| 摘要 |
PURPOSE:To provide a toner for developing an electrostatic charge image having high flowability and noncoagulability and forming stably a fine visible image at all times by adding a specified styrene-butadiene copolymer as a binder resin and specified polyolefin wax. CONSTITUTION:A styrene-butadiene copolymer contg. >=10wt% high mol.wt. component having 100,000mol.wt. is used as a binder resin. To particles of the binder resin is added wax of polyolefin block-or graft-copolymerized with an alpha-methylene aliphatic monocarboxylate monomer together with a coloring agent, an electrostatic charge controller and other necessary toner components. Thus, a toner for developing an electrostatic charge image is prepd. The amount of the wax to be added is 1-20wt%, preferably 1-10wt% of the amount of the binder resin. |
