D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 7/08 (2006.01) D21F 1/00 (2006.01) D21F 3/02 (2006.01) D21F 7/10 (2006.01)
Patent
CA 2151329
Methods for closing a seam in a paper processing belt having a coating of polymeric resin material require the covering of the seam on the uncoated side of the belt with an encapsulating material, so that the seam will have compression properties substantially identical to those of use of the remainder of the belt. In one method, a viscous paste obtained by mixing a polymeric resin material with a blowing agent is used. Following installation of the fabric, or belt, on a paper machine by closing its pin seam with a pintle, the seam region on the non-paper side of the fabric or belt is impregnated with the viscous paste. The seam region is then heated to a temperature to activate the blowing agent and to create a foam from the paste. The foam fills voids in the seam region, and may pass out through the slit in the coating over the seam. Raising the temperature further cures the foam and may glue the slit closed. In other methods, a pre-foamed polymeric resin may be used to impregnate the seam region, or the seam region may be covered with a solid foam strip of a polymeric resin or a fibrous strip of fibrous batt material, either of which may be secured to the seam region by an adhesive. In each case, the belt so seamed may be used as a transfer belt or long nip press (LNP) belt, or in other paper processing applications.
Cooke Henry M.
Lotti-Fassnacht Robin
Miller Lawrence G.
Albany International Corp.
Cooke Henry M.
Lotti-Fassnacht Robin
Miller Lawrence G.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Method of seam closure for sheet transfer and other paper... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of seam closure for sheet transfer and other paper..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of seam closure for sheet transfer and other paper... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1560835