Preparing method of composition with natural sun screen performance

Abstract

The invention provides a preparing method of a composition with natural sun screen performance. The preparing method comprises the steps that A-phase raw materials are sterilized, the temperature is adjusted to 75-85 DEG C, and stirring is conducted until the materials are dissolved and the mixture becomes transparent, wherein the A-phase raw materials comprise water and carbomer; B-phase raw materials are heated to 80-90 DEG C and stirred evenly, wherein the B-phase raw materials comprise one or two of glycerol monostearate and PEG-100 stearate and one or two of cetearyl olivate and sorbitanolivate; the B-phase raw materials and the A-phase raw materials are mixed evenly at 75-85 DEG C; homogeneous emulsification is conducted; C-phase raw materials are added and stirred evenly, wherein the C-phase raw materials comprise triethanolamine, a dendrobium officinale extract, a ginger extract, a magnoliae officmalis cortex extract and an angelicae sinensis radix extract. The preparing method is simple and easy to implement, and supercritical CO2 is adopted to extract natural plants, so that the extraction effect is good, and the preparing method is economical and environmentally friendly and saves energy. The prepared composition has high safety and high sun screen capacity.

Description

technical field [0001] The invention relates to a sunscreen product, in particular to a preparation method of a composition with natural sunscreen performance. Background technique [0002] In recent decades, the continuous destruction of the ozone layer has led to a gradual increase in the amount of ultraviolet radiation. As we all know, ultraviolet rays are divided into three categories, including short-wave ultraviolet rays (UVC) at 200-200nm, medium-wavelength ultraviolet rays (UVA) at 280-320nm, and long-wavelength ultraviolet rays (UVB) at 320-400nm. UVC can be completely absorbed by the atmosphere, while UVA and UVB through the atmosphere pose a hazard to human health, especially UVB can lead to skin pigmentation, keratin growth, photoaging, and even skin cancer and immune suppression of the body, excessive UVA ultraviolet rays Light exposure can promote the formation of wrinkles and even cause phototoxic reactions. How to reduce the occurrence of skin diseases effe...

AI Technical Summary

Problems solved by technology

[0008] Disadvantages of the prior art: First, according to the mechanism of sun protection, sunscreens are mainly divided into chemical sunscreens and physical sunscreens

[0010] Thirdly, traditional synthetic organic sunscreens cannot relieve and repair the skin after sun exposure. The sunscreen ingredients extracted from natural plants not only have sun protection ability, but also have a high SPF. At the same time, other components have synergistic effects

With the increase of total flavonoid content, the total antioxidant capacity has a rising trend, but the correlation is not significant, that is, the correlation between total flavonoid content and total antioxidant capacity is not like the correlation between total phenols and antioxidant capacity The obvious sexual performance shows that some flavonoids are not unique in their contribution to antioxidant capacity. The synergistic effect of organic acids, polysaccharides and other trace elements together completes a comprehensive antioxidant capacity of the extract.

[0013] Fourth, organic synthetic sunscreens have some disadvantages in compatibility and sticky feeling in use when preparing sunscreen products. Brings an unpleasant feeling, especially in summer, and sunscreen products made of natural sunscreens, whether they are water-in-oil or oil-in-water products, have better stability and skin feel

[0014] Fifth, traditional organic solvents bring solvent residues and solvent side effects, solvent recovery is troublesome and not conducive to energy saving and environmental protection

Although the steam distillation method requires less one-time investment in production equipment, the yield is low and because the extraction is carried out at a temperature above 100°C, the temperature is high. For heat-sensitive substances, secondary chemical reactions are prone to occur, and the extracted components are often not available. It represents the true composition of the original plant extract, but there are problems such as long extraction time and low yield; moreover, due to high-temperature boiling, the relevant chemical components in the remaining medicinal residues also undergo secondary chemical reactions, which cannot completely represent the true composition of the remaining part. The chemical composition and physical properties have also changed greatly, and its reuse is also limited

This is a limitation imposed by traditional extraction methods

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