高锰酸钾-中性蛋白酶对山羊绒纤维毡缩性能的影响

Research on the felting properties of KMnO_4-neutral protease to cashmere

单独利用中性蛋白酶对山羊绒进行防毡缩处理的防缩效果并不十分明显,还会产生轻微的"烂芯"现象。文章选用高锰酸钾预处理-中性蛋白酶复合处理工艺,通过单因素分析方法确定中性蛋白酶优化处理条件为:处理温度40℃,酶用量6%(owf),时间45 min,pH值7.5,此时所处理山羊绒的毡缩球体积为18.201 cm3,断裂强力为3.79 cN,断裂伸长率为35.81%,失重率为4.08%,防毡缩性能得到较大程度的提高。说明高锰酸钾预处理-中性蛋白酶复合处理工艺是一种可行的处理工艺。

The result of the shrinkage effect is not very clear when treated cashmere with separate neutral protease,and there will lead to a slight ″rotten core″phenomenon.In this paper,we pretreated cashmere with KMnO4,and then used neutral protease to treat it.Through single-factor analysis,it got the optimized condition was temperature 40 ℃,concentration 6%（owf）,time 45 min,pH value 7.5,and the felting ball volume 18.201 cm3,breaking strength 3.79 cN,elongation rate 35.81%,weight loss 4.08%.The result of the shrinkage effect was clear,illustrate that the pre-KMnO4-neutral protease composite process was a viable treatment process.