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

Abstract

To provide a coloring composition capable of forming a film having excellent storage stability and excellent adhesiveness with a support.SOLUTION: Provided is a coloring composition for a solid-state imaging element, including a pigment, a compound having a triazine ring, a polymerizable compound, and a photopolymerization initiator, in which the pigment is contained in an amount of 50 mass% or more in the total solid content of the coloring composition, and the compound having a triazine ring includes at least one group selected from an acid group or a basic group, and the maximum value of a molar absorption coefficient of the compound having a triazine ring in the wavelength range of 400 to 700 nm is 3000 L mol-1 cm-1 or less.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a coloring composition containing a pigment. The present invention also relates to a film, a color filter, and a solid-state imaging device using the coloring composition. [Background technology]

[0002] In recent years, the demand for solid-state imaging devices such as charge-coupled device (CCD) image sensors has increased significantly due to the popularity of digital cameras, camera-equipped mobile phones, etc. Color filters are used as key devices in displays and optical elements.

[0003] A color filter is manufactured using a coloring composition containing a colorant and a polymerizable compound. In addition, when a pigment is used as a colorant, the pigment is generally dispersed in the coloring composition using a dispersant or the like.

[0004] Patent Document 1 describes an invention relating to a coloring composition that contains a pigment dispersion composition produced by dispersing a specific triazine compound and a pigment in an organic solvent, a binder polymer having an acid group, a polyfunctional monomer having two or more ethylenically unsaturated double bonds, and a photopolymerization initiator.

[0005] Patent Document 2 describes an invention relating to a coloring composition for color filters that contains a pigment carrier, an isoindoline pigment, an azo pigment, a phthalocyanine pigment, a triazine derivative having a basic group, and the like. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2003-081972 A [Patent Document 2] JP 2005-173287 A Summary of the Invention [Problem to be solved by the invention]

[0007] In recent years, there has been a strong demand for smaller and thinner solid-state imaging devices. For this reason, there has been a demand for thinner films containing pigments, such as color filters, used in solid-state imaging devices.

[0008] In order to achieve a thin film while maintaining the desired spectral performance, it is necessary to increase the pigment concentration in the coloring composition used to form the film.

[0009] However, when the pigment concentration in the coloring composition is increased, the content of components other than the pigment is relatively decreased, so the dispersibility of the pigment in the coloring composition tends to decrease. Therefore, the viscosity of the coloring composition is likely to increase over time, and there is room for improvement in the storage stability of the coloring composition. In addition, when the pigment concentration in the coloring composition is increased, the curability of the coloring composition is also likely to decrease, and there is also room for further improvement in the adhesion of the film obtained by using the coloring composition to the support.

[0010] Therefore, an object of the present invention is to provide a coloring composition capable of forming a film having excellent storage stability and excellent adhesion to a support, and to provide a film, a color filter, and a solid-state imaging device using the coloring composition. [Means for solving the problem]

[0011] According to the inventor's investigations, it was found that the above object can be achieved by the following configuration, and the present invention was completed. <1> A coloring composition for a solid-state imaging device, comprising a pigment, a compound having a triazine ring, a polymerizable compound, and a photopolymerization initiator, The pigment is contained in the total solid content of the coloring composition in an amount of 50% by mass or more, The compound having a triazine ring contains at least one group selected from an acid group and a basic group, and has a maximum molar absorption coefficient of 3000 L mol -1 ·cm -1 Below is the Colored composition. <2> The compound having a triazine ring contains two or more triazine rings in one molecule. <1> The coloring composition according to claim 1. <3> The compound having a triazine ring includes a group represented by the following formula (C1): <1> or <2> A coloring composition according to claim 1 ; [ka] In the formula, the wavy line represents a linker, and Lc 1 and Lc 2 Rc each independently represents a single bond or a linking group; 1 and Rc 2 Each independently represents a substituent; Rc 1 and Rc 2 At least one of represents an acid group or a basic group. <4> The group represented by the above formula (C1) is a group represented by the following formula (C2): <3> A coloring composition according to claim 1 ; [ka] In the formula, the wavy line represents a linker, and Lc 11 and Lc 12 Rc each independently represents a single bond or a linking group; 11 and Rc 12 Rc each independently represents a hydrogen atom or a substituent. 13 and Rc 14 Each independently represents a substituent; Rc 13 and Rc 14 At least one of represents an acid group or a basic group. <5> The group represented by the above formula (C1) is a group represented by the following formula (C3): <3> A coloring composition according to claim 1 ; [ka] In the formula, the wavy line represents a linker, and Lc 21 and Lc 22 Rc each independently represents a single bond or a linking group; 21 and Rc 22Rc each independently represents a hydrogen atom or a substituent. 23 ~Rc 26 Rc each independently represents a hydrogen atom or a substituent. 23 and Rc 24 may be bonded via a divalent group to form a ring, Rc 25 and Rc 26 may be bonded via a divalent group to form a ring. <6> The pigment is an organic pigment. <1> ~ <5> 13. The coloring composition according to claim 12, <7> The pigment is a chromatic pigment. <1> ~ <6> 13. The coloring composition according to claim 12, <8> The pigment comprises a phthalocyanine pigment. <1> ~ <7> 13. The coloring composition according to claim 12, <9> The pigment comprises a green pigment. <1> ~ <8> 13. The coloring composition according to claim 12, <10> The photopolymerization initiator includes an oxime compound. <1> ~ <9> 13. The coloring composition according to claim 12, <11> Contains an alkali-soluble resin, <1> ~ <10> 13. The coloring composition according to claim 12, <12> Contains a resin having an aromatic carboxyl group, <1> ~ <11> 13. The coloring composition according to claim 12, <13> <1> ~ <12> A film obtained from the coloring composition described in any one of the above. <14> <13> A color filter having the film according to claim 1. <15> <13> A solid-state imaging device having the film according to claim 1. Effect of the Invention

[0012] According to the present invention, it is possible to provide a coloring composition capable of forming a film having excellent storage stability and excellent adhesion to a support. In addition, the present invention can provide a film, a color filter, and a solid-state imaging device using the coloring composition. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The present invention will be described in detail below. In this specification, the symbol "to" is used to mean that the numerical values ​​before and after it are included as the lower limit and upper limit. In the description of groups (atomic groups) in this specification, when there is no indication of substitution or non-substitution, the notation includes both groups (atomic groups) that have no substituents and groups (atomic groups) that have a substituent. For example, an "alkyl group" includes not only an alkyl group that has no substituents (unsubstituted alkyl group) but also an alkyl group that has a substituent (substituted alkyl group). In this specification, unless otherwise specified, "exposure" includes not only exposure using light but also drawing using particle beams such as electron beams and ion beams. Examples of light used for exposure include the bright line spectrum of a mercury lamp, far ultraviolet light represented by an excimer laser, extreme ultraviolet light (EUV light), X-rays, active rays or radiation such as electron beams. In this specification, "(meth)acrylate" refers to both or either of acrylate and methacrylate, "(meth)acryl" refers to both or either of acryl and methacryl, and "(meth)acryloyl" refers to both or either of acryloyl and methacryloyl. In this specification, Me in the structural formulae represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group. In this specification, the weight average molecular weight and the number average molecular weight are values ​​calculated as polystyrene standards measured by GPC (gel permeation chromatography). In this specification, near-infrared light refers to light with a wavelength of 700 to 2500 nm. In this specification, the total solids content refers to the total mass of all components of the composition excluding the solvent. In this specification, the pigment means a compound that is difficult to dissolve in a solvent. For example, the solubility of the pigment in 100 g of water at 23° C. and 100 g of propylene glycol monomethyl ether acetate at 23° C. is preferably 0.1 g or less, more preferably 0.01 g or less. In this specification, the term "process" refers not only to an independent process, but also to a process that cannot be clearly distinguished from other processes, as long as the intended effect of the process is achieved.

[0014] <Coloring composition> The coloring composition of the present invention comprises A coloring composition for a solid-state imaging device, comprising a pigment, a compound having a triazine ring, a polymerizable compound, and a photopolymerization initiator, The coloring composition contains a pigment in an amount of 50% by mass or more based on the total solid content of the coloring composition, The compound having a triazine ring contains at least one group selected from an acid group and a basic group, and has a maximum molar absorption coefficient of 3000 L mol in the wavelength range of 400 to 700 nm. -1 ·cm -1 The present invention is characterized in that:

[0015] <Coloring composition> The coloring composition of the present invention comprises A coloring composition for a solid-state imaging device, comprising a pigment, a compound having a triazine ring, a polymerizable compound, and a photopolymerization initiator, The coloring composition contains a pigment in an amount of 50% by mass or more based on the total solid content of the coloring composition, The compound having a triazine ring contains at least one group selected from an acid group and a basic group, and has a maximum molar absorption coefficient of 3000 L mol in the wavelength range of 400 to 700 nm. -1 ·cm -1 The following compounds are characterized in that they have a triazine ring, contain at least one group selected from an acid group and a basic group, and have a maximum molar absorption coefficient of 3000 L mol -1 ·cm -1 The following compounds are also called triazine compounds (TA).

[0016] Since the coloring composition of the present invention contains the triazine compound (TA), the dispersibility of the pigment in the coloring composition can be improved, and the coloring composition can have excellent storage stability. In addition, the coloring composition of the present invention can form a film having excellent adhesion to the support. It is speculated that the reason why a film having excellent adhesion to the support can be formed is as follows. That is, since the triazine compound (TA) has a small molar absorption coefficient at a wavelength of 400 to 700 nm, when the coloring composition is applied on a support and exposed to light to form a film, it is speculated that light can be transmitted to the deep part of the film (the support side of the film) by exposure. As a result, it is speculated that the photopolymerization initiator can be decomposed even in the deep part of the film to sufficiently generate active species such as radicals, and the film can be sufficiently cured to the deep part. It is also speculated that a strong network is formed between the pigment and the triazine compound (TA) in the film, and it is speculated that the film becomes stronger due to the formation of such a network. Furthermore, it is speculated that an interaction occurs between the triazine ring of the triazine compound (TA) and the support, and the adhesion of the obtained film to the support is improved. It is presumed that due to the synergistic effect of these factors, a film having excellent adhesion to the support can be formed.

[0017] According to the colored composition of the present invention, it is possible to form a film having excellent heat resistance and small spectral fluctuation due to heating. It is presumed that the reason for such an effect is that the film is sufficiently cured by the same mechanism as described above.

[0018] The colored composition of the present invention can be used for a color filter, a near-infrared transmitting filter, a near-infrared cutting filter, and the like.

[0019] The color filter may be a filter having color pixels that transmit light of a specific wavelength, and is preferably a filter having at least one color pixel selected from red pixels, blue pixels, green pixels, yellow pixels, cyan pixels, and magenta pixels. The color filter may be formed using a coloring composition containing a chromatic pigment.

[0020] The near infrared cut filter may have a maximum absorption wavelength in the wavelength range of 700 to 1800 nm. The near infrared cut filter is preferably a filter having a maximum absorption wavelength in the wavelength range of 700 to 1300 nm, and more preferably a filter having a maximum absorption wavelength in the wavelength range of 700 to 1000 nm. The transmittance of the near infrared cut filter in the entire wavelength range of 400 to 650 nm is preferably 70% or more, more preferably 80% or more, and even more preferably 90% or more. The transmittance at at least one point in the wavelength range of 700 to 1800 nm is preferably 20% or less. The absorbance Amax / absorbance A550, which is the ratio of the absorbance Amax at the maximum absorption wavelength of the near infrared cut filter to the absorbance A550 at a wavelength of 550 nm, is preferably 20 to 500, more preferably 50 to 500, even more preferably 70 to 450, and particularly preferably 100 to 400. The near-infrared cut filter can be formed using a coloring composition containing a near-infrared absorbing pigment.

[0021] The near-infrared transmission filter is a filter that transmits at least a part of the near-infrared light. The near-infrared transmission filter may be a filter (transparent film) that transmits both visible light and near-infrared light, or may be a filter that blocks at least a part of visible light and transmits at least a part of the near-infrared light. Preferred examples of the near-infrared transmission filter include filters that satisfy the spectral characteristics of a maximum transmittance of 20% or less (preferably 15% or less, more preferably 10% or less) in the wavelength range of 400 to 640 nm and a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 1100 to 1300 nm. The near-infrared transmission filter is preferably a filter that satisfies any one of the following spectral characteristics (1) to (4). (1): A filter having a maximum transmittance of 20% or less (preferably 15% or less, more preferably 10% or less) in the wavelength range of 400 to 640 nm, and a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 800 to 1300 nm. (2): A filter having a maximum transmittance of 20% or less (preferably 15% or less, more preferably 10% or less) in the wavelength range of 400 to 750 nm, and a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 900 to 1300 nm. (3): A filter having a maximum transmittance of 20% or less (preferably 15% or less, more preferably 10% or less) in the wavelength range of 400 to 830 nm, and a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 1000 to 1300 nm. (4): A filter having a maximum transmittance of 20% or less (preferably 15% or less, more preferably 10% or less) in the wavelength range of 400 to 950 nm, and a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 1100 to 1300 nm.

[0022] The coloring composition of the present invention can be preferably used as a coloring composition for a color filter. Specifically, it can be preferably used as a coloring composition for forming pixels of a color filter, and more preferably used as a coloring composition for forming green pixels of a color filter. In addition, the coloring composition of the present invention can also be suitably used for a solid-state imaging element having the pixel configuration described in International Publication No. 2019 / 102887.

[0023] The solid content of the coloring composition of the present invention is preferably 5 to 40% by mass. The lower limit is preferably 10% by mass or more, and more preferably 12% by mass or more. The upper limit is preferably 35% by mass or less, and more preferably 30% by mass or less.

[0024] Hereinafter, each component used in the colored composition of the present invention will be described.

[0025] <<Pigments>> The coloring composition of the present invention contains a pigment. Examples of the pigment include a white pigment, a black pigment, a chromatic pigment, and a near-infrared absorbing pigment. In the present invention, the white pigment includes not only pure white but also light gray pigments close to white (e.g., grayish white, light gray, etc.). The pigment may be either an inorganic pigment or an organic pigment, and is preferably an organic pigment because it is easier to improve the dispersion stability. The pigment preferably has a maximum absorption wavelength in the wavelength range of 400 to 2000 nm, and more preferably has a maximum absorption wavelength in the wavelength range of 400 to 700 nm. In addition, when a pigment (preferably a chromatic pigment) having a maximum absorption wavelength in the wavelength range of 400 to 700 nm is used, the coloring composition of the present invention can be preferably used as a coloring composition for forming color pixels in a color filter. Examples of the color pixels include red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, and yellow pixels.

[0026] The pigment preferably contains at least one selected from phthalocyanine pigments, squarylium pigments, dioxazine pigments, quinacridone pigments, anthraquinone pigments, perylene pigments, azo pigments, diketopyrrolopyrrole pigments, isoindoline pigments, and quinophthalone pigments, more preferably contains at least one selected from phthalocyanine pigments, squarylium pigments, and diketopyrrolopyrrole pigments, and further preferably contains a phthalocyanine pigment because the effects of the present invention are more likely to be obtained. The proportion of the phthalocyanine pigment in the total amount of pigments contained in the coloring composition is preferably 50 to 100 mass%, more preferably 60 to 100 mass%, and further preferably 65 to 100 mass%.

[0027] In addition, the pigment preferably contains a green pigment. Generally, the film obtained by using a coloring composition containing a green pigment tends to have low adhesion to the support, but according to the coloring composition of the present invention, even if the coloring composition contains a green pigment, a film having excellent adhesion to the support can be formed, so the effect of the present invention is more remarkable. Examples of the green pigment include phthalocyanine pigments and squarylium pigments, and phthalocyanine pigments are preferable because of good storage stability.

[0028] The average primary particle diameter of the pigment is preferably 1 to 200 nm. The lower limit is preferably 5 nm or more, more preferably 10 nm or more. The upper limit is preferably 180 nm or less, more preferably 150 nm or less, and even more preferably 100 nm or less. If the average primary particle diameter of the pigment is within the above range, the dispersion stability of the pigment in the coloring composition is good. In the present invention, the primary particle diameter of the pigment can be obtained from a photograph obtained by observing the primary particles of the pigment with a transmission electron microscope. Specifically, the projected area of ​​the primary particles of the pigment is obtained, and the corresponding circle equivalent diameter is calculated as the primary particle diameter of the pigment. In addition, the average primary particle diameter in the present invention is the arithmetic average value of the primary particle diameters of 400 primary particles of the pigment. In addition, the primary particles of the pigment refer to independent particles without aggregation.

[0029] (chromatic pigments) The chromatic pigment is not particularly limited, and known chromatic pigments can be used. Examples of chromatic pigments include pigments having a maximum absorption wavelength in the wavelength range of 400 to 700 nm. Examples include yellow pigments, orange pigments, red pigments, green pigments, purple pigments, and blue pigments. Specific examples of these include the following.

[0030] Color Index (CI) Pigment Yellow 1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 42, 43, 53, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 83, 86, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 123, 125, 126 ,127,128,129,137,138,139,147,148,150,151,152,153,154,155,156,161,162,164,166,167,168,169,170,171,172,173,174,175,176,177,179,180,181,182,185,187,188,193,194,199,213,214,215,228,231,232 (methine type), 233 (quinoline type), etc. (above, yellow pigments), 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. (orange pigments) 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 ,53:1,57:1,60:1,63:1,66,67,81:1,81:2,81:3,83,88,90,105,112,119,122,123,144,146,149, 150,155,166,168,169,170,171,172,175,176,177,178,179,184,185,187,188,190,200,202,206,207,208,209,210,216,220,224,226,242,246,254,255,264,270,272,279,294 (Xanthene, Organo Ultramarine, Bluish Red), 295 (Monoazo), 296 (Diazo), etc. (above, red pigments), CI Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, etc. (green pigments), CI Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60 (triarylmethane type), 61 (xanthene type), etc. (purple pigments) 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 type), 88 (methine type), etc. (all blue pigments).

[0031] In addition, as the green pigment, a halogenated zinc phthalocyanine 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. Specific examples include compounds described in International Publication No. 2015 / 118720. In addition, as a green colorant, a compound described in Chinese Patent Application No. 106909027, a phthalocyanine compound having a phosphoric acid ester as a ligand described in International Publication No. 2012 / 102395, a phthalocyanine compound described in JP-A-2019-008014, a phthalocyanine compound described in JP-A-2018-180023, a compound described in JP-A-2019-038958, and the like can also be used.

[0032] In addition, an aluminum phthalocyanine compound having a phosphorus atom can also be used as a blue pigment. Specific examples include the compounds described in paragraphs 0022 to 0030 of JP-A No. 2012-247591 and paragraph 0047 of JP-A No. 2011-157478.

