Dyeing process of textile polyester fibers with ultrasonic influence

Polyester fabric was dyed with Disperse Red by using ultrasonic power. Authors researched effects of ultrasound on the fixation of the dye within the polyester fibers and color fastness to chemical and physical influences such as resistance to dry and wet friction, color fastness to washing. The comparative analysis was made with the results of dyeing polyester fabrics with disperse dyes by traditional technology. The results show that pretreatment of dyeing solutions with ultrasonic vibrations improves color fastness to physical and chemical influences, it can reduce the dyeing time. Recommended treatment regimen is the following: ultrasonic power 100 W, duration of exposure of 10 minutes.