Vacuum spinning of roving

Details Vacuum spinning of roving Vacuum spinning of roving

D - Textiles, Paper

01

H

118/33, 118/7

D01H 3/00 (2006.01) D01H 1/115 (2006.01)

Patent

CA 2005018

ABSTRACT A method, and the product of the method, is disclosed which relates to the production of roving using vacuum spinning techniques. Specifically, a fiber mass, or sliver , is drafted through a drafting zone and passed into a hollow, rotatable shaft , the shaft having a central through passageway and a plurality of radially oriented orifices . The shaft is mounted in a housing to which a vacuum is applied as the fiber mass passes through the rotating shaft. Trailing free ends of a minor portion of the fibers are pulled into the orifices and, as the linear movement of the fibers continues, are pulled back out of the orifices and are wrapped about the remaining core fibers to form a roving.

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