Ink-jet recording media having a microporous coating comprising cationic fumed silica and cationic polyurethane and methods for producing the same

摘要

Inkjet recording media for producing high quality images using color printers are provided. The media comprise a substrate material, such as a paper, coated with an ink-receptive composition comprising an aqueous dispersion of cationic fumed silica particles and cationic polyurethane resin. The dispersion comprises at least 60% by weight of cationic fumed silica particles, and at least 14% by weight of cationic polyurethane resin based on solids. The coated ink-receptive layer is free of surface defects and has good ink-absorption properties. The invention also includes ink-jet recording media comprising a substrate coated with an ink-receptive underlayer and an ink-receptive top layer. The resulting media may have a semi-glossy surface finish. The surface gloss may be enhanced further by calendering the coated layer.