热定型温度对涤纶针织物性能的影响

Effects of heat setting temperature on the properties of knitted polyester fabrics

为研究热定型温度对涤纶织物各种性能的影响,特别是抗凝血性能的影响,对经不同温度热定型的涤纶针织物进行了结构、活化部分凝血活酶时间APTT、血浆凝血酶原时间PT、血小板黏附性能、吸水性能、染色性能测试和评价。结果表明:随着热定型温度的升高,涤纶针织物的横向、纵向收缩率都在增加;热定型温度为150℃时涤纶织物的吸水性能、抗凝血性能、染色性能均最差;通过对APTT、PT的变化比较可以看出,对织物进行热处理大大抑制了织物的外源性凝血因子PT的激活。

The purpose of this paper is to research effects of heat setting temperature on the properties of knitted polyester fabrics,especially the effect on anti-blood coagulation.The structures,activated partial thromboplastin time（APTT）,prothrombin time（PT）,blood platelet adherence property,water-absorbing property and dyeing property were tested on heat-set knitted polyester fabrics at different temperatures.The results showed that with rising of the heat setting temperature,the shrinkage rate of the fabric in transverse and machine directions increases.The water-absorption,anti-blood coagulation and dyeing properties of the fabric become the worst when heat setting is conducted at 150℃.By comparison of APTT and PT,can see that the heat setting of the fabric greatly inhibits its activation of exogenous coagulation factor PT.