Use of cationic copolymers in manufacture of paper, paperboard, tissue, etc

The present invention relates to the use of cationic copolymers having a standard viscosity of > = 2 mPas and a charge density of up to 5 meq/g obtained by polymerizing (meth) acrylamide and cationic monomers for reducing the production of fibrous webs, such as paper, cardboard, cardboard, cardboard, cardboard, cardboard or cardboard, etc. Use of anionic species and/or 5 anionic particulate materials in an aqueous phase of a thick fibrous feedstock having a consistency > = 20 g/l in tissues or the like. The invention also relates to a method for manufacturing fibrous webs such as paper, paperboard, tissue and the like using the cationic copolymer. 本发明涉及通过使(甲基)丙烯酰胺和阳离子单体聚合获得的具有≥2mPas的标准粘度和至多5meq/g的电荷密度的阳离子共聚物用于减少在制造纤维幅材如纸、纸板、纸巾等中在具有≥20g/l稠度的稠纤维原料的水相中的阴离子物质和/或5阴离子颗粒材料的用途。本发明还涉及使用该阳离子共聚物制造纤维幅材如纸、纸板、纸巾等的方法。