Papermaking belt and method of making the same using...

Details Papermaking belt and method of making the same using... Papermaking belt and method of making the same using...

D - Textiles, Paper

21

F

D21F 1/10 (2006.01) B29C 35/10 (2006.01) B29C 39/14 (2006.01) B29C 39/18 (2006.01) B29C 43/22 (2006.01) B29C 43/28 (2006.01) D03D 3/04 (2006.01) D21F 1/00 (2006.01) D21F 11/00 (2006.01) D21H 15/00 (2006.01) B29C 35/08 (2006.01)

Patent

CA 2083600

A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits which extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by applying a coating of photosensi- tive resinous material to a reinforcing structure which has opaque portions, and then exposing the photosensitive resinous materi- al to light of an activating wavelength through a mask which has transparent and opaque regions and also through the reinforcing structure. A process for making paper products is also disclosed which involves applying a fluid pressure differential from a vac- cum source through the belt to a partially-formed embryonic web of papermaking fibers. The fibers in the embryonic web are def- lected into the conduits of the papermaking belt by the vaccum pressure while the papermaking belt and the embryonic web travel over the vaccum source. Following the deflection, the paper web is impressed with the paper side network of the belt, and dried to form the final product.

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