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Mechanical and Dyeing Properties of Wool and Cotton Fabrics Treated with Low Temperature Plasma and Enzymes

机译:低温等离子和酶处理的羊毛和棉织物的机械和染色性能

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Cotton and wool fabrics were treated with low temperature oxygen plasma or enzymes or both and examined for their mechanical and dyeing properties. Plasma-treated cotton showed reduced strength, while the rate of weight loss in subsequent cellulase treatments decreased compared with untreated cotton. Equilibrium uptake of a direct dye remained unchanged regardless of plasma or cellulase treatment. The rate of dyeing increased, however, although the difference was slight, in the order of plasma treatment < untreated < cellulase treatment = plasma/cellulase treatment. Plasma pretreatment of wool caused an increase in strength and a higher rate of weight loss in the subsequent protease treatment. When wool was dyed with a leveling acid dye, equilibrium dye uptake did not change with plasma or protease pretreatment, but the dyeing rate increased with the plasma pretreatment. With a milling acid dye, both increased greatly in the order of untreated < protease treatment < plasma treatment < plasma/protease treatment. From these results, we assumed that plasma attacks the surface of the fiber, and the enzyme affects mainly the inner part of the fiber. This was confirmed by scanning electron microscopy. The polymerization of enzyme with a water-soluble carbodiimide did not show any strength retention effect in enzymatic treatment of cotton and wool.
机译:棉和羊毛织物经过低温氧等离子体或酶或两者同时处理,并检查了它们的机械和染色性能。与未经处理的棉相比,经等离子体处理的棉强度降低,而在随后的纤维素酶处理中重量减轻的速率降低。不管血浆或纤维素酶处理如何,直接染料的平衡吸收均保持不变。但是,虽然差异很小,但染色速率增加了,按等离子处理<未处理<纤维素酶处理=血浆/纤维素酶处理的顺序进行。羊毛的等离子体预处理在随后的蛋白酶处理中引起强度的增加和更高的重量损失率。用均染酸性染料对羊毛进行染色时,血浆或蛋白酶预处理不会改变平衡染料的吸收量,但血浆预处理会增加染色率。对于研磨酸性染料,两者均以未处理<蛋白酶处理<血浆处理<血浆/蛋白酶处理的顺序大大增加。根据这些结果,我们认为血浆会侵蚀纤维的表面,而酶主要影响纤维的内部。这通过扫描电子显微镜确认。酶与水溶性碳二亚胺的聚合在棉和羊毛的酶处理中没有显示任何强度保持效果。

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