METHOD OF ACCELERATING DEHYDRATION RATE AND IMPROVING RETENTION OF FINES IN PAPERMAKING PROCESS

摘要

FIELD: paper-and-pulp industry. SUBSTANCE: invention relates filler-free fibrous pulp containing no silica and bentonite-type particles and can be used in manufacture of daily paper. To paper pulp are added: cationic or amphoteric starch, cationic polyelectrolyte, and highmolecular anionic polyacrylamide copolymer, consecutively or in combinations. EFFECT: improved process conditions. 7 cl, 8 tbl, 8 ex