Patent ID: 7128810
Filing Date: 2006-10-31
Classification: D21F,Y10S,Y10T

Abstract:
1. An anti-rewet press fabric for dewatering a fibrous web in the press section of a papermachine, said fabric having an inner surface and an outer surface comprising: a first layer, said first layer being a surface layer on the outer surface for supporting said fibrous web; a second layer, said second layer being a barrier layer beneath said surface layer and having a higher flow resistance in a thickness direction going from the inner surface to the outer surface; said second layer being a polymeric sheet with a plurality of self supporting inclusions therethrough for the passage of water from said fibrous web and being attached to said surface layer; and each self supporting inclusion being tapered having a top opening adjacent the surface layer and a bottom opening at a distance away from the surface layer with the bottom opening being smaller than the top opening so as to impede liquid flow back to the surface layer after the press fabric exits a press nip.