[0033] Further, as yellow pigments, compounds described in JP-A-2017-201003, compounds described in JP-A-2017-197719, compounds described in paragraphs 0011 to 0062 and 0137 to 0276 of JP-A-2017-171912, compounds described in paragraphs 0010 to 0062 and 0138 to 0295 of JP-A-2017-171913, compounds described in paragraphs 0011 to 0062 and 0139 to 0190 of JP-A-2017-171914, compounds described in paragraphs 0010 to 0065 and 0142 to 0222 of JP-A-2017-171915, , quinophthalone compounds described in paragraphs 0011 to 0034 of JP 2013-054339 A, quinophthalone compounds described in paragraphs 0013 to 0058 of JP 2014-026228 A, isoindoline compounds described in JP 2018-062644 A, quinophthalone compounds described in JP 2018-203798 A, quinophthalone compounds described in JP 2018-062578 A, quinophthalone compounds described in Japanese Patent No. 6432077, quinophthalone compounds described in Japanese Patent No. 6432076, JP 2018-155881 A Quinophthalone compounds described in JP 2018-111757 A, quinophthalone compounds described in JP 2018-040835 A, quinophthalone compounds described in JP 2017-197640 A, quinophthalone compounds described in JP 2016-145282 A, quinophthalone compounds described in JP 2014-085565 A, quinophthalone compounds described in JP 2014-021139 A, quinophthalone compounds described in JP 2013-209614 A, quinophthalone compounds described in JP 2013-209435 A quinophthalone compounds, quinophthalone compounds described in JP-A-2013-181015, quinophthalone compounds described in JP-A-2013-061622, quinophthalone compounds described in JP-A-2013-054339, 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,The quinophthalone compound described in JP 2008-074985 A, the quinophthalone compound described in JP 2008-050420 A, the quinophthalone compound described in JP 2008-031281 A, the quinophthalone compound described in JP 48-032765 B, the quinophthalone compound described in JP 2019-008014 A, the compound represented by the following formula (QP1), and the compound represented by the following formula (QP2) can also be used. [ka]

[0034] In formula (QP1), X 1 ~X 16 each independently represents a hydrogen atom or a halogen atom; Z 1 represents an alkylene group having 1 to 3 carbon atoms. Specific examples of the compound represented by formula (QP1) include the compounds described in paragraph 0016 of Japanese Patent No. 6443711. [ka]

[0035] 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 the compounds described in paragraphs 0047 to 0048 of Japanese Patent No. 6432077.

[0036] As the red pigment, a diketopyrrolopyrrole pigment having at least one bromine atom substituted in the structure described in JP-A-2017-201384, a diketopyrrolopyrrole pigment described in paragraphs 0016-0022 of Japanese Patent No. 6248838, a red pigment described in Japanese Patent No. 6516119, a red pigment described in Japanese Patent No. 6525101, etc. can also be used. In addition, as the red pigment, a compound having a structure in which an aromatic ring group having an oxygen atom, a sulfur atom, or a nitrogen atom bonded to an aromatic ring is bonded to a diketopyrrolopyrrole skeleton can also be used. As such a compound, a compound represented by formula (DPP1) is preferable, and a compound represented by formula (DPP2) is more preferable. [ka]

[0037] In the above formula, R 11 and R 13 each independently represents a substituent, R 12 and R 14 each independently represents a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group; n11 and n13 each independently represent an integer of 0 to 4; X 12 and X 14 each independently represents an oxygen atom, a sulfur atom, or a nitrogen atom; X 12 When is an oxygen atom or a sulfur atom, m12 represents 1, and X 12 When is a nitrogen atom, m12 represents 2, and X 14 When is an oxygen atom or a sulfur atom, m14 represents 1, and X 14 When is a nitrogen atom, m14 is 2. 11 and R 13 Examples of the substituent represented by include the groups exemplified as the substituent T described below. Preferred specific examples thereof include an alkyl group, an aryl group, a halogen atom, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a heteroaryloxycarbonyl group, an amido group, a cyano group, a nitro group, a trifluoromethyl group, a sulfoxide group, and a sulfo group.

[0038] In the present invention, the chromatic pigments may be used in combination of two or more kinds. For example, a green color may be formed by a combination of CI Pigment Green 7, CI Pigment Green 36, CI Pigment Yellow 139, and CI Pigment Yellow 185, or a green color may be formed by a combination of CI Pigment Green 58, CI Pigment Yellow 150, and CI Pigment Yellow 185.

[0039] In addition, when two or more chromatic pigments are used in combination, the two or more chromatic pigments may be combined to form a black color. Examples of such combinations include the following embodiments (1) to (7). When the coloring composition contains two or more chromatic pigments and exhibits a black color by combining two or more chromatic pigments, the coloring composition of the present invention can be preferably used as a near-infrared transmission filter. (1) An embodiment containing a red pigment and a blue pigment. (2) An embodiment containing a red pigment, a blue pigment, and a yellow pigment. (3) An embodiment containing a red pigment, a blue pigment, a yellow pigment, and a purple pigment. (4) An embodiment containing a red pigment, a blue pigment, a yellow pigment, a purple pigment, and a green pigment. (5) An embodiment containing a red pigment, a blue pigment, a yellow pigment, and a green pigment. (6) An embodiment containing a red pigment, a blue pigment, and a green pigment. (7) An embodiment containing a yellow pigment and a purple pigment.

[0040] (White pigment) Examples of the white pigment include titanium oxide, strontium titanate, barium titanate, zinc oxide, magnesium oxide, zirconium oxide, aluminum oxide, barium sulfate, silica, talc, mica, aluminum hydroxide, calcium silicate, aluminum silicate, hollow resin particles, and zinc sulfide. The white pigment is preferably a particle having a titanium atom, and more preferably titanium oxide. The white pigment is preferably a particle having a refractive index of 2.10 or more for light with a wavelength of 589 nm. The refractive index is preferably 2.10 to 3.00, and more preferably 2.50 to 2.75.

[0041] In addition, the titanium oxide described in "Titanium Oxide: Physical Properties and Application Technology, by Manabu Seino, pages 13-45, published June 25, 1991, by Gihodo Publishing Co., Ltd." can also be used as the white pigment.

[0042] The white pigment may be not only a single inorganic substance, but also a particle composited with other materials. For example, it is preferable to use a particle having a void or other material inside, a particle having a large number of inorganic particles attached to a core particle, or a core-shell composite particle composed of a core particle composed of a polymer particle and a shell layer composed of inorganic nanoparticles. For the core-shell composite particle composed of a core particle composed of a polymer particle and a shell layer composed of inorganic nanoparticles, the description in paragraphs 0012 to 0042 of JP 2015-047520 A can be referred to, and the contents of this specification are incorporated herein.

[0043] The white pigment can also be hollow inorganic particles. The hollow inorganic particles are inorganic particles with a structure having a cavity inside, and refer to inorganic particles with a cavity surrounded by an outer shell. Examples of the hollow inorganic particles include the hollow inorganic particles described in JP2011-075786A, WO2013 / 061621A, JP2015-164881A, etc., the contents of which are incorporated herein by reference.

[0044] (Black pigment) The black pigment is not particularly limited, and known pigments can be used. Examples include carbon black, titanium black, graphite, etc., with carbon black and titanium black being preferred, and titanium black being more preferred. Titanium black is a black particle containing titanium atoms, and low-order titanium oxide or titanium oxynitride is preferred. Titanium black can be surface-modified as necessary for the purpose of improving dispersibility, suppressing aggregation, etc. For example, the surface of titanium black can be coated with silicon oxide, titanium oxide, germanium oxide, aluminum oxide, magnesium oxide, or zirconium oxide. In addition, treatment with a water-repellent substance such as that shown in JP-A-2007-302836 can also be performed. Examples of black pigments include Color Index (CI) Pigment Black 1,7, etc. It is preferable that both the primary particle size and the average primary particle size of the individual particles of titanium black are small. Specifically, the average primary particle size is preferably 10 to 45 nm. Titanium black can also be used as a dispersion. For example, a dispersion containing titanium black particles and silica particles, and the ratio of Si atoms to Ti atoms in the dispersion is adjusted to a range of 0.20 to 0.50, can be mentioned. For the above dispersion, the description in paragraphs 0020 to 0105 of JP 2012-169556 A can be referred to, and the contents thereof are incorporated herein. Examples of commercially available titanium black products include titanium black 10S, 12S, 13R, 13M, 13M-C, 13R-N, and 13M-T (trade names: manufactured by Mitsubishi Materials Corporation), Tilack D (trade name: manufactured by Ako Kasei Co., Ltd.), and the like.

[0045] (Near infrared absorbing pigment) The near infrared absorbing pigment is preferably an organic pigment. The near infrared absorbing pigment preferably has a maximum absorption wavelength in the range of more than 700 nm to 1400 nm. The maximum absorption wavelength of the near infrared absorbing pigment is preferably 1200 nm or less, more preferably 1000 nm or less, and even more preferably 950 nm or less. The near infrared absorbing pigment has an absorbance A at a wavelength of 550 nm. 550 and absorbance A at the maximum absorption wavelengthmax A is the ratio of 550 / A max is preferably 0.1 or less, more preferably 0.05 or less, even more preferably 0.03 or less, and particularly preferably 0.02 or less. The lower limit is not particularly limited, but can be, for example, 0.0001 or more, or can be 0.0005 or more. If the above-mentioned absorbance ratio is within the above range, the near-infrared absorbing pigment can be excellent in visible transparency and near-infrared shielding properties. In the present invention, the maximum absorption wavelength and the absorbance value at each wavelength of the near-infrared absorbing pigment are values ​​obtained from the absorption spectrum of a film formed using a coloring composition containing the near-infrared absorbing pigment.

[0046] The near-infrared absorbing pigment is not particularly limited, but examples thereof include a pyrrolopyrrole compound, a rylene compound, an oxonol compound, a squarylium compound, a cyanine compound, a croconium compound, a phthalocyanine compound, a naphthalocyanine compound, a pyrylium compound, an azulenium compound, an indigo compound, and a pyrromethene compound. At least one selected from a pyrrolopyrrole compound, a squarylium compound, a cyanine compound, a phthalocyanine compound, and a naphthalocyanine compound is preferable, a pyrrolopyrrole compound or a squarylium compound is more preferable, and a pyrrolopyrrole compound is particularly preferable.

[0047] The content of the pigment in the total solid content of the coloring composition is 50% by mass or more, preferably 53% by mass or more, more preferably 55% by mass or more, and even more preferably 60% by mass or more. The upper limit is preferably 80% by mass or less, more preferably 75% by mass or less, and even more preferably 70% by mass or less.

[0048] The content of the green pigment in the total solid content of the coloring composition is preferably 30% by mass or more, more preferably 40% by mass or more, and even more preferably 45% by mass or more.The upper limit is preferably 70% by mass or less, more preferably 65% ​​by mass or less, and even more preferably 60% by mass or less.

[0049] The content of the phthalocyanine pigment in the total solid content of the coloring composition is preferably 30% by mass or more, more preferably 30% by mass or more, and even more preferably 45% by mass or more.The upper limit is preferably 70% by mass or less, more preferably 65% ​​by mass or less, and even more preferably 60% by mass or less.

[0050] <<dye>> The coloring composition of the present invention may contain a dye. The dye is not particularly limited, and a known dye may be used. The dye may be a chromatic dye or a near-infrared absorbing dye. Examples of the chromatic dye include pyrazole azo compounds, anilino azo compounds, triarylmethane compounds, anthraquinone compounds, anthrapyridone compounds, benzylidene compounds, oxonol compounds, pyrazolotriazole azo compounds, pyridone azo compounds, cyanine compounds, phenothiazine compounds, pyrrolopyrazole azomethine compounds, xanthene compounds, phthalocyanine compounds, benzopyran compounds, indigo compounds, and pyrromethene compounds. In addition, thiazole compounds described in JP-A-2012-158649, azo compounds described in JP-A-2011-184493, and azo compounds described in JP-A-2011-145540 may also be used. Examples of near infrared absorbing dyes include pyrrolopyrrole compounds, rylene compounds, oxonol compounds, squarylium compounds, cyanine compounds, croconium compounds, phthalocyanine compounds, naphthalocyanine compounds, pyrylium compounds, azulenium compounds, indigo compounds, and pyrromethene compounds.

[0051] As the dye, a dye multimer can also be used. The dye multimer has two or more dye structures in one molecule, and preferably has three or more dye structures. The upper limit is not particularly limited, but can be 100 or less. The multiple dye structures in one molecule may be the same dye structure or different dye structures. The weight average molecular weight (Mw) of the dye multimer is preferably 2000 to 50000. The lower limit is more preferably 3000 or more, and even more preferably 6000 or more. The upper limit is more preferably 30000 or less, and even more preferably 20000 or less. As the dye multimer, compounds described in JP2011-213925A, JP2013-041097A, JP2015-028144A, JP2015-030742A, JP2016-102191A, WO2016 / 031442, and the like can also be used.

[0052] The content of the dye in the total solid content of the coloring composition is preferably 1% by mass or more, more preferably 5% by mass or more, and particularly preferably 10% by mass or more. There is no particular upper limit, but it is preferably 70% by mass or less, more preferably 65% ​​by mass or less, and even more preferably 60% by mass or less. The content of the dye is preferably 5 to 50 parts by mass relative to 100 parts by mass of the pigment. The upper limit is preferably 45 parts by mass or less, and more preferably 40 parts by mass or less. The lower limit is preferably 10 parts by mass or more, and more preferably 15 parts by mass or more. In addition, the coloring composition of the present invention may be substantially free of dyes. When the coloring composition of the present invention is substantially free of dyes, the content of the dye in the total solid content of the coloring composition of the present invention is preferably 0.1% by mass or less, more preferably 0.05% by mass or less, and particularly preferably free of dyes.

[0053] <<Triazine compounds (TA)>> The coloring composition of the present invention is a compound having a triazine ring, which contains at least one group selected from an acid group and a basic group, and has a maximum molar absorption coefficient of 3000 L mol -1 ·cm -1 The following compounds (triazine compounds (TA)) are included:

[0054] The triazine compound (TA) preferably contains 2 or more triazine rings in one molecule, more preferably 2 to 4 triazine rings, and even more preferably 2 to 3 triazine rings in one molecule. It is presumed that the inclusion of 2 or more triazine rings in one molecule facilitates the formation of a stronger network between the pigment and the triazine compound (TA) in the film, and facilitates the formation of a film with excellent adhesion to the support.

[0055] The acid group of the triazine compound (TA) is preferably at least one selected from a carboxyl group, a sulfo group, a phosphoric acid group, and salts thereof, and more preferably at least one selected from a carboxyl group, a sulfo group, and salts thereof. The atom or atomic group constituting the salt is preferably an alkali metal ion (Li + , Na + , K + etc.), alkaline earth metal ions (Ca 2+ , Mg 2+ etc.), ammonium ion, imidazolium ion, pyridinium ion, phosphonium ion, etc.

[0056] The basic group of the triazine compound (TA) is preferably at least one selected from an amino group, a pyridyl group and their salts, an ammonium group salt, and a phthalimidomethyl group, more preferably at least one selected from an amino group, an amino group salt, and an ammonium group salt, and more preferably an amino group or an amino group salt. Examples of the amino group include -NH2, a dialkylamino group, an alkylarylamino group, a diarylamino group, and a cyclic amino group. The dialkylamino group, the alkylarylamino group, the diarylamino group, and the cyclic amino group may further have a substituent. Examples of the substituent include the substituent T described later. Examples of the atom or atomic group constituting the salt include a hydroxide ion, a halogen ion, a carboxylate ion, a sulfonate ion, and a phenoxide ion.

[0057] The triazine compound (TA) is preferably a compound containing a basic group, since this makes it easier to suppress color unevenness.

[0058] The molecular weight of the triazine compound (TA) is preferably from 400 to 1500, more preferably from 450 to 1250, and further preferably from 500 to 1000. When the molecular weight of the triazine compound (TA) is within the above range, the storage stability of the colored composition can be further improved.

[0059] From the viewpoint of the stability of the triazine compound, the ethylenically unsaturated bond-containing group (hereinafter referred to as C=C value) of the triazine compound (TA) is preferably 0.0050 mmol / g or less, more preferably 0.0035 mmol / g or less, even more preferably 0.0030 mmol / g or less, even more preferably 0.0025 mmol / g or less, and particularly preferably 0 mmol / g. The C=C value of the triazine compound (TA) is a value calculated by dividing the number of ethylenically unsaturated bond-containing groups contained in one molecule of the triazine compound (TA) by the molecular weight of the triazine compound (TA).

[0060] The triazine compound (TA) is preferably a compound containing a group represented by the following formula (C1): When the triazine compound (TA) is a compound containing such a group, the effects of the present invention are more likely to be obtained. [ka]

[0061] In the formula, the wavy line represents a linker, and Lc 1 and Lc 2 Rc each independently represents a single bond or a linking group; 1 and Rc 2 Each independently represents a substituent; Rc 1 and Rc 2 At least one of represents an acid group or a basic group.

[0062] In formula (C1), Lc 1 and Lc 2 Each of the groups independently represents a single bond or a linking group, and is preferably a divalent linking group. Examples of the divalent linking group include an alkylene group, an arylene group, -O-, -N(R L1 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SONH-, -SO- and combinations thereof. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 15, further preferably 1 to 8, and particularly preferably 1 to 5. The alkylene group may be linear, branched, or cyclic, preferably linear or branched, and particularly preferably linear. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 15. The arylene group is preferably a phenylene group. R L1 R represents a hydrogen atom, an alkyl group, or an aryl group, preferably a hydrogen atom or an alkyl group, and more preferably a hydrogen atom. L1 The number of carbon atoms in the alkyl group represented by R is preferably 1 to 20, more preferably 1 to 15, and further preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably linear. L1The alkyl group represented by may further have a substituent. Examples of the substituent include the substituent T described below. L1 The number of carbon atoms in the aryl group represented by R is preferably 6 to 30, more preferably 6 to 20, and further preferably 6 to 12. L1 The aryl group represented by may further have a substituent. Examples of the substituent include the substituent T described below.

[0063] In formula (C1), Rc 1 and Rc 2 Each independently represents a substituent. Examples of the substituent include an alkyl group, an aryl group, a heterocyclic group, a hydroxyl group, an acid group, and a basic group. 1 and Rc 2 At least one of Rc represents an acid group or a basic group. 1 and Rc 2 At least one of Rc is preferably a basic group. 1 and Rc 2 and more preferably both are basic groups. Examples of the acid group and basic group include those mentioned above. The number of carbon atoms in the alkyl group is preferably 1 to 30, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, and is preferably linear or branched, and more preferably linear. The number of carbon atoms in the aryl group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 12. The heterocyclic group may be a monocyclic ring or a condensed ring. The heterocyclic group is preferably a monocyclic ring or a condensed ring having 2 to 4 condensations. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1 to 3. The heteroatoms constituting the ring of the heterocyclic group are preferably nitrogen atoms, oxygen atoms, or sulfur atoms. The number of carbon atoms constituting the ring of the heterocyclic group is preferably 3 to 30, more preferably 3 to 18, and more preferably 3 to 12. The alkyl group, aryl group, and heterocyclic group may further have a substituent. Examples of the substituent include the substituent T shown below.

