KR100343319B1 - A method for preparation of complex silicone elastomer powder and sunburn-preventing cosmetic composition containing powder prepared by the same - Google Patents

Abstract

The present invention comprises the steps of fixing the amorphous silica fine powder on the surface of the silicone elastomer powder having an average particle diameter of 0.1 to 50㎛; And coating the surface to which the amorphous silica fine powder is fixed with the inorganic ultraviolet scattering agent fine powder, and the raw material containing the powder produced by the method. The present invention relates to a cosmetic composition for prevention. Accordingly, according to the present invention, a method for producing a composite silicone elastomer powder having excellent water repellency and coating stability, high UV protection effect, and excellent long-lasting stiffness with excellent malleability and skin adhesiveness containing the composite powder and having a smooth and soft feeling of use (日 를) Can provide cosmetics for prevention.

Description

A method for preparation of complex silicone elastomer powder and sunburn-preventing cosmetic composition containing powder prepared by the same}

The present invention comprises the steps of fixing the amorphous silica fine powder on the surface of the silicone elastomer powder having an average particle diameter of 0.1 to 50㎛; And coating the surface to which the amorphous silica fine powder is fixed with the inorganic ultraviolet scattering agent fine powder, and the raw material containing the powder produced by the method. The present invention relates to a cosmetic composition for prevention.

In general, the term silicone elastomer refers to an elastic silicone resin such as rubber. Silicone elastomer powder is, for example, after preparing an aqueous emulsion of a curable silicone composition, and then curing the composition to form a silicone elastomer. It can be made through a process of forming an aqueous dispersion of water, and then removing water from the aqueous dispersion (see Japanese Patent Application Laid-Open No. 60-77942, Japanese Patent Application Laid-Open No. 1-70588, Japanese Patent Application Laid-Open No. 60-309565).

Conventional silicone elastomer powder has been used in cosmetics because of its soft and smooth texture, but it is difficult to disperse due to the strong cohesiveness unique to the elastic rubber powder. Especially, cake type products are easily broken by impact and have good adhesion to skin. Therefore, in order to use in cosmetics should be used after dispersing once in the medium, there is a problem that can not be used in an amount of 1% or more due to the thick feeling when applied to the skin.

In order to solve these problems, a composite silicone elastomer powder having improved cohesiveness and improving dispersibility and fluidity has been proposed. That is, Japanese Patent Application Laid-Open No. 4-348143 discloses a silicon oxide sol in an aqueous dispersion of a composite silicon elastomer powder and a silicon elastomer formed by coating the surface of the silicon elastomer with a metal oxide fine powder such as silicon oxide. After the addition, water is removed from this mixture to produce a composite silicone elastomer powder. Japanese Laid-open Patent Application Hei 5-179144 adds a silicone elastomer and an inorganic powder to water and mixes the mixture with water. It is proposed to make a complex mixture by removing water from this aqueous dispersion.

However, since the conventional composite silicone elastomer powders prepared by the above methods are simply attached to the surface of the silicone elastomer or exist in a mixture, dispersibility, fluidity, and cohesion Not only satisfactory, there was a problem that the inorganic powder is easily separated from the silicone elastomer when the composite silicone elastomer powder is subjected to shearing force.

Therefore, in order to solve this problem, Japanese Patent Laid-Open No. 7-102075 discloses a composite silicon elastomer powder in which amorphous silica fine powder having a surface silanol group of a certain density or more is firmly fixed by heating the surface of a silicon elastomer. Is presented.

On the other hand, Japanese Patent Laid-Open No. 6-1709 proposes a composite silicone resin powder coated with an inorganic powder and a cosmetic containing the composite powder, and in particular, a surface coated with an inorganic ultraviolet scattering agent fine powder having an ultraviolet scattering effect. It is proposed to mix composite silicone resin powder with cosmetics for preventing burnout.

