A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers, A substrate support supports a CNT forming substrate, a winding unit continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, a status monitor monitors a state of the CNT yarn, and a supply state changing mechanism changes a supply state of the CNT fibers, based on a result of monitoring by the status monitor.

A sliver feeder for a textile machine having at least one pick-up unit and at least one feeder unit. In order to improve the handling of fiber material and to increase the quality of a sliver to be transferred to a pre-compactor and thereby increase the process stability and thereby save resources, the pick-up is designed and arranged to pick up a sliver, in particular from a can of the textile machine, and to transfer the sliver to the feeder unit, wherein the feeder unit has a takeover section and is designed and arranged in such a way as to transfer the sliver to a sliver guide, in particular to a pick-up section of a pre-compactor.