| abstract |
Electrostatic charge image developing tonernallows to design the toner characteristics such asnchargeability, flowability, stability in time andnenvironmental stability uniform among the toners ofndifferent colors. The toner has a small particlensize enough for enabling uniform dispersion and beingnexcellent in color saturation and transparency. Thentoner also shows higher contribution to thenenvironmental security. The toner includes ancoloring agent of which at least a part of thensurface is covered with polyhydroxyalkanoate (PHA).nThe toner is produced by dispersing the coloringnagent in aqueous medium, then fixing PHA synthesizingnenzyme to the coloring agent dispersed in the aqueousnmedium, then adding 3-hydroxyacyl CoA, and executingna PHA synthesizing reaction to cover at least a partnof the surface of the coloring agent with PHA. Thentoner thus obtained is used for an image formingnmethod. |