However, as shown in Japanese Patent Application Laid-Open No. 6-1709, ultraviolet ray scattering fine powders such as titanium oxide fine powder and zinc oxide fine powder are prepared by using a device such as a ball mill or a hybridizer. UV scattering compound silicone elastomer powder attached and immobilized directly on the surface is subjected to shearing force by strong mixing, dispersing, etc., or the inorganic powder adhering to the surface comes out over time when it comes into contact with liquid such as water or organic solvent. There is a problem in that water repellency and coating stability are poor.

Accordingly, the present inventors have repeatedly studied the method for producing a composite silicon elastomer powder that can solve the above problems, and firmly adheres the amorphous silica powder to the surface of the silicon elastomer particles, and then inorganic The present invention was completed by discovering that by coating the fine powder of the ultraviolet scattering agent, not only the above problems can be solved, but also a composite silicone elastomer powder having excellent UV blocking effect can be obtained.

That is, an object of the present invention is to provide a method for producing a composite silicone elastomer powder having excellent water repellency and coating stability and high UV blocking effect.

It is still another object of the present invention to provide a long-lasting anti-nitrogen cosmetic containing the composite silicone elastomer powder, having excellent malleability and skin adhesion, and having a smooth and soft feeling.

1 is an enlarged photograph 2000 times of that obtained by observing the composite silicone elastomer powder of Example 3 with an electron microscope.

FIG. 2 is an enlarged photograph 6000 times larger than that obtained when the composite silicon elastomer powder of Example 3 was observed with an electron microscope. FIG.

In order to achieve the above object, the method for producing a composite silicone elastomer powder according to the present invention comprises the steps of: (i) fixing the fine silica powder on the surface of the silicone elastomer powder; And (ii) coating the surface on which the amorphous silica fine powder of step (i) is fixed with the inorganic ultraviolet scattering agent fine powder.

In addition, the anti-burn cosmetic composition of the present invention is characterized in that it contains 0.5 to 60% by weight of the composite silicone elastomer powder prepared by the method described above with respect to the total weight of the composition.

Hereinafter, the manufacturing method of the composite silicone elastomer powder will be described for each step.

(1) adhering the amorphous silica fine powder to the surface of the silicon elastomer powder:

When the fine silica powder is added to the silicon elastomer powder and mixed well using a mixing grinder such as a ball mill, an on mill, a screen mill, a pot mill, a mortar, a Henschel mixer or a hybridizer, Although the amorphous silica particles are firmly fixed to the surface of the silicone elastomer by the heat generated, the pulverized mixture may be heated by an appropriate heating means to be more firmly fixed as necessary. Although heating temperature is not specifically limited, Preferably it is the range of 40-95 degreeC, More preferably, it is the range of 60-90 degreeC.

The silicone elastomer powder used in the present invention preferably has a particle diameter of 0.1 to 50 µm, and more preferably a particle diameter of 0.2 to 30 µm, because the average particle diameter is less than 0.1 µm, and amorphous silica and ultraviolet rays are formed on the surface thereof. It is because the fluidity | liquidity and dispersibility of the obtained composite silicone elastomer powder are inferior when a scattering agent cannot fully be coat | covered and an average particle diameter exceeds 50 micrometers.

Specific examples of the silicone elastomer powder used in the present invention include Trefil E-506C (particle size 3 μm), Trefil E-501 (particle size 5 μm), Trefil E-600 (particle size 5 μm) from Toray Dow Corning Co., Ltd. ), Trefil E-601 (particle size 5 μm), Trefil E-602 (particle size 5 μm), Trefil E-603 (particle size 5 μm), Trefil R-900 (particle size 20 μm), Trefil R-925 (particle size 0.5 μm) ), And methyl polysiloxane powder such as Trefil R-930 (particle diameter of 1 μm), and the shape may be spherical, rod-like, plate-like, indefinite or the like.

Although the size of the amorphous silica fine powder used in the present invention is not particularly limited, it is preferable that the average particle diameter is 1 μm or less, and more preferably, the particle diameter is in the range of 0.1 to 0.001 μm, because the average particle diameter is 1 μm. This is because it is difficult to firmly adhere to the surface of the silicone elastomer, and the performance as a binder that binds to the inorganic scattering agent is also deteriorated. Although the shape of amorphous silica is not specifically limited, It is preferable that it is spherical.

