Composition, film, optical filter, solid-state imaging element, and image display device

Abstract

Provided is a composition comprising: a pigment A; a compound B which has an acid group and at least one structure selected from among dye structures, aromatic rings, and heteroaromatic rings and which has a molecular weight of 122 or higher but less than 2,000; a compound C which has two or more amino groups in the molecule and has a molecular weight of 60 or higher but less than 2,000; and a compound D which has at least one structure selected from among polyester structures and polyether structures and at least one group selected from among acid groups and basic groups and which has a weight-average molecular weight of 2,000-30,000. Also provided are a film, an optical filter, a solid-state imaging element, and an image display device which are obtained using the composition.

Description

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

[0001] The present invention relates to a composition containing a pigment. The present invention also relates to a film, an optical filter, a solid-state imaging device, and an image display device using the composition containing a pigment.

[0002] Color filters are manufactured using compositions containing coloring materials such as pigments.

[0003] Patent Document 1 describes an invention relating to a coloring composition for color filters that contains a diketopyrrolopyrrole pigment, a basic pigment derivative, and a resin-type dispersant.

[0004] Japanese Patent Application Laid-Open No. 2020-172563

[0005] In recent years, there has been a strong demand for smaller and thinner solid-state imaging devices. Therefore, in recent years, there has been a demand for thinner films containing color materials, such as color filters, used in solid-state imaging devices. To achieve thinner films while maintaining desired spectral performance, it is necessary to increase the color material concentration of the resin composition used to form the film.

[0006] However, when a colorant containing a pigment is used, increasing the colorant concentration in the composition relatively reduces the proportion of materials such as resins that can adsorb to the pigment, which makes the pigment more likely to aggregate during storage of the composition, and the viscosity of the composition tends to increase over time.

[0007] Therefore, an object of the present invention is to provide a composition having excellent storage stability, and a film, an optical filter, a solid-state imaging device, and an image display device.

[0008] The present inventors have conducted research and found that the above object can be achieved by using the composition described below, and have thus completed the present invention.

[0009] <1> A composition comprising: a pigment A; a compound B having a pigment structure, at least one structure selected from an aromatic ring and a heteroaromatic ring, and an acid group, and having a molecular weight of 122 or more but less than 2,000; a compound C having two or more amino groups per molecule and a molecular weight of 60 or more but less than 2,000; and a compound D having a weight-average molecular weight of 2,000 to 30,000, and having at least one structure selected from a polyester structure and a polyether structure, and at least one group selected from an acid group and a basic group. <2> The composition according to <1>, wherein the compound C is polyethyleneimine. <3> The composition according to <1>, wherein the compound C is a compound having a heteroaromatic ring. <4> The composition according to any one of <1> to <3>, wherein the amine value of the compound C is 800 mgKOH / g or more. <5> The composition according to any one of <1> to <4>, containing 10 to 150 parts by mass of the compound C relative to 100 parts by mass of the compound B. <6> The composition according to any one of <1> to <5>, containing 5 to 15 parts by mass of the compound B, 2 to 8 parts by mass of the compound C, and 30 to 50 parts by mass of the compound D relative to 100 parts by mass of the pigment A. <7> The composition according to any one of <1> to <6>, further containing a polymerizable compound and a photopolymerization initiator. <8> The composition according to <7>, in which the content of the pigment A in the total solid content of the composition is 50% by mass or more. <9> The composition according to any one of <1> to <8>, in which the pigment A contains at least one pigment selected from a diketopyrrolopyrrole pigment and a phthalocyanine pigment. <10> A film comprising the composition according to any one of <1> to <9>. <11> An optical filter having the film according to <10>. <12> A solid-state imaging device having the film according to <10>. <13> An image display device having the film according to <10>.

[0010] According to the present invention, a composition having excellent storage stability can be provided. The present invention also provides a film, an optical filter, a solid-state imaging device, and an image display device.

[0011] The present invention will be described in detail below. In this specification, the term "to" is used to mean that the numerical values ​​before and after the term are included as the lower and upper limits. In the description of groups (atomic groups) in this specification, a term without specifying whether it is substituted or unsubstituted encompasses both unsubstituted groups (atomic groups) and substituted groups (atomic groups). For example, the term "alkyl group" encompasses not only unsubstituted alkyl groups (unsubstituted alkyl groups) but also substituted alkyl groups (substituted alkyl groups). 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 typified by excimer lasers, extreme ultraviolet light (EUV light), X-rays, electron beams, and other actinic rays or radiation. As used herein, "(meth)acrylate" refers to either or both of acrylate and methacrylate, "(meth)acrylic" refers to either or both of acrylic and methacrylic, and "(meth)acryloyl" refers to either or both of acryloyl and methacryloyl. In the structural formulae herein, Me refers to a methyl group, Et refers to an ethyl group, Bu refers to a butyl group, and Ph refers to a phenyl group. As used herein, the weight-average molecular weight and number-average molecular weight are polystyrene-equivalent values ​​measured by GPC (gel permeation chromatography). As used herein, the term "total solids" refers to the total mass of all components of a composition excluding the solvent. As used herein, the term "pigment" refers to a coloring material that is difficult to dissolve in a solvent. As used herein, 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.

[0012] <Composition> The composition of the present invention is characterized by comprising: pigment A; compound B having an acid group and at least one structure selected from a pigment structure, an aromatic ring, and a heteroaromatic ring, and having a molecular weight of 122 or more and less than 2000; compound C having two or more amino groups in one molecule and having a molecular weight of 60 or more and less than 2000; and compound D having a weight average molecular weight of 2000 to 30000, and having at least one structure selected from a polyester structure and a polyether structure, and at least one group selected from an acid group and a basic group.

[0013] The composition of the present invention exhibits good pigment dispersibility in the composition, can suppress an increase in viscosity over time, and has excellent storage stability. The reason for this effect is presumed to be as follows: Pigment A and either Compound B or Compound C are adsorbed to the pigment surface due to an anchoring effect or the like, and Compounds B and C are adsorbed via acid-base interaction. Furthermore, it is presumed that when Compound D is a compound having an acid group, Compound D is adsorbed to Compound C via acid-base interaction, and when Compound D is a compound having a basic group, Compound D is adsorbed to Compound B via acid-base interaction. Therefore, it is presumed that a strong network structure is formed between Pigment A, Compound B, Compound C, and Compound D in the composition. Furthermore, because Compound D has a relatively large weight-average molecular weight, it is presumed that Compound D can suppress aggregation between pigments. Therefore, it is presumed that the dispersibility of the pigment in the composition can be increased, the increase in viscosity over time can be suppressed, and storage stability can be improved.

[0014] The composition of the present invention is preferably used as a composition for an optical filter. Examples of optical filters include color filters, infrared transmission filters, and infrared cut filters, and color filters are preferred. The composition of the present invention is also preferably used for solid-state imaging devices. More specifically, the composition is preferably used as a composition for an optical filter used in a solid-state imaging device, and more preferably as a composition for forming colored pixels of a color filter used in a solid-state imaging device.

[0015] The color filter may have colored pixels that transmit light of a specific wavelength, such as red, green, blue, magenta, cyan, or yellow pixels, and is preferably a green or red pixel.

[0016] The infrared cut filter preferably has a maximum absorption wavelength in the wavelength range of 700 to 1800 nm, more preferably in the wavelength range of 700 to 1300 nm, and even more preferably in the wavelength range of 700 to 1000 nm. The transmittance of the infrared cut filter over 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 ratio of the absorbance Amax at the infrared cut filter's maximum absorption wavelength to the absorbance A550 at a wavelength of 550 nm (absorbance Amax / absorbance A550) is preferably 20 to 500, more preferably 50 to 500, even more preferably 70 to 450, and particularly preferably 100 to 400. The infrared cut filter can be formed using a composition containing an infrared-absorbing pigment.

[0017] The infrared transmission filter is a filter that transmits at least a portion of infrared light. The infrared transmission filter is preferably a filter that blocks at least a portion of visible light and transmits at least a portion of infrared light. Examples of the infrared transmission filter include a filter that satisfies 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 infrared transmission filter is preferably a filter that satisfies any one of the following spectral characteristics (1) to (5): (1): A filter that has 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 1500 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 1500 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 1500 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 1500 nm. (5): 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 1050 nm, and a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more) in the wavelength range of 1200 to 1500 nm.

[0018] The composition of the present invention can also be used as a light-shielding film.

[0019] The solids concentration of the composition of the present invention is preferably 5 to 30% by mass. The lower limit is preferably 7.5% by mass or more, more preferably 10% by mass or more. The upper limit is preferably 25% by mass or less, more preferably 20% by mass or less, and even more preferably 15% by mass or less.

[0020] Each component used in the composition of the present invention will be described below.

[0021] <<Pigment A>> The composition of the present invention contains pigment A (hereinafter referred to as pigment). Examples of pigments include white pigments, black pigments, chromatic pigments, and infrared absorbing pigments. In the present invention, the white pigment includes not only pure white pigments but also light gray pigments close to white (for example, off-white, light gray, etc.).

[0022] The pigment is preferably a compound having neither acid groups nor basic groups, or a compound having the same number of acid groups and basic groups.

[0023] The pigment may be either an inorganic pigment or an organic pigment, but is preferably an organic pigment from the viewpoints of a wide range of color variations, ease of dispersion, safety, etc. Furthermore, the pigment preferably includes at least one selected from a chromatic pigment and an infrared absorbing pigment, and more preferably includes a chromatic pigment.

[0024] The pigment preferably contains at least one selected from a phthalocyanine pigment, a dioxazine pigment, a quinacridone pigment, an anthraquinone pigment, a perylene pigment, an azo pigment, an azomethine pigment, a diketopyrrolopyrrole pigment, a pyrrolopyrrole pigment, an isoindoline pigment, and a quinophthalone pigment, and more preferably contains at least one selected from a phthalocyanine pigment, a pyrrolopyrrole pigment, a diketopyrrolopyrrole pigment, an isoindoline pigment, a quinophthalone pigment, and an azo pigment. Because the effects of the present invention are more pronounced, it is even more preferable for the pigment to contain at least one selected from a diketopyrrolopyrrole pigment and a phthalocyanine pigment, and it is particularly preferable for the pigment to contain a phthalocyanine pigment.

[0025] 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. In this specification, the primary particle diameter of the pigment can be determined 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 determined, 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 mean value of the primary particle diameters of 400 primary particles of the pigment. Furthermore, primary particles of the pigment refer to independent particles that are not aggregated.

[0026] The crystallite size of the pigment is preferably 0.1 to 50 nm, more preferably 0.5 to 30 nm, and even more preferably 1 to 15 nm. The crystallite size can be determined from the half-width of the diffraction angle peak using an X-ray diffractometer and calculated using the Scherrer equation. The crystallite size of the organic pigment can be adjusted by known methods such as adjusting the production conditions or pulverizing the pigment after production.

[0027] The specific surface area of ​​the pigment is 1 to 300 m ２ / g. The lower limit is 10 m ２ / g or more, and ２ / g or more is more preferable. ２ / g or less, and ２ The value of the specific surface area can be determined according to the BET (Brunauer, Emmett and Teller) method in accordance with DIN 66131: Determination of the specific surface area of ​​solids by gas adsorption.

[0028] (Chromatic pigment) Examples of the chromatic pigment include a yellow pigment, an orange pigment, a red pigment, a green pigment, a purple pigment, and a blue pigment. The chromatic pigment preferably contains at least one selected from a green pigment and a red pigment, and more preferably contains a green pigment. Specific examples of the chromatic pigment include the following:

[0029] Examples of red pigments include diketopyrrolopyrrole pigments, anthraquinone pigments, azo pigments, naphthol pigments, azomethine pigments, xanthene pigments, quinacridone pigments, perylene pigments, and thioindigo pigments. Diketopyrrolopyrrole pigments, anthraquinone pigments, and azo pigments are preferred, and diketopyrrolopyrrole pigments are more preferred.

[0030] Specific examples of red pigments include C.I. (Color Index) Pigment Red 1, 2, 3, 4, 5, 6, 7, 9, 10, 14, 17, 22, 23, 31, 38, 41, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 49:2, 52:1, 52:2, 53:1, 57:1, 60:1, 63:1, 66, 67, 81:1, 81:2, 81:3, 83, 88, 90, 105, 112, 119, 122, 123, 144, 146, 1 49,150,155,166,168,169,170,171,172,175,176,177,178,179,184,185,187,188,190,200,202,206,207,208,209,210,216,220,224,226,242,246,254,255,264,269,270,272,279,291,294,295,296,297, etc. As the red pigment, the compound described in paragraph number 0034 of WO 2022 / 085485, and the brominated diketopyrrolopyrrole compound described in JP-A-2020-085947 can also be used.

[0031] As the red pigment, C.I. Pigment Red 122, 177, 224, 254, 255, 264, 269, and 272 are preferred, and C.I. Pigment Red 254, 264, and 272 are more preferred.

[0032] Examples of green pigments include phthalocyanine pigments and squarylium pigments, with phthalocyanine pigments being preferred.

[0033] Specific examples of green pigments include C.I. Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, 64, 65, and 66. Furthermore, as a 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 per molecule can also be used. Specific examples include the compounds described in WO 2015 / 118720. Furthermore, as a green pigment, the compounds described in paragraph 0029 of WO 2022 / 085485, the aluminum phthalocyanine compounds described in JP-A 2020-070426, and the diarylmethane compounds described in JP-A 2020-504758 can also be used.

[0034] As the green pigment, C.I. Pigment Green 7, 36, 58, 62, and 63 are preferred, and C.I. Pigment Green 36 and 58 are more preferred.

[0035] Examples of orange pigments include diketopyrrolopyrrole pigments and azo pigments, and diketopyrrolopyrrole pigments are preferred. Specific examples of orange pigments include C.I. Pigment Orange 2, 5, 13, 16, 17:1, 31, 34, 36, 38, 43, 46, 48, 49, 51, 52, 55, 59, 60, 61, 62, 64, 71, and 73.

[0036] Examples of yellow pigments include azo pigments, azomethine pigments, isoindoline pigments, pteridine pigments, quinophthalone pigments, and perylene pigments. The yellow pigment is preferably at least one selected from isoindoline pigments, quinophthalone pigments, and azo pigments. Specific examples of yellow pigments include C.I. Pigment Yellow 1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 42, 43, 53, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 83, 86, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 123, 125, 126, 127, 128, 129, 137, 138, 139, 147, 148, 150, 151, 152, 153, 154, 155, 156, 161, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 179, 180, 181, 182, 185, 187, 188, 193, 194, 199, 213, 214, 215, 228, 231, 232, 233, 234, 235, 236, etc.

[0037] As the yellow pigment, an azobarbituric acid nickel complex having the following structure can also be used.

[0038] As the yellow pigment, the compounds described in paragraphs 0031 to 0033 of WO 2022 / 085485 can be used.

[0039] Examples of the purple pigment include oxazine pigment, quinacridone pigment, perylene pigment, indigo pigment, etc., and oxazine pigment is preferable. Specific examples of the purple pigment include C.I. Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60, and 61.

[0040] Examples of blue pigments include phthalocyanine pigments and squarylium pigments, with phthalocyanine pigments being preferred. Specific examples of blue pigments include C.I. Pigment Blue 1, 2, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 22, 29, 60, 64, 66, 79, 80, 87, and 88. Aluminum phthalocyanine compounds having phosphorus atoms can also be used as blue pigments. Specific examples include the compounds described in paragraphs 0022 to 0030 of JP-A 2012-247591 and paragraph 0047 of JP-A 2011-157478.

[0041] Two or more types of chromatic pigments may be used in combination. When two or more types of chromatic pigments are used in combination, the combination of two or more chromatic pigments may form a black color. Examples of such combinations include the following embodiments (1) to (7). When the composition contains two or more types of chromatic pigments and exhibits a black color through the combination of two or more chromatic pigments, the composition of the present invention can be preferably used as a composition for forming an 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 violet pigment. (4) An embodiment containing a red pigment, a blue pigment, a yellow pigment, a violet 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 violet pigment.

