Modified pearlescent powder, preparation method thereof and cosmetics

A technology of pearlescent powder and cosmetics, which is applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc. It can solve the problems of pearlescent powders not shining enough, not easy to apply evenly, and poor makeup retention, so as to improve spreadability and high gloss , good makeup effect

Pending Publication Date: 2021-06-01
SHANGHAI CO FUN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional pearlescent powders also have some problems, such as: pearlescent powders with a particle size less than or equal to 60 microns are not shiny enough, and pearlescent powders with a particle size greater ...

Method used

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  • Modified pearlescent powder, preparation method thereof and cosmetics
  • Modified pearlescent powder, preparation method thereof and cosmetics
  • Modified pearlescent powder, preparation method thereof and cosmetics

Examples

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preparation example Construction

[0037] The present invention also provides a method for preparing the modified pearlescent powder, comprising: mixing the pearlescent powder, fluorine-containing silane coupling agent and lauroyl lysine powder, and heating to obtain the modified pearlescent powder.

[0038] Since the alkoxy group of the fluorine-containing silane coupling agent will be hydrolyzed to form silanol in the air, so, in one embodiment, the pearlescent powder and lauroyl lysine powder are mixed first, and then the fluorine-containing silane coupling agent is added agent, to avoid premature hydrolysis of the fluorine-containing silane coupling agent and connect to the surface of the pearlescent powder, affecting the coating effect of the lauroyl lysine powder on the surface of the pearlescent powder.

[0039] At the same time, the lauroyl lysine powder is randomly coated on the surface of the pearlescent powder, and then the fluorine-containing silane coupling agent reacts with the uncoated surface, an...

Embodiment 1

[0055] Mix 30g lauryl lysine powder with lamellar structure and 1kg pearlescent powder (10μm-60μm, silvery white, mica substrate, titanium dioxide cover layer), and then add 10g perfluorooctyl triethoxy The base silane was evenly mixed, heated to 110° C. and kept for 2 hours to obtain a modified pearlescent powder.

[0056] like figure 1 As shown, in the modified pearlescent powder obtained in this example, lauroyl lysine powder with a lamellar structure covers the surface of the pearlescent powder. In addition, in the modified pearlescent powder, the fluorine-containing silane coupling agent is connected to the pearlescent powder through a covalent bond, and part of the fluorine-containing silane coupling agent associates with each other and forms a network-like film, in which the lamellar laurel The acyllysine powder and the fluorine-containing silane coupling agent are interlacedly distributed.

[0057] The pearlescent powder of this embodiment and the modified pearlescen...

Embodiment 2

[0061] The only difference between Example 2 and Example 1 is that the particle size of the pearlescent powder in Example 2 is 30 μm-150 μm.

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Abstract

The invention relates to modified pearlescent powder and a preparation method thereof. The modified pearlescent powder comprises pearlescent powder, lauroyl lysine powder covering the surface of the pearlescent powder and a fluorine-containing silane coupling agent connected to the pearlescent powder through a covalent bond. The modified pearlescent powder disclosed by the invention is softer and more skin-friendly, and has hydrophobic and oleophobic effects at the same time. The invention also relates to a cosmetic, the cosmetic comprises the modified pearlescent powder, and the modified pearlescent powder can effectively improve the spreadability of the cosmetic, so that the cosmetic can be better and uniformly smeared on the skin, and the makeup holding property is better; meanwhile, the modified pearlescent powder can be directionally distributed in the cosmetic disclosed by the invention to form a mirror surface effect, so that the cosmetic disclosed by the invention shows higher glossiness.

Description

technical field [0001] The invention relates to the technical field of cosmetics, in particular to a modified pearlescent powder, a preparation method thereof, and cosmetics. Background technique [0002] Pearlescent powder is widely used in the cosmetics industry because of its unique luster, and is the most important colorant in beauty cosmetics for the face, lips, eyes and nails. However, traditional pearlescent powders also have some problems, such as: pearlescent powders with a particle size less than or equal to 60 microns are not shiny enough, and pearlescent powders with a particle size larger than 60 microns are not skin-friendly and soft enough. In addition, all pearlescent powders are hydrophilic and lipophilic, which makes it difficult for traditional cosmetics to spread evenly on the skin and has poor makeup retention. Contents of the invention [0003] Based on this, it is necessary to address the above problems and provide a modified pearlescent powder that...

Claims

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Application Information

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IPC IPC(8): A61K8/69A61K8/02A61K8/19A61K8/25A61K8/26A61K8/29A61K8/44A61Q1/00A61Q1/02
CPCA61K8/69A61K8/0258A61K8/25A61K8/26A61K8/29A61K8/19A61K8/44A61Q1/02A61Q1/00A61K2800/436A61K2800/612A61K2800/622A61K8/442A61K2800/412A61K8/0241A61K8/022A61K8/0254A61K8/42A61K8/70A61K2800/60A61K2800/805A61Q1/12
Inventor 谢旭刘思雨秦纪华亢荣敏
Owner SHANGHAI CO FUN BIOTECH
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