Specific examples of the amorphous silica fine powder include amorphous silica made by a dry method and a wet method. Particularly, fumed silica made by a dry method is preferable. Although the coating amount of amorphous silica fine powder is not specifically limited, What is necessary is just an amount sufficient to adhere to the surface of a silicone elastomer, Specifically, it is preferable that it is the range of 0.1-30 weight% with respect to a silicone elastomer powder.

(2) coating the surface of the amorphous silica fine powder of step (1) with the inorganic ultraviolet scattering agent fine powder:

After adding the inorganic ultraviolet scattering agent fine powder to the silicon elastomer powder surface-treated with the amorphous silica prepared above and mixing it sufficiently using the mixing grinder mentioned in step (1), The surface is again coated with the ultraviolet scatterer fine powder. In this case, as in step (1), heating can be performed as necessary. The heating temperature is also the same as that in step (1).

As the inorganic ultraviolet scattering agent fine powder used in the present invention, fine powders such as titanium oxide, zinc oxide, zirconium oxide, cerium oxide, iron oxide, aluminum oxide and the like known in cosmetics may be mentioned. It is not limited. In particular, when the fine particle titanium oxide, the fine particle zinc oxide or flaky zinc oxide and the silicon elastomer powder are combined, the UV blocking effect is large and the feel is also improved. As a commercial item of a fine particle titanium oxide, MT-500B of Nippon Imperial Chemical Co., Ltd., C47056 of Sun Chemical Inc. of the United States, etc. are mentioned, Z-COTE of SunSmart Inc. of USA, Japan as a commercial item of fine particle zinc oxide, Japan (6) Fine zincation of Chemical Co., Ltd. is mentioned. As the ultraviolet scattering agent fine powder, those which have been subjected to hydrophobization treatment such as silicon coating or fluorine treatment can be used. The ratio of coating the inorganic ultraviolet scattering agent fine powder on the silicone elastomer powder is to coat the inorganic ultraviolet scattering agent fine powder in the amount of 1 to 100% by weight, preferably 2 to 50% by weight with respect to the silicone elastomer powder. good.

The composite silicone elastomer powder according to the method of the present invention does not directly coat an inorganic ultraviolet scattering agent such as titanium oxide and zinc oxide on the surface of the silicone elastomer, but a kind of binder between the inorganic ultraviolet scattering agent and the silicone elastomer. (binder) or a coating enhancer made by coating silica with amorphous silica, the mechanism of which is a silanol group on a silicon elastomer surface, a silicon atom-bonded hydrogen atom or a silicon atom-bonded alkoxy group, and a silanol group on an amorphous silica surface. In this way, the amorphous silica is firmly bound, and the inorganic ultraviolet scattering agent and the amorphous silica are strongly bound because the polarities of zeta potential, which is a measure of electrostatic attraction, have opposite signs.

In addition, the composite silicone elastomer powder according to the present invention exhibits excellent UV blocking effect due to its excellent malleability and dispersibility as compared with conventional UV scattering agent coated platelets such as mica titanium and UV scattering agent-containing silica beads. That is, the composite silicone elastomer powder of the present invention exhibits excellent dispersibility without being aggregated or aggregated at all even when the inorganic ultraviolet scattering agent is coated up to about 50%, and maintains a unique smooth feeling of use.

In addition, since the composite silicone elastomer powder of the present invention is easy to press, it is possible to obtain a product having a drop stability while applying elasticity when applied to a cake type makeup product.

The composite silicone elastomer powder of the present invention prepared as described above is excellent in water repellency and coating stability and can be blended and used as it is in cosmetics, but according to the needs of the formulation, water repellency, oil repellency, dispersibility, usability, etc. In order to improve, various surface treatments such as metallurgical treatment, silicon treatment, fluorine compound treatment and acylamino acid treatment may be further performed.

