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W/O emulsified cosmetic, preparation method thereof, and application of quaternary ammonium salt-18 bentonite

A cosmetic and emulsification type technology, applied in the field of cosmetic products and preparation, can solve the problems of unstable emulsification and inability to solve the problem of product stability, and achieve the effect of enhancing the stability of emulsification and solving the instability

Inactive Publication Date: 2015-01-21
SHENZHEN SANDA COSMETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Emulsification technology is the most important application in cosmetic production, but for W / O emulsified cosmetic products added with powder, the existing emulsification technology cannot solve the product stability problem
Because the reasons for unstable cosmetic products are many and complex, emulsification is thermodynamically unstable, so this problem has not been solved by decades of research and development in the field of cosmetic emulsification technology

Method used

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  • W/O emulsified cosmetic, preparation method thereof, and application of quaternary ammonium salt-18 bentonite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In the above, the thickener includes glyceryl behenate / eicosate; the emulsifier is at least one of sorbitan isostearate and sorbitan sesquioleate.

[0034] In this example, using the above-mentioned glycerol behenate / eicosate as a thickener can enhance the emulsion stability of a W / O emulsified cosmetic product containing a large amount of powder. In addition, glyceryl behenate / eicosate can strengthen the skin's barrier function and delay skin aging.

[0035] Under normal circumstances, if the cosmetics only use the emulsifier and thickener provided in this embodiment, the emulsified form of the above-mentioned components is two kinds of liquids that do not mix with each other, so it is easy to form a small spherical uniform fine The state of being dispersed in another liquid, this state is an unstable boundary in thermodynamics. However, by additionally adding quaternary ammonium-18 bentonite as a gelling agent, the above problems can be effectively solved.

Embodiment 2

[0037] Among the above, the oils include Cyclomethicone, Dimethicone, Butylene Glycol Dicaprylate / Dicaprate, Trimethylsiloxysilicate, Isopropyl Myristate at least one of esters.

[0038] The wax includes cetyl dimethicone.

[0039] Described water phase also comprises antifreezing agent, and as a kind of cheap selection, antifreezing agent can select sodium chloride for use, thereby reduces its coagulation temperature by increasing sodium chloride in water; Described humectant comprises glycerol, dipropylene glycol At least one of; the water-soluble preservatives include methyl p-hydroxybenzoate;

[0040] The powders include at least two of titanium dioxide, microparticle titanium dioxide, zinc oxide, microparticle zinc oxide, iron oxide, and microparticle iron oxide.

[0041] The powders of titanium oxide and iron oxide in this embodiment are raw materials that are relatively easy to obtain in the existing market, and they belong to the most stable powder raw materials in t...

Embodiment 3

[0043] The oil phase also includes a preservative; the preservative includes propylparaben.

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Abstract

The invention provides a W / O emulsified cosmetic, a preparation method thereof, and application of quaternary ammonium salt-18 bentonite. By adding quaternary ammonium salt-18 bentonite (QUATERNIUM-18 BENTONITE) into the W / O emulsified cosmetic product containing oil phases, water phases and powder, thickening can be realized, and accordingly the cosmetic can maintain long-term stability and does not cause oil-water separation or powder coacervation phenomenon, the emulsification stability is enhanced, and the problem that powder added W / O emulsified cosmetics are always unstable can be solved.

Description

technical field [0001] The invention relates to the field of cosmetic products and preparation, in particular to a W / O emulsified cosmetic and a preparation method thereof, and the application of quaternary ammonium salt-18 bentonite. Background technique [0002] Over the years, there have been many products in the cosmetics market that are W / O emulsified products with powder added, such as well-known BB cream, segregation cream, liquid foundation and so on. However, the existing W / O emulsified cosmetic products that add powder also have unstable defects, mainly because this type of product will produce oil-water separation or powder coagulation soon after it is put on the market, which not only affects consumption. Those who use this kind of products normally have caused adverse effects and even economic losses to the production enterprises. [0003] However, due to the great demand in the market for such products, they are widely welcomed by consumers. In the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/06A61K8/92A61K8/26A61Q1/02A61Q19/00
Inventor 杨增松
Owner SHENZHEN SANDA COSMETICS
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