灵菌红素的染色性能研究

A Study on Dyeing Properties of Prodigiosin Pigments

灵菌红素是一类含甲氧基吡咯骨架结构的天然色素,具有多种生物活性,难溶于水,易溶于乙醇,所以用乙醇与水的混合溶液作为灵菌红素染色的溶剂。本文研究了温度、浴比、pH值等因素对灵菌红素染羊毛、腈纶的染色动力学的影响,结果显示最佳染色工艺条件。由于灵菌红素对羊毛的染色牢度较低,进一步讨论了媒染剂对灵菌红素上染羊毛织物的影响,结果显示Al3+处理后的染色织物色光变化较小,皂洗牢度和干湿摩擦牢度均有提升。抗菌性实验说明用灵菌红素染色后的织物具有良好的抗菌性。

Prodigiosin is a natural pigment containing methoxypyrrole backbone structure with a wide range of biological activity. It was insoluble in water and soluble in ethanol, so the mixture of ethanol and water was used as dyeing solvent. The effects of temperature, pH and bath ratio on the kinetics of dyeing wool and acrylic fabrics were studied and the optimum condition of dyeing process were obtained. The effects of mordant on dyeing wool fabric were further discussed because the fastnesses of wool dyed with prodigiosion pigmont were low. The results showed that the color change of dyeing fabrics mordanted by Al^3＋ was lower, the rubbing fastness and soap washing fastness were both promoted by the treatment. Prodigiosin showed good anti-bacterial performance according to the test of theanti-bacterial properties of the dyed fibers .