JP2005104854A - Waer-in-oil type emulsified cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare a water-in-oil type emulsified cosmetic having excellent moisture retention and preservation stability. <P>SOLUTION: This water-in-oil type emulsified cosmetic comprises a nonionic surfactant, a volatile silicone, purified water and di(phytosteryl, isostearyl, cetyl, stearyl and behenyl) dimer dilinoleate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a water-in-oil emulsified cosmetic, and more particularly to a water-in-oil emulsified cosmetic having excellent moisture retention and storage stability.

BACKGROUND ART Water-in-oil emulsified cosmetics containing volatile silicone as an oil phase component are used in foundations and sunscreens due to advantages such as good makeup and lightness (for example, see Patent Document 1). However, since there are many volatile components, it tends to be a dry cosmetic finish, and satisfactory results are not obtained in terms of storage stability.

Japanese Patent No. 2788073

  Accordingly, an object of the present invention is to provide a water-in-oil emulsified cosmetic that is excellent in moisture retention and storage stability.

  The above object is achieved by a water-in-oil emulsified cosmetic containing a nonionic surfactant, volatile silicone, purified water, and dimer dilinoleate (phytosteryl, isostearyl, cetyl, stearyl, behenyl). .

  The water-in-oil emulsified cosmetic of the present invention is particularly excellent in moisture retention and storage stability, but also has advantages such as makeup retention, lightness of spread, gloss, and safety.

  The nonionic surfactant used for this invention functions as an emulsifier and a dispersing agent, and can be used 1 type or in combination of 2 or more types. Particularly preferred are fatty acid polyhydric alcohol esters and polyether-modified silicones. As the fatty acid polyhydric alcohol ester, sorbitan monoisostearate and diglyceryl monoisostearate are particularly preferable. As the polyether-modified silicone, BY22-008M (containing 10% polyether-modified silicone, manufactured by Toray Dow Corning Silicone), KSG-21 (containing 27% polyether-modified silicone, manufactured by Shin-Etsu Chemical Co., Ltd.) ), KF-6028 (manufactured by Shin-Etsu Chemical Co., Ltd.) is most suitable. The blending amount is preferably 0.3 to 3.0% by mass, and particularly preferably 0.5 to 2.0% by mass.

  The volatile silicone used in the present invention can be used regardless of the structure such as cyclic, linear or branched, and one or two or more can be used. The blending amount is preferably 5.0 to 50.0% by mass, and particularly preferably 7.0 to 40.0% by mass.

  The amount of purified water used in the present invention is preferably 15.0 to 85.0 mass%.

Dimer linoleic acid di (phytosteryl, isostearyl, cetyl, stearyl, behenyl) (hereinafter abbreviated as DDE) used in the present invention includes, for example, hydrogenated dimer acid, phytosterol, isostearyl alcohol, cetyl alcohol, stearyl alcohol. And behenyl alcohol can be obtained by esterification reaction without catalyst. Examples of commercially available products include Plandour (Nippon Seika Co., Ltd .; Plandool-S, Plandool-H). The blending amount is preferably 0.1 to 10.0% by mass, and particularly preferably 0.5 to 7.0% by mass.

  In addition to the above essential components, the water-in-oil emulsified cosmetic of the present invention contains an oil component, a moisturizer, an emulsifier, a fragrance, a UV absorber, an antiseptic, a plant extract, a pigment and the like as necessary. I can do it.

  EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is further explained in full detail, this invention is not limited by this.

Example 1 (skin care cream)
(mass%)
1. Sorbitan monoisostearate 0.5
2. Volatile silicone * 1 20.0
3. DDE * 2 1.0
4). Liquid paraffin 5.0
5). Dipropylene glycol 2.0
6). Sorbitol 3.0
7). Paraben 0.2
8). Purified water 68.3
* 1; TSF405 (GE Toshiba Silicone)
* 2: Plandool-H (Nippon Seika Co., Ltd.)

Production method Ingredients 1 to 4 were dissolved by heating, and components 5 to 8 were dissolved by heating. After dispersion, components 1 to 4 were cooled to room temperature.

Comparative Example 1
A skin care cream was prepared in the same manner as in Example 1 except that the adsorption purified lanolin was used in place of the DDE in Example 1.

Example 2 (make-up base)
(mass%)
1. Polyether-modified silicone mixture * 3 5.0
2. Volatile silicone * 4 7.0
3. DDE * 5 0.5
4). Dipropylene glycol 5.0
5). Sodium citrate 0.3
6). Purified water 72.2
7). Ethanol 10.0
* 3; KSG-21 (contains 27% polyether-modified silicone, manufactured by Shin-Etsu Chemical Co., Ltd.)
* 4: SH245 (manufactured by Toray Dow Corning Silicone)
* 5; Plandool-S (Nippon Seika Co., Ltd.)

Production Method Ingredients 1 to 4 were dissolved by heating, and components 5 and 6 were dissolved by heating, and the mixture was dispersed and cooled to room temperature.

Comparative Example 2
A makeup base was prepared in the same manner as in Example 2 except that petrolatum was used instead of DDE in Example 2.

