| 摘要 |
PURPOSE:To improve developing effect, cleaning effect, and blocking resistance of a toner for developing electrostatic images by mixing binder resin particles contg. wax, specified fine org. particles, and specified fine inorganic particles. CONSTITUTION:The title toner is prepd. by mixing binder resin particles (A) contg. wax, pref. polyolefin wax, with fine org. particles (B) having a smaller particle size than said binder resin particles, and fine inorganic particles (C) having a smaller mean particle size than the particle (B). The fine particles (C) are constituted pref. of silica or surface-treated silica, particularly pref. of >=2 kinds of such silica. Further, the fine particles (B) is pref. a vinyl polymer, particularly acrylic polymer, more pref. poly(methyl methacrylate). |
