COMPOSITIONS AND METHODS OF PREPARATION AND USE OF DISPERSIONS Russian patent published in 2004 - IPC

FIELD: printing materials. SUBSTANCE: invention relates to dispersions, which can be, in particular, used for jet printing on paper. Paper-sizing composition includes agent and at least one hydrophobically modified water-soluble polymer with average-viscosity molecular weight about 20000 or less. Hydrophobic modification of polymer comprises introducing at least one side alkyl chain having at least about 8 carbon atoms. Polymer is cellulose ether, for example methylcellulose and hydroxypropylcellulose. Treatment of paper comprises adding above-indicated composition to paper near size press. EFFECT: stabilized homogeneity of preliminarily mixed paper additives, prevented excess absorption, capillary absorption, and spreading of water or ink. 86 cl, 13 tbl, 6 ex