纯棉机织物连续生化前处理

Continuous biological pretreatment of cotton fabric

针对棉织物常规前处理工艺存在工时长、污染大、能耗高等问题,采用连续式生化前处理工艺处理棉织物,即先用生物酶制剂对织物进行预处理,再进行氧漂处理。优化的复合酶预处理工艺为:复合生物酶4～6g/L,渗透剂4g/L,60℃保温堆置90min;优化的氧漂工艺为:复合前处理剂CTA-8800L-220～25g/L,辅助剂4～6g/L,100%双氧水8～10g/L,100℃汽蒸60min。结果表明,织物的白度、毛效、退浆率和强力等均优于常规工艺,且较常规工艺减少一次高温汽蒸工序,符合节能减排要求。

Aiming at the problems existed in the conventional pretreatment of pure cotton fabric, such as long working hours, heavy pollution, and high energy consumption, etc., the continuous biological pretreatment was applied to cotton fabric with bio-enzyme pretreatment prior to oxygen bleaching. The optimal pretreatment process was complex enzyme 4 - 6 g/L,penetrant 4 g/L,reaction at 60 ℃ for 90 min; optimal oxygen bleaching process was CTA-8800L-2 20 - 25 g/L,auxiliary 4-6 g/L, 100% H2O2 8 - 10 g/L, steaming 60 min at 100℃. The results showed that the treated fabric had better whiteness, capillary effect, desizing efficiency, and strength than that of conventional process. In addition, with one less high temperature steaming procedure, the biological pretreatment meets the requirements of energy-saving and emission reduction.