Natural Bio-Source Materials for Green Dyeing of Cellulosic Yarns

ABSTRACT

There is a growing literature investigating to use natural materials for dyeing textiles on account of their low toxicity, eco-friendliness, sustainability, and better biodegradability. In this way, this article presents the results of a study into the applications of tamarind hull and marzangoosh in a fully eco-friendly manner to dye cotton yarns. The effect of the main dyeing conditions (dye concentration, bath pH, time, and temperature) on the color efficiency (K/S) was investigated with a reflectance spectrophotometer. Results indicate that at optimized conditions, pre-mordanting yarns with tamarind hull as an eco-friendly mordant lead to the formation of an insoluble complex on cotton yarns followed by increased dye adsorption, which enhances the light and wash fastness properties. The SEM photographs showed that pre-mordanting cotton yarns with tamarind hull increase the surface porosity. Finally, based on our observations, it may be claimed that cotton yarns subjected to both pre-mordanting and dyeing exhibited a good antibacterial activity and the procedure proposed in this study seems to be of potential use for the production of medical textiles without adverse environmental impacts.

摘要

由于天然材料的低毒性、生态友好性、可持续性和较好的生物降解性，越来越多的文献研究将其用于纺织品染色. 本文介绍了罗望子壳和马赞古什在棉纱染色中的应用研究结果. 用反射分光光度计研究了染料浓度、浴pH、时间、，，，温度等主要染色条件对染色效率（K/S）的影响. 结果表明，在优化的工艺条件下，罗望子壳作为一种环保媒染剂对棉纱进行预媒染剂处理，可在棉纱表面形成不溶性络合物，增加染料的吸附量，从而提高棉纱的耐光性和耐洗性. SEM扫描电镜照片显示，罗望子壳预媒介处理棉纱，面孔隙率增加. 最后，根据我们的观察，可以说经过预媒介处理和染色的棉纱显示出良好的抗菌活性，并且本研究中提出的程序似乎可以用于生产医疗纺织品而不会对环境造成不利影响.

KEYWORDS:

• Medical textiles
• natural dyeing
• natural fibers
• tannins
• flavonoids

关键词:

• 医用纺织品
• 天然染色
• 天然纤维
• 单宁
• 类黄酮