EP 1957709 A1 20080820 - METHOD OF PRODUCING PAPER AND CARDBOARD
Title (en)
METHOD OF PRODUCING PAPER AND CARDBOARD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER UND KARTON
Title (fr)
PROCÉDÉ DE PRODUCTION DE PAPIER ET DE CARTON
Publication
Application
Priority
- FI 2006000406 W 20061205
- FI 20051256 A 20051205
Abstract (en)
[origin: WO2007065969A1] A method of producing paper or cardboard using a bleached cellulosic pulp, which contains hemicelluloses. According to invention a significant portion, at least 5 wt-%, preferably about 8 to 30 wt-%, of the hemicelluloses are removed from the pulp. The hemicelluloses taken from one bleached pulp can then be transferred to another resulting in two pulps with varying properties, one pulp with properties related to low hemicelluloses content in the fiber wall and the other with properties related to high hemicelluloses content on the fiber surface.
IPC 8 full level
D21C 9/00 (2006.01); D21C 5/00 (2006.01); D21H 17/00 (2006.01)
IPC 8 main group level
D21C (2006.01)
CPC (source: EP FI US)
D21C 3/22 (2013.01 - FI); D21C 9/002 (2013.01 - EP US); D21H 17/005 (2013.01 - EP US); D21C 5/005 (2013.01 - EP US)
Citation (search report)
See references of WO 2007065969A1
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 LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007065969 A1 20070614; BR PI0619442 A2 20111004; EP 1957709 A1 20080820; FI 122975 B 20120928; FI 20051256 A0 20051205; FI 20051256 A 20070606; US 2008295986 A1 20081204; US 2011168345 A1 20110714
DOCDB simple family (application)
FI 2006000406 W 20061205; BR PI0619442 A 20061205; EP 06830916 A 20061205; FI 20051256 A 20051205; US 201113065130 A 20110314; US 9620306 A 20061205