Do you believe that the shells of shrimps and crabs can be spun into yarn and made into clothes?
What is it?
Chitosan Fiber is a natural substance extracted from the shells of crustaceans such as shrimp and crabs.Among the organic compounds in nature, cellulose is the most abundant, followed by chitosan. Cellulose is mainly produced by plants, while chitosan is mainly produced by animals. Chitosan is also the largest nitrogen-containing natural organic compound on earth except for protein.
Chitosan is deacetylated to form chitosanamine.After further processing and spinning, chitosan can be made into fiber.

What are the advantages of chitosan fiber?
1. Moisture absorption and breathability
chitosan fiber has excellent moisture absorption and breathability. Textiles made of it can absorb sweat and keep warm, and are very comfortable to wear. The moisture absorption rate can reach 400%~500%, which is more than twice that of cellulose fiber, its equilibrium moisture regain exceeds that of viscose by more than 15%.
2. Biocompatibility and biodegradability
It has good biocompatibility and will not cause human rejection, which makes it very suitable for medical textiles and care products.
At the same time, chitosan fiber can be degraded by microorganisms in the natural environment and will not pollute the environment. It is a truly green and environmentally friendly material.

3. Antibacterial
Chitosan fiber has natural antibacterial properties, and textiles made of chitosan fiber can have good antibacterial effects without antimicrobial finishing.The amino groups in the molecular structure of chitosan can combine with the cell membrane of bacteria, destroy the normal physiological activities of bacteria, and then inhibit bacterial growth.
It has a good antibacterial effect on common bacteria such as Escherichia coli, Bacillus subtilis, Staphylococcus aureus, and Lactobacillus. Therefore, it is widely used in making underwear and medical dressings.
4. Bright dyeing
It is alkaline and highly chemically active, with excellent dyeing rate for reactive dyes, bright color and soft feel. However, since chitosan fiber is easily soluble in acidic solution, it cannot be dyed in an acidic bath.
5. Skin care and health
It has good hygroscopicity and moisturizing properties, which can help the skin retain moisture. Its rich amino acids and other nutrients can also help repair skin damage and promote cell regeneration, so it is also widely used in making skin care products, facial masks and medical dressings.

Chitosan fiber meets people’s demand for high-performance textiles and is also green and environmentally friendly.With the development of science and technology and people’s increasing demand for green and environmental protection, as well as the continuous improvement of production technology and the reduction of costs, it is expected to be used in a wider range of fields.