoethyl methacrylic acid copolymer, hydroxyethyl cellulose / hydroxypropyltrimethylammonium chloride ether, and the like. Specifically, GAFQUAt (GAF),
Leo guards (lions).

These polymer compounds can be used alone or as a mixture of two or more. The compounding amount of the amphoteric polymer compound and / or the cationic polymer compound as the component (A) is preferably 0.01 to 10.0% by weight in the composition. When the amount of the component (A) is less than 0.01% by weight, the effect of the component (A) to remove dyeing is insufficient, and when the amount is more than 10.0% by weight, skin irritation becomes strong. Pass. 0.5 ~ from the ability to remove dye and stimulate skin
5.0% by weight is particularly preferred.

The compounding amount of benzyl alcohol and / or N-methylpyrrolidone as the component (B) of the stain remover composition of the present invention is preferably 0.1 to 10% by weight, more preferably 1 to 7% by weight. is there. If the amount is less than 0.1% by weight, a sufficient effect for removing stained color cannot be obtained. If the amount exceeds 10% by weight, odor specific to benzyl alcohol and / or N-methylpyrrolidone is generated. Unbearable.

The pH of the stain remover composition of the present invention
Is 3.0 to 9.0, and more preferably 4.0 to 7.0.
0. If the pH is higher than 9.0, irritation to hand skin becomes a problem, which is not preferable. As the pH adjuster, organic acids, inorganic acids, organic alkalis, inorganic alkalis are used,
Examples of organic acids include citric acid, succinic acid, tartaric acid,
Lactic acid, fumaric acid, malic acid, levulinic acid, butyric acid, valeric acid, oxalic acid, maleic acid, fumaric acid, mandelic acid and the like can be mentioned, and examples of inorganic acids include phosphoric acid, sulfuric acid, nitric acid and the like Can be. As the alkali, for example, sodium hydroxide, potassium hydroxide, calcium hydroxide, monoethanolamine, diethanolamine, triethanolamine, aminodihydroxymethylpropanediol, 2-amino-2-methyl-1-
Examples thereof include propanol and 2-amino-2-methyl-1,3-propanediol. Furthermore, it is also preferable to use a basic amino acid such as arginine. Furthermore, these acids and alkalis can coexist to use, for example, the sodium, potassium, ammonium and triethanolamine salts of the above-mentioned acids.

The stain remover composition of the present invention contains various surfactants, oily components, thickeners such as hydroxyethylcellulose and xanthan gum, silicone derivatives, fragrances, preservatives, as long as the effects of the present invention are not impaired.
You may mix an ultraviolet absorber, an antioxidant, a bactericide, etc.

The stain remover composition of the present invention can be produced by mixing the above-mentioned components by a conventional method.
Just wash it away.

[0017]

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

Examples 1 to 4 and Comparative Examples 1 to 3 An acidic hair dye was applied to a human forearm, left for 15 minutes and washed with water. The stain remover composition was impregnated with absorbent cotton and was humidified for 3 minutes. Then, the removal effect of the hair dye and the skin irritation were evaluated according to the following criteria.

<Evaluation Criteria> (1) Removal effect ・ ・ ・: Removed △: Slight coloring remained ×: Almost no removal, coloring remained (2) Skin irritation・ No stimulus △ ・ ・ ・ Slight irritation × ・ ・ ・ Redness etc. occur and strong irritation is felt

[0020]

[Table 1]

From Table 1, it can be seen that the product of the present invention shows a sufficient effect of removing stains and has no skin irritation.

Example 5 A stain remover composition comprising the following components was prepared in Example 1.
Prepared in a similar manner to # 4. Ingredients Amount (%) Cationized cellulose 2 Benzyl alcohol 5 Diammonium dithiodiglycolate 10 Ethanol 10 Urea 1 Hydroxyethyl cellulose 0.5 Citric acid Appropriate amount Purified water balance 25% after applying the above composition to scalp and skin After standing at 5 ° C. for 5 minutes and rinsing, the dyeing removal effect at a glance was exhibited.

Example 6 A stain remover composition comprising the following components was prepared in Example 1.
Prepared in a similar manner to # 4. Ingredients Amount (%) Yuka Former 3 Benzyl alcohol 5 Ethanol 20 Glycolic acid 15 Urea 2.5 Xanthan gum 1.0 Sodium hydroxide Appropriate amount Purified water Balance After applying the above composition to the scalp and skin, 5 minutes at 25 ° C. After standing, it was rinsed off, and as a result, the effect of removing dyeing that was obvious at a glance was exhibited.

[0024]

The stain remover composition of the present invention comprises:
Since the composition contains the above-mentioned components, the composition has sufficient dirt-removing performance even with a hair dye using an acid dye, and has low skin irritation and is excellent.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yuichi Nishida 1-7-7 Honjo, Sumida-ku, Tokyo Inside Lion Corporation

Claims (1)

[Claims] 1. An amphoteric polymer compound and / or a cationic polymer compound and (B) benzyl alcohol and / or
Or containing N-methylpyrrolidone and having a pH of 3.0.
A stain remover composition characterized by being no more than -9.0.