| 摘要 |
Provided is a coated printing paper intended for an industrial inkjet printer that is well suited for offset printing, having excellent ink absorbency on an industrial inkjet printer, excellent chromogenic properties and image water resistance on an industrial inkjet printer using aqueous dye ink, excellent suppression of printing irregularities on an industrial inkjet printer using water pigment ink, and good gloss. The present invention provides a coated printing paper intended for an industrial inkjet printer characterized by including a base paper and at least two coating layers provided on at least one surface of the base paper, the first coating layer provided on the base paper and contacting the base paper containing an organic pigment, a cationic compound, a binder, and a dogtooth light calcium carbonate having a minor axis of 0.1-0.5 µm and a major axis of 0.5-2.5 µm, the second coating layer provided on the first coating layer and contacting the first coating layer containing at least one type of inorganic superfine particle having an average grain size less than or equal to 330 nm selected from hydrated alumina, gas-phase method silica, pulverized wet-method silica, and colloidal silica, such that when a pH-measuring indicator solution is dripped on the surface of the second coated layer as specified in JAPAN TAPPI No. 49-2:2000 and the solution is thinly applied and spread out to impart a color, the paper surface pH measured by comparing the color phase of a pH standard discoloration surface and the color phase taken on by the indicator is 5.0-7.5, and the 75° glossiness as specified in JIS Z8741 of the second coating layer coating surface is at least 45%. |
