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

Abstract

The present invention provides a coloring composition, which contains: a colorant A1, which contains a dye A, and the dye A contains a cationic AX having a pigment structure + and anion AZ ‑ ; and an ionic compound B, which is a cation BX + With anion BZ ‑ The specific absorbance of the ionic compound B at the maximum absorption wavelength in the range of 400 to 700 nm is 5 or less, the total solid content of the coloring composition contains 40% by mass or more of the colorant A1, and the cation AX of the dye A + The molar number of dye A anion AZ ‑ The molar number of the anion BZ of the ionic compound B ‑ The molar number of the dye A satisfies the following relationship. The present invention also provides a film, a color filter, a solid-state imaging element, and an image display device using the coloring composition. 1.05≤{(the anion AZ of the dye A ‑ moles of + anion BZ of ionic compound B ‑ molar number) / cation AX of dye A + The molar number of}≤5.00.

Description

Technical Field

[0001] The present invention relates to a coloring composition containing a dye and also to a film, a color filter, a solid-state imaging element, and an image display device using the coloring composition. Background Art

[0002] In recent years, with the popularization of digital cameras and mobile phones with cameras, the demand for solid-state imaging elements such as charge-coupled devices (CCD) image sensors has increased significantly. Color filters are used as core devices of displays or optical elements. Color filters usually have pixels of the three primary colors of red, green, and blue, and play a role in decomposing transmitted light into the three primary colors.

[0003] Pixels of each color of the color filter are produced using a coloring composition containing a colorant such as a dye.

[0004] Patent Document 1 discloses an invention relating to a coloring composition for color filters containing an acid dye, a binder resin, a predetermined ionic compound having a maximum value of a molar absorption coefficient ε in the visible light region of 0 or more and 3000 or less, and an organic solvent.

[0005] Patent Document 2 discloses an invention relating to a coloring composition comprising: a polymer including at least one repeating unit A having a triarylmethane structure and a repeating unit B having a crosslinking group; a polymerizable compound; and a bis(trifluoromethanesulfonyl)imide salt.

[0006] Previous technical literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Publication No. 2016-133604

[0009] Patent Document 2: International Publication No. 2016 / 136936 Summary of the invention

[0010] Technical issues to be solved by the invention

[0011] In recent years, it has been desired to further reduce the thickness of films used in color filters and the like. In order to achieve thinning while maintaining desired spectral performance, it is necessary to increase the concentration of the colorant in the coloring composition used for film formation.

[0012] The present inventors' research has revealed that, in a coloring composition using a coloring agent containing a dye having cations and anions, when the content of the coloring agent in the total solid content of the coloring composition increases, the solubility of the dye in the solvent decreases and aggregates derived from the dye are easily generated.

[0013] Therefore, an object of the present invention is to provide a coloring composition that suppresses the generation of aggregates derived from dyes, and to provide a film, a color filter, a solid-state imaging element, and an image display device using the coloring composition.

[0014] Means for solving technical problems

[0015] According to the research of the present inventors, it was found that the above-mentioned object can be achieved by setting it as the following structure, and the present invention was completed. Therefore, the present invention provides the following contents.

[0016] <1> A coloring composition comprising: a coloring agent A1 comprising a dye A, wherein the dye A comprises a cation AX having a pigment structure + and anion AZ - ;and

[0017] Ionic compound B, which is a cation BX + With anion BZ - of salt,

[0018] The ionic compound B has a maximum absorption wavelength in the range of 400 to 700 nm and is represented by the following formula (A λ ) is less than 5,

[0019] The coloring composition contains 40% by mass or more of the coloring agent A1 in the total solid content.

[0020] The cation AX of the dye A above + The molar number of the anion AZ of the dye A - The molar number of the anion BZ of the above ionic compound B - The number of moles satisfies the following relationship (1):

[0021] 1.05≤{(anion AZ of dye A - moles of + anion BZ of ionic compound B - molar number) / cation AX of dye A + Number of moles}≤5.00……(1)

[0022] E=A / (c×l)……(A λ )

[0023] Formula (A λ ), E represents the specific absorbance of the ionic compound B at the maximum absorption wavelength in the range of 400 to 700 nm,

[0024] A represents the absorbance of the ionic compound B at the maximum absorption wavelength in the wavelength range of 400 to 700 nm,

[0025] l represents the slot length in cm,

[0026] c represents the concentration of the ionic compound B in the solution expressed in mg / ml.

[0027] <2> The colored composition according to <1>, wherein the colorant A1 contains 5% by mass or more of the dye A.

[0028] <3> The colored composition according to <1> or <2>, wherein the colorant A1 further contains a pigment.

[0029] <4> The colored composition according to any one of <1> to <3>, wherein the cation AX of the dye A + It is a cation containing a xanthene pigment structure.

[0030] <5> The colored composition according to any one of <1> to <4>, wherein the anion AZ of the dye A - It is a methylated anion or an imide anion.

[0031] <6> The colored composition according to any one of <1> to <4>, wherein the anion AZ of the dye A - It is a sulfonyl imide anion.

[0032] <7> The colored composition according to any one of <1> to <6>, wherein in the dye A, the cation AX + and anion AZ - Bonded via covalent bonds.

[0033] <8> The colored composition according to any one of <1> to <7>, wherein the dye A is a pigment multimer.

[0034] <9> The colored composition according to any one of <1> to <8>, wherein the cation BX of the ionic compound B + It is a cation of a typical metal atom of the monomer, a carbocation, an ammonium cation, a phosphonium cation or a sulfonium cation.

[0035] <10> The colored composition according to any one of <1> to <9>, wherein the anion BZ of the ionic compound B - The pKa of the conjugate acid is below 0.

[0036] <11> The colored composition according to any one of <1> to <10>, further comprising a polymerizable compound and a photopolymerization initiator.

[0037] <12> A film obtained using the colored composition according to any one of <1> to <11>.

[0038] <13> A color filter comprising the film according to <12>.

[0039] <14> A solid-state imaging element including the film according to <12>.

[0040] <15> An image display device comprising the film according to <12>.

[0041] Effects of the Invention

[0042] According to the present invention, it is possible to provide a coloring composition that suppresses the generation of aggregates derived from dyes, and to provide a film, a color filter, a solid-state imaging element, and an image display device using the coloring composition. DETAILED DESCRIPTION

[0043] Hereinafter, the contents of the present invention will be described in detail.

[0044] In this specification, "to" is used to mean that the numerical values ​​described before and after it are included as the lower limit and the upper limit.

[0045] In the marking of groups (atomic groups) in this specification, the marking not indicating substituted or unsubstituted includes groups (atomic groups) without substitution and also includes groups (atomic groups) with substitution. For example, "alkyl" includes not only alkyl groups without substitution (unsubstituted alkyl groups) but also alkyl groups with substitution (substituted alkyl groups).

[0046] In this specification, "exposure" includes not only exposure using light, but also drawing using particle beams such as electron beams and ion beams, unless otherwise specified. In addition, examples of light used for exposure include bright line spectrum of mercury lamp, far ultraviolet rays represented by excimer laser, extreme ultraviolet rays (EUV light), X-rays, electron beams and other activating rays or radiation.

[0047] In the present specification, “(meth)acrylate” means both or either acrylate and methyl acrylate, “(meth)acrylic acid” means both or either acrylic acid and methacrylic acid, and “(meth)acryloyl” means both or either acryloyl and methacryloyl.

[0048] 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.

[0049] In this specification, the weight average molecular weight and the number average molecular weight are polystyrene-equivalent values ​​measured by GPC (gel permeation chromatography).

[0050] In this specification, the total solid content refers to the total mass of the components excluding the solvent from all the components of the composition.

[0051] In this specification, a pigment refers to a compound that is difficult to dissolve in a solvent.

[0052] In this specification, a dye refers to a compound that is easily soluble in a solvent.

[0053] In the present specification, the term "step" includes not only an independent step but also a step that achieves the expected effect even if the step cannot be clearly distinguished from other steps.

[0054] <Coloring composition>

[0055] The coloring composition of the present invention is characterized in that it contains:

[0056] Colorant A1, which contains dye A, wherein the dye A contains a cation AX having a pigment structure + and anion AZ - ;and

[0057] Ionic compound B, which is a cation BX + With anion BZ - of salt,

[0058] The ionic compound B has a maximum absorption wavelength in the range of 400 to 700 nm, as represented by the formula (A) described below. λ ) is less than 5,

[0059] The coloring composition contains 40% by mass or more of the coloring agent A1 in the total solid content.

[0060] Dye A cationic AX + The molar number of dye A anion AZ - The molar number of the anion BZ of the ionic compound B - The number of moles satisfies the relationship of the following formula (1).

[0061] 1.05≤{(anion AZ of dye A - moles of + anion BZ of ionic compound B - molar number) / cation AX of dye A + Number of moles}≤5.00……(1)

[0062] In the colored composition of the present invention, even if the colorant is contained in an amount of 40% by mass or more in the total solid content of the colored composition, the generation of aggregates derived from the dye can be suppressed. The reason for obtaining such an effect is presumably as follows.

[0063] Regarding a coloring composition using a coloring agent containing a dye having cations and anions, if the concentration of the coloring agent in the total solid content of the coloring composition is high, the cations of the dyes tend to aggregate due to electrostatic interactions, etc., and as a result, it is presumed that aggregates derived from the dyes tend to be generated. + and anion AZ - In addition to dye A, it also contains cationic BX + With anion BZ - The salt is the ionic compound B, and the cation AX of the dye A + The molar number of dye A anion AZ - The molar number of the anion BZ of the ionic compound B - The molar number satisfies the relationship of the above formula (1), and it can be inferred that the cation AX of dye A + With the anion BZ of the ionic compound B - Becomes more likely to interact and is able to inhibit the cationic AX based on dye A + It is presumed that the generation of aggregates derived from the dye can be suppressed because the aggregation of the dyes is prevented by electrostatic interaction or the like.

[0064] In the coloring composition of the present invention, it is preferred that the cation AX of the dye A is + The molar number of dye A anion AZ - The molar number of the anion BZ of the ionic compound B - The molar number satisfies the relationship of the following formula (2), and more preferably satisfies the relationship of the following formula (3).

[0065] 1.05≤{(anion AZ of dye A - moles of + anion BZ of ionic compound B - molar number) / cation AX of dye A + Number of moles}≤5.00……(2)

[0066] 1.20≤{(anion AZ of dye A - moles of + anion BZ of ionic compound B - molar number) / cation AX of dye A + The number of moles}≤3.00……(3)

[0067] In this specification, the cation AX of dye A + The molar number of the cation AX contained in the dye A can be obtained by + It is calculated by dividing the number by the molecular weight of dye A.

[0068] Furthermore, the cationic AX + In the case of an n-valent (n is 2 or more) cation, the cation AX contained in the dye A can be + The product of the number of AZ and the valence number n of the cation is divided by the molecular weight of dye A. - The molar number of the anion BZ of the ionic compound B - The number of moles can be calculated in the same way.

[0069] The coloring composition of the present invention can be preferably used as a coloring composition for color filters. Specifically, it can be preferably used as a coloring composition for forming colored pixels of color filters. As colored pixels, red pixels, green pixels, blue pixels, magenta pixels, cyan pixels and yellow pixels can be cited. In addition, the resin composition of the present invention can also be preferably used for the pixel structure described in International Publication No. 2019 / 102887. Below, each component used in the coloring composition of the present invention is described.

[0070] <<Coloring Agent>>

[0071] (Dye A)

[0072] The coloring composition of the present invention contains a coloring agent. The coloring agent contained in the coloring composition of the present invention contains a dye A, and the dye A contains a cation AX having a pigment structure. + and anion AZ - .

[0073] The amount of dye A dissolved in 100 g of propylene glycol methyl ether acetate at 25° C. is preferably 0.01 g or more, more preferably 0.5 g or more, and even more preferably 1 g or more.

[0074] In dye A, anion AZ - Can be present in cationic AX + However, from the perspective of being able to more significantly obtain the effects of the present invention, it is preferred to covalently bond with the cation AX + That is, it is preferred that the dye A has a cation AX in one molecule. + and anion AZ - Intramolecular salt compound. In addition, the anion AZ - Present in cationic AX + The cation AZ - With anion AX + The anion outside the cation molecule is also referred to as a counter anion.

[0075] As the anion AZ of dye A -, and is not particularly limited. Examples include fluoride anions, chloride anions, bromide anions, iodide anions, cyanide anions, perchlorate anions, carboxylate anions, sulfonate anions, anions containing phosphorus atoms, imide anions, methylated anions, borate anions, SbF 6 - The anion of the present invention is preferably an acylide anion, a methylated anion and a borate anion, and the acylide anion and the methylated anion are more preferred. The acylide anion is further preferred for reasons such as low nucleophilicity. As the acylide anion, the bis(sulfonyl)acylide anion is preferred. As the methylated anion, the tri(sulfonyl)methylated anion is preferred. As the borate anion, tetraaryl borate anion, tetracyanoborate anion, tetrafluoroborate anion, etc. can be cited.

[0076] Cationic AX as Dye A + , xanthene pigment structure, triarylmethane pigment structure, cyanine pigment structure and squarylium pigment structure can be cited, and xanthene pigment structure and triarylmethane pigment structure are preferred. From the reasons of easy and more significant effect of the present invention, xanthene pigment structure is further preferred. It can be inferred that this is because the molecular planarity of the xanthene pigment structure is well compatible with the ionic compound B.

[0077] As a cationic AX having a xanthene pigment structure + Examples of dyes include compounds represented by the following formula (J).

[0078] Formula (J)

[0079] [Chemical formula 1]

[0080]

[0081] In formula (J), R 81 , R 82 , R 83 and R 84 Each independently represents a hydrogen atom or a substituent, R 85 Each independently represents a substituent, and m represents an integer of 0 to 5. Z represents a counter anion. When Z is absent, R 81 ~R 85 At least one of the molecules contains an anion.

[0082] R in formula (J) 81 ~R 85 The substituent that can be substituted includes the groups or polymerizable groups exemplified in the substituent T described below. 81 With R 82 , R 83 With R 84 and R when m is 2 or more 85They are independently bonded to each other to form a 5-, 6- or 7-membered saturated ring or a 5-, 6- or 7-membered unsaturated ring. Examples of the ring formed include a pyrrole ring, a furan ring, a thiophene ring, a pyrazole ring, an imidazole ring, a triazole ring, an oxazole ring, a thiazole ring, a pyrrolidine ring, a piperidine ring, a cyclopentene ring, a cyclohexene ring, a benzene ring, a pyridine ring, a pyrazine ring, and a pyridazine ring, preferably a benzene ring and a pyridine ring. When the ring formed is a further substitutable group, it can be substituted by R 81 ~R 85 When the described substituent is substituted by two or more substituents, these substituents may be the same or different.

[0083] In formula (J), Z represents a counter anion. Examples of the counter anion include fluoride anion, chloride anion, bromide anion, iodide anion, cyanide ion, perchlorate anion, carboxylate anion, sulfonate anion, anion containing a phosphorus atom, imide anion, methylated anion, borate anion, SbF 6 - etc., preferably imide anion, methylated anion and borate anion, more preferably imide anion and methylated anion, further preferably imide anion. As imide anion, bis(sulfonyl)imide anion is preferred. As methylated anion, tris(sulfonyl)methylated anion is preferred. As borate anion, tetraaryl borate anion, tetracyanoborate anion, tetrafluoroborate anion, etc. can be cited. The molecular weight of the relative anion is preferably 100 to 1000, more preferably 200 to 500.

[0084] In formula (J), R 81 ~R 85 When at least one of the anions contains an anion, as the anion, carboxylic acid anion, sulfonic acid anion, an anion containing a phosphorus atom, imide anion, methylated anion and borate anion are preferred, imide anion, methylated anion and borate anion are more preferred, imide anion and methylated anion are further preferred, and imide anion is particularly preferred. As the imide anion, bis(sulfonyl)imide anion is preferred. As the methylated anion, tris(sulfonyl)methylated anion is preferred. Specifically, R is preferred 81 ~R 85 At least one of them is a group including a partial structure represented by the following formula (AZ-1) or a group including a partial structure represented by the following formula (AZ-2), and more preferably a group including a partial structure represented by formula (AZ-1).

[0085] [Chemical formula 2]

[0086]

[0087] The wavy lines in the above formula represent bonds to other atoms or atomic groups.

[0088] R 81 ~R 85 When at least one of the 81 ~R 85 It is also preferred that at least one of the structures is substituted with the structure of formula (P-1).

[0089] [Chemical formula 3]

[0090]

[0091] In formula (P-1), L 1 represents a single bond or a divalent linking group, preferably a single bond. 1 Examples of the divalent linking group represented by include an alkylene group having 1 to 6 carbon atoms, an arylene group having 6 to 12 carbon atoms, -O-, -S-, or a combination of these. 2 Indicates -SO 2 - or -CO-. G represents a carbon atom or a nitrogen atom. n1 represents 2 when G represents a carbon atom and represents 1 when G represents a nitrogen atom. R 6 represents an alkyl group containing a fluorine atom or an aryl group containing a fluorine atom. When n1 is 2, two R 6 They may be the same or different. 6 The number of carbon atoms in the fluorine-containing alkyl group represented by is preferably 1 to 10, more preferably 1 to 6, and still more preferably 1 to 3. 6 The number of carbon atoms of the fluorine-containing aryl group represented is preferably 6 to 20, more preferably 6 to 14, and still more preferably 6 to 10. The fluorine-containing alkyl group and the fluorine-containing aryl group may further have a substituent. Examples of the substituent include a substituent group T or a polymerizable group.

[0092] Furthermore, as a cation AX having a xanthene pigment structure + Examples of dyes include CIAcid red 51, CIAcid red 52, CIAcid red 87, CIAcid red 92, CIAcid red 94, CIAcid red 289, CIAcid red 388, rose Bengal B (edible red No. 5), Acid Rhodamine G, CIAcid Violet 9, CIAcid Violet 9, and CIAcid Violet 30.

[0093] As a cation AX having a triarylmethane structure+ Examples of dyes include compounds represented by the following formula (TP).

[0094] Formula (TP)

[0095] [Chemical formula 4]

[0096]

[0097] In formula (TP), Rtp 1 ~Rtp 4 Each independently represents a hydrogen atom, an alkyl group or an aryl group. 5 represents a hydrogen atom, an alkyl group, an aryl group, or NRtp 9 Rt 10 (Rtp 9 and Rtp 10 represents a hydrogen atom, an alkyl group or an aryl group). Rtp 6 , Rtp 7 and Rtp 8 represents a substituent. a, b and c represent an integer from 0 to 4. When a, b and c are 2 or more, Rtp 6 Each other, Rtp 7 Each other and Rtp 8 Each of them can be connected to form a ring. Z represents a relative anion. In the absence of Z, Rtp 1 ~Rtp 8 At least one of the molecules contains an anion.

