Title:
CHARGE CONTROL AGENT COMPOSITION FOR EXTERNAL ADDITION AND ELECTROSTATIC IMAGE DEVELOPING TONER
Document Type and Number:
WIPO Patent Application WO/2013/027397
Kind Code:
A1
Abstract:
Provided is an electrostatic image developing toner that does not tend to cause image degradation even when used for a long period by controlling CCA particles present on the toner particle surface and thereby keeping the amount of frictional electrification generated between the toner and magnetic carriers and the like constant. A charge control agent composition for external addition is used for controlling the amount of electrification of toner particles and composed of at least two types of conveyance particles having different average particle diameters of primary particles, and a charge control agent (CCA), and an electrostatic image developing toner is produced by mixing toner particles and the charge control agent composition for external addition.
Inventors:
TSUNEMI KOICHI (JP)
OGUCHI TOSHIHIKO (JP)
SUKA ATSUSHI (JP)
IIMURA TAKASHI (JP)
MATSUMURA KAZUYUKI (JP)
KUDO MUNEO (JP)
TANAKA MASAKI (JP)
SAKATSUME YOSHITERU (JP)
OGUCHI TOSHIHIKO (JP)
SUKA ATSUSHI (JP)
IIMURA TAKASHI (JP)
MATSUMURA KAZUYUKI (JP)
KUDO MUNEO (JP)
TANAKA MASAKI (JP)
SAKATSUME YOSHITERU (JP)
Application Number:
PCT/JP2012/005259
Publication Date:
February 28, 2013
Filing Date:
August 22, 2012
Export Citation:
Assignee:
MORIMURA CHEMICALS LTD (JP)
SHINETSU CHEMICAL CO (JP)
TSUNEMI KOICHI (JP)
OGUCHI TOSHIHIKO (JP)
SUKA ATSUSHI (JP)
IIMURA TAKASHI (JP)
MATSUMURA KAZUYUKI (JP)
KUDO MUNEO (JP)
TANAKA MASAKI (JP)
SAKATSUME YOSHITERU (JP)
SHINETSU CHEMICAL CO (JP)
TSUNEMI KOICHI (JP)
OGUCHI TOSHIHIKO (JP)
SUKA ATSUSHI (JP)
IIMURA TAKASHI (JP)
MATSUMURA KAZUYUKI (JP)
KUDO MUNEO (JP)
TANAKA MASAKI (JP)
SAKATSUME YOSHITERU (JP)
International Classes:
G03G9/097; G03G9/08
Foreign References:
| JP2005202132A | 2005-07-28 | |||
| JPH09106095A | 1997-04-22 | |||
| JP2003345069A | 2003-12-03 | |||
| JP2002082475A | 2002-03-22 | |||
| JP2002148846A | 2002-05-22 | |||
| JP2002268277A | 2002-09-18 | |||
| JPH04333855A | 1992-11-20 | |||
| JPH04182665A | 1992-06-30 | |||
| JPH0273371A | 1990-03-13 | |||
| JPH02161471A | 1990-06-21 | |||
| JPH05127423A | 1993-05-25 | |||
| JP2004220005A | 2004-08-05 | |||
| JPH05134457A | 1993-05-28 | |||
| JPH05341570A | 1993-12-24 | |||
| JP2004109406A | 2004-04-08 |
Other References:
JOUMAL OF THE IMAGING SOCIETY OF JAPAN, vol. 37, 1998, pages 461
JOURNAL OF THE IMAGING SOCIETY OF JAPAN, vol. 37, 1998, pages 461
JOURNAL OF THE IMAGING SOCIETY OF JAPAN, vol. 37, 1998, pages 461
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, p. c. (JP)
Patent business corporation cherry tree international patent firm (JP)
Patent business corporation cherry tree international patent firm (JP)
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Claims: