A novel reactive anti-ultraviolet finishing of cotton fabric based on N-dihydroxy ethylene cyanoguanidine

作者：Feng, Yajuan; Li, Daikun; Zhang, Fengxiu; Zhang, Guangxian^*

来源：Textile Research Journal, 2017, 87(14): 1722-1729.

DOI：10.1177/0040517516658515

• N-dihydroxy ethylene cyanoguanidine
• anti-UV finishing
• cotton fabric
• durability

This study reports a novel ultraviolet (UV) absorber, N-dihydroxy ethylene cyanoguanidine (NDEC), which was synthesized from dicyandiamide and glyoxal. The NDEC compound was characterized by Fourier-transform infrared spectrum and nuclear magnetic resonance. NDEC was grafted onto cotton fabric through covalent bonding by the pad-dry cure method. The optimal finishing conditions were that the mass concentration of NDEC was 5g/L, baking time 240s and temperature 140?. The UPF value of cotton fabric treated under optimal finishing conditions reached 50+ and was minimally reduced (to 47) after 50 laundry cycles. The breaking strength and thermostability of the original cotton fabric were preserved after treatment. Successful grafting of -CN and -C=N groups onto the treated fabric was confirmed in the Fourier-transform infrared spectrum. Meanwhile, the finished cotton fiber remained smooth, as confirmed by scanning electronic microscopy.

• 出版日期2017-9
• 单位西南大学