Dyeing and fastness properties of poly (lactic) acid fibres: A review

Attention to biopolymers has been increased due to increase of the environmental awareness, crude oil price and challenges of earth warming. Because of the polymers derived from renewable sources, using these compounds have the lowest negative effects on the final products as comparing to oil-based polymers. One of the most important biocompatible and biodegradable polymer is polylactic acid PLA, which has been used in the textiles with different applications. In the present study, dyeing process and fastness properties of the PLA fibers were reviewed. Effects of dyeing condition such as, temperature, time, dye bath pH, dyes structure and dyeing at ultrasonic wave medium were considered. Also exhaustion values of the PLA and PET fibers were compared and dyeing fastnesses of PLA fibers were presented.