WO2022196401A1 - 着色組成物、硬化膜、カラーフィルタおよび表示装置 - Google Patents
着色組成物、硬化膜、カラーフィルタおよび表示装置 Download PDFInfo
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- WO2022196401A1 WO2022196401A1 PCT/JP2022/009501 JP2022009501W WO2022196401A1 WO 2022196401 A1 WO2022196401 A1 WO 2022196401A1 JP 2022009501 W JP2022009501 W JP 2022009501W WO 2022196401 A1 WO2022196401 A1 WO 2022196401A1
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- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- QBDSZLJBMIMQRS-UHFFFAOYSA-N p-Cumylphenol Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=CC=C1 QBDSZLJBMIMQRS-UHFFFAOYSA-N 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 229940110337 pigment blue 1 Drugs 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001281 polyalkylene Chemical group 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 229940116423 propylene glycol diacetate Drugs 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- MCSKRVKAXABJLX-UHFFFAOYSA-N pyrazolo[3,4-d]triazole Chemical compound N1=NN=C2N=NC=C21 MCSKRVKAXABJLX-UHFFFAOYSA-N 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000012487 rinsing solution Substances 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- PMJMHCXAGMRGBZ-UHFFFAOYSA-N subphthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(=N3)N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C3=N1 PMJMHCXAGMRGBZ-UHFFFAOYSA-N 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 239000001017 thiazole dye Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000005000 thioaryl group Chemical group 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- JOUDBUYBGJYFFP-FOCLMDBBSA-N thioindigo Chemical compound S\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2S1 JOUDBUYBGJYFFP-FOCLMDBBSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- ZWYDDDAMNQQZHD-UHFFFAOYSA-L titanium(ii) chloride Chemical compound [Cl-].[Cl-].[Ti+2] ZWYDDDAMNQQZHD-UHFFFAOYSA-L 0.000 description 1
- HTSABYAWKQAHBT-UHFFFAOYSA-N trans 3-methylcyclohexanol Natural products CC1CCCC(O)C1 HTSABYAWKQAHBT-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical group 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000001392 ultraviolet--visible--near infrared spectroscopy Methods 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 229940042596 viscoat Drugs 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B11/00—Diaryl- or thriarylmethane dyes
- C09B11/28—Pyronines ; Xanthon, thioxanthon, selenoxanthan, telluroxanthon dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
- C09B23/04—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B47/00—Porphines; Azaporphines
- C09B47/04—Phthalocyanines abbreviation: Pc
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/62—Metallic pigments or fillers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
Definitions
- the present invention relates to coloring compositions. More particularly, it relates to a coloring composition used for forming blue pixels of a color filter.
- the present invention also relates to a cured film, a color filter and a display device using the coloring composition.
- Patent Document 1 describes producing a color filter using a coloring composition containing a blue pigment, a specific xanthene compound, a resin, a polymerizable compound, and a photopolymerization initiator.
- color filters are sometimes formed on members with low heat resistance (for example, organic semiconductor elements such as organic electroluminescence display elements). Since such a member has low heat resistance, it is desirable to suppress thermal damage to the support by forming a cured film used for a color filter or the like by a low-temperature process of, for example, 150° C. or less.
- members with low heat resistance for example, organic semiconductor elements such as organic electroluminescence display elements. Since such a member has low heat resistance, it is desirable to suppress thermal damage to the support by forming a cured film used for a color filter or the like by a low-temperature process of, for example, 150° C. or less.
- an object of the present invention is to provide a colored composition capable of forming a cured film with excellent light resistance.
- Another object of the present invention is to provide a cured film, a color filter and a display device using the coloring composition described above.
- the present invention provides the following.
- a coloring composition containing a coloring agent and a compound having an alicyclic epoxy group The colored composition has an absorbance of 17 or more with respect to light with a wavelength of 535 nm when the absorbance with respect to light with a wavelength of 445 nm is 1.
- the coloring composition according to ⁇ 1>, wherein the content of the coloring agent in the total solid content of the coloring composition is 29 to 55% by mass.
- ⁇ 4> The coloring composition according to any one of ⁇ 1> to ⁇ 3>, wherein the epoxy group value of the total solid content of the coloring composition is 0.2 to 2.0 mmol/g.
- the compound having an alicyclic epoxy group contains at least one selected from repeating units having a group represented by formula (I) and repeating units having a group represented by formula (II).
- * represents a bond.
- ⁇ 6> The coloring composition according to any one of ⁇ 1> to ⁇ 5>, wherein the coloring agent contains a pigment and a dye.
- ⁇ 7> The coloring composition according to ⁇ 6>, which contains 14.5 to 140 parts by mass of the dye with respect to 100 parts by mass of the pigment.
- ⁇ 8> The coloring composition according to ⁇ 6> or ⁇ 7>, wherein the dye contains at least one selected from xanthene dyes and pyrromethene dyes.
- ⁇ 9> The colored composition according to any one of ⁇ 6> to ⁇ 8>, wherein the pigment comprises a blue pigment.
- the coloring agent comprises Color Index Pigment Blue-15:6.
- ⁇ 12> The colored composition according to any one of ⁇ 1> to ⁇ 11>, further comprising a polymerizable compound and a photopolymerization initiator.
- the polymerizable compound includes a polymerizable compound having 3 or more ethylenically unsaturated bond-containing groups.
- ⁇ 14> The coloring composition according to any one of ⁇ 1> to ⁇ 13>, which is a coloring composition for forming blue pixels of a color filter.
- ⁇ 15> The colored composition according to any one of ⁇ 1> to ⁇ 14>, which is a colored composition for a display device.
- ⁇ 16> The colored composition according to any one of ⁇ 1> to ⁇ 15>, which is used to form a cured film at a temperature of 150° C. or less throughout the entire process.
- ⁇ 17> A cured film formed from the colored composition according to any one of ⁇ 1> to ⁇ 16>.
- ⁇ 18> A color filter having the cured film according to ⁇ 17>.
- ⁇ 19> A display device comprising the cured film according to ⁇ 17>.
- the present invention it is possible to provide a colored composition capable of forming a cured film with excellent light resistance. Moreover, the present invention can provide a cured film, a color filter and a display device using the coloring composition.
- the notation that does not describe substitution and unsubstituted includes not only a group (atomic group) having no substituent but also a group (atomic group) having a substituent.
- an "alkyl group” includes not only an alkyl group having no substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group).
- exposure includes not only exposure using light but also drawing using particle beams such as electron beams and ion beams, unless otherwise specified.
- Light used for exposure generally includes actinic rays or radiation such as emission line spectra of mercury lamps, far ultraviolet rays represented by excimer lasers, extreme ultraviolet rays (EUV light), X-rays, and electron beams.
- a numerical range represented by "to” means a range including the numerical values before and after "to” as lower and upper limits.
- total solid content refers to the total mass of all components of the composition excluding the solvent.
- a pigment means a coloring agent that is difficult to dissolve in a solvent.
- a dye means a colorant that is easily soluble in a solvent.
- (meth)acrylate represents both or either acrylate and methacrylate
- (meth)acryl represents both or either acrylic and methacrylic
- (meth) ) Allyl represents both or either of allyl and methallyl
- (meth)acryloyl represents both or either of acryloyl and methacryloyl.
- process includes not only an independent process, but also when the intended action of the process is achieved even if it cannot be clearly distinguished from other processes. .
- the weight average molecular weight (Mw) and number average molecular weight (Mn) are defined as polystyrene equivalent values measured by gel permeation chromatography (GPC).
- the coloring composition of the present invention is a coloring composition containing a coloring agent and a compound having an alicyclic epoxy group,
- the colored composition has an absorbance of 17 or more with respect to light with a wavelength of 535 nm, where 1 is the absorbance with respect to light with a wavelength of 445 nm.
- a cured film with excellent light resistance can be formed.
- a low temperature of 150° C. or lower preferably 120° C. or lower, more preferably 100° C. or lower
- a cured film having excellent light resistance can be formed.
- the coloring composition has the specific spectral characteristics and contains a compound having an alicyclic epoxy group
- the curing of the coloring composition progresses rapidly, As a result, it is presumed that a sufficiently cured film can be formed even by heating at a relatively low temperature.
- the inclusion of a compound having an alicyclic epoxy group improves the rigidity of the resulting cured film, thereby more effectively suppressing deterioration of the cured film due to light irradiation.
- the colored composition has the above spectral characteristics, so that the cured product derived from the compound having an alicyclic epoxy group and the , unreacted alicyclic epoxy groups and the like preferentially react with the generated active species, and it is presumed that deterioration of the colorant contained in the cured film can be suppressed. For these reasons, it is presumed that the colored composition of the present invention can form a cured film having excellent light resistance.
- this coloring composition satisfies the predetermined absorbance characteristics described above, thereby forming a cured film suitable for blue pixels having spectral characteristics excellent in color separation from other colors such as green. can be done.
- the coloring composition of the present invention has an absorbance of 17 or more, preferably 19 or more, and more preferably 21 or more, with respect to light of a wavelength of 535 nm, where the absorbance of light of a wavelength of 445 nm is 1.
- the upper limit is not particularly limited, it can be 35 or less.
- the absorbance value may be a value measured in a solution state, or may be a value of a cured film formed using a coloring composition.
- the coloring composition is applied on a support such as a glass substrate by a method such as spin coating, heated at 100 ° C. for 120 seconds using a hot plate or the like, and then hot. It is preferable to measure using a cured film having a thickness of 2.0 ⁇ m formed by heating at 150° C. for 5 minutes using a plate or the like and allowing it to cool to room temperature.
- the cured film When a cured film having a thickness of 2.0 ⁇ m is formed using the coloring composition of the present invention, the cured film has an absorbance of 17 for light with a wavelength of 535 nm when the absorbance for light with a wavelength of 445 nm is 1. It is preferably 19 or more, more preferably 21 or more. Although the upper limit is not particularly limited, it can be 35 or less.
- the cured film is preferably a cured film having a thickness of 2.0 ⁇ m formed by the same method as the measurement using the cured film described above.
- the cured film preferably has a transmittance peak top in the wavelength range of 440 to 460 nm.
- the aforementioned peak top preferably exists in the wavelength range of 442 to 458 nm, more preferably in the wavelength range of 445 to 455 nm.
- the cured film preferably has a maximum transmittance of 74% or more, more preferably 77% or more, and even more preferably 80% or more for light in the wavelength range of 440 to 460 nm.
- the average transmittance of the cured film to light in the wavelength range of 440 to 460 nm is preferably 70% or more, more preferably 74% or more, and even more preferably 78% or more.
- the transmittance of the cured film to light with a wavelength of 445 nm is preferably 74% or more, more preferably 77% or more, and even more preferably 80% or more.
- the transmittance of the cured film to light with a wavelength of 535 nm is preferably 12% or less, more preferably 10% or less, and even more preferably 8% or less.
- the cured film has an average transmittance of 10% or less, more preferably 8% or less, and even more preferably 6% or less for light in the wavelength range of 530 to 550 nm.
- the epoxy group value of the total solid content of the coloring composition of the present invention is preferably 0.2 to 5.0 mmol/g, more preferably 0.2 to 2.0 mmol/g.
- the upper limit is preferably 4.8 mmol/g or less, more preferably 4.5 mmol/g or less, even more preferably 3.0 mmol/g or less, even more preferably 2.0 mmol/g or less, and 1.8 mmol/g or less. is particularly preferred, and 1.6 mmol/g or less is more particularly preferred.
- the lower limit is preferably 0.4 mmol/g or more, more preferably 0.6 mmol/g or more, and even more preferably 0.9 mmol/g or more.
- the epoxy group value of the total solid content of the coloring composition is calculated from the value derived from the raw material having an epoxy group among the raw materials that become the solid content of the coloring composition.
- the raw material having an epoxy group may include a compound having an alicyclic epoxy group, a resin containing a repeating unit having an alicyclic epoxy group, and a compound having an epoxy group separately from them. It preferably contains at least one of a compound having a formula epoxy group and a resin containing a repeating unit having a cycloaliphatic epoxy group. A compound having an alicyclic epoxy group and a resin containing a repeating unit having an alicyclic epoxy group will be described later.
- the epoxy value of the total solid content of the coloring composition can be measured by a method such as near-infrared spectroscopy or Raman spectroscopy.
- the coloring composition of the present invention can be preferably used as a coloring composition for forming pixels of color filters, and more preferably used as a coloring composition for forming blue pixels of color filters.
- the coloring composition of the present invention can be preferably used as a coloring composition for display devices. More specifically, it can be preferably used as a coloring composition for forming pixels of color filters for display devices, and more preferably used as a coloring composition for forming blue pixels of color filters for display devices.
- the type of display device is not particularly limited, but examples thereof include a display device having an organic semiconductor element as a light source, such as an organic electroluminescence display device.
- the coloring composition of the present invention can also be used as a coloring composition for solid-state imaging devices. More specifically, it can be preferably used as a coloring composition for pixel formation of color filters for solid-state imaging devices, and more preferably used as a coloring composition for forming blue pixels of color filters for solid-state imaging devices.
- the coloring composition of the present invention is also preferably used to form a cured film at a temperature of 150°C or less (preferably a temperature of 120°C or less) throughout the entire process.
- forming a cured film at a temperature of 150° C. or less throughout all steps means performing all of the steps of forming a cured film using a coloring composition at a temperature of 150° C. or less.
- all steps included in the method for producing a cured film can be applied at a temperature of 150° C. or less (preferably a temperature of 120° C. or less).
- the thickness of the cured film and pixels formed from the coloring composition of the present invention is preferably 0.5 to 3.0 ⁇ m.
- the lower limit is preferably 0.8 ⁇ m or more, more preferably 1.0 ⁇ m or more, and even more preferably 1.1 ⁇ m or more.
- the upper limit is preferably 2.5 ⁇ m or less, more preferably 2.0 ⁇ m or less, and even more preferably 1.8 ⁇ m or less.
- the line width (pattern size) of pixels formed by the coloring composition of the present invention is preferably 2.0 to 10.0 ⁇ m.
- the upper limit is preferably 7.5 ⁇ m or less, more preferably 5.0 ⁇ m or less, even more preferably 4.0 ⁇ m or less.
- the lower limit is preferably 2.25 ⁇ m or more, more preferably 2.5 ⁇ m or more, and even more preferably 2.75 ⁇ m or more.
- the coloring composition of the present invention will be described in detail below.
- the coloring composition of the present invention contains a coloring agent.
- Colorants include chromatic colorants such as blue colorants, purple colorants, red colorants, green colorants, yellow colorants, and orange colorants.
- the coloring agent contained in the coloring composition preferably contains at least one selected from a blue coloring agent and a purple coloring agent, and more preferably contains a blue coloring agent.
- the total content of the blue colorant and the purple colorant in the total amount of the colorant is preferably 50 to 100% by mass, more preferably 75 to 100% by mass, and 90 to 100% by mass. is more preferable.
- the colorant is substantially only blue colorant, or only blue colorant and violet colorant.
- the colorant when the colorant is substantially only a blue colorant, it means that the content of the blue colorant in the total amount of the colorant is 99% by mass or more, and is 99.9% by mass.
- the coloring agent is only a blue coloring agent.
- the colorant when the colorant is substantially only a blue colorant and a purple colorant, it means that the content of the blue colorant and the purple colorant in the total amount of the colorant is 99% by mass or more. In other words, it is preferably 99.9% by mass or more, and it is more preferable that the colorant is only a blue colorant and a purple colorant.
- the coloring agent may be a pigment or a dye.
- the amount of the pigment dissolved in 100 g of propylene glycol methyl ether acetate at 25° C. is preferably less than 0.01 g, more preferably less than 0.005 g, even more preferably less than 0.001 g.
- the amount of the dye dissolved in 100 g of propylene glycol methyl ether acetate at 25° C. is preferably 0.01 g or more, more preferably 0.5 g or more, and even more preferably 1 g or more.
- the average primary particle size of the pigment is preferably 1 to 200 nm.
- the lower limit is preferably 5 nm or more, more preferably 10 nm or more.
- the upper limit is preferably 180 nm or less, more preferably 150 nm or less, and even more preferably 100 nm or less.
- the primary particle diameter of the pigment can be determined from the image photograph obtained by observing the primary particles of the pigment with a transmission electron microscope. Specifically, the projected area of the primary particles of the pigment is obtained, and the corresponding circle equivalent diameter is calculated as the primary particle diameter of the pigment.
- the average primary particle size in the present invention is the arithmetic mean value of the primary particle sizes of 400 primary particles of the pigment. Further, the primary particles of the pigment refer to independent particles without agglomeration.
- the colorant preferably contains a pigment, and more preferably contains both a pigment and a dye because the cured film can achieve both high transmittance and high durability.
- the content of the pigment in the colorant is preferably 35% by mass or more, more preferably 40% by mass or more, and even more preferably 45% by mass or more.
- the content of the dye is preferably 14.5 to 140 parts by mass with respect to 100 parts by mass of the pigment, because it is possible to achieve both high transmittance and high solvent resistance.
- the lower limit is preferably 30 parts by mass or more, more preferably 50 parts by mass or more.
- the upper limit is preferably 120 parts by mass or less, more preferably 110 parts by mass or less.
- pigments examples include chromatic pigments such as blue pigments, purple pigments, red pigments, green pigments, yellow pigments, and orange pigments.
- the pigment contained in the coloring composition preferably contains at least one selected from a blue pigment and a violet pigment, and more preferably contains a blue pigment.
- the total content of the blue pigment and the purple pigment in the total amount of the pigment contained in the coloring composition is preferably 50 to 100% by mass, more preferably 75 to 100% by mass, 90 to More preferably 100% by mass, particularly preferably 95 to 100% by mass.
- a preferable aspect of the pigment contained in the coloring composition is an aspect in which the pigment is substantially composed only of a blue pigment. According to this aspect, a cured film having more excellent heat resistance can be obtained.
- the pigment when the pigment is substantially only a blue pigment, it means that the content of the blue pigment in the total amount of the pigment is 99% by mass or more, and is 99.9% by mass or more. is preferred, and it is more preferred that it contains only a blue pigment.
- the pigment contained in the coloring composition is an embodiment in which the pigment is substantially composed only of a blue pigment and a violet pigment.
- the crystal growth of the pigment in the coloring composition can be suppressed, and the storage stability of the coloring composition can be further improved.
- the pigment when the pigment is substantially only a blue pigment and a purple pigment, it means that the content of the blue pigment and the purple pigment in the total amount of the pigment is 99% by mass or more, and 99.9 It is preferably at least 10% by mass, and more preferably contains only a blue pigment and a violet pigment.
- the content of the purple pigment is preferably 1 to 60 parts by mass with respect to 100 parts by mass of the blue pigment.
- the lower limit is preferably 5 parts by mass or more, more preferably 10 parts by mass or more.
- the upper limit is preferably 50 parts by mass or less, more preferably 40 parts by mass or less.
- Blue pigments include Color Index (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, 88 and the like.
- an aluminum phthalocyanine compound having a phosphorus atom can be used as the blue pigment. Specific examples include compounds described in paragraph numbers 0022 to 0030 of JP-A-2012-247591 and paragraph number 0047 of JP-A-2011-157478.
- Blue pigments are C.I. I. Pigment Blue 15:3, 15:4 and 15:6 are preferred, and C.I. I. Pigment Blue 15:4, 15:6 is more preferred, and C.I. I. Pigment Blue 15:6 is particularly preferred.
- C.I. I. Pigment Violet 1 19, 23, 27, 32, 37, 42, 60, 61, etc.
- C.I. I. Pigment Violet 23 is preferred.
- red pigments diketopyrrolopyrrole compounds having at least one bromine atom substituted in the structure described in JP-A-2017-201384, diketopyrrolopyrroles described in paragraphs 0016 to 0022 of Japanese Patent No.
- 6248838 compounds diketopyrrolopyrrole compounds described in WO 2012/102399, diketopyrrolopyrrole compounds described in WO 2012/117965, brominated diketopyrrolopyrroles described in JP 2020-085947 compounds, naphthol azo compounds described in JP-A-2012-229344, red pigments described in JP-A-6516119, red pigments described in JP-A-6525101, paragraph number 0229 of JP-A-2020-090632 Brominated diketopyrrolopyrrole compound described, anthraquinone compound described in Korean Patent Publication No. 10-2019-0140741, anthraquinone compound described in Korean Patent Publication No.
- JP 2020-079396 Perylene compounds described in publications diketopyrrolopyrrole compounds described in paragraphs 0025 to 0041 of JP-A-2020-066702, and the like can also be used.
- a red pigment a compound having a structure in which an aromatic ring group in which a group having an oxygen atom, a sulfur atom or a nitrogen atom is bonded to an aromatic ring is bonded to a diketopyrrolopyrrole skeleton may be used. can.
- green pigment C.I. I. Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, 64, 65, 66 and the like.
- a halogenated zinc phthalocyanine pigment having an average number of halogen atoms of 10 to 14, an average number of bromine atoms of 8 to 12, and an average number of chlorine atoms of 2 to 5 per molecule.
- Specific examples include compounds described in International Publication No. 2015/118720.
- Phthalocyanine compounds, phthalocyanine compounds described in JP-A-2018-180023, compounds described in JP-A-2019-038958, aluminum phthalocyanine compounds described in JP-A-2020-070426, JP-A-2020-076995 Core-shell type dyes described, green pigments described in WO2020/045199, and the like can also be used.
- C.I. I. Pigment Orange 2 5, 13, 16, 17: 1, 31, 34, 36, 38, 43, 46, 48, 49, 51, 52, 55, 59, 60, 61, 62, 64, 71, 73, etc. is mentioned.
- Dyes include chromatic dyes such as blue dyes, purple dyes, red dyes, green dyes, yellow dyes, and orange dyes.
- the dye contained in the coloring composition preferably contains at least one selected from blue dyes and violet dyes. Further, the total content of the blue dye and the purple dye in the total amount of dyes contained in the coloring composition is preferably 50 to 100% by mass, more preferably 75 to 100% by mass, 90 to More preferably 100% by mass, particularly preferably 95 to 100% by mass.
- Dyes include xanthene dyes, pyrromethene dyes, triarylmethane dyes, anthraquinone dyes, cyanine dyes, squarylium dyes, quinophthalone dyes, phthalocyanine dyes, subphthalocyanine dyes, azo dyes, pyrazolotriazole dyes, isoindoline dyes, thiazole dyes, benz imidazolone dyes, perinone dyes, pyrrolopyrrole dyes, diketopyrrolopyrrole dyes, diiminium dyes, naphthalocyanine dyes, rylene dyes, dibenzofuranone dyes, merocyanine dyes, croconium dyes and oxonol dyes, xanthene dyes, pyrromethene dyes and Triarylmethane dyes are preferable, xanthene dyes and pyrromethene dyes are more preferable, and
- xanthene dyes examples include compounds represented by the following formula (XT).
- R xt1 to R xt4 each independently represent a hydrogen atom or a substituent
- R xt5 represents a substituent
- m represents an integer of 0-5.
- Z xt represents a counter anion. When Z xt is absent, at least one of R xt1 through R xt5 contains an anion.
- Substituents that can be taken by R xt1 to R xt4 include the groups exemplified for the substituent T described later and polymerizable groups.
- R xt1 and R xt2 , R xt3 and R xt4 , and R xt5 when m is 2 or more in formula (XT) are each independently bonded to each other to form a 5-, 6-, or 7-membered saturated ring. , or may form a 5-, 6- or 7-membered unsaturated ring.
- Examples of the ring to be formed include pyrrole ring, furan ring, thiophene ring, pyrazole ring, imidazole ring, triazole ring, oxazole ring, thiazole ring, pyrrolidine ring, piperidine ring, cyclopentene ring, cyclohexene ring, benzene ring, pyridine ring, Examples include a pyrazine ring and a pyridazine ring, preferably a benzene ring and a pyridine ring.
- the ring to be formed is a group that can be further substituted, it may be substituted with the substituents described as R xt1 to R xt5 , and when it is substituted with two or more substituents, Those substituents may be the same or different.
- R xt1 and R xt3 are each independently preferably an alkyl group or an aryl group, more preferably an aryl group.
- Rxt 2 and Rxt 4 are each independently preferably a hydrogen atom or an alkyl group, more preferably a hydrogen atom.
