壳聚糖对天然石榴皮色素上染棉织物的影响

摘要

探讨了天然石榴皮染液的提取方法，并对壳聚糖溶液处理后棉织物进行染色，探讨了壳聚糖浸渍处理的时间、温度和浓度对染色性能的影响。结果表明，天然石榴皮染液提取的最优工艺为：100 mL水中溶解7.2 g石榴皮，温度为80℃，提取60 min，pH值为8～9，无须浸泡，直接提取；壳聚糖浸渍处理棉织物的最佳工艺为：壳聚糖浓度为1%,70℃浸渍30 min；经过壳聚糖浸渍处理后的棉织物，用天然石榴皮染液进行染色，提高了染色织物的表面深度和耐摩擦色牢度，这对开发和利用天然染料上染棉织物有很大的价值。%The extracted method of natural pomegranate husk dye liquor was introduced, and cotton fabric fin-ished by chitosan solution was dyed. The effects of time, temperature and concentration in chitosan dipping finishing on dyeing property were analyzed. The results show that the optimal process of extracting natural pomegranate husk dye liquor is that the concentration of chitosan is 1%, dipping time is 30 minutes and the temperature is 70 ℃;the dyeing depth and rubbing fastness of cotton fabric dyed by pomegranate husk dye liquor after treated by chi-tosan are improved, and it has great value on developing and utilizing natural dyes to dye cotton fabric.