Voith Patent Gmbh

Matthew Ryan

Susanne Klaschka

Barbara Elmer

A process for preparing a seam area for a paper machine clothing (PMC) base fabric includes the steps of: forming the PMC base fabric by flat-weaving, the PMC base fabric including warp yarns extending in machine direction and weft yarns extending in cross machine direction and interwoven with the warp yarns, the weft yarns including first weft yarns and a second weft yarn, the second weft yarn being a multifilament yarn, the warp yarns, the first weft yarns, and the multifilament yarn being woven together on a loom in an original weaving process, the multifilament yarn being positioned in an anticipated seam area; and folding over the PMC base fabric, after weaving the multifilament yarn with the warp yarns, to form a seam loop of the PMC base fabric such that the multifilament yarn is a first one of the weft yarns on a sheet side of the seam loop.

Method for preparing a seam area for a PMC base fabric

A joining process for an endless or seamed press fabric, the joining process including the step of providing a woven base fabric having a plurality of monofilament yarns including warp yarns extending in a machine direction and weft yarns extending in a cross machine direction, the woven base fabric being cut along one of the weft yarns and having two opposing ends and two side edges. A predetermined number of the weft yarns are removed along each of the two opposing ends to free a plurality of cut ends of the warp yarns, fringing the ends. The plurality of free cut ends of the two opposing ends are interdigitated with each other and the cut ends opposing and adjoining one another are heat bonded to define a joint area.

Joining process for a papermachine clothing

A process for preparing a seam area for a PMC base fabric includes the steps of: providing a PMC base fabric including a plurality of warp yarns extending in a machine direction (MD) and a plurality of interwoven weft yarns extending in a cross machine direction (CD); removing a plurality of adjacent weft yarns from the PMC base fabric to define a window of warp yarns not interwoven with weft yarns, the plurality of warp yarns being interwoven with a plurality of weft yarns on either side of the window; folding over the PMC base fabric at the window such that each warp yarn substantially aligns with itself in the MD, and one or more weft yarns on one side of the window substantially align with a respective weft yarn on an opposite side of the window; and bonding together a portion of the PMC base fabric adjacent the window.

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Appleton, WI, United States of America

Matthew Ryan