mprovement of the Dyeing Properties of 100% Polyester Fabrics ViaChitosan Application

In this experimental study, it was aimed to research the possibilities of improving the dyeing properties of 100% polyester fabrics. For this purpose, the polyester fabrics were pretreated with sodium hydroxide and chitosan. The hydrophility tests, SEM-EDX, and FTIR-ATR analyses of the pretreated fabrics were done, and they were then dyed with acid dye at 90 degrees C. After dyeing processes, the CIEL*a*b* color values, color strength, fastness properties (to washing, water, perspiration, and rubbing) of dyed samples were investigated, and the bursting strength of the undyed and dyed samples was also tested. The results showed that it is possible to improve the dyeing properties of 100% polyester fabrics via chitosan application and that the polyester fabrics can be dyed with acid dyes at low temperatures after being cationized with chitosan following the sodium hydroxide application.