Polyvinyl alcohol/superfine wool powder blend films were prepared to improve the dyeing properties of polyvinyl alcohol (PVA) film, and PVA/superfine wool powder blend filaments were produced to investigate the spinningability of PVA/superfine wool powder blend solution. The average size of superfine wool powder was 2.01μm. SEM microphotographs showed good compatibility between superfine wool powder and PVA matrix. With the increase in superfine wool powder content, the dye uptake, a* value and K/S value of PVA/superfine wool powder blend films increased steadily. It was worth noting that the dyeing properties of blend films were almost similar with that of superfine wool powder when powder content was over 33. 3%. In addition, K/s value of blend films containing over 33. 3% superfine wool powder content was higher than that of superfine wool powder.
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