| 摘要 |
An on-machine-seamable multi-axial press fabric, for the press section of a paper machine, is made from a first base fabric 22 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 40, 42 joined to one another at folds at their widthwise edges 36. Crosswise yarns are removed from each turn of the fabric strip at the folds at the widthwise edges to produce unbound sections 44 of lengthwise yarns 26. The press fabric includes a second base fabric 52 comprising lengthwise and crosswise yarns, the lengthwise yarns 56 forming seaming loops 60 along two widthwise edges of fabric 52. Fabric 52 has a length, exclusive of the loops, equal to the first fabric ply and the second fabric ply of the first base fabric. Fabric 52 is disposed between ply 40 and 42, loops 60 extending outwardly between the unbound sections 44. At least one layer of staple fibre batt material 66 is needled into one of the plies 40, 42 and through base fabric 52 to the other of the first and second fabric plies. The press fabric is joined into endless form during installation on a paper machine by directing a pintle 62 through the passage formed by the interdigitation of the seaming loops 60 at the two widthwise edges 36. |
