Patent ID: 7906187

Claim:
A coated paper, suitable for printing ink jet inks thereon and providing a photographic-like print, comprising: (a) a substrate comprising a polyethylene-extruded photobase; (b) a first ink-receiving layer disposed on said substrate and comprising a first cationic silica consisting of amorphous silica, mixed with a first cationic-inducing compound and a binder, wherein said amorphous silica has a primary particle size of about 5 to 30 nm and an aggregated particle size between about 50 and 500 nm; and (c) a second gloss-enhancing layer disposed on said first ink-receiving layer and comprising a second cationic silica consisting of spherical silica having a particle size of about 25 to 100 nm, mixed with a second cationic-inducing compound, said first cationic-inducing compound being the same or different than said second cationic-inducing compound; wherein said first and second layers are formed by a process comprising: mixing said amorphous silica with said first cationic-inducing compound and said binder to form a first coating mixture wherein said amorphous silica has a positive surface zeta potential; mixing said spherical silica with said second cationic-inducing compound and 0-5% binder (by weight of said spherical silica and binder) to form a second coating mixture wherein said spherical silica has a positive surface zeta potential; and applying said first and second coating mixtures to said substrate simultaneously using one pass application with a two-layer coating head, wherein said coated paper has enhanced gloss and waterfastness.