JP2996410B2 - Solid water-in-oil emulsified cosmetic - Google Patents

Description

The present invention relates to a solid water-in-oil emulsified cosmetic which essentially contains silicone oil, solid wax, water and spherical powder. The present invention relates to a solid water-in-oil type emulsified cosmetic having a novel feel, having a good stability and a smooth feeling when applied to the skin while having a solid form, and having a refreshing feeling after finishing.

[Prior Art] In recent years, solid water-in-oil type emulsified cosmetics having good stability have been put on the market.

In particular, this type is solid, yet it gives the treatment properties that are characteristic of the emulsification type, so it has a high effect on the skin, and because it contains water, it feels "fresh and fresh" Although it has a new feeling of use, it is inferior in drawbacks such as "slippery and smoothness during coating" and "stickiness after finishing".

[Problems to be Solved by the Invention] In view of such circumstances, the present inventors have obtained a solid cosmetic composition having good stability and excellent feeling in use in an emulsification system using silicone oil. As a result of intensive research on the purpose, when a solid water-in-oil emulsified cosmetic comprising silicone oil, solid wax, water and spherical powder is applied to the skin,
Improves `` slippery during application '', makes it a `` smooth growth '' that adheres to the skin, and after finishing, improves `` glitteriness and oiliness '' and gives a very `` fresh '' feel This led to the completion of the present invention.

[Means for Solving the Problems] That is, the present invention mixes silicone oil, solid wax, water, spherical powder, and pigment powder other than spherical powder, and the amount of the spherical powder is cosmetic. It is intended to provide a solid water-in-oil type emulsified cosmetic characterized by being 2 to 25% by weight based on the total amount and 13 to 46% by weight based on the total pigment powder.

 Hereinafter, the configuration of the present invention will be described.

The solid water-in-oil type emulsified cosmetic described in the present invention shows a solidified product (including a paste) without fluidity in a temperature range (0 ° C. to 50 ° C.) usually used as a cosmetic.

The silicone oil used in the present invention is generally used in cosmetics, and is a dialkylpolysiloxane such as dimethylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and diethylpolysiloxane, and an alkylarylpolysiloxane such as methylphenylpolysiloxane. , Diarylpolysiloxane, fatty acid-modified polysiloxane, higher alcohol-modified polysiloxane, amino-modified polysiloxane, and polyoxyalkylene-modified organopolysiloxane. Although the amount of the silicone oil is related to the other oil phase components, it is preferably 30 to 97% by weight in the oil phase and 5 to 85% by weight in the total cosmetic. In particular, if a refreshing feeling is required, it is preferable to use a volatile silicone oil represented by the following structural formulas (1) and (2).
It can be blended in any ratio at 30 to 97% by weight.

Equation (1) (In the formula, n represents an integer of 0 to 3.) Specific examples include hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxinsan, and hexadecamethylheptasiloxane.

Equation (2) (In the formula, n represents an integer of 3 to 7.) Specific examples include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and tetradecamethylcycloheptasiloxane.

The solid wax used in the present invention may be one usually used in cosmetics, such as paraffin wax, petroleum wax such as microcrystalline wax, ozokerite, mineral wax such as ceresin, carnauba wax, and one kind of natural wax such as candelilla wax. Examples of a mixture of two or more mixtures having a melting point of the mixed wax of 50 ° C. or higher can be given.
In particular, a mixture of linear and / or branched hydrocarbons containing a linear hydrocarbon having 25 to 52 carbon atoms as a main component is preferable. The type of wax used is
It is selected according to the type of oil used, but it is difficult to obtain good wax esters such as carnauba wax and candelilla wax when used alone, and it is necessary to mix them with a linear or branched hydrocarbon wax. Is preferred. In addition, since hydrocarbon-based solid waxes that are generally commercially available are obtained as a mixture, they have a distribution in the number of carbon atoms, and also contain isoparaffin or naphthene. Anything should do. The compounding amount of the solid wax can be adjusted according to the required hardness. The ratio of the oil phase component to the solid wax is preferably 20: 1 to 3: 1, and more preferably 2 to 20% by weight in the total cosmetic. .

