【摘要】 探究了漆酶酶促茶叶色素的催化氧化作用及其在棉针织物染色中的应用。分别考察了漆酶用量、温度、时间以及p H值对茶叶色素催化氧化效果的影响和染色温度、染色时间以及染色p H值对棉针织物的染色效果的影响。并采用红外光谱对对催化前后茶叶色素结构进行了表征,对染色棉织物进行耐摩擦色牢度、耐皂洗色牢度、耐日晒色牢度测试。结果表明,酶促茶叶色素的最佳工艺条件为酶浓度40 g/L、温度50℃、时间120 min、处理p H值为5.0,对棉针织物最优染色工艺条件为温度90℃、时间90 min、p H值为6.0,此时染色棉针织物的耐摩擦色牢度、耐皂洗色牢度优良。更多还原

【Abstract】 The effect of lacase on the catalytic oxidation of tea pigment and its applications in textile dyeing were explored. The effects of laccase enzyme dosage, treatment temperature, time and p H in the processing on the catalytic oxidation were discussed, as well as the effects of dyeing temperature, time and p H on cotton fabrics. The structure of tea pigments before and after the catalytic was analyzed through the infrared spectrum. And the properties such as rubbing, washing fastness and sunlight fastness of dyed fabric were tested. The results show that the optimum conditions for enzyme processing is that enzyme concentration is 40 g/L, temperature is 50 ℃, time is120 minutes, p H value is 5.0, and optimal dyeing process conditions are that the temperature is 90 ℃, time is 90 minutes, p H value is 6.0, and in this case the color fastness to rubbing and washing is good.更多还原