| 摘要 |
<p>Friction open-end spinning process, wherein the fibres of the feeding fibre sliver (3), once discretized, are sucked by a suction slot on a revolving twister element, provided with perforated surface (17), to feed the free of the yarn being formed, characterized in that the fibres are fed in direction parallel to the free end (29) of the yarn (23) being formed, are kept under an adjustable tension throughout the twisting operation, and are subjected to a progressively increasing twist, from the open end of the end of the yarn being formed onwards.
<??>The device embodying the above process substantially uses as the twister element a revolving flat disc (13) provided with perforations (17) arranged according to an annulus, which cooperates with a sucking slot (19), the edge of which, constituting the yarn formation line, is positioned according to a chord of said disc. </p> |