[0064] (substituent T) The substituent T is a halogen atom, a cyano group, a nitro group, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, -ORt1 , -CORt 1 , -COORt 1 , -OCORt 1 , -NRt 1 Rt 2 , -NHCORt 1 , -CONRt 1 Rt 2 , -NHCONRt 1 Rt 2 , -NHCOORt 1 , -SRt 1 , -SO2Rt 1 , -SO2ORt 1 , -NHSO2Rt 1 or -SO2NRt 1 Rt 2 Examples include: Rt 1 and Rt 2 Rt each independently represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heteroaryl group. 1 and Rt 2 may be bonded to form a ring. 1 Rt 1 When -SO2ORt is hydrogen, the hydrogen atom may be dissociated or may be in the form of a salt. 1 Rt 1 When is a hydrogen atom, the hydrogen atom may be dissociated or may be in the form of a salt.

[0065] Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom. The number of carbon atoms in the alkyl group is preferably 1 to 30, more preferably 1 to 15, and further preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably linear. The number of carbon atoms in the alkenyl group is preferably 2 to 30, more preferably 2 to 12, and particularly preferably 2 to 8. The alkenyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably linear. The number of carbon atoms in the alkynyl group is preferably 2 to 30, more preferably 2 to 25. The alkynyl group may be linear, branched or cyclic, preferably linear or branched, more preferably linear. The aryl group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and further preferably 6 to 12 carbon atoms. The heterocyclic group may be a monocyclic ring or a condensed ring. The heterocyclic group is preferably a monocyclic ring or a condensed ring having 2 to 4 condensed rings. The number of heteroatoms constituting the ring of the heterocyclic group is preferably 1 to 3. The heteroatoms constituting the ring of the heterocyclic group are preferably nitrogen atoms, oxygen atoms, or sulfur atoms. The number of carbon atoms constituting the ring of the heterocyclic group is preferably 3 to 30, more preferably 3 to 18, and more preferably 3 to 12. The alkyl group, the alkenyl group, the alkynyl group, the aryl group and the heterocyclic group may have a substituent or may be unsubstituted. Examples of the substituent include the substituents explained above for the substituent T.

[0066] The group represented by the above formula (C1) is preferably a group represented by the following formula (C2), and more preferably a group represented by the following formula (C3). [ka]

[0067] In formula (C2), the wavy lines represent the linkages, and Lc 11 and Lc 12 Rc each independently represents a single bond or a linking group; 11 and Rc 12 Rc each independently represents a hydrogen atom or a substituent. 13 and Rc 14 Each independently represents a substituent; Rc 13 and Rc 14 At least one of represents an acid group or a basic group.

[0068] Rc in formula (C2) 13 and Rc 14 is Rc in formula (C1). 1 and Rc 2The same definition and preferred range are also the same.

[0069] In formula (C2), Rc 11 and Rc 12 Rc each independently represents a hydrogen atom or a substituent. 11 and Rc 12 Examples of the substituent represented by include an alkyl group and an aryl group. The number of carbon atoms in the alkyl group is preferably 1 to 20, more preferably 1 to 15, and even more preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably linear. The number of carbon atoms in the aryl group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 12. The alkyl group and the aryl group may further have a substituent. Examples of the substituent include the substituent T described above.

[0070] In formula (C2), Rc 11 and Rc 12 is preferably a hydrogen atom.

[0071] In formula (C2), Lc 11 and Lc 12 Each of the groups independently represents a single bond or a linking group, and is preferably a divalent linking group. Examples of the divalent linking group include an alkylene group, an arylene group, -O-, -N(R L11 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SONH-, -SO- and combinations thereof are included, and it is preferably a group containing at least one selected from an alkylene group and an arylene group, more preferably a group containing an alkylene group, and even more preferably an alkylene group. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 15, still more preferably 1 to 8, and particularly preferably 1 to 5. The alkylene group may be linear, branched, or cyclic, preferably linear or branched, and particularly preferably linear. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 15. The arylene group is preferably a phenylene group. R L1R represents a hydrogen atom, an alkyl group, or an aryl group, preferably a hydrogen atom or an alkyl group, and more preferably a hydrogen atom. L11 The alkyl group and aryl group represented by R L1 The alkyl group and aryl group represented by the formula (I) are the same as those represented by the formula (I).

[0072] [ka]

[0073] In formula (C3), the wavy line represents a link, and Lc 21 and Lc 22 Rc each independently represents a single bond or a linking group; 21 and Rc 22 Rc each independently represents a hydrogen atom or a substituent. 23 ~Rc 26 Rc each independently represents a hydrogen atom or a substituent. 23 and Rc 24 may be bonded via a divalent group to form a ring, Rc 25 and Rc 26 may be bonded via a divalent group to form a ring.

[0074] Rc in formula (C3) 21 and Rc 22 is Rc in formula (C2) 11 and Rc 12 The Lc in formula (C3) has the same meaning as above, and the preferred range is also the same. 21 and Lc 22 is Lc in formula (C2). 11 and Lc 12 The same definition and preferred range are also the same.

[0075] In formula (C3), Rc 23 ~Rc 26each independently represents a hydrogen atom or a substituent, and is preferably a substituent. Examples of the substituent include an alkyl group and an aryl group, and are preferably an alkyl group. The number of carbon atoms in the alkyl group is preferably 1 to 10, more preferably 1 to 5, and even more preferably 1 to 3. The alkyl group may be linear, branched, or cyclic, and is preferably linear or branched, and more preferably linear. The number of carbon atoms in the aryl group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 12. The alkyl group and the aryl group may further have a substituent. Examples of the substituent include the substituent T described above.

[0076] In formula (C3), Rc 23 and Rc 24 may be bonded via a divalent group to form a ring, Rc 25 and Rc 26 may be bonded to each other via a divalent group to form a ring. Examples of the divalent group include -CH2-, -O-, and -SO2-. Specific examples of the ring formed by the above groups bonded to each other via a divalent group include the following. [ka]

[0077] Specific examples of the group represented by formula (C1) include groups having the following structures. [ka]

[0078] The triazine compound (TA) is preferably a compound represented by the following formula (1). A 1 -B 1 -C 1 (1) In formula (1), A 1 represents a group containing an aromatic ring, B 1 represents a single bond or a divalent linking group, C 1 represents a group represented by the above formula (C1).

[0079] C in formula (1) 1 represents a group represented by the above formula (C1), preferably a group represented by the above formula (C2), and more preferably a group represented by the above formula (C3).

[0080] In formula (1), A 1 represents a group containing an aromatic ring. The aromatic ring may be an aromatic hydrocarbon ring or an aromatic heterocycle. The aromatic ring may be a monocycle or a condensed ring. A 1 The group represented by the formula (I) includes a group containing an aromatic ring selected from a benzene ring, a naphthalene ring, a fluorene ring, a perylene ring, an imidazole ring, a pyrazole ring, an oxazole ring, a thiazole ring, an imidazoline ring, a pyridine ring, a triazole ring, an imidazoline ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, a quinoline ring, an isoquinoline ring, a quinoxaline ring, a quinazoline ring, a benzimidazole ring, a benzopyrazole ring, a benzoxazole ring, a benzothiazole ring, a benzotriazole ring, an indole ring, an isoindole ring, a triazine ring, a pyrrole ring, a carbazole ring, a benzimidazolinone ring, a phthalimide ring, a phthalocyanine ring, an anthraquinone ring, a diketopyrrolopyrrole ring, an isoindolinone ring, an isoindoline ring and a quinacridone ring; a group containing a condensed ring containing these aromatic rings, and the like. The condensed ring may be an aromatic ring or a non-aromatic ring, but is preferably an aromatic ring.

[0081] Also, A 1 The group represented by may be a group having only one of the above aromatic rings or fused rings, but it is preferable for the group to have two or more of these rings, because the more aromatic rings there are, the better the pigment adsorption due to ππ interactions, and the easier it is to improve the storage stability of the composition.

[0082] A 1 The group represented by may further have a substituent. Examples of the substituent include the substituent T described above.

[0083] A 1The group represented by A is preferably a group having a structure that easily interacts with the pigment contained in the coloring composition or a structure similar to that of the pigment. According to this embodiment, the dispersibility of the pigment in the coloring composition can be improved, and the storage stability of the coloring composition can be further improved. 1 The group represented by is preferably a group containing an aromatic heterocycle, more preferably a group containing a nitrogen-containing aromatic heterocycle, further preferably a group containing a triazine ring, and particularly preferably a group represented by the following formula (A1), because the effects of the present invention can be more significantly achieved. [ka] In the formula, the wavy line represents a bond, and La 1 and La 2 each independently represents a single bond or a divalent linking group; 1 and Ra 2 each independently represents a hydrogen atom or a substituent.

[0084] In formula (A1), La 1 and La 2 Each of the groups independently represents a single bond or a linking group, and is preferably a divalent linking group. Examples of the divalent linking group include an alkylene group, an arylene group, -O-, -N(R La1 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SONH-, -SO- and combinations thereof. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 15, further preferably 1 to 8, and particularly preferably 1 to 5. The alkylene group may be linear, branched, or cyclic, preferably linear or branched, and particularly preferably linear. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 15. The arylene group is preferably a phenylene group. R La1 R represents a hydrogen atom, an alkyl group, or an aryl group, preferably a hydrogen atom or an alkyl group, and more preferably a hydrogen atom. La1The number of carbon atoms in the alkyl group represented by R is preferably 1 to 20, more preferably 1 to 15, and further preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably linear. La1 The alkyl group represented by may further have a substituent. Examples of the substituent include the above-mentioned substituent T. La1 The number of carbon atoms in the aryl group represented by R is preferably 6 to 30, more preferably 6 to 20, and further preferably 6 to 12. La1 The aryl group represented by may further have a substituent. Examples of the substituent include the substituent T described above.

[0085] La 1 and La 2 The divalent linking group represented by is -N(R La1 )- or -O-, and -N(R La1 )- is more preferred.

[0086] In formula (A1), Ra 1 and Ra 2 Each of Ra independently represents a hydrogen atom or a substituent. Examples of the substituent include the above-mentioned substituent T, and are preferably an alkyl group, an aryl group, and a heterocyclic group, more preferably an aryl group and a heterocyclic group, and even more preferably an aryl group because it is easy to increase the pigment adsorption and improve the storage stability of the composition. 1 and Ra 2 The alkyl group, aryl group and heterocyclic group represented by may further have a substituent. Examples of the further substituent include the substituent T described above. In addition, Ra is used because it is easier to suppress color unevenness. 1 and Ra 2 At least one of the groups is preferably a group containing a structure selected from a urea structure, an imide structure, and an amide structure, more preferably a group containing a urea structure, and further preferably a heterocyclic group containing a urea structure. Examples of the heterocyclic group containing a urea structure include a benzimidazolone group.

[0087] A 1Specific examples of the group include groups of the following structures: In the following structural formulas, Me represents a methyl group. [ka] [ka] [ka]

[0088] In formula (1), B 1 represents a single bond or a divalent linking group, and a divalent linking group is preferable. 1 The divalent linking group represented by is an alkylene group, an arylene group, -O-, -N(R LB1 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SONH-, -SO- and combinations thereof. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 15, further preferably 1 to 8, and particularly preferably 1 to 5. The alkylene group may be linear, branched, or cyclic, preferably linear or branched, and particularly preferably linear. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 15. The arylene group is preferably a phenylene group. R LB1 R represents a hydrogen atom, an alkyl group, or an aryl group, preferably a hydrogen atom or an alkyl group, and more preferably a hydrogen atom. LB1 The number of carbon atoms in the alkyl group represented by R is preferably 1 to 20, more preferably 1 to 15, and further preferably 1 to 8. The alkyl group may be linear, branched, or cyclic, preferably linear or branched, and more preferably linear. LB1 The alkyl group represented by may further have a substituent. Examples of the substituent include the above-mentioned substituent T. LB1 The number of carbon atoms in the aryl group represented by R is preferably 6 to 30, more preferably 6 to 20, and further preferably 6 to 12. L1 The aryl group represented by may further have a substituent. Examples of the substituent include the substituent T described above.

[0089] B 1 The divalent linking group represented by is preferably a group represented by the following formula (L1). -L 1A -L 1B -L 1C - (L1) In the formula, L 1A and L 1C are each independently -O-, -N(R LB1 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SO2NH-, or -SO2-; L 1B represents a single bond or a divalent linking group.

[0090] L 1B The divalent linking group represented by is an alkylene group, an arylene group, or an alkylene group and an arylene group connected by a single bond or -O-, -N(R LB1 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SONH-, -SO- and combinations thereof; groups connecting alkylene groups or arylene groups via -O-, -N(R LB1 )-, -NHCO-, -CONH-, -OCO-, -COO-, -CO-, -SO2NH-, -SO2- and groups bonded via a group consisting of a combination thereof.

[0091] B 1 Specific examples of the group include groups having the following structures. [ka]

[0092] Specific examples of the triazine compound (TA) include the following. 1 Structure of B 1 The structure of C 1 The symbols in the structure column are A 1 Specific example of B 1 Specific examples of C 1 This is the structure given as a specific example. [Table 1]

[0093] The maximum molar absorption coefficient of triazine compounds (TA) in the wavelength range of 400 to 700 nm is 1000 L mol -1 ·cm -1 It is preferable that the concentration is less than 100 L·mol -1 ·cm -1 It is more preferable that the molar absorption coefficient of the triazine compound (TA) is not more than 100%. According to this embodiment, it is easy to improve the adhesion of the obtained film to the support. In this specification, the molar absorption coefficient of the triazine compound (TA) is a value measured by the method described in the examples described later.

[0094] It is also preferable that the triazine compound (TA) satisfies any one of the following spectroscopic characteristics (a) to (d). (a) The maximum molar absorption coefficient in the wavelength range from 700 nm to 750 nm is 3000 L mol -1 ·cm -1 It is preferable that the concentration is less than 1000 L·mol -1 ·cm -1 It is more preferable that it is less than 100 L·mol -1 ·cm -1 It is even more preferable that: (b) The maximum molar absorption coefficient in the wavelength range of more than 750 nm and less than or equal to 800 nm is 3000 L mol -1 ·cm -1 It is preferable that the concentration is less than 1000 L·mol -1 ·cm -1 It is more preferable that it is less than 100 L·mol -1 ·cm -1 It is even more preferable that: (c) The maximum molar absorption coefficient in the wavelength range of more than 800 nm and less than or equal to 850 nm is 3000 L mol -1 ·cm -1 It is preferable that the concentration is less than 1000 L·mol -1 ·cm -1 It is more preferable that it is less than 100 L·mol -1 ·cm -1It is even more preferable that: (d) The maximum molar absorption coefficient in the wavelength range of 850 nm to 900 nm is 3000 L mol -1 ·cm -1 It is preferable that the concentration is less than 1000 L·mol -1 ·cm -1 It is more preferable that it is less than 100 L·mol -1 ·cm -1 It is even more preferable that:

[0095] The content of the triazine compound (TA) 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 even more preferably 10% by mass or less.

[0096] The content of the triazine compound (TA) is preferably 1 to 30 parts by mass relative to 100 parts by mass of the pigment. The lower limit is preferably 2% by mass or more, and more preferably 3% by mass or more. The upper limit is preferably 20 parts by mass or less, and more preferably 15% by mass or less. Only one type of compound (1) may be used, or two or more types may be used in combination. When two or more types are used in combination, the total amount thereof is preferably within the above range.

[0097] <<Polymerizable compounds>> The coloring composition of the present invention contains a polymerizable compound. As the polymerizable compound, a known compound capable of being crosslinked by a radical, an acid, or heat can be used. The polymerizable compound is preferably, for example, a compound having an ethylenically unsaturated bond-containing group. Examples of the ethylenically unsaturated bond-containing group include a vinyl group, a (meth)allyl group, and a (meth)acryloyl group. The polymerizable compound used in the present invention is preferably a radical polymerizable compound.

[0098] The polymerizable compound may be in any chemical form such as a monomer, a prepolymer, or an oligomer, but is preferably a monomer. The molecular weight of the polymerizable compound is preferably 100 to 3000. The upper limit is preferably 2000 or less, more preferably 1500 or less. The lower limit is preferably 150 or more, more preferably 250 or more.

[0099] The polymerizable compound is preferably a compound containing 3 or more ethylenically unsaturated bond-containing groups, more preferably a compound containing 3 to 15 ethylenically unsaturated bond-containing groups, and even more preferably a compound containing 3 to 6 ethylenically unsaturated bond-containing groups. The polymerizable compound is preferably a 3-15 functional (meth)acrylate compound, and more preferably a 3-6 functional (meth)acrylate compound. Specific examples of the polymerizable compound include compounds described in paragraphs 0095 to 0108 of JP 2009-288705 A, paragraph 0227 of JP 2013-029760 A, paragraphs 0254 to 0257 of JP 2008-292970 A, paragraphs 0034 to 0038 of JP 2013-253224 A, paragraph 0477 of JP 2012-208494 A, JP 2017-048367 A, Japanese Patent No. 6057891 A, Japanese Patent No. 6031807 A, and JP 2017-194662 A, the contents of which are incorporated herein by reference.

[0100] Preferred polymerizable compounds include dipentaerythritol triacrylate (commercially available product: KAYARAD D-330, manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetraacrylate (commercially available product: KAYARAD D-320, manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol penta(meth)acrylate (commercially available product: KAYARAD D-310, manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol hexa(meth)acrylate (commercially available products: KAYARAD DPHA, manufactured by Nippon Kayaku Co., Ltd., and NK Ester A-DPH-12E, manufactured by Shin-Nakamura Chemical Co., Ltd.), and compounds having a structure in which these (meth)acryloyl groups are bonded via ethylene glycol and / or propylene glycol residues (e.g., SR454, SR499, commercially available from Sartomer Co., Ltd.). In addition, examples of the polymerizable compound that can be used include diglycerol EO (ethylene oxide) modified (meth)acrylate (commercially available product is 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., KAYARAD HDDA), RP-1040 (manufactured by Nippon Kayaku Co., Ltd.), Aronix TO-2349 (manufactured by Toagosei Co., Ltd.), NK Oligo UA-7200 (manufactured by Shin-Nakamura Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), and light acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.).