[0098] Rt 1 ~Rtp 4 Preferred are a hydrogen atom, a linear or branched alkyl group having 1 to 5 carbon atoms, and a phenyl group. 5 Preferably hydrogen atom or NRtp 9 Rt 10 NRtp is particularly preferred 9 Rt 10 . Rtp 9 and Rtp 10 Preferred are hydrogen atoms, linear or branched alkyl groups having 1 to 5 carbon atoms, and phenyl groups. 6 , Rtp 7 and Rtp 8 Examples of the substituent represented include the groups listed in the substituent group T group described later or polymerizable groups.

[0099] In formula (TP), Z represents a counter anion. In the absence of Z, Rtp 1 ~Rtp 8 At least one of them contains an anion. As the counter anion, the counter anion described in the above formula (J) can be cited. And, in formula (TP), Rtp1 ~Rtp 8 When at least one of the above-mentioned compounds contains an anion, examples of the anion include the anions described in the above-mentioned formula (J).

[0100] (Substituent T group)

[0101] As the substituent group T, the following groups can be mentioned. Alkyl (preferably an alkyl group having 1 to 30 carbon atoms), alkenyl (preferably an alkenyl group having 2 to 30 carbon atoms), alkynyl (preferably an alkynyl group having 2 to 30 carbon atoms), aryl (preferably an aryl group having 6 to 30 carbon atoms), amino (preferably an amino group having 0 to 30 carbon atoms), alkoxy (preferably an alkoxy group having 1 to 30 carbon atoms), aryloxy (preferably an aryloxy group having 6 to 30 carbon atoms), heteroaryloxy, acyl (preferably an acyl group having 1 to 30 carbon atoms), alkoxycarbonyl (preferably an alkoxycarbonyl group having 2 to 30 carbon atoms), aryloxycarbonyl (preferably an aryloxycarbonyl group having 7 to 30 carbon atoms), acyloxy (preferably an acyloxy group having 2 to 30 carbon atoms), acylamino (preferably an amide group having 2 to 30 carbon atoms), alkoxycarbonylamino (preferably an alkoxycarbonylamino group having 2 to 30 carbon atoms), aryloxycarbonylamino (preferably an aryloxycarbonylamino group having 7 to 30 carbon atoms), sulfonamide (preferably a sulfonyl group having 0 to 30 carbon atoms), a carbamoyl group (preferably a carbamoyl group having 1 to 30 carbon atoms), an alkylthio group (preferably an alkylthio group having 1 to 30 carbon atoms), an arylthio group (preferably an arylthio group having 6 to 30 carbon atoms), a heteroarylthio group (preferably a carbon atom number of 1 to 30), an alkylsulfonyl group (preferably a carbon atom number of 1 to 30), an arylsulfonyl group (preferably a carbon atom number of 6 to 30), a heteroarylsulfonyl group (preferably a carbon atom number of 1 to 30), an alkyl Sulfinyl group (preferably carbon number 1-30), arylsulfinyl group (preferably carbon number 6-30), heteroarylsulfinyl group (preferably carbon number 1-30), urea group (preferably carbon number 1-30), hydroxyl group, carboxyl group, sulfonic acid group, phosphoric acid group, carboxylic acid amide group, sulfonic acid amide group, imidic acid group, mercapto group, halogen atom, cyano group, alkylsulfinic acid group, arylsulfinic acid group, hydrazine group, imino group, heteroaryl group (preferably carbon number 1-30). When these groups are further substitutable groups, they may further have a substituent. As the substituent, the group described as the above-mentioned substituent T, a polymerizable group, etc. can be mentioned.

[0102] Examples of the polymerizable group possessed by the dye A include groups containing an ethylenically unsaturated bond such as a vinyl group, an allyl group, and a (meth)acryloyl group, and cyclic ether groups such as an epoxy group and an oxetanyl group.

[0103] The dye A is preferably a compound having a polymerizable group because it is easy to obtain a film having a high crosslinking density and excellent various properties. Examples of the polymerizable group include groups containing an ethylenically unsaturated bond such as a vinyl group, an allyl group, and a (meth)acryloyl group.

[0104] From the reason of easily reducing the generation of residue during development, dye A is also preferably a pigment polymer. Pigment polymer refers to a pigment compound having more than 2 pigment structures in one molecule, preferably having more than 3 pigment structures. The upper limit is not particularly limited, but can also be set to less than 100. The pigment structures in one molecule can be the same pigment structure or different pigment structures.

[0105] The weight average molecular weight (Mw) of the dye multimer is preferably 2000 to 50000. The lower limit is more preferably 3000 or more, and further preferably 6000 or more. The upper limit is more preferably 30000 or less, and further preferably 20000 or less.

[0106] As the structure of the pigment multimer, the pigment multimers (A) to (D) described in paragraphs 0047 to 0103 of International Publication No. 2016 / 208524 can be cited. As the pigment multimer, a pigment multimer having a repeating unit represented by the formula (A) described later and a pigment multimer represented by the formula (D) described later are preferred. Hereinafter, the pigment multimer having a repeating unit represented by the formula (A) is also referred to as a pigment multimer (A). Furthermore, the pigment multimer represented by the formula (D) is also referred to as a pigment multimer (D).

[0107] (Pigment polymer (A))

[0108] Preferably, pigment multimer (A) contains the repeating unit represented by formula (A). The ratio of the repeating unit represented by formula (A) preferably constitutes more than 10 mass % of the total repeating unit of pigment multimer (A), more preferably more than 20 mass %, further preferably more than 30 mass %, especially preferably more than 50 mass %. The upper limit can also be set to below 100 mass %, and can also be set to below 95 mass %.

[0109] [Chemical formula 5]

[0110]

[0111] In formula (A), X 1 represents the main chain of the repeating unit, L 1 represents a single bond or a divalent linking group, D 1 This indicates a structure derived from a pigment compound containing a cation and an anion having a pigment structure.

[0112] As X of formula (A) 1The main chain of the repeating unit represented by the above-mentioned may include a linking group formed by a polymerization reaction, and preferably a main chain of a compound having a (meth)acryloyl group, a styryl group, a vinyl group or an ether group. As a specific example of the linking group, the linking groups represented by (XX-1) to (XX-30) described in paragraph 0049 of International Publication No. 2016 / 208524 may be mentioned.

[0113] L 1 represents a single bond or a divalent linking group. 1 Examples of the divalent linking group represented by include an alkylene group having 1 to 30 carbon atoms, an arylene group having 6 to 30 carbon atoms, a heterocyclic linking group, -CH=CH-, -O-, -S-, -C(=O)-, -COO-, -NR-, -CONR-, -OCO-, -SO-, -SO 2 - and a linking group formed by connecting two or more of these. Wherein, R represents a hydrogen atom, an alkyl group, an aryl group or a heteroaryl group.

[0114] The number of carbon atoms of the alkylene group is preferably 1 to 30. The upper limit is more preferably 25 or less, and further preferably 20 or less. The lower limit is more preferably 2 or more, and further preferably 3 or more. The alkylene group may be any of a linear, branched, or cyclic group. The alkylene group may have a substituent or may be unsubstituted. As the substituent, the groups described in the substituent group T group can be cited.

[0115] The number of carbon atoms in the arylene group is preferably 6 to 20, more preferably 6 to 12. The arylene group may have a substituent or may be unsubstituted. Examples of the substituent include the groups described in the substituent group T group.

[0116] The heterocyclic linking group is preferably a 5-membered ring or a 6-membered ring. The heteroatom possessed by the heterocyclic linking group is preferably an oxygen atom, a nitrogen atom and a sulfur atom. The number of heteroatoms possessed by the heterocyclic linking group is preferably 1 to 3. The heterocyclic linking group may have a substituent or may be unsubstituted. As the substituent, the groups described in the substituent group T group can be cited.

[0117] D 1 It represents the structure derived from the pigment compound containing the cation and anion having the pigment structure. As for the cation and anion having the pigment structure, the cation AX mentioned above can be cited. + 、Anion AZ - The cations and anions described have pigment structures. 1 Preferred are the structure derived from the compound represented by the above formula (J) and the structure derived from the compound represented by the above formula (TP).

[0118] Pigment polymer (A) can also contain other repeating units except containing the repeating unit represented by formula (A).Other repeating units can contain functional groups such as polymerizable groups or acid groups, and also can not contain these functional groups.As polymerizable groups, groups containing ethylenic unsaturated bonds such as vinyl, (meth) acryloyl groups etc. can be enumerated.As acid groups, carboxyl, sulfonic acid group, phosphoric acid group can be enumerated.

[0119] The ratio of the repeating unit having a polymerizable group is preferably 0 to 50% by mass of the total repeating units constituting the dye multimer (A). The lower limit is preferably 1% by mass or more, more preferably 3% by mass or more, and the upper limit is preferably 35% by mass or less, more preferably 30% by mass or less.

[0120] The ratio of repeating units having an acid group is preferably 0 to 50% by mass of the total repeating units constituting the dye multimer (A). The lower limit is preferably 1% by mass or more, more preferably 3% by mass or more, and the upper limit is preferably 35% by mass or less, more preferably 30% by mass or less.

[0121] (Pigment polymer (D))

[0122] The dye multimer (D) is preferably represented by formula (D).

[0123] [Chemical formula 6]

[0124]

[0125] In formula (D), L 4 represents a (n+k)-valent linking group, L 41 and L 42 Each independently represents a single bond or a divalent linking group, D 4 Indicates the structure of a pigment compound containing cations and anions having a pigment structure, P 4 represents a substituent; n represents 2 to 15, k represents 0 to 13, and n+k represents 2 to 15. n D 4 They may be different from each other or the same. When k is 2 or more, multiple P 4 They can be different from each other or the same.

[0126] n is preferably 2 to 14, more preferably 2 to 8, particularly preferably 2 to 7, and further preferably 2 to 6. k is preferably 1 to 13, more preferably 1 to 10, further preferably 1 to 8, and particularly preferably 1 to 7 and 1 to 6.

[0127] L 41 , L 42Each independently represents a single bond or a divalent linking group. As a divalent linking group, a group consisting of 1 to 100 carbon atoms, 0 to 10 nitrogen atoms, 0 to 50 oxygen atoms, 1 to 200 hydrogen atoms and 0 to 20 sulfur atoms may be unsubstituted or may contain a substituent. As a specific example, the divalent linking group can include the following structural units or groups composed of a combination of 2 or more structural units.

[0128] [Chemical formula 7]

[0129]

[0130] As L 4 The (n+k)-valent linking group represented includes a group consisting of 1 to 100 carbon atoms, 0 to 10 nitrogen atoms, 0 to 50 oxygen atoms, 1 to 200 hydrogen atoms, and 0 to 20 sulfur atoms. As the (n+k)-valent linking group, the following structural units or groups consisting of a combination of 2 or more structural units can be cited (which may form a ring structure).

[0131] [Chemical formula 8]

[0132]

[0133] Specific examples of the (n+k)-valent linking group include the linking groups described in paragraph 0084 of International Publication No. 2016 / 208524.

[0134] D 4 It represents the structure derived from the pigment compound containing the cation and anion having the pigment structure. As for the cation and anion having the pigment structure, the cation AX mentioned above can be cited. + 、Anion AZ - The cations and anions described have pigment structures. 4 Preferred are the structure derived from the compound represented by the above formula (J) and the structure derived from the compound represented by the above formula (TP).

[0135] As P 4 The substituent represented by may include an acid group, a polymerizable group, and the like. 4 The substituent represented by may be a monovalent polymer chain having a repeating unit. The monovalent polymer chain having a repeating unit preferably has a monovalent polymer chain having a repeating unit derived from a vinyl compound. When k is 2 or more, k P 4 It can be the same or different.

[0136] (pigment)

[0137] The coloring agent contained in the coloring composition of the present invention preferably contains a pigment in addition to the dye A. By using the dye A and the pigment together, the generation of development residue can be suppressed when a pattern (pixel) is formed by photolithography using the coloring composition.

[0138] The pigment may be any of an inorganic pigment and an organic pigment, but an organic pigment is preferred. In addition, a material in which a part of an inorganic pigment or an organic-inorganic pigment is replaced by an organic chromophore may also be used as the pigment. By replacing an inorganic pigment or an organic-inorganic pigment by an organic chromophore, hue design can be easily performed.

[0139] 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 further preferably 100 nm or less. If the average primary particle size of the pigment is within the above range, the dispersion stability of the pigment in the coloring composition is good. In addition, in the present invention, the primary particle size of the pigment can be observed by a transmission electron microscope and obtained based on the image photograph. Specifically, the projected area of ​​the primary particles of the pigment is obtained, and the equivalent circle diameter corresponding to it is calculated as the primary particle size of the pigment. In addition, the average primary particle size in the present invention is set to the arithmetic mean of the primary particle sizes of 400 primary particles of the pigment. In addition, the primary particles of the pigment refer to independent particles that are not agglomerated.

[0140] The amount of the pigment dissolved in 100 g of propylene glycol methyl ether acetate at 25° C. is preferably less than 0.01 g, more preferably less than 0.005 g, and even more preferably less than 0.001 g.

[0141] Examples of organic pigments include phthalocyanine pigments, dioxazine pigments, quinacridone pigments, anthraquinone pigments, perylene pigments, azo pigments, diketopyrrolopyrrole pigments, pyrrolopyrrole pigments, isoindoline pigments, quinophthalone pigments, triarylmethane pigments, xanthene pigments, methine pigments, and quinoline pigments. Specific examples of organic pigments include the following.

[0142] 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, 1 37, 138, 139, 147, 148, 150, 151, 152, 153, 154, 155, 156, 161, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 179, 180, 181, 182, 185, 187, 188, 193, 194, 199, 213, 214, 215, 228, 231, 232 (methine series), 233 (quinoline series), 234 (aminoketone series), 235 (aminoketone series), 236 (aminoketone series), etc. (the above are yellow pigments),

[0143] CI 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 are orange pigments),

[0144] CIPigment 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, 14 9, 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 series, Organo Ultramarine (organic ultramarine), Bluish Red (blue red)), 295 (monoazo series), 296 (diazo series), 297 (amino ketone), etc. (the above are red pigments),

[0145] CI Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, 64 (phthalocyanine), 65 (phthalocyanine), 66 (phthalocyanine), etc. (the above are green pigments),

[0146] CI Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60 (triarylmethane series), 61 (xanthene series), etc. (the above are purple pigments),

[0147] CI 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 series), 88 (methine series), etc. (the above are blue pigments).

[0148] Furthermore, as a green pigment, a zinc phthalocyanine halogenide pigment having an average of 10 to 14 halogen atoms, an average of 8 to 12 bromine atoms, and an average of 2 to 5 chlorine atoms in one molecule can also be used. As a specific example, the compounds described in International Publication No. 2015 / 118720 can be cited. Furthermore, as a green pigment, compounds described in the specification of Chinese Patent Application No. 106909027, phthalocyanine compounds having a phosphate ester as a ligand described in International Publication No. 2012 / 102395, phthalocyanine compounds described in Japanese Patent Application Publication No. 2019-008014, phthalocyanine compounds described in Japanese Patent Application Publication No. 2018-180023, and compounds described in Japanese Patent Application Publication No. 2019-038958 can also be used.

[0149] Furthermore, an aluminum phthalocyanine compound having a phosphorus atom can also be used as a blue pigment, and specific examples thereof include compounds described in paragraphs 0022 to 0030 of JP-A-2012-247591 and paragraph 0047 of JP-A-2011-157478.

[0150] As yellow pigments, compounds described in Japanese Patent Application Laid-Open No. 2017-201003, compounds described in Japanese Patent Application Laid-Open No. 2017-197719, compounds described in paragraphs 0011 to 0062 and 0137 to 0276 of Japanese Patent Application Laid-Open No. 2017-171912, compounds described in paragraphs 0010 to 0062 and 0138 to 0295 of Japanese Patent Application Laid-Open No. 2017-171913, compounds described in paragraphs 0011 to 0062 and 0139 to 0190 of Japanese Patent Application Laid-Open No. 2017-171914, compounds described in paragraphs 0010 to 0065 and 0142 to 022 of Japanese Patent Application Laid-Open No. 2017-171915, The compounds described in paragraphs 2, quinophthalone compounds described in paragraphs 0011 to 0034 of Japanese Patent Publication No. 2013-054339, quinophthalone compounds described in paragraphs 0013 to 0058 of Japanese Patent Publication No. 2014-026228, isoindoline compounds described in Japanese Patent Publication No. 2018-062644, quinophthalone compounds described in Japanese Patent Publication No. 2018-203798, quinophthalone compounds described in Japanese Patent Publication No. 2018-062578, quinophthalone compounds described in Japanese Patent No. 6432076, quinophthalone compounds described in Japanese Patent Publication No. 2018-155881, quinophthalone compounds described in Japanese Patent Publication No. 2018- Quinophthalone compounds described in Japanese Patent Publication No. 111757, quinophthalone compounds described in Japanese Patent Publication No. 2018-040835, quinophthalone compounds described in Japanese Patent Publication No. 2017-197640, quinophthalone compounds described in Japanese Patent Publication No. 2016-145282, quinophthalone compounds described in Japanese Patent Publication No. 2014-085565, quinophthalone compounds described in Japanese Patent Publication No. 2014-021139, quinophthalone compounds described in Japanese Patent Publication No. 2013-209614, quinophthalone compounds described in Japanese Patent Publication No. 2013-209435, quinophthalone compounds described in Japanese Patent Publication No. 2013-181015 Quinophthalone compounds described in JP-A-2013-061622, quinophthalone compounds described in JP-A-2013-032486, quinophthalone compounds described in JP-A-2012-226110, quinophthalone compounds described in JP-A-2008-074987, quinophthalone compounds described in JP-A-2008-081565, quinophthalone compounds described in JP-A-2008-074986, quinophthalone compounds described in JP-A-2008-074985, quinophthalone compounds described in JP-A-2008-050420,A quinophthalone compound described in Japanese Patent Publication No. 2008-031281, a quinophthalone compound described in Japanese Patent Publication No. 48-032765, a quinophthalone compound described in Japanese Patent Publication No. 2019-008014, a compound represented by the following formula (QP1), a compound represented by the following formula (QP2).

[0151] [Chemical formula 9]

[0152]

[0153] In formula (QP1), X 1 ~X 16 Each independently represents a hydrogen atom or a halogen atom, and Z 1 represents an alkylene group having 1 to 3 carbon atoms. Specific examples of the compound represented by the formula (QP1) include compounds described in paragraph 0016 of Japanese Patent No. 6443711.

[0154] [Chemical formula 10]

[0155]

[0156] In formula (QP2), Y 1 ~Y 3 Each independently represents a halogen atom. n and m represent integers of 0 to 6, and p represents an integer of 0 to 5. (n+m) is 1 or more. Specific examples of the compound represented by formula (QP2) include compounds described in paragraphs 0047 to 0048 of Japanese Patent No. 6432077.

