Manufacture of endless belts for use in extended nip press

Details Manufacture of endless belts for use in extended nip press Manufacture of endless belts for use in extended nip press

B - Operations, Transporting

23

P

26/198

B23P 15/00 (2006.01)

Patent

CA 1201883

ABSTRACT An endless belt for use in an extended nip press is manufactured by providing an endless base fabric, mounting the base fabric about a heated cylinder and second roller, introducing a polymeric sheet between the base fabric and the cylinder, the polymeric material having a lower melt point than the base fabric, and applying tension on the belt by means of the second roller. The cylinder is heated such that the polymeric material melts and is forced into the base fabric by the pressure generated due to the tension on the base fabric, the polymeric material forming a smooth surface on the side of the base fabric facing the cylinder, The depth of penetration of the polymeric material into the base fabric is controlled by controlling the heat and pressure used in order to provide voids on the second side of the fabric.

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