Sunscreen composition containing composite solid powder and polymer film-forming agent

A technology of solid powder and composition, which is applied in the field of sunscreen composition and composite solid powder containing composite solid powder and polymer film-forming agent, which can solve problems such as agglomeration, hard touch, and inability to push away smoothly

Active Publication Date: 2017-05-10
GUANGZHOU KENENG COSMETICS RES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such composite solid powders are still deficient because they exhibit a hard touch and cannot be pushed away smoothly, causing agglomeration

Method used

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  • Sunscreen composition containing composite solid powder and polymer film-forming agent
  • Sunscreen composition containing composite solid powder and polymer film-forming agent
  • Sunscreen composition containing composite solid powder and polymer film-forming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Example 1 Preparation of Composite Solid Powder

[0081] (1) Prepare a dry physical sunscreen.

[0082] The solid powder of the physical sunscreen to be coated is dried in a desiccator at 105° C. for 4 hours or more.

[0083] (2) Form a mixture with skin feel improving agent

[0084] Put the solid powder of the physical sunscreen prepared in step (1) into a blender, and stir and mix it with the skin feel improving agent in the blender at a high speed, thus obtaining a solid powder composed of a physical sunscreen and a skin feel improving agent .

[0085] (3) Use a surface treatment agent to coat the solid powder

[0086] The surface treatment agent is sprayed onto the composite solid powder obtained in step 2), and then mixed and dispersed for 5-20 minutes, preferably 8-15 minutes, to prepare a composite solid powder.

Embodiment 2

[0087] Example 2 Composite solid powder

[0088] Table 1 Composite solid powder

[0089]

Embodiment 3

[0090] Embodiment 3 smoothness test

[0091] Experimental method, with the composite solid powder prepared in Example 2, each 0.015g is applied on the artificial leather respectively, and the rheometer is placed on the artificial leather to which the powder has been applied respectively, so as to evaluate the smoothness of each powder ( The solid powder of each combination was measured three times, and the smoothness was averaged). Table 2 shows the evaluation results.

[0092] Table 2 Smoothness experiment

[0093] Composite solid powder smoothness A 98 B 101 C 103 Comparative example (commercially available) 151

[0094]As shown in Table 2 above, the comparative example showed a value higher than 140, which made the skin feel rough, indicating that the commercially available cosmetic composition of triethoxyoctylsilane-coated titanium dioxide powder had a bad touch. However, Composite Solid Powder A, Composite Solid Powder B, Composite ...

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Abstract

The invention belongs to the field of cosmetics and relates to composite solid powder and sunscreen composition containing the same and a polymer film-forming agent. The composite solid powder contains a physical sunscreen, a skin texture improver and a surface treating agent. The smoothness of the cosmetics can be improved remarkably by adding the skin texture improver, and light skin texture is realized. The sunscreen composition contains the composite solid powder and the polymer film-forming agent such as a C30-38 olefin/isopropyl maleate/MA copolymer and the like, cosmetics containing the composition can be applied to skin surface naturally and smoothly to endow skin with smooth and soft texture and durable makeup holding capacity, and more importantly, the SPF (sun protection factor) of the sunscreen can be increased remarkably.

Description

technical field [0001] The invention belongs to the field of cosmetics and relates to a composite solid powder and a sunscreen composition comprising the composite solid powder and a polymer film-forming agent. Background technique [0002] In recent years, people have a growing need for sunscreen cosmetics. Human skin is damaged by sunlight ultraviolet rays due to long-term exposure to the external environment, which causes skin photoaging problems such as increased wrinkles, melanin deposition, and decreased elasticity. Desquamation, erythema, dermatitis, skin cancer and other skin diseases will occur. [0003] In order to protect the skin from ultraviolet rays, in recent years, many organic ultraviolet absorbers have been developed to protect against UV-A (320-400nm) or UV-B (290-320nm) radiation. Usually used alone or in combination in widely known cosmetics, such as organic UV-A and UV-B ultraviolet absorbers exist in sunscreen cosmetics combination to protect human sk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/895A61K8/81A61K8/58A61K8/49A61K8/44A61K8/37A61K8/34A61K8/29A61K8/27A61K8/19A61Q17/04
CPCA61K8/19A61K8/27A61K8/29A61K8/34A61K8/37A61K8/445A61K8/4946A61K8/4966A61K8/585A61K8/8164A61K8/895A61K2800/5922A61Q17/04
Inventor 向琼彪黄建珍刘德海张伟杰张楚标
Owner GUANGZHOU KENENG COSMETICS RES CO LTD
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