| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the electrophotographic nonmagnetic color toner enhanced in image quality by reducing its size and improved appropriately of its powder characteristics, the dependence of its transferability and electrification on the environmental conditions, toner scattering prevention, and color development performance by transmitted light for an OHP image. SOLUTION: This nonmagnetic color toner particles comprises at least a binder resin and a colorant, an a fine organic powder, and the toner particles have an average particle diameter of 3-9.5μm. The fine inorganic powder comprises a fine titanium oxide powder having an aspect ratio of 0.5-2.0 and being treated with a hydrophotobiness-enhancing agent and mixed crystals of titanium dioxide having an average particle diameter of 50-500 nm, and a hydrophobic fine inorganic powder having an average particle diameter of 7-40 nm.</p> |
