D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 7/08 (2006.01) D21F 3/04 (2006.01) D21F 7/10 (2006.01)
Patent
CA 2482762
A method of manufacturing an improved press felt, and an improved press felt. The press felt comprises a base structure having at least a first surface on a fiber-web side and an opposite second surface, and at least one batt fiber layer attached to at least the first surface of the base structure to form a web- side surface of the press felt. At least the web-side surface of the press felt is impregnated with a dispersion of one or more polymer materials and water for compacting the structure of the press felt and for additionally attaching the batt fiber layer. The structure of the press felt is porous for receiving water and has an air permeability of at least 2 m3/m2min, 100 Pa. At least the web-side surface of the press felt is ground smooth after the compacting.
L'invention concerne un procédé de production d'un feutre de presse, une section de presse et un feutre de presse. Le feutre de presse comprend une structure de base (11), une couche de fibres isolant (12) attachée à une première surface (B), côté tissu, de la structure de base. En outre, la structure du feutre de presse est compactée par traitement avec un matériau polymère au moins du côté de la première surface de feutre (B). La surface du feutre peut être lisse après un traitement au polymère.
Kirby Eades Gale Baker
Metso Fabrics Oy
Tamfelt Oyj Abp
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