[0157] As the red pigment, the diketopyrrolopyrrole compound in which at least one bromine atom is substituted in the structure as described in Japanese Patent Application Publication No. 2017-201384, the diketopyrrolopyrrole compound described in paragraphs 0016 to 0022 of Japanese Patent No. 6248838, the diketopyrrolopyrrole compound described in International Publication No. 2012 / 102399, the diketopyrrolopyrrole compound described in International Publication No. 2012 / 117965, the naphthol azo compound described in Japanese Patent Application Publication No. 2012-229344, the red pigment described in Japanese Patent No. 6516119, the red pigment described in Japanese Patent No. 6525101, etc. can also be used. Furthermore, as the red pigment, a compound having a structure in which an aromatic ring group into which a group in which an oxygen atom, a sulfur atom or a nitrogen atom is bonded to an aromatic ring is bonded to a diketopyrrolopyrrole skeleton can be used.

[0158] As dye A, cation AX having a xanthene pigment structure was used. +Dyes or cationic AX with triarylmethane structure + In the case of dyes, phthalocyanine pigments, dioxazine pigments and triarylmethane pigments are preferred as pigments used in combination because of their high planarity and large interaction with ionic compounds. Specific examples include CI Pigment Violet 23, CI Pigment Blue 15:3, 15:4, 15:6, 16, etc.

[0159] The content of the colorant is 40% by mass or more, preferably 50% by mass or more, and more preferably 60% by mass or more in the total solid content of the coloring composition. The upper limit is preferably 70% by mass or less.

[0160] The content of dye A is preferably 5% by mass or more, more preferably 8% by mass or more, further preferably 10% by mass or more, and particularly preferably 15% by mass or more in the total solid content of the coloring composition. The upper limit is preferably 70% by mass or less, more preferably 60% by mass or less, further preferably 50% by mass or less, further preferably 40% by mass or less, and further preferably 30% by mass or less.

[0161] The content of the dye A in the coloring agent contained in the coloring composition is preferably 5% by mass or more, more preferably 10% by mass or more, and further preferably 15% by mass or more. The upper limit is preferably 90% by mass or less, more preferably 80% by mass or less, further preferably 70% by mass or less, further preferably 60% by mass or less, further preferably 50% by mass or less, and particularly preferably 40% by mass or less.

[0162] When dye A and pigment are used as colorants, it is preferred that 10 to 500 parts by mass of pigment be contained relative to 100 parts by mass of dye A. The lower limit is preferably 50 parts by mass or more, more preferably 100 parts by mass or more, further preferably 130 parts by mass or more, and particularly preferably 150 parts by mass or more. The upper limit is preferably 230 parts by mass or less, further preferably 200 parts by mass or less.

[0163] <<Ionic compound B>>

[0164] The coloring composition of the present invention contains a cationic BX + With anion BZ - The salt is ionic compound B.

[0165] The ionic compound B has a maximum absorption wavelength in the range of 400 to 700 nm and is represented by the following formula (A λ ) is 5 or less, preferably 3 or less, and more preferably 1 or less.

[0166] E=A / (c×l)……(A λ )

[0167] Formula (A λ ), E represents the specific absorbance of the ionic compound B at the maximum absorption wavelength in the range of 400 to 700 nm,

[0168] A represents the absorbance of the ionic compound B at the maximum absorption wavelength in the wavelength range of 400 to 700 nm,

[0169] l represents the slot length in cm,

[0170] c represents the concentration of the ionic compound B in the solution expressed in mg / ml.

[0171] Regarding the method for measuring the specific absorbance of the ionic compound B, the following method can be cited: a measurement solution is prepared using a solvent having sufficient solubility for the ionic compound B, and the absorbance of the solution at 25°C is measured using a cell with a light path length of 1 cm. The solvent for measuring the specific absorbance can appropriately utilize a solvent having sufficient solubility for the ionic compound B. Preferred solvents include water, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, dimethyl sulfoxide, acetone, methanol, and the like. When the ionic compound B has sufficient solubility in water, water is used as the solvent.

[0172] The molecular weight of the ionic compound B is preferably 80 to 5000. The upper limit is preferably 3000 or less, more preferably 2000 or less, further preferably 1500 or less, and particularly preferably 1210 or less. The lower limit is preferably 100 or more, more preferably 200 or more. When the molecular weight of the ionic compound B is within the above range, the effect of the present invention is significantly obtained.

[0173] As anion BZ in ionic compound B - , examples include imide anions, methylated anions, borate anions, anions containing phosphorus atoms, sulfonic acid anions, etc., preferably imide anions, methylated anions and borate anions, more preferably imide anions and methylated anions, and further preferably imide anions.

[0174] Anion BZ of ionic compound B - The pKa of the conjugate acid is preferably 0 or less, more preferably -5 or less, further preferably -8 or less, further preferably -10 or less, and particularly preferably -10.5 or less. The lower limit is not particularly limited, but can be set to more than -20, and can also be set to more than -18. The pKa of the conjugate acid can be measured by the method described in, for example, J.Org.Chem.2011, 76, 391-395.

[0175] Anion BZ -Preferred are anions having a partial structure represented by the following formula (BZ-1), anions having a partial structure represented by the following formula (BZ-2), anions represented by the following formula (BZ-3), anions represented by the following formula (BZ-4) and anions represented by the following formula (BZ-5). More preferred are at least one selected from anions having a partial structure represented by the following formula (BZ-1), anions having a partial structure represented by the following formula (BZ-2) and anions represented by the following formula (BZ-3). Further preferred are anions having a partial structure represented by the following formula (BZ-1) and anions having a partial structure represented by the following formula (BZ-2). The anion having a partial structure represented by the following formula (BZ-1) is an imide anion, the anion having a partial structure represented by the following formula (BZ-2) is a methylated anion, the anion represented by the following formula (BZ-3) is a borate anion, the anion represented by the following formula (BZ-4) is a sulfonate anion, and the anion represented by the following formula (BZ-5) is an anion containing a phosphorus atom.

[0176] [Chemical formula 11]

[0177]

[0178] In formula (BZ-1), R 111 and R 112 Respectively represent -SO 2 -or-CO-;

[0179] In formula (BZ-2), R 113 Indicates -SO 2 -or-CO-, R 114 and R 115 Respectively represent -SO 2 -, -CO- or cyano;

[0180] In formula (BZ-3), R 116 ~R 119 Each independently represents a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group or a cyano group.

[0181] In formula (BZ-4), R 120 It represents a halogenated hydrocarbon group which may be linked via a linking group having a nitrogen atom or an oxygen atom.

[0182] In formula (BZ-5), R 121 ~R 126 Each independently represents a halogen atom or a halogenated hydrocarbon group.

[0183] In formula (BZ-1), R is preferably 111 and R 112 At least one of the -SO 2 -, more preferably R111 and R 112 These two mean -SO 2 -.

[0184] It is preferred that an anion having a partial structure represented by (BZ-1) be present in R 111 and R 112 At least one terminal of the alkyl group has a halogen atom or an alkyl group having a halogen atom as a substituent (haloalkyl group), and more preferably has a fluorine atom or an alkyl group having a fluorine atom as a substituent (fluoroalkyl group). The number of carbon atoms in the fluoroalkyl group is preferably 1 to 10, more preferably 1 to 6, and further preferably 1 to 3. The fluoroalkyl group is more preferably a perfluoroalkyl group.

[0185] In (BZ-2), R 113 ~R 115 At least one representation of -SO 2 -, more preferably R 113 ~R 115 At least 2 of the following represent -SO 2 , further preferably R 113 ~R 115 All representations of -SO 2 - or R 113 and R 115 Indicates -SO 2 - and R 114 Indicates -CO- or R 114 and R 115 Indicates -SO 2 - and R 113 represents -CO-, and R 113 ~R 115 All representations of -SO 2 -.

[0186] It is preferred that an anion having a partial structure represented by (BZ-2) be present in R 113 ~R 115 At least one terminal of the group has a halogen atom or an alkyl group having a halogen atom as a substituent (haloalkyl group), and more preferably has a fluorine atom or an alkyl group having a fluorine atom as a substituent (fluoroalkyl group). In particular, it is preferred that R 113 ~R 115 At least two terminals of the fluoroalkyl group have a halogen atom or a haloalkyl group, more preferably a fluorine atom or a fluoroalkyl group. The number of carbon atoms in the fluoroalkyl group is preferably 1 to 10, more preferably 1 to 6, and further preferably 1 to 3. The fluoroalkyl group is more preferably a perfluoroalkyl group.

[0187] In formula (BZ-3), R 116 ~R 119Each independently represents a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group or a cyano group. The alkyl group, the aryl group, the alkoxy group and the aryloxy group may have a substituent or may be unsubstituted. In the case of having a substituent, a halogen atom or an alkyl group substituted with a halogen atom is preferred, and a fluorine atom or an alkyl group substituted with a fluorine atom is more preferred. In formula (BZ-3), R is preferably 116 ~R 119 At least one of them represents a cyano group, a halogen atom, an alkyl group having a halogen atom as a substituent, an aryl group having a halogen atom as a substituent, or an aryl group having an alkyl group substituted with a halogen atom as a substituent, and more preferably R 116 ~R 119 All of the above represent a cyano group or an aryl group having a halogen atom (preferably a fluorine atom) as a substituent.

[0188] In formula (BZ-4), R 120 It represents a halogenated hydrocarbon group that can be connected through a linking group having a nitrogen atom or an oxygen atom. A halogenated hydrocarbon group refers to a monovalent hydrocarbon group substituted by a halogen atom, preferably a monovalent hydrocarbon group substituted by a fluorine atom. Examples of the hydrocarbon group include an alkyl group and an aryl group. The monovalent hydrocarbon group substituted by a halogen atom may also have a substituent. Examples of the linking group having a nitrogen atom or an oxygen atom include -O-, -CO-, -COO-, -CO-NH-, etc.

[0189] In formula (BZ-5), R 121 ~R 126 R each independently represents a halogen atom or a halogenated hydrocarbon group. 121 ~R 126 The halogenated hydrocarbon group represented is preferably an alkyl group having a halogen atom as a substituent, and more preferably an alkyl group having a fluorine atom as a substituent.

[0190] The anion having the partial structure represented by the above-mentioned (BZ-1) is preferably an anion represented by the following formula (BZ1-1). Also, the anion having the partial structure represented by the above-mentioned (BZ-2) is preferably an anion represented by the following formula (BZ2-1).

[0191] [Chemical formula 12]

[0192]

[0193] In formula (BZ1-1), R 211 and R 212 Each independently represents a halogen atom or an alkyl group, R 211 and R 212 When each independently represents an alkyl group, R 211 With R 212 can bond to form rings;

[0194] In formula (BZ2-1), R 213 ~R 215 Each independently represents a halogen atom or an alkyl group, R 213 and R 214 When each independently represents an alkyl group, R 213 With R 214 Can bond to form a ring, R 214 and R 215 When each independently represents an alkyl group, R 214 With R 215 Can bond to form a ring, R 213 and R 215 When each independently represents an alkyl group, R 213 With R 215 can bond to form rings;

[0195] In formula (BZ1-1), R 211 and R 212 Each independently represents a halogen atom or an alkyl group. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom, and a halogen atom is preferred. The number of carbon atoms in the alkyl group is preferably 1 to 10, more preferably 1 to 6, and further preferably 1 to 3. Examples of the alkyl group include straight chain, branched chain, and cyclic, preferably straight chain or branched chain, and more preferably straight chain. The alkyl group may have a substituent or may be unsubstituted. The alkyl group is preferably an alkyl group having a halogen atom as a substituent, and more preferably an alkyl group having a fluorine atom as a substituent (fluoroalkyl group). Furthermore, the fluoroalkyl group is preferably a perfluoroalkyl group. In formula (BZ1-1), R 211 and R 212 When each independently represents an alkyl group, R 211 With R 212 They may be bonded to form a ring.

[0196] In formula (BZ2-1), R 213 ~R 215 Each independently represents a halogen atom or an alkyl group. The halogen atom and the alkyl group have the same ranges as those described in formula (BZ1-1), and the preferred ranges are also the same. In formula (BZ2-1), R 213 and R 214 When each independently represents an alkyl group, R 213 With R 214 can be bonded to form a ring. 214 and R 215 When each independently represents an alkyl group, R 214 With R 215 can be bonded to form a ring. 213 and R 215 When each independently represents an alkyl group, R 213 With R 215They may be bonded to form a ring.

[0197] As anion BZ - Specific examples include anions having structures represented by formulae (MD-1) to (MD-18).

[0198] [Chemical formula 13]

[0199]

[0200] And, (CF 3 ) 3 PF 3 - , (C 2 F 5 ) 2 PF 4 - , (C 2 F 5 ) 3 PF 3 - ,[(CF 3 ) 2 CF] 2 PF 4 - ,[(CF 3 ) 2 CF] 3 PF 3 、(nC 3 F 7 ) 2 PF 4 - 、(nC 3 F 7 ) 3 PF 3 - 、(nC 4 F 9 ) 3 PF 3 - , (C 2 F 5 )

[0201] (CF 3 ) 2 PF 3 - ,[(CF 3 ) 2 CFCF 2 ] 2 PF 4 - ,[(CF 3 ) 2 CFCF2 ] 3 PF 3 、(n-C 4 F 9 ) 2 PF 4 - 、(n-C 4 F 9 ) 3 PF 3 - 、(C 2 F 4 H)(CF 3 ) 2 PF 3 - 、(C 2 F 3 H 2 ) 3 PF 3 - 、(C 2 F 5 )(CF 3 ) 2 PF 3 - 、(CF 3 ) 4 B - 、CF 3 ) 3 BF - 、(CF 3 ) 2 BF 2 - 、(CF 3 )BF 3 - 、(C 2 F 5 ) 4 B - 、(C 2 F 5 ) 3 BF - 、(C 2 F 5 )BF 3 - 、(C 2 F 5 ) 2 BF 2 - 、(CF 3 )(C 2 F 5 ) 2 BF - 、(C 6 F 5) 4 B - ,[(CF 3 ) 2 C 6 H 3 ] 4 B - 、(CF 3 C 6 H 4 ) 4 B - 、(C 6 F 5 ) 2 BF 2 - 、(C 6 F 5 )BF 3 - 、(C 6 H 3 F 2 ) 4 B - 、B(CN) 4 - 、B(CN)F 3 - 、B(CN) 2 F 2 - 、B(CN) 3 F - 、(CF 3 ) 3 B(CN) - 、(CF 3 ) 2 B(CN) 2 - 、(C 2 F 5 ) 3 B(CN) - 、(C 2 F 5 ) 2 B(CN) 2 - 、(nC 3 F 7 ) 3 B(CN) - 、(nC 4 F 9 ) 3 B(CN) - 、(nC 4 F 9 ) 2 B(CN) 2 - 、(nC6 F 13 ) 3 B(CN) - ,(CHF 2 ) 3 B(CN) - ,(CHF 2 ) 2 B(CN) 2 - , (CH 2 CF 3 ) 3 B(CN) - , (CH 2 CF 3 ) 2 B(CN) 2 - , (CH 2 C 2 F 5 ) 3 B(CN) - , (CH 2 C 2 F 5 ) 2 B(CN) 2 - , (CH 2 CH 2 C 3 F 7 ) 2 B(CN) 2 - 、(nC 3 F 7 CH 2 ) 2 B(CN) 2 - , (C 6 H 5 ) 3 B(CN) - The anion BZ can also be used as an anion - Specific examples are given.

[0202] [Chemical formula 14]

[0203]

[0204] [Chemical formula 15]

[0205]

[0206] [Chemical formula 16]

[0207]

[0208] In the ionic compound B, with the anion BZ - Paired cations BX + As long as it can counteract the anion BZ - The structure with a charge can be any cation.

[0209] From the easy reduction with the relative anion that is anion BZ - Considering the ionic bond energy and other reasons, the cation BX + The molecular weight of the polyol is preferably 2-500, more preferably 2-200, further preferably 6-90.

[0210] As cation BX + , preferably a cation of a typical metal atom of the monomer, a carbon cation, an ammonium cation, a phosphonium cation or a sulfonium cation, more preferably a cation of a typical metal atom of the monomer or an ammonium cation.

[0211] As the cation of a typical metal atom of the monomer, cations of metal elements included in Group 1A (alkali metals), Group 2A (alkaline earth metals), Group 2B (zinc group), Group 3B (boron group), Group 4B (carbon group), and Group 5B (nitrogen group) of the periodic table are preferred. Specifically, lithium (Li) cations, beryllium (Be) cations, sodium (Na) cations, magnesium (Mg) cations, aluminum (Al) cations, potassium (K) cations, calcium (Ca) cations, zinc (Zn) cations, gallium (Ga) cations, rubidium (Rb) cations, strontium (Sr) cations, cadmium (Cd) cations, indium (In) cations, tin (Sn) cations, cesium (Cs) cations, barium (Ba) cations, mercury (Hg) cations, thallium (Tl) cations, lead (Pb) cations, bismuth (Bi) cations, francium (Fr) cations, radium (Ra) cations, etc. can be cited. Among them, lithium (Li) cations, sodium (Na) cations, magnesium (Mg) cations, aluminum (Al) cations, potassium (K) cations, calcium (Ca) cations, zinc (Zn) cations, gallium (Ga) cations, rubidium (Rb) cations, strontium (Sr) cations, indium (In) cations, cesium (Cs) cations, and barium (Ba) cations are preferred; lithium (Li) cations, sodium (Na) cations, magnesium (Mg) cations, aluminum (Al) cations, potassium (K) cations, calcium (Ca) cations, and zinc (Zn) cations are more preferred; and lithium (Li) cations, sodium (Na) cations, and potassium (K) cations are further preferred.

[0212] Examples of the ammonium cation include cations represented by the following formula (BX-1).

[0213] [Chemical formula 17]

[0214]

[0215] In formula (BX-1), R AN1 ~R AN4 Each independently represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an aryl group, wherein the hydrogen atoms contained in these groups may be replaced by -OH, -CH=CH 2 or -CH=CHR b Furthermore, -O-, -S-, -CO-, -NH- or -NR- may be inserted between the carbon-carbon bonds of the alkyl and alkenyl groups. b -. And, R AN1 ~R AN4 The heterocyclic ring may be bonded to each other to form a 3- to 10-membered nitrogen atom-containing heterocyclic ring. In this case, the hydrogen atoms contained in the heterocyclic ring may be linked to each other via -R b , -OH substituted. b It represents a monovalent saturated hydrocarbon group having 1 to 10 carbon atoms.

[0216] Specific examples of the ammonium cation include tetramethylammonium cation, tetraethylammonium cation, tetrapropylammonium cation, tetrabutylammonium cation, monoethyltrimethylammonium cation, monopropyltrimethylammonium cation, monobutyltrimethylammonium cation, monostearyltrimethylammonium cation, distearyldimethylammonium cation, tristearylmonomethylammonium cation, stearyltrimethylammonium cation, trioctylmethylammonium cation, dioctyldimethylammonium cation, monolauryltrimethylammonium cation, dilauryldimethylammonium cation, trilaurylmethylammonium cation, tripentylbenzylammonium cation, trihexylbenzylammonium cation, trioctylbenzylammonium cation, trilaurylbenzylammonium chloride cation, benzyldimethylstearylammonium cation, benzyldimethyloctylammonium cation, dialkyl (alkyl group is C14 to C18)dimethylammonium cation, and cations of the structures shown below.

