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Sunscreen cosmetic

A technology of cosmetics and titanium oxide, applied in the field of sunscreen cosmetics, can solve the problems of low PFA, insufficient ultraviolet absorption, etc., and achieve the effect of soft use feeling

Inactive Publication Date: 2013-01-09
SHISEIDO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In sunscreen cosmetics containing diethylaminohydroxybenzoyl hexyl benzoate in this way, various other ingredients are combined to suppress its staining (staining) properties, but the presence of diethylaminohydroxybenzoyl benzene Hexyl formate (such as Uvinul APlus (trade name)) cannot be mixed with cosmetics sold in the United States. On the other hand, if diethylaminohydroxybenzoyl hexyl benzoate is not mixed, the ultraviolet absorption in the UVA region will be reduced. Insufficient intake, resulting in the problem of low PFA

Method used

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  • Sunscreen cosmetic
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Examples

Experimental program
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Effect test

Embodiment

[0054] Next, examples are given to illustrate the present invention more specifically, but the present invention is not limited to these examples. In addition, unless otherwise noted, the compounding quantity shows the mass % with respect to the total amount.

[0055] Water-in-sunscreen oil-type emulsion cosmetics (emulsion-like sunscreens) having compositions shown in Tables 1 and 2 below were produced by a usual method. For the cosmetics of each example, the washing-removing effect on stains was measured by the following method.

[0056] "Measurement method of staining (dyeability)"

[0057] like figure 1 Apply the sample thickly to the wrist as shown, transfer it to the center of a broad cotton cloth (transfer amount is about 0.06g), leave it indoors for a day, and use a normal laundry detergent (*1) Washing, visually judge its washing off.

[0058] *1: Attack (Kao Corporation)

[0059]

[0060] ◯: Washed off to such an extent that no staining was visually confirmed...

Embodiment 8

[0074] Example 8: W / O type sunscreen cosmetics (sunscreen)

[0075]

Embodiment 9

[0076] Example 9: W / O type sunscreen cosmetics (sunscreen)

[0077]

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PUM

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Abstract

Disclosed is a sunscreen cosmetic that does not contain diethylamino hydroxybenzoyl hexyl benzoate, absorbs a wide range of wavelengths of ultraviolet rays across the UVA and UVB regions, and also does not cause staining (dyeing) through secondary adhesion to clothing. The sunscreen cosmetic is characterized by containing: 2-hydrdoxy-4-methoxybenzophenone, 2-ethylhexyl p-methoxycinnamate, octocrylene, a volatile hydrocarbon oil, and zinc oxide and / or titanium oxide that has undergone hydrophobizing treatment other than with a fatty acid.

Description

technical field [0001] The invention relates to a sunscreen cosmetic. More specifically, it relates to a sunscreen cosmetic that suppresses staining (staining) caused by secondary adhesion to clothing. Background technique [0002] The important ultraviolet wavelength regions absorbed by sunscreen cosmetics are UV-A region (320~400nm) and UV-B region (290~320nm). It is also believed that although ultraviolet rays in the UV-A region darken the skin, they do not cause sunburn and accelerate skin aging like ultraviolet rays in the UV-B region. [0003] However, in recent years, it has been gradually understood that ultraviolet rays in the UV-B region stay on the relatively superficial part of the skin, while ultraviolet rays in the UV-A region reach the deep part of the skin, causing skin aging as well as skin cancer. In this way, the requirement for sunscreen cosmetics to absorb ultraviolet rays in the UV-A region is gradually increasing. [0004] Hexyl diethylaminohydroxyb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/35A61K8/27A61K8/29A61K8/31A61K8/37A61K8/40A61Q17/04
CPCA61K8/27A61K8/31A61K8/35A61K8/37A61Q17/04A61K8/40A61K8/29
Inventor 石田佳保里
Owner SHISEIDO CO LTD
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