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1. 发明公开

EP3236318A4 TONER FOR ELECTROPHOTOGRAPHY 有权
公开(公告)号：EP3236318A4
公开(公告)日：2018-05-30
申请号：EP15869821
申请日：2015-12-04
申请人： KAO CORP
发明人： KONDO HIDEAKI , KATAYAMA KOHEI , IJICHI KOUTA , KAKIUCHI HIROKI
IPC分类号： G03G9/087 , C08G63/12 , G03G9/08
CPC分类号： C08G63/12 , G03G9/08708 , G03G9/08726 , G03G9/08755 , G03G9/08782 , G03G9/08791 , G03G9/08795 , G03G9/08797
摘要： A toner for electrophotography containing a resin binder containing a crystalline composite resin C and an amorphous polyester A and an ester wax, wherein the crystalline composite resin C is a resin containing a polycondensation resin component and a styrenic resin component, wherein the polycondensation resin component is obtained by polycondensing an alcohol component containing an aliphatic diol having 9 or more carbon atoms and 14 or less carbon atoms, and a carboxylic acid component containing an aliphatic dicarboxylic acid compound having 9 or more carbon atoms and 14 or less carbon atoms, wherein a mass ratio of the amorphous polyester A to the crystalline composite resin C (amorphous polyester A / crystalline composite resin C) is 60/40 or more and 95/5 or less, and wherein a mass ratio of the crystalline composite resin C to the ester wax (crystalline composite resin C / ester wax) is 0.5 or more and 9 or less. The toner for electrophotography of the present invention is suitably used in development of latent images or the like which is formed in electrostatic development method, electrostatic recording method, electrostatic printing method or the like.

2. 发明公开

EP3236317A4 ELECTROPHOTOGRAPHY TONER 有权
公开(公告)号：EP3236317A4
公开(公告)日：2018-06-27
申请号：EP15869745
申请日：2015-11-25
申请人： KAO CORP
发明人： WATANABE SHOGO , KATAYAMA KOHEI , HIDAKA YASUHIRO , KAKIUCHI HIROKI
IPC分类号： G03G9/087
CPC分类号： G03G9/08755 , G03G9/08706 , G03G9/08708 , G03G9/08711 , G03G9/08795 , G03G9/08797
摘要： A toner for electrophotography containing a resin binder containing a crystalline resin and an amorphous resin, and a releasing agent, wherein the crystalline resin contains a crystalline composite resin C containing a polycondensation resin component and a styrenic resin component, wherein the polycondensation resin component is obtained by polycondensing a specified alcohol component and a specified carboxylic acid component, and wherein the amorphous resin contains an amorphous composite resin AC containing a polycondensation resin component and a styrenic resin component, wherein the polycondensation resin component is obtained by polycondensing an alcohol component and a specified carboxylic acid component, and an amorphous polyester AP obtained by polycondensing an alcohol component and a specified carboxylic acid component, wherein a softening point of the amorphous polyester AP is higher than a softening point of the amorphous composite resin AC, wherein a difference in softening points between the amorphous polyester AP and the amorphous composite resin AC is 10°C or more and 50°C or less. The toner for electrophotography of the present invention is suitably used in development of latent images or the like which is formed in, for example, electrostatic development method, electrostatic recording method, electrostatic printing method or the like.

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