D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
92/10
D21C 9/00 (2006.01) D21D 1/20 (2006.01) D21H 15/04 (2006.01)
Patent
CA 1313599
Abstract of the Disclosure Mechanical treatment of a pulp slurry of up to 50% O. D. consistency by dewatering and compacting the pulp permanently twists and kinks individual fibers to a degree that is substantially irreversible when they are subsequently subjected to papermaking process steps. The preferred device for imparting such permanent twisting and kinking is a plug screw feeder. Pulp that has been so treated exhibits increased desired drainability in the wet section of a papermachine. Such treated pulp also loses water vapor more easily in the dryer section than untreated pulp, and correspondingly results in less energy consumption in the dryer section of a papermachine. Pulp treated in accordance with the invention also exhibits increased absorbency. Tissue or other soft paper products produced from softwood pulp treated in accordance with the invention exhibit significantly increased softness over such untreated softwood pulp. Pulp treated in accordance with the invention is also useful in enhancing properties, for example bulk, in other paper products.
597145
Potlatch Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
Pulp treatment methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pulp treatment methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulp treatment methods will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1167448