WO2023157740A1

WO2023157740A1 - Coloring composition, film, optical filter, solid-state imaging element, and image display device

Info

Publication number: WO2023157740A1
Application number: PCT/JP2023/004269
Authority: WO
Inventors: 信哉西; 拓也鶴田; 祐一安原; 大貴瀧下; 怜子辰馬
Original assignee: 富士フイルム株式会社
Priority date: 2022-02-16
Filing date: 2023-02-09
Publication date: 2023-08-24
Also published as: TW202337923A

Abstract

Disclosed are: a coloring composition comprising a coloring agent, a resin, and a solvent, wherein the coloring agent contains a compound A in which a compound represented by formula (1) is coordinated to a metal atom; a film; an optical filter; a solid-state imaging element; and an image display device.

Description

Coloring composition, film, optical filter, solid-state imaging device, and image display device

The present invention relates to coloring compositions. The present invention also relates to a film, an optical filter, a solid-state imaging device, and an image display device using the colored composition.

In recent years, due to the spread of digital cameras, camera-equipped mobile phones, etc., the demand for solid-state imaging devices such as charge-coupled device (CCD) image sensors has increased significantly. Color filters are used as key devices for displays and optical elements. A color filter usually comprises three primary color pixels of red, green and blue and serves to separate the transmitted light into the three primary colors.

The colored pixels of each color of the color filter are manufactured using a coloring composition containing a coloring agent. Patent Document 1 describes forming colored pixels of a color filter using a coloring composition using a specific quinophthalone compound as a coloring agent.

JP 2021-102743 A

Generally, optical filters such as color filters have pixels of multiple colors. Such an optical filter having pixels of a plurality of colors is manufactured by sequentially forming pixels of each color.

On the other hand, when a pixel is formed using a coloring composition, color mixture may occur due to thermal diffusion of the coloring agent between adjacent pixels of other colors. From the viewpoint of the color separation performance of each color pixel, it is desirable to suppress the occurrence of such thermal diffusion of the colorant.

Accordingly, an object of the present invention is to provide a coloring composition capable of forming a film in which thermal diffusion of a coloring agent is suppressed. Another object of the present invention is to provide a film, an optical filter, a solid-state imaging device, and an image display device using the colored composition.

According to the studies of the present inventors, the inventors have found that the above-mentioned objects can be achieved by the coloring composition described later, and have completed the present invention. Accordingly, the present invention provides the following.
<1> A coloring composition containing a coloring agent, a resin, and a solvent,
The coloring composition comprises a compound A in which a compound represented by formula (1) is coordinated to a metal atom;
In formula (1), R ¹ to R ⁷ each independently represent a hydrogen atom or a substituent, R ¹ and R ² may combine to form a ring, and R ³ to R ⁷ two adjacent groups may be combined to form a ring,
R ⁸ represents a hydrogen atom or a hydrocarbon group, R ⁸ and R ⁷ may combine to form a ring,
X ¹ and X ² each independently represent -OH, -NHR ^X1 or -SH, R ^X1 represents a hydrogen atom or a substituent,
when X ¹ and X ² are each independently —NHR ^X1 , X ¹ and X ² may be bonded;
L ¹ represents a single bond or a divalent linking group.
<2> The colored composition according to <1>, wherein the metal atom in the compound A is Cu, Zn, Ni, Al, Pd, Co, Mn or Fe.
<3> The colored composition according to <1> or <2>, wherein the compound represented by the formula (1) is a compound represented by the formula (2);
In formula (2), R ³ to R ⁷ each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ³ to R ⁷ may combine to form a ring,
R ⁸ represents a hydrogen atom or a hydrocarbon group, R ⁸ and R ⁷ may combine to form a ring,
X ¹ and X ² each independently represent -OH, -NHR ^X1 or -SH, R ^X1 represents a hydrogen atom or a substituent,
when X ¹ and X ² are each independently —NHR ^X1 , X ¹ and X ² may be bonded;
B ¹ and C ¹ each independently represent a cyclic structure.
<4> B ¹ in the above formula (2) represents a group represented by formula (B-1) or formula (B-2),
The coloring composition according to <3>, wherein C ¹ in formula (2) represents a group represented by formula (C-1) or formula (C-2);
In formula (B-1), R ^B11 to R ^B14 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^B11 to R ^B14 may combine to form a ring. often,
X ^B11 represents =O, =NHR ^XB1 or =S, R ^XB1 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with ^X1 ;
In formula (B-2), R ^B21 to R ^B26 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^B21 to R ^B26 may combine to form a ring. often,
X ^B21 represents =O, =NHR ^XB2 or =S, R ^XB2 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with ^X1 ;
In formula (C-1), R ^C11 to R ^C14 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^C11 to R ^C14 may combine to form a ring. often,
*1 and *2 each represent a bond, and *1 is a bond with ^X2 ;
In formula (C-2), R ^C21 to R ^C24 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^C21 to R ^C24 may combine to form a ring. often,
X ^C21 represents =O, =NHR ^XC1 or =S, R ^XC1 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with ^X2 .
<5> The coloring composition according to any one of <1> to <4>, wherein the coloring agent contains at least one selected from the group consisting of a green coloring agent and a red coloring agent.
<6> The colored composition according to any one of <1> to <5>, further comprising a polymerizable compound and a photopolymerization initiator.
<7> The colored composition according to any one of <1> to <6>, which is used for color filters.
<8> A film obtained from the colored composition according to any one of <1> to <7>.
<9> An optical filter comprising the film according to <8>.
<10> A solid-state imaging device having the film according to <8>.
<11> An image display device comprising the film according to <8>.

According to the present invention, it is possible to provide a coloring composition capable of forming a film in which thermal diffusion of a coloring agent is suppressed. Also, a film, an optical filter, a solid-state imaging device, and an image display device using the colored composition can be provided.

The contents of the present invention will be described in detail below.
In the present specification, the term "~" is used to include the numerical values before and after it as lower and upper limits.
In the description of a group (atomic group) in the present specification, a description that does not describe substitution or unsubstituted includes a group (atomic group) having no substituent as well as a group (atomic group) having a substituent. For example, an "alkyl group" includes not only an alkyl group having no substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group).
As used herein, the term "exposure" includes not only exposure using light but also drawing using particle beams such as electron beams and ion beams, unless otherwise specified. Light used for exposure includes actinic rays or radiation such as emission line spectra of mercury lamps, far ultraviolet rays represented by excimer lasers, extreme ultraviolet rays (EUV light), X-rays, and electron beams.
In the present specification, "(meth)acrylate" represents both or either acrylate and methacrylate, "(meth)acryl" represents both or either acrylic and methacrylic, and "(meth) ) acryloyl” refers to acryloyl and/or methacryloyl.
In this specification, Me in the structural formulas represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group.
As used herein, the weight average molecular weight and number average molecular weight are polystyrene equivalent values measured by GPC (gel permeation chromatography).
As used herein, the term "total solid content" refers to the total mass of all components of the composition excluding the solvent.
As used herein, a pigment means a compound that is difficult to dissolve in a solvent.
As used herein, the term "process" includes not only an independent process, but also when the intended action of the process is achieved even if it cannot be clearly distinguished from other processes. .

<Coloring composition>
The coloring composition of the present invention is
A coloring composition containing a coloring agent, a resin, and a solvent,
The coloring agent is characterized by containing a compound A in which a compound represented by formula (1) is coordinated to a metal atom.

The coloring composition of the present invention can form a film in which thermal diffusion of the coloring agent is suppressed. Compound A described above forms a metal complex by coordinating the compound represented by the formula (1) to the metal atom, so it is presumed that the mobility in the film is small. Further, even in the case where the coloring agent contained in the coloring composition of the present invention further contains a coloring agent other than compound A, compound A interacts with the coloring agent other than compound A to form a colorant in the film. It is speculated that the motility of other colorants can be reduced. Therefore, it is presumed that by using the coloring composition of the present invention, it was possible to form a film in which the thermal diffusion of the coloring agent was suppressed.

The coloring composition of the present invention is preferably used as a coloring composition for color filters or infrared transmission filters. More specifically, it can be preferably used as a coloring composition for forming color filter pixels or as a coloring composition for forming infrared transmission filters, and is more preferably used as a coloring composition for forming color filter pixels. Pixel types include red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, yellow pixels, and the like. Red pixels, green pixels, and yellow pixels are preferred, and red pixels and green pixels are preferable. More preferably, it is a green pixel.

When a film having a thickness of 0.65 μm is formed using the coloring composition of the present invention, the wavelength at which the light transmittance of the film is 50% is preferably present in the wavelength range of 470 to 520 nm. More preferably in the wavelength range of 520 nm, even more preferably in the wavelength range of 480-520 nm. In particular, it is preferable that the wavelengths at which the light transmittance is 50% exist in both the wavelength range of 470 to 520 nm and the wavelength range of 575 to 625 nm. In this embodiment, the wavelength on the short wavelength side at which the light transmittance is 50% preferably exists in the wavelength range of 475 to 520 nm, more preferably in the wavelength range of 480 to 520 nm. Further, the wavelength on the long wavelength side at which the light transmittance is 50% preferably exists in the wavelength range of 580 to 620 nm, more preferably in the wavelength range of 585 to 615 nm. A coloring composition capable of forming a film having such spectral characteristics is preferably used as a coloring composition for forming green pixels of a color filter.

Each component used in the coloring composition of the present invention will be described below.

<<coloring agent>>
The coloring composition of the present invention contains a coloring agent. Colorants include yellow colorants, orange colorants, red colorants, green colorants, purple colorants, blue colorants, black colorants, and the like. The coloring agent may be a pigment or a dye. The pigment may be either an inorganic pigment or an organic pigment, but an organic pigment is preferred from the viewpoints of color variation, ease of dispersibility, safety, and the like. A pigment derivative can also be used as the colorant.

The coloring agent contained in the coloring composition of the present invention preferably contains a pigment and a pigment derivative. Pigment derivatives include compounds having a structure in which an acid group or a basic group is bonded to a pigment skeleton. The content of the pigment derivative is preferably 1 to 30 parts by mass, more preferably 3 to 20 parts by mass, based on 100 parts by mass of the pigment. Only one pigment derivative may be used, or two or more pigment derivatives may be used in combination.

The average primary particle size of the pigment is preferably 1 to 200 nm. The lower limit is preferably 5 nm or more, more preferably 10 nm or more. The upper limit is preferably 180 nm or less, more preferably 150 nm or less, and even more preferably 100 nm or less. When the average primary particle size of the pigment is within the above range, the dispersion stability of the pigment in the coloring composition is good. In the present invention, the primary particle size of the pigment can be determined from the photograph obtained by observing the primary particles of the pigment with a transmission electron microscope. Specifically, the projected area of the primary particles of the pigment is obtained, and the corresponding circle equivalent diameter is calculated as the primary particle diameter of the pigment. Further, the average primary particle size in the present invention is the arithmetic mean value of the primary particle sizes of 400 primary particles of the pigment. Further, the primary particles of the pigment refer to independent particles without agglomeration.

The crystallite size of the organic pigment and pigment derivative is preferably 0.1 to 50 nm, more preferably 0.5 to 30 nm, and even more preferably 1 to 15 nm. The crystallite size can be obtained from the half width of the diffraction angle peak using an X-ray diffractometer, and is calculated using Scherrer's formula. The crystallite size of organic pigments and pigment derivatives can be adjusted by known methods such as adjustment of production conditions and pulverization after production.

(Compound A)
As the coloring agent contained in the coloring composition of the present invention, one containing a compound A in which a compound represented by formula (1) is coordinated to a metal atom is used.

In formula (1), R ¹ to R ⁷ each independently represent a hydrogen atom or a substituent, R ¹ and R ² may combine to form a ring, and R ³ to R ⁷ two adjacent groups may be combined to form a ring,
R ⁸ represents a hydrogen atom or a hydrocarbon group, R ⁸ and R ⁷ may combine to form a ring,
X ¹ and X ² each independently represent -OH, -NHR ^X1 or -SH, R ^X1 represents a hydrogen atom or a substituent,
when X ¹ and X ² are each independently —NHR ^X1 , X ¹ and X ² may be bonded;
L ¹ represents a single bond or a divalent linking group.

-Regarding R ¹ to R ^7-
Substituents represented by R ¹ to R ⁷ of formula (1) include a substituent T described later, a group represented by formula (R-1) described later, and a group represented by formula (R-2) described later. are mentioned. Substituents other than the group represented by formula (R-1) and the group represented by formula (R-2) are halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, aryl groups, heteroaryl groups, and cyano groups. , nitro group, alkoxy group, aryloxy group, heteroaryloxy group, acyloxy group, carbamoyloxy group, acylamino group, aminocarbonylamino group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfamoylamino group, alkylsulfonyl amino group, arylsulfonylamino group, mercapto group, alkylthio group, arylthio group, heteroarylthio group, sulfamoyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, acyl group, aryloxycarbonyl group, alkoxy A carbonyl group, a carbamoyl group, an arylazo group, a heteroarylazo group, a phosphino group, a phosphinyl group, a phosphinyloxy group, a phosphinylamino group or a silyl group is preferred, and a halogen atom, an alkyl group, an aryl group, a hetero An aryl group, a cyano group, a nitro group, an alkoxy group, an aryloxy group, a heteroaryloxy group or a hydroxy group is more preferable.

R ¹ and R ² in formula (1) are preferably combined to form a ring, and form an aliphatic hydrocarbon ring, an aromatic hydrocarbon ring, a heterocyclic ring, a cyclic ketone, a cyclic thioketone or a cyclic imine. More preferably, it forms a group represented by formula (B-1) or formula (B-2), to improve the stability over time of the colored composition, the viscosity over time Forming a group represented by the formula (B-1) is particularly preferable because it can suppress an increase in the amount of the group represented by the formula (B-1).

In formula (B-1), R ^B11 to R ^B14 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^B11 to R ^B14 may combine to form a ring. often,
X ^B11 represents =O, =NHR ^XB1 or =S, R ^XB1 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with ^X1 ;
In formula (B-2), R ^B21 to R ^B26 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^B21 to R ^B26 may combine to form a ring. often,
X ^B21 represents =O, =NHR ^XB2 or =S, R ^XB2 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with ^X1 .

The substituents represented by R ^B11 to R ^B14 in formula (B-1) and the substituents represented by R ^B21 to R ^B26 in formula (B-2) include a substituent T described later and a substituent represented by formula (R-1) described later. The group represented by is mentioned. Substituents other than the group represented by formula (R-1) include halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, aryl groups, heteroaryl groups, cyano groups, nitro groups, alkoxy groups, aryloxy groups, hetero aryloxy group, acyloxy group, carbamoyloxy group, acylamino group, aminocarbonylamino group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfamoylamino group, alkylsulfonylamino group, arylsulfonylamino group, mercapto group, alkylthio group, arylthio group, heteroarylthio group, sulfamoyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, acyl group, aryloxycarbonyl group, alkoxycarbonyl group, carbamoyl group, arylazo group, heteroarylazo is preferably a group, a phosphino group, a phosphinyl group, a phosphinyloxy group, a phosphinylamino group or a silyl group, more preferably a halogen atom, an alkyl group, a nitro group or an alkoxy group, and a halogen atom is more preferred.
A halogen atom is preferably a chlorine atom, a bromine atom or a fluorine atom, and more preferably a chlorine atom.
The number of carbon atoms in the alkyl group is preferably 1-10, more preferably 1-5, even more preferably 1-3. The alkyl group may be linear, branched, or cyclic, but linear or branched is preferred because it can improve the stability of the coloring composition over time and suppress the increase in viscosity over time. is preferred, and linear is more preferred.
The number of carbon atoms in the alkoxy group is preferably 1-10, more preferably 1-5, even more preferably 1-3. The alkoxy group may be either linear or branched, but is more preferably linear because it can improve the stability over time of the colored composition and suppress the increase in viscosity over time. .

R ^B11 to R ^B14 in formula (B-1) and R ^B21 to R ^B26 in formula (B-2) are each independently a hydrogen atom, a halogen atom, or represented by formula (R-1) described later. is preferably a group that is a hydrogen atom or a halogen atom, and still more preferably a halogen atom.
When compound A is used as a pigment derivative, at least one of R ^B11 to R ^B14 and at least one of R ^B21 to R ^B26 may be a group represented by formula (R-1). preferable.

Adjacent two groups among R ^B11 to R ^B14 of formula (B-1) may be bonded to form a ring, which improves the stability over time of the colored composition and reduces the viscosity over time. It is preferable not to form a ring because the increase can be further suppressed. Two adjacent groups among R ^B21 to R ^B26 of formula (B-2) may be bonded to form a ring. is preferably not formed. When forming a ring, the ring formed is preferably a 5- or 6-membered ring. The formed ring may further have a substituent. Examples of the substituent include a substituent T described later, and a group represented by the formula (R-1) described later, and a halogen atom or a group represented by the formula (R-1) described later. preferable.

X ^B11 in formula (B-1) represents ═O, ═NHR ^XB1 or ═S, and is preferably ═O. R ^XB1 represents a hydrogen atom or a substituent. The substituent represented by R ^XB1 includes an alkyl group and an aryl group, preferably an alkyl group.

X ^B21 in formula (B-2) represents ═O, ═NHR ^XB2 or ═S, and is preferably ═O. R ^XB2 represents a hydrogen atom or a substituent. The substituent represented by R ^XB2 includes an alkyl group and an aryl group, preferably an alkyl group.

Two adjacent groups among R ³ to R ⁷ in formula (1) may combine to form a ring. The formed ring may further have a substituent. Examples of the substituent include a substituent T described later, a group represented by formula (R-1) described later, and a group represented by formula (R-2) described later.

R ³ to R ⁷ in formula (1) are each independently preferably a hydrogen atom, an alkyl group, a hydroxy group, a halogen atom or a group represented by formula (R-2).

Preferred embodiments of R ³ to R ⁷ in formula (1) are as follows.
- An embodiment in which R ³ to R ⁷ are hydrogen atoms.
- An embodiment in which at least one of R ³ to R ⁷ is an alkyl group (preferably an alkyl group having 1 to 3 carbon atoms) and the rest are hydrogen atoms.
- An embodiment in which at least one of R ³ to R ⁷ is a group represented by formula (R-1) described later and the rest are hydrogen atoms.
An embodiment in which one of R ³ to R ⁷ is a group represented by formula (R-2) described later and the rest are hydrogen atoms.
- An embodiment in which one of R ³ to R ⁷ is a hydroxy group and the rest are hydrogen atoms.

-About ^R8-
^R8 in formula (1) represents a hydrogen atom or a hydrocarbon group. The hydrocarbon group represented by R ⁸ includes an aliphatic hydrocarbon group and an aromatic hydrocarbon group, preferably an aliphatic hydrocarbon group.
The aliphatic hydrocarbon group may be a saturated aliphatic hydrocarbon group or an unsaturated aliphatic hydrocarbon group. Moreover, the aliphatic hydrocarbon group may be linear, branched, or cyclic. The aliphatic hydrocarbon group is preferably linear or branched, more preferably linear. The number of carbon atoms in the aliphatic hydrocarbon group is preferably 1-10, more preferably 1-5, still more preferably 1-3, and particularly preferably 1.
The number of carbon atoms in the aromatic hydrocarbon group is preferably 6-20, more preferably 6-12, even more preferably 6.
R ⁸ in formula (1) is preferably a hydrogen atom because the planarity of the compound is increased, the mobility in the film is reduced, and the occurrence of thermal diffusion can be further suppressed.

R ⁸ in formula (1) may combine with R ⁷ to form a ring. The ring formed is preferably a 5- or 6-membered ring. The formed ring may further have a substituent. Examples of the substituent include a substituent T described later and a group represented by formula (R-1) described later.

- About X ¹ and X ² -
X ¹ and X ² in Formula (1) each independently represent —OH, —NHR ^X1 or —SH, and R ^{1 X1} represents a hydrogen atom or a substituent. When X ¹ and X ² are each independently —NHR ^X1 , X ¹ and X ² may be bonded.

Substituents represented by R ^X1 include an alkyl group and an aryl group. The number of carbon atoms in the alkyl group is preferably 1-20, more preferably 1-15, even more preferably 1-8. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear. The number of carbon atoms in the aryl group is preferably 6-30, more preferably 6-20, even more preferably 6-12. The alkyl group and aryl group may further have a substituent. Examples of the substituent include the substituent T described later.

