| 摘要 |
Sliver is drafted immediately prior to its introduction into a supply passage to an open-end-spinning device, and the supply passage housing is rotatable to impart twist to the sliver so that the fibers in such sliver will be straightened and held in substantially parallel relationship until the sliver end is subjected to separation into individual fibers by the spinning apparatus. The inner mouth of the supply passage is located closely adjacent to the spinning chamber fiber collection face so that the fibers will be positively moved by the spinning forces, such as centrifugal, suction or electrostatic forces, to maintain the fibers in substantially parallel relationship, even though separated from the sliver in the spinning chamber. The sliver is gripped at the edge of the inner supply passage mouth to facilitate twisting of the sliver in the passage and to hold the sliver to facilitate separation of the individual fibers from the sliver end extending beyond the supply passage mouth in response to spinning forces. Such gripping may be effected simply by the configuration of the passage mouth which bends the sliver to frictionally engage the mouth edge, by roughening the mouth edge, or by providing a positive clamp glidably engaging the sliver.
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