Pure chitosan fiber, also known as Hismer fiber, Spanned in wet process by use of good filamentization performance of chitosan solution, it is the only medical chitosan fiber applied for state invention patent, the deep-processing product of chitosan and a kind of functional fiber. Textiles made of chitosan fiber can activate tissues by activating bactericidal enzymes in body fluids when touching the skin; meanwhile, inhibit micro-organisms and bacteria reproduction and diminish inflammatory; in particular, have functions of preventing the proliferation of spoilage organisms, the accumulation of sweat and sebum, deodorizing and cleaning, thus avoiding skin diseases. Presently, it is extremely superior to other non-natural anti-bacterial materials.

**technical specification:

  1. dry breaking strength(cN/detex)≥1.40

  2. elongation of dry breaking(%):M1+3.0

  3. coefficient of strengthh variation of dry breaking(CV)/%:18

 **Applications:

 Due to its good antibacteria, quick moisture absorption and moisture proofness adsorption of peculiar smell and heavy metal elements, Hismer fiber is widely applied:

  1. Clothing and hygiene textiles: senior underwear for men and women, shirt, female sanitary napkin, baby wear, diapers, anti-beriberi socks, patient clothes, doctor gowns, and bedding products.

  2. Medicine field: Absorbable sutures both in vivo and in vitro, gauze and woven compress for the treatment of burns and wounds, and artificial skin.

  3. Water purifiers and air filters.

 **Functions:

 1. Bacteriostasis. In general, the harmful bacteria like E. coli and Staphylococcus aureus, brings anions. On the contrary, chitosan has cationic because of its amino. Due to the interattraction between positive and negative charges, chitosan can inhibit the propagation of harmful bacteria. The greater the purity of chitosan, i.e. the degree of deacetylation, the better this effect is. Besides, the antibacterial activity of chitosan fiber depends on the purity of its raw materials. The chitosan can be effectively antibacterial if wearing apparels containing chitosanfiber.

  2. Skin growth promotion. When chitosan fiber touches the skin, lysozymes in the skin will proliferate at 1.5 to 2 times the original speed on average, thus keeping the skin tender and elastic.

  3. Anti-mildew. If 99% chitosan after deacetylation is cultivated for 4 days in 0.15% low concentration, there is no new fungal spore. The higher chitosan concentration and purity are, the better the effect is.

  4. Ease stink of sweat, and keep clean.

  5. Sorption to harmful substances. Because chitosan is natural polymer material with positive charge, it can adsorb harmful metal waves or electronic waves, and cut off radioactive contaminants.

  6. Static electricity resistance and high dyeability. Chitosan fiber can effectively prevent static electricity, for it has inherent impedance characteristic similar to man-made fibers. Plus, it has the best affinity to reactive dyes, and better to direct dyes.

  7. Moisture retention. Chitosan has a good hydrophilicity due to its plentiful amino and hydroxyl. Owing to the large density and excellent moisturizing of unit charge and polar group, it can keep the body moist

  **Advantages of Hismer Fiber 

 1. with no boric acid, the thus-produced Hismer fiber has better health security.

  2. no use of ethanol, whether in the coagulation process or the former two washing process, leads to a significant reduction in the cost, down more than 80%.

  3. better anti-bacteria: 100% bacteriostatsis ratio to Staphylococcus aureus, 98% to E. coli and over 65% to Candida albicans detected by the authoritative department.