棉织物低温近中性一浴一步法练漂  

Scouring and bleaching of cotton fabric by low temperature near neutrality one-bath one-step process

作　　者：张悦 胡丹玲[1,2] 任金娜 李青 ZHANG Yue;HU Danling;REN Jinna;LI Qing(School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China;Hubei Key Laboratory of Biomass Fiber and Ecological Dyeing & Finishing, Wuhan Textile University,Wuhan, Hubei 430200, China;College of Textile and Clothing Engineering, Soochow University,Suzhou, Jiangsu 215123, China;National Engineering Laboratory for Modern Silk, Soochow University,Suzhou, Jiangsu 215123, China)

机构地区：[1]武汉纺织大学化学与化工学院,湖北武汉430200 [2]武汉纺织大学生物质纤维与生态染整湖北省重点实验室,湖北武汉430200 [3]苏州大学纺织与服装工程学院,江苏苏州215123 [4]苏州大学现代丝绸国家工程实验室,江苏苏州215123

出　　处：《纺织学报》2019年第9期83-90,共8页Journal of Textile Research

基　　金：生物质纤维与生态染整湖北省重点实验室开放课题(STRZ2017017);武汉纺织大学科技创新计划项目(183012)

摘　　要：为实现基于生物酶的棉织物短流程前处理,构建出过硼酸钠/四乙酰乙二胺(SPB/TAED)低温活化体系,并将果胶酶与纤维素酶溶入该体系对棉织物进行同浴练漂。通过变量控制法分析了酶的种类与质量浓度、SPB与TAED的质量浓度、时间与温度对织物白度与毛效的影响,得到优化的一浴一步工艺:果胶酶、纤维素酶、SPB、TAED、渗透剂质量浓度分别为1、2、15、25、1 g/L,时间为60 min,温度为60℃。将此低温工艺与传统的高温(95℃)碱性(p H值12~13)工艺进行对比,结果表明:前者节能优势明显;2种工艺条件下的练漂棉织物具有相当的白度、吸湿性、可染性,但低温练漂织物的强力明显较高,其表面更光滑且杂质较少。In order to achieve a short pretreatment utilizing bio-enzyme for cotton fabric, the low-temperature activated system based on sodium perborate/tetraethylenediamine (SPB/TAED) was established. At the same time, both cellulase and pectinase were added into SPB/TAED system. Influences of the type and dosage of bio-enzyme, dosage of SPB/TAED, process duration and temperature on whiteness index (WI) and capillary effect (CE) of the fabric were investigated by the variable-controlling method. It can be found that good compatibility exists between bio-scouring and SPB/TAED bleaching. An optimized process is obtained as follows: cellulase 1 g/L, pectinase 2 g/L, SPB 15 g/L, TAED 25 g/L, penetrating agent 1 g/L, duration of 60 min and temperature of 60 ℃. In comparison with the conventional process carried out at 95 ℃ using peroxide and strong alkali (pH 12-13), the optimized low-temperature process has an obvious advantage in saving energy. The WI, wettability and dyeability are similar for the fabrics pretreated by the low-temperature and conventional high-temperature process. The breaking force, however, treated by low-temperature process is higher, and the surface of such pretreated fabrics is smoother and cleaner.

关 键 词：棉织物 低温漂白 生物精练 生物酶 一步法 前处理 

分 类 号：TS192.5[轻工技术与工程—纺织化学与染整工程]