JP2005314387A - Foamy oil cleansing cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foamy oil cleansing cosmetic wieldy in use, excellent in usability and having excellent detergency. <P>SOLUTION: This foamy oil cleansing cosmetic comprises a stock solution comprising 70-95 mass% liquid oil, 0.1-25 mass% nonionic surfactant, 0.1-5 mass% polyhydric alcohol ester of a long chain monocarboxylic acid and a long chain dicalboxylic acid and 0.1-10 mass% acryl-silicone graft copolymer, and a propellant. A foamy oil cleansing cosmetic excellent in foam-sustainability, usability and detergency can be obtained. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an oily foam cleansing cosmetic that is easy to take during use due to its excellent foam persistence, has good usability, and has excellent cleanability.

Conventionally, oil-based cleansing cosmetics have been commercialized in liquid, gel, and solid dosage forms. However, as makeup sustainability of makeup cosmetics has improved in recent years, oil-based cleansing cosmetics have excellent detergency. Many cleansing fees have been developed. In order to cleanly remove the cosmetic film having a good makeup persistence, it is most preferable to make the cleansing foam into a foam, and for that purpose, it is suitable to form an aerosol. Was highly compatible and it was difficult to obtain a stable foam. Studies for obtaining such foam cleansing materials have been conducted in the past, and techniques using organic silicone resins (for example, Patent Document 1), techniques using dextrin fatty acid esters as foaming aids (for example, Patent document 2) etc. are mentioned.

Japanese Patent No. 2800024 Japanese Patent No. 2937739

However, with technology using organosilicone resin, foamability at low temperatures and stability of foam are insufficient, and after taking it in the hand, the foam collapses until it is applied, and it becomes liquid and dripping. There was a drawback. In addition, even in the technology using dextrin fatty acid ester, the persistence of the foam is insufficient and the viscosity does not become so low that it is struck from the hand. Could not cleanse.

Therefore, as a result of diligent research to solve the above problems, the present inventor, as a basic skeleton of oil-based cleansing, in a composition containing liquid oil and a nonionic surfactant, It was found that an oily foam cleansing material having excellent foam sustainability, usability and cleanability can be obtained by an aerosol composed of a stock solution containing an organosilicone compound and a propellant, thereby completing the present invention. It was.
That is, the present invention is a liquid oil of 70 to 95% by mass, a nonionic surfactant of 0.1 to 25% by mass, a long-chain monocarboxylic acid and a long-chain dicarboxylic acid polyhydric alcohol ester of 0.1 to 5% by mass.
The present invention relates to an oily foam cleansing cosmetic comprising a stock solution containing 0.1 to 10% by mass of an acrylic-silicone graft copolymer and a propellant.

The oily foam cleansing cosmetic of the present invention is excellent in foam persistence, usability and cleanability.

Hereinafter, the present invention will be described in detail.
The component (A) used in the present invention is an oil that is liquid at 25 ° C., and may be any agent that is usually used in cosmetics, for example, hydrocarbon oils such as liquid paraffin and squalane;
Ester oils such as glyceryl fatty acid esters such as glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / caprylate), propylene glycol dicaprate, glyceryl tricaprate, and glyceryl tricaprate; wheat germ oil, rice germ oil, rice bran oil ,
Vegetable oils such as Medfoam oil, rosemary oil, olive oil, jojoba oil, macadamia nut oil, safflower oil; silicone oils such as dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylsiloxane; fluorine-based compounds such as perfluoropolyether An oil agent etc. are mentioned.
The compounding amount of the component (A) in the oily foam cleansing cosmetic of the present invention is 70% in the stock solution.
It is -95 mass% (Hereinafter, it only shows by "%"), and can be used combining 1 type (s) or 2 or more types. If it is less than 70%, a sufficient cleaning effect cannot be obtained, and if it exceeds 95%, the formation of bubbles is insufficient, which is not preferable.

The component (B) used in the present invention may be any component that is usually used in cosmetics. For example, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbite fatty acid ester, polyoxyethylene glycol fatty acid ester ,
Examples thereof include polyoxyethylene alkyl ether, polyoxyethylene hydrogenated castor oil derivative, sucrose fatty acid ester, polyoxyethylene fatty acid ethanolamide, polyoxyalkylene-modified silicone, and polyoxyalkylene alkyl co-modified silicone. Among these, considering the ease of washing, those having an HLB of 10 to 14 are preferable.
The amount of component (B) in the oily foam cleansing cosmetic of the present invention is 0.1 to 25% in the stock solution, and these can be used alone or in combination of two or more. If it is less than 0.1%, the cleaning effect is insufficient, and if it exceeds 25%, the skin irritation becomes too strong.

