氨纶的生产及应用

Production and application of Spandex

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%。聚氨酯弹性纤维应用十分广泛,可以用氨纶为纱芯,外包非弹性纤维制成各种包芯纱、包覆纱、空气变形纱,也可以用裸丝与其他纤维合股使用,主要用于加工各类高档弹性织物。

The spinning methods of Spandex are dry spinning ,wet spinning ,chemical reaction spinning and melt spinning .The output of dry spinning can reach 80%of Spandex total output in the world .The application of polyurethane fiber is widespread Different core yarn ,lapping yarn ,airtextured yarn can be produced by using Spandex as core ,inelastic fiber as skin .The bare yarn of Spandex can be plied with other fiber to manufacture different highgrade elastic fabric.