微生物谷氨酰胺转胺酶改善羊毛织物性能

Improving the properties of wool fabrics by microbial transglutaminases

以微生物发酵生产的谷氨酰胺转胺酶(MTG)作为羊毛织物的酶整理剂,探讨了MTG在羊毛织物防毡缩和强力损伤恢复中的作用。对所用的羊毛纤维进行了氨基酸分析,从理论上为MTG的作用提供了依据。经过高锰酸钾和蛋白酶预处理后再利用MTG处理,与对照样相比,织物强力提高了30%,毡缩率从处理前的9.35%下降至2.30%。与树脂整理方法比较,结果表明强力不及树脂整理方法,毡缩率达到了与之相当的效果,并且处理液的COD值只有树脂整理的1/3。

Introduced a new microbial transglutaminase （MTG） which was prepared by microbial fermentation and applied to the treatment of wool fabrics, and investigated its effect in anti-felting and remedy of strength loss of the wool fabric. Analysis of amino-acids of the wool used in this experiment was undertaken to provide a theoretic basis for the feasibility of the role of MTG. The wool fabric was pretreated in order by potassium permanganate and protease, then, followed by MTG treatment. When compared with the control sample, the strength of the treated fabric increased by about 30%, and the felting shrinkage reduced from 9.3% to 2.3 %. When compared with the traditional resin treatment, its felting shrinkage was similar, but strength was lower. However, the COD of its treating bath was only one third of that of the traditional resin treatment.