[0101] In addition, it is also preferable to use, as the polymerizable compound, a trifunctional (meth)acrylate compound such as trimethylolpropane tri(meth)acrylate, trimethylolpropane propyleneoxy-modified tri(meth)acrylate, trimethylolpropane ethyleneoxy-modified tri(meth)acrylate, isocyanuric acid ethyleneoxy-modified tri(meth)acrylate, or pentaerythritol tri(meth)acrylate. Commercially available trifunctional (meth)acrylate compounds include ARONIX M-309, M-310, M-321, M-350, M-360, M-313, M-315, M-306, 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.).

[0102] The polymerizable compound may also be a compound having an acid group. By using a polymerizable compound having an acid group, the coloring composition in the unexposed area is easily removed during development, and the generation of development residues can be suppressed. Examples of the acid group include a carboxyl group, a sulfo group, and a phosphate group, and a carboxyl group is preferred. Examples of commercially available polymerizable compounds having an acid group include ARONIX M-305, M-510, M-520, and ARONIX TO-2349 (manufactured by Toagosei Co., Ltd.). 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 of the coloring composition in the developer is good, and if it is 40 mgKOH / g or less, it is advantageous in terms of production and handling.

[0103] In a preferred embodiment, the polymerizable compound is a compound having a caprolactone structure. Polymerizable compounds having a caprolactone structure are commercially available as the KAYARAD DPCA series from Nippon Kayaku Co., Ltd., and examples thereof include DPCA-20, DPCA-30, DPCA-60, and DPCA-120.

[0104] The polymerizable compound may also be a polymerizable compound having an alkyleneoxy group. The polymerizable compound having an alkyleneoxy group is preferably a polymerizable compound having an ethyleneoxy group and / or a propyleneoxy group, more preferably a polymerizable compound having an ethyleneoxy group, and even more preferably a trifunctional to hexafunctional (meth)acrylate compound having 4 to 20 ethyleneoxy groups. Commercially available polymerizable compounds having an alkyleneoxy group include, for example, SR-494, a tetrafunctional (meth)acrylate having four ethyleneoxy groups manufactured by Sartomer, and KAYARAD TPA-330, a trifunctional (meth)acrylate having three isobutyleneoxy groups.

[0105] The polymerizable compound may also be a polymerizable compound having a fluorene skeleton. Commercially available polymerizable compounds having a fluorene skeleton include OGSOL EA-0200 and EA-0300 (manufactured by Osaka Gas Chemicals Co., Ltd., (meth)acrylate monomers having a fluorene skeleton).

[0106] It is also preferable to use a polymerizable compound that does not substantially contain environmentally regulated substances such as toluene. Examples of commercially available products of such compounds include KAYARAD DPHA LT and KAYARAD DPEA-12 LT (manufactured by Nippon Kayaku Co., Ltd.).

[0107] As the polymerizable compound, urethane acrylates as described in JP-B-48-041708, JP-A-51-037193, JP-B-02-032293, and JP-B-02-016765, and urethane compounds having an ethylene oxide skeleton as described in JP-B-58-049860, JP-B-56-017654, JP-B-62-039417, and JP-B-62-039418 are also suitable. In addition, it is also preferable to use polymerizable compounds having an amino structure or a sulfide structure in the molecule as described in JP-A-63-277653, JP-A-63-260909, and JP-A-01-105238. In addition, commercially available polymerizable compounds 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.

[0108] 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 even more preferably 1% by mass or more. The upper limit is more preferably 45% by mass or less, and even more preferably 40% by mass or less. The polymerizable compound may be used alone or in combination of two or more kinds. When two or more kinds are used in combination, the total of them is preferably within the above range.

[0109] <<Photopolymerization initiator>> The coloring composition of the present invention contains a photopolymerization initiator. The photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, a compound having photosensitivity to light rays in the ultraviolet to visible light range is preferred. The photopolymerization initiator is preferably a photoradical polymerization initiator.

[0110] Examples of the photopolymerization initiator include halogenated hydrocarbon derivatives (e.g., compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds, hexaarylbiimidazole, oxime compounds, organic peroxides, thio 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 an oxime compound, an α-hydroxyketone compound, an α-aminoketone compound, and an acylphosphine compound, and even more preferably an oxime compound. Examples of the photopolymerization initiator include compounds described in paragraphs 0065 to 0111 of JP2014-130173A and Japanese Patent No. 6301489, the contents of which are incorporated herein by reference.

[0111] Commercially available α-hydroxyketone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (manufactured by IGM Resins BV), Irgacure 184, Irgacure 1173, Irgacure 2959, Irgacure 127 (manufactured by BASF), etc. Commercially available α-aminoketone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (manufactured by IGM Resins BV), Irgacure 907, Irgacure 369, Irgacure 369E, Irgacure 379EG (manufactured by BASF), etc. Commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (both manufactured by IGM Resins BV), Irgacure 819, Irgacure TPO (both manufactured by BASF), and the like.

[0112] 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 J.C.S. Perkin II (1979, pp. 1653-1660), compounds described in J.C.S. Perkin II (1979, pp. 156-162), compounds described in Journal of Photopolymer Science and Technology (1995, pp. 202-232), compounds described in JP 2000-066385 A, compounds described in JP 2000-080068 A, compounds described in JP-T-2004-534797 A, compounds described in JP 2006-342166 A, compounds described in JP 2017-019766 A, compounds described in Japanese Patent No. 6065596, compounds described in WO 2015 / 152153, compounds described in WO 2017 / 051680, compounds described in JP 2017-198865 A, compounds described in paragraphs 0025 to 0038 of WO 2017 / 164127, compounds described in WO 2013 / 167515, and the like. Specific examples of the oxime compound include 3-benzoyloxyiminobutan-2-one, 3-acetoxyiminobutan-2-one, 3-propionyloxyiminobutan-2-one, 2-acetoxyiminopentan-3-one, 2-acetoxyimino-1-phenylpropan-1-one, 2-benzoyloxyimino-1-phenylpropan-1-one, 3-(4-toluenesulfonyloxy)iminobutan-2-one, and 2-ethoxycarbonyloxyimino-1-phenylpropan-1-one. Examples of commercially available products include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, and Irgacure OXE04 (all manufactured by BASF), TR-PBG-304 (manufactured by Changzhou Strong Electronic New Materials Co., Ltd.), and Adeka Optomer N-1919 (manufactured by ADEKA Corporation, photopolymerization initiator 2 described in JP 2012-014052 A). In addition, it is also preferable to use, as the oxime compound, a compound that is not colorable or a compound that is highly transparent and does not easily discolor.Commercially available products include ADEKA Arcles NCI-730, NCI-831, and NCI-930 (all manufactured by ADEKA Corporation).

[0113] In addition, an oxime compound having a fluorene ring can also be used as the photopolymerization initiator. Specific examples of the oxime compound having a fluorene ring include the compounds described in JP2014-137466A.

[0114] In addition, an oxime compound having a skeleton in which at least one benzene ring of a carbazole ring is replaced with a naphthalene ring can also be used as the photopolymerization initiator. Specific examples of such oxime compounds include the compounds described in WO 2013 / 083505.

[0115] In addition, an oxime compound having a fluorine atom can also be used as the photopolymerization initiator. Specific examples of the oxime compound having a fluorine atom include the 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.

[0116] In the present invention, an oxime compound having a nitro group can be used as a photopolymerization initiator. It is also preferable that the oxime compound having a nitro group is a dimer. Specific examples of the oxime compound having a nitro group include the compounds described in paragraphs 0031 to 0047 of JP 2013-114249 A, paragraphs 0008 to 0012, and 0070 to 0079 of JP 2014-137466 A, the compounds described in paragraphs 0007 to 0025 of Japanese Patent No. 4223071 A, and Adeka Arcles NCI-831 (manufactured by ADEKA Corporation).

[0117] In addition, an oxime compound having a benzofuran skeleton can also be used as the photopolymerization initiator. Specific examples include OE-01 to OE-75 described in WO 2015 / 036910.

[0118] Specific examples of oxime compounds that can be preferably used in the present invention are shown below, but the present invention is not limited to these.

[0119] [ka] [ka]

[0120] The oxime compound is preferably a compound having a maximum absorption wavelength in the wavelength range of 350 to 500 nm, more preferably a compound having a maximum absorption wavelength in the wavelength range of 360 to 480 nm. In addition, the molar absorption coefficient of the oxime compound at a wavelength of 365 nm or 405 nm is preferably high from the viewpoint of sensitivity, more preferably 1000 to 300000, even more preferably 2000 to 300000, and particularly preferably 5000 to 200000. The molar absorption coefficient of the compound can be measured using a known method. For example, it is preferable to measure using ethyl acetate at a concentration of 0.01 g / L using a spectrophotometer (Varian Cary-5 spectrophotometer).

[0121] As the photopolymerization initiator, a bifunctional or trifunctional or higher functional photoradical polymerization initiator may be used. By using such a photoradical polymerization initiator, two or more radicals are generated from one molecule of the photoradical polymerization initiator, so that good sensitivity can be obtained. In addition, when a compound having an asymmetric structure is used, crystallinity is reduced and solubility in a solvent or the like is improved, so that precipitation is less likely to occur over time, and the stability over time of the coloring composition can be improved. Specific examples of bifunctional or trifunctional or higher functional photoradical polymerization initiators include dimers of oxime compounds described in JP-T-2010-527339, JP-T-2011-524436, WO-P-2015 / 004565, WO-P-2016-532675, paragraphs 0407 to 0412, and WO-P-2017 / 033680, paragraphs 0039 to 0055, compounds (E) and (G) described in WO-P-2013-522445, and compounds (H) and (I) described in WO-P-2015-522445, and compounds (I) and (II ... Examples of the photoinitiator include Cmpd1 to 7 described in Publication No. 2016 / 034963, the oxime ester photoinitiator described in paragraph 0007 of JP-T-2017-523465, the photoinitiator described in paragraphs 0020 to 0033 of JP-A-2017-167399, the photopolymerization initiator (A) described in paragraphs 0017 to 0026 of JP-A-2017-151342, and the oxime ester photoinitiator described in Japanese Patent No. 6,469,669.

[0122] The content of the photopolymerization initiator in the total solid content of the coloring composition of the present invention is preferably 0.1 to 30% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more. The upper limit is preferably 20% by mass or less, more preferably 15% by mass or less. 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 thereof is preferably within the above range.

[0123] <<Resin>> The coloring composition of the present invention may contain a resin. The resin is blended, for example, for dispersing a pigment in the coloring composition or for use as a binder. A resin used mainly for dispersing a pigment is also called a dispersant. However, such uses of the resin are merely examples, and the resin may be used for purposes other than these uses.

[0124] Examples of the resin include (meth)acrylic resins, (meth)acrylamide resins, epoxy resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, polyimide resins, polyamide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, siloxane resins, polyimine resins, and polyurethane resins.

[0125] 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, and more preferably 500,000 or less. The lower limit is preferably 4,000 or more, and more preferably 5,000 or more.

[0126] The coloring composition of the present invention preferably contains an alkali-soluble resin. By containing an alkali-soluble resin in the coloring composition of the present invention, the developability of the coloring composition is improved, and when a pattern is formed by a photolithography method using the coloring composition of the present invention, the occurrence of development residues can be effectively suppressed. The alkali-soluble resin may be a resin having an acid group. Examples of the acid group include a carboxyl group, a phosphoric acid group, a sulfo group, and a phenolic hydroxyl group, and the carboxyl group is preferable. The acid group of the alkali-soluble resin may be only one type or two or more types. The alkali-soluble resin can also be used as a dispersant.

[0127] The alkali-soluble resin preferably contains a repeating unit having an acid group on the side chain, and more preferably contains 5 to 70 mol % of the repeating units having an acid group on the side chain based on the total repeating units of the resin. The upper limit of the content of the repeating units having an acid group on the side chain is preferably 50 mol % or less, and more preferably 30 mol % or less. The lower limit of the content of the repeating units having an acid group on the side chain is preferably 10 mol % or more, and more preferably 20 mol % or more.

[0128] The alkali-soluble resin is also preferably an alkali-soluble resin having a polymerizable group. Examples of the polymerizable group include a (meth)allyl group and a (meth)acryloyl group. The alkali-soluble resin having a polymerizable group is preferably a resin containing a repeating unit having a polymerizable group in a side chain and a repeating unit having an acid group in a side chain.

[0129] It is also preferable that the alkali-soluble resin contains a repeating unit derived from a monomer component including a compound represented by the following formula (ED1) and / or a compound represented by the following formula (ED2) (hereinafter, these compounds may be referred to as "ether dimers").

[0130] [ka]

[0131] In formula (ED1), R 1 and R 2 each independently represents a hydrogen atom or a hydrocarbon group having 1 to 25 carbon atoms which may have a substituent. [ka] In formula (ED2), R represents a hydrogen atom or an organic group having a carbon number of 1 to 30. For details of formula (ED2), the disclosure of JP-A-2010-168539 can be referred to, the contents of which are incorporated herein by reference.

[0132] Specific examples of ether dimers can be found in, for example, paragraph 0317 of JP2013-029760A, the contents of which are incorporated herein by reference.

[0133] For alkali-soluble resins, the following descriptions may be referred to: paragraphs 0558 to 0571 of JP 2012-208494 A (corresponding paragraphs 0685 to 0700 of U.S. Patent Application Publication No. 2012 / 0235099); paragraphs 0076 to 0099 of JP 2012-198408 A; and JP 2018-105911 A, the contents of which are incorporated herein by reference.

[0134] The acid value of the alkali-soluble resin 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 even more preferably 200 mgKOH / g or less. The weight average molecular weight (Mw) of the alkali-soluble resin is preferably 5,000 to 100,000.

[0135] The coloring composition of the present invention preferably contains a resin having an aromatic carboxyl group (hereinafter also referred to as resin Ac). By using resin Ac, a pigment-triazine compound (TA)-resin Ac network is easily formed in the film, and the aggregation of the pigment in the film can be effectively suppressed, and a film with little color unevenness can be formed. Resin Ac is also an alkali-soluble resin.

[0136] In the resin Ac, the aromatic carboxyl group may be included in the main chain of the repeating unit, or may be included in the side chain of the repeating unit. The aromatic carboxyl group is preferably included in the main chain of the repeating unit because the above-mentioned effects are more likely to be obtained. Although the details are unclear, it is presumed that the presence of the aromatic carboxyl group near the main chain further improves these properties. In this specification, the aromatic carboxyl group refers to a group having a structure in which one or more carboxyl groups are bonded to an aromatic ring. In the aromatic carboxyl group, the number of carboxyl groups bonded to the aromatic ring is preferably 1 to 4, and more preferably 1 to 2.

[0137] The resin Ac is preferably a resin containing at least one repeating unit selected from the repeating unit represented by formula (b-1) and the repeating unit represented by formula (b-10). [ka] In formula (b-1), Ar 1 represents a group containing an aromatic carboxyl group, L 1 represents -COO- or -CONH-, and L 2 represents a divalent linking group. In formula (b-10), Ar 10 represents a group containing an aromatic carboxyl group, L 11 represents -COO- or -CONH-, and L 12 represents a trivalent linking group, P 10 represents a polymer chain.

[0138] First, formula (b-1) will be described. In formula (b-1), Ar 1 Examples of the group containing an aromatic carboxyl group represented by the formula (1) include a structure derived from an aromatic tricarboxylic acid anhydride, a structure derived from an aromatic tetracarboxylic acid anhydride, etc. Examples of the aromatic tricarboxylic acid anhydride and the aromatic tetracarboxylic acid anhydride include compounds having the following structures. [ka]

[0139] In the above formula, Q 1 represents a single bond, -O-, -CO-, -COOCH2CH2OCO-, -SO2-, -C(CF3)2-, a group represented by the following formula (Q-1) or a group represented by the following formula (Q-2). [ka]

[0140] Ar 1 Specific examples of the group containing an aromatic carboxyl group represented by formula (Ar-1), (Ar-2), (Ar-3), and the like can be mentioned. [ka]

[0141] In formula (Ar-1), n1 represents an integer of 1 to 4, preferably 1 or 2, and more preferably 2. In formula (Ar-2), n2 represents an integer of 1 to 8, preferably an integer of 1 to 4, more preferably 1 or 2, and further preferably 2. In formula (Ar-3), n3 and n4 each independently represent an integer of 0 to 4, and are preferably an integer of 0 to 2, more preferably 1 or 2, and further preferably 1. However, at least one of n3 and n4 is an integer of 1 or greater. In formula (Ar-3), Q 1 represents a single bond, -O-, -CO-, -COOCH2CH2OCO-, -SO2-, -C(CF3)2-, a group represented by the above formula (Q-1) or a group represented by the above formula (Q-2).

[0142] In formula (b-1), L 1 represents -COO- or -CONH-, and preferably represents -COO-.

[0143] In formula (b-1), L 2Examples of the divalent linking group represented by include an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S-, and a group combining two or more of these. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15. The alkylene group may be linear, branched, or cyclic. The number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10. The alkylene group and the arylene group may have a substituent. Examples of the substituent include a hydroxy group. L 2 The divalent linking group represented by is -OL 2a It is preferable that L is a group represented by -O-. 2a Examples of the alkylene group include an alkylene group; an arylene group; a group obtained by combining an alkylene group with an arylene group; and a group obtained by combining at least one selected from an alkylene group and an arylene group with at least one selected from -O-, -CO-, -COO-, -OCO-, -NH-, and -S-. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15. The alkylene group may be linear, branched, or cyclic. The alkylene group and the arylene group may have a substituent. Examples of the substituent include a hydroxyl group.

[0144] Next, formula (b-10) will be described. In formula (b-10), Ar 10 The aromatic carboxyl group-containing group represented by the formula (b-1) is Ar 1 The same definition and preferred range are also the same.

[0145] In formula (b-10), L 11 represents -COO- or -CONH-, and preferably represents -COO-.

[0146] In formula (b-10), L 12Examples of the trivalent linking group represented by include a hydrocarbon group, -O-, -CO-, -COO-, -OCO-, -NH-, -S-, and a group combining two or more of these. Examples of the hydrocarbon group include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. The number of carbon atoms in the aliphatic hydrocarbon group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15. The aliphatic hydrocarbon group may be linear, branched, or cyclic. The number of carbon atoms in the aromatic hydrocarbon group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10. The hydrocarbon group may have a substituent. Examples of the substituent include a hydroxyl group.

[0147] In formula (b-10), P 10 represents a polymer chain. P 10 The polymer chain represented by the formula (I) preferably has at least one repeating unit selected from the group consisting of poly(meth)acrylic repeating units, polyether repeating units, polyester repeating units, and polyol repeating units. 10 The weight average molecular weight of is preferably 500 to 20,000. The lower limit is preferably 1,000 or more. The upper limit is preferably 10,000 or less, more preferably 5,000 or less, and even more preferably 3,000 or less. 10 If the weight average molecular weight is within the above range, the pigment has good dispersibility in the composition. When the resin having an aromatic carboxyl group is a resin having a repeating unit represented by formula (b-10), this resin is preferably used as a dispersant.

