FIELD: textiles, paper.
SUBSTANCE: method comprises grinding the cellulose to a given degree of fineness and preparing suspensions of the ground cellulose and calcium carbonate. Then, the suspension of calcium carbonate is processed by the modifying agent, the suspensions of fibre and the processed calcium carbonate are mixed to obtain the fibre mass. The fibre mass is added to the sizing component and the auxiliary material to produce paper pulp. The modifying agent is used as nanopowders of oxide or hydroxides of aluminium or their mixtures with its amount of 0.5-2.5% by weight of calcium carbonate. The sizing component is used as alkyl ketene dimer, and the auxiliary material is used as cationic starch in an amount of 0.3-0.4 and 0.5-0.7%, based on dry substance in the paper pulp respectively.
EFFECT: increase in degree of retention of filler.
2 cl, 5 ex, 1 tbl
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