EP 1321570 A2 20030625 - A multi-layer paper web and a method of forming it
Title (en)
A multi-layer paper web and a method of forming it
Title (de)
Mehrschichtige Papierbahn und Verfahren zu ihrer Blattbildung
Title (fr)
Bande de papier à couches multiples et procédé pour sa formation
Publication
Application
Priority
- SE 0104397 A 20011220
- US 34126901 P 20011220
Abstract (en)
A method of making a multilayer paper web, wherein at least two paper sheets (24a,b) are formed and dried separately to a dry content of no more than 80% by weight, imparting a three-dimensional pattern of alternating raised and recessed portions in the paper sheets during drying, combining the paper sheets into a multilayer web, in which void volumes (32) are created between the raised and recessed portions of the combined sheets and drying the multilayer web (24). <IMAGE>
IPC 1-7
IPC 8 full level
D21F 9/00 (2006.01); D21F 11/00 (2006.01); D21F 11/04 (2006.01); D21F 11/14 (2006.01)
CPC (source: EP)
D21F 9/006 (2013.01); D21F 11/006 (2013.01); D21F 11/04 (2013.01); D21F 11/14 (2013.01); D21F 11/145 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 02445182 A 20021218