PAPER MANUFACTURE METHOD Russian patent published in 2001 - IPC

FIELD: pulp-and-paper industry. SUBSTANCE: method involves mixing basic water flow containing cellulose filaments and filler with diluting water flow in pressure box of papermaking machine to produce resultant water flow; discharging the latter onto grid and dehydrating for producing paper web. At least one component providing improved water retention is introduced into basic flow, and additive providing slower dehydration or additive selected from group containing nonionic and anion-exchange polymers is introduced into diluting water flow. EFFECT: improved quality of produced paper by providing uniform specific weight through whole width of paper web. 11 cl, 1 ex