JPH0987139A - Cleansing cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a cleansing cosmetic, good in compatibility with oil foulings, excellent in removing effects on the foulings and good in freshness during the use and refreshing feeling after the use. SOLUTION: This cleansing cosmetic comprises (A) 0.1-3wt.% acrylic acid- alkyl methacrylate copolymer, (B) 0.1-10wt.% one or more selected from anionic, nonionic and amphoteric surfactants and (C) 5-25wt.% water-soluble polyhydric alcohol. The content of an oily ingredient thereof is <=2wt.%.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cleansing cosmetic composition, and more specifically, it is well compatible with oil stains, has an excellent stain removing effect, and has a fresh feeling during use and a refreshing feeling after use. Cleansing cosmetics.

[0002]

2. Description of the Related Art Conventionally, as cleansing cosmetics for removing sebum stains and cosmetics on the skin, oily cleansing cosmetics containing liquid oil as a main component, cream or emulsion type emulsion cleansing cosmetics, aqueous components and Aqueous cleansing cosmetics containing a water-soluble polymer as a main component have been used.

[0003]

However, oil-based cleansing cosmetics and emulsion cleansing cosmetics contain a large amount of oil-based components, so they are well compatible with oil stains and have an excellent stain-removing effect, but after wiping or washing off. The oily component remains on the skin to give a sticky feeling, and there is a drawback that a refreshing feeling of use cannot be obtained.

On the other hand, since the aqueous cleansing cosmetic composition contains almost no oily component, it has a fresh feeling during use and has a refreshing feeling on use, but it has a drawback that it is not well compatible with oil stains and the stain removing effect is not sufficient. there were. Therefore, it has been desired to develop a cleansing cosmetic composition having an excellent stain removing effect and a good feeling of use.

[0005]

In view of the above-mentioned circumstances, the inventors of the present invention have earnestly studied, and as a result, a cleansing cosmetic containing an alkyl acrylate methacrylate copolymer and a specific component can solve the above problems. It came to solve the present invention.

That is, the present invention provides the following components (A) to
(C); (A) Alkyl Methacrylate Methacrylate Copolymer
1 to 3% by weight (B) anionic surfactant, nonionic surfactant,
One or more kinds of surfactants selected from amphoteric surfactants 0.1 to 10% by weight (C) Water-soluble polyhydric alcohol 5 to 25% by weight, and the content of oil component is 2% by weight %, Which is a cleansing cosmetic composition. Less than,
This will be described in detail.

The component (A) alkyl acrylate methacrylate copolymer used in the present invention is a cross-linking type copolymer of acrylic acid and an alkyl (C ₁₀ -C ₃₀ ) acrylate ester. , Pemulen TR-1, Pemulen TR-2, Carbopol 1382 (Goodr
ich) and the like.

The amount of component (A) to be added is 0.1 to 3
% By weight (hereinafter referred to simply as%), preferably 0.2 to
1.5%. If it is less than 0.1%, it is not sufficiently compatible with oil stains and the effect of removing stains is not sufficient, and if it is more than 3%, the viscosity is too high when applied to the skin, the elongation is poor, and a slimy feeling occurs. However, a good usability cannot be obtained.

The component (B) is one or more surfactants selected from anionic surfactants, nonionic surfactants and amphoteric surfactants. As the nonionic surfactant, for example, sorbitan higher fatty acid ester, polyoxyethylene sorbitan higher fatty acid ester, sucrose higher fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, higher fatty acid ethanolamide, polyether modified silicone, alkyl-polyester Examples thereof include ether co-modified silicone. Examples of the anionic surfactant include N-acyl amino acid salt, alkyl ether carboxylate, alkyl sulfate, polyoxyethylene alkyl ether sulfate, higher fatty acid salt and the like. Examples of the amphoteric surfactant include imidazoline type betaine and betaine acetate.

The blending amount of the component (B) is 0.1 to 1
It is 0%, preferably 1 to 5%. If it is less than 0.1%, a good stain removing effect cannot be obtained, and if it exceeds 10%, a surfactant may remain on the skin after use, which may cause skin irritation, which is not preferable.

Among the components (B), the higher fatty acid ethanolamide is particularly preferable. Examples of the higher fatty acid include lauric acid, myristic acid and coconut oil fatty acid, and any of monoethanolamide and diethanolamide can be used. Moreover, the thing to which polyoxyethylene was added may be sufficient.

The component (C) is a water-soluble polyhydric alcohol. Examples of the water-soluble polyhydric alcohol include 1,3-butylene glycol, glycerin, propylene glycol, dipropylene glycol, polyethylene glycol, sorbitol, polyoxyethylene methyl glucoside and the like.

The blending amount of the component (C) is 5 to 25
%, Preferably 5 to 15%. If it is less than 5%, a smooth feeling of use cannot be obtained, and if it exceeds 25%, a sticky feeling is produced, which is not preferable.

In addition to the above essential components, ethanol is added as the component (D) in an amount of 0.1 to 30%, more preferably,
When 3 to 10% is blended, the freshness and refreshing feeling during use become more remarkable.

In the cleansing cosmetic composition of the present invention, in order to exert the effects of the present invention, it is essential that the content of the oily component is 2% or less. The oily component is not particularly limited as long as it is used in ordinary cosmetics, but if it exceeds 2%, the skin feels sticky after use and is not preferable in terms of sensory properties.