[0217] [Chemical formula 18]

[0218]

[0219] The content of the ionic compound B is preferably 0.1 to 15% by mass of the total solid content of the coloring composition. The upper limit is preferably 12% by mass or less, more preferably 10% by mass or less, and the lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more.

[0220] The content of the ionic compound B is preferably 0.05 to 4.00 mol, more preferably 0.05 to 3.00 mol, and even more preferably 0.05 to 2.00 mol, relative to 1 mol of the dye A described above.

[0221] <<Resin>>

[0222] The coloring composition of the present invention preferably contains a resin. The resin is blended for the purpose of dispersing particles of a pigment or the like in the coloring composition or for the purpose of a binder. In addition, a resin mainly used to disperse particles of a pigment or the like is also referred to as a dispersant. However, this use of the resin is an example, and the resin can also be used for purposes other than this use.

[0223] The weight average molecular weight (Mw) of the resin is preferably 3,000 to 2,000,000. The upper limit is preferably 1,000,000 or less, more preferably 500,000 or less. The lower limit is preferably 4,000 or more, more preferably 5,000 or more.

[0224] Examples of the resin include (meth) acrylic resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, polyimide resins, polyamide-imide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, etc. These resins may be used alone or in combination of two or more. Furthermore, the resins described in paragraphs 0041 to 0060 of Japanese Patent Application Publication No. 2017-206689, the resins described in paragraphs 0022 to 0071 of Japanese Patent Application Publication No. 2018-010856, the resins described in Japanese Patent Application Publication No. 2017-057265, the resins described in Japanese Patent Application Publication No. 2017-032685, the resins described in Japanese Patent Application Publication No. 2017-075248, and the resins described in Japanese Patent Application Publication No. 2017-066240 can also be used.

[0225] In the present invention, it is preferred to use a resin having an acid group as the resin. According to this embodiment, the developability of the coloring composition can be improved, and pixels with excellent rectangularity can be easily formed. Examples of the acid group include a carboxyl group, a phosphoric acid group, a sulfonic acid group, and a phenolic hydroxyl group, and a carboxyl group is preferred. The resin having an acid group can be used as an alkali-soluble resin, for example.

[0226] The resin having an acid group preferably contains repeating units having an acid group on the side chain, and more preferably contains 5 to 70 mol% of repeating units having an acid group on the side chain in all repeating units of the resin. The upper limit of the content of repeating units having an acid group on the side chain is preferably 50 mol% or less, more preferably 30 mol% or less. The lower limit of the content of repeating units having an acid group on the side chain is preferably 10 mol% or more, more preferably 20 mol% or more.

[0227] It is also preferred that the resin having an acid group contains repeating units derived from a monomer component containing a compound represented by the following formula (ED1) and / or a compound represented by the following formula (ED2) (hereinafter, these compounds may also be referred to as “ether dimers”).

[0228] [Chemical formula 19]

[0229]

[0230] In formula (ED1), R 1 and R 2 Each independently represents a hydrogen atom or an optionally substituted hydrocarbon group having 1 to 25 carbon atoms.

[0231] [Chemical formula 20]

[0232]

[0233] In formula (ED2), R represents a hydrogen atom or an organic group having 1 to 30 carbon atoms. For details of formula (ED2), reference can be made to the description of Japanese Unexamined Patent Publication No. 2010-168539, the contents of which are incorporated herein.

[0234] As specific examples of the ether dimer, reference can be made to the description in paragraph 0317 of JP-A-2013-029760, for example, the contents of which are incorporated herein.

[0235] It is also preferred that the resin used in the present invention contains a repeating unit derived from a compound represented by the following formula (X).

[0236] [Chemical formula 21]

[0237]

[0238] In formula (X), R 1 represents a hydrogen atom or a methyl group, R 2 represents an alkylene group having 2 to 10 carbon atoms, R 3 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms which may contain a benzene ring. n represents an integer of 1 to 15.

[0239] Regarding the resin having an acid group, reference may be made to paragraphs 0558 to 0571 of Japanese Patent Application Publication No. 2012-208494 (paragraphs 0685 to 0700 of the corresponding specification of U.S. Patent Application Publication No. 2012 / 0235099) and paragraphs 0076 to 0099 of Japanese Patent Application Publication No. 2012-198408, which are incorporated herein. In addition, commercially available products may be used as the resin having an acid group.

[0240] The acid value of the resin having an acid group is preferably 30 to 500 mgKOH / g. The lower limit is preferably 50 mgKOH / g or more, more preferably 70 mgKOH / g or more. The upper limit is preferably 400 mgKOH / g or less, more preferably 300 mgKOH / g or less, and further preferably 200 mgKOH / g or less. The weight average molecular weight (Mw) of the resin having an acid group is preferably 5000 to 100000. And, the number average molecular weight (Mn) of the resin having an acid group is preferably 1000 to 20000.

[0241] The coloring composition of the present invention may also contain a resin as a dispersant. As dispersants, acidic dispersants (acidic resins) and alkaline dispersants (alkaline resins) can be cited. Here, the acidic dispersant (acidic resin) refers to a resin in which the amount of acid groups is greater than the amount of alkaline groups. The acidic dispersant (acidic resin) is preferably a resin in which the amount of acid groups accounts for more than 70 mol% when the total amount of acid groups and the amount of alkaline groups is set to 100 mol%, and a resin substantially containing only acid groups is more preferred. Preferably, the acid group possessed by the acidic dispersant (acidic resin) is a carboxyl group. The acid value of the acidic dispersant (acidic resin) is preferably 40 to 105 mgKOH / g, more preferably 50 to 105 mgKOH / g, and further preferably 60 to 105 mgKOH / g. In addition, the alkaline dispersant (alkaline resin) refers to a resin in which the amount of alkaline groups is greater than the amount of acid groups. The basic dispersant (basic resin) is preferably a resin having a basic group content exceeding 50 mol % when the total of the acid group content and the basic group content is 100 mol %. The basic group possessed by the basic dispersant is preferably an amino group.

[0242] The resin used as the dispersant preferably contains a repeating unit having an acid group. When the resin used as the dispersant contains a repeating unit having an acid group, the generation of development residues can be further suppressed when a pattern is formed by photolithography.

[0243] The resin used as the dispersant is also preferably a grafted resin. For details of the grafted resin, reference can be made to paragraphs 0025 to 0094 of JP-A-2012-255128, and the contents are incorporated into the present specification.

[0244] The resin used as a dispersant is also preferably a polyimine dispersant containing nitrogen atoms in at least one of the main chain and the side chain. As a polyimine dispersant, it is preferred to have a main chain and a side chain, and a resin having a basic nitrogen atom on at least one of the main chain and the side chain, wherein the main chain contains a partial structure having a functional group with a pKa of less than 14, and the number of atoms in the side chain is 40 to 10,000. There is no particular limitation on the basic nitrogen atom as long as it is a basic nitrogen atom. For polyimine-based dispersants, reference can be made to paragraphs 0102 to 0166 of Japanese Patent Publication No. 2012-255128, and the content is incorporated into this specification.

[0245] 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. Examples of such resins include dendritic polymers (including star polymers). Specific examples of dendritic polymers include polymer compounds C-1 to C-31 described in 0196 to 0209 of Japanese Patent Application Publication No. 2013-043962.

[0246] Furthermore, the above-mentioned resin having an acid group (alkali-soluble resin) can also be used as a dispersant.

[0247] Furthermore, the resin used as the dispersant also preferably contains a repeating unit having a group containing an ethylenically unsaturated bond in the side chain. The content of the repeating unit having a group containing an ethylenically unsaturated bond in the side chain is preferably 10 mol% or more, more preferably 10 to 80 mol%, and further preferably 20 to 70 mol% of all repeating units of the resin.

[0248] Dispersants can also be obtained as commercial products. As specific examples of such, DISPERBYK series manufactured by BYK Chemie GmbH (for example, DISPERBYK-111, 161, etc.), SOLSPERSE series manufactured by Lubrizol Japan Limited. (for example, SOLSPERSE76500, etc.), etc. can be cited. In addition, the pigment dispersants described in paragraphs 0041 to 0130 of Japanese Patent Publication No. 2014-130338 can also be used, and the contents are incorporated into this specification. In addition, the resin described as the above-mentioned dispersant can also be used for purposes other than the dispersant. For example, it can also be used as an adhesive.

[0249] 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 5 to 50% by mass. The lower limit is preferably 10% by mass or more, and more preferably 15% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 35% by mass or less, and further preferably 30% by mass or less. In addition, the content of the resin (alkali-soluble resin) having an acid group in the total solid content of the coloring composition is preferably 5 to 50% by mass. The lower limit is preferably 10% by mass or more, and more preferably 15% by mass or more. The upper limit is preferably 40% by mass or less, more preferably 35% by mass or less, and further preferably 30% by mass or less. In addition, from the reason that excellent developability is easily obtained, the content of the resin (alkali-soluble resin) having an acid group in the total amount of the resin is preferably 30% by mass or more, more preferably 50% by mass or more, further preferably 70% by mass or more, and particularly preferably 80% by mass or more. The upper limit can be set to 100% by mass, can also be set to 95% by mass, and can also be set to 90% by mass or less. In the coloring composition of the present invention, only one resin can be used, or two or more resins can be used in combination. When two or more kinds are used in combination, the total amount thereof is preferably within the above range.

[0250] <<Pigment derivatives>>

[0251] The coloring composition of the present invention can contain a pigment derivative. When the coloring composition of the present invention contains a pigment, it is preferred that the coloring composition of the present invention contains a pigment derivative. As a pigment derivative, a compound having a structure in which a part of the chromophore is substituted by an acid group or a basic group can be cited. As the chromophore constituting the pigment derivative, a quinoline skeleton, a benzimidazolone skeleton, a diketopyrrolopyrrole skeleton, an azo skeleton, a phthalocyanine skeleton, an anthraquinone skeleton, a quinacridone skeleton, a dioxazine skeleton, a perindolone skeleton, a perylene skeleton, a thioindigo skeleton, an isoindoline skeleton, an isoindolinone skeleton, a quinophthalone skeleton, a reduction skeleton, a metal complex system skeleton, etc. are cited, preferably a quinoline skeleton, a benzimidazolone skeleton, a diketopyrrolopyrrole skeleton, an azo skeleton, a quinophthalone skeleton, an isoindoline skeleton and a phthalocyanine skeleton, and more preferably an azo skeleton and a benzimidazolone skeleton. As an acid group, a sulfonic acid group, a carboxyl group, a phosphoric acid group and salts thereof can be cited. As an atom or atomic group constituting the salt, an alkali metal ion (Li + 、Na + , K + etc.), alkaline earth metal ions (Ca 2+ Mg 2+ As the basic group, there can be mentioned amino, pyridyl and its salt, salt of ammonium group and phthalimide methyl. As the atom or atomic group constituting the salt, there can be mentioned hydroxide ion, halogen ion, carboxylate ion, sulfonate ion, phenoxide ion and the like.

[0252] As the pigment derivative, a pigment derivative having excellent visual transparency (hereinafter also referred to as a transparent pigment derivative) can also be used. The maximum value (εmax) of the molar absorption coefficient of the transparent pigment derivative in the wavelength region of 400 to 700 nm is preferably 3000 L·mol -1 cm -1 Below, more preferably 1000 L·mol -1 cm -1 Below, more preferably 100 L·mol -1 cm -1 The lower limit of εmax is, for example, 1 L·mol -1 cm -1 Above, it can also be 10L·mol -1 cm -1 above.

[0253] Specific examples of the pigment derivatives include Japanese Patent Application Laid-Open Nos. 56-118462, 63-264674, 01-217077, 03-009961, 03-026767, 03-153780, 03-045 662, Japanese Patent Application Laid-Open No. 04-285669, Japanese Patent Application Laid-Open No. 06-145546, Japanese Patent Application Laid-Open No. 06-212088, Japanese Patent Application Laid-Open No. 06-240158, Japanese Patent Application Laid-Open No. 10-030063, Japanese Patent Application Laid-Open No. 10-195326, International Publication No. 2011 / 024896 86 to 0098, 0063 to 0094 of International Publication No. 2012 / 102399, 0082 of International Publication No. 2017 / 038252, 0171 of Japanese Patent Application Publication No. 2015-151530, 0162 to 0183 of Japanese Patent Application Publication No. 2011-252065, Japanese Patent Application Publication No. 2003-081972, Japanese Patent Application Publication No. The compounds described in Japanese Patent Publication No. 5299151, Japanese Patent Publication No. 2015-172732, Japanese Patent Publication No. 2014-199308, Japanese Patent Publication No. 2014-085562, Japanese Patent Publication No. 2014-035351, Japanese Patent Publication No. 2008-081565, and Japanese Patent Publication No. 2019-109512.

[0254] When the coloring composition of the present invention contains a pigment derivative, the content of the pigment derivative in the total solid content of the coloring composition is preferably 0.3 to 20% by mass. The lower limit is preferably 0.6% by mass or more, and more preferably 0.9% by mass or more. The upper limit is preferably 15% by mass or less, more preferably 12.5% ​​by mass or less, and further preferably 10% by mass or less. In addition, the content of the pigment derivative is preferably 1 to 30 parts by mass relative to 100 parts by mass of the pigment. The lower limit is preferably 2 parts by mass or more, and more preferably 3 parts by mass or more. The upper limit is preferably 25 parts by mass or less, more preferably 20 parts by mass or less, and further preferably 15% by mass or less. In the coloring composition of the present invention, only one pigment derivative may be used, or two or more may be used in combination. When two or more are used in combination, it is preferred that the total amount of these is within the above range.

[0255] <<Polymerizable compounds>>

[0256] The coloring composition of the present invention preferably contains a polymerizable compound. As the polymerizable compound, a known compound that can be crosslinked by free radicals, acid or heat can be used. In the present invention, the polymerizable compound is preferably a compound having an ethylenic unsaturated bond group. As the ethylenic unsaturated bond group, vinyl, (meth) allyl, (meth) acryloyl, etc. can be cited. The polymerizable compound used in the present invention is preferably a free radical polymerizable compound.

[0257] The polymerizable compound may be in any chemical form such as a monomer, a prepolymer, or an oligomer, but preferably a monomer. The molecular weight of the polymerizable compound is preferably 100 to 3000. The upper limit is more preferably 2000 or less, and further preferably 1500 or less. The lower limit is more preferably 150 or more, and further preferably 250 or more.

[0258] The polymerizable compound is preferably a compound containing 3 or more ethylenically unsaturated bond groups, more preferably a compound containing 3 to 15 ethylenically unsaturated bond groups, and further preferably a compound containing 3 to 6 ethylenically unsaturated bond groups. Furthermore, the polymerizable compound is preferably a 3 to 15-functional (meth)acrylate compound, and more preferably a 3 to 6-functional (meth)acrylate compound. Specific examples of the polymerizable compound include compounds described in paragraphs 0095 to 0108 of JP-A-2009-288705, paragraph 0227 of JP-A-2013-029760, paragraphs 0254 to 0257 of JP-A-2008-292970, paragraphs 0034 to 0038 of JP-A-2013-253224, paragraph 0477 of JP-A-2012-208494, JP-A-2017-048367, Japanese Patent No. 6057891, and Japanese Patent No. 6031807, and the contents thereof are incorporated into the present specification.

[0259] Preferred polymerizable compounds include dipentatriol triacrylate (commercially available as KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentatriol tetraacrylate (commercially available as KAYARAD D-320; manufactured by Nippon Kayaku Co., Ltd.), dipentatriol penta(meth)acrylate (commercially available as KAYARAD D-310; manufactured by Nippon Kayaku Co., Ltd.), dipentatriol hexa(meth)acrylate (commercially available as KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd., NK ESTER A-DPH-12E; manufactured by Shin-Nakamura Chemical Co., Ltd.), and compounds having structures in which these (meth)acryloyl groups are bonded via ethylene glycol and / or propylene glycol residues (for example, SARTOMER Company, Inc. manufactures and markets SR454 and SR499). As the polymerizable compound, diglycerol EO (ethylene oxide)-modified (meth) acrylate (commercially available product, M-460; manufactured by TOAGOSEI CO., Ltd.), pentaerythritol tetraacrylate (manufactured by Shin Nakamura Chemical Co., Ltd., NK Ester A-TMMT), 1,6-hexanediol diacrylate (manufactured by Nippon Kayaku Co., Ltd., KAYARADHDDA), RP-1040 (manufactured by Nippon Kayaku Co., Ltd.), ARONIX TO-2349 (manufactured by TOAGOSEI CO., Ltd.), NK Oligo UA-7200 (manufactured by Shin Nakamura Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), LIGHT ACRYLATE POB-A0 (manufactured by KYOEISHA CHEMICAL Co., LTD. manufacturing) and so on.

[0260] As the polymerizable compound, trifunctional (meth)acrylate compounds such as trimethylolpropane tri(meth)acrylate, trimethylolpropane propylene oxide-modified tri(meth)acrylate, trimethylolpropane ethylene oxide-modified tri(meth)acrylate, isocyanuric acid ethylene oxide-modified tri(meth)acrylate, and pentaerythritol tri(meth)acrylate are also preferably used. Commercially available products of the trifunctional (meth)acrylate compound include ARONIX M-309, M-310, M-321, M-350, M-360, M-313, M-315, M-306, M-305, M-303, M-452, and 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, and TMPT (manufactured by Shin-Nakamura Chemical Co., Ltd.), KAYARAD GPO-303, TMPTA, THE-330, TPA-330, and PET-30 (manufactured by Nippon Kayaku Co., Ltd.).

[0261] As the polymerizable compound, a polymerizable compound having an acid group can also be used. By using a polymerizable compound having an acid group, the coloring composition of the unexposed part can be easily removed during development, thereby suppressing the generation of development residues. As the acid group, carboxyl group, sulfonic group, phosphoric acid group, etc. can be mentioned, and carboxyl group is preferred. Commercially available products of polymerizable compounds having an acid group include ARONIX M-510, M-520, ARONIX TO-2349 (manufactured by TOAGOSEI CO., LTD.), etc. The preferred acid value of the polymerizable compound having an acid group is 0.1 to 40 mgKOH / g, and more preferably 5 to 30 mgKOH / g. If the acid value of the polymerizable compound is 0.1 mgKOH / g or more, the solubility in the developer is good, and if it is 40 mgKOH / g or less, it is beneficial for manufacturing or handling.

[0262] As the polymerizable compound, a polymerizable compound having a caprolactone structure can also be used. The polymerizable compound having a caprolactone structure is commercially available, for example, as KAYARAD DPCA series from Nippon Kayaku Co., Ltd., and includes DPCA-20, DPCA-30, DPCA-60, DPCA-120, and the like.

