Patent ID: 8267125
Filing Date: 2012-09-18
Classification: D21F

Abstract:
1. A papermaking forming fabric that comprises a series of repeat units, each of the repeat units comprising: a set of top machine direction (MD) yarns; a set of top cross-machine direction (CMD) yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom MD yarns; a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer; a set of stitching yarns interwoven with the top and bottom fabric layers; wherein the bottom MD yarns and bottom CMD are woven such that floats formed by the bottom CMD yarns under the bottom MD yarns are at least 1.8 mm in length; and wherein a first ratio of top MD yarn coverage area to bottom MD yarn coverage area is less than 0.5; and wherein a second ratio of bottom CMD yarn cross-sectional area to bottom MD yarn cross-sectional area is greater than 2.0.