Preferably, X ¹ and X ² in formula (1) are each independently —OH.

-About ^L1-
L ¹ in formula (1) represents a single bond or a divalent linking group. The divalent linking group represented by L ¹ includes an aliphatic hydrocarbon group, a heterocyclic group, a group represented by formula (C-1) and a group represented by formula (C-2). It is preferably a group represented by (C-1) or a group represented by formula (C-2), which improves the stability over time of the colored composition and can further suppress the increase in viscosity over time. For this reason, a group represented by formula (C-1) is more preferable.

The aliphatic hydrocarbon group may be a saturated aliphatic hydrocarbon group or an unsaturated aliphatic hydrocarbon group. Moreover, the aliphatic hydrocarbon group may be linear, branched, or cyclic. The number of carbon atoms in the aliphatic hydrocarbon group is preferably 1-30, more preferably 1-20, even more preferably 1-10, and particularly preferably 1-5.
The heterocyclic group is preferably a monocyclic ring or a condensed ring having 2 to 4 condensed rings. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1-3. A heteroatom constituting the ring of the heterocyclic group is preferably a nitrogen atom, an oxygen atom or a sulfur atom. The number of carbon atoms constituting the ring of the heterocyclic group is preferably 3-30, more preferably 3-18, and more preferably 3-12.
The aliphatic hydrocarbon group and heterocyclic group may have a substituent. Examples of the substituent include the groups exemplified for the substituent T described later and the groups represented by the formula (R-1).

In formula (C-1), R ^C11 to R ^C14 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^C11 to R ^C14 may combine to form a ring. often,
*1 and *2 each represent a bond, and *1 is a bond with ^X2 ;
In formula (C-2), R ^C21 to R ^C24 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ^C21 to R ^C24 may combine to form a ring. often,
X ^C21 represents =O, =NHR ^XC1 or =S, R ^XC1 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with ^X2 .

The substituents represented by R ^C11 to R ^C14 in formula (C-1) and the substituents represented by R ^C21 to R ^C24 in formula (C-2) include the substituent T described later and the formula (R-1) described later. The group represented by is mentioned. Substituents other than the group represented by formula (R-1) include halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, aryl groups, heteroaryl groups, cyano groups, nitro groups, alkoxy groups, aryloxy groups, hetero aryloxy group, acyloxy group, carbamoyloxy group, acylamino group, aminocarbonylamino group, alkoxycarbonylamino group, aryloxycarbonylamino group, sulfamoylamino group, alkylsulfonylamino group, arylsulfonylamino group, mercapto group, alkylthio group, arylthio group, heteroarylthio group, sulfamoyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, acyl group, aryloxycarbonyl group, alkoxycarbonyl group, carbamoyl group, arylazo group, heteroarylazo is preferably a group, a phosphino group, a phosphinyl group, a phosphinyloxy group, a phosphinylamino group or a silyl group, more preferably a halogen atom, an alkyl group, an alkoxy group, a nitro group, a cyano group or an amino group. A halogen atom, an alkyl group, an alkoxy group, a nitro group or a cyano group is more preferred, and a halogen atom, a nitro group or a cyano group is particularly preferred.
A halogen atom is preferably a chlorine atom, a bromine atom or a fluorine atom, and more preferably a chlorine atom.
The number of carbon atoms in the alkyl group is preferably 1-10, more preferably 1-5, even more preferably 1-3. The alkyl group may be linear, branched, or cyclic, but linear or branched is preferred because it can improve the stability of the coloring composition over time and suppress the increase in viscosity over time. is preferred, and linear is more preferred.
The number of carbon atoms in the alkoxy group is preferably 1-10, more preferably 1-5, even more preferably 1-3. The alkoxy group may be either linear or branched, but is more preferably linear because it can improve the stability over time of the colored composition and suppress the increase in viscosity over time. .

R ^C11 to R ^{C14 in formula (C-1) and R C21} ^to R ^C24 in formula (C-2) are each independently a hydrogen atom, a halogen atom, a nitro group, a cyano group, or in formula (R-1) is preferably a group represented, more preferably a hydrogen atom.
When compound A is used as a pigment derivative, at least one of R ^C11 to R ^C14 and at least one of R ^C21 to R ^C24 may be a group represented by formula (R-1). preferable.

Two adjacent groups among R ^C11 to R ^C14 in formula (C-1) may combine to form a ring. Two adjacent groups among R ^C21 to R ^C24 in formula (C-2) may combine to form a ring. The ring formed is preferably a 5- or 6-membered ring. The formed ring may further have a substituent. Examples of the substituent include a substituent T described later and a group represented by formula (R-1) described later, preferably a halogen atom, a nitro group or a cyano group.

X ^C21 in Formula (C-2) represents ═O, ═NHR ^XC1 or ═S, and R ^{1 XC1} represents a hydrogen atom or a substituent. The substituent represented by R ^XC1 includes an alkyl group and an aryl group, preferably an alkyl group.

-About Substituent T-
Substituent T includes the following groups. Halogen atom (e.g., fluorine atom, chlorine atom, bromine atom, iodine atom), alkyl group (preferably alkyl group having 1 to 30 carbon atoms), alkenyl group (preferably alkenyl group having 2 to 30 carbon atoms), alkynyl group (preferably an alkynyl group having 2 to 30 carbon atoms), an aryl group (preferably an aryl group having 6 to 30 carbon atoms), a heteroaryl group (preferably a heteroaryl group having 1 to 30 carbon atoms), an amino group (preferably amino group having 0 to 30 carbon atoms), alkoxy group (preferably alkoxy group having 1 to 30 carbon atoms), aryloxy group (preferably aryloxy group having 6 to 30 carbon atoms), heteroaryloxy group (preferably carbon 1 to 30 heteroaryloxy groups), acyl groups (preferably acyl groups having 2 to 30 carbon atoms), alkoxycarbonyl groups (preferably alkoxycarbonyl groups having 2 to 30 carbon atoms), aryloxycarbonyl groups (preferably aryloxycarbonyl group having 7 to 30 carbon atoms), heteroaryloxycarbonyl group (preferably heteroaryloxycarbonyl group having 2 to 30 carbon atoms), acyloxy group (preferably acyloxy group having 2 to 30 carbon atoms), acylamino group (preferably acylamino group having 2 to 30 carbon atoms), aminocarbonylamino group (preferably aminocarbonylamino group having 2 to 30 carbon atoms), alkoxycarbonylamino group (preferably alkoxycarbonylamino group having 2 to 30 carbon atoms) , aryloxycarbonylamino group (preferably aryloxycarbonylamino group having 7 to 30 carbon atoms), sulfamoyl group (preferably sulfamoyl group having 0 to 30 carbon atoms), sulfamoylamino group (preferably 0 to 30 carbon atoms sulfamoylamino group), carbamoyl group (preferably carbamoyl group having 1 to 30 carbon atoms), alkylthio group (preferably alkylthio group having 1 to 30 carbon atoms), arylthio group (preferably arylthio group having 6 to 30 carbon atoms) group), heteroarylthio group (preferably heteroarylthio group having 1 to 30 carbon atoms), alkylsulfonyl group (preferably alkylsulfonyl group having 1 to 30 carbon atoms), alkylsulfonylamino group (preferably 1 to 30 alkylsulfonylamino groups), arylsulfonyl groups (preferably arylsulfonyl groups having 6 to 30 carbon atoms), arylsulfonylamino groups (preferably arylsulfonylamino groups having 6 to 30 carbon atoms), heteroarylsulfonyl groups (preferably is a heteroarylsulfonyl group having 1 to 30 carbon atoms), a heteroarylsulfonylamino group (preferably a heteroarylsulfonylamino group having 1 to 30 carbon atoms), an alkylsulfinyl group (preferably an alkylsulfinyl group having 1 to 30 carbon atoms) , an arylsulfinyl group (preferably an arylsulfinyl group having 6 to 30 carbon atoms), a heteroarylsulfinyl group (preferably a heteroarylsulfinyl group having 1 to 30 carbon atoms), a ureido group (preferably a ureido group having 1 to 30 carbon atoms) ), hydroxy group, nitro group, carboxy group, sulfo group, phosphoric acid group, carboxylic acid amide group, sulfonic acid amide group, imide group, phosphino group, mercapto group, cyano group, alkylsulfino group, arylsulfino group, arylazo group, heteroarylazo group, phosphinyl group, phosphinyloxy group, phosphinylamino group, silyl group, hydrazino group, imino group; These groups may further have substituents if they are substitutable groups. Examples of the substituent include the groups described for the substituent T described above, the groups represented by the formula (R-1) described later, and the groups represented by the formula (R-2) described later.

-Regarding the group represented by the formula (R-1)-
−L ^R1 −(Y ^R1 ) _n (R−1)
In formula (R-1), L ^R1 represents a single bond or an n+1 valent linking group,
Y ^R1 represents an acid group or a basic group,
n represents an integer of 1 to 4, and n is 1 when L ^R1 is a single bond.

L ^R1 in formula (R-1) represents a single bond or an n+1-valent linking group. When Y ^R1 is a basic group, L ^R1 is preferably an n+1 valent linking group.

The n+1-valent linking group represented by L ^R1 includes an aliphatic hydrocarbon group, an aromatic hydrocarbon group, a heterocyclic group, -O-, -S-, -CO-, -COO-, -OCO-, -SO ₂ -, -NR ^L10 -, -N<, -NR ^L10 CO-, -CONR ^L10 -, -NR ^L10 SO ₂ -, -SO ₂ NR ^L10 - and groups consisting of combinations thereof. ^RL10 represents a hydrogen atom, an alkyl group or an aryl group.

The aliphatic hydrocarbon group may be a saturated aliphatic hydrocarbon group or an unsaturated aliphatic hydrocarbon group. Moreover, the aliphatic hydrocarbon group may be linear, branched, or cyclic. The number of carbon atoms in the aliphatic hydrocarbon group is preferably 1-30, more preferably 1-20, even more preferably 1-10, and particularly preferably 1-5.
The number of carbon atoms in the aromatic hydrocarbon group is preferably 6-20, more preferably 6-12, even more preferably 6.
The heterocyclic group is preferably a monocyclic ring or a condensed ring having 2 to 4 condensed rings. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1-3. A heteroatom constituting the ring of the heterocyclic group is preferably a nitrogen atom, an oxygen atom or a sulfur atom. The number of carbon atoms constituting the ring of the heterocyclic group is preferably 3-30, more preferably 3-18, and more preferably 3-12.
The aliphatic hydrocarbon group, aromatic hydrocarbon group and heterocyclic group may have a substituent. Substituents include alkyl groups and aryl groups.

The n+1-valent linking group represented by L ^R1 is a group obtained by combining —O— and an aliphatic hydrocarbon group, a group obtained by combining —NR ^L10 — and an aliphatic hydrocarbon group, or —N< and an aliphatic It is preferably a group in combination with a hydrocarbon group, more preferably a group in which —O— is combined with an aliphatic hydrocarbon group or a group in which —NR ^L10 — is combined with an aliphatic hydrocarbon group. , —O— and an aliphatic hydrocarbon group are more preferred.

Y ^R1 in formula (R-1) represents an acid group or a basic group. Acid groups represented by Y ^R1 include -COOH, -SO ₃ H, and -L ^Y1 -NH-L ^Y2 -R ^Y1 . L ^Y1 and L ^Y2 each independently represent —CO— or —SO ₂ —, and R ^Y1 represents a substituent.

At least one of L ^Y1 and L ^Y2 is preferably —SO ₂ —, and more preferably L ^Y2 is —SO ₂ —.
The substituent represented by ^RY1 includes an alkyl group and an aryl group. Alkyl groups and aryl groups may have substituents. The substituent is preferably a halogen atom, more preferably a fluorine atom.

Basic groups represented by Y ^R1 include —NR ^Y2 R ^Y3 . R ^Y2 and R ^Y3 each independently represent a hydrogen atom or a substituent, preferably a hydrogen atom, an alkyl group or an aryl group, more preferably an alkyl group. The number of carbon atoms in the alkyl group is preferably 1 to 10, more preferably 1 to 5, still more preferably 1 to 3, particularly preferably 1 or 2, and most preferably 1. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear. The number of carbon atoms in the aryl group is preferably 6-30, more preferably 6-20, even more preferably 6-12.

In —NR ^Y2 R ^Y3 , R ^Y2 and R ^Y3 may combine to form a ring. Furthermore, it may have a substituent. Examples of substituents include halogen atoms, alkyl groups, and aryl groups.

n in formula (R-1) represents an integer of 1 to 4, preferably 1 or 2, more preferably 1.

-Regarding the group represented by the formula (R-2)-
In formula (R-2), R ^1a to R ^7a each independently represent a hydrogen atom or a substituent, R ^1a and R ^2a may combine to form a ring, and R ^3a to R ^7a two adjacent groups of may be combined to form a ring,
R ^8a represents a hydrogen atom or a hydrocarbon group, R ^8a and R ^7a may combine to form a ring,
X ^1a and X ^2a each independently represent -OH, -NHR ^X1 or -SH, R ^X1 represents a hydrogen atom or a substituent,
when X ^1a and X ^2a are each independently —NHR ^X1 , X ^1a and X ^2a may be bonded;
L ^1a represents a single bond or a divalent linking group.
However, one of R ^3a to R ^7a is a bond with formula (1) or includes a bond with formula (1).

R ^1a to R ^8a , X ^1a , X ^2a and L ^1a in formula (1a) are the same as R ¹ to R ⁸ , X ¹ , X ² and L ¹ in formula (1), and the preferred ranges are also the same. be.

The compound represented by formula (1) is preferably a compound represented by formula (2).

In formula (2), R ³ to R ⁷ each independently represent a hydrogen atom or a substituent, and two adjacent groups among R ³ to R ⁷ may combine to form a ring,
R ⁸ represents a hydrogen atom or a hydrocarbon group, R ⁸ and R ⁷ may combine to form a ring,
X ¹ and X ² each independently represent -OH, -NHR ^X1 or -SH, R ^X1 represents a hydrogen atom or a substituent,
when X ¹ and X ² are each independently —NHR ^X1 , X ¹ and X ² may be bonded;
B ¹ and C ¹ each independently represent a cyclic structure.

R ³ to R ⁸ , X ¹ and X ² in formula (2) have the same definitions as R ³ to R ⁸ , X ¹ and X ² in formula (1).

Cyclic structures represented by B ¹ in formula (2) include aliphatic hydrocarbon rings, aromatic hydrocarbon rings, heterocycles, cyclic ketones, cyclic thioketones and cyclic imines, and may be represented by formula (B-1) or formula ( It is preferably a group represented by B-2), more preferably a group represented by formula (B-1).

The cyclic structure represented by C ¹ of formula (2) includes an aliphatic hydrocarbon ring, a heterocyclic ring, a group represented by formula (C-1) and a group represented by formula (C-2), A group represented by formula (C-1) or a group represented by formula (C-2) is preferable, and a group represented by formula (C-1) is more preferable.

In the compound A, the metal atoms coordinated by the compound represented by formula (1) include Cu, Zn, Ni, Al, Pd, Co, Mn and Fe, and Cu, Zn, Ni, Al or Pd is preferred, Cu, Zn, Ni or Pd is more preferred, Cu, Zn or Ni is even more preferred, and Cu or Zn is particularly preferred.

In compound A, one compound represented by formula (1) may be coordinated to these metal atoms, or two or more compounds may be coordinated. Further, the metal atom may be further coordinated with a ligand (another ligand) other than the compound represented by formula (1). Ligands include halogen atoms (chlorine atom, bromine atom, fluorine atom, etc.), heterocyclic compounds (e.g., pyridine, pyrimidine, imidazole, pyrazole, triazole, tetrazole, quinoline, 1,10-phenanthroline, etc.), protic compounds (e.g., water, methanol, ethanol, etc.), amine compounds (e.g., triethylamine, N,N,N',N'-tetramethylenediamine, ethylenediaminetetraacetic acid N,N,N',N'',N''- pentamethyldiethylenetriamine, etc.), amide compounds (eg, N,N-dimethylacetamide, N-methylpyrrolidone, etc.), dimethylsulfoxide, sulfolane, nitrile compounds (eg, acetonitrile, etc.), phosphate ester compounds, and the like. Compound A may also be a binuclear complex.

Examples of compound A include compounds represented by the following formula (1-1).

In formula (1-1), M ¹ represents a metal atom that may be coordinated with a ligand,
R ¹ to R ⁷ each independently represent a hydrogen atom or a substituent, R ¹ and R ² may combine to form a ring, and two adjacent groups among R ³ to R ⁷ are may be combined to form a ring,
R ⁸ represents a hydrogen atom or a hydrocarbon group, R ⁸ and R ⁷ may combine to form a ring,
X ¹¹ and X ¹² each independently represent ^-O- , -N ^- R ^X1 or ^S- , R ^X1 represents a hydrogen atom or a substituent,
When X ¹¹ and X ¹² are each independently -N ^- R ^X1 , X ¹¹ and X ¹² may be bonded,
L ¹ represents a single bond or a divalent linking group.

Examples of the metal atom represented by M ¹ in formula (1-1) include the metal atoms described above. The ligands that may be coordinated to the metal atom include the ligands described above.

Specific examples of compound A include compounds of structural examples (A-1) to (A-73) described in the examples below.

The compound A may be a pigment or a dye. Compound A may also be a pigment derivative. When compound A is used as a pigment derivative, the compound represented by formula (1) is preferably a compound having a group represented by formula (R-1) as a substituent.

The maximum absorption wavelength of compound A is preferably in the wavelength range of 400 to 700 nm, more preferably in the wavelength range of 400 to 600 nm.

(other colorants)
The coloring agent contained in the coloring composition of the present invention can further contain a coloring agent other than the compound A (hereinafter also referred to as another coloring agent). Other colorants used in combination include green colorants, red colorants, yellow colorants, purple colorants, blue colorants, orange colorants, and the like. Pigment derivatives can also be used as other colorants.

The other coloring agent is preferably at least one selected from the group consisting of a green coloring agent, a red coloring agent, a yellow coloring agent and an orange coloring agent, and a green coloring agent, a red coloring agent and a yellow coloring agent. It is more preferably at least one selected from the group consisting of, and more preferably at least one selected from the group consisting of green colorants and red colorants.

Examples of red colorants include diketopyrrolopyrrole compounds, anthraquinone compounds, azo compounds, naphthol compounds, azomethine compounds, xanthene compounds, quinacridone compounds, perylene compounds, thioindigo compounds, and diketopyrrolopyrrole compounds, anthraquinone compounds, azo It is preferably a compound, more preferably a diketopyrrolopyrrole compound. Also, the red colorant is preferably a pigment.

Specific examples of red colorants include C.I. I. (Color Index) Pigment Red 1, 2, 3, 4, 5, 6, 7, 9, 10, 14, 17, 22, 23, 31, 38, 41, 48: 1, 48: 2, 48: 3, 48:4, 49, 49:1, 49:2, 52:1, 52:2, 53:1, 57:1, 60:1, 63:1, 66, 67, 81:1, 81:2, 81: 3, 83, 88, 90, 105, 112, 119, 122, 123, 144, 146, 149, 150, 155, 166, 168, 169, 170, 171, 172, 175, 176, 177, 178, 179, 184, 185, 187, 188, 190, 200, 202, 206, 207, 208, 209, 210, 216, 220, 224, 226, 242, 246, 254, 255, 264, 269, 270, 272, 279, 291, 294, 295, 296, 297 and other red pigments. Further, as a red colorant, a diketopyrrolopyrrole compound in which at least one bromine atom is substituted in the structure described in JP-A-2017-201384, a diketopyrrolopyrrole described in paragraphs 0016 to 0022 of Japanese Patent No. 6248838 Pyrrole compounds, diketopyrrolopyrrole compounds described in WO 2012/102399, diketopyrrolopyrrole compounds described in WO 2012/117965, brominated diketopyrrolo described in JP 2020-085947 Pyrrole compound, naphthol azo compound described in JP-A-2012-229344, red coloring agent described in JP-A-6516119, red coloring agent described in JP-A-6525101, paragraph of JP-A-2020-090632 Brominated diketopyrrolopyrrole compounds described in No. 0229, anthraquinone compounds described in Korean Patent Publication No. 10-2019-0140741, anthraquinone compounds described in Korean Patent Publication No. 10-2019-0140744, JP 2020 A perylene compound described in JP-A-079396, a diketopyrrolopyrrole compound described in paragraphs 0025 to 0041 of JP-A-2020-066702, and the like can also be used. Also, as a red colorant, a compound having a structure in which an aromatic ring group in which a group having an oxygen atom, a sulfur atom or a nitrogen atom is bonded to an aromatic ring is bonded to a diketopyrrolopyrrole skeleton is used. can also

As a red coloring agent, C.I. I. Pigment Red 122, 177, 254, 255, 264, 269 and 272 are preferred, C.I. I. Pigment Red 254, 264, 272 are more preferred, and C.I. I. Pigment Red 254, 272 are more preferred.

