Patent ID: 6571441
Filing Date: 2003-06-03
Classification: D04H

Abstract:
A nonwoven fabric making apparatus having X and Y axes perpendicular to each other, said apparatus comprising a plurality of nozzles adapted to eject streams of high pressure fluid against at least one surface of a fibrous web continuously traveling in a direction of said Y-axis to entangle component fibers of said web, said nozzles being arranged to form at least a first nozzle array inclined at a predetermined angle with respect to said Y-axis, wherein projections of centers of adjacent nozzles of said first nozzle array onto said X-axis are spaced one from another by a projected distance P given byP=A1 sin &agr;whereA1 is an actual distance between said centers of said adjacent nozzles, and &agr; is a declination angle of the first nozzle array with respect to said Y-axis, and wherein said distance P is in a range of from about 0.1 to about 0.25 mm.