Electrophotographic toner and image forming apparatus
A technology of electrophotography and toner, which is applied in the direction of developer, electrography, and electrorecording technology using charge patterns, etc. It can solve the problems that the long-term durability limit of the developer cannot be improved to improve the high-resolution dot reproducibility , to achieve good thin line and small dot reproducibility, less background blur, and less image degradation over time
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Embodiment 1
[0172] Compounds A-1 and B-1 were used to prepare a toner as follows: Based on 100 parts of toner, the total amount of compounds A-1 and B-1 was 1 part, and the amount of compound A-1 and compound B-1 The mass ratio (compound A-1:compound B-1) was 99:1.
[0173] Specifically, 84 parts of polyester resin containing 5% by mass of chloroform insoluble matter (trade name: FN119, manufactured by Kao), 8 parts of magenta pigment (trade name: ECR186Y, manufactured by Dainichi Seika Chemical Co., Ltd.), 5 parts of polypropylene (trade name: Name: NP105, manufactured by Mitsui Chemicals), a total of 1 part of compounds A-1 and B-1, and 2 parts of a toner composition of a diimonium infrared absorber (trade name: IRG023, manufactured by Nippon Kayaku) was added to Heng Scher mixer and premixed. Then, the mixture was kneaded in an extruder, then roughly ground in a hammer mill and finished in a jet mill, and classified in an airflow classifier to obtain magenta particles having a volume ...
Embodiment 2
[0176] Except that the mass ratio of Compound A-1 to Compound B-1 (Compound A-1:Compound B-1) is 75:25, and the total amount of Compounds A-1 and B-1 based on 100 parts of toner is 1 The same method as in Example 1 was used to prepare the toner and the two-component developer of Example 2, except that Compounds A-1 and B-1 were used.
Embodiment 3
[0178] Except that the mass ratio of Compound A-1 to Compound B-1 (Compound A-1:Compound B-1) is 60:40, and the total amount of Compounds A-1 and B-1 based on 100 parts of toner is 1 The same method as in Example 1 was used to prepare the toner and the two-component developer of Example 3, except that Compounds A-1 and B-1 were used.
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