[0148] The weight average molecular weight of resin Ac is preferably 2000 to 35000. The upper limit is preferably 25000 or less, and more preferably 15000 or less. The lower limit is preferably 4000 or more, and more preferably 7000 or more.

[0149] The acid value of the resin Ac is preferably 5 to 200 mgKOH / g. The lower limit is preferably 10 mgKOH / g or more, more preferably 15 mgKOH / g or more, and even more preferably 20 mgKOH / g or more. The upper limit is preferably 150 mgKOH / g or less, and more preferably 100 mgKOH / g or less.

[0150] The coloring composition of the present invention may also contain a resin as a dispersant. Examples of dispersants include acidic dispersants (acidic resins) and basic dispersants (basic resins). Here, the acidic dispersant (acidic resin) refers to a resin in which the amount of acid groups is greater than the amount of basic groups. The acidic dispersant (acidic resin) is preferably a resin in which the amount of acid groups is 70 mol% or more when the total amount of the acid groups and the basic groups is 100 mol%, and more preferably a resin substantially composed of only acid groups. The acid group possessed by the acidic dispersant (acidic resin) is preferably 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 even more preferably 60 to 105 mgKOH / g. The basic dispersant (basic resin) refers to a resin in which the amount of basic groups is greater than the amount of acid groups. The basic dispersant (basic resin) is preferably a resin having a basic group content of more than 50 mol % when the total amount of the acid group and the basic group is taken as 100 mol %. The basic group possessed by the basic dispersant is preferably an amino group.

[0151] 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 forming a pattern by photolithography.

[0152] The resin used as the dispersant is preferably a graft resin. For details of the graft resin, refer to paragraphs 0025 to 0094 of JP2012-255128A, the contents of which are incorporated herein by reference.

[0153] The resin used as the dispersant is preferably a polyimine-based dispersant containing nitrogen atoms in at least one of the main chain and the side chain. The polyimine-based dispersant is preferably a resin having a main chain with a partial structure having a functional group with a pKa of 14 or less, a side chain with an atomic number of 40 to 10,000, and a basic nitrogen atom in at least one of the main chain and the side chain. There is no particular limitation on the basic nitrogen atom as long as it is a nitrogen atom that exhibits basicity. For the polyimine-based dispersant, the description in paragraphs 0102 to 0166 of JP 2012-255128 A can be referred to, and the contents thereof are incorporated herein.

[0154] The resin used as the dispersant is preferably a resin having a structure in which a plurality of polymer chains are bonded to a core portion. Examples of such resins include dendrimers (including star-shaped polymers). Specific examples of dendrimers include polymer compounds C-1 to C-31 described in paragraphs 0196 to 0209 of JP2013-043962A.

[0155] Moreover, the above-mentioned resin Ac can also be used as a dispersant.

[0156] The resin used as the dispersant is also preferably a resin containing a repeating unit having an ethylenically unsaturated bond-containing group in a side chain. The content of the repeating unit having an ethylenically unsaturated bond-containing group in a side chain is preferably 10 mol% or more, more preferably 10 to 80 mol%, and even more preferably 20 to 70 mol% of all repeating units of the resin. In addition, the resin described in JP 2018-087939 A can also be used as the dispersant.

[0157] Dispersants are also available as commercially available products, and specific examples thereof include the DISPERBYK series manufactured by BYK Japan, the SOLSPERSE series manufactured by Lubrizol Japan, the Efka series manufactured by BASF, and the Ajisper series manufactured by Ajinomoto Fine-Techno Co., Ltd. In addition, the product described in paragraph number 0129 of JP 2012-137564 A and the product described in paragraph number 0235 of JP 2017-194662 A can also be used as a dispersant. In addition, the dispersant may be a compound described in JP 2018-150498 A, JP 2017-100116 A, JP 2017-100115 A, JP 2016-108520 A, JP 2016-108519 A, or JP 2015-232105 A.

[0158] 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 mass %. The lower limit is preferably 10 mass % or more, more preferably 15 mass % or more. The upper limit is preferably 40 mass % or less, more preferably 35 mass % or less, and even more preferably 30 mass % or less.

[0159] The content of the 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, 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 even more preferably 30% by mass or less. The content of the resin having an acid group in the total amount of resin is preferably 30% by mass or more, more preferably 50% by mass or more, even more preferably 70% by mass or more, and particularly preferably 80% by mass or more, because excellent developability is easily obtained. The upper limit can be 100% by mass, can be 95% by mass, or can be 90% by mass or less.

[0160] The content of the alkali-soluble 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, 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 even more preferably 30% by mass or less. The content of the alkali-soluble resin in the total amount of resin is preferably 30% by mass or more, more preferably 50% by mass or more, even more preferably 70% by mass or more, and particularly preferably 80% by mass or more, because excellent developability is easily obtained. The upper limit can be 100% by mass, can be 95% by mass, or can be 90% by mass or less.

[0161] The content of resin Ac in the total solid content of the coloring composition is preferably 1 to 50% by mass. The lower limit is preferably 5% by mass or more, more preferably 10% by mass or more. The upper limit is preferably 45% by mass or less, more preferably 40% by mass or less, and even more preferably 35% by mass or less. The content of resin Ac in the total amount of resin is preferably 50% by mass or more, more preferably 60% by mass or more, and even more preferably 70% by mass or more. The upper limit may be 100% by mass, 99% by mass or less, 95% by mass or less, or 90% by mass or less.

[0162] 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 from the viewpoints of curability, developability and film formability. The lower limit is preferably 15% by mass or more, more preferably 20% by mass or more, and even more preferably 30% by mass or more. The upper limit is preferably 60% by mass or less, more preferably 50% by mass or less, and even more preferably 40% by mass or less. It is preferable that the resin is contained in an amount of 30 to 300 parts by mass per 100 parts by mass of the polymerizable compound. 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.

[0163] <<Compounds containing cyclic ether groups>> 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 and an oxetanyl group. 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 a compound having two or more epoxy groups is preferable. The number of epoxy groups in one molecule is preferably 1 to 100. The upper limit of the epoxy groups can be, for example, 10 or less, or 5 or less. The lower limit of the epoxy groups is preferably 2 or more. As the compound having an epoxy group, the compounds described in paragraphs 0034 to 0036 of JP 2013-011869 A, paragraphs 0147 to 0156 of JP 2014-043556 A, paragraphs 0085 to 0092 of JP 2014-089408 A, and the compounds described in JP 2017-179172 A can also be used. The contents of these are incorporated herein by reference.

[0164] The compound having an epoxy group may be either a low molecular weight compound (e.g., molecular weight less than 1000) or a high molecular weight compound (macromolecule) (e.g., molecular weight 1000 or more, in the case of a polymer, weight average molecular weight 1000 or more). The weight average molecular weight of the compound having an epoxy group is preferably 200 to 100000, 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 even more preferably 3000 or less.

[0165] As the compound having an epoxy group, an epoxy resin can be preferably used. Examples of the epoxy resin include an epoxy resin which is a glycidyl ether of a phenolic compound, an epoxy resin which is a glycidyl ether of various novolac resins, an alicyclic epoxy resin, an aliphatic epoxy resin, a heterocyclic epoxy resin, a glycidyl ester epoxy resin, a glycidyl amine epoxy resin, an epoxy resin obtained by glycidylating halogenated phenols, a condensate of a silicon compound having an epoxy group and another silicon compound, a copolymer of a polymerizable unsaturated compound having an epoxy group and another polymerizable unsaturated compound, and the like. The epoxy equivalent of the epoxy resin is preferably 310 to 3300 g / eq, more preferably 310 to 1700 g / eq, and even more preferably 310 to 1000 g / eq.

[0166] Examples of commercially available compounds having a cyclic ether group include EHPE3150 (manufactured by Daicel Corporation), EPICLON N-695 (manufactured by DIC Corporation), Marproof G-0150M, G-0105SA, G-0130SP, G-0250SP, G-1005S, G-1005SA, G-1010S, G-2050M, G-01100, and G-01758 (all manufactured by NOF Corporation, epoxy group-containing polymers).

[0167] When the coloring composition of the present invention contains a compound having a cyclic ether group, the content of the compound having a cyclic ether group in the total solid content of the coloring composition is preferably 0.1 to 20% by mass. The lower limit is, for example, preferably 0.5% by mass or more, and more preferably 1% by mass or more. The upper limit is, for example, preferably 15% by mass or less, and more preferably 10% by mass or less. The compound having a cyclic ether group may be one type or two or more types. In the case of two or more types, the total amount thereof is preferably within the above range.

[0168] <<Silane coupling agents>> The coloring composition of the present invention may contain a silane coupling agent. According to this embodiment, the adhesion of the obtained film to the support can be further improved. In the present invention, the silane coupling agent means a silane compound having a hydrolyzable group and a functional group other than the hydrolyzable group. In addition, the hydrolyzable group refers to a substituent that is directly bonded to a silicon atom and can generate a siloxane bond by at least one of a hydrolysis reaction and a condensation reaction. Examples of the hydrolyzable group include a halogen atom, an alkoxy group, and an acyloxy group, and an alkoxy group is preferable. That is, the silane coupling agent is preferably a compound having an alkoxysilyl group. In addition, examples of functional groups other than the hydrolyzable group include a vinyl group, a (meth)allyl group, a (meth)acryloyl group, a mercapto group, an epoxy group, an oxetanyl group, an amino group, a ureido group, a sulfide group, an isocyanate group, and a phenyl group, and an amino group, a (meth)acryloyl group, and an epoxy group are preferable. Specific examples of the silane coupling agent include N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBM-602), N-β-aminoethyl-γ-aminopropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBM-603), N-β-aminoethyl-γ-aminopropyltriethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBE-602), γ-aminopropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBM-903), γ-aminopropyltriethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBE-903), 3-methacryloxypropylmethyldimethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBM-502), and 3-methacryloxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., trade name KBM-503). Specific examples of the silane coupling agent include the compounds described in paragraphs 0018 to 0036 of JP-A No. 2009-288703 and the compounds described in paragraphs 0056 to 0066 of JP-A No. 2009-242604, the contents of which are incorporated herein by reference.

[0169] 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, more preferably 2% by mass or less. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more. The silane coupling agent may be one type or two or more types. In the case of two or more types, the total amount is preferably within the above range.

[0170] <<Solvent>> The coloring composition of the present invention may contain a solvent. Examples of the solvent include organic solvents. Basically, the solvent is not particularly limited as long as it satisfies the solubility of each component and the coatability of the coloring composition. Examples of the organic solvent include ester-based solvents, ketone-based solvents, alcohol-based solvents, amide-based solvents, ether-based solvents, and hydrocarbon-based solvents. For details of these, reference can be made to paragraph number 0223 of International Publication No. 2015 / 166779, the contents of which are incorporated herein by reference. In addition, ester-based solvents substituted with a cyclic alkyl group and ketone-based solvents substituted with a cyclic alkyl group can also be preferably used. Specific examples of organic solvents include polyethylene glycol monomethyl ether, dichloromethane, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2-heptanone, cyclohexanone, cyclohexyl acetate, cyclopentanone, ethyl carbitol acetate, butyl carbitol acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, 3-methoxy-N,N-dimethylpropanamide, 3-butoxy-N,N-dimethylpropanamide, etc. However, aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as solvents may be reduced for environmental reasons (for example, the amount of the total organic solvent may be 50 mass ppm (parts per million) or less, 10 mass ppm or less, or 1 mass ppm or less).

[0171] In the present invention, it is preferable to use a solvent with a low metal content, and the metal content of the solvent is preferably 10 mass ppb (parts per billion) or less. If necessary, a solvent with a mass ppt (parts per trillion) level may be used, and such a high purity solvent is provided, for example, by Toyo Gosei Co., Ltd. (The Chemical Daily, November 13, 2015).

[0172] Methods for removing impurities such as metals from a solvent include, for example, distillation (molecular distillation, thin-film distillation, etc.) and filtration using a filter. The filter used for filtration has a filter pore size of preferably 10 μm or less, more preferably 5 μm or less, and even more preferably 3 μm or less. The filter material is preferably polytetrafluoroethylene, polyethylene, or nylon.

[0173] The solvent may contain isomers (compounds having the same number of atoms but different structures). In addition, the solvent may contain only one type of isomer or multiple types of isomers.

[0174] In the present invention, the content of peroxide in the organic solvent is preferably 0.8 mmol / L or less, and more preferably contains substantially no peroxide.

[0175] The content of the solvent in the coloring composition is preferably from 10 to 95% by mass, more preferably from 20 to 90% by mass, and further preferably from 30 to 90% by mass.

[0176] In addition, the coloring composition of the present invention preferably does not substantially contain environmentally regulated substances from the viewpoint of environmental regulations. In the present invention, substantially not containing environmentally regulated substances means that the content of the environmentally regulated substances in the coloring composition is 50 mass ppm or less, preferably 30 mass ppm or less, more preferably 10 mass ppm or less, and particularly preferably 1 mass ppm or less. Examples of environmentally regulated substances include benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene. These are registered as environmentally regulated substances under the REACH (Registration Evaluation Authorization and Restriction of CHemicals) regulations, the PRTR (Pollutant Release and Transfer Register) Act, and the VOC (Volatile Organic Compounds) regulations, and the amount of use and the handling method are strictly regulated. These compounds may be used as solvents when producing each component used in the coloring composition of the present invention, and may be mixed into the coloring composition as a residual solvent. From the viewpoint of human safety and environmental consideration, it is preferable to reduce these substances as much as possible. A method for reducing the environmentally regulated substances includes a method of heating or reducing the pressure in the system to a temperature equal to or higher than the boiling point of the environmentally regulated substances, and distilling off the environmentally regulated substances from the system. In addition, when a small amount of the environmentally regulated substances is distilled off, it is also useful to perform azeotropy with a solvent having a boiling point equivalent to that of the corresponding solvent in order to increase efficiency. In addition, when a compound having radical polymerizability is contained, a polymerization inhibitor or the like may be added and distilled off under reduced pressure in order to suppress crosslinking between molecules caused by the progress of radical polymerization reaction during distillation under reduced pressure. These distillation methods are possible at any stage, such as the stage of the raw materials, the stage of the product obtained by reacting the raw materials (for example, a resin solution or a polyfunctional monomer solution after polymerization), or the stage of a colored composition prepared by mixing these compounds.

[0177] <<Polymerization inhibitor>> 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-t-butylphenol), and N-nitrosophenylhydroxyamine salts (ammonium salts, cerous salts, etc.). Among these, 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.

[0178] <<Surfactants>> 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 the surfactant, the surfactants described in paragraphs 0238 to 0245 of WO 2015 / 166779 may be mentioned, the contents of which are incorporated herein by reference.

[0179] In the present invention, the surfactant is preferably a fluorosurfactant. By including a fluorosurfactant in the coloring composition, the liquid properties (particularly, fluidity) can be further improved, and the liquid saving can be further improved. In addition, a film with less unevenness in thickness can be formed.

[0180] The fluorine content in the fluorine-based surfactant is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, and particularly preferably 7 to 25% by mass. A fluorine-based surfactant having a fluorine content within this range is effective in terms of uniformity of the thickness of the coating film and liquid saving properties, and also has good solubility in a coloring composition.

[0181] Examples of fluorine-based surfactants include those described in JP2014-041318A, paragraphs 0060 to 0064 (corresponding to WO2014 / 017669, paragraphs 0060 to 0064) and those described in JP2011-132503A, paragraphs 0117 to 0132, the contents of which are incorporated herein by reference. Commercially available fluorine-based surfactants include, for example, Megafac F171, F172, F173, F176, F177, F141, F142, F143, F144, R30, F437, F475, F479, F482, F554, F780, EXP, and MFS-330 (all manufactured by DIC Corporation), Fluorad FC430, FC431, and 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, and KH-40 (all manufactured by AGC Corporation), and PolyFox. Examples include PF636, PF656, PF6320, PF6520, and PF7002 (all manufactured by OMNOVA).

[0182] In addition, the fluorosurfactant may be an acrylic compound that has a molecular structure with a functional group containing a fluorine atom, and when heat is applied, the functional group containing the fluorine atom is broken and the fluorine atom volatilizes. Examples of such fluorosurfactants include the Megafac DS series manufactured by DIC Corporation (The Chemical Daily (February 22, 2016), Nikkei Business Daily (February 23, 2016)), such as Megafac DS-21.

[0183] In addition, it is also preferable to use a polymer of a fluorine atom-containing vinyl ether compound having a fluorinated alkyl group or a fluorinated alkylene ether group and a hydrophilic vinyl ether compound as the fluorine-based surfactant. Examples of such a fluorine-based surfactant include the fluorine-based surfactants described in JP 2016-216602 A, the contents of which are incorporated herein by reference.

[0184] The fluorosurfactant may be a block polymer. For example, the compounds described in JP 2011-089090 A may be mentioned. The fluorosurfactant may preferably be a fluorine-containing polymer compound containing a repeating unit derived from a (meth)acrylate compound having a fluorine atom and a repeating unit derived from a (meth)acrylate compound having two or more (preferably five or more) alkyleneoxy groups (preferably ethyleneoxy groups, propyleneoxy groups). The following compounds are also exemplified as the fluorosurfactant used in the present invention. [ka] The weight average molecular weight of the above compound is preferably 3,000 to 50,000, for example, 14,000. In the above compound, % indicating the proportion of repeating units is mol %.

[0185] In addition, the fluorine-based surfactant may be a fluorine-containing polymer having an ethylenically unsaturated bond-containing group in a side chain.Specific examples include the compounds described in paragraphs 0050 to 0090 and 0289 to 0295 of JP 2010-164965 A, and Megafac RS-101, RS-102, RS-718K, and RS-72-K manufactured by DIC Corporation.In addition, the fluorine-based surfactant may be the compounds described in paragraphs 0015 to 0158 of JP 2015-117327 A.

[0186] Examples of nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane, and their ethoxylates and propoxylates (e.g., glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether, polyethylene glycol dilaurate, polyethylene glycol distearate, and sorbitan fatty acid. Examples of such an agent include ester, Pluronic L10, L31, L61, L62, 10R5, 17R2, and 25R2 (manufactured by BASF), Tetronic 304, 701, 704, 901, 904, and 150R1 (manufactured by BASF), Solsperse 20000 (manufactured by Lubrizol Japan Co., Ltd.), NCW-101, NCW-1001, and NCW-1002 (manufactured by Fujifilm Wako Pure Chemical Industries Co., Ltd.), Paionin D-6112, D-6112-W, and D-6315 (manufactured by Takemoto Oil Co., Ltd.), Olfin E1010, and Surfynol 104, 400, and 440 (manufactured by Nissin Chemical Industry Co., Ltd.).

