摘要
Abstract
In order to solve the problems of high energy consumption and high pollution in the conventional pretreatment process of cotton knitted fabric, low temperature scouring enzyme was used for the pretreatment of cotton knitted fabric to reduce energy consumption and reduce pollution. The scouring and bleaching process of home made low temperature scouring enzyme in one bath for cotton knitted fabric was investigated as follows: low temperature scouring enzyme 3 g/L, 2A scouring agent 0.3 g/L, 30% hydrogen peroxide 5.0 g/L, boiling time 60 min, boiling temperature 85 ℃ , bath ratio 1:10. The loss of bursting strength of fabric treated by low temperature one bath scouring and bleaching process was small and the strength was 13.7 N higher than that of traditional process. The weight loss rate, whiteness and wool efficiency were not very different from those of traditional process, which could meet the requirements of general printing and dyeing products for pretreatment. Compared with the traditional process, the low temperature scouring enzyme one bath scouring and bleaching process treated 1 t of cotton knitted fabric could reduce the comprehensive use by about 50 kg of standard coal consumption, CODCr of wastewater decreased by 85.1 mg/L, pH decreased by 0.92, which was beneficial to sewage treatment.关键词
低温催化/棉针织物/一浴煮漂/节能减排Key words
low-temperature catalyst/cotton-knitted fabric/scouring and bleaching in one bath/sav-ing energy and reducing emissions分类
轻工纺织
