Production of paper, board and cardboard
作者： Norbert Sendhoff , Michael Kroener , Primoz Lorencak , Friedrich Linhart , Werner Auhorn
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摘要: Paper, board and cardboard are produced by shearing the paper stock, adding a microparticle system comprising cationic polymer finely divided inorganic component to stock after last stage before head box, draining with sheet formation drying sheets, process in which polyacrylamides, polymers containing vinylamine units and/or polydiallyldimethylammonium chloride having an average molar mass Mw of each case at least 500 000 Dalton charge density not more than 4.0 meq/g used as system.
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