Water-in-oil type sunscreen cosmetic

A technology of water-in-oil type cosmetics, which is applied in the direction of cosmetics, cosmetic preparations, dressing preparations, etc. It can solve the problems of cosmetics that are difficult to spread, and achieve the effect of easy spreading, not easy to white, and excellent usability

Active Publication Date: 2010-07-14
TOKIWA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a method makes it difficult to spread cosmetics, so this method cannot be said to be effective in consideration of the usability of cosmetics

Method used

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  • Water-in-oil type sunscreen cosmetic
  • Water-in-oil type sunscreen cosmetic
  • Water-in-oil type sunscreen cosmetic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～10

[0056] Water-in-oil type sunscreen cosmetics having the compositions shown in Tables 1 to 2 were prepared by the following production methods, respectively. The items "emulsion stability", "spreading", "non-greasy", and "whitening" of the obtained water-in-oil type sunscreen cosmetics were evaluated and judged by the test methods and judgment criteria shown below. The judgment results of these items are shown in Tables 1-2. In addition, unless otherwise specified, the unit of each component in the table is mass % based on the total amount of cosmetics.

[0057] Table 1

[0058]

[0059] Table 2

[0060]

[0061]

[0062] (1) Mix ingredients 2, 3, 6-10 uniformly according to the ratios shown in Table 1-2 with a three-roll machine to obtain mixture A.

[0063] (2) On the other hand, components 1, 4, 5, and 11-14 (heating and melting solid fatty acids) were uniformly mixed in the proportions shown in Tables 1-2 with a homomixer to obtain mixture B.

[0064] (3) Mix th...

Embodiment 8

[0130] (Example 8) sunscreen

[0131] (ingredients) (mixing ratio (mass%))

[0132] 1. Methyl polytrimethicone 20.0

[0133] 2. Particulate Titanium Dioxide 10.0

[0134] 3. Microparticle zinc oxide 12.0

[0135] 4. Diisostearyl malate 2.0

[0136] 5. Silicone branched polyglycerol modified silicone ＊2 3.0

[0137] 6. Isostearic acid 0.5

[0138] 7. Polymethyl methacrylate 5.0

[0139] 8. KSG-16 9.0

[0140] 9. KP-545 7.0

[0141] 10. Water 25.3

[0142] 11. Glycerin 5.0

[0143] 12.1, 3-BG 1.0

[0144] 13. Methylparaben 0.2

[0145]

[0146] (1) Components 1 to 3 were uniformly mixed with a three-roll machine to obtain a mixture A.

[0147] (2) On the other hand, components 4 to 9 were uniformly mixed with a homomixer to obtain a mixture B.

[0148] (3) Mix the mixture A and mixture B obtained above with a homomixer to obtain an oil phase mixture C.

[0149] (4) On the other hand, component 13 was heated and dissolved in component 12, and components 10 a...

Embodiment 9

[0153] (Example 9) (makeup primer)

[0154] (ingredients) (mixing ratio (mass%))

[0155] 1. Decamethylcyclopentasiloxane 23.0

[0156] 2. Phenyl trimethicone 4.0

[0157] 3. Particulate Titanium Dioxide 2.0

[0158] 4. Particulate Zinc Oxide 10.0

[0159] 5. Triisocapryl 7.0

[0160] 6. Silicone branched polyglycerol modified silicone ＊3 2.0

[0161] 7. Polyether modified silicone ＊4 1.5

[0162] 8. Isostearic acid 0.5

[0163] 9. Polymethyl methacrylate 6.0

[0164] 10. KSG-16 6.0

[0165] 11. Octyl Methoxycinnamate 6.0

[0166] 12. Talc 1.0

[0167] 13. Mica 1.0

[0168] 14. Water 21.8

[0169] 15. Glycerin 2.0

[0170] 16. DPG 4.0

[0171] 17.1, 3-BG 2.0

[0172] 18. Methylparaben 0.2

[0173]

[0174] (1) Mix components 2-5 uniformly with a three-roll machine to obtain a mixture A.

[0175] (2) On the other hand, components 1 and 6 to 13 were uniformly mixed with a homomixer to obtain a mixture B.

[0176] (3) Mix the mixture A and ...

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Abstract

The present invention provides a water-in-oil type sunscreen cosmetic with superior emulsion stability, which hardly whiten the skin when applied, is easy to spread, barely oily, and have excellent applicability. The water-in-oil type sunscreen cosmetic comprises particulate zinc oxide subjected to surface hydrophobizing treatment and / or particulate titanium dioxide subjected to surface hydrophobizing treatment, silicone branched type polyglycerin-modified silicone and isostearic acid, wherein the content of the silicone branched type polyglycerin-modified silicone is 1.5-10% by mass of the total amount of the cosmetic, and the content of the isostearic acid is 0.1-10% by mass of the total amount of the cosmetic.

Description

technical field [0001] The present invention relates to water-in-oil sunscreen cosmetics. Background technique [0002] Since sunscreen cosmetics are required to withstand sweat and water resistance in seawater, the mainstream of sunscreen cosmetics is water-in-oil cosmetics. Sunscreen cosmetics contain organic UV absorbers (cinnamic acid-based compounds, benzophenone-based compounds, etc.) and inorganic UV-scatterers (fine-particle titanium dioxide, fine-particle zinc oxide, etc.) as ingredients to prevent UV rays from damaging the skin. [0003] In recent years, cosmetics that are milder to the skin have been sought, and therefore, non-chemical sunscreen cosmetics that do not contain organic UV absorbers have attracted attention. In such sunscreen cosmetics, a desired ultraviolet shielding effect is obtained by increasing the amount of the above-mentioned inorganic ultraviolet scattering agent added. [0004] By finely dispersing microparticles of titanium dioxide, micro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/892A61K8/06A61Q17/04A61K8/36
CPCA61K8/27A61K8/06A61K8/361A61K8/11A61Q17/04A61K2800/413A61K8/064A61K8/894A61K8/29A61K8/892
Inventor 三井大辅
Owner TOKIWA CORP
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