Filt vid papperstillverkning, förfarande för tillverkning av en filt vid papperstillverkning samt förfarande för att avvattna en våt pappersbana

摘要

The invention is directed to a papermaking machine in which the wet paper web is supported by the press section felt as it is transferred from the press section to the dryer section of the machine, thereby preventing sagging and possible breakage of the web. According to the invention, the felt is mounted for endless travel and passing around at least a first of said dryer rolls, said felt being unsupported over a substantial distance extending between said press rolls and said first dryer roll and said web being carried on the upper surface of the felt as said felt travels through said distance. As the wet paper web is supported in the draw, sagging and possible breaking of the web is prevented in this area. As thee tendency for breakage is minimized, product loss is minimized and downtime of the machine is correspondingly decreased.