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Water-in-oil type cosmetic emulsion preparation

A technology of emulsifying cosmetics and water-in-oil type, which is applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc. It can solve the problems of impaired stability, lack of lubricity or skin affinity, no lubricity, etc., and achieve color suppression Excellent streak and dispersion stability

Pending Publication Date: 2019-06-21
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned water-in-oil type emulsified cosmetics are based on silicone oil and have problems of lack of lubricity and skin compatibility
In addition, even if hydrocarbon oil or polar oil is blended into these water-in-oil emulsified cosmetics in order to improve the feeling of use, sufficient improvement in lubricity is not seen, but stability is impaired instead, and pigment aggregation occurs. The case of colored stripes

Method used

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  • Water-in-oil type cosmetic emulsion preparation
  • Water-in-oil type cosmetic emulsion preparation
  • Water-in-oil type cosmetic emulsion preparation

Examples

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Embodiment

[0070] Hereinafter, although an Example is given and this invention is demonstrated in more detail, this invention is not limited to these Examples. Unless otherwise specified, the compounding quantity shows mass %. Before the examples, the evaluation method used in the present invention will be described.

[0071] (1) Lubricity, relaxed feeling of extension

[0072]The actual use test was carried out on each sample by 10 professional sensory inspectors. Specifically, the emulsified foundation of each sample was applied to the face of each sensory examiner, and the lubricity and light feeling of spreading were evaluated according to the following criteria.

[0073]

[0074] A: 7 or more out of 10 were evaluated as excellent

[0075] B: 5 or more and less than 7 out of 10 people evaluated as excellent

[0076] C: Less than 5 out of 10 were evaluated as excellent

[0077] (2) Color stripes (powder dispersibility)

[0078] After each sample was filled in a transparent gla...

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Abstract

The purpose of the present invention is to provide a low-viscosity water-in-oil type cosmetic emulsion preparation which gives a smooth use feeling, lightly spreads when applied, and has excellent dispersed-powder stability. The cosmetic emulsion preparation of the present invention is characterized by comprising (A) a polar oil which is liquid at 25 DEG C and has an IOB value exceeding 0.1, (B) ahydrocarbon oil, (C) a polyoxyalkylene- and alkyl-modified organopolysiloxane represented by general formula (I), and (D) a powder surface-treated with both an N-acylamino acid and methylpolysiloxane. In formula (I), R represents a hydrogen atom or a C1-5 alkyl group, x is an integer of 5-50, y is an integer of 1-30, z is an integer of 20-200, a is an integer of 2-20, b is an integer of 1-5, c isan integer of 2-20, and d is an integer of 0-20.

Description

technical field [0001] The invention relates to a water-in-oil emulsified cosmetic. More specifically, it relates to a water-in-oil emulsified cosmetic such as a cream foundation having a lubricious feeling in use, easy spreading, and excellent dispersion stability of powder. Background technique [0002] The water-in-oil emulsified composition with the oil phase as the outer phase and the water phase as the inner phase can effectively spread oil-soluble active ingredients, such as emollient oils, oil-soluble medicines, and ultraviolet absorbers, on the skin. Therefore, it is a dosage form suitable for skin external preparations, and is widely used in foundations or skin creams in the field of cosmetics. [0003] In conventional water-in-oil emulsified cosmetics, the oil constituting the external phase is often stabilized by gelling the oil constituting the outer phase, immobilizing water droplets, and reducing the frequency of collisions between particles, so the viscosity...

Claims

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Application Information

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IPC IPC(8): A61K8/31A61Q1/02A61Q17/04A61K8/44A61K8/891A61K8/06A61K8/19A61K8/29A61K8/37A61K8/894
CPCA61K8/19A61K8/29A61K8/31A61K8/37A61K8/894A61Q1/02A61Q1/12A61Q17/04A61K8/342A61K8/375A61K8/732A61K8/064A61K8/0241A61Q19/00A61K2800/612A61K2800/651A61K2800/10A61K2800/614A61K2800/48A61K8/062A61K8/445A61K8/73A61K8/891A61Q1/00A61K8/361A61K8/44
Inventor 佐藤由纪子池田智子
Owner SHISEIDO CO LTD
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