After de-acetylating chitin, chitosan can be easily dissolved in a dilute acetic acid solution, and chitosan fibers can be made by extruding the solution into a dilute alkali solution.

• 甲壳素脱乙酰基后得到的甲壳胺可以很方便地溶解在稀醋酸水溶液中，经喷丝孔挤出后用稀碱中和沉淀即可得到甲壳胺纤维。