Enzymatic Functionalization of Wool for Felting Shrink-Resistance
2016
ABSTRACTFelting 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.
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