[0187] Examples of silicone surfactants include Toray Silicone DC3PA, Toray Silicone SH7PA, Toray Silicone DC11PA, Toray Silicone SH21PA, Toray Silicone SH28PA, Toray Silicone SH29PA, Toray Silicone SH30PA, Toray Silicone SH8400 (all manufactured by Toray Dow Corning Co., Ltd.), TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (all manufactured by Momentive Performance Materials, Inc.), KP-341, KF-6001, KF-6002 (all manufactured by Shin-Etsu Silicone Co., Ltd.), BYK307, BYK323, BYK330 (all manufactured by BYK-Chemie).

[0188] The content of the surfactant in the total solid content of the coloring composition is preferably 0.001% by mass to 5.0% by mass, more preferably 0.005% by mass to 3.0% by mass. The surfactant may be one type or two or more types. In the case of two or more types, the total amount is preferably within the above range.

[0189] <<Ultraviolet absorbing agent>> The coloring composition of the present invention may contain an ultraviolet absorber. As the ultraviolet absorber, a conjugated diene compound, an aminodiene compound, a salicylate compound, a benzophenone compound, a benzotriazole compound, an acrylonitrile compound, a hydroxyphenyltriazine compound, an indole compound, a triazine compound, or the like may be used. Examples of such compounds include those described in paragraphs 0038 to 0052 of JP-A-2009-217221, paragraphs 0052 to 0072 of JP-A-2012-208374, paragraphs 0317 to 0334 of JP-A-2013-068814, and paragraphs 0061 to 0080 of JP-A-2016-162946, the contents of which are incorporated herein by reference. Specific examples of ultraviolet absorbers include compounds having the following structure. Examples of commercially available ultraviolet absorbers include UV-503 (manufactured by Daito Chemical Co., Ltd.). In addition, examples of the benzotriazole compound include the MYUA series manufactured by Miyoshi Oil & Fat Co., Ltd. (The Chemical Daily, February 1, 2016). In addition, the compounds described in paragraphs 0049 to 0059 of Japanese Patent No. 6268967 can also be used as the ultraviolet absorbing agent. [ka]

[0190] The content of the ultraviolet absorbent in the total solid content of the coloring composition is preferably 0.01 to 10 mass%, more preferably 0.01 to 5 mass%. In the present invention, only one type of ultraviolet absorbent may be used, or two or more types may be used. When two or more types are used, the total amount is preferably within the above range.

[0191] <<Antioxidants>> The coloring composition of the present invention may contain an antioxidant. Examples of the antioxidant include phenolic compounds, phosphite compounds, and thioether compounds. As the phenolic compound, any phenolic compound known as a phenolic antioxidant may be used. As a preferred phenolic compound, a hindered phenolic compound may be used. A compound having a substituent at the site (ortho position) adjacent to the phenolic hydroxy group is preferred. As the aforementioned substituent, a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferred. In addition, as the antioxidant, a compound having a phenolic group and a phosphite group in the same molecule is also preferred. As the antioxidant, a phosphorus-based antioxidant may also be suitably used. Examples of phosphorus-based antioxidants include tris[2-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl]oxy]ethyl]amine, tris[2-[(4,6,9,11-tetra-tert-butyldibenzo[d,f][1,3,2]dioxaphosphepin-2-yl)oxy]ethyl]amine, and ethyl bis(2,4-di-tert-butyl-6-methylphenyl)phosphite. Examples of commercially available antioxidants include ADK STAB AO-20, ADK STAB AO-30, ADK STAB AO-40, ADK STAB AO-50, ADK STAB AO-50F, ADK STAB AO-60, ADK STAB AO-60G, ADK STAB AO-80, and ADK STAB AO-330 (all manufactured by ADEKA CORPORATION). In addition, the antioxidant may be a compound described in paragraphs 0023 to 0048 of Japanese Patent No. 6268967, a compound described in International Publication No. WO 2017 / 006600, or a compound described in International Publication No. WO 2017 / 164024.

[0192] The content of the antioxidant in the total solid content of the coloring composition is preferably 0.01 to 20 mass%, more preferably 0.3 to 15 mass%. Only one type of antioxidant may be used, or two or more types may be used. When two or more types are used, the total amount is preferably within the above range.

[0193] <<Other ingredients>> The coloring composition of the present invention may contain, as necessary, a sensitizer, a curing accelerator, a filler, a heat curing accelerator, a plasticizer, and other auxiliaries (for example, conductive particles, fillers, defoamers, flame retardants, leveling agents, peeling accelerators, fragrances, surface tension regulators, chain transfer agents, etc.). By appropriately incorporating these components, it is possible to adjust properties such as film properties. For these components, for example, the description in paragraphs 0183 and after of JP-A-2012-003225 (corresponding to paragraph 0237 of US Patent Application Publication No. 2013 / 0034812), and the description in paragraphs 0101-0104, 0107-0109, etc. of JP-A-2008-250074 can be referred to, and the contents of these are incorporated herein. In addition, the coloring composition of the present invention may contain, as necessary, a latent antioxidant. Examples of the latent antioxidant include compounds in which the site functioning as an antioxidant is protected by a protecting group, and the protecting group is removed by heating at 100 to 250 ° C. or at 80 to 200 ° C. in the presence of an acid / base catalyst, and the compound functions as an antioxidant. Examples of the latent antioxidant include compounds described in International Publication No. 2014 / 021023, International Publication No. 2017 / 030005, and JP-A-2017-008219. Examples of commercially available latent antioxidants include Adeka Arcles GPA-5001 (manufactured by ADEKA Corporation). In addition, as described in JP-A-2018-155881, CI Pigment Yellow 129 may be added for the purpose of improving weather resistance.

[0194] In addition, a compound represented by the following formula (Q1) may be added. A specific example is 7,7,8,8-tetracyanoquinodimethane. [ka]

[0195] In formula (Q1), Rq 1 ~Rq 4each independently represents a hydrogen atom, a hydrocarbon group, a heterocyclic group, a halogen atom, a hydroxy group, an alkoxy group, an aryloxy group, an aldehyde group, an alkylcarbonyl group, an arylcarbonyl group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a thiol group, an alkylthio group, an arylthio group, a nitro group, an amino group, a sulfo group, a cyano group, a silyl group, a boronyl group, or a phosphino group; Rq 1 and Rq 2 , Rq 3 and Rq 4 may be bonded to each other to form a ring.

[0196] The coloring composition of the present invention may contain an ionic compound having a maximum molar absorption coefficient ε in the visible light region of 0 to 3000, and represented by the following formula (1). X + Y - (1) In formula (1), X + is an organic or inorganic cation, Z - is an anion having a cyano group, an anion having a nitro group, an anion having a halogenated hydrocarbon group, PF6 - , or BF4 - Represents.

[0197] Specific examples of the ionic compound include potassium bis(trifluoromethanesulfonyl)imide, lithium bis(trifluoromethanesulfonyl)imide, potassium N,N-bis(nonafluorobutanesulfonyl)imide, cesium tris(trifluoromethanesulfonyl)methide, and lithium tetrakis(pentafluorophenyl)borate. Specific examples of the ionic compound include the compounds described in paragraphs 0086 to 0122 of JP 2016-133604 A, the contents of which are incorporated herein by reference.

[0198] The coloring composition of the present invention may contain a metal oxide to adjust the refractive index of the resulting film. Examples of the metal oxide include TiO2, ZrO2, Al2O3, and SiO2. The primary particle size of the metal oxide is preferably 1 to 100 nm, more preferably 3 to 70 nm, and even more preferably 5 to 50 nm. The metal oxide may have a core-shell structure. In this case, the core may be hollow.

[0199] The colouring composition of the present invention may contain a light fastness improver. Examples of the light resistance improver include the compounds described in paragraphs 0036 to 0037 of JP-A-2017-198787, the compounds described in paragraphs 0029 to 0034 of JP-A-2017-146350, the compounds described in paragraphs 0036 to 0037 and 0049 to 0052 of JP-A-2017-129774, the compounds described in paragraphs 0031 to 0034 and 0058 to 0059 of JP-A-2017-129674, 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 WO 2017 / 164127, and the compounds described in paragraphs 0025 to 0039 of JP-A-2017-186546. JP-A-2015-025116, JP-A-2012-145604, JP-A-2012-103475, JP-A-2012-103475, JP-A-2012-103475, JP-A-2011-257591, JP-A-2011-257591, JP-A-2011-191483, JP-A-2011-145668, JP-A-2011-145668, JP-A-2011-253174 ...7591, JP-A-2011-257591, JP-A-2011-253174, JP-A-2011-253174, JP-A-2011-253174, JP-A-2011-253174, JP-A-2011-253174,

[0200] The coloring composition of the present invention preferably contains 100 ppm or less, more preferably 50 ppm or less, even more preferably 10 ppm or less, and particularly preferably substantially no free metal that is not bonded or coordinated to a pigment, etc. According to this embodiment, it is possible to expect effects such as stabilization of pigment dispersibility (prevention of aggregation), improvement of spectral characteristics due to improved dispersibility, stabilization of curable components, prevention of conductivity fluctuation due to elution of metal atoms and metal ions, and improvement of display characteristics. In addition, the effects described in JP 2012-153796 A, JP 2000-345085 A, JP 2005-200560 A, JP 08-043620 A, JP 2004-145078 A, JP 2014-119487 A, JP 2010-083997 A, JP 2017-090930 A, JP 2018-025612 A, JP 2018-025797 A, JP 2017-155228 A, JP 2018-036521 A, and the like can also be obtained. The above-mentioned free metals include 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. In addition, the coloring composition of the present invention preferably has a content of free halogens not bonded or coordinated with pigments, etc. of 100 ppm or less, more preferably 50 ppm or less, even more preferably 10 ppm or less, and particularly preferably substantially free. Examples of halogens include F, Cl, Br, I, and anions thereof. Methods for reducing free metals and halogens in the coloring composition include washing with ion-exchanged water, filtration, ultrafiltration, purification with ion-exchange resin, etc.

[0201] It is also preferable that the coloring composition of the present invention is substantially free of terephthalic acid ester. Here, "substantially free" means that the content of terephthalic acid ester in the total amount of the coloring composition is 1000 mass ppb or less, more preferably 100 mass ppb or less, and particularly preferably zero.

[0202] <Containment Container> The container for storing the coloring composition of the present invention is not particularly limited, and a known container can be used. In addition, it is also preferable to use a multi-layer bottle whose inner wall is made of six types of six-layer resin or a bottle with a seven-layer structure made of six types of resin as the container, in order to suppress the incorporation of impurities into the raw materials or the coloring composition. Examples of such containers include the containers described in JP-A-2015-123351. In addition, it is also preferable to make the inner wall of the container out of glass or stainless steel in order to prevent metal elution from the inner wall of the container, increase the storage stability of the composition, and suppress the deterioration of the components.

[0203] <Method of preparing coloring composition> The coloring composition of the present invention can be prepared by mixing the above-mentioned components. When preparing the coloring composition, all components may be dissolved and / or dispersed in a solvent at the same time to prepare the coloring composition, or, if necessary, each component may be appropriately prepared as two or more solutions or dispersions, and these may be mixed at the time of use (at the time of application) to prepare the coloring composition.

[0204] In addition, the preparation of the coloring composition preferably includes a process for dispersing the pigment. In the process for dispersing the pigment, examples of mechanical forces used for dispersing the pigment include compression, squeezing, impact, shear, and cavitation. Specific examples of these processes include a bead mill, a sand mill, a roll mill, a ball mill, a paint shaker, a microfluidizer, a high-speed impeller, a sand grinder, a flow jet mixer, high-pressure wet atomization, and ultrasonic dispersion. In addition, in the grinding of the pigment in a sand mill (bead mill), it is preferable to use beads with a small diameter, increase the bead packing rate, and perform the treatment under conditions that increase the grinding efficiency. In addition, it is preferable to remove coarse particles by filtration, centrifugation, or the like after the grinding treatment. In addition, the process and dispersing machine for dispersing the pigment may be suitably used as described in "Dispersion Technology Encyclopedia, published by Joho Kiko Co., Ltd., July 15, 2005" or "Dispersion Technology and Industrial Applications Focused on Suspension (Solid / Liquid Dispersion System) Comprehensive Data Collection, published by Management Development Center Publishing Department, October 10, 1978" and in paragraph number 0022 of JP2015-157893A. In addition, in the process for dispersing the pigment, a salt milling process may be performed to refine the particles. For the materials, equipment, processing conditions, etc. used in the salt milling process, the descriptions in, for example, JP2015-194521A and JP2012-046629A may be referred to.

[0205] In preparing the coloring composition, it is preferable to filter the coloring composition with a filter for the purpose of removing foreign matter and reducing defects. As the filter, any filter that has been used for filtering purposes can be used without any particular limitation. For example, there are filters using materials such as fluororesins such as polytetrafluoroethylene (PTFE), polyamide resins such as nylon (e.g., nylon-6, nylon-6,6), and polyolefin resins such as polyethylene and polypropylene (PP) (including high-density and ultra-high-molecular-weight polyolefin resins). Among these materials, polypropylene (including high-density polypropylene) and nylon are preferred.

[0206] The pore size of the filter is preferably 0.01 to 7.0 μm, more preferably 0.01 to 3.0 μm, and even more preferably 0.05 to 0.5 μm. If the pore size of the filter is within the above range, fine foreign matter can be removed more reliably. The nominal value of the filter manufacturer can be referred to for the pore size value of the filter. Various filters provided by Nippon Pall Corporation (DFA4201NIEY, etc.), Advantech Toyo Co., Ltd., Nippon Integris Co., Ltd. (formerly Nippon Microlith Co., Ltd.), Kitz Microfilter Co., Ltd., etc. can be used.

[0207] It is also preferable to use a fibrous filter medium as the filter. Examples of fibrous filter medium include polypropylene fiber, nylon fiber, glass fiber, etc. Commercially available products include SBP type series (SBP008, etc.), TPR type series (TPR002, TPR005, etc.), and SHPX type series (SHPX003, etc.) manufactured by ROKI TECHNO CO., LTD.

[0208] When using a filter, different filters (for example, a first filter and a second filter, etc.) may be combined. In this case, filtration with each filter may be performed only once or two or more times. Filters having different pore sizes within the above-mentioned range may be combined. Filtration with the first filter may be performed only on the dispersion liquid, and filtration with the second filter may be performed after mixing with other components.

[0209] <Membrane> The film of the present invention is a film obtained from the above-mentioned coloring composition of the present invention. The film of the present invention can be used for color filters, near-infrared transmission filters, near-infrared cut filters, black matrices, light-shielding films, refractive index adjustment films, etc. The film of the present invention can be preferably used as a color pixel of a color filter. Examples of the color pixel include red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, and yellow pixels, and green pixels are preferable. The film thickness of the film of the present invention can be appropriately adjusted depending on the purpose. For example, the film thickness is preferably 20 μm or less, more preferably 10 μm or less, and even more preferably 5 μm or less. The lower limit of the film thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more.

[0210] <Membrane manufacturing method> The film of the present invention can be produced by applying the above-mentioned coloring composition of the present invention onto a support. The film production method of the present invention preferably further includes a step of forming a pattern (pixel). The method of forming the pattern (pixel) is preferably a photolithography method.

[0211] The pattern formation by the photolithography method preferably includes a step of forming a coloring composition layer on a support using the coloring composition of the present invention, a step of exposing the coloring composition layer in a pattern, and a step of developing and removing the unexposed part of the coloring composition layer to form a pattern (pixel). If necessary, a step of baking the coloring composition layer (pre-baking step) and a step of baking the developed pattern (pixel) (post-baking step) may be provided.

[0212] <<Step of forming coloring composition layer>> In the step of forming a coloring composition layer, a coloring composition layer is formed on a support using the coloring composition of the present invention. The support is not particularly limited and can be appropriately selected depending on the application. For example, a glass substrate, a silicon substrate, etc. can be mentioned, and a silicon substrate is preferable. A charge-coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a transparent conductive film, etc. may be formed on the silicon substrate. A black matrix for isolating each pixel may be formed on the silicon substrate. An undercoat layer may be provided on the silicon substrate to improve adhesion with the upper layer, prevent diffusion of substances, or flatten the substrate surface. The surface contact angle of the undercoat layer is preferably 20 to 70° when measured with diiodomethane. Also, it is preferably 30 to 80° when measured with water. If the surface contact angle of the undercoat layer is within the above range, the coloring composition has good wettability. The surface contact angle of the undercoat layer can be adjusted by, for example, adding a surfactant.

[0213] The coloring composition can be applied by a known method. For example, a dropping method (drop casting), a slit coating method, a spray method, a roll coating method, a rotary coating method (spin coating), a casting coating method, a slit and spin method, a pre-wetting method (for example, a method described in JP-A-2009-145395), various printing methods such as ejection printing such as inkjet (for example, on-demand method, piezo method, thermal method), nozzle jet, flexographic printing, screen printing, gravure printing, reverse offset printing, and metal mask printing method, a transfer method using a mold, and a nanoimprint method can be mentioned. The application method in inkjet is not particularly limited, and examples thereof include the method shown in "Expanding and Usable Inkjet - Infinite Possibilities Seen in Patents -, published in February 2005, Sumibe Techno Research" (particularly pages 115 to 133), and the methods described in JP 2003-262716 A, JP 2003-185831 A, JP 2003-261827 A, JP 2012-126830 A, JP 2006-169325 A, etc. In addition, for the application method of the coloring composition, the descriptions in WO 2017 / 030174 and WO 2017 / 018419 can be referred to, and the contents of these are incorporated herein.

[0214] The colored composition layer formed on the support may be dried (prebaked). When the film is produced by a low-temperature process, prebaking may not be performed. When prebaking is performed, the prebaking temperature is preferably 150° C. or lower, more preferably 120° C. or lower, and even more preferably 110° C. or lower. The lower limit can be, for example, 50° C. or higher, and can also be 80° C. or higher. The prebaking time is preferably 10 to 300 seconds, more preferably 40 to 250 seconds, and even more preferably 80 to 220 seconds. Prebaking can be performed using a hot plate, an oven, or the like.

[0215] <<Exposure process>> Next, the coloring composition layer is exposed to light in a pattern (exposure step). For example, the coloring composition layer can be exposed to light in a pattern by using a stepper exposure machine or a scanner exposure machine through a mask having a predetermined mask pattern. This allows the exposed part to be cured.

