Patent ID: 8071185

Claim:
A recording sheet for ink jet printing having coated onto a support at least one ink-receiving layer consisting of at least one binder and at least one dispersion of surface modified silicon dioxide, wherein the surface of the silicon dioxide consists of the reaction products of a compound of trivalent aluminum selected from the group consisting of aluminum chloride, aluminum nitrate, aluminum acetate, aluminum formiate, aluminum chlorohydrate and mixtures thereof with at least one aminoorganosilane; wherein said dispersion of surface modified silicon dioxide primary particle size is between 1 nm and 30 nm; a quantity of said compound of trivalent aluminum is between 0.1 percent by weight and 20 percent by weight relative to the quantity by weight of said silicon dioxide; a quantity of said aminoorganosilane is between 0.1 percent by weight and 10 percent by weight relative to the quantity by weight of said silicon dioxide; and a molar ratio of said compound of trivalent aluminum and said aminoorganosilane is between 0.1 and 2.0.