Braided base fabrics for shoe press belts

Details Braided base fabrics for shoe press belts Braided base fabrics for shoe press belts

D - Textiles, Paper

21

F

D21F 3/02 (2006.01)

Patent

CA 2245734

A resin-impregnated endless belt for a long nip press or calender of the shoe type has a base fabric in the form of a multilayer braided structure wherein each of the constituent layers are connected to those adjacent thereto by at least one interlocking yam to inhibit interlayer delamination. The base fabric is in the form of an endless loop, at least the inner surface of which is coated with a polymeric resin material, such as polyurethane. The polymeric resin material impregnates the structure of the base fabric, rendering it impermeable to oil and water.

L'invention concerne une courroie sans fin imprégnée de résine, destinée à une presse ou à une calandre à ligne de contact allongée du type à sabot; ladite courroie comprend un tissu de support ayant la forme d'une structure tréssée multicouche; chaque couche constitutive de ladite structure est connectée aux couches adjacentes par au moins un fil enchevêtré, ceci pour empêcher la séparation des couches. Le tissu de support représente une bande sans fin dont au moins la surface interne est enduite d'une substance à base de résine polymère telle que la polyuréthanne. La substance à base de résine polymère imprègne la structure du tissu de support et le rend ainsi étanche à l'eau et à l'huile.

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