PRINTING PAPER, METHOD FOR MANUFACTURING PRINTING PAPER, MANUFACTURING APPARATUS OF THE SAME, PRINTING METHOD, AND PRINTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To modify the surface state of a coated paper for offset printing at a low cost by targeting an aqueous ink.SOLUTION: A printing paper comprises a substrate and a coat layer formed atop the substrate and capable of receiving an oily ink. An ink reception layer including a cationic polymer and capable of receiving an aqueous ink based on osmosis through the interior thereof is formed in the upper portion of the coat layer. When an aqueous ink is discharged onto the printing paper, the aqueous ink is infiltrated through and received by the interior of the ink reception layer formed in the upper portion of the coat layer, and therefore, the bleeding of the aqueous ink can be inhibited. The printing paper can, furthermore, be manufactured at a low cost since it includes no expensive ingredients such as inorganic particulates, etc. It accordingly becomes possible to modify the surface state of a coated paper for offset printing at a low cost by targeting an aqueous ink.