WO2021149596A1

WO2021149596A1 - Color composition, film, optical filter, solid-state imaging element, and image display device

Info

Publication number: WO2021149596A1
Application number: PCT/JP2021/001141
Authority: WO
Inventors: 拓也鶴田; 康晴白石
Original assignee: 富士フイルム株式会社
Priority date: 2020-01-21
Filing date: 2021-01-15
Publication date: 2021-07-29
Also published as: CN114846089A; JPWO2021149596A1

Abstract

Provided is a color composition containing a yellow colorant and a curable compound, the yellow colorant containing a colorant A wherein the ratio of moles of a structure represented by formula (1) to the total moles of the structure represented by formula (1), a structure represented by formula (2), and a structure represented by formula (3), is 0.50–0.99. Also provided are a film, an optical filter, a solid-state imaging element, and an image display device that use the color composition.

Description

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

The present invention relates to a coloring composition containing a yellow colorant. The present invention also relates to a film, an optical filter, a solid-state image sensor, and an image display device using the coloring composition.

In recent years, with the spread of digital cameras, camera-equipped mobile phones, etc., demand for solid-state image sensors 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 includes pixels of the three primary colors of red, green, and blue, and plays a role of decomposing transmitted light into the three primary colors.

The colored pixels of each color of the color filter are manufactured by using a coloring composition containing a coloring agent. For example, a coloring composition containing a yellow colorant is used. As the yellow colorant, a quinophthalone compound and the like are known (see Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2013-061622 Special Table 2004-502016 Gazette

Regarding films used for optical filters and the like, in recent years, further improvement in spectral characteristics and light resistance has been desired.

Further, in recent years, further thinning of the film used for optical filters and the like has been desired. In order to achieve thinning while maintaining the desired spectral characteristics, it is necessary to increase the concentration of the colorant in the coloring composition used for film formation. However, when the concentration of the colorant in the coloring composition is increased, the coloring agent and the like tend to aggregate in the coloring composition and the viscosity tends to increase with time. Further, in recent years, further improvement in storage stability of the coloring composition has been desired.

Therefore, an object of the present invention is to provide a coloring composition capable of forming a film having good storage stability and excellent light resistance. Another object of the present invention is to provide a film, an optical filter, a solid-state image sensor, and an image display device using the coloring composition.

As a result of diligent studies on a yellow colorant, the present inventor has found that by using a coloring composition containing a predetermined colorant described later as the yellow colorant, storage stability is good and discoloration due to light irradiation is suppressed. We have found that it is possible to form a film that has been formed, and have completed the present invention. Therefore, the present invention provides the following.
<1> A coloring composition containing a yellow colorant and a curable compound.
The yellow colorant is represented by the formula (1) with respect to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). Contains colorant A, which has a ratio of the number of moles of the structure to 0.50 to 0.99.
Coloring composition;

In the formula, R ¹ to R ⁶ independently represent a hydrogen atom or a substituent, X ¹ represents an atom or an atomic group constituting a ring, ^{and at least one of R 1} to R ⁶ and X ¹ is adjacent to each other. It may include a bond with the atom to be used.
<2> The colorant A is at least one selected from a compound having a structure represented by the above formula (1), a structure represented by the above formula (2), and a structure represented by the above formula (3). The coloring composition according to <1>, which comprises a compound having a seed structure.
<3> The colorant A includes a compound having a structure represented by the above formula (1) and a compound having a structure represented by the above formula (2) in <1> or <2>. The colored composition described.
<4> The structure represented by the above formula (1) is a structure represented by the following formula (1a).
The structure represented by the above formula (2) is a structure represented by the following formula (2a).
The structure represented by the above formula (3) is a structure represented by the following formula (3a).
The coloring composition according to any one of <1> to <3>;

In the formula, R ¹ to R ⁶ independently represent hydrogen atoms or substituents, and R ⁹ to R ¹² independently represent hydrogen atoms or substituents, respectively, and ^{two adjacent R 9} to R ¹² are adjacent to each other. The two groups may be bonded to each other to form a ring, and ^{at least one of R 1} to R ⁶ and R ⁹ to R ¹² may include a bond with an adjacent atom.
<5> The structure represented by the above formula (1) is a structure represented by the following formula (1b).
The structure represented by the above formula (2) is a structure represented by the following formula (2b).
The structure represented by the above formula (3) is a structure represented by the following formula (3b).
The coloring composition according to any one of <1> to <3>;

^Wherein, R 9 ^{~ R 16} are each independently a hydrogen atom or a ^substituent, two groups adjacent to each other among R 9 ^{~ R 16} may form a ^{ring, R} 9 ~ ^At least one of R 16 may include a bond with an adjacent atom.
<6> The coloring composition according to any one of <1> to <5>, further comprising at least one selected from a red colorant and a green colorant.
<7> The coloring composition according to any one of <1> to <6>, further containing an infrared absorber.
<8> The coloring composition according to any one of <1> to <7>, which is for a color filter or an infrared transmission filter.
<9> A film obtained from the coloring composition according to any one of <1> to <8>.
<10> An optical filter having the film according to <9>.
<11> A solid-state image sensor having the film according to <9>.
<12> An image display device having the film according to <9>.

According to the present invention, it is possible to provide a coloring composition capable of forming a film having good storage stability and excellent light resistance. Further, it is possible to provide a film, an optical filter, a solid-state image sensor, and an image display device using the coloring composition.

Hereinafter, the contents of the present invention will be described in detail.
In the present specification, "-" is used to mean that the numerical values described before and after it are included as the lower limit value and the upper limit value.
In the notation of a group (atomic group) in the present specification, the notation not describing substitution and non-substitution also includes a group having a substituent (atomic group) as well as a group having no substituent (atomic group). For example, the "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).
In the present specification, "exposure" includes not only exposure using light but also drawing using particle beams such as an electron beam and an ion beam, unless otherwise specified. Examples of the light used for exposure include the emission line spectrum of a mercury lamp, far ultraviolet rays typified by an excimer laser, extreme ultraviolet rays (EUV light), X-rays, active rays such as electron beams, or radiation.
As used herein, "(meth) acrylate" represents both acrylate and methacrylate, or either, and "(meth) acrylic" represents both acrylic and methacrylic, or either. ) Acryloyl "represents both acryloyl and / or methacryloyl.
In the present specification, Me in the structural formula represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group.
In the present specification, the weight average molecular weight and the number average molecular weight are polystyrene-equivalent values measured by a GPC (gel permeation chromatography) method.
In the present specification, the total solid content means the total mass of all the components of the composition excluding the solvent.
As used herein, the term pigment means a compound that is difficult to dissolve in a solvent.
In the present specification, the term "process" is included in this term not only as an independent process but also as long as the desired 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 yellow colorant and a curable compound.
The yellow colorant is represented by the formula (1) with respect to the total number of moles of the structure represented by the formula (1) described later, the structure represented by the formula (2) and the structure represented by the formula (3). It is characterized by containing a colorant A in which the ratio of the number of moles of the structure to be formed is 0.50 to 0.99.

According to the coloring composition of the present invention, by containing the yellow coloring agent containing the above-mentioned coloring agent A, it is possible to form a film having good storage stability and excellent light resistance. The detailed reason why such an effect is obtained is unknown, but the total mole of the structure represented by the formula (1), the structure represented by the formula (2), and the structure represented by the formula (3). Since the ratio of the number of moles of the structure represented by the formula (1) to the number is 0.99 or less, the crystallinity of the colorant A is lowered and the aggregation of the colorant in the coloring composition is suppressed. As a result, it is presumed that excellent storage stability was obtained. Further, the colorant A described above has a structure (1) with respect to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). Since the ratio of the number of moles of the structure represented by is 0.50 or more, it is presumed that the colorant A is likely to associate in the film. Therefore, it is presumed that an aggregate of the colorant A was easily formed in the film, and a film having excellent light resistance could be formed.

Further, the above-mentioned colorant A has a high yellow color value, and according to the coloring composition of the present invention, it is possible to form a film having excellent spectral characteristics.

The coloring composition of the present invention is preferably used as a coloring composition for a color filter or an infrared transmission filter, and more preferably a coloring composition for forming pixels of a color filter or coloring for forming an infrared transmission filter. Used as a composition. Further, the coloring composition of the present invention is preferably used as a coloring composition for a solid-state image sensor.

Hereinafter, each component used in the coloring composition of the present invention will be described.

<< Colorant >>
The coloring composition of the present invention contains a coloring agent. Examples of the colorant include a chromatic colorant such as a red colorant, a green colorant, a blue colorant, a yellow colorant, and a purple colorant, and a black colorant. In the present invention, the colorant may be a pigment or a dye. Pigments and dyes may be used in combination. Further, the pigment may be either an inorganic pigment or an organic pigment. Further, as the pigment, an inorganic pigment or a material in which a part of the organic-inorganic pigment is replaced with an organic chromophore can be used. Hue design can be facilitated by replacing inorganic pigments and organic-inorganic pigments with organic chromophores.

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 in 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 image 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 an arithmetic mean value of the primary particle size for the primary particles of 400 pigments. Further, the primary particles of the pigment refer to independent particles without agglomeration.

(Yellow colorant)
The coloring composition of the present invention contains a yellow colorant. In the coloring composition of the present invention, as the yellow colorant, the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3) is increased. Ratio of the number of moles of the structure represented by the formula (1) (= the number of moles of the structure represented by the formula (1) / the structure represented by the formula (1) and the structure represented by the formula (2) and the formula. The one containing the colorant A having a total number of moles with the structure represented by (3) of 0.50 to 0.99 is used. Hereinafter, the colorant A is also referred to as a specific yellow colorant. The number of moles of the structure of each formula contained in the specific yellow colorant can be detected by nuclear magnetic resonance (NMR).

In the formula, R ¹ to R ⁶ independently represent a hydrogen atom or a substituent, X ¹ represents an atom or an atomic group constituting a ring, ^{and at least one of R 1} to R ⁶ and X ¹ is adjacent to each other. It may include a bond with the atom to be used.

The ^{substituents represented by R 1} to R ⁶ include the group mentioned in the substituent T described later, the group represented by the following formula (T-1), the group represented by the following formula (T-2), and the following formula. Examples include the group represented by (T-3).

-L ^T1- R ^T101 ... Equation (T-1)
-L ^T1- R ^T102 ... Equation (T-2)
-L ^T1 -R ^T103 ··· formula (T-3)
^{Wherein, L T1} represents a single bond or a divalent linking ^{group, R T101} represents an acid ^{group, R T102} represents a basic ^{group, R T103} represents a polymerizable group.

Examples of the divalent linking group L ^T1 represents an alkylene group (preferably an alkylene group having 1 to 12 carbon atoms), an arylene group (preferably an arylene group having 6 to 20 carbon atoms), a heterocyclic group, -NH-, Examples thereof include -SO-, -SO _2- , -CO-, -O-, -COO-, OCO-, -S-, and groups composed of a combination of two or more of these.
^Examples of the acid group represented by RT101 include a carboxyl group, a sulfo group, a phosphoric acid group and salts thereof. The atoms or groups that make up 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, etc. Examples include phosphonium ions.
^{Examples of the basic group represented by RT102} include an amino group, a salt of an amino group and a salt of an ammonium group. Examples of the amino group include -NH ₂ , a dialkylamino group, an alkylarylamino group, a diarylamino group, a cyclic amino group and the like. Examples of the atom or atomic group constituting the salt include hydroxide ion, halogen ion, carboxylic acid ion, sulfonic acid ion, and phenoxide ion.
^{Examples of the polymerizable group represented by RT103} include an ethylenically unsaturated bond-containing group, a cyclic ether group, a methylol group, and an alkoxymethyl group. Examples of the ethylenically unsaturated bond-containing group include a vinyl group, an allyl group, and a (meth) acryloyl group. Examples of the cyclic ether group include an epoxy group and an oxetanyl group.

^{R 1} of the formulas (1) to (3) is preferably an aryl group, a phthalimide group or a naphthalimide group, and may be a phthalimide group or a phthalimide group because better storage stability can be obtained. More preferably, it is a phthalimide group. Aryl groups, phthalimide groups and naphthalimide groups may have substituents. Examples of the substituent include a substituent T described later, a group represented by the above formula (T-1), a group represented by the above formula (T-2) and a group represented by the above formula (T-3). Be done. When these groups contain two or more substituents, the substituents may be bonded to each other to form a ring. Examples of the ring formed by bonding the substituents include a 5- to 7-membered aliphatic ring or an aromatic ring, and a 5- or 6-membered aliphatic ring or an aromatic ring is preferable. It is more preferably a 6-membered aliphatic ring or an aromatic ring, and even more preferably a benzene ring. The ring formed by bonding these groups to each other may further have a substituent. Further, as the substituent, the substituent T described later, the group represented by the above formula (T-1), the group represented by the above formula (T-2) and the above formula (T-3) are represented. The group is mentioned.

^R 2 ~ ^{R 6} of formula (1) to (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an aryl group, represented by a nitro group, a hydroxy group, the above formulas (T-1) The group is preferably a group represented by the above formula (T-2) or a group represented by the above formula (T-3). Alkyl groups and aryl groups may have substituents. Examples of the substituent include a substituent T described later, a group represented by the above formula (T-1), a group represented by the above formula (T-2) and a group represented by the above formula (T-3). Be done.

Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, and a chlorine atom or a bromine atom is preferable.
The number of carbon atoms of the alkyl group is preferably 1 to 30, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear.
The aryl group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms.

One preferred embodiment of ^R 2 - ^{R 6} of formula (1) to ^(3), independently R 2 - ^{R 6} are each a hydrogen atom, a manner a nitro group or a hydroxy group. In this embodiment, the reason that more excellent light resistance is obtained, it is preferable that at least one of R 2 ^~ R ⁶ is a nitro group or a hydroxy group.

Table In formulas (1) to (3) as a preferred alternative embodiment of ^R 2 - ^{R ^6,} the group or the formula at least one of R 2 - ^{R 6} is represented by the formula (T-1) (T-2) Examples thereof include aspects that are the basis of the group. According to this aspect, the dispersibility of the specific yellow colorant in the coloring composition is good, and more excellent storage stability can be easily obtained.

Other preferable embodiments of ^R 2 - ^{R 6} of formula (1) to ^(3), at least one of R 2 - ^{R 6} can be cited aspect is a group represented by the formula (T-3). According to this aspect, more excellent light resistance can be easily obtained.

^{X 1} of the formulas (1) to (3) represents an atom or an atomic group constituting a ring.
Examples of the above ring include a 5- to 7-membered ring, preferably a 5- or 6-membered ring, and more preferably a 5-membered ring. The above ring may further have a substituent. Examples of the substituent include a substituent T described later, a group represented by the above formula (T-1), a group represented by the above formula (T-2) and a group represented by the above formula (T-3). Can be mentioned. When the above ring contains two or more substituents, the substituents may be bonded to each other to form a ring. Examples of the ring formed by bonding the substituents include a 5- to 7-membered aliphatic ring or an aromatic ring, and a 5- or 6-membered aliphatic ring or an aromatic ring is preferable. It is more preferably a 6-membered aliphatic ring or an aromatic ring, and even more preferably a benzene ring. The ring formed by bonding these groups to each other may further have a substituent. Further substituents include a substituent T described later, a group represented by the above formula (T-1), a group represented by the above formula (T-2), and a group represented by the above formula (T-3). Can be mentioned.

In the specific yellow colorant, the structure represented by the above formula (1) is a structure represented by the following formula (1a), and the structure represented by the above formula (2) is a structure represented by the following formula (2a). Therefore, it is preferable that the structure represented by the above formula (3) is a structure represented by the following formula (3a). According to this aspect, the above-mentioned effect can be obtained more remarkably.

In the above formula, R ¹ to R ⁶ independently represent a hydrogen atom or a substituent, and R ⁹ to R ¹² independently represent a hydrogen atom or a substituent, and R ⁹ to R ¹² are adjacent to each other. The two groups may be bonded to each other to form a ring, and ^{at least one of R 1} to R ⁶ and R ⁹ to R ¹² may contain a bond with an adjacent atom.

^R 1 ~ ^{R 6} of formula (1a) - (3a) has the same meaning as ^R 1 - ^{R 6} of formula (1) to (3), and preferred ranges are also the same.

^{The substituents represented by R 9} to R ^{12 of the} formulas (1a) to (3a) include the group mentioned in the substituent T described later, the group represented by the above formula (T-1), and the above formula (T-2). ) And the group represented by the above formula (T-3). ^{R 9} to R ¹² of the formulas (1a) to (3a) are independently represented by a hydrogen atom, a halogen atom, an alkyl group, a thioalkyl group, an aryl group, a nitro group, a hydroxy group, and the above formula (T-1). The group represented, the group represented by the above formula (T-2) or the group represented by the above formula (T-3) is preferable. Alkyl groups, thioalkyl groups, and aryl groups may have substituents. Examples of the substituent include a substituent T described later, a group represented by the above formula (T-1), a group represented by the above formula (T-2) and a group represented by the above formula (T-3). Be done.

Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, and a chlorine atom or a bromine atom is preferable.
The number of carbon atoms of the alkyl group and the thioalkyl group is preferably 1 to 30, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group and the thioalkyl group may be linear, branched or cyclic, preferably linear or branched, and more preferably linear.
The aryl group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms.

Two adjacent groups of R ⁹ to R ¹² may be bonded to each other to form a ring. Examples of the ring formed by bonding these groups to each other include a 5- to 7-membered aliphatic ring or an aromatic ring, and a 5- or 6-membered aliphatic ring or an aromatic ring is preferable. , A 6-membered aliphatic ring or an aromatic ring is more preferable, and a benzene ring is further preferable. The ring formed by bonding these groups to each other may further have a substituent. Further, as the substituent, the substituent T described later, the group represented by the above formula (T-1), the group represented by the above formula (T-2) and the above formula (T-3) are represented. The group is mentioned.

In a preferred embodiment of ^R 9 ^{~ R 12} of formula (1a) ~ ^(3a), at least one of a halogen atom ^R 9 ^~ R ^12, include embodiments a nitro group or a hydroxy group. According to this aspect, better light resistance can be obtained. A preferred example of this embodiment is an embodiment in which R ⁹ to R ¹² are all halogen atoms. Further, as another preferable example, an embodiment ^{in which 1 to 3 of R 9} to R ¹² are halogen atoms and the rest are thioalkyl groups can be mentioned. Even in this aspect, better light resistance can be obtained.

Other preferable embodiments of ^R 9 ^{~ R 12} of formula (1a) ~ ^(3a), include embodiments where two groups adjacent to each other are bonded to form a ring of ^R 9 ^~ R ^12. Preferably, R ¹⁰ and R ¹¹ are combined to form a ring. Examples of the ring formed by bonding these groups to each other include a 5- to 7-membered aliphatic ring or an aromatic ring, and a 5- or 6-membered aliphatic ring or an aromatic ring is preferable. , A 6-membered aliphatic ring or an aromatic ring is more preferable, and a benzene ring is further preferable. According to this aspect, better light resistance can be obtained.

Other preferable embodiments of ^R 9 ^{~ R 12} of formula (1a) ~ ^(3a), at least one of R 9 ^{~ R 12} are exemplified embodiment a nitro group or a hydroxy group. According to this aspect, more excellent light resistance can be easily obtained.

Table formula (1a) ~ Other preferable embodiments of ^R 9 ^{~ R 12} of ^(3a), R 9 at least a base one is represented by the formula (T-1) or the formula ^{~ R 12} (T-2) Examples thereof include aspects that are the basis of the group. According to this aspect, the dispersibility of the specific yellow colorant in the coloring composition is good, and more excellent storage stability can be easily obtained.

Other preferable embodiments of ^R 9 ^{~ R 12} of formula (1a) ~ ^(3a), at least one of R 9 ^{~ R 12} are exemplified embodiment is a group represented by the formula (T-3). According to this aspect, more excellent light resistance can be easily obtained.

In the specific yellow colorant, the structure represented by the above formula (1) is a structure represented by the following formula (1b), and the structure represented by the above formula (2) is a structure represented by the following formula (2b). Therefore, it is preferable that the structure represented by the above formula (3) is a structure represented by the following formula (3b). According to this aspect, the above-mentioned effect can be obtained more remarkably.

^Wherein, R 9 ^{~ R 16} are each independently a hydrogen atom or a ^substituent, two groups adjacent to each other among R 9 ^{~ R 16} may form a ^{ring, R} 9 ~ ^At least one of R 16 may include a bond with an adjacent atom.

^R 9 ^{~ R 12} of formula (1b) ~ (3b) has the same meaning as ^R 9 ^{~ R 12} of formula (1a) ~ (3a), and preferred ranges are also the same.

^{The substituents represented by R 13} to R ^{16 of the} formulas (1b) to (3b) include the group mentioned in the substituent T described later, the group represented by the above formula (T-1), and the above formula (T-2). ) And the group represented by the above formula (T-3). ^{R 13} to R ¹⁶ of the formulas (1a) to (3a) are independently represented by a hydrogen atom, a halogen atom, an alkyl group, a thioalkyl group, an aryl group, a nitro group, a hydroxy group, and the above formula (T-1). The group represented, the group represented by the above formula (T-2) or the group represented by the above formula (T-3) is preferable. Alkyl groups, thioalkyl groups and aryl groups may have substituents. Examples of the substituent include a substituent T described later, a group represented by the above formula (T-1), a group represented by the above formula (T-2) and a group represented by the above formula (T-3). Be done.

Two adjacent groups of R ¹³ to R ¹⁶ may be bonded to each other to form a ring. Examples of the ring formed by bonding these groups to each other include a 5- to 7-membered aliphatic ring or an aromatic ring, and a 5- or 6-membered aliphatic ring or an aromatic ring is preferable. , A 6-membered aliphatic ring or an aromatic ring is more preferable, and a benzene ring is further preferable. The ring formed by bonding these groups to each other may further have a substituent. Further, as the substituent, the substituent T described later, the group represented by the above formula (T-1), the group represented by the above formula (T-2) and the above formula (T-3) are represented. The group is mentioned.

In a preferred embodiment of ^R 13 ^{~ R 16} of formula (1b) ~ ^(3b), at least one halogen atom ^R 13 ^~ R ^16, include embodiments a nitro group or a hydroxy group. According to this aspect, better light resistance can be obtained. A preferred example of this embodiment is an embodiment in which R ¹³ to R ¹⁶ are all halogen atoms. Further, as another preferable example, an embodiment ^{in which 1 to 3 of R 13} to R ¹⁶ are halogen atoms and the rest are thioalkyl groups can be mentioned. Even in this aspect, better light resistance can be obtained.

Other preferred embodiments of ^R 13 ^{~ R 16} of formula (1b) ~ ^(3b), include embodiments where two groups adjacent to each other are bonded to form a ring of ^R 13 ^~ R ^16. Preferably, R ¹⁴ and R ¹⁵ are combined to form a ring. Examples of the ring formed by bonding these groups to each other include a 5- to 7-membered aliphatic ring or an aromatic ring, and a 5- or 6-membered aliphatic ring or an aromatic ring is preferable. , A 6-membered aliphatic ring or an aromatic ring is more preferable, and a benzene ring is further preferable. According to this aspect, better light resistance can be obtained.

Other preferred embodiments of ^R 13 ^{~ R 16} of formula (1b) ~ ^(3b), at least one of R 13 ^{~ R 16} can be mentioned a mode a nitro group or a hydroxy group. According to this aspect, more excellent light resistance can be easily obtained.

Table formula (1b) ~ Other preferable embodiments of ^R 13 ^{~ R 16} of ^(3b), R 13 group, or a group of the formula at least one ^{~ R 16} is represented by the formula (T-1) (T- 2) Examples thereof include aspects that are the basis of the group. According to this aspect, the dispersibility of the specific yellow colorant in the coloring composition is good, and more excellent storage stability can be easily obtained.

Other preferred embodiments of ^R 13 ^{~ R 16} of formula (1b) ~ ^(3b), at least one of R 13 ^{~ R 16} can be mentioned a mode is a group represented by the formula (T-3). According to this aspect, more excellent light resistance can be easily obtained.

(Substituent T)
As the substituent T, a halogen atom, a cyano group, a nitro group, an alkyl group, an aryl group, a heterocyclic group, -ORt ¹ , -CORt ¹ , -COORt ¹ , -OCORt ¹ , -NRt ¹ Rt ² , -NHCORt ¹ , -CONRT ¹ Rt ² , -NHCONRT ¹ Rt ² , -NHCOORt ¹ , -SRt ¹ , -SO ₂ Rt ¹ , -SO ₂ ORt ¹ , -NHSO ₂ Rt ¹ and -SO ₂ NRt ¹ Rt ² . Rt ¹ and Rt ² independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, respectively. Rt ¹ and Rt ² may be combined to form a ring.

Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.
The number of carbon atoms of the alkyl group is preferably 1 to 30, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear.
The aryl group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms.
The heterocyclic group may be a monocyclic ring or a condensed ring. The heterocyclic group is preferably a single ring or a condensed ring having 2 to 4 condensation numbers. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1 to 3. The hetero atom 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 to 30, more preferably 3 to 18, and even more preferably 3 to 12.
Alkyl groups, aryl groups and heterocyclic groups may have additional substituents. As further substituents, the substituent described by the above-mentioned Substituent T, the group represented by the above formula (T-1), the group represented by the above formula (T-2) and the above formula (T-3). ) Can be mentioned.

In the specific yellow colorant, it is represented by the formula (1) with respect to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). The ratio of the number of moles of the structure is preferably 0.55 or more, more preferably 0.75 or more, and 0.90 or more from the viewpoint of light resistance and spectral characteristics of the obtained film. Is more preferable. Further, the mole of the structure represented by the formula (1) is relative to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). The ratio of numbers is preferably 0.98 or less, more preferably 0.95 or less, and even more preferably 0.93 or less from the viewpoint of storage stability.

In the specific yellow colorant, it is represented by the formula (2) with respect to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). The ratio of the number of moles of the structure is preferably 0.005 or more, more preferably 0.01 or more, and further preferably 0.05 or more from the viewpoint of storage stability. Further, the mole of the structure represented by the formula (2) is relative to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2), and the structure represented by the formula (3). The ratio of numbers is preferably 0.50 or less, more preferably 0.25 or less, and even more preferably 0.10 or less from the viewpoint of spectral characteristics.

In the specific yellow colorant, it is represented by the formula (3) with respect to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). The ratio of the number of moles of the structure is preferably 0.005 or more, more preferably 0.01 or more, and further preferably 0.05 or more from the viewpoint of storage stability. Further, the mole of the structure represented by the formula (3) is relative to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2), and the structure represented by the formula (3). The ratio of numbers is preferably 0.50 or less, more preferably 0.25 or less, and even more preferably 0.10 or less from the viewpoint of spectral characteristics.

The acid value of the specific yellow colorant is preferably 150 mgKOH / g or less, more preferably 100 mgKOH / g or less, and 50 mgKOH / g or less because it is easy to form a film having more excellent moisture resistance. It is more preferably present, and particularly preferably 0 mgKOH / g.

The specific yellow colorant may be a pigment or a dye, but is preferably a pigment because it is easy to form a film having more excellent light resistance and moisture resistance.

Hereinafter, the compound having a structure represented by the formula (1) is also referred to as a compound (1), and the compound having a structure represented by the formula (2) is also referred to as a compound (2) and is represented by the formula (3). A compound having a structure is also referred to as compound (3).

The compound (1) may be a compound having only one structure represented by the formula (1) in one molecule, or a compound having two or more structures. When the compound (1) is a compound having two or more structures represented by the formula (1) in one molecule, the compound is adjacent to at least one ^{of R 1} to R ⁶ and X ^{1 of the formula (1).} A compound having a structure in which two or more structures represented by the formula (1) are bonded via a divalent or higher valent linking group, which includes a bond with an atom, or a compound represented by the formula (1) on a side chain of a polymer. Examples thereof include compounds having a structure in which the structures to be formed are bonded.

Further, the compound (1) may be a compound containing a structure represented by the formula (1) and a structure represented by the formula (2) in one molecule, respectively, and the formula (1) may be contained in one molecule. ) And the structure represented by the formula (3), respectively, may be a compound, and the structure represented by the formula (1) and the structure represented by the formula (2) in one molecule may be used. It may be a compound containing the above-mentioned structure and the structure represented by the formula (3).
As a compound in which the compound (1) contains a structure represented by the formula (1) and a structure represented by the formula (2) in one molecule, the compound (1) is represented by the formula (1) via a divalent or higher valent linking group. A compound having a structure in which the structure represented by the formula (2) and the structure represented by the formula (2) are bonded, a structure represented by the formula (1) on the side chain of the polymer, and a structure represented by the formula (2). Examples thereof include compounds having a bonded structure. Compound (1) contains a structure represented by the formula (1) and a structure represented by the formula (3) in one molecule, and compound (1) is represented by the formula (1) in one molecule. The same applies to a compound containing the above-mentioned structure, the structure represented by the formula (2), and the structure represented by the formula (3).

Further, the compound (2) may be a compound having only one structure represented by the formula (2) in one molecule, or a compound having two or more structures. Further, the compound (2) may be a compound containing a structure represented by the formula (2) and a structure represented by the formula (3) in one molecule.

Further, the compound (3) may be a compound having only one structure represented by the formula (3) in one molecule, or a compound having two or more structures.

In the specific yellow colorant, the compound (2) contained together with the compound (1) is preferably a tautomer of the compound (1). Further, the compound (3) contained together with the compound (1) is preferably a tautomer of the compound (1). That is, the specific yellow colorant preferably contains compound (1) and at least one selected from compound (2) and compound (3) having a structure that is a tautomer of compound (1). For example, among the specific examples of compounds (1) to (3) described later, AIII-1 (specific example of compound (2)) and AIII-1 (specific example of compound (3)) are AI-1 (specific examples). It is a tautomer of compound (1).

Specific examples of the compound (1) include compounds having a structure represented by the following formula (AI) (structural examples (AI-1) to (AI-22)). Formula The structure of the elements constituting the ^R A1 ^{~ R A7} of (AI) are shown in the following Table.

Specific examples of the compound (2) include compounds having a structure represented by the following formula (AII) (structural examples (AII-1) to (AII-22). R ^B1 to R of the following formula (AII). ^{The structure of each element constituting B7} is shown in the table below.

Specific examples of the compound (3) include compounds having a structure represented by the following formula (AIII) (Structural Examples (AIII-1) to (AIII-22)). Formula The structure of the elements constituting the ^R C1 ^{~ R C7} of (AIII) in the following Table.

The yellow colorant used in the present invention may contain a yellow colorant other than the above-mentioned specific yellow colorant (hereinafter, also referred to as another yellow colorant). According to this aspect, the effect that the crystallinity of the specific yellow colorant in the coloring composition can be lowered and the thixotropy property of the coloring composition can be further lowered can be obtained.

Other pigments used as yellow colorants include Color Index (CI) 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, 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, 232 (methine type) and the like. Be done.

Examples of dyes used as other yellow colorants include C.I. I. Acid Yellow 1,7,9,11,17,23,25,29,34,36,42,54,72,73,76,79,98,99,111,112,114,116,184,200, etc. Can be mentioned.

(Other colorants)
The coloring composition of the present invention may further contain a coloring agent other than the yellow coloring agent. According to this aspect, the crystallinity of the specific yellow colorant in the coloring composition can be lowered, and the thixotropy property of the coloring composition can be further lowered. Examples of other colorants used in combination include chromatic colorants such as green colorants, red colorants, purple colorants, blue colorants, and orange colorants, and black colorants. As other colorants, green colorants and red colorants are preferable. When a green colorant is contained as another colorant, it is preferably used as a coloring composition for forming green pixels of a color filter. When a red colorant is contained as another colorant, it is preferably used as a coloring composition for forming red pixels of a color filter. It is also preferable to use a black colorant as another colorant. When a black colorant is contained as another colorant, it is preferably used as a color composition for forming an infrared transmission filter. The other colorant may be a pigment or a dye.

Further, the colorant contained in the coloring composition may contain two or more kinds of chromatic colorants, and a combination of two or more kinds of chromatic colorants may form black. Such a coloring composition is preferably used as a coloring composition for forming an infrared transmission filter. The following are examples of combinations of chromatic colorants when black is formed by a combination of two or more chromatic colorants.
(1) An embodiment containing a red colorant, a blue colorant, and a yellow colorant.
(2) An embodiment containing a red colorant, a blue colorant, a yellow colorant, and a purple colorant.
(3) An embodiment containing a red colorant, a blue colorant, a yellow colorant, a purple colorant, and a green colorant.
(4) An embodiment containing a red colorant, a blue colorant, a yellow colorant, and a green colorant.
(5) An embodiment containing a yellow colorant and a purple colorant.

Examples of pigments used as other colorants include those shown below.
C. I. 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, 83,88,90,105,112,119,122,123,144,146,149,150,155,166,168,169,170,171,172,175,176,177,178,179,184 185,187,188,190,200,202,206,207,208,209,210,216,220,224,226,242,246,254,255,264,270,272,279,294 (xanthene system) , Organo Ultramarine, Bruish Red), 295 (monoazo type), 296 (diazo type), 297 (aminoketone type), etc. (above, red pigment),
C. I. Pigment Green 7,10,36,37,58,59,62,63,64 (phthalocyanine type), 65 (phthalocyanine type), 66 (phthalocyanine type), etc. (above, green pigment),
C. I. Pigment Violet 1,19,23,27,32,37,42,60 (triarylmethane type), 61 (xanthene type), etc. (above, purple pigment),
C. 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 (monoazo system), 88 (methine type), etc. (above, blue pigment),
C. 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. (The above is an orange pigment).

