According to the 2021 edition of the "Catalogue of Used Cosmetic Ingredients", there are nearly 9000 types of cosmetic ingredients. This includes single components from chemical synthesis or biological fermentation sources, as well as multi component extracts from animals, plants, microorganisms, and ferns, which have functions such as moisturizing, antioxidant whitening, and repair. Cosmetic raw materials are classified according to their composition, including alcohols, esters, proteins, peptides, amino acids, amino acid analogues, polysaccharides, sugar derivatives, nucleic acids, and other functional components; According to molecular weight, it is divided into high molecular weight components (such as hyaluronic acid, collagen, polyglutamic acid, seaweed polysaccharides, etc.), medium molecular weight components (such as low molecular weight hyaluronic acid, collagen peptide, hexapeptide, palmitic acid tripeptide, etc.), and small molecular weight components (such as collagen tripeptide, carnosine, hyaluronic acid, ergothione, epicycline, arginine, methionine, etc.).

Quality control indicators for cosmetic raw materials, including but not limited to main component content, purity, microbial and inorganic salt residues, etc. Biological cosmetic raw materials have the characteristics of diverse sources and high product quality requirements, so their production process and quality control rely more on modern separation and purification methods. Membrane filtration method, with its outstanding characteristics and significant advantages, has become a necessary option for many cosmetic raw material production processes.

Membrane filtration methods include microfiltration, ultrafiltration, nanofiltration, reverse osmosis, etc. The form of membrane elements includes inorganic tubular Ceramic membrane, organic hollow membrane, organic roll membrane, organic plate membrane, etc. The industrial membrane filtration system uses cross flow filtration system, which can realize the production functions of cosmetics raw materials such as clarification, grading, decolorization, desalination and concentration.

The membrane filtration system has many advantages in treating cosmetic raw materials:

1. Normal temperature, mild conditions, no component damage, especially suitable for heat sensitive substances;

2. Pure physical filtration, no phase change or qualitative change, without damaging the active ingredients;

3. High filtration accuracy, uniform pore size distribution, enabling the purification and concentration of effective ingredients;

4. The system is easy to operate, has a short process, and is easy to clean and maintain;

5. The material liquid treated by the membrane is clear and stable in nature, which is conducive to further processing in subsequent steps;

6. The system is designed for cross flow operation, without the need for additives or the introduction of new impurities, completely solving the problem of pollution and blockage;

7. Modular design of the system, convenient replacement of membrane components, design of online cleaning and sewage discharge devices, reducing labor intensity and production costs, and improving production efficiency;

8. Select stainless steel sanitary materials that comply with QS quality standards;

9. The system is automatically controlled by PLC, with high labor intensity. The membrane filtration process is carried out in a closed container to achieve clean production;

10. The membrane filtration element has a large filling area and a small system footprint, making it convenient for technical improvement, expansion, or new construction projects, effectively reducing investment and production costs.