Title:
METHOD FOR PRODUCING LIQUID DEVELOPER
Document Type and Number:
WIPO Patent Application WO/2018/116658
Kind Code:
A1
Abstract:
The present invention is a method for producing a liquid developer that contains a binder resin containing a resin which has an acidic group, a coloring agent, a basic dispersant and an insulating liquid. This method for producing a liquid developer comprises: a step I wherein a starting material that contains the binder resin, the coloring agent and the basic dispersant is stirred at a temperature that is not less than the glass transition temperature of the binder resin; and a step II wherein a dispersion liquid of toner particles is obtained by means of phase inversion emulsification by dripping the insulating liquid into a stirred product of step I in an amount of 50-500 parts by mass per 100 parts by mass of the stirred product at a temperature that is not less than the glass transition temperature of the binder resin. A liquid developer obtained by the method of the present invention is suitable, for example, for use in development of latent images that are formed by an electrophotographic method, an electrostatic recording method or an electrostatic printing method, and the like.
Inventors:
NANNICHI YURI
KAMIYOSHI NOBUMICHI
KAMIYOSHI NOBUMICHI
Application Number:
PCT/JP2017/039751
Publication Date:
June 28, 2018
Filing Date:
November 02, 2017
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
G03G9/13; G03G9/12
Foreign References:
| JP2015125297A | 2015-07-06 | |||
| JP2014071370A | 2014-04-21 | |||
| US5536615A | 1996-07-16 | |||
| JP2008096646A | 2008-04-24 | |||
| JP2017223791A | 2017-12-21 | |||
| JP2017067952A | 2017-04-06 |
Other References:
See also references of EP 3561599A4
Attorney, Agent or Firm:
HOSODA, Yoshinori (JP)
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