摘要
葡萄糖氧化酶低温漂白体系中H2O2分解率仅为50%左右,为此加入活化剂TAED进行活化低温漂白。在一定的葡萄糖氧化酶催化产生H2O2的条件下,确定了活化低温漂白优化工艺:pH值7.0、温度70℃、时间60 min、nTAED/nH2O20.5∶1、浴比10∶1、焦磷酸钠2 g/L。在葡萄糖氧化酶活化低温漂白中,H2O2分解率达98%以上,有利于棉织物白度的提高。与传统漂白工艺相比,葡萄糖氧化酶活化低温漂白的织物白度略低,但纤维损伤小,强力损失更低。
In low-temperature bleaching of cotton fabric with glucose oxidase, the decomposition of H2O2 is only about 50%, so activator TAED is introduced into the bleaching system. The optimal process of activated low-temperature bleaching is： pH value 7. 0, nTAEO： nH2O2 0.5 ： 1, bleaching at 70℃ for 60 min, bath ratio 10： 1, sodium pyrophosphate 2g/L. Decomposition rate of H2O2 is above 98 % in the activated low temperature bleaching system. The whiteness of the fabric bleached in the activated low temperature process is a bit lower than that in the traditional process. Compared with traditional bleaching process, low temperature bleaching with glucose oxidase has lower damage and less strength loss to fibers.
出处
《印染》
北大核心
2011年第10期6-9,共4页
China Dyeing and Finishing
关键词
漂白
低温
葡萄糖氧化酶
棉织物
bleaching
low temperature
glucose oxidase
cotton fabric