Example 3 (Foundation)
(mass%)
1. Diglyceryl monoisostearate 1.0
2. Polyether-modified silicone mixture * 6 5.0
3. Volatile silicone * 7 25.0
4). DDE * 8 4.0
5). Propylene glycol dicaprylate 2.0
6). Squalane 1.0
7). Glycerin 5.0
8). Paraben 0.2
9. Purified water 42.8
10. Titanium oxide 10.0
11. Bengala 0.2
12 Yellow iron oxide 0.8
13. Black iron oxide 0.1
14 Talc 0.9
15. Cross-linked silicone powder * 9 2.0
* 6; BY22-008M
(Contains 10% polyether-modified silicone,
(Toray Dow Corning Silicone)
* 7; TSF-1.5 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 8; Plandool-H (Nippon Seika Co., Ltd.)
* 9: Trefill E-508 (Toray Dow Corning Silicone)

Production Method Components 10 to 15 were mixed and pulverized, and components 1 to 6 were added to and dissolved in the heated solution. Ingredients 7 to 9 were added to this while dissolved by heating, dispersed, and cooled to room temperature.

Comparative Example 3
A foundation was prepared in the same manner as in Example 3 except that cholesteryl isostearate was used in place of DDE in Example 3.

Example 4 (solid wrinkle concealment)
(mass%)
1. Sorbitan monoisostearate 2.0
2. Volatile silicone * 10 40.0
3. DDE * 11 7.0
4). Dimethylpolysiloxane 7.0
5). Paraffin 5.0
6). Ceresin 2.0
7). Polymethylsilsesquioxane * 12 5.0
8). Cross-linked silicone powder * 13 5.0
9. Polyalkyl acrylate * 14 5.0
10. Glycerin 3.0
11. Maltitol 3.0
12 Paraben 0.2
13. Purified water 15.8
* 10; DC246 (Toray Dow Corning Silicone)
* 11; Plandool-S (Nippon Seika Co., Ltd.)
* 12: Tospearl 145 (GE Toshiba Silicone)
* 13: Trefill E-506C (Toray Dow Corning Silicone)
* 14: Microsphere S-102 (Matsumoto Yushi Seiyaku Co., Ltd.)

Production Method Components 1 to 6 were dissolved by heating, and components 7 to 9 were added and dispersed. To this was added a component in which components 10 to 13 were heated and dissolved, dispersed, filled into a container, and cooled to room temperature.

Comparative Example 4
A solid wrinkle concealment was prepared in the same manner as in Example 4 except that adsorption-purified lanolin was used instead of DDE in Example 4.

  Each test method of (1) moisturizing test and (2) storage stability test used in the present invention is as follows.

(1) Moisturizing test (stratification of stratum corneum moisture content)
In 20 upper arms, the amount of horny water before and 15 minutes after application of the sample was measured using Skicon-200 (IBS) based on the method of Tagami et al. Evaluation was performed.

(2) Storage stability test The foundation was stored in a thermostatic bath at 0 ° C, 25 ° C and 45 ° C for 3 months, and it was examined whether or not separation of the water phase component and the oil phase component occurred.
No separation when stored at any temperature: ◎
Not separated when stored at 25 ° C or lower, separated when stored at 45 ° C: ○
Separate even when stored at 25 ° C or lower: ×

The result of having performed the said test to each sample of Examples 1-4 and Comparative Examples 1-4 is shown below.
Examples Comparative examples
1 2 3 4 1 2 3 4
----------------------------------
Moisturizing test 18 17 18 19 4 1 2 4
Storage stability test ◎ ◎ ◎ ◎ × × × ○

  The samples of Examples 1 to 4 of the present invention were excellent in both moisture retention and storage stability, while Comparative Examples 1 to 4 were inferior.

Example 5 (massage cream)
A massage cream was prepared by a conventional method with the following formulation.
Oil phase component (mass%)
Sorbitan monoisostearate 3.0
Volatile silicone * 15 5.0
DDE * 16 10.0
Microcrystalline wax 10.0
Paraffin 3.0
Vaseline 5.0
Squalane 43.0
Water phase component Dipropylene glycol 5.0
Paraben 0.1
Purified water 17.9
* 15; DC246 (Toray Dow Corning Silicone)
* 16: Plandool-H (Nippon Seika Co., Ltd.)

Example 6 (mascara)
Mascara was prepared by a conventional method with the following formulation.
Oil phase component (mass%)
Sorbitan monoisostearate 3.0
Volatile silicone * 17 20.0
DDE * 18 3.0
Light isoparaffin 10.0
Paraffin 5.0
Water phase component Paraben 0.3
Purified water 33.7
Pigment Black iron oxide 10.0
Resin Alkyl acrylate copolymer 15.0
* 17; TSF405 (GE Toshiba Silicone)
* 18; Plandool-S (Nippon Seika Co., Ltd.)

Example 7 (Sunscreen)
A sunscreen was prepared by a conventional method with the following formulation.
Oil phase component (mass%)
Sorbitan monoisostearate 1.0
Polyether-modified silicone mixture * 19 5.0
Volatile silicone * 20 20.0
DDE * 21 0.2
Octyl paramethoxycinnamate 5.0
Squalane 3.0
Water phase component Purified water 47.8
Ethanol 10.0
Pigment Fine particle titanium dioxide 5.0
Resin Trimethylsiloxysilicate 3.0
* 19; BY22-008M
(Contains 10% polyether-modified silicone
; Toray Dow Corning Silicone)
* 20: TSF-1.5 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 21; Plandool-S (Nippon Seika Co., Ltd.)

The water-in-oil emulsified cosmetic of the present invention is particularly excellent in moisture retention and storage stability, and also has advantages such as makeup retention, lightness of spread, gloss, and safety. Therefore, it can be applied in the field of pharmaceuticals, quasi-drugs and cosmetics used for skin conditioning and beauty, and is extremely useful in industry.

Claims (1)

A water-in-oil emulsified cosmetic containing a nonionic surfactant, volatile silicone, purified water and dimer dilinoleate (phytosteryl, isostearyl, cetyl, stearyl, behenyl).