Examples of green colorants include phthalocyanine compounds, squarylium compounds, etc., preferably phthalocyanine compounds, and more preferably phthalocyanine pigments. Also, the green colorant is preferably a pigment.

Specific examples of green colorants include C.I. I. Green pigments such as Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, 64, 65 and 66 are included. Further, as a green colorant, a halogenated zinc phthalocyanine having an average number of halogen atoms of 10 to 14, an average number of bromine atoms of 8 to 12, and an average number of chlorine atoms of 2 to 5 per molecule. Pigments can also be used. Specific examples include compounds described in International Publication No. 2015/118720. In addition, as a green colorant, the compound described in Chinese Patent Application No. 106909027, the phthalocyanine compound having a phosphoric acid ester as a ligand described in WO 2012/102395, described in JP 2019-008014. The phthalocyanine compound, the phthalocyanine compound described in JP-A-2018-180023, the compound described in JP-A-2019-038958, the aluminum phthalocyanine compound described in JP-A-2020-070426, JP-A-2020-076995 The core-shell type dyes described in can also be used.

As a green coloring agent, C.I. I. Pigment Green 7, 36, 58, 62 and 63 are preferred, C.I. I. Pigment Greens 36 and 58 are more preferred.
Used.

Specific examples of orange colorants include C.I. I. Pigment Orange 2, 5, 13, 16, 17: 1, 31, 34, 36, 38, 43, 46, 48, 49, 51, 52, 55, 59, 60, 61, 62, 64, 71, 73, etc. of orange pigments.

Yellow colorants include azo compounds, azomethine compounds, isoindoline compounds, pteridine compounds, quinophthalone compounds and perylene compounds. Specific examples of yellow colorants include C.I. I. Pigment Yellow 1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 24, 31, 32, 34, 35, 35: 1, 36, 36: 1, 37, 37: 1, 40, 42, 43, 53, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 83, 86, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 123, 125, 126, 127, 128, 129, 137, 138, 139, 147, 148, 150, 151, 152, 153, 154, 155, 156, 161, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 179, 180, 181, 182, 185, 187, 188, 193, 194, 199, 213, 214, 215, 228, 231, 232, 233, 234, 235, 236 and other yellow pigments.

As the yellow colorant, a nickel azobarbiturate complex having the following structure can also be used.

Further, as a yellow colorant, compounds described in JP-A-2017-201003, compounds described in JP-A-2017-197719, paragraphs 0011-0062, 0137-0276 of JP-A-2017-171912 Compounds described in paragraph numbers 0010 to 0062 and 0138 to 0295 of JP-A-2017-171913, compounds described in paragraph numbers 0011-0062 and 0139-0190 of JP-A-2017-171914, JP 2017 -Compounds described in paragraph numbers 0010 to 0065 and 0142 to 0222 of JP-A-171915, quinophthalone compounds described in paragraph numbers 0011-0034 of JP-A-2013-054339, paragraph numbers 0013- of JP-A-2014-026228 0058, the isoindoline compound described in JP-A-2018-062644, the quinophthalone compound described in JP-A-2018-203798, the quinophthalone compound described in JP-A-2018-062578, and the patent No. 6432076. Quinophthalone compounds described in JP-A-2018-155881, quinophthalone compounds described in JP-A-2018-111757, quinophthalone compounds described in JP-A-2018-040835, JP-A-2017 -Quinophthalone compounds described in JP-A-197640, quinophthalone compounds described in JP-A-2016-145282, quinophthalone compounds described in JP-A-2014-085565, quinophthalone compounds described in JP-A-2014-021139, in particular Quinophthalone compounds described in JP-A-2013-209614, quinophthalone compounds described in JP-A-2013-209435, quinophthalone compounds described in JP-A-2013-181015, quinophthalone compounds described in JP-A-2013-061622 , the quinophthalone compound described in JP-A-2013-032486, the quinophthalone compound described in JP-A-2012-226110, the quinophthalone compound described in JP-A-2008-074987, the JP-A-2008-081565. Quinophthalone compounds, quinophthalone compounds described in JP-A-2008-074986, quinophthalone compounds described in JP-A-2008-074985, quinophthalone compounds described in JP-A-2008-050420, JP-A-2008-031281 The quinophthalone compound described, the quinophthalone compound described in JP-B-48-032765, the quinophthalone compound described in JP-A-2019-008014, the quinophthalone compound described in JP-A-6607427, and JP-A-2019-073695. The methine dye described, the methine dye described in JP-A-2019-073696, the methine dye described in JP-A-2019-073697, the methine dye described in JP-A-2019-073698, Korean Patent No. 10- Compounds described in 2014-0034963, compounds described in JP 2017-095706, compounds described in Taiwan Patent Application Publication No. 201920495, compounds described in Patent No. 6607427, JP 2020-033525 Compounds described in JP-A-2020-033524, compounds described in JP-A-2020-033523, compounds described in JP-A-2020-033522, JP-A-2020-033521 Compounds described in, compounds described in WO 2020/045200, compounds described in WO 2020/045199, compounds described in WO 2020/045197, described in JP 2020-093994 The azo compound, the perylene compound described in JP-A-2020-083982, the perylene compound described in International Publication No. 2020/105346, the quinophthalone compound described in JP-A-2020-517791, represented by the following formula (QP1) A compound represented by the following formula (QP2) can also be used. Moreover, those obtained by polymerizing these compounds are also preferably used from the viewpoint of improving the color value.

In formula (QP1), X ¹ to X ¹⁶ each independently represent a hydrogen atom or a halogen atom, and Z ¹ represents an alkylene group having 1 to 3 carbon atoms. Specific examples of the compound represented by formula (QP1) include compounds described in paragraph number 0016 of Japanese Patent No. 6443711 .

In formula (QP2), Y ¹ to Y ³ each independently represent a halogen atom. n and m are integers from 0 to 6; p is an integer from 0 to 5; (n+m) is 1 or more. Specific examples of the compound represented by formula (QP2) include compounds described in paragraphs 0047 to 0048 of Japanese Patent No. 6432077.

Specific examples of purple colorants include C.I. I. Purple pigments such as Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60, 61 are included.

Specific examples of blue colorants include C.I. I. Pigment Blue 1, 2, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 22, 29, 60, 64, 66, 79, 80, 87, 88, etc. pigments. An aluminum phthalocyanine compound having a phosphorus atom can also be used as a blue colorant. Specific examples include compounds described in paragraph numbers 0022 to 0030 of JP-A-2012-247591 and paragraph number 0047 of JP-A-2011-157478.

In addition, a diarylmethane compound described in JP-A-2020-504758 can also be used as a green colorant or blue colorant.

Regarding the diffraction angle that various pigments preferably have, Japanese Patent No. 6561862, Japanese Patent No. 6413872, Japanese Patent No. 6281345, JP-A-2020-026503, JP-A-2020-033526. , the contents of which are incorporated herein. Also, the pyrrolopyrrole pigment has a crystallite size of 140 Å or less in the plane direction corresponding to the maximum peak in the X-ray diffraction pattern among the eight planes (±1±1±1) of the crystal lattice planes. is also preferred. Further, the physical properties of the pyrrolopyrrole pigment are preferably set as described in paragraphs 0028 to 0073 of JP-A-2020-097744.

As the pigment, it is also preferable to use a halogenated zinc phthalocyanine pigment having a Raman spectrum described in Japanese Patent No. 6744002 from the viewpoint of enhancing spectral characteristics. As the pigment, it is also preferable to use a dioxazine pigment with a controlled contact angle described in WO 2019/107166 from the viewpoint of viscosity adjustment.

Dyes can also be used as other coloring agents. The dye is not particularly limited, and known dyes can be used. For example, pyrazole azo, anilinoazo, triarylmethane, anthraquinone, anthrapyridone, benzylidene, oxonol, pyrazolotriazole azo, pyridone azo, cyanine, phenothiazine, pyrrolopyrazole azomethine, xanthene, Phthalocyanine-based, benzopyran-based, indigo-based, and pyrromethene-based dyes can be used.

Pigment multimers can also be used for other coloring agents. The dye multimer is preferably a dye dissolved in a solvent and used. Further, the dye multimer may form particles. When the dye multimer is particles, it is usually used in a state of being dispersed in a solvent. The particulate dye multimer can be obtained, for example, by emulsion polymerization, and specific examples include the compounds and production methods described in JP-A-2015-214682. A dye multimer has two or more dye structures in one molecule, and preferably has three or more dye structures. The upper limit is not particularly limited, but may be 100 or less. A plurality of dye structures in one molecule may be the same dye structure or different dye structures. The weight average molecular weight (Mw) of the dye multimer is preferably 2,000 to 50,000. The lower limit is more preferably 3000 or more, and even more preferably 6000 or more. The upper limit is more preferably 30,000 or less, and even more preferably 20,000 or less. Dye multimers are described in JP-A-2011-213925, JP-A-2013-041097, JP-A-2015-028144, JP-A-2015-030742, WO 2016/031442, etc. Compounds can also be used.

Other colorants include triarylmethane dye polymers described in Korean Patent Publication No. 10-2020-0028160, xanthene compounds described in JP-A-2020-117638, and those described in WO2020/174991. phthalocyanine compounds, isoindoline compounds or salts thereof described in JP-A-2020-160279, compounds represented by Formula 1 described in Korean Patent Publication No. 10-2020-0069442, Korean Patent Publication No. 10- Compound represented by Formula 1 described in 2020-0069730, Compound represented by Formula 1 described in Korean Patent Publication No. 10-2020-0069070, Korean Patent Publication No. 10-2020-0069067 Compound represented by Formula 1 described, compound represented by Formula 1 described in Korean Patent Publication No. 10-2020-0069062, halogenated zinc phthalocyanine pigment described in Patent No. 6809649, JP 2020-180176 An isoindoline compound described in JP-A-2004-203155 can be used. The other colorant may be a rotaxane, and the dye skeleton may be used in the cyclic structure of the rotaxane, may be used in the rod-like structure, or may be used in both structures.

Pigment derivatives can also be used for other colorants. Pigment derivatives include compounds having a structure in which an acid group or a basic group is bonded to a pigment skeleton.

Dye skeletons constituting pigment derivatives include a quinoline dye skeleton, a benzimidazolone dye skeleton, a benzoisoindole dye skeleton, a benzothiazole dye skeleton, an iminium dye skeleton, a squarylium dye skeleton, a croconium dye skeleton, an oxonol dye skeleton, and a pyrrolopyrrole dye. skeleton, diketopyrrolopyrrole dye skeleton, azo dye skeleton, azomethine dye skeleton, phthalocyanine dye skeleton, naphthalocyanine dye skeleton, anthraquinone dye skeleton, quinacridone dye skeleton, dioxazine dye skeleton, perinone dye skeleton, perylene dye skeleton, thioindigo dye skeleton, Isoindoline dye skeletons, isoindolinone dye skeletons, quinophthalone dye skeletons, dithiol dye skeletons, triarylmethane dye skeletons, pyrromethene dye skeletons, and the like can be mentioned.

The acid group includes a carboxy group, a sulfo group, a phosphoric acid group, a boronic acid group, a carboxylic acid amide group, a sulfonic acid amide group, an imidic acid group and salts thereof. Atoms or atomic groups constituting the salt include alkali metal ions (Li ⁺ , Na ⁺ , K ⁺ etc.), alkaline earth metal ions (Ca ²⁺ , Mg ²⁺ etc.), ammonium ions, imidazolium ions, pyridinium ions, phosphonium ion and the like. As the carboxylic acid amide group, a group represented by —NHCOR ^X1 is preferable. As the sulfonic acid amide group, a group represented by —NHSO ₂ R ^X2 is preferable. The imidic acid group is preferably a group represented by —SO ₂ NHSO ₂ R ^X3 , —CONHSO ₂ R ^X4 , —CONHCOR ^X5 or —SO ₂ NHCOR ^X6 , more preferably —SO ₂ NHSO ₂ R ^X3 . R ^X1 to R ^X6 each independently represent an alkyl group or an aryl group. The alkyl groups and aryl groups represented by R ^X1 to R ^X6 may have substituents. The substituent is preferably a halogen atom, more preferably a fluorine atom.

Basic groups include amino groups, pyridinyl groups and salts thereof, salts of ammonium groups, and phthalimidomethyl groups. Atoms or atomic groups constituting salts include hydroxide ions, halogen ions, carboxylate ions, sulfonate ions, and phenoxide ions.

Specific examples of the pigment derivative include the compounds described in Examples below, the compounds described in JP-A-56-118462, the compounds described in JP-A-63-264674, and JP-A-01-217077. Compounds described in, compounds described in JP-A-03-009961, compounds described in JP-A-03-026767, compounds described in JP-A-03-153780, described in JP-A-03-045662 The compound, the compound described in JP-A-04-285669, the compound described in JP-A-06-145546, the compound described in JP-A-06-212088, the compound described in JP-A-06-240158 , the compound described in JP-A-10-030063, the compound described in JP-A-10-195326, the compound described in paragraph numbers 0086 to 0098 of WO 2011/024896, WO 2012/102399 The compound described in paragraph numbers 0063 to 0094 of, the compound described in paragraph number 0082 of WO 2017/038252, the compound described in paragraph number 0171 of JP 2015-151530, JP 2011-252065 Compounds described in paragraph numbers 0162 to 0183 of, compounds described in JP-A-2003-081972, compounds described in Patent No. 5299151, compounds described in JP-A-2015-172732, JP-A-2014-199308 Compounds described in JP-A-2014-085562, compounds described in JP-A-2014-035351, compounds described in JP-A-2008-081565, JP-A-2019-109512 Compounds described in, compounds described in JP-A-2019-133154, diketopyrrolopyrrole compounds having a thiol linking group described in WO 2020/002106, benzimidazo described in JP-A-2018-168244 Ron compounds or salts thereof, and the like.

The content of the coloring agent in the total solid content of the coloring composition is preferably 40% by mass or more, more preferably 50% by mass or more, and even more preferably 55% by mass or more. The upper limit is preferably 80% by mass or less, more preferably 75% by mass or less, and even more preferably 70% by mass or less.

The content of the pigment in the colorant is preferably 20-100% by mass, more preferably 50-100% by mass, and even more preferably 70-100% by mass. Further, the total content of the pigment and the pigment derivative in the colorant is preferably 25 to 100% by mass, more preferably 55 to 100% by mass, and further preferably 75 to 100% by mass. preferable.

The content of compound A in the colorant is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 15% by mass or more. The upper limit can be 100% by mass, 95% by mass or less, or 90% by mass or less.

When the coloring agent contained in the coloring composition of the present invention contains compound A and a green coloring agent, the content of compound A is preferably 5 to 60 parts by weight with respect to 100 parts by weight of the green coloring agent. . The lower limit is preferably 10 parts by mass or more, more preferably 15 parts by mass or more. The upper limit is preferably 50 parts by mass or less, more preferably 40 parts by mass or less.

When the coloring agent contained in the coloring composition of the present invention contains the compound A and the red coloring agent, the content of the red coloring agent is 5 to 5 with respect to 100 parts by mass of the red coloring agent. It is preferably 50 parts by mass. The lower limit is preferably 10 parts by mass or more, more preferably 15 parts by mass or more. The upper limit is preferably 40 parts by mass or less, more preferably 30 parts by mass or less.

When the coloring composition of the present invention is used as a coloring composition for forming green pixels of a color filter, it is preferable to use a coloring agent containing a yellow coloring agent and a green coloring agent. Also, compound A is preferably a yellow colorant. The mass ratio of the yellow coloring agent and the green coloring agent is preferably yellow coloring agent: green coloring agent = 30:70 to 70:30, more preferably 30:70 to 60:40, and 30: More preferably, it is 70 to 50:50. Also, the content of compound A is preferably 5 to 60 parts by mass with respect to 100 parts by mass of the green colorant. The lower limit is preferably 10 parts by mass or more, more preferably 15 parts by mass or more. The upper limit is preferably 50 parts by mass or less, more preferably 40 parts by mass or less.

When the coloring composition of the present invention is used as a coloring composition for forming red pixels of a color filter, it is preferable to use a coloring agent containing a yellow coloring agent and a red coloring agent. Also, compound A is preferably a yellow colorant. The mass ratio of the yellow coloring agent and the red coloring agent is preferably yellow coloring agent: red coloring agent = 30:70 to 70:30, more preferably 30:70 to 60:40, and 30: More preferably, it is 70 to 50:50. Also, the content of compound A is preferably 5 to 50 parts by mass with respect to 100 parts by mass of the red colorant. The lower limit is preferably 10 parts by mass or more, more preferably 15 parts by mass or more. The upper limit is preferably 40 parts by mass or less, more preferably 30 parts by mass or less.

When the coloring composition of the present invention is used as a coloring composition for forming yellow pixels of a color filter, the content of the yellow coloring agent in the coloring agent is preferably 30% by mass or more, and is 40% by mass or more. is more preferable, and 50% by mass or more is even more preferable. Also, compound A is preferably a yellow colorant. The content of compound A in the yellow colorant is preferably 20% by mass or more, more preferably 25% by mass or more, and even more preferably 30% by mass or more. The upper limit can be 100% by mass, 95% by mass or less, or 90% by mass or less.

<<Resin>>
The coloring composition of the present invention contains a resin. The resin is blended, for example, for dispersing a pigment or the like in a coloring composition or as a binder. A resin mainly used for dispersing a pigment or the like in a coloring composition is also called a dispersant. However, such uses of the resin are only examples, and the resin can be used for purposes other than such uses.

The weight average molecular weight of the resin is preferably 3,000 to 2,000,000. The upper limit is preferably 1,000,000 or less, more preferably 500,000 or less. The lower limit is preferably 4000 or more, more preferably 5000 or more.

Examples of resins include (meth)acrylic resins, epoxy resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, polyimide resins, Polyamide resins, polyamideimide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, vinyl acetate resins, polyvinyl alcohol resins, polyvinyl acetal resins, polyurethane resins, polyurea resins, and the like. One of these resins may be used alone, or two or more may be mixed and used. As the cyclic olefin resin, norbornene resin is preferable from the viewpoint of improving heat resistance. Commercially available norbornene resins include, for example, the ARTON series manufactured by JSR Corporation (for example, ARTON F4520). Further, as the resin, the resin described in the examples of International Publication No. 2016/088645, the resin described in JP-A-2017-057265, the resin described in JP-A-2017-032685, JP Resins described in JP-A-2017-075248, resins described in JP-A-2017-066240, resins described in JP-A-2017-167513, resins described in JP-A-2017-173787, Resins described in paragraph numbers 0041 to 0060 of JP-A-2017-206689, resins described in paragraph numbers 0022-0071 of JP-A-2018-010856, blocks described in JP-A-2016-222891 Polyisocyanate resin, resin described in JP-A-2020-122052, resin described in JP-A-2020-111656, resin described in JP-A-2020-139021, JP-A-2017-138503 A resin containing a structural unit having a ring structure in its main chain and a structural unit having a biphenyl group in its side chain as described in 1) can also be used. As the resin, a resin having a fluorene skeleton can also be preferably used. Regarding the resin having a fluorene skeleton, the description of US Patent Application Publication No. 2017/0102610 can be referred to, the content of which is incorporated herein. In addition, as the resin, the resin described in paragraphs 0199 to 0233 of JP-A-2020-186373, the alkali-soluble resin described in JP-A-2020-186325, and the Korean Patent Publication No. 10-2020-0078339. A resin represented by the formula 1 can also be used.

