申请人:ZEON CORPORATION
公开号:US10459358B2
公开(公告)日:2019-10-29
Disclosed is a method for producing a toner comprising combining a binder resin, a wax, a negatively-chargeable charge control resin and a colorant to form the toner, prior to said combining, the negatively-chargeable charge control resin is obtained by drying treatment conducted for 2 to 24 hours under conditions of a drying temperature of 45 to 80° C. and a pressure of 0.5 to 20 kPa, wherein the negatively-chargeable charge control resin comprises a monomer unit having a functional group that imparts a negative charging property, a vinyl aromatic hydrocarbon monomer unit, and a (meth)acrylate monomer unit.
本发明公开了一种生产调色剂的方法,该方法包括将粘合剂树脂、蜡、负电荷控制树脂和着色剂混合形成调色剂,在进行上述混合之前,通过在干燥温度为 45 至 80 摄氏度和压力为 0.5 至 20 千帕的条件下进行 2 至 24 小时的干燥处理获得负电荷控制树脂,其中负电荷控制树脂包括具有赋予负电荷特性的官能团的单体单元、乙烯基芳香烃单体单元、乙烯基芳香烃单体单元和乙烯基芳香烃单体单元。其中负电荷控制树脂包括具有赋予负电荷特性的官能团的单体单元、乙烯基芳香烃单体单元和(甲基)丙烯酸酯单体单元。