To satisfy the many requirements of our daily life, complex textiles that are both functional and beneficial have been successfully designed and developed. This research investigates the design of bamboo charcoal/spandex (BC/S) complex yarns, fabricated with a blend of spandex and bamboo charcoal polyester textured yarn, which possess superior elastic recovery. The expansion multiples of the spandex was 1.5 - 3.5, the wrap counts are 2 - 4.5 turns/cm, and the speed of the rotor twister was 4000 - 12000 rpm. When the speed of the rotor twister was between 4000 and 12000 rpm, the expansion multiple was 1.5 and the elastic recovery rate was maintained at 93% or above. Furthermore, the far infrared emissivity of BC/S complex knitted fabric was over 0.9, but descended with the lamination number. The BC/S complex knitted fabric also contained an anion count of 356 anions/cc.
Journal of Engineered Fibers and Fabrics,7(1):106-113.