| abstract |
Stable, aqueous dispersion containing silicon dioxide mixed-oxide particles produced by flame hydrolysis with aluminium oxide or titanium dioxide as the mixed-oxide component and with a BET specific surface area of 5 to 600 m2/g, which have a negative zeta potential and a dissolved cationic polymer with a mass average molar mass of less than 100000 g/mol, the dispersion having a positive zeta potential. Coating pigment produced with this dispersion, which contains at least one hydrophilic binder. An ink-absorbing medium, which contains this coating pigment. |