FIELD: paper-and-pulp industry.
SUBSTANCE: invention relates to pigment coating materials suitable in manufacture of coated paper, cardboard, and other cellulose materials. Coating material composition contains aqueous dispersion of pigment, binding agent, fluorescent bleaching substance, and water-soluble polymer. The latter is obtained from water-soluble ethylenically-unsaturated monomer of monomer mixture, contains 90-100 mol % of hydrophilic, mainly nonionic recurring units and 0-10 mol % of anionic recurring units, and is characterized by average molecular mass from 50 000 to 500 000. Invention also discloses coated paper and cardboard products as well as above-indicated water-soluble polymer.
EFFECT: optimized rheological properties of composition and improved optical properties of coating.
10 cl, 13 tbl, 4 ex
| Title | Year | Author | Number |
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