| 摘要 |
PURPOSE:To obtain a toner which has high affinity to a waterless lithographic printing plate and excellent printing resistance by incorporating an epoxy resin and metallic complex. compd. or metallic salt having bivalent or higher valency therein. CONSTITUTION:The toner contg. the complex compd. of vibalent or higher valent metals, for example, Ca, Zn, Al, Ni, Cr, etc. or the org. acid salt of said metals together with a bisphenol A type epoxy resin, other epoxy resin, etc. or an epoxy resin incorporated therein with diglycidyl phthalate, etc. in order to improve toner properties and electrical properties or to improve the adhesive force to a special silicon rubber at 0.5-100pts.wt. by 100pts.wt. the epoxy resin is prepd. Such toner is used for the toner for manufacturing a waterless lithographic printing plate by forming a toner image by an electrophotographic system on a lithographic printing plate, by which the printing plate having excellent printing resistance without dislodging of the toner, etc. during printing is thus obtd. |
