Bobbin for spinning machine

Abstract

The present invention relates to a bobbin for a spinning machine in which a bushing is installed on an inner peripheral wall of the bobbin in the spinning machine in such a fashion as to be inserted around a peripheral portion of the spindle tip, wherein the bushing is fabricated by an alloy composed of 10~80 wt.% Cu, 10~80 wt.% Ni, and is coated with tetra-fluoro polyethylene at an inner peripheral surface thereof and has a thickness not more than 0.3 mm, so that strength of the bushing is great despite its thin thickness (below 0.3 mm), twist strength can be also enhanced due to relative increase of the bobbin thickness, and occurrence of ammonia gas due to friction with the spindle during the rotation of the bushing can be suppressed to thereby decrease occurrence of cracks and enhance enduring property.