[0263] As the polymerizable compound, a polymerizable compound having an alkyleneoxy group can also be used. Preferably, the polymerizable compound having an alkyleneoxy group is a polymerizable compound having an ethyleneoxy group and / or a propyleneoxy group, more preferably a polymerizable compound having an ethyleneoxy group, and further preferably a trifunctional to hexafunctional (meth)acrylate compound having 4 to 20 ethyleneoxy groups. As commercially available products of the polymerizable compound having an alkyleneoxy group, for example, SR-494, a tetrafunctional (meth)acrylate having 4 ethyleneoxy groups manufactured by SARTOMER Company, Inc., KAYARAD TPA-330, a trifunctional (meth)acrylate having 3 isobutyleneoxy groups, etc. can be cited.

[0264] As the polymerizable compound, a polymerizable compound having a fluorene skeleton can also be used. Examples of commercially available polymerizable compounds having a fluorene skeleton include OGSOL EA-0200 and EA-0300 (manufactured by Osaka Gas Chemicals Co., Ltd., a (meth)acrylate monomer having a fluorene skeleton).

[0265] As the polymerizable compound, it is also preferable to use a compound that does not substantially contain environmentally regulated substances such as toluene. Examples of commercially available products of such a compound include KAYARAD DPHA LT and KAYARAD DPEA-12LT (manufactured by Nippon Kayaku Co., Ltd.).

[0266] As the polymerizable compound, urethane acrylates described in JP-B-48-041708, JP-A-51-037193, JP-B-02-032293, and JP-B-02-016765, urethane compounds having an ethylene oxide skeleton described in JP-B-58-049860, JP-B-56-017654, JP-B-62-039417, and JP-B-62-039418, and polymerizable compounds having an amino structure or a sulfide structure in the molecule described in JP-A-63-277653, JP-B-63-260909, and JP-B-01-105238 are also preferably used. In addition, as the polymerizable compound, commercially available products such as UA-7200 (manufactured by Shin-Nakamura Chemical Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600, and LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.) can also be used.

[0267] When the coloring composition of the present invention contains a polymerizable compound, the content of the polymerizable compound in the total solid content of the coloring composition is preferably 0.1 to 50% by mass. The lower limit is more preferably 0.5% by mass or more, and further preferably 1% by mass or more. The upper limit is more preferably 45% by mass or less, and further preferably 40% by mass or less.

[0268] Furthermore, from the viewpoint of curability, developability and film formation, the total content of the polymerizable compound and the resin in the total solid content of the coloring composition is preferably 10 to 65% by mass. The lower limit is preferably 15% by mass or more, more preferably 20% by mass or more, and further preferably 30% by mass or more. The upper limit is preferably 60% by mass or less, more preferably 50% by mass or less, and further preferably 40% by mass or less. Furthermore, relative to 100 parts by mass of the polymerizable compound, it is preferred to contain 30 to 300 parts by mass of the resin. The lower limit is preferably 50 parts by mass or more, and more preferably 80 parts by mass or more. The upper limit is preferably 250 parts by mass or less, and more preferably 200 parts by mass or less.

[0269] In the coloring composition of the present invention, the polymerizable compound may be used alone or in combination of two or more. When two or more polymerizable compounds are used, the total amount thereof is preferably within the above range.

[0270] <<Photopolymerization initiator>>

[0271] The coloring composition of the present invention preferably contains a photopolymerization initiator. In particular, when the coloring composition of the present invention contains a polymerizable compound, the coloring composition of the present invention preferably further contains a photopolymerization initiator. The photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, a compound that is photosensitized to light in the ultraviolet region to the visible light region is preferred. The photopolymerization initiator is preferably a photoradical polymerization initiator.

[0272] Examples of the photopolymerization initiator include halogenated hydrocarbon derivatives (e.g., compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds, hexaarylbiimidazoles, oxime compounds, organic peroxides, sulfur compounds, ketone compounds, aromatic onium salts, α-hydroxyketone compounds, α-aminoketone compounds, etc. From the viewpoint of exposure sensitivity, the photopolymerization initiator is preferably a trihalomethyltriazine compound, a benzyldimethylketal compound, an α-hydroxyketone compound, an α-aminoketone compound, an acylphosphine compound, a phosphine oxide compound, a metallocene compound, an oxime compound, a triarylimidazole dimer, an onium compound, a benzothiazole compound, a benzophenone compound, an acetophenone compound, a cyclopentadiene-benzene-iron complex, a halomethyloxadiazole compound, and a 3-aryl-substituted coumarin compound, more preferably a compound selected from the group consisting of an oxime compound, an α-hydroxyketone compound, an α-aminoketone compound, and an acylphosphine compound, and still more preferably an oxime compound. In addition, as photopolymerization initiators, there can be cited paragraphs 0065 to 0111 of Japanese Patent Gazette No. 2014-130173, compounds described in Japanese Patent Gazette No. 6301489, peroxide-based photopolymerization initiators described in MATERIAL STAGE 37 to 60p, vol. 19, No. 3, 2019, photopolymerization initiators described in International Publication No. 2018 / 221177, photopolymerization initiators described in International Publication No. 2018 / 110179, photopolymerization initiators described in Japanese Patent Gazette No. 2019-043864, and photopolymerization initiators described in Japanese Patent Gazette No. 2019-044030, and the contents are incorporated into this specification.

[0273] Commercially available products of the α-hydroxyketone compound include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (all manufactured by IGM Resins BV), Irgacure 184, Irgacure 1173, Irgacure 2959, Irgacure 127 (all manufactured by BASF), etc. Commercially available products of the α-aminoketone compound include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (all manufactured by IGM Resins BV), Irgacure 907, Irgacure 369, Irgacure 369E, Irgacure 379EG (all manufactured by BASF), etc. Examples of commercially available products of the acylphosphine compound include Omnirad 819 and Omnirad TPO (both manufactured by IGM Resins B.V.), Irgacure 819 and Irgacure TPO (both manufactured by BASF).

[0274] Examples of the oxime compound include compounds described in JP-A-2001-233842, compounds described in JP-A-2000-080068, compounds described in JP-A-2006-342166, compounds described in JCS Perkin II (1979, pp. 1653-1660), compounds described in JCS Perkin II (1979, pp. 156-162), and compounds described in Journal of Photopolymer Science and Technology. The compounds described in Japanese Unexamined Patent Application (1995, pp. 202-232), the compounds described in Japanese Unexamined Patent Application No. 2000-066385, the compounds described in Japanese Unexamined Patent Application No. 2000-080068, the compounds described in Japanese Unexamined Patent Application No. 2004-534797, the compounds described in Japanese Unexamined Patent Application No. 2006-342166, the compounds described in Japanese Unexamined Patent Application No. 2017-019766 Compounds described in Japanese Patent No. 6065596, compounds described in International Publication No. 2015 / 152153, compounds described in International Publication No. 2017 / 051680, compounds described in Japanese Patent Unexamined Publication No. 2017-198865, compounds described in paragraphs 0025 to 0038 of International Publication No. 2017 / 164127, compounds described in International Publication No. 2013 / 167515, etc. Specific examples of oxime compounds include 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminobutane-2-one, 2-acetoxyiminopentane-3-one, 2-acetoxyimino-1-phenylpropane-1-one, 2-benzoyloxyimino-1-phenylpropane-1-one, 3-(4-toluenesulfonyloxy)iminobutane-2-one and 2-ethoxycarbonyloxyimino-1-phenylpropane-1-one. Commercially available products include Irgacure-OXE01, Irgacure-OXE02, Irgacure-OXE03, and Irgacure-OXE04 (all manufactured by BASF), TR-PBG-304 (manufactured by Changzhou Tronly New Electronic Materials Co., Ltd.), and Adeka Optomer N-1919 (manufactured by ADEKA CORPORATION, a photopolymerization initiator 2 described in Japanese Patent Application Publication No. 2012-014052). In addition, as the oxime compound, a non-coloring compound or a highly transparent compound that is not easily discolored is preferably used.Examples of commercially available products include ADEKA ARKLS NCI-730, NCI-831, and NCI-930 (all manufactured by ADEKA CORPORATION).

[0275] 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 compounds described in JP-A-2014-137466.

[0276] As the photopolymerization initiator, an oxime compound having a skeleton in which at least one benzene ring in a carbazole ring is a naphthalene ring can also be used. Specific examples of such oxime compounds include compounds described in International Publication No. 2013 / 083505.

[0277] 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 include compounds described in JP-A-2010-262028, compounds 24, 36 to 40 described in JP-A-2014-500852, and compound (C-3) described in JP-A-2013-164471.

[0278] As the photopolymerization initiator, an oxime compound having a nitro group can be used. It is also preferred that the oxime compound having a nitro group is set as a dimer. As specific examples of the oxime compound having a nitro group, there can be cited the compounds described in paragraphs 0031 to 0047 of Japanese Patent Publication No. 2013-114249, paragraphs 0008 to 0012 and 0070 to 0079 of Japanese Patent Publication No. 2014-137466, the compounds described in paragraphs 0007 to 0025 of Japanese Patent Publication No. 4223071, and ADEKA ARKLS NCI-831 (manufactured by ADEKA CORPORATION).

[0279] As the photopolymerization initiator, an oxime compound having a benzofuran skeleton can also be used. Specific examples thereof include OE-01 to OE-75 described in International Publication No. 2015 / 036910.

[0280] As a photopolymerization initiator, an oxime compound having a substituent having a hydroxyl group bonded to a carbazole skeleton can also be used. As these photopolymerization initiators, compounds described in International Publication No. 2019 / 088055 can be cited.

[0281] Specific examples of the oxime compound preferably used in the present invention are shown below, but the present invention is not limited to these.

[0282] [Chemical formula 22]

[0283]

[0284] [Chemical formula 23]

[0285]

[0286] The oxime compound preferably has a maximum absorption wavelength in the range of 350 to 500 nm, more preferably a compound having a maximum absorption wavelength in the range of 360 to 480 nm. In addition, from the viewpoint of sensitivity, the molar absorption coefficient of the oxime compound at a wavelength of 365 nm or 405 nm is preferably high, more preferably 1000 to 300,000, further preferably 2000 to 300,000, and particularly preferably 5000 to 200,000. The molar absorption coefficient of the compound can be measured using a known method. For example, by a spectrophotometer (Cary-5 spectrophotometer manufactured by Varian), preferably using ethyl acetate at a concentration of 0.01 g / L.

[0287] As the photopolymerization initiator, a difunctional or trifunctional or higher photoradical polymerization initiator can be used. By using these photoradical polymerization initiators, two or more free radicals are generated from one molecule of the photoradical polymerization initiator, so that good sensitivity can be obtained. In addition, when using a compound with an asymmetric structure, the crystallinity decreases and the solubility in solvents is improved, and it becomes difficult to precipitate over time, which can improve the stability of the coloring composition over time. Specific examples of the bifunctional or trifunctional or higher-functional photoradical polymerization initiator include dimers of oxime compounds described in JP-T 2010-527339, JP-T 2011-524436, International Publication No. 2015 / 004565, paragraphs 0407 to 0412 of JP-T 2016-532675, and paragraphs 0039 to 0055 of International Publication No. 2017 / 033680, and compound (E) described in JP-T 2013-522445. and compound (G), Cmpd1 to 7 described in International Publication No. 2016 / 034963, the oxime ester photoinitiator described in paragraph 0007 of Japanese Patent Publication No. 2017-523465, the photoinitiator described in paragraphs 0020 to 0033 of Japanese Patent Publication No. 2017-167399, the photopolymerization initiator (A) described in paragraphs 0017 to 0026 of Japanese Patent Publication No. 2017-151342, the oxime ester photoinitiator described in Japanese Patent No. 6469669, etc.

[0288] When the coloring composition of the present invention contains a photopolymerization initiator, 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, and 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 types are used, the total amount of these preferably falls within the above range.

[0289] <<Compounds having a cyclic ether group>>

[0290] The coloring composition of the present invention may contain a compound having a cyclic ether group. Examples of the cyclic ether group include an epoxy group, an oxetanyl group, and the like. The compound having a cyclic ether group is preferably a compound having an epoxy group. Examples of the compound having an epoxy group include a compound having one or more epoxy groups in one molecule, and preferably a compound having two or more epoxy groups. Preferably, the number of epoxy groups in one molecule is 1 to 100. The upper limit of the epoxy group can be, for example, set to 10 or less, or can be set to 5 or less. The lower limit of the epoxy group is preferably 2 or more. As the compound having an epoxy group, the compounds described in paragraphs 0034 to 0036 of JP-A-2013-011869, paragraphs 0147 to 0156 of JP-A-2014-043556, paragraphs 0085 to 0092 of JP-A-2014-089408, and the compounds described in JP-A-2017-179172 can also be used. These contents are incorporated into this specification.

[0291] The compound having an epoxy group may be a low molecular weight compound (e.g., a molecular weight of less than 2000, and further a molecular weight of less than 1000), or a macromolecule (e.g., 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 100000, and more preferably 500 to 50000. The upper limit of the weight average molecular weight is preferably 10000 or less, more preferably 5000 or less, and further preferably 3000 or less.

[0292] As the compound having an epoxy group, an epoxy resin can be preferably used. Examples of the epoxy resin include epoxy resins that are glycidyl ethers of phenolic compounds, epoxy resins that are glycidyl ethers of various novolac resins, alicyclic epoxy resins, aliphatic epoxy resins, heterocyclic epoxy resins, glycidyl ester epoxy resins, glycidyl amine epoxy resins, epoxy resins obtained by glycidylating halogenated phenols, condensates of silicon compounds having epoxy groups and other silicon compounds, copolymers of polymerizable unsaturated compounds having epoxy groups and other polymerizable unsaturated compounds, etc. The epoxy equivalent of the epoxy resin is preferably 310 to 3300 g / eq, more preferably 310 to 1700 g / eq, and further preferably 310 to 1000 g / eq.

[0293] Commercially available products of the compound having a cyclic ether group include, for example, EHPE3150 (manufactured by Daicel Corporation), EPICLON N-695 (manufactured by DIC Corporation), Marproof G-0150M, G-0105SA, G-0130SP, G-0250SP, G-1005S, G-1005SA, G-1010S, G-2050M, G-01100, and G-01758 (these are polymers manufactured by NOF Corporation and contain an epoxy group).

[0294] In the case where 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 20% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more. The upper limit is preferably 15% by mass or less, and further preferably 10% by mass or less. In the coloring composition of the present invention, only one compound having a cyclic ether group may be used, or two or more compounds may be used. When two or more compounds are used, the total amount of these is preferably within the above range.

[0295] <<Silane coupling agent>>

[0296] The coloring composition of the present invention can contain a silane coupling agent. According to this mode, the adhesion of the obtained film to the support can be further improved. In the present invention, a silane coupling agent refers to a silane compound having a hydrolyzable group and a functional group other than it. In addition, a hydrolyzable group refers to a substituent that is directly bonded to a silicon atom and can produce a siloxane bond through at least one of a hydrolysis reaction and a condensation reaction. As a hydrolyzable group, a halogen atom, an alkoxy group, an acyloxy group, etc. can be cited, preferably an alkoxy group. That is, the silane coupling agent preferably has an alkoxysilyl compound. In addition, as a functional group other than a hydrolyzable group, for example, vinyl, (meth) allyl, (meth) acryloyl, mercapto, epoxy, oxetane, amino, urea, thioether, isocyanate, phenyl, etc. can be cited, preferably amino, (meth) acryloyl and epoxy. Specific examples of the silane coupling agent include N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., product name KBM-602), N-β-aminoethyl-γ-aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., product name KBM-603), N-β-aminoethyl-γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., product name KBE-602), γ-aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., product name KBM-903), γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., product name KBE-903), 3-methacryloxypropylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., product name KBE-903), Co., Ltd., product name KBM-502), 3-methacryloxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., product name KBM-503), etc. Specific examples of the silane coupling agent include the compounds described in paragraphs 0018 to 0036 of Japanese Patent Application Publication No. 2009-288703 and the compounds described in paragraphs 0056 to 0066 of Japanese Patent Application Publication No. 2009-242604, and these contents are incorporated into this specification.

[0297] When the coloring composition of the present invention contains a silane coupling agent, the content of the silane coupling agent in the total solid content of the coloring composition is preferably 0.1 to 5% by mass. The upper limit is preferably 3% by mass or less, and more preferably 2% by mass or less. The lower limit is preferably 0.5% by mass or more, and more preferably 1% by mass or more. In the coloring composition of the present invention, only one silane coupling agent may be used, or two or more silane coupling agents may be used. When two or more silane coupling agents are used, the total amount of these is preferably within the above range.

[0298] <<Organic solvents>>

[0299] The coloring composition of the present invention preferably contains an organic solvent. Examples of organic solvents include ester solvents, ketone solvents, alcohol solvents, amide solvents, ether solvents, hydrocarbon solvents, and the like. For details of these, reference can be made to paragraph 0223 of International Publication No. 2015 / 166779, and the contents are incorporated into this specification. In addition, cyclic alkyl substituted ester solvents and cyclic alkyl substituted ketone solvents can also be preferably used. Specific examples of the organic solvent include polyethylene glycol monomethyl ether, methylene chloride, 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-dimethylpropionamide, 3-butoxy-N,N-dimethylpropionamide, etc. However, it is sometimes preferred to reduce the amount of aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as the organic solvent for reasons such as environmental aspects (for example, it can be set to 50 mass ppm (parts per million) or less, 10 mass ppm or less, or 1 mass ppm or less relative to the total amount of the organic solvent).

[0300] In the present invention, it is preferred to use an organic solvent with a low metal content, and the metal content of the organic solvent is preferably 10 mass ppb (parts per billion) or less. If necessary, an organic solvent of the mass ppt (parts pertrillion: one trillionth) level can be used, such as provided by Toyo Gosei Co., Ltd (Chemical Industry Daily, November 13, 2015).

[0301] As a method for removing impurities such as metals from an organic solvent, for example, distillation (molecular distillation or thin film distillation, etc.) or filtering using a filter can be cited. The filter pore size of the filter used in the filtration is preferably 10 μm or less, more preferably 5 μm or less, and further preferably 3 μm or less. The material of the filter is preferably polytetrafluoroethylene, polyethylene or nylon.

[0302] The organic solvent may contain isomers (compounds having the same number of atoms but different structures). The isomers may contain only one type or multiple types.

[0303] In the present invention, the content of peroxide in the organic solvent is preferably 0.8 mmol / L or less, and more preferably substantially no peroxide is contained.

[0304] The content of the organic solvent in the coloring composition is preferably 10 to 95% by mass, more preferably 20 to 90% by mass, and still more preferably 30 to 90% by mass.

