BINDER RESIN FOR TONER AND TONER FOR ELECTROPHOTOGRAPHY

An object of the present invention is to provide a binder resin for a toner which is excellent in fixing properties and offset resistance even when used in a high-speed copier and is also excellent in suitability for grindability, development durability and the like, and a toner for electrophotograp...

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Bibliographic Details
Main Authors SAKATA, KAZUYA, YOSHIDA, TAKESHI
Format Patent
LanguageEnglish
French
German
Published 01.03.2006
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An object of the present invention is to provide a binder resin for a toner which is excellent in fixing properties and offset resistance even when used in a high-speed copier and is also excellent in suitability for grindability, development durability and the like, and a toner for electrophotography. The binder resin for a toner comprises a resin which is obtained by mixing a vinyl polymer with a crosslinked resin obtained by reacting a vinyl polymer having a specific molecular weight and a specific content of a functional group with a crosslinking agent, and which has a specific gel portion. As a result, the above object has been achieved. A toner using the binder resin is excellent in performances including fixing properties and the like even when used in a high-speed copier. Even when continuously used for a long time in a copier, the toner gives electrophotographic prints with satisfactory reproduction.
Bibliography:Application Number: EP20040735132