| 摘要 |
<p>PURPOSE:To provide the manufacturing method of toner with wax of small grain diameter dispersed uniformly so as not to generate filming to a photon sensitive body caused by the separation of wax, and black spots, fog, and the like caused by filming. CONSTITUTION:The manufacturing method of electrophotographic toner is formed of a process (1) of mixing 100 weight parts of thermoplastic resin with 1-7 weight parts of wax at least, a process (2) of melting-kneading the mixture obtained in the process (1) in the range of set temperature (Ts): Tm-20 deg.C<=Ts<=Tm+20 deg.C (Tm: the fusing temperature of thermoplastic resin) so that the resin is discharged at the temperature of Tm+35 deg.C or lower, and a process (3) of cooling the kneaded material obtained in the process (2) and grinding-classifying it.</p> |
