Patent ID: 8202585

Claim:
An inkjet printing system, comprising: a) an inkjet printer; b) an ink composition; and c) an inkjet recording media comprising a support, and coated on the support in order from the support, a porous base layer and a porous uppermost layer, wherein: 1) the porous base layer comprises a binder and clay particles treated with a cationic surface modifier to provide a zeta potential with a positive sign, the clay having a median particle diameter less than 1.0 micron; 2) the porous uppermost layer comprises particles of a semi-metallic or metallic oxide, either having or treated to have a zeta potential with a positive sign, the particles having median secondary particle diameter less than 500 nm; and 3) the ratio of the millimole equivalents of cationic modifier to grams of clay particles in the base layer is greater than 0.1.