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    • 1. 发明公开
    • 자성 토너
    • 包含具有聚酯单元的含有粘合剂树脂的磁性调色剂的磁性调色剂,并且使用钛酸钡化合物作为催化剂和磁性氧化物制备
    • KR1020050014638A
    • 2005-02-07
    • KR1020040013739
    • 2004-02-28
    • 캐논 가부시끼가이샤
    • 오가와,요시히로가스야,다까시게모리베,슈헤이니시까와,고우지
    • G03G9/083
    • G03G9/0819G03G9/0827G03G9/0833G03G9/0834G03G9/0835G03G9/09766G03G9/0831G03G9/0837G03G9/0839
    • PURPOSE: Provided is a magnetic toner which is excellent in developability and environmental stability and is reduced in toner consumption. CONSTITUTION: The magnetic toner comprises a magnetic toner particle containing at least a binder resin and a magnetic iron oxide, wherein the toner has a saturation magnetization (σ s) of 5-60 Am2/kg at 795.8 kA/m and a residual magnetization (σr) of 0.1-10.0 Am2/kg, and the binder resin contains a polyester unit and is prepared by using a titanium chelate compound as a catalyst. Preferably the titanium chelate compound is any one compound represented by the formulas 1 to 8, wherein R1 and R4 are independently a substituted or unsubstituted C2-C10 alkylene or alkenylene group; R2, R3, R5 and R6 are independently a substituted or unsubstituted C1-C10 alkylene or alkenylene group; M is a counter cation; n is 2 if m is 1 and n is 1 if m is 2; and M is a hydrogen ion, an alkali metal ion, an ammonium ion or an organic ammonium ion if n is 1, and M is an alkaline earth metal ion if n is 2.
    • 目的:提供显影性和环境稳定性优异并且减少调色剂消耗的磁性调色剂。 构成:磁性调色剂包括至少含有粘合剂树脂和磁性氧化铁的磁性调色剂颗粒,其中调色剂在795.8kA / m的饱和磁化强度(σs)为5-60Am 2 / kg,剩余磁化强度( σr)为0.1-10.0Am 2 / kg,并且粘合剂树脂含有聚酯单元,并且通过使用钛螯合物作为催化剂制备。 优选地,钛螯合化合物是由式1至8表示的任何一种化合物,其中R 1和R 4独立地为取代或未取代的C 2 -C 10亚烷基或亚烯基; R2,R3,R5和R6独立地是取代或未取代的C1-C10亚烷基或亚烯基; M是抗衡阳离子; 如果m为1,则n为2,如果m为2,则n为1; 如果n为1,M为氢离子,碱金属离子,铵离子或有机铵离子,如果n为2,M为碱土金属离子。