The spherical powder blended in the present invention is not particularly limited, and any spherical powder such as an inorganic powder, an organic powder, and a cellulosic powder may be used as long as the shape is spherical.

As the inorganic powder, for example, silica, alumina, titanium dioxide, magnesia, calcium carbonate, zirconia, etc.
As the organic powder, for example, nylon, polyethylene, polystyrene, Teflon, polymethyl methacrylate,
Polyester and the like.

The particle size is not particularly limited, but is preferably 2 to
20 μm is good. If it is smaller than 20 μm, a powdery finish is obtained.

In addition, the blending amount of the spherical powder blended in the present invention needs to be 2% by weight or more in the total cosmetics, and if it is less than this, smooth growth cannot be expected. If the content is more than 25% by weight, a smooth finish cannot be obtained due to slippery growth.
Preferably it is 4 to 20% by weight.

The emulsifier used in the present invention may be a commonly used emulsifier, such as sorbitan aliphatic ester, polyoxyalkylene-modified organopolysiloxane, glycerin or polyglycerin fatty acid ester, polyoxyalkylene alkylphenyl ether, polyoxyalkylene fatty acid ester, Examples thereof include polyhydric alcohol fatty acid esters and polyoxyalkylene ethers. One or a combination of two or more thereof is preferably used in an amount of 0.2 to 10% by weight of the total cosmetic.

The amount of water incorporated in the present invention must be at least 3% by weight of the total cosmetic, and if it is less than this, a refreshing feeling cannot be expected when used. Particularly, in order to obtain a very large refreshing feeling at the time of use, it is preferable to add 10% by weight or more. In the present invention, a pigment powder can be blended in addition to the essential components of silicone oil, solid wax, water and spherical powder. The pigment powder used in this case is not particularly limited as long as it is usually used in cosmetics.Inorganic pigments, organic pigments, and any pigment powder such as a metal pigment can be blended. Talc, kaolin, calcium carbonate, zinc white, titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine, titanium coated mica, bismuth oxychloride, red iron oxide, caking pigment, gunjo pink, chromium hydroxide, Mica titanium, yellow iron oxide, chromium oxide, aluminum cobalt, navy blue, black iron oxide, carbon black, silicic anhydride, magnesium silicate, bentonite, mica, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, light calcium carbonate , Heavy calcium carbonate, light magnesium carbonate, heavy magnesium carbonate, calamine, etc. It is.

Here, it is particularly preferable that the spherical powder and the pigment powder have been subjected to a hydrophobic treatment. As a method of the hydrophobizing treatment, a surface treated with high-viscosity silicone,
Alkyl hydrogen polysiloxanes whose surface is coated with a silicone resin reacted with them, which are further treated with alkenes, cationic surfactants, anionic surfactants, those treated with one or more nonionic surfactants, waxes Can be exemplified, but is not particularly limited as long as the surface is hydrophobic. Also, the amount of the pigment powder in the total cosmetics
It is preferably at most 65% by weight.

The solid water-in-oil type emulsified cosmetic of the present invention may contain components commonly used in cosmetics as long as the effects of the present invention are not impaired. For example, humectants such as polyhydric alcohols, mucopolysaccharides (such as sodium hyaluronate), organic acids and organic salts (amino acids, amino acid salts, and oxyacid salts) as water phase components, alcohols such as ethanol, and petrolatum as oil phase components , Lanolin, silicone wax, silicone resin, silicone gum, higher fatty acids, higher alcohols, etc., solid oil, semi-solid oil, squalane, liquid paraffin, ester oil, triglyceride, volatile hydrocarbon oil, fluorocarbon, etc. Surfactants such as surfactants, anionic surfactants, and nonionic surfactants, agents such as vitamin E, vitamin E acetate, astringents, antioxidants, preservatives, fragrances, dibasic sodium phosphate, etc. pH adjusters, clay minerals, thickeners, ultraviolet absorbers, etc. can be incorporated into the emulsified composition of the present invention. . Among the above mixable components, components having a moisturizing effect, such as polyhydric alcohols, mucopolysaccharides (sodium hyaluronate, etc.), organic acids and organic salts (amino acids, amino acid salts, oxyacid salts), etc., are considered to have the effect of the invention It is preferable to mix in a range that does not obscure water because volatilization of water is suppressed.

