Dyeing properties of PVA/superfine wool powder blend filaments

摘要

Polyvinyl alcohol/superfine wool powder blend filaments were prepared to improve the dyeing properties of polyvinyl alcohol (PVA) filaments. The average size of superfine wool powder was 2.0 lum. SEM microphotographs showed good compatibility between superfine wool powder and PVA matrix. The PVA/superfine wool powder blend solution showed good spinningability. With the increase in superfine wool powder content, the dye uptake, a* value and K/S value of PVA/superfine wool powder blend filaments increased steadily. It was worth noting that the dyeing properties of blend filaments were almost similar with that of superfine wool powder when powder content was 33.3%.