苎麻织物的纤维素酶与弹性聚氨酯联合抗刺痒整理技术研究

In this paper, the effects of anti-prickle finishing of ramie fabrics with cellulase and polyurethane singly or in combination are studied,and the changes in fiber morphology, crystallinity and mechanical propertyies are also examined. The results showed that the breaking strength of ramie fabric was decreased seriously caused by cellulase finishing instead of reducing prickle sensation effectively. The hairiness on ramie fabric surface is partly softened or removed by appropriate cellulase finishing, and benificial to consequent polyurethane finishin. However, the decrease of prickle sensation is limited by this cellulase finishing. Polyurethane finishing of ramie fabrics decreased fabric prickle property remarkably, due to the improvement in fabric surface smoothness and the decrease in the surface hairiness by wrapping and sheathing ramie fibers or yarns. Meanwhile, the compressive property of ramie fabrics was effectively increased by cross-linking and net-working between polyurethane and fibers. The cellulase-polyurethane combination finishing decreased the prickle property, because of the improvement infiber surface and compressive property significantly, with a preferably preserved fabric breathability and whiteness.