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Cosmetic base and skin cosmetic using same

A technology of cosmetics and bases, applied in the field of skin cosmetics, to achieve the effect of novel appearance and sense of use

Pending Publication Date: 2020-04-24
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the invention of Patent Document 4 is an invention aimed at maintaining the hardness of cosmetics at a constant level or higher. In order to achieve this purpose, only sodium acrylate grafted starch and hydrophobically modified polyether urethane cannot satisfy, and it is necessary to further combine Water-swellable clay mineral (see Comparative Examples 5 and 6 of Patent Document 4)

Method used

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  • Cosmetic base and skin cosmetic using same
  • Cosmetic base and skin cosmetic using same
  • Cosmetic base and skin cosmetic using same

Examples

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Effect test

Embodiment

[0074] Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these Examples. About compounding quantity, unless it mentions especially, it shows mass %.

[0075] Skin cosmetics (samples) were prepared according to the formulations shown in the table below. The following items were evaluated about the sample of each example. The results are shown together in the table.

[0076]

[0077]

[0078] Professional sensory assessors (10 females) were asked to use each sample (composition), and whether to feel the refreshing feeling from the jelly-like appearance, and whether to feel the unique and novel feeling of use of the present invention after being applied to the skin, based on the following evaluation criteria.

[0079] (evaluation criteria)

[0080] A + : More than 9 out of 10 people answered that they felt

[0081] A: More than 8 out of 10 people answered that they felt

[0082] B: 5-7 out of 10 peo...

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Abstract

The purpose of the present invention is to provide a cosmetic base having an unprecedented appearance and feeling on use, in particular a cosmetic base with a novel feeling on use that gives a fresh feeling of a sherbet-like appearance and a unique feel as if the cosmetic softly bursts and collapses, allowing water to flow out, when applied to the skin, and a skin cosmetic using the same. The present invention relates to a cosmetic base including (A) 0.15-0.6 mass% of sodium acrylate-grafted starch and (B) 0.25-1.35 mass% of an associative thickener having a polyoxyalkylene chain wherein the total amount of the (A) sodium acrylate-grafted starch and (B) associative thickener having a polyoxyalkylene chain compounded is 0.5-1.5 mass% and to a skin cosmetic that uses the cosmetic base.

Description

technical field [0001] The present invention relates to a cosmetic base with novel appearance and sense of use and skin cosmetics using the base. More specifically, it relates to a cosmetic base and a skin cosmetic that have a jelly-like appearance and that collapse when applied to the skin to impart a unique touch like water. Background technique [0002] In the technical field of cosmetics and external preparations for skin, various thickeners are blended for the purpose of adjusting the stability and usability of preparations, maintaining dosage forms, and the like. For example, it is described in Patent Document 1 that an associative thickener comprising a relatively low molecular weight hydrophobically modified polyether urethane containing a water-soluble monomer and a hydrophobic monomer has excellent resistance to external factors such as salt concentration and pH. Thickening stability and usability such as wettability are also excellent. [0003] In addition, Pate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/73A61K8/81A61K8/86A61K8/87A61Q19/00
CPCA61K8/87A61Q19/00A61K8/732A61K8/8158A61K2800/10A61K8/731A61K8/86A61K8/8152A61K8/042A61K2800/48A61K8/91A61K8/92
Inventor 上野坚登伊部绚子菊田雅之堀文香藤卷大树
Owner SHISEIDO CO LTD
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