Patent ID: 6722116
Filing Date: 2004-04-20
Classification: B29C,B65H,D02J,D04H

Abstract:
A fiber bundle manufactured by holding a plurality of flat fiber bundles of non-twisted filaments arranged in a first direction in an at least partly overlapped relationship or in a parallel and adjoining relationship at two points spaced apart from each other in said first direction, and opening and rotating the fibers at a plurality of positions along the width of the fibers by injecting gas into the fiber bundles between said two points at a plurality of positions viewed in a second direction transverse to said first direction, across the fiber bundles sequentially from one edge thereof toward the other edge thereof, to cause the adjacent filaments to be entangled with each other and joined together in a flat condition due to relative widthwise movement between the fiber bundles and the air jet wherein the gas injected encompasses a region having a width narrower than that of the fiber bundle.