Press felt with improved drainage

Details Press felt with improved drainage Press felt with improved drainage

D - Textiles, Paper

21

F

D21F 7/08 (2006.01) D21F 1/00 (2006.01)

Patent

CA 2282053

A three layer papermaking press section press felt in which the first layer comprises a core fabric which contains the mechanical loads placed upon the press felt, the second layer comprises a layer of absorbent material, typically a batt needle punched onto the core fabric, and the third layer comprises a porous layer attached to the surface of the absorbent layer. The third layer receives the wet paper web. The three layer press felts remove from about 3% to at least about 5% more water from the wet paper web under pressure in a press section in comparison with the same press felt to which the third porous layer has not been added.

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