Patent ID: 6860969
Filing Date: 2005-03-01
Classification: D21F,Y10S

Abstract:
1. A papermaker's fabric, comprising top machine direction yarns, top cross machine direction yarns, bottom machine direction yarns, bottom cross machine direction yarns and stitching yarns, the fabric being formed in a plurality of repeating units, each of the repeating units comprising: a set of top machine direction yarns; a set of top cross machine direction yarns interwoven with the set of top machine direction yarns to form a top fabric layer; a set of four bottom machine direction yarns; a set of bottom cross machine direction yarns interwoven with the set of bottom machine direction yarns to form a bottom fabric layer; and a set of stitching yarns interwoven with the top and bottom fabric layers; wherein the bottom machine direction yarns and the bottom cross machine direction yarns are interwoven in a series of repeat units in which each of the bottom machine direction yarns passes below two nonadjacent bottom cross machine direction yarns to form bottom machine direction knuckles, each bottom machine direction knuckle being separated from one adjacent knuckle formed by that bottom machine direction yarn by two bottom cross machine direction yarns and separated from another adjacent knuckle by four bottom cross machine direction yarns; wherein each of the stitching yarns forms a binding knuckle with one of the bottom machine direction yarns between adjacent knuckles and each of the binding knuckles is located between the two cross machine direction yarns separating two adjacent bottom machine direction knuckles.