Patent ID: 7744959

Claim:
A method of preparing a porous media substrate, comprising: forming an aqueous dispersion comprising at least one water soluble coating formulation additive comprising aluminum chlorohydrate; adding 30-100 nm silica or alumina particulates to said additive dispersion, to form a dispersion comprising unflocculated silica or alumina particulates associated with said additive, and comprising unreacted additive or undesired electrolytes; combining a polymeric binder with said additive-associated silica or alumina particulates; removing at least 25-75% of the unreacted additive or undesired electrolytes; and applying a refined coating composition comprising said additive-associated metal or semi-metal oxide particulates and said binder to a media substrate to form an ink-receiving layer having a glossy porous surface and enhanced compatibility with inkjet ink components.