Conveyor felt for paper making and a method of manufacturing...

D - Textiles – Paper – 21 – F

Patent

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Details

28/9, 92/21.6

D21F 7/08 (2006.01) D04H 13/00 (2006.01) D06N 7/00 (2006.01)

Patent

CA 1186540

Abstract of the Disclosure A conveyor felt for conveying a paper web through a press section of a paper machine, comprising a support fabric (1) formed by a yarn structure and fibre bat lauer (2) needled to the support fabric at least on one side thereof. The felt is, with the exception of the surface portion (4) of the fibre bat layer facing the web, filled with a filling material (3) so that the felt is completely air impermeable and has a chamois-like surface (2a). A barrier layer is formed in the fibre bat layer for preventing the filling material from penetra- ting into the surface facing the web. The barrier layer is obtained by calendering the surface of the fibre bat layer facing the web so as to make it smooth and compact or by providing in the fibre bat layer a fine-fibered fibre bat layer or a filtering intermediate layer on the side of the surface facing the web. The filling of the felt prevents blowing and rewetting at a conveying speed of up to 1000 m/min although the conveyor felt has a chamois-like surface facing the web. (Figure 1)

416930

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