The composite silicone elastomer powder produced by the above method is contained in the anti-burning cosmetic composition, the content of which is 0.5 to 60% by weight, preferably 1 to 25% by weight based on the total weight of the composition.

The composite silicone elastomer powder of the present invention may be combined with a base used in cosmetics, quasi-drugs, and external medicines that are generally used to obtain a cosmetic composition for preventing burnout.

Powders of the anti-burn cosmetic composition of the present invention include organic pigments such as mica, talc, sericite, kaolin, nylon powder, inorganic pigments such as pearl, red 202, red 226, yellow 4, aluminum lake, etc. It may contain a pigment and inorganic powders such as various known zinc oxides, titanium oxides, zirconium oxides and iron oxides, and may contain powders treated with silicon, metallurgical, N-acylamino acid and fluorine. Moreover, as an oil agent, Hydrocarbons, such as a paraffin, a crystalline oil, a seretine, or a solid form or liquid phase; Vegetable oils such as olive oil and lanolin; Fatty acids such as stearic acid, palmitic acid, oleic acid, glycerin monostearic acid esters and esters thereof; Silicone oils such as methyl polysiloxane, methylphenyl polysiloxane and dimethylcyclopolysiloxane; Alcohols such as ethyl alcohol isopropyl alcohol cetyl alcohol, stearyl alcohol and the like, and the like, and polyhydric alcohols such as glycol, glycerin or sorbitol may also be contained as a moisturizing agent.

In addition, in order to further enhance the UV blocking effect, a known organic UV absorber such as Parsol MCX may be combined and combined.

Moreover, surfactant, silicone containing surfactant, thickener, preservative, antioxidant, etc. which can be mix | blended with cosmetics, quasi drug, external pharmaceuticals, etc. can also be mix | blended.

The formulation of the anti-burn cosmetic composition of the present invention is not particularly limited, but may be formulated into a formulation such as an emulsion, a cream, an oil, or an oily solid.

Hereinafter, the present invention will be described in detail with reference to specific examples, comparative examples, formulation examples, and test examples, but the present invention is not limited only to these examples.

Example 1

100 g of spherical silicon elastomer powder (Dow Corning Corp., Trefil E506C) with an average particle diameter of 3 μm and 5 g of fumed silica (primary particle diameter = 0.02 μm) were sufficiently mixed into a rotary ball mill and treated for 3 hours. 100 g of silicone elastomer powder and 20 g of fine particle zinc oxide (Japan Zinc Chemical Co., Ltd., microzincification) having an average particle diameter of 0.2 g were put into a rotary ball mill and further treated for 3 hours to obtain a composite silicone elastomer powder. It was found that the surface of the composite silicone elastomer powder obtained through electron microscopy was completely covered with particulate zinc oxide.

Example 2

A composite silicon elastomer powder was obtained in the same manner as in Example 1, except that fine particle titanium oxide (JPN, MT500B) having an average particle diameter of 0.03 µm was used instead of the fine particle zinc oxide. It was found that the surface of the composite silicon elastomer powder obtained through electron microscopy was completely covered with fine titanium oxide.

Example 3

Instead of particulate zinc oxide, except that 22.5 g of particulate zinc oxide having a mean particle size of 0.27 µm (Japan Zinc Chemical Co., Ltd.) and 22.5 g of particulate titanium oxide having a mean particle size of 0.03 µm (US Sun Chemical Inc .: C47056) were used. Was prepared in the same manner as in Example 1 to obtain a composite silicone elastomer powder. It was found that the surface of the composite silicon elastomer powder obtained through electron microscopy was completely covered with particulate zinc oxide and particulate titanium oxide (see FIGS. 1 and 2).

Comparative Example 1

100 g of spherical silicon elastomer powder (Dow Corning Corp., Trefil E506C) with an average particle diameter of 3 μm, and 22.5 g of fine particle zinc oxide (Japanese Zinc Co., Ltd.) and an average particle diameter of 0.03 μm 22.5 g of titanium oxide (US Sun Chemical Inc., C47056) was sufficiently mixed, placed in a rotary ball mill, and treated for 3 hours to obtain a composite silicone elastomer powder.

