Warp loop seam

Details Warp loop seam Warp loop seam

D - Textiles, Paper

21

F

D21F 7/08 (2006.01) B32B 5/26 (2006.01) D03D 15/00 (2006.01) D04H 13/00 (2006.01) D21F 1/00 (2006.01) D21F 7/10 (2006.01)

Patent

CA 2253048

An on-machine-seamable multi-axial press fabric for the press section of a paper machine is made from a base fabric layer assembled by spirally winding a fabric strip in a plurality of contiguous turns, each of which abuts against and is attached to those adjacent thereto. The resulting endless base fabric layer is flattened to produce first and second fabric plies joined to one another at folds at their widthwise edges. Crosswise yarns are removed from each turn of the fabric strip at the folds at the widthwise edges to produce seaming loops. The first and second fabric plies are laminated to one another by needling staple fiber batt material therethrough. The press fabric is joined into endless form during installation on a paper machine by directing a pintle through the passage formed by the interdigitation of the seaming loops at the two widthwise edges.

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