湿蒸对羊毛微观结构的影响  

Wet steaming effect on microstructure of wool

作　　者：陈改君 朱若英[1] 谢丰[1] 开吴珍 

机构地区：[1]天津工业大学纺织学院,天津300387 [2]中国纺织工业联合会科技发展部,北京100742

出　　处：《毛纺科技》2016年第4期30-34,共5页Wool Textile Journal

基　　金：国家科技支撑计划项目典型纺织品短流程低耗印染技术开发资助(2014BAE01B00)

摘　　要：针对活性染料短流程湿蒸染色工艺的问题,模拟汽蒸的湿热环境,通过红外光谱、X射线衍射仪等设备全面分析羊毛织物在湿蒸处理后的结构变化。结果表明:红外光谱显示,汽蒸会造成羊毛纤维蛋白质大分子中的部分二硫键断裂以及羊毛纤维微观结构的变化;X射线衍射分析显示,汽蒸处理后羊毛纤维的结晶度下降;吸湿放湿与扩散系数测试显示,汽蒸处理提高了羊毛纤维的平衡回潮率和吸湿滞后值以及对染料的扩散系数,有助于羊毛染色性能的改善。Wool fiber was treated in a hot and humid environment simulated the conditions of wet steaming dyeing process of reactive dyes,and alternation of wool structure treated by steam evaporation was investigated using infrared spectroscopy,X ray diffraction analysis. Infrared spectra showed that steam treatment caused the cleavage of disulfide bond in the wool molecules and microstructure change of wool fiber,while crystallization of wool fiber decreased after steaming treatment was detected by X ray diffraction analysis. Steaming treatment improved the wool fiber water regain and hygroscopic hysteresis value and diffusion coefficient of dyes,leading to improvement of dyeing properties.

关 键 词：汽蒸 羊毛织物 结构 染色性能 

分 类 号：TS193.5[轻工技术与工程—纺织化学与染整工程]