Patent ID: 7828933

Claim:
A coated sheet for web offset printing which is hot-air dried or calendered and comprises: a base paper, a coating layer formed on the base paper, and a surface layer formed on the coating layer, wherein said coating layer comprises a pigment and an adhesive, and said surface layer comprises (i) at least one surface-sizing agent selected from the group consisting of styrene/acryl copolymers, olefin copolymers, and styrene/maleic acid copolymers and (ii) a plastic pigment having a glass transition temperature of about 80° C. or above and an average particle size of about 150 nm or less, wherein the surface-sizing agent does not retain particle shape after hot-air drying or calendaring, whereas the plastic pigment retains particle shape after hot-air drying or calendaring, and wherein the plastic pigments and surface-sizing agent account for 80 to 100 weight percent by solid content of the surface layer.