Utilization of Rice Straw as a Source of Biomolecules for Sustainable Multifunctional Finishing Vis a Vis Dyeing of Wool

ABSTRACT

Rice straw is a rich source of biomolecules which can be utilized in functionalization of textile fibers. In the present work, rice straw extract was utilized in functional coloration of wool fabric. The dyed wool samples were characterized by EDX, SEM, TGA and FTIR spectroscopy. The dyed wool fabrics were assessed for color parameters, fastness, antibacterial activity, UV protection, and flame retardant properties. The results showed that dyeing with rice straw extract in the presence of inorganic metal salts produces different elegant hues with acceptable fastness properties. Wool samples dyed with mordant ions also demonstrated potent antibacterial activity against S. aureus, high UV protection, and flame retardant effects. Our results clearly pointed out that rice straw extract could be used as an inexpensive yet effective textile dye and would be a feasible alternative for some synthetic agents in the development of protective clothing for various end uses.

摘要

稻草是一种丰富的生物分子来源，可用于纺织纤维的功能化，目前，稻草提取物被用于羊毛织物的功能染色.用EDX、SEM、TGA和FTIR对染色羊毛样品进行了表征.对染色后的羊毛织物进行了色参数、色牢度、抗菌活性、紫外线防护和阻燃性能的评定.结果表明，在无机金属盐存在下，稻草浸膏染色可产生不同的优雅色调，并具有可接受的染色牢度.用媒染剂离子染色的羊毛样品对金黄色葡萄球菌也有很强的抗菌活性、高紫外线防护和阻燃作用.我们的研究结果清楚地指出，稻草萃取物可以作为一种廉价而有效的纺织染料，并且可以作为一些合成剂在开发各种最终用途的防护服中的一种可行替代品.

KEYWORDS:

• Rice straw
• color
• antibacterial
• UV protection
• wool fabrics
• flame retardant

关键词:

• 稻草
• 颜色
• 抗菌
• 紫外线防护
• 羊毛织物
• 阻燃剂

Acknowledgments

Authors gratefully acknowledge the Science and Engineering Research Board (SERB, India) for ECRA funding (project File no. ECR/2017/001041).

Additional information

Funding

This work was supported by the Science and Engineering Research Board [ECR/2017/001041].