Ingredient (C) used in the present invention forms and maintains an appropriate viscosity, and as a result, it facilitates foam formation during use and gives a smooth and smooth feel when applied to the skin. Is contained for the purpose. Specific examples include (behenic acid / eicosanedioic acid) glyceryl, (behenic acid / eicosanedioic acid) polyglyceryl, etc.
Behenic acid / eicosanedioic acid) glyceryl is preferred. As a commercial product, Nomucoat HK-
G (Nisshin Oilio Co., Ltd.)
These can be blended in an amount of 0.1 to 5% in the stock solution of the oily foam cleansing cosmetic of the present invention, and can be used alone or in combination of two or more. If it is less than 0.1%, the viscosity cannot be sufficiently provided, and if it exceeds 5%, a feeling of remaining on the skin after washing is undesirably felt.

Component (D) used in the present invention is an acryl obtained by copolymerizing an organopolysiloxane compound having a radical polymerizable group in the molecule and one or more of the other radical polymerizable monomers. -It is a silicone-based graft copolymer, and has the effect of supplementing the retention of foam when discharged as an aerosol, and is blended for the purpose of smoothing the feel after washing.
Specifically, those described in JP-A-2-25411, JP-A-2-132141, etc., and acrylics described in JP-A-3-162442, JP-A-2003-104825, etc. Silicone graft copolymers can be used, and commercially available products include KP-541 (isopropanol solution), KP-543 (butyl acetate solution), K
P-545 (decamethylcyclopentasiloxane solution), KP-548 (decamethylcyclopentasiloxane solution), KP-561, KP-562, KP-571 (all manufactured by Shin-Etsu Chemical Co., Ltd.) and the like.
The amount of component (D) in the oily foam cleansing cosmetic of the present invention is 0.
If it is less than 0.1%, the foam persistence, fineness and smoothness after washing are insufficient, and if it exceeds 10%, the skin after washing becomes sticky, which is not preferable in terms of touch. Moreover, these can be used 1 type or in combination of 2 or more types.

The propellant used in the present invention is not particularly limited as long as it is a propellant usually used in cosmetics. For example, propane, isobutane, normal butane and a mixture thereof (hereinafter abbreviated as LPG),
Dimethyl ether (hereinafter abbreviated as DME), carbon dioxide gas, nitrogen gas, etc.
These can be used alone or in admixture of two or more.
The oily foam cleansing cosmetic of the present invention comprises a stock solution containing the components (A) to (D) and a propellant, and the mixing ratio is not particularly limited, but the blending ratio of the stock solution / propellant is 50 / 5
0-99 / 1 is preferable. If it is this range, there will be no problems, such as a bubble scattering at the time of injection, and foam formation failure, and what will fully satisfy usability is obtained.

In the oily foam cleansing cosmetic of the present invention, in addition to the above-described components, an oily component other than the liquid usually used in cosmetics and an ionic interface depending on the purpose within a range not impairing the effects of the present invention Components such as an activator, powder, water-soluble component, ultraviolet absorber, humectant, antioxidant, cosmetic component, preservative, and fragrance can be blended in the stock solution.

The following examples further illustrate the present invention. Note that these do not limit the present invention.

Invention products 1-6 and comparative products 1-6 Oil cleansing foams Oil cleansing foams having the composition shown in Table 1 were prepared according to the following production method, and a. Fineness of foam, b. Foam persistence, c. Ease of application, d. Detergency, e. Sensory evaluation was performed by the following method about the smoothness of the skin after washing. The results are also shown in Table 1.

(Production method)
A. Components (1) to (10) are uniformly mixed and dissolved at 60 ° C., and then cooled to obtain an aerosol stock solution.
B. A85 parts and 15 parts of LPG (0.44 MPa) as a propellant are filled into an aerosol foam can to obtain a finished product.

(Evaluation methods)
Using 10 sensory test panels, each sample was evaluated on the following evaluation items a to e using (1) absolute evaluation criteria in 7 grades, and the average score for each sample was (2) 4 grade judgment criteria Was used to determine. However, for cleanability, the lipstick of the following prescription was applied to the inner arm, each sample was applied to the cosmetic film after 1 hour, and the goodness of dirt removal was evaluated after washing with hot water at 40 ° C. .
(Evaluation item)
a. Fineness of foam b. Foam persistence c. Ease of application d. Detergency e. Smooth skin after washing

Lipstick for cleaning evaluation (component) (%)
1. Secin wax 6
2. Ethylene / propylene copolymer Note 1 2
3. 3. Glyceryl tri-2-ethylhexanoate Polyisobutylene 10
5). Liquid paraffin 15
6). Inulin stearate Note 2 10
7). Trimethylsiloxysilicate solution 10
8). Cyclopentasiloxane Note 4 10
9. Fluorine compound-treated mica titanium Note 5 5
10. Red No. 202 0.5
11. Yellow No. 4 1.5
12 Titanium oxide 2
13. Black iron oxide 0.2
14 Vitamin E 0.5
15. Perfume appropriate amount Note 1: Petrolite EP-700 (manufactured by Baker Petrolite)
Note 2: Leopard ISK (Chiba Flour Mills)
Note 3: Silicon KF-7312J (manufactured by Shin-Etsu Chemical Co., Ltd.)
Note 4: Silicon KF-995 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Note 5: 5% perfluoroalkyl phosphate diethanolamine treatment

