| abstract |
Process for the manufacture of paper, cardboard and cardboard in the presence of an aqueous suspension of components containing finely divided fillers, the finely divided fillers being coated, at least in part, with water-soluble amphoteric copolymers, characterized in that, in addition to the aqueous suspension of components containing finely divided fillers, at least one cationic and / or amphoteric polymer is added to the fiber suspension which does not contain carboxylic acid esters unsaturated with quaternized amino alcohols as a structural element. |