Patent ID: 6308507
Filing Date: 2001-10-30
Classification: D01H

Abstract:
A method of making a twisted textile yarn comprising the steps of:(a) separating a fiber strand consisting of a multiplicity of textile fibers by feeding said fiber strand into contact with a fiber-separating rotor into individual fibers;(b) drawing said individual fibers against a perforated fiber collecting surface by applying suction through perforations in said surface to continuously collect the individual fibers as parallel and drawn-out fibers into a sliver without twisting of said sliver on said surface, and in which:(b.sub.1) the collected individual fibers are assembled into a fiber package on an upstream zone of said surface, and(b.sub.2) the fiber package is reduced in cross section at a downstream zone of said surface;(c) continuously advancing the untwisted sliver from said fiber collecting surface to another location; and(d) twisting with a ring spinning apparatus the sliver at said other location to consolidate said sliver into a yarn so that twist is imparted to said sliver initially at said other location.