It is preferable to use a resin having an acid group as the resin. Examples of acid groups include carboxy groups, phosphoric acid groups, sulfo groups, and phenolic hydroxy groups. Only one kind of these acid groups may be used, or two or more kinds thereof may be used. A resin having an acid group can be used, for example, as an alkali-soluble resin. The acid value of the resin having acid groups is preferably 30-500 mgKOH/g. The lower limit is preferably 50 mgKOH/g or more, more preferably 70 mgKOH/g or more. The upper limit is preferably 400 mgKOH/g or less, more preferably 200 mgKOH/g or less, still more preferably 150 mgKOH/g or less, and most preferably 120 mgKOH/g or less.

The coloring composition of the present invention also preferably contains a resin having a basic group. The resin having a basic group is preferably a resin containing a repeating unit having a basic group in its side chain. It is more preferably a polymer, and more preferably a block copolymer having a repeating unit having a basic group on its side chain and a repeating unit containing no basic group. Resins having basic groups can also be used as dispersants. The amine value of the resin having basic groups is preferably 5-300 mgKOH/g. The lower limit is preferably 10 mgKOH/g or more, more preferably 20 mgKOH/g or more. The upper limit is preferably 200 mgKOH/g or less, more preferably 100 mgKOH/g or less. Examples of the basic group contained in the resin having a basic group include groups represented by the following formula (a-1) and groups represented by the following formula (a-2).

In formula (a-1), R ^a1 and R ^a2 each independently represent a hydrogen atom, an alkyl group or an aryl group, and R ^a1 and R ^a2 may combine to form a ring;
In formula (a-2), R ^a11 represents a hydrogen atom, a hydroxy group, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an acyl group or an oxy radical, and R ^a12 to R ^a19 each independently , represents a hydrogen atom, an alkyl group or an aryl group.

The number of carbon atoms in the alkyl groups represented by R ^a1 , R ^a2 and R ^a11 to R ^a19 is preferably 1-30, more preferably 1-15, still more preferably 1-8, and particularly preferably 1-5. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear. The alkyl group may have a substituent.

The aryl group represented by R ^a1 , R ^a2 and R ^a11 to R ^a19 preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and still more preferably 6 to 12 carbon atoms. The aryl group may have a substituent.

The number of carbon atoms in the alkoxy group represented by R ^a11 is preferably 1 to 30, more preferably 1 to 15, even more preferably 1 to 8, and particularly preferably 1 to 5. The alkoxy group may have a substituent.

The aryloxy group represented by R ^a11 preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and still more preferably 6 to 12 carbon atoms. The aryloxy group may have a substituent.

The acyl group represented by R ^a11 preferably has 2 to 30 carbon atoms, more preferably 2 to 20 carbon atoms, and still more preferably 2 to 12 carbon atoms. The acyl group may have a substituent.

Commercially available resins having basic groups include DISPERBYK-161, 162, 163, 164, 166, 167, 168, 174, 182, 183, 184, 185, 2000, 2001, 2050, 2150, 2163, 2164, BYK-LPN6919 (manufactured by BYK-Chemie Japan), SOLSPERSE11200, 13240, 13650, 13940, 24000, 26000, 28000, 32000, 32500, 32550, 32600, 33000, 34750, 35100, 35200, 375 00, 38500, 39000, 53095 , 56000, 7100 (manufactured by Nippon Lubrizol), Efka PX 4300, 4330, 4046, 4060, 4080 (manufactured by BASF). Further, the resin having a basic group is a block copolymer (B) described in paragraph numbers 0063 to 0112 of JP-A-2014-219665, and described in paragraph numbers 0046-0076 of JP-A-2018-156021. block copolymers A1 can also be used, the contents of which are incorporated herein.

The coloring composition of the present invention preferably contains a resin having an acid group and a resin having a basic group. According to this aspect, the storage stability of the coloring composition can be further improved. When a resin having an acid group and a resin having a basic group are used in combination, the content of the resin having a basic group is 20 to 500 parts by mass with respect to 100 parts by mass of the resin having an acid group. It is preferably from 30 to 300 parts by mass, and even more preferably from 50 to 200 parts by mass.

As the resin, a resin containing a repeating unit derived from a compound represented by the formula (ED1) and/or a compound represented by the formula (ED2) (hereinafter, these compounds may be referred to as an "ether dimer"). It is also preferred to include

In formula (ED1), R ¹ and R ² each independently represent a hydrogen atom or a hydrocarbon group having 1 to 25 carbon atoms which may have a substituent.
In formula (ED2), R represents a hydrogen atom or an organic group having 1 to 30 carbon atoms. As a specific example of the formula (ED2), the description in JP-A-2010-168539 can be referred to.

For specific examples of ether dimers, paragraph number 0317 of JP-A-2013-029760 can be referred to, the content of which is incorporated herein.

The resin preferably contains a resin containing a repeating unit having a polymerizable group. Examples of the polymerizable group include ethylenically unsaturated bond-containing groups.

As the resin, it is also preferable to use a resin containing a repeating unit derived from the compound represented by formula (X).
In the formula, R ¹ represents a hydrogen atom or a methyl group, R ²¹ and R ²² each independently represent an alkylene group, and n represents an integer of 0-15. The number of carbon atoms in the alkylene group represented by R ²¹ and R ²² is preferably 1 to 10, more preferably 1 to 5, even more preferably 1 to 3, particularly 2 or 3. preferable. n represents an integer of 0 to 15, preferably an integer of 0 to 5, more preferably an integer of 0 to 4, and even more preferably an integer of 0 to 3.

Examples of the compound represented by formula (X) include ethylene oxide- or propylene oxide-modified (meth)acrylate of paracumylphenol. Commercially available products include Aronix M-110 (manufactured by Toagosei Co., Ltd.).

As the resin, it is also preferable to use a resin having an aromatic carboxy group (hereinafter also referred to as resin Ac). In Resin Ac, the aromatic carboxy group may be contained in the main chain of the repeating unit or may be contained in the side chain of the repeating unit. The aromatic carboxy group is preferably contained in the main chain of the repeating unit. In this specification, an aromatic carboxy group is a group having a structure in which one or more carboxy groups are bonded to an aromatic ring. In the aromatic carboxy group, the number of carboxy groups bonded to the aromatic ring is preferably 1-4, more preferably 1-2.

Resin Ac is preferably a resin containing at least one repeating unit selected from repeating units represented by formula (Ac-1) and repeating units represented by formula (Ac-2).
In formula (Ac-1), Ar ¹ represents a group containing an aromatic carboxyl group, L ¹ represents -COO- or -CONH-, and L ² represents a divalent linking group.
In formula (Ac-2), Ar ¹⁰ represents a group containing an aromatic carboxyl group, L ¹¹ represents -COO- or -CONH-, L ¹² represents a trivalent linking group, and P ¹⁰ represents a polymer represents a chain.

Examples of the aromatic carboxy group-containing group represented by Ar ¹ in formula (Ac-1) include structures derived from aromatic tricarboxylic acid anhydrides, structures derived from aromatic tetracarboxylic acid anhydrides, and the like. Aromatic tricarboxylic anhydrides and aromatic tetracarboxylic anhydrides include compounds having the following structures.

In the above formula, Q ¹ is a single bond, -O-, -CO-, -COOCH ₂ CH ₂ OCO-, -SO ₂ -, -C(CF ₃ ) ₂ -, represented by the following formula (Q-1) or a group represented by the following formula (Q-2).

The group containing an aromatic carboxyl group represented by Ar ¹ may have a polymerizable group. The polymerizable group is preferably an ethylenically unsaturated bond-containing group and a cyclic ether group, more preferably an ethylenically unsaturated bond-containing group. Specific examples of the group containing an aromatic carboxy group represented by Ar ¹ include a group represented by formula (Ar-11), a group represented by formula (Ar-12), and a group represented by formula (Ar-13). and the like.

In formula (Ar-11), n1 represents an integer of 1 to 4, preferably 1 or 2, more preferably 2.
In formula (Ar-12), n2 represents an integer of 1 to 8, preferably an integer of 1 to 4, more preferably 1 or 2, and still more preferably 2.
In formula (Ar-13), n3 and n4 each independently represent an integer of 0 to 4, preferably an integer of 0 to 2, more preferably 1 or 2, preferably 1 More preferred. However, at least one of n3 and n4 is an integer of 1 or more.
In formula (Ar-13), Q ¹ is a single bond, -O-, -CO-, -COOCH ₂ CH ₂ OCO-, -SO ₂ -, -C(CF ₃ ) ₂ -, the above formula (Q- 1) or a group represented by the above formula (Q-2).
In formulas (Ar-11) to (Ar-13), *1 represents the bonding position with ^L1 .

In formula (Ac-1), L ¹ represents -COO- or -CONH-, preferably -COO-.

The divalent linking group represented by L ² in formula (Ac-1) includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S- and these A group obtained by combining two or more of The number of carbon atoms in the alkylene group is preferably 1-30, more preferably 1-20, even more preferably 1-15. The alkylene group may be linear, branched or cyclic. The arylene group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 10 carbon atoms. An alkylene group and an arylene group may have a substituent. A hydroxy group etc. are mentioned as a substituent. The divalent linking group represented by L ² is preferably a group represented by -L ^2a -O-. L ^2a is an alkylene group; an arylene group; a combination of an alkylene group and an arylene group; at least one selected from an alkylene group and an arylene group; Examples include groups in which at least one selected from —NH— and —S— are combined, and alkylene groups are preferred. The number of carbon atoms in the alkylene group is preferably 1-30, more preferably 1-20, even more preferably 1-15. The alkylene group may be linear, branched or cyclic. An alkylene group and an arylene group may have a substituent. A hydroxy group etc. are mentioned as a substituent.

The group containing an aromatic carboxyl group represented by Ar ¹⁰ in formula (Ac-2) has the same meaning as Ar ¹ in formula (Ac-1), and the preferred range is also the same.

In formula (Ac-2), L ¹¹ represents -COO- or -CONH-, preferably -COO-.

The trivalent linking group represented by L ¹² in formula (Ac-2) includes a hydrocarbon group, -O-, -CO-, -COO-, -OCO-, -NH-, -S- and 2 of these Groups in which more than one species are combined are included. Hydrocarbon groups include aliphatic hydrocarbon groups and aromatic hydrocarbon groups. The number of carbon atoms in the aliphatic hydrocarbon group is preferably 1-30, more preferably 1-20, even more preferably 1-15. The aliphatic hydrocarbon group may be linear, branched or cyclic. The number of carbon atoms in the aromatic hydrocarbon group is preferably 6-30, more preferably 6-20, even more preferably 6-10. The hydrocarbon group may have a substituent. A hydroxy group etc. are mentioned as a substituent. The trivalent linking group represented by L ¹² is preferably a group represented by formula (L12-1), more preferably a group represented by formula (L12-2).

In formula (L12-1), L ^12b represents a trivalent linking group, X ¹ represents S, *1 represents the bonding position with L ¹¹ of formula (Ac-2), *2 represents formula ( The binding position of Ac-2) with ^P10 is shown. The trivalent linking group represented by L ^12b includes a hydrocarbon group; and at least one selected from -O-, -CO-, -COO-, -OCO-, -NH- and -S- and the like, and a hydrocarbon group or a group of a combination of a hydrocarbon group and —O— is preferred.

In formula (L12-2), L ^12c represents a trivalent linking group, X ¹ represents S, *1 represents the bonding position with L ¹¹ of formula (Ac-2), *2 represents formula ( The binding position of Ac-2) with ^P10 is shown. The trivalent linking group represented by L ^12c includes a hydrocarbon group; and at least one selected from -O-, -CO-, -COO-, -OCO-, -NH- and -S- and the like, preferably a hydrocarbon group.

P ¹⁰ in formula (Ac-2) represents a polymer chain. The polymer chain represented by ^P10 preferably has at least one repeating unit selected from poly(meth)acrylic repeating units, polyether repeating units, polyester repeating units and polyol repeating units. The weight average molecular weight of the polymer chain ^P10 is preferably 500-20,000. The lower limit is preferably 1000 or more. The upper limit is preferably 10,000 or less, more preferably 5,000 or less, and even more preferably 3,000 or less. If the weight average molecular weight of ^P10 is within the above range, the dispersibility of the pigment in the composition is good. When the resin having an aromatic carboxyl group is a resin having repeating units represented by formula (Ac-2), this resin is preferably used as a dispersant.

The polymer chain represented by ^P10 may contain an ethylenically unsaturated bond-containing group or a cyclic ether group.

The coloring composition of the present invention preferably contains a resin as a dispersant. Dispersants include acidic dispersants (acidic resins) and basic dispersants (basic resins). Here, the acidic dispersant (acidic resin) represents a resin in which the amount of acid groups is greater than the amount of basic groups. As the acidic dispersant (acidic resin), a resin having an acid group content of 70 mol % or more is preferable when the total amount of the acid group and the basic group is 100 mol %. The acid group possessed by the acidic dispersant (acidic resin) is preferably a carboxy group. The acid value of the acidic dispersant (acidic resin) is preferably 10-105 mgKOH/g. Further, a basic dispersant (basic resin) represents a resin in which the amount of basic groups is greater than the amount of acid groups. As the basic dispersant (basic resin), a resin containing more than 50 mol % of basic groups is preferable when the total amount of acid groups and basic groups is 100 mol %. The basic group possessed by the basic dispersant is preferably an amino group.

The resin used as the dispersant is also preferably a graft resin. For details of the graft resin, reference can be made to paragraphs 0025 to 0094 of JP-A-2012-255128, the contents of which are incorporated herein.

The resin used as the dispersant is also preferably a resin having an aromatic carboxy group (resin Ac). Examples of the resin having an aromatic carboxyl group include those mentioned above.

The resin used as the dispersant is also preferably a polyimine-based dispersant containing nitrogen atoms in at least one of its main chain and side chains. The polyimine-based dispersant has a main chain having a partial structure having a functional group with a pKa of 14 or less and a side chain having 40 to 10,000 atoms, and at least one of the main chain and the side chain has a basic nitrogen atom. A resin having The basic nitrogen atom is not particularly limited as long as it is a nitrogen atom exhibiting basicity. Regarding the polyimine-based dispersant, paragraph numbers 0022 to 0097 of JP-A-2009-203462 and paragraph numbers 0102-0166 of JP-A-2012-255128 can be referred to, and the contents thereof are incorporated herein. .

The resin used as the dispersant is also preferably a resin having a structure in which a plurality of polymer chains are bonded to the core. Such resins include, for example, dendrimers (including star polymers). Further, specific examples of dendrimers include polymer compounds C-1 to C-31 described in paragraphs 0196 to 0209 of JP-A-2013-043962.

The resin used as the dispersant is also preferably a resin containing a repeating unit having an ethylenically unsaturated bond-containing group in its side chain. The content of repeating units having an ethylenically unsaturated bond-containing group in the side chain is preferably 10 mol% or more, more preferably 10 to 80 mol%, more preferably 20 to 70, of the total repeating units of the resin. More preferably, it is mol %.

In addition, as a dispersant, resins described in JP-A-2018-087939, block copolymers (EB-1) to (EB-9) described in paragraphs 0219 to 0221 of Japanese Patent No. 6432077, Polyethyleneimine having a polyester side chain described in International Publication No. 2016/104803, a block copolymer described in International Publication No. 2019/125940, a block polymer having an acrylamide structural unit described in JP-A-2020-066687 , a block polymer having an acrylamide structural unit described in JP-A-2020-066688, a dispersant described in WO 2016/104803, and the like can also be used.

Dispersants are also available as commercial products, and specific examples thereof include DISPERBYK series manufactured by BYK-Chemie Japan, SOLSPERSE series manufactured by Lubrizol Japan, Efka series manufactured by BASF, and Ajinomoto Fine Techno ( Co., Ltd. Ajisper series and the like. In addition, the product described in paragraph number 0129 of JP-A-2012-137564 and the product described in paragraph number 0235 of JP-A-2017-194662 can also be used as a dispersant.

The content of the resin in the total solid content of the coloring composition is preferably 1 to 60% by mass. The lower limit is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, and particularly preferably 20% by mass or more. The upper limit is preferably 50% by mass or less, more preferably 40% by mass or less.
Further, the content of the acid group-containing resin in the total solid content of the coloring composition is preferably 1 to 60% by mass. The lower limit is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, and particularly preferably 20% by mass or more. The upper limit is preferably 50% by mass or less, more preferably 40% by mass or less.

The content of the dispersant is preferably 10 to 100 parts by mass with respect to 100 parts by mass of the pigment. The lower limit is preferably 15 parts by mass or more, more preferably 20 parts by mass or more. The upper limit is preferably 80 parts by mass or less, more preferably 60 parts by mass or less.
The coloring composition of the present invention may contain only one resin, or may contain two or more resins. When two or more resins are included, the total amount thereof is preferably within the above range.

<<Solvent>>
The coloring composition of the present invention contains a solvent. An organic solvent is mentioned as a solvent. The type of solvent is basically not particularly limited as long as it satisfies the solubility of each component and the coatability of the composition. Organic solvents include ester-based solvents, ketone-based solvents, alcohol-based solvents, amide-based solvents, ether-based solvents, and hydrocarbon-based solvents. For these details, reference can be made to paragraph number 0223 of WO2015/166779, the content of which is incorporated herein. Ester-based solvents substituted with cyclic alkyl groups and ketone-based solvents substituted with cyclic alkyl groups can also be preferably used. Specific examples of organic solvents include polyethylene glycol monomethyl ether, dichloromethane, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2 -heptanone, 3-pentanone, 4-heptanone, cyclohexanone, 2-methylcyclohexanone, 3-methylcyclohexanone, 4-methylcyclohexanone, cycloheptanone, cyclooctanone, cyclohexyl acetate, cyclopentanone, ethylcarbitol acetate, butylcarbylate tall acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, 3-methoxy-N,N-dimethylpropanamide, 3-butoxy-N,N-dimethylpropanamide, propylene glycol diacetate, 3-methoxybutanol, methyl ethyl ketone, gamma-butyrolactone, sulfolane, anisole, 1,4-diacetoxybutane, diethylene glycol monoethyl ether acetate, butane-1,3-diyl diacetate, dipropylene glycol methyl ether acetate, diacetone alcohol (also known as diacetone alcohol, 4-hydroxy-4-methyl-2-pentanone), 2-methoxypropyl acetate, 2-methoxy-1-propanol, isopropyl alcohol and the like. However, aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as organic solvents may be better reduced for environmental reasons (e.g., 50 mass ppm (parts per million), 10 ppm by mass or less, or 1 ppm by mass or less).

In the present invention, it is preferable to use an organic solvent with a low metal content, and the metal content of the organic solvent is preferably, for example, 10 mass ppb (parts per billion) or less. If necessary, an organic solvent at a mass ppt (parts per trillion) level may be used, and such an organic solvent is provided, for example, by Toyo Gosei Co., Ltd. (Chemical Daily, November 13, 2015). .

Examples of methods for removing impurities such as metals from organic solvents include distillation (molecular distillation, thin film distillation, etc.) and filtration using a filter. The filter pore size of the filter used for filtration is preferably 10 μm or less, more preferably 5 μm or less, and even more preferably 3 μm or less. The material of the filter is preferably polytetrafluoroethylene, polyethylene or nylon.

The organic solvent may contain isomers (compounds with the same number of atoms but different structures). Moreover, only one isomer may be contained, or a plurality of isomers may be contained.

The content of peroxide in the organic solvent is preferably 0.8 mmol/L or less, and more preferably substantially free of peroxide.

The content of the solvent in the coloring composition is preferably 10-95% by mass, more preferably 20-90% by mass, and even more preferably 30-90% by mass.