- the above alkyl group and aryl group may further have a substituent. Further substituents include the groups listed for the substituent T described later and the polymerizable groups.
- Z xt represents a counter anion.
- the counter anion may be an organic anion or an inorganic anion.
- the counter anion is preferably an organic anion.
- Counter anions include fluorine anions, chloride anions, bromine anions, iodine anions, cyanide ions, perchlorate anions, and non-nucleophilic anions.
- a non-nucleophilic anion is preferred from the viewpoint of heat resistance.
- Examples of counter anions include known non-nucleophilic anions described in paragraph 0075 of JP 2007-310315, the contents of which are incorporated herein.
- the term "non-nucleophilic" means the property of not nucleophilically attacking the dye by heating.
- the counter anion is preferably an imide anion (e.g., a bis(sulfonyl)imide anion), a tris(sulfonyl)methide anion, an anion having a boron atom, more preferably a bis(sulfonyl)imide anion and a tris(sulfonyl)methide anion, and a bis(sulfonyl) Imido anions are more preferred.
- an imide anion e.g., a bis(sulfonyl)imide anion
- a tris(sulfonyl)methide anion an anion having a boron atom
- an anion having a boron atom more preferably a bis(sulfonyl)imide anion and a tris(sulfonyl)methide anion
- a bis(sulfonyl) Imido anions are more preferred.
- Bis(sulfonyl)imide anions include anions represented by the following formula (AN1).
- Tris(sulfonyl)methide anions include anions represented by the following formula (AN2).
- R AN1 and R AN2 each independently represent a halogen atom or an alkyl group, and R AN1 and R AN2 may combine to form a ring;
- R AN3 to R AN5 each independently represent a halogen atom or an alkyl group, and R AN3 and R AN4 , R AN4 and R AN5 , or R AN3 and R AN5 are optionally forming a ring;
- Examples of the halogen atoms represented by R AN1 and R AN2 in formula (AN1) and the halogen atoms represented by R AN3 to R AN5 in formula (AN2) include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Atoms are preferred.
- the number of carbon atoms in the alkyl group represented by R AN1 and R AN2 in formula (AN1) and the alkyl group represented by R AN3 to R AN5 in formula (AN2) is preferably 1 to 10, more preferably 1 to 6, and 1 ⁇ 3 is more preferred.
- Alkyl groups include straight-chain, branched, and cyclic groups, preferably straight-chain or branched, and more preferably straight-chain.
- the alkyl group may have a substituent or may be unsubstituted.
- the alkyl group is preferably an alkyl group having a halogen atom as a substituent, and more preferably an alkyl group having a fluorine atom as a substituent (fluoroalkyl group).
- the fluoroalkyl group is preferably a perfluoroalkyl group.
- anion represented by formula (AN1) include the anions shown below.
- anion represented by formula (AN2) include the anions shown below.
- anions having a boron atom examples include tetrafluoroborate anions, tetraphenylborate anions, and tetraperfluorophenylborate anions.
- the molecular weight of the counter anion is preferably 100-1000, more preferably 200-500.
- the anion is preferably a carboxylate anion, a sulfonate anion, an anion containing a phosphorus atom, an imide anion, a methide anion and a borate anion, and the imide anion.
- methide anions and borate anions are more preferred, imide anions and methide anions are more preferred, and imide anions are particularly preferred.
- the imide anion a bis(sulfonyl)imide anion is preferred.
- the methide anion tris(sulfonyl)methide anion is preferred.
- R xt1 to R xt5 is a group containing a partial structure represented by formula (AZ-1) below, or contains a partial structure represented by formula (AZ-2) below. is preferably a group, more preferably a group containing a partial structure represented by formula (AZ-1).
- the wavy line in the above formula represents a bond with another atom or atomic group.
- R xt1 to R xt5 contains an anion
- at least one of R xt1 to R xt5 is a group substituted with formula (AZ-3).
- Lz 1 represents a single bond or a divalent linking group, preferably a single bond.
- the divalent linking group represented by Lz 1 includes an alkylene group having 1 to 6 carbon atoms, an arylene group having 6 to 12 carbon atoms, —O—, —S—, or a group consisting of combinations thereof.
- Lz 2 represents -SO 2 - or -CO-.
- G represents a carbon atom or a nitrogen atom.
- n1 represents 2 when G is a carbon atom, and represents 1 when G is a nitrogen atom.
- Rz 1 represents an alkyl group containing a fluorine atom or an aryl group containing a fluorine atom. When n1 is 2, two Rz 1 may be the same or different.
- the fluorine atom-containing alkyl group represented by Rz 1 preferably has 1 to 10 carbon atoms, more preferably 1 to 6 carbon atoms, and still more preferably 1 to 3 carbon atoms.
- the fluorine atom-containing aryl group represented by Rz 1 preferably has 6 to 20 carbon atoms, more preferably 6 to 14 carbon atoms, and even more preferably 6 to 10 carbon atoms.
- the alkyl group containing a fluorine atom and the aryl group containing a fluorine atom may further have a substituent. Examples of the substituent include the groups listed for the substituent T described later and the polymerizable group.
- R xt1 to R xt5 comprises an anion
- at least one of R xt1 to R xt5 is SO 3 — .
- Substituent T includes the following groups.
- Halogen atom e.g., fluorine atom, chlorine atom, bromine atom, iodine atom
- alkyl group preferably alkyl group having 1 to 30 carbon atoms
- alkenyl group preferably alkenyl group having 2 to 30 carbon atoms
- alkynyl group preferably an alkynyl group having 2 to 30 carbon atoms
- an aryl group preferably an aryl group having 6 to 30 carbon atoms
- an amino group preferably an amino group having 0 to 30 carbon atoms
- an alkoxy group preferably an 1 to 30 alkoxy groups
- aryloxy groups preferably aryloxy groups having 6 to 30 carbon atoms
- heteroaryloxy groups acyl groups (preferably acyl groups having 2 to 30 carbon atoms), alkoxycarbonyl groups (preferably is an alkoxycarbonyl group having 2 to 30 carbon atoms), an aryloxycarbonyl group
- the atoms or atomic groups constituting the salts include alkali metal ions (Li + , Na + , K + etc.), alkaline earth metal ions ( Ca 2+ , Mg 2+ , etc.), ammonium ions, imidazolium ions, pyridinium ions, phosphonium ions, and the like. These groups may have further substituents if they are substitutable groups. Examples of the substituent include the groups described for the substituent T described above.
- Examples of pyrromethene dyes include compounds represented by the formula (PM) and metal complex compounds formed from the compounds represented by the formula (PM) and metals or metal compounds.
- R pm1 to R pm6 each independently represent a hydrogen atom or a substituent
- R pm7 represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a heteroaryl group.
- Alkyl groups, aryl groups and heteroaryl groups may have substituents. Examples of the substituents represented by R pm1 to R pm6 and the substituents that the alkyl group, aryl group and heteroaryl group may have include the groups exemplified above for the substituent T and the polymerizable groups. .
- the metal or metal compound may be any metal atom or metal compound capable of forming a complex with the compound represented by the formula (PM), such as a divalent metal atom, a divalent metal oxide, Divalent metal hydroxides and divalent metal chlorides are included.
- a divalent metal atom such as a divalent metal atom, a divalent metal oxide, Divalent metal hydroxides and divalent metal chlorides are included.
- Zn, Mg, Si, Sn, Rh, Pt, Pd, Mo, Mn, Pb Cu, Ni, Co, Fe, B, AlCl, InCl, FeCl, TiCl2 , SnCl, SiCl2 , GeCl2 , TiO , VO, Si(OH) 2 and the like.
- triarylmethane dyes examples include compounds represented by the following formula (TP).
- R tp1 to R tp4 each independently represent a hydrogen atom, an alkyl group or an aryl group.
- R tp5 represents a hydrogen atom, an alkyl group, an aryl group or NR tp9 R tp10 (R tp9 and R tp10 represent a hydrogen atom, an alkyl group or an aryl group).
- R tp6 , R tp7 and R tp8 represent substituents.
- a, b and c represent an integer of 0-4. When a, b and c are 2 or more, R tp 6 , R tp7 and R tp8 may be linked to each other to form a ring.
- Ztp represents a counter anion. When Z tp is absent, at least one of R tp1 through R tp8 contains an anion.
- R tp1 to R tp4 are preferably a hydrogen atom, a linear alkyl group having 1 to 5 carbon atoms, a branched alkyl group having 3 to 5 carbon atoms or a phenyl group.
- R tp5 is preferably a hydrogen atom or NR tp9 R tp10 , more preferably NR tp9 R tp10 .
- R tp9 and R tp10 are preferably a hydrogen atom, a linear alkyl group having 1 to 5 carbon atoms, a branched alkyl group having 3 to 5 carbon atoms or a phenyl group.
- Substituents represented by R tp6 , R tp7 and R tp8 include the groups and polymerizable groups exemplified for the substituent T described above.
- Ztp represents a counter anion.
- Z tp is absent, at least one of R tp1 through R tp8 contains an anion.
- Counter anions include the counter anions described in formula (XT) above.
- examples of the anion include the anions described in the above formula (XT).
- the dye is preferably a compound having a polymerizable group.
- a cured film having better light resistance can be formed.
- polymerizable groups include ethylenically unsaturated bond-containing groups such as vinyl groups, allyl groups, and (meth)acryloyl groups, epoxy groups, and oxetanyl groups.
- the dye is preferably a dye multimer. This aspect also makes it possible to form a cured film having more excellent light resistance.
- a dye polymer is a dye compound having two or more dye structures in one molecule, preferably three or more dye structures.
- the upper limit is not particularly limited, but may be 100 or less.
- the weight average molecular weight (Mw) of the dye polymer is preferably 2000-50000.
- the lower limit is more preferably 3000 or more, and even more preferably 6000 or more.
- the upper limit is more preferably 30,000 or less, and even more preferably 20,000 or less.
- the dye multimer examples include a dye multimer having a repeating unit represented by formula (A) (hereinafter also referred to as dye multimer (A)), a dye multimer having a repeating unit represented by formula (B) ( hereinafter also referred to as dye multimer (B)), a dye multimer having a repeating unit represented by formula (C) (hereinafter also referred to as dye multimer (C)), a dye multimer represented by formula (D) (hereinafter also referred to as dye multimer (D)), preferably the dye multimer (A) or the dye multimer (D).
- A dye multimer having a repeating unit represented by formula (A)
- B dye multimer having a repeating unit represented by formula (B)
- dye multimer having a repeating unit represented by formula (C) hereinafter also referred to as dye multimer (C)
- dye multimer represented by formula (D) hereinafter also referred to as dye multimer (D)
- the dye multimer (A) contains a repeating unit represented by formula (A).
- the proportion of the repeating unit represented by the formula (A) is preferably 10% by mass or more, more preferably 20% by mass or more, and still more preferably 30% by mass or more of the total repeating units constituting the dye multimer (A). 50% by mass or more is particularly preferred.
- the upper limit can be 100% by mass or less, or 95% by mass or less.
- X1 represents a trivalent linking group
- L1 represents a single bond or a divalent linking group
- D1 represents a dye structure.
- the trivalent linking group represented by X 1 in formula (A) includes a poly(meth)acrylic linking group, a polyalkyleneimine linking group, a polyester linking group, a polyurethane linking group, a polyurea linking group, and a polyamide linking group.
- a linking group, a polyether-based linking group, a polystyrene-based linking group, a bisphenol-based linking group, a novolak-based linking group and the like can be mentioned, and a poly(meth)acrylic-based linking group is preferred.
- L1 in formula (A) represents a single bond or a divalent linking group.
- each R independently represents a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group.
- the number of carbon atoms in the alkylene group is preferably 1-30.
- the upper limit is more preferably 25 or less, even more preferably 20 or less.
- the lower limit is more preferably 2 or more, and still more preferably 3 or more.
- the alkylene group may be linear, branched or cyclic.
- the alkylene group may have a substituent or may be unsubstituted.
- the arylene group preferably has 6 to 20 carbon atoms, more preferably 6 to 12 carbon atoms.
- the arylene group may have a substituent or may be unsubstituted.
- the heterocyclic linking group is preferably a 5- or 6-membered ring.
- the heteroatom possessed by the heterocyclic linking group is preferably an oxygen atom, a nitrogen atom and a sulfur atom.
- the number of heteroatoms possessed by the heterocyclic linking group is preferably 1 to 3.
- the heterocyclic linking group may have a substituent or may be unsubstituted.
- Dye structures represented by D1 in formula ( A ) include xanthene dye structures, pyrromethene dye structures, triarylmethane dye structures, quinacridone dye structures, cyanine dye structures and anthraquinone dye structures. structure and a triarylmethane dye structure are preferred, and a xanthene dye structure is more preferred.
- the xanthene dye structure is preferably a residue obtained by removing one hydrogen atom from the compound represented by the above formula (XT).
- the pyrromethene dye structure is preferably a residue obtained by removing one hydrogen atom from the compound represented by the above formula (PM).
- the triarylmethane dye structure is preferably a residue obtained by removing one hydrogen atom from the compound represented by the above formula (TP).
- the dye multimer (A) may contain other repeating units in addition to the repeating unit represented by formula (A).
- Other repeating units include repeating units having a polymerizable group, repeating units having an acid group, and the like.
- polymerizable groups include ethylenically unsaturated bond-containing groups such as vinyl groups, (meth)allyl groups, and (meth)acryloyl groups.
- a carboxy group, a sulfo group, a phosphoric acid group, etc. are mentioned as an acid group.
- the proportion of repeating units having a polymerizable group is preferably 50% by mass or less of all repeating units constituting the dye multimer (A).
- the lower limit is preferably 1% by mass or more, more preferably 3% by mass or more.
- the upper limit is preferably 35% by mass or less, more preferably 30% by mass or less.
- the proportion of repeating units having an acid group is preferably 50% by mass or less of all repeating units constituting the dye multimer (A).
- the lower limit is preferably 1% by mass or more, more preferably 3% by mass or more.
- the upper limit is preferably 35% by mass or less, more preferably 30% by mass or less.
- Dye multimer (B) contains a repeating unit represented by formula (B).
- the proportion of the repeating unit represented by the formula (B) is preferably 10% by mass or more, more preferably 20% by mass or more, and still more preferably 30% by mass or more of the total repeating units constituting the dye multimer (B). 50% by mass or more is particularly preferred.
- the upper limit can be 100% by mass or less, or 95% by mass or less.
- X 2 represents a trivalent linking group
- L 2 represents a single bond or a divalent linking group
- D 2 has a dye structure having a group capable of forming an ionic or coordinate bond with Y 2 .
- Y 2 represents a group capable of forming an ionic bond or coordinate bond with D 2 ;
- X2 in formula (B) has the same definition as X1 in formula ( A ), and the preferred range is also the same.
- L2 in formula (B) represents a single bond or a divalent linking group.
- each R independently represents a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group.
- the details of the divalent linking group are the same as for L1 in Formula ( A ).
- L 2 is preferably a single bond, an alkylene group, an arylene group, -NH-, -CO-, -O-, -COO-, -OCO-, or a divalent linking group in which two or more of these are combined.
- Y 2 in formula (B) may be a group capable of ion bonding or coordinating with D 2 .
- Examples include anionic groups and cationic groups.
- Anionic groups include -SO 3 - , -COO - , -PO 4 2- , -PO 4 H - , bis(sulfonyl)imide anions, tris(sulfonyl)methide anions and tetraarylborate anions.
- Cationic groups include substituted or unsubstituted onium cations (eg, ammonium, pyridinium, imidazolium, phosphonium, etc.), with ammonium cations being particularly preferred.
- Ammonium cations include -N(R) 3 + .
- Each R independently represents a hydrogen atom or an alkyl group, and at least one of R represents an alkyl group.
- the number of carbon atoms in the alkyl group is preferably 1-10, more preferably 1-5.
- the alkyl group may be linear, branched, or cyclic, but is preferably linear.
- D2 in formula ( B ) represents a dye structure having a group capable of forming an ionic bond or a coordinate bond with Y2.
- the type of dye structure is not particularly limited, and includes the types of dye structures described in D1.
- the group capable of forming an ionic bond or coordinate bond with Y 2 possessed by D 2 includes an anionic group and a cationic group as described for Y 2 .
- the charge balance of D2 is biased toward either the cation or the anion, the cation portion or the anion portion of D2 can also bond with Y2 .
- the dye multimer (B) may contain other repeating units described in the dye multimer (A) in addition to the repeating unit represented by the formula (B). In addition, it may further contain a repeating unit represented by formula (A) described above and a repeating unit represented by formula (C) described later.
- the dye multimer (C) contains a repeating unit represented by formula (C).
- the proportion of the repeating unit represented by the formula (C) is preferably 10% by mass or more, more preferably 20% by mass or more, and still more preferably 30% by mass or more of the total repeating units constituting the dye multimer (C). 50% by mass or more is particularly preferred.
- the upper limit can be 100% by mass or less, or 95% by mass or less.
- L3 represents a single bond or a divalent linking group
- D3 represents a dye structure
- m represents 0 or 1.
- L3 in formula ( C) represents a single bond or a divalent linking group.
- each R independently represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group.
- the number of carbon atoms in the alkyl group and alkylene group is preferably 1-30.
- the upper limit is more preferably 25 or less, even more preferably 20 or less.
- the lower limit is more preferably 2 or more, and still more preferably 3 or more.
- Alkyl groups and alkylene groups may be linear, branched or cyclic.
- the aryl group and the arylene group preferably have 6 to 20 carbon atoms, more preferably 6 to 12 carbon atoms.
- the heterocyclic linking group and the heterocyclic group are preferably 5- or 6-membered rings.
- the heteroatom possessed by the heterocyclic linking group and the heterocyclic group is preferably an oxygen atom, a nitrogen atom and a sulfur atom.
- the number of heteroatoms possessed by the heterocyclic linking group and the heterocyclic group is preferably 1 to 3.
- An alkylene group, an arylene group, a heterocyclic linking group, an alkyl group, an aryl group, and a heterocyclic group may be unsubstituted or may have a substituent.
- substituents include polymerizable groups and acid groups.
- L 3 in formula (C) is preferably an alkylene group, an arylene group, --NH--, --CO--, --O--, --COO--, --OCO--, --S--, or a linking group combining two or more of these.
- Dye structures represented by D3 in formula ( C) include xanthene dye structures, pyrromethene dye structures, triarylmethane dye structures, quinacridone dye structures, cyanine dye structures and anthraquinone dye structures. structure and a triarylmethane dye structure are preferred, and a xanthene dye structure is more preferred.
- the xanthene dye structure is preferably a residue obtained by removing two hydrogen atoms from the compound represented by the above formula (XT).
- the pyrromethene dye structure is preferably a residue obtained by removing two hydrogen atoms from the compound represented by the above formula (PM).
- the triarylmethane dye structure is preferably a residue obtained by removing two hydrogen atoms from the compound represented by the above formula (TP).
- n in formula (C) represents 0 or 1, preferably 1.
- the dye multimer (C) may contain other repeating units described in the dye multimer (A) in addition to the repeating unit represented by the general formula (C).
- Dye multimer (D) is a compound represented by formula (D).
- L 4 represents an (n + k)-valent linking group
- L 41 and L 42 each independently represent a single bond or a divalent linking group
- D 4 represents a dye structure
- P 4 represents a substituent
- n represents 2-15
- k represents 0-13
- n+k is 2-15.
- the n D4s may be different from each other or may be the same.
- k is 2 or more, the plurality of P4 may be different from each other or may be the same.
- n in formula (D) is preferably 2 to 14, more preferably 2 to 8, particularly preferably 2 to 7, and even more preferably 2 to 6.
- k is preferably 1 to 13, more preferably 1 to 10, even more preferably 1 to 8, particularly preferably 1 to 7, and even more preferably 1 to 6.
- L 41 and L 42 in formula (D) each independently represent a single bond or a divalent linking group.
- Divalent linking groups include 1 to 100 carbon atoms, 0 to 10 nitrogen atoms, 0 to 50 oxygen atoms, 1 to 200 hydrogen atoms, and 0 and up to 20 sulfur atoms, which may be unsubstituted or further substituted.
- Specific examples of the divalent linking group include the following structural units or groups formed by combining two or more of the following structural units. * in the following formulas represents a bond.
- the (n+k)-valent linking group represented by L 4 in formula (D) includes 1 to 100 carbon atoms, 0 to 10 nitrogen atoms, 0 to 50 oxygen atoms, and 1 and up to 200 hydrogen atoms, and from 0 to 20 sulfur atoms.
- Examples of the (n+k)-valent linking group include the following structural units or groups (which may form a ring structure) formed by combining two or more of the following structural units. * in the following formulas represents a bond.
- linking groups described in paragraph numbers 0071 to 0072 of JP-A-2008-222950 and linking groups described in paragraph number 0176 of JP-A-2013-029760. is mentioned.
- Dye structures represented by D4 in formula ( D) include xanthene dye structures, pyrromethene dye structures, triarylmethane dye structures, quinacridone dye structures, cyanine dye structures and anthraquinone dye structures. structure and a triarylmethane dye structure are preferred, and a xanthene dye structure is more preferred.
- the xanthene dye structure is preferably a residue obtained by removing one hydrogen atom from the compound represented by the above formula (XT).
- the pyrromethene dye structure is preferably a residue obtained by removing one hydrogen atom from the compound represented by the above formula (PM).
- the triarylmethane dye structure is preferably a residue obtained by removing one hydrogen atom from the compound represented by the above formula (TP).
- Examples of the substituent represented by P 4 of formula (D) include an acid group and a polymerizable group.
- the substituent represented by P4 may be a monovalent polymer chain having a repeating unit.
- a monovalent polymer chain having a repeating unit is preferably a monovalent polymer chain having a repeating unit derived from a vinyl compound.
- k P4's may be the same or different.
- the coloring agent includes a diarylmethane compound described in JP-A-2020-504758, a triarylmethane dye polymer described in Korean Patent Publication No. 10-2020-0028160, and JP-A 2020-117638, a xanthene compound described in WO 2020/174991, a phthalocyanine compound described in WO 2020/174991, an isoindoline compound described in JP 2020-160279 or a salt thereof, Korean Patent Publication No. 10-2020- Compound represented by formula 1 described in 0069442, compound represented by formula 1 described in Korean Patent Publication No. 10-2020-0069730, described in Korean Patent Publication No.
- 10-2020-0069070 Compound represented by formula 1, compound represented by formula 1 described in Korean Patent Publication No. 10-2020-0069067, represented by formula 1 described in Korean Patent Publication No. 10-2020-0069062
- a compound, a halogenated zinc phthalocyanine pigment described in Japanese Patent No. 6809649, and an isoindoline compound described in JP-A-2020-180176 can be used.
- the colorant may be rotaxane, and the dye skeleton may be used in the cyclic structure of rotaxane, may be used in the rod-like structure, or may be used in both structures.
- compounds 1, 3, and 5 described in paragraph number 0143 of International Publication No. 2021/049441 can also be used as the colorant.
- the content of the coloring agent in the total solid content of the coloring composition is preferably 20 to 70% by mass.
- the lower limit is preferably 25% by mass or more, more preferably 29% by mass or more.
- the upper limit is preferably 60% by mass or less, more preferably 55% by mass or less.
- the coloring agent contained in the coloring composition of the present invention preferably contains a pigment containing a blue pigment and at least one dye selected from xanthene dyes and pyrromethene dyes.
- the blue pigment is C.I. I. Pigment Blue 15:3, 15:4, 15:6 preferably contains at least one selected from C.I. I. Pigment Blue 15:4, 15:6 more preferably contains at least one selected from C.I. I. Pigment Blue 15:6 is more preferred.
- the pigment is substantially composed only of a blue pigment, or substantially composed of only a blue pigment and a violet pigment.
- the colorant preferably contains a total of 30 to 130 parts by mass of the xanthene dye and the pyrromethene dye with respect to 100 parts by mass of the blue pigment.
- the lower limit is preferably 40 parts by mass or more, more preferably 50 parts by mass or more.
- the upper limit is preferably 115 parts by mass or less, more preferably 105 parts by mass or less, and even more preferably 60 parts by mass or less.
