| 摘要 |
PURPOSE: A polymerized toner is provided to uniformize color and image of magenta pigment and to ensure high image concentration. CONSTITUTION: A polymerized toner contains two or more quinacridone derivatives as a magenta pigment, and two or more elastomers as a pigment dispersant. The quinacridone derivatives are denoted by chemical formula 1. The elastomer is selected from the group consisting of styrene-isoprene-styrene, styrene-butadiene-styrene, styrene-ethylene-buthylene-styrene, styrene-ethylene-propylene-styrene, styrene butadiene, and styrene-isoprene. The content of the pigment dispersant is 0.1-20 weight parts based on total weight.
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