| 摘要 |
PROBLEM TO BE SOLVED: To improve image preservability just like other colors in using a quinacridone pigment and a naphthol pigment excellent in coloring property, developing performance, transferability, charging property, fixability, etc. SOLUTION: There is provided a magenta toner for electrostatic image development which contains at least a quinacridone pigment and a naphthol pigment and is manufactured using a release agent dispersion, wherein the colorants satisfy the following conditions (a) and (b); (a) an average primary particle diameter D50 of the quinacridone pigment is smaller than an average primary particle diameter D50 of the naphthol pigment, (b) the average primary particle diameter D50 of the quinacridone pigment is >20 nm and the average primary particle diameter D50 of the naphthol pigment is <200 nm. COPYRIGHT: (C)2006,JPO&NCIPI |