- the blue pigment is C.I. I. Pigment Blue 15:6 or C.I. I. Pigment Blue 15:4, and C.I. I. Pigment Blue 15:6 or C.I. I.
- a total of 30 to 130 parts by weight of the xanthene dye and the pyrromethene dye is preferably contained with respect to 100 parts by weight of Pigment Blue 15:4.
- the lower limit is preferably 40 parts by mass or more, more preferably 50 parts by mass or more.
- the upper limit is preferably 115 parts by mass or less, more preferably 105 parts by mass or less, and even more preferably 60 parts by mass or less.
- the blue pigment is C.I. I. pigment blue 15:6, the dye is a xanthene dye, and C.I. I. It is preferable to contain 30 to 130 parts by weight of the xanthene dye with respect to 100 parts by weight of Pigment Blue 15:6.
- the lower limit is preferably 40 parts by mass or more, more preferably 50 parts by mass or more.
- the upper limit is preferably 115 parts by mass or less, more preferably 105 parts by mass or less, and even more preferably 60 parts by mass or less.
- the coloring composition of the present invention contains a compound having an alicyclic epoxy group (hereinafter also referred to as an alicyclic epoxy compound).
- the alicyclic epoxy group means a monovalent functional group having a cyclic structure in which an epoxy ring and an aliphatic hydrocarbon ring are condensed.
- Examples of alicyclic epoxy groups include groups represented by formula (e-1). In formula (e-1), ring A E1 represents an aliphatic hydrocarbon ring, and * represents a bond.
- the aliphatic hydrocarbon ring represented by ring A E1 in formula (e-1) may be a monocyclic aliphatic hydrocarbon ring or a condensed aliphatic hydrocarbon ring.
- the aliphatic hydrocarbon ring represented by Ring A E1 may have a crosslinked structure. Among them, it preferably contains a cyclopentane ring, more preferably a condensed aliphatic hydrocarbon ring containing a cyclopentane ring, because it facilitates the formation of a film with more excellent light resistance. It is more preferably a condensed aliphatic hydrocarbon ring having a crosslinked structure.
- the group represented by formula (e-1) is preferably a group having a structure in which an epoxy ring and a cyclopentane ring are condensed, since a film having excellent light resistance can be easily formed.
- the alicyclic epoxy compound may be a monomer, but is preferably a polymer compound because it can form a cured film with more excellent light resistance.
- the compound having an alicyclic epoxy compound is a monomer
- its molecular weight is preferably less than 1,500, more preferably 100-1,250, even more preferably 300-1,000.
- the alicyclic epoxy compound is a polymer compound
- its weight average molecular weight is preferably 1,500 or more, more preferably 2,000 or more, and even more preferably 3,000 or more.
- the upper limit is preferably 20,000 or less, more preferably 18,000 or less, even more preferably 15,000 or less.
- the epoxy group value of the alicyclic epoxy compound is preferably 0.2 to 5.0 mmol/g, more preferably 0.5 to 5.0 mmol/g.
- the lower limit is preferably 0.8 mmol/g or more, more preferably 1.2 mmol/g or more.
- the upper limit is preferably 4.8 mmol/g or less, more preferably 4.5 mmol/g or less.
- the epoxy group value of the alicyclic epoxy compound is a value calculated by dividing the number of alicyclic epoxy groups contained in the alicyclic epoxy compound by the molecular weight of the alicyclic epoxy compound.
- the coloring composition of the present invention preferably uses a resin containing a repeating unit having an alicyclic epoxy group as the alicyclic epoxy compound.
- Repeating units having an alicyclic epoxy group include repeating units represented by formula (E1).
- X a1 represents a trivalent linking group
- L a1 represents a single bond or a divalent linking group
- Z a1 represents an alicyclic epoxy group
- Examples of the trivalent linking group represented by X a1 in the formula (E1) include a poly(meth)acrylic linking group, a polyalkyleneimine linking group, a polyester linking group, a polyurethane linking group, a polyurea linking group, and a polyamide linking group.
- a linking group and a novolac linking group are preferred, a polyether linking group, a novolac linking group and a poly(meth)acrylic linking group are more preferred, and a poly(meth)acrylic linking group is even more preferred.
- the divalent linking group represented by L a1 in formula (E1) includes 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 --, --CO--, --O--, --COO--, --OCO--, --S-- and groups formed by combining two or more of these.
- the alkylene group may be linear, branched or cyclic, preferably linear or branched. Moreover, the alkylene group may have a substituent or may be unsubstituted. A hydroxy group, an alkoxy group, etc. are mentioned as a substituent.
- the alicyclic epoxy group represented by Z a1 in formula (E1) includes the group represented by formula (e-1) described above, and the group represented by formula (e-1-3) and the group represented by formula (e -1-4) is preferred.
- the resin containing repeating units having an alicyclic epoxy group has at least one repeating unit selected from repeating units represented by formula (E1-1) and repeating units represented by formula (E1-2). Resin is preferred.
- the resin may contain only one of the repeating units represented by the formula (E1-1) and the repeating unit represented by the formula (E1-2).
- a repeating unit represented by 1) and a repeating unit represented by formula (E1-2) may be included.
- the ratio of the repeating unit represented by the formula (E1-1) to the repeating unit represented by the formula (E1-2) is a molar ratio represented by the formula (E1-1)
- Repeating unit: repeating unit represented by formula (E1-2) preferably 5:95 to 95:5, more preferably 10:90 to 90:10, 20:80 to 80 :20 is more preferred.
- L E1 represents a single bond or a divalent linking group
- R E10 represents a hydrogen atom or a substituent.
- the substituent represented by R E10 includes an alkyl group and an aryl group, preferably an alkyl group.
- the number of carbon atoms in the alkyl group is preferably 1-10, more preferably 1-5, more preferably 1-3.
- R E10 is preferably a hydrogen atom or a methyl group.
- the divalent linking group represented by L E1 includes 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 -, -CO-, -O-, -COO-, -OCO-, -S- and groups formed by combining two or more of these.
- the alkylene group may be linear, branched or cyclic, preferably linear or branched.
- the alkylene group may have a substituent or may be unsubstituted. A hydroxy group, an alkoxy group, etc. are mentioned as a substituent.
- the content of repeating units having an alicyclic epoxy group is preferably 1 to 100 mol% of the total repeating units of the resin containing repeating units having an alicyclic epoxy group.
- the upper limit is preferably 90 mol % or less, more preferably 80 mol % or less.
- the lower limit is preferably 2 mol % or more, more preferably 3 mol % or more.
- the resin containing repeating units having an alicyclic epoxy group may have other repeating units in addition to the repeating units having an alicyclic epoxy group.
- Other repeating units include a repeating unit having an acid group, a repeating unit having an ethylenically unsaturated bond-containing group, and the like.
- the acid group includes a phenolic hydroxy group, a carboxy group, a sulfo group, and a phosphoric acid group, preferably a phenolic hydroxy group or a carboxy group, more preferably a carboxy group.
- ethylenically unsaturated bond-containing groups examples include vinyl groups, styrene groups, (meth)allyl groups, and (meth)acryloyl groups.
- Repeating units having an acid group include repeating units represented by the following formula (E2). Moreover, repeating units having an ethylenically unsaturated bond-containing group include repeating units represented by the following formula (E3).
- X b1 represents a trivalent linking group
- L b1 represents a single bond or a divalent linking group
- Z b1 represents an acid group.
- X c1 represents a trivalent linking group
- L c1 represents a single bond or a divalent linking group
- Z c1 represents an ethylenically unsaturated bond-containing group.
- Examples of the trivalent linking group represented by X b1 in formula (E2) and the trivalent linking group represented by X c1 in formula (E3) include a poly(meth)acrylic linking group, a polyalkyleneimine linking group, and a polyester linking group.
- polyurethane-based linking group polyurea-based linking group, polyamide-based linking group, polyether-based linking group, polystyrene-based linking group, bisphenol-based linking group, novolak-based linking group, etc.
- poly(meth)acrylic-based linking group a polyether-based linking group, a polyester-based linking group, a bisphenol-based linking group and a novolak-based linking group are preferable, a polyether-based linking group, a novolac-based linking group and a poly(meth)acrylic-based linking group are more preferable, and a poly(meth) ) Acrylic linking groups are more preferred.
- the divalent linking group represented by L b1 in formula (E2) and the divalent linking group represented by L c1 in formula (E3) 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 -, -CO-, -O-, -COO-, -OCO-, -S- and two or more of these A group formed by combination is mentioned.
- the alkylene group may be linear, branched or cyclic, preferably linear or branched.
- the alkylene group may have a substituent or may be unsubstituted. A hydroxy group, an alkoxy group, etc. are mentioned as a substituent.
- the acid group represented by Z b1 in formula (E2) includes a phenolic hydroxy group, a carboxy group, a sulfo group, and a phosphoric acid group, preferably a phenolic hydroxy group or a carboxy group, and a carboxy group. is more preferred.
- Examples of the ethylenically unsaturated bond-containing group represented by Zc2 of formula (E3) include a vinyl group, a styrene group, a (meth)allyl group, and a (meth)acryloyl group.
- the content of the repeating units having an acid group is the total repeating units of the resin containing repeating units having an alicyclic epoxy group. It is preferably 10 to 80 mol %.
- the upper limit is preferably 70 mol % or less, more preferably 60 mol % or less.
- the lower limit is preferably 15 mol% or more, more preferably 20 mol% or more.
- the content of the repeating unit having an ethylenically unsaturated bond-containing group is the same as that of the alicyclic epoxy group. It is preferably 1 to 20 mol % of the total repeating units of the resin containing the repeating units.
- the upper limit is preferably 18 mol % or less, more preferably 15 mol % or less.
- the lower limit is preferably 3 mol % or more, more preferably 5 mol % or more.
- the resin containing repeating units having an alicyclic epoxy group preferably further contains repeating units having an aromatic hydrocarbon ring.
- the aromatic hydrocarbon ring is preferably a benzene ring or a naphthalene ring, more preferably a benzene ring.
- the aromatic hydrocarbon ring may have a substituent. An alkyl group etc. are mentioned as a substituent.
- the content of the repeating unit having an aromatic hydrocarbon ring is 1 to 65 in all repeating units of the resin having a cyclic ether group. Mole % is preferred.
- the upper limit is preferably 45 mol % or less, more preferably 30 mol % or less.
- the lower limit is preferably 2 mol % or more, more preferably 3 mol % or more.
- Repeating units having an aromatic hydrocarbon ring include repeating units derived from monofunctional polymerizable compounds having an aromatic hydrocarbon ring, such as vinyl toluene and benzyl (meth)acrylate.
- the weight-average molecular weight of the resin containing repeating units having an alicyclic epoxy group is preferably 2,000 to 70,000.
- the upper limit is preferably 60,000 or less, more preferably 50,000 or less.
- the lower limit is preferably 3000 or more, more preferably 5000 or more.
- the epoxy group value of the resin containing repeating units having an alicyclic epoxy group is preferably 0.2 to 5.0 mmol/g, more preferably 0.5 to 5.0 mmol/g. .
- the lower limit is preferably 0.8 mmol/g or more, more preferably 1.2 mmol/g or more.
- the upper limit is preferably 4.8 mmol/g or less, more preferably 4.5 mmol/g or less.
- the acid value of the resin containing repeating units having an alicyclic epoxy group is preferably 30 to 500 mgKOH/g.
- the lower limit is preferably 50 mgKOH/g or more, more preferably 60 mgKOH/g or more.
- the upper limit is preferably 300 mgKOH/g or less, more preferably 250 mgKOH/g or less.
- alicyclic epoxy compound examples include compounds having the structures shown below.
- the content of the alicyclic epoxy compound in the total solid content of the coloring composition is preferably 5 to 50% by mass.
- the lower limit is preferably 7% by mass or more, more preferably 9% by mass or more.
- the upper limit is preferably 55% by mass or less, more preferably 50% by mass or less.
- the content of the resin containing a repeating unit having an alicyclic epoxy group in the total amount of the alicyclic epoxy compound is preferably 40 to 100% by mass, more preferably 50 to 100% by mass, More preferably 60 to 100% by mass.
- the coloring composition of the present invention may contain only one type of alicyclic epoxy compound, or may contain two or more types thereof. When two or more alicyclic epoxy compounds are included, the total amount thereof is preferably within the above range.
- the coloring composition of the present invention can contain a compound having a cyclic ether group other than an alicyclic epoxy group (also referred to as a compound having another cyclic ether group).
- the coloring composition of the present invention does not substantially contain other compounds having a cyclic ether group. According to this aspect, the effect of obtaining a cured film having high light resistance can be expected.
- substantially free of compounds having other cyclic ether groups means that the content of compounds having other cyclic ether groups in the total solid content of the coloring composition is 0.1% by mass. It is preferably 0.01% by mass or less, and more preferably does not contain other compounds having a cyclic ether group.
- Cyclic ether groups other than alicyclic epoxy groups include groups represented by formula (e-2).
- R e2 represents a hydrogen atom or an alkyl group
- n represents 0 or 1
- * represents a bond.
- the number of carbon atoms in the alkyl group represented by R e2 is preferably 1 to 20, more preferably 1 to 10, still more preferably 1 to 5, and particularly preferably 1 to 3.
- the alkyl group represented by R e2 is preferably linear or branched, more preferably linear.
- R e2 is preferably a hydrogen atom.
- R e2 is preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
- formula (e-2) is represented by formula (e-2a) below.
- a compound having another cyclic ether group may be a monomer or a polymer compound.
- its molecular weight is preferably less than 1,500, more preferably 100-1,250, even more preferably 300-1,000.
- the other compound having a cyclic ether group is a polymer compound, its weight average molecular weight is preferably 1,500 or more, more preferably 1,750 or more, and even more preferably 2,000 or more.
- the upper limit is preferably 100,000 or less, more preferably 50,000 or less, even more preferably 10,000 or less.
- Epoxy resins can be preferably used as other compounds having a cyclic ether group.
- Examples of epoxy resins include epoxy resins that are glycidyl etherified phenolic compounds, epoxy resins that are glycidyl etherified compounds of various novolac resins, aliphatic epoxy resins, glycidyl ester epoxy resins, glycidylamine epoxy resins, and halogenated phenols. , a condensate of a silicon compound having an epoxy group and another silicon compound, a copolymer of a polymerizable unsaturated compound having an epoxy group and another polymerizable unsaturated compound, etc. is mentioned.
- EPICLON HP5000 EPICLON HP5000
- EPICLON HP4032D manufactured by DIC Corporation
- alkyldiphenol-type epoxy resins examples include EPICLON 820 (manufactured by DIC Corporation).
- jER825, jER827, jER828, jER834, jER1001, jER1002, jER1003, jER1055, jER1007, jER1009, jER1010 (manufactured by Mitsubishi Chemical Corporation), EPICLON860, EPICLON1050, EPICLON1051, EPICLON1055 (and Co., Ltd.) and the like.
- Phenol novolac type epoxy resins include jER152, jER154, jER157S70, jER157S65 (manufactured by Mitsubishi Chemical Corporation), EPICLON N-740, EPICLON N-770, EPICLON N-775 (manufactured by DIC Corporation), and the like. mentioned.
- EPICLON N-660, EPICLON N-665, EPICLON N-670, EPICLON N-673, EPICLON N-680, EPICLON N-690, EPICLON N-695 (manufactured by DIC Corporation) as cresol novolak type epoxy resins , and EOCN-1020 (manufactured by Nippon Kayaku Co., Ltd.).
- ADEKA RESIN EP-4080S, EP-4085S, EP-4088S manufactured by ADEKA Corporation
- Celoxide 2021P Celoxide 2081, Celoxide 2083, Celoxide 2085, EHPE3150, EPOLEAD PB 3600, EPOLEAD PB 4700 (manufactured by Daicel Corporation), Denacol EX-212L, EX-214L, EX-216L, EX-321L, EX-850L (manufactured by Nagase ChemteX Corporation) and the like.
- OXT-101, OXT-121, OXT-212, OXT-221 manufactured by Toagosei Co., Ltd.
- OXE-10, OXE-30 manufactured by Osaka Organic Chemical Industry ( Co., Ltd.) and the like.
- compounds described in paragraph numbers 0034 to 0036 of JP-A-2013-011869, compounds described in paragraph numbers 0147-0156 of JP-A-2014-043556, in particular Compounds described in paragraph numbers 0085 to 0092 of JP 2014-089408, compounds described in JP 2017-179172, compounds described in paragraph numbers 0117 to 0120 of JP 2020-515680 can also be used.
- the content of the compound having another cyclic ether group in the total solid content of the coloring composition is preferably 1 to 8 mass%, 2 It is preferably up to 7% by mass, more preferably 3 to 6% by mass.
- the content of the other compound having a cyclic ether group is preferably 1 to 20 parts by mass, more preferably 3 to 15 parts by mass, with respect to 100 parts by mass of the alicyclic epoxy compound. More preferably 5 to 10 parts by mass.
- the coloring composition of the present invention may contain only one type of compound having another cyclic ether group, or may contain two or more types. When two or more compounds having other cyclic ether groups are included, the total amount thereof is preferably within the above range.
- the coloring composition of the present invention can contain a resin as a component other than the above-mentioned alicyclic epoxy compound and other compounds having a cyclic ether group.
- the resin is blended, for example, for dispersing a pigment in a coloring composition or as a binder.
- a resin mainly used for dispersing a pigment in a coloring composition is also called a dispersant.
- a resin as a dispersing agent can be used during the preparation of the dispersion.
- the resin-type compound having an alicyclic epoxy group is a component corresponding to the compound having an alicyclic epoxy group.
- the above-mentioned resin-type compounds having other cyclic ether groups are components corresponding to compounds having other cyclic ether groups.
- the weight average molecular weight (Mw) of the resin is preferably 2,000 to 2,000,000.
- the upper limit is preferably 1,000,000 or less, more preferably 500,000 or less.
- the lower limit is preferably 3,000 or more, more preferably 4,000 or more, and even more preferably 5,000 or more.
- resins examples include (meth)acrylic resins, (meth)acrylamide resins, ene-thiol resins, polycarbonate resins, polyether resins, polyarylate resins, polysulfone resins, polyethersulfone resins, polyphenylene resins, and polyarylene ether phosphine oxides. resins, polyimide resins, polyamideimide resins, polyolefin resins, cyclic olefin resins, polyester resins, styrene resins, siloxane resins, and the like.
- a resin having a glass transition temperature of 390° C. or higher can also be used as the resin.
- examples of commercially available resins having a glass transition temperature of 390° C. or higher include polyimide varnish H520 manufactured by Mitsubishi Gas Chemical Company, Inc. and the like.
- the resin used in the present invention may have an acid group.
- acid groups include carboxy groups, phosphoric acid groups, sulfo groups, and phenolic hydroxy groups. Only one kind of these acid groups may be used, or two or more kinds thereof may be used.
- the acid group-containing resin preferably contains a repeating unit having an acid group in its side chain.
- a resin having an acid group can also be used as an alkali-soluble resin or a dispersant.
- the acid value of the resin having acid groups is preferably 30-500 mgKOH/g.
- the lower limit is preferably 50 mgKOH/g or more, more preferably 70 mgKOH/g or more.
- the upper limit is preferably 400 mgKOH/g or less, more preferably 250 mgKOH/g or less, even more preferably 220 mgKOH/g or less, and most preferably 200 mgKOH/g or less.
- a resin having an acid group may have a repeating unit derived from a maleimide compound.
- Maleimide compounds include N-alkylmaleimides and N-arylmaleimides. Repeating units derived from maleimide compounds include repeating units represented by the formula (C-mi).
- Rmi represents an alkyl group or an aryl group.
- the number of carbon atoms in the alkyl group is preferably 1-20.
- Alkyl groups may be linear, branched or cyclic.
- the number of carbon atoms in the aryl group is preferably 6-20, more preferably 6-15, even more preferably 6-10.
- Rmi is preferably an aryl group.
- the resin having an acid group is a compound represented by the following formula (ED1) and/or a compound represented by the following formula (ED2) (hereinafter, these compounds may be referred to as an "ether dimer").
- ED1 a compound represented by the following formula
- ED2 a compound represented by the following formula
- a resin containing a unit is also preferable.
- R 1 and R 2 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 25 carbon atoms which may have a substituent.
- R represents a hydrogen atom or an organic group having 1 to 30 carbon atoms.
- the description in JP-A-2010-168539 can be referred to, the contents of which are incorporated herein.
- Specific examples of the ether dimer can be referred to paragraph number 0317 of JP-A-2013-029760, the content of which is incorporated herein.
- resins containing repeating units derived from ether dimer include resins having the following structures. Me in the following structural formulas represents a methyl group.
- the coloring composition of the present invention also preferably contains a resin having a basic group.
- the resin having a basic group is preferably a resin containing a repeating unit having a basic group in its side chain. It is more preferably a polymer, and more preferably a block copolymer having a repeating unit having a basic group on its side chain and a repeating unit containing no basic group. Resins having basic groups can also be used as dispersants.
- the amine value of the resin having basic groups is preferably 5-300 mgKOH/g.
- the lower limit is preferably 10 mgKOH/g or more, more preferably 20 mgKOH/g or more.
- the upper limit is preferably 200 mgKOH/g or less, more preferably 100 mgKOH/g or less.
- resins having basic groups include DISPERBYK-161, 162, 163, 164, 166, 167, 168, 174, 182, 183, 184, 185, 2000, 2001, 2050, 2150, 2163, 2164, BYK-LPN6919 (manufactured by BYK-Chemie), Solsperse 11200, 13240, 13650, 13940, 24000, 26000, 28000, 32000, 32500, 32550, 32600, 33000, 34750, 35100, 35200, 37500, 33090500, 39090500, 390500 56000, 7100 (manufactured by Nippon Lubrizol), Efka PX 4300, 4330, 4046, 4060, 4080 (manufactured by BASF) and the like.
- the resin having a basic group is a block copolymer (B) described in paragraph numbers 0063 to 0112 of JP-A-2014-219665, and described in paragraph numbers 0046-0076 of JP-A-2018-156021. It is also possible to use the block copolymer A1 described above and vinyl resins having basic groups described in paragraphs 0150 to 0153 of JP-A-2019-184763, the contents of which are incorporated herein.
- the coloring composition of the present invention preferably contains a resin having an acid group and a resin having a basic group. According to this aspect, the storage stability of the coloring composition can be further improved.
- a resin having an acid group and a resin having a basic group are used in combination, the content of the resin having a basic group is 20 to 500 parts by mass with respect to 100 parts by mass of the resin having an acid group. It is preferably from 30 to 300 parts by mass, and even more preferably from 50 to 200 parts by mass.
- the resin used in the present invention may have a polymerizable group.
- polymerizable groups include ethylenically unsaturated bond-containing groups such as vinyl groups, (meth)allyl groups, and (meth)acryloyl groups.
- Commercially available resins having a polymerizable group include Dianal NR series (manufactured by Mitsubishi Rayon Co., Ltd.), Photomer 6173 (carboxy group-containing polyurethane acrylate oligomer, manufactured by Diamond Shamrock Co., Ltd.), Viscoat R-264, and KS.
- Resist 106 both manufactured by Osaka Organic Chemical Industry Co., Ltd.
- Cychromer P series for example, ACA230AA
- Plaxel CF200 series both manufactured by Daicel Corporation
- Ebecryl 3800 manufactured by Daicel UCB Co., Ltd.
- Accuricure RD-F8 manufactured by Nippon Shokubai Co., Ltd.
- DP-1305 manufactured by Fuji Film Fine Chemicals Co., Ltd.
- the resin used in the present invention also preferably contains a resin b1 containing a repeating unit derived from the compound represented by formula (III).
- a resin b1 containing a repeating unit derived from the compound represented by formula (III) By using the resin b1, it has excellent curability at low temperatures, and can form a sufficiently cured film even when heated at relatively low temperatures. Furthermore, it is easy to form a cured film having excellent spectral characteristics.
- R 1 represents a hydrogen atom or a methyl group
- R 21 and R 22 each independently represent an alkylene group
- n represents an integer of 0-15.
- the number of carbon atoms in the alkylene group represented by R 21 and R 22 is preferably 1 to 10, more preferably 1 to 5, even more preferably 1 to 3, particularly 2 or 3. preferable.