Further, as a green colorant, a halogenated zinc phthalocyanine having an average of 10 to 14 halogen atoms in one molecule, an average of 8 to 12 bromine atoms, and an average of 2 to 5 chlorine atoms. Pigments can also be used. Specific examples include the compounds described in WO 2015/118720. Further, as a green colorant, a compound described in Chinese Patent Application No. 106909027, a phthalocyanine compound having a phosphate ester described in International Publication No. 2012/10395 as a ligand, and Japanese Patent Application Laid-Open No. 2019-008014. The phthalocyanine compound of the above, the phthalocyanine compound described in JP-A-2018-180023, the compound described in JP-A-2019-038958, and the like can also be used.

Further, as the blue colorant, an aluminum phthalocyanine compound having a phosphorus atom can also be used. Specific examples include the compounds described in paragraphs 0022 to 0030 of JP2012-247591A and paragraph numbers 0047 of JP2011-157478A.

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, and a diketopyrrolopyrrole compound described in paragraphs 0016 to 0022 of Patent No. 6248838. , Diketopyrrolopyrrole compound described in WO2012 / 102399, diketopyrrolopyrrole compound described in WO2012 / 117965, naphtholazo compound described in JP2012-229344, patent No. 6516119. The red colorant described in Japanese Patent No. 6525101, the red colorant described in Japanese Patent No. 6525101, and the like can also be used. Further, as the red colorant, a compound having a structure in which an aromatic ring group having an oxygen atom, a sulfur atom or a nitrogen atom bonded to the aromatic ring is bonded to a diketopyrrolopyrrole skeleton is used. You can also.

Examples of the black colorant include bisbenzofuranone compounds, azomethine compounds, perylene compounds, and azo compounds, and bisbenzofuranone compounds and perylene compounds are preferable. Examples of the bisbenzofuranone compound include the compounds described in JP-A-2010-534726, JP-A-2012-515233, and JP-A-2012-515234. For example, as "Irgaphor Black" manufactured by BASF. It is available. Examples of the perylene compound include the compounds described in paragraphs 0016 to 0020 of JP-A-2017-226821, C.I. I. Pigment Black 31, 32 and the like can be mentioned. Examples of the azomethine compound include compounds described in JP-A-01-170601 and JP-A-02-0346664, and are available as, for example, "Chromofine Black A1103" manufactured by Dainichiseika.

The content of the colorant in the total solid content of the coloring composition is preferably 10 to 80% by mass. The lower limit is preferably 15% by mass or more, and more preferably 20% by mass or more. The upper limit is preferably 70% by mass or less, and more preferably 60% by mass or less.

The content of the specific yellow colorant in the colorant is preferably 3.5% by mass or more, more preferably 4.0% by mass or more, and preferably 4.5% by mass or more. It is more preferably 5.0% by mass or more. The upper limit can be 100% by mass, 95% by mass or less, or 90% by mass or less.

The content of the specific yellow colorant in the yellow colorant is preferably 3.5% by mass or more, more preferably 4.0% by mass or more, and preferably 4.5% by mass or more. More preferred. The upper limit can be 100% by mass, 95% by mass or less, or 90% by mass or less. Further, the yellow colorant may be substantially only the specific yellow colorant. When the yellow colorant is substantially only the specific yellow colorant, it means that the ratio of the specific yellow colorant in the total amount of the yellow colorant is 99% by mass or more, and 99.5% by mass or more. It is preferable to have a specific yellow colorant, and more preferably only a specific yellow colorant.

The content of the specific yellow colorant in the total solid content of the coloring composition is preferably 0.35% by mass or more, more preferably 1.0% by mass or more, and 2.0% by mass. The above is more preferable. The upper limit is preferably 80% by mass or less, more preferably 70% by mass or less, and further preferably 60% 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 specific yellow coloring agent in the coloring agent is 3.5 mass by mass from the viewpoint of spectral characteristics, light resistance and moisture resistance. % Or more, more preferably 4.5% by mass or more, and even more preferably 5.0% by mass or more.

When the coloring composition of the present invention is used as a coloring composition for forming green pixels of a color filter, the content of the specific yellow coloring agent in the coloring agent is 3.5 to 3 from the viewpoint of spectral characteristics, light resistance and moisture resistance. It is preferably 60% by mass, more preferably 4.5 to 55% by mass, and even more preferably 5.0 to 50% by mass. In this case, the colorant used in combination with the specific yellow colorant is preferably a green colorant.

When the coloring composition of the present invention is used as a coloring composition for forming red pixels of a color filter, the content of the specific yellow coloring agent in the coloring agent is 3.5 from the viewpoint of spectral characteristics, light resistance and moisture resistance. It is preferably to 60% by mass, more preferably 4.5 to 55% by mass, and even more preferably 5.0 to 50% by mass. In this case, the colorant used in combination with the specific yellow colorant is preferably a red colorant.

When the coloring composition of the present invention is used as a coloring composition for forming an infrared transmission filter, the content of the specific yellow colorant in the colorant is 3.5 to 60 from the viewpoint of spectral characteristics, light resistance and moisture resistance. It is preferably by mass, more preferably 4.5 to 55% by mass, and even more preferably 5.0 to 50% by mass. In this case, examples of the colorant used in combination with the specific yellow colorant include a red colorant, a blue colorant, a purple colorant, a green colorant, and a black colorant.

<< Curable compound >>
The coloring composition of the present invention contains a curable compound. Examples of the curable compound include polymerizable compounds and resins. The resin may be a non-polymerizable resin (a resin having no polymerizable group) or a polymerizable resin (a resin having a polymerizable group). Examples of the polymerizable group include an ethylenically unsaturated bond-containing group, a cyclic ether group, a methylol group, and an alkoxymethyl group. Examples of the ethylenically unsaturated bond-containing group include a vinyl group, an allyl group, and a (meth) acryloyl group. Examples of the cyclic ether group include an epoxy group and an oxetanyl group, and an epoxy group is preferable. The resin having a polymerizable group is also a polymerizable compound.

In the present invention, the curable compound preferably contains at least a resin, more preferably a resin and a monomer-type polymerizable compound, and has a resin and a group having an ethylenically unsaturated bond. It is more preferable to use a monomer type polymerizable compound.

The content of the curable compound in the total solid content of the coloring composition is preferably 0.1 to 80% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more, and further preferably 5% by mass or more. The upper limit is preferably 75% by mass or less, more preferably 70% by mass or less. The curable compound may be only one kind or two or more kinds. In the case of two or more types, it is preferable that the total amount thereof is within the above range.

(Polymerizable compound)
Examples of the polymerizable compound include a compound having an ethylenically unsaturated bond-containing group, a compound having a cyclic ether group, a compound having a methylol group, and a compound having an alkoxymethyl group. The polymerizable compound may be a monomer or a resin. A monomer-type polymerizable compound having an ethylenically unsaturated bond-containing group can be preferably used as a radically polymerizable compound. Further, a compound having a cyclic ether group, a compound having a methylol group, and a compound having an alkoxymethyl group can be preferably used as the cationically polymerizable compound.

The molecular weight of the monomer-type polymerizable compound (polymerizable monomer) is preferably less than 2000, more preferably 100 or more and less than 2000, and further preferably 200 or more and less than 2000. The upper limit of the molecular weight is preferably 1500 or less. The weight average molecular weight (Mw) of the resin-type polymerizable compound is preferably 2000 to 2000000. The upper limit of the weight average molecular weight is preferably 1,000,000 or less, and more preferably 500,000 or less. The lower limit of the weight average molecular weight is preferably 3000 or more, and more preferably 5000 or more.

Examples of the resin type polymerizable compound include an epoxy resin and a resin containing a repeating unit having a polymerizable group.

The compound containing an ethylenically unsaturated bond-containing group as a polymerizable monomer is preferably a (meth) acrylate compound having 3 to 15 functions, and more preferably a (meth) acrylate compound having 3 to 6 functions. As specific examples, paragraph numbers 0905 to 0108 of JP2009-288705A, paragraphs 0227 of JP2013-029760A, paragraph numbers 0254 to 0257 of JP2008-292970A, and paragraph numbers 0254 to 0257 of JP2013-253224, Japanese Patent Application Laid-Open No. 2013-253224. It is described in paragraph numbers 0034 to 0038 of Japanese Patent Application Laid-Open No. 0034 to 0038, paragraph numbers 0477 of Japanese Patent Application Laid-Open No. 2012-208494, Japanese Patent Application Laid-Open No. 2017-048367, Japanese Patent No. 6057891, Japanese Patent No. 6031807, and Japanese Patent Application Laid-Open No. 2017-194662. These compounds are incorporated herein by reference.

Compounds containing an ethylenically unsaturated bond-containing group include dipentaerythritol tri (meth) acrylate (commercially available KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.) and dipentaerythritol tetra (meth) acrylate (commercially available). KAYARAD D-320; manufactured by Nippon Kayaku Co., Ltd., dipentaerythritol penta (meth) acrylate (commercially available KAYARAD D-310; manufactured by Nihon 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 Industry Co., Ltd.), and the (meth) acryloyl group of these compounds is ethylene glycol and / Or compounds having a structure linked via a propylene glycol residue (for example, SR454, SR499 commercially available from Sartmer) and the like can be mentioned. Examples of the compound containing an ethylenically unsaturated bond-containing group include diglycerin EO (ethylene oxide) modified (meth) acrylate (commercially available M-460; manufactured by Toa Synthetic) and pentaerythritol tetraacrylate (Shin-Nakamura Chemical Industry Co., Ltd.). NK ester A-TMMT (manufactured by Nippon Kayaku Co., Ltd.), 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 Nippon Kayaku Co., Ltd.) Toa Synthetic Co., Ltd., NK Oligo UA-7200 (Shin-Nakamura Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (Taisei Fine Chemical Co., Ltd.), Light Acrylate POB-A0 (Kyoeisha Chemical Co., Ltd.) ), Etc. can also be used.

Examples of the compound containing an ethylenically unsaturated bond-containing group include trimethylolpropane tri (meth) acrylate, trimethylolpropane propylene oxide-modified tri (meth) acrylate, trimethylolpropane ethylene oxide-modified tri (meth) acrylate, and ethylene oxide isocyanurate. It is also preferable to use a trifunctional (meth) acrylate compound such as a modified trimethylolpropane or pentaerythritol tri (meth) acrylate. Commercially available 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 Industry Co., Ltd.), KAYARAD GPO-303, TMPTA, THE-330, TPA-330, PET-30 (manufactured by Nippon Kayaku Co., Ltd.) And so on.

The compound containing an ethylenically unsaturated bond-containing group may further have an acid group such as a carboxyl group, a sulfo group, and a phosphoric acid group. Examples of commercially available products of such compounds include Aronix M-305, M-510, M-520, Aronix TO-2349 (manufactured by Toagosei Co., Ltd.) and the like.

As the compound containing an ethylenically unsaturated bond-containing group, a compound having a caprolactone structure can also be used. For the compound having a caprolactone structure, the description in paragraphs 0042 to 0045 of JP2013-253224A can be referred to, and the content thereof is incorporated in the present specification. Examples of the compound having a caprolactone structure include DPCA-20, DPCA-30, DPCA-60, DPCA-120, etc., which are commercially available from Nippon Kayaku Co., Ltd. as the KAYARAD DPCA series.

As the compound containing an ethylenically unsaturated bond-containing group, a compound having an ethylenically unsaturated bond-containing group and an alkyleneoxy group can also be used. Such a compound is preferably a compound having an ethylenically unsaturated bond-containing group and an ethyleneoxy group and / or a propyleneoxy group, and is a compound having an ethylenically unsaturated bond-containing group and an ethyleneoxy group. It is more preferable that the compound is a 3 to 6 functional (meth) acrylate compound having 4 to 20 ethyleneoxy groups. Commercially available products include, for example, SR-494, which is a tetrafunctional (meth) acrylate having four ethyleneoxy groups manufactured by Sartmer, and trifunctional (meth) acrylate having three isobutyleneoxy groups manufactured by Nippon Kayaku Co., Ltd. KAYARAD TPA-330 and the like.

As the compound containing an ethylenically unsaturated bond-containing group, a polymerizable compound having a fluorene skeleton can also be used. Examples of commercially available products include Ogsol EA-0200 and EA-0300 (manufactured by Osaka Gas Chemical Co., Ltd., (meth) acrylate monomer having a fluorene skeleton).

As the compound containing an ethylenically unsaturated bond-containing group, it is also preferable to use a compound that does not substantially contain an environmentally regulated substance such as toluene. Examples of commercially available products of such compounds include KAYARAD DPHA LT and KAYARAD DPEA-12 LT (manufactured by Nippon Kayaku Co., Ltd.).

Compounds containing ethylenically unsaturated bond-containing groups are UA-7200 (manufactured by Shin Nakamura Chemical Industry Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I. , AH-600, T-600, AI-600, LINK-202UA (manufactured by Kyoeisha Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (all manufactured by Taisei Fine Chemical Co., Ltd.), Light Acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.) It is also preferable to use (manufactured by Chemical Industry Co., Ltd.).

When the coloring composition of the present invention contains a compound containing an ethylenically unsaturated bond-containing group, the content of the compound containing an ethylenically unsaturated bond-containing group in the total solid content of the coloring composition is 0.1 to 50% by mass is preferable. The lower limit is preferably 0.5% by mass or more, and more preferably 1% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less.
The content of the compound (polymerizable monomer) containing a monomer-type ethylenically unsaturated bond-containing group is preferably 0.1 to 50% by mass based on the total solid content of the coloring composition. The lower limit is preferably 0.5% by mass or more, and more preferably 1% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less.

Examples of the compound having a cyclic ether group include a compound having an epoxy group, a compound having an oxetanyl group, and the like, and a compound having an epoxy group is preferable. Examples of the compound having an epoxy group include a compound having 1 to 100 epoxy groups in one molecule. The upper limit of the number of epoxy groups may be, for example, 10 or less, or 5 or less. The lower limit of the number of epoxy groups is preferably two or more. Examples of the compound having an epoxy group include paragraph numbers 0034 to 0036 of JP2013-011869A, paragraph numbers 0147 to 0156 of JP2014-043556, and paragraph numbers 0085 to 0092 of JP2014-089408. The described compound, the compound described in JP-A-2017-179172, can also be used, and the contents thereof are incorporated in the present specification.

The compound having an epoxy group may be either a low molecular weight compound (for example, a molecular weight of less than 1000) or a polymer compound (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 compound having an epoxy group is preferably 200 to 100,000, more preferably 500 to 50,000. The upper limit of the weight average molecular weight is preferably 10,000 or less, more preferably 5000 or less, and even more preferably 3000 or less.

Commercially available products of compounds having a cyclic ether group include, for example, EHPE3150 (manufactured by Daicel Co., Ltd.), 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 (all manufactured by Nichiyu Co., Ltd., epoxy group-containing polymer) and the like can be mentioned.

When the coloring composition of the present invention contains a compound having a cyclic ether group, the content of the compound having a cyclic ether group 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, and more preferably 1% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less.

Examples of the compound having a methylol group (hereinafter, also referred to as a methylol compound) include a compound in which the methylol group is bonded to a nitrogen atom or a carbon atom forming an aromatic ring. Examples of the compound having an alkoxymethyl group (hereinafter, also referred to as an alkoxymethyl compound) include a compound in which the alkoxymethyl group is bonded to a nitrogen atom or a carbon atom forming an aromatic ring. Examples of compounds in which an alkoxymethyl group or a methylol group is bonded to a nitrogen atom include alkoxymethylated melamine, methylolated melamine, alkoxymethylated benzoguanamine, methylolated benzoguanamine, alkoxymethylated glycoluril, methylolated glycoluril, and alkoxymethylated. Urea, methylolated urea and the like are preferred. Further, the compounds described in paragraphs 0134 to 0147 of JP-A-2004-295116 and paragraphs 095 to 0126 of JP-A-2014-089408 can also be used. When the coloring composition of the present invention contains a methylol compound, the content of the methylol 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, and more preferably 1% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less. When the coloring composition of the present invention contains an alkoxymethyl compound, the content of the alkoxymethyl 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, and more preferably 1% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 30% by mass or less.

(resin)
In the coloring composition of the present invention, a resin can be used as the curable compound. It is preferable to use a curable compound containing at least a resin. The resin is blended, for example, for the purpose of dispersing a pigment or the like in a resin composition or for the purpose of a binder. A resin mainly used for dispersing a pigment or the like in a resin composition is also referred to as a dispersant. However, such an application of the resin is an example, and the resin can be used for purposes other than such an application. The resin having a polymerizable group also corresponds to a polymerizable compound.

The weight average molecular weight (Mw) of the resin is preferably 2000 to 2000000. The upper limit is preferably 1,000,000 or less, and more preferably 500,000 or less. The lower limit is preferably 3000 or more, and more preferably 5000 or more.

