Menetelmä massalietteen valmistamiseksi, massaliete ja paperi

摘要

The invention relates to a method for preparing aqueous furnish to be used in paper or paper board manufacturing. In the method, filler and/or fibres are treated with cationic polyelectrolyte and nanofibrillated cellulose. By means of the invention, the strength of the paper and the retention of the fillers in paper can be improved. The invention also relates to a furnish prepared by the method according to the invention, and a paper or a paper board manufactured from the furnish.