Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of low irritation type multiple emulsification sunscreen cosmetics and preparation method thereof

A cosmetic and low-irritation technology, which is applied in the field of low-irritation multi-emulsion sunscreen cosmetics and its preparation, can solve the problems of small molecular weight of sunscreen, easy penetration into the stratum corneum, and harm, so as to improve the sunscreen effect, prevent wrinkle aggregation, reduce Irritant and Potentially Harmful Effects

Active Publication Date: 2021-12-07
HUANAN IND TECH RES INST OF ZHEJIANG UNIV +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in oil-in-water or water-in-oil systems, most sunscreens are oily substances with high polarity and small molecular weight, which are more likely to penetrate deep into the stratum corneum, causing irritation or other potential hazards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of low irritation type multiple emulsification sunscreen cosmetics and preparation method thereof
  • A kind of low irritation type multiple emulsification sunscreen cosmetics and preparation method thereof
  • A kind of low irritation type multiple emulsification sunscreen cosmetics and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 7

[0032] This embodiment provides a method for preparing a low-irritation multiple emulsified sunscreen cosmetic, the method comprising the following steps:

[0033] (1) Heat the oil-phase sunscreen until completely dissolved, cool to below 40°C, and confirm that no crystals are precipitated to form oil phase A; the oil-phase sunscreen is 0.5 parts of ethylhexyl methoxycinnamate and 0.5 parts Mixture of cetyl ethylhexyl ester.

[0034] (2) Add the preservative and chelating agent into water, and mix uniformly to form a water phase; wherein the chelating agent is 0.02 part of disodium EDTA, the preservative is 0.1 part of phenoxyethanol and 0.05 part of ethylhexylglycerin.

[0035] (3) Add the emulsifier into the water phase of step (2), heat to dissolve, stir evenly, cool to below 40°C, and then add the oil phase A of step (1) into the water phase under homogeneous conditions , to form colostrum in which the emulsifier is a mixture of 0.8 parts PEG-60 hydrogenated castor oil an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a low-irritant multi-emulsion sunscreen cosmetic, comprising the following components in parts by weight: 30-60 parts of colostrum, 10-20 parts of hydrophobically modified titanium dioxide or zinc oxide, 10-40 parts of grease, and silicon gel 1-5 parts of glue, 1-10 parts of silicone resin film-forming agent. The sunscreen cosmetic oil of the present invention has the structure of oil-in-water (O / W / O) or oil-in-water-silicon oil (O / W / Si), so that the oil-phase sunscreen agent is wrapped in the innermost layer, and the outermost layer is added film former. In this structure, on the one hand, the innermost oil phase sunscreen agent can be spread on the outermost phase that has been formed into a film, so that the sunscreen agent can be evenly distributed on the skin surface without wrinkles and aggregation, thereby improving the overall sunscreen effect; On the one hand, the film-formed outermost phase can also prevent the oil phase sunscreen agent from penetrating into the stratum corneum, thereby reducing the irritation and potential harm of the oil phase sunscreen agent, and improving the sunscreen effect and safety performance.

Description

technical field [0001] In the field of cosmetics, the present invention particularly relates to a low-irritation multi-emulsion sunscreen cosmetic and a preparation method thereof. Background technique [0002] Most of the sunscreen cosmetics on the market are generally oil-in-water or water-in-oil systems, and approved sunscreen oils such as ethylhexyl methoxycinnamate are either internal phase or external phase. Such a production process It has the characteristics of convenient and simple operation. [0003] However, in oil-in-water or water-in-oil systems, most sunscreens are oily substances with high polarity and small molecular weight, which are more likely to penetrate deep into the stratum corneum, causing irritation or other potential hazards. [0004] Therefore, it is an urgent problem to be solved in this field to seek a kind of low irritation type multiple emulsification sunscreen cosmetics. Contents of the invention [0005] The present invention utilizes the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/06A61K8/27A61K8/29A61K8/37A61K8/44A61K8/58A61K8/891A61Q17/04
CPCA61K8/066A61K8/27A61K8/29A61K8/37A61K8/44A61K8/585A61K8/891A61K2800/72A61Q17/04
Inventor 钟晓明何杨鹏
Owner HUANAN IND TECH RES INST OF ZHEJIANG UNIV