(1) Absolute evaluation criteria (Score): (Evaluation)
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad 1: Bad 0: Very bad (2) Four-level evaluation criteria (Average score): (Judgment)
More than 5 points: Very good: ◎
3 points to 5 points or less: Good: ○
Over 2 points and under 3 points: Somewhat bad: △
2 points or less: Defect: ×

As is clear from the results of Table 1, the oil cleansing foams of the present invention products 1 to 6 are compared with the comparative products 1 to 6, the fineness of the foam, the persistence of the foam, the ease of application, the washability, It can be seen that it has much better properties in all aspects of skin smoothness after washing.

Point makeup remover (ingredient) (%)
(1) Liquid paraffin 40
(2) Light liquid isoparaffin Residual amount (3) Cetyl 2-ethylhexanoate 10
(4) Acrylic-silicone graft copolymer * 2 4
(5) polyisoethylene glyceryl triisostearate 5
(6) Decamethylcyclopentasiloxane 5
(7) Perfluoropolyether 2
(8) (Behenic acid / eicosanedioic acid) Glyceryl 1
(9) Hydrophobized silicic anhydride 0.2
(10) Dipropylene glycol 2
(11) Glycerin 5
(12) Ethanol 5
* 2 KP561 (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Production method)
A. Components (1) to (9) are uniformly mixed at 60 ° C. and cooled, and then components (10) to (12) are added and mixed to obtain a stock solution.
B. An aerosol can is filled with 70 parts of stock solution A and 30 parts of DME propellant to obtain a finished product.
The point makeup remover of Example 2 obtained as described above has excellent properties such as fineness of foam, persistence of foam, ease of application, cleanability, and smoothness of the skin after washing. Had.

Cleansing fee (powder in)
(Ingredient) (%)
(1) Liquid paraffin 40
(2) Glyceryl tri-2-ethylhexanoate Residual amount (3) Cetyl 2-ethylhexanoate 10
(4) Acrylic-silicone graft copolymer * 3 2
(5) Polyoxyethylene glyceryl triisostearate 10
(6) Beeswax 3
(7) Tocopherol acetate 0.1
(8) (Behenic acid / eicosanedioic acid) Glyceryl 1
(9) Decamethylcyclopentasiloxane 5
(10) Polytetrafluoroethylene powder 2
(11) Purified water 1
(12) Acyl taurine sodium salt 0.1
(13) Ethanol 1
* 3 KP562 (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Production method)
A. Components (1) to (9) are uniformly mixed at 60 ° C. and cooled, and then components (10) to (13) are added and mixed to obtain a stock solution.
B. An aerosol can is filled with 70 parts of stock solution A and 25 parts of LPG (0.44 MPa) as a propellant to obtain a finished product.
The cleansing material of Example 3 obtained as described above has excellent characteristics such as fineness of foam, persistence of foam, ease of application, cleanability, and smoothness of the skin after washing. It was.

Cleansing fee (wipe off type)
(Ingredient) (%)
(1) Decamethylcyclopentasiloxane 40
(2) Glyceryl tri-2-ethylhexanoate Residual amount (3) Acrylic-silicone graft copolymer * 1 2
(4) Acrylic-silicone graft copolymer * 3 1
(5) polyisoethylene glyceryl triisostearate 3
(6) Light liquid isoparaffin 3
(7) Polyoxyalkylene alkyl co-modified silicone 0.1
(8) (Behenic acid / eicosanedioic acid) glyceryl 0.5
(9) Urethane powder 2

(Production method)
A. Components (1) to (8) are uniformly mixed at 60 ° C. and cooled, and then component (9) is added and mixed to obtain a stock solution.
B. An aerosol can is filled with 65 parts of stock solution A and 35 parts of LPG (0.44 MPa) of propellant to obtain a finished product.
The cleansing material of Example 4 obtained as described above has excellent properties such as fineness of foam, persistence of foam, ease of application, cleanability, and smoothness of the skin after washing. It was.

Claims (1)

The following components (A) to (D):
(A) Liquid oil 70-95 mass%
(B) Nonionic surfactant 0.1-25 mass%
(C) Polyhydric alcohol ester of long-chain monocarboxylic acid and long-chain dicarboxylic acid 0.1 to 5
mass%
(D) Acrylic-silicone graft copolymer 0.1 to 10% by mass
An oily foam cleansing cosmetic comprising a stock solution containing a propellant.