In addition, from the viewpoint of environmental regulations, it is preferable that the colored composition of the present invention does not substantially contain environmentally regulated substances. In the present invention, "substantially free of environmentally regulated substances" means that the content of environmentally regulated substances in the colored composition is 50 ppm by mass or less, preferably 30 ppm by mass or less. , is more preferably 10 mass ppm or less, and particularly preferably 1 mass ppm or less. Environmental control substances include, for example, benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene. These comply with environmental regulations such as the REACH (Registration Evaluation Authorization and Restriction of Chemicals) Regulations, the PRTR (Pollutant Release and Transfer Register) Law, and the VOC (Volatile Organic Compounds) Regulations. It is registered as a substance, and the amount used and handling methods are strictly regulated. These compounds may be used as a solvent when producing each component used in the coloring composition, and may be mixed into the coloring composition as a residual solvent. From the viewpoint of safety to humans and consideration for the environment, it is preferable to reduce these substances as much as possible. As a method for reducing the amount of environmentally regulated substances, there is a method in which the system is heated or decompressed to raise the temperature to the boiling point of the environmentally regulated substances or higher, and the environmentally regulated substances are distilled off from the system. In the case of distilling off a small amount of environmentally regulated substances, it is also useful to azeotrope with a solvent having a boiling point equivalent to that of the solvent in order to increase the efficiency. In addition, when a compound having radical polymerizability is contained, a polymerization inhibitor or the like is added and distilled off under reduced pressure in order to suppress the radical polymerization reaction from progressing during the vacuum distillation and the intermolecular cross-linking. may These distillation methods are the raw material stage, the reaction product of the raw materials (for example, the resin solution or polyfunctional monomer solution after polymerization), or the colored composition stage produced by mixing these compounds. It is possible at any stage such as

<<polymerizable compound>>
The coloring composition of the present invention preferably contains a polymerizable compound. As the polymerizable compound, known compounds that can be crosslinked by radicals, acids or heat can be used. The polymerizable compound is preferably a compound having an ethylenically unsaturated bond-containing group. Examples of ethylenically unsaturated bond-containing groups include vinyl groups, (meth)allyl groups, and (meth)acryloyl groups. The polymerizable compound used in the present invention is preferably a radically polymerizable compound.

The polymerizable compound may be in any chemical form such as monomer, prepolymer, oligomer, etc., but monomer is preferred. The molecular weight of the polymerizable compound is preferably 100-3000. The upper limit is more preferably 2000 or less, and even more preferably 1500 or less. The lower limit is more preferably 150 or more, even more preferably 250 or more.

The polymerizable compound is preferably a compound containing 3 or more ethylenically unsaturated bond-containing groups, more preferably a compound containing 3 to 15 ethylenically unsaturated bond-containing groups, an ethylenically unsaturated bond Compounds containing 3 to 6 containing groups are more preferred. The polymerizable compound is preferably a 3- to 15-functional (meth)acrylate compound, more preferably a 3- to 6-functional (meth)acrylate compound. Specific examples of the polymerizable compound include paragraph numbers 0095 to 0108 of JP-A-2009-288705, paragraph 0227 of JP-A-2013-029760, paragraph numbers 0254-0257 of JP-A-2008-292970, and JP-A-2008-292970. 2013-253224, paragraphs 0034 to 0038, JP 2012-208494, paragraph 0477, JP 2017-048367, JP 6057891, the compound described in JP 6031807 , the contents of which are incorporated herein.

As the polymerizable compound, dipentaerythritol tri(meth)acrylate (commercially available as KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetra(meth)acrylate (commercially available as KAYARAD D-320 manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol penta(meth)acrylate (as a commercial product, KAYARAD D-310; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol hexa(meth)acrylate (as a commercial product, KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd., NK Ester A-DPH-12E; manufactured by Shin-Nakamura Chemical Co., Ltd.), and their (meth)acryloyl groups via ethylene glycol and/or propylene glycol residues Compounds of conjugated structures (eg SR454, SR499, commercially available from Sartomer) are preferred. Further, as the polymerizable compound, diglycerin EO (ethylene oxide) modified (meth) acrylate (commercially available M-460; manufactured by Toagosei), pentaerythritol tetraacrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., NK Ester A -TMMT), 1,6-hexanediol diacrylate (manufactured by Nippon Kayaku Co., Ltd., KAYARAD HDDA), RP-1040 (manufactured by Nippon Kayaku Co., Ltd.), Aronix TO-2349 (manufactured by Toagosei Co., Ltd.) , NK Oligo UA-7200 (manufactured by Shin-Nakamura Chemical Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600, LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), light acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.), etc. are used. can also

Polymerizable compounds include trimethylolpropane tri(meth)acrylate, trimethylolpropane propyleneoxy-modified tri(meth)acrylate, trimethylolpropane ethyleneoxy-modified tri(meth)acrylate, isocyanuric acid ethyleneoxy-modified tri(meth)acrylate, Trifunctional (meth)acrylate compounds such as pentaerythritol tri(meth)acrylate can also be used. Commercial products of trifunctional (meth)acrylate compounds include Aronix M-309, M-310, M-321, M-350, M-360, M-313, M-315, M-306 and M-305. , M-303, M-452, M-450 (manufactured by Toagosei Co., Ltd.), NK Ester A9300, A-GLY-9E, A-GLY-20E, A-TMM-3, A-TMM-3L, A -TMM-3LM-N, A-TMPT, TMPT (manufactured by Shin-Nakamura Chemical Co., Ltd.), KAYARAD GPO-303, TMPTA, THE-330, TPA-330, PET-30 (manufactured by Nippon Kayaku Co., Ltd.) etc.

A compound having an acid group can also be used as the polymerizable compound. By using a polymerizable compound having an acid group, the polymerizable compound in an unexposed area is easily removed during development, and generation of development residue can be suppressed. The acid group includes a carboxy group, a sulfo group, a phosphoric acid group and the like, and a carboxy group is preferred. Examples of the polymerizable compound having an acid group include succinic acid-modified dipentaerythritol penta(meth)acrylate. Commercially available polymerizable compounds having an acid group include Aronix M-510, M-520 and Aronix TO-2349 (manufactured by Toagosei Co., Ltd.). The acid value of the polymerizable compound having an acid group is preferably 0.1-40 mgKOH/g, more preferably 5-30 mgKOH/g. When the acid value of the polymerizable compound is 0.1 mgKOH/g or more, the solubility in the developer is good, and when it is 40 mgKOH/g or less, it is advantageous in terms of production and handling.

A compound having a caprolactone structure can also be used as the polymerizable compound. Commercially available polymerizable compounds having a caprolactone structure include KAYARAD DPCA-20, DPCA-30, DPCA-60, and DPCA-120 (manufactured by Nippon Kayaku Co., Ltd.).

A polymerizable compound having an alkyleneoxy group can also be used as the polymerizable compound. The polymerizable compound having an alkyleneoxy group is preferably a polymerizable compound having an ethyleneoxy group and / or a propyleneoxy group, more preferably a polymerizable compound having an ethyleneoxy group, and 3 to 4 having 4 to 20 ethyleneoxy groups. A hexafunctional (meth)acrylate compound is more preferred. Commercially available polymerizable compounds having an alkyleneoxy group include, for example, SR-494, a tetrafunctional (meth)acrylate having four ethyleneoxy groups manufactured by Sartomer Co., Ltd., and an isobutyleneoxy group manufactured by Nippon Kayaku Co., Ltd. KAYARAD TPA-330, which is a trifunctional (meth)acrylate having three.

A polymerizable compound having a fluorene skeleton can also be used as the polymerizable compound. Commercially available polymerizable compounds having a fluorene skeleton include Ogsol EA-0200 and EA-0300 (manufactured by Osaka Gas Chemicals Co., Ltd., (meth)acrylate monomers having a fluorene skeleton).

As the polymerizable compound, it is also preferable to use a compound that does not substantially contain environmentally regulated substances such as toluene. Commercially available products of such compounds include KAYARAD DPHA LT and KAYARAD DPEA-12 LT (manufactured by Nippon Kayaku Co., Ltd.).

The content of the polymerizable compound in the total solid content of the coloring composition is preferably 0.1 to 50% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more, and even more preferably 3% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less, and even more preferably 25% by mass or less. The coloring composition of the present invention may contain only one type of polymerizable compound, or may contain two or more types. When two or more polymerizable compounds are included, the total amount thereof is preferably within the above range.

<<Photoinitiator>>
The coloring composition of the present invention preferably contains a photopolymerization initiator. The photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, compounds having photosensitivity to light in the ultraviolet range to the visible range are preferred. The photopolymerization initiator is preferably a photoradical polymerization initiator.

Examples of photopolymerization initiators include halogenated hydrocarbon derivatives (e.g., compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds, hexaarylbiimidazole compounds, oxime compounds, organic peroxides, thio compounds, ketone compounds, aromatic onium salts, α-hydroxyketone compounds, α-aminoketone compounds and the like. From the viewpoint of exposure sensitivity, photopolymerization initiators include trihalomethyltriazine compounds, benzyldimethylketal compounds, α-hydroxyketone compounds, α-aminoketone compounds, acylphosphine compounds, phosphine oxide compounds, metallocene compounds, oxime compounds, hexaarylbi imidazole compounds, onium compounds, benzothiazole compounds, benzophenone compounds, acetophenone compounds, cyclopentadiene-benzene-iron complexes, halomethyloxadiazole compounds and 3-aryl-substituted coumarin compounds, oxime compounds, α-hydroxyketones compounds, α-aminoketone compounds, and acylphosphine compounds, more preferably oxime compounds. Further, as the photopolymerization initiator, compounds described in paragraphs 0065 to 0111 of JP-A-2014-130173, compounds described in Japanese Patent No. 6301489, MATERIAL STAGE 37-60p, vol. 19, No. 3, the peroxide photopolymerization initiator described in 2019, the photopolymerization initiator described in International Publication No. 2018/221177, the photopolymerization initiator described in International Publication No. 2018/110179, JP 2019-043864 The photopolymerization initiator described in JP-A-2019-044030, the photopolymerization initiator described in JP-A-2019-167313, the peroxide-based initiator described in JP-A-2020-055992. An aminoacetophenone-based initiator having an oxazolidine group described, an oxime-based photopolymerization initiator described in JP-A-2013-190459, a polymer described in JP-A-2020-172619, and International Publication No. 2020/152120. and the compounds of Formula 1 described, the contents of which are incorporated herein.

Specific examples of hexaarylbiimidazole compounds include 2,2′,4-tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4,5-diphenyl-1,1′-biimidazole, etc. is mentioned.

Commercially available α-hydroxyketone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (manufactured by IGM Resins B.V.), Irgacure 184, Irgacure 1173, Irgacure 2959, Irgacure 127 (above, BASF company) and the like. Commercially available α-aminoketone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (manufactured by IGM Resins B.V.), Irgacure 907, Irgacure 369, Irgacure 369E, and Irgacure 3. 79EG (above, BASF made), etc. Commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (manufactured by IGM Resins B.V.), Irgacure 819 and Irgacure TPO (manufactured by BASF).

Examples of oxime compounds include compounds described in JP-A-2001-233842, compounds described in JP-A-2000-080068, compounds described in JP-A-2006-342166, J. Am. C. S. Compounds described in Perkin II (1979, pp.1653-1660); C. S. Compounds described in Perkin II (1979, pp.156-162), compounds described in Journal of Photopolymer Science and Technology (1995, pp.202-232), compounds described in JP-A-2000-066385, Compounds described in JP-A-2004-534797, compounds described in JP-A-2006-342166, compounds described in JP-A-2017-019766, compounds described in Patent No. 6065596, International Publication No. 2015 / 152153, compounds described in WO 2017/051680, compounds described in JP 2017-198865, compounds described in paragraphs 0025 to 0038 of WO 2017/164127, Compounds described in International Publication No. 2013/167515, compounds described in Japanese Patent No. 5430746, compounds described in Japanese Patent No. 5647738, and the like. Specific examples of oxime compounds include 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminobutane-2-one, 2-acetoxyiminopentane-3-one, 2-acetoxyimino-1-phenylpropan-1-one, 2-benzoyloxyimino-1-phenylpropan-1-one, 3-(4-toluenesulfonyloxy)iminobutan-2-one, 2-ethoxycarbonyloxyimino -1-phenylpropane-1-one, 1-[4-(phenylthio)phenyl]-3-cyclohexyl-propane-1,2-dione-2-(O-acetyloxime) and the like. Commercially available products include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, Irgacure OXE04 (manufactured by BASF), TR-PBG-304, TR-PBG-327 (manufactured by Tronly), and Adeka Optomer N-1919 (manufactured by Tronly). ) manufactured by ADEKA, photopolymerization initiator 2) described in JP-A-2012-014052. As the oxime compound, it is also preferable to use a compound having no coloring property or a compound having high transparency and resistance to discoloration. Commercially available products include ADEKA Arkles NCI-730, NCI-831 and NCI-930 (manufactured by ADEKA Corporation).

An oxime compound having a fluorene ring can also be used as the photopolymerization initiator. Specific examples of the oxime compound having a fluorene ring include compounds described in JP-A-2014-137466, compounds described in Japanese Patent No. 6636081, and compounds described in Korean Patent Publication No. 10-2016-0109444. mentioned.

As the photopolymerization initiator, an oxime compound having a skeleton in which at least one benzene ring of the carbazole ring is a naphthalene ring can also be used. Specific examples of such oxime compounds include compounds described in WO2013/083505.

An oxime compound having a fluorine atom can also be used as the photopolymerization initiator. Specific examples of the oxime compound having a fluorine atom include compounds described in JP-A-2010-262028, compounds 24, 36 to 40 described in JP-A-2014-500852, and JP-A-2013-164471. and the compound (C-3) of.

An oxime compound having a nitro group can be used as the photopolymerization initiator. The oxime compound having a nitro group is also preferably a dimer. Specific examples of the oxime compound having a nitro group include the compounds described in paragraph numbers 0031 to 0047 of JP-A-2013-114249 and paragraph numbers 0008-0012 and 0070-0079 of JP-A-2014-137466; Compounds described in paragraphs 0007 to 0025 of Japanese Patent No. 4223071 and ADEKA Arkles NCI-831 (manufactured by ADEKA Corporation) can be mentioned.

An oxime compound having a benzofuran skeleton can also be used as the photopolymerization initiator. Specific examples include OE-01 to OE-75 described in WO 2015/036910.

As the photopolymerization initiator, an oxime compound in which a substituent having a hydroxyl group is bonded to the carbazole skeleton can also be used. Examples of such a photopolymerization initiator include the compounds described in International Publication No. 2019/088055.

Specific examples of oxime compounds preferably used in the present invention are shown below, but the present invention is not limited to these.

The oxime compound is preferably a compound having a maximum absorption wavelength in the wavelength range of 350 to 500 nm, more preferably a compound having a maximum absorption wavelength in the wavelength range of 360 to 480 nm. Further, the molar extinction coefficient of the oxime compound at a wavelength of 365 nm or a wavelength of 405 nm is preferably high from the viewpoint of sensitivity, more preferably 1000 to 300000, further preferably 2000 to 300000, even more preferably 5000 to 200000. It is particularly preferred to have The molar extinction coefficient of a compound can be measured using known methods. For example, it is preferably measured at a concentration of 0.01 g/L using an ethyl acetate solvent with a spectrophotometer (Cary-5 spectrophotometer manufactured by Varian).

As the photopolymerization initiator, it is also preferable to use a combination of Irgacure OXE01 (manufactured by BASF) and/or Irgacure OXE02 (manufactured by BASF) and Omnirad 2959 (manufactured by IGM Resins B.V.).

As the photopolymerization initiator, a bifunctional or trifunctional or higher functional photoradical polymerization initiator may be used. By using such a radical photopolymerization initiator, two or more radicals are generated from one molecule of the radical photopolymerization initiator, so good sensitivity can be obtained. In addition, when a compound having an asymmetric structure is used, the crystallinity is reduced, the solubility in a solvent or the like is improved, the precipitation becomes difficult over time, and the stability over time of the colored composition can be improved. . Specific examples of bifunctional or trifunctional or higher photoradical polymerization initiators include Japanese Patent Publication No. 2010-527339, Japanese Patent Publication No. 2011-524436, International Publication No. 2015/004565, and Japanese Patent Publication No. 2016-532675. Paragraph numbers 0407 to 0412, dimers of oxime compounds described in paragraph numbers 0039 to 0055 of International Publication No. 2017/033680, compound (E) and compounds described in JP-A-2013-522445 ( G), Cmpd1 to 7 described in International Publication No. 2016/034963, oxime ester photoinitiators described in paragraph number 0007 of JP 2017-523465, JP 2017-167399 Photoinitiators described in paragraph numbers 0020 to 0033, photoinitiators (A) described in paragraph numbers 0017 to 0026 of JP-A-2017-151342, described in Japanese Patent No. 6469669 and oxime ester photoinitiators.

The content of the photopolymerization initiator in the total solid content of the coloring composition is preferably 0.1 to 30% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 15% by mass or less. The coloring composition of the present invention may contain only one type of photopolymerization initiator, or may contain two or more types. When two or more photopolymerization initiators are included, the total amount thereof preferably falls within the above range.

<<Infrared Absorber>>
The coloring composition of the present invention can contain an infrared absorbing agent. For example, in the case of forming an infrared transmission filter using the coloring composition of the present invention, the wavelength of the light transmitted through the film obtained by containing an infrared absorbing agent in the coloring composition is shifted to the longer wavelength side. can be made The infrared absorbing agent is preferably a compound having a maximum absorption wavelength on the longer wavelength side than the wavelength of 700 nm. The infrared absorbing agent is preferably a compound having a maximum absorption wavelength in the wavelength range of 700 nm or more and 1800 nm or less. In addition, the ratio A ¹ /A ² between the absorbance A ¹ at a wavelength of 500 nm and the absorbance A ² at the maximum absorption wavelength of the infrared absorbent is preferably 0.08 or less, more preferably 0.04 or less. .

Examples of infrared absorbers include pyrrolopyrrole compounds, cyanine compounds, squarylium compounds, phthalocyanine compounds, naphthalocyanine compounds, quaterrylene compounds, merocyanine compounds, croconium compounds, oxonol compounds, iminium compounds, dithiol compounds, triarylmethane compounds, pyrromethene compounds, and azomethine. compounds, anthraquinone compounds, dibenzofuranone compounds, dithiolene metal complexes, metal oxides, metal borides, and the like. As the pyrrolopyrrole compound, compounds described in paragraph numbers 0016 to 0058 of JP-A-2009-263614, compounds described in paragraph numbers 0037-0052 of JP-A-2011-068731, WO 2015/166873 Compounds described in Paragraph Nos. 0010 to 0033 and the like. Examples of the squarylium compound include compounds described in paragraph numbers 0044 to 0049 of JP-A-2011-208101, compounds described in paragraph numbers 0060 to 0061 of Japanese Patent No. 6065169, and paragraph number 0040 of WO 2016/181987. Compounds described in, compounds described in JP-A-2015-176046, compounds described in paragraph No. 0072 of WO 2016/190162, compounds described in paragraph Nos. 0196 to 0228 of JP-A-2016-074649 , the compound described in paragraph number 0124 of JP 2017-067963, the compound described in WO 2017/135359, the compound described in JP 2017-114956, the compound described in Patent 6197940, Examples include compounds described in International Publication No. 2016/120166. As the cyanine compound, compounds described in paragraphs 0044 to 0045 of JP-A-2009-108267, compounds described in paragraphs 0026-0030 of JP-A-2002-194040, and JP-A-2015-172004. The compound, the compound described in JP-A-2015-172102, the compound described in JP-A-2008-088426, the compound described in paragraph number 0090 of WO 2016/190162, JP-A-2017-031394 and the like compounds described in. Examples of croconium compounds include compounds described in JP-A-2017-082029. As the iminium compound, for example, compounds described in JP-A-2008-528706, compounds described in JP-A-2012-012399, compounds described in JP-A-2007-092060, International Publication No. 2018/043564 and the compounds described in paragraphs 0048 to 0063 of. Examples of the phthalocyanine compound include compounds described in paragraph number 0093 of JP-A-2012-077153, oxytitanium phthalocyanine described in JP-A-2006-343631, and paragraph numbers 0013 to 0029 of JP-A-2013-195480. compounds, vanadium phthalocyanine compounds described in Patent No. 6081771, compounds described in WO 2020/071470, paragraphs 0020 to 0024 of WO 2018/186489, paragraphs of WO 2020/071470 Compounds described in Nos. 0029-0076 can be mentioned. Examples of naphthalocyanine compounds include compounds described in paragraph number 0093 of JP-A-2012-077153. Dithiolene metal complexes include compounds described in Japanese Patent No. 5733804. Examples of metal oxides include indium tin oxide, antimony tin oxide, zinc oxide, Al-doped zinc oxide, fluorine-doped tin dioxide, niobium-doped titanium dioxide, and tungsten oxide. For details of tungsten oxide, paragraph 0080 of JP-A-2016-006476 can be referred to, the content of which is incorporated herein. Examples of metal borides include lanthanum boride. Commercially available lanthanum boride products include LaB ₆ -F (manufactured by Nippon New Metal Co., Ltd.). Moreover, as a metal boride, the compound as described in international publication 2017/119394 can also be used. Commercially available products of indium tin oxide include F-ITO (manufactured by DOWA Hitech Co., Ltd.).

