METHOD AND APPARATUS FOR MANUFACTURING A TORQUE STACKED TORQUE STRETCHING YARN, WHICH IS WRAPPED ON A ROTARY SPOOL UNDER TORQUE.

摘要

The supplied strand is provided with a permanent twist due to the rotating balloon and a superimposed false twist due to a false twist device prior to winding onto the bobbin package. Prior to winding on the package, the false twist is eliminated so that the resultant roving has relatively high breaking strength for handling purposes while remaining draftable.