D - Textiles – Paper – 06 – N
Patent
D - Textiles, Paper
06
N
D06N 3/00 (2006.01) B29C 39/18 (2006.01) B29C 70/22 (2006.01) B29D 29/00 (2006.01) D21F 3/02 (2006.01) D21F 7/08 (2006.01) D21G 1/00 (2006.01)
Patent
CA 2308011
A resin-impregnated endless belt for a long nip press or calender of the shoe type, or for other papermaking and paper-processing applications, has an open base fabric in the form of an endless loop with an inner surface, an outer surface, a machine direction and a cross-machine direction. A coating of a polymeric resin is on the inner surface of the base fabric. The polymeric resin impregnates and renders the base fabric impermeable to liquids, and forms a layer on the inner surface thereof. The coating is smooth and provides the belt with a uniform thickness. The belt is manufactured by mounting the base fabric about a first roll and a second roll, which are separated to place the base fabric under tension in the machine direction. A conveyor belt is placed within the base fabric at a preselected distance from the inner surface thereof. The conveyor belt and base fabric are run at a common speed, and, starting at a lateral edge of the base fabric, polymeric resin is dispensed onto the base fabric over the conveyor belt from a dispenser. The conveyor belt and dispenser are moved transversely across the base fabric as the latter is coated in a spiral fashion.
Mcgahern Desmond
Albany International Corp.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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