摘要
次氯酸钠作为织物漂白剂 ,对环境构成严重危害已被公认 ,寻求其替代品的任务迫在眉睫 ,过醋酸有望成为替代品。本文在系统实验基础上 ,确定了过醋酸漂白纯棉织物的最佳工艺条件 :过醋酸 7g/ L、p H值 7、温度为 90℃ ,时间对漂白效果影响不明显 ,可根据产品白度和生产工序间的同步关系选择 ;焦磷酸钠作为过醋酸漂白的稳定剂 ,对提高白度很重要 ;用活性黄 B- 4RFN和直接红 2 B上染过醋酸和氯 -氧漂织物 ,所得表观深度差别不大。
Sodium hypochlorite as a bleaching agent for cotton fabric does great ha rm to environment , the peracetic acid is expected to be an alternative. Through systematic experiments, the optimum bleaching process was defined as follows: p eracetic acid 7g/L, pH value 7,temperature 70 ℃, time can be selected accor ding to the required whiteness and synchro-relationship between the steps as it exerts little influence on the treating effect. Sodium pyrophosphate, as a stab ilizer, is important for whiteness improvement. Difference of surface depth of r eactive yellow B-4RFN and direct red 2B dyed fabrics which were bleached with peracetic acid and chlorite respectively is not notable.
出处
《印染》
北大核心
2001年第6期5-8,共4页
China Dyeing and Finishing