Examples of the resin include (meth) acrylic resin, epoxy resin, en-thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, and polyimide resin. Examples thereof include polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, and styrene resin. One of these resins may be used alone, or two or more of these resins may be mixed and used.

It is preferable to use a resin having an acid group as the resin. Examples of the acid group include a carboxyl group, a phosphoric acid group, a sulfo group, and a phenolic hydroxy group. These acid groups may be only one kind or two or more kinds. A resin having an acid group can be preferably used as an alkali-soluble resin. Since the coloring composition of the present invention contains an alkali-soluble resin, a desired pattern can be formed by alkaline development. The acid value of the resin having an acid group is preferably 30 to 500 mgKOH / g. The lower limit is more preferably 50 mgKOH / g or more, and even more preferably 70 mgKOH / g or more. The upper limit is more preferably 400 mgKOH / g or less, further preferably 200 mgKOH / g or less, particularly preferably 150 mgKOH / g or less, and most preferably 120 mgKOH / g or less.

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

In the formula (ED1), R ¹ and R ² each independently represent a hydrocarbon group having 1 to 25 carbon atoms which may have a hydrogen atom or a substituent.

In the 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 of JP-A-2010-168539 can be referred to.

For a specific example of the ether dimer, paragraph number 0317 of JP2013-209760A can be referred to, and the content thereof is incorporated in the present specification.

It is also preferable to use a resin containing a repeating unit having a polymerizable group as the resin.

As the resin, it is also preferable to use a resin containing a repeating unit derived from the compound represented by the 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 to 15. The ^{alkylene group represented by R 21} and R ²² preferably has 1 to 10 carbon atoms, more preferably 1 to 5 carbon atoms, further preferably 1 to 3 carbon atoms, and particularly preferably 2 or 3 carbon atoms. 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 the formula (X) include ethylene oxide of paracumylphenol or propylene oxide-modified (meth) acrylate. Examples of commercially available products include Aronix M-110 (manufactured by Toagosei Co., Ltd.).

It is also preferable to use a resin having a basic group as the resin. The resin having a basic group is preferably a resin containing a repeating unit having a basic group in the side chain, and a copolymer having a repeating unit having a basic group in the side chain and a repeating unit not containing a basic group. A polymer is more preferable, and a block copolymer having a repeating unit having a basic group in the side chain and a repeating unit not containing a basic group is further preferable. A resin having a basic group can also be used as a dispersant. The amine value of the resin having a basic group is preferably 5 to 300 mgKOH / g. The lower limit is preferably 10 mgKOH / g or more, and more preferably 20 mgKOH / g or more. The upper limit is preferably 200 mgKOH / g or less, and more preferably 100 mgKOH / g or less. Examples of the basic group contained in the resin having a basic group include a group represented by the following formula (a-1), a group represented by the following formula (a-2), and the like, and the formula (a-2). ) Is preferable.

In formula (a-1), ^Ra1 and ^Ra2 each independently represent a hydrogen atom, an alkyl group or an aryl group, and ^Ra1 and ^Ra2 may be bonded to each other to form a ring;
Wherein ^{(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, R a12 ^{~ R a19} are each independently , Hydrogen atom, alkyl group or aryl group.

^R ^{^a1,} R a2, R a11 number of carbon atoms of the alkyl group represented by ^{~ R a19} is 1-30, more preferably 1-15, more preferably 1-8, 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. Examples of the substituent include the above-mentioned Substituent T.

^{^{^{R a1, R a2, R a11}}} ~ number of carbon atoms of the aryl ^{group R a19} represents is preferably 6 to 30, more preferably 6 to 20, more preferably 6 to 12. The aryl group may have a substituent. Examples of the substituent include the above-mentioned Substituent T.

The number of carbon atoms of the alkoxy group R ^a11 represents 1 to 30, more preferably 1 to 15, more preferably 1-8, particularly preferably 1-5. The alkoxy group may have a substituent. Examples of the substituent include the above-mentioned Substituent T.

The ^{aryloxy group represented by Ra11} preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 12 carbon atoms. The aryloxy group may have a substituent. Examples of the substituent include the above-mentioned Substituent T.

The number of carbon atoms of the acyl group R ^a11 represents from 2 to 30, more preferably 2 to 20, 2 to 12 is more preferred. The acyl group may have a substituent. Examples of the substituent include the above-mentioned Substituent T.

Specific examples of the resin having a basic group include a resin having the following structure (block copolymer). For resins having a basic group, refer to the block copolymers (B) described in paragraphs 0063 to 0112 of JP2014-219665A and paragraphs 0046 to 0076 of JP2018-156021. The described block copolymer A1 can also be used and these contents are incorporated herein.

It is also preferable that the resin contains a resin having an aromatic carboxyl group (hereinafter, also referred to as resin Ac). In the resin Ac, the aromatic carboxyl 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 carboxyl group is preferably contained in the main chain of the repeating unit. In addition, in this specification, an aromatic carboxyl group is a group having a structure in which one or more carboxyl groups are bonded to an aromatic ring. Among the aromatic carboxyl groups, the number of carboxyl groups bonded to the aromatic ring is preferably 1 to 4, and more preferably 1 to 2.

The resin Ac is preferably a resin containing at least one repeating unit selected from the repeating unit represented by the formula (Ac-1) and the repeating unit represented by the 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 is a polymer. Represents a chain.

^{Examples of the group containing an aromatic carboxyl group represented by Ar 1} in the formula (Ac-1) include a structure derived from an aromatic tricarboxylic acid anhydride, a structure derived from an aromatic tetracarboxylic acid anhydride, and the like. Examples of the aromatic tricarboxylic acid anhydride and the aromatic tetracarboxylic acid anhydride include compounds having the following structures.

In the above formula, Q ¹ is represented by a single bond, -O-, -CO-, -COOCH ₂ CH ₂ OCO-, -SO _2- , -C (CF ₃ ) _2- , and the following formula (Q-1). Represents a group to be used or a group represented by the following formula (Q-2).

Specific examples of the group containing an aromatic carboxyl group represented by Ar ¹ include a group represented by the formula (Ar-11), a group represented by the formula (Ar-12), and a group represented by the formula (Ar-13). Examples include the base.

In the formula (Ar-11), n1 represents an integer of 1 to 4, preferably 1 or 2, and more preferably 2.
In the formula (Ar-12), n2 represents an integer of 1 to 8, preferably an integer of 1 to 4, more preferably 1 or 2, and even more preferably 2.
In the 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, and preferably 1. More preferred. However, at least one of n3 and n4 is an integer of 1 or more.
In the formula (Ar-13), Q ¹ is a single bond, -O-, -CO-, -COOCH ₂ CH ₂ OCO-, -SO _2- , -C (CF ₃ ) _2- , and the above formula (Q-). It represents a group represented by 1) or a group represented by the above formula (Q-2).

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

^{The divalent linking group represented by L 2} in the formula (Ac-1) includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S- and these. A group that combines two or more of the above can be mentioned. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and even more preferably 1 to 15 carbon atoms. 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. The alkylene group and the arylene group may have a substituent. Examples of the substituent include a hydroxy group and the like. The divalent linking group L ² represents ^is preferably a group represented by ^-O-L 2a -O-. L ^2a is an alkylene group; an arylene group; a group combining an alkylene group and an arylene group; at least one selected from an alkylene group and an arylene group, and —O—, −CO−, −COO−, —OCO−, Examples thereof include a group in which at least one selected from -NH- and -S- is combined. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and even more preferably 1 to 15 carbon atoms. The alkylene group may be linear, branched or cyclic. The alkylene group and the arylene group may have a substituent. Examples of the substituent include a hydroxy group and the like.

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

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

^{The trivalent linking group represented by L 12} in the formula (Ac-2) includes a hydrocarbon group, -O-, -CO-, -COO-, -OCO-, -NH-, -S- and two of these. Groups that combine species and above can be mentioned. Examples of the hydrocarbon group include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. The number of carbon atoms of the aliphatic hydrocarbon group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15. The aliphatic hydrocarbon group may be linear, branched or cyclic. The number of carbon atoms of the aromatic hydrocarbon group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10. The hydrocarbon group may have a substituent. Examples of the substituent include a hydroxy group and the like.

In formula (Ac-2), P ¹⁰ represents a polymer chain. The ^{polymer chain represented by P 10} 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 ^{P 10} is preferably 500 to 20,000. The lower limit is preferably 1000 or more. The upper limit is preferably 10,000 or less, more preferably 5000 or less, and even more preferably 3000 or less. When ^{the weight average molecular weight of P 10} is in 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 a repeating unit represented by the formula (Ac-2), this resin is preferably used as a dispersant.

The resin preferably contains a resin as a dispersant. Examples of the dispersant include an acidic dispersant (acidic resin) and a basic dispersant (basic resin). Here, the acidic dispersant (acidic resin) represents a resin in which the amount of acid groups is larger than the amount of basic groups. As the acidic dispersant (acidic resin), a resin having an acid group amount of 70 mol% or more is preferable when the total amount of the acid group amount and the basic group amount is 100 mol%. The acid group of the acidic dispersant (acidic resin) is preferably a carboxyl group. The acid value of the acidic dispersant (acidic resin) is preferably 10 to 105 mgKOH / g. Further, the basic dispersant (basic resin) represents a resin in which the amount of basic groups is larger than the amount of acid groups. As the basic dispersant (basic resin), a resin in which the amount of basic groups exceeds 50 mol% is preferable when the total amount of the amount of acid groups and the amount of basic groups is 100 mol%. The basic group contained in 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, the description in paragraphs 0025 to 0094 of JP2012-255128A can be referred to, and the content thereof is incorporated in the present specification.

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

It is also preferable that the resin used as the dispersant is a polyimine-based dispersant containing a nitrogen atom in at least one of the main chain and the side chain. The polyimine-based dispersant has a main chain having a partial structure having a functional group of pKa14 or less, a side chain having 40 to 10,000 atoms, and a basic nitrogen atom in at least one of the main chain and the side chain. The resin to have is preferable. The basic nitrogen atom is not particularly limited as long as it is a nitrogen atom exhibiting basicity. Regarding the polyimine-based dispersant, the description in paragraphs 0102 to 0166 of JP2012-255128A can be referred to, and this content is incorporated in the present specification.

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 portion. Examples of such a resin include dendrimers (including star-shaped polymers). Specific examples of the dendrimer include polymer compounds C-1 to C-31 described in paragraphs 0196 to 0209 of JP2013-043962.

The resin used as the dispersant is also preferably a resin containing a repeating unit having a polymerizable group in the side chain. The content of the repeating unit having a polymerizable group in the side chain is preferably 10 mol% or more, more preferably 10 to 80 mol%, and 20 to 70 mol% in all the repeating units of the resin. Is even more preferable.

As the resin used as the dispersant, the block copolymers (EB-1) to (EB-9) described in paragraphs 0219 to 0221 of Japanese Patent No. 6432077 can also be used.

Dispersants are also available as commercial products, and specific examples thereof include DISPERBYK series manufactured by BYK Chemie (for example, DISPERBYK-111, 142, 161 etc.) and sparse sparse manufactured by Nippon Lubrizol Co., Ltd. Examples include series (eg, Solsparse 76500). Further, the pigment dispersants described in paragraphs 0041 to 0130 of JP-A-2014-130338 can also be used, and the contents thereof are incorporated in the present specification. Dispersants include JP-A-2018-150498, JP-A-2017-100116, JP-A-2017-100115, JP-A-2016-108520, JP-A-2016-108519, and JP-A-2015. The compound described in Japanese Patent Application Laid-Open No. 232105 may be used. The resin described as the dispersant can also be used for purposes other than the dispersant. For example, it can also be used as a binder.

When the coloring composition of the present invention contains a resin, the content of the resin in the total solid content of the coloring composition is preferably 1 to 80% by mass. The lower limit is preferably 5% by mass or more, more preferably 10% by mass or more, further preferably 15% by mass or more, and particularly preferably 20% by mass or more. The upper limit is preferably 70% by mass or less, more preferably 60% by mass or less, further preferably 50% by mass or less, and particularly preferably 40% by mass or less. The content of the resin containing an acid group is preferably 0.1 to 50% by mass based on the total solid content of the coloring composition. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more, further preferably 2% by mass or more, and particularly preferably 3% by mass or more. The upper limit is more preferably 30% by mass or less, further preferably 20% by mass or less. When a dispersant is contained as the resin, the content of the dispersant is preferably 0.1 to 40% by mass based on the total solid content of the coloring composition. The upper limit is preferably 20% by mass or less, and more preferably 10% by mass or less. The lower limit is preferably 0.5% by mass or more, and more preferably 1% by mass or more. The content of the dispersant is preferably 1 to 100 parts by mass with respect to 100 parts by mass of the pigment. The upper limit is preferably 80 parts by mass or less, more preferably 75 parts by mass or less. The lower limit is preferably 2.5 parts by mass or more, and more preferably 5 parts by mass or more.
The coloring composition of the present invention may contain only one type of resin, or may contain two or more types of resin. When two or more kinds of resins are contained, it is preferable that the total amount thereof is within the above range.

<< Solvent >>
The coloring composition of the present invention contains a solvent. Examples of the solvent include organic solvents. 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. Examples of the organic solvent include ester solvents, ketone solvents, alcohol solvents, amide solvents, ether solvents, hydrocarbon solvents and the like. For these details, paragraph No. 0223 of WO 2015/166779 can be referred to, the contents of which are incorporated herein by reference. Further, an ester solvent substituted with a cyclic alkyl group and a ketone solvent substituted with a cyclic alkyl group can also be preferably used. Specific examples of the organic solvent 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, cyclohexanone, cyclohexyl acetate, cyclopentanone, ethyl carbitol acetate, butyl carbitol acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, 3-methoxy-N, N-dimethylpropanamide, 3-butoxy-N , N-Dimethylpropanamide and the like. However, aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as organic solvents may need to be reduced for environmental reasons (for example, 50 mass ppm (parts) with respect to the total amount of organic solvent. Per million) or less, 10 mass ppm or less, or 1 mass ppm or less).

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

Examples of the method for removing impurities such as metals from the organic solvent include distillation (molecular distillation, thin film distillation, etc.) and filtration using a filter. The filter pore diameter 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 filter material is preferably polytetrafluoroethylene, polyethylene or nylon.

The organic solvent may contain isomers (compounds having the same number of atoms but different structures). Further, only one kind of isomer may be contained, or a plurality of kinds 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 to 95% by mass, more preferably 20 to 90% by mass, and even more preferably 30 to 90% by mass.

Further, it is preferable that the coloring composition of the present invention does not substantially contain an environmentally regulated substance from the viewpoint of environmental regulation. In the present invention, substantially free of the environmentally regulated substance means that the content of the environmentally regulated substance in the coloring composition is 50 mass ppm or less, and preferably 30 mass ppm or less. It is more preferably 10 mass ppm or less, and particularly preferably 1 mass ppm or less. Examples of environmentally regulated substances include benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene. These are REACH (Registration Evolution Analysis and Restriction of Chemicals) regulations, PRTR (Pollutant Release and Transfer Register) method, VOC (Volatile Organic Compounds), regulated by VOC (Volatile Organic Compounds) The method is strictly regulated. These compounds may be used as a solvent in producing each component used in the coloring composition, and may be mixed in the coloring composition as a residual solvent. From the viewpoint of human safety and consideration for the environment, it is preferable to reduce these substances as much as possible. As a method for reducing the environmentally regulated substance, there is a method of heating or depressurizing the inside of the system to raise the boiling point of the environmentally regulated substance to the boiling point or higher, and distilling off the environmentally regulated substance from the system to reduce the amount. When distilling off a small amount of an environmentally regulated substance, it is also useful to azeotrope with a solvent having a boiling point equivalent to that of the solvent in order to improve efficiency. When a compound having radical polymerization property is contained, a polymerization inhibitor or the like is added and distilled under reduced pressure in order to prevent the radical polymerization reaction from proceeding and cross-linking between molecules during distillation under reduced pressure. You may. These distillation methods include a stage of a raw material, a stage of a product obtained by reacting the raw materials (for example, a resin solution after polymerization or a polyfunctional monomer solution), or a stage of a coloring composition prepared by mixing these compounds. It is possible at any stage of.

