A yellow toner is provided. The yellow toner comprises toner particles each comprising a binder resin and a colorant, and 1.0% to 15.0% by number of the toner particles have a CH rate of 25.0% or more in absolute value. Here, the CH rate is calculated from the following formula (1):
CH rate (%)=[(I.sub.nI.sub.ave)/I.sub.ave]100Formula (1)
where I.sub.n represents an integrated intensity within a wavenumber region of from 2,750 to 3,250 cm.sup.1 when an intensity at a wavenumber within a wavenumber region of from 950 to 3,250 cm.sup.1 is normalized to 1 in a Raman spectrum of each toner particle; and I.sub.ave represents an average of the I.sub.n.

A yellow toner which provides, even in small amounts, a sharper color and brighter gloss, and higher reflection density than ever before, and which has excellent light resistance. The yellow toner contains a binder resin and a yellow colorant, wherein, as the yellow colorant, at least one of the compound A represented by the following general formula (1) and the compound B represented by the following general formula (2), and the compound C represented by the following formula (3) are contained:

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An object of the present invention is to provide a compound exhibiting a cyan color having properties such as high chroma, high light fastness, and high solubility. The compound is represented by the following General Formula (1).

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In Formula (1), R.sub.1 R.sub.2 each independently represent a linear, branched, or cyclic alkyl group having 6 or more and 12 or fewer carbon atoms, R.sub.3 represents a 4-alkylphenyl group, a 4-halogenated phenyl group, or a 3-alkoxyphenyl group, R.sub.4 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms, and R.sub.5 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms or a benzyl group.

A 3D image forming method for forming a color 3D image on a recording medium having a thermal expansion property includes irradiating a medium surface on which the toner image is formed with light having a maximum emission wavelength in a wavelength range of 280 nm or more and 780 nm or less and being allowed to be absorbed by a compound contained in toner.

A coating material which is processable by non-impact printing to form at least a part of a coating layer representing an image, the coating material having an amorphous resin portion, is curable and is configured for being applied with a thickness of at least 15 m, the coating material having one or more of the following: a polyester resin having at least one incorporated acid monomer and wherein at least 10 weight percent of the at least one incorporated acid monomer is isophthalic acid; a polyester resin containing 1 to 100 w-% of cycloaliphatic glycol compounds with respect to the total weight of the glycol compounds of the polyester resin component; an acrylic resin; a fluorine containing polymer; a polyurethane resin.

A toner for electrostatic image development contains: toner base particles containing at least a nonionic surfactant, a binder resin, and a release agent; and an external additive. The content of the nonionic surfactant is from 0.05% by mass to 1% by mass inclusive based on the total mass of the toner, and the external additive contains tin oxide particles.

An electrostatic-image developing toner includes toner particles including a binder resin including an amorphous resin including a polyester resin segment and a styrene acrylate resin segment and a release agent. The content of 5-chloro-3-hydroxy-2-methoxy-2-naphthanilide in the electrostatic-image developing toner is 1,000 ppm by mass or less.

A toner for electrostatic image development includes: a binder resin; and a coloring agent. When an image with a toner mass per unit area of 4.0 g/m.sup.2 is formed using the toner, the image has a color that satisfies the following conditions (A), (B), and (C): (A) L* is from 37 to 50 inclusive; (B) is from 12 to 8 inclusive; and (C) b* is from 49 to 40 inclusive.

An electrostatic-image developing toner includes toner particles including a binder resin including an amorphous resin including a polyester resin segment and a styrene acrylate resin segment and a release agent. The content of 5-chloro-3-hydroxy-2-methoxy-2-naphthanilide in the electrostatic-image developing toner is 1,000 ppm by mass or less.

A toner for electrostatic image development includes: a binder resin; and a coloring agent. When an image with a toner mass per unit area of 4.0 g/m.sup.2 is formed using the toner, the image has a color that satisfies the following conditions (A), (B), and (C): (A) L* is from 37 to 50 inclusive; (B) a* is from 12 to 8 inclusive; and (C) b* is from 49 to 40 inclusive.