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Mordant Free Dyeing and Functionalization of Wool Fabrics with Biocolorants Derived from Apocynum venetum L. Bast
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-07-30 , DOI: 10.1021/acssuschemeng.0c04757 Xuanxuan Xu 1, 2 , Jixian Gong 1, 2 , Zheng Li 1, 2 , Qiujin Li 1, 2 , Jianfei Zhang 1, 2, 3 , Li Wang 4 , Jingfeng Huang 4
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-07-30 , DOI: 10.1021/acssuschemeng.0c04757 Xuanxuan Xu 1, 2 , Jixian Gong 1, 2 , Zheng Li 1, 2 , Qiujin Li 1, 2 , Jianfei Zhang 1, 2, 3 , Li Wang 4 , Jingfeng Huang 4
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Biomass has emerged as a sustainable and renewable resource for dyestuff production. There is an increasing interest in biocolorants, especially in pigments from herbs. Nevertheless, hazardous metal mordants need to be used in conventional dyeing procedures to achieve the desired exhaustion rate and colorfastness. In this study, a novel dyeing strategy was presented for wool fibers with flavonoid pigments extracted from the bast of Apocynum venetum L. (A. venetum) based on in situ polymerization and covalent fixation of the dyes on the fiber. A new dyeing process was developed using NaOH as a dye fixative in the absence of mordants. The dyed fabric obtained by employing a relatively low NaOH concentration of 1.0 g/L in the dyebath, at a constant dyeing temperature of 100 °C, a dyeing time of 90 min, and a fixation time of 30 min, had a significant improvement in the color strength as well as the antibacterial activity against the assayed microorganisms, in addition to the good rubbing and washing colorfastness. Moreover, it was found that the wool dyed under optimum conditions suffered almost no damage from the tensile test results. This biodyeing strategy provided a new way for the sustainable wool dyeing process.
中文翻译：
媒染剂染色自由和羊毛织物的功能化与Biocolorants从衍生罗布麻属麻
生物质已成为染料生产的可持续和可再生资源。人们对生物着色剂，尤其是草药色素的兴趣日益增加。尽管如此，在常规的染色程序中仍需要使用有害金属媒染剂，以达到所需的精疲力尽和色牢度。在这项研究中，提出了一种新的染色策略，用于从罗布麻（Apocynum venetum L.）（A. venetum）韧皮中提取的类黄酮颜料对羊毛纤维进行染色。）是基于染料在纤维上的原位聚合和共价固定。在没有媒染剂的情况下，使用NaOH作为染料固定剂开发了一种新的染色工艺。在100℃的恒定染色温度，90分钟的染色时间和30分钟的固定时间下，通过在染浴中使用相对较低的NaOH浓度为1.0 g / L而获得的染色织物，其染色性能有了显着改善。除了良好的摩擦和洗涤色牢度外，还具有色强度以及对被测微生物的抗菌活性。此外，发现在最佳条件下染色的羊毛几乎不受拉伸试验结果的损害。这种生物染色策略为可持续的羊毛染色工艺提供了新的途径。
更新日期：2020-08-24
中文翻译：
媒染剂染色自由和羊毛织物的功能化与Biocolorants从衍生罗布麻属麻
生物质已成为染料生产的可持续和可再生资源。人们对生物着色剂，尤其是草药色素的兴趣日益增加。尽管如此，在常规的染色程序中仍需要使用有害金属媒染剂，以达到所需的精疲力尽和色牢度。在这项研究中，提出了一种新的染色策略，用于从罗布麻（Apocynum venetum L.）（A. venetum）韧皮中提取的类黄酮颜料对羊毛纤维进行染色。）是基于染料在纤维上的原位聚合和共价固定。在没有媒染剂的情况下，使用NaOH作为染料固定剂开发了一种新的染色工艺。在100℃的恒定染色温度，90分钟的染色时间和30分钟的固定时间下，通过在染浴中使用相对较低的NaOH浓度为1.0 g / L而获得的染色织物，其染色性能有了显着改善。除了良好的摩擦和洗涤色牢度外，还具有色强度以及对被测微生物的抗菌活性。此外，发现在最佳条件下染色的羊毛几乎不受拉伸试验结果的损害。这种生物染色策略为可持续的羊毛染色工艺提供了新的途径。
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