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公开(公告)号:US20090280430A1
公开(公告)日:2009-11-12
申请号:US12226065
申请日:2008-01-30
申请人: Hui Je Lee , Woo Cheul Jung , Ji Hoon Lee , Yu Na Kim , Jung Woo Kim
发明人: Hui Je Lee , Woo Cheul Jung , Ji Hoon Lee , Yu Na Kim , Jung Woo Kim
CPC分类号: G03G9/0804 , G03G9/0806 , G03G9/08702 , G03G9/08782 , G03G9/09741 , G03G9/09766 , G03G9/09775 , G03G9/09783 , G03G9/09791
摘要: There is provided a method for manufacturing a toner capable of providing a toner having excellent low-temperature fixing property and anti-offset property by adjusting a molecular weight distribution of a polymerization toner to a narrow distribution range. The method is characterized in that a toner is polymerized using a reversible addition-fragmentation chain transfer polymerization (RAFT) method by adding a dithioacetate, xanthate or dithioester-based chain transfer agent in the polymerization of a toner. The method for manufacturing a toner comprises: dissolving a dispersant in water to prepare an aqueous dispersion solution; mixing a binder resin monomer, a charge control agent, a pigment, a wax and a dithioacetate, xanthate or dithioester-based chain transfer agent to prepare a monomer mixture; adding the monomer mixture to the aqueous dispersion solution and suspension-polymerizing the monomer mixture to form a toner composition; removing the dispersant from the toner composition; and drying the dispersant-free toner composition under a vacuum condition.
摘要翻译: 提供了一种制造调色剂的方法,该调色剂能够通过将聚合调色剂的分子量分布调节到窄的分布范围来提供具有优异的低温定影性和抗偏移性的调色剂。 该方法的特征在于,通过在调色剂的聚合中加入二硫代乙酸酯,黄原酸酯或二硫代酯类的链转移剂,使用可逆的加成 - 断裂链转移聚合(RAFT)方法使调色剂聚合。 调色剂的制造方法包括:将分散剂溶解在水中以制备水分散液; 混合粘合剂树脂单体,电荷控制剂,颜料,蜡和二硫代乙酸酯,黄原酸酯或二硫代酯基链转移剂以制备单体混合物; 将单体混合物加入到水分散液中,并使单体混合物悬浮聚合以形成调色剂组合物; 从调色剂组合物中除去分散剂; 并在真空条件下干燥无分散剂的调色剂组合物。