Patent ID: 6616812
Filing Date: 2003-09-09
Classification: D21F,Y10S,Y10T

Abstract:
A press unit for dewatering a fiber web, said press unit comprising:first and second opposing press elements, said first press element and said second press element together forming a nip therebetween; at least one anti-rewet fabric configured for carrying the fiber web through said nip, each said anti-rewet fabric having a first fabric side and a second fabric side, each said anti-rewet fabric including: at least one air distribution fabric layer, one air distribution fabric layer being configured for contacting the fiber web; a perforated film layer, said perforated film layer being comprised of one of a polyester film and a plastic film, said perforated film layer defining a plurality of holes therethrough separated from each other by a perforate distance, said perforated film layer having a first film side and a second film side, said first film side being one of laminated and attached to said one air distribution fabric layer, said second film side being directed toward one of said first and second press elements; and said air distribution fabric layer being structured and arranged with said perforated film layer to spread air in said air distribution fabric layer a distance greater than said perforate distance.