[0305] Furthermore, from the perspective of environmental regulation, it is preferred that the coloring composition of the present invention does not substantially contain environmentally regulated substances. In addition, in the present invention, substantially containing no environmentally regulated substances means that the content of environmentally regulated substances in the coloring composition is 50 mass ppm or less, preferably 30 mass ppm or less, further 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; halogenated benzenes such as chlorobenzene, etc. These are registered as environmentally regulated substances under REACH (Registration Evaluation Authorization and Restriction of CHemicals) regulation, PRTR (Pollutant Release and Transfer Register) method, VOC (Volatile Organic Compounds) regulation, etc., and the amount of use and treatment methods are strictly regulated. These compounds are sometimes used as solvents when manufacturing the various components of the coloring composition of the present invention, and are mixed into the coloring composition as residual solvents. From the perspective of human safety and environmental considerations, it is preferred to reduce these substances as much as possible. As a method for reducing environmental control substances, the method of heating and reducing the system interior to be set to more than the boiling point of the environmental control substances, and distilling and removing the environmental control substances from the system interior and reducing them can be cited. In addition, in the case of distilling and removing a small amount of environmental control substances, it is also useful to azeotropize the solvent with the same boiling point as the solvent in order to improve efficiency. In addition, when containing a compound with free radical polymerizability, it can be removed by reduced pressure distillation after adding an inhibitor, so as to suppress the progress of the free radical polymerization reaction in the reduced pressure distillation removal and cause crosslinking between molecules. These distillation removal methods can be carried out in any stage of the raw material stage, the stage of the product (such as the resin solution and the multifunctional monomer solution after the polymerization) of the raw material reaction, or the stage of the coloring composition made by mixing these compounds.

[0306] <<Polymerization inhibitor>>

[0307] The coloring composition of the present invention may 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), 2,2'-methylenebis(4-methyl-6-tert-butylphenol), and N-nitrosophenylhydroxylamine salts (ammonium salts, primary cerium salts, etc.). Among them, p-methoxyphenol is preferred. The content of the polymerization inhibitor in the total solid content of the coloring composition is preferably 0.0001 to 5% by mass.

[0308] <<Surfactant>>

[0309] The coloring composition of the present invention may contain a surfactant. As the surfactant, various surfactants such as fluorine-based surfactants, nonionic surfactants, cationic surfactants, anionic surfactants, and silicon-based surfactants may be used. As for the surfactant, the surfactants described in paragraphs 0238 to 0245 of International Publication No. 2015 / 166779 may be cited, and the contents are incorporated into this specification.

[0310] In the present invention, the surfactant is preferably a fluorine-based surfactant. By including a fluorine-based surfactant in the coloring composition, liquid properties (especially fluidity) are further improved, and liquid saving can be further improved. In addition, a film with less uneven thickness can be formed.

[0311] 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. Fluorine-based surfactants having a fluorine content within this range are effective in terms of thickness uniformity and liquid saving of the coating film, and also have good solubility in the coloring composition.

[0312] Examples of the fluorine-based surfactant include the surfactants described in paragraphs 0060 to 0064 of JP-A-2014-041318 (paragraphs 0060 to 0064 of the corresponding International Publication No. 2014 / 017669), and the surfactants described in paragraphs 0117 to 0132 of JP-A-2011-132503, and these contents are incorporated into the present specification. Examples of commercially available fluorine-based surfactants include MEGAFACE F171, F172, F173, F176, F177, F141, F142, F143, F144, R30, F437, F475, F479, F482, F554, F780, EXP, MFS-330 (all manufactured by DIC Corporation), Fluorad FC430, FC431, FC171 (all manufactured by Sumitomo 3M Limited), Surflon S-382, SC-101, SC-103, SC-104, SC-105, SC-1068, SC-381, SC-383, S-393, KH-40 (all manufactured by AGC Inc.), PolyFox PF636, PF656, PF6320, PF6520, PF7002 (all manufactured by OMNOVASOLUTIONS INC.), etc.

[0313] In addition, the fluorine-based surfactant can also preferably use an acrylic compound, which has a molecular structure having a functional group containing a fluorine atom, and when heat is applied, the functional group containing a fluorine atom is partially cut off and the fluorine atom is volatilized. As such a fluorine-based surfactant, MEGAFACE DS series manufactured by DIC Corporation can be cited (Chemical Industry Daily (February 22, 2016), Nikkei Industry News (February 23, 2016)), for example, MEGAFACE DS-21 can be cited.

[0314] In addition, regarding the fluorine-based surfactant, it is also preferred to use a polymer of a vinyl ether compound containing a fluorine atom and a hydrophilic vinyl ether compound having a fluorinated alkyl or fluorinated alkylene ether group. As such a fluorine-based surfactant, reference can be made to the records of Japanese Patent Publication No. 2016-216602, and the contents are incorporated into this specification.

[0315] The fluorine-based surfactant can also use block polymers. For example, the compounds described in Japanese Patent Publication No. 2011-089090 can be cited. The fluorine-based surfactant can also preferably use a fluorine-containing polymer compound, which contains: a repeating unit derived from a (meth)acrylate compound having a fluorine atom; and a repeating unit derived from a (meth)acrylate compound having 2 or more (preferably 5 or more) alkyleneoxy groups (preferably ethyleneoxy, propyleneoxy). In addition, the fluorine-containing surfactants described in paragraphs 0016 to 0037 of Japanese Patent Publication No. 2010-032698 and the following compounds are also exemplified as the fluorine-based surfactants used in the present invention.

[0316] [Chemical formula 24]

[0317]

[0318] The weight average molecular weight of the above compound is preferably 3000 to 50000, for example, 14000. In the above compound, % indicating the ratio of the repeating unit is mol %.

[0319] In addition, the fluorine-based surfactant can also use a fluorine-containing polymer having an ethylenically unsaturated bond group on the side chain. As a specific example, compounds described in paragraphs 0050 to 0090 and paragraphs 0289 to 0295 of Japanese Patent Publication No. 2010-164965, such as MEGAFACE RS-101, RS-102, RS-718K, RS-72-K manufactured by DIC Corporation, etc. In addition, the fluorine-based surfactant can also use compounds described in paragraphs 0015 to 0158 of Japanese Patent Publication No. 2015-117327.

[0320] Examples of the nonionic surfactant include glycerol, trimethylolpropane, trimethylolethane, and ethoxylates and propoxylates thereof (e.g., glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether, polyethylene glycol dilaurate, polyethylene glycol distearate, sorbitan fatty acid esters, Pluronic L10, L31, L61, L62, 10R5, 17R2, 25R2 (manufactured by BASF), Tetronic 304, 701, 704, 901, 904, 150R1 (manufactured by BASF), Solsperse 20000 (manufactured by Japan Lubrizol Corporation), NCW-101, NCW-1001, NCW-1002 (manufactured by FUJIFILM Wako Pure Chemical Corporation), PIONIN D-6112, D-6112-W, D-6315 (manufactured by Takemoto Oil & Fat Co., Ltd.), OLFIN E1010, Surfynol 104, 400, 440 (manufactured by Nissin Chemical Co., Ltd.), etc.

[0321] Examples of the silicone surfactant include Toray Silicone DC3PA, Toray Silicone SH7PA, Toray Silicone DC11PA, Toray Silicone SH21PA, Toray Silicone SH28PA, Toray Silicone SH29PA, Toray Silicone SH30PA, and Toray Silicone SH8400 (all manufactured by Dow Corning Toray Co., Ltd.), TSF-4440, TSF-4300, TSF-4445, TSF-4460, and TSF-4452 (all manufactured by Momentive Performance Materials Inc.), KP-341, KF-6001, and KF-6002 (all manufactured by Shin-Etsu Chemical Co., LTD.), BYK307, BYK323, and BYK330 (all manufactured by BYK-Chemie Corporation).

[0322] The content of the surfactant in the total solid content of the coloring composition is preferably 0.001% to 5.0% by mass, and more preferably 0.005% to 3.0% by mass. In the coloring composition of the present invention, only one surfactant may be used, or two or more surfactants may be used. When two or more surfactants are used, the total amount thereof is preferably within the above range.

[0323] <<Ultraviolet light absorber>>

[0324] The coloring composition of the present invention can contain an ultraviolet absorber. The ultraviolet absorber can use a conjugated diene compound, an aminodiene compound, a salicylic acid compound, a benzophenone compound, a benzotriazole compound, an acrylonitrile compound, a hydroxyphenyl triazine compound, an indole compound, a triazine compound, etc. For details of these, the compounds described in paragraphs 0052 to 0072 of Japanese Patent Publication No. 2012-208374, paragraphs 0317 to 0334 of Japanese Patent Publication No. 2013-068814, and paragraphs 0061 to 0080 of Japanese Patent Publication No. 2016-162946 can be cited, and these contents are incorporated into this specification. As a commercially available product of the ultraviolet absorber, UV-503 (manufactured by DAITO CHEMICAL CO., LTD) can be cited. Examples of benzotriazole compounds include the MYUA series manufactured by MIYOSHI OIL & FAT CO., LTD. (Chemical Industry Daily, February 1, 2016). As the ultraviolet absorber, compounds described in paragraphs 0049 to 0059 of Japanese Patent No. 6268967 can also be used.

[0325] The content of the ultraviolet absorber in the total solid content of the coloring composition is preferably 0.01 to 10% by mass, and more preferably 0.01 to 5% by mass. In the coloring composition of the present invention, only one ultraviolet absorber may be used, or two or more ultraviolet absorbers may be used. When two or more ultraviolet absorbers are used, the total amount thereof is preferably within the above range.

[0326] <<Antioxidants>>

[0327] The coloring composition of the present invention may contain an antioxidant. Examples of the antioxidant include phenolic compounds, phosphite compounds, thioether compounds, and the like. As the phenolic compound, any phenolic compound known as a phenolic antioxidant may be used. Examples of preferred phenolic compounds include hindered phenolic compounds. Compounds having a substituent at a position adjacent to the phenolic hydroxyl group (ortho position) are preferred. As the substituent, a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferred. Furthermore, the antioxidant is also preferably a compound having a phenolic group and a phosphite group in the same molecule. Furthermore, the antioxidant may also preferably use a phosphorus-based antioxidant. Examples of the phosphorus-based antioxidant include tris[2-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphin-6-yl]oxy]ethyl]amine, tris[2-[(4,6,9,11-tetrakis-tert-butyldibenzo[d,f][1,3,2]dioxaphosphin-2-yl)oxy]ethyl]amine, and ethylbis(2,4-di-tert-butyl-6-methylphenyl)phosphite. Commercially available antioxidants include, for example, Adekastab AO-20, Adekastab AO-30, Adekastab AO-40, Adekastab AO-50, Adekastab AO-50F, Adekastab AO-60, Adekastab AO-60G, Adekastab AO-80, and Adekastab AO-330 (all manufactured by ADEKA CORPORATION). As antioxidants, compounds described in 0023 to 0048 of Japanese Patent No. 6268967 can also be used.

[0328] The content of the antioxidant in the total solid content of the coloring composition is preferably 0.01 to 20% by mass, and more preferably 0.3 to 15% by mass. In the coloring composition of the present invention, only one antioxidant may be used, or two or more antioxidants may be used. When two or more antioxidants are used, the total amount thereof is preferably within the above range.

[0329] <<Other ingredients>>

[0330] As required, the coloring composition of the present invention may also contain a sensitizer, a curing accelerator, a filler, a thermosetting accelerator, a plasticizer and other auxiliary agents (for example, conductive particles, fillers, defoamers, flame retardants, leveling agents, peeling accelerators, fragrances, surface tension regulators, chain transfer agents, etc.). The properties such as the physical properties of the film can be adjusted by appropriately containing these ingredients. Regarding these ingredients, for example, the records after paragraph 0183 of Japanese Unexamined Patent Publication No. 2012-003225 (paragraph 0237 of the corresponding U.S. Patent Application Publication No. 2013 / 0034812), the records of paragraphs 0101 to 0104, 0107 to 0109 of Japanese Unexamined Patent Publication No. 2008-250074, etc., can be referred to, and these contents are incorporated into this specification. In addition, as required, the coloring composition of the present invention may also contain a potential antioxidant. As a latent antioxidant, a compound in which a protective group is protected at a position where an antioxidant functions, and a protective group is detached by heating at 100 to 250 ° C or heating at 80 to 200 ° C in the presence of an acid / base catalyst and functions as an antioxidant. As a potential antioxidant, compounds described in International Publication No. 2014 / 021023, International Publication No. 2017 / 030005, and Japanese Patent Publication No. 2017-008219 can be cited. As a commercially available product of a potential antioxidant, ADEKAARKLS GPA-5001 (manufactured by ADEKA CORPORATION) can be cited. In addition, as described in Japanese Patent Publication No. 2018-155881, CI Pigment Yellow 129 can be added to improve weather resistance.

[0331] 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 The primary particle size of the metal oxide is preferably 1 to 100 nm, more preferably 3 to 70 nm, and most preferably 5 to 50 nm. The metal oxide may have a core-shell structure. In this case, the core may be hollow.

[0332] Furthermore, the coloring composition of the present invention may contain a light fastness improving agent. Examples of the light fastness improving agent include compounds described in paragraphs 0036 to 0037 of Japanese Patent Application Publication No. 2017-198787, compounds described in paragraphs 0029 to 0034 of Japanese Patent Application Publication No. 2017-146350, compounds described in paragraphs 0036 to 0037 and 0049 to 0052 of Japanese Patent Application Publication No. 2017-129774, and compounds described in paragraphs 0036 to 0037 and 0049 to 0052 of Japanese Patent Application Publication No. 201 The compounds described in paragraphs 0031 to 0034 and 0058 to 0059 of 7-129674, the compounds described in paragraphs 0036 to 0037 and 0051 to 0054 of JP-A-2017-122803, the compounds described in paragraphs 0025 to 0039 of International Publication No. 2017 / 164127, and JP-A-2017-186546 The compounds described in paragraphs 0034 to 0047 of JP-A-2015-025116, the compounds described in paragraphs 0019 to 0041 of JP-A-2012-145604, the compounds described in paragraphs 0101 to 0125 of JP-A-2012-103475, the compounds described in paragraphs 0018 to 0021 of JP-A-2011- The compounds described in paragraphs 0015 to 0018 of Japanese Patent Application No. 257591, the compounds described in paragraphs 0017 to 0021 of Japanese Patent Application No. 2011-191483, the compounds described in paragraphs 0108 to 0116 of Japanese Patent Application No. 2011-145668, the compounds described in paragraphs 0103 to 0153 of Japanese Patent Application No. 2011-253174, and the like.

[0333] In the coloring composition of the present invention, the content of free metal that is not bonded or coordinated to the pigment is preferably 100 ppm or less, more preferably 50 ppm or less, further preferably 10 ppm or less, and particularly preferably substantially free. According to this embodiment, it is expected that the effects of stabilization of pigment dispersibility (suppression of aggregation), improvement of spectral characteristics accompanying improvement of dispersibility, stabilization of curable components, suppression of conductivity changes accompanying dissolution of metal atoms and metal ions, and improvement of display characteristics can be expected. In addition, the effects described in Japanese Patent Publication No. 2012-153796, Japanese Patent Publication No. 2000-345085, Japanese Patent Publication No. 2005-200560, Japanese Patent Publication No. 08-043620, Japanese Patent Publication No. 2004-145078, Japanese Patent Publication No. 2014-119487, Japanese Patent Publication No. 2010-083997, Japanese Patent Publication No. 2017-090930, Japanese Patent Publication No. 2018-025612, Japanese Patent Publication No. 2018-025797, Japanese Patent Publication No. 2017-155228, Japanese Patent Publication No. 2018-036521, etc. can be obtained. As the types of the above-mentioned free metals, Na, K, Ca, Sc, Ti, Mn, Cu, Zn, Fe, Cr, Co, Mg, Al, Sn, Zr, Ga, Ge, Ag, Au, Pt, Cs, Ni, Cd, Pb, Bi, etc. can be cited. In addition, in the coloring composition of the present invention, the content of free halogens that are not bonded or coordinated to pigments, etc. is preferably 100 ppm or less, more preferably 50 ppm or less, further preferably 10 ppm or less, and particularly preferably substantially free. As halogens, F, Cl, Br, I and their anions can be cited. As methods for reducing free metals and halogens in the coloring composition, methods such as washing based on ion exchange water, filtration, ultrafiltration, and purification based on ion exchange resins can be cited.

[0334] It is also preferred that the colored composition of the present invention contains substantially no terephthalate.

[0335] 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.

[0336] The coloring composition of the present invention can be used by adjusting the viscosity for the purpose of adjusting the film surface shape (flatness, etc.), adjusting the film thickness, etc. The viscosity value can be appropriately selected as needed, but for example, it is preferably 0.3 mPa·s to 50 mPa·s at 23°C, and more preferably 0.5 mPa·s to 20 mPa·s. As a method for measuring the viscosity, for example, a viscometer RE85L manufactured by TOKISANGYO CO., LTD. (rotor: 1°34'×R24, measuring range 0.6 to 1200 mPa·s) can be used, and the temperature can be adjusted to 23°C for measurement.

[0337] When the coloring composition of the present invention is used as a color filter for a liquid crystal display device, the voltage holding rate of the liquid crystal display element with the color filter is preferably 70% or more, more preferably 90% or more. Known methods for obtaining high voltage holding rates can be appropriately incorporated, and typical methods include the use of high-purity raw materials (for example, reduction of ionic impurities) and control of the amount of acidic functional groups in the composition. The voltage holding rate can be measured, for example, by the method described in paragraph 0243 of Japanese Patent Publication No. 2011-008004 and paragraphs 0123 to 0129 of Japanese Patent Publication No. 2012-224847.

[0338] <Storage container>

[0339] As a storage container for the coloring composition of the present invention, there is no particular limitation, and a known storage container can be used. In addition, as a storage container, for the purpose of suppressing the mixing of impurities into the raw materials or the coloring composition, it is also preferred to use a multilayer bottle with a container inner wall composed of 6 kinds of 6 layers of resin or a bottle with 6 kinds of resins as a 7-layer structure. As such a container, for example, the container described in Japanese Patent Publication No. 2015-123351 can be cited. In addition, in order to prevent the dissolution of metal from the inner wall of the container, improve the storage stability of the composition, or suppress the modification of the components, it is also preferred that the inner wall of the coloring composition is made of glass or made of stainless steel. In addition, as the storage conditions of the coloring composition of the present invention, there are no particular limitations, and a known method in the past can be used. In addition, the method described in Japanese Patent Publication No. 2016-180058 can also be used.

[0340] <Method for preparing coloring composition>

[0341] The coloring composition of the present invention can be prepared by mixing the above components. When preparing the coloring composition, all the components can be dissolved and / or dispersed in a solvent at the same time to prepare the coloring composition, or each component can be appropriately prepared as two or more solutions or dispersions as needed, and these can be mixed when used (when applied) to prepare the coloring composition.

