棉秆皮纤维漂白工艺对其性能的影响  

Effect of Bleaching on Properties of Cotton-straw Bark Cellulose Fibers

作　　者：高双凤[1] 赵亚梅[1] 李龙[1] 

机构地区：[1]西安工程大学纺织与材料学院,陕西西安710048

出　　处：《针织工业》2013年第4期49-51,共3页Knitting Industries

基　　金：教育部科学技术研究重点项目(208140);陕西省科技计划项目(2008K06-10);中国纺织工业协会科技指导性项目(2008009);西安工程大学研究生创新基金项目(chx121001)

摘　　要：文中以棉秆皮纤维为研究对象,针对其脱胶处理后具有的天然色泽问题,选用保险粉为漂白试剂,通过单因素实验法,讨论了保险粉用量、pH值、漂白温度和时间分别对纤维白度、细度、断裂强度、失重率的影响,确定了较佳的漂白工艺为:保险粉用量12 g/L、pH值为9、漂白温度50℃、漂白时间65 min。采用该工艺漂白后,棉秆皮纤维白度提高了10%左右,细度明显减小,断裂强度有所下降但影响较小,说明保险粉对棉秆皮纤维漂白的同时达到了二次脱胶的作用。In this paper, sodium hydrosulfite is used as bleaching agent for the cotton-straw bark cellulose fibers with natural dark color after being degummed. The effect of sodium hydrosulfite dosage, pH value, bleaching time on fiber whiteness, fineness, breaking strength and loss rate of weight are discussed respectively through single factor experiment method. The optimum bleaching process is： dosage of sodium hydrosulfite 12 g/L, pH value 9, 50 ℃ for 65 rain. It is found that after bleached by sodium hydrosulfite, the whiteness of cotton-straw bark cellulose fibers can improved by 10%, while fiber fineness decreases obviously and fibers breaking strength drop but less, all which Suggest that cotton-straw bark cellulose fibers can be degummed secondly after sodium hydrosulfite bleaching.

关 键 词：棉秆皮纤维 漂白 细度 白度 断裂强度 保险粉 

分 类 号：TS192.56[轻工技术与工程—纺织化学与染整工程]