[0042] (White Pigment) Examples of the white pigment include inorganic pigments such as 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, and zinc sulfide. The white pigment may be one described in paragraphs 0040 to 0043 of WO 2022 / 085485.

[0043] (Black Pigment) The black pigment is not particularly limited, and known black pigments can be used. The black pigment may be an inorganic black pigment or an organic black pigment. In this specification, the black pigment refers to a pigment that exhibits absorption over the entire wavelength range of 400 to 700 nm.

[0044] Examples of inorganic black pigments 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 the titanium black described in paragraph 0044 of WO 2022 / 085485 or the zirconium nitride powder described in JP 2023-048173 A.

[0045] Examples of organic black pigments include bisbenzofuranone pigments, azomethine pigments, perylene pigments, and azo pigments, with bisbenzofuranone pigments and perylene pigments being preferred. The organic black pigment may be a compound described in paragraph 0166 of International Publication No. 2022 / 065215. Furthermore, examples of organic black pigments include perylene black (such as Lumogen Black FK4280) described in paragraphs 0016 to 0020 of JP-A-2017-226821 and black azo pigments described in JP-A-2022-121935.

[0046] (Infrared absorbing pigment) The infrared absorbing pigment is preferably a compound having a maximum absorption wavelength longer than 700 nm. The infrared absorbing pigment is preferably a compound having a maximum absorption wavelength in the wavelength range of more than 700 nm to 1800 nm, more preferably a compound having a maximum absorption wavelength in the wavelength range of more than 700 nm to 1400 nm, even more preferably a compound having a maximum absorption wavelength in the wavelength range of more than 700 nm to 1200 nm, and particularly preferably a compound having a maximum absorption wavelength in the wavelength range of more than 700 nm to 1000 nm. In addition, the absorbance A of the infrared absorbing pigment at a wavelength of 500 nm is １ and absorbance A at the maximum absorption wavelength ２ Ratio A１ / A ２ is preferably 0.08 or less, more preferably 0.04 or less. The infrared absorbing pigment is preferably a pigment, more preferably an organic pigment.

[0047] Examples of infrared absorbing pigments include pyrrolopyrrole pigments, cyanine pigments, squarylium pigments, phthalocyanine pigments, naphthalocyanine pigments, quaterrylene pigments, merocyanine pigments, croconium pigments, oxonol pigments, iminium pigments, dithiol pigments, triarylmethane pigments, pyrromethene pigments, azomethine pigments, anthraquinone pigments, dibenzofuranone pigments, dithiolene metal complex pigments, metal oxides, metal borides, etc. Specific examples of these include the compounds described in paragraph 0114 of WO 2022 / 065215. Further, examples of infrared absorbing pigments include the compounds described in paragraph 0121 of WO 2022 / 065215, squarylium compounds described in JP 2020-075959 A, copper complexes described in Korean Patent Publication No. 10-2019-0135217, croconic acid compounds described in JP 2021-195515 A, near-infrared absorbing dyes described in JP 2022-022070 A, croconium compounds described in WO 2019 / 021767 A, and compounds described in JP 2019-127549 A. , compounds described in WO 2022 / 059619, compounds described in JP 2022-151682 A, squarylium compounds described in JP 2022-188858 A, compounds described in JP 2022-184710 A, compounds described in JP 2022-189736 A, squarylium compounds described in JP 2023-004570 A, squarylium compounds described in WO 2019 / 230660, compounds described in WO 2020 / 218615 can also be used.

[0048] The content of the pigment in the total solid content of the composition is preferably 50% by mass or more, more preferably 55% by mass or more, and even more preferably 60% by mass or more, and the upper limit is preferably 80% by mass or less, more preferably 77.5% by mass or less, and even more preferably 75% by mass or less.

[0049] <<Compound B (Specific Acidic Compound)>> The composition of the present invention includes compound B (hereinafter also referred to as specific acidic compound) that has at least one structure selected from a dye structure, an aromatic ring, and a heteroaromatic ring, and an acid group, and has a molecular weight of 122 or more and less than 2,000.

[0050] The lower limit of the molecular weight of the specific acidic compound is preferably 200 or more, more preferably 300 or more. The upper limit is preferably 1000 or less, more preferably 1500 or less. When the molecular weight of the specific acidic compound can be calculated from the structural formula, the molecular weight of the specific acidic compound is the value calculated from the structural formula.

[0051] Examples of the dye structure possessed by the specific acidic compound include a quinoline dye structure, a benzimidazolone dye structure, a benzisoindole dye structure, a benzothiazole dye structure, an iminium dye structure, a squarylium dye structure, a croconium dye structure, an oxonol dye structure, a pyrrolopyrrole dye structure, a diketopyrrolopyrrole dye structure, an azo dye structure, an azomethine dye structure, a phthalocyanine dye structure, a naphthalocyanine dye structure, an anthraquinone dye structure, a quinacridone dye structure, a dioxazine dye structure, a perinone dye structure, a perylene dye structure, a thiazineindigo dye structure, a thioindigo dye structure, an isoindoline dye structure, an isoindolinone dye structure, a quinophthalone dye structure, a dithiol dye structure, a triarylmethane dye structure, and a pyrromethene dye structure. A diketopyrrolopyrrole dye structure, a phthalocyanine dye structure, a quinophthalone dye structure, an isoindoline dye structure, or an azomethine dye structure is preferred, and a quinophthalone dye structure is more preferred.

[0052] Examples of the aromatic ring contained in the specific acidic compound include a benzene ring and a naphthalene ring. These rings may further have a substituent. The heteroaromatic ring contained in the specific acidic compound may be a monocyclic ring or a polycyclic ring. The heteroatom constituting the heteroaromatic ring preferably contains at least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom, and more preferably contains a nitrogen atom. The number of heteroatoms constituting the heteroaromatic ring is preferably 1 to 4, and more preferably 1 to 3. Specific examples of the heteroaromatic ring include a triazine ring and a naphthalene ring, and a triazine ring is preferred.

[0053] Examples of the acid group possessed by the specific acidic compound include a carboxy group, a sulfo group, a phosphate group, a boronic acid group, an imidic acid group, and salts thereof. Examples of the atom or atomic group constituting the salt include an alkali metal ion (Li ＋ , Na ＋ , K. ＋ etc.), alkaline earth metal ions (Ca ２＋ , Mg ２＋ Examples of the imide acid group include an ammonium ion, an imidazolium ion, a pyridinium ion, and a phosphonium ion. ２ NHSO ２ R Ｘ１ , -CONHSO ２ R Ｘ２ , -CONHCOR Ｘ３ or -SO ２ NHCOR Ｘ４ is preferred, and —SO ２ NHSO ２ R Ｘ１ , -CONHSO ２ R Ｘ２ , or -SO ２ NHCOR Ｘ４ is more preferred, and —SO ２ NHSO ２ R Ｘ１ or -CONHSO ２ R Ｘ２ is more preferred. Ｘ１ ~R Ｘ４ R each independently represents an alkyl group or an aryl group. Ｘ１~R Ｘ４ The alkyl group and aryl group represented by R may have a substituent. The substituent is preferably a halogen atom, more preferably a fluorine atom. Ｘ１ ~R Ｘ４ are each independently preferably an alkyl group containing a fluorine atom or an aryl group containing a fluorine atom, and more preferably an alkyl group containing a fluorine atom. The number of carbon atoms in the alkyl group containing a fluorine atom is preferably 1 to 10, more preferably 1 to 5, and even more preferably 1 to 3. The number of carbon atoms in the aryl group containing a fluorine atom is preferably 6 to 20, more preferably 6 to 12, and even more preferably 6.

[0054] The specific acidic compound is preferably a compound having at least one structure selected from a dye structure and a triazine ring, and an acid group.

[0055] The specific acidic compound may have a basic group, but the number of basic groups in one molecule is preferably smaller than the number of acid groups, and it is particularly preferred that the specific acidic compound does not have a basic group.

[0056] Specific examples of the specific acidic compound include compounds Syn-A1 to Syn-A5 described in the examples below, compounds described in paragraph 0124 of WO 2022 / 085485, benzimidazolone compounds described in JP 2018-168244 A or salts thereof, compounds having an isoindoline skeleton described in general formula (1) of Japanese Patent No. 6996282, compounds described in JP 2019-172968 A, and compounds described in Chinese Patent Publication No. 115124889.

[0057] The composition of the present invention preferably contains 1 to 30 parts by mass, more preferably 3 to 20 parts by mass, and even more preferably 3 to 11 parts by mass of the specific acidic compound per 100 parts by mass of the pigment. The content of the specific acidic compound in the total solid content of the composition is preferably 1 to 20% by mass. The upper limit is preferably 10% by mass or less, more preferably 8% by mass or less. The lower limit is preferably 2% by mass or more, more preferably 3% by mass or more. The composition of the present invention may contain only one type of specific acidic compound, or may contain two or more types. When two or more types of specific acidic compounds are contained, the total amount thereof preferably falls within the above range.

[0058] <<Compound C (Specific Amine Compound)>> The composition of the present invention contains a compound C (hereinafter also referred to as specific amine compound) that contains two or more amino groups in one molecule and has a molecular weight of 60 or more and less than 2,000.

[0059] The lower limit of the molecular weight of the specific amine compound is preferably 100 or more, more preferably 200 or more. The upper limit is preferably 1,200 or less, more preferably 600 or less. Regarding the molecular weight value of the specific amine compound, if the molecular weight can be calculated from the structural formula, the molecular weight of the specific amine compound is the value calculated from the structural formula. On the other hand, if the molecular weight of the specific amine compound cannot be calculated from the structural formula or calculation is difficult, the number average molecular weight value measured by the boiling point elevation method is used. If the molecular weight cannot be measured by the boiling point elevation method or measurement is difficult, the number average molecular weight value measured by the viscosity method is used. If the molecular weight cannot be measured by the viscosity method or measurement by the viscosity method is difficult, the number average molecular weight value measured in polystyrene equivalent terms by GPC (gel permeation chromatography) is used.

[0060] The amine value of the specific amine compound is preferably 800 mgKOH / g or more, more preferably 850 mgKOH / g or more, and even more preferably 900 mgKOH / g or more, and the upper limit is preferably 1500 mgKOH / g or less, more preferably 1400 mgKOH / g or less, and even more preferably 1300 mgKOH / g or less.

[0061] The number of amino groups contained in the specific amine compound is 2 or more, preferably 3 or more, and the upper limit can be 30 or less.

[0062] The amino group contained in the specific amine compound may be any of a primary amino group, a secondary amino group, and a tertiary amino group, but is preferably a compound containing a primary amino group, more preferably a compound containing a primary amino group and a secondary amino group or a tertiary amino group, and even more preferably a compound containing a primary amino group, a secondary amino group, and a tertiary amino group.

[0063] The amino group of the specific amine compound may be a cyclic amino group. The cyclic amino group may be an aliphatic cyclic amino group such as a piperidino group, or an aromatic cyclic amino group such as a pyridyl group. The cyclic amino group is preferably a cyclic amino group having a 5-membered or 6-membered ring structure, more preferably a cyclic amino group having a 6-membered ring structure, and even more preferably an aliphatic cyclic amino group having a 6-membered ring structure. The cyclic amino group preferably has a hindered amine structure, and particularly preferably a 6-membered hindered amine structure. The hindered amine structure preferably has substituents such as alkyl groups on two carbon atoms in the ring structure adjacent to the nitrogen atom of the cyclic amino group. Examples of cyclic amino groups having a hindered amine structure include a 1,2,2,6,6-pentamethylpiperidyl group, a 2,2,6,6-tetramethylpiperidyl group, a 1,2,6,6-trimethylpiperidyl group, a 2,6-dimethylpiperidyl group, a 1-methyl-2,6-di(t-butyl)piperidyl group, a 2,6-di(t-butyl)piperidyl group, a 1,2,2,5,5-pentamethylpyrrolidyl group, a 2,2,5,5-tetramethylpyrrolidyl group, etc. Among these, a 1,2,2,6,6-pentamethylpiperidyl group or a 2,2,6,6-tetramethylpiperidyl group is preferred, and a 1,2,2,6,6-pentamethylpiperidyl group is more preferred.

[0064] The specific amine compound may have an acid group, but the number of acid groups in one molecule is preferably smaller than the number of amino groups, and it is particularly preferred that the specific amine compound does not have an acid group.

[0065] The specific amine compound is preferably a polyalkyleneimine because it can further improve the storage stability of the composition. A polyalkyleneimine is a polymer obtained by ring-opening polymerization of an alkyleneimine. Specific examples of alkyleneimine include ethyleneimine, propyleneimine, 1,2-butyleneimine, and 2,3-butyleneimine, with ethyleneimine or propyleneimine being preferred, and ethyleneimine being more preferred. The polyalkyleneimine is preferably a polymer having a branched structure containing a primary amino group, a secondary amino group, and a tertiary amino group. The alkyleneimine preferably has 2 to 6 carbon atoms, more preferably 2 to 4, even more preferably 2 or 3, and particularly preferably 2.

[0066] The polyalkyleneimine is particularly preferably polyethyleneimine. The polyethyleneimine preferably contains primary amino groups in an amount of 10 mol% or more, more preferably 20 mol% or more, and even more preferably 30 mol% or more, based on the total amount of primary amino groups, secondary amino groups, and tertiary amino groups. Commercially available polyethyleneimine products include Epomin SP-003, SP-006, SP-012, and SP-018 (all manufactured by Nippon Shokubai Co., Ltd.).

[0067] It is also preferable that the specific amine compound is a compound having a heteroaromatic ring. According to this embodiment, excellent effects can be obtained by adsorption to the pigment surface. The heteroaromatic ring of the specific amine compound may be monocyclic or polycyclic. The heteroatom constituting the ring of the heteroaromatic ring preferably contains at least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom, and more preferably contains a nitrogen atom. The number of heteroatoms constituting the ring of the heteroaromatic ring is preferably 1 to 4, and more preferably 1 to 3. Specific examples of heteroaromatic rings include nitrogen-containing aromatic rings such as a pyridine ring.

[0068] The composition of the present invention preferably contains 1 to 10 parts by mass, more preferably 2 to 5 parts by mass, and even more preferably 3 to 4 parts by mass of the specific amine compound per 100 parts by mass of the pigment.

[0069] The composition of the present invention preferably contains 5 to 200 parts by mass, more preferably 10 to 150 parts by mass, and even more preferably 20 to 50 parts by mass of the specific amine compound per 100 parts by mass of the above-mentioned specific acidic compound.

[0070] The content of the specific amine compound in the total solid content of the composition is preferably 1 to 5% by mass, with the upper limit being preferably 5% by mass or less, and more preferably 3% by mass or less, and the lower limit being preferably 1% by mass or more, and more preferably 1.5% by mass or more.

[0071] The composition of the present invention may contain only one specific amine compound or two or more specific acidic compounds. When two or more specific acidic compounds are contained, the total amount thereof is preferably within the above range.

[0072] <<Compound D (Specific Polymer Compound)>> The composition of the present invention contains compound D (hereinafter also referred to as specific polymer compound) that has a weight average molecular weight of 2,000 to 30,000 and has at least one structure selected from a polyester structure and a polyether structure, and at least one group selected from an acid group and a basic group.

[0073] The weight average molecular weight of the specific polymer compound is preferably 2,000 to 10,000, more preferably 2,000 to 7,000, and even more preferably 2,000 to 4,000.

[0074] Examples of the acid group contained in the specific polymer compound include a carboxy group, a phosphate group, a sulfo group, and a phenolic hydroxy group, and the carboxy group is preferred. Examples of the basic group contained in the specific polymer compound include an amino group.

[0075] The specific polymer compound is preferably a compound having an acid group, because this can further improve storage stability and furthermore effectively suppress the generation of development residues.

[0076] When the specific polymer compound is a compound having an acid group, the acid value of the specific polymer compound is preferably 5 to 150 mgKOH / g. The upper limit is preferably 150 mgKOH / g or less, and more preferably 80 mgKOH / g or less. The lower limit is preferably 5 mgKOH / g or more, and more preferably 40 mgKOH / g or more.

