Abstract: The electrostatic charge image developing toner set contains a fluorescent toner that contains a fluorescent colorant and has a brightness of 75 or more, and a non-fluorescent toner that contains no fluorescent colorant, in which an amount of Na+ on a surface of the fluorescent toner, that is measured by an ion chromatography method, is 0.005 mg/L or more and 0.050 mg/L or less, and a difference between the amount of Na+ on the surface of the fluorescent toner and an amount of Na+ on a surface of the non-fluorescent toner, that are measured by the ion chromatography method, is 0.050 mg/L or more, where the amount of Na+ is an amount of Na+ detected by a method in which 0.5 g of the fluorescent toner or the non-fluorescent toner is weighed, and then added to 100 g of deionized water at 30° C.±1° C., the mixture is dispersed by ultrasonic waves for 30 minutes, and then filtered through a filter, and the filtrate is analyzed by the ion chromatography method.

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).

Abstract: An electrostatic charge image developing green toner contains green toner particles containing a binder resin, an azomethine fluorescent pigment having an emission peak in a wavelength region of 500 nm or more and 550 nm or less in an emission spectrum, and a non-fluorescent pigment having a reflection peak in a wavelength region of 480 nm or more and 540 nm or less in a reflection spectrum, in which a mass-based ratio M2/M1 of a content M2 of the non-fluorescent pigment to a content M1 of the azomethine fluorescent pigment is 0.05 or more and 1.5 or less, and a total content of the azomethine fluorescent pigment and the non-fluorescent pigment with respect to a total amount of the green toner particles is 5% by mass or more and 15% by mass or less.

Abstract: A fluorescent green toner contains toner particles containing a binder resin, a release agent, a fluorescent pigment having a hydrophilic group, and a pigment having a halogen atom.

Abstract: An electrostatic charge image developing toner set contains a fluorescent toner that contains a fluorescent colorant and has a brightness of 75 or more and a non-fluorescent toner that contains no fluorescent colorant, in which an amount of NH4+ on a surface of the fluorescent toner, that is measured by an ion chromatography method, is 0.05 mg/L or more and 0.30 mg/L or less, and a difference between the amount of NH4+ on the surface of the fluorescent toner and an amount of NH4+ on a surface of the non-fluorescent toner, that are measured by an ion chromatography method, is 0.12 mg/L or more, where, the amount of NH4+ is an amount of NH4+ detected by a method in which 0.5 g of the fluorescent toner or the non-fluorescent toner is weighed, and then added to 100 g of deionized water at 30° C.±1° C., the mixture is dispersed by ultrasonic waves for 30 minutes, and then filtered through a filter, and the filtrate is analyzed by an ion chromatography method.

Abstract: A core-shell electrostatic image developing toner includes toner particles including a binder resin and a fluorescent colorant. The toner particles have a structure including a core and a shell layer. The core includes the fluorescent colorant. The shell layer includes an ultraviolet absorber and at least one selected from the group consisting of a radical scavenger and a peroxide decomposer.

Abstract: A C.I. Pigment Yellow 101 has an average particle size of 100 nm or more and 700 nm or less, and, in an X-ray diffraction pattern obtained by powder X-ray diffractometry, a second peak from a low angle side is present at a diffraction angle 2? in the range of 11.66° or more and 11.86° or less.

Abstract: An electrostatic image developing toner set includes a yellow toner including a yellow pigment; a magenta toner including a magenta pigment; a cyan toner including a cyan pigment; a black toner including a black pigment; a first toner that is a dye toner or a transparent toner, the first toner having a crystallization temperature T1 of 80° C. or more and 95° C. or less; and a second toner that is a dye toner or a transparent toner, the second toner having a crystallization temperature T2 of 60° C. or more and 75° C. or less.

Abstract: A toner set includes cyan, magenta, yellow, and black toners, a fluorescent toner TA having a hue angle of 125 degrees or more and 165 degrees or less, and a fluorescent toner TB having a hue angle of ?25 degrees or more and 15 degrees or less, wherein a difference between the hue angles of the fluorescent toners TA and TB is 135 degrees or more.

Abstract: A toner set includes two colors of fluorescent toners. A difference between wavelengths of fluorescent light emitted by the two colors of fluorescent toners is 50 nm or more, and at least one of the two colors of fluorescent toners includes only an aggregation-induced emission colorant serving as a fluorescent colorant.

Abstract: A fluorescent green toner includes toner particles including a fluorescent yellow dye Sy, a peak wavelength of a spectral reflectance of the fluorescent yellow dye Sy being at 500 nm or more and 550 nm or less, a yellow pigment Py, and at least one pigment Pgc selected from the group consisting of a green pigment and a cyan pigment, wherein CSy/(CPy+CPgc) is 0.01 or more and 0.3 or less, and (CSy+CPy)/CPgc is 0.3 or more and 1.5 or less, where CSy, CPy, and CPgc represent contents of the fluorescent yellow dye Sy, the yellow pigment Py, and the pigment Pgc in the toner particles, respectively.

Abstract: A fluorescent green toner contains toner particles containing a binder resin, a release agent, a fluorescent pigment having a hydrophilic group, and a pigment having a halogen atom.

Abstract: An electrostatic charge image developing green toner contains green toner particles containing a binder resin, an azomethine fluorescent pigment having an emission peak in a wavelength region of 500 nm or more and 550 nm or less in an emission spectrum, and a non-fluorescent pigment having a reflection peak in a wavelength region of 480 nm or more and 540 nm or less in a reflection spectrum, in which a mass-based ratio M2/M1 of a content M2 of the non-fluorescent pigment to a content M1 of the azomethine fluorescent pigment is 0.05 or more and 1.5 or less, and a total content of the azomethine fluorescent pigment and the non-fluorescent pigment with respect to a total amount of the green toner particles is 5% by mass or more and 15% by mass or less.

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).