Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
AssigneeFUJIFILM Business Innovation Corp.
InventorsKohei MANABE, Yukiaki NAKAMURA, Takahisa TATEKAWA
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Abstract
An electrostatic charge image developing toner contains toner particles that contain an organic colorant and a binder resin, in which the organic colorant includes a non-fluorescent organic pigment and a fluorescent organic pigment, a total content of the organic colorant is 5% by mass or more and 20% by mass or less with respect to a total mass of the toner particles, and a specific gravity D1 of the non-fluorescent organic pigment and a specific gravity D2 of the fluorescent organic pigment satisfy both of Formulas (1) and (2). D1≥2.0 Formula (1) D1−D2≥0.6 Formula (2).
Claims20
An electrostatic charge image developing toner comprising:
- toner particles that contain an organic colorant and a binder resin,
- wherein the organic colorant includes a non-fluorescent organic pigment and a fluorescent organic pigment,
- a total content of the organic colorant is 5% by mass or more and 20% by mass or less with respect to a total mass of the toner particles, and
- a specific gravity D1 of the non-fluorescent organic pigment and a specific gravity D2 of the fluorescent organic pigment satisfy both of Formulas (1) and (2),
- D1≥2.0 Formula (1)
- D1−D2≥0.6 Formula (2).
An electrostatic charge image developing toner comprising:
- toner particles that contain an organic colorant and a binder resin,
- wherein the organic colorant includes a non-fluorescent organic pigment and a fluorescent organic pigment,
- a total content of the organic colorant is 5% by mass or more and 20% by mass or less with respect to a total mass of the toner particles,
- a specific gravity D1 of the non-fluorescent organic pigment and a specific gravity D2 of the fluorescent organic pigment satisfy both of Formulas (1) and (2), and
- a volume-average particle size D50v of the fluorescent organic pigment is 100 nm or more and 500 nm or less,
- D1≥2.0 Formula (1)
- D1−D2≥0.6 Formula (2).
An electrostatic charge image developing toner comprising:
- toner particles that contain an organic colorant and a binder resin,
- wherein the organic colorant includes a non-fluorescent organic pigment and a fluorescent organic pigment,
- a total content of the organic colorant is 5% by mass or more and 20% by mass or less with respect to a total mass of the toner particles,
- a specific gravity D1 of the non-fluorescent organic pigment and a specific gravity D2 of the fluorescent organic pigment satisfy both of Formulas (1) and (2),
- a volume-average particle size D50v of the fluorescent organic pigment is 100 nm or more and 500 nm or less, and
- a volume-average particle size of the non-fluorescent organic pigment is equal to or less than a volume-average particle size of the fluorescent organic pigment,
- D1≥2.0 Formula (1)
- D1−D2≥0.6 Formula (2).
Dependencies are inferred from the claim text.