[0077] When the specific polymer compound is a compound having a basic group, the basic group value of the specific polymer compound is preferably 10 to 80 mgKOH / g. The upper limit is preferably 80 mgKOH / g or less, and more preferably 60 mgKOH / g or less. The lower limit is preferably 10 mgKOH / g or more, and more preferably 30 mgKOH / g or more.

[0078] The specific polymer compound may have both an acid group and a basic group. In this case, the specific polymer compound preferably has an acid value of 5 to 150 mgKOH / g and a basic group value of 10 to 80 mgKOH / g, more preferably an acid value of 20 to 100 mgKOH / g and a basic group value of 20 to 70 mgKOH / g, and even more preferably an acid value of 40 to 80 mgKOH / g and a basic group value of 30 to 60 mgKOH / g.

[0079] The specific polymer compound has at least one structure selected from a polyester structure and a polyether structure. Examples of the polyester structure include structures represented by formula (G-1), formula (G-2), or formula (G-3). Examples of the polyether structure include structures represented by formula (G-4).

[0080] In the above formula, R Ｇ１ and R Ｇ２ each independently represents an alkylene group, and n1 to n4 each independently represent an integer of 2 or more.

[0081] R Ｇ１ and R Ｇ２ The alkylene group represented by R preferably has 1 to 20 carbon atoms, more preferably 1 to 16 carbon atoms, and even more preferably 1 to 10 carbon atoms. Ｇ１ and RＧ２ The alkylene group represented by is preferably linear or branched, more preferably linear.

[0082] n1 to n4 each independently represent an integer of 2 or greater, preferably an integer of 3 or greater, more preferably an integer of 5 or greater, and even more preferably an integer of 8 or greater. The upper limit is preferably 100 or less, more preferably 80 or less, and even more preferably 60 or less.

[0083] A preferred embodiment of compound D is a graft resin having a repeating unit having a graft chain containing at least one structure selected from a polyester structure and a polyether structure, and a repeating unit having an acid group or a basic group.

[0084] Examples of the repeating unit having a graft chain include a repeating unit represented by formula (d1-1).

[0085] In formula (d1-1), X ｄ１ represents a trivalent linking group, L ｄ１ represents a single bond or a divalent linking group; W ｄ１ represents a graft chain containing at least one structure selected from a polyester structure and a polyether structure.

[0086] X ｄ１ Examples of the trivalent linking group represented by the formula (I) include a poly(meth)acrylic linking group, a polyalkyleneimine linking group, a polyester linking group, a polyurethane linking group, a polyurea linking group, a polyamide linking group, a polyether linking group, and a polystyrene linking group. A poly(meth)acrylic linking group or a polyalkyleneimine linking group is preferred, and a poly(meth)acrylic linking group is more preferred.

[0087] L ｄ１ Examples of the divalent linking group represented by the formula (I) include an alkylene group (preferably an alkylene group having 1 to 12 carbon atoms), an arylene group (preferably an arylene group having 6 to 20 carbon atoms), a heterocyclic group, -NH-, -SO-, -SO ２Examples thereof include -, -CO-, -O-, -COO-, -OCO-, -S-, and groups combining two or more of these.

[0088] W ｄ１ The graft chain represented by formula (I) contains at least one structure selected from a polyester structure and a polyether structure. Examples of the polyester structure and the polyether structure include those described above.

[0089] The terminal structure of the graft chain is not particularly limited. It may be a hydrogen atom or a substituent. Examples of the substituent include a group represented by formula (W-1). -L ｗ１ -R ｗ１ ...(W-1) In the formula, L ｗ１ represents a single bond or a divalent linking group, R ｗ１ represents an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an aryloxy group, a heteroaryloxy group, an alkylthioether group, an arylthioether group, or a heteroarylthioether group.

[0090] L ｗ１ Examples of the divalent linking group represented by include an alkylene group (preferably an alkylene group having 1 to 12 carbon atoms), an arylene group (preferably an arylene group having 6 to 20 carbon atoms), -NH-, -SO-, -SO ２ Examples thereof include -, -CO-, -O-, -COO-, -OCO-, -S-, and groups combining two or more of these.

[0091] The weight-average molecular weight of the repeating unit having a graft chain is preferably 1,000 or more, more preferably 1,000 to 10,000, and even more preferably 1,000 to 7,500. In this specification, the weight-average molecular weight of the repeating unit having a graft chain is a value calculated from the weight-average molecular weight of the raw material monomers used in the polymerization of the repeating unit. For example, the repeating unit having a graft chain can be formed by polymerizing a macromonomer. Here, the macromonomer refers to a polymeric compound in which a polymerizable group is introduced at the end of the polymer. When the repeating unit having a graft chain is formed using a macromonomer, the weight-average molecular weight of the macromonomer corresponds to the weight-average molecular weight of the repeating unit having a graft chain.

[0092] The content of the repeating unit having the graft chain is preferably 1 to 90 mol% of all repeating units in the graft resin. The lower limit is preferably 5 mol% or more, more preferably 10 mol% or more. The upper limit is preferably 85 mol% or less, more preferably 80 mol% or less.

[0093] Examples of the repeating unit having an acid group or a basic group contained in the graft resin include a repeating unit represented by formula (d2-1).

[0094] In formula (d2-1), X ｄ２ represents a trivalent linking group, L ｄ２ represents a single bond or an (n+1)-valent linking group; W ｄ２ represents an acid group or a basic group, and n represents an integer of 1 to 4.

[0095] X ｄ２ Examples of the trivalent linking group represented by the formula (I) include a poly(meth)acrylic linking group, a polyalkyleneimine linking group, a polyester linking group, a polyurethane linking group, a polyurea linking group, a polyamide linking group, a polyether linking group, and a polystyrene linking group. A poly(meth)acrylic linking group or a polyalkyleneimine linking group is preferred, and a poly(meth)acrylic linking group is more preferred.

[0096] L ｄ２ Examples of the n+1-valent linking group represented by the formula (I) include an aliphatic hydrocarbon group (preferably an aliphatic hydrocarbon group having 1 to 12 carbon atoms), an aromatic hydrocarbon group (preferably an aromatic hydrocarbon group having 6 to 20 carbon atoms), a heterocyclic group, -NH-, -SO-, -SO ２ Examples thereof include -, -CO-, -O-, -COO-, -OCO-, -S-, and groups combining two or more of these.

[0097] W ｄ２ Examples of the acid group and basic group represented by W include the acid group and basic group described above. ｄ２ is preferably an acid group.

[0098] n represents an integer of 1 to 4, and is preferably 1 or 2.

[0099] The content of the repeating units having an acid group is preferably 1 to 90 mol% of all repeating units of the graft resin. The lower limit is preferably 5 mol% or more, more preferably 10 mol% or more. The upper limit is preferably 85 mol% or less, more preferably 80 mol% or less.

[0100] The graft resin may further have a repeating unit having an ethylenically unsaturated bond-containing group, such as a vinyl group, a (meth)allyl group, a (meth)acryloyl group, or a (meth)acryloyloxy group.

[0101] The content of the repeating unit having an ethylenically unsaturated bond-containing group in all repeating units of the graft resin is preferably 1 mol% or more, more preferably 2 mol% or more, and even more preferably 3 mol% or more, with the upper limit being 90 mol% or less, 80 mol% or less, or 70 mol% or less.

[0102] The weight average molecular weight of the graft resin is preferably 3,000 to 50,000. The upper limit is preferably 45,000 or less, more preferably 40,000 or less. The lower limit is preferably 5,000 or more, more preferably 8,000 or more.

[0103] The specific polymer compound is also preferably a compound represented by formula (1). In formula (1), X １ represents a linking group having a valence of m+n and a molecular weight of 1,000 or less; Y １ is —O— or —NR Ｙ１ represents -, and R Ｙ１ represents a hydrogen atom or a substituent; Z １ represents a polyether structure or a polyester structure, R １ represents an alkyl group or an aryl group; m and n each independently represent an integer of 1 to 10;

[0104] X in formula (1) １ The molecular weight of the m+n valent linking group represented by X is preferably 50 to 500, and more preferably 50 to 250. １ Examples of the m+n valent linking group represented by include an aromatic ring group, a heterocyclic group, an aliphatic hydrocarbon group, and a group in which two or more of these groups are linked via a single bond or a linking group. Ｘ１ R Ｘ２ -, -NH-, -N<, -O-, -CO-, -COO-, -OCO-, -NHCO-, -NHCOO-, -CONH-, -OCONH-, -S-, -SO ２ - and - OSO ２ -, etc., -CR Ｘ１ R Ｘ２ -, -NH-, -N<, -O- or -SO ２ - is preferred. Ｘ１ and R Ｘ２ each independently represents a hydrogen atom or a methyl group.

[0105] The aromatic ring group preferably has 6 to 20 carbon atoms, and more preferably 6 to 12 carbon atoms. The aromatic ring group is preferably a benzene ring group or a naphthalene ring group, and more preferably a benzene ring group. The aromatic ring group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, a phenyl group, an amide group, a nitro group, and an alkoxy group.

[0106] The heterocyclic group may be a non-aromatic heterocyclic group or an aromatic heterocyclic group. The heterocyclic group is preferably a 5- or 6-membered ring. Examples of heteroatoms constituting the heterocyclic group include nitrogen atoms, oxygen atoms, and sulfur atoms. The number of heteroatoms constituting the heterocyclic group is preferably 1 to 3. The heterocyclic group may be a monocyclic group or a condensed ring. The heterocyclic group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, a phenyl group, an amide group, a nitro group, and an alkoxy group.

[0107] The aliphatic hydrocarbon group preferably has 2 to 20 carbon atoms. Examples of the aliphatic hydrocarbon group include saturated or unsaturated acyclic aliphatic hydrocarbon groups and aliphatic hydrocarbon groups containing a saturated or unsaturated aliphatic ring. The aliphatic ring may be a monocyclic ring or a fused ring. The aliphatic ring may have a crosslinked structure. The aliphatic hydrocarbon group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, and a phenyl group.

[0108] X １ The m+n valent linking group represented by is preferably an aromatic ring group, an aliphatic hydrocarbon group, or a group in which two or more of these groups are linked via a single bond or the above-mentioned linking group, and more preferably an aromatic ring group or a group in which two or more aromatic ring groups are linked via a single bond or the above-mentioned linking group.

[0109] Y in formula (1) １ is —O— or —NR Ｙ１ represents -, and R Ｙ１ represents a hydrogen atom or a substituent. Ｙ１ Examples of the substituent represented by R include an alkyl group and an aryl group, and an alkyl group is preferred. Ｙ１ is preferably a hydrogen atom. １ is preferably —O— or —NH—, and more preferably —O—.

[0110] Z in formula (1) １represents a polyether structure or a polyester structure, and is preferably a polyether structure. Examples of the polyether structure and polyester structure include those described above.

[0111] Z in formula (1) １ The molecular weight of the structure represented by is preferably 300 to 5000. The lower limit is preferably 500 or more, more preferably 700 or more. The upper limit of the molecular weight is preferably 3500 or less, more preferably 2500 or less.

[0112] Z in formula (1) １ is preferably a polyalkylene glycol structure having a molecular weight of 300 to 5000. The lower limit of the molecular weight is preferably 500 or more, more preferably 700 or more. The upper limit of the molecular weight is preferably 3500 or less, more preferably 2500 or less.

[0113] Z in formula (1) １ preferably contains a structure selected from formula (Z1-1) and formula (Z1-2), and more preferably contains a structure represented by formula (Z1-1). In formula (Z1-1), p1 represents an integer of 2 or greater, and preferably an integer of 2 to 90. The lower limit is preferably an integer of 3 or greater, more preferably an integer of 5 or greater, and even more preferably an integer of 10 or greater. The upper limit is preferably an integer of 60 or less, more preferably an integer of 50 or less, and even more preferably an integer of 40 or less. In formula (Z2-1), p2 represents an integer of 2 or greater, and preferably an integer of 2 to 90. The lower limit is preferably an integer of 3 or greater, more preferably an integer of 5 or greater, and even more preferably an integer of 10 or greater. The upper limit is preferably an integer of 60 or less, more preferably an integer of 50 or less, and even more preferably an integer of 40 or less.

[0114] Z in formula (1) １ A preferred embodiment of the formula (1) is a structure represented by formula (Z1-1). １Another preferred embodiment includes a structure represented by formula (Z1-1) and a structure represented by formula (Z1-2). In this embodiment, the ratio of the number of repeating units (p1) of the structure represented by formula (Z1-1) to the number of repeating units (p2) of the structure represented by formula (Z1-2) is preferably p1:p2=1:0.05 to 1.5, more preferably 1:0.1 to 1.2, and even more preferably 1:0.12 to 1.0.

[0115] R in formula (1) １ represents an alkyl group or an aryl group, and is preferably an alkyl group. The number of carbon atoms in the alkyl group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15. The alkyl group is preferably linear or branched. 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 15.

[0116] In formula (1), m and n each independently represent an integer of 1 to 10. m is preferably an integer of 1 to 4, more preferably an integer of 1 to 3, and even more preferably 2 or 3. n is preferably an integer of 1 to 4, more preferably an integer of 1 to 3, and even more preferably 2 or 3. The lower limit of n+m is 2 or more, preferably 3 or more, and more preferably 4 or more. The upper limit is preferably 10 or less, and even more preferably 8 or less. n+m is preferably 6.

[0117] The weight average molecular weight of formula (1) is preferably 1,000 to 10,000. The upper limit is preferably 8,000 or less, and more preferably 4,000 or less. The lower limit is preferably 1,500 or more, and more preferably 2,000 or more.

[0118] The composition of the present invention preferably contains 10 to 100 parts by mass, more preferably 10 to 50 parts by mass, still more preferably 30 to 50 parts by mass, and particularly preferably 30 to 40 parts by mass of the specific polymer compound relative to 100 parts by mass of the pigment.

[0119] The content of the specific polymer compound in the total solid content of the composition is preferably 5 to 40% by mass, with the upper limit being preferably 35% by mass or less, and more preferably 30% by mass or less, and the lower limit being preferably 10% by mass or more, and more preferably 15% by mass or more.

[0120] The composition of the present invention may contain only one specific polymer compound or two or more specific polymer compounds. When two or more specific acidic compounds are contained, the total amount thereof is preferably within the above range.

[0121] <<Dye>> The composition of the present invention may further contain a dye. Examples of the dye include a chromatic dye, a black dye, and an infrared absorbing dye.

[0122] The chromatic dye is not particularly limited, and known dyes can be used, such as pyrazole azo dyes, anilino azo dyes, triarylmethane dyes, anthraquinone dyes, anthrapyridone dyes, benzylidene dyes, oxonol dyes, pyrazolotriazole azo dyes, pyridone azo dyes, cyanine dyes, phenothiazine dyes, pyrrolopyrazole azomethine dyes, xanthene dyes, phthalocyanine dyes, benzopyran dyes, indigo dyes, and pyrromethene dyes.

[0123] Examples of black dyes include bisbenzofuranone dyes, azomethine dyes, perylene dyes, and azo dyes.

[0124] Examples of infrared absorbing dyes include pyrrolopyrrole dyes, cyanine dyes, squarylium dyes, phthalocyanine dyes, naphthalocyanine dyes, quaterrylene dyes, merocyanine dyes, croconium dyes, oxonol dyes, iminium dyes, dithiol dyes, triarylmethane dyes, pyrromethene dyes, azomethine dyes, anthraquinone dyes, and dibenzofuranone dyes.

[0125] A dye multimer can also be used as the dye. The dye multimer has two or more dye structures in one molecule, preferably 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 2,000 to 50,000. The lower limit is more preferably 3,000 or more, and even more preferably 6,000 or more. The upper limit is more preferably 30,000 or less, and even more preferably 20,000 or less. As the dye multimer, compounds described in JP 2011-213925 A, JP 2013-041097 A, JP 2015-028144 A, JP 2015-030742 A, WO 2016 / 031442, etc. can also be used.