- n represents an integer of 0 to 15, preferably an integer of 0 to 5, more preferably an integer of 0 to 4, and even more preferably an integer of 0 to 3.
- Examples of the compound represented by formula (III) include ethylene oxide- or propylene oxide-modified (meth)acrylate of paracumylphenol.
- Commercially available products include Aronix M-110 (manufactured by Toagosei Co., Ltd.).
- the proportion of repeating units derived from the compound represented by formula (III) in all repeating units of resin b1 is preferably 1 to 99 mol%.
- the lower limit is more preferably 3 mol % or more, more preferably 5 mol % or more.
- the upper limit is more preferably 95 mol% or less, even more preferably 90 mol% or less.
- the resin b1 may further contain repeating units other than the repeating units derived from the compound represented by formula (III).
- resin b1 may contain repeating units derived from (meth)acrylate, and preferably contain repeating units derived from alkyl (meth)acrylate.
- the number of carbon atoms in the alkyl portion of the alkyl (meth)acrylate is preferably 3-10, more preferably 3-8, even more preferably 3-6.
- Preferred specific examples of alkyl (meth)acrylates include n-butyl (meth)acrylate.
- the resin b1 contains a repeating unit having an acid group.
- the resin used in the present invention preferably contains a resin having a repeating unit containing a blocked isocyanate group (hereinafter also referred to as resin BI). According to this aspect, more excellent low-temperature curability can be obtained, and a sufficiently cured film can be formed even by heating at a relatively low temperature.
- resin BI a resin having a repeating unit containing a blocked isocyanate group
- the blocked isocyanate group possessed by the resin BI is preferably a group capable of generating an isocyanate group by heat, more preferably a group capable of generating an isocyanate group by heat of 70 to 150°C. preferable.
- the blocked isocyanate group includes a group having a structure in which the isocyanate group is chemically protected by a blocking agent.
- a blocked isocyanate group is a group having a structure in which the isocyanate group is protected by a compound called a blocking agent. It is a group having a structure in which a blocking agent is eliminated from a blocked isocyanate group to generate an isocyanate group.
- the blocked isocyanate group possessed by the resin BI is more preferably a group capable of generating an isocyanate group by heating at 70 to 150°C. That is, the isocyanate formation temperature of the blocked isocyanate group (the desorption temperature of the blocking agent) is preferably 70 to 150°C. From the viewpoint of storage stability, the lower limit of the isocyanate generation temperature is preferably 75° C. or higher, more preferably 80° C. or higher. From the viewpoint of curability, the upper limit of the isocyanate generation temperature is preferably 130° C. or less, more preferably 120° C. or less.
- Blocking agents for protecting isocyanate groups of blocked isocyanate groups include oxime compounds, lactam compounds, phenol compounds, alcohol compounds, amine compounds, active methylene compounds, pyrazole compounds, mercaptan compounds, imidazole compounds, imide compounds, etc. and easiness of the deprotection reaction, preferred are oxime compounds, lactam compounds, active methylene compounds and pyrazole compounds, more preferred are oxime compounds, active methylene compounds and pyrazole compounds, and still more preferred are oxime compounds.
- the coloring composition of the present invention can contain a resin as a dispersant.
- Dispersants include acidic dispersants (acidic resins) and basic dispersants (basic resins).
- the acidic dispersant (acidic resin) represents a resin in which the amount of acid groups is greater than the amount of basic groups.
- the acidic dispersant (acidic resin) a resin in which the amount of acid groups accounts for 70 mol% or more when the total amount of the amount of acid groups and the amount of basic groups is 100 mol% is preferable.
- a resin consisting only of acid groups is more preferable.
- the acid group possessed by the acidic dispersant (acidic resin) is preferably a carboxy group.
- the acid value of the acidic dispersant is preferably 10-105 mgKOH/g.
- a basic dispersant represents a resin in which the amount of basic groups is greater than the amount of acid groups.
- a resin containing more than 50 mol % of basic groups is preferable when the total amount of acid groups and basic groups is 100 mol %.
- the basic group possessed by the basic dispersant is preferably an amino group.
- Dispersants include, for example, polymeric dispersants [e.g., polyamidoamine and its salts, polycarboxylic acids and their salts, high molecular weight unsaturated acid esters, modified polyurethanes, modified polyesters, modified poly(meth)acrylates, (meth) acrylic copolymer, formalin condensate of naphthalene sulfonate], polyoxyethylene alkyl phosphate, polyoxyethylene alkylamine, alkanolamine, and the like.
- Polymeric dispersants can be further classified into straight-chain polymers, terminal-modified polymers, graft-type polymers, and block-type polymers according to their structures.
- Polymeric dispersants adsorb to the surfaces of particles such as pigments and act to prevent reaggregation. Therefore, a terminal-modified polymer, a graft-type polymer, and a block-type polymer having an anchor site to the surface of a particle such as a pigment are preferable structures. Dispersants described in paragraphs 0028 to 0124 of JP-A-2011-070156 and dispersants described in JP-A-2007-277514 are also preferably used.
- a graft copolymer can also be used as a dispersant. Details of the graft copolymer can be referred to paragraphs 0131 to 0160 of JP-A-2012-137564, the contents of which are incorporated herein. Further, an oligoimine copolymer containing a nitrogen atom in at least one of the main chain and the side chain can also be used as the dispersant. Regarding the oligoimine copolymer, the description of paragraphs 0102 to 0174 of JP-A-2012-255128 can be referred to, and the contents thereof are incorporated herein. As the dispersant, a resin having a structure in which a plurality of polymer chains are bonded to the core portion can also be used.
- Such resins include, for example, dendrimers (including star polymers). Further, specific examples of dendrimers include polymer compounds C-1 to C-31 described in paragraphs 0196 to 0209 of JP-A-2013-043962.
- the dispersant includes polyethyleneimine having a polyester side chain described in WO 2016/104803, a block copolymer described in WO 2019/125940, and a block copolymer described in JP 2020-066687. A block polymer having an acrylamide structural unit, a block polymer having an acrylamide structural unit described in JP-A-2020-066688, and the like can also be used.
- Dispersants are also available as commercial products, and specific examples thereof include the Disperbyk series manufactured by BYK-Chemie (for example, Disperbyk-111, 2001, etc.), the BYK series, Sol manufactured by Nippon Lubrizol Co., Ltd. Sparse series (for example, Solsperse 20000, 76500, etc.), Ajinomoto Fine-Techno Co., Inc. Ajisper series, and the like.
- the product described in paragraph number 0129 of JP-A-2012-137564 and the product described in paragraph number 0235 of JP-A-2017-194662 can also be used as a dispersant.
- the resin content in the total solid content of the coloring composition is preferably 5 to 50% by mass.
- the upper limit is preferably 40% by mass or less, more preferably 30% by mass or less.
- the lower limit is preferably 10% by mass or more, more preferably 20% by mass or more.
- the coloring composition of the present invention may contain only one resin, or may contain two or more resins. When two or more resins are included, the total amount thereof is preferably within the above range.
- the coloring composition of the present invention preferably contains a polymerizable compound.
- the polymerizable compound include compounds having an ethylenically unsaturated bond-containing group.
- ethylenically unsaturated bond-containing groups include vinyl groups, (meth)allyl groups, and (meth)acryloyl groups.
- the polymerizable compound used in the present invention is preferably a radically polymerizable compound.
- the polymerizable compound may be in any chemical form such as monomer, prepolymer, oligomer, etc., but monomer is preferred.
- the molecular weight of the polymerizable compound is preferably 100-3000.
- the upper limit is preferably 2000 or less, more preferably 1500 or less.
- the lower limit is preferably 150 or more, more preferably 250 or more.
- 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 polymerizable compound is preferably a compound containing 3 or more ethylenically unsaturated bond-containing groups, more preferably a compound containing 4 or more ethylenically unsaturated bond-containing groups. According to this aspect, the curability of the colored composition by exposure is good.
- the upper limit of the ethylenically unsaturated bond-containing groups is preferably 15 or less, more preferably 10 or less, even more preferably 6 or less, from the viewpoint of the stability of the colored composition over time.
- the polymerizable compound is preferably a tri- or more functional (meth) acrylate compound, more preferably a 3- to 15-functional (meth) acrylate compound, and a 3- to 10-functional (meth) acrylate compound. is more preferred, and tri- to hexa-functional (meth)acrylate compounds are particularly preferred.
- the polymerizable compound is also preferably a compound containing an ethylenically unsaturated bond-containing group and an alkyleneoxy group.
- a polymerizable compound has high flexibility and the ethylenically unsaturated bond-containing group easily moves, so that the polymerizable compound easily reacts with each other during exposure, resulting in a cured film ( pixels) can be formed.
- a hydroxyalkylphenone compound is used as a photopolymerization initiator
- the polymerizable compound and the photopolymerization initiator are in close proximity to each other to generate radicals in the vicinity of the polymerizable compound, thereby effectively promoting the polymerization of the polymerizable compound. It is presumed that it can be reacted, and it is easy to form a cured film (pixel) having more excellent light resistance.
- the number of alkyleneoxy groups contained in one molecule of the polymerizable compound is preferably 3 or more, more preferably 4 or more.
- the upper limit is preferably 20 or less from the viewpoint of the stability of the colored composition over time.
- the SP value (Solubility Parameter) of the compound containing an ethylenically unsaturated bond-containing group and an alkyleneoxy group is preferably 9.0 to 11.0 from the viewpoint of compatibility with other components in the coloring composition.
- the upper limit is preferably 10.75 or less, more preferably 10.5 or less.
- the lower limit is preferably 9.25 or more, more preferably 9.5 or more.
- the SP value used the calculated value based on the Fedors method.
- Compounds having an ethylenically unsaturated bond-containing group and an alkyleneoxy group include compounds represented by the following formula (M-1).
- M-1 In the formula, A 1 represents an ethylenically unsaturated bond-containing group, L 1 represents a single bond or a divalent linking group, R 1 represents an alkylene group, m represents an integer of 1 to 30, n represents an integer of 3 or more, and L2 represents an n - valent linking group.
- Examples of the ethylenically unsaturated bond-containing group represented by A 1 include a vinyl group, a (meth)allyl group, and a (meth)acryloyl group, with a (meth)acryloyl group being preferred.
- the divalent linking group represented by L 1 includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, and groups in which two or more of these are combined. .
- the number of carbon atoms in the alkylene group is preferably 1-30, more preferably 1-20, even more preferably 1-15.
- the alkylene group may be linear, branched or cyclic.
- the arylene group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 10 carbon atoms.
- the number of carbon atoms in the alkylene group represented by R 1 is preferably 1 to 10, more preferably 1 to 5, still more preferably 1 to 3, particularly preferably 2 or 3, and most preferably 2.
- the alkylene group represented by R 1 is preferably linear or branched, more preferably linear. Specific examples of the alkylene group represented by R 1 include an ethylene group and a linear or branched propylene group, with an ethylene group being preferred.
- n represents an integer of 1 to 30, preferably an integer of 1 to 20, more preferably an integer of 1 to 10, and still more preferably 1 to 5.
- n represents an integer of 3 or more, preferably an integer of 4 or more.
- the upper limit of n is preferably an integer of 15 or less, more preferably an integer of 10 or less, and even more preferably an integer of 6 or less.
- the n-valent linking group represented by L 2 includes an aliphatic hydrocarbon group, an aromatic hydrocarbon group, a heterocyclic group, a group consisting of a combination thereof, an aliphatic hydrocarbon group, an aromatic hydrocarbon group and a heterocyclic group.
- a group formed by combining at least one selected from cyclic groups with at least one selected from -O-, -CO-, -COO-, -OCO- and -NH- may be mentioned.
- the number of carbon atoms in the aliphatic hydrocarbon group is preferably 1-30, more preferably 1-20, even more preferably 1-15.
- the aliphatic hydrocarbon group may be linear, branched or cyclic, preferably linear or branched.
- the number of carbon atoms in the aromatic hydrocarbon group is preferably 6-30, more preferably 6-20, even more preferably 6-10.
- 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. Types of heteroatoms constituting the heterocyclic group include a nitrogen atom, an oxygen atom, a sulfur atom and the like.
- the number of heteroatoms constituting the heterocyclic group is preferably 1-3.
- the heterocyclic group may be monocyclic or condensed.
- the n - valent linking group represented by L2 is also preferably a group derived from a polyfunctional alcohol.
- a compound represented by the following formula (M-2) is more preferable.
- R 2 represents a hydrogen atom or a methyl group
- R 1 represents an alkylene group
- m represents an integer of 1 to 30
- n represents an integer of 3 or more
- L 2 represents an n-valent linking group.
- R 1 , L 2 , m and n in formula (M-2) have the same meanings as R 1 , L 2 , m and n in formula (M-1), and the preferred ranges are also the same.
- dipentaerythritol tri(meth)acrylate (commercially available as KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetra(meth)acrylate (commercially available as KAYARAD D-320 manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol penta(meth)acrylate (as a commercial product, KAYARAD D-310; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol hexa(meth)acrylate (as a commercial product, KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd., NK Ester A-DPH-12E; manufactured by Shin-Nakamura Chemical Co., Ltd.), and their (meth)acryloyl groups via ethylene glycol and/or propylene glycol residues
- Compounds of conjugated structures (eg SR454,
- diglycerin EO ethylene oxide modified (meth) acrylate
- pentaerythritol tetraacrylate manufactured by Shin-Nakamura Chemical Co., Ltd., NK Ester A -TMMT
- 1,6-hexanediol diacrylate manufactured by Nippon Kayaku Co., Ltd., KAYARAD HDDA
- RP-1040 manufactured by Nippon Kayaku Co., Ltd.
- Aronix M-402 manufactured by Toagosei Co., Ltd., A mixture of dipentaerythritol hexaacrylate and dipentaerythritol pentaacrylate
- Aronix TO-2349 manufactured by Toagosei Co., Ltd.
- NK Oligo UA-7200 manufactured by Shin-Naka
- polymerizable compounds examples include trimethylolpropane tri(meth)acrylate, trimethylolpropane propylene oxide-modified tri(meth)acrylate, trimethylolpropane ethylene oxide-modified tri(meth)acrylate, isocyanuric acid ethylene oxide-modified tri(meth)acrylate, and pentaerythritol. It is also preferred to use a trifunctional (meth)acrylate compound such as tri(meth)acrylate.
- Commercial products of trifunctional (meth)acrylate compounds include Aronix M-309, M-310, M-321, M-350, M-360, M-313, M-315, M-306 and M-305.
- M-303, M-452, M-450 manufactured by Toagosei Co., Ltd.
- a polymerizable compound having an acid group can also be used as the polymerizable compound.
- the acid group includes a carboxy group, a sulfo group, a phosphoric acid group and the like, and a carboxy group is preferred.
- Commercially available polymerizable compounds having an acid group include Aronix M-305, M-510, M-520 and Aronix TO-2349 (manufactured by Toagosei Co., Ltd.).
- the acid value of the polymerizable compound having an acid group is preferably 0.1-40 mgKOH/g, more preferably 5-30 mgKOH/g.
- the acid value of the polymerizable compound is 0.1 mgKOH/g or more, the solubility in the developer is good, and when it is 40 mgKOH/g or less, it is advantageous in terms of production and handling.
- a polymerizable compound having a caprolactone structure can also be used as the polymerizable compound.
- Polymerizable compounds having a caprolactone structure are commercially available from Nippon Kayaku Co., Ltd. under the KAYARAD DPCA series, including DPCA-20, DPCA-30, DPCA-60, and DPCA-120.
- a polymerizable compound having a fluorene skeleton can also be used as the polymerizable compound.
- Commercially available polymerizable compounds having a fluorene skeleton include Ogsol EA-0200 and EA-0300 (manufactured by Osaka Gas Chemicals Co., Ltd., (meth)acrylate monomers having a fluorene skeleton).
- the polymerizable compound it is also preferable to use a compound that does not substantially contain environmentally regulated substances such as toluene.
- environmentally regulated substances such as toluene.
- Commercially available products of such compounds include KAYARAD DPHA LT and KAYARAD DPEA-12 LT (manufactured by Nippon Kayaku Co., Ltd.).
- polymerizable compound examples include urethane acrylates such as those described in JP-B-48-041708, JP-A-51-037193, JP-B-02-032293, JP-B-02-016765, Urethane compounds having an ethylene oxide skeleton described in JP-B-58-049860, JP-B-56-017654, JP-B-62-039417 and JP-B-62-039418 are also suitable. It is also preferable to use a polymerizable compound having an amino structure or a sulfide structure in the molecule described in JP-A-63-277653, JP-A-63-260909 and JP-A-01-105238.
- the polymerizable compound includes 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, Commercially available products such as T-600, AI-600, LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.) can also be used.
- the content of the polymerizable compound in the total solid content of the coloring composition is preferably 10 to 60% by mass.
- the upper limit is preferably 55% by mass or less, more preferably 50% by mass or less.
- the lower limit is preferably 20% by mass or more, more preferably 25% by mass or more.
- the coloring composition of the present invention may contain only one polymerizable compound, or may contain two or more polymerizable compounds. When two or more polymerizable compounds are included, the total amount thereof is preferably within the above range.
- the coloring composition of the present invention preferably contains a photopolymerization initiator.
- the photopolymerization initiator is not particularly limited and can be appropriately selected from known photopolymerization initiators. For example, compounds having photosensitivity to light in the ultraviolet region to the visible region are preferred.
- the photopolymerization initiator is preferably a photoradical polymerization initiator.
- photopolymerization initiators include halogenated hydrocarbon derivatives (e.g., compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.), acylphosphine compounds, hexaarylbiimidazole compounds, oxime compounds, organic peroxides, thio compounds, ketone compounds, aromatic onium salts, hydroxyalkylphenone compounds, aminoalkylphenone compounds, phenylglyoxylate compounds, and the like.
- halogenated hydrocarbon derivatives e.g., compounds having a triazine skeleton, compounds having an oxadiazole skeleton, etc.
- acylphosphine compounds e.g., acylphosphine compounds, hexaarylbiimidazole compounds, oxime compounds, organic peroxides, thio compounds, ketone compounds, aromatic onium salts, hydroxyalkylphenone compounds, aminoalkylphen
- the photopolymerization initiator is preferably at least one selected from oxime compounds, hydroxyalkylphenone compounds, aminoalkylphenone compounds, and acylphosphine compounds, and more preferably an oxime compound.
- the photopolymerization initiator compounds described in paragraphs 0065 to 0111 of JP-A-2014-130173, compounds described in Japanese Patent No. 6301489, MATERIAL STAGE 37-60p, vol. 19, No. 3, the peroxide photopolymerization initiator described in 2019, the photopolymerization initiator described in International Publication No. 2018/221177, the photopolymerization initiator described in International Publication No.
- Phenylglyoxylate compounds include phenylglyoxylic acid methyl esters.
- Commercially available products include Omnirad MBF (manufactured by IGM Resins B.V.) and Irgacure MBF (manufactured by BASF).
- Acylphosphine compounds include acylphosphine compounds described in Japanese Patent No. 4225898. Specific examples include bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide.
- Commercially available acylphosphine compounds include Omnirad 819, Omnirad TPO (manufactured by IGM Resins B.V.), Irgacure 819 and Irgacure TPO (manufactured by BASF).
- aminoalkylphenone compounds examples include aminoalkylphenone compounds described in JP-A-10-291969.
- Commercially available aminoalkylphenone compounds include Omnirad 907, Omnirad 369, Omnirad 369E, Omnirad 379, Omnirad 379EG (manufactured by IGM Resins B.V.), Irgacure 907, Irgacure 369, Irgacure 369E, and Irgacure 369E. , and Irgacure 379EG (manufactured by BASF).
- hydroxyalkylphenone compounds include compounds represented by the following formula (V).
- Formula (V) In the formula, Rv 1 represents a substituent, Rv 2 and Rv 3 each independently represent a hydrogen atom or a substituent, Rv 2 and Rv 3 may be bonded to each other to form a ring, m represents an integer of 0 to 5;
- the substituent represented by Rv 1 includes an alkyl group (preferably an alkyl group having 1 to 10 carbon atoms) and an alkoxy group (preferably an alkoxy group having 1 to 10 carbon atoms). Alkyl groups and alkoxy groups are preferably linear or branched, more preferably linear. The alkyl group and alkoxy group represented by Rv 1 may be unsubstituted or may have a substituent. Examples of substituents include a hydroxy group and a group having a hydroxyalkylphenone structure.
- the group having a hydroxyalkylphenone structure includes a group having a structure obtained by removing one hydrogen atom from the benzene ring to which Rv 1 in formula (V) is bonded or from Rv 1 .
- Rv2 and Rv3 each independently represent a hydrogen atom or a substituent.
- an alkyl group preferably an alkyl group having 1 to 10 carbon atoms
- Rv 2 and Rv 3 may combine with each other to form a ring (preferably a ring having 4 to 8 carbon atoms, more preferably an aliphatic ring having 4 to 8 carbon atoms).
- the alkyl group is preferably linear or branched, more preferably linear.
- hydroxyalkylphenone compounds include Omnirad 184, Omnirad 1173, Omnirad 2959, Omnirad 127 (manufactured by IGM Resins BV), Irgacure 184, Irgacure 1173, Irgacure 2959, Irgacure 127 (manufactured by Irgacure 127). made), etc.
- Examples of oxime compounds include compounds described in JP-A-2001-233842, compounds described in JP-A-2000-080068, compounds described in JP-A-2006-342166, J. Am. C. S. Compounds described in Perkin II (1979, pp.1653-1660); C. S. Compounds described in Perkin II (1979, pp.156-162), compounds described in Journal of Photopolymer Science and Technology (1995, pp.202-232), compounds described in JP-A-2000-066385, Compounds described in JP-A-2004-534797, compounds described in JP-A-2017-019766, compounds described in Patent No.
- oxime compounds include 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminobutane-2-one, 2-acetoxyiminopentane-3-one, 2-acetoxyimino-1-phenylpropan-1-one, 2-benzoyloxyimino-1-phenylpropan-1-one, 3-(4-toluenesulfonyloxy)iminobutan-2-one, and 2-ethoxycarbonyloxy and imino-1-phenylpropan-1-one.
- An oxime compound having a fluorene ring can also be used as the photopolymerization initiator.
- Specific examples of the oxime compound having a fluorene ring include compounds described in JP-A-2014-137466, compounds described in Japanese Patent No. 6636081, and compounds described in Korean Patent Publication No. 10-2016-0109444. be done.
- an oxime compound having a skeleton in which at least one benzene ring of the carbazole ring is a naphthalene ring can also be used.
- Specific examples of such oxime compounds include compounds described in WO2013/083505.
- An oxime compound having a fluorine atom can also be used as the photopolymerization initiator.
- Specific examples of the oxime compound having a fluorine atom include compounds described in JP-A-2010-262028, compounds 24, 36 to 40 described in JP-A-2014-500852, and JP-A-2013-164471. and the compound (C-3) of.
- An oxime compound having a nitro group can be used as the photopolymerization initiator.
- the oxime compound having a nitro group is also preferably a dimer.
- Specific examples of the oxime compound having a nitro group include the compounds described in paragraph numbers 0031 to 0047 of JP-A-2013-114249 and paragraph numbers 0008-0012 and 0070-0079 of JP-A-2014-137466; Compounds described in paragraphs 0007 to 0025 of Japanese Patent No. 4223071 and ADEKA Arkles NCI-831 (manufactured by ADEKA Corporation) can be mentioned.
- An oxime compound having a benzofuran skeleton can also be used as the photopolymerization initiator.
- Specific examples include OE-01 to OE-75 described in WO 2015/036910.
- an oxime compound in which a substituent having a hydroxyl group is bonded to the carbazole skeleton can also be used.
- Examples of such a photopolymerization initiator include the compounds described in International Publication No. 2019/088055.
- oxime compounds preferably used in the present invention are shown below, but the present invention is not limited to these.
- a photopolymerization initiator A1 having an absorption coefficient of 1.0 ⁇ 10 3 mL/g cm or more at a wavelength of 365 nm in methanol and a photopolymerization initiator A1 having an absorption coefficient of 365 nm in methanol at a wavelength of 365 nm
- the photopolymerization initiator A1 and the photopolymerization initiator A2 it is preferable to select and use a compound having the above absorption coefficient from among the above compounds.
