PAPER PRODUCTION PROCESS FEATURING ALTERNATING CATIONIC AND ANIONIC POLYMER ADDITIONS

摘要

The present application relates to a process for the production of a paper product, which process comprises: providing a furnish comprising fillers and fibers; subjecting said furnish to polymer treatment, in which an excess of polymers is added to the furnish by alternating cationic and anionic polymer additions in at least three steps; dewatering the furnish on a wire to form a fiber web; pressing said fiber web; drying the fiber web to form said paper product, said furnish containing fillers in such an amount that the paper product obtained by the process contains at least 15% by weight of fillers.