Explanation

The main varieties of natural modified artificial fibers. The fiber is made from refined cellulose, which reacts with NaOH and CS2 to form cellulose sulfonate. According to the different use requirements and properties, it can be divided into: ordinary viscose fiber, strong viscose fiber, high wet modulus viscose fiber, etc. Their differences in structure and mechanical properties are shown in the table below. When manufacturing, the refined cellulose pulp is used for 17. Soak 5% -18% NaOH solution to generate alkali cellulose, and react with NaOH solution to generate sodium cellulose sulfonate after pressing, crushing and aging. Dissolve it in a dilute NaOH solution to obtain the spinning solution, which is filtered, defoamed, and matured before being pressed out of the fine pores of the spinneret. The final fiber is obtained by introducing a coagulation bath consisting of sulfuric acid, sodium sulfate, zinc sulfate and other aqueous solutions to curing into silk, and then adding rx sequence after desulfurization, washing, shanking, drying, etc.

Classification