- the absorption coefficient of the photopolymerization initiator at the above wavelength is a value measured as follows. That is, it was calculated by dissolving a photopolymerization initiator in methanol to prepare a measurement solution and measuring the absorbance of the above-described measurement solution. Specifically, the measurement solution described above is placed in a glass cell with a width of 1 cm, the absorbance is measured using an Agilent Technologies UV-Vis-NIR spectrometer (Cary 5000), and the following formula is applied to the wavelength 365 nm and the wavelength The extinction coefficient (mL/g ⁇ cm) at 254 nm was calculated. In the above formula, ⁇ is the extinction coefficient (mL/g ⁇ cm), A is the absorbance, c is the concentration of the photopolymerization initiator (g/mL), and l is the optical path length (cm).
- the absorption coefficient of the photopolymerization initiator A1 in methanol at a wavelength of 365 nm is 1.0 ⁇ 10 3 mL/g cm or more, preferably 1.0 ⁇ 10 4 mL/g cm or more, It is more preferably 1.1 ⁇ 10 4 mL/g ⁇ cm or more, still more preferably 1.2 ⁇ 10 4 to 1.0 ⁇ 10 5 mL/g ⁇ cm, and 1.3 ⁇ 10 4 It is more preferably 5.0 ⁇ 10 4 mL/g ⁇ cm, particularly preferably 1.5 ⁇ 10 4 to 3.0 ⁇ 10 4 mL/g ⁇ cm.
- the absorption coefficient of light with a wavelength of 254 nm of photopolymerization initiator A1 in methanol is preferably 1.0 ⁇ 10 4 to 1.0 ⁇ 10 5 mL/g ⁇ cm, and is preferably 1.5 ⁇ 10 It is more preferably 4 to 9.5 ⁇ 10 4 mL/g ⁇ cm, and even more preferably 3.0 ⁇ 10 4 to 8.0 ⁇ 10 4 mL/g ⁇ cm.
- oxime compounds As the photopolymerization initiator A1, oxime compounds, aminoalkylphenone compounds, and acylphosphine compounds are preferred, oxime compounds and acylphosphine compounds are more preferred, and oxime compounds are still more preferred. From the viewpoint of the above, oxime compounds containing fluorine atoms are particularly preferred.
- photopolymerization initiator A1 examples include 1,2-octanedione, 1-[4-(phenylthio)-,2-(O-benzoyloxime)] (commercially available products include Irgacure OXE01, BASF ), ethanone, 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-, 1-(O-acetyloxime) (commercially available products include, for example, Irgacure OXE02, BASF), and (C-7), (C-8), (C-13), (C-14), (C-17) shown in the specific examples of the above oxime compounds.
- the absorption coefficient of light with a wavelength of 365 nm in methanol of the photopolymerization initiator A2 is 1.0 ⁇ 10 2 mL/g ⁇ cm or less, and 10 to 1.0 ⁇ 10 2 mL/g ⁇ cm. is preferred, and 20 to 1.0 ⁇ 10 2 mL/g ⁇ cm is more preferred. Further, the difference between the absorption coefficient of light with a wavelength of 365 nm in methanol of the photopolymerization initiator A1 and the absorption coefficient of light with a wavelength of 365 nm in methanol of the photopolymerization initiator A2 is 9.0 ⁇ 10 2 mL.
- the absorption coefficient of light with a wavelength of 254 nm in methanol of the photopolymerization initiator A2 is 1.0 ⁇ 10 3 mL/g ⁇ cm or more, and is 1.0 ⁇ 10 3 to 1.0 ⁇ 10 6 mL. /g ⁇ cm, more preferably 5.0 ⁇ 10 3 to 1.0 ⁇ 10 5 mL/g ⁇ cm.
- hydroxyalkylphenone compounds, phenylglyoxylate compounds, aminoalkylphenone compounds and acylphosphine compounds are preferred, hydroxyalkylphenone compounds and phenylglyoxylate compounds are more preferred, and hydroxyalkylphenone compounds are further preferred. preferable.
- the hydroxyalkylphenone compound the compound represented by the above formula (V) is preferable.
- Specific examples of the photopolymerization initiator A2 include 1-hydroxy-cyclohexyl-phenyl-ketone, 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1- On and the like.
- Commercially available products of the photopolymerization initiator A2 include Omnirad 2959 (manufactured by IGM Resins B.V., hydroxyalkylphenone compound).
- the combination of the photopolymerization initiator A1 and the photopolymerization initiator A2 is preferably a combination in which the photopolymerization initiator A1 is an oxime compound and the photopolymerization initiator A2 is a hydroxyalkylphenone compound.
- a more preferred combination is an oxime compound
- the photopolymerization initiator A2 is a compound represented by the formula (V) described above
- the photopolymerization initiator A1 is an oxime compound containing a fluorine atom
- the photopolymerization initiator A2 is Especially preferred are combinations of compounds represented by formula (V) above.
- the content of the photopolymerization initiator in the total solid content of the coloring composition is preferably 3 to 25% by mass.
- the lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, still more preferably 8% by mass or more, even more preferably 9% by mass or more, and 10% by mass. % or more is particularly preferable.
- the upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less.
- the photopolymerization initiator may be used alone or in combination of two or more. When two or more are used in combination, the total amount thereof is preferably within the above range.
- the content M of the polymerizable compound in the total solids of the coloring composition, and the content I of the photopolymerization initiator in the total solids of the coloring composition is preferably 20 or less.
- the upper limit of the above ratio is preferably 10 or less, more preferably 5 or less, still more preferably 3 or less, and particularly preferably 2 or less.
- the lower limit of the above ratio is preferably 0.1 or more, more preferably 0.5 or more.
- the content of the oxime compound is preferably 3 to 25% by mass based on the total solid content of the coloring composition.
- the lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, still more preferably 8% by mass or more, even more preferably 9% by mass or more, and 10% by mass. % or more is particularly preferable.
- the upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less.
- An oxime compound may be used individually by 1 type, and may use 2 or more types together. When two or more are used in combination, the total amount thereof is preferably within the above range.
- the content M of the polymerizable compound in the total solid content of the coloring composition and the content IO of the oxime compound in the total solid content of the coloring composition on a mass% basis ratio (M/I O ) is preferably 20 or less.
- the upper limit of the above ratio is preferably 10 or less, more preferably 5 or less, still more preferably 3 or less, and particularly preferably 2 or less.
- the lower limit of the above ratio is preferably 0.1 or more, more preferably 0.5 or more.
- the content of the photopolymerization initiator A1 is 3 to 25 wt% in the total solid content of the coloring composition. is preferred.
- the lower limit is preferably 5% by mass or more, more preferably 7.5% by mass or more, still more preferably 8% by mass or more, even more preferably 9% by mass or more, and 10% by mass. % or more is particularly preferable.
- the upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less.
- the content M of the polymerizable compound in the total solids of the coloring composition and the content of the photopolymerization initiator A1 in the total solids of the coloring composition I A1 is preferably 20 or less.
- the upper limit of the above ratio is preferably 10 or less, more preferably 5 or less, still more preferably 3 or less, and particularly preferably 2 or less.
- the lower limit of the above ratio is preferably 0.1 or more, more preferably 0.5 or more.
- the content of the photopolymerization initiator A2 is 0.1 to 10.0 in the total solid content of the coloring composition. % by mass is preferred.
- the lower limit is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and even more preferably 1.5% by mass or more.
- the upper limit is preferably 9.0% by mass or less, more preferably 8.0% by mass or less, and even more preferably 7.0% by mass or less. If the content of the photopolymerization initiator A2 is within the above range, a cured film having more excellent light resistance can be formed.
- the coloring composition of the present invention when the photopolymerization initiator A1 and the photopolymerization initiator A2 described above are used as photopolymerization initiators, the coloring composition of the present invention contains 100 parts by mass of the photopolymerization initiator A1. On the other hand, it is preferable to contain 50 to 200 parts by mass of the photopolymerization initiator A2.
- the upper limit is preferably 175 parts by mass or less, more preferably 150 parts by mass or less.
- the lower limit is preferably 60 parts by mass or more, more preferably 70 parts by mass or more.
- a cured film having excellent properties such as light resistance can be formed by a low-temperature process (for example, a process at a temperature of 150° C. or lower, preferably 120° C. or lower throughout the entire process).
- the total amount of each preferably satisfies the above requirements.
- the photopolymerization initiator A1 and photopolymerization initiator A2 described above as a photopolymerization initiator when using the photopolymerization initiator A1 and photopolymerization initiator A2 described above as a photopolymerization initiator, the photopolymerization initiator A1 and photopolymerization initiation in the total solid content of the coloring composition
- the total content with agent A2 is preferably 3.1 to 25% by mass.
- the lower limit is preferably 4% by mass or more, preferably 5% by mass or more, more preferably 7.5% by mass or more, further preferably 8% by mass or more, and 9% by mass. It is more preferably 10% by mass or more, and particularly preferably 10% by mass or more.
- the upper limit is preferably 20% by mass or less, more preferably 17.5% by mass or less, and even more preferably 15% by mass or less.
- the coloring composition of the present invention may contain photopolymerization initiators other than photopolymerization initiator A1 and photopolymerization initiator A2 (hereinafter also referred to as other photopolymerization initiators) as photopolymerization initiators, It is preferred that substantially no other photopolymerization initiator is contained.
- the content of the other photoinitiator is 1 part by mass with respect to the total 100 parts by mass of the photoinitiator A1 and the photoinitiator A2 It is more preferably 0.5 parts by mass or less, still more preferably 0.1 parts by mass or less, and still more preferably does not contain other photopolymerization initiators.
- the coloring composition of the present invention preferably contains a solvent.
- An organic solvent is mentioned as a solvent.
- the solvent is basically not particularly limited as long as it satisfies the solubility of each component and the applicability of the coloring composition.
- Organic solvents include ester-based solvents, ketone-based solvents, alcohol-based solvents, amide-based solvents, ether-based solvents, and hydrocarbon-based solvents. For these details, reference can be made to paragraph 0223 of WO2015/166779, the content of which is incorporated herein. Ester-based solvents substituted with cyclic alkyl groups and ketone-based solvents substituted with cyclic alkyl groups can also be preferably used.
- organic solvents include polyethylene glycol monomethyl ether, dichloromethane, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2 -heptanone, 3-pentanone, 4-heptanone, cyclohexanone, 2-methylcyclohexanone, 3-methylcyclohexanone, 4-methylcyclohexanone, cycloheptanone, cyclooctanone, cyclohexyl acetate, cyclopentanone, ethylcarbitol acetate, butylcarbylate tall acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, 3-methoxy-N,N-dimethylpropanamide, 3-butoxy-N,N-di
- aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, etc.) as organic solvents may be better reduced for environmental reasons (e.g., 50 mass ppm (parts per million), 10 mass ppm or less, or 1 mass ppm or less).
- an organic solvent with a low metal content it is preferable to use an organic solvent with a low metal content, and the metal content of the organic solvent is preferably, for example, 10 mass ppb (parts per billion) or less. If necessary, a ppt (parts per trillion) level solvent may be used, and such a high-purity solvent is provided by, for example, Toyo Gosei Co., Ltd. (Chemical Daily, November 13, 2015).
- Examples of methods for removing impurities such as metals from organic solvents include distillation (molecular distillation, thin film distillation, etc.) and filtration using a filter.
- the filter pore size of the filter used for filtration is preferably 10 ⁇ m or less, more preferably 5 ⁇ m or less, and even more preferably 3 ⁇ m or less.
- the material of the filter is preferably polytetrafluoroethylene, polyethylene or nylon.
- the organic solvent may contain isomers (compounds with the same number of atoms but different structures). Moreover, only one isomer may be contained, or a plurality of isomers may be contained.
- the content of peroxide in the organic solvent is preferably 0.8 mmol/L or less, and more preferably the organic solvent does not substantially contain peroxide.
- the content of the solvent in the coloring composition is preferably 60-95% by mass.
- the upper limit is preferably 90% by mass or less, more preferably 87.5% by mass or less, and even more preferably 85% by mass or less.
- the lower limit is preferably 65% by mass or more, more preferably 70% by mass or more, and even more preferably 75% by mass or more.
- Solvents may be used singly or in combination of two or more. When two or more of them are used in combination, it is preferable that the total amount thereof falls within the above range.
- the colored composition of the present invention does not substantially contain environmentally regulated substances.
- substantially free of environmentally regulated substances means that the content of environmentally regulated substances in the colored composition is 50 ppm by mass or less, preferably 30 ppm by mass or less. , is more preferably 10 mass ppm or less, and particularly preferably 1 mass ppm or less.
- Environmental control substances include, for example, benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene.
- distilling off a small amount of environmentally regulated substances it is also useful to azeotrope with a solvent having a boiling point equivalent to that of the solvent in order to increase the efficiency.
- a polymerization inhibitor or the like is added and distilled off under reduced pressure in order to suppress the radical polymerization reaction from progressing during the vacuum distillation and the intermolecular cross-linking.
- These distillation methods are the raw material stage, the reaction product of the raw materials (for example, the resin solution or polyfunctional monomer solution after polymerization), or the colored composition stage produced by mixing these compounds. is possible even at the stage of
- the coloring composition of the present invention can contain a pigment derivative.
- Pigment derivatives include compounds having a structure in which an acid group or a basic group is bonded to a pigment skeleton.
- Dye skeletons constituting pigment derivatives include quinoline dye skeletons, benzimidazolone dye skeletons, benzoisoindole dye skeletons, benzothiazole dye skeletons, iminium dye skeletons, squarylium dye skeletons, croconium dye skeletons, oxonol dye skeletons, and pyrrolopyrrole dye skeletons.
- diketopyrrolopyrrole dye skeleton azo dye skeleton, azomethine dye skeleton, phthalocyanine dye skeleton, naphthalocyanine dye skeleton, anthraquinone dye skeleton, quinacridone dye skeleton, dioxazine dye skeleton, perinone dye skeleton, perylene dye skeleton, thioindigo dye skeleton, Isoindoline dye skeletons, isoindolinone dye skeletons, quinophthalone dye skeletons, iminium dye skeletons, dithiol dye skeletons, triarylmethane dye skeletons, pyrromethene dye skeletons, and the like can be mentioned.
- the acid group includes a carboxy group, a sulfo group, a phosphoric acid group, a boronic acid group, a carboxylic acid amide group, a sulfonic acid amide group, an imidic acid group and salts thereof.
- Atoms or atomic groups constituting the salt include alkali metal ions (Li + , Na + , K + etc.), alkaline earth metal ions (Ca 2+ , Mg 2+ etc.), ammonium ions, imidazolium ions, pyridinium ions, phosphonium ion and the like.
- the carboxylic acid amide group a group represented by —NHCOR X1 is preferable.
- sulfonic acid amide group a group represented by —NHSO 2 R X2 is preferable.
- the imidic acid group is preferably a group represented by —SO 2 NHSO 2 R X3 , —CONHSO 2 R X4 , —CONHCOR X5 or —SO 2 NHCOR X6 , more preferably —SO 2 NHSO 2 R X3 .
- R X1 to R X6 each independently represent an alkyl group or an aryl group.
- the alkyl groups and aryl groups represented by R X1 to R X6 may have substituents.
- the substituent is preferably a halogen atom, more preferably a fluorine atom.
- Basic groups include amino groups, pyridinyl groups and salts thereof, salts of ammonium groups, and phthalimidomethyl groups.
- Atoms or atomic groups constituting salts include hydroxide ions, halogen ions, carboxylate ions, sulfonate ions, and phenoxide ions.
- a pigment derivative having excellent visible transparency (hereinafter also referred to as a transparent pigment derivative) can also be used as the pigment derivative.
- the maximum value ( ⁇ max) of the molar extinction coefficient of the transparent pigment derivative in the wavelength region of 400 to 700 nm is preferably 3000 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or less, and 1000 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or less. is more preferable, and 100 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or less is even more preferable.
- the lower limit of ⁇ max is, for example, 1 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or more, and may be 10 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or more.
- pigment derivatives include the compounds described in the examples described later, JP-A-56-118462, JP-A-63-264674, JP-A-01-217077, and JP-A-03-009961. , JP-A-03-026767, JP-A-03-153780, JP-A-03-045662, JP-A-04-285669, JP-A-06-145546, JP-A-06-212088, Patent JP-A-06-240158, JP-A-10-030063, JP-A-10-195326, paragraph numbers 0086 to 0098 of WO 2011/024896, paragraph numbers 0063 to 0094 of WO 2012/102399 , Paragraph No.
- the content of the pigment derivative is preferably 0.1 to 30 parts by mass with respect to 100 parts by mass of the pigment.
- the lower limit of this range is more preferably 0.25 parts by mass or more, more preferably 0.5 parts by mass or more, particularly preferably 0.75 parts by mass or more, and 1 part by mass or more. More preferably.
- the upper limit of this range is more preferably 25 parts by mass or less, even more preferably 20 parts by mass or less, and particularly preferably 15 parts by mass or less.
- the storage stability of the coloring composition can be further improved. Only one pigment derivative may be used, or two or more pigment derivatives may be used in combination. When two or more of them are used in combination, it is preferable that the total amount thereof falls within the above range.
- the coloring composition of the present invention can also contain a polyalkyleneimine.
- Polyalkyleneimines are used, for example, as dispersing aids.
- a dispersing aid is a material for enhancing dispersibility of a pigment in a coloring composition.
- Polyalkyleneimine is a polymer obtained by ring-opening polymerization of alkyleneimine.
- the polyalkyleneimine is preferably a polymer having a branched structure each containing a primary amino group, a secondary amino group and a tertiary amino group.
- the number of carbon atoms in the alkyleneimine is preferably 2 to 6, more preferably 2 to 4, still more preferably 2 or 3, and particularly preferably 2.
- the molecular weight of the polyalkyleneimine is preferably 200 or more, more preferably 250 or more.
- the upper limit is preferably 100,000 or less, more preferably 50,000 or less, even more preferably 10,000 or less, and particularly preferably 2,000 or less.
- the molecular weight of the polyalkyleneimine when the molecular weight can be calculated from the structural formula, the molecular weight of the polyalkyleneimine is the value calculated from the structural formula.
- the molecular weight of the specific amine compound cannot be calculated from the structural formula or is difficult to calculate, the value of the number average molecular weight measured by the boiling point elevation method is used.
- the value of the number average molecular weight measured by the viscosity method is used.
- the value of the number average molecular weight in terms of polystyrene measured by the GPC (gel permeation chromatography) method is used.
- the amine value of the polyalkyleneimine is preferably 5 mmol/g or more, more preferably 10 mmol/g or more, and even more preferably 15 mmol/g or more.
- alkyleneimine examples include ethyleneimine, propyleneimine, 1,2-butyleneimine, 2,3-butyleneimine and the like, preferably ethyleneimine or propyleneimine, more preferably ethyleneimine. preferable. It is particularly preferred that the polyalkyleneimine is polyethyleneimine. In addition, the polyethyleneimine preferably contains 10 mol% or more, more preferably 20 mol% or more, of the primary amino group with respect to the total of the primary amino group, the secondary amino group and the tertiary amino group. , more preferably 30 mol % or more.
- Commercial products of polyethyleneimine include Epomin SP-003, SP-006, SP-012, SP-018, SP-200, P-1000 (manufactured by Nippon Shokubai Co., Ltd.).
- the content of polyalkyleneimine in the total solid content of the coloring composition is preferably 0.1 to 5% by mass.
- the lower limit is preferably 0.2% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more.
- the upper limit is preferably 4.5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less.
- the content of the polyalkyleneimine is preferably 0.5 to 20 parts by mass with respect to 100 parts by mass of the pigment.
- the lower limit is preferably 0.6 parts by mass or more, more preferably 1 part by mass or more, and even more preferably 2 parts by mass or more.
- the upper limit is preferably 10 parts by mass or less, more preferably 8 parts by mass or less. Only one kind of polyalkyleneimine may be used, or two or more kinds thereof may be used. When two or more types are used, the total amount thereof is preferably within the above range.
- a curing accelerator may be added to the coloring composition of the present invention for the purpose of accelerating the reaction of the polymerizable compound or lowering the curing temperature.
- curing accelerators include polyfunctional thiol compounds having two or more mercapto groups in the molecule.
- a polyfunctional thiol compound may be added for the purpose of improving stability, odor, resolution, developability, adhesion and the like.
- the polyfunctional thiol compound is preferably a secondary alkanethiol, more preferably a compound represented by formula (T1).
- T1 In formula (T1), n represents an integer of 2 to 4, and L represents a divalent to tetravalent linking group.
- the linking group L is preferably an aliphatic group having 2 to 12 carbon atoms, n is 2, and L is particularly preferably an alkylene group having 2 to 12 carbon atoms.
- curing accelerators include methylol compounds (for example, compounds exemplified as cross-linking agents in paragraph number 0246 of JP-A-2015-034963), amines, phosphonium salts, amidine salts, amide compounds (above, for example Curing agent described in paragraph number 0186 of JP-A-2013-041165), a base generator (e.g., an ionic compound described in JP-A-2014-055114), a cyanate compound (e.g., JP-A-2012-150180 Compounds described in paragraph number 0071 of the publication), alkoxysilane compounds (e.g., alkoxysilane compounds having an epoxy group described in JP-A-2011-253054), onium salt compounds (e.g., JP-A-2015-034963.
- methylol compounds for example, compounds exemplified as cross-linking agents in paragraph number 0246 of JP-A-2015-034963
- amines for example,
- the content of the curing accelerator in the total solid content of the coloring composition is preferably 0.3 to 8.9% by mass, more preferably 0.8 to 6.4% by mass.
- the coloring composition of the present invention can contain a silane coupling agent.
- a silane coupling agent a silane compound having at least two functional groups with different reactivity in one molecule is preferred.
- the silane coupling agent contains at least one group selected from a vinyl group, an epoxy group, a styrene group, a methacrylic group, an amino group, an isocyanurate group, a ureido group, a mercapto group, a sulfide group, and an isocyanate group, and an alkoxy group. is preferred.
- silane coupling agents include N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-602), N-2-(aminoethyl)-3 -Aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-603), 3-aminopropyltrimethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-903), 3-aminopropyltriethoxysilane (Shin-Etsu Chemical Industry Co., Ltd., KBE-903), 3-methacryloxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., KBM-503), 3-glycidoxypropyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd., K
- the content of the silane coupling agent in the total solid content of the coloring composition is preferably 0.001 to 20% by mass, more preferably 0.01 to 10% by mass, 0.1% by mass to 5% by mass is further preferable.
- the coloring composition of the present invention may contain only one type of silane coupling agent, or may contain two or more types thereof. When two or more kinds are included, it is preferable that the total amount thereof is within the above range.
- the coloring composition of the present invention can contain a polymerization inhibitor.
- Polymerization inhibitors include hydroquinone, p-methoxyphenol, di-t-butyl-p-cresol, pyrogallol, t-butylcatechol, benzoquinone, 4,4′-thiobis(3-methyl-6-t-butylphenol), 2,2′-methylenebis(4-methyl-6-t-butylphenol), N-nitrosophenylhydroxyamine salts (ammonium salts, cerous salts, etc.) and the like.
- the content of the polymerization inhibitor in the total solid content of the coloring composition is preferably 0.0001 to 5% by mass.
- the coloring composition of the present invention may contain only one polymerization inhibitor, or may contain two or more polymerization inhibitors. When two or more kinds are included, it is preferable that the total amount thereof is within the above range.
- the coloring composition of the present invention can contain an ultraviolet absorber.
- a conjugated diene compound, an aminodiene compound, a salicylate compound, a benzophenone compound, a benzotriazole compound, an acrylonitrile compound, a hydroxyphenyltriazine compound, an indole compound, a triazine compound, or the like can be used as the ultraviolet absorber.
- paragraph numbers 0052 to 0072 of JP-A-2012-208374, paragraph numbers 0317-0334 of JP-A-2013-068814, and paragraph numbers 0061-0080 of JP-A-2016-162946 are described.
