CATIONIZED POLYSACCHARIDE PRODUCT AS ADDITIVE FOR PULP (VERSIONS), METHOD FOR USING THE SAME AND METHOD FOR PAPERMAKING

摘要

FIELD: pulp-and-paper industry, in particular, additive for pulp.;SUBSTANCE: product contains first polysaccharide having at least one first cationic substituent comprising aromatic group, and second polysaccharide having at least one second cationic substituent free of aromatic group. Method for producing of paper from water suspension containing cellulose fibers and, optionally, fillers involves adding cationized polysaccharide product to water suspension; forming and dehydrating water suspension on fabric, said cationized polysaccharide product being produced by providing reaction between first polysaccharide with at least one first aromatic agent, and second polysaccharide with at least one second agent free of aromatic group; mixing resultant polysaccharides.;EFFECT: improved dehydration and retention capacity through utilization of cationized polysaccharide product.;25 cl, 11 tbl, 10 ex