Spiral construction for a long nip press belt

Details Spiral construction for a long nip press belt Spiral construction for a long nip press belt

D - Textiles, Paper

21

F

D21F 3/02 (2006.01) D21F 1/66 (2006.01) D21F 7/08 (2006.01)

Patent

CA 2067715

A belt for use on a long nip press for dewatering a fibrous web may be manufactured by winding an elongated strip onto a pair of process rolls to form a closed helix. Adjacent coils of the closed helix are bound to one another with an adhesive. The elongated strip includes a reinforcing web coated on one side with a uniformly smooth coating of a polymeric resin. The other side of the reinforcing web is coated with another polymeric resin of higher hardness value, and is provided with grooves. The elongated strip is wound onto the process rolls to produce a belt with a grooved outer surface. The method facilitates the manufacture of belts of a variety of widths and lengths.

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