| abstract |
FIELD: paper-and-pulp industry. n SUBSTANCE: : process comprises preparation of paper pulp, flocculation of pulp, shear force-involving mechanical treatment of pulp, second flocculation of pulp, drainage of pulp on the screen to form sheet, and subsequent drying of sheet. Flocculation is carried out by adding water-soluble optionally having intrinsic viscosity above 3 dl/g. Polymer is further characterized by oscillation delta tangent value at 0.005 Hz above 1.1. n EFFECT: improved drainage and retention on moving screen, and formation process. n 10 cl, 1 dwg, 4 tbl, 4 ex |