[Effect of the Invention] and [Examples] The solid water-in-oil emulsified cosmetic of the present invention has an oil phase containing volatile silicone oil and solid wax as an external phase, and emulsifies water using an emulsifier, Furthermore, by blending the spherical powder, it is a solid without fluidity, has little volatilization of water, has excellent stability without "cracks" and "weaks", and has a "cool feeling" when applied. Has a new feeling of use,
"Smooth growth" and "Smooth growth during application"
There is no "smooth streaks", no "stickiness after finishing", and an excellent "fresh" feeling. Especially when used as a makeup cosmetic, it is durable and solid, yet it can contain various moisturizers and chemicals as an aqueous phase component, and it has a smooth feel, refreshing feel and refreshing feel during use. It was new in point.

Further, it has an effect that the range of the container form to be filled can be expanded from the excellent stability. Hereinafter, the effects of the present invention will be described using examples, but the scope of the present invention is not limited thereby.

 All the percentages in the examples represent% by weight.

The feeling of use was evaluated using the solid water-in-oil type emulsified cosmetics of Examples 1 to 3 and Comparative Examples 1 to 3.

Example 1 (1) Decamethylcyclopentasiloxane 16 (2) Dimethylpolysiloxane (6 cps) 10 (3) Polyoxyalkylene-modified organopolysiloxane 5 (4) Paraffin wax (165 ° F.) 10 (5) Silicone Treated talc 16 (6) Silicone treated spherical silica powder 5 (7) Calcium stearate treated zinc oxide 3 (8) Silicone treated titanium dioxide 10 (9) Silicone treated iron oxide (yellow) 3 (10) Silicone treated iron oxide (red) 1) (11) Silicone-treated iron oxide (black) 0.1 (12) Ion-exchanged water 20 (13) Glycerin 5 (14) Preservative appropriate amount (15) Perfume appropriate amount Heat 1 to 4 and 15 to 80 ° C and dissolve 5 Add the mixture of ~ 11 and disperse with a homogenizer at 80 ° C. Further, a mixture of 12 to 14 preheated to 80 ° C is added and emulsified and dispersed. Thereafter, the mixture was filled in a medium dish in a fluid state and cooled to room temperature to obtain a desired solid water-in-oil emulsion foundation.

[Example 2] (1) Decamethylcyclopentasiloxane 14 (2) Dimethylpolysiloxane (6 cps) 10 (3) Sorbitan fatty acid ester 1 (4) Polyoxyalkylene-modified organopolysiloxane 2 (5) Microcrystalline wax (165)゜ F) 5 (6) Siliconized mica 34.5 (7) Spherical nylon powder 10 (8) Siliconized titanium dioxide 10 (9) Siliconized iron oxide (yellow) 3 (10) Siliconized iron oxide (red) 1 (11) ) Silicone treated iron oxide (black) 0.1 (12) Ion-exchanged water 5 (13) Glycerin 3 (14) Sodium hyaluronate 0.5 (15) Preservative proper amount (16) Fragrance proper amount 1 to 5 and 16 are heated to 80 ° C After dissolution, add 6-11 and add 80
Disperse with a homogenizer at ℃. 80 ° C in advance
Add the mixture of 12 to 15 heated and emulsify. Thereafter, the mixture was filled in a container and cooled to room temperature to obtain a desired solid water-in-oil emulsion foundation.

Example 3 (1) Octamethylcyclotetrasiloxane 17 (2) Methylphenylpolysiloxane 5 (3) Sorbitan fatty acid ester 2 (4) Polyoxyalkylene-modified organopolysiloxane 3 (5) Celesin 8 (6) Silicone treatment Titanium dioxide 16 (7) Silicone-treated iron oxide (yellow) 6 (8) Silicone-treated iron oxide (red) 2 (9) Silicone-treated iron oxide (black) 0.2 (10) Spherical cellulose powder 15 (11) Ion-exchanged water 20 (12) Dipropylene glycol 5 (13) Appropriate amount of preservative (14) Appropriate amount of perfume 1 to 5 and 14 are heated to 80 ° C, and after dissolution, 6 to 10 is added.
Disperse with a homogenizer at ℃. 80 ° C in advance
Add the mixture of 11 to 13 heated and emulsify. Thereafter, the mixture was filled in a container and cooled to room temperature to obtain a desired solid water-in-oil emulsion foundation.