[0216] Examples of radiation (light) that can be used for exposure include g-line and i-line. Light with a wavelength of 300 nm or less (preferably light with a wavelength of 180 to 300 nm) can also be used. Examples of light with a wavelength of 300 nm or less include KrF line (wavelength 248 nm) and ArF line (wavelength 193 nm), with KrF line (wavelength 248 nm) being preferred. Long-wave light sources with wavelengths of 300 nm or more can also be used.

[0217] In addition, during exposure, light may be continuously irradiated or may be irradiated in pulses (pulse exposure). Pulse exposure is an exposure method in which light irradiation and pauses are repeated in a short cycle (for example, millisecond level or less). In the case of pulse exposure, the pulse width is preferably 100 nanoseconds (ns) or less, more preferably 50 nanoseconds or less, and even more preferably 30 nanoseconds or less. There is no particular limit to the lower limit of the pulse width, but it can be 1 femtosecond (fs) or more, and can also be 10 femtoseconds or more. The frequency is preferably 1 kHz or more, more preferably 2 kHz or more, and even more preferably 4 kHz or more. The upper limit of the frequency is preferably 50 kHz or less, more preferably 20 kHz or less, and even more preferably 10 kHz or less. The maximum instantaneous illuminance is 50,000,000 W / m 2 It is preferable that the power consumption is 100,000,000 W / m or more. 2 More preferably, it is 200,000,000 W / m or more. 2 It is more preferable that the upper limit of the maximum instantaneous illuminance is 1000000000 W / m 2 Preferably, it is less than 800,000,000 W / m 2 More preferably, it is 500,000,000 W / m or less.2 It is more preferable that the pulse width is equal to or less than 1000 s. The pulse width refers to the time during which light is irradiated in a pulse period. The frequency refers to the number of pulse periods per second. The maximum instantaneous irradiance refers to the average irradiance during the time during which light is irradiated in a pulse period. The pulse period refers to a period in which light irradiation and pause in pulse exposure constitute one cycle.

[0218] The irradiation amount (exposure amount) is, for example, 0.03 to 2.5 J / cm 2 is preferable, and 0.05 to 1.0 J / cm 2 is more preferable. The oxygen concentration during exposure can be appropriately selected. In addition to exposure in air, exposure may be performed in a low-oxygen atmosphere with an oxygen concentration of 19 volume% or less (e.g., 15 volume%, 5 volume%, or substantially oxygen-free), or in a high-oxygen atmosphere with an oxygen concentration of more than 21 volume% (e.g., 22 volume%, 30 volume%, or 50 volume%). The exposure illuminance can be appropriately set, and is usually 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 may be appropriately combined. For example, the oxygen concentration is 10% by volume and the illuminance is 10,000 W / m 2 , oxygen concentration 35% by volume, illuminance 20000W / m 2 etc.

[0219] <<Developing process>> Next, the unexposed portion of the coloring composition layer is developed and removed to form a pattern (pixel). The unexposed portion of the coloring composition layer can be developed and removed using a developer. As a result, the coloring composition layer in the unexposed portion in the exposure step is dissolved into the developer, and only the photocured portion remains. The temperature of the developer is preferably, for example, 20 to 30°C. The development time is preferably 20 to 180 seconds. In addition, in order to improve the removability of residues, the process of shaking off the developer every 60 seconds and supplying new developer may be repeated several times.

[0220] Examples of the developer include organic solvents and alkaline developers, and alkaline developers are preferably used. As the alkaline developer, an alkaline aqueous solution (alkaline developer) obtained by diluting an alkaline agent with pure water is preferred. Examples of the alkaline agent include 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, and 1,8-diazabicyclo-[5.4.0]-7-undecene, and inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogencarbonate, sodium silicate, and sodium metasilicate. As the alkaline agent, compounds with a large molecular weight are preferred in terms of the environment and safety. The concentration of the alkaline agent in the alkaline aqueous solution is preferably 0.001 to 10% by mass, more preferably 0.01 to 1% by mass. The developer may further contain a surfactant. Examples of the surfactant include the surfactants described above, and nonionic surfactants are preferred. The developer may be produced as a concentrated solution from the viewpoint of convenience of transportation and storage, and then diluted to a required concentration when used. The dilution ratio is not particularly limited, but can be set in the range of, for example, 1.5 to 100 times. It is also preferred to wash (rinse) with pure water after development. It is also preferred to rinse by supplying a rinsing liquid to the colored composition layer after development while rotating the support on which the colored composition layer after development has been formed. It is also preferred to perform the rinsing by moving the nozzle for ejecting the rinsing liquid from the center of the support to the periphery of the support. In this case, the nozzle may be moved while gradually decreasing the moving speed when moving the nozzle from the center of the support to the periphery. By performing the rinsing in this manner, the in-plane variation of the rinsing can be suppressed. The same effect can also be obtained by gradually decreasing the rotation speed of the support while moving the nozzle from the center to the periphery of the support.

[0221] After development and drying, it is preferable to perform additional exposure treatment or heating treatment (post-baking). Additional exposure treatment and post-baking are curing treatments after development to complete curing. The heating temperature in post-baking is, for example, preferably 100 to 240°C, more preferably 200 to 240°C. Post-baking can be performed continuously or batchwise using a heating means such as a hot plate, a convection oven (hot air circulation dryer), or a high-frequency heater to achieve the above conditions for the developed film. When additional exposure treatment is performed, it is preferable that the light used for exposure has a wavelength of 400 nm or less. The additional exposure treatment may be performed by the method described in Korean Patent Publication No. 10-2017-0122130.

[0222] <Color filters> Next, the color filter of the present invention will be described. The color filter of the present invention has the above-mentioned film of the present invention. Preferably, the film of the present invention is used as a color pixel of the color filter. When the film of the present invention is used in a color filter, it is preferable to use a chromatic pigment as the pigment. The film thickness of the film of the present invention in the color filter of the present invention can be appropriately adjusted depending on the purpose. The film thickness is preferably 20 μm or less, more preferably 10 μm or less, and even more preferably 5 μm or less. The lower limit of the film thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more. The color filter of the present invention can be used in solid-state imaging devices such as CCDs (charge-coupled devices) and CMOSs ​​(complementary metal-oxide semiconductors), image display devices, and the like.

[0223] The color filter preferably has a pixel width of 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. The pixel has a Young's modulus of preferably 0.5 to 20 GPa, and more preferably 2.5 to 15 GPa.

[0224] It is preferable that the pixels have high flatness. Specifically, the surface roughness Ra of the pixels is preferably 100 nm or less, more preferably 40 nm or less, and even more preferably 15 nm or less. Although the lower limit is not specified, it is preferable that the surface roughness is, for example, 0.1 nm or more. The surface roughness can be measured, for example, using an AFM (atomic force microscope) Dimension3100 manufactured by Veeco. In addition, the contact angle of water on the pixels can be set to an appropriate preferred value, but is 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 desirable that the volume resistance value of the pixels is high. Specifically, the volume resistance value of the pixels is 10 9 It is preferable that the resistance is 10 Ω·cm or more. 11 It is more preferable that the resistivity is Ω·cm or more. There is no upper limit, but for example, 10 14 The volume resistance of the pixel can be measured, for example, by using an ultra-high resistance meter 5410 (manufactured by Advantest Corporation).

[0225] The color filter may have a protective layer on the surface of the film of the present invention. By providing a protective layer, various functions such as oxygen blocking, low reflection, hydrophilicity / hydrophobicity, and blocking of light of a specific wavelength (ultraviolet rays, near infrared rays, infrared rays, etc.) can be imparted. The thickness of the protective layer is preferably 0.01 to 10 μm, more preferably 0.1 to 5 μm. Methods for forming the protective layer include a method of forming the layer by applying a resin composition dissolved in a solvent, a chemical vapor deposition method, and a method of attaching a molded resin with an adhesive. The components constituting the protective layer include (meth)acrylic resin, ene-thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, polyimide resin, polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, styrene resin, polyol resin, polyvinylidene chloride resin, melamine resin, urethane resin, aramid resin, polyamide resin, alkyd resin, epoxy resin, modified silicone resin, fluorine resin, polycarbonate resin, polyacrylonitrile resin, cellulose resin, Si, C, W, Al2O3, Mo, SiO2, Si2N4, etc., and may contain two or more of these components. For example, in the case of a protective layer intended for oxygen blocking, the protective layer preferably contains a polyol resin, SiO2, and Si2N4. In addition, in the case of a protective layer intended for low reflection, the protective layer preferably contains a (meth)acrylic resin and a fluorine resin.

[0226] When the protective layer is formed by applying a resin composition, known methods such as spin coating, casting, screen printing, and inkjet can be used as the method for applying the resin composition. Known solvents (e.g., propylene glycol 1-monomethyl ether 2-acetate, cyclopentanone, ethyl lactate, etc.) can be used as the solvent contained in the resin composition. When the protective layer is formed by chemical vapor deposition, known chemical vapor deposition methods (thermal chemical vapor deposition, plasma chemical vapor deposition, photochemical vapor deposition) can be used as the chemical vapor deposition method.

[0227] The protective layer may contain additives such as organic or inorganic fine particles, absorbents of specific wavelengths (e.g., ultraviolet, near infrared, infrared, etc.), refractive index adjusters, antioxidants, adhesion agents, and surfactants, as necessary. Examples of organic or inorganic fine particles include polymer fine particles (e.g., silicone resin fine particles, polystyrene fine particles, melamine resin fine particles), titanium oxide, zinc oxide, zirconium oxide, indium oxide, aluminum oxide, titanium nitride, titanium oxynitride, magnesium fluoride, hollow silica, silica, calcium carbonate, and barium sulfate. Known absorbents can be used as absorbents of specific wavelengths. For example, conjugated diene compounds, aminodiene compounds, salicylate compounds, benzophenone compounds, benzotriazole compounds, acrylonitrile compounds, hydroxyphenyltriazine compounds, indole compounds, and triazine compounds can be used as ultraviolet absorbents. For details, refer to paragraphs 0052 to 0072 of JP 2012-208374 A, paragraphs 0317 to 0334 of JP 2013-068814 A, and paragraphs 0061 to 0080 of JP 2016-162946 A, the contents of which are incorporated herein by reference. Examples of infrared absorbing agents that can be used include cyclic tetrapyrrole dyes, oxocarbon dyes, cyanine dyes, quaterrylene dyes, naphthalocyanine dyes, nickel complex dyes, copper ion dyes, iminium dyes, subphthalonine dyes, xanthene dyes, azo dyes, dipyrromethene dyes, and pyrrolopyrrole dyes. For details, refer to paragraphs 0020 to 0072 of JP 2018-054760 A, JP 2009-263614 A, and WO 2017 / 146092, the contents of which are incorporated herein by reference. The content of these additives can be appropriately adjusted, but is preferably 0.1 to 70% by mass, more preferably 1 to 60% by mass, based on the total weight of the protective layer.

[0228] In addition, as the protective layer, the protective layers described in paragraphs 0073 to 0092 of JP2017-151176A can also be used.

[0229] The color filter may have a structure in which each color pixel is embedded in a space partitioned by partition walls, for example in a lattice shape.

[0230] The color filter may have an underlayer. The underlayer may be formed using, for example, a composition obtained by removing the colorant from the above-mentioned coloring composition of the present invention.

[0231] <Solid-state imaging element> The solid-state imaging device of the present invention has the above-mentioned film of the present invention. The configuration 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 configurations.

[0232] The substrate has a plurality of photodiodes constituting a light receiving area of ​​a solid-state imaging device (such as a CCD (charge-coupled device) image sensor or a CMOS (complementary metal oxide semiconductor) image sensor) and a transfer electrode made of polysilicon or the like, a light-shielding film with only the light receiving portion of the photodiodes open on the photodiodes and the transfer electrodes, a device protection film made of silicon nitride or the like formed on the light-shielding film so as to cover the entire light-shielding film and the light receiving portion of the photodiode, and a color filter on the device protection film. Furthermore, the device protection film may have a light-collecting means (e.g., a microlens, etc.; the same applies below) on the device protection film and below the color filter (on the side closer to the substrate), or a light-collecting means on the color filter. The color filter may have a structure in which each colored pixel is embedded in a space partitioned by partitions, for example, in a lattice shape. In this case, the partitions preferably have a low refractive index with respect to each colored pixel. Examples of imaging devices having such a structure include those described in JP 2012-227478 A, JP 2014-179577 A, and WO 2018 / 043654 A. An imaging device including the solid-state imaging element of the present invention can be used for digital cameras, electronic devices having an imaging function (such as mobile phones), as well as vehicle-mounted cameras and surveillance cameras. EXAMPLES

[0233] The present invention will be described in more detail below with reference to examples. The materials, amounts, ratios, processing contents, processing procedures, etc. shown in the following examples can be appropriately changed without departing from the spirit of the present invention. Therefore, the scope of the present invention is not limited to the specific examples shown below.

[0234] <Preparation of green dispersion> (green dispersion) The G pigment (green pigment), Y pigment (yellow pigment), derivative, dispersant, and solvent shown in the table below were mixed, and then 400 parts by mass of zirconia beads with a diameter of 0.3 mm were added and dispersed for 5 hours using a paint shaker, and the beads were separated by filtration to produce a green dispersion. The values ​​shown in the table below are parts by mass.

[0235] [Table 2]

[0236] (Cyan dispersion) The pigment, derivative, dispersant, and solvent shown in the table below were mixed, and then 400 parts by mass of zirconia beads with a diameter of 0.3 mm were added and dispersed for 5 hours using a paint shaker, after which the beads were separated by filtration to produce a cyan dispersion. The values ​​shown in the table below are in parts by mass. [Table 3]

[0237] (red dispersion) The R pigment (red pigment), Y pigment (yellow pigment), derivative, dispersant, and solvent shown in the table below were mixed, and then 400 parts by mass of zirconia beads with a diameter of 0.3 mm were added and dispersed for 5 hours using a paint shaker, and the beads were separated by filtration to produce a red dispersion. The values ​​shown in the table below are parts by mass. [Table 4]

[0238] (Blue dispersion) The B pigment (blue pigment), V pigment (purple pigment), derivative, dispersant, and solvent shown in the table below were mixed, and then 400 parts by mass of zirconia beads with a diameter of 0.3 mm were added and dispersed for 5 hours using a paint shaker, and the beads were separated by filtration to produce a blue dispersion. The values ​​shown in the table below are parts by mass. [Table 5]

[0239] Details of the materials indicated by the abbreviations in the above table are as follows:

[0240] [G Pigment] PG-7: CI Pigment Green 7 PG-36: CI Pigment Green 36 PG-58: CI Pigment Green 58 PG-62: CI Pigment Green 62 PG-63: CI Pigment Green 63 SQ-1: Compound having the following structure [ka]

[0241] [Y pigment] PY-139: CI Pigment Yellow 139 PY-150: CI Pigment Yellow 150 PY-185: CI Pigment Yellow 185

[0242] [R pigment] PR-254: CI Pigment Red 254

[0243] [Pigment B] PB15:6 : CI Pigment Blue 15:6 PB16: CI Pigment Blue 16

[0244] [V Pigment] PV23: CI Pigment Violet 23

[0245] [Derivative] T-4, T-7, T-14, T-23, T-25, T-31, T-33, T-42, T-44, T-45, T-46, T-48, T-49, T-50, T-52, T-54, T-55, T-62, T-66, T-71, T74, T-76: Compounds having the structure described in the specific examples of the triazine compound (TA) above. Derivative-1: A compound having the following structure [ka] Derivative-2: A compound having the following structure [ka] The maximum molar absorption coefficient (εmax) in the wavelength range of 400 to 700 nm of each compound used as a derivative is as follows: εmax of each compound was measured as follows. 20 mg of each compound was dissolved in 200 mL of methanol, and methanol was added to 2 mL of this solution to make 50 mL. The absorbance of this solution was measured in the wavelength range of 200 to 800 nm using a Cary5000 UV-Vis-NIR spectrophotometer (Agilent Technologies), and εmax was calculated. The evaluation results are shown in the table below. A: The maximum molar absorption coefficient (εmax) in the wavelength range of 400 to 700 nm is 100 L mol -1 ·cm -1 The following is the result. B: The maximum molar absorption coefficient (εmax) in the wavelength range of 400 to 700 nm is 100 L mol -1 ·cm -1 Greater than 1000 L mol -1 ·cm -1 The following is the result. C: The maximum molar extinction coefficient (εmax) in the wavelength range of 400 to 700 nm is 1000 L mol -1 ·cm -1 Larger than 3000 L mol -1 ·cm -1 Is less than or equal to D: The maximum molar extinction coefficient (εmax) in the wavelength range of 400 to 700 nm is 3000 L mol -1 ·cm -1 Exceeds. [Table 6]

[0246] [Dispersant] P-1: 30% by mass propylene glycol monomethyl ether acetate (PGMEA) solution of the resin with the following structure. The number attached to the main chain is the molar ratio, and the number attached to the side chain is the number of repeating units. Mw=7000. [ka]

[0247] P-2: 30% by mass PGMEA solution of resin synthesized by the following method 50 parts by mass of methyl methacrylate, 50 parts by mass of n-butyl methacrylate, and 45.4 parts by mass of PGMEA (propylene glycol monomethyl ether acetate) were charged into a reaction vessel, and the atmospheric gas was replaced with nitrogen gas. The inside of the reaction vessel was heated to 70°C, 6 parts by mass of 3-mercapto-1,2-propanediol were added, and 0.12 parts by mass of AIBN (azobisisobutyronitrile) were further added, and the reaction was carried out for 12 hours. It was confirmed that 95% had reacted by measuring the solid content. Next, 9.7 parts by mass of pyromellitic anhydride, 70.3 parts by mass of PGMEA, and 0.20 parts by mass of DBU (1,8-diazabicyclo-[5.4.0]-7-undecene) as a catalyst were added, and the reaction was carried out at 120°C for 7 hours. It was confirmed that 98% or more of the acid anhydride had been half-esterified by measuring the acid value, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 30 mass %, and a 30 mass % PGMEA solution of resin P-2 having an acid value of 43 mgKOH / g and a weight average molecular weight (Mw) of 9,000 was obtained. [ka]

[0248] P-3: 30% by mass PGMEA solution of resin synthesized by the following method 50 parts by mass of methyl methacrylate, 30 parts by mass of n-butyl methacrylate, 20 parts by mass of t-butyl methacrylate, and 45.4 parts by mass of PGMEA were charged into a reaction vessel, and the atmospheric gas was replaced with nitrogen gas. The inside of the reaction vessel was heated to 70°C, 6 parts by mass of 3-mercapto-1,2-propanediol was added, and 0.12 parts by mass of AIBN (azobisisobutyronitrile) was further added, and the reaction was carried out for 12 hours. It was confirmed that 95% had reacted by measuring the solid content. Next, 9.7 parts by mass of pyromellitic anhydride, 70.3 parts by mass of PGMEA, and 0.20 parts by mass of DBU (1,8-diazabicyclo-[5.4.0]-7-undecene) as a catalyst were added, and the reaction was carried out for 7 hours at 120°C. It was confirmed that 98% or more of the acid anhydride had been half-esterified by measuring the acid value, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 30 mass %, and a 30 mass % PGMEA solution of resin P-3 having an acid value of 43 mgKOH / g and a weight average molecular weight (Mw) of 9,000 was obtained. [ka]

