Patent ID: 7406985
Filing Date: 2008-08-05
Classification: D21F,Y10S

Abstract:
1. A papermaking screen for a sheet forming zone, comprising: a paper side having first transverse yarns; a machine side having second traverse yarns; pairs of adjacent longitudinal yarns alternating on said paper side to form a plain weave with said first transverse yarns, the yarns of each of said pairs forming first and second different crossings within one pattern repeat in extending between said first and second transverse yarns, said first and second crossings alternating, part of said second transverse yarns being bound by at least two of said longitudinal yarns within said one pattern repeat, said longitudinal yarns on said machine side bind two second transverse yarns within a machine-side pattern repeat by extending on outer sides thereof remote from said paper side; and two adjacent pairs of said longitudinal yarns forming two outer longitudinal yarns and two inner longitudinal yarns, said outer longitudinal yarns bind one part of said second transverse yarns without alternating between pairs of bound transverse yarns onto said paper side.