Dyeability of Nanofibers with Reactive, Vat and Disperse Dyes

Colorful nanofibers were prepared through electrospinning technique followed by dyeing with different reactive dyes by comparing different dyeing techniques such as ultrasonic as well as conventional (padding method). Excellent color yield and color fastness were achieved through proper optimization conditions in ultrasonic treatment. Nanofibers exhibited smooth and bead free morphology. Two different polymers were selected for electrospinning, i.e. cellulose acetate and nylon-6. Preparation of cellulose nanofibers included electrospinning of cellulose acetate following deacetylation under alkaline conditions. Results suggested that dyes conferred improved color yield on the basis of K/S values. Deacetylation was also confirmed through FTIR. The resulting nanofibers can serve better choice for advanced apparel applications.