Abrading element for textile yarn - comprises bored rotary element with roughened surface

摘要

Appts for raising or abrading a textile yarn comprises a rotary element bored axially, with a roughened surface which extends from the central hole so that the yarn, passing to collection rollers, is rubbed against this surface. The surface may contain abrasive grains, or take the form of lines, points or saw-teeth protruding from the face. The rotary element ensures that the yarn is abraded at all points on its surface.