JOURNAL OF TEXTILE RESEARCH ›› 2016, Vol. 37 ›› Issue (07): 109-114.

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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

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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