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Preparation method of algal chitosan-containing cosmetic

A technology of chitosan and cosmetics, which is applied in the field of preparation of algae-containing chitosan cosmetics, and achieves the effect of low cost and wide source of raw materials

Inactive Publication Date: 2019-07-02
SHENZHEN SANDA COSMETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the field of cosmetics, it is generally only used as a thickener

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of algal chitosan, comprising:

[0041] Step T1: drying the algae and crushing to obtain algae powder;

[0042] Step T2: Take the ground algae and add strong acid for soaking;

[0043] Step T3: removing the acid solution, washing with water until neutral, and filtering;

[0044] Step T4: Add strong base and heat to 60-100°C;

[0045] Step T5: removing the lye, washing with water until neutral, and filtering;

[0046] Step T6: adding alcohol or alcohol-containing liquid;

[0047] Step T7: filtering and drying to obtain chitin;

[0048] Step T8: taking the chitin obtained in step T7, adding a strong alkali solution for microwave heating;

[0049] Step T9: drying.

[0050] Chitosan prepared from algal plants has a wide range of raw materials, and belongs to plant sources, with low cost.

[0051] In step T1, preferably, the algae are Austeniella algae, Spirulina bonate, Spirulina spirulina, Fucus serrata, Echinococcus spp. Phyllostachys versicol...

Embodiment 2

[0058] A preparation method of small molecule algae chitosan, comprising:

[0059] Step S1: using algae to obtain algal chitosan;

[0060] Step S2: adding a dispersant to obtain a dispersion;

[0061] Step S3: irradiating the dispersion obtained in step S2 with cobalt-60 rays;

[0062] Step S4: removing the dispersant;

[0063] Step S5: Repeat steps S2-S4 once to six times;

[0064] Step S6: Removing the solvent.

[0065]Chitosan prepared from algal plants has a wide range of raw materials, and belongs to plant sources, with low cost. And the molecular weight of the prepared small molecular algae chitosan is less than 1000 Daltons, can be well absorbed by human skin, and can be used for preparing cosmetics.

[0066] Among them, the algae are preferably Austeniella, Spirulina bonate, Spirulina spirulina, Fucus serrata, Echinococcus chinensis, Macrophyllum algae, Macroalgae light black, Sargassum dilatata, Padina versicolor, Padina versicolor Algae, floating chlorella, sta...

Embodiment 3

[0071] A kind of preparation method that contains algae chitosan cosmetics, its formula is as follows:

[0072] Algal chitosan with a molecular weight of 200-1000 Daltons: 0.01-12 parts by weight;

[0073] Algal chitosan with a molecular weight of 1000-10000 Daltons: 0.01-8 parts by weight;

[0074] Algal chitosan with a molecular weight of 10,000-100,000 Daltons: 0.01-5 parts by weight;

[0075] Algal chitosan with a molecular weight of 100,000-1,000,000 Daltons: 0.01-5 parts by weight;

[0076] Additive: 80-99.6 parts by weight;

[0077] Mix evenly after weighing according to the formula.

[0078] Preferably, the additives include one or more of humectants, solvents, preservatives, antioxidants, emulsifiers, surfactants, and nutrients.

[0079] Wherein, the algae chitosan with a molecular weight of 200-1000 Daltons can be prepared by using the preparation method of the small molecule algae chitosan provided in Example 2. Molecular weight is that the algae chitosan of 10...

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Abstract

The invention provides a preparation method of an algal chitosan-containing cosmetic. A formula is as follows: 0.01 to 12 parts by weight of algal chitosan having a molecular weight of 200 to 1000 Daltons; 0.01 to 8 parts by weight of algal chitosan having the molecular weight of 1000 to 10,000 Daltons; 0.01 to 5 parts by weight of algal chitosan having the molecular weight of 10,000 to 100,000 Daltons; 0.01 to 5 parts by weight of algal chitosan having the molecular weight of 100,000 to 1,000,000 Daltons; and 80 to 99.6 parts by weight of an additive; and the materials are weighed according to a formula and then mixed evenly.

Description

technical field [0001] The invention relates to the technical field of cosmetics, in particular to a preparation method of algae-chitosan-containing cosmetics. Background technique [0002] Chitosan is the product of deacetylation of chitin, and it is the only alkaline polysaccharide and cationic polysaccharide in nature. Chitin mainly exists in the shells of shrimps, crabs and some insects, and secondly, it is also recorded in the literature in mushrooms. As a natural polymer biomaterial, chitosan has many special functions and a wide range of uses, such as in the fields of pharmacy, pharmacology, hypoglycemia, artificial tissue, food and cosmetics. However, in the field of cosmetics, it is generally only used as a thickener. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcoming of the prior art, provide a kind of preparation method that contains algae-chitosan cosmetic. [0004] In order to solve the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/73A61K8/60A61Q19/00
CPCA61K8/60A61K8/736A61Q19/00
Inventor 杨增松
Owner SHENZHEN SANDA COSMETICS