abstract |
FIELD: pulp-and-paper industry. SUBSTANCE: pulp contains, wt.-%: colophony glue, 0.4- 0.6; silica, 1.3-2.5; copolymer of acrylamide and N,N-dimethyl-N- hydroxyethylammonium metacrylate, 0.2-0.5; and fibrous materials, the balance. EFFECT: modified quality of paper and carton, chiefly of packing type. 1 tbl |