Four-layer seamed press fabric

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 7/10 (2006.01) D03D 11/00 (2006.01) D21F 7/08 (2006.01)

Patent

CA 2384836

An on-machine-seamable press fabric for the press section of a paper machine includes a multi-layered integrally woven base fabric having two systems of machine-direction yarns (32, 34) forming seaming loops (42, 44) along each of its two widthwise edges. A seaming spiral (52) is attached to the seaming loops in both rows at each of the two widthwide edges. The two seaming spirals are used to join the press fabric into endless form during installation on the press section of a paper machine. Such an arrangement facilitates the installation of the press fabric on the press section.

L'invention concerne un tissu de presse pouvant être cousu sur machine pour section de presse de machine à papier comprenant un tissu de base tissé entièrement, multicouche, présentant deux systèmes de fils (32, 34) en sens machine formant des boucles de couture le long de chacun de ses deux bords dans le sens de la largeur. Un élément hélicoïdal de couture est fixé aux boucles (42, 44) de couture dans les deux rangées à chacun des deux bords dans le sens de la largeur. Les deux éléments hélicoïdaux (52) de couture sont employés pour assembler le tissu de presse transformé en une forme continue pendant son installation sur la section de presse d'une machine à papier.

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