Comparative Example 2

A composite silicon elastomer prepared in the same manner as in Comparative Example 1, except that 45 g of particulate titanium oxide (US Sun Chemical Inc. 製 Trefil E506C) having an average particle diameter of 0.03 µm was used instead of the particulate zinc oxide and particulate titanium oxide. Powder was obtained.

Comparative Example 3

100 g of spherical silicon elastomer powder (Trefil E506C manufactured by Dow Corning Corp.) and 5 g of fumed silica (primary particle diameter = 0.02 μm) were sufficiently mixed in a rotary ball mill and treated for 3 hours to obtain silica-coated silicon. Elastomer powder was obtained.

Test Example 1 Water repellency comparison test after receiving a shear force

10 g of each of the composite powders obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were placed in a 200 ml beaker containing water, stirred vigorously for 10 minutes, and left for one day.

Type of composite powder Beaker Observation Results with Composite Powder Example 1 The composite powder is still floating on the water, and the water layer below is transparent Example 2 The composite powder is still floating on the water, and the water layer below is transparent Example 3 The composite powder is still floating on the water, and the water layer below is transparent Comparative Example 1 Sedimentation of Powders Over Time Comparative Example 2 Sedimentation of Powders Over Time Comparative Example 3 The composite powder is still floating on the water, and the water layer below is transparent

As can be seen in Table 1, the composite silicone elastomer powder according to the present invention maintains the water repellency of the original silicone elastomer powder before the UV scattering agent is coated, even when subjected to strong shearing force. It can be seen that the composite silicone elastomer powder by the water repellency is significantly reduced after receiving the shear force, from which the composite silicone elastomer powder of the present invention is hardly adhered to the silicone elastomer because the ultraviolet scattering powder is firmly attached to the silicone elastomer. It can be seen that it is not, that is, the coating stability is excellent.

Test Example 2 Comparative Test of UV Protection Effect

The ultraviolet blocking effect of the composite silicone elastomer powder of the present invention was compared with the powders of Comparative Examples 1, 2 and 3, and the results are shown in Table 2. SPF, a UV protection index, was measured using the Solar Protection Measurement System SPF290 from Optometrics Group, USA, and measured in vitro SPF values according to the content of the composite powder based on talc.

Type of composite powder Weight% of Measured Sample Overlaid Powder Coating amount (mg / cm ² ) In vitro SPF value Example 3 10 2.1 12 20 2.0 18 30 2.1 34 Comparative Example 1 10 1.6 7 20 1.5 10 30 1.6 12 Comparative Example 2 10 1.5 8 20 1.7 10 30 1.6 13 Comparative Example 3 10 1.2 2 20 1.3 3 30 1.3 3

As can be seen in Table 2, the SPF value of the composite silicone elastomer powder of the present invention can be seen that the SPF value also increases proportionally as the content of the powder increases, Comparative Examples 1 and 2 In this case, the coating amount of the overall ultraviolet scattering agent is the same amount as in Example 3, but because the coating stability is relatively low, the coating amount is slightly decreased, and also the UV blocking effect is low. On the other hand, in the case of the powder coated with only the silica of Comparative Example 3, since the sunscreen was not contained, the SPF value was remarkably low.

