Patent ID: 7441566

Claim:
A triple layer papermaker's forming fabric comprising: a set of top CMD yarns; a set of top MD yarns interwoven exclusively with the top CMD yarns to form at least part of a top fabric layer having a papermaking surface; a set of bottom CMD yarns; a set of bottom MD yarns interwoven exclusively with the bottom CMD yarns to form at least part of a bottom fabric layer having a machine side surface, the bottom MD yarns forming bottom MD knuckles as they pass below bottom CMD yarns; and a pair of additional MD yarns disposed on either side of each top MD yarn, wherein the first yarn of each pair of additional MD yarns weaves exclusively in the top fabric layer and the second yarn of each pair of additional MD yarns completes the weave of the first yarn of each pair of additional MD yarns on the papermaking surface and also weaves with the bottom fabric layer beneath a bottom CMD yarn to form a bottom MD stitching yarn knuckle so as to bind the top fabric layer and the bottom fabric layers together; wherein each bottom stitching yarn knuckle is formed below a bottom CMD yarn under which an adjacent bottom MD yarn forms a bottom MD knuckle.