[0126] As the chromatic dye or the above-mentioned chromatic pigment, a triarylmethane dye polymer described in Korean Patent Publication No. 10-2020-0028160, a xanthene compound described in JP-A-2020-117638, a phthalocyanine compound described in WO 2020 / 174991, an isoindoline compound described in JP-A-2020-160279 or a salt thereof, a compound represented by formula 1 described in Korean Patent Publication No. 10-2020-0069442, a compound represented by formula 1 described in Korean Patent Publication No. 10-2020-0069730, a compound represented by formula 1 described in Korean Patent Publication No. 10-2020-0069070 Compounds represented by formula 1 described in Korean Patent Publication No. 10-2020-0069067, compounds represented by formula 1 described in Korean Patent Publication No. 10-2020-0069062, halogenated zinc phthalocyanine pigments described in Japanese Patent No. 6809649, isoindoline compounds described in JP-A-2020-180176, phenothiazine compounds described in JP-A-2021-187913, halogenated zinc phthalocyanines described in WO 2022 / 004261, and halogenated zinc phthalocyanines described in WO 2021 / 250883 can be used. The other colorant may be a rotaxane, and the dye skeleton may be used in the cyclic structure of the rotaxane, in the rod-shaped structure, or in both structures. Other colorants include quinophthalone compounds represented by formula 1 in Korean Patent Publication No. 10-2020-0030759, polymer dyes described in Korean Patent Publication No. 10-2020-0061793, colorants described in JP-A-2022-029701, isoindoline compounds described in WO 2022 / 014635, and aluminum phthalocyanine compounds described in WO 2022 / 024926. compounds described in JP-A-2022-045895, compounds described in WO 2022 / 050051, compounds described in JP-A-2020-090676, compounds described in JP-A-2020-055956, compounds described in JP-A-2021-031681, compounds described in JP-A-2022-056354, compounds described in U.S. Patent Application Publication No. 2021 / 0355327,Compounds described in WO 2022 / 065357, compounds described in JP 2020-045436 A, compounds described in Korean Patent Publication No. 10-2021-0146726, compounds described in JP 2018-178039 A, compounds described in Chinese Patent Publication No. 113881244, compounds described in Chinese Patent Publication No. 113881245, and Chinese Patent Publication No. 113881246 compounds described in JP-A-2022-104822, compounds described in JP-A-2022-096701, compounds described in JP-A-2020-023652, green pigments described on pages 80 to 84 of the Journal of the Color Materials Association (published in 2022), compounds described in JP-A-2022-143135, compounds described in JP-A-2022-140287, compounds described in WO 2022 / 136308, Chinese Patent Perylene compounds described in Patent Publication No. 113061349, cyan pigments described in Korean Patent Publication No. 10-2017-0018993, isoindoline compounds described in JP-A-2020-180176, compounds described in JP-A-2023-013209, compounds described in JP-A-2023-013166, xanthene compounds described in WO 2023 / 286526, and compounds described in JP-A-2021-155746 Compounds described in JP-A-2021-155747, compounds described in JP-A-2021-155748, compounds described in JP-A-2021-155749, compounds described in WO 2018 / 051876, compounds described in JP-A-2020-083981, compounds described in JP-A-2023-056463, compounds described in JP-T-2023-515473, and the like can also be used.

[0127] <<Resin>> The composition of the present invention can further contain a resin as a material other than the above-described compound D. Resins are blended, for example, for the purpose of dispersing pigments and the like in the composition or for use as a binder. Resins used primarily to disperse pigments and the like in the composition are also called dispersants. However, these uses of resins are merely examples, and resins can also be used for purposes other than these uses.

[0128] Examples of resins include (meth)acrylic resins, epoxy resins, (meth)acrylamide resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, polyarylene ether phosphine oxide resins, polyimide resins, polyamideimide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, and siloxane resins. Further, examples of the resin include the resins described in paragraphs 0091 to 0099 of WO 2022 / 065215, the blocked polyisocyanate resins described in JP 2016-222891 A, the resins described in JP 2020-122052 A, the resins described in JP 2020-111656 A, the resins described in JP 2020-139021 A, the resins described in JP 2017-138503 A containing a structural unit having a ring structure in the main chain and a structural unit having a biphenyl group in the side chain, and the resins described in paragraphs 0199 to 0199 of JP 2020-186373 A. 0233, the alkali-soluble resin described in JP 2020-186325 A, the resin represented by formula 1 described in Korean Patent Publication No. 10-2020-0078339, the copolymer containing an epoxy group and an acid group described in WO 2022 / 030445, the resin described in JP 2018-135514 A, the copolymer described in JP 2020-041046 A, the resin described in JP 2023-033156 A, the resin described in JP 2023-030386 A, and the resin described in JP 2023-027753 A can also be used.

[0129] 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.

[0130] The resin to be used is preferably a resin having an acid group, such as a carboxy group, a phosphate group, a sulfo group, or a phenolic hydroxy group.

[0131] The acid value of the resin having acid groups is preferably 30 to 500 mgKOH / g. The lower limit is more preferably 40 mgKOH / g or more, and particularly preferably 50 mgKOH / g or more. The upper limit is more preferably 400 mgKOH / g or less, even more preferably 300 mgKOH / g or less, and particularly preferably 200 mgKOH / g or less. The weight average molecular weight (Mw) of the resin having acid groups is preferably 5,000 to 100,000, and more preferably 5,000 to 50,000. The number average molecular weight (Mn) of the resin having acid groups is preferably 1,000 to 20,000.

[0132] The resin having an acid group preferably contains a repeating unit having an acid group on a side chain, and more preferably contains 5 to 70 mol% of the repeating units having an acid group on a side chain based on all repeating units of the resin. The upper limit of the content of repeating units having an acid group on a side chain is preferably 50 mol% or less, more preferably 30 mol% or less. The lower limit of the content of repeating units having an acid group on a side chain is preferably 10 mol% or more, more preferably 20 mol% or more.

[0133] For resins having acid groups, please refer to the descriptions in paragraphs

[0558] to

[0571] of JP 2012-208494 A (corresponding to paragraphs

[0685] to

[0700] of U.S. Patent Application Publication No. 2012 / 0235099 A) and paragraphs

[0076] to

[0099] of JP 2012-198408 A, the contents of which are incorporated herein by reference. Alternatively, commercially available resins having acid groups can be used. There are no particular limitations on the method for introducing acid groups into the resin, and examples include the method described in Japanese Patent No. 6,349,629 A. Furthermore, examples of methods for introducing acid groups into the resin include a method in which an acid anhydride is reacted with a hydroxy group generated by a ring-opening reaction of an epoxy group to introduce the acid group.

[0134] A resin having a basic group can also be used as the resin. The resin having a basic group is preferably a resin containing a repeating unit having a basic group in the side chain, more preferably a copolymer having a repeating unit having a basic group in the side chain and a repeating unit not containing a basic group, and even more preferably a block copolymer having a repeating unit having a basic group in the side chain and a repeating unit not containing a basic group. The resin having a basic group can also be used as a dispersant. The amine value of the resin having a basic group is preferably 5 to 300 mgKOH / g. The lower limit is preferably 10 mgKOH / g or more, more preferably 20 mgKOH / g or more. The upper limit is preferably 200 mgKOH / g or less, more preferably 100 mgKOH / g or less.

[0135] Commercially available resins having basic groups include DISPERBYK-161, 162, 163, 164, 166, 167, 168, 174, 182, 183, 184, 185, 2000, 2001, 2050, 2150, 2163, 2164, and BYK-LPN6919 (all manufactured by BYK-Chemie), and Solsperse 112. 00, 13240, 13650, 13940, 24000, 26000, 28000, 32000, 32500, 32550, 32600, 33000, 34750, 35100, 35200, 37500, 38500, 39000, 53095, 56000, 7100 (all manufactured by The Lubrizol Group, Japan), Efka PX 4300, 4330, 4046, 4060, 4080 (all manufactured by BASF), and the like. In addition, the resin having a basic group may be the block copolymer (B) described in paragraphs 0063 to 0112 of JP-A-2014-219665, the block copolymer A1 described in paragraphs 0046 to 0076 of JP-A-2018-156021, or the vinyl resin having a basic group described in paragraphs 0150 to 0153 of JP-A-2019-184763, the contents of which are incorporated herein by reference.

[0136] It is also preferable to use a resin having an acid group and a resin having a basic group. According to this embodiment, the storage stability of the composition can be further improved. When a resin having an acid group and a resin having a basic group are used in combination, the content of the resin having a basic group is preferably 20 to 500 parts by mass, more preferably 30 to 300 parts by mass, and even more preferably 50 to 200 parts by mass per 100 parts by mass of the resin having an acid group.

[0137] It is also preferable to use a resin having an aromatic carboxy group as the resin. In a resin having an aromatic carboxy group, the aromatic carboxy group may be contained in the main chain of the repeating unit or may be contained in a side chain of the repeating unit. It is preferable that the aromatic carboxy group is contained in the main chain of the repeating unit. In this specification, an aromatic carboxy group refers to a group having a structure in which one or more carboxy groups are bonded to an aromatic ring. In the aromatic carboxy group, the number of carboxy groups bonded to the aromatic ring is preferably 1 to 4, and more preferably 1 to 2. Examples of resins having an aromatic carboxy group include the resins described in paragraphs 0082 to 0107 of WO 2021 / 166858.

[0138] The resin is preferably at least one selected from the group consisting of graft polymers, star polymers, block copolymers, and resins in which at least one end of the polymer chain is capped with an acid group. Such resins are preferably used as dispersants.

[0139] Examples of graft polymers include resins having repeating units with graft chains. Examples of graft chains include graft chains containing at least one structure selected from a polyester structure, a polyether structure, a polystyrene structure, and a poly(meth)acrylic structure. The terminal structure of the graft chain is not particularly limited. It may be a hydrogen atom or a substituent. Examples of the substituent include an alkyl group, an alkoxy group, and an alkylthioether group. Of these, from the viewpoint of improving the dispersibility of the pigment, groups having a steric repulsion effect are preferred, and alkyl or alkoxy groups having 5 to 30 carbon atoms are preferred. The alkyl and alkoxy groups may be linear, branched, or cyclic, with linear or branched being preferred.

[0140] Specific examples of the graft polymer include the resins described in paragraphs 0025 to 0094 of JP 2012-255128 A, paragraphs 0022 to 0097 of JP 2009-203462 A, and paragraphs 0102 to 0166 of JP 2012-255128 A. Among the graft polymers, a graft polymer having a weight average molecular weight of 2,000 to 30,000 and having a graft chain containing at least one structure selected from a polyester structure and a polyether structure and at least one group selected from an acid group and a basic group is a material corresponding to the above-mentioned compound D.

[0141] Examples of star polymers include resins having a structure in which multiple polymer chains are bonded to a core portion. Specific examples of star polymers include polymer compounds C-1 to C-31 described in paragraphs 0196 to 0209 of JP 2013-043962 A.

[0142] The block copolymer is preferably a block copolymer of a polymer block having a repeating unit containing an acid group or a basic group (hereinafter also referred to as block A) and a polymer block having a repeating unit not containing an acid group or a basic group (hereinafter also referred to as block B). As the block copolymer, the block copolymer (B) described in paragraphs 0063 to 0112 of JP-A No. 2014-219665 and the block copolymer A1 described in paragraphs 0046 to 0076 of JP-A No. 2018-156021 can also be used, the contents of which are incorporated herein by reference.

[0143] Examples of resins in which at least one end of a polymer chain is capped with an acid group include resins in which at least one end of a polymer chain containing at least one structure selected from a polyester structure, a polyether structure, and a poly(meth)acrylic structure is capped with an acid group. Examples of the acid group that caps the end of a polymer chain include a carboxy group, a sulfo group, and a phosphate group. Among resins in which at least one end of a polymer chain is capped with an acid group, a graft polymer having a weight-average molecular weight of 2,000 to 30,000 is a material that corresponds to the above-mentioned compound D.

[0144] The resin can also be used as a dispersant. Examples of dispersants include acidic dispersants (acidic resins) and basic dispersants (basic resins). Here, the term "acidic dispersant (acidic resin)" refers to a resin in which the amount of acid groups is greater than the amount of basic groups. As the acidic dispersant (acidic resin), a resin in which the amount of acid groups is 70 mol% or more is preferred when the total amount of the acid groups and the basic groups is taken as 100 mol%. The acid group possessed by the acidic dispersant (acidic resin) is preferably a carboxy group. The acid value of the acidic dispersant (acidic resin) is preferably 10 to 105 mgKOH / g. Furthermore, the term "basic dispersant (basic resin)" refers to a resin in which the amount of basic groups is greater than the amount of acid groups. As the basic dispersant (basic resin), a resin in which the amount of basic groups is greater than 50 mol% is preferred when the total amount of the acid groups and the basic groups is taken as 100 mol%. The basic group possessed by the basic dispersant is preferably an amino group.

[0145] Dispersants are also commercially available, and specific examples thereof include the Disperbyk series manufactured by BYK-Chemie (e.g., Disperbyk-111, 161, 2001, etc.), the Solsperse series manufactured by Lubrizol Japan Co., Ltd. (e.g., Solsperse 20000, 76500, etc.), the Ajisper series manufactured by Ajinomoto Fine-Techno Co., Ltd., A208F (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.), H-3606 (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.), and Sandet ET (manufactured by Sanyo Chemical Industries, Ltd.). In addition, the products described in paragraph 0129 of JP-A No. 2012-137564 and the products described in paragraph 0235 of JP-A No. 2017-194662 can also be used as dispersants.

[0146] The content of the resin in the total solid content of the composition is preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 10% by mass or less. The total content of the resin and the specific polymer compound in the total solid content of the composition is preferably 10 to 30% by mass. The upper limit is preferably 30% by mass or less, more preferably 25% by mass or less. The lower limit is preferably 20% by mass or more, more preferably 15% by mass or more. The composition of the present invention may contain only one type of resin, or may contain two or more types. When two or more types of resins are contained, the total amount thereof preferably falls within the above range.

[0147] <<Polymerizable Compound>> The composition of the present invention preferably contains a polymerizable compound. Examples of the polymerizable compound include 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, a (meth)acryloyl group, and a (meth)acryloyloxy group. The polymerizable compound used in the present invention is preferably a radically polymerizable compound.

[0148] The molecular weight of the polymerizable compound is preferably 100 to 2500. 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.

[0149] The ethylenically unsaturated bond-containing group value (hereinafter referred to as C═C value) of the polymerizable compound is preferably 2 to 14 mmol / g from the viewpoint of storage stability of the composition. The lower limit is preferably 3 mmol / g or more, more preferably 4 mmol / g or more, and even more preferably 5 mmol / g or more. The upper limit is preferably 12 mmol / g or less, more preferably 10 mmol / g or less, and even more preferably 8 mmol / g or less. The C═C value of the polymerizable compound is a value calculated by dividing the number of ethylenically unsaturated bond-containing groups contained in one molecule of the polymerizable compound by the molecular weight of the polymerizable compound.

[0150] The polymerizable compound is preferably a compound containing three 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. Furthermore, the polymerizable compound is preferably a trifunctional to 15-functional (meth)acrylate compound, and more preferably a trifunctional to hexafunctional (meth)acrylate compound. Specific examples of the polymerizable compound include the compounds described in paragraphs 0075 to 0083 of WO 2022 / 065215 and the compounds described in Taiwan Patent Application Publication No. 201832008.

[0151] Preferred polymerizable compounds include dipentaerythritol tri(meth)acrylate (commercially available product: KAYARAD D-330, manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetra(meth)acrylate (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 the (meth)acryloyl group is bonded via an ethylene glycol and / or propylene glycol residue (e.g., SR454, SR499, commercially available from Sartomer). Examples of polymerizable compounds include diglycerin EO (ethylene oxide) modified (meth)acrylate (commercially available product: M-460, manufactured by Toagosei Co., Ltd.), pentaerythritol tetraacrylate (NK Ester A-TMMT, manufactured by Shin-Nakamura Chemical Co., Ltd.), and 1,6-hexanediol diacrylate (KAYARAD, manufactured by Nippon Kayaku Co., Ltd.). HDDA), RP-1040 (manufactured by Nippon Kayaku Co., Ltd.), Aronix TO-2349 (manufactured by Toagosei Co., Ltd.), NK Oligo UA-7200 (manufactured by Shin-Nakamura Chemical Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600, LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), Light Acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.), dendrimer structure or hyperbranched structure described in JP-A-2023-043479, and the like can also be used.