[0249] P-4: 30% by mass PGMEA solution of resin synthesized by the following method Resin P-3 was synthesized in the same manner, except that 20 parts by mass of t-butyl methacrylate was changed to (3-ethyloxetan-3-yl)methyl methacrylate, to obtain a 30% by mass solution of Resin P-4 having an acid value of 43 mgKOH / g and a weight average molecular weight (Mw) of 9,000 in PGMEA. [ka]

[0250] P-5: 30% by mass PGMEA solution of resin synthesized by the following method In the synthesis of resin P-3, 20 parts by mass of t-butyl methacrylate was replaced with Showa Denko's "Karenz MOI-BM" in the same manner as above, to obtain a 30 mass% PGMEA solution of resin P-5 having an acid value of 43 mgKOH / g and a weight average molecular weight (Mw) of 9000. [ka]

[0251] P-6: 30% by mass PGMEA solution of resin synthesized by the following method 6.0 parts by mass of 3-mercapto-1,2-propanediol, 9.5 parts by mass of pyromellitic anhydride, 62 parts by mass of PGMEA, and 0.2 parts by mass of 1,8-diazabicyclo-[5.4.0]-7-undecene were charged into a reaction vessel, and the atmospheric gas was replaced with nitrogen gas. The inside of the reaction vessel was heated to 100°C, and the reaction was carried out for 7 hours. After confirming that 98% or more of the acid anhydride was half-esterified by measuring the acid value, the temperature in the system was cooled to 70°C, and 53.5 parts by mass of PGMEA solution in which 65 parts by mass of methyl methacrylate, 5.0 parts by mass of ethyl acrylate, 15 parts by mass of t-butyl acrylate, 5.0 parts by mass of methacrylic acid, 10 parts by mass of hydroxyethyl methacrylate, and 0.1 parts by mass of 2,2'-azobisisobutyronitrile were dissolved was added, and the reaction was carried out for 10 hours. It was confirmed that the polymerization had progressed to 95% by measuring the solid content, and the reaction was terminated. PGMEA was added to adjust the non-volatile content (solid content concentration) to 30 mass %, and a 30 mass % PGMEA solution of resin P-6 having an acid value of 70.5 mgKOH / g and a weight average molecular weight (Mw) of 10,000 was obtained. [ka]

[0252] P-7: 30% by mass PGMEA solution of resin synthesized by the following method 108 parts by mass of 1-thioglycerol, 174 parts by mass of pyromellitic anhydride, 650 parts by mass of methoxypropyl acetate, and 0.2 parts by mass of monobutyltin oxide as a catalyst were charged into a reaction vessel, and the atmospheric gas was replaced with nitrogen gas, and then the reaction was carried out at 120 ° C. for 5 hours (first step). It was confirmed that 95% or more of the acid anhydride was half-esterified by measuring the acid value. Next, 160 parts by mass of the compound obtained in the first step in terms of solid content, 200 parts by mass of 2-hydroxypropyl methacrylate, 200 parts by mass of ethyl acrylate, 150 parts by mass of t-butyl acrylate, 200 parts by mass of 2-methoxyethyl acrylate, 200 parts by mass of methyl acrylate, 50 parts by mass of methacrylic acid, and 663 parts by mass of PGMEA were charged into a reaction vessel, and the inside of the reaction vessel was heated to 80 ° C., and 1.2 parts by mass of 2,2'-azobis (2,4-dimethylvaleronitrile) was added, and the reaction was carried out for 12 hours (second step). It was confirmed by solid content measurement that 95% had reacted. Finally, 500 parts by mass of a 50% by mass solution of the compound obtained in the second step in PGMEA, 27.0 parts by mass of 2-methacryloyloxyethyl isocyanate (MOI), and 0.1 parts by mass of hydroquinone were charged into a reaction vessel, and the 2270 cm -1 The reaction was continued until the disappearance of the peak was confirmed (third step). After the disappearance of the peak was confirmed, the reaction solution was cooled, and PGMEA was added to adjust the non-volatile content (solid content concentration) to 30 mass%, to obtain a 30 mass% PGMEA solution of resin P-7 having an acid value of 68 mgKOH / g, an unsaturated double bond value of 0.62 mmol / g, and a weight average molecular weight (Mw) of 13,000. [ka] P-8: 30% by mass solution of the resin with the following structure in propylene glycol monomethyl ether acetate (PGMEA). The number attached to the main chain is the molar ratio, and the number attached to the side chain is the number of repeating units. Mw=20,000. P-9: 30% by mass PGMEA solution of the resin with the following structure. The number attached to the main chain is the molar ratio, and the number attached to the side chain is the number of repeating units. Mw=18000. P-10: 30% by mass PGMEA solution of the resin with the following structure. The number attached to the main chain is the molar ratio, and the number attached to the side chain is the number of repeating units. Mw=22000.

[0253] [ka] P-11: 30% by mass PGMEA solution of the resin having the following structure. K / l / m / n=25 / 41 / 4 / 30 (molar ratio), p=60, q=60. Mw=22900. [ka] P-12: 30% by weight PGMEA solution of the resin with the following structure. The number added to the side chain is the number of repeating units. Mw=18000 [ka] P-13: 30% by weight PGMEA solution of the resin with the following structure. The number added to the side chain is the number of repeating units. Mw=18000 [ka] P-14: 30% by weight PGMEA solution of the resin with the following structure. The number added to the side chain is the number of repeating units. Mw=18000 [ka]

[0254] 〔solvent〕 S-1: Propylene glycol monomethyl ether acetate (PGMEA)

[0255] <Preparation of Coloring Composition> The raw materials having the compositions shown in the table were mixed to prepare colored compositions. [Table 7] [Table 8] [Table 9] [Table 10] [Table 11] [Table 12]

[0256] Details of the materials indicated by the abbreviations in the above table are as follows:

[0257] (dispersion) Green dispersion-1 to green dispersion-49, green dispersion-r1, green dispersion-r2, cyan dispersion-1, red dispersion-1, red dispersion-2, blue dispersion-1, blue dispersion-2, blue dispersion-3: the above-mentioned dispersions

[0258] (resin) D-1: Resin with the following structure. The numbers attached to the main chain are molar ratios. Mw=11,000. D-2: Resin with the following structure. The numbers attached to the main chain are molar ratios. Mw=14,000. [ka]

[0259] (polymerizable compound) E-1: KAYARAD DPHA (manufactured by Nippon Kayaku Co., Ltd.) E-2: Aronix M-305 (manufactured by Toagosei Co., Ltd.) E-3: NK Ester A-TMMT (Shin-Nakamura Chemical Co., Ltd.) E-4: KAYARAD RP-1040 (manufactured by Nippon Kayaku Co., Ltd.) E-5: Aronix TO-2349 (manufactured by Toagosei Co., Ltd.)

[0260] (Photopolymerization initiator) F-1: Compound having the following structure (oxime-based photopolymerization initiator) F-2: Compound having the following structure (oxime-based photopolymerization initiator) F-3: Compound having the following structure (oxime-based photopolymerization initiator) F-4: Compound having the following structure (alkylphenone-based photopolymerization initiator) F-5: Compound having the following structure (oxime-based photopolymerization initiator) [ka]

[0261] (Surfactant) W-1: 1 mass % PGMEA solution of the following mixture (Mw=14000): In the following formula, % indicating the proportion of repeating units is mol %. [ka]

[0262] (Polymerization inhibitor) G-1: p-Methoxyphenol

[0263] 〔solvent〕 S-1: Propylene glycol monomethyl ether acetate (PGMEA) S-2: Cyclohexanone

[0264] (dye) Dye 1: A dye having the following structure. It was synthesized in the same manner as Synthesis Example C-48 in paragraph 0468 of JP2016-102191A. In the following structural formula, i-Pr represents an isopropyl group. [ka] Dye 2: A dye having the following structure. It was synthesized in the same manner as in the paragraphs of JP2014-237809A. In the following structural formula, Et represents an ethyl group. [ka] Dye 3: A dye having the following structure. It was synthesized in the same manner as described in paragraph 0419 of JP2014-237809A. In the following structural formula, Et represents an ethyl group. [ka]

[0265] (Additives) Additive 1: Potassium bis(trifluoromethanesulfonyl)imide

[0266] <Storage stability evaluation> The viscosity of the colored composition obtained above was measured using "RE-85L" manufactured by Toki Sangyo Co., Ltd., and the colored composition was left to stand at 45°C for 3 days, and the viscosity was measured again. The storage stability was evaluated according to the following evaluation criteria from the viscosity difference (ΔVis) before and after standing. The smaller the viscosity difference (ΔVis) value, the better the storage stability. The viscosity of the colored composition was measured at a temperature adjusted to 25°C. The evaluation criteria were as follows, and the evaluation results are shown in the table below. [Evaluation Criteria] A: ΔVis is 0.5 mPa s or less B: ΔVis is greater than 0.5 mPa s and less than or equal to 2.0 mPa s C: ΔVis is greater than 2.0 mPa s

[0267] <Adhesion evaluation> Each coloring composition was applied onto an 8-inch (20.32 cm) silicon wafer by spin coating so that the film thickness after post-baking would be 0.5 μm. Then, the wafer was pre-baked at 100° C. for 2 minutes using a hot plate. Next, the wafer was exposed to 200 mJ / cm 2 of light using an i-line stepper exposure device FPA-3000i5+ (Canon Inc.) through a mask having a Bayer pattern that forms a predetermined pixel (pattern) size. 2 The mask used had a Bayer pattern with pixel patterns of 0.7 μm square, 0.8 μm square, 0.9 μm square, 1.0 μm square, 1.1 μm square, 1.2 μm square, 1.3 μm square, 1.4 μm square, 1.5 μm square, 1.7 μm square, 2.0 μm square, 3.0 μm square, 5.0 μm square, and 10.0 μm square. Next, paddle development was performed at 23° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH). After that, rinsing was performed by a spin shower using pure water. Next, a pattern (pixel) was formed by heating (post-baking) at 200° C. for 5 minutes using a hot plate. Using a high-resolution FEB length measuring device (HITACHI CD-SEM) S9380II (manufactured by Hitachi High-Technologies Corporation), patterns of 0.7 μm square, 0.8 μm square, 0.9 μm square, 1.0 μm square, 1.1 μm square, 1.2 μm square, 1.3 μm square, 1.4 μm square, 1.5 μm square, 1.7 μm square, 2.0 μm square, 3.0 μm square, 5.0 μm square and 10.0 μm square were observed, and the smallest pattern size at which a pattern was formed without peeling was taken as the minimum contact line width. The smaller the minimum contact line width, the better the adhesion. [Evaluation Criteria] A: The minimum contact line width is 1.2 μm square or less. B: The minimum contact line width is greater than 1.2 μm square and less than or equal to 1.3 μm square. C: The minimum contact line width is greater than 1.3 μm square and less than or equal to 1.4 μm square. D: The minimum contact line width is greater than 1.4 μm square and less than or equal to 1.6 μm square. E: The minimum contact line width is greater than 1.6 μm square.

[0268] <Color unevenness evaluation> Each coloring composition was applied to a 5 cm x 5 cm glass substrate using a spin coater so that the film thickness after pre-baking was 0.6 μm, and the substrate was pre-baked at 100° C. for 120 seconds to obtain a color filter for evaluating color unevenness. The luminance distribution of the obtained color filter was analyzed by the following method, and color unevenness was evaluated based on the number of pixels with a deviation of ±8% or more from the average. The method for measuring the luminance distribution will be described. The color filter for evaluating color unevenness was placed between the observation lens and the light source of an optical microscope, and light was irradiated toward the observation lens, and the transmitted light state was observed using an optical microscope MX-50 (manufactured by Olympus Corporation) equipped with a digital camera. Photographing of the color filter surface was performed on five arbitrarily selected areas. The luminance of the photographed image (total number of pixels: 636416) was quantified as a density distribution of 256 gradations from 0 to 255 and saved. The luminance distribution was analyzed from this image, and color unevenness was evaluated based on the number of pixels (roughness value) with a deviation of more than ±8% from the average. The evaluation criteria are as follows: A: Zara value is 3000 or less B: Zara value is over 3000 and below 6000 C: Zara value is 6000 or more

[0269] (Heat resistance evaluation) Each coloring composition was applied by spin coating onto a 5 cm×5 cm glass substrate so that the film thickness after post-baking would be 0.5 μm, and then pre-baked at 100° C. for 2 minutes using a hot plate. Next, an i-line stepper exposure system FPA-3000i5+ (Canon) was used to expose the sample to light with a wavelength of 365 nm at 500 mJ / cm. 2 The film was prepared by exposure to an exposure dose of 1000 ppm. Next, the glass substrate was placed on the horizontal rotating table of a spin-shower developer (DW-30 type, manufactured by Chemitronics Corporation) and paddle-developed for 60 seconds at 23°C using a CD-2000 (manufactured by Fujifilm Electronic Materials Co., Ltd.). While rotating the glass substrate at a rotation speed of 50 rpm using a rotating device, pure water was supplied in a shower-like manner from a nozzle above the center of rotation to rinse the substrate, and then the substrate was spray-dried to produce a film. Next, the glass substrate on which the film was formed was placed on a hot plate at 230°C and heated for 1 hour. The color difference (ΔE*ab value) of the film before and after heating was measured using a colorimeter MCPD-3000 (manufactured by Otsuka Electronics Co., Ltd.) to evaluate heat resistance. A smaller ΔE*ab value indicates better heat resistance. Evaluation was based on the following criteria. A: ΔE*ab value is 0 or more and less than 1.0 B: ΔE*ab value is 1.0 or more and less than 1.5 C: ΔE*ab value is 1.5 or more

[0270] [Table 13]

[0271] [Table 14]

[0272] [Table 15]

[0273] [Table 16]

[0274] [Table 17]

[0275] As shown in the above table, the examples were evaluated as excellent in terms of storage stability and adhesion.

[0276] The same results were obtained when 0.2 parts by mass of 7,7,8,8-tetracyanoquinodimethane was added to the colored composition of Example 11.

[0277] In the coloring compositions of Examples 203, 204, and 205, even if Additive 1 was changed to the same amount of lithium bis(trifluoromethanesulfonyl)imide, potassium N,N-bis(nonafluorobutanesulfonyl)imide, cesium tris(trifluoromethanesulfonyl)methide, or lithium tetrakis(pentafluorophenyl)borate, the same results as those of these Examples were obtained.

[0278] (Example 301) The Green composition was applied onto a silicon wafer by spin coating so that the film thickness after post-baking would be 1.0 μm. Then, the wafer was heated at 100° C. for 2 minutes using a hot plate. Next, an i-line stepper exposure system FPA-3000i5+ (Canon Inc.) was used to irradiate the wafer with 365 nm wavelength light at 1000 mJ / cm. 2 The green composition was patterned by heating (post-baking) at 200°C for 5 minutes using a hot plate. Similarly, the red composition and the blue composition were patterned in sequence to form red, green, and blue colored patterns (Bayer patterns). Next, paddle development was performed using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH) at 23°C for 60 seconds. After that, rinsing was performed using a spin shower and further washing with pure water. Next, the green composition was patterned by heating (post-baking) at 200°C for 5 minutes using a hot plate. Similarly, the red composition and the blue composition were patterned in sequence to form red, green, and blue colored patterns (Bayer patterns). The colored composition of Example 11 was used as the Green composition. The colored composition of Example 101 was used as the Red composition. The colored composition of Example 201 was used as the Blue composition. The Bayer pattern is a repeated 2 x 2 array of color filter elements, each having one red element, two green elements, and one blue element, as disclosed in U.S. Pat. No. 3,971,065. The obtained color filter was incorporated into a solid-state imaging device according to a known method, and the solid-state imaging device had a satisfactory image recognition ability.

Claims

1. A coloring composition for a solid-state imaging device, comprising a pigment, a compound having a triazine ring, a polymerizable compound, and a photopolymerization initiator, The pigment is contained in the total solid content of the coloring composition in an amount of 50 mass% or more, The compound having a triazine ring is a compound represented by formula (1) and has a maximum molar absorption coefficient of 3000 L mol in the wavelength range of 400 to 700 nm. －１ ・cm －１ Below is the Colored composition. A １ -B １ -C １ ・・・(1) (In formula (1), A １ represents a group represented by formula (A1); B １ represents a group represented by formula (L1), C １ represents a group represented by formula (C3). 【Chemistry 1】 (In formula (A1), the wavy line represents a bond, and La １ and La ２ Each independently represents -N(R Ｌａ１ )-, R Ｌａ１ represents a hydrogen atom, Ra １ and Ra ２ each independently represents an aryl group or heterocyclic group having 6 to 12 carbon atoms, and the heterocyclic group is a monocyclic or condensed ring heterocyclic group having 2 to 4 condensed rings. -L １Ａ -L １Ｂ -L １Ｃ -・・・(L1) (In formula (L1), L １Ａ and L １Ｃ Each independently represents -N(R ＬＢ１ )-, R ＬＢ１ represents a hydrogen atom, L １Ｂ represents a divalent linking group, and the divalent linking group is an arylene group or a group in which arylene groups are bonded to each other via -NHCO- or -CONH-.) 【Chemistry 2】 (In formula (C3), the wavy line represents a linker. Lc ２１ and Lc ２２ each independently represents an alkylene group having 1 to 5 carbon atoms, Rc ２１ and Rc ２２ represents a hydrogen atom, Rc ２３ ~Rc ２６ each independently represents an alkyl group having 1 to 3 carbon atoms.

2. The coloring composition of claim 1 , wherein the pigment is an organic pigment.

3. 3. The coloring composition according to claim 1, wherein the pigment is a chromatic pigment.

4. The coloring composition according to any one of claims 1 to 3, wherein the pigment comprises a phthalocyanine pigment.

5. The coloring composition according to any one of claims 1 to 4, wherein the pigment comprises a green pigment.

6. The colored composition according to any one of claims 1 to 5, wherein the photopolymerization initiator comprises an oxime compound.

7. The coloring composition according to any one of claims 1 to 6, which contains an alkali-soluble resin.

8. The coloring composition according to any one of claims 1 to 7, comprising a resin having an aromatic carboxyl group.

9. A film obtained from the colored composition according to any one of claims 1 to 8.

10. A color filter comprising the film according to claim 9.

11. A solid-state imaging device comprising the film according to claim 9 .

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