可溶PVA伴纺高支纯棉色织面料的生产工艺路线

Process Route of Producing High Count Pure Cotton Yarn Dyed Fabrics by Carrier Soluble PVA Spinning Technology

对用可溶性维纶(PVA)伴纺生产高支高密纯棉色织面料的两种工艺路线("纱线染色、织造、退维"和"纱线退维、染色、织造")进行分析和试验研究.研究结果表明:采用"先退维、后染织"的工艺路线,退维股线的强力较低,可织性差,进行产业化生产的难度较大;采用"先染织、后退维"的工艺路线,织造效率和布面质量能得到保证,可应用于产业化生产;色织布退维后,织物的白度降低,颜色变浅,但无明显沾色现象.

Two process routes（dissolving water-soluble polyvinyl alcohol（PVA） after dyeing and weaving, dyeing and weaving after dissolving water-soluble PVA） used to produce high count and high density pure cotton yarn dyed fabric by using water-soluble PVA carrier spinning technology are analyzed and the experimental researches are done. The research results show that the strength of yarn produced by the former process route is lower and its weavability is bad, and it＇s difficult for industrial production. The weaving efficiency and the fabric quality can be guaranteed by the later process route and it is suitable for industrial production. Also the whiteness of the dyed yarn fabric decreases after dissolving PVA and its color becomes light, but there is no obvious staining.