3种天然染料的提取及其对改性棉织物的染色性能研究

Research on dyeing and properties of cotton fabric with three kinds of natural plant dyes

为了探究艾叶、马齿苋和槐米3种天然植物染料对棉织物的染色性能,首先采用索氏提取法分别对3种植物染料进行提取,并使用染液对经过阳离子改性的棉织物进行染色,随后探索了在不同染料用量、染色温度、染色时间和pH值条件下3种染料的染色性能并确定了其最佳染色工艺条件,最后测试了在最优染色工艺条件下3种染料的色牢度性能。结果表明:艾叶和马齿苋的最佳染料用量为150 m L/L,槐米的则为100 m L/L;艾叶的最佳染色温度为50℃,马齿苋和槐米的则分别为80℃及70℃;艾叶和槐米的最佳染色时间均为60 min,马齿苋的则为75 min;3种染料的最佳染色pH值均为7。艾叶、马齿苋和槐米染色的改性棉织物均具有良好的色牢度性能。

In order to study the dyeing properties of three natural plant dyes of artemisia argyi,purslane and huaimi on cotton fabric,three plant dyes were extracted by Soxhlet extraction method,and the cationic modified cotton fabric was dyed with dye solution.Then,the dyeing properties of the three dyes under different dye dosage,dyeing temperature,dyeing time and pH value were explored and the optimal dyeing process conditions were determined.Finally,the color fastness properties of the three dyes under the optimal dyeing process conditions were tested.The results showed that the optimal dye dosage of artemisia argyi and purslane was 150 mL/L,and that of huaimi was 100 mL/L.The optimum dyeing temperature of artemisia argyi leaf was 50℃,while that of purslane and huaimi were 80℃and 70℃respectively.The optimal dyeing time of artemisia argyi and huaimi was 60 min,and that of purslane was 75 min.The optimal dyeing pH value of the three dyes was 7.The modified cotton fabric dyed with artemisia argyi,purslane and huaimi has good color fastness.