Ringless spinning of polymer fibre yarns

摘要

Fibre-polymer blend yarns are spun by a ringless spinning method comprising method extruding a polymeric material into fibre formed the formed fibres being passed immediately into the nips formed by two interlocking fluted or grooved rollers. Fibrous material consisting of staple fibres is passed into the nips simultaneously, the mixture emerging being passed along V shaped grooves where heat is applied to raise the temp. of the mixture to a point where the polymer is in a plastic condition, but below the polymer melting point. While in this condition the formed strand or tape is given a twist to give the fibre a helical twist. The whole is then cooled in a twisted condition and wound up on a collecting roll. The thermoplastic is suitably a polyamide, polyolefin, acrylic etc.