Formulation Example 1

Formulation examples of the lotion in the cosmetic composition containing the composite silicone elastomer powder of the present invention were prepared according to the formulation shown in Table 3 below.

number Name Formulation Example 1 Comparative Formulation Example 1-1 Comparative Formulation Example 1-2 Comparative Formulation Example 1-3 One Composite powder of Example 1 3.0 - - - One Composite powder of Comparative Example 1 - 3.0 - - One Composite powder of Comparative Example 2 - - 3.0 - One Composite Powder of Comparative Example 3 - - - 3.0 2 Cetyl alcohol 1.0 1.0 1.0 1.0 3 Beeswax 0.5 0.5 0.5 0.5 4 Waserin 2.0 2.0 2.0 2.0 5 Squalane 6.0 6.0 6.0 6.0 6 Dimethylpolysiloxane 2.0 2.0 2.0 2.0 7 ethanol 5.0 5.0 5.0 5.0 8 glycerin 4.0 4.0 4.0 4.0 9 POE (10) Monooleic Acid Ester 1.0 1.0 1.0 1.0 10 Glycerol Monostearic Acid Ester 1.0 1.0 1.0 1.0 11 antiseptic Quantity Quantity Quantity Quantity 12 Colorant (dye) Quantity Quantity Quantity Quantity 13 Spices Quantity Quantity Quantity Quantity 14 Purified water to 100 to 100 to 100 to 100

<Manufacturing method>

Formulation Example 1 Raw materials 8, 11, and 12 were sequentially added to raw material 14, heated to 80 to 85 ° C., and added to the emulsifying unit, and then the emulsifier was operated. Raw materials 1 to 6, 9, and 10 were used at 80 to 85 ° C. It was heated to a degree and emulsified. After emulsification, the mixture was cooled to 50 ° C. while stirring using a stirrer, and then the raw material 7 was added. After cooling to 45 ° C., the raw material 13 was added, cooled to 25 ° C., and aged.

Comparative Formulation Examples 1-1, 1-2, and 1-3: Except for using the composite powder of Comparative Example 1, Comparative Example 2 and Comparative Example 3 was prepared in the same manner as in Formulation Example 1.

Formulation Example 2

Formulation examples of the cream in the cosmetic containing the composite silicone elastomer powder of the present invention was prepared according to the formulation shown in Table 4.

number Name Formulation Example 2 Comparative Formulation Example 2-1 Comparative Formulation Example 2-2 Comparative Formulation Example 2-3 One Composite powder of Example 2 5.0 - - - One Composite powder of Comparative Example 1 - 5.0 - - One Composite powder of Comparative Example 2 - - 5.0 - One Composite Powder of Comparative Example 3 - - - 5.0 2 Stearyl alcohol 6.0 6.0 6.0 6.0 3 Stearic acid 2.0 2.0 2.0 2.0 4 lanolin 4.0 4.0 4.0 4.0 5 Squalane 9.0 9.0 9.0 9.0 6 Octyldodecanol 10.0 10.0 10.0 10.0 7 POE (25) cetyl alcohol ether 3.0 3.0 3.0 3.0 8 Glycerin Monostearate 2.0 2.0 2.0 2.0 9 1,3-butylene glycol 6.0 6.0 6.0 6.0 10 antiseptic Quantity Quantity Quantity Quantity 11 Colorant (dye) Quantity Quantity Quantity Quantity 12 Spices Quantity Quantity Quantity Quantity 13 Purified water to 100 to 100 to 100 to 100

<Manufacturing method>

Formulation Example 2: Raw materials 9, 10, and 11 were sequentially added to raw material 13, heated to 80 to 85 ° C., and added to the emulsifying unit. The emulsifier was operated, and raw materials 1 to 8 were heated to about 80 to 85 ° C. Then emulsified. After emulsification, the mixture was cooled to 45 ° C. while stirring using a stirrer, and then the raw material 12 was added, cooled to 25 ° C., and aged.

Comparative Formulation Examples 2-1, 2-2 and 2-3: Preparation was carried out in the same manner as in Formulation Example 2 except for using the composite powder of Comparative Example 1, Comparative Example 2 and Comparative Example 3.

