EP 1548187 A2 20050629 - Method of making paper
Title (en)
Method of making paper
Title (de)
Verfahren zur Papierherstellung
Title (fr)
Procédé de fabrication de papier
Publication
Application
Priority
- US 74492603 A 20031222
- US 82395004 A 20040413
Abstract (en)
The disclosure relates to a method for making coated or uncoated paper that has small sized calcium carbonate on its surface. The calcium carbonate is placed on the paper web at the size press, by a spray or at a coating operation. The calcium carbonate can have a maximum mean average size of 200 nm. Another embodiment has a maximum mean average size of 100 nm. Another embodiment has a maximum mean average size of 50 nm. Different weight levels may be placed on the paper.
IPC 1-7
IPC 8 full level
D21H 19/38 (2006.01); D21H 17/63 (2006.01); D21H 17/66 (2006.01); D21H 17/67 (2006.01); D21H 19/36 (2006.01); D21H 23/22 (2006.01); D21H 21/16 (2006.01); D21H 21/52 (2006.01); D21H 23/28 (2006.01); D21H 23/50 (2006.01)
CPC (source: EP US)
D21H 19/385 (2013.01 - EP US); D21H 21/52 (2013.01 - EP US); D21H 23/28 (2013.01 - EP US); D21H 23/50 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1548187 A2 20050629; EP 1548187 A3 20061004; CA 2489608 A1 20050622; JP 2005179882 A 20050707; US 2005133184 A1 20050623; US 2005247421 A1 20051110
DOCDB simple family (application)
EP 04257802 A 20041215; CA 2489608 A 20041209; JP 2004369355 A 20041221; US 15541105 A 20050617; US 82395004 A 20040413