Further, as the infrared absorbing agent, the squarylium compound described in JP-A-2017-197437, the squarylium compound described in JP-A-2017-025311, the squarylium compound described in WO 2016/154782, and the patent No. 5884953. No. 6036689, squarylium compounds described in Japanese Patent No. 5810604, squarylium compounds described in paragraphs 0090 to 0107 of International Publication No. 2017/213047, Pyrrole ring-containing compounds described in paragraphs 0019 to 0075 of JP 2018-054760, pyrrole ring-containing compounds described in paragraphs 0078 to 0082 of JP 2018-040955, paragraphs of JP 2018-002773 Pyrrole ring-containing compounds described in numbers 0043 to 0069, squarylium compounds having an aromatic ring at the amide α-position described in paragraph numbers 0024 to 0086 of JP-A-2018-041047, and those described in JP-A-2017-179131 Amide-linked squarylium compounds, compounds having a pyrrole-bis-type squarylium skeleton or croconium skeleton described in JP-A-2017-141215, dihydrocarbazole-bis-type squarylium compounds described in JP-A-2017-082029, JP-A-2017- Asymmetric compounds described in paragraph numbers 0027 to 0114 of 068120, pyrrole ring-containing compounds (carbazole type) described in JP-A-2017-067963, phthalocyanine compounds described in Japanese Patent No. 6251530, etc. can also be used.

Further, as an infrared absorbing agent, tungsten oxide represented by the following formula described in paragraph 0025 of EP 3628645 can also be used.
M ¹ _a M ² _b W _c O _d (P(O) _n R _m ) _e
M ¹ and M ² represent an ammonium cation or a metal cation, a is 0.01 to 0.5, b is 0 to 0.5, c is 1, and d is 2.5 to 3. , e is 0.01 to 0.75, n is 1, 2 or 3, m is 1, 2 or 3, R is a hydrocarbon group optionally having a substituent represent.

When the coloring composition of the present invention contains an infrared absorbing agent, the content of the infrared absorbing agent in the total solid content of the coloring composition is preferably 1 to 40% by mass. The lower limit is preferably 2% by mass or more, more preferably 5% by mass or more, and even more preferably 10% by mass or more. The upper limit is preferably 30% by mass or less, more preferably 25% by mass or less. The coloring composition of the present invention may contain only one type of infrared absorbing agent, or may contain two or more types thereof. When two or more kinds of infrared absorbing agents are included, the total amount thereof is preferably within the above range.

<<Compound Having a Cyclic Ether Group>>
The coloring composition of the present invention can contain a compound having a cyclic ether group. Cyclic ether groups include epoxy groups and oxetanyl groups. The compound having a cyclic ether group is preferably a compound having an epoxy group (hereinafter also referred to as an epoxy compound).

A compound having a cyclic ether group may be a low-molecular compound (for example, a molecular weight of less than 1000) or a macromolecule (for example, a molecular weight of 1000 or more, and in the case of a polymer, a weight-average molecular weight of 1000 or more). The weight average molecular weight of the cyclic ether group is preferably from 200 to 100,000, more preferably from 500 to 50,000. The upper limit of the weight average molecular weight is preferably 10,000 or less, more preferably 5,000 or less, and even more preferably 3,000 or less.

As the compound having a cyclic ether group, compounds described in paragraph numbers 0034 to 0036 of JP-A-2013-011869, compounds described in paragraph numbers 0147-0156 of JP-A-2014-043556, JP 2014 The compounds described in paragraphs 0085 to 0092 of JP-A-089408 and the compounds described in JP-A-2017-179172 can also be used.

Epoxy resin can be preferably used as the epoxy compound. Examples of epoxy resins include epoxy resins that are glycidyl etherified compounds of phenolic compounds, epoxy resins that are glycidyl etherified compounds of various novolak resins, alicyclic epoxy resins, aliphatic epoxy resins, heterocyclic epoxy resins, glycidyl esters, epoxy resins, glycidylamine-based epoxy resins, epoxy resins obtained by glycidylating halogenated phenols, condensation products of silicon compounds with epoxy groups and other silicon compounds, polymerizable unsaturated compounds with epoxy groups and others and copolymers with other polymerizable unsaturated compounds. The epoxy equivalent of the epoxy resin is preferably 310 to 3300 g/eq, more preferably 310 to 1700 g/eq, even more preferably 310 to 1000 g/eq.

Examples of commercially available compounds having a cyclic ether group include EHPE3150 (manufactured by Daicel Corporation), EPICLON N-695 (manufactured by DIC Corporation), Marproof G-0150M, G-0105SA, G-0130SP, G -0250SP, G-1005S, G-1005SA, G-1010S, G-2050M, G-01100, G-01758 (these are epoxy group-containing polymers manufactured by NOF Corporation) and the like.

The content of the compound having a cyclic ether group in the total solid content of the coloring composition is preferably 0.1 to 20% by mass. The lower limit is, for example, preferably 0.5% by mass or more, more preferably 1% by mass or more. The upper limit is, for example, preferably 15% by mass or less, more preferably 10% by mass or less. The coloring composition of the present invention may contain only one type of compound having a cyclic ether group, or may contain two or more types. When two or more compounds having a cyclic ether group are included, the total amount thereof is preferably within the above range.

<<Curing accelerator>>
The coloring composition of the present invention can contain a curing accelerator. Curing accelerators include thiol compounds, methylol compounds, amine compounds, phosphonium salt compounds, amidine salt compounds, amide compounds, base generators, isocyanate compounds, alkoxysilane compounds, onium salt compounds and the like. Specific examples of the curing accelerator include compounds described in paragraph numbers 0094 to 0097 of WO 2018/056189, compounds described in paragraph numbers 0246 to 0253 of JP 2015-034963, JP 2013-041165 Compounds described in paragraphs 0186 to 0251 of the publication, ionic compounds described in JP 2014-055114, compounds described in paragraphs 0071 to 0080 of JP 2012-150180, JP 2011-253054 Alkoxysilane compounds having an epoxy group described in JP-A-2005-200557, compounds described in paragraphs 0085 to 0092 of Japanese Patent No. 5765059, carboxy group-containing epoxy curing agents described in JP-A-2017-036379, and the like. The content of the curing accelerator in the total solid content of the coloring composition is preferably 0.3 to 8.9% by mass, more preferably 0.8 to 6.4% by mass.

<<Ultraviolet absorber>>
The coloring composition of the present invention can contain an ultraviolet absorber. Examples of ultraviolet absorbers include conjugated diene compounds, aminodiene compounds, salicylate compounds, benzophenone compounds, benzotriazole compounds, acrylonitrile compounds, hydroxyphenyltriazine compounds, indole compounds, triazine compounds, and dibenzoyl compounds. Specific examples of such compounds include paragraph numbers 0038 to 0052 of JP-A-2009-217221, paragraph numbers 0052-0072 of JP-A-2012-208374, paragraph numbers 0317-0317 of JP-A-2013-068814. 0334, and compounds described in paragraphs 0061 to 0080 of JP-A-2016-162946, the contents of which are incorporated herein. Specific examples of the ultraviolet absorber include compounds having the following structures. Examples of commercially available UV absorbers include UV-503 (manufactured by Daito Chemical Co., Ltd.), Tinuvin series and Uvinul series manufactured by BASF, and Sumisorb series manufactured by Sumika Chemtex Co., Ltd. . Moreover, as a benzotriazole compound, the MYUA series made from Miyoshi oil and fats (Chemical Daily, February 1, 2016) is mentioned. In addition, the ultraviolet absorber is a compound described in paragraph numbers 0049 to 0059 of Japanese Patent No. 6268967, a compound described in paragraph numbers 0059 to 0076 of WO 2016/181987, and WO 2020/137819. A thioaryl group-substituted benzotriazole-type ultraviolet absorber described in can also be used.

The content of the ultraviolet absorber in the total solid content of the coloring composition is preferably 0.01 to 10% by mass, more preferably 0.01 to 5% by mass. The coloring composition of the present invention may contain only one type of UV absorber, or may contain two or more types. When two or more ultraviolet absorbers are included, the total amount thereof is preferably within the above range.

<<polymerization inhibitor>>
The coloring composition of the present invention can contain a polymerization inhibitor. Polymerization inhibitors include hydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, tert-butylcatechol, benzoquinone, 4,4′-thiobis(3-methyl-6-tert-butylphenol), 2,2′-methylenebis(4-methyl-6-t-butylphenol), N-nitrosophenylhydroxyamine salts (ammonium salts, cerous salts, etc.). Among them, p-methoxyphenol is preferred. The content of the polymerization inhibitor in the total solid content of the coloring composition is preferably 0.0001 to 5% by mass. The coloring composition of the present invention may contain only one type of polymerization inhibitor, or may contain two or more types. When two or more polymerization inhibitors are included, the total amount thereof is preferably within the above range.

<<Silane coupling agent>>
The coloring composition of the present invention can contain a silane coupling agent. As used herein, a silane coupling agent means a silane compound having a hydrolyzable group and other functional groups. Further, the hydrolyzable group refers to a substituent that is directly bonded to a silicon atom and capable of forming a siloxane bond by at least one of hydrolysis reaction and condensation reaction. Hydrolyzable groups include, for example, halogen atoms, alkoxy groups, acyloxy groups and the like, with alkoxy groups being preferred. That is, the silane coupling agent is preferably a compound having an alkoxysilyl group. Examples of functional groups other than hydrolyzable groups include vinyl group, (meth)allyl group, (meth)acryloyl group, mercapto group, epoxy group, oxetanyl group, amino group, ureido group, sulfide group and isocyanate group. , phenyl group, etc., and amino group, (meth)acryloyl group and epoxy group are preferred. Specific examples of the silane coupling agent include N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-602), N-β-aminoethyl-γ-amino propyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-603), N-β-aminoethyl-γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBE-602), γ-aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-903), γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBE-903), 3-methacryloxy Propylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-502), 3-methacryloxypropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KBM-503), and the like. Further, specific examples of the silane coupling agent include compounds described in paragraph numbers 0018 to 0036 of JP-A-2009-288703 and compounds described in paragraph numbers 0056-0066 of JP-A-2009-242604. , the contents of which are incorporated herein. The content of the silane coupling agent in the total solid content of the coloring composition is preferably 0.01 to 15% by mass, more preferably 0.05 to 10% by mass. The coloring composition of the present invention may contain only one type of silane coupling agent, or may contain two or more types. When two or more silane coupling agents are included, the total amount thereof preferably falls within the above range.

<<Surfactant>>
The coloring composition of the present invention can contain a surfactant. As the surfactant, various surfactants such as fluorine-based surfactants, nonionic surfactants, cationic surfactants, anionic surfactants and silicone surfactants can be used. The surfactant is preferably a silicone-based surfactant or a fluorine-based surfactant. For surfactants, reference can be made to surfactants described in paragraphs 0238-0245 of WO2015/166779, the contents of which are incorporated herein.

As the fluorine-based surfactant, JP 2014-041318 Paragraph Nos. 0060 to 0064 (corresponding International Publication No. 2014/017669 Paragraph Nos. 0060 to 0064) surfactants described in, JP 2011- Examples include surfactants described in paragraphs 0117 to 0132 of JP-A-132503 and surfactants described in JP-A-2020-008634, the contents of which are incorporated herein. Commercially available fluorosurfactants include Megafac F-171, F-172, F-173, F-176, F-177, F-141, F-142, F-143, and F-144. , F-437, F-475, F-477, F-479, F-482, F-554, F-555-A, F-556, F-557, F-558, F-559, F-560 , F-561, F-565, F-563, F-568, F-575, F-780, EXP, MFS-330, R-01, R-40, R-40-LM, R-41, R -41-LM, RS-43, R-43, TF-1956, RS-90, R-94, RS-72-K, DS-21 (manufactured by DIC Corporation), Florard FC430, FC431, FC171 (above, manufactured by Sumitomo 3M Co., Ltd.), Surflon S-382, SC-101, SC-103, SC-104, SC-105, SC-1068, SC-381, SC-383, S-393, KH- 40 (manufactured by AGC), PolyFox PF636, PF656, PF6320, PF6520, PF7002 (manufactured by OMNOVA), Futergent 208G, 215M, 245F, 601AD, 601ADH2, 602A, 610FM, 710FL, 710FM, 710 FS , FTX-218 (manufactured by NEOS Corporation) and the like.

The fluorosurfactant has a molecular structure with a functional group containing a fluorine atom, and an acrylic compound in which the functional group containing a fluorine atom is cleaved and the fluorine atom volatilizes when heat is applied is also suitable. Available. Examples of such fluorine-based surfactants include Megafac DS series manufactured by DIC Corporation (Chemical Daily (February 22, 2016), Nikkei Sangyo Shimbun (February 23, 2016)), for example, Mega Fac DS-21.

It is also preferable to use a polymer of a fluorine atom-containing vinyl ether compound having a fluorinated alkyl group or a fluorinated alkylene ether group and a hydrophilic vinyl ether compound as the fluorosurfactant. Such fluorosurfactants include fluorosurfactants described in JP-A-2016-216602, the contents of which are incorporated herein.

A block polymer can also be used as the fluorosurfactant. The fluorosurfactant has a repeating unit derived from a (meth)acrylate compound having a fluorine atom and 2 or more (preferably 5 or more) alkyleneoxy groups (preferably ethyleneoxy groups and propyleneoxy groups) (meta) A fluorine-containing polymer compound containing a repeating unit derived from an acrylate compound can also be preferably used. In addition, the fluorine-containing surfactants described in paragraphs 0016 to 0037 of JP-A-2010-032698 and the following compounds are also exemplified as fluorine-based surfactants used in the present invention.
The weight average molecular weight of the above compound is preferably 3000-50000, for example 14000. In the above compounds, % indicating the ratio of repeating units is mol%.

A fluoropolymer having an ethylenically unsaturated bond-containing group in a side chain can also be used as the fluorosurfactant. Specific examples include compounds described in paragraph numbers 0050 to 0090 and paragraph numbers 0289 to 0295 of JP-A-2010-164965, MEGAFACE RS-101, RS-102 and RS-718K manufactured by DIC Corporation, and RS-72-K. Further, as the fluorosurfactant, compounds described in paragraphs 0015 to 0158 of JP-A-2015-117327 can also be used.

It is also preferable from the viewpoint of environmental regulations to use the surfactant described in International Publication No. 2020/084854 as a substitute for the surfactant having a perfluoroalkyl group with 6 or more carbon atoms.

It is also preferable to use a fluorine-containing imide salt compound represented by formula (fi-1) as a surfactant.
In the formula (fi-1), m represents 1 or 2, n represents an integer of 1 to 4, a represents 1 or 2, X ^{a +} is a valent metal ion, primary ammonium ion, Represents secondary ammonium ion, tertiary ammonium ion, quaternary ammonium ion or _NH4 ⁺ .

Nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane and their ethoxylates and propoxylates (e.g., glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, Polyoxyethylene oleyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether, polyethylene glycol dilaurate, polyethylene glycol distearate, sorbitan fatty acid ester, Pluronic L10, L31, L61, L62, 10R5, 17R2, 25R2 (BASF company), Tetronic 304, 701, 704, 901, 904, 150R1 (manufactured by BASF), Solsperse 20000 (manufactured by Nippon Lubrizol Co., Ltd.), NCW-101, NCW-1001, NCW-1002 (Fujifilm Wa Kojunyaku Co., Ltd.), Pionin D-6112, D-6112-W, D-6315 (Takemoto Oil Co., Ltd.), Olfine E1010, Surfynol 104, 400, 440 (Nissin Chemical Industry Co., Ltd.) ) and the like.

Silicone surfactants include DOWSIL SH8400, SH8400 FLUID, FZ-2122, 67 Additive, 74 Additive, M Additive, SF 8419 OIL (manufactured by Dow Toray Industries, Inc.), TSF-4300, TSF-4445, TSF-4460, TSF-4452 (manufactured by Momentive Performance Materials), KP-341, KF-6000, KF-6001, KF-6002, KF-6003 (manufactured by Shin-Etsu Chemical Co., Ltd.) , BYK-307, BYK-322, BYK-323, BYK-330, BYK-333, BYK-3760, BYK-UV3510 (manufactured by BYK-Chemie) and the like.

A compound having the following structure can also be used as the silicone-based surfactant.

The content of the surfactant in the total solid content of the coloring composition is preferably 0.001% by mass to 5.0% by mass, more preferably 0.005% by mass to 3.0% by mass. The coloring composition of the present invention may contain only one surfactant, or may contain two or more surfactants. When two or more surfactants are included, the total amount thereof is preferably within the above range.

<<Antioxidant>>
The coloring composition of the present invention can contain an antioxidant. Antioxidants include phenol compounds, phosphite ester compounds, thioether compounds and the like. Any phenolic compound known as a phenolic antioxidant can be used as the phenolic compound. Preferred phenolic compounds include hindered phenolic compounds. A compound having a substituent at a site adjacent to the phenolic hydroxy group (ortho position) is preferred. As the aforementioned substituent, a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferred. The antioxidant is also preferably a compound having a phenol group and a phosphite ester group in the same molecule. Phosphorus-based antioxidants can also be suitably used as antioxidants. As a phosphorus antioxidant, tris[2-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6 -yl]oxy]ethyl]amine, tris[2-[(4,6,9,11-tetra-tert-butyldibenzo[d,f][1,3,2]dioxaphosphepin-2-yl ) oxy]ethyl]amine, ethyl bis(2,4-di-tert-butyl-6-methylphenyl) phosphite, and the like. Examples of commercially available antioxidants include Adekastab AO-20, Adekastab AO-30, Adekastab AO-40, Adekastab AO-50, Adekastab AO-50F, Adekastab AO-60, Adekastab AO-60G, Adekastab AO-80. , ADEKA STAB AO-330 (manufactured by ADEKA Corporation) and the like. In addition, antioxidants are compounds described in paragraph numbers 0023 to 0048 of Japanese Patent No. 6268967, compounds described in WO 2017/006600, compounds described in WO 2017/164024, Compounds described in Korean Patent Publication No. 10-2019-0059371 can also be used. The content of the antioxidant in the total solid content of the coloring composition is preferably 0.01 to 20% by mass, more preferably 0.3 to 15% by mass. The coloring composition of the present invention may contain only one antioxidant, or may contain two or more antioxidants. When two or more kinds of antioxidants are included, it is preferable that the total amount thereof is within the above range.

<<Other Ingredients>>
The coloring composition of the present invention may optionally contain sensitizers, curing accelerators, fillers, thermosetting accelerators, plasticizers and other auxiliaries (e.g., conductive particles, antifoaming agents, flame retardants, leveling agents, release accelerators, fragrances, surface tension modifiers, chain transfer agents, etc.). Properties such as film physical properties can be adjusted by appropriately containing these components. These components are, for example, described in JP 2012-003225, paragraph number 0183 and later (corresponding US Patent Application Publication No. 2013/0034812, paragraph number 0237), JP 2008-250074 paragraph The descriptions of numbers 0101 to 0104, 0107 to 0109, etc. can be referred to, and the contents thereof are incorporated herein. Moreover, the coloring composition of this invention may contain a latent antioxidant as needed. The latent antioxidant is a compound in which the site functioning as an antioxidant is protected with a protecting group, and is heated at 100 to 250°C, or heated at 80 to 200°C in the presence of an acid/base catalyst. A compound that functions as an antioxidant by removing the protective group by the reaction is exemplified. Examples of latent antioxidants include compounds described in International Publication No. 2014/021023, International Publication No. 2017/030005, and JP-A-2017-008219. Commercially available latent antioxidants include ADEKA Arkles GPA-5001 (manufactured by ADEKA Co., Ltd.).

