驼绒的脱色工艺

驼绒本身带有较深的棕黄色,无法进行染色,必须先进行脱色处理.以双氧水为氧化剂对驼绒进行脱色处理.脱色工艺条件为:浴比1∶40,双氧水质量浓度14.5 g/L,氧漂稳定剂质量浓度6 g/L,脱色时间4 h、温度55℃、pH 6.5.驼绒的白度由-14.32脱色为62.57,可以满足染色工艺的白度要求;单纤断裂强力由13.3cN降为12.5 cN,降幅6.0%,但不影响其正常纺纱所需的强力.SEM分析证明经过脱色处理后的驼绒纤维表面变得规整、洁净,鳞片表面变得粗糙,边缘圆滑.

Bleaching technique on camel hair

Camel hair can’t be dyed because of its deep brown,so it must be bleached firstly.Camel hair was bleached by hydrogen peroxide as oxidizer in the paper.The bleaching technological conditions were bath ratio 1∶ 40,concentration of hydrogen peroxide 14.5 g/L,concentration of oxygen bleaching stabilizer 6 g/L,bleaching time 4h,temperature 55 ℃ and pH 6.5.Whiteness of camel hair is bleached from-14.32 to 62.57 and can be applied to dyeing.The brute force of camel hair cellfibre has some decrease from 13.3 cN to12.5 cN,and decreasing amplitude is 6.0%,which still satisfies the brute force of spinning technology.SEM analysis proves that the surface feature of bleached camel hair is changed obviously from irregular to clear and neat,and the edge of squama is smooth and sleek.