- UV absorbers examples include UV-503 (manufactured by Daito Chemical Co., Ltd.), Tinuvin series and Uvinul series manufactured by BASF, and Sumisorb series manufactured by Sumika Chemtex Co., Ltd. .
- UV-503 manufactured by Daito Chemical Co., Ltd.
- Tinuvin series and Uvinul series manufactured by BASF and Sumisorb series manufactured by Sumika Chemtex Co., Ltd.
- MYUA series made from Miyoshi oil and fats (Chemical Daily, February 1, 2016) is mentioned.
- the ultraviolet absorber is a compound described in paragraph numbers 0049 to 0059 of Japanese Patent No. 6268967, a compound described in paragraph numbers 0059 to 0076 of WO 2016/181987, and WO 2020/137819.
- a thioaryl group-substituted benzotriazole-type ultraviolet absorber described in can also be used.
- the content of the ultraviolet absorber in the total solid content of the coloring composition is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.1 to 3% by mass. Only one type of ultraviolet absorber may be used, or two or more types may be used. When two or more kinds are used, the total amount is preferably within the above range.
- the coloring composition of the present invention can contain a surfactant.
- a surfactant various surfactants such as fluorine-based surfactants, nonionic surfactants, cationic surfactants, anionic surfactants and silicone surfactants can be used.
- Surfactants include those described in paragraphs 0238-0245 of WO2015/166779, the contents of which are incorporated herein.
- the surfactant is preferably a fluorosurfactant.
- a fluorine-based surfactant in the coloring composition, the liquid properties (particularly fluidity) can be further improved, and the liquid saving property can be further improved.
- a silicone-based surfactant as the surfactant from the viewpoint of environmental friendliness.
- the fluorine content in the fluorine-based surfactant is preferably 3-40% by mass, more preferably 5-30% by mass, and particularly preferably 7-25% by mass.
- a fluorosurfactant having a fluorine content within this range is effective in terms of uniformity of the thickness of the coating film and saving liquid, and has good solubility in the coloring composition.
- JP 2014-041318 Paragraph Nos. 0060 to 0064 (corresponding International Publication No. 2014/017669 Paragraph Nos. 0060 to 0064) surfactants described in, JP 2011- Examples include surfactants described in paragraphs 0117 to 0132 of JP-A-132503 and surfactants described in JP-A-2020-008634, the contents of which are incorporated herein.
- Commercially available fluorosurfactants include Megafac F-171, F-172, F-173, F-176, F-177, F-141, F-142, F-143 and F-144.
- Fluorine-based surfactants also include acrylic compounds that have a molecular structure with a functional group containing a fluorine atom, and when heat is applied, the portion of the functional group containing a fluorine atom is cleaved and the fluorine atom volatilizes. It can be used preferably.
- fluorine-based surfactants include Megafac DS series manufactured by DIC Corporation (The Chemical Daily (February 22, 2016), Nikkei Sangyo Shimbun (February 23, 2016)), for example, Megafac and DS-21.
- fluorosurfactant it is also preferable to use a polymer of a fluorine atom-containing vinyl ether compound having a fluorinated alkyl group or a fluorinated alkylene ether group and a hydrophilic vinyl ether compound as the fluorosurfactant.
- fluorosurfactants include fluorosurfactants described in JP-A-2016-216602, the contents of which are incorporated herein.
- a block polymer can also be used as the fluorosurfactant.
- the fluorosurfactant has 2 or more (preferably 5 or more) repeating units derived from a (meth)acrylate compound having a fluorine atom and an alkyleneoxy group (preferably an ethyleneoxy group or a propyleneoxy group) (meta).
- a fluorine-containing polymer compound containing a repeating unit derived from an acrylate compound can also be preferably used.
- the fluorine-containing surfactants described in paragraphs 0016 to 0037 of JP-A-2010-032698 and the following compounds are also exemplified as fluorine-based surfactants used in the present invention.
- the weight average molecular weight of the above compound is preferably 3000-50000, for example 14000. In the above compounds, % indicating the ratio of repeating units is mol %.
- a fluoropolymer having an ethylenically unsaturated bond-containing group in a side chain can also be used as the fluorosurfactant.
- Specific examples include compounds described in paragraph numbers 0050 to 0090 and paragraph numbers 0289 to 0295 of JP-A-2010-164965, MEGAFACE RS-101, RS-102 and RS-718K manufactured by DIC Corporation, and RS-72-K.
- compounds described in paragraphs 0015 to 0158 of JP-A-2015-117327 can also be used.
- a fluorine-containing imide salt compound represented by formula (fi-1) is a surfactant.
- m represents 1 or 2
- n represents an integer of 1 to 4
- a represents 1 or 2
- X a + is a valent metal ion, primary ammonium ion, Represents secondary ammonium ion, tertiary ammonium ion, quaternary ammonium ion or NH4 + .
- Nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane and their ethoxylates and propoxylates (e.g., glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, Polyoxyethylene oleyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether, polyethylene glycol dilaurate, polyethylene glycol distearate, sorbitan fatty acid ester, Pluronic L10, L31, L61, L62, 10R5, 17R2, 25R2 (BASF company), Tetronic 304, 701, 704, 901, 904, 150R1 (manufactured by BASF), Solsperse 20000 (manufactured by Nippon Lubrizol Co., Ltd.), NCW-101, NCW-1001, NCW-1002 (Wako Pure
- silicone-based surfactants include DC3PA, SH7PA, DC11PA, SH21PA, SH28PA, SH29PA, SH30PA, SH8400, SH8400 FLUID, FZ-2122, 67 Additive, 74 Additive, M Additive, SF8419 OIL (the above, Dow ⁇ Toray Industries, Inc.), TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (manufactured by Momentive Performance Materials), KP-341, KF-6000, KF- 6001, KF-6002, KF-6003 (manufactured by Shin-Etsu Chemical Co., Ltd.), BYK-307, BYK-322, BYK-323, BYK-330, BYK-3760, BYK-UV3510 (manufactured by BYK-Chemie Co., Ltd.) ) and the like.
- the content of the surfactant in the total solid content of the coloring composition is preferably 0.001% by mass to 5.0% by mass, more preferably 0.005% by mass to 3.0% by mass. Only one type of surfactant may be used, or two or more types may be used. When two or more kinds are used, the total amount is preferably within the above range.
- additives such as fillers, adhesion promoters, antioxidants, anti-aggregation agents and the like can be added to the coloring composition of the present invention, if necessary.
- additives include additives described in paragraphs 0155 to 0156 of JP-A-2004-295116, the contents of which are incorporated herein.
- the antioxidant for example, a phenol compound, a phosphorus compound (for example, the compound described in paragraph number 0042 of JP-A-2011-090147), a thioether compound, and the like can be used.
- Adekastab series manufactured by ADEKA Corporation (AO-20, AO-30, AO-40, AO-50, AO-50F, AO-60, AO-60G, AO-80, AO- 330, etc.).
- antioxidants polyfunctional hindered amine antioxidants described in International Publication No. 2017/006600, antioxidants described in International Publication No. 2017/164024, paragraph numbers 0023 to 6268967 of Japanese Patent No. 6268967 0048 may also be used. Only one kind of antioxidant may be used, or two or more kinds thereof may be used.
- the coloring composition of the present invention may contain a latent antioxidant, if desired.
- the latent antioxidant is a compound in which the site functioning as an antioxidant is protected with a protective group, and is heated at 100 to 250°C, or heated at 80 to 200°C in the presence of an acid/base catalyst.
- a compound that functions as an antioxidant by removing the protective group by the reaction is exemplified.
- Specific examples of the latent antioxidant include compounds described in International Publication No. 2014/021023, International Publication No. 2017/030005, and JP-A-2017-008219.
- Commercially available products include ADEKA Arkles GPA-5001 (manufactured by ADEKA Co., Ltd.).
- the colored composition of the present invention may be included.
- the sensitizer and light stabilizer described in paragraph 0078 of JP-A-2004-295116 the thermal polymerization inhibitor described in paragraph 0081 of the same publication
- JP-A-2018-091940 A storage stabilizer described in paragraph 0242 of the publication may be included.
- perfluoroalkylsulfonic acid and its salts may be regulated.
- perfluoroalkylsulfonic acid especially perfluoroalkylsulfonic acid having 6 to 8 carbon atoms in the perfluoroalkyl group
- fluoroalkylcarboxylic acid especially perfluoroalkylcarboxylic acid having 6 to 8 carbon atoms in the perfluoroalkyl group
- its salt is 0.01ppb to 1,000ppb with respect to the total solid content of the coloring composition.
- the coloring composition of the present invention may be substantially free of perfluoroalkylsulfonic acid and its salts and perfluoroalkylcarboxylic acid and its salts.
- a compound that can substitute for perfluoroalkylsulfonic acid and its salt and a compound that can substitute for perfluoroalkylcarboxylic acid and its salt, perfluoroalkylsulfonic acid and its salt, and perfluoroalkylcarboxylic acid and salts thereof may be selected.
- Examples of compounds that can substitute for regulated compounds include compounds that are excluded from the scope of regulation due to differences in the number of carbon atoms in perfluoroalkyl groups. However, the above content does not prevent the use of perfluoroalkylsulfonic acid and its salts, and perfluoroalkylcarboxylic acid and its salts.
- the coloring composition of the present invention may contain perfluoroalkylsulfonic acid and its salts and perfluoroalkylcarboxylic acid and its salts within the maximum permissible range.
- the storage container for the coloring composition of the present invention is not particularly limited, and known storage containers can be used.
- a storage container a multi-layer bottle whose inner wall is composed of 6 types and 6 layers of resins and a bottle with a 7-layer structure of 6 types of resins for the purpose of suppressing contamination of raw materials and coloring compositions. It is also preferred to use Examples of such a container include the container described in JP-A-2015-123351.
- the inner wall of the container is preferably made of glass, stainless steel, or the like for the purpose of preventing metal elution from the inner wall of the container, enhancing the storage stability of the composition, and suppressing deterioration of components.
- the coloring composition of the present invention can be produced by mixing the aforementioned components.
- all components may be dissolved and / or dispersed in a solvent at the same time to produce a colored composition, and if necessary, each component may be appropriately mixed into two or more solutions or dispersions. , these may be mixed at the time of use (at the time of application) to produce a colored composition.
- a process of dispersing particles such as pigments may be included in the production of the coloring composition.
- mechanical forces used for dispersing pigments include compression, squeezing, impact, shearing, cavitation, and the like.
- Specific examples of these processes include bead mills, sand mills, roll mills, ball mills, paint shakers, microfluidizers, high speed impellers, sand grinders, flow jet mixers, high pressure wet atomization, ultrasonic dispersion, and the like.
- 2015-157893 can be suitably used.
- the particles may be made finer in the salt milling step.
- Materials, equipment, processing conditions, etc. used in the salt milling process can be referred to, for example, Japanese Patent Application Laid-Open Nos. 2015-194521 and 2012-046629.
- any filter that has been conventionally used for filtration or the like can be used without particular limitation.
- fluororesins such as polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF)
- polyamide resins such as nylon (eg nylon-6, nylon-6,6)
- polyolefin resins such as polyethylene and polypropylene (PP) (including high-density, ultra-high-molecular-weight polyolefin resin) and other materials.
- PP polypropylene
- nylon including high density polypropylene
- nylon including high density polypropylene
- the pore size of the filter is preferably 0.01-7.0 ⁇ m, more preferably 0.01-3.0 ⁇ m, and even more preferably 0.05-0.5 ⁇ m. If the pore diameter of the filter is within the above range, fine foreign matter can be removed more reliably.
- the pore size value of the filter reference can be made to the filter manufacturer's nominal value.
- Various filters provided by Nihon Pall Co., Ltd. (DFA4201NIEY, DFA4201NAEY, DFA4201J006P, etc.), Advantech Toyo Co., Ltd., Nippon Entegris Co., Ltd. (former Japan Microlith Co., Ltd.), Kitz Micro Filter Co., Ltd., etc. can be used as the filter. .
- a fiber-like filter medium As the filter.
- fibrous filter media include polypropylene fibers, nylon fibers, and glass fibers.
- Commercially available products include SBP type series (SBP008, etc.), TPR type series (TPR002, TPR005, etc.), and SHPX type series (SHPX003, etc.) manufactured by Roki Techno.
- filters different filters (eg, a first filter and a second filter, etc.) may be combined. At that time, filtration with each filter may be performed only once, or may be performed twice or more. Also, filters with different pore sizes within the range described above may be combined. Further, the filtration with the first filter may be performed only on the dispersion liquid, and after mixing other components, the filtration with the second filter may be performed.
- the cured film of the present invention is a film obtained by curing the colored composition of the present invention described above.
- the cured film of the present invention can be used for color filters and the like. Specifically, it can be preferably used as a colored layer (pixel) of a color filter, and more preferably used as a blue pixel.
- the film thickness of the cured film of the present invention can be appropriately adjusted according to the purpose, but is preferably 0.5 to 3.0 ⁇ m.
- the lower limit is preferably 0.8 ⁇ m or more, more preferably 1.0 ⁇ m or more, and even more preferably 1.1 ⁇ m or more.
- the upper limit is preferably 2.5 ⁇ m or less, more preferably 2.0 ⁇ m or less, and even more preferably 1.8 ⁇ m or less.
- the cured film of the present invention preferably has an absorbance of 17 or more, more preferably 19 or more, and more preferably 21 or more when the absorbance of light of a wavelength of 445 nm is 1. preferable.
- the upper limit is not particularly limited, it can be 35 or less.
- the cured film of the present invention preferably has a transmittance peak top in the wavelength range of 440 to 460 nm.
- the aforementioned peak top preferably exists in the wavelength range of 442 to 458 nm, more preferably in the wavelength range of 445 to 455 nm.
- the cured film of the present invention preferably has a maximum transmittance of 74% or more, more preferably 77% or more, and more preferably 80% or more for light in the wavelength range of 440 to 460 nm. More preferred.
- the average transmittance of the cured film of the present invention to light in the wavelength range of 440 to 460 nm is preferably 70% or more, more preferably 74% or more, and even more preferably 78% or more. .
- the transmittance of the cured film of the present invention to light with a wavelength of 445 nm is preferably 74% or more, more preferably 77% or more, and even more preferably 80% or more.
- the transmittance of the cured film of the present invention to light with a wavelength of 535 nm is preferably 12% or less, more preferably 10% or less, and even more preferably 8% or less.
- the average transmittance of the cured film of the present invention to light in the wavelength range of 530 to 550 nm is preferably 10% or less, more preferably 8% or less, and even more preferably 6% or less.
- the color filter of the present invention has the cured film of the present invention described above. Preferably, it has the cured film of the present invention as a colored pixel of a color filter, more preferably as a green pixel.
- the color filter of the present invention can be used for solid-state imaging devices and display devices.
- the color filter of the present invention preferably has colored pixels of other hues in addition to the pixels of the cured film of the present invention. Colored pixels of other hues include green pixels, red pixels, yellow pixels, magenta pixels, cyan pixels, and the like.
- a preferred embodiment of the color filter of the present invention includes a mode having blue pixels, red pixels, and green pixels each made of the cured film of the present invention.
- the color filter may have a structure in which each color pixel is embedded in a space partitioned by partition walls, for example, in a grid pattern. In this case, the partition wall preferably has a lower refractive index than each color pixel. Moreover, the partition may be formed with the configuration described in US Patent Application Publication No. 2018/0040656.
- the red pixels that are preferably used in combination with the pixels of the cured film of the present invention preferably contain a red colorant.
- the content of the red colorant in the colorant contained in the red pixel is preferably 30% by mass or more, more preferably 40% by mass or more.
- the upper limit of the content of the red colorant in the colorant contained in the red pixel may be 100% by mass, 99% by mass or less, 95% by mass or less, or 90% by mass. % or less.
- the red pixel preferably contains 40% by mass or more of the red colorant, more preferably 50% by mass or more, and even more preferably 60% by mass or more.
- the upper limit of the content of the red colorant is preferably 80% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less.
- a red coloring agent C.I. I. Pigment Red 1,2,3,4,5,6,7,9,10,14,17,22,23,31,38,41,48:1,48:2,48:3,48:4, 49, 49:1, 49:2, 52:1, 52:2, 53:1, 57:1, 60:1, 63:1, 66, 67, 81:1, 81:2, 81:3, 83,88,90,105,112,119,122,123,144,146,149,150,155,166,168,169,170,171,172,175,176,177,178,179,184, 185, 187, 188, 190, 200, 202, 206, 207, 208, 209, 210, 216, 220, 224, 226, 242, 246, 254, 255, 264, 269,
- Pigment Red 122, 177, 179, 202, 254, 264, 269 and 272 are preferred, and C.I. I. Pigment Red 177, 179, 202, 254, 264 and 272 are more preferred, and C.I. I. Pigment Red 177, 254, 264 are more preferred.
- the red pixel preferably contains a yellow colorant in addition to the red colorant.
- the content of the yellow colorant is preferably 3 to 60 parts by mass, more preferably 5 to 50 parts by mass, and 10 to 40 parts by mass with respect to 100 parts by mass of the red colorant. More preferred.
- a yellow colorant C.I. I.
- the red pixel preferably has a maximum transmittance of 5% or less, more preferably 3% or less, and even more preferably 1% or less for light with a wavelength of 400 to 550 nm.
- the average transmittance for light with a wavelength of 400 to 550 nm is preferably 3% or less, more preferably 1% or less, and even more preferably 0.5% or less.
- the minimum transmittance for light with a wavelength of 600 to 700 nm is preferably 10% or more, more preferably 25% or more, and even more preferably 40% or more.
- the average transmittance for light with a wavelength of 600 to 700 nm is preferably 80% or more, more preferably 90% or more, and even more preferably 95% or more.
- the green pixels that are preferably used in combination with the pixels of the cured film of the present invention preferably contain a green colorant.
- the content of the green colorant in the colorant contained in the green pixel is preferably 40% by mass or more, more preferably 60% by mass or more.
- the green pixel preferably contains 20% by mass or more of the blue colorant, more preferably 25% by mass or more, and even more preferably 30% by mass or more.
- the upper limit of the content of the green colorant is preferably 80% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less.
- As a green coloring agent C.I. I. Pigment Green 7, 36, 58, 59, 62, 63, 65 and other green pigments; I. Pigment Green 7, 36, 58 and 65 are preferred, C.I. I. Pigment Green 7 and 36 are more preferred.
- the green pixel more preferably contains a yellow colorant in addition to the green colorant.
- the content of the yellow colorant is preferably 10 to 90 parts by mass, more preferably 20 to 75 parts by mass, and 30 to 60 parts by mass with respect to 100 parts by mass of the green colorant. More preferred.
- Yellow colorants include the yellow pigments described above as possible for inclusion in the red pixels, and C.I. I. Pigment Yellow 129, 138, 139, 150 and 185 are preferred.
- the green pixel preferably has a maximum transmittance of 65% or more, more preferably 70% or more, and even more preferably 75% or more for light with a wavelength of 495 nm or more and less than 550 nm.
- the average transmittance for light with a wavelength of 495 nm or more and less than 550 nm is preferably 60% or more, more preferably 65% or more, and even more preferably 70% or more.
- the transmittance for light with a wavelength of 450 nm is preferably 10% or less, more preferably 5% or less, and even more preferably 2% or less.
- the average transmittance for light with a wavelength of 400 nm or more and 450 nm or less is preferably 10% or less, more preferably 5% or less, and even more preferably 1% or less.
- the average transmittance for light with a wavelength of 540 nm or more and 610 nm or less is preferably 60% or less, more preferably 50% or less, and even more preferably 40% or less.
- a method for forming pixels includes a step of applying a coloring composition onto a support to form a coloring composition layer, a step of exposing the coloring composition layer in a pattern, and developing the coloring composition layer after exposure. and a step of performing.
- performing at a temperature of 150°C or lower throughout the entire process means that all steps of forming pixels using the coloring composition are performed at a temperature of 150°C or lower.
- this heating step is also performed at a temperature of 150° C. or less.
- the colored composition layer is formed by applying the colored composition onto the support.
- the support include glass substrates, polycarbonate substrates, polyester substrates, aromatic polyamide substrates, polyamideimide substrates, polyimide substrates, and the like.
- An organic light-emitting layer may be formed on these substrates.
- an undercoat layer may be provided on the substrate for improving the adhesion with the upper layer, preventing the diffusion of substances, or flattening the surface.
- the undercoat layer can also be formed using, for example, a composition obtained by removing the coloring agent from the coloring composition of the present invention described above.
- the surface contact angle of the undercoat layer is preferably 20 to 70° when measured with diiodomethane.
- the surface contact angle of the undercoat layer is within the above range, the wettability of the resin composition is good.
- the surface contact angle of the undercoat layer can be adjusted, for example, by adding a surfactant.
- a known method can be used as a method for applying the coloring composition.
- drop method drop cast
- slit coating method spray method
- roll coating method spin coating
- methods described in publications inkjet (e.g., on-demand method, piezo method, thermal method), discharge system printing such as nozzle jet, flexographic printing, screen printing, gravure printing, reverse offset printing, metal mask printing method, etc.
- inkjet e.g., on-demand method, piezo method, thermal method
- discharge system printing such as nozzle jet, flexographic printing, screen printing, gravure printing, reverse offset printing, metal mask printing method, etc.
- Various printing methods transfer methods using a mold or the like; nanoimprinting methods, and the like.
- the application method for inkjet is not particularly limited.
- the colored composition layer formed on the support may be dried (pre-baked).
- the pre-baking temperature is preferably 80° C. or lower, more preferably 70° C. or lower, still more preferably 60° C. or lower, and particularly preferably 50° C. or lower.
- the lower limit can be, for example, 40° C. or higher.
- the prebake time is preferably 10 to 3600 seconds. Pre-baking can be performed using a hot plate, an oven, or the like.
- the colored composition layer is exposed in a pattern (exposure step).
- the colored composition layer can be exposed in a pattern by exposing through a mask having a predetermined mask pattern using a stepper exposure machine, a scanner exposure machine, or the like. Thereby, the exposed portion can be cured.
- Radiation (light) that can be used for exposure includes g-line, i-line, and the like.
- Light with a wavelength of 300 nm or less (preferably light with a wavelength of 180 to 300 nm) can also be used.
- Light having a wavelength of 300 nm or less includes KrF rays (wavelength: 248 nm), ArF rays (wavelength: 193 nm), etc., and KrF rays (wavelength: 248 nm) are preferable.
- a long-wave light source of 300 nm or more can also be used.
- the exposure may be performed by continuously irradiating the light, or by pulsing the light (pulse exposure).
- pulse exposure is an exposure method in which exposure is performed by repeating light irradiation and rest in short-time (for example, millisecond level or less) cycles.
- the pulse width is preferably 100 nanoseconds (ns) or less, more preferably 50 nanoseconds or less, and even more preferably 30 nanoseconds or less.
- the lower limit of the pulse width is not particularly limited, but may be 1 femtosecond (fs) or more, and may be 10 femtoseconds or more.
- the frequency is preferably 1 kHz or higher, more preferably 2 kHz or higher, and even more preferably 4 kHz or higher.
- the upper limit of the frequency is preferably 50 kHz or less, more preferably 20 kHz or less, and even more preferably 10 kHz or less.
- the maximum instantaneous illuminance is preferably 50000000 W/ m2 or more, more preferably 100000000 W/ m2 or more, and even more preferably 200000000 W/ m2 or more.
- the upper limit of the maximum instantaneous illuminance is preferably 1000000000 W/m 2 or less, more preferably 800000000 W/m 2 or less, and even more preferably 500000000 W/m 2 or less.
- the pulse width is the time during which light is applied in the pulse cycle.
- frequency is the number of pulse cycles per second.
- maximum instantaneous illuminance is the average illuminance within the time during which the light is irradiated in the pulse cycle.
- the pulse cycle is a cycle in which light irradiation and rest in pulse exposure are set as one cycle.
- the irradiation amount (exposure amount) is preferably 0.03 to 2.5 J/cm 2 , for example.
- the lower limit is preferably 0.05 J/cm 2 or more, more preferably 0.2 J/cm 2 or more, still more preferably 0.5 J/cm 2 or more, and 0.8 J/cm 2 or more. It is more preferably 1.0 J/cm 2 or more, and even more preferably 1.0 J/cm 2 or more.
