| abstract |
The invention relates to a method for producing corrugated board from a plurality of paper layers each having a grammage of 70 to 200 g/m 2 , wherein at least one paper layer is obtained by a method comprising (A) based on dry paper stock 0.25 to 5% by weight of at least one cationic polymer containing vinylamine units and (B) 0 to 5% by weight, based on dry paper stock, of at least one polymeric anionic compound are added to the paper stock, which is filtered water and sheet forming, the resulting web is coated with (C) 0.1 to 3% by weight, based on dry stock, of at least one starch, the polymeric anionic compound being selected from the group consisting of A polymeric anionic compound (B1) and a polymeric anionic compound (B2) obtainable by copolymerization of a monomer mixture comprising, preferably consisting of: a) at least one selected from Monomers (a) from acrylamides and N - vinylamides of the formula ( I ), wherein R and R represent H or C to C alkyl, b) at least one monoethylenic bond containing an acid function unsaturated monomers of formula and/or their alkali metal, alkaline earth metal or ammonium salts (b), and c) optionally one or more monoethylenically unsaturated monomers (c), which are combined with monomer (a) is different from (b), and d) optionally one or more compounds having at least two ethylenically unsaturated double bonds in the molecule, and the polymeric anionic compound (B2) is said polymeric Hydrolyzed products of anionic compounds (B1) in which some or all of the amide residues in the polymeric anionic compounds (B1) have been hydrolyzed to amino groups; and also corrugated cardboard obtained therefrom and its use for producing packaging cartons from corrugated cardboard the use of, |