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

Examples of infrared absorbers include pyrolopyrrole compounds, cyanine compounds, squarylium compounds, phthalocyanine compounds, naphthalocyanine compounds, quaterylene compounds, merocyanine compounds, croconium compounds, oxonor compounds, iminium compounds, dithiol compounds, triarylmethane compounds, pyromethene compounds and azomethine. Examples thereof include compounds, anthraquinone compounds, dibenzofuranone compounds, dithiolene metal complexes, metal oxides, and metal boroides. Examples of the pyrolopyrrole compound include the compounds described in paragraphs 0016 to 0058 of JP2009-263614, the compounds described in paragraphs 0037 to 0052 of JP2011-066731, and International Publication No. 2015/166783. Examples thereof include the compounds described in paragraphs 0010 to 0033. Examples of the squarylium compound include the compounds described in paragraphs 0044 to 0049 of JP2011-208101A, the compounds described in paragraphs 0060 to 0061 of Patent No. 6065169, and paragraph numbers 0040 of International Publication No. 2016/181987. , The compound described in JP-A-2015-176046, the compound described in paragraph number 0072 of International Publication No. 2016/190162, the compound described in paragraph number 0196-0228 of JP-A-2016-074649. , The compound described in paragraph No. 0124 of JP-A-2017-067963, the compound described in International Publication No. 2017/135359, the compound described in JP-A-2017-114956, the compound described in Patent No. 61979940, Examples thereof include the compounds described in International Publication No. 2016/120166. Examples of the cyanine compound include the compounds described in paragraphs 0044 to 0045 of JP2009-108267A, the compounds described in paragraphs 0026 to 0030 of JP2002-194040, and the compounds described in JP2015-172004. , The compound described in JP-A-2015-172102, the compound described in JP-A-2008-088426, the compound described in paragraph No. 0090 of International Publication No. 2016/190162, JP-A-2017-031394. Examples thereof include the compounds described in. Examples of the croconium compound include the compounds described in JP-A-2017-082029. Examples of the iminium compound include the compounds described in JP-A-2008-528706, the compounds described in JP-A-2012-012399, the compounds described in JP-A-2007-092060, and International Publication No. 2018/043564. Examples thereof include the compounds described in paragraphs 0048 to 0063 of. Examples of the phthalocyanine compound include the compound described in paragraph No. 0093 of JP2012-077153, the oxytitanium phthalocyanine described in JP2006-343631, and paragraphs 0013 to 0029 of JP2013-195480. , And the vanadium phthalocyanine compound described in Japanese Patent No. 6081771. Examples of the naphthalocyanine compound include the compounds described in paragraph No. 0093 of JP2012-077153. Examples of the dithiolene metal complex include the compounds described in Japanese Patent No. 5733804. Examples of the metal oxide include indium tin oxide, antimonthine oxide, zinc oxide, Al-doped zinc oxide, fluorine-doped tin dioxide, niobium-doped titanium dioxide, and tungsten oxide. For details of tungsten oxide, paragraph number 0080 of JP-A-2016-006476 can be referred to, and the contents thereof are incorporated in the present specification. Examples of the metal boride include lanthanum hexaboride. Examples of commercially available lanthanum boride, _LaB 6 -F (manufactured by Japan New Metals Co., Ltd.), and the like. Further, as the metal boride, the compound described in International Publication No. 2017/119394 can also be used. Examples of commercially available indium tin oxide products include F-ITO (manufactured by DOWA Hi-Tech Co., Ltd.).

Examples of the infrared absorber include a squarylium compound described in JP-A-2017-197437, a squarylium compound described in JP-A-2017-025311, a squarylium compound described in International Publication No. 2016/154782, and Patent No. 5884953. Squalylium compounds described in Japanese Patent Publication No. 6036689, Squalylium compounds described in Japanese Patent No. 581604, Squalylium compounds described in International Publication No. 2017/213047, paragraph numbers 0090 to 0107, specially mentioned. Pyrrole ring-containing compounds described in paragraphs 0019 to 0075 of Japanese Patent Application Laid-Open No. 2018-054760, pyrrole ring-containing compounds described in paragraph numbers 0078 to 0082 of JP-A-2018-040955, paragraphs of JP-A-2018-002773. Pyrrole ring-containing compounds described in Nos. 0043 to 0069, squarylium compounds having an aromatic ring at the amide α position described in paragraphs 0024 to 0086 of JP-A-2018-041047, amides described in JP-A-2017-179131. Concatenated squalylium compound, compound having a pyrrolbis type squalylium skeleton or croconium skeleton described in JP-A-2017-141215, dihydrocarbazolebis-type squalylium compound described in JP-A-2017-082029, JP-A-2017-068120 The asymmetric compound described in paragraphs 0027 to 0114 of Japanese Patent Application Laid-Open No. 2017, the pyrrole ring-containing compound (carbazole type) described in JP-A-2017-067963, the phthalocyanine compound described in Japanese Patent No. 6251530, and the like are used. You can also do it.

When an infrared absorber is contained, the content of the infrared absorber in the total solid content of the coloring composition is preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less. The lower limit is preferably 1% by mass or more, more preferably 3% by mass or more, and further preferably 5% by mass or more. The total content of the infrared absorber and the colorant in the total solid content of the coloring composition is preferably 10 to 80% by mass. The lower limit is preferably 20% by mass or more, more preferably 30% by mass or more. The content of the infrared absorber is preferably 5 to 50 parts by mass with respect to 100 parts by mass of the colorant. The upper limit is preferably 45 parts by mass or less, and more preferably 40 parts by mass or less. The lower limit is preferably 10 parts by mass or more, and more preferably 15 parts by mass or more.

<< Pigment derivative >>
The coloring composition of the present invention can contain a pigment derivative. Examples of the pigment derivative include compounds having a structure in which an acid group or a basic group is bonded to the pigment skeleton. The pigment skeletons constituting the pigment derivatives include quinoline pigment skeleton, benzoimidazolone pigment skeleton, benzoisoindole pigment skeleton, benzothiazole pigment skeleton, inimium pigment skeleton, squarylium pigment skeleton, croconium pigment skeleton, oxonor pigment skeleton, and pyrolopyrrolop pigment. Skeletal, diketopyrrolopyrrole pigment skeleton, azo pigment skeleton, azomethine pigment skeleton, phthalocyanine pigment skeleton, naphthalocyanine pigment skeleton, anthraquinone pigment skeleton, quinacridone pigment skeleton, dioxazine pigment skeleton, perinone pigment skeleton, perylene pigment skeleton, thioindigo pigment skeleton, Examples thereof include an isoindrin pigment skeleton, an isoindolinone pigment skeleton, a quinophthalone pigment skeleton, an iminium pigment skeleton, a dithiol pigment skeleton, a triarylmethane pigment skeleton, and a pyromethene pigment skeleton. Examples of the acid group include a sulfo group, a carboxyl group, a phosphoric acid group and salts thereof. The atoms or groups that make up 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, etc. Examples include phosphonium ions. Examples of the basic group include an amino group, a pyridinyl group and a salt thereof, a salt of an ammonium group, and a phthalimide methyl group. Examples of the atom or atomic group constituting the salt include hydroxide ion, halogen ion, carboxylic acid ion, sulfonic acid ion, and phenoxide ion.

In the present invention, a pigment derivative having excellent visible transparency (hereinafter, also referred to as a transparent pigment derivative) can be contained as the pigment derivative. The maximum value of the molar extinction coefficient in the wavelength region of 400 ~ 700 nm of the transparent pigment derivative (.epsilon.max) is that it is preferable, 1000L ^· mol ^-1 ^· ^cm -1 or less is not more than 3000L ^· mol ^-1 ^· ^cm -1 Is more preferable, and 100 L · mol ^-1 · cm ^-1 or less is further preferable. The lower limit of εmax is, for example, 1 L · mol ^-1 · cm ^-1 or more, and ^{may be 10 L · mol -1} · cm ^-1 or more.

Specific examples of the pigment derivative include the compounds described in Examples described later, Japanese Patent Application Laid-Open No. 56-118462, Japanese Patent Application Laid-Open No. 63-246674, Japanese Patent Application Laid-Open No. 01-2170777, and Japanese Patent Application Laid-Open No. 03-009961. , Japanese Patent Application Laid-Open No. 03-026767, Japanese Patent Application Laid-Open No. 03-153780, Japanese Patent Application Laid-Open No. 03-045662, Japanese Patent Application Laid-Open No. 04-285669, Japanese Patent Application Laid-Open No. 06-145546, Japanese Patent Application Laid-Open No. 06-212088, Kaihei 06-240158, Japanese Patent Application Laid-Open No. 10-030063, Japanese Patent Application Laid-Open No. 10-195326, International Publication No. 2011/024896, paragraph numbers 0083-0998, International Publication No. 2012/10239, paragraph numbers 0063-0094 , International Publication No. 2017/038252, Paragraph No. 028, Japanese Patent Application Laid-Open No. 2015-151530, Japanese Patent Application Laid-Open No. 2011-52065, Paragraph Nos. 0162 to 0183, Japanese Patent Application Laid-Open No. 2003-081972, Patent No. 5299151. Examples thereof include the compounds described in JP-A-2015-172732, JP-A-2014-199308, JP-A-2014-0855562, JP-A-2014-035351, and JP-A-2008-081565.

When a pigment derivative is contained, the content of the pigment derivative is preferably 1 to 30 parts by mass, more preferably 3 to 20 parts by mass with respect to 100 parts by mass of the pigment. Only one type of pigment derivative may be used, or two or more types may be used in combination. When two or more kinds are used in combination, the total amount thereof is preferably in the above range.

<< Photopolymerization Initiator >>
The coloring composition of the present invention can contain a photopolymerization initiator. In particular, when a polymerizable compound is used as the curable compound, it is preferable to include a photopolymerization initiator. The photopolymerization initiator is not particularly limited and may be appropriately selected from known photopolymerization initiators. For example, a compound having photosensitivity to light rays in the ultraviolet region to the visible region is preferable. The photopolymerization initiator is preferably a photoradical polymerization initiator.

Examples of the photopolymerization initiator include halogenated hydrocarbon derivatives (for example, compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds, hexaarylbiimidazoles, oxime compounds, organic peroxides, and thio compounds. , Ketone compounds, aromatic onium salts, α-hydroxyketone compounds, α-aminoketone compounds and the like. From the viewpoint of exposure sensitivity, the photopolymerization initiator is a trihalomethyltriazine compound, a benzyl dimethyl ketal compound, an α-hydroxyketone compound, an α-aminoketone compound, an acylphosphine compound, a phosphine oxide compound, a metallocene compound, an oxime compound, or a triarylimidazole. Dimer, onium compound, benzothiazole compound, benzophenone compound, acetophenone compound, cyclopentadiene-benzene-iron complex, halomethyloxaziazole compound and 3-aryl substituted coumarin compound are preferable, and oxime compound and α-hydroxyketone compound. , Α-Aminoketone compound, and an acylphosphine compound are more preferable, and an oxime compound is further preferable. Examples of the photopolymerization initiator include 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. Peroxide-based photopolymerization initiator described in 3, 2019, photopolymerization initiator described in International Publication No. 2018/221177, photopolymerization initiator described in International Publication No. 2018/110179, Japanese Patent Application Laid-Open No. 2019-043864 Examples thereof include the photopolymerization initiator described in JP-A-2019-044030, the photopolymerization initiator described in JP-A-2019-167313, and the contents thereof are described in the present specification. Incorporated into the book.

Commercially available α-hydroxyketone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (all manufactured by IGM Resins BV), Irgacure 184, Irgacure 1173, Irgacare 1173, Irgacure29. (Manufactured by the company) and the like. Commercially available α-aminoketone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (above, IGM Resins BV), Irgacare 907, Irgacare 369, Irgacure 369, Irgacure 369, Irgar (Made) and so on. Examples of commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (above, manufactured by IGM Resins BV), Irgacure 819, and Irgacure TPO (above, manufactured by BASF).

Examples of the oxime compound include the compounds described in JP-A-2001-233842, the compounds described in JP-A-2000-080068, and the compounds described in JP-A-2006-342166. C. S. The compound according to Perkin II (1979, pp. 1653-1660), J. Mol. C. S. The compound described in Perkin II (1979, pp. 156-162), the compound described in Journal of Photopolymer Science and Technology (1995, pp. 202-232), the compound described in JP-A-2000-066385, the compound described in JP-A-2000-066385. Compounds described in Japanese Patent Application Laid-Open No. 2004-534977, compounds described in JP-A-2006-342166, compounds described in JP-A-2017-019766, compounds described in Japanese Patent Application Laid-Open No. 6065596, International Publication No. 2015 The compound described in / 152153, the compound described in International Publication No. 2017/051680, the compound described in JP-A-2017-198865, the compound described in paragraphs 0025 to 0038 of International Publication No. 2017/164127, Examples thereof include the compounds described in International Publication No. 2013/167515. Specific examples of the oxime compound include 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminovtan-2-one, 2-acetoxyimiminopentane-3-one, 2-acetoxyimino-1-phenylpropane-1-one, 2-benzoyloxyimino-1-phenylpropane-1-one, 3- (4-toluenesulfonyloxy) iminobutane-2-one, and 2-ethoxycarbonyloxy Examples thereof include imino-1-phenylpropane-1-one. Commercially available products include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, Irgacure OXE04 (above, manufactured by BASF), TR-PBG-304 (manufactured by Joshu Powerful Electronic New Materials Co., Ltd.), ADEKA PTOMER N-1919 (Co., Ltd.) Examples thereof include a photopolymerization initiator 2) manufactured by ADEKA and described in Japanese Patent Application Laid-Open No. 2012-014052. Further, as the oxime compound, it is also preferable to use a compound having no coloring property or a compound having high transparency and being hard to discolor. Examples of commercially available products include ADEKA ARKULS NCI-730, NCI-831, and NCI-930 (all manufactured by ADEKA Corporation).

As the photopolymerization initiator, an oxime compound having a fluorene ring can also be used. Specific examples of the oxime compound having a fluorene ring include the compounds described in JP-A-2014-137466.

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 an oxime compound include the compounds described in International Publication No. 2013/083505.

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

As the photopolymerization initiator, an oxime compound having a nitro group can be used. 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 paragraphs 0031 to 0047 of JP2013-114249A and paragraphs 0008-0012 and 0070-0079 of JP2014-137466. Examples thereof include the compound described in paragraphs 0007 to 0025 of Japanese Patent No. 4223071, ADEKA ARKULS NCI-831 (manufactured by ADEKA Corporation).

As the photopolymerization initiator, an oxime compound having a benzofuran skeleton can also be used. Specific examples include OE-01 to OE-75 described in International Publication No. 2015/036910.

As the photopolymerization initiator, an oxime compound in which a substituent having a hydroxy 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 the oxime compound preferably used in the present invention are shown below, but the present invention is not limited thereto.

The oxime compound is preferably a compound having a maximum absorption wavelength in the wavelength range of 350 to 500 nm, and more preferably a compound having a maximum absorption wavelength in the wavelength range of 360 to 480 nm. The molar extinction coefficient of the oxime compound at a wavelength of 365 nm or a wavelength of 405 nm is preferably high, more preferably 1000 to 300,000, further preferably 2000 to 300,000, and more preferably 5000 to 200,000. It is particularly preferable to have. The molar extinction coefficient of a compound can be measured using a known method. For example, it is preferable to measure 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, a bifunctional or trifunctional or higher functional photoradical polymerization initiator may be used. By using such a photoradical polymerization initiator, two or more radicals are generated from one molecule of the photoradical polymerization initiator, so that good sensitivity can be obtained. Further, when a compound having an asymmetric structure is used, the crystallinity is lowered, the solubility in a solvent or the like is improved, the precipitation is less likely to occur with time, and the stability of the coloring composition with time can be improved. .. Specific examples of the bifunctional or trifunctional or higher functional photo-radical polymerization initiators include JP-A-2010-527339, JP-A-2011-524436, International Publication No. 2015/004565, and JP-A-2016-532675. Dimerics of oxime compounds described in paragraphs 0407 to 0412, paragraphs 0039 to 0055 of International Publication No. 2017/033680, compounds (E) and compounds described in JP2013-522445. G), Cmpd1 to 7 described in International Publication No. 2016/034963, Oxime Esters Photoinitiator described in paragraph No. 0007 of Japanese Patent Application Laid-Open No. 2017-523465, JP-A-2017-167399. The photoinitiator described in paragraphs 0020 to 0033, the photopolymerization initiator (A) described in paragraphs 0017 to 0026 of JP-A-2017-151342, described in Japanese Patent No. 6469669. Examples include oxime ester photoinitiators.

When a photopolymerization initiator is contained, 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, and more preferably 1% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 15% by mass or less. In the coloring composition of the present invention, only one type of photopolymerization initiator may be used, or two or more types may be used. When two or more kinds are used, it is preferable that the total amount thereof is within the above range.

