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Natural high-SPF sun-screening agent, preparation method and application thereof in cosmetics

A sunscreen, natural technology, applied in cosmetics, cosmetics, pharmaceutical formulations and other directions, can solve the problems of low content of active substances in pure natural plant sunscreens, weak UV absorption capacity of anthocyanins, and difficult to commercialize sunscreens, etc., to protect the skin barrier. , good application prospects, the effect of protecting light aging

Active Publication Date: 2021-01-15
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure natural plant sunscreens have low content of active substances and insufficient purity. At the same time, anthocyanins have weak ultraviolet absorption capacity and relatively low extinction coefficient, so it is difficult to convert them into commercial sunscreens. They are added to sunscreens as independent natural sunscreens. application limited
At present, there is no pure natural sunscreen that can increase SPF to above 15

Method used

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  • Natural high-SPF sun-screening agent, preparation method and application thereof in cosmetics
  • Natural high-SPF sun-screening agent, preparation method and application thereof in cosmetics
  • Natural high-SPF sun-screening agent, preparation method and application thereof in cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064]Example 1. Preparation of natural high SPF sunscreen of the present invention

[0065]1. Extraction of cellulose

[0066](1) The straw is crushed and sieved through 40 mesh, washed with water, and dried at 60°C;

[0067](2) Straw powder and acid mixture (formic acid: acetic acid: water = 30:60:10, v / v / v) are mixed at a mass ratio of 1:20, a catalytic amount of catalyst dilute hydrochloric acid is added, and the reaction is heated at 90°C for 4 hours;

[0068](3) Vacuum filtration of the reaction solution to obtain a solid filter residue, wash with water to neutrality, and dry to obtain crude cellulose;

[0069](4) Add the crude cellulose to the alkaline solution (5% hydrogen peroxide solution) with pH=12, the mass ratio of the crude cellulose to the alkaline solution is 1:30, reflux, stir, and react at 60°C for 3h ;

[0070](5) Filter to obtain solid filter residue, wash with water to neutrality, and dry to obtain cellulose powder.

[0071]2. Extraction of anthocyanins

[0072](1) Wash the purple cab...

Embodiment 2

[0079]Example 2: Making lipstick using sunscreen of the present invention

[0080]1. The percentage of raw materials: the sunscreen prepared in Example 1 is 5%, olive oil 50%, petrolatum 3%, ethylhexyl palmitate 7%, tridecyl trimellitate 4%, di-diglycerin Polyacyl adipate -28%, ozokerite 10%, microcrystalline wax 10%, beeswax 3%.

[0081]2. Preparation method: add sunscreen to soft oil (soft oil is made of olive oil, petrolatum, ethylhexyl palmitate, tridecyl trimellitate, bis-diglycerol polyacyl adipate-2 After it is uniformly dispersed, add it to hard oil (hard oil is composed of ozokerite, microcrystalline wax and beeswax); stir at 120°C; pour it into a mold after it is completely dissolved, and cool and solidify to obtain a sunscreen lipstick.

Embodiment 3

[0082]Example 3: Making lip gloss using sunscreen of the present invention

[0083]1. The percentage of raw materials: 5% of the sunscreen prepared in Example 1, 85% of olive oil, and 10% of beeswax.

[0084]2. Preparation method: add sunscreen to olive oil, add beeswax after evenly dispersed; heat at 120°C and stir evenly; after it is completely dissolved, pour it into a mold, and cool to obtain a sunscreen lip gloss.

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Abstract

The invention provides a natural high SPF sun-screening agent and a preparation method and application thereof in cosmetics, and belongs to the technical field of cosmetics. The natural high SPF sun-screening agent is cellulose adsorbing anthocyanin. According to the sun-screening agent, no commercial sun-screening agent is added, the excellent anti-ultraviolet effect can be obtained only throughpure natural substances, the SPF value of the sun-screening agent is as high as 30 or above and is remarkably higher than that of anthocyanin and cellulose which are independently used, and the sun-screening agent has synergistic sun-screening and anti-ultraviolet effects. Meanwhile, cosmetics such as lipsticks and lip gloss and the like prepared from the sun-screening agent can protect lips fromlight aging, pigments are not absorbed transdermally and are very easy to wipe, application of cleaning products can be reduced, and skin barriers can be protected. The natural high SPF sun-screeningagent disclosed by the invention is safe, healthy and good in effect, and has a good application prospect.

Description

Technical field[0001]The invention belongs to the technical field of cosmetics, and specifically relates to a natural high SPF sunscreen agent, a preparation method thereof, and application in color makeup.Background technique[0002]Lip skin is the excessive tissue that the human body's normal skin migrates to the mucous membrane, called lip red. Lip skin can be divided into five layers from top to bottom: skin, superficial fascia, muscle layer, submucosa, and mucosa. Lip skin occupies an important position in human physiology and psychology, such as eating, drinking, vocalizing, smiling, and beautiful. With the improvement of people's living standards, lip care has occupied an important position in daily care. The fine lines, elasticity, gloss and fullness of the lips are all important evaluation indicators for evaluating the beauty of the lips. Photoaging is an important factor in skin aging. Ultraviolet rays damage the lip skin, including photoaging, actinic cheilitis, and maligna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/60A61K8/9789A61K8/73A61Q17/04A61Q1/06A61Q1/04D21C3/00D21C3/02
CPCA61K8/602A61K8/9789A61K8/731A61Q17/04A61Q1/06A61Q1/04D21C3/02D21C3/003A61K2800/805
Inventor 李利熊丽丹何海伦唐洁
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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