| 摘要 |
A wrapped yarn spinning unit equipped with a delivery device for a sliver, a hollow spindle that carries a binding thread to be wrapped about the sliver and rotating together with the hollow spindle, a take-off device for the wrapped yarn, a feed tube between the delivery device and the hollow spindle and an air line connected to the feed tube at a distance downstream of the inlet opening of the feed tube and adapted to be connected to a vacuum source; a twist-producing device is further provided within the area of the inlet opening of the hollow spindle.
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