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Water-in-oil emulsified solid cosmetic

A technology of solid cosmetics, water-in-oil type, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve problems such as insufficient stability, achieve good fit, improve stability, and maintain stability

Pending Publication Date: 2021-04-30
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of the formulations disclosed in Patent Documents 1 and 2, the stability at high temperatures is still insufficient, especially when the powder is mixed with a high content of the internal water phase.

Method used

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  • Water-in-oil emulsified solid cosmetic
  • Water-in-oil emulsified solid cosmetic
  • Water-in-oil emulsified solid cosmetic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0063] The following examples are given to further describe the present invention in detail, and the present invention is not limited by these examples. Unless otherwise stated, the compounding quantity shows the mass % with respect to the cosmetics whole quantity.

[0064] Water-in-oil emulsified solid cosmetics were prepared according to the formulations shown in Tables 1 to 3 below. Then, the water-in-oil type emulsified solid cosmetics of each example were evaluated according to the following points (1) high temperature stability, (2) drop impact resistance at high temperature, (3) "good ductility (light weight)" in the actual use test. )”, “Fitness”, “Moisture” and “Powdering”.

[0065] · Evaluation methods and evaluation criteria

[0066] (1) High temperature stability

[0067] After storing the samples of each example at 80° C. for 2 hours, each sample was visually observed and evaluated according to the following criteria.

[0068] A: The sample (emulsion) was stab...

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Abstract

The purpose of the present invention is to provide a water-in-oil emulsified solid cosmetic having significantly improved stability at high temperatures while retaining excellent feel of use (smooth and fresh feel) that is derived from addition of powder to an internal water phase. The present invention pertains to a water-in-oil emulsified solid cosmetic comprising: an internal water phase in which an internal phase powder containing a hydrophilic titanium oxide is dispersed in an aqueous medium; and an external oil phase which is thickened or solidified with wax and / or a gelling agent, said water-in-oil emulsified solid cosmetic being characterized by containing a cationic dispersant and / or an amphoteric dispersant for dispersing the internal phase powder, and by having the internal phase powder contain at least 5.0 mass% of the hydrophilic titanium oxide with respect to the total amount of the cosmetic.

Description

technical field [0001] The present invention relates to a water-in-oil emulsified solid cosmetic in which a powder is highly compounded in an internal aqueous phase. More specifically, it relates to the stability at high temperature and the feeling of use (good ductility (light), fitting feeling, and moistness) despite the high content of hydrophilic powder containing hydrophilic titanium oxide in the internal water phase. Water-in-oil emulsified solid cosmetics with improved skin feel, etc. Background technique [0002] Water-in-oil emulsified solid cosmetics not only have excellent water resistance compared to oil-in-water emulsified types, but also have the characteristics of being able to effectively blend emollient oils, oil-soluble agents, and ultraviolet absorbers, etc., but lack a refreshing feeling and sometimes produce Sticky, greasy feeling of use. In addition, conventional water-in-oil emulsified solid cosmetics, especially color cosmetics, are generally produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/29A61K8/06A61K8/41A61K8/44A61K8/55A61Q1/02
CPCA61Q1/02A61K8/29A61K8/0216A61K8/064A61K8/416A61K8/891A61K8/92A61K8/585A61K2800/48A61K8/361A61K2800/43A61K2800/596
Inventor 远山麻依池田智子
Owner SHISEIDO CO LTD