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Solid powder cosmetic

A technology for solid powder and cosmetic materials, which is applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve the problems of easy cracking, crushing, caking, etc., and achieve the effect of uniform impact resistance and not easy to agglomerate

Active Publication Date: 2021-06-22
TOKIWA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the solid powder cosmetics mixed with semi-solid oil and liquid oil have the problem of agglomeration or easy cracking and pulverization during use, making it difficult to use to the end

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0072] As for the preparation of the powder slurry, a method of adding a dispersion medium to the cosmetic base obtained by the same method as the above-mentioned dry manufacturing method and mixing them is mentioned.

[0073] As a dispersion medium, a volatile solvent can be used. Examples of the volatile solvent include light liquid isoparaffin, ethanol, acetone, isopropanol, and water.

[0074] In terms of mass ratio, the mixing ratio of cosmetic base material and dispersion medium can be set as: cosmetic base material: dispersion medium = 100:60 to 100:10. Medium = 100:40 ~ 100:20.

[0075] About mixing of a cosmetic base material and a dispersion medium, the method of kneading using a kneader, a universal mixer, etc. is mentioned, for example. Moreover, it can mix, heating, as needed.

[0076] In the step of compression-molding and drying the slurry filled in the container, the slurry obtained above may be defoamed as necessary, filled into a designated container, and ...

Embodiment 1～13 and comparative example 1～7

[0136] Foundations having the compositions shown in Tables 1 to 3 were prepared according to the following manufacturing methods, and the above-mentioned evaluations were performed. The results are shown in Tables 1-3 together.

[0137]

[0138] The powder components of Components 1 to 15 were uniformly dispersed by a Henschel mixer to obtain a mixture I. Components 16-25 were heated to 70° C. and uniformly dispersed to obtain dispersion II. While stirring the mixture I in a Henschel mixer, the dispersion II was added thereto and uniformly dispersed. This was pulverized with a pulverizer to obtain a cosmetic base material. The cosmetic base material is filled in a resin disc, and compressed into a powder solid cosmetic by a press.

[0139] [Table 1]

[0140]

[0141] [Table 2]

[0142]

[0143] [table 3]

[0144]

[0145] In Tables 1 to 3, details of each component are as follows.

[0146] *1: Snorrif P (manufactured by Oaken Co., Ltd., product name, amorphou...

Embodiment 14

[0158] (embodiment 14: white powder)

[0159]

[0160]

[0161] The details of each component are the same as those described above. In addition, the details of the components of *12 and *13 are as follows.

[0162] *12: KSP-411 (manufactured by Shin-Etsu Chemical Co., Ltd., product name, average particle diameter: 30 μm)

[0163] *13: BELSIL SDM 3526VP (manufactured by Asahi Kasei Wakka-Silicon Co., Ltd., product name, stearyl dimethicone, melting point 35°C)

[0164]

[0165] The powder components of Components 1 to 12 were uniformly dispersed by a Henschel mixer to obtain a mixture I. Components 13-18 were heated to 70° C. and uniformly dispersed to obtain dispersion II. While stirring the mixture I in a Henschel mixer, the dispersion II was added thereto and uniformly dispersed. This was pulverized by a pulverizer to obtain a cosmetic base material. The cosmetic base material is filled in a resin disc, and compressed into a powder solid cosmetic by a press.

...

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Abstract

A solid powder cosmetic contains a powder component and an oily component, wherein the oily component includes (A) a silicone wax having a melting point of 25-55 DEG C, the powder component includes (B) a polyethylene terephthalate powder and (C) a spherical elastic powder, the (A) silicone wax content is 0.1-6.0 mass% based on the total weight of the solid powder cosmetic, and the (B) polyethylene terephthalate powder content is 5.0-25.0 mass% based on the total weight of the solid powder cosmetic.

Description

technical field [0001] The invention relates to a solid powder cosmetic. Background technique [0002] Solid powder cosmetics used for foundations and the like are composed of powder components and oily components, and are often used in a form stored in a small container. Therefore, impact resistance is required in consideration of movement during carrying. On the other hand, the required functions of foundation and the like include a soft focus effect that adjusts the texture of the skin and blurs the unevenness of the skin, and smooth spreadability to obtain a uniform makeup feeling by moderately adhering to the skin. As a method to achieve a soft-focus effect and smooth ductility, spherical powder is generally used, and spherical elastic powder such as silicone elastomer and polyurethane can obtain a soft and moist feeling of use. However, spherical powders have weak cohesiveness between powders, and solid powder cosmetics that use spherical powders to improve makeup ten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/895A61K8/85A61K8/891A61K8/893A61Q1/00
CPCA61K8/85A61K8/89A61Q1/00A61K8/893A61K8/891A61K8/895
Inventor 若林奈津美
Owner TOKIWA CORP