Patent ID: 7299615
Filing Date: 2007-11-27
Classification: D01H

Abstract:
1. A method for twisting at least two yarn strands together into a twisted yarn product, comprising: providing a supply of the yarn strands; providing at least one fluid jet device having a controllable fluid blast; providing a rotatable feed roll; storing in a programmable controller data for control of the at least one fluid jet device and the rotatable feed roll in a manner suitable to generate a pattern made up of variations in at least one of the twist level and the direction of twist of a finished twisted yarn product along the length of the yarn; controlling the fluid blast from the at least one fluid jet device to effect a desired yarn twist on the yarn strands; controlling rotation of the feed roll to feed the yarn strands at a predetermined speed of travel between the supply of yarn strands, the at least one fluid jet device and a package of the finished twisted yarn product; and controlling the fluid blast and the rotation of the feed roll according to the data stored in the programmable controller to provide at least one of a first twist level and a first twist direction of the yarn for a first length of the finished twisted yarn product, and at least one of a second twist level and a second twist direction of the yarn for a second length of the finished twisted yarn product.