The purpose of the present invention is to provide a pigment composition having outstanding dispersion characteristics, weather resistance, and heat resistance, has favorable storage stability, minimizes fading over time in a basic atmosphere, and contains isoindoline compounds.

The pigment composition contains the isoindoline compound represented by formula (1) below and the isoindoline compound represented by formula (2) below.

##STR00001## [in the formula, R.sub.1 to R.sub.4 represent hydrogen atoms, R.sub.5 and R.sub.6 each independently represent alkyl groups, and A and A′ represent a group represented by formula (3) below, formula (4) below, or formula (5) below,

##STR00002## In the formula, X represents —O— or —NH—, R.sub.7 represents an alkyl group or an aryl group, and R.sub.8 to R.sub.14 each independently represent hydrogen atoms, halogen atoms, alkyl groups, alkoxy groups, aryl groups, aryloxy groups, thioalkyl groups, or thioaryl groups.]

The purpose of the present invention is to provide a pigment composition having outstanding dispersion characteristics, weather resistance, and heat resistance, has favorable storage stability, minimizes fading over time in a basic atmosphere, and contains isoindoline compounds.

The pigment composition contains the isoindoline compound represented by formula (1) below and the isoindoline compound represented by formula (2) below.

##STR00001## [in the formula, R.sub.1 to R.sub.4 represent hydrogen atoms, R.sub.5 and R.sub.6 each independently represent alkyl groups, and A and A′ represent a group represented by formula (3) below, formula (4) below, or formula (5) below,

##STR00002## In the formula, X represents —O— or —NH—, R.sub.7 represents an alkyl group or an aryl group, and R.sub.8 to R.sub.14 each independently represent hydrogen atoms, halogen atoms, alkyl groups, alkoxy groups, aryl groups, aryloxy groups, thioalkyl groups, or thioaryl groups.]

A coloring composition which contains an isoindoline compound represented by formula (1) (wherein A represents a group that is expressed by formula (2), formula (3) or formula (4)) and a dispersion medium.

##STR00001##

A coloring composition which contains an isoindoline compound represented by formula (1) (wherein A represents a group that is expressed by formula (2), formula (3) or formula (4)) and a dispersion medium.

##STR00001##

A coloring composition contains a halogenated zinc phthalocyanine pigment A, an isoindoline pigment B, a resin C, and a curable compound D having an ethylenically unsaturated bonding group, in which the resin C includes a resin C1 having a repeating unit formed by polymerizing a polymerizable compound Cm having a CLogP value of 3.0 or more with the CLogP value being a calculated value of a LogP which is the common logarithm of a partition coefficient P of 1-octanol/water, and having a cyclic structure in a molecule thereof, and the ratio of the mass of the halogenated zinc phthalocyanine pigment A to the mass of the isoindoline pigment B is 55:45 to 85:15 in terms of the mass of the halogenated zinc phthalocyanine pigment A:the mass of the isoindoline pigment B.

A coloring composition contains a halogenated zinc phthalocyanine pigment A, an isoindoline pigment B, a resin C, and a curable compound D having an ethylenically unsaturated bonding group, in which the resin C includes a resin C1 having a repeating unit formed by polymerizing a polymerizable compound Cm having a CLogP value of 3.0 or more with the CLogP value being a calculated value of a LogP which is the common logarithm of a partition coefficient P of 1-octanol/water, and having a cyclic structure in a molecule thereof, and the ratio of the mass of the halogenated zinc phthalocyanine pigment A to the mass of the isoindoline pigment B is 55:45 to 85:15 in terms of the mass of the halogenated zinc phthalocyanine pigment A:the mass of the isoindoline pigment B.

One embodiment relates to a water-based inkjet yellow ink containing a yellow pigment (A) having a specific partial structure, an organic solvent, a basic organic compound, and water, wherein an amount of the yellow pigment (A) is 1 to 10% by mass of a total mass of the water-based inkjet yellow ink, the basic organic compound contains 0.1 to 1.25% by mass of a basic organic compound (B) having a pKa value of 9.5 or less at 25° C. of the total mass of the water-based inkjet yellow ink, and an amount of an organic solvent having a boiling point of 240° C. or higher under 1 atmosphere is 5% by mass or less of the total mass of the water-based inkjet yellow ink.

One embodiment relates to a water-based inkjet yellow ink containing a yellow pigment (A) having a specific partial structure, an organic solvent, a basic organic compound, and water, wherein an amount of the yellow pigment (A) is 1 to 10% by mass of a total mass of the water-based inkjet yellow ink, the basic organic compound contains 0.1 to 1.25% by mass of a basic organic compound (B) having a pKa value of 9.5 or less at 25° C. of the total mass of the water-based inkjet yellow ink, and an amount of an organic solvent having a boiling point of 240° C. or higher under 1 atmosphere is 5% by mass or less of the total mass of the water-based inkjet yellow ink.

A structure has a color filter having two or more different types of pixels and an absorption layer including at least one selected from a yellow colorant or a colorant having a maximum absorption wavelength in a wavelength range of 400 to 500 nm, in which the structure has the absorption layer on an optical path of at least one pixel of the pixels of the color filter and on the side through which light is incident on the pixel.

Provided are a coloring composition including a pigment A having a structure in which an aromatic ring group in which an electron-donating group is introduced into an aromatic ring is bonded to a diketopyrrolopyrrole skeleton, and a compound having a curable group, in which a content of the pigment A in a total solid content of the coloring composition is 35 mass % or more; a cured film formed of the coloring composition; a method for forming a pattern; a color filter; a solid-state imaging element; and an image display device.