纺织学报 ›› 2011, Vol. 32 ›› Issue (8): 62-66.

• 染整与化学品 • 上一篇    下一篇

媒染剂对茶色素染色棉纤维性能的影响

李凤艳1,刘丽华2   

  1. 1. 天津工业大学纺织学院
    2. 中国国际贸易促进委员会纺织行业分会
  • 收稿日期:2010-08-02 修回日期:2011-01-17 出版日期:2011-08-15 发布日期:2011-08-15
  • 通讯作者: 李凤艳 E-mail:lfyever@126.com
  • 基金资助:

    校级

Tea dyeing of cotton fibers with different mordanting agent

  • Received:2010-08-02 Revised:2011-01-17 Online:2011-08-15 Published:2011-08-15

摘要: 选择单宁酸、醋酸锌和硫酸铝钾为媒染剂,采取后媒染的方式,用绿茶萃取液对棉纤维进行染色,研究了染浴pH值、媒染剂用量对棉纤维染色性能的影响,并以染色纤维在水浴中放置不同时间后,残液的透光率下降率表示纤维的染色牢度。利用TM-1000扫描电子显微镜表征染色前后纤维的微观结构,并测试了媒染前后纤维的力学性能。结果表明:醋酸锌作为媒染剂,其染色纤维相应的K/S值最大,但染色牢度相对较差;单宁酸染色后纤维的表面仍清晰可见棉纤维特有的沟槽结构,醋酸锌和硫酸铝钾染色后的纤维表面沉积了一层不溶性络合物;媒染后棉纤维的断裂强力略有下降,酸性条件下染色下降更为明显,断裂伸长率呈现一定幅度的上升趋势。

Abstract: The aqueous tea solution extracted from green tea was used to dye cotton fibers by post-mordanting method with tannic acid, Zn(CH3COOH)2, and KAl(SO4)2 as mordanting agents. The effect of pH value of dye bath and mordant concentration on the dyeing of fibers were analyzed. The transmittance decrease percentage of liquor was also tested after dipping the dyed fibers with a certain time. TM-1000 was used to analyze the microstructure of fiber samples. In addition, the strength of fibers before and after dyeing were also tested. The results showed that the K/S value was the maximum but the color fastness was inferior when dyed with Zn(CH3COOH)2 as a mordanting agent. The characteristic groove structure was clearly seen in the surface of tannic acid dyed cotton fibers. Insoluble complex was deposited on the surface of Zn2+ and Al3+ dyed fibers. In comparison with the cotton fibers before dyeing, the strength decreased especially dyed in acid condition, and elongation increased for the dyed fibers.

中图分类号: 

  • TS193.6
[1] 罗孝勇 付少海 王春霞 田安丽 张霞. 超细分散染料的制备及影响转移印花效果的因素[J]. 纺织学报, 2012, 33(11): 86-90.
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