| abstract |
(57) [Abstract] [Purpose] To provide a full-color toner kit capable of providing a full-color image excellent in color reproducibility in any environment, and fixing at low temperature, excellent releasability, and stable high development. To provide a color toner for developing an electrostatic image exhibiting properties. A first invention is a full-color toner kit characterized in that the work function difference of each color toner of at least magenta toner, cyan toner, yellow toner and black toner is 0.5 eV or less, and the second invention is The flow activation energy (ΔE) of the binder resin component is 30 to 4 It is in the range of 5 Kcal / mol, and as a release agent, melting point (mp) Is 50 to 110 ° C, the heat of fusion (ΔH) is 5 to 50 wt% of a low melting point wax of 40 to 60 cal / g, and the content of the organic solvent and / or the polymerizable monomer is 1000 ppm or less. Characteristic color toner for electrostatic image development. |