The coloring composition of the present invention may contain a metal oxide in order to adjust the refractive index of the resulting film. Examples of metal oxides include TiO ₂ , ZrO ₂ , Al ₂ O ₃ and SiO ₂ . The primary particle size of the metal oxide is preferably 1 to 100 nm, more preferably 3 to 70 nm, even more preferably 5 to 50 nm. Metal oxides may have a core-shell structure. Moreover, in this case, the core portion may be hollow.

The coloring composition of the present invention may contain a light resistance improver. As the light resistance improver, compounds described in paragraph numbers 0036 to 0037 of JP-A-2017-198787, compounds described in paragraph numbers 0029-0034 of JP-A-2017-146350, JP-A-2017-129774 Compounds described in paragraph numbers 0036 to 0037, 0049 to 0052 of JP 2017-129674 JP 2017-129674 paragraph numbers 0031 to 0034, 0058 to 0059 compounds described in JP 2017-122803 paragraph numbers 0036 to 0037 , compounds described in 0051 to 0054, compounds described in paragraph numbers 0025 to 0039 of WO 2017/164127, compounds described in paragraph numbers 0034 to 0047 of JP 2017-186546, JP 2015-025116 Compounds described in paragraph numbers 0019 to 0041 of JP-A-2012-145604, compounds described in paragraph numbers 0101-0125 of JP-A-2012-103475, compounds described in paragraph numbers 0018-0021 of JP-A-2012-103475, in particular Compounds described in paragraphs 0015 to 0018 of JP 2011-257591, compounds described in paragraphs 0017 to 0021 of JP 2011-191483, described in paragraphs 0108 to 0116 of JP 2011-145668 and compounds described in paragraph numbers 0103 to 0153 of JP-A-2011-253174.

The coloring composition of the present invention preferably does not substantially contain terephthalic acid ester. Here, "substantially free" means that the content of terephthalic acid ester is 1000 mass ppb or less in the total amount of the coloring composition, and more preferably 100 mass ppb or less, Zero is particularly preferred.

From the perspective of environmental regulations, the use of perfluoroalkylsulfonic acid and its salts, and perfluoroalkylcarboxylic acid and its salts may be regulated. In the coloring composition of the present invention, when the content of the above compounds is reduced, perfluoroalkylsulfonic acid (especially perfluoroalkylsulfonic acid having 6 to 8 carbon atoms in the perfluoroalkyl group) and salts thereof, and per The content of fluoroalkylcarboxylic acid (especially perfluoroalkylcarboxylic acid having 6 to 8 carbon atoms in the perfluoroalkyl group) and its salt is 0.01ppb to 1,000ppb with respect to the total solid content of the coloring composition. is preferably in the range of , more preferably in the range of 0.05 ppb to 500 ppb, even more preferably in the range of 0.1 ppb to 300 ppb. The coloring composition of the present invention may be substantially free of perfluoroalkylsulfonic acid and its salts and perfluoroalkylcarboxylic acid and its salts. For example, by using a compound that can substitute for perfluoroalkylsulfonic acid and its salt, and a compound that can substitute for perfluoroalkylcarboxylic acid and its salt, perfluoroalkylsulfonic acid and its salt, and perfluoroalkylcarboxylic acid and salts thereof may be selected. Compounds that can substitute for the regulated compounds include, for example, compounds excluded from the regulation due to the difference in the number of carbon atoms in the perfluoroalkyl group. However, the above contents do not prevent the use of perfluoroalkylsulfonic acid and its salts, and perfluoroalkylcarboxylic acid and its salts. The coloring composition of the present invention may contain perfluoroalkylsulfonic acid and its salts and perfluoroalkylcarboxylic acid and its salts within the maximum allowable range.

The water content of the coloring composition of the present invention is usually 3% by mass or less, preferably 0.01 to 1.5% by mass, more preferably 0.1 to 1.0% by mass. The water content can be measured by the Karl Fischer method.

The coloring composition of the present invention can be used by adjusting the viscosity for the purpose of adjusting the film surface state (flatness, etc.) and adjusting the film thickness. The viscosity value can be appropriately selected as necessary, and is preferably, for example, 0.3 mPa·s to 50 mPa·s, more preferably 0.5 mPa·s to 20 mPa·s at 25°C. As a method for measuring the viscosity, for example, a cone-plate type viscometer can be used, and the viscosity can be measured in a state where the temperature is adjusted to 25°C.

<<Container>>
The storage container for the coloring composition is not particularly limited, and known storage containers can be used. In addition, as a storage container, a multi-layer bottle whose inner wall is composed of 6 types and 6 layers of resins and a bottle with a 7-layer structure of 6 types of resins for the purpose of suppressing contamination of raw materials and coloring compositions. It is also preferred to use Examples of such a container include the container described in JP-A-2015-123351. In addition, the inner wall of the container is preferably made of glass or stainless steel for the purpose of preventing metal elution from the inner wall of the container, enhancing the stability of the coloring composition over time, and suppressing deterioration of components.

<Method for preparing coloring composition>
The coloring composition of the present invention can be prepared by mixing the aforementioned ingredients. In preparing the coloring composition, all components may be simultaneously dissolved and / or dispersed in a solvent to prepare a coloring composition, and if necessary, each component may be appropriately mixed as two or more solutions or dispersions. , these may be mixed at the time of use (at the time of coating) to prepare a colored composition.

In addition, it is preferable to include a process of dispersing the pigment when preparing the coloring composition. In the process of dispersing pigments, mechanical forces used for dispersing pigments include compression, squeezing, impact, shearing, cavitation, and the like. Specific examples of these processes include bead mills, sand mills, roll mills, ball mills, paint shakers, microfluidizers, high speed impellers, sand grinders, flow jet mixers, high pressure wet atomization, ultrasonic dispersion, and the like. In pulverizing the pigment in a sand mill (bead mill), it is preferable to use beads with a small diameter or to increase the filling rate of the beads so as to increase the pulverization efficiency. Moreover, it is preferable to remove coarse particles by filtration, centrifugation, or the like after the pulverization treatment. In addition, the process and dispersing machine for dispersing pigments are described in ``Dispersion Technology Encyclopedia, Information Organization Co., Ltd., July 15, 2005'' and ``Dispersion Technology Centered on Suspension (Solid/Liquid Dispersion System) and Industrial Applications'' The actual practice of comprehensive materials, published by Management Development Center Publishing Department, October 10, 1978", the process and dispersing machine described in paragraph number 0022 of JP-A-2015-157893 can be suitably used. In the process of dispersing the pigment, the particles may be made finer in the salt milling step. Materials, equipment, processing conditions, etc. used in the salt milling step can be referred to, for example, Japanese Patent Application Laid-Open Nos. 2015-194521 and 2012-046629. Bead materials used for dispersion include zirconia, agate, quartz, titania, tungsten carbide, silicon nitride, alumina, stainless steel and glass. An inorganic compound having a Mohs hardness of 2 or more can also be used for the beads. The composition may contain 1 to 10000 ppm of the beads.

In preparing the colored composition, it is preferable to filter the colored composition with a filter for the purpose of removing foreign substances and reducing defects. As the filter, any filter that has been conventionally used for filtration or the like can be used without particular limitation. For example, polytetrafluoroethylene (PTFE), fluororesins such as polyvinylidene fluoride (PVDF), polyamide resins such as nylon (eg nylon-6, nylon-6,6), polyethylene, polyolefin resins such as polypropylene (PP) ( (including high-density, ultra-high-molecular-weight polyolefin resin). Among these materials, polypropylene (including high density polypropylene) and nylon are preferred.

The pore size of the filter is preferably 0.01-7.0 μm, more preferably 0.01-3.0 μm, and even more preferably 0.05-0.5 μm. If the pore diameter of the filter is within the above range, fine foreign matter can be removed more reliably. For the pore size value of the filter, reference can be made to the filter manufacturer's nominal value. Various filters provided by Nippon Pall Co., Ltd. (DFA4201NXEY, DFA4201NAEY, DFA4201J006P, etc.), Advantech Toyo Co., Ltd., Nihon Entegris Co., Ltd. (former Japan Microlith Co., Ltd.), Kitz Micro Filter Co., Ltd., etc. can be used as filters. .

It is also preferable to use a fiber-like filter medium as the filter. Examples of fiber-like filter media include polypropylene fiber, nylon fiber, and glass fiber. Commercially available products include SBP type series (SBP008, etc.), TPR type series (TPR002, TPR005, etc.), and SHPX type series (SHPX003, etc.) manufactured by Roki Techno. When using filters, different filters (eg, a first filter and a second filter, etc.) may be combined. At that time, filtration with each filter may be performed only once, or may be performed twice or more. Also, filters with different pore sizes within the range described above may be combined. Alternatively, the filtration with the first filter may be performed only on the dispersion liquid, and after mixing other components, the filtration with the second filter may be performed. In addition, the filter can be appropriately selected according to the hydrophilicity/hydrophobicity of the coloring composition.

<Membrane>
The film of the present invention is a film obtained from the colored composition of the present invention described above. The film of the present invention can be used in optical filters such as color filters and infrared transmission filters.

The film thickness of the film of the present invention can be appropriately adjusted according to the purpose. For example, the film thickness is preferably 20 μm or less, more preferably 10 μm or less, even more preferably 5 μm or less. The lower limit of the film thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more.

When the film of the present invention is used as a color filter, the film of the present invention preferably has a hue of green, red, blue, cyan, magenta or yellow, and more preferably has a hue of green, red or yellow. preferable. Moreover, the film of the present invention can be preferably used as a colored pixel of a color filter. Examples of colored pixels include red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, and yellow pixels. Red pixels, green pixels, and yellow pixels are preferred, and red pixels or green pixels are preferred. is more preferable, and green pixels are even more preferable.

In the film of the present invention, the wavelength at which the light transmittance is 50% is preferably in the wavelength range of 470 to 520 nm, more preferably in the wavelength range of 475 to 520 nm, and more preferably in the wavelength range of 480 to 520 nm. It is even more preferred to be present in the wavelength range. In particular, it is preferable that the wavelengths at which the light transmittance is 50% exist in both the wavelength range of 470 to 520 nm and the wavelength range of 575 to 625 nm. In this embodiment, the wavelength on the short wavelength side at which the light transmittance is 50% preferably exists in the wavelength range of 475 to 520 nm, more preferably in the wavelength range of 480 to 520 nm. Further, the wavelength on the long wavelength side at which the light transmittance is 50% preferably exists in the wavelength range of 580 to 620 nm, more preferably in the wavelength range of 585 to 615 nm. A film having such spectral characteristics is preferably used as a green pixel.

When the film of the present invention is used as an infrared transmission filter, the film of the present invention preferably has, for example, any one of the following spectral characteristics (1) to (4).
(1): The maximum value of the light transmittance in the thickness direction of the film in the wavelength range of 400 to 640 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the light transmission in the thickness direction of the film. The minimum value of the ratio in the wavelength range of 800 to 1300 nm is 70% or more (preferably 75% or more, more preferably 80% or more). A film having such spectral characteristics can block light in the wavelength range of 400 to 640 nm and transmit light in the wavelength range of 700 nm or more.
(2): The maximum value of the light transmittance in the thickness direction of the film in the wavelength range of 400 to 750 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the light transmission in the thickness direction of the film. A film having a minimum modulus of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 900 to 1300 nm. A film having such spectral characteristics can block light in the wavelength range of 400 to 750 nm and transmit light in the wavelength range of 850 nm or more.
(3): The maximum value of the light transmittance in the thickness direction of the film in the wavelength range of 400 to 830 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the light transmission in the thickness direction of the film. A film having a minimum modulus of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 1000 to 1300 nm. A film having such spectral characteristics can block light in the wavelength range of 400 to 830 nm and transmit light in the wavelength range of 940 nm or more.
(4): The maximum value of the light transmittance in the thickness direction of the film in the wavelength range of 400 to 950 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and light transmission in the film thickness direction. A film having a minimum modulus of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 1100 to 1300 nm. A film having such spectral characteristics can block light in the wavelength range of 400 to 950 nm and transmit light in the wavelength range of 1040 nm or more.

<Method for producing membrane>
Next, the method for producing the film of the present invention will be described. The film of the present invention can be produced through the step of applying the coloring composition of the present invention. Preferably, the film manufacturing method further includes a step of forming a pattern (pixels). A method for forming the pattern (pixels) includes a photolithography method and a dry etching method, and the photolithography method is preferable.

Pattern formation by photolithography includes the steps of forming a colored composition layer on a support using the colored composition of the present invention, a step of patternwise exposing the colored composition layer, and a step of exposing the colored composition layer. forming a pattern (pixels) by developing and removing the exposed portion. If necessary, a step of baking the coloring composition layer (pre-baking step) and a step of baking the developed pattern (pixels) (post-baking step) may be provided.

In the step of forming the colored composition layer, the colored composition layer of the present invention is used to form the colored composition layer on the support. The support is not particularly limited and can be appropriately selected depending on the application. Examples thereof include glass substrates and silicon substrates, and silicon substrates are preferred. Also, a charge-coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a transparent conductive film, or the like may be formed on the silicon substrate. In some cases, the silicon substrate is formed with a black matrix that isolates each pixel. In addition, the silicon substrate may be provided with an underlying layer for improving adhesion with the upper layer, preventing diffusion of substances, or flattening the substrate surface. The surface contact angle of the underlayer is preferably 20 to 70° when measured with diiodomethane. Further, it is preferably 30 to 80° when measured with water.

A known method can be used as a method for applying the coloring composition. For example, dropping method (drop cast); slit coating method; spray method; roll coating method; spin coating method (spin coating); methods described in publications); inkjet (e.g., on-demand method, piezo method, thermal method), ejection system printing such as nozzle jet, flexographic printing, screen printing, gravure printing, reverse offset printing, metal mask printing, etc. Examples include various printing methods; transfer methods using molds and the like; nanoimprinting methods and the like. The application method for inkjet is not particularly limited. 133 page), and methods described in JP-A-2003-262716, JP-A-2003-185831, JP-A-2003-261827, JP-A-2012-126830, JP-A-2006-169325, etc. mentioned. In addition, regarding the method of applying the coloring composition, the descriptions of WO 2017/030174 and WO 2017/018419 can be referred to, and the contents thereof are incorporated herein.

The colored composition layer formed on the support may be dried (pre-baked). Pre-baking may not be performed when the film is manufactured by a low-temperature process. When pre-baking is performed, the pre-baking temperature is preferably 150° C. or lower, more preferably 120° C. or lower, and even more preferably 110° C. or lower. The lower limit can be, for example, 50° C. or higher, and can also be 80° C. or higher. The pre-bake time is preferably 10 to 300 seconds, more preferably 40 to 250 seconds, even more preferably 80 to 220 seconds. Pre-baking can be performed using a hot plate, an oven, or the like.

Next, the colored composition layer is exposed in a pattern (exposure step). For example, the colored composition layer can be exposed in a pattern by exposing through a mask having a predetermined mask pattern using a stepper exposure machine, a scanner exposure machine, or the like. Thereby, the exposed portion can be cured.

Radiation (light) that can be used for exposure includes g-line, i-line, and the like. Light with a wavelength of 300 nm or less (preferably light with a wavelength of 180 to 300 nm) can also be used. Light having a wavelength of 300 nm or less includes KrF rays (wavelength: 248 nm), ArF rays (wavelength: 193 nm), etc., and KrF rays (wavelength: 248 nm) are preferable. A long-wave light source of 300 nm or more can also be used.

In addition, when exposing, the light may be continuously irradiated and exposed, or may be irradiated and exposed in pulses (pulse exposure). Note that the pulse exposure is an exposure method in which light irradiation and pause are repeated in a cycle of short time (for example, less than millisecond level).

The dose (exposure dose) is, for example, preferably 0.03 to 2.5 J/cm ² , more preferably 0.05 to 1.0 J/cm ² . The oxygen concentration at the time of exposure can be selected as appropriate. The exposure may be in an oxygen-free atmosphere, or in a high-oxygen atmosphere with an oxygen concentration exceeding 21% by volume (for example, 22% by volume, 30% by volume, or 50% by volume). In addition, the exposure illuminance can be set as appropriate, and is usually selected from the range of 1000 W/m ² to 100000 W/m ² (eg, 5000 W/m ² , 15000 W/m ² or 35000 W/m ² ). can be done. The oxygen concentration and exposure illuminance may be appropriately combined. For example, the illuminance may be 10000 W/m ² at an oxygen concentration of 10% by volume and 20000 W/m ² at an oxygen concentration of 35% by volume.

Next, the unexposed areas of the colored composition layer are removed by development to form a pattern (pixels). The development and removal of the unexposed portion of the colored composition layer can be performed using a developer. As a result, the unexposed portion of the colored composition layer in the exposure step is eluted into the developer, leaving only the photocured portion. The temperature of the developer is preferably 20 to 30° C., for example. The development time is preferably 20 to 180 seconds. Further, in order to improve the residue removability, the step of shaking off the developer every 60 seconds and then supplying new developer may be repeated several times.

The developer includes an organic solvent, an alkaline developer, etc., and an alkaline developer is preferably used. As the alkaline developer, an alkaline aqueous solution (alkali developer) obtained by diluting an alkaline agent with pure water is preferable. Examples of alkaline agents include ammonia, ethylamine, diethylamine, dimethylethanolamine, diglycolamine, diethanolamine, hydroxylamine, ethylenediamine, tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, and tetrabutylammonium hydroxide. , ethyltrimethylammonium hydroxide, benzyltrimethylammonium hydroxide, dimethylbis(2-hydroxyethyl)ammonium hydroxide, choline, pyrrole, piperidine, 1,8-diazabicyclo-[5.4.0]-7-undecene, etc. Examples include organic alkaline compounds and inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, sodium silicate and sodium metasilicate. A compound having a large molecular weight is preferable for the alkaline agent from the standpoint of environment and safety. The concentration of the alkaline agent in the alkaline aqueous solution is preferably 0.001 to 10% by mass, more preferably 0.01 to 1% by mass. Moreover, the developer may further contain a surfactant. From the viewpoint of transportation and storage convenience, the developer may be produced once as a concentrated solution and then diluted to the required concentration when used. Although the dilution ratio is not particularly limited, it can be set, for example, in the range of 1.5 to 100 times. It is also preferable to wash (rinse) with pure water after development. Rinsing is preferably carried out by supplying a rinsing solution to the developed colored composition layer while rotating the support on which the developed colored composition layer is formed. It is also preferable to move the nozzle for discharging the rinsing liquid from the central portion of the support to the peripheral portion of the support. At this time, when moving the nozzle from the center of the support to the periphery, the moving speed of the nozzle may be gradually decreased. By performing rinsing in this manner, in-plane variations in rinsing can be suppressed. A similar effect can be obtained by gradually decreasing the rotation speed of the support while moving the nozzle from the center of the support to the periphery.

After development, it is preferable to perform additional exposure processing and heat processing (post-baking) after drying. Additional exposure processing and post-baking are post-development curing treatments for complete curing. The heating temperature in post-baking is, for example, preferably 100 to 240.degree. C., more preferably 200 to 240.degree. Post-baking can be performed continuously or batchwise using a heating means such as a hot plate, a convection oven (hot air circulating dryer), or a high-frequency heater so that the developed film satisfies the above conditions. . When the additional exposure process is performed, the light used for exposure preferably has a wavelength of 400 nm or less. Further, the additional exposure process may be performed by the method described in Korean Patent Publication No. 10-2017-0122130.

Pattern formation by a dry etching method is a step of forming a colored composition layer on a support using the colored composition of the present invention, and curing the entire colored composition layer to form a cured product layer; a step of forming a photoresist layer on the cured layer; a step of patternwise exposing the photoresist layer and then developing it to form a resist pattern; and etching the cured layer using the resist pattern as a mask. and dry etching using a gas. In forming the photoresist layer, it is preferable to further perform a pre-baking process. In particular, as the formation process of the photoresist layer, a mode in which heat treatment after exposure and heat treatment (post-baking treatment) after development are performed is desirable. Regarding pattern formation by a dry etching method, descriptions in paragraphs 0010 to 0067 of JP-A-2013-064993 can be referred to, and the contents thereof are incorporated herein.

<Optical filter>
The optical filter of the present invention has the film of the present invention as described above. Types of optical filters include color filters and infrared transmission filters, and color filters are preferred. A color filter preferably has the film of the present invention as its colored pixels.