In the cleansing cosmetic composition of the present invention, in addition to the above-mentioned essential components, components that are generally incorporated in cosmetic compositions, such as powders, scrubbing agents, moisturizers, water-soluble polymers, cosmetic ingredients, and ultraviolet absorbers , Dyes, colorants, fragrances and the like can be added within a range not impairing the effects of the present invention.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The cleansing cosmetic composition of the present invention comprises:
For example, after the component (A) is homogeneously mixed with purified water and then neutralized by adding an alkali agent such as sodium hydroxide or potassium hydroxide, the components (B) and (C), and if necessary, Then, it can be obtained by adding and mixing the oil component and the component (D). In addition, as a usage method,
It is suitable whether it is wiped off or washed off.

[0018]

EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

Examples 1 to 6 and Comparative Examples 1 to 6 Cleansing cosmetics having the compositions shown in Tables 1 and 2 below were produced and evaluated for cleansing effect and feeling of use.

[0020]

[Table 1]

[0021]

[Table 2]

(Manufacturing Method) A: Components 1 to 6 are uniformly mixed. B: Components 7 to 11 are uniformly mixed, and then added to A and mixed,
I got a cleansing cosmetic.

1. Cleansing Effect A 20-person female evaluation panel picked up the appropriate amount of the cleansing cosmetic composition described above and applied it well to the face coated with the foundation, and then wiped it off with cotton to evaluate the familiarity with dirt and the effect of removing dirt. 2. Evaluation of feeling of use In the same panel, freshness during use and freshness after washing with water were evaluated. The evaluation was carried out according to the following five-stage evaluation, and the average was evaluated.

[Evaluation] 5: Very good. 4: Good. 3: Normal. 2: Somewhat bad. 1: Bad. [Judgment] A: Average score of 4.5 or more. ：: Average score of 3.5 or more and less than 4.5. Δ: Average score of 2.5 or more and less than 3.5. ×: Average point less than 2.5 points. The evaluation results are shown in Table 3.

[0025]

[Table 3]

As is clear from the above results, the examples according to the present invention were excellent cleansing cosmetics satisfying both the cleansing effect and the feeling of use. On the other hand, in the comparative example, none satisfying all the evaluation items was obtained.

Example 7 Cleansing Cosmetic (Component) (%) 1. Acrylic acid alkyl methacrylate copolymer (Note 1) 0.25 2. Sodium hydroxide 1% aqueous solution 7.0 3. Dipropylene glycol 5.0 4. Glycerin 15.0 5. Purified water Remaining amount 6. Sucrose fatty acid ester 0.5 7. Polyoxyethylene coconut oil fatty acid 0.5 monoethanolamide (2EO) 8. Tocopherol acetate 0.1 9. Preservative appropriate amount 10. Appropriate amount of fragrance 11. Ethanol 5.0 (Note 1) Pemulen TR-1 (manufactured by Goodrich)

(Production Method) A: Components 1 to 5 are mixed uniformly. B: Components 6 to 11 were uniformly mixed and dissolved, and the mixture was added to A and mixed to obtain a cleansing cosmetic composition. Example 7 was a cleansing cosmetic composition that was well compatible with stains, had an excellent stain removing effect, and had a good feeling in use.

Example 8 Cleansing cosmetic (with scrubbing agent) (ingredient) (%) 1. Alkyl methacrylic acid acrylate copolymer (Note 2) 0.6 2. Sodium hydroxide 1% aqueous solution 12.0 3. Dipropylene glycol 10.0 4. Purified water remaining 5. Polyether modified silicone 3.0 6. Coconut oil fatty acid diethanolamide 0.5 7. Preservative appropriate amount 8. Appropriate amount of flavor 9. Ethanol 8.0 10. Polyethylene powder 1.0 (Note 2) Pemulen TR-2 (manufactured by Goodrich)

(Production Method) A: Components 1 to 4 are mixed uniformly. B: Components 5 to 9 are dissolved uniformly, added to A, and mixed. Ingredient 10 was added to C: B and mixed uniformly to obtain a cleansing cosmetic composition. Example 8 was a cleansing cosmetic composition having an excellent cleansing effect and a freshness and a refreshing feeling.

[0031]

As described in detail above, the cleansing cosmetic composition of the present invention has good compatibility with oil stains, an excellent stain removing effect, and sensory characteristics such as freshness during use and refreshing feeling after use. Is also good.

Claims (3)

[Claims] 1. The following components (A) to (C); (A) Alkyl methacrylate acrylate copolymer:
1 to 3% by weight (B) anionic surfactant, nonionic surfactant,
One or more kinds of surfactants selected from amphoteric surfactants 0.1 to 10% by weight (C) Water-soluble polyhydric alcohol 5 to 25% by weight, and the content of oily component is 2% by weight Cleansing cosmetics characterized by being less than or equal to%. 2. The cleansing cosmetic composition according to claim 1, wherein the nonionic surfactant is a higher fatty acid ethanolamide. 3. The component according to claim 1 or 2, further comprising:
A cleansing cosmetic comprising 0.1 to 30% by weight of ethanol as the component (D).