<< Curing Accelerator >>
The coloring composition of the present invention may contain a curing accelerator. Examples of the curing accelerator include thiol compounds, methylol compounds, amine compounds, phosphonium salt compounds, amidin salt compounds, amide compounds, base generators, isocyanate compounds, alkoxysilane compounds, and onium salt compounds. Specific examples of the curing accelerator include the compounds described in paragraphs 0094 to 0097 of WO2018 / 056189, the compounds described in paragraphs 0246 to 0253 of JP2015-034963, and JP2013-014165. Compounds described in paragraphs 0186 to 0251 of Japanese Patent Application Laid-Open No. 0186-0251, ionic compounds described in JP-A-2014-0551414, compounds described in paragraphs 0071 to 0080 of JP-A-2012-150180, JP-A-2011-253504 Examples thereof include an alkoxysilane compound having an epoxy group described in Japanese Patent Application Laid-Open No. 5, a compound described in paragraphs 805 to 0092 of Japanese Patent No. 5765059, and a carboxyl group-containing epoxy curing agent described in JP-A-2017-0363379. When the curing accelerator is contained, 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.

<< UV absorber >>
The coloring composition of the present invention can contain an ultraviolet absorber. As the ultraviolet absorber, a conjugated diene compound, an aminodiene compound, a salicylate compound, a benzophenone compound, a benzotriazole compound, an acrylonitrile compound, a hydroxyphenyltriazine compound, an indol compound, a triazine compound and the like can be used. Examples of such compounds include paragraph numbers 0038 to 0052 of JP2009-217221A, paragraph numbers 0052 to 0072 of JP2012-208374A, and paragraph numbers 0317 to 0334 of JP2013-068814. Examples include the compounds described in paragraphs 0061 to 0080 of JP 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 ultraviolet absorbers include UV-503 (manufactured by Daito Kagaku Co., Ltd.). Examples of the benzotriazole compound include the MYUA series made by Miyoshi Oil & Fat Co., Ltd. (The Chemical Daily, February 1, 2016). Further, as the ultraviolet absorber, the compounds described in paragraphs 0049 to 0059 of Japanese Patent No. 6268967 can also be used.

When an ultraviolet absorber is contained, 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. In the present invention, only one type of ultraviolet absorber may be used, or two or more types may be used. When two or more types are used, the total amount is preferably in the above range.

<< Polymerization inhibitor >>
The coloring composition of the present invention can contain a polymerization inhibitor. Examples of the polymerization inhibitor include hydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, tert-butylcatechol, benzoquinone, 4,4'-thiobis (3-methyl-6-tert-butylphenol), and the like. Examples thereof include 2,2'-methylenebis (4-methyl-6-t-butylphenol) and N-nitrosophenylhydroxyamine salts (ammonium salt, primary cerium salt, etc.). Of these, p-methoxyphenol is preferable. When a polymerization inhibitor is contained, the content of the polymerization inhibitor in the total solid content of the coloring composition is preferably 0.0001 to 5% by mass. The polymerization inhibitor may be only one type or two or more types. In the case of two or more types, the total amount is preferably in the above range.

<< Silane Coupling Agent >>
The coloring composition of the present invention can contain a silane coupling agent. In the present invention, the silane coupling agent means a silane compound having a hydrolyzable group and other functional groups. The hydrolyzable group refers to a substituent that is directly linked to a silicon atom and can form a siloxane bond by at least one of a hydrolysis reaction and a condensation reaction. Examples of the hydrolyzable group include a halogen atom, an alkoxy group, an acyloxy group and the like, and an alkoxy group is preferable. That is, the silane coupling agent is preferably a compound having an alkoxysilyl group. Examples of the functional group other than the hydrolyzable group include a vinyl group, a (meth) allyl group, a (meth) acryloyl group, a mercapto group, an epoxy group, an oxetanyl group, an amino group, a ureido group, a sulfide group and an isocyanate group. , A phenyl group and the like, preferably an amino group, a (meth) acryloyl group and an epoxy group. 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 There are 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. Specific examples of the silane coupling agent include the compounds described in paragraphs 0018 to 0036 of JP2009-288703 and the compounds described in paragraphs 0056 to 0066 of JP2009-242604A. , These contents are incorporated herein by reference. When a silane coupling agent is contained, the content of the silane coupling agent in the total solid content of the coloring composition is preferably 0.01 to 15.0% by mass, more preferably 0.05 to 10.0% by mass. preferable. The silane coupling agent may be only one type or two or more types. In the case of two or more types, the total amount is preferably in the above range.

<< Surfactant >>
The coloring composition of the present invention can contain a surfactant. As the surfactant, various surfactants such as a fluorine-based surfactant, a nonionic surfactant, a cationic surfactant, an anionic surfactant, and a silicone-based surfactant can be used. As for the surfactant, the surfactant described in paragraph Nos. 0238 to 0245 of International Publication No. 2015/166779 is mentioned, and the content thereof is incorporated in the present specification.

The surfactant is preferably a fluorine-based surfactant. By containing a fluorine-based surfactant in the coloring composition, the liquid characteristics (particularly, fluidity) can be further improved, and the liquid saving property can be further improved. It is also possible to form a film having a small thickness unevenness.

The fluorine content in the fluorine-based surfactant is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, and particularly preferably 7 to 25% by mass. A fluorine-based surfactant having a fluorine content within this range is effective in terms of uniformity of coating film thickness and liquid saving property, and has good solubility in a coloring composition.

Examples of the fluorine-based surfactant include the surfactants described in paragraphs 0060 to 0064 of Japanese Patent Application Laid-Open No. 2014-041318 (paragraphs 0060 to 0064 of the corresponding International Publication No. 2014/017669) and the like, Japanese Patent Application Laid-Open No. 2011-. The surfactants described in paragraphs 0117 to 0132 of JP 132503 are mentioned and their contents are incorporated herein by reference. Commercially available products of fluorine-based surfactants include, for example, Megafuck F171, F172, F173, F176, F177, F141, F142, F143, F144, R30, F437, F475, F479, F482, F554, F780, EXP, MFS. -330 (above, manufactured by DIC Co., Ltd.), Florard FC430, FC431, FC171 (above, manufactured by Sumitomo 3M Ltd.), Surfron S-382, SC-101, SC-103, SC-104, SC-105, Examples thereof include SC-1068, SC-381, SC-383, S-393, KH-40 (above, manufactured by AGC Inc.), PolyFox PF636, PF656, PF6320, PF6520, PF7002 (above, manufactured by OMNOVA) and the like. ..

Further, the fluorine-based surfactant has a molecular structure having a functional group containing a fluorine atom, and an acrylic compound in which a portion of the functional group containing a fluorine atom is cut off and the fluorine atom volatilizes when heat is applied. Can be preferably used. Examples of such fluorine-based surfactants include the Megafuck DS series manufactured by DIC Corporation (The Chemical Daily (February 22, 2016), Nikkei Sangyo Shimbun (February 23, 2016)), for example, Megafuck. DS-21 can be mentioned.

Further, as the fluorine-based surfactant, 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. Examples of such a fluorine-based surfactant include the fluorine-based surfactants described in JP-A-2016-216602, the contents of which are incorporated in the present specification.

As the fluorine-based surfactant, a block polymer can also be used. The fluorine-based surfactant 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) (meth). A fluorine-containing polymer compound containing a repeating unit derived from an acrylate compound can also be preferably used. Further, the fluorine-containing surfactants described in paragraphs 0016 to 0037 of JP-A-2010-032698 and the following compounds are also exemplified as the fluorine-based surfactants used in the present invention.

The weight average molecular weight of the above compounds is preferably 3000 to 50000, for example 14000. Among the above compounds,% indicating the ratio of the repeating unit is mol%.

Further, as the fluorine-based surfactant, a fluorine-containing polymer having an ethylenically unsaturated bond-containing group in the side chain can also be used. As specific examples, the compounds described in paragraphs 0050 to 0090 and paragraph numbers 0289 to 0295 of JP2010-164965, Megafuck RS-101, RS-102, RS-718K manufactured by DIC Corporation, RS-72-K and the like can be mentioned. Further, as the fluorine-based surfactant, the compounds described in paragraphs 0015 to 0158 of JP2015-117327A can also be used.

Nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane, their ethoxylates and propoxylates (eg, glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ethers, polyoxyethylene stearyl ethers, etc. 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) , Tetronic 304, 701, 704, 901, 904, 150R1 (manufactured by BASF), Solsparse 20000 (manufactured by Nippon Lubrizol Co., Ltd.), NCW-101, NCW-1001, NCW-1002 (Fujifilm sum) Kojunyaku Co., Ltd., Pionin D-6112, D-6112-W, D-6315 (Takemoto Yushi Co., Ltd.), Orphine E1010, Surfinol 104, 400, 440 (Nissin Chemical Industry Co., Ltd.) ) And so on.

Examples of the silicone-based surfactant include Torre Silicone DC3PA, Torre Silicone SH7PA, Torre Silicone DC11PA, Torre Silicone SH21PA, Torre Silicone SH28PA, Torre Silicone SH29PA, Torre Silicone SH30PA, Torre Silicone SH8400 (all, Toray Dow Corning Co., Ltd.). ), TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (above, manufactured by Momentive Performance Materials), KP-341, KF-6001, KF-6002 (above, (Shinetsu Silicone Co., Ltd.), BYK307, BYK323, BYK330 (all manufactured by Big Chemie) and the like.

When a surfactant is contained, 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 to 3.0% by mass. preferable. The surfactant may be only one kind or two or more kinds. In the case of two or more types, the total amount is preferably in the above range.

<< Antioxidant >>
The coloring composition of the present invention can contain an antioxidant. Examples of the antioxidant include phenol compounds, phosphite ester compounds, thioether compounds and the like. As the phenol compound, any phenol compound known as a phenolic antioxidant can be used. Preferred phenolic compounds include hindered phenolic compounds. A compound having a substituent at a site (ortho position) adjacent to the phenolic hydroxy group is preferable. As the above-mentioned substituent, a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferable. Further, as the antioxidant, a compound having a phenol group and a phosphite ester group in the same molecule is also preferable. Further, as the antioxidant, a phosphorus-based antioxidant can also be preferably 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. When containing an antioxidant, only one type of antioxidant may be used, or two or more types may be used. When two or more types are used, the total amount is preferably in the above range.

<< Other ingredients >>
The coloring compositions of the present invention, as required, include sensitizers, curing accelerators, fillers, thermosetting accelerators, plasticizers and other auxiliaries (eg, conductive particles, fillers, defoamers, It may contain a flame retardant, a leveling agent, a peeling accelerator, a fragrance, a surface tension modifier, a chain transfer agent, etc.). By appropriately containing these components, properties such as film physical characteristics can be adjusted. These components are described in, for example, paragraph No. 0183 or later of JP2012-003225A (paragraph number 0237 of the corresponding US Patent Application Publication No. 2013/0034812), paragraph of JP-A-2008-250074. The descriptions of Nos. 0101 to 0104, 0107 to 0109, etc. can be taken into consideration, and these contents are incorporated in the present specification. In addition, the coloring composition of the present invention may contain a latent antioxidant, if necessary. The latent antioxidant is a compound in which the site that functions as an antioxidant is protected by a protecting group, and is heated at 100 to 250 ° C. or at 80 to 200 ° C. in the presence of an acid / base catalyst. As a result, a compound in which the protecting group is eliminated and functions as an antioxidant can be mentioned. Examples of the latent antioxidant include compounds described in International Publication No. 2014/021023, International Publication No. 2017/030005, and JP-A-2017-008219. Examples of commercially available products of latent antioxidants include ADEKA ARKULS GPA-5001 (manufactured by ADEKA Corporation) and the like. Further, as described in Japanese Patent Application Laid-Open No. 2018-155881, C.I. I. Pigment Yellow 129 may be added for the purpose of improving weather resistance.

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

The coloring composition of the present invention may contain a light resistance improving agent. Examples of the light resistance improving agent include the compounds described in paragraphs 0036 to 0037 of JP-A-2017-198787, the compounds described in paragraphs 0029 to 0034 of JP-A-2017-146350, and JP-A-2017-129774. The compounds described in paragraphs 0036 to 0037 and 0049 to 0052, the compounds described in paragraphs 0031 to 0034 and 0058 to 0059 of JP-A-2017-129674, and paragraph numbers 0036 to 0037 of JP-A-2017-122803. , 0051 to 0054, compounds described in paragraphs 0025 to 0039 of International Publication No. 2017/164127, compounds described in paragraphs 0034 to 0047 of JP-A-2017-186546, JP-A-2015-0251116. Compounds described in paragraphs 0019 to 0041 of JP2012-145604, compounds described in paragraphs 0101 to 0125 of JP2012-145604, compounds described in paragraphs 0018 to 0021 of JP2012-103475, special inventions. The compounds described in paragraphs 0015 to 0018 of Japanese Patent Application Laid-Open No. 2011-257591, the compounds described in paragraphs 0017 to 0021 of JP-A-2011-191483, and paragraph numbers 0108 to 0116 of JP-A-2011-145668. , The compounds described in paragraph Nos. 0103 to 0153 of JP2011-253174A, and the like.

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, and 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 (flatness, etc.), adjusting the film thickness, and the like. The viscosity value can be appropriately selected as needed, but for example, at 25 ° C., 0.3 mPa · s to 50 mPa · s is preferable, and 0.5 mPa · s to 20 mPa · s is more preferable. 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.

The container for the colored composition of the present invention is not particularly limited, and a known container can be used. In addition, as a storage container, for the purpose of suppressing impurities from being mixed into raw materials and compositions, a multi-layer bottle in which the inner wall of the container is composed of 6 types and 6 layers of resin and a bottle in which 6 types of resin are composed of 7 layers are used. It is also preferable to use it. Examples of such a container include the container described in Japanese Patent Application Laid-Open No. 2015-123351.

<Preparation method of coloring composition>
The coloring composition of the present invention can be prepared by mixing the above-mentioned components. In preparing the coloring composition, all the components may be dissolved and / or dispersed in a solvent at the same time to prepare the coloring composition, or each component may be appropriately used as two or more solutions or dispersions, if necessary. Then, these may be mixed at the time of use (at the time of application) to prepare a coloring composition.

Further, when preparing the coloring composition, it is preferable to include a process of dispersing the pigment. In the process of dispersing the pigment, the mechanical force used for dispersing the pigment includes 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. Further, in the pulverization of the pigment in the sand mill (bead mill), it is preferable to use beads having a small diameter and to process under the condition that the pulverization efficiency is increased by increasing the filling rate of the beads. Further, it is preferable to remove coarse particles by filtration, centrifugation or the like after the pulverization treatment. In addition, the process and disperser for dispersing pigments are "Dispersion Technology Complete Works, Published by Information Organization Co., Ltd., July 15, 2005" and "Dispersion technology centered on suspension (solid / liquid dispersion system) and industrial. Practical application The process and disperser described in Paragraph No. 0022 of JP-A-2015-157893, "Comprehensive Data Collection, Published by Management Development Center Publishing Department, October 10, 1978" can be preferably used. Further, in the process of dispersing the pigment, the particles may be miniaturized in the salt milling step. For the materials, equipment, processing conditions, etc. used in the salt milling step, for example, the descriptions in JP-A-2015-194521 and JP-A-2012-046629 can be referred to.

In preparing the coloring composition, it is preferable to filter the coloring 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, fluororesins such as polytetrafluoroethylene (PTFE), polyamide resins such as nylon (eg, nylon-6, nylon-6,6), and polyolefin resins such as polyethylene and polypropylene (PP) (high density, ultrahigh molecular weight). A filter using a material such as (including a polyolefin resin) can be mentioned. Among these materials, polypropylene (including high-density polypropylene) and nylon are preferable.

The pore size of the filter is preferably 0.01 to 7.0 μm, more preferably 0.01 to 3.0 μm, and even more preferably 0.05 to 0.5 μm. If the pore size of the filter is within the above range, fine foreign matter can be removed more reliably. For the pore size value of the filter, the nominal value of the filter manufacturer can be referred to. As the filter, various filters provided by Nippon Pole Co., Ltd. (DFA4201NIEY, etc.), Advantech Toyo Co., Ltd., Japan Entegris Co., Ltd. (formerly Nippon Microlith Co., Ltd.), KITZ Microfilter Co., Ltd., etc. can be used.

It is also preferable to use a fibrous filter medium as the filter. Examples of the fibrous filter medium include polypropylene fiber, nylon fiber, glass fiber and the like. Examples of 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 Co., Ltd. When using filters, different filters (eg, first filter and second filter, etc.) may be combined. At that time, the filtration with each filter may be performed only once or twice or more. Further, filters having different pore diameters may be combined within the above-mentioned range. Further, the filtration with the first filter may be performed only on the dispersion liquid, and after mixing the other components, the filtration may be performed with the second filter.

<Membrane>
The film of the present invention is a film obtained from the above-mentioned coloring composition of the present invention. The film of the present invention can be used for an optical filter such as a color filter or a near-infrared transmission filter.

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, and 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. Further, the film of the present invention can be preferably used as a colored pixel of a color filter. Examples of the colored pixel include a red pixel, a green pixel, a blue pixel, a magenta color pixel, a cyan color pixel, a yellow pixel, and the like, and red pixel, green pixel, and yellow pixel are preferable.

