| 摘要 |
PURPOSE:To improve fluidity by treating resin fine particles with one kind of surface treating agent selected from a group of silane coupling agent, titanium coupling agent, aluminium coupling agent, silicon oil and denaturated silicon oil. CONSTITUTION:Acrylic resin, acryl-ulethane resin, and the like are used as the resin constituting resin fine particles having a smaller average diameter than that of toner powder. They are treated by a surface treating agent, as which at least one kind of material selected from a group is used, which group composed of silane coupling agent, titanium coupling agent, aluminum coupling agent, silicone oil and denaturated silicone oil. With this constitution fluidity can be improved. |