[0152] The content of the polymerizable compound in the total solid content of the composition is preferably 1 to 35% by mass. The upper limit is preferably 30% by mass or less, more preferably 25% by mass or less, even more preferably 20% by mass or less, and particularly preferably 10% by mass or less. The lower limit is preferably 2% by mass or more, more preferably 5% by mass or more. The composition of the present invention may contain only one type of polymerizable compound, or may contain two or more types. When two or more types of polymerizable compounds are contained, the total amount thereof preferably falls within the above range.

[0153] <<Photopolymerization initiator>> The composition of the present invention preferably contains a photopolymerization initiator. When the composition of the present invention contains a polymerizable compound, the composition of the present invention preferably further contains a photopolymerization initiator. The photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, a compound that is photosensitive to light in the ultraviolet to visible region is preferred. The photopolymerization initiator is preferably a photoradical polymerization initiator.

[0154] 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 compounds, 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 benzyl dimethyl ketal compound, an α-hydroxyketone compound, an α-aminoketone compound, an acylphosphine compound, a phosphine oxide compound, a metallocene compound, an oxime compound, a hexaarylbiimidazole compound, an onium compound, a benzothiazole compound, a benzophenone compound, an acetophenone compound, a cyclopentadiene-benzene-iron complex, a halomethyloxadiazole compound, or 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.Further, as the photopolymerization initiator, compounds described in paragraphs 0065 to 0111 of JP-A No. 2014-130173, compounds described in Japanese Patent No. 6301489, compounds described in MATERIAL STAGE 37-60pp, vol. 19, No. peroxide-based photopolymerization initiators described in JP-A-2019-3, 2019, photopolymerization initiators described in WO 2018 / 221177, photopolymerization initiators described in WO 2018 / 110179, photopolymerization initiators described in JP-A-2019-043864, photopolymerization initiators described in JP-A-2019-044030, peroxide-based initiators described in JP-A-2019-167313, aminoacetophenone-based initiators having an oxazolidine group described in JP-A-2020-055992, Oxime-based photopolymerization initiators described in JP-A-0459, polymers described in JP-A-2020-172619, compounds represented by formula 1 described in WO 2020 / 152120, compounds described in JP-A-2021-181406, photopolymerization initiators described in JP-A-2022-013379, compounds represented by formula (1) described in JP-A-2022-015747, fluorine-containing fluorene oxime ester-based photoinitiators described in JP-T-2021-507058, Chinese Patent Application Publication No. 1107643 Initiators described in Patent Publication No. 67, initiators described in JP-T-2022-518535, initiators described in WO 2021 / 175855, compounds described in Taiwan Patent Application Publication No. 202200534, compounds described in JP-A-2022-078550, compounds described in Korean Patent Publication No. 10-2017-0087330, compounds described in WO 2022 / 075452, oxime ester compounds described in Chinese Patent Application Publication No. 110066225, Korean Patent Publication No. 10-2017-0087330, Examples of the photopolymerization initiator include compounds described in WO 2019 / 013112, compounds having a triarylamine or N-arylcarbazole skeleton described in paragraphs 0042 to 0062, oxime ester photopolymerization initiators described in Japanese Patent No. 7219378, photopolymerization initiators described in Korean Patent Publication No. 10-2021-0146174, photopolymerization initiators described in WO 2019 / 013112, and photopolymerization initiators described in JP 2023-033731 A.

[0155] Specific examples of the hexaarylbiimidazole compound include 2,2',4-tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4,5-diphenyl-1,1'-biimidazole.

[0156] Commercially available α-hydroxyketone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, and Omnirad 127 (all manufactured by IGM Resins B.V.), and Irgacure 184, Irgacure 1173, Irgacure 2959, and Irgacure 127 (all manufactured by BASF). Commercially available α-aminoketone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379EG (all manufactured by IGM Resins B.V.), Irgacure 907, Irgacure 369, Irgacure 369E, Irgacure 379EG (all manufactured by BASF), etc. Commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (all manufactured by IGM Resins B.V.), Irgacure 819, Irgacure TPO (all manufactured by BASF), etc.

[0157] Examples of the oxime compound include the compounds described in paragraph 0142 of WO 2022 / 085485, the compounds described in Japanese Patent No. 5430746, the compounds described in Japanese Patent No. 5647738, the compounds represented by the general formula (1) of JP-A-2021-173858, and the compounds described in paragraphs 0022 to 0024, and the compounds represented by the general formula (1) of JP-A-2021-170089 and the compounds described in paragraphs 0117 to 0120. 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, 2-ethoxycarbonyloxyimino-1-phenylpropan-1-one, 1-[4-(phenylthio)phenyl]-3-cyclohexyl-propane-1,2-dione-2-(O-acetyloxime), and the like. Commercially available products include Irgacure OXE01, Irgacure OXE02, Irgacure OXE03, and Irgacure OXE04 (manufactured by BASF), TR-PBG-301, TR-PBG-304, and TR-PBG-327 (manufactured by TRONLY), and ADEKA OPTOMER N-1919 (manufactured by ADEKA Corporation, photopolymerization initiator 2 described in JP-A-2012-014052). Furthermore, 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 (manufactured by ADEKA Corporation).

[0158] As the photopolymerization initiator, an oxime compound having a fluorene ring, an oxime compound having a skeleton in which at least one benzene ring of a carbazole ring is replaced with a naphthalene ring, an oxime compound having a fluorine atom, an oxime compound having a nitro group, an oxime compound having a benzofuran skeleton, an oxime compound in which a substituent having a hydroxy group is bonded to a carbazole skeleton, or a compound described in paragraphs 0143 to 0149 of WO 2022 / 085485 can also be used.

[0159] As the photopolymerization initiator, a compound represented by formula (OX-1) can also be used.

[0160] In formula (OX-1), X １ａ represents a divalent linking group containing at least one ring selected from the group consisting of an aromatic ring and a heterocyclic ring; １ａ represents a hydrogen atom or an acyl group; R ２ａ represents an alkyl group or an aryl group; R ３ａ and R ４ａ each independently represents a hydrogen atom or an alkyl group; Alk １ and Alk ２ each independently represents an alkyl group; R ３ａ and R ４ａ may be bonded to form a ring, Alk １ and Alk ２ may be bonded to form a ring, and n represents 0 or 1.

[0161] X in formula (OX-1) １ａ Examples of the divalent linking group represented by include a divalent aromatic ring group, a divalent heterocyclic group, a divalent group in which two or more aromatic rings are bonded via a single bond or a linking group, a divalent group in which two or more heterocycles are bonded via a single bond or a linking group, and a divalent group in which an aromatic ring and a heterocycle are bonded via a single bond or a linking group. Examples of the linking group that bonds the above-mentioned aromatic rings, heterocyclic groups, or aromatic rings and heterocycles include -CH ２ -, -O-, -CO-, -S-, -NR ｘ - and groups combining these. ｘrepresents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heterocyclic group.

[0162] X in formula (OX-1) １ａ is preferably a group represented by any one of formulas (X-1) to (X-13), more preferably a group represented by formula (X-1), formula (X-2), formula (X-4), formula (X-6) or formula (X-8), and further preferably a group represented by formula (X-2) or formula (X-6). In the formula R Ｘ１ ~R Ｘ９ each independently represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heterocyclic group.

[0163] R Ｘ１ ~R Ｘ９ The number of carbon atoms in the alkyl group represented by is preferably 1 to 15, and more preferably 1 to 10. The alkyl group may be linear, branched, or cyclic. The alkyl group may have a substituent. Examples of the substituent include a halogen atom, an aryl group, and a heterocyclic group.

[0164] R Ｘ１ ~R Ｘ９ The number of carbon atoms in the alkenyl group represented by is preferably 2 to 15, and more preferably 2 to 10. The alkenyl group may be linear, branched, or cyclic. The alkenyl group may have a substituent. Examples of the substituent include a halogen atom, an aryl group, and a heterocyclic group.

[0165] R Ｘ１ ~R Ｘ９ The number of carbon atoms in the alkynyl group represented by is preferably 2 to 15, and more preferably 2 to 10. The alkynyl group may be linear, branched, or cyclic. The alkynyl group may have a substituent. Examples of the substituent include a halogen atom, an aryl group, and a heterocyclic group.

[0166] R Ｘ１ ~R Ｘ９The number of carbon atoms in the aryl group represented by is preferably 6 to 20, more preferably 6 to 12, still more preferably 6 to 10, and particularly preferably 6. The aryl group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, and a heterocyclic group.

[0167] R Ｘ１ ~R Ｘ９ The heterocyclic group represented by is preferably a 5-membered or 6-membered ring. The heteroatoms contained in the heterocyclic group are preferably oxygen atoms, nitrogen atoms, and sulfur atoms. The number of heteroatoms contained in the heterocyclic group is preferably 1 to 3. The heterocyclic group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, and an aryl group.

[0168] R in formula (OX-1) １ａ represents a hydrogen atom or an acyl group, and is preferably an acyl group. １ａ The acyl group represented by is —C(O)—R １０１ It is preferable that R １０１ represents an aryl group or a heterocyclic group, and is preferably an aryl group.

[0169] R １０１ The number of carbon atoms in the aryl group represented by R is preferably 6 to 20, and more preferably 6 to 12. The aryl group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, and a heterocyclic group. １０１ The aryl group represented by is preferably a phenyl group, a methylphenyl group or a naphthyl group, more preferably a methylphenyl group or a naphthyl group.

[0170] R １０１ The heterocyclic group represented by is preferably a 5-membered or 6-membered ring. The heteroatoms contained in the heterocyclic group are preferably oxygen atoms, nitrogen atoms, and sulfur atoms. The number of heteroatoms contained in the heterocyclic group is preferably 1 to 3. The heterocyclic group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, and an aryl group.

[0171] R in formula (OX-1)２ａ represents an alkyl group or an aryl group, and is preferably an alkyl group because the reactivity of the generated radical is high. ２ａ The number of carbon atoms in the alkyl group represented by is preferably 1 to 15, more preferably 1 to 10, even more preferably 1 to 5, and even more preferably 1 to 3. The alkyl group may be linear, branched, or cyclic, but is preferably linear or branched, and more preferably linear. The alkyl group may have a substituent, but is preferably an unsubstituted alkyl group. R ２ａ The alkyl group represented by R is preferably an unsubstituted linear or branched alkyl group, and more preferably an unsubstituted linear alkyl group. ２ａ The number of carbon atoms in the aryl group represented by is preferably 6 to 20, more preferably 6 to 12, still more preferably 6 to 10, and particularly preferably 6. The aryl group may have a substituent, but is preferably an unsubstituted aryl group.

[0172] R in formula (OX-1) ３ａ and R ４ａ R each independently represents a hydrogen atom or an alkyl group, and is preferably a hydrogen atom. ３ａ and R ４ａ The number of carbon atoms in the alkyl group represented by is preferably 1 to 15, more preferably 1 to 10, even more preferably 1 to 5, and even more preferably 1 to 3. The alkyl group may be linear, branched, or cyclic, but is preferably linear or branched, and more preferably linear. The alkyl group may have a substituent, but is preferably an unsubstituted alkyl group. R ３ａ and R ４ａ may be bonded to form a ring. The ring formed is preferably a 5- or 6-membered ring, and more preferably a 5- or 6-membered aliphatic hydrocarbon ring.

[0173] Alk of formula (OX-1) １ and Alk ２each independently represents an alkyl group. The number of carbon atoms in the alkyl group is preferably 1 to 15, more preferably 1 to 10, even more preferably 1 to 5, and even more preferably 1 to 3. The alkyl group may be linear, branched, or cyclic, but is preferably linear or branched, and more preferably linear. The alkyl group may have a substituent, but is preferably an unsubstituted alkyl group. Alk １ and Alk ２ may be bonded to form a ring, and preferably form a ring. The ring formed is preferably a 5- or 6-membered ring, more preferably a 5- or 6-membered aliphatic hydrocarbon ring, and more preferably a cyclopentane ring or a cyclohexane ring.

[0174] In formula (OX-1), n ​​represents 0 or 1, and is preferably 0.

[0175] Specific examples of the compound represented by formula (OX-1) include the compounds described in paragraphs 0092 to 0096 of JP-A No. 2012-113104 and the compound described in paragraph 0041 of JP-A No. 2012-189997.

[0176] As the photopolymerization initiator, a compound represented by formula (OX-2) can also be used.

[0177] In formula (OX-2), R １ｂ and R ２ｂ each independently represents a substituent, R ３ｂ ~R ７ｂ each independently represents a hydrogen atom or a substituent, Ar １ｂ represents an aromatic ring group or a heterocyclic group which may have a substituent; n represents 0 or 1;

[0178] R １ｂ and R ２ｂExamples of the substituent represented by include an alkyl group and an aryl group, and an alkyl group is preferred. The alkyl group preferably has 1 to 15 carbon atoms, and more preferably 1 to 10 carbon atoms. The alkyl group may be linear, branched, or cyclic. The alkyl group may have a substituent. Examples of the substituent include a halogen atom, an aryl group, an alkenyl group, an alkynyl group, and a heterocyclic group. The aryl group preferably has 6 to 20 carbon atoms, more preferably 6 to 12 carbon atoms, even more preferably 6 to 10 carbon atoms, and particularly preferably 6 carbon atoms. The aryl group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, and a heterocyclic group.

[0179] R ３ｂ ~R ７ｂ Examples of the substituent represented by R include a halogen atom, an alkyl group, and an aryl group. Examples of the alkyl group and the aryl group include those described above. ３ｂ ~R ７ｂ is preferably a hydrogen atom.

[0180] Ar １ｂ represents an aromatic ring group or a heterocyclic group which may have a substituent, Ar １ｂ is preferably an aromatic ring group which may have a substituent. The aromatic ring group is preferably a benzene ring group or a naphthalene ring group, and more preferably a benzene ring group. Examples of the substituent include a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkylthio group, an arylthio group, a nitro group, and an acyl group, and an acyl group is preferred. Examples of the acyl group include the acyl groups described above.

[0181] As the photopolymerization initiator, a compound represented by formula (OX-3) can also be used.

[0182] In formula (OX-3), Ar １ｃ represents a (k+m+1)-valent aromatic ring group or a (k+m+1)-valent heterocyclic group; Ar ２ｃ represents a (k+2)-valent aromatic ring group or a (k+2)-valent heterocyclic group; R １ｃ ~R ３ｃeach independently represents a substituent; １ｃ is a single bond or CR １１ｃ R １２ｃ represents R １１ｃ and R １２ｃ each independently represents a hydrogen atom, an alkyl group, or an aryl group; １ｃ represents -O- or -S-; k represents 0 or 1; m represents an integer of 0 to 4; and n represents 0 or 1.

[0183] R １ｃ and R ２ｃ Examples of the substituent represented by include an alkyl group and an aryl group, and an alkyl group is preferred. The alkyl group preferably has 1 to 15 carbon atoms, and more preferably 1 to 10 carbon atoms. The alkyl group may be linear, branched, or cyclic. The alkyl group may have a substituent. Examples of the substituent include a halogen atom, an aryl group, an alkenyl group, an alkynyl group, and a heterocyclic group. The aryl group preferably has 6 to 20 carbon atoms, more preferably 6 to 12 carbon atoms, even more preferably 6 to 10 carbon atoms, and particularly preferably 6 carbon atoms. The aryl group may have a substituent. Examples of the substituent include a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, and a heterocyclic group. R ２ｃ is preferably an alkyl group having a branched or cyclic structure.

[0184] R ３ｃ Examples of the substituent represented by include a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, and an acyl group, and an acyl group is preferred. Examples of the acyl group include the acyl groups described above.

