纺织学报 ›› 2016, Vol. 37 ›› Issue (07): 109-114.

• 染整与化学品 • 上一篇    下一篇

苯并三唑结构紫外线吸收剂对蚕丝耐光稳定性能的影响

  

  • 收稿日期:2015-08-20 修回日期:2016-03-22 出版日期:2016-07-15 发布日期:2016-07-15

Influence of benzotriazole UV absorber on photostability of silk

  • Received:2015-08-20 Revised:2016-03-22 Online:2016-07-15 Published:2016-07-15

摘要:

为提升蚕丝织物的耐光稳定性能,采用苯并三唑结构紫外线吸收剂UV-FAST W(简称UVFW)对其进行处理,并将处理蚕丝进行紫外光照实验,测试了蚕丝的光照黄变历程,分析了UVFW浓度对蚕丝光黄变与光脆损的影响,探讨了UVFW处理蚕丝的湿牢度问题,同时还研究了UVFW对染色蚕丝颜色指标与光色牢度的影响。结果表明:经1%浓度UVFW处理的蚕丝,光稳定性能得到较大程度的提升,继续增加UVFW浓度,蚕丝的光稳定性能提升不明显,且UVFW浓度增加将降低蚕丝的初始白度;UVFW处理蚕丝的湿处理牢度需进一步提升,水洗后蚕丝光稳定性能明显下降;UVFW对染色蚕丝的颜色指标与光色牢度均产生影响,但影响程度与染料有关。

关键词: 蚕丝, 光稳定性, 紫外线吸收剂, 黄变, 牢度

Abstract:

To enhance the photostability, silk fabric was treated with the benzotriazole structure ultraviolet absorber UV-FAST W (UVFW for short). The photoyellowing course of silk was measured and analyzed during the ultraviolet irradiation. Effects of concentration of UVFW on photoyellowing and on phototendering of silk fabric were analyzed. Then, the wet fastness of silk treated with UVFW was discussed. At last, the UVFW was used to the dyed silk with acid dye and its impact on the color index and light fastness was discussed. The results show that the photostability of silk treated with 1% (owf) UVFW was improved obviously, but the photostability was no longer improved obviously when the UVFW concentration continued to increase, and the whiteness of treated silk will be reduced with the increasing of UVFW concentration. The wet fastness of silk treated with UVFW need to be improved further, because the photostability of silk treated with UVFW was reduced significantly after washing same times. The color index and light fastness of dyed silk will be affected by UVFW, but effects were different and related to dye structure.

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