- the upper limit is preferably 2.0 J/cm 2 or less, more preferably 1.5 J/cm 2 or less.
- the exposure illuminance can be set as appropriate, and is preferably, for example, 50 mW/cm 2 to 10 W/cm 2 .
- the lower limit of exposure illuminance is preferably 500 mW/cm 2 or more, more preferably 800 mW/cm 2 or more, and even more preferably 1000 mW/cm 2 or more.
- the upper limit of exposure illuminance is preferably 10 W/cm 2 or less, more preferably 7 W/cm 2 or less, and even more preferably 5 W/cm 2 or less.
- the oxygen concentration at the time of exposure can be selected as appropriate, and in addition to exposure in the atmosphere, for example, 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 exceeding 21% by volume (for example, 22% by volume, 30% by volume, or 50% by volume).
- the oxygen concentration and the exposure illuminance may be appropriately combined.
- the illuminance may be 1 W/cm 2 at an oxygen concentration of 10% by volume and the illuminance at 2 W/cm 2 at an oxygen concentration of 35% by volume.
- the colored composition layer can be sufficiently cured, and a pixel having more excellent light resistance can be produced.
- the colored composition layer after exposure is developed. That is, the unexposed portion of the colored composition layer is removed by development to form a pattern (pixels).
- the development and removal of the unexposed portion of the colored composition layer can be performed using a developer. As a result, the unexposed portion of the colored composition layer in the exposure step is eluted into the developer, leaving only the photocured portion.
- the temperature of the developer is preferably 20 to 30° C., for example.
- the development time is preferably 20 to 180 seconds. Further, in order to improve the residue removability, the step of shaking off the developer every 60 seconds and then supplying new developer may be repeated several times.
- Examples of the developer include organic solvents and alkaline developers, and alkaline developers are preferred.
- alkaline developer an alkaline aqueous solution (alkali developer) obtained by diluting an alkaline agent with pure water is preferable.
- alkaline agents include ammonia, ethylamine, diethylamine, dimethylethanolamine, diglycolamine, diethanolamine, hydroxylamine, ethylenediamine, tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, and tetrabutylammonium hydroxide.
- ethyltrimethylammonium hydroxide ethyltrimethylammonium hydroxide
- benzyltrimethylammonium hydroxide dimethylbis(2-hydroxyethyl)ammonium hydroxide
- choline pyrrole
- piperidine 1,8-diazabicyclo-[5.4.0]-7-undecene
- examples include organic alkaline compounds and inorganic alkaline compounds such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, sodium silicate and sodium metasilicate.
- a compound having a large molecular weight is preferable for the alkaline agent from the standpoint of environment and safety.
- the concentration of the alkaline agent in the alkaline aqueous solution is preferably 0.001 to 10% by mass, more preferably 0.01 to 1% by mass.
- the developer may further contain a surfactant.
- surfactants include the surfactants described above, and nonionic surfactants are preferred.
- the developer may be produced once as a concentrated solution and then diluted to the required concentration when used.
- the dilution ratio is not particularly limited, it can be set, for example, in the range of 1.5 to 100 times. It is also preferable to wash (rinse) with pure water after development.
- Rinsing is preferably carried out by supplying a rinsing solution to the developed colored composition layer while rotating the support on which the developed colored composition layer is formed. It is also preferable to move the nozzle for discharging the rinsing liquid from the central portion of the support to the peripheral portion of the support. At this time, when moving the nozzle from the center of the support to the periphery, the moving speed of the nozzle may be gradually decreased. By performing rinsing in this manner, in-plane variations in rinsing can be suppressed. A similar effect can be obtained by gradually decreasing the rotation speed of the support while moving the nozzle from the center of the support to the periphery.
- Additional exposure processing and heat processing are post-development curing treatments for complete curing.
- the heating temperature is preferably 150°C or less.
- the upper limit of the heating temperature is more preferably 120°C or lower, and even more preferably 100°C or lower.
- the lower limit of the heating temperature is not particularly limited as long as it can accelerate the curing of the film, but is preferably 50°C or higher, more preferably 75°C or higher.
- the heating time is preferably 1 minute or longer, more preferably 5 minutes or longer, and even more preferably 10 minutes or longer.
- the upper limit is not particularly limited, it is preferably 20 minutes or less from the viewpoint of productivity.
- Post-baking is also preferably performed in an inert gas atmosphere.
- thermal polymerization can proceed with very high efficiency without being inhibited by oxygen, and even when pixels are manufactured at a temperature of 150° C. or less throughout the entire process, flatness can be improved. It is possible to manufacture a pixel excellent in properties such as light fastness.
- the inert gas include nitrogen gas, argon gas, helium gas, etc. Nitrogen gas is preferred.
- the oxygen concentration during post-baking is preferably 100 ppm or less.
- the additional exposure process it is preferable to irradiate light with a wavelength of 254 to 350 nm for exposure.
- the step of exposing the colored composition layer in a pattern is performed with respect to the colored composition layer with light having a wavelength of more than 350 nm and 380 nm or less (preferably light with a wavelength of 355 to 370 nm, More preferably i-line) is irradiated and exposed, and the additional exposure treatment (exposure after development) is performed on the colored composition layer after development with light having a wavelength of 254 to 350 nm (preferably light having a wavelength of 254 nm). ) is preferably used for exposure.
- the coloring composition layer can be moderately cured in the first exposure (exposure before development), and the entire coloring composition layer is almost completely cured in the next exposure (exposure after development).
- the colored composition layer can be sufficiently cured to form pixels having excellent properties such as light resistance, adhesion and rectangularity.
- the colored composition contains, as a photopolymerization initiator, a photopolymerization initiator A1 having an absorption coefficient of 1.0 ⁇ 10 3 mL/g cm or more at a wavelength of 365 nm in methanol.
- the absorption coefficient at a wavelength of 365 nm in methanol is 1.0 ⁇ 10 2 mL / g cm or less, and the absorption coefficient at a wavelength of 254 nm is 1.0 ⁇ 10 3 mL / g cm or more. It is preferable to use one containing agent A2.
- Exposure after development can be performed using, for example, an ultraviolet photoresist curing device.
- an ultraviolet photoresist curing device for example, light with a wavelength of 254 to 350 nm and light other than this (for example, i-line) may be emitted.
- the exposure source spectrum in the case of performing the additional exposure treatment is preferably a continuous spectrum, and from the viewpoint of improving the light resistance of the resulting cured film and the adhesion to the substrate, it has a spectral distribution different from that of the exposure before development.
- radiation include the following (a) to (c).
- the radiation of (b) or (c) is preferable in that the light resistance of the resulting cured film and the adhesion to the substrate can be improved at a higher level.
- the colorant contains a dye
- the dye generally absorbs ultraviolet light or short-wavelength visible light and may undergo photodecomposition. Therefore, the radiation of (c), which has less high-intensity components on the short-wavelength side, is preferred.
- the upper limit of the peak intensity at a wavelength of 313 nm is not particularly limited, it is preferably smaller than the peak intensity at a wavelength of 365 nm, more preferably 3/4 or less.
- the intensity is 1/4 or less, preferably 1/10 or less, more preferably 1/20 of the smaller peak intensity of the peak intensity at a wavelength of 405 nm (h-line) and the peak intensity at a wavelength of 436 nm (g-line). radiation.
- the lower limit of the peak intensity at the wavelength of 313 nm (j-line) and the wavelength of 365 nm (i-line) is not particularly limited.
- the exposure before development is radiation containing a wavelength of 365 nm (i-line), a wavelength of 405 nm (h-line) and a wavelength of 436 nm (g-line), and the peak intensity at a wavelength of 313 nm (j-line) is a wavelength of 365 nm ( Radiation that is less than 1 ⁇ 6 of the peak intensity in i-line) is preferred.
- Radiation that exhibits such spectral characteristics can be obtained, for example, by using a light source that exhibits the spectral characteristics described above, or by passing radiation emitted from a high-pressure mercury lamp through an ultraviolet cut filter or bandpass filter.
- the irradiation dose (exposure dose) in exposure after development is preferably 0.03 to 4.0 J/cm 2 , more preferably 0.05 to 3.5 J/cm 2 .
- the difference between the wavelength of light used for exposure before development and the wavelength of light used for exposure after development is preferably 200 nm or less, more preferably 100 to 150 nm.
- the display device of the present invention has the cured film of the present invention described above.
- Examples of display devices include liquid crystal display devices and organic electroluminescence display devices.
- Display Device written by Akio Sasaki, Industrial Research Institute, 1990
- Display Device written by Junsho Ibuki, published by Sangyo Tosho Co., Ltd. Published in 1989
- Liquid crystal display devices are described, for example, in “Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, published by Kogyo Choukai Co., Ltd., 1994)".
- the organic electroluminescent display device may be a microdisplay.
- the diagonal length of the display surface of the microdisplay can be, for example, 4 inches or less, 2 inches or less, 1 inch or less, or 0.2 inches or less. I can do it too.
- Applications of microdisplays include, but are not limited to, electronic viewfinders, smart glasses, head-mounted displays, and the like.
- the organic electroluminescence display device may have a light source composed of a white organic electroluminescence element.
- a tandem structure is preferable for the white organic electroluminescence element.
- the spectrum of white light emitted by the organic EL element preferably has strong maximum emission peaks in the blue region (430 nm-485 nm), green region (530 nm-580 nm) and yellow region (580 nm-620 nm). In addition to these emission peaks, those having a maximum emission peak in the red region (650 nm to 700 nm) are more preferred.
- the organic electroluminescence display device may have a color filter.
- the color filter may be provided on the underlying layer.
- transparent pixels may be provided and white light may be used as it is for light emission. By doing so, the brightness of the display device can also be increased.
- the organic electroluminescence display device may have a lens on the color filter.
- the shape of the lens can take various shapes derived from the design of the optical system, and examples thereof include a convex shape and a concave shape. For example, a concave shape (concave lens) can easily improve the light condensing property.
- the lens may be in direct contact with the color filter, or another layer such as an adhesion layer or a planarization layer may be provided between the lens and the color filter. Also, the lens can be used by arranging it in the manner described in WO2018/135189.
- the colored composition and cured film of the present invention can also be used in solid-state imaging devices.
- the configuration of the solid-state imaging device is not particularly limited as long as it functions as a solid-state imaging device.
- Transfer electrodes made of polysilicon or the like, and a plurality of photodiodes forming the light-receiving area of a solid-state imaging device (such as a CCD (charge-coupled device) image sensor, a CMOS (complementary metal-oxide semiconductor) image sensor, etc.) on a substrate.
- a light-shielding film is provided on the photodiode and the transfer electrode so that only the light-receiving portion of the photodiode is opened. It has a device protective film with a thickness of 1.5 mm, and has a color filter on the device protective film.
- a configuration having a condensing means for example, a microlens or the like; the same shall apply hereinafter
- the pixels of the color filter may be embedded in a space partitioned by partition walls, for example, in a grid pattern.
- the partition walls preferably have a lower refractive index than the pixels. Examples of imaging devices having such a structure are described in JP-A-2012-227478, JP-A-2014-179577, International Publication No. 2018/043654, and US Patent Application Publication No. 2018/0040656. device. Imaging devices equipped with solid-state imaging devices can be used not only for digital cameras and electronic devices (mobile phones, etc.) having imaging functions, but also for vehicle-mounted cameras and surveillance cameras.
- dispersion liquid After mixing the materials shown in the table below, 230 parts by mass of zirconia beads with a diameter of 0.3 mm were added, and dispersion treatment was performed for 3 hours using a paint shaker. Thereafter, dispersion treatment was further performed using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a decompression mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This operation was repeated 10 times to produce a dispersion.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- PB15:4 C.I. I. Pigment Blue 15:4 (average primary particle size 35 nm)
- PB15:6 C.I. I. Pigment Blue 15:6 (average primary particle size 30 nm)
- PV23 C.I. I. Pigment Violet 23 (average primary particle size 40 nm)
- Dispersant Dispersant 1: DISPERBYK-161 (manufactured by BYK-Chemie) Dispersant 2: Resin having the following structure (numerical values attached to the main chain are molar ratios; weight average molecular weight: 11,000)
- ⁇ Preparation of coloring composition> The materials shown in the table below were mixed, stirred, and then filtered through a nylon filter (manufactured by Nippon Pall Co., Ltd.) having a pore size of 0.45 ⁇ m to prepare a colored composition.
- the unit of the numerical value described in the content column is parts by mass.
- the colored compositions of Examples 1 to 29 had an absorbance of 17 for light at a wavelength of 535 nm when the absorbance for light at a wavelength of 445 nm was 1. That was it.
- the colored compositions of Comparative Examples 1 and 2 had an absorbance of less than 17 with respect to light with a wavelength of 535 nm when the absorbance with respect to light with a wavelength of 445 nm was set to 1.
- V1 20% by mass cyclohexanone solution of a dye compound (xanthene dye having a polymerizable group) having the following structure
- V2 20 wt% cyclohexanone solution of a dye compound (xanthene dye having a polymerizable group) having the following structure
- V3 20 wt% cyclohexanone solution of a dye compound (xanthene dye) having the following structure
- V4 20 wt% cyclohexanone solution of a dye compound (pyromethene dye) having the following structure
- A1 Resin having the following structure (numerical values attached to the main chain are mass ratios. A compound having an alicyclic epoxy group, a weight average molecular weight of 9000, an epoxy value of 3.82 mmol/g, and an acid value of 125 mgKOH/g).
- A2 Resin having the following structure (numerical values attached to the main chain are mass ratios. A compound having an alicyclic epoxy group, a weight average molecular weight of 10,000, an epoxy value of 3.84 mmol/g, and an acid value of 187 mgKOH/g).
- A3 A compound having the following structure (a compound having an alicyclic epoxy group)
- (resin) B1 Resin having the following structure (the numerical value attached to the main chain is the mass ratio, weight average molecular weight 30000)
- B2 Resin having the following structure (the numerical value attached to the main chain is the mass ratio, weight average molecular weight 11000)
- I1 Irgacure OXE02 (manufactured by BASF, oxime compound)
- I2 Omnirad 2959 (manufactured by IGM Resins B.V., hydroxyalkylphenone compound)
- I3 Omnirad 379 (manufactured by IGM Resins B.V., aminoalkylphenone compound)
- I4 A compound having the following structure (oxime compound)
- I5 Irgacure OXE01 (manufactured by BASF, oxime compound)
- the glass substrate on which the above cured film was formed was tested using a light resistance tester (SX-75 manufactured by Suga Test Instruments Co., Ltd.) with a black panel temperature of 63 ° C., a quartz inner filter, a 275 nm cut outer filter, and an illuminance of 75 mw / m 2 (300 to 400 nm). ), and a light resistance test was carried out for 50 hours under conditions of 50% humidity.
- a light resistance tester SX-75 manufactured by Suga Test Instruments Co., Ltd.
- Spectroscopy of the cured film before and after the light resistance test is measured with a spectrophotometer MCPD-3700 (manufactured by Otsuka Electronics Co., Ltd.), and the change in transmittance ( ⁇ T) at a wavelength of 445 nm is obtained for the measured spectral transmittance.
- the light resistance was evaluated according to the following criteria.
- Amount of change in transmittance ( ⁇ T)
- the evaluation results of the absorbance ratio and light resistance are shown in the table below.
- the epoxy group value of the total solid content of the coloring composition is also shown in the table below.
- the epoxy group value of the total solid content of the coloring composition was calculated from the structural formula of the raw material having an epoxy group.
- the colored compositions of Examples were able to form cured films with excellent light resistance.
- the cured films obtained using the coloring compositions of Examples have better spectral characteristics as blue pixels than the cured films obtained using the coloring compositions of Comparative Examples. The sensitivity as was excellent.
- the cured films obtained using the coloring compositions of Examples were superior in color separation from green to the cured films obtained using the coloring compositions of Comparative Examples.
- Example 1 or 14 For the colored composition of Example 1 or 14, instead of heat treatment (post-baking) at 150 ° C. for 5 minutes, an ultraviolet photoresist curing apparatus (UMA-802-HC-552; manufactured by Ushio Denki Co., Ltd.) was used. A cured film was formed in the same manner as described above, except that the exposure dose was 3000 mJ/cm 2 . When the light resistance of this cured film was evaluated by the same method as described above, it was evaluated as S.
- UVA-802-HC-552 ultraviolet photoresist curing apparatus
- Example 1 Regarding the coloring composition of Example 1, the same as above except that heat treatment (post bake) was performed for 20 minutes using a hot plate at 100 ° C. instead of heat treatment (post bake) at 150 ° C. for 5 minutes. to form a cured film.
- heat treatment post bake
- the light resistance of this cured film was evaluated by the same method as described above, it was evaluated as S.
- Example 1 instead of heat treatment (post-baking) at 150 ° C. for 5 minutes, an i-line stepper exposure apparatus FPA-3000i5+ (manufactured by Canon Inc.) was used, and the exposure amount was 1500 mJ / cm 2 . A cured film was prepared in the same manner except that the exposure was performed at . When the light resistance of this cured film was evaluated by the same method as described above, it was evaluated as S.
- FPA-3000i5+ manufactured by Canon Inc.
- Example 1001 A green pixel-forming coloring composition was applied onto a silicon wafer by a spin coating method so that the film thickness after forming the film was 1.0 ⁇ m. Then, using a hot plate, it was heated at 100° C. for 2 minutes. Then, using an i-line stepper exposure apparatus FPA-3000i5+ (manufactured by Canon Inc.), exposure was performed at 1000 mJ/cm 2 through a 2 ⁇ m square dot pattern mask. Then, using a 0.3 mass % aqueous solution of tetramethylammonium hydroxide (TMAH), puddle development was performed at 23° C. for 60 seconds. After that, it was rinsed with a spin shower and then washed with pure water.
- TMAH tetramethylammonium hydroxide
- the coloring composition of Example 1 was used as the coloring composition for forming blue pixels.
- the coloring compositions for forming green pixels 1 to 8 described later were used.
- the red pixel-forming coloring composition a red pixel-forming coloring composition 1 described later was used.
- the resulting structure was incorporated into an organic electroluminescence display device according to a known method. This organic electroluminescence display device had a suitable image recognition ability.
- Green pixel-forming coloring composition 1 After mixing and stirring the following components, the mixture was filtered through a nylon filter (manufactured by Nippon Pall Co., Ltd.) having a pore size of 0.45 ⁇ m to prepare a green pixel-forming coloring composition 1.
- Green pigment dispersion liquid 1 ...85 parts by mass Photoinitiator 101...1.04 parts by mass Photoinitiator 102...0.77 parts by mass Resin solution 101...2.3 parts by mass Polymerizability Compound 101: 2.04 parts by mass Surfactant 101: 0.008 parts by mass Propylene glycol monomethyl ether acetate (PGMEA): 8.8 parts by mass
- Green pixel-forming coloring composition 2 After the following components were mixed and stirred, the mixture was filtered through a nylon filter (manufactured by Nippon Pall Co., Ltd.) having a pore size of 0.45 ⁇ m to prepare a green pixel forming coloring composition 2.
- Green pigment dispersion 2 ...85 parts by mass Photoinitiator 101...1.04 parts by mass Photoinitiator 102...0.77 parts by mass Resin solution 101...2.3 parts by mass Polymerizability Compound 101: 2.04 parts by mass Surfactant 101: 0.008 parts by mass Propylene glycol monomethyl ether acetate (PGMEA): 8.8 parts by mass
- Green pixel-forming coloring composition 3 After mixing and stirring the following components, the mixture was filtered through a nylon filter (manufactured by Nippon Pall Co., Ltd.) having a pore size of 0.45 ⁇ m to prepare a green pixel forming coloring composition 3.
- Green pigment dispersion 3 ...85 parts by mass Photoinitiator 101...1.04 parts by mass Photoinitiator 102...0.77 parts by mass Resin solution 101...2.3 parts by mass Polymerizability Compound 101: 2.04 parts by mass Surfactant 101: 0.008 parts by mass Propylene glycol monomethyl ether acetate (PGMEA): 8.8 parts by mass
- Green pixel-forming coloring composition 4 After mixing and stirring the following components, the mixture was filtered through a nylon filter having a pore size of 0.45 ⁇ m (manufactured by Nippon Pall Co., Ltd.) to prepare a green colored composition.
- Red pigment dispersion liquid 1 51.0 parts by mass Photoinitiator 103...2.17 parts by mass Photoinitiator 102...0.83 parts by mass Resin solution 101...10.3 parts by mass Polymerizable compound 101...2.5 parts by mass Surfactant 102 (...0.008 parts by mass Butyl acetate...33.2 parts by mass
- Green pigment dispersion 1 Green pigment dispersion 1 prepared by the following method C. I. Pigment Green 36, 7.4 parts by mass, C.I. I. Pigment Yellow 185 of 5.2 parts by mass, Pigment Derivative 101 of 1.4 parts by mass, Dispersant 101 of 4.86 parts by mass, and PGMEA of 81.14 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours. Thereafter, dispersion treatment was further performed using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reducing mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Pigment derivative 101 a compound having the following structure
- Dispersant 101 A resin having the following structure.
- the parenthesized numbers for the main chain represent the molar ratio of each repeating unit, and the parenthesized numbers for the side chains represent the number of repeating units. Weight average molecular weight is 24,000.
- Green pigment dispersion 2 Green pigment dispersion 2 prepared by the following method C. I. Pigment Green 59 (halogenated zinc phthalocyanine pigment), 7.4 parts by mass, C.I. I. Pigment Yellow 185 of 5.2 parts by mass, Pigment Derivative 101 of 1.4 parts by mass, Dispersant 101 of 4.86 parts by mass, and PGMEA of 81.14 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours.
- dispersion treatment was further performed using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reducing mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This operation was repeated 10 times to obtain a green pigment dispersion liquid 2.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Green pigment dispersion 3 Green pigment dispersion 3 prepared by the following method 7.4 parts by mass of halogenated zinc phthalocyanine pigment P1, C.I. I. Pigment Yellow 185 of 5.2 parts by mass, Pigment Derivative 101 of 1.4 parts by mass, Dispersant 101 of 4.86 parts by mass, and PGMEA of 81.14 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours. Thereafter, dispersion treatment was further performed using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reducing mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Halogenated zinc phthalocyanine pigment P1 was synthesized according to the method described in paragraphs 0094 and 0101 of Japanese Patent No. 6809649.
- Halogenated zinc phthalocyanine pigment P1 has an average number of halogen atoms of 12.4 per phthalocyanine molecule, of which average number of bromine atoms is 10.6 and chlorine atoms is 1.9.
- Green pigment dispersion 4 Green pigment dispersion 4 prepared by the following method C. I. 4.43 parts by mass of Pigment Green 7, C.I. I. Pigment Green 36, 2.02 parts by mass, C.I. I. Pigment Yellow 139, 4.25 parts by mass, C.I. I. Pigment Yellow 150, 0.19 parts by mass, C.I. I. Pigment Yellow 185 of 0.54 parts by mass, Pigment Derivative 1 of 1.5 parts by mass, Dispersant 1 of 7.3 parts by mass, and PGMEA of 79.76 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours.
- dispersion treatment was carried out using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reduction mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This dispersion treatment was repeated 10 times to obtain a green pigment dispersion liquid 4.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Green pigment dispersion 5 Green pigment dispersion 5 prepared by the following method C. I. 4.43 parts by mass of Pigment Green 7, C.I. I. Pigment Green 36, 2.02 parts by mass, C.I. I. Pigment Yellow 139, 4.25 parts by mass, C.I. I. Pigment Yellow 150, 0.54 parts by mass, C.I. I. Pigment Yellow 185 of 0.19 parts by mass, Pigment Derivative 1 of 1.5 parts by mass, Dispersant 1 of 7.3 parts by mass, and PGMEA of 79.76 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours.
