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ABSTRACT
Felting shrink-resistance is an inherent limitation of wool that affects serviceability of woolen textiles by altering fit and aesthetic after repeated launderings. Eco-friendly protein hydrolysis of scales of wool via enzymatic processing bears “slow nature of enzyme action” and “excessive weight/tensile strength loss” as major constraints. Chemical & enzymatic pre-treatments used to increase wettability of wool for easier adsorption of enzymes on surface are mentioned. Developments to control tensile/weight loss via different pre-treatments, engineering of enzymes bigger than corresponding native enzymes, immobilized enzymes, post-treatment with cross-linking enzymes, enzymes with optimum efficiency in acidic conditions are reviewed.
摘要
毡缩性是羊毛固有的一项不利特性，它会改变羊毛纺织品在反复洗涤后的贴身性和美观度，从而影响羊毛纺织品的推广。通过酶处理对羊毛鳞片进行环保型蛋白水解后，能够克服主要限制因素“酶作用的缓慢性质”和“重量/拉伸强度过度损失”。本文指出化学和酶预处理用于提高羊毛的润湿性，以便更容易吸附表面酶。本文还对下列各项工艺开发进行了考察：通过预处理控制拉伸/重量损失，对大于相应天然酶的酶进行工艺处理，固定酶，采用交联酶进行后处理，酶在酸性条件下的最佳效力。