[0185] Ar １ｃ represents a (k+m+1)-valent aromatic ring group or a (k+m+1)-valent heterocyclic group, and is preferably a (k+m+1)-valent aromatic ring group. The aromatic ring group is preferably a benzene ring group or a naphthalene ring group, and more preferably a benzene ring group.

[0186] Ar ２ｃrepresents a (k+2)-valent aromatic ring group or a (k+2)-valent heterocyclic group, and is preferably a (k+2)-valent aromatic ring group. The aromatic ring group is preferably a benzene ring group or a naphthalene ring group, and more preferably a benzene ring group.

[0187] k represents 0 or 1, and is preferably 0.

[0188] m represents an integer of 0 to 4, preferably 0 or 1, and more preferably 1.

[0189] 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.

[0190]

[0191]

[0192]

[0193]

[0194] The oxime compound is preferably a compound having a maximum absorption wavelength in the wavelength range of 350 to 500 nm, and more preferably a compound having a maximum absorption wavelength in the wavelength range of 360 to 480 nm. Furthermore, from the viewpoint of sensitivity, the molar absorption coefficient of the oxime compound at a wavelength of 365 nm or 405 nm is preferably high, more preferably 1,000 to 300,000, even more preferably 2,000 to 300,000, and particularly preferably 5,000 to 200,000. The molar absorption coefficient of the compound can be measured using a known method. For example, it is preferable to measure using a spectrophotometer (Varian Cary-5 spectrophotometer) at a concentration of 0.01 g / L using ethyl acetate as a solvent.

[0195] As the photopolymerization initiator, it is also preferable to use a combination of Irgacure OXE01 (manufactured by BASF) and / or Irgacure OXE02 (manufactured by BASF) and Omnirad 2959 (manufactured by IGM Resins B.V.).

[0196] 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, thereby obtaining good sensitivity. Furthermore, when a compound with an asymmetric structure is used, crystallinity is reduced and solubility in solvents and the like is improved, making it less likely to precipitate over time, thereby improving the storage stability of the coloring composition. Specific examples of bifunctional or trifunctional or higher functional photoradical polymerization initiators include the compounds described in paragraph 0148 of WO 2022 / 065215.

[0197] The content of the photopolymerization initiator in the total solid content of the composition is preferably 0.1 to 20% by mass. The lower limit is preferably 0.5% by mass or more, more preferably 1% by mass or more, and even more preferably 1.5% by mass or more. The upper limit is preferably 15% by mass or less, more preferably 10% by mass or less. In the 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, it is preferable that the total amount thereof be within the above range.

[0198] <<Solvent>> The composition of the present invention preferably contains a solvent. Examples of the solvent include organic solvents. The type of solvent is basically not particularly limited as long as the solubility of each component and the coatability of the composition are satisfied. Examples of organic solvents include ester-based solvents, ketone-based solvents, alcohol-based solvents, amide-based solvents, ether-based solvents, and hydrocarbon-based solvents. For details of these, please refer to paragraph 0223 of WO 2015 / 166779, the contents of which are incorporated herein by reference. Furthermore, 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, 2-pentanone, 3-pentanone, 4-heptanone, cyclohexanone, 2-methylcyclohexanone, 3-methylcyclohexanone, 4-methylcyclohexanone, cycloheptanone, cyclooctanone, cyclohexyl acetate, cyclopentanone, ethyl carbitol acetate, butyl carbitol acetate, propylene glycol monomethyl ether ... Examples of suitable ethylene glycol monomethyl ether acetate include 3-methoxy-N,N-dimethylpropanamide, 3-butoxy-N,N-dimethylpropanamide, propylene glycol diacetate, 3-methoxybutanol, methyl ethyl ketone, gamma butyrolactone, sulfolane, anisole, 1,4-diacetoxybutane, diethylene glycol monoethyl ether acetate, butane-1,3-diyl diacetate, dipropylene glycol methyl ether acetate, diacetone alcohol (also known as diacetone alcohol, 4-hydroxy-4-methyl-2-pentanone), 2-methoxypropyl acetate, 2-methoxy-1-propanol, and isopropyl alcohol.However, it may be preferable to reduce the amount of aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) used as organic solvents for environmental reasons (for example, the amount may be 50 ppm by mass (parts per million) or less, 10 ppm by mass or less, or 1 ppm by mass or less, relative to the total amount of organic solvents).

[0199] The metal content of the organic solvent is preferably low. The metal content of the organic solvent is preferably, for example, 10 parts per billion (ppb) by mass or less. If necessary, an organic solvent with a mass ppt (parts per trillion) level may be used, and such an organic solvent is provided, for example, by Toyo Gosei Co., Ltd. (The Chemical Daily, November 13, 2015).

[0200] Methods for removing impurities such as metals from organic solvents include, for example, distillation (molecular distillation, thin-film distillation, etc.) and filtration using a filter. The pore size of the filter used for filtration is preferably 10 μm or less, more preferably 5 μm or less, and even more preferably 3 μm or less. The filter material is preferably polytetrafluoroethylene, polyethylene, or nylon.

[0201] The organic solvent may contain isomers (compounds having the same number of atoms but different structures). The organic solvent may contain only one type of isomer or multiple types of isomers.

[0202] The organic solvent preferably has a peroxide content of 0.8 mmol / L or less, and more preferably contains substantially no peroxide.

[0203] The content of the solvent in the composition is preferably from 10 to 95% by mass, more preferably from 20 to 90% by mass, and even more preferably from 30 to 90% by mass.

[0204] From the viewpoint of environmental regulations, it is preferable that the composition of the present invention is substantially free of environmentally restricted substances. In the present invention, "substantially free of environmentally restricted substances" means that the content of environmentally restricted substances in the composition is 50 ppm by mass or less, preferably 30 ppm by mass or less, more preferably 10 ppm by mass or less, and particularly preferably 1 ppm by mass or less. Examples of environmentally restricted substances include benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene. These substances are registered as environmentally restricted substances under the REACH (Registration Evaluation Authorization and Restriction of Chemicals) regulations, the PRTR (Pollutant Release and Transfer Register) Act, the VOC (Volatile Organic Compounds) regulations, etc., and their usage amounts and handling methods are strictly regulated. These compounds may be used as solvents when producing each component used in the composition, and may be mixed into the composition as a residual solvent. From the viewpoints of human safety and environmental considerations, it is preferable to reduce these substances as much as possible. Examples of methods for reducing environmentally restricted substances include a method in which the system is heated or depressurized to a temperature above the boiling point of the environmentally restricted substance, thereby distilling off the environmentally restricted substance from the system. Furthermore, when distilling off a small amount of environmentally regulated substances, it is useful to perform azeotropy with a solvent having a boiling point equivalent to that of the solvent in question in order to increase efficiency. Furthermore, when a radically polymerizable compound is contained, a polymerization inhibitor or the like may be added before distillation under reduced pressure to prevent intermolecular crosslinking due to the progress of a radical polymerization reaction during distillation under reduced pressure. These distillation methods can be used at any stage, such as the stage of raw materials, the stage of a product obtained by reacting the raw materials (e.g., a resin solution or a polyfunctional monomer solution after polymerization), or the stage of a composition prepared by mixing these compounds.

[0205] <<Compound Having a Cyclic Ether Group>> The composition of the present invention can contain a compound having a cyclic ether group. Examples of the cyclic ether group include an epoxy group and an oxetanyl group. The epoxy group may be an alicyclic epoxy group. The alicyclic epoxy group refers to a monovalent functional group having a cyclic structure in which an epoxy ring and a saturated hydrocarbon ring are condensed. The compound having a cyclic ether group is preferably a compound having an epoxy group (hereinafter also referred to as an epoxy compound). Examples of epoxy compounds include compounds having one or more epoxy groups per molecule, and compounds having two or more epoxy groups are preferred. The epoxy compound is preferably a compound having 1 to 100 epoxy groups per molecule. The upper limit of the number of epoxy groups contained in the epoxy compound can be, for example, 10 or less, or 5 or less. The lower limit of the number of epoxy groups contained in the epoxy compound is preferably 2 or more. As the epoxy compound, the compounds described in paragraphs 0034 to 0036 of JP-A-2013-011869, paragraphs 0147 to 0156 of JP-A-2014-043556, and paragraphs 0085 to 0092 of JP-A-2014-089408, and the compounds described in JP-A-2017-179172 can also be used.

[0206] The compound having a cyclic ether group may be a low molecular weight compound (for example, a molecular weight of less than 2000, or even less than 1000) or a high molecular weight compound (macromolecule) (for example, a molecular weight of 1000 or more, and in the case of a polymer, a weight average molecular weight of 1000 or more). The weight average molecular weight of the compound having a cyclic ether group is preferably 200 to 100,000, more preferably 500 to 50,000. The upper limit of the weight average molecular weight is more preferably 10,000 or less, particularly preferably 5,000 or less, and even more preferably 3,000 or less.

[0207] 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). Furthermore, compounds described in the examples below can also be used as compounds having a cyclic ether group.

[0208] The content of the compound having a cyclic ether group in the total solid content of the composition is preferably 0.1 to 20% by mass. The lower limit is, for example, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. The upper limit is, for example, more preferably 15% by mass or less, and even more preferably 10% by mass or less. Only one type of compound having a cyclic ether group may be used, or two or more types may be used. When two or more types are used, it is preferable that the total amount thereof is in the above range.

[0209] <<Curing Accelerator>> The composition of the present invention may contain a curing accelerator. Examples of the curing accelerator include thiol compounds, methylol compounds, amine compounds, phosphonium salt compounds, amidine salt compounds, amide compounds, base generators, isocyanate compounds, alkoxysilane compounds, and onium salt compounds. Specific examples of the curing accelerator include the compounds described in paragraph 0164 of WO 2022 / 085485 and the compounds described in JP 2021-181406 A. The content of the curing accelerator in the total solids content of the composition is preferably 0.3 to 8.9% by mass, more preferably 0.8 to 6.4% by mass.

[0210] <<UV Absorber>> The composition of the present invention may contain an UV absorber. Examples of UV absorbers include conjugated diene compounds, aminodiene compounds, salicylate compounds, benzophenone compounds, benzotriazole compounds, acrylonitrile compounds, hydroxyphenyltriazine compounds, indole compounds, triazine compounds, and dibenzoyl compounds. Specific examples of such compounds include the compound described in paragraph 0179 of WO 2022 / 085485, the reactive triazine UV absorber described in JP 2021-178918 A, the UV absorber described in JP 2022-007884 A, the compound described in Korean Patent Publication No. 10-2022-0014454, and the compound described in JP 2023-013321 A can also be used. The content of the UV absorber in the total solids content of the composition is preferably 0.01 to 10% by mass, more preferably 0.01 to 5% by mass. In the present invention, the ultraviolet absorber may be used alone or in combination of two or more kinds. When two or more kinds are used, it is preferable that the total amount is in the above range.

[0211] <<Polymerization Inhibitor>> The composition of the present invention may contain a polymerization inhibitor. Examples of polymerization inhibitors include hydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, tert-butylcatechol, benzoquinone, 4,4'-thiobis(3-methyl-6-tert-butylphenol), 2,2'-methylenebis(4-methyl-6-t-butylphenol), and N-nitrosophenylhydroxyamine salts (ammonium salts, cerous salts, etc.). Of these, p-methoxyphenol is preferred. The content of the polymerization inhibitor in the total solids content of the composition is preferably 0.0001 to 5 mass%. One type of polymerization inhibitor may be used alone, or two or more types may be used. When two or more types are used, the total amount preferably falls within the above range.

[0212] <<Silane Coupling Agent>> The composition of the present invention can contain a silane coupling agent. Examples of the silane coupling agent include silane compounds having a hydrolyzable group, and preferably a silane compound having a hydrolyzable group and other functional groups. The hydrolyzable group refers to a substituent directly bonded to a silicon atom that can form a siloxane bond by at least one of a hydrolysis reaction and a condensation reaction. Examples of the hydrolyzable group include a halogen atom, an alkoxy group, and an acyloxy group, with an alkoxy group being preferred. 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, with an amino group, a (meth)acryloyl group, and an epoxy group being preferred. Specific examples of the silane coupling agent include the compound described in paragraph 0177 of WO 2022 / 085485 and the compound described in JP 2019-183020 A. The content of the silane coupling agent in the total solid content of the composition is preferably 0.01 to 15.0 mass%, more preferably 0.05 to 10.0 mass%. Only one type of silane coupling agent may be used, or two or more types may be used. When two or more types are used, it is preferable that the total amount is within the above range.

[0213] <<Surfactant>> The composition of the present invention may contain a surfactant. As the surfactant, various surfactants such as a fluorine-based surfactant, a nonionic surfactant, a cationic surfactant, an anionic surfactant, and a silicone-based surfactant can be used. The surfactant is preferably a silicone-based surfactant or a fluorine-based surfactant, and more preferably a silicone-based surfactant. For details of the surfactant, reference may be made to the surfactants described in paragraphs 0238 to 0245 of WO 2015 / 166779, the contents of which are incorporated herein by reference.

[0214] As the fluorine-based surfactant, compounds described in paragraphs 0167 to 0173 of WO 2022 / 085485 can be used.

[0215] Examples of nonionic surfactants include the compounds described in paragraph 0174 of WO 2022 / 085485.

[0216] Silicone surfactants include DOWSIL SH8400, SH8400 FLUID, FZ-2122, 67 Additive, 74 Additive, M Additive, and SF 8419. OIL (all manufactured by Dow Toray Industries, Inc.), TSF-4300, TSF-4445, TSF-4460, TSF-4452 (all manufactured by Momentive Performance Materials), KP-341, KF-6000, KF-6001, KF-6002, KF-6003 (all manufactured by Shin-Etsu Chemical Co., Ltd.), BYK-307, BYK-322, BYK-323, BYK-330, BYK-333, BYK-3760, BYK-UV3510 (all manufactured by BYK-Chemie). As the silicone surfactant, compounds having the following structure can also be used.

[0217] The content of the surfactant in the total solid content of the 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. When two or more types are used, it is preferable that the total amount is in the above range.

[0218] <<Antioxidant>> The composition of the present invention can contain an antioxidant. Examples of antioxidants include phenolic compounds, phosphite ester compounds, and thioether compounds. As the phenolic compound, any phenolic compound known as a phenolic antioxidant can be used. Preferred phenolic compounds include hindered phenolic compounds. Compounds having a substituent at the position adjacent to the phenolic hydroxy group (ortho position) are preferred. The aforementioned substituent is preferably a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms. Furthermore, as the antioxidant, compounds having a phenol group and a phosphite ester group in the same molecule are also preferred. Furthermore, phosphorus-based antioxidants can also be suitably used as the antioxidant. 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 ethylbis(2,4-di-tert-butyl-6-methylphenyl)phosphite. Commercially available antioxidants include, for example, 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 (manufactured by ADEKA Corporation). Examples of the antioxidant include the compounds described in paragraphs 0023 to 0048 of Japanese Patent No. 6268967, the compounds described in WO 2017 / 006600, the compounds described in WO 2017 / 164024, and the compounds described in Korean Patent Publication No. 10-2019-0059371. The content of the antioxidant in the total solid content of the 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, it is preferable that the total amount is in the above range.

[0219] <<Other Components>> The composition of the present invention may contain, as necessary, sensitizers, plasticizers, and other auxiliary agents (e.g., conductive particles, fillers, antifoaming agents, flame retardants, leveling agents, release promoters, fragrances, surface tension modifiers, chain transfer agents, etc.). By appropriately incorporating these components, properties such as film physical properties can be adjusted. As these components, compounds described in paragraph 0182 of WO 2022 / 085485 can be used. In addition, as the chain transfer agent, thiol compounds described in JP 2020-109068 A can be used.

[0220] The 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 TiO ２ , ZrO ２ , Al ２ O ３ , SiO ２ The primary particle size of the metal oxide is preferably 1 to 100 nm, more preferably 3 to 70 nm, and even more preferably 5 to 50 nm. The metal oxide may have a core-shell structure. In this case, the core may be hollow.