[0342] In addition, when preparing the coloring composition, it is also preferred to include a step of dispersing the pigment. In the step of dispersing the pigment, as the mechanical force for the dispersion of the pigment, compression, extrusion, impact, shearing, cavitation, etc. can be cited. As specific examples of these steps, bead milling, sand milling, roller milling, ball milling, paint stirring, micro jet, high-speed impeller, sand mixing, jet stream mixing, high-pressure wet micronization, ultrasonic dispersion, etc. can be cited. In addition, it is preferred that in the pulverization of the pigment under sand milling (bead milling), the following conditions are used to treat, and the conditions are to improve the pulverization efficiency by using microbeads with a small diameter and increasing the filling rate of microbeads. In addition, it is preferred to remove coarse particles by filtering, centrifugation, etc. after the pulverization process. In addition, regarding the step and disperser for dispersing the pigment, it is preferred to use the steps and dispersers described in "The Complete Works of Dispersion Technology, Published by JOHOKIKO CO., LTD., July 15, 2005" or "A Comprehensive Data Collection of Dispersion Technology and Practical Industrial Applications Centered on Suspension (Solid / Liquid Dispersion System), Published by the Business Development Center Publishing Department, October 10, 1978", and 0022 of Japanese Patent Publication No. 2015-157893. In addition, in the process of dispersing the pigment, the particles can be finely processed by a salt milling process. The raw materials, equipment, processing conditions, etc. used in the salt milling process can be referred to, for example, the records in Japanese Patent Publication No. 2015-194521 and Japanese Patent Publication No. 2012-046629.

[0343] When preparing the coloring composition, in order to remove foreign matter or reduce defects, it is preferred to filter the coloring composition with a filter. As a filter, as long as it is a filter that has always been used for filtering purposes, it can be used without particular restrictions. For example, filters using raw materials such as fluororesins such as polytetrafluoroethylene (PTFE), polyamide resins such as nylon (such as nylon-6, nylon-6,6), polyethylene, polypropylene (PP) and polyolefin resins (including high-density, ultra-high molecular weight polyolefin resins) can be cited. Among these raw materials, polypropylene (including high-density polypropylene) and nylon are preferred.

[0344] The pore size of the filter is preferably 0.01 to 7.0 μm, more preferably 0.01 to 3.0 μm, and further preferably 0.05 to 0.5 μm. As long as the pore size of the filter is within the above range, fine foreign matter can be removed more reliably. Regarding the pore size value of the filter, the nominal value of the filter manufacturer can be referred to. Regarding the filter, various filters provided by NIHON PALL LTD. (DFA4201NIEY, etc.), Advantec Toyo Kaisha, Ltd., Japan Entegris Inc. (formerly Japan Microlis Co., Ltd.) and KITZ MICRO FILTER CORPORATION can be used.

[0345] Furthermore, it is also preferable to use a fibrous filter material as the filter. Examples of fibrous filter materials include polypropylene fibers, nylon fibers, and glass fibers. Examples of commercially available products include SBP series (SBP008, etc.), TPR series (TPR002, TPR005, etc.), and SHPX series (SHPX003, etc.) manufactured by ROKI TECHNO CO., LTD.

[0346] When using filters, different filters (e.g., a first filter and a second filter, etc.) may be combined. In this case, filtering with each filter may be performed only once or twice or more. Furthermore, filters with different pore sizes may be combined within the above range. Furthermore, filtering with the first filter may be performed only on the dispersion, and after mixing other components, filtering may be performed with the second filter.

[0347] <Film>

[0348] The film of the present invention is a film obtained by the coloring composition of the present invention described above. The film of the present invention can be used for color filters, etc. Specifically, it can be preferably used as a coloring layer (pixel) of a color filter. As colored pixels, red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, yellow pixels, etc. can be cited. 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 less than 20 μm, more preferably less than 10 μm, and further preferably less than 5 μm. The lower limit of the film thickness is preferably more than 0.1 μm, more preferably more than 0.2 μm, and more preferably more than 0.3 μm.

[0349] <Color filter>

[0350] Next, the color filter of the present invention is described. The color filter of the present invention has the above-mentioned film of the present invention. It is more preferable to have the film of the present invention as a pixel of the color filter. The color filter of the present invention can be used in a solid-state imaging element or image display device such as a CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor).

[0351] In the color filter of the present invention, the film thickness of the film of the present invention can be appropriately adjusted according to the purpose. The film thickness is preferably 20 μm or less, more preferably 10 μm or less, and further 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 further preferably 0.3 μm or more.

[0352] Regarding the color filter of the present invention, the pixel width is preferably 0.5 to 20.0 μm. The lower limit is preferably 1.0 μm or more, and more preferably 2.0 μm or more. The upper limit is preferably 15.0 μm or less, and more preferably 10.0 μm or less. Furthermore, the Young's modulus of the pixel is preferably 0.5 to 20 GPa, and more preferably 2.5 to 15 GPa.

[0353] It is preferred that each pixel contained in the color filter of the present invention has high flatness. Specifically, the surface roughness Ra of the pixel is preferably less than 100 nm, more preferably less than 40 nm, and further preferably less than 15 nm. There is no regulation on the lower limit, for example, it is preferably more than 0.1 nm. Regarding the surface roughness of the pixel, for example, it can be measured using AFM (atomic force microscope) Dimension3100 manufactured by Veeco. In addition, the contact angle with water on the pixel can be set to an appropriately preferred value, but typically in the range of 50 to 110°. The contact angle can be measured, for example, using a contact angle meter CV-DT·A type (manufactured by Kyowa Interface Science Co., LTD.). In addition, it is preferred that the volume resistance value of the pixel is high. Specifically, the volume resistance value of the pixel is preferably 10 9 Ω·cm or more, more preferably 10 11 Ω·cm or more. The upper limit is not specified, but for example, 10 14 The volume resistance value of a pixel can be measured using, for example, an ultra-high resistance meter 5410 (manufactured by ADVANTEST CORPORATION).

[0354] Furthermore, in the color filter of the present invention, a protective layer may be provided on the surface of the film of the present invention. By providing a protective layer, various functions such as oxidation resistance, low reflection, hydrophilicity and hydrophobicity, and shielding of light of a specified wavelength (ultraviolet rays, near infrared rays, etc.) can be imparted. The thickness of the protective layer is preferably 0.01 to 10 μm, and more preferably 0.1 to 5 μm. As a method for forming the protective layer, a method of forming by coating a resin composition dissolved in an organic solvent, a chemical vapor deposition method, a method of attaching a molded resin with an adhesive material, etc. can be cited. Examples of the component constituting the protective layer include (meth) acrylic resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, polyimide resins, polyamideimide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, polyol resins, polyvinylidene chloride resins, melamine resins, polyurethane resins, aromatic polyamide resins, polyamide resins, alkyd resins, epoxy resins, modified silicone resins, fluororesins, polycarbonate resins, polyacrylonitrile resins, cellulose resins, Si, C, W, Al 2 O 3 、Mo、SiO2 、Si 2 N 4 For example, in the case of a protective layer for preventing oxidation, the protective layer preferably contains a polyol resin, SiO 2 and Si 2 N 4 Furthermore, in the case of a protective layer for low reflection, the protective layer preferably contains a (meth)acrylic resin and a fluororesin.

[0355] In the case of forming a protective layer by applying a resin composition, as a coating method of the resin composition, known methods such as spin coating, casting, screen printing, inkjet can be used. The organic solvent contained in the resin composition can use a known organic solvent (for example, propylene glycol 1-monomethyl ether 2-acetate, cyclopentanone, ethyl lactate, etc.). In the case of forming a protective layer by chemical vapor deposition, as chemical vapor deposition, known chemical vapor deposition (thermal chemical vapor deposition, plasma chemical vapor deposition, photochemical vapor deposition) can be used.

[0356] As required, the protective layer may also contain additives such as organic and inorganic microparticles, absorbents of light of a specified wavelength (e.g., ultraviolet rays, near infrared rays, etc.), refractive index adjusters, antioxidants, adhesives, and surfactants. Examples of organic and inorganic microparticles include polymer microparticles (e.g., silicone microparticles, polystyrene microparticles, melamine resin microparticles), titanium oxide, zinc oxide, zirconium oxide, indium oxide, aluminum oxide, titanium nitride, titanium oxynitride, magnesium fluoride, hollow silica, silicon dioxide, calcium carbonate, and barium sulfate. The absorbent of light of a specified wavelength can use a known absorbent. The content of these additives can be appropriately adjusted, but preferably 0.1 to 70% by mass, and more preferably 1 to 60% by mass, relative to the total mass of the protective layer.

[0357] Furthermore, as the protective layer, the protective layers described in 0073 to 0092 of Japanese Patent Application Laid-Open No. 2017-151176 can also be used.

[0358] The color filter may have a base layer. The base layer can also be formed using, for example, a composition obtained by removing a colorant from the coloring composition of the present invention described above. The surface contact angle of the base layer is preferably 20 to 70° when measured with diiodomethane. Furthermore, it is preferably 30 to 80° when measured with water. If 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, for example, by adding a surfactant.

[0359] Furthermore, the green pixel of the color filter may form green by a combination of CI Pigment Green 7, CI Pigment Green 36, CI Pigment Yellow 139 and CI Pigment Yellow 185, or may form green by a combination of CI Pigment Green 58, CI Pigment Yellow 150 and CI Pigment Yellow 185.

[0360] <Method for manufacturing color filter>

[0361] Next, the method for manufacturing a color filter using the coloring composition of the present invention is described. The method for manufacturing a color filter can be manufactured by the following steps: a step of forming a coloring composition layer on a support using the coloring composition of the present invention described above; and a step of forming a pattern on the coloring composition layer by photolithography or dry etching. The coloring composition of the present invention can also suppress the generation of development residues, and is therefore particularly effective in the case of manufacturing a color filter by forming a pattern on a coloring composition layer by photolithography.

[0362] (Photolithography)

[0363] First, the case of manufacturing a color filter by forming a pattern by photolithography is described. The manufacturing method preferably includes the following steps: a step of forming a colored composition layer on a support using the colored composition of the present invention; a step of exposing the colored composition layer to a pattern; and a step of developing and removing the unexposed portion of the colored composition layer to form a pattern (pixel). If necessary, a step of baking the colored composition layer (pre-baking step) and a step of baking the developed pattern (pixel) (post-baking step) may also be provided.

[0364] In the process of forming the colored composition layer of the present invention, a colored composition is used to form a colored composition layer on a support. As a support, there is no particular limitation and it can be appropriately selected according to the purpose. For example, a glass substrate, a silicon substrate, etc. can be mentioned, preferably a silicon substrate. In addition, a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a transparent conductive film, etc. can be formed on the silicon substrate. In addition, a black matrix (blackmatrix) is sometimes formed on the silicon substrate to isolate each pixel. In addition, in order to improve the adhesion with the upper layer, prevent the diffusion of substances or the flattening of the substrate surface, a base layer can be provided on the silicon substrate. The base layer can also be formed using a composition in which a colorant is removed from the colored composition described in this specification or a composition containing a resin, a polymerizable compound, a surfactant, etc. described in this specification.

[0365] As a coating method of the coloring composition, a known method can be used. For example, drop coating (drop casting); slit coating; spray coating; roll coating; spin coating (spin coating); cast coating; slit spin coating; pre-wetting method (for example, the method described in Japanese Patent Publication No. 2009-145395); various printing methods such as inkjet (for example, on-demand method, piezoelectric method, thermal method), nozzle jetting, flexographic printing, screen printing, gravure printing, reverse offset printing, metal mask printing, etc.; transfer method using a mold, etc.; nanoimprinting method, etc. There is no particular limitation on the applicable method in inkjet, and examples thereof include the method described in "Inkjet that can be promoted and used - Infinite possibilities appearing in patents -, published in February 2005, SumitbeTechon Research Co., Ltd." (particularly pages 115 to 133) or Japanese Patent Application Publication No. 2003-262716, Japanese Patent Application Publication No. 2003-185831, Japanese Patent Application Publication No. 2003-261827, Japanese Patent Application Publication No. 2012-126830, Japanese Patent Application Publication No. 2006-169325, etc. In addition, regarding the coating method of the coloring composition, reference can be made to the descriptions of International Publication No. 2017 / 030174 and International Publication No. 2017 / 018419, and these contents are incorporated into this specification.

[0366] The colored composition layer formed on the support can be dried (prebaked). In the case of manufacturing the film by a low-temperature step, prebaking may not be performed. When prebaking is performed, the prebaking temperature is preferably below 150°C, more preferably below 120°C, and further preferably below 110°C. The lower limit can be set to above 50°C, for example, and can also be set to above 80°C. The prebaking time is preferably 10 to 300 seconds, more preferably 40 to 250 seconds, and further preferably 80 to 220 seconds. Prebaking can be performed using a hot plate, an oven, or the like.

[0367] <<Exposure process>>

[0368] Next, the colored composition layer is exposed in a pattern (exposure step). For example, a stepper, a scanner, etc. are used to expose the colored composition layer through a mask having a predetermined mask pattern, so that the colored composition layer can be exposed in a pattern. Therefore, the exposed portion can be cured.

[0369] As radiation (light) that can be used for exposure, g-rays, i-rays, etc. can be cited. In addition, light with a wavelength of 300nm or less (preferably light with a wavelength of 180 to 300nm) can also be used. As light with a wavelength of 300nm or less, KrF rays (wavelength 248nm), ArF rays (wavelength 193nm), etc. can be cited, preferably KrF rays (wavelength 248nm). In addition, a light source with a long wavelength of 300nm or more can also be used.

[0370] Furthermore, during exposure, the light may be continuously irradiated for exposure or pulsed for exposure (pulse exposure). In addition, pulse exposure refers to an exposure method in which light is repeatedly irradiated and paused in a short time (e.g., less than millisecond level) cycle to expose.

[0371] The irradiation amount (exposure amount) is preferably 0.03 to 2.5 J / cm 2 , more preferably 0.05 to 1.0 J / cm 2 The oxygen concentration during exposure can be appropriately selected. In addition to exposure under the atmosphere, exposure can be performed under a low oxygen environment with an oxygen concentration of 19% by volume or less (e.g., 15% by volume, 5% by volume, or substantially oxygen-free), or under a high oxygen environment with an oxygen concentration exceeding 21% by volume (e.g., 22% by volume, 30% by volume, or 50% by volume). Furthermore, the exposure illuminance can be appropriately set, and can generally be from 1000 W / m 2 ~100000W / m 2 (For example, 5000W / m 2 、15000W / m 2 or 35000W / m 2 The oxygen concentration and exposure illuminance can be appropriately combined, for example, the oxygen concentration can be set to 10% by volume and the illuminance can be set to 10000 W / m 2 , oxygen concentration 35 volume % and illumination 20000W / m 2 wait.

[0372] Next, the unexposed portion of the colored composition layer is removed by development to form a pattern (pixel). The development and removal of the unexposed portion of the colored composition layer can be performed using a developer. Therefore, the unexposed portion of the colored composition layer in the exposure process is dissolved in the developer, and only the photocured portion remains. As a developer, an organic alkaline developer that does not damage the components or circuits of the substrate is ideal. The temperature of the developer is preferably 20 to 30°C, for example. The development time is preferably 20 to 180 seconds. In addition, in order to improve the removability of the residue, the process of shaking off the developer every 60 seconds and then supplying a new developer can be repeated multiple times.

[0373] The developer may include an organic solvent, an alkali developer, etc., and an alkali developer may be preferably used. As the alkali developer, an alkaline aqueous solution (alkaline developer) obtained by diluting an alkali agent with pure water is preferred. As the alkali agent, for example, organic alkaline compounds such as ammonia, ethylamine, diethylamine, dimethylethanolamine, diglycolamine, diethanolamine, hydroxylamine, ethylenediamine, tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetrabutylammonium hydroxide, ethyltrimethylammonium hydroxide, benzyltrimethylammonium hydroxide, dimethylbis(2-hydroxyethyl)ammonium hydroxide, choline, pyrrole, piperidine, 1,8-diazabicyclo[5.4.0]-7-undecene, or inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, sodium silicate, and sodium metasilicate may be mentioned. In terms of environment and safety, the alkali agent is preferably a compound with a large molecular weight. The concentration of the alkali agent in the alkaline aqueous solution is preferably 0.001 to 10% by mass, more preferably 0.01 to 1% by mass. Furthermore, the developer may further contain a surfactant. As a surfactant, the above-mentioned surfactants can be cited, preferably a nonionic surfactant. From the viewpoint of convenient transportation or storage, the developer can be temporarily manufactured into a concentrated solution and diluted to the desired concentration when used. The dilution ratio is not particularly limited, for example, it can be set in the range of 1.5 to 100 times. Moreover, it is also preferred to wash (rinse) with pure water after development. Moreover, it is preferred to rotate the support on which the developed coloring composition layer is formed, and to supply a rinsing liquid to the developed coloring composition layer for rinsing. Moreover, it is also preferred to move the nozzle spraying the rinsing liquid from the center of the support to the peripheral portion of the support. At this time, when the nozzle moves from the center of the support to the peripheral portion, it can be moved while gradually reducing the moving speed of the nozzle. By rinsing in this way, the in-plane deviation of the rinsing can be suppressed. Moreover, the same effect can be obtained by gradually reducing the rotation speed of the support while moving the nozzle from the center of the support to the peripheral portion.

[0374] After development, it is preferred to perform additional exposure treatment and heating treatment (post-baking) after drying. Additional exposure treatment and post-baking are used to make a curing treatment after development that is fully cured. The heating temperature in the post-baking is preferably 100 to 240°C, more preferably 200 to 240°C. The developed film can be post-baked in a continuous or intermittent manner using a heating mechanism such as a heating plate or a convection oven (hot air circulation dryer), a high-frequency heater, etc. in a manner that achieves the above conditions. In the case of performing additional exposure treatment, the light used for exposure is preferably light with a wavelength of less than 400nm. In addition, the additional exposure treatment can be performed by the method described in Korean Patent Gazette No. 10-2017-0122130.

[0375] (Dry Etching Method)

[0376] Next, the case of manufacturing a color filter by forming a pattern by dry etching is described. The pattern formation based on the dry etching method preferably includes the following steps: 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 layer; forming a photoresist layer on the cured layer; exposing the photoresist layer to a pattern, and then developing to form a resist pattern; and using the resist pattern as a mask and using an etching gas to dry-etch the cured layer. Preferably, when forming the photoresist layer, a pre-baking treatment is further performed. In particular, as a step of forming the photoresist layer, it is preferred to perform a heat treatment after exposure and a heat treatment after development (post-baking treatment). Regarding the pattern formation using the dry etching method, reference can be made to the description of paragraphs 0010 to 0067 of Japanese Patent Publication No. 2013-064993, and the content is incorporated into this specification.

[0377] <Solid-state imaging device>

[0378] The solid-state imaging device of the present invention has the above-mentioned film of the present invention. The structure of the solid-state imaging device of the present invention is not particularly limited as long as it has the film of the present invention and functions as a solid-state imaging device, and examples thereof include the following structures.