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 of the following spectral characteristics (1) to (4).
(1): The maximum value of the light transmittance in the film thickness direction 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 in the film thickness direction. The minimum value of the transmittance 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 having a wavelength of more than 700 nm.
(2): The maximum value of the light transmittance in the film thickness direction 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 in the film thickness direction. A film having a minimum transmittance 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 having a wavelength exceeding 850 nm.
(3): The maximum value of the light transmittance in the film thickness direction 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 in the film thickness direction. A film having a minimum transmittance 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 having a wavelength exceeding 940 nm.
(4): The maximum value of the light transmittance in the film thickness direction in the wavelength range of 400 to 950 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the light in the film thickness direction. A film having a minimum transmittance 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 having a wavelength of more than 1040 nm.

<Membrane manufacturing method>
Next, the method for producing the film of the present invention will be described. The film of the present invention can be produced through a step of applying the coloring composition of the present invention. The method for producing a film preferably further includes a step of forming a pattern (pixel). Examples of the pattern (pixel) forming method include a photolithography method and a dry etching method, and the photolithography method is preferable.

Pattern formation by the photolithography method includes a step of forming a coloring composition layer on a support using the coloring composition of the present invention, a step of exposing the coloring composition layer in a pattern, and a step of exposing the coloring composition layer in a pattern. It is preferable to include a step of developing and removing the exposed portion to form a pattern (pixel). 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 coloring composition layer, the coloring composition layer of the present invention is used to form the coloring composition layer on the support. The support is not particularly limited and may be appropriately selected depending on the intended use. For example, a glass substrate, a silicon substrate, and the like can be mentioned, and a silicon substrate is preferable. Further, 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 addition, a black matrix that isolates each pixel may be formed on the silicon substrate. Further, the silicon substrate may be provided with a base layer for improving the adhesion with the upper layer, preventing the diffusion of substances, or flattening the surface of the substrate. The base layer may be formed by using a composition obtained by removing a colorant from the coloring composition described in the present specification, a composition containing a curable compound, a surfactant or the like described in the present specification, or the like. The surface contact angle of the base layer is preferably 20 to 70 ° when measured with diiodomethane. Further, it is preferably 30 to 80 ° when measured with water. When the surface contact angle of the base layer is within the above range, the wettability of the resin composition is good. The surface contact angle of the base layer can be adjusted by, for example, adding a surfactant.

As a method for applying the coloring composition, a known method can be used. For example, a dropping method (drop casting); a slit coating method; a spray method; a roll coating method; a rotary coating method (spin coating); a casting coating method; a slit and spin method; a pre-wet method (for example, JP-A-2009-145395). Methods described in the publication); Inkjet (for example, 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. Various printing methods; transfer method using a mold or the like; nano-imprint method and the like can be mentioned. The method of application to inkjet is not particularly limited, and is, for example, the method shown in "Expandable and usable inkjet-infinite possibilities seen in patents-, published in February 2005, Sumi Betechno Research" (especially from page 115). (Page 133), and the methods described in JP-A-2003-262716, JP-A-2003-185831, JP-A-2003-261827, JP-A-2012-126830, JP-A-2006-169325, and the like. Can be mentioned. Further, regarding the method of applying the coloring composition, the description of International Publication No. 2017/030174 and International Publication No. 2017/018419 can be referred to, and these contents are incorporated in the present specification.

The colored composition layer formed on the support may be dried (prebaked). When the film is produced by a low temperature process, it is not necessary to perform prebaking. When prebaking is performed, the prebaking 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, or 80 ° C. or higher. The prebaking time is preferably 10 to 300 seconds, more preferably 40 to 250 seconds, and even more preferably 80 to 220 seconds. Pre-baking can be performed on 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 the colored composition layer through a mask having a predetermined mask pattern using a stepper exposure machine, a scanner exposure machine, or the like. As a result, the exposed portion can be cured.

Examples of radiation (light) that can be used for exposure include g-line and i-line. Further, light having a wavelength of 300 nm or less (preferably light having a wavelength of 180 to 300 nm) can also be used. Examples of the light having a wavelength of 300 nm or less include KrF line (wavelength 248 nm) and ArF line (wavelength 193 nm), and KrF line (wavelength 248 nm) is preferable. Further, a long wave light source having a diameter of 300 nm or more can also be used.

Further, at the time of exposure, light may be continuously irradiated for exposure, or pulsed irradiation may be performed for exposure (pulse exposure). The pulse exposure is an exposure method of a method of repeatedly irradiating and pausing light in a cycle of a short time (for example, a millisecond level or less).

Irradiation dose (exposure dose), for example, preferably 0.03 ~ 2.5J / cm ^2, more preferably 0.05 ~ 1.0J / cm ^2. The oxygen concentration at the time of exposure can be appropriately selected, and in addition to the operation in the atmosphere, for example, in a low oxygen atmosphere having an oxygen concentration of 19% by volume or less (for example, 15% by volume, 5% by volume, or substantially). It may be exposed in an oxygen-free environment), or may be exposed in a high oxygen atmosphere (for example, 22% by volume, 30% by volume, or 50% by volume) in which the oxygen concentration exceeds 21% by volume. The exposure illuminance can be set as appropriate, and is usually selected from the range of ^{1000 W / m 2} to 100,000 ^{W / m 2} (for example, 5000 W / m ² , 15,000 W / m ² , or 35,000 W / m ^2). Can be done. Oxygen concentration and exposure illuminance may appropriately combined conditions, for example, illuminance 10000 W / ^{m 2} at an oxygen concentration of 10 vol%, oxygen concentration of 35 vol% can be such illuminance 20000W / ^{m 2.}

Next, the unexposed portion of the coloring composition layer is developed and removed to form a pattern (pixel). The unexposed portion of the coloring composition layer can be developed and removed using a developing solution. As a result, the colored composition layer of the unexposed portion in the exposure step is eluted in the developing solution, and only the photocured portion remains. The temperature of the developing solution is preferably, for example, 20 to 30 ° C. The development time is preferably 20 to 180 seconds. Further, in order to improve the residue removability, the steps of shaking off the developing solution every 60 seconds and further supplying a new developing solution may be repeated several times.

Examples of the developing solution include organic solvents and alkaline developing solutions, and alkaline developing solutions are preferably used. As the alkaline developer, an alkaline aqueous solution (alkaline developer) obtained by diluting an alkaline agent with pure water is preferable. Examples of the alkaline agent include ammonia, ethylamine, diethylamine, dimethylethanolamine, diglycolamine, diethanolamine, hydroxyamine, 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 thereof include organic alkaline compounds and inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogencarbonate, sodium silicate and sodium metasilicate. As the alkaline agent, a compound having a large molecular weight is preferable in terms 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. In addition, the developer may further contain a surfactant. The developer may be once produced as a concentrated solution and diluted to a concentration required for use from the viewpoint of convenience of transfer and storage. The dilution ratio is not particularly limited, but can be set in the range of, for example, 1.5 to 100 times. It is also preferable to wash (rinse) with pure water after development. Further, it is preferable that the rinsing is performed by supplying the rinsing liquid 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 rinse liquid from the central portion of the support to the peripheral edge of the support. At this time, when moving the nozzle from the central portion of the support to the peripheral portion, the nozzle may be moved while gradually reducing the moving speed. By rinsing in this way, in-plane variation of rinsing can be suppressed. Further, the same effect can be obtained by gradually reducing the rotation speed of the support while moving the nozzle from the central portion to the peripheral portion of the support.

It is preferable to perform additional exposure treatment or heat treatment (post-baking) after development and drying. Additional exposure treatment and post-baking are post-development curing treatments to complete the curing. The heating temperature in the post-baking is, for example, preferably 100 to 240 ° C, more preferably 200 to 240 ° C. Post-baking can be performed on the developed film in a continuous or batch manner using a heating means such as a hot plate, a convection oven (hot air circulation dryer), or a high-frequency heater so as to meet the above conditions. .. When the additional exposure process is performed, the light used for the exposure is preferably light having 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 the dry etching method includes 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 product layer, a step of exposing the photoresist layer in a pattern and then developing to form a resist pattern, and etching the cured product layer using this resist pattern as a mask. It is preferable to include a step of dry etching with a gas. In forming the photoresist layer, it is preferable to further perform a prebaking treatment. In particular, as the process for forming the photoresist layer, it is desirable to carry out a heat treatment after exposure and a heat treatment (post-baking treatment) after development. Regarding the pattern formation by the dry etching method, the description in paragraphs 0010 to 0067 of JP2013-064993A can be referred to, and this content is incorporated in the present specification.

<Optical filter>
The optical filter of the present invention has the above-mentioned film of the present invention. Examples of the type of optical filter include a color filter and an infrared transmission filter, and a color filter is preferable. As the color filter, it is preferable to have the film of the present invention as the colored pixels of the color filter.

The optical filter may be provided with a protective layer on the surface of the film of the present invention. By providing the protective layer, various functions such as oxygen blocking, low reflection, hydrophobicization, and shielding of light of a specific wavelength (ultraviolet rays, near infrared rays, etc.) can be imparted. The thickness of the protective layer is preferably 0.01 to 10 μm, more preferably 0.1 to 5 μm. Examples of the method for forming the protective layer include a method of applying a resin composition dissolved in an organic solvent to form the protective layer, a chemical vapor deposition method, and a method of attaching the molded resin with an adhesive. The components constituting the protective layer include (meth) acrylic resin, en-thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, and polyimide. Resin, polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, styrene resin, polyol resin, polyvinylidene chloride resin, melamine resin, urethane resin, aramid resin, polyamide resin, alkyd resin, epoxy resin, modified silicone resin, fluorine Examples thereof include resins, polycarbonate resins, polyacrylonitrile resins, cellulose resins, Si, C, W, Al ₂ O ₃ , Mo, SiO ₂ , and Si ₂ N _4, and two or more of these components may be contained. For example, in the case of a protective layer for the purpose of blocking oxygen, the protective layer preferably contains a polyol resin, SiO ₂ , and Si ₂ N ₄ . Further, in the case of a protective layer for the purpose of reducing reflection, the protective layer preferably contains a (meth) acrylic resin and a fluororesin.

When the resin composition is applied to form the protective layer, a known method such as a spin coating method, a casting method, a screen printing method, or an inkjet method can be used as the application method of the resin composition. As the organic solvent contained in the resin composition, a known organic solvent (for example, propylene glycol 1-monomethyl ether 2-acetate, cyclopentanone, ethyl lactate, etc.) can be used. When the protective layer is formed by a chemical vapor deposition method, the chemical vapor deposition method is a known chemical vapor deposition method (thermochemical vapor deposition method, plasma chemical vapor deposition method, photochemical vapor deposition method). Can be used.

The protective layer may be an additive such as organic / inorganic fine particles, an absorber for light of a specific wavelength (for example, ultraviolet rays, near infrared rays, etc.), a refractive index adjuster, an antioxidant, an adhesive, a surfactant, etc., if necessary. May be contained. Examples of organic / inorganic fine particles include polymer fine particles (for example, 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 absorbent can be used as the light absorber of a specific wavelength. The content of these additives can be adjusted as appropriate, 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 layer 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 a partition wall, for example, in a grid pattern.

<Solid image sensor>
The solid-state image sensor of the present invention has the above-mentioned film of the present invention. The configuration of the solid-state image sensor is not particularly limited as long as it includes the film of the present invention and functions as a solid-state image sensor, and examples thereof include the following configurations.

On the substrate, there are a plurality of photodiodes constituting the light receiving area of a solid-state image sensor (CCD (charge-coupled device) image sensor, CMOS (complementary metal oxide semiconductor) image sensor, etc.) and a transfer electrode made of polysilicon or the like. A device protective film made of silicon nitride or the like formed on the photodiode and the transfer electrode so as to have a light-shielding film in which only the light-receiving part of the photodiode is opened, and to cover the entire surface of the light-shielding film and the light-receiving part of the photodiode. The configuration has a color filter on the device protective film. Further, a configuration having a condensing means (for example, a microlens or the like; the same applies hereinafter) on the device protective film under the color filter (near the substrate), a configuration having a condensing means on the color filter, and the like. There may be. Further, the color filter may have a structure in which each colored pixel is embedded in a space partitioned by a partition wall, for example, in a grid pattern. In this case, the partition wall preferably has a low refractive index for each colored pixel. Examples of the image pickup apparatus having such a structure include the apparatus described in JP-A-2012-227478, JP-A-2014-179557, and International Publication No. 2018/043654. The image pickup device provided with the solid-state image pickup device of the present invention can be used not only for digital cameras and electronic devices having an image pickup function (mobile phones and the like), but also for in-vehicle cameras and surveillance cameras.

<Image display device>
The image display device of the present invention has the above-mentioned film of the present invention. Examples of the image display device include a liquid crystal display device and an organic electroluminescence display device. For details on the definition of image display devices and the details of each image display device, see, for example, "Electronic Display Device (Akio Sasaki, Kogyo Chosakai Co., Ltd., published in 1990)", "Display Device (by Junaki Ibuki, Industrial Books)" Co., Ltd. (issued in 1989) ”. Further, the liquid crystal display device is described in, for example, "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, Kogyo Chosakai Co., Ltd., published in 1994)". The liquid crystal display device to which the present invention can be applied is not particularly limited, and for example, it can be applied to various types of liquid crystal display devices described in the above-mentioned "next-generation liquid crystal display technology".

The present invention will be described in more detail with reference to examples below. The materials, amounts used, ratios, treatment contents, treatment procedures, etc. shown in the following examples can be appropriately changed as long as they do not deviate from the gist of the present invention. Therefore, the scope of the present invention is not limited to the specific examples shown below.

<Preparation of dispersion>
After mixing the materials listed in the table below, 230 parts by mass of zirconia beads with a diameter of 0.3 mm are added and dispersed for 5 hours using a paint shaker, and the beads are separated by filtration to produce a pigment dispersion. did. The numerical value indicating the blending amount described in the table below is a mass part. In the following, for those described as "Yes" in the column of presence / absence of kneading polishing treatment, a colorant or infrared absorber subjected to kneading polishing treatment by the following method was used.

(Kneading and polishing conditions)
5.3 parts by mass of colorant or infrared absorber, 74.7 parts by mass of grinding agent and 14 parts by mass of binder were added to Laboplast Mill (manufactured by Toyo Seiki Seisakusho Co., Ltd.) in the apparatus. The temperature of the kneaded product was controlled so that the temperature of the kneaded product was 70 ° C., and the mixture was kneaded for 2 hours. As the colorant or infrared absorber, the material described in the “Yellow colorant” type column in the table below or the material described in the “Other colorants, infrared absorber” column in the table below was used. As the grinding agent, neutral anhydrous Glauber's salt E (average particle size (50% volume-based diameter (D50)) = 20 μm, manufactured by Mitajiri Chemical Co., Ltd.) was used. Diethylene glycol was used as the binder. The kneaded product after kneading and polishing was washed with 10 L of water at 24 ° C. to remove the grinding agent and the binder, and treated in a heating oven at 80 ° C. for 24 hours.

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

(Yellow colorant)

In the above table, the compounds described in the column of the types of compound (1), compound (2), and compound (3) are listed above as specific examples of compound (1), compound (2), and compound (3). It is a compound of structure. The numerical value described in the column of molar ratio 1 is the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2), and the structure represented by the formula (3). It is a value of the ratio of the number of moles of the structure represented by the formula (1).

PY129: C.I. I. Pigment Yellow 129
PY139: C.I. I. Pigment Yellow 139
PY150: C.I. I. Pigment Yellow150
PY185: C.I. I. Pigment Yellow 185
PY215: C.I. I. Pigment Yellow 215

(Other colorants, infrared absorbers)
PG36: C.I. I. Pigment Green36 (green colorant)
PG58: C.I. I. Pigment Green 58 (green colorant)
PG62: C.I. I. Pigment Green62 (green colorant)
PG63: C.I. I. Pigment Green63 (green colorant)
SQ-1: Compound with the following structure (green colorant)

PR254: C.I. I. Pigment Red254 (red colorant)
PR264: C.I. I. Pigment Red 264 (red colorant)
Pr272: C.I. I. Pigment Red272 (red colorant)
PO71: C.I. I. Pigment Orange 71 (orange colorant)
PB15: 6: C.I. I. Pigment Blue 15: 6 (blue colorant)
PV23: C.I. I. Pigment Violet23 (purple colorant)
PBk32: Compound with the following structure (black colorant)

IB: Compound with the following structure (black colorant)

IR1: Compound with the following structure (near infrared absorber)

(Pigment derivative)
B1-B15: Compounds with the following structure

(Dispersant)
D1: Resin with the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 24000)

D3: Resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 17000)

D4: Resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 7000)

D5: Resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 16000)

D6: Resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 10000)

D7: Acrylic block copolymer (EB-1) described in paragraph No. 0219 of Japanese Patent No. 6432077.
D9: DISPERBYK-142 (manufactured by BYK Chemie)
D10: Resin having the following structure (block copolymer, the numerical value added to the main chain is the molar ratio. Mw = 6000)

D11: Resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 7500)

(solvent)
S1: Propylene glycol monomethyl ether acetate (PGMEA)
S4: Ethyl lactate S5: Propylene glycol monomethyl ether (PGME)
S6: Cyclopentanone

(Polymerization inhibitor)
H1: p-methoxyphenol

<Evaluation of dispersion>
(Particle size)
The average particle size (secondary particle size) of the pigment in the dispersion obtained above was measured by a dynamic light scattering method using a particle size distribution meter (Nanotrac UPA-EX150, manufactured by Nikkiso Co., Ltd.). The smaller the average particle size, the more preferable.
〔Evaluation criteria〕
A: The average particle size of the pigment is less than 100 nm.
B: The average particle size of the pigment is 100 nm or more and less than 200 nm.
C: The average particle size of the pigment is 200 nm or more.

