To produce coated paper for both offset/gravure printing, improved, in a well-balanced manner, in printing strength, blister resistance and smoothness in gravure printing, and ameliorating poor operability stemmed from streaks.
A method for producing coated paper by coating base paper with an aqueous coating composition containing a pigment and an adhesive as the main ingredients followed by drying and finishing the thus coated paper is provided. In the method, the aqueous coating composition is in the form of a coating liquid containing 60-100 pts.mass of a wet ground calcium carbonate as the pigment and containing 4.5-7.5 pts.mass, based on the whole amount of pigment, of the adhesive. The method includes the following process: a film metering size press apparatus is used on web produced by papermaking with a gap former paper machine to coat the web with 0.5-2.0 g/m2, on a bone dry basis, of a starch-based sizing liquid followed by drying the thus coated web and then subjecting the resultant web to double-sided coating with 8-13 g/m2, on single-sided bone dry basis, of the coating liquid followed by drying and then finishing the resulting web with an on-machine soft calender so as to be 0.6 μm or less in smoothness as determined by Parker printsurf.
KUWANO HITOSHI
YOSHIKAWA MARO
SATO TSUTOMU
JP2008231591A | 2008-10-02 | |||
JP2005314821A | 2005-11-10 | |||
JPH05502484A | 1993-04-28 |
Kenji Okada
Next Patent: PRODUCTION PROCESS FOR DEEP DYEING OF POLYAMIDE AND POLYOLEFIN