METHOD OF PREPARING SIZING DISPERSION, SIZING DISPERSION, AND METHOD OF SIZING PAPER Russian patent published in 2000 - IPC

FIELD: paper-and-pulp industry. SUBSTANCE: sizing suspensions of liquid reactive sizing substance are prepared by dispersing reactive sizing substance in the form of pure liquid in aqueous dispersion of bentonite or another anionic material containing microparticles. These dispersions can be used for bulk sizing, for example when manufacturing paper with retained microparticles in the form of anionic phase containing the latter. Dispersion can also be used for surface sizing. EFFECT: achieved application versatility. 22 cl, 6 tbl, 9 ex