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首页> 外文期刊>The Journal of the Textile Institute >Comparative study on the effect of acid and alkaline protease enzyme treatments on wool for improving handle and shrink resistance
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Comparative study on the effect of acid and alkaline protease enzyme treatments on wool for improving handle and shrink resistance

机译:酸性和碱性蛋白酶处理羊毛改善手感和抗缩性的效果的比较研究

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摘要

Wool is commonly treated with alkaline protease enzyme to improve handle and shrink resistance. The limitations associated with the usage of this enzyme on wool are excessive weight and strength losses and pH sensitive enzyme activity, etc. Wool is generally stable if processed in acidic conditions rather than alkaline conditions. This study explores the possibility of using acid protease enzyme to improve handle and shrink resistance of wool. The acid protease enzyme is applied on acid and alkaline peroxide bleached wool fabrics using optimized process parameters, and the results are compared with alkaline protease enzyme treated wool fabric. The acid protease treated fabrics show 30% higher softness than alkaline protease treated fabrics with 72% and 62% lower weight and strength losses, respectively. The alkaline peroxide bleaching prior to acid protease treatment provides 100% and 67% higher whiteness and shrinkage resistance, respectively, to wool than the acid peroxide bleaching. The action of the enzymes on wool and shrink resistance and handle of the treated fabrics is characterized using SEM, FT-IR and KES-F method.
机译:通常用碱性蛋白酶处理羊毛以改善手感和抗收缩性。与这种酶在羊毛上的使用有关的限制是过度的重量和强度损失以及对pH敏感的酶活性等。如果在酸性条件下而不是碱性条件下加工,羊毛通常是稳定的。这项研究探索了使用酸性蛋白酶改善羊毛的手感和抗收缩性的可能性。使用优化的工艺参数将酸性蛋白酶应用于酸性和碱性过氧化物漂白的羊毛织物,并将结果与​​碱性蛋白酶处理的羊毛织物进行比较。酸性蛋白酶处理的织物显示出比碱性蛋白酶处理的织物高30%的柔软度,而其重量和强度损失分别降低72%和62%。与酸性过氧化物漂白相比,酸性蛋白酶处理之前的碱性过氧化物漂白可分别为羊毛提供100%和67%的白度和抗收缩性。使用SEM,FT-IR和KES-F方法表征酶对处理过的织物的羊毛和抗收缩性及手感的作用。

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