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Title:
PARTICLES AND METHOD FOR PRODUCING THE SAME, TONER AND METHOD FOR PRODUCING THE SAME, AND DEVELOPER, PROCESS CARTRIDGE, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2011206759
Kind Code:
A
Abstract:

To provide particles which are obtained by using a method for plasticizing a pressure plastic material capable of being plasticized at the temperature lower than before; to provide a method for producing particles, and a toner which has excellent basic properties such as charging and variation with time and can be produced while reducing environmental loads since waste liquid is not generated when the toner is produced and at a low cost since a drying step is not required when the toner is produced; and to provide a method for producing the toner and the like.

The method for producing particles includes the steps of: bringing a compressive fluid into contact with the pressure plastic material to plasticize the pressure plastic material; and applying shear force to the compressive fluid and the plasticized pressure plastic material, between which an interface exists, in the presence of a surfactant to granulate the plasticized pressure plastic material in the compressive fluid so as to produce particles.


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Inventors:
TANAKA CHIAKI
INOUE RYUTA
NEMOTO TAICHI
YAMAUCHI SHOKEI
Application Number:
JP2010225436A
Publication Date:
October 20, 2011
Filing Date:
October 05, 2010
Export Citation:
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Assignee:
RICOH CO LTD
International Classes:
B01J2/00; B01J2/02; B01J3/00; G03G9/087
Domestic Patent References:
JP2005107405A2005-04-21
JP2004144778A2004-05-20
JP2005134497A2005-05-26
JP2007086469A2007-04-05
JP2009157345A2009-07-16
JP2009160518A2009-07-23
JP2003238473A2003-08-27
JP2007047752A2007-02-22
JP2007108694A2007-04-26
Attorney, Agent or Firm:
Koichi Hirota



 
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