苎麻织物的过醋酸漂白研究  

Peracetic acid bleaching of ramie fabric

作　　者：王晓明[1] 

机构地区：[1]湖南工程学院化学化工系,湖南湘潭411104

出　　处：《印染》2004年第10期8-11,共4页China Dyeing and Finishing

摘　　要：常见的几种漂白剂如次氯酸钠、亚氯酸钠、过氧化氢等在漂白时都会不同程度地产生可吸附有机卤化物AOX ,对环境造成污染。本项目讨论了一种AOX较低的漂白剂———过醋酸在苎麻织物上的应用 ,确定了过醋酸漂白纯苎麻织物的最佳工艺条件为 :过醋酸 7g/L、焦磷酸钠浓度 3 7g/L ,pH值 6左右、温度70℃、时间 80min、浴比 1∶3 0。用焦磷酸钠作为过醋酸漂白的稳定剂 ,可提高白度。Several common bleaching agents such as sodium hypochlorite, sodium chlorite and hydrogen peroxide will produce absorbable organic halogen AOX and pollute environment. In this paper, peracetic acid bleaching agent with lower AOX applied to ramie fabrics was discussed. The optimum process conditions were as follows: concentration of peraceti cacid 7 g /L, concentration of sodium pyrophosphate 37 g /L, pH value 6, temperature 70 ℃, time 80 minutes, liquor ratio 1∶30. The sodium pyrophosphate as stabilizer in peracetic acid bleaching can increase whiteness. In addition, the results of peracetic acid bleaching and their apparent shade depth of dyed fabrics are compared with that of hydrogen peroxide bleaching.

关 键 词：苎麻织物 过醋酸 漂白 漂白剂 工艺条件 

分 类 号：TS192562[轻工技术与工程—纺织化学与染整工程]