Enhancing functional and dyeing properties of viscose fabric

摘要

Four new sulfonamide azo dyes were synthesized, characterized and utilized in simultaneous dyeing and resin finishing of viscose fabrics for enhancing their functional and dyeing properties. The results indicated that these dyes, irrespective of their concentration, brings about an improvement in the percent nitrogen, wrinkle recovery angle, homogeneous dyeability and UV protection rating values as well as antibacterial properties along with slight decrease of tensile strength of the treated fabrics. It has been also found that, irrespective of dye structure, increasing the dye concentration from 1.0 and up to 1.9% enhances the aforementioned properties accompanied with slight decrease in wrinkle recovery angle and lower fastness properties of the treated fabrics. Moreover, the treated fabrics were characterized through investigating their energy dispersive X-ray analysis.