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Title:
POSITIVELY CHARGEABLE TONER
Document Type and Number:
Japanese Patent JP2012173575
Kind Code:
A
Abstract:

To provide a positively chargeable toner capable of retaining a favorable positively chargeable property and suppressing generation of an inferior image such as photographic fog, and toner scattering.

Zirconium oxide microparticles are stuck to the surface of toner base particles, and the toner base particles include at least a binding resin and colorant. The surface of the zirconium oxide microparticles is treated by positively chargeable surface treatment agent and silicone oil. A mass ratio between the positively chargeable surface treatment agent and the silicone oil that are stuck to the surface of the zirconium oxide microparticles is defined to 6:4 to 2:8, where the ratio is (the positively chargeable surface treatment agent):(the silicone oil).


Inventors:
TAKATSUNA TORU
Application Number:
JP2011036380A
Publication Date:
September 10, 2012
Filing Date:
February 22, 2011
Export Citation:
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Assignee:
KYOCERA DOCUMENT SOLUTIONS INC
International Classes:
G03G9/08
Domestic Patent References:
JP2005121867A2005-05-12
JPH11160907A1999-06-18
JPS63200160A1988-08-18
JP2005121867A2005-05-12
JPS63118757A1988-05-23
JP2000352836A2000-12-19
JP2008170590A2008-07-24
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Toshiyuki Inui
Iwaike Mitsuru



 
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