Patent ID: 7008512
Filing Date: 2006-03-07
Classification: D21F,Y10S,Y10T

Abstract:
1. A papermaker's fabric comprising: a top layer, a middle layer, and a bottom layer of cross-machine direction (CD) wefts; a system of machine-direction (MD) yarns interwoven with the top, middle, and bottom layers of CD wefts; wherein the CD wefts in the top layer are grouped into twinned pairs to produce a non-uniform spacing between wefts in the top layer; wherein the CD wefts in the middle layer provide extra stability in the CD; and one of the CD wefts in each top-layer pair being vertically stacked with the CD wefts in the middle layer and bottom layer; the other CD weft in each top-layer pair vertically offset from the stacked middle and bottom layer CD wefts, thereby increasing drainage of the fabric.