Method for producing paper, paperboard, and cardboard

摘要: The inventive method for producing paper, paperboard and cardboard by removing interfering substance-containing water from a paper pulp in the presence of polymers containing vinylamine units whose mean molecular mass Mw is equal or greater than one million. Said consists preparing, at first high-density pulp, introducing doses quantity least type polymer which contains million degree hydrolysis ranges 1 to 20 mol % diluting said adding until low-density obtained dewatering pulp. invention also relates use homo-or copolymers N-vinyl carboxylic acid amides having ranging form an additive substances order reduce deposits formed sieving, pressing drying areas machines.