TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development, capable of forming an image with less offset without using an impurity metal ion when a halftone image is fixed after forming a solid image in an oil-less fixing process, and to provide a method for producing the to...

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Bibliographic Details
Main Authors SAKAMOTO SHINYA, SATO SHUJI, DAIMON KATSUMI, IWASAKI EISUKE, NAKAMURA MASAKI
Format Patent
LanguageEnglish
Published 03.03.2011
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development, capable of forming an image with less offset without using an impurity metal ion when a halftone image is fixed after forming a solid image in an oil-less fixing process, and to provide a method for producing the toner. SOLUTION: The toner for electrostatic charge image development comprising at least a binder resin and a release agent and containing an amino acid and an oxy acid expressed by formula (1) is obtained by: mixing a resin fine particle dispersion liquid in which at least fine particles of a binder resin are dispersed, with a release agent dispersion liquid to which an amino acid and the oxy acid are added; aggregating the mixed liquid to form aggregated particles; and stopping the growth of the aggregated particles followed by heating the aggregated particles at a temperature equal to or higher than the melting temperature of the binder resin to fuse/unify the particles. In formula (1), n represents 1 to 8. COPYRIGHT: (C)2011,JPO&INPIT
Bibliography:Application Number: JP20090189782