[Formulation Example 3]

Formulation examples of the liquid foundation in the cosmetic containing the composite silicone elastomer powder of the present invention were prepared according to the formulation shown in Table 5 below.

number Name Formulation Example 3 Comparative Formulation Example 3-1 Comparative Formulation Example 3-2 Comparative Formulation Example 3-3 One Composite powder of Example 3 4.0 - - - One Composite powder of Comparative Example 1 - 4.0 - - One Composite powder of Comparative Example 2 - - 4.0 - One Composite Powder of Comparative Example 3 - - - 4.0 2 Glyceryl Monostearate 1.5 1.5 1.5 1.5 3 Sorbitan monooleate 1.5 1.5 1.5 1.5 4 Monostearic acid polyoxyethylene glycerine 1.0 1.0 1.0 1.0 5 Stearic acid 1.5 1.5 1.5 1.5 6 Cetyl alcohol 0.5 0.5 0.5 0.5 7 Cetearyl Octanoate 10.0 10.0 10.0 10.0 8 Pyromethicone 5.0 5.0 5.0 5.0 9 Dextrin palmitate 0.3 0.3 0.3 0.3 10 Propylene glycol 5.0 5.0 5.0 5.0 11 Carboxy Vinyl Polymer 0.1 0.1 0.1 0.1 12 Iron oxide 2.5 2.5 2.5 2.5 13 Titanium dioxide 5.0 5.0 5.0 5.0 14 antiseptic Quantity Quantity Quantity Quantity 15 Spices Quantity Quantity Quantity Quantity 16 Purified water to 100 to 100 to 100 to 100

<Manufacturing method>

Formulation Example 3: The colloid mill was passed through the raw materials 10-13 while maximizing the scale of the colloid mill, washed with a part of the raw material 16, added to the emulsification unit, and the raw materials 16 and 14 were sequentially added and heated to 80-85 ° C. After adding to the emulsification unit, the emulsifier was operated and the raw materials 1-9 were heated to 80-85 ° C. and then emulsified. After emulsification, the mixture was cooled to 45 ° C. while stirring using a stirrer, and then the raw material 15 was added, cooled to 25 ° C., and aged.

[Formulation Example 4]

Formulation examples of the two-way cake in the cosmetic containing the composite silicone elastomer powder of the present invention was prepared according to the formulation shown in Table 6.

Name Formulation Example 4 Comparative Formulation Example 4-1 Comparative Formulation Example 4-2 Comparative Formulation Example 4-3 A 1. Serisite To 100 To 100 To 100 To 100 2. Mica 20 20 20 20 3. kaolin 5 5 5 5 4. Silica 5 5 5 5 5. Composite powder of Example 3 1.0 － - - 5. Composite powder of Comparative Example 1 - 1.0 - - 5. Composite powder of Comparative Example 2 - - 1.0 - 5. Composite powder of Comparative Example 3 - - - 1.0 B 6. Iron oxide 8 8 8 8 7. Dimethicone 5 5 5 5 8. Preservative 0.20 0.20 0.20 0.20 9. Spices 0.20 0.20 0.20 0.20

<Manufacturing method>

Formulation Example 4: 1) A is mixed with a Henschel mixer.

2) Mix and stir while spraying B on A.

3) Mixing A and B The stirred bulk is pulverized with an atomizer and then sieved.

4) After 2 or 3 days of sealed storage, aged and molded.

Comparative Formulation Examples 4-1, 4-2 and 4-3: Except for using the composite powder of Comparative Example 1, Comparative Example 2 and Comparative Example 3 was prepared in the same manner as in Formulation Example 4.

Formulation Example 5

Face powder in the cosmetic containing the composite silicone elastomer powder of the present invention was prepared according to the formulation shown in Table 7.

Name Formulation Example 5 Comparative Formulation Example 5-1 Comparative Formulation Example 5-2 Comparative Formulation Example 5-3 A 1.nylon powder 5 5 5 5 2. Silica 5 5 5 5 3. Serisite To 100 To 100 To 100 To 100 4. Heavy Magnesium Carbonate 3 3 3 3 5. Mica 20 20 20 20 6. Zinc Oxide 3 3 3 3 7. Iron Oxide 2 2 2 2 8. Composite Powder of Example 3 5.0 － － － 8. Composite powder of Comparative Example 1 - 5.0 - - 8. Composite powder of Comparative Example 2 - - 5.0 - 8. Composite powder of Comparative Example 3 - - - 5.0 B 9. Preservative 0.15 0.15 0.15 0.15 10. Spices 0.30 0.30 0.30 0.30

<Manufacturing method>

Formulation Example 5, Comparative Formulation Examples 5-1, 5-2, and 5-3: The procedure is the same as the preparation method of Formulation Example 4.

