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Title:
METHOD FOR COATED PAPER FOR BOTH OFFSET/GRAVURE PRINTING
Document Type and Number:
Japanese Patent JP2011058148
Kind Code:
A
Abstract:

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.


Inventors:
KOBAYASHI KOSAKU
KUWANO HITOSHI
YOSHIKAWA MARO
SATO TSUTOMU
Application Number:
JP2009212182A
Publication Date:
March 24, 2011
Filing Date:
September 14, 2009
Export Citation:
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Assignee:
HOKUETSU KISHU PAPER CO LTD
International Classes:
D21H19/84; D21H19/10; D21H19/38
Domestic Patent References:
JP2008231591A2008-10-02
JP2005314821A2005-11-10
JPH05502484A1993-04-28
Attorney, Agent or Firm:
Katsuhiro Imashita
Kenji Okada