(Initial viscosity)
The viscosity (mPa · s) of the dispersion liquid obtained above at 25 ° C. was measured using an E-type viscometer under the condition of a rotation speed of 1000 rpm (revolutions per minute), and evaluated according to the following criteria.
〔Evaluation criteria〕
A: It is 15 mPa · s or less.
B: More than 15 mPa · s and less than 30 mPa · s.
C: Exceeds 30 mPa · s.

(Thickness over time)
The dispersion obtained above was heated at a temperature of 45 ° C. for 7 days. The viscosity of the dispersion before and after heating is measured, and the viscosity over time is calculated from the absolute value of the difference between the viscosity of the dispersion before heating (X (ini)) and the viscosity of the dispersion after heating (X (thermo)). did. The viscosity of the dispersion 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 dispersion liquid to 25 ° C.
Thickness thickening rate over time = {| X (thermo) -X (ini) | / X (ini)} x 100
〔Evaluation criteria〕
A: The thickening rate over time is less than 10%.
B: The thickening rate over time is 10% or more and less than 25%.
C: The thickening rate over time is 25% or more.

<Preparation of coloring composition>
The following raw materials were mixed to prepare a coloring composition.

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

(Dispersion)
G dispersions 1 to 73: The above-mentioned G dispersions 1 to 73
G comparative dispersion 1: The above-mentioned G comparative dispersion 1
Y dispersions 1 to 6: The above-mentioned Y dispersions 1 to 6
Y Comparative Dispersion Solution 1: The Y Comparative Dispersion Solution 1 described above
R dispersions 1 to 8: The above-mentioned R dispersions 1 to 8
R comparative dispersion 1: The above-mentioned R comparative dispersion 1
IR dispersions 1 to 4: IR dispersions 1 to 4 described above
Dispersions g1, r1, b1, y1, ir1, v1, bk1, bk2: Dispersions g1, r1, b1, y1, ir1, v1, bk1, bk2 described above.

(binder)
D1, D3, D6, D9: Resin described by the above-mentioned dispersants D1, D3, D6, D9 D2: Resin having the following structure (Mw = 11000, the numerical value added to the main chain is a molar ratio).

D8: Resin having the following structure (Mw = 11000, the numerical value added to the main chain is the molar ratio)

(Polymerizable monomer)
M1: A mixture of compounds having the following structure (a mixture of a left-side compound (bifunctional (meth) acrylate compound) and a right-side compound (5-functional (meth) acrylate compound) having a molar ratio of 7: 3).

M2: Compound with the following structure

M3: Compound with the following structure

M4: Succinic acid-modified dipentaerythritol hexaacrylate M5: Compound with the following structure

M6: Compound with the following structure

(Photopolymerization initiator)
F1-F6: Compounds with the following structure

(Surfactant)
W1: A compound having the following structure (Mw = 14000, the value of% indicating the ratio of repeating units is mol%, a fluorine-based surfactant)

W2: Compound with the following structure (Mw = 3000, silicone-based surfactant)

(Polymerization inhibitor)
H1: p-methoxyphenol

(UV absorber)
UV1, UV2: Compounds with the following structure

(Antioxidant)
I1: Compound with the following structure

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

(solvent)
S1: Propylene glycol monomethyl ether acetate (PGMEA)
S2: Cyclohexanone S3: Butyl acetate S5: Propylene glycol monomethyl ether (PGME)
S6: Cyclopentanone

<Evaluation of spectral characteristics>
Each coloring composition was spin-coated on a glass substrate so that the film thickness after post-baking was 0.6 μm, and heat-treated (pre-baked) for 120 seconds using a hot plate at 100 ° C. Further, heat treatment (post-baking) was performed for 300 seconds using a hot plate at 200 ° C. to form a film. The light transmittance in the wavelength range of 300 to 1000 nm was measured on the glass substrate on which the film was formed using an ultraviolet-visible near-infrared spectrophotometer U-4100 (manufactured by Hitachi High-Technologies Corporation). The spectral characteristics were evaluated using the transmittance ratio T calculated from the following formula. The lower the value of the transmittance ratio T, the better the spectroscopy.
〔Evaluation criteria〕
T = (T _min / T ₉₅₀ ) x 100 (%)
T _min : Minimum transmittance at wavelength 350 to 450 nm T ₉₅₀ : Transmittance at wavelength 950 nm A: T <5
B: 5 ≤ T <15
C: 15 ≤ T <25
D: 25 ≤ T

<Evaluation of light resistance>
The film obtained in the evaluation of the spectral characteristics was irradiated with 20,000 lux light for 20 hours through an ultraviolet cut filter with an Xe lamp, and before and after irradiation with a chromaticity meter MCPD-1000 (manufactured by Otsuka Electronics Co., Ltd.). The ΔEab value of the color difference of the film was measured. The evaluation criteria are as follows, and the evaluation results are shown in the table below.
〔Evaluation criteria〕
A: ΔEab value <2.5
B: 2.5 ≤ ΔEab value <5
C: 5 ≤ ΔEab value <10
D: 10 ≤ ΔEab value

<Evaluation of moisture resistance>
Each colored composition was spin-coated on a silicon wafer so that the film thickness after prebaking was 0.7 μm, and heat-treated (prebaked) for 120 seconds using a hot plate at 100 ° C. Next, using an i-line stepper exposure apparatus FPA-3000i5 + (manufactured by Canon Inc.), light having a wavelength of 365 nm was irradiated with an exposure amount of ^{500 mJ / cm 2 for exposure.} Next, a film was formed by heat treatment (post-baking) for 300 seconds using a hot plate at 220 ° C. The obtained film was subjected to a moisture resistance test for 250 hours at a temperature of 130 ° C. and a humidity of 85% using a moisture resistance tester (HASTEST MODEL304R8, manufactured by HIRAYAMA), and then the film thickness after the moisture resistance test was measured. ..
When [film thickness after the moisture resistance test] / [film thickness before the moisture resistance test] = X, the moisture resistance was evaluated according to the following criteria.
〔Evaluation criteria〕
A: X ≧ 0.95
B: 0.8 ≤ X <0.95
C: 0.65 ≤ X <0.8
D: X <0.65

<Evaluation of storage stability>
The coloring composition obtained above was heated at a temperature of 45 ° C. for 7 days. The viscosity of the coloring composition before and after heating is measured, and the viscosity with time is increased from the absolute value of the difference between the viscosity of the coloring composition before heating (X (ini)) and the viscosity of the coloring composition after heating (X (thermo)). The rate was calculated. The viscosity of the coloring composition was measured using a viscometer (TV-22 type viscometer, cone plate type, manufactured by Toki Sangyo Co., Ltd.). The viscosity of the coloring composition was measured by adjusting the temperature of the coloring composition to 25 ° C.
Thickness thickening rate over time = {| X (thermo) -X (ini) | / X (ini)} x 100
〔Evaluation criteria〕
A: The thickening rate over time is less than 10%.
B: The thickening rate over time is 10% or more and less than 25%.
C: The thickening rate over time is 25% or more.

As shown in the above table, all of the coloring compositions of Examples were able to form a film having excellent storage stability and excellent light resistance. Furthermore, it was also excellent in spectral characteristics and moisture resistance.

(Example 1001)
The green coloring composition was applied onto the silicon wafer by a spin coating method so that the film thickness after film formation was 1.0 μm. Then, using a hot plate, it was heated at 100 ° C. for 2 minutes. Next, using an i-line stepper exposure apparatus FPA-3000i5 + (manufactured by Canon Inc.) ^{, exposure was performed with an exposure amount of 1000 mJ / cm 2} through a mask with a dot pattern of 2 μm square. Then, paddle development was carried out at 23 ° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH). Then, it was rinsed with a spin shower and further washed with pure water. Then, the green coloring composition was patterned to form green pixels by heating at 200 ° C. for 5 minutes using a hot plate. Similarly, the red coloring composition and the blue coloring composition were patterned by the same process to sequentially form red pixels and blue pixels to form a color filter having green pixels, red pixels and blue pixels. In this color filter, green pixels are formed in a Bayer pattern, and red pixels and blue pixels are formed in an island pattern in an adjacent region thereof. The obtained color filter was incorporated into a solid-state image sensor according to a known method. This solid-state image sensor had a suitable image recognition ability. As the green coloring composition, the coloring composition of G Example 45 was used. As the red coloring composition, the coloring composition of R Example 1 was used. The blue coloring composition will be described later.

(Preparation of blue coloring composition)
The following components were mixed, stirred, and then filtered through a nylon filter (manufactured by Nippon Pole Co., Ltd.) having a pore size of 0.45 μm to prepare a blue coloring composition.
Blue pigment dispersion: 44.9 parts by mass Resin 101: 2.1 parts by mass Polymerizable compound 101: 1.5 parts by mass Polymerized compound 102: 0.7 parts by mass Photopolymerization initiator 101: 0.8 parts by mass Interface Activator 101: 4.2 parts by mass PGMEA: 45.8 parts by mass

The raw materials used to prepare the blue coloring composition are as follows.

Blue pigment dispersion C. I. Pigment Blue 15: 6 at 9.7 parts by mass, C.I. I. A mixed solution consisting of 2.4 parts by mass of Pigment Violet 23, 5.5 parts by mass of a dispersant (Disperbyk-161, manufactured by BYK Chemie), and 82.4 parts by mass of PGMEA is mixed with a bead mill (zirconia beads 0.3 mm diameter). Was mixed and dispersed for 3 hours. After that, a high-pressure disperser with a decompression mechanism NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) was used to perform dispersion treatment at a flow rate of 500 g / min under a pressure of ^{2,000 kg / cm 3.} This dispersion treatment was repeated 10 times to obtain a blue pigment dispersion liquid.

Polymerizable compound 101: KAYARAD DPHA (manufactured by Nippon Kayaku Co., Ltd.)
Polymerizable compound 102: A compound having the following structure

Resin 101: Resin having the following structure (Mw = 11000, the numerical value added to the main chain is the molar ratio).

Photopolymerization initiator 101: Irgacure OXE01 (manufactured by BASF)

Surfactant 101: A 1% by mass PGMEA solution of a compound having the following structure (Mw = 14000, the value of% indicating the ratio of repeating units is mol%).

(Example 1002)
A cyan coloring composition was applied onto a silicon wafer by a spin coating method so that the film thickness after film formation was 1.0 μm. Then, using a hot plate, it was heated at 100 ° C. for 2 minutes. Next, using an i-line stepper exposure apparatus FPA-3000i5 + (manufactured by Canon Inc.) ^{, exposure was performed with an exposure amount of 1000 mJ / cm 2} through a mask with a dot pattern of 2 μm square. Next, paddle development was performed at 23 ° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH). Then, it was rinsed with a spin shower and further washed with pure water. Then, the cyan-colored composition was patterned to form cyan-colored pixels by heating at 200 ° C. for 5 minutes using a hot plate. Similarly, the yellow coloring composition and the magenta coloring composition were patterned by the same process to form yellow pixels and magenta color pixels in order to form a color filter having cyan color pixels, yellow pixels and magenta color pixels. .. In this color filter, cyan pixels are formed in a Bayer pattern, and yellow pixels and magenta pixels are formed in an island pattern in an adjacent region thereof. The obtained color filter was incorporated into a solid-state image sensor according to a known method. This solid-state image sensor had a suitable image recognition ability. As the yellow coloring composition, the coloring composition of Y Example 1 was used. The cyan coloring composition and the magenta coloring composition will be described later.

(Preparation of cyan coloring composition and magenta coloring composition)
Mix 230 parts by mass of zirconia beads having a diameter of 0.3 mm by mixing the types of coloring materials listed in the table below, the dispersants listed in the table below, and a part of the solvents listed in the table below. The dispersion treatment was carried out for 5 hours using a paint shaker, and the beads were separated by filtration to produce a pigment dispersion having a solid content of 20% by mass.
Next, the obtained pigment dispersion, the rest of the solvents of the types listed in the table below, the binders of the types listed in the table below, the polymerizable compounds of the types listed in the table below, and the polymerizable compounds listed in the table below. A coloring composition is prepared by mixing various types of photopolymerization initiators, types of ultraviolet absorbers listed in the table below, surfactants of the types listed in the table below, and epoxy compounds of the types listed in the table below. Prepared. The table below shows the blending amount of each component in each coloring composition. The numerical value of the blending amount of each component is a mass part.

The materials indicated by the above abbreviations are as follows.
(Color material)
PB15: 4: C.I. I. Pigment Blue 15: 4
PR122: C.I. I. Pigment Red 122

(Dispersant, binder)
D1: Resin with the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 24000)

D2: Resin having the following structure (the numerical value added to the main chain is the molar ratio. Mw = 11000)

D3: Resin having the following structure (the numerical value added to the main chain is the molar ratio, and the numerical value added to the side chain is the number of repeating units. Mw = 16000)

D4: Efka PX 4300 (BASF, acrylic resin)

(Polymerizable compound)
M1: A mixture of compounds having the following structure (a mixture of a left-side compound (bifunctional (meth) acrylate compound) and a right-side compound (5-functional (meth) acrylate compound) having a molar ratio of 7: 3).

M2: Compound with the following structure

(Photopolymerization initiator)
F1: Irgacure OXE02 (manufactured by BASF)

(UV absorber)
UV1: Compound with the following structure

(Epoxy compound)
G1: EHPE-3150 (manufactured by Daicel Corporation, epoxy compound)

(solvent)
S1: Propylene glycol monomethyl ether acetate (PGMEA)
S2: Propylene glycol monomethyl ether (PGME)

Claims

A coloring composition containing a yellow colorant and a curable compound.
The yellow colorant is represented by the formula (1) with respect to the total number of moles of the structure represented by the formula (1), the structure represented by the formula (2) and the structure represented by the formula (3). Contains colorant A, which has a ratio of the number of moles of the structure to 0.50 to 0.99.
Coloring composition;

In the formula, R 1 to R 6 independently represent a hydrogen atom or a substituent, X 1 represents an atom or an atomic group constituting a ring, and at least one of R 1 to R 6 and X 1 is adjacent to each other. It may include a bond with the atom to be used.
The colorant A has at least one structure selected from a compound having a structure represented by the formula (1), a structure represented by the formula (2), and a structure represented by the formula (3). The coloring composition according to claim 1, which comprises a compound having the above.
The coloring composition according to claim 1 or 2, wherein the colorant A contains a compound having a structure represented by the formula (1) and a compound having a structure represented by the formula (2). ..
The structure represented by the above formula (1) is a structure represented by the following formula (1a).
The structure represented by the above formula (2) is a structure represented by the following formula (2a).
The structure represented by the formula (3) is a structure represented by the following formula (3a).
The coloring composition according to any one of claims 1 to 3.

In the formula, R 1 to R 6 independently represent hydrogen atoms or substituents, and R 9 to R 12 independently represent hydrogen atoms or substituents, respectively, and two adjacent R 9 to R 12 are adjacent to each other. The two groups may be bonded to each other to form a ring, and at least one of R 1 to R 6 and R 9 to R 12 may include a bond with an adjacent atom.
The structure represented by the above formula (1) is a structure represented by the following formula (1b).
The structure represented by the above formula (2) is a structure represented by the following formula (2b).
The structure represented by the formula (3) is a structure represented by the following formula (3b).
The coloring composition according to any one of claims 1 to 3.

Wherein, R 9 ~ R 16 are each independently a hydrogen atom or a substituent, two groups adjacent to each other among R 9 ~ R 16 may form a ring, R 9 ~ At least one of R 16 may include a bond with an adjacent atom.
The coloring composition according to any one of claims 1 to 5, further comprising at least one selected from a red colorant and a green colorant.
The coloring composition according to any one of claims 1 to 6, further comprising an infrared absorber.
The coloring composition according to any one of claims 1 to 7, which is for a color filter or an infrared transmission filter.
A film obtained from the coloring composition according to any one of claims 1 to 8.
An optical filter having the film according to claim 9.
A solid-state image sensor having the film according to claim 9.
An image display device having the film according to claim 9.