Seam design for a dryer fabric

Details Seam design for a dryer fabric Seam design for a dryer fabric

D - Textiles, Paper

21

F

D21F 7/10 (2006.01) D03D 11/00 (2006.01) D03D 13/00 (2006.01) D03D 15/00 (2006.01) D21F 1/00 (2006.01)

Patent

CA 2260865

A papermaker's fabric (10) having a smooth surface and a prolonged life includes flat machine-direction yarns (26, 28) which define the upper and lower surfaces thereof. The fabric has two layers of cross-machine direction yarns (18, 18', 22, 22'), each of which is interwoven with the flat machine direction yarns (26, 28). Other machine direction yarns (24), of round cross section, weave with the cross-machine direction yarns (18', 22') in the two layers to bind them together. At one of the two ends of the fabric, seaming loops (30) are formed by the round machine-direction yarns. At the other of the two ends, seaming loops (34) are formed by the flat machine-direction yarns (26, 28). The seaming loops (30, 34) are interdigitated with one another, when the two ends of the fabric (10) are brought together during installation on the paper machine, defining a passage through which a seaming pin or pintle (42, 50, 58) is directed to join the two ends (30, 34) together.

L'invention porte sur une toile (10), à surface lisse et de longue durée de vie, et comprenant des fils plats (26, 28) sens machine qui forment ses surfaces supérieure et inférieure. Cette toile comporte deux couches de fils (18, 18', 22, 22') sens travers qui sont tissés avec les fils plats (26, 28) sens machine. D'autres fils (24) sens machine, de section transversale ronde, sont tissés avec les fils sens travers (18', 22') des deux couches de façon à relier celles-ci. A l'une des deux extrémités de la toile, des boucles (30) de couture sont formées par les fils ronds sens machine. A l'autre des extrémités, des boucles de couture (34) sont formées par les fils plats sens machine (26, 28). Les boucles de couture (30, 34) sont entrecroisées lorsque les deux extrémités de la toile (10) sont réunies au cours de leur installation sur la machine à papier, et forment un passage par lequel une aiguille de couture (42, 50, 58) est dirigée pour assembler les deux extrémités (30, 34).

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