发明名称 |
TONER, MASTERBATCH FOR TONER AND METHOD FOR EVALUATING MASTERBATCH FOR TONER |
摘要 |
PROBLEM TO BE SOLVED: To provide a method for evaluating whether a masterbatch for a toner is good or not, and to provide a good masterbatch for a toner obtained by the evaluation method and a toner. SOLUTION: In the method for evaluating a masterbatch for a toner consisting essentially of a binder resin and a colorant, whether relation satisfying -6≤logRm-logRr is established or not between the volume resistivity Rr (Ωcm) of the binder resin and the volume resistivity Rm (Ωcm) of the masterbatch is ascertained. The masterbatch for a toner establishes relation satisfying -6≤logRm-logRr according to the evaluation method. The toner comprises the masterbatch for a toner and has a volume average particle diameter of≤7μm. COPYRIGHT: (C)2005,JPO&NCIPI |
申请公布号 |
JP2004334041(A) |
申请公布日期 |
2004.11.25 |
申请号 |
JP20030132047 |
申请日期 |
2003.05.09 |
申请人 |
SHARP CORP |
发明人 |
FUJITA SAYAKA;MATSUMOTO KATSURU;SAKAI MASAHIRO;MURAKAMI TOSHIHIKO;KATO TAKESHI;TENJIKU EIJI |
分类号 |
G03G9/09;G03G9/087;(IPC1-7):G03G9/09 |
主分类号 |
G03G9/09 |
代理机构 |
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