锦纶工业长丝干热收缩率试验方法改进的探索  

Exploration on Improvement of Test Method for Shrinkage in Hot Air of Polyamide Industrial Filament Yarns

作　　者：刘玲玲 周祯德 李红杰 LIU Ling-ling;ZHOU Zhen-de;LI Hong-jie(Shanghai Textile Industry Institute of Technical Supervision,Shanghai 200082,China)

机构地区：[1]上海市纺织工业技术监督所,上海200082

出　　处：《合成纤维》2020年第11期40-42,共3页Synthetic Fiber in China

摘　　要：通过对调湿方法、预调湿、预张力三个方面的探索,改进了锦纶工业长丝干热收缩率测试方法。结果表明:锦纶工业长丝在进行干热收缩率测试前,采用10 m长的绞丝进行调湿,可以大大缩短调湿时间至4 h;锦纶工业长丝在进行干热收缩率测试前,应进行预调湿处理,预调湿建议采用50℃处理30 min的方案;热处理预张力偏差降为0.001 cN/dtex,可有效降低测试误差。By exploring the aspects of humidity control method, pre-conditioning and pre-tension, the test method of shrinkage in hot air of polyamide industrial filament yarn has been improved. The results show that conditioning time can be greatly reduced to 4 hours by using 10 m skein before tested;pre-conditioning is needed before testing and the suggested method is drying at 50 ℃ for 30 min;test error can be effectively reduced, when the pre-tension deviation during heat treatment is reduced to 0.001 cN/dtex.

关 键 词：锦纶 工业长丝 干热收缩率 

分 类 号：TS101.921.9[轻工技术与工程—纺织工程]