D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
92/14.1
D21F 1/00 (2006.01) D21F 9/00 (2006.01)
Patent
CA 1186539
METHOD AND APPARATUS FOR PRODUCING A MULTILAYER PAPER WEB Abstract of the Disclosure In the production of multi-ply paper in a twin- wire former of the kind in which the wires define a curved forming zone, preferably a former of roll type with a smooth-faced forming roll, a substantially improved layer purity is produced in that the discharges from a first and at least succeeding portion of the curved forming zone are collected separately as different fractions. The first fraction collected nearest the multilayer headbox is returned in a first separate circuit to be used for diluting a first high consistency pulp to a first stock of headbox consistency, from which stock a first layer is to be formed directly on the outer wire in relation to the curved forming zone. At least a portion of a second frac- tion collected at a greater distance from the multilayer headbox is returned in a second separate circuit to be used for diluting a second high consistency pulp to a second stock of headbox consistency, from which a second layer is to be formed superimposed on the first layer.
416667
Gowling Lafleur Henderson Llp
Kmw Aktiebolag
LandOfFree
Method and apparatus for producing a multilayer paper web 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 and apparatus for producing a multilayer paper web, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing a multilayer paper web will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1238273