G - Physics
03
G
G03G 9/083 (2006.01) G03G 9/087 (2006.01) G03G 9/09 (2006.01) G03G 9/097 (2006.01)
Patent
CA 2375036
A toner for MICR comprises at least a binder resin, magnetite particles comprising a mixture of granular magnetite and acicular magnetite, and a wax, wherein a ratio by weight of said acicular magnetite in said magnetite particles is 0.1 - 0.5 to the granular magnetite of 1.0, said magnetite particles are contained in an amount of 15 - 50 % by weight in the toner, said granular magnetite has residual magnetization of 5 -15 emu/g and saturation magnetization of 70 - 95 emu/g, and said acicular magnetite has residual magnetization of 20 - 50 emu/g and saturation magnetization of 70 - 95 emu/g.
Matsumoto Tatsuru
Sano Takayuki
Kirby Eades Gale Baker
Tomoegawa Paper Co. Ltd.
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