| 摘要 |
FIELD: textiles, paper.SUBSTANCE: method of production of paper pulp for making filled kinds of paper with use of calcium carbonate as the filler comprises preparing suspensions of milled cellulose and calcium carbonate, adding to them of the predetermined amounts of the modifying agent in the form of nano powders of oxide or hydroxide of aluminium or their mixtures, mixing the dispersions to obtain a fibrous mass, and adding to it of the gluing component and the auxiliary agent to obtain the paper pulp. As a gluing component the alkylketene dimer is used, and as an auxiliary agent the cationic starch is used in amounts of 0.3-0.4, and 0.5-0.7%, based on dry substance in the paper pulp.EFFECT: increased degree of retention of the filler.1 tbl, 5 ex |
