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    • 1. 发明申请
    • TONER USING RESIN INSOLUBLE IN ORGANIC SOLVENTS AND PREPARATION METHOD THEREOF
    • 在有机溶剂中使用树脂不溶剂的调色剂及其制备方法
    • WO2009145425A3
    • 2010-01-21
    • PCT/KR2009001547
    • 2009-03-26
    • SAMSUNG FINE CHEMICALS CO LTDAHN DUCK-KYUNYANG WOO-YOUNGKIM KEON-ILHWANG DAE-ILKIM IL HYUKPARK JAE-BUMHWANG IL-SUNHWANG JAE-KWANGCHOI DAE WOONGKIM DONG-WON
    • AHN DUCK-KYUNYANG WOO-YOUNGKIM KEON-ILHWANG DAE-ILKIM IL HYUKPARK JAE-BUMHWANG IL-SUNHWANG JAE-KWANGCHOI DAE WOONGKIM DONG-WON
    • G03G9/08
    • G03G9/0806G03G9/0821G03G9/08704G03G9/08755G03G9/08791G03G9/08793G03G9/08795G03G9/08797
    • The present invention relates to a toner using a resin insoluble in organic solvents and a preparation method thereof. The disclosed method comprises: (a) dry-milling the insoluble resin to prepare microparticles or wet-dispersing the insoluble resin to prepare a fine suspension; (b) mixing a resin containing an acid group, a colorant, and at least one additive in the organic solvent and then dissolving the mixture to prepare a toner solution; (c) adding the insoluble resin microparticles or the fine suspension into the toner solution to prepare an insoluble resin-toner solution; (d) adding the insoluble resin-toner solution into a dispersion medium to prepare a fine toner suspension; and (e) removing the organic solvent from the fine toner suspension. The insoluble resin is a crosslinkable polystyrene resin or cycloolefin resin. The weight ratio of the insoluble resin to the resin having the acid group is 5:95 to 40:60. Accordingly, the method can prevent hot offset due to the wide fixing temperature of the toner. Also, the method can improve both static stability according to environmental changes and durability of the toner at a high temperature. Additionally, the disclosed toner can be applied to an electrophotographic-imaging apparatus.
    • 本发明涉及使用不溶于有机溶剂的树脂的调色剂及其制备方法。 所公开的方法包括:(a)干式研磨不溶性树脂以制备微粒或湿分散不溶性树脂以制备细小悬浮液; (b)在有机溶剂中混合含有酸基,着色剂和至少一种添加剂的树脂,然后将该混合物溶解以制备调色剂溶液; (c)将不溶性树脂微粒或细悬浮液加入到调色剂溶液中以制备不溶性树脂调色剂溶液; (d)将不溶性树脂调色剂溶液加入到分散介质中以制备细调色剂悬浮液; 和(e)从细调色剂悬浮液中除去有机溶剂。 不溶性树脂是可交联聚苯乙烯树脂或环烯烃树脂。 不溶性树脂与具有酸基的树脂的重量比为5:95〜40:60。 因此,该方法可以防止由于调色剂的宽定影温度引起的热偏移。 此外,该方法可以根据环境变化和高温下调色剂的耐久性改善静电稳定性。 另外,所公开的调色剂可以应用于电子照相成像设备。