[0221] The composition of the present invention may contain a light resistance improver. Examples of the light resistance improver include the compounds described in paragraph 0183 of WO 2022 / 085485.

[0222] It is also preferable that the composition of the present invention is substantially free of terephthalic acid esters. Here, "substantially free" means that the content of terephthalic acid esters in the total amount of the composition is 1,000 ppb by mass or less, more preferably 100 ppb by mass or less, and particularly preferably zero.

[0223] From the viewpoint of environmental regulations, the composition of the present invention preferably has a melamine content of 10,000 ppm by mass or less.

[0224] The composition of the present invention preferably has a free metal content of 100 ppm or less, more preferably 50 ppm or less. The free halogen content is preferably 100 ppm or less, more preferably 50 ppm or less. Methods for reducing the free metals and halogens in the composition include washing with ion-exchanged water, filtration, ultrafiltration, and purification with ion-exchange resins.

[0225] From the standpoint of environmental regulations, the use of perfluoroalkyl sulfonic acids and their salts, and perfluoroalkyl carboxylic acids and their salts may be restricted. When the content of the above-mentioned compounds in the composition of the present invention is reduced, the content of perfluoroalkyl sulfonic acids (particularly perfluoroalkyl sulfonic acids having a perfluoroalkyl group with 6 to 8 carbon atoms) and their salts, and perfluoroalkyl carboxylic acids (particularly perfluoroalkyl carboxylic acids having a perfluoroalkyl group with 6 to 8 carbon atoms) and their salts is preferably in the range of 0.01 ppb to 1,000 ppb, more preferably in the range of 0.05 ppb to 500 ppb, and even more preferably in the range of 0.1 ppb to 300 ppb, based on the total solids content of the composition. The composition of the present invention may be substantially free of perfluoroalkyl sulfonic acids and their salts, and perfluoroalkyl carboxylic acids and their salts. For example, by using a compound that can replace perfluoroalkyl sulfonic acid and its salt, and a compound that can replace perfluoroalkyl carboxylic acid and its salt, a composition that is substantially free of perfluoroalkyl sulfonic acid and its salt, and perfluoroalkyl carboxylic acid and its salt may be selected. Examples of compounds that can replace restricted compounds include compounds that are exempt from restrictions due to differences in the number of carbon atoms in the perfluoroalkyl group. However, the above does not preclude the use of perfluoroalkyl sulfonic acid and its salt, and perfluoroalkyl carboxylic acid and its salt. The composition of the present invention may contain perfluoroalkyl sulfonic acid and its salt, and perfluoroalkyl carboxylic acid and its salt within the maximum allowable range.

[0226] From the viewpoint of environmental regulations, the use of fluorine-containing compounds may be restricted. When the content of the fluorine-containing compound in the composition is reduced, the content of the fluorine-containing compound in the composition is preferably 5% by mass or less, more preferably 1% by mass or less, and even more preferably 0.1% by mass or less. The composition may be substantially free of fluorine-containing compounds.

[0227] The water content of the composition of the present invention is usually 3% by mass or less, preferably 0.01 to 1.5% by mass, and more preferably 0.1 to 1.0% by mass. The water content can be measured by the Karl Fischer method.

[0228] The composition of the present invention can be used by adjusting the viscosity for the purpose of adjusting the film surface state (flatness, etc.), adjusting the film thickness, etc. The viscosity value can be appropriately selected as needed, but for example, it is preferably 0.3 mPa·s to 50 mPa·s, and more preferably 0.5 mPa·s to 20 mPa·s at 25°C. The viscosity can be measured, for example, using a cone-plate type viscometer, with the temperature adjusted to 25°C.

[0229] <<Storage Container>> The container for storing the composition is not particularly limited, and any known container can be used. In addition, the container described in paragraph 0187 of WO 2022 / 085485 can be used as the storage container.

[0230] <Method for Preparing Composition> The composition of the present invention can be prepared by mixing the above-mentioned components. When preparing the composition, all components may be simultaneously dissolved and / or dispersed in a solvent to prepare the composition, or, if necessary, each component may be prepared as two or more appropriate solutions or dispersions, which are then mixed at the time of use (application) to prepare the composition.

[0231] Furthermore, the preparation of the composition preferably includes a process for dispersing the pigment. In the process for dispersing the pigment, mechanical forces used to disperse 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. When grinding the pigment in a sand mill (bead mill), it is preferable to use small-diameter beads, increase the bead packing ratio, or otherwise increase the grinding efficiency under such conditions. Furthermore, it is preferable to remove coarse particles after the grinding process by filtration, centrifugation, or the like. In addition, the process and disperser for dispersing pigments can be suitably used, for example, the process and disperser 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 the Management Development Center Publishing Department, October 10, 1978, and paragraph 0022 of JP 2015-157893 A. In addition, in the process for dispersing pigments, particle refinement may be performed in a salt milling process. For details on the materials, equipment, processing conditions, etc. used in the salt milling process, see, for example, JP 2015-194521 A and JP 2012-046629 A. Examples of materials for beads used in dispersion include zirconia, agate, quartz, titania, tungsten carbide, silicon nitride, alumina, stainless steel, and glass. The beads may also be made of an inorganic compound having a Mohs hardness of at least 2. The composition may contain 1 to 10,000 ppm of the beads.

[0232] When preparing the composition, it is preferable to filter the composition with a filter for the purpose of removing foreign matter, reducing defects, etc. Examples of the types of filters and filtration methods used for filtration include the filters and filtration methods described in paragraphs 0196 to 0199 of WO 2022 / 085485.

[0233] <Film> The film of the present invention is a film obtained from the composition of the present invention described above. The film of the present invention can be used in optical filters such as color filters, infrared transmission filters, and infrared cut filters.

[0234] The thickness of the film of the present invention can be adjusted appropriately depending on the purpose. For example, the 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 thickness is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more.

[0235] When the film of the present invention is used as a color filter, the film of the present invention preferably has a green, red, blue, cyan, magenta, or yellow hue, and more preferably has a green or red hue. Furthermore, the film of the present invention can be preferably used as a color pixel of a color filter. Examples of the color pixel include a red pixel, a green pixel, a blue pixel, a magenta pixel, a cyan pixel, and a yellow pixel, and a green pixel or a red pixel is preferred.

[0236] <Film Manufacturing Method> Next, a method for manufacturing a film of the present invention will be described. The film of the present invention can be manufactured via a step of applying the composition of the present invention. The film manufacturing method preferably further includes a step of forming a pattern (pixels). Methods for forming a pattern (pixels) include photolithography and dry etching, with photolithography being preferred. By forming a pattern by photolithography using the composition of the present invention, the generation of development residues can be further suppressed.

[0237] The pattern formation by the photolithography method preferably includes the steps of forming a composition layer on a support using the composition of the present invention, exposing the composition layer to light in a pattern, and developing and removing the unexposed areas of the composition layer to form a pattern (pixels). If necessary, a step of baking the composition layer (pre-baking step) and a step of baking the developed pattern (pixels) (post-baking step) may be provided.

[0238] In the step of forming a composition layer, a composition layer is formed on a support using the composition of the present invention. The support is not particularly limited and can be appropriately selected depending on the application. Examples include a glass substrate and a silicon substrate, with a silicon substrate being preferred. The silicon substrate may also be formed with a charge-coupled device (CCD), a complementary metal-oxide semiconductor (CMOS), a transparent conductive film, or the like. A black matrix is ​​sometimes formed on the silicon substrate to isolate each pixel. The silicon substrate may also be provided with an underlayer to improve adhesion with an upper layer, prevent diffusion of substances, or flatten the substrate surface. The surface contact angle of the underlayer is preferably 20 to 70° when measured with diiodomethane. It is also preferably 30 to 80° when measured with water.

[0239] Known methods can be used as the coating method for the composition. 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, the method described in JP-A-2009-145395); inkjet (for example, on-demand method, piezo method, thermal method), various printing methods such as nozzle jet ejection printing, flexographic printing, screen printing, gravure printing, reverse offset printing, metal mask printing; a transfer method using a mold or the like; a nanoimprint method, etc. can be mentioned. In addition, the coating method described in paragraph number 0207 of WO 2022 / 085485 can also be used.

[0240] The composition layer formed on the support may be dried (prebaked). When a 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, or 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.

[0241] Next, the composition layer is exposed to light in a pattern (exposure step). For example, the composition layer can be exposed to light in a pattern by using a stepper exposure machine, a scanner exposure machine, or the like, through a mask having a predetermined mask pattern. This allows the exposed portion to be cured.

[0242] 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 of 300 nm or more can also be used.

[0243] The exposure may be performed by continuous irradiation with light or by pulsed irradiation (pulse exposure), which is an exposure method in which light irradiation and pauses are repeated in short cycles (for example, milliseconds or less).

[0244] The irradiation amount (exposure amount) is, for example, 0.03 to 2.5 J / cm ２ is preferred, and 0.05 to 1.0 J / cm ２ The oxygen concentration during exposure can be appropriately selected. In addition to being performed in the atmosphere, exposure may be performed in a low-oxygen atmosphere with an oxygen concentration of 19% by volume or less (e.g., 15% by volume, 5% by volume, or substantially oxygen-free), or in a high-oxygen atmosphere with an oxygen concentration of more than 21% by volume (e.g., 22% by volume, 30% by volume, or 50% by volume). The exposure illuminance can be appropriately set, and is usually 1000 W / m ２ ~100000W / m ２ (For example, 5000 W / m ２ , 15000W / m ２ , or 35,000 W / m ２ The oxygen concentration and exposure illuminance may be appropriately combined. For example, an oxygen concentration of 10% by volume and an illuminance of 10,000 W / m ２ , oxygen concentration 35% by volume, illuminance 20,000 W / m ２etc.

[0245] Next, the unexposed portions of the composition layer are developed and removed to form a pattern (pixels). The unexposed portions of the composition layer can be developed and removed using a developer. As a result, the unexposed portions of the composition layer in the exposure step are dissolved into the developer, leaving only the photocured portions. The temperature of the developer is preferably, for example, 20 to 30°C. The development time is preferably 20 to 180 seconds. In addition, to improve residue removability, the process of shaking off the developer every 60 seconds and then supplying fresh developer may be repeated several times.

[0246] Examples of the developer include organic solvents and alkaline developers, and alkaline developers are preferably used. Regarding the developer and the washing (rinsing) method after development, the developer and washing method described in paragraph 0214 of WO 2022 / 085485 can be used.

[0247] After development and drying, it is preferable to perform additional exposure treatment or heating treatment (post-baking). The additional exposure treatment or post-baking is a post-development curing treatment to ensure complete curing. The heating temperature in post-baking is, for example, preferably 100 to 300°C, more preferably 200 to 270°C. Post-baking can be performed continuously or batchwise using a heating means such as a hot plate, convection oven (hot air circulation dryer), or 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 also be performed by the method described in Korean Patent Publication No. 10-2017-0122130.

[0248] Pattern formation by the dry etching method preferably includes the steps of forming a composition layer on a support using the composition of the present invention and curing the entire composition layer to form a cured layer, forming a photoresist layer on the cured layer, exposing the photoresist layer to light in a pattern and developing it to form a resist pattern, and dry etching the cured layer using an etching gas as a mask. In forming the photoresist layer, it is preferable to further perform a pre-bake treatment. In particular, the photoresist layer formation process preferably includes a heat treatment after exposure and a heat treatment after development (post-bake treatment). For details on pattern formation by the dry etching method, please refer to the description in paragraphs 0010 to 0067 of JP 2013-064993 A, the contents of which are incorporated herein by reference.

[0249] <Optical Filter> The optical filter of the present invention has the above-described film of the present invention. Types of optical filters include color filters, infrared cut filters, and infrared transmission filters, and a color filter is preferred. The color filter preferably has the film of the present invention as its pixel, more preferably has the film of the present invention as a color pixel, and even more preferably has the film of the present invention as a red pixel.

[0250] The optical filter may have a protective layer provided on the surface of the film of the present invention. By providing a protective layer, various functions can be imparted, such as oxygen blocking, low reflectivity, hydrophilicity / hydrophobicity, and blocking of light of specific wavelengths (ultraviolet rays, infrared rays, etc.). 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 applying a resin composition for forming the protective layer, a chemical vapor deposition method, and a method of attaching a molded resin with an adhesive. 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, fluororesin, polyacrylonitrile resin, cellulose resin, Si, C, W, Al ２ O ３ , Mo, SiO ２ , Si ２ N ４ For example, in the case of a protective layer intended to block oxygen, the protective layer may contain a polyol resin and SiO ２ and Si ２ N ４ In the case of a protective layer intended to reduce reflection, the protective layer preferably contains a (meth)acrylic resin and a fluorine resin.

[0251] When forming a protective layer by applying a resin composition, known methods such as spin coating, casting, screen printing, and inkjet printing can be used as the method for applying the resin composition. Known organic solvents (e.g., propylene glycol 1-monomethyl ether 2-acetate, cyclopentanone, ethyl lactate, etc.) can be used as the organic solvent contained in the resin composition. When forming the protective layer 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.

[0252] The protective layer may contain additives such as organic or inorganic fine particles, absorbers for light of specific wavelengths (e.g., ultraviolet light, infrared light, etc.), refractive index adjusters, antioxidants, adhesives, and surfactants, as needed. Examples of organic or inorganic fine particles include polymeric fine particles (e.g., silicone resin fine particles, polystyrene fine particles, and 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 absorbers for light of specific wavelengths can be used. The content of these additives can be adjusted as appropriate, but is preferably 0.1 to 70% by mass, and more preferably 1 to 60% by mass, of the total mass of the protective layer.

[0253] As the protective layer, the protective layers described in paragraphs 0073 to 0092 of JP-A-2017-151176 can also be used.

[0254] The optical filter may have a structure in which each pixel is embedded in a space partitioned by partition walls, for example, in a grid pattern.

[0255] <Solid-state imaging device> The solid-state imaging device of the present invention has the above-described film of the present invention. The configuration of the solid-state imaging device is not particularly limited as long as it has the film of the present invention and functions as a solid-state imaging device, but examples thereof include the following configurations.

[0256] The substrate includes 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 transfer electrodes made of polysilicon or the like. A light-shielding film is formed on the photodiodes and transfer electrodes, with only the light-receiving portions of the photodiodes exposed. A device protection film made of silicon nitride or the like is formed on the light-shielding film so as to cover the entire light-shielding film and the light-receiving portions of the photodiodes. A color filter is also provided on the device protection film. Furthermore, the device protection film may include a light-collecting means (e.g., a microlens, etc.; the same applies hereinafter) below the color filter (on the side closer to the substrate), or on the color filter. The color filter may have a structure in which each color pixel is embedded in a space partitioned by partition walls, for example, in a grid pattern. In this case, the partition walls preferably have a lower refractive index than the color pixels. 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. Furthermore, as shown in JP 2019-211559 A, an ultraviolet absorbing layer may be provided within the structure of the solid-state imaging element to improve light resistance. An imaging device equipped with the solid-state imaging element of the present invention can be used for digital cameras, electronic devices with imaging functions (such as mobile phones), as well as in-vehicle cameras and surveillance cameras.

[0257] <Image Display Device> The image display device of the present invention has the above-described film of the present invention. Examples of image display devices include liquid crystal display devices and organic electroluminescence display devices. Definitions of image display devices and details of each image display device are described, for example, in "Electronic Display Devices" (written by Akio Sasaki, published by Kogyo Chosakai Co., Ltd. in 1990) and "Display Devices" (written by Nobuaki Ibuki, published by Sangyo Tosho Co., Ltd. in 1989). Liquid crystal display devices are described, for example, in "Next Generation Liquid Crystal Display Technology" (edited by Tatsuo Uchida, published by Kogyo Chosakai Co., Ltd. in 1994). There are no particular limitations on the liquid crystal display device to which the present invention can be applied, and the present invention can be applied to various types of liquid crystal display devices described in the above-mentioned "Next Generation Liquid Crystal Display Technology."

[0258] The present invention will be explained in more detail below with reference to examples. The materials, amounts used, ratios, treatment details, treatment procedures, etc. shown in the following examples can be changed as appropriate 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. In addition, in the structural formula shown below, iPr represents an isopropyl group.

