Manufacturing method of ink jet recording paper and ink jet recording paper

摘要

A method of manufacturing an ink jet recording paper comprising the steps of: (a) applying a first coating composition containing inorganic microparticles and a binder onto a support to form a porous ink absorbing layer; (b) drying the porous ink absorbing layer; (c) applying a second coating composition onto the porous ink absorbing layer during the drying step (b); and (d) drying the porous ink absorbing layers, wherein the second coating composition exhibits a pH buffering function, and both conditions (1) and (2) are satisfied at the same time: Condition (1) pH^b-pH^c<1.0c-pH^a, Condition (2) pH^ab, wherein pH^a, pH^b, and pH^c are respectively a pH value of the first coating composition, a pH value of the second coating composition, and a pH value of a surface of the ink jet recording paper.