EP 1490551 A2 20041229 - IMPROVEMENTS TO PROCESSES FOR MANUFACTURING PAPER PRODUCTS BY IMPROVING THE PHYSICO-CHEMICAL BEHAVIOUR OF THE PAPER STOCK
Title (en)
IMPROVEMENTS TO PROCESSES FOR MANUFACTURING PAPER PRODUCTS BY IMPROVING THE PHYSICO-CHEMICAL BEHAVIOUR OF THE PAPER STOCK
Title (de)
VERBESSERTE VERFAHREN ZUR HERSTELLUNG VON PAPIERPRODUKTEN DURCH VERBESSERUNG DES PHYSIKALISCH-CHEMISCHEN VERHALTENS DES PAPIERSTOFFS
Title (fr)
AMELIORATIONS APPORTEES AUX PROCEDES DE FABRICATION DE PRODUITS EN PAPIER PAR AMELIORATION DU COMPORTEMENT PHYSICO-CHIMIQUE DE LA PATE A PAPIER
Publication
Application
Priority
- FR 0202880 A 20020307
- IB 0300818 W 20030303
Abstract (en)
[origin: WO03074788A2] The subject of the present invention is a process for manufacturing paper from cellulose fibres dispersed in an aqueous medium, in which process carbon dioxide is injected into the stock directly or via an aqueous vehicle prior to an addition of chemical additives so as to control the ionic demand and the zeta potential downstream, and especially in the step of adding the additives. In particular, the additives are added to the mixing chest (2) and carbon dioxide is added to the white water on the output side of the brocke pulper (15) or to the short system (9).
IPC 1-7
IPC 8 full level
D21H 23/10 (2006.01); D21H 17/65 (2006.01)
CPC (source: EP)
D21H 23/10 (2013.01); D21H 17/65 (2013.01)
Citation (search report)
See references of WO 03074788A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03074788 A2 20030912; WO 03074788 A3 20031218; AR 038884 A1 20050202; AU 2003214490 A1 20030916; AU 2003214490 A8 20030916; CA 2477950 A1 20030912; CN 1639420 A 20050713; EP 1490551 A2 20041229; FR 2836938 A1 20030912; FR 2836938 B1 20040806
DOCDB simple family (application)
IB 0300818 W 20030303; AR P030100763 A 20030306; AU 2003214490 A 20030303; CA 2477950 A 20030303; CN 03805406 A 20030303; EP 03710066 A 20030303; FR 0202880 A 20020307