Title:
オフセット印刷用紙及びその製造方法
Document Type and Number:
Japanese Patent JP5198338
Kind Code:
B2
Abstract:
To provide offset printing paper especially newsprint for cold offset printing, suppressed in causation of web break and defects in paper making, improved in operability, keeping bulkiness, opacity and stiffness and little in dirt (black spots, dust and the like), even when much containing deinked pulp.
The offset printing paper comprises deinked pulp made from used paper, wherein to the deinked pulp is added an anhydride of crystalline layered silicate in a deinking step and the resulting material is deinked at pH7.0-10.5.
COPYRIGHT: (C)2010,JPO&INPIT
Inventors:
Yuki Hiraga
Tomohiro Higata
Kentaro Kawasaki
Koji Ogashi
Tomohiro Higata
Kentaro Kawasaki
Koji Ogashi
Application Number:
JP2009077886A
Publication Date:
May 15, 2013
Filing Date:
March 27, 2009
Export Citation:
Assignee:
NIPPON PAPER INDUSTRIES CO.,LTD.
International Classes:
D21C5/02; D21H11/14
Domestic Patent References:
| JP7018593A | ||||
| JP2008007897A | ||||
| JP2006118114A | ||||
| JP2001064894A |
Attorney, Agent or Firm:
Yoshihiro Kodama
Sosuke Sato
Zentaro Hasebe
Sosuke Sato
Zentaro Hasebe