PRODUCTION OF COATED PAPER FOR OFFSET PRINTING AND COATED PAPER FOR OFFSET PRINTING

摘要

PROBLEM TO BE SOLVED: To obtain a coated paper for offset printing having excellent glossiness of white paper, opacity and dry strength free from fine gloss unevenness.;SOLUTION: In a coated paper for offset printing obtained by coating a base paper with a coating solution containing a pigment and an adhesive, the base paper containing 4-10 wt.% in the base paper of a needle-like or pillar- shaped precipitated calcium carbonate, as a loading material in the production of base paper, having 5.0-10.0 7 μm major axis and 0.2-0.5 7 μm minor axis produced by slaking quick lime with water or a weak wash and subjecting the resultant substance to a causticization reaction with a green liquor in the causticization process of a pulp producing process by a sulfate process or a soda process is coated with the coating solution and dried and subjected to calendering treatment at ≥130°C.;COPYRIGHT: (C)2000,JPO