羊毛织物TGase酶法亲水性改性研究

Study on the modification of hydrophilicity of wool fabrics with Transgultaminase

为了改善羊毛织物的亲水性能,利用TGase能够催化ε-聚赖氨酸接枝到羊毛上的性质,采用不同工艺的TGase酶法对羊毛织物进行亲水性整理,测定整理后羊毛织物的K/S值、润湿时间、静态接触角、透湿性、回潮率等性能指标。实验结果表明:TGase催化ε-聚赖氨酸接枝羊毛织物能显著地缩短润湿时间,增加ε-聚赖氨酸用量可进一步缩短润湿时间,提高羊毛织物的润湿性能;而适量的接枝能提高羊毛织物的透湿性,对回潮率的影响不大。

In order to improve the hydrophilicity of wool fabrics, the nature of Transgultaminasecatalyzing ε-poly-L-lysine grafted to wool is used. Different processes of transgultaminase on wool isadopted to conduct hydrophilicity finishing, and by doing this, capability index such as K / S value ofwool, wetting time, the static contact angle, moisture-penetrability, moisture regain are measured. Theresults of the experiment show that Transgultaminase catalyzing ε-poly-L-lysine grafted to wool willsignificantly shorten the wetting time and even further by increasing the ε-poly-L-lysine to some extent,meanwhile, enhance the wettability of the wool fabric. The adequately grafted wool can improve themoisture-penetrability, but has little influence on the moisture regain.