<Test Example 3> Sensory test of antiseptic cosmetics according to the present invention

[2Way Cake Review of Formulation Example 4]

For each of the two-way cakes of Formulation Example 4 and Comparative Formulation Examples 4-1, 4-2, and 4-3, five items such as malleability, skin adhesion, feeling, concealment, and persistence were examined. After carrying out the comparative evaluation questionnaire for people, the results are shown in Table 8.

Malleability Skin adhesion Smooth and soft feeling Concealable Persistence Formulation Example 4 23 38 24 42 28 Comparative Formulation Example 4-1 3 5 2 4 10 Comparative Formulation Example 4-2 3 5 2 4 10 Comparative Formulation Example 4-3 21 2 22 0 2

As can be seen from Table 8, compared with the formulation containing the composite silicone elastomer powder of the present invention, Comparative Examples 4-1, 4-2, malleable or applied, skin adhesion, smooth and soft feeling, concealed Most of the items, such as gender, showed good preferences, and slightly higher preferences in terms of persistence. In addition, Comparative Formulation Example 3 showed a good result similar to the formulation using the composite silicone elastomer powder of the present invention in terms of malleability and usability, but the lowest result in terms of skin adhesion and concealment. In particular, the two-way cake formulation of the present invention was found to exhibit excellent physical properties peculiar to silicone elastomers even though the composite silicone elastomer powder was contained in a small amount of 1.0% by weight.

[Face Powder Review of Formulation Example 5]

For each of the face powders of Formulation Example 5 and Comparative Formulation Examples 5-1, 5-2, and 5-3, five items such as malleability, applicability, usability, blooming effect, and persistence were examined. After carrying out the comparative evaluation questionnaire for people, the results are shown in Table 9.

Malleability Application force Smooth and soft feeling Blooming effect Persistence Formulation Example 5 23 44 24 32 36 Comparative Formulation Example 5-1 3 3 2 8 6 Comparative Formulation Example 5-2 3 3 2 8 6 Comparative Formulation Example 5-2 21 0 22 2 2

As can be seen in Table 9 above, similar to the two-way cake, compared to the formulation containing the composite silicone elastomer powder of the present invention, malleability, coating power, smooth and soft feeling, blooming effect and durability Most of the items showed good preference.

As described above, the composite silicone elastomer powder of the present invention has excellent water repellency and coating stability, high UV protection effect, and contains the composite powder, compared with the conventional ultraviolet scattering agent coated silicone resin powder. It can be seen that the anti-burn cosmetics can provide excellent malleability and skin adhesion and provide a smooth and soft feeling.

Claims (5)

(i) adhering the amorphous silica fine powder to the surface of the silicon elastomer powder; And (ii) coating the surface on which the amorphous silica fine powder of step (i) is fixed with the inorganic ultraviolet scattering agent fine powder Method for producing a composite silicone elastomer powder comprising a. The method for producing a composite silicone elastomer powder according to claim 1, wherein the average particle diameter of the silicone elastomer powder in step (i) is 0.1 to 50 µm. The composite silicone elastomer according to claim 1, wherein the inorganic ultraviolet scatterer fine powder is at least one selected from titanium oxide fine particles, zinc oxide fine particles, zirconium oxide fine particles, cerium oxide fine particles, iron oxide fine particles and aluminum oxide fine particles. Production method of powder. The method of producing a composite silicon elastomer powder according to claim 1, wherein the amorphous silica fine powder is fumed silica made by a dry method. An anti-nitrogen cosmetic composition, comprising from 0.5 to 60% by weight of the composite silicone elastomer powder produced by the method of claim 1.