[0379] The structure of the imaging element is as follows: a substrate has a plurality of photodiodes and a transfer electrode composed of polysilicon and the like constituting a light-receiving area of ​​a solid-state imaging element (CCD (charge coupled device) image sensor, CMOS (complementary metal oxide semiconductor) image sensor, etc.), a light-shielding film having only an opening for the light-receiving portion of the photodiode is provided on the photodiode and the transfer electrode, a device protection film composed of silicon nitride and the like formed in a manner covering the entire surface of the light-shielding film and the light-receiving portion of the photodiode is provided on the light-shielding film, and a color filter is provided on the device protection film. Furthermore, it may be a structure in which a focusing mechanism (for example, a microlens, etc., the same applies hereinafter) is provided on the device protection film and on the lower side of the color filter (the side close to the substrate), or a structure in which a focusing mechanism is provided on the color filter. Furthermore, the color filter may also have a structure in which each color pixel is embedded in a space separated by a partition wall, for example, in a grid shape. In this case, the partition wall preferably has a lower refractive index than each color pixel. As examples of imaging devices having such a structure, there can be cited the devices described in Japanese Patent Publication No. 2012-227478, Japanese Patent Publication No. 2014-179577, International Publication No. 2018 / 043654, and U.S. Patent Application Publication No. 2018 / 0040656. In addition to being able to be used as a digital camera or an electronic device with an imaging function (such as a mobile phone), the imaging device having the solid-state imaging element of the present invention can also be used as a vehicle-mounted camera or a surveillance camera.

[0380] <Image display device>

[0381] The image display device of the present invention has the above-mentioned film of the present invention. As the image display device, a liquid crystal display device or an organic electroluminescent display device can be cited. The definition of the image display device or the details of each image display device are recorded in, for example, "Electronic Display Device (written by Akio Sasaki, Kogyo Chosakai Publishing Co., Ltd., published in 1990)", "Display Device (written by Junsho Ibuki, Sangyo Tosho Publishing Co., Ltd., published in 1989)" and the like. In addition, regarding the liquid crystal display device, it is recorded in, for example, "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, Kogyo Chosakai Publishing Co., Ltd., published in 1994)". There is no particular limitation on the liquid crystal display device to which the present invention can be applied, 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".

[0382] Example

[0383] Below, give embodiment and the present invention is further specifically described.The material, usage amount, ratio, processing content, processing sequence etc. shown in the following embodiment can be appropriately changed as long as it does not depart from the purpose of the present invention.Therefore, the scope of the present invention is not limited to the specific example shown below.

[0384] <Preparation of Pigment Dispersion>

[0385] After mixing the raw materials listed in the following table, 230 parts by mass of zirconium dioxide beads having a diameter of 0.3 mm were added, and a dispersion treatment was performed for 5 hours using a paint stirrer, and the beads were separated by filtration to produce a dispersion liquid. The values ​​listed in the following table are parts by mass. In addition, the values ​​of the parts by mass of the pigment and the dispersant are the values ​​of the solid content.

[0386] [Table 1]

[0387]

[0388] The details of the raw materials represented by the abbreviations in the above table are as follows.

[0389] (pigment)

[0390] Pg-1:CI Pigment Blue15:6

[0391] Pg-2: CI Pigment Red254

[0392] Pg-3:CI Pigment Yellow139

[0393] Pg-4:CI Pigment Yellow150

[0394] Pg-5: CI Pigment Violet23

[0395] (Dispersant)

[0396] D-1: DISPERBYK-161 (manufactured by BYK Chemie GmbH)

[0397] D-2: Resin having the following structure (the numerical value marked on the main chain is the molar ratio of the repeating unit. Mw = 11000)

[0398] [Chemical formula 25]

[0399]

[0400] (Solvent)

[0401] S-1: Propylene glycol monomethyl ether acetate (PGMEA)

[0402] <Preparation of Coloring Composition>

[0403] The raw materials listed in the following table, 0.0007 parts by mass of a polymerization inhibitor (p-methoxyphenol) and 2.50 parts by mass of a fluorine-based surfactant (DIC CORPORATION, MEGAFACE F475, 1% PGMEA solution) were mixed to obtain a coloring composition. The colorant concentration in the table is the value of the colorant content in the total solid content of the coloring composition, the dye content is the value of the dye content in the colorant, (AZ - +BZ - ) / AX + (molar ratio) is {(the anion A Z of the dye - The number of moles of + anion BZ of the ionic compound - mole number) / cation AX of dye + The value of the number of moles}.

[0404]

[0405]

[0406]

[0407]

[0408]

[0409]

[0410]

[0411] The details of the raw materials represented by the abbreviations in the above table are as follows.

[0412] (dye solution)

[0413] A-1: A cyclohexanone solution (solid content: 12.3% by mass) of a dye (weight average molecular weight = 7000) having the following structure. In the following structural formula, n is 3 and m is 3.

[0414] [Chemical formula 26]

[0415]

[0416] A-2: Cyclohexanone solution of a dye (molecular weight = 704.24) having the following structure (solid content 12.3% by mass)

[0417] [Chemical formula 27]

[0418]

[0419] A-3: Cyclohexanone solution (solid content: 12.3% by mass) of a dye having the following structure (weight average molecular weight = 10,000)

[0420] [Chemical formula 28]

[0421]

[0422] A-4: Cyclohexanone solution (solid content 12.3% by mass) of a dye having the following structure (weight average molecular weight = 1115.28)

[0423] [Chemical formula 29]

[0424]

[0425] A-5: Cyclohexanone solution (solid content 12.3% by mass) of a dye having the following structure (weight average molecular weight = 1165.32)

[0426] [Chemical formula 30]

[0427]

[0428] A-6: Cyclohexanone solution (solid content: 12.3% by mass) of a dye having the following structure (weight average molecular weight = 774.97)

[0429] [Chemical formula 31]

[0430]

[0431] A-7: Cyclohexanone solution (solid content 12.3% by mass) of a dye having the following structure (weight average molecular weight = 410.52)

[0432] [Chemical formula 32]

[0433]

[0434] A-8: Cyclohexanone solution of CIAcid red 289 (molecular weight = 676.73, xanthene dye) (solid content 12.3% by mass)

[0435] (Dispersion liquid)

[0436] Dispersions 1 to 5: Dispersions 1 to 5 mentioned above

[0437] (Ionic Compounds)

[0438] B-1: Potassium bis(trifluoromethanesulfonyl)imide (molecular weight: 320.24, pKa of the conjugate acid of the anion: -11.9)

[0439] B-2: Potassium N,N-hexafluoropropane-1,3-disulfonylimide (molecular weight: 332.25, pKa of the conjugate acid of the anion: -13.1)

[0440] B-3: Potassium N,N-bis(nonafluorobutanesulfonyl)imide (molecular weight: 619.28)

[0441] B-4: 1-butylpyridinium bis(trifluoromethanesulfonyl)imide (molecular weight: 416.35, pKa of the conjugate acid of the anion: -11.9)

[0442] B-5: lithium tris(trifluoromethanesulfonyl)methide (molecular weight: 419.15, pKa of the conjugate acid of the anion: -16.4)

[0443] B-8: Lithium bis(trifluoromethanesulfonyl)imide (molecular weight: 288.08, pKa of the conjugate acid of the anion: -11.9)

[0444] B-9: lithium tetrakis(pentafluorophenyl)borate (molecular weight: 685.98)

[0445] B-10: Lithium hexafluorophosphate (molecular weight: 151.9)

[0446] B-11: lithium tetrafluoroborate (molecular weight: 93.74, pKa of the conjugate acid of the anion: -10.3)

[0447] The pKa of the conjugate acid of the anion of the ionic compound is a value described in J. Org. Chem. 2011, 76, 391-395.

[0448] Then, each ionic compound was dissolved in water to prepare a measurement solution, and the absorbance of these solutions at 25° C. was measured using a cell having an optical path length of 1 cm. The maximum absorption wavelength in the range of 400 to 700 nm was obtained from the above formula (A λ ) are all below 5.

[0449] (resin)

[0450] P-1: 30 mass% propylene glycol monomethyl ether acetate (PGMEA) solution of the resin having the following structure (the numerical value indicated on the main chain is the molar ratio of the repeating unit. Mw=11000)

[0451] [Chemical formula 33]

[0452]

[0453] P-2: 40 mass % PGMEA solution of the resin of the following structure (the numerical value indicated on the main chain is the molar ratio of the repeating unit. Mw=11000)

[0454] [Chemical formula 34]

[0455]

[0456] P-3: 30 mass % PGMEA solution of the resin of the following structure (the numerical value marked on the main chain is the molar ratio of the repeating unit, and the numerical value marked on the side chain is the number of repeating units. Mw = 11000)

[0457] [Chemical formula 35]

[0458]

[0459] P-4: 40 mass % PGMEA solution of the resin of the following structure (the numerical value marked on the main chain is the molar ratio of the repeating unit. Mw = 11000)

[0460] [Chemical formula 36]

[0461]

[0462] [Polymerizable compound]

[0463] M-1: dipentatriol hexaacrylate, NK ESTER A-DPH-12E (manufactured by Shin-Nakamura Chemical Co., Ltd.)

[0464] M-2: Compound with the following structure

[0465] [Chemical formula 37]

[0466]

[0467] M-3: Compound with the following structure

[0468] [Chemical formula 38]

[0469]

[0470] (Photopolymerization Initiator)

[0471] I-2: Irgacure OXE02 (manufactured by BASF)

[0472] (Solvent)

[0473] S-2: Cyclohexanone

[0474] <Evaluation>

[0475] (Evaluation of Aggregate Size)

[0476] Each coloring composition was applied to an 8-inch (20.32 cm) silicon wafer by spin coating so that the film thickness after post-baking was the film thickness described in the following table. Then, the film was heated at 100°C for 2 minutes using a hot plate. Then, an i-ray stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.) was used at 1000 mJ / cm 2 The entire surface was exposed to light of a wavelength of 365 nm at an exposure amount of 1.5 %. Next, a heat treatment (post-baking) was performed for 300 seconds using a hot plate at 220° C., thereby forming a film.

[0477] After the silicon crystal having the above-mentioned film was immersed in acetone at 23°C for 5 minutes, the film cross-section was observed using an ultra-high resolution scanning electron microscope (manufactured by Hitachi High-Technologies Corporation) at an acceleration voltage of 2.0 kV and an observation magnification of 50,000 times. The lengths of the long axis direction of the perforation shapes at any three locations were measured, and the average value was calculated as the perforation size.

[0478] The dyes A-1 to A-8 are compounds soluble in acetone at 23° C. Therefore, the aggregation size of the dye corresponds to the pore size in the film, which means that the smaller the pore size, the smaller the aggregation size of the dye.

[0479] A: No perforation was found at all

[0480] B: Almost no perforation can be confirmed

[0481] C: Slight perforation is detected, but there is no problem in practical use

[0482] D: Multiple confirmed perforations

[0483] (Evaluation of development residue, defect, and pattern linearity)

[0484] CT-4000L (manufactured by FUJIFILM Electronic Materials Co., Ltd.) was applied to an 8-inch (20.32 cm) silicon wafer using a spin coater so that the thickness after post-baking was 0.1 μm, and a base coat was formed by heating at 220°C for 300 seconds using a hot plate, thereby obtaining a silicon wafer (support) with a base coat. Next, each coloring composition was applied by spin coating so that the film thickness after post-baking was the film thickness described in the following table. Next, a hot plate was used to heat at 100°C for 2 minutes. Next, an i-ray stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.) was used at 1000 mJ / cm 2 The exposure amount was exposed to light of a wavelength of 365nm through a mask of a 1.0μm square dot pattern. Next, the silicon wafer formed with the exposed coating film was placed on the horizontal turntable of a spin / spray developer (DW-30 model, manufactured by CHEMITRONICSCO., Ltd.), and a 60% dilution of CD-2000 (manufactured by FUJIFILM Electronic Materials Co., Ltd.) was used for 60 seconds of spin immersion development at 23°C, thereby forming a colored pattern on the silicon wafer. The silicon wafer formed with the colored pattern was fixed to a horizontal turntable by a vacuum suction cup method, and the silicon wafer was rotated at a rotation speed of 50rpm by a rotating device while pure water was supplied from a spray nozzle above its rotation center in a spray state for rinsing, and then spray drying was performed. Furthermore, a heating treatment (post-baking) was performed for 300 seconds using a 200°C hot plate to form a colored pattern (colored pixel).

[0485] The silicon wafer on which the colored pattern was formed was observed with a scanning electron microscope (SEM) (magnification: 10,000 times), and development residue, defect, and pattern linearity were evaluated according to the following evaluation criteria.

[0486] - Evaluation criteria for development residue -

[0487] A: No residue was observed at all outside the formation region of the colored pattern (unexposed portion).

[0488] B: Residues were confirmed very slightly outside the formation region of the colored pattern (unexposed portion), but the degree was not a problem in practical use.

[0489] C: Although residues were slightly observed outside the formation region of the colored pattern (unexposed portion), the amount was not a problem in practical use.

[0490] D: Residues were significantly observed outside the formation region of the colored pattern (unexposed portion).

[0491] - Evaluation criteria for defects -

[0492] A: No chipping was observed at all at the edge of the colored pattern.

[0493] B: A chip was slightly observed at the edge of the colored pattern, but it was not a problem in practical use.

[0494] C: Although a slight chip was observed at the edge of the colored pattern, it was not a problem in practical use.

[0495] D: Defects were significantly observed at the edge of the colored pattern.

[0496] - Evaluation criteria for pattern linearity -

[0497] A: A pattern with a line width of 1.0 μm was formed with good linearity.

[0498] B: In the pattern with a line width of 1.0 μm, peeling was rarely observed, but it was a level that did not cause any problem in practical use.

[0499] C: In the pattern with a line width of 1.0 μm, peeling was slightly observed, but it was not a problem in practical use.

[0500] D: A pattern with a line width of 1.0 μm was formed, but an undeveloped portion existed.

[0501] The evaluation results are shown in the following table. In addition, the values ​​of the film thickness required to achieve the intended spectroscopy of the film formed using each coloring composition are also shown in the following table.

[0502] [Table 9]

[0503]

[0504] [Table 10]

[0505]

[0506] [Table 11]

[0507]

[0508] As shown in the above table, in Examples, the evaluation of the aggregate size was good, and a film in which the generation of aggregates derived from the dye was suppressed was formed.

[0509] In Examples 5, 14, 17, 21, 24, 27, 30, and 33, even when the ionic compound B-5 is replaced with the same amount of the ionic compound B-6 or B-7, the same effects as those of these Examples can be obtained.

[0510] Ionic compound B-6: potassium tris(trifluoromethanesulfonyl)methylate (molecular weight: 451.31, pKa of the conjugate acid of the anion: -16.4)

[0511] Ionic compound B-7: Cesium tris(trifluoromethanesulfonyl)methylate (molecular weight: 545.11, pKa of the conjugate acid of the anion: -16.4)

[0512] In addition, ionic compound B-6 and ionic compound B-7 were dissolved in water to prepare measurement solutions. The absorbance of these solutions at 25°C was measured using a cell with an optical path length of 1 cm. The maximum absorption wavelength in the range of 400 to 700 nm was obtained from the above formula (A λ ) are all below 5.

[0513] (Example 1001)

[0514] The green coloring composition was applied to the silicon wafer by spin coating so that the film thickness after film formation was 1.0 μm. Then, the film was heated at 100° C. for 2 minutes using a hot plate. Then, an i-ray stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.) was used at 1000 mJ / cm 2 The exposure amount was exposed through a mask of a 2μm square dot pattern. Next, a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH) was used to perform spin immersion development at 23°C for 60 seconds. Then, it was rinsed by spin spraying and further washed with pure water. Next, a hot plate was used to heat at 200°C for 5 minutes, so that the green coloring composition was patterned to form green pixels. Similarly, the red coloring composition and the blue coloring composition were patterned by the same steps to form red pixels and blue pixels in sequence, thereby forming a color filter having green pixels, red pixels and blue pixels. In the color filter, the green pixel is formed in a Bayer pattern, and in the adjacent area, the red pixel and the blue pixel are formed in an island pattern. As the green coloring composition, the coloring composition of Example 1 was used. As the red coloring composition, the coloring composition of Example 13 was used. As the blue coloring composition, the coloring composition of Example 32 was used.

Claims

1. A coloring composition comprising: Colorant A1, which contains dye A, wherein the dye A contains cation AX having a pigment structure + and anion AZ - ;and Ionic compound B, which is a cation BX + With anion BZ - of salt, The pigment structure is selected from the group consisting of a xanthene pigment structure, a cyanine pigment structure and a squarylium pigment structure, In the dye A, the cationic AX + and anion AZ - Bonded by covalent bonds, The dye A is a pigment polymer, and the weight average molecular weight of the pigment polymer is 2000 to 50000. The ionic compound B has a maximum absorption wavelength in the range of 400 nm to 700 nm and is represented by the following formula (A λ ) is less than 5, The coloring composition contains 40% by mass or more of the coloring agent A1 in the total solid content. The cation AX of the dye A + The molar number of the anion AZ of the dye A - The molar number of the anion BZ of the ionic compound B - The number of moles satisfies the following relationship (1): 1.05≤{(anion AZ of dye A - moles of + anion BZ of ionic compound B - molar number) / cation AX of dye A + Number of moles}≤5.00(1) E=A / (c×l)(A λ ) Formula (A λ ), E represents the specific absorbance of the ionic compound B at the maximum absorption wavelength in the range of 400 nm to 700 nm, A represents the absorbance of the ionic compound B at the maximum absorption wavelength in the wavelength range of 400 nm to 700 nm, l represents the slot length in cm, c represents the concentration of the ionic compound B in the solution expressed in mg / ml.

2. The coloring composition according to claim 1, wherein The colorant A1 contains the dye A in an amount of 5% by mass or more.

3. The coloring composition according to claim 1 or 2, wherein The colorant A1 further contains a pigment.

4. The coloring composition according to claim 1 or 2, wherein The cation AX of the dye A + It is a cation containing a xanthene pigment structure.

5. The coloring composition according to claim 1 or 2, wherein The anion AZ of the dye A - It is a methylated anion or an imide anion.

6. The coloring composition according to claim 1 or 2, wherein The anion AZ of the dye A - It is a sulfonyl imide anion.

7. The coloring composition according to claim 1 or 2, wherein The cation BX of the ionic compound B + It is a cation of a typical metal atom of the monomer, a carbocation, an ammonium cation, a phosphonium cation or a sulfonium cation.

8. The coloring composition according to claim 1 or 2, wherein The anion BZ of the ionic compound B - The pKa of the conjugate acid is below 0. 9 . The colored composition according to claim 1 , further comprising a polymerizable compound and a photopolymerization initiator. 10 . A film obtained by using the colored composition according to claim 1 or 2 . A color filter comprising the film according to claim 10 . 12 . A solid-state imaging element comprising the film according to claim 10 . 13 . An image display device comprising the film according to claim 10 .

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