B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
92/21.6
B32B 5/06 (2006.01) B32B 5/08 (2006.01) D04H 13/00 (2006.01) D21F 7/08 (2006.01)
Patent
CA 1158086
Abstract of the Disclosure A papermakers wet felt comprising a three layer fabric having a first or lower layer which defines a machine roll contacting surface, a second or intermediate layer, and a third or top layer which defines a paper-receiving surface The lower layer is woven of machine direction yarns which are of much greater diameter than the cross machine direction yarns. The intermediate layer is also woven, and adds stability and strength to the felt while providing void areas for drainage. The top layer comprises a batt or fleece of non-woven batting material. Also disclosed is a method of making the papermakers felt wherein the lower and intermediate cloths are separately woven and then associated with each other so that the inner surface of the intermediate layer contacts the outer surface of the bottom layer. The associating of the two layers takes place on a conventional fiber locker or needling machine associated with a conventional stretching device. When both of the cloths have achieved substantially the same length, the non-woven web of synthetic fibers is needled into the two cloths through the use of the needling machine to produce the composite three-layered papermakers felt.
370315
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Porritts & Spencer Canada Inc.
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