The spinning methods of Spandex are dry spinning , wet spinning , chemical reactionspinning and melt spinning .
氨纶的纺丝方法有干纺、 湿纺、 化学反应纺丝和熔融纺丝法，干纺产量占世界氨纶总产量的80%。
2
The spinning methods of Spandex are dry spinning, wet spinning, chemical reactionspinning and melt spinning. The output of dry spinning can reach 80%of Spandex total output in the world.
氨纶的纺丝方法有干纺、湿纺、化学反应纺丝和熔融纺丝法，干纺产量占世界氨纶总产量的80%。
3
The purpose in this dissertation is to ameliorate the mechanical properties of chitosan fiber by using dry-jet wet spinning and cross-linking reaction.