Production and consumption of mélange yarns are gradually increasing due to their natural multi-colors and fashionable effects. This study aims to produce a mélange yarn from Egyptian organic cotton fiber from the Giza 86 genotype. All unwashed cotton fibers are pretreated with Reactive Blue 160, C.I: 137160 by scouring or scouring bleaching in three different depth shades. Different dyeing methodologies such as infrared and microwave techniques were used compared to conventional exhaust dyeing methods. The impact of uncleaned and cleaned cotton fiber on the mechanical, color measurements, and fastness properties characteristics was evaluated. Better yarn quality at the optimum condition concerning yarn evenness, imperfections, strength, elongation, and hairiness index was achieved. Statistical analysis shows that a significant effect of the fiber blends ratio on shade depth and various fiber properties.