[0259] <Preparation of Dispersion> (Formulation 1) A mixture of 15 parts by mass in total of pigment and Derivative 1 in terms of solid content, 0.5 parts by mass of Derivative 2 in terms of solid content, 4.5 parts by mass of dispersant in terms of solid content, and 80 parts by mass of solvent was mixed and dispersed for 3 hours using a bead mill (zirconia beads 0.1 mm diameter). Then, using a high-pressure disperser NANO-3000-10 equipped with a pressure reducing mechanism (manufactured by Nippon BEE Co., Ltd.), the mixture was mixed and dispersed at a pressure of 2000 kg / cm. ２ The dispersion treatment was carried out under the conditions of a flow rate of 500 g / min. This dispersion treatment was repeated a total of 10 times to obtain a dispersion liquid. The pigment, derivative, dispersant, and solvent used were the materials shown in the table below.

[0260] (Formulation 2) A mixture of 15 parts by mass in total of the pigment and Derivative 1 in terms of solid content, 0.3 parts by mass of Derivative 2 in terms of solid content, 4.7 parts by mass of a dispersant in terms of solid content, and 80 parts by mass of a solvent was mixed and dispersed for 3 hours using a bead mill (zirconia beads 0.1 mm diameter). Then, using a high-pressure disperser NANO-3000-10 equipped with a pressure reducing mechanism (manufactured by Nippon BEE Co., Ltd.), the mixture was mixed and dispersed at a pressure of 2000 kg / cm. ２ The dispersion treatment was carried out under the conditions of a flow rate of 500 g / min. This dispersion treatment was repeated a total of 10 times to obtain a dispersion liquid. The pigment, derivative, dispersant, and solvent used were the materials shown in the table below.

[0261] (Formulation 3) A mixture of 15 parts by mass in total of the pigment and derivative 1 in terms of solid content, 1.2 parts by mass of derivative 2 in terms of solid content, 3.8 parts by mass of a dispersant in terms of solid content, and 80 parts by mass of a solvent was mixed and dispersed for 3 hours using a bead mill (zirconia beads 0.1 mm diameter). Then, using a high-pressure disperser NANO-3000-10 equipped with a pressure reducing mechanism (manufactured by Nippon BEE Co., Ltd.), the mixture was mixed and dispersed at a pressure of 2000 kg / cm. ２ The dispersion treatment was carried out under the conditions of a flow rate of 500 g / min. This dispersion treatment was repeated a total of 10 times to obtain a dispersion liquid. The pigment, derivative, dispersant, and solvent used were the materials shown in the table below.

[0262]

[0263] The details of the materials listed with abbreviations in the table above are as follows: (Pigments) P-1: C.I. Pigment Green 36 (phthalocyanine compound, green pigment) P-2: C.I. Pigment Green 58 (phthalocyanine compound, green pigment) P-3: C.I. Pigment Yellow 139 (isoindoline compound, yellow pigment) P-4: C.I. Pigment Yellow 150 (azo compound, yellow pigment) P-5: C.I. Pigment Yellow 185 (isoindoline compound, yellow pigment) P-6: C.I. Pigment Red 254 (diketopyrrolopyrrole compound, red pigment) P-7: C.I. Pigment Red 272 (diketopyrrolopyrrole compound, red pigment) P-8: C.I. Pigment Blue 15:6 (phthalocyanine compound, blue pigment) P-9: C.I. Pigment Violet 23 (dioxazine compound, purple pigment) P-10: Compound having the following structure P-11: C.I. Pigment Yellow 129 (azomethine compound, yellow pigment)

[0264] (Derivatives) Syn-A1: Compound having the following structure (compound having a dye structure and an acid group, molecular weight 750) Syn-A2: Compound having the following structure (compound having a dye structure and an acid group, molecular weight 363) Syn-A3: Compound having the following structure (compound having a dye structure and an acid group, molecular weight 650) Syn-A4: Compound having the following structure (compound having a dye structure and an acid group, molecular weight 432) Syn-A5: Compound having the following structure (compound having a dye structure and an acid group, molecular weight 2000) Syn-B1: Compound having the following structure (compound having three amino groups, molecular weight 146, amine value 1145.7 mg KOH / g) Syn-B2: Compound having the following structure (compound having four amino groups, molecular weight 178, amine value 1261.3 mg KOH / g) Syn-B3: Compound having the following structure (compound having five amino groups, molecular weight 189, amine value 1075 mg KOH / g) Syn-B4: Epomin SP-003 (manufactured by Nippon Shokubai Co., Ltd., compound having two or more amino groups, polyethyleneimine, molecular weight 300, amine value 934.7 mg KOH / g, solids concentration 30 mass propylene glycol monomethyl ether solution) Syn-B5: Epomin SP-006 (manufactured by Nippon Shokubai Co., Ltd., a compound having two or more amino groups, polyethyleneimine, molecular weight 600, amine value 903.8 mg KOH / g, solid content concentration 30 mass propylene glycol monomethyl ether solution) Syn-B6: Epomin SP-012 (manufactured by Nippon Shokubai Co., Ltd., a compound having two or more amino groups, polyethyleneimine, molecular weight 1200, amine value 894.7 mg KOH / g, solid content concentration 30 mass propylene glycol monomethyl ether solution)

[0265] (Dispersant) D-1: Resin having 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. Resin having a polyester structure and an acid group, weight average molecular weight of 21085, acid value of 74.7 mgKOH / g) D-2: Resin having the following structure (the number attached to the main chain is in moles, and the number attached to the side chain is the number of repeating units. Resin having a polyester structure and acid groups, weight average molecular weight 25764, acid value 48.7 mgKOH / g) D-3: Compound having the following structure (the number next to the repeating unit indicates the number of repeating units. Compound having a polyether structure and an acid group, weight average molecular weight of 2613, acid value of 74.7 mgKOH / g) D-5: Basic graft polymer (a resin synthesized by the method described in Synthesis Example 9 of Japanese Patent No. 5,953,380 (living radical polymerization of a macromonomer, which is a reaction product of polyethylene glycol monopropylene glycol monomethyl ether monoamine (molecular weight 2,000) and isocyanatoethyl methacrylate (weight average molecular weight 155.15, manufactured by Showa Denko K.K., trade name Karenz MOI) / dimethylaminoethyl methacrylate / methyl methacrylate), a resin having a polyether structure and a basic group, weight average molecular weight 24,200, number average molecular weight 17,300, and an amine value of 40.0 mg KOH / g)

[0266] (Solvent) S-1: Propylene glycol monomethyl ether acetate (PGMEA)

[0267] <Preparation of Compositions> Each composition was prepared by mixing the materials in the proportions of formulations 1 to 20 shown below and filtering through a nylon filter with a pore size of 0.45 μm (manufactured by Nippon Pall Co., Ltd.) In Examples 80, 81, and 94 in which additives were blended, 0.1 parts by mass of the additives shown in the table below were further blended.

[0268]

[0269]

[0270] The details of the materials indicated by the abbreviations in the table showing the formulation of the above composition are as follows:

[0271] (Dispersion) Dispersion 1 to 70, C1 to C5: Dispersion 1 to 70, C1 to C5 described above

[0272] (Monomer (polymerizable compound)) M-1: a mixture of compounds having the following structure (a mixture of the compound on the left (a hexafunctional (meth)acrylate compound) and the compound on the right (a pentafunctional (meth)acrylate compound) in a molar ratio of 7:3) M-2: Compound of the following structure M-3: Compound having the following structure

[0273] (Photopolymerization initiator) I-1: Compound having the following structure I-2: Compound of the following structure I-3: Compound of the following structure

[0274] (Binder) B-1: 30% by mass PGMEA solution of a resin having 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. Resin having a polyester structure and an acid group, weight average molecular weight 18,300, acid value 61.8 mgKOH / g) B-2: 30% by mass PGMEA solution of a resin having 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. Resin having a polyester structure and acid groups, weight average molecular weight 19143, acid value 94.7 mgKOH / g) B-3: 30% by mass PGMEA solution of a resin having 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. Resin having a polyester structure and acid groups, weight-average molecular weight of 20,000, acid value of 70.1 mgKOH / g) B-4: 20% by mass PGMEA solution of a resin having 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. Resin having a polyester structure and acid groups, weight average molecular weight 10424, acid value 44.3 mgKOH / g, amine value 40.0 mgKOH / g) B-5: A 20% by mass solution (solvent: PGMEA:PGME) mixed solution of a resin having 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. Resin having a polyester structure and an acid group, weight average molecular weight 20903, acid value 36.0 mgKOH / g, amine value 47.0 mgKOH / g) in a ratio of 9:1) B-6: 30% by mass PGMEA solution of a resin having the following structure (the numerical values ​​attached to the main chain are molar ratios; weight average molecular weight 12073, acid value 195.4 mgKOH / g)

[0275] (Surfactant) Su-1: Compound having the following structure

[0276] (Polymerization inhibitor) In-1: Compound having the following structure

[0277] (Additive) C-1: Compound having the following structure C-2: Compound of the following structure

[0278] (Solvents) S-1: Propylene glycol monomethyl ether acetate (PGMEA) S-2: Propylene glycol monomethyl ether (PGME) S-3: Cyclopentanone

[0279] <Evaluation> (Storage Stability) The viscosity (mPa s) of the composition immediately after production was measured using an "RE-85L" manufactured by Toki Sangyo Co., Ltd. After the measurement, the composition was allowed to stand at 45°C, shielded from light, for 3 days, and the viscosity (mPa s) was measured again. The storage stability was evaluated based on the difference in viscosity (ΔVis) before and after the standing, according to the following evaluation criteria. The smaller the viscosity difference (ΔVis) value, the better the storage stability of the composition. All of the viscosity measurements were performed in a laboratory where the temperature and humidity were controlled to 22±5°C and 60±20%, with the temperature of the composition adjusted to 25°C. -Evaluation criteria- 4: ΔVis was 0.2 mPa·s or less 3: ΔVis was more than 0.2 mPa·s and 0.3 mPa·s or less 2: ΔVis was more than 0.3 mPa·s and 0.5 mPa·s or less 1: ΔVis was more than 0.5 mPa·s

[0280] (Brightness Unevenness) CT-4000 (manufactured by FUJIFILM Electronic Materials Co., Ltd.) was applied to a glass substrate by spin coating to a film thickness of 0.1 μm, and heated using a hot plate at 220° C. for 1 hour to form an underlayer. Each composition was applied to the glass substrate with the underlayer by spin coating, and then heated using a hot plate at 100° C. for 2 minutes to obtain a composition layer with a thickness of 0.5 μm. This composition layer was irradiated with light having a wavelength of 365 nm at an exposure dose of 500 mJ / cm. ２The substrate was exposed to light at 1000 K. Then, a hot plate was used to post-bake the substrate at 220°C for 300 seconds to form a film. The luminance distribution of the glass substrate (evaluation substrate) on which this film was formed was analyzed using the following method, and the luminance unevenness was evaluated based on the number of pixels whose deviation from the average was ±10% or more. The luminance distribution measurement method is described below. The evaluation substrate was placed between the observation lens and light source of an optical microscope, and light was irradiated toward the observation lens. The transmitted light state was observed using an optical microscope MX-50 (manufactured by Olympus Corporation) equipped with a digital camera. Photographs of five arbitrarily selected regions of the film surface were taken. The luminance of the photographed images was quantified as a density distribution of 256 gradations from 0 to 255 and saved. The luminance distribution was analyzed from this image, and the luminance unevenness was evaluated based on the number of pixels whose deviation from the average exceeded ±10%. The evaluation criteria are as follows: 4: The number of pixels whose deviation from the average exceeded ±10% was 3,000 or less. 3: The number of pixels that deviate from the average by more than ±10% is more than 3,000 and not more than 5,000. 2: The number of pixels that deviate from the average by more than ±10% is more than 5,000 and not more than 15,000. 1: The number of pixels that deviate from the average by more than ±10% is more than 15,000.

[0281] (Development Residue) An underlayer-forming composition (CT-4000, manufactured by Fujifilm Electronic Materials Co., Ltd.) was applied to an 8-inch (20.32 cm) silicon wafer using a spin coater so that the thickness after post-baking would be 0.1 μm, and the wafer was heated at 220° C. for 300 seconds using a hot plate to form an underlayer, thereby obtaining a silicon wafer (support) with an underlayer. Next, each composition was applied by spin coating so that the film thickness after post-baking would be 0.62 μm. Next, the wafer was heated at 100° C. for 2 minutes using a hot plate. Next, an i-line stepper exposure system FPA-3000i5+ (manufactured by Canon Inc.) was used to expose the wafer to 1000 mJ / cm of light with a wavelength of 365 nm. ２The silicon wafer with the exposed coating film formed thereon was exposed through a mask with a 1.0 μm square dot pattern at an exposure dose of 1000 μm. Next, the silicon wafer with the exposed coating film formed thereon was placed on the horizontal rotating table of a spin-shower developer (DW-30 model, manufactured by Chemitronics Corporation) and subjected to puddle development at 23°C for 60 seconds using a 60% diluted solution of CD-2000 (manufactured by Fujifilm Electronic Materials Co., Ltd.). The silicon wafer was then fixed to the horizontal rotating table using a vacuum chuck. While rotating the silicon wafer at 50 rpm using a rotating device, pure water was supplied in shower form from a spray nozzle from above the center of rotation to perform a rinse treatment, followed by spray drying. Further, a heat treatment (post-bake) was performed for 300 seconds using a hot plate at 200°C to form a pattern (pixels). The silicon wafer with the formed pixels was observed with a scanning electron microscope (SEM) (magnification 10,000x), and development residue was evaluated according to the following evaluation criteria. -Evaluation criteria- 4: No residue was found outside the pixel formation area (unexposed area) 3: A very small amount of residue was found outside the pixel formation area (unexposed area), but it was not a problem in practical use 2: A small amount of residue was found outside the pixel formation area (unexposed area), but it was not a problem in practical use 1: Significant residue was found outside the pixel formation area (unexposed area)

[0282]

[0283]

[0284]

[0285]

[0286] As shown in the above table, the compositions of the examples were excellent in the evaluations of storage stability, brightness unevenness and development residue.

[0287] The films obtained from the compositions described in the examples can be suitably used in optical filters, solid-state imaging devices, and image display devices.

Claims

1. A composition comprising: pigment A; compound B having at least one structure selected from a pigment structure, an aromatic ring, and a heteroaromatic ring, and an acid group, and having a molecular weight of 122 or more and less than 2000; compound C having two or more amino groups in one molecule and a molecular weight of 60 or more and less than 2000; and compound D having at least one structure selected from a polyester structure and a polyether structure, and at least one group selected from an acid group and a basic group, and having a weight average molecular weight of 2000 to 30000.

2. The composition of claim 1, wherein compound C is polyethyleneimine.

3. The composition according to claim 1, wherein compound C is a compound having a heteroaromatic ring.

4. The composition according to any one of claims 1 to 3, wherein the amine value of said compound C is 800 mg KOH / g or more.

5. The composition according to any one of claims 1 to 3, comprising 10 to 150 parts by mass of said compound C relative to 100 parts by mass of said compound B.

6. The composition according to any one of claims 1 to 3, comprising 5 to 15 parts by mass of said compound B, 2 to 8 parts by mass of said compound C, and 30 to 50 parts by mass of said compound D relative to 100 parts by mass of said pigment A.

7. The composition according to any one of claims 1 to 3, further comprising a polymerizable compound and a photopolymerization initiator.

8. The composition according to claim 7, wherein the content of said pigment A in the total solid content of said composition is 50 mass % or more.

9. The composition according to any one of claims 1 to 3, wherein the pigment A includes at least one pigment selected from the group consisting of diketopyrrolopyrrole pigments and phthalocyanine pigments.

10. A film made using the composition according to any one of claims 1 to 3.

11. An optical filter having the film according to claim 10.

12. A solid-state imaging device having the film according to claim 10.

13. An image display device having the film according to claim 10.

Images