In the optical filter, the film thickness of the film of the present invention can be appropriately adjusted according to the purpose. The film thickness is preferably 20 μm or less, more preferably 10 μm or less, even more preferably 5 μm or less. The lower limit of the film thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more.

The width of pixels included in the optical filter is preferably 0.4 to 10.0 μm. The lower limit is preferably 0.4 μm or more, more preferably 0.5 μm or more, and even more preferably 0.6 μm or more. The upper limit is preferably 5.0 μm or less, more preferably 2.0 μm or less, even more preferably 1.0 μm or less, and even more preferably 0.8 μm or less. Also, the Young's modulus of the pixel is preferably 0.5 to 20 GPa, more preferably 2.5 to 15 GPa.

Each pixel included in the optical filter preferably has high flatness. Specifically, the pixel surface roughness Ra is preferably 100 nm or less, more preferably 40 nm or less, and even more preferably 15 nm or less. Although the lower limit is not specified, it is preferably 0.1 nm or more, for example. The surface roughness of a pixel can be measured using, for example, AFM (Atomic Force Microscope) Dimension 3100 manufactured by Veeco. Also, the contact angle of water on the pixel can be appropriately set to a preferable value, but is typically in the range of 50 to 110°. The contact angle can be measured using, for example, a contact angle meter CV-DT-A type (manufactured by Kyowa Interface Science Co., Ltd.). Moreover, it is preferable that the volume resistance value of the pixel is high. Specifically, the volume resistance value of the pixel is preferably 10 ⁹ Ω·cm or more, more preferably 10 ¹¹ Ω·cm or more. Although the upper limit is not specified, it is preferably 10 ¹⁴ Ω·cm or less, for example. The volume resistance value of the pixel can be measured using an ultra-high resistance meter 5410 (manufactured by Advantest).

In the optical filter, a protective layer may be provided on the surface of the film of the present invention. By providing the protective layer, it is possible to impart various functions such as blocking oxygen, reducing reflection, making the film hydrophilic and hydrophobic, and blocking light of a specific wavelength (ultraviolet rays, near-infrared rays, etc.). The thickness of the protective layer is preferably 0.01-10 μm, more preferably 0.1-5 μm. Examples of the method of forming the protective layer include a method of applying a protective layer-forming composition, a chemical vapor deposition method, and a method of adhering a molded resin with an adhesive. Components constituting the protective layer include (meth)acrylic resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, and polyimides. Resins, polyamideimide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, polyol resins, polyvinylidene chloride resins, melamine resins, urethane resins, aramid resins, polyamide resins, alkyd resins, epoxy resins, modified silicone resins, fluorine Resins, polyacrylonitrile resins, cellulose resins, Si, C, W, Al ₂ O ₃ , Mo, SiO ₂ , Si ₂ N ₄ and the like, and two or more of these components may be contained. For example, in the case of a protective layer intended to block oxygen, the protective layer preferably contains a polyol resin, SiO ₂ and Si ₂ N ₄ . In the case of a protective layer intended to reduce reflection, the protective layer preferably contains a (meth)acrylic resin and a fluororesin.

If necessary, the protective layer contains organic/inorganic fine particles, absorbers for light of specific wavelengths (e.g., ultraviolet rays, near-infrared rays, etc.), refractive index modifiers, antioxidants, adhesion agents, additives such as surfactants. may contain. Examples of organic/inorganic fine particles include polymeric fine particles (eg, silicone resin fine particles, polystyrene fine particles, melamine resin fine particles), titanium oxide, zinc oxide, zirconium oxide, indium oxide, aluminum oxide, titanium nitride, and titanium oxynitride. , magnesium fluoride, hollow silica, silica, calcium carbonate, barium sulfate, and the like. A known absorber can be used as the absorber for light of a specific wavelength. The content of these additives can be appropriately adjusted, but is preferably 0.1 to 70% by mass, more preferably 1 to 60% by mass, based on the total mass of the protective layer.

Further, as the protective layer, the protective layers described in paragraphs 0073 to 0092 of JP-A-2017-151176 can also be used.

The optical filter may have a structure in which each pixel is embedded in a space partitioned by partition walls, for example, in a grid pattern.

<Solid-state image sensor>
The solid-state imaging device of the present invention has the film of the present invention described above. The configuration of the solid-state imaging device is not particularly limited as long as it functions as a solid-state imaging device.

A plurality of photodiodes and transfer electrodes made of polysilicon or the like are provided on the substrate, forming the light-receiving area of a solid-state imaging device (CCD (charge-coupled device) image sensor, CMOS (complementary metal-oxide semiconductor) image sensor, etc.). and a device protective film made of silicon nitride or the like formed on the light shielding film so as to cover the entire surface of the light shielding film and the photodiode light receiving portion. and a color filter on the device protective film. Furthermore, a configuration having a condensing means (for example, a microlens or the like; the same shall apply hereinafter) on the device protective film and below the color filter (on the side close to the substrate), or a configuration having a condensing means on the color filter, etc. There may be. Moreover, the color filter may have a structure in which each color pixel is embedded in a space partitioned by partition walls, for example, in a grid pattern. In this case, the partition wall preferably has a lower refractive index than each color pixel. Examples of imaging devices having such a structure include devices described in JP-A-2012-227478, JP-A-2014-179577, and International Publication No. 2018/043654. Further, as disclosed in Japanese Patent Application Laid-Open No. 2019-211559, an ultraviolet absorption layer may be provided in the structure of the solid-state imaging device to improve light resistance. An imaging device equipped with the solid-state imaging device of the present invention can be used not only for digital cameras and electronic devices (mobile phones, etc.) having an imaging function, but also for vehicle-mounted cameras and monitoring cameras.

<Image display device>
The image display device of the present invention has the film of the present invention described above. Examples of image display devices include liquid crystal display devices and organic electroluminescence display devices. For a definition of an image display device and details of each image display device, see, for example, "Electronic Display Device (by Akio Sasaki, Industrial Research Institute, 1990)", "Display Device (by Junsho Ibuki, Sangyo Tosho ( Co., Ltd.) issued in 1989). Liquid crystal display devices are described, for example, in "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, published by Kogyo Choukai Co., Ltd., 1994)". There is no particular limitation on the liquid crystal display device to which the present invention can be applied.

The present invention will be described more specifically below with reference to examples. The materials, usage amounts, ratios, processing details, processing procedures, etc. shown in the following examples can be changed as appropriate without departing from the gist of the present invention. Accordingly, the scope of the present invention is not limited to the specific examples shown below. In the structural formulas shown below, Me represents a methyl group, Et represents an ethyl group, and Bu represents a butyl group.

<Production of dispersion liquid>
After mixing the materials shown in the table below, 230 parts by mass of zirconia beads with a diameter of 0.3 mm were added, and dispersion treatment was performed using a paint shaker for 5 hours, and the beads were separated by filtration to produce a dispersion liquid. . The figures representing the amounts given in the table below are parts by weight. In addition, in the following, for those described as "Yes" in the column of kneading and polishing treatment, a coloring agent subjected to kneading and polishing treatment by the following method was used. In addition, the viscosity increase rate of each dispersion over time is shown in the table below. The time-dependent thickening rate was measured by the following method.

(Conditions for kneading and polishing treatment)
5.3 parts by mass of a pigment, 74.7 parts by mass of a grinding agent, and 14 parts by mass of a binder were added to Laboplastomill (manufactured by Toyo Seiki Seisakusho Co., Ltd.), and the temperature of the kneaded material in the device was raised to 70°C. The mixture was kneaded for 2 hours while controlling the temperature so that As the pigment, the material described in the column of pigment described in the table below was used. Neutral anhydrous mirabilite E (average particle diameter (50% volume-based diameter (D50)) = 20 µm, manufactured by Mitajiri Kagaku) was used as a grinding agent. Diethylene glycol was used as a binder. The kneaded material after kneading and polishing was washed with 10 L of water at 24° C. to remove the grinding agent and the binder, and was treated in a heating oven at 80° C. for 24 hours.

(Method for measuring thickening rate over time)
The resulting dispersion was heated at a temperature of 45° C. for 7 days. The viscosity of the pigment dispersion was measured before and after heating, and the absolute value of the difference between the viscosity of the dispersion before heating and the viscosity of the dispersion after heating was calculated. The viscosity of the dispersion liquid was measured using a viscometer (TV-22 type viscometer, cone plate type, manufactured by Toki Sangyo Co., Ltd.). The viscosity of the dispersion liquid was measured by adjusting the temperature of the pigment dispersion liquid to 25°C. The rate of increase in viscosity over time was calculated from the following formula, and the rate of increase in viscosity over time was evaluated according to the following criteria.
Time-dependent viscosity increase =|viscosity of dispersion before heating−viscosity of dispersion after heating|/viscosity of dispersion before heating×100
A: The rate of thickening over time is less than 5% B: The rate of thickening over time is 5% or more and less than 15% C: The rate of thickening over time is 15% or more and less than 25% D: The rate of thickening over time is 25 % or more

The details of the materials indicated by the abbreviations in the table above are as follows.

(pigment, pigment derivative)
PG36: C.I. I. Pigment Green 36 (green pigment, phthalocyanine pigment)
PG58: C.I. I. Pigment Green 58 (green pigment, phthalocyanine pigment)
PG63: C.I. I. Pigment Green 63 (green pigment, phthalocyanine pigment)
G1: a compound having the following structure
PR122: C.I. I. Pigment Red 122 (red pigment, quinacridone pigment)
PR177: C.I. I. Pigment Red 177 (red pigment, anthraquinone pigment)
PR224: C.I. I. Pigment Red 224 (red pigment, perylene pigment)
PR254: C.I. I. Pigment Red 254 (red pigment, diketopyrrolopyrrole pigment)
PR264: C.I. I. Pigment Red 264 (red pigment, diketopyrrolopyrrole pigment)
PR272: C.I. I. Pigment Red 272 (red pigment, diketopyrrolopyrrole pigment)
PY129: C.I. I. Pigment Yellow 129 (yellow pigment, azomethine pigment)
PY138: C.I. I. Pigment Yellow 138 (yellow pigment, quinophthalone pigment)
PY185: C.I. I. Pigment Yellow 185 (yellow pigment, isoindoline pigment)
a-1: a compound having the following structure
A-1 to A-73: The metal atoms described in the table below have the first ligands described in the table below (the first ligand and the second ligand for structural example (A-4)) Compounds of structural examples (A-1) to (A-73) that are coordinated. Each compound was synthesized by the method described in French Patent Application Publication No. 2013609.

(dispersant)
D1: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 24,000)
D3: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 17,000)
D4: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 7000)
D5: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 16,000)
D6: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 10,000)
D7: Acrylic block copolymer (EB-1) described in paragraph number 0219 of Japanese Patent No. 6432077
D9: DISPERBYK-142 (manufactured by BYK Chemie)
D10: Resin having the following structure (numerical values attached to the main chain are molar ratios; weight average molecular weight: 6000)
D11: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 7,500)

(solvent)
S1: Propylene glycol monomethyl ether acetate (PGMEA)
S2: Cyclohexanone S3: Butyl acetate S4: Ethyl lactate (EL)
S5: propylene glycol monomethyl ether (PGME)
S6: cyclopentanone

(Polymerization inhibitor)
H1: p-methoxyphenol

<Production of coloring composition>
The materials shown in the table below were mixed, stirred, and then filtered through a nylon filter (manufactured by Nippon Pall Co., Ltd.) having a pore size of 0.45 μm to produce a colored composition.

The details of the materials indicated by the above abbreviations are as follows.

(dispersion liquid)
Dispersions G1-G102, Y1, R1-R6, g1: Dispersions G1-G102, Y1, R1-R6, g1 as described above

(binder)
D1: Resin described in dispersant D1 described above D2: Resin having the following structure (weight average molecular weight: 11,000, numerical values attached to the main chain are molar ratios.)
D3: The resin described in the above dispersant D3 D8: Resin having the following structure (weight average molecular weight: 11,000, numerical values attached to the main chain are molar ratios.)

(Polymerizable monomer)
M1: A mixture of compounds having the following structure (a mixture of a left compound (hexafunctional (meth)acrylate compound) and a right compound (pentafunctional (meth)acrylate compound) in a molar ratio of 7:3)
M2: a compound having the following structure
M3: a compound having the following structure
M4: succinic acid-modified dipentaerythritol hexaacrylate (acid value 67 mgKOH/g)
M5: a compound having the following structure
M6: a compound having the following structure

(Photoinitiator)
F1 to F6: compounds having the following structures

(Surfactant)
W1: A compound having the following structure (weight average molecular weight: 14,000, percentage of repeating units is mol%, fluorosurfactant)
W2: compound with the following structure (weight average molecular weight: 3000, silicone surfactant)

(Polymerization inhibitor)
H1: p-methoxyphenol

(Ultraviolet absorber)
UV1: compound of the following structure UV2: compound of the following structure

(Antioxidant)
I1: a compound having the following structure

(epoxy compound)
G1: EHPE3150 (manufactured by Daicel Corporation)

<Evaluation of heat resistant diffusivity>
On an 8-inch (203.2 mm) glass wafer with an undercoat layer, each coloring composition was applied by spin coating so that the film thickness after post-baking was 0.5 μm, and then a hot plate was applied. and heated at 100° C. for 2 minutes to obtain a colored composition layer.
Next, the colored composition layer was exposed to an i-line stepper exposure device (FPA-3000i5+, manufactured by Canon Inc.) at an exposure dose of 1000 mJ/cm ² through a 5.0 μm square dot pattern mask. exposed. Next, the glass wafer on which the colored composition layer after exposure is formed is placed on a horizontal rotating table of a spin shower developing machine (DW-30 type, manufactured by Chemitronics Co., Ltd.), and a developing solution (CD- 2000 (manufactured by FUJIFILM Electronic Materials Co., Ltd., 60% diluted solution) was used for puddle development at 23° C. for 60 seconds. After that, the glass wafer was fixed on a horizontal rotating table by a vacuum chuck method, and while rotating the glass wafer at a rotation speed of 50 rpm by a rotating device, deionized water was supplied in a shower form from an ejection nozzle from above the center of rotation for rinsing. and spray dried. Furthermore, a heat treatment (post-baking) was performed for 300 seconds using a hot plate at 200° C. to form pixels 1 .
Next, on the glass wafer on which the pixels 1 are formed, a coloring composition for heat diffusion resistance evaluation is used, and the pixels 2 are formed in the same manner as the pixels 1 in the missing portions of the pixels 1 on the glass wafer. did. For this pixel 2, the transmittance (spectroscopy 1) in the wavelength range of 400 nm to 700 nm was measured using a microscope system (LVmicro V, manufactured by Lambda Vision Co., Ltd.).
Thereafter, the glass wafer on which pixels 1 and 2 are formed is heated at 260° C. for 5 minutes using a hot plate in an air atmosphere, and then pixel 2 is examined using a microscopic system (LVmicro V, manufactured by Lambda Vision Co., Ltd.). was used to measure the transmittance (spectroscopy 2) in the wavelength range of 400 nm to 700 nm.
Using spectroscopy 1 and spectroscopy 2 of pixel 2, the maximum value of the amount of change in transmittance was obtained, and the thermal diffusion resistance was evaluated according to the following criteria. The transmittance measurement was performed 5 times for each sample, and the average value of the results of 3 times excluding the maximum and minimum values was adopted. Further, the maximum value of the amount of change in transmittance means the amount of change at the wavelength in which the amount of change in transmittance of the pixel 2 before and after heating is the largest in the wavelength range of 400 to 700 nm.
In addition, the blue coloring composition 1 shown below was used for the coloring composition for heat-resistant diffusivity evaluation.
-Evaluation criteria-
A: The maximum value of change in transmittance is less than 3%.
B: The maximum value of change in transmittance is 3% or more and less than 4%.
C: The maximum value of change in transmittance is 4% or more and less than 5%.
D: The maximum value of change in transmittance is 5% or more.

(Blue colored composition 1)
C. I. Pigment Blue 15:6 with 118.5 parts by weight of C.I. I. Pigment Violet 23 (29.6 parts by mass), Dispersant D12 (51.9 parts by mass) and Solvent S1 (800 parts by mass) were mixed to obtain a mixture. The resulting mixture was subjected to dispersion treatment using Ultra Apex Mill (trade name) manufactured by Kotobuki Kogyo Co., Ltd. as a circulating dispersing device (bead mill) to obtain Dispersion B1. The solid content of the obtained dispersion B1 was 20.0% by mass.
85.14 parts by mass of dispersion liquid B1, 0.05 parts by mass of binder D8, 0.90 parts by mass of photopolymerization initiator F3, 0.01 parts by mass of polymerization inhibitor H1, and surfactant W1 and 13.89 parts by mass of solvent S1 were mixed to prepare a blue colored composition 1.
The solvent S1, the binder D, the photopolymerization initiator F3, the polymerization inhibitor H1, and the surfactant W1 are the materials described above.
Dispersant D12: Resin having the following structure (the numerical value attached to the main chain is the molar ratio, and the numerical value attached to the side chain is the number of repeating units. Weight average molecular weight: 20,000)

As shown in the table above, all of the examples were superior to the comparative examples in the evaluation of thermal diffusion resistance.

Claims

A coloring composition containing a coloring agent, a resin, and a solvent,
A coloring composition in which the coloring agent comprises a compound A in which a compound represented by formula (1) is coordinated to a metal atom;
In formula (1), R 1 to R 7 each independently represent a hydrogen atom or a substituent, R 1 and R 2 may combine to form a ring, and R 3 to R 7 two adjacent groups may be combined to form a ring,
R 8 represents a hydrogen atom or a hydrocarbon group, R 8 and R 7 may combine to form a ring,
X 1 and X 2 each independently represent -OH, -NHR X1 or -SH, R X1 represents a hydrogen atom or a substituent,
when X 1 and X 2 are each independently —NHR X1 , X 1 and X 2 may be bonded;
L 1 represents a single bond or a divalent linking group.
The coloring composition according to claim 1, wherein the metal atom in the compound A is Cu, Zn, Ni, Al, Pd, Co, Mn or Fe.
The compound represented by the formula (1) is a compound represented by the formula (2), the coloring composition according to claim 1 or 2;
In formula (2), R 3 to R 7 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R 3 to R 7 may combine to form a ring,
R 8 represents a hydrogen atom or a hydrocarbon group, R 8 and R 7 may combine to form a ring,
X 1 and X 2 each independently represent -OH, -NHR X1 or -SH, R X1 represents a hydrogen atom or a substituent,
when X 1 and X 2 are each independently —NHR X1 , X 1 and X 2 may be bonded;
B 1 and C 1 each independently represent a cyclic structure.
B 1 in formula (2) represents a group represented by formula (B-1) or formula (B-2),
C 1 of formula (2) represents a group represented by formula (C-1) or formula (C-2), the coloring composition according to claim 3;
In formula (B-1), R B11 to R B14 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R B11 to R B14 may combine to form a ring. often,
X B11 represents =O, =NHR XB1 or =S, R XB1 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with X1 ;
In formula (B-2), R B21 to R B26 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R B21 to R B26 may combine to form a ring. often,
X B21 represents =O, =NHR XB2 or =S, R XB2 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with X1 ;
In formula (C-1), R C11 to R C14 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R C11 to R C14 may combine to form a ring. often,
*1 and *2 each represent a bond, and *1 is a bond with X2 ;
In formula (C-2), R C21 to R C24 each independently represent a hydrogen atom or a substituent, and two adjacent groups among R C21 to R C24 may combine to form a ring. often,
X C21 represents =O, =NHR XC1 or =S, R XC1 represents a hydrogen atom or a substituent,
*1 and *2 each represent a bond, and *1 is a bond with X2 .
The coloring composition according to claim 1 or 2, wherein the coloring agent contains at least one selected from the group consisting of a green coloring agent and a red coloring agent.
The coloring composition according to claim 1 or 2, further comprising a polymerizable compound and a photopolymerization initiator.
The coloring composition according to claim 1 or 2, which is for a color filter.
A film obtained from the colored composition according to claim 1 or 2.
An optical filter having the film according to claim 8.
A solid-state imaging device having the film according to claim 8.
An image display device having the film according to claim 8.