Patent ID: 11952716
Assignee: FELTRI MARONE S.P.A.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 0:
1. A triple papermaking fabric, having at least one fabric repeating unit formed by warp yarns extending in machine direction and weft yarns extending in cross machine direction, the fabric repeating unit comprising:
a set of top MD yarns;
a set of top 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 binding yarns extending in cross machine direction and arranged in pairs between respective consecutive top CMD yarns; the binding yarns being interwoven with the top MD yarns and binding the top layer with the bottom layer;
wherein:
the fabric repeating unit consists of twelve top MD yarns, three top CMD yarns, eight bottom MD yarns, three bottom CMD yarns, and four binding yarns;
the top CMD yarns are interwoven only with the top MD yarns and do not interweave with the bottom MD yarns; and the bottom CMD yarns are interwoven only with the bottom MD yarns and do not interweave with the top MD yarns;
the binding yarns of each pair are interwoven with respective different top MD yarns, and the binding yarns, together, of the pair are interwoven with all the top MD yarns;
the binding yarns of each pair bind respective different bottom MD yarns, and each binding yarn of the pair binds only one bottom MD yarn;
in each pair of binding yarns a first binding yarn is alternately interwoven with five top MD yarns, passing alternately over three even top MD yarns and under two odd top MD yarns; and a second binding yarn is alternately interwoven with other five different top MD yarns passing alternately over respective even top MD yarns and under respective odd top MD yarns.