Lyocell竹浆纤维的复合生物酶前处理工艺

Lyocell bamboo fiber's pre-treatment technology by use of compound enzyme

根据Lyocell竹浆纤维的特点和性能,用α-淀粉酶、精炼酶和酸性纤维素酶对织物进行复合前处理。结果表明,使用浓度为2 g/L的α-淀粉酶、精炼酶和酸性纤维素酶按1∶1∶1的比例复配时,织物的毛效最好;退浆温度在65℃左右、pH为6时,织物的退浆效果最好;而退浆时活化剂NaCl的浓度对退浆的影响不大。在漂白过程中增加双氧水的浓度能提高织物处理后的白度,浓度为4 g/L时漂白效果最佳。

In this paper, based on the Lyocell bamboo fiber characters and performances, α-amylase, refining enzyme and acidic cellulase are used to pre-treat the fabric. The result shows that when the concentration of alpha-amylase, refining enzyme and acid cellulase is 2g/L with blending ratio being 1： 1： 1, the capillary effect is best on the fabric; When the temperature is about 65℃ and the pH about 6, the fabric has the best desizing effect. The concentration of desizing additives NaCl has little impact on fabric des/zing effect. In the process of bleaching, the increase of hydrogen peroxide concentration can improve the fabric whiteness after treated. The best concentration is 4g/L.