摘要
研究了氧漂促活剂TA-116对漂白过程中双氧水用量、漂白时间和温度的影响,确定了使用氧漂促活剂的低温、低pH值漂白工艺.氧漂促活剂TA-116的低温漂白工艺为:75℃,氧漂促活剂0.3g/L,双氧水稳定剂2g/L,pH=10.8,浴比1∶10,在漂白30min后加入促活剂续漂10min.低pH值漂白工艺为:98℃,pH=7,氧漂促活剂0.3g/L,双氧水稳定剂2g/L,浴比1∶10,漂白开始时加入促活剂,漂白40min.冷轧堆漂白工艺为:氧漂促活剂0.3g/L,pH=10.8,双氧水稳定剂2g/L,一浸一轧,轧余率100%,堆置8h.和其他常规的双氧水漂白工艺相比,使用氧漂促活剂TA-116可以减少双氧水用量,降低漂白温度以及缩短漂白时间,在低温、短时间的温和条件下就可取得良好的漂白效果,减少纤维强度的损伤,节约能源,降低能耗.
The influence of H2O2 dosage, bleaching time and temperature in the bleaching process with oxidation bleaching activator TA-116 was investigated. A lower temperature and pH value bleaching process was determined with activator TA-116, such as bleaching at 75℃ with 0.3 g/L activator,2 g/L H2O2 stabilizer and bath ratio 1：10, at pH 10.8, and by adding promoter after 30 min bleaching followed by 10 min continued bleaching. The lower pH bleaching process with promoter TA-116 was bleaching 40 min at 98 ℃ and pH 7 with activator TA-116 0.3 g/L（added at the beginning of bleaching）, H2O2 stabilizer 2 g/L and bath ratio 1：10. The cold pad-batch process with activator TA-116 was using 0.3 g/L activator and 2 g/L H2O2 stabilizer at pH 10.8, onedip/one-pad, padding to 100% residue and piling for 8 h. As compared to the conventional processes, the bleaching processes with activator TA-116 saved H2O2, lowered the bleaching temperature, shortened the time, gave good bleaching results, diminished fiber strength loss, and decreased the energy consumption.
出处
《印染助剂》
CAS
2008年第4期38-41,共4页
Textile Auxiliaries
关键词
氧漂
双氧水
促活剂
白度
oxidation bleaching
hydrogen peroxide
activator
whiteness
