Title:
ELECTROSTATIC CHARGE DEVELOPMENT TONER
Document Type and Number:
WIPO Patent Application WO/2024/085147
Kind Code:
A1
Abstract:
The present invention pertains to an electrostatic charge development toner and a method for producing the same. The electrostatic charge development toner contains a crystalline polyester resin C and a noncrystalline polyester resin A. The crystalline polyester resin C is a polycondensate of an alcohol component containing 80 mol% or more of ethylene glycol and a carboxylic acid component containing an aliphatic dicarboxylic acid-based compound. The alcohol component and/or the carboxylic acid component contains a monofunctional monomer. The monofunctional monomer contains an aliphatic monocarboxylic acid-based compound and/or an aliphatic monoalcohol. The contained amount of the aliphatic monocarboxylic acid-based compound and/or the aliphatic monoalcohol is 2-25 mass% of the total amount of the alcohol component and the carboxylic acid component. The noncrystalline polyester resin A is a polycondensate of a carboxylic acid component and an alcohol component containing 80 mol% or more of an aliphatic diol having 2-5 carbon atoms. The electrostatic charge development toner according to the present invention is suitably used for such as the development of a latent image formed through electrophotography, electrostatic recording, electrostatic printing, etc.
Inventors:
HAYASHI HIROTO
OKAUCHI NOBUAKI
KANO KUNIHIRO
MURATA SHOICHI
OKAUCHI NOBUAKI
KANO KUNIHIRO
MURATA SHOICHI
Application Number:
PCT/JP2023/037561
Publication Date:
April 25, 2024
Filing Date:
October 17, 2023
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
G03G9/087; C08G63/181; G03G9/08
Foreign References:
| JP2019159315A | 2019-09-19 | |||
| JP2021182032A | 2021-11-25 | |||
| JP2011203717A | 2011-10-13 | |||
| JP2018165816A | 2018-10-25 |
Attorney, Agent or Firm:
HOSODA, Yoshinori et al. (JP)
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