超柔氨纶生产技术提升研究

为摆脱氨纶行业低水平技术重复扩张、竞相压价的恶性竞争局面,我公司自主开发了超柔软性氨纶并成功实现工业化,近来又对该技术进行了优化提升。该提升技术是在深入研究氨纶干法纺丝聚合机理的基础上,通过提高PTG分子量、提高PTG/MDI反应的摩尔比、自主研发扩链剂新配方、调整助剂配方,设计并使用与高聚物匹配的新型喷丝板、优化纺丝工艺及油剂等创造性提升工作,使氨纶纤维的弹性伸长率在原有基础上提高了23%,同时应力降低了20%,其技术达到了国内领先的水平。该产品提高了氨纶丝的弹性伸长率,降低了纤维的模量,同时纤度、张力的均一性也有了显著的提升,为后道产品的织造、后整理顺利进行提供了方便,提高了面料手感的舒适度、门幅的稳定性,降低了织物中的氨纶含量,降低了后道用户的使用成本,为企业带来较好的经济效益和社会效益。

Research on Advancing the Production Technology of Super Soft Spandex

In order to get rid of the vicious competition, our company independently developed the super soft spandex and realized industrialization, Now, we advance the production technology. By increasing the molecular weight of PTG, increasing the molar ratio of PTG/MDI, adjusting the chain extender and the finish oil, designing new type spinneret, optimizing the spinning process, so that the spandex elongation increase of 23%, while the stress reduced by 20%, and its technology has reached the leading domestic level. The product improves the conventional spandex elastic elongation, modulus, the uniformity of tension, and fabrics feel, so bring better economic and social benefits for enterprises.