Example 4 (1) Hexamethyldisiloxane 18.5 (2) Tetradecamethylcycloheptasiloxane 5 (3) Silicone resin 2 (4) Glyceric acid fatty acid ester 1 (5) Polyoxyalkylene-modified organopolysiloxane 2 (6 ) Microcrystalline wax 2 (7) Vaseline 1 (8) Silicone treated titanium dioxide 15 (9) Silicone treated iron oxide (yellow) 4.5 (10) Silicone treated iron oxide (red) 1.5 (11) Silicone treated iron oxide (black) 0.1 (12) spherical nylon powder 23 (13) cation-treated silica 3 (14) cation-treated talc 3 (15) sodium L-glutamate 0.1 (16) ion-exchanged water 15 (17) 1,3-butylene glycol 3 (18) Preservatives qs (19) Fragrance qs 1 to 7 and 19 are heated to 80 ° C, and after dissolution, add 8 to 14 and add
Disperse with a homogenizer at ℃. 80 ° C in advance
Add the heated mixture of 15-18 and emulsify. Thereafter, the mixture was filled in a container and cooled to room temperature to obtain a desired solid water-in-oil emulsion foundation.

Example 5 (1) Decamethylcyclopentasiloxane 26 (2) Polyoxyalkylene-modified organopolysiloxane 3 (3) Paraffin wax (145 ° F.) 4 (4) Silicone-treated titanium dioxide 15 (5) Silicone-treated oxidation Iron (yellow) 3 (6) Silicone-treated iron oxide (red) 1 (7) Silicone-treated iron oxide (black) 0.2 (8) Spherical cellulose powder 3 (9) Ethanol 5 (10) Deionized water 35 (11) Polyethylene Glycol 400 5 (12) l-menthol 0.1 (13) camphor 0.1 (14) Preservative proper amount (15) Fragrance proper amount Heat 1 to 3 and 12,13,15 to 80 ° C, dissolve and add 4 to 8 to 80 ° C Disperse with a homogenizer. Further, a mixture of 9 to 11,14 heated to 80 ° C. in advance is added and emulsified. Thereafter, the mixture was filled in a container and cooled to room temperature to obtain a desired solid water-in-oil emulsion foundation.

Comparative Example 1 The silicone-treated spherical silica powder of Example 1 was replaced with ordinary silicone-treated silica powder.

Comparative Example 2 The spherical nylon powder of Example 2 was replaced with ordinary nylon powder.

Comparative Example 3 The spherical cellulose powder of Example 3 was replaced with ordinary cellulose powder.

The solid water-in-oil type emulsified cosmetics of Examples 1, 2, and 3 and Comparative Examples 1, 2, and 3 were taken in appropriate amounts with a sponge and applied to the face, and the feel of use was evaluated. Table 1 shows the results.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masanori Aizawa 1050 Nippa-cho, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Shiseido Research Laboratories (72) Inventor Tsuneyo 1050 Nippa-cho, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Shiseido Co., Ltd. In the laboratory (56) References JP-A-64-79104 (JP, A) JP-A-1-143812 (JP, A) JP-A-62-10008 (JP, A) JP-A-63-51310 (JP, A) JP-A-63-66110 (JP, A) JP-A-57-98205 (JP, A) JP-A-63-141912 (JP, A) JP-A-63-96110 (JP, A) 68604 (JP, A) JP-A-51-121530 (JP, A)

Claims (1)

(57) [Claims] 1. A silicone oil, a solid wax, water,
A spherical powder and a pigment powder other than the spherical powder are blended, and the blending amount of the spherical powder is 2 to 25% by weight based on the total amount of the cosmetic and 13 to 46% by weight based on the total pigment powder. Solid water-in-oil emulsion cosmetics.