An image forming method of the present invention uses a specific toner set. The toner set includes a yellow toner, a magenta toner, a cyan toner and a black toner, and each of these toners contains an amorphous resin, a crystalline resin and a colorant. The colorant of the black toner contains a conductive black colorant. There is a specific relationship between an exothermic peak temperature of the black toner and exothermic peak temperatures of the chromatic color toners.

An electrostatic charge image developing white toner includes a white toner particle and a yellow toner particle that includes an organic yellow pigment, wherein a content ratio (by number) of the yellow toner particles to all of toner particles included in the toner is from 0.01% by number to 3% by number.

A particle set for producing a printed matter includes: a chromatic color toner containing toner particles A; and pressure-responsive particles containing base particles B, in which the base particles B contain a styrene resin containing, as polymerization components, styrene and a vinyl monomer other than styrene, and a (meth)acrylate resin containing, as a polymerization component, a (meth)acrylate, a mass ratio of the styrene resin to the (meth)acrylate resin (styrene resin:(meth)acrylate resin) is 80:20 to 20:80, a difference between the lowest glass transition temperature and the highest glass transition temperature of the pressure-responsive particles is 30° C. or more, and when the toner particles A have a volume average particle diameter D50A and the base particles B have a volume average particle diameter D50B, the D50A and the D50B satisfy formula 1-1: 1.5 μm<(D50B−D50A).

A resin composition includes at least one selected from compounds represented by formula (I-1) and at least one selected from compounds represented by formula (I-2) and compounds represented by formula (I-3):

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wherein R.sup.11 to R.sup.14, R.sup.21 to R.sup.24, and R.sup.31 to R.sup.34 independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, R.sup.15, R.sup.16, R.sup.25, R.sup.26, R.sup.35, and R.sup.36 independently represent a hydrogen atom or an alkyl group, X and Y independently represent an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, with the proviso that plural X's each represent the same element, plural Y's each represent the same element, which is an element different from the element selected as X, A.sup.1 to A.sup.3 independently represent a divalent group represented by formula (a1) or (a2), which is bonded at the * positions.

Fluorescent orange latexes are provided which comprise water and fluorescent agent-incorporated resin particles, the particles comprising a resin, Solvent Red 49 as a red fluorescent agent, and Solvent Yellow 98 as a yellow fluorescent agent, wherein the fluorescent orange latex has a weight ratio of the Solvent Yellow 98 to the Solvent Red 49 in a range of from 20:1 to 0.5:1. Fluorescent orange toners and methods of making and using the fluorescent orange toners are also provided.

Fluorescent green toners are provided. In embodiments, a fluorescent green toner comprises fluorescent agent-incorporated resin particles comprising a resin, a fluorescence brightener, and a yellow fluorescent agent having an absorption spectrum that overlaps with a fluorescence emission spectrum of the fluorescence brightener; and a cyan colorant; blue dye-incorporated resin particles comprising the resin and a blue dye; or both. The fluorescent green toner has a weight ratio of the yellow fluorescent agent to the cyan colorant and, if present, the blue dye, in a range of from 100:1 to 0.2:1, and the fluorescent green toner exhibits Förster Resonance Energy Transfer (FRET) under illumination with UV light. Methods of making and using the fluorescent green toners are also provided.

Methods of making fluorescent pink toners are provided which comprise forming one or more fluorescent latexes which comprise a red fluorescent agent, a yellow fluorescent agent, a first type of amorphous resin, and a second type of amorphous resin, wherein the first and second types of amorphous resins are present at a ratio in a range of from 2:3 to 3:2; forming a mixture comprising the one or more fluorescent latexes; one or more emulsions which comprise a crystalline resin, the first type of amorphous resin, the second type of amorphous resin; and optionally, a wax dispersion; aggregating the mixture to form particles of a predetermined size; forming a shell over the particles of the predetermined size to form core-shell particles; and coalescing the core-shell particles to form a fluorescent pink toner. Fluorescent pink toners and methods of using such toners are also provided.

A toner is provided comprising toner particles each comprising: a toner base particle containing an inorganic filler; and an external additive. A relation 0.30≤S2/S1≤0.70 is satisfied, where S1 and S2 respectively represent an area of the toner base particle and a total area of the inorganic filler exposed at a surface of the toner base particle. A standard deviation SD of an area distribution of S2 is less than 0.040 μm.sup.2. A volume average particle diameter of the toner is 4.0 μm or more and less than 6.0 μm. A relation B/A≥0.7 is satisfied, where A and B are respectively average values of Q1/D1 and Q2/D2, where Q1 and D1 are respectively a charge amount and a particle diameter of the toner particle having a size of 4.0 μm or more and less than 6.0 μm, and Q2 and D2 are those of the toner particle having a size of 6.0 μm or more and less than 8.0 μm.

The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin and at least two kinds of organic pigments, and alumina as an external additive. The at least two kinds of organic pigments comprises: a pigment P1 having an absorption maximum wavelength λmax (nm) of greater than 400 nm and less than 600 nm when dispersed in methyl ethyl ketone; and a pigment P2 having an absorption maximum wavelength λ max (nm) of 600 nm or more and 700 nm or less when dispersed in methyl ethyl ketone.

A fixing apparatus includes an endless first rotary member, a heating element, a second rotary member configured to form a nip portion, and a nip member configured to receive radiant heat from the heating element and heat the nip portion. The nip member includes a main-body portion that contains aluminum or aluminum alloy and a protective layer that includes an oxide film formed on a surface of the main-body portion. The main-body portion contains a heat receiving surface that faces the heating element and receives radiant heat from the heating element, and a rubbed surface that is rubbed against the inner circumferential surface of the first rotary member. The protective layer contains coloring agent that causes an emissivity of the heat receiving surface and the rubbed surface to be higher than an emissivity of a natural color oxide film.