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A long-acting moisturizing sunscreen cosmetic and its preparation method

A long-lasting moisturizing and cosmetic technology, applied in cosmetic preparations, cosmetics, cosmetic preparations, etc., can solve the problems of poor durability, inability to achieve long-lasting moisturizing, easy water loss, etc., to prevent water loss and achieve good sunscreen effect. , the effect of easy process control

Active Publication Date: 2021-01-12
浙江伊瑟奇医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages such as unsatisfactory sunscreen and moisturizing effects, poor durability, etc.
[0007] To sum up, among the currently commonly used cosmetics, moisturizing cosmetics are prone to water loss, unable to achieve the purpose of long-term moisturizing, and have poor sun protection effects, while sunscreen cosmetics have poor moisturizing properties, and it is difficult to have both sun protection and moisturizing effects, so the development of A cosmetic with both moisturizing and sunscreen effects is of great significance

Method used

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  • A long-acting moisturizing sunscreen cosmetic and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0031] (1) Take fresh witch hazel branches, grind them in a plant grinder, and then grind them in supercritical CO 2 The crude extract of tannin was obtained, and the crude extract was added to water to prepare a feed liquid with a mass fraction of 17%, and then membrane separation was carried out through a hollow sulfonated polysulfone fiber membrane to obtain purified witch hazel tannin ; The pressure of supercritical extraction is 29MPa, the temperature is 43℃, supercritical CO 2 The flow rate is 11mL / min, the extraction time is 72min; the transmembrane pressure difference of membrane separation is 0.13MPa, the temperature is 38°C, and the flow velocity of feed liquid on the membrane surface is 2.3m / s;

[0032] (2) Dissolve chitosan in an acetic acid solution with a mass concentration of 2%, add colloidal anhydride powder, adjust the pH value to 8, react for 6.5 hours, precipitate, filter, and dry to obtain hydrophilic modified chitosan, Then dissolve the hydrophilic modif...

Embodiment 2

[0040] (1) Take fresh witch hazel branches, grind them in a plant grinder, and then grind them in supercritical CO 2 The crude extract of tannin was obtained, and the crude extract was added to water to prepare a feed liquid with a mass fraction of 16%, and then membrane separation was carried out through a hollow sulfonated polysulfone fiber membrane to obtain purified witch hazel tannin ; The pressure of supercritical extraction is 28MPa, the temperature is 40℃, supercritical CO 2 The flow rate is 8mL / min, the extraction time is 80min; the transmembrane pressure difference of membrane separation is 0.1MPa, the temperature is 36°C, and the flow velocity of feed liquid on the membrane surface is 2.2m / s;

[0041] (2) Dissolve chitosan in an acetic acid solution with a mass concentration of 2%, add colloidal anhydride powder, adjust the pH value to 7.5, react for 6 hours, precipitate, filter, and dry to obtain hydrophilic modified chitosan, and then Dissolve the hydrophilic mod...

Embodiment 3

[0046] (1) Take fresh witch hazel branches, grind them in a plant grinder, and then grind them in supercritical CO 2 The crude extract of tannin was obtained, and the crude extract was added to water to make a feed solution with a mass fraction of 20%, and then membrane separation was carried out through a hollow sulfonated polysulfone fiber membrane to obtain purified witch hazel tannin ; The pressure of supercritical extraction is 32MPa, the temperature is 45℃, supercritical CO 2 The flow rate is 12mL / min, the extraction time is 60min; the transmembrane pressure difference of membrane separation is 0.15MPa, the temperature is 42°C, and the flow velocity of feed liquid on the membrane surface is 2.5m / s;

[0047] (2) Dissolve chitosan in an acetic acid solution with a mass concentration of 2%, add colloidal anhydride powder, adjust the pH value to 8.5, react for 7 hours, precipitate, filter, and dry to obtain hydrophilic modified chitosan, and then Dissolve hydrophilic modifi...

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Abstract

The invention belongs to the technical field of cosmetics and provides a long-lasting moisturizing and sunscreen cosmetic and a preparation method thereof. The preparation method comprises carrying out hydrophilic-lipophilic modification on chitosan, preparing chitosan aerogel carrying tannin, total flavonoids and nanometer titanium dioxide, mixing the chitosan aerogel, hyaluronic acid, 1, 3-butanediol, collagen, jojoba oil, jasmine essential oil and deionized water, and carrying out homogenization to obtain the long-lasting moisturizing and sunscreen cosmetic. Compared with the cosmetic obtained by the conventional method, the long-lasting moisturizing and sunscreen cosmetic can form a chitosan aerogel sunscreen film on the surface of the coating when smeared to the surface of the skin and prevent the water loss so that a good long-lasting moisturizing and sunscreen effect is obtained.

Description

technical field [0001] The invention belongs to the technical field of cosmetics and provides a long-acting moisturizing sunscreen cosmetic and a preparation method. Background technique [0002] With the continuous progress of social economy and the enrichment of material life, skin care cosmetics have entered the homes of ordinary people, and have played a great role in improving people's spirit and image. There are many types of skin care products with different characteristics, mainly including moisturizing, whitening, moisturizing, oil control, anti-aging, sensitive skin, shrink pores, blackhead removal, freckle removal, and cellulite special skin care products. Among them, moisturizing is the most basic and important skin care content. In addition, the damage of ultraviolet rays is extremely harmful to the skin, so sun protection has also become an important item of skin care cosmetics. [0003] Healthy skin should be smooth, moist and elastic, which is largely due to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/9789A61K8/92A61K8/73A61K8/65A61K8/49A61K8/29A61K8/34A61Q17/04A61Q19/00
CPCA61K8/29A61K8/345A61K8/498A61K8/65A61K8/735A61K8/736A61K8/922A61K2800/805A61Q17/04A61Q19/00A61K8/9789
Inventor 赵宏伟
Owner 浙江伊瑟奇医药科技有限公司
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