ELECTROPHOTOGRAPHIC CAPSULATED TONER AND ITS PRODUCTION

摘要

PURPOSE:To improve the moisture resistance of a toner produced by a wet producing method and to provide an electrophotographic capsulated toner not reducing the extent of electrostatic charge at high a temp. and humidity. CONSTITUTION:This electrophotographic capsulated toner consists of a core material contg. a fixable component and a colorant and each resin shell made of polyurea resin and/or polyurethane resin formed in the presence of a monoamine compd. This capsulated toner is produced by dispersing an oily material contg. the above-mentioned fixable component and colorant and a 1st reactive component in an aq. dispersive medium contg. a 2nd reactive component and then forming each resin shell by interfacial polymn. of the 1st and 2nd reactive components. At the time of forming the resin shell, a monoamine compd. such as propylamine, butylamine or hexylamine is incorporated into the aq. dispersive medium.