PAPER PULP FOR MANUFACTURE OF DAILY PAPER Russian patent published in 1997 - IPC

FIELD: production of daily paper. SUBSTANCE: paper pulp is prepared from, % by weight: cellulose 10-15; wood pulp. Wood pulp used in the process is the mixture of pulps obtained from wood chips exposed to accelerated electrons provided at dosage of 0.3-0.7 Mrad and pulp obtained from untreated wood chips, with treated and untreated wood pulp ratio ranging from 1:1 to 9: 1. Sulfate bleached coniferous or sulfite unbleached coniferous cellulose is used in the process. Thermomechanical wood pulp or chemical-thermomechanical wood pulp may be also used to obtain paper pulp. EFFECT: increased efficiency, simple composition and improved quality of daily paper. 3 cl, 1 tbl