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    • 3. 发明公开
    • 흑색 토너
    • 黑色粉笔
    • KR1020070119756A
    • 2007-12-20
    • KR1020077026496
    • 2006-04-14
    • 캐논 가부시끼가이샤
    • 가야,다까아끼아야끼,야스까즈다무라,시게또다자와,야요이후지따,료이찌야지마,유이찌
    • G03G9/08G03G9/09G03G9/087
    • G03G9/0902
    • In a black toner having at least a binder resin and an iron titanium composite oxide as a colorant; the iron titanium composite oxide is contained in a specific amount; the black toner has a specific weight average particle diameter and a specific saturation magnetization; the black toner has, in X ray diffraction thereof, a maximum peak at 2 = from 32.5 to 33.1 degrees, having a half width of 0.25 degree or less. The black toner has, in a proportion of less than 30% by number, an iron titanium composite oxide having, in a sectional photograph of the toner, a maximum frequency of linearity within the range where the linearity is smaller than 2.4 and having a linearity of 3.0 or more, in regard to the number frequency distribution of the linearity of the iron titanium composite oxide.
    • 在具有至少粘合剂树脂和铁钛复合氧化物作为着色剂的黑色调色剂中; 铁钛复合氧化物含有特定量; 黑色调色剂具有比重的平均粒径和比饱和磁化强度; 在X射线衍射中,黑色调色剂在2 = 32.5〜33.1度处具有0.25度以下的半宽度的最大峰值。 该黑色调色剂的数量小于30%的铁钛复合氧化物,其在调色剂的截面照片中的线性度小于2.4的线性范围内具有最大线性度, 相对于铁钛复合氧化物的线性数的频率分布为3.0以上。