- dispersion treatment was further performed using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reducing mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This dispersion treatment was repeated 10 times to obtain a green pigment dispersion liquid 5.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Green pigment dispersion 6 Green pigment dispersion 6 prepared by the following method C. I. 2.02 parts by mass of Pigment Green 7, C.I. I. Pigment Green 36, 4.43 parts by mass, C.I. I. Pigment Yellow 139, 4.25 parts by mass, C.I. I. Pigment Yellow 150, 0.19 parts by mass, C.I. I. Pigment Yellow 185 of 0.54 parts by mass, Pigment Derivative 1 of 1.5 parts by mass, Dispersant 1 of 7.3 parts by mass, and PGMEA of 79.76 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours.
- dispersion treatment was carried out using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reduction mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This dispersion treatment was repeated 10 times to obtain a green pigment dispersion liquid 6.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Green Pigment Dispersion 7 Green Pigment Dispersion 7 prepared by the following method C. I. 2.02 parts by mass of Pigment Green 7, C.I. I. Pigment Green 36, 4.43 parts by mass, C.I. I. Pigment Yellow 139, 0.54 parts by mass, C.I. I. Pigment Yellow 150, 0.19 parts by mass, C.I. I. Pigment Yellow 185 of 4.25 parts by mass, Pigment Derivative 1 of 1.5 parts by mass, Dispersant 1 of 7.3 parts by mass, and PGMEA of 79.76 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours.
- dispersion treatment was carried out using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reduction mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This dispersion treatment was repeated 10 times to obtain a green pigment dispersion liquid 7.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Green pigment dispersion 8 Green pigment dispersion 8 prepared by the following method C. I. 4.43 parts by mass of Pigment Green 7, C.I. I. Pigment Green 36, 2.02 parts by mass, C.I. I. Pigment Yellow 139, 0.19 parts by mass, C.I. I. Pigment Yellow 150, 4.25 parts by mass, C.I. I. Pigment Yellow 185 of 0.54 parts by mass, Pigment Derivative 1 of 1.5 parts by mass, Dispersant 1 of 7.3 parts by mass, and PGMEA of 79.76 parts by mass were mixed in a bead mill (zirconia beads of 0.3 mm diameter) for 3 hours.
- dispersion treatment was carried out using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reduction mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This dispersion treatment was repeated 10 times to obtain a green pigment dispersion liquid 8.
- NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Red pigment dispersion 1 Red pigment dispersion 1 prepared by the following method C. I. Pigment Red 254, 9.5 parts by mass, C.I. I. A mixture of 5.0 parts by mass of Pigment Yellow 139, 5.5 parts by mass of dispersant 101, and 80.0 parts by mass of PGMEA was mixed and dispersed for 3 hours with a bead mill (zirconia beads of 0.3 mm diameter). Thereafter, dispersion treatment was further performed using a high-pressure disperser NANO-3000-10 (manufactured by Nippon BEE Co., Ltd.) with a pressure reducing mechanism under a pressure of 2000 kg/cm 2 and a flow rate of 500 g/min. This operation was repeated 10 times to obtain a red pigment dispersion liquid 1.
- a high-pressure disperser NANO-3000-10 manufactured by Nippon BEE Co., Ltd.
- Resin solution 101 30% PGMEA solution of resin having the following structure (values attached to the main chain are mass ratios; weight average molecular weight: 11000)
- Resin solution 102 Resin having the following structure (values attached to the main chain are mass ratios A 40% PGMEA solution with a weight average molecular weight of 11000)
- Polymerizable compound 101 Polymerizable compound M2 described above
- Polymerizable compound 102 Polymerizable compound M4 described above
- Photoinitiator 102 Photoinitiator I2 described above
- Photoinitiator 103 Photoinitiator I5 as described above
- Photoinitiator 104 Photoinitiator I3 described above
- Surfactant 101 Surfactant G2 as described above
- Surfactant 102 Surfactant G3 as described above
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Abstract
Description
上記着色組成物は、波長445nmの光に対する吸光度を1としたとき、波長535nmの光に対する吸光度が17以上である、着色組成物。
<2> 上記着色組成物の全固形分中における上記着色剤の含有量が29~55質量%である、<1>に記載の着色組成物。
<3> 上記着色組成物の全固形分中における上記脂環式エポキシ基を有する化合物の含有量が3~30質量%である、<1>または<2>に記載の着色組成物。
<4> 上記着色組成物の全固形分のエポキシ基価が0.2~2.0mmol/gである、<1>~<3>のいずれか1つに記載の着色組成物。
<5> 上記脂環式エポキシ基を有する化合物は、式(I)で表される基を有する繰り返し単位、および、式(II)で表される基を有する繰り返し単位から選ばれる少なくとも1種の繰り返し単位を有する樹脂を含む、<1>~<4>のいずれか1つに記載の着色組成物;
<6> 上記着色剤は、顔料および染料を含む、<1>~<5>のいずれか1つに記載の着色組成物。
<7> 上記顔料の100質量部に対して、上記染料を14.5~140質量部含む、<6>に記載の着色組成物。
<8> 上記染料は、キサンテン染料およびピロメテン染料から選ばれる少なくとも1種を含む、<6>または<7>に記載の着色組成物。
<9> 上記顔料は、青色顔料を含む、<6>~<8>のいずれか1つに記載の着色組成物。
<10> 上記着色剤は、カラーインデックスピグメントブル-15:6を含む、<1>~<9>のいずれか1つに記載の着色組成物。
<11> 上記着色剤は、カラーインデックスピグメントブル-15:6の100質量部に対して、キサンテン染料およびピロメテン染料を合計で30~130質量部含む、<1>~<10>のいずれか1つに記載の着色組成物。
<12> 更に、重合性化合物と、光重合開始剤とを含む、<1>~<11>のいずれか1つに記載の着色組成物。
<13> 上記重合性化合物は、エチレン性不飽和結合含有基を3個以上有する重合性化合物を含む、<12>に記載の着色組成物。
<14> カラーフィルタの青色画素形成用の着色組成物である、<1>~<13>のいずれか1つに記載の着色組成物。
<15> 表示装置用の着色組成物である、<1>~<14>のいずれか1つに記載の着色組成物。
<16> 全工程を通じて150℃以下の温度で硬化膜を形成するために用いられる、<1>~<15>のいずれか1つに記載の着色組成物。
<17> <1>~<16>のいずれか1つに記載の着色組成物から形成された硬化膜。
<18> <17>に記載の硬化膜を有するカラーフィルタ。
<19> <17>に記載の硬化膜を有する表示装置。
本明細書における基(原子団)の表記において、置換および無置換を記していない表記は、置換基を有さない基(原子団)と共に置換基を有する基(原子団)をも包含するものである。例えば、「アルキル基」とは、置換基を有さないアルキル基(無置換アルキル基)のみならず、置換基を有するアルキル基(置換アルキル基)をも包含するものである。
本明細書において「露光」とは、特に断らない限り、光を用いた露光のみならず、電子線、イオンビーム等の粒子線を用いた描画も露光に含める。また、露光に用いられる光としては、一般的に、水銀灯の輝線スペクトル、エキシマレーザーに代表される遠紫外線、極紫外線(EUV光)、X線、電子線等の活性光線または放射線が挙げられる。
本明細書において「~」を用いて表される数値範囲は、「~」の前後に記載される数値を下限値および上限値として含む範囲を意味する。
本明細書において、全固形分とは、組成物の全成分から溶剤を除いた成分の合計質量をいう。
本明細書において、顔料とは、溶剤に対して溶解しにくい着色剤を意味する。
本明細書において、染料とは、溶剤に対して溶解しやすい着色剤を意味する。
本明細書において、「(メタ)アクリレート」は、アクリレートおよびメタクリレートの双方、または、いずれかを表し、「(メタ)アクリル」は、アクリルおよびメタクリルの双方、または、いずれかを表し、「(メタ)アリル」は、アリルおよびメタリルの双方、または、いずれかを表し、「(メタ)アクリロイル」は、アクリロイルおよびメタクリロイルの双方、または、いずれかを表す。
本明細書において「工程」との語は、独立した工程だけではなく、他の工程と明確に区別できない場合であってもその工程の所期の作用が達成されれば、本用語に含まれる。
本明細書において、重量平均分子量(Mw)および数平均分子量(Mn)は、ゲルパーミエーションクロマトグラフィ(GPC)により測定したポリスチレン換算値として定義される。
本発明の着色組成物は、着色剤と、脂環式エポキシ基を有する化合物とを含む着色組成物であり、
上記着色組成物は、波長445nmの光に対する吸光度を1としたとき、波長535nmの光に対する吸光度が17以上であることを特徴とする。
Aλ=-log(Tλ/100) ・・・(Ab1)
Aλは、波長λにおける吸光度であり、Tλは、波長λにおける透過率(%)である。
本発明の着色組成物は着色剤を含有する。着色剤としては、青色着色剤、紫色着色剤、赤色着色剤、緑色着色剤、黄色着色剤、オレンジ色着色剤などの有彩色着色剤が挙げられる。着色組成物に含まれる着色剤は、青色着色剤及び紫色着色剤から選ばれる少なくとも1種を含むものであることが好ましく、青色着色剤を含むものであることがより好ましい。また、着色剤の全量中における青色着色剤と紫色着色剤との合計の含有量は50~100質量%であることが好ましく、75~100質量%であることがより好ましく、90~100質量%であることが更に好ましい。着色剤は、実質的に青色着色剤のみであるか、あるいは、青色着色剤と紫色着色剤のみであることが好ましい。なお、本明細書において、着色剤が実質的に青色着色剤のみある場合とは、着色剤全量中における青色着色剤の含有量が99質量%以上であることを意味し、99.9質量%以上であることが好ましく、着色剤が青色着色剤のみであることが更に好ましい。また、本明細書において、着色剤が実質的に青色着色剤と紫色着色剤のみある場合とは、着色剤全量中における青色着色剤と紫色着色剤の含有量が99質量%以上であることを意味し、99.9質量%以上であることが好ましく、着色剤が青色着色剤と紫色着色剤のみであることが更に好ましい。
顔料としては、青色顔料、紫色顔料、赤色顔料、緑色顔料、黄色顔料、オレンジ色顔料などの有彩色顔料が挙げられる。着色組成物に含まれる顔料は、青色顔料及び紫色顔料から選ばれる少なくとも1種を含むものであることが好ましく、青色顔料を含むものであることがより好ましい。また、着色組成物に含まれる顔料の全量中における青色顔料と紫色顔料との合計の含有量は50~100質量%であることが好ましく、75~100質量%であることがより好ましく、90~100質量%であることが更に好ましく、95~100質量%であることが特に好ましい。
染料としては、青色染料、紫色染料、赤色染料、緑色染料、黄色染料、オレンジ色染料などの有彩色染料が挙げられる。着色組成物に含まれる染料は、青色染料及び紫色染料から選ばれる少なくとも1種を含むものであることが好ましい。また、着色組成物に含まれる染料の全量中における青色染料と紫色染料との合計の含有量は50~100質量%であることが好ましく、75~100質量%であることがより好ましく、90~100質量%であることが更に好ましく、95~100質量%であることが特に好ましい。
式(AN2)中、RAN3~RAN5は、それぞれ独立して、ハロゲン原子またはアルキル基を表し、RAN3とRAN4、RAN4とRAN5、または、RAN3とRAN5は、結合して環を形成していてもよい;
アリーレン基の炭素数は、6~20が好ましく、6~12がより好ましい。アリーレン基は置換基を有していてもよく、無置換であってもよい。
ヘテロ環連結基は、5員環または6員環が好ましい。ヘテロ環連結基が有するヘテロ原子は、酸素原子、窒素原子および硫黄原子が好ましい。ヘテロ環連結基が有するヘテロ原子の数は、1~3個が好ましい。ヘテロ環連結基は、置換基を有していてもよく、無置換であってもよい。
式(B)のL2は、単結合または2価の連結基を表す。2価の連結基としては、炭素数1~30のアルキレン基、炭素数6~30のアリーレン基、ヘテロ環連結基、-CH=CH-、-O-、-S-、-C(=O)-、-COO-、-NR-、-CONR-、-OCO-、-SO-、-SO2-およびこれらを2個以上連結して形成される連結基が挙げられる。ここで、Rは、それぞれ独立に、水素原子、アルキル基、アリール基、またはヘテロアリール基を表す。2価の連結基の詳細については、式(A)のL1と同じである。L2は、単結合、または、アルキレン基、アリーレン基、-NH-、-CO-、-O-、-COO-、-OCO-およびこれらを2以上組み合わせた2価の連結基が好ましい。
染料多量体(C)は、式(C)で表される繰り返し単位を含む。式(C)で表される繰り返し単位の割合は、染料多量体(C)を構成する全繰り返し単位の10質量%以上が好ましく、20質量%以上がより好ましく、30質量%以上が更に好ましく、50質量%以上が特に好ましい。上限は、100質量%以下とすることもでき、95質量%以下とすることもできる。
アリール基およびアリーレン基の炭素数は、6~20が好ましく、6~12がより好ましい。
ヘテロ環連結基およびヘテロ環基は、5員環または6員環が好ましい。ヘテロ環連結基およびヘテロ環基が有するヘテロ原子は、酸素原子、窒素原子および硫黄原子が好ましい。ヘテロ環連結基およびヘテロ環基が有するヘテロ原子の数は、1~3個が好ましい。
アルキレン基、アリーレン基、ヘテロ環連結基、アルキル基、アリール基、およびヘテロ環基は、無置換であってもよく、置換基を有してもよい。置換基としては、重合性基、酸基が挙げられる。また、2~20個の無置換のアルキレンオキシ鎖の繰り返しからなる基、ラクトン、酸無水物、アミド、シアノ基等の現像促進基、長鎖および環状アルキル基、アラルキル基、アリール基、ポリアルキレンオキシド基、ヒドロキシ基、マレイミド基、アミノ基等の親疎水性調整基等を置換基として有してもよい。
染料多量体(D)は、式(D)で表される化合物である。
nは2~15を表し、kは0~13を表し、n+kは2~15である。n個のD4は互いに異なっていても良く、同一であってもよい。kが2以上の場合、複数のP4は互いに異なっていても良く、同一であってもよい。
本発明の着色組成物は、脂環式エポキシ基を有する化合物(以下、脂環エポキシ化合物ともいう)を含む。なお、脂環式エポキシ基とは、エポキシ環と脂肪族炭化水素環とが縮合した環状構造を有する1価の官能基のことを意味する。脂環式エポキシ基としては、式(e-1)で表される基が挙げられる。
また、脂環エポキシ化合物の全量中における脂環式エポキシ基を有する繰り返し単位を含む樹脂の含有量は、40~100質量%であることが好ましく、50~100質量%であることがより好ましく、60~100質量%であることが更に好ましい。
本発明の着色組成物は、脂環エポキシ化合物を、1種のみ含んでいてもよいし、2種以上含んでいてもよい。脂環エポキシ化合物を2種以上含む場合は、それらの合計量が上記範囲となることが好ましい。
本発明の着色組成物は、脂環式エポキシ基以外の環状エーテル基を有する化合物(他の環状エーテル基を有する化合物ともいう)を含有することができる。
本発明の着色組成物は、上述した脂環エポキシ化合物および他の環状エーテル基を有する化合物以外の成分として、樹脂を含有することができる。樹脂は、例えば、顔料を着色組成物中で分散させる用途や、バインダーの用途で配合される。なお、主に顔料を着色組成物中で分散させるために用いられる樹脂を分散剤ともいう。分散剤としての樹脂は、分散液の調製時に用いることができる。ただし、樹脂のこのような用途は一例であって、このような用途以外を目的として樹脂を使用することもできる。なお、本明細書において、脂環式エポキシ基を有する樹脂タイプの化合物は、脂環式エポキシ基を有する化合物に該当する成分である。また、上述した他の環状エーテル基を有する樹脂タイプの化合物は、他の環状エーテル基を有する化合物に該当する成分である。
本発明の着色組成物は、重合性化合物を含有することが好ましい。重合性化合物としては、エチレン性不飽和結合含有基を有する化合物などが挙げられる。エチレン性不飽和結合含有基としては、ビニル基、(メタ)アリル基、(メタ)アクリロイル基などが挙げられる。本発明で用いられる重合性化合物は、ラジカル重合性化合物であることが好ましい。
式(M-1)
式(M-2)
本発明の着色組成物は光重合開始剤を含有することが好ましい。光重合開始剤としては、特に制限はなく、公知の光重合開始剤の中から適宜選択することができる。例えば、紫外線領域から可視領域の光線に対して感光性を有する化合物が好ましい。光重合開始剤は、光ラジカル重合開始剤であることが好ましい。
式(V)
また、光重合開始剤A1のメタノール中での波長254nmの光の吸光係数は、1.0×104~1.0×105mL/g・cmであることが好ましく、1.5×104~9.5×104mL/g・cmであることがより好ましく、3.0×104~8.0×104mL/g・cmであることが更に好ましい。
本発明の着色組成物は、溶剤を含有することが好ましい。溶剤としては、有機溶剤が挙げられる。溶剤は、各成分の溶解性や着色組成物の塗布性を満足すれば基本的には特に制限はない。有機溶剤としては、エステル系溶剤、ケトン系溶剤、アルコール系溶剤、アミド系溶剤、エーテル系溶剤、炭化水素系溶剤などが挙げられる。これらの詳細については、国際公開第2015/166779号の段落0223を参酌でき、この内容は本明細書に組み込まれる。また、環状アルキル基が置換したエステル系溶剤、環状アルキル基が置換したケトン系溶剤を好ましく用いることもできる。有機溶剤の具体例としては、ポリエチレングリコールモノメチルエーテル、ジクロロメタン、3-エトキシプロピオン酸メチル、3-エトキシプロピオン酸エチル、エチルセロソルブアセテート、乳酸エチル、ジエチレングリコールジメチルエーテル、酢酸ブチル、3-メトキシプロピオン酸メチル、2-ヘプタノン、3-ペンタノン、4-ヘプタノン、シクロヘキサノン、2-メチルシクロヘキサノン、3-メチルシクロヘキサノン、4-メチルシクロヘキサノン、シクロヘプタノン、シクロオクタノン、酢酸シクロヘキシル、シクロペンタノン、エチルカルビトールアセテート、ブチルカルビトールアセテート、プロピレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテルアセテート、3-メトキシ-N,N-ジメチルプロパンアミド、3-ブトキシ-N,N-ジメチルプロパンアミド、プロピレングリコールジアセテート、3-メトキシブタノール、メチルエチルケトン、ガンマブチロラクトン、スルホラン、アニソール、1,4-ジアセトキシブタン、ジエチレングリコールモノエチルエーテルアセタート、二酢酸ブタン-1,3-ジイル、ジプロピレングリコールメチルエーテルアセタート、ジアセトンアルコール(別名としてダイアセトンアルコール、4-ヒドロキシ-4-メチル-2-ペンタノン)、2-メトキシプロピルアセテート、2-メトキシ-1-プロパノール、イソプロピルアルコールなどが挙げられる。ただし有機溶剤としての芳香族炭化水素類(ベンゼン、トルエン、キシレン、エチルベンゼン等)は、環境面等の理由により低減したほうがよい場合がある(例えば、有機溶剤全量に対して、50質量ppm(parts per million)以下とすることもでき、10質量ppm以下とすることもでき、1質量ppm以下とすることもできる)。
本発明の着色組成物は、顔料誘導体を含有することができる。顔料誘導体としては、色素骨格に酸基または塩基性基が結合した構造を有する化合物が挙げられる。
本発明の着色組成物は、ポリアルキレンイミンを含有することもできる。ポリアルキレンイミンは例えば分散助剤として用いられる。分散助剤とは、着色組成物中において顔料の分散性を高めるための素材のことである。ポリアルキレンイミンとは、アルキレンイミンを開環重合したポリマーのことである。ポリアルキレンイミンは、1級アミノ基と、2級アミノ基と、3級アミノ基とをそれぞれ含む分岐構造を有するポリマーであることが好ましい。アルキレンイミンの炭素数は2~6が好ましく、2~4がより好ましく、2または3であることが更に好ましく、2であることが特に好ましい。
本発明の着色組成物は、重合性化合物の反応を促進させたり、硬化温度を下げる目的で、硬化促進剤を添加してもよい。硬化促進剤としては、分子内に2個以上のメルカプト基を有する多官能チオール化合物などが挙げられる。多官能チオール化合物は安定性、臭気、解像性、現像性、密着性等の改良を目的として添加してもよい。多官能チオール化合物は、2級のアルカンチオール類であることが好ましく、式(T1)で表される化合物であることがより好ましい。
式(T1)
本発明の着色組成物は、シランカップリング剤を含有することができる。シランカップリング剤としては、一分子中に少なくとも2種の反応性の異なる官能基を有するシラン化合物が好ましい。シランカップリング剤は、ビニル基、エポキシ基、スチレン基、メタクリル基、アミノ基、イソシアヌレート基、ウレイド基、メルカプト基、スルフィド基、および、イソシアネート基から選ばれる少なくとも1種の基と、アルコキシ基とを有するシラン化合物が好ましい。シランカップリング剤の具体例としては、N-2-(アミノエチル)-3-アミノプロピルメチルジメトキシシラン(信越化学工業(株)製、KBM-602)、N-2-(アミノエチル)-3-アミノプロピルトリメトキシシラン(信越化学工業(株)製、KBM-603)、3-アミノプロピルトリメトキシシラン(信越化学工業(株)製、KBM-903)、3-アミノプロピルトリエトキシシラン(信越化学工業(株)製、KBE-903)、3-メタクリロキシプロピルトリメトキシシラン(信越化学工業(株)製、KBM-503)、3-グリシドキシプロピルトリメトキシシラン(信越化学工業(株)製、KBM-403)等が挙げられる。シランカップリング剤の詳細については、特開2013-254047号公報の段落番号0155~0158の記載を参酌でき、この内容は本明細書に組み込まれる。着色組成物の全固形分中におけるシランカップリング剤の含有量は、0.001~20質量%が好ましく、0.01~10質量%がより好ましく、0.1質量%~5質量%が更に好ましい。本発明の着色組成物は、シランカップリング剤を、1種のみを含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合は、それらの合計量が上記範囲となることが好ましい。
本発明の着色組成物は、重合禁止剤を含有することができる。重合禁止剤としては、ハイドロキノン、p-メトキシフェノール、ジ-t-ブチル-p-クレゾール、ピロガロール、t-ブチルカテコール、ベンゾキノン、4,4’-チオビス(3-メチル-6-t-ブチルフェノール)、2,2’-メチレンビス(4-メチル-6-t-ブチルフェノール)、N-ニトロソフェニルヒドロキシアミン塩(アンモニウム塩、第一セリウム塩等)等が挙げられる。着色組成物の全固形分中における重合禁止剤の含有量は、0.0001~5質量%が好ましい。本発明の着色組成物は、重合禁止剤を、1種のみを含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合は、それらの合計量が上記範囲となることが好ましい。
本発明の着色組成物は、紫外線吸収剤を含有することができる。紫外線吸収剤は、共役ジエン化合物、アミノジエン化合物、サリシレート化合物、ベンゾフェノン化合物、ベンゾトリアゾール化合物、アクリロニトリル化合物、ヒドロキシフェニルトリアジン化合物、インドール化合物、トリアジン化合物などを用いることができる。これらの詳細については、特開2012-208374号公報の段落番号0052~0072、特開2013-068814号公報の段落番号0317~0334、特開2016-162946号公報の段落番号0061~0080の記載を参酌でき、これらの内容は本明細書に組み込まれる。紫外線吸収剤の市販品としては、例えば、UV-503(大東化学(株)製)、BASF社製のTinuvinシリーズ、Uvinul(ユビナール)シリーズ、住化ケムテックス(株)製のSumisorbシリーズなどが挙げられる。また、ベンゾトリアゾール化合物としては、ミヨシ油脂製のMYUAシリーズ(化学工業日報、2016年2月1日)が挙げられる。また、紫外線吸収剤は、特許第6268967号公報の段落番号0049~0059に記載された化合物、国際公開第2016/181987号の段落番号0059~0076に記載された化合物、国際公開第2020/137819号に記載されたチオアリール基置換ベンゾトリアゾール型紫外線吸収剤を用いることもできる。着色組成物の全固形分中における紫外線吸収剤の含有量は、0.1~10質量%が好ましく、0.1~5質量%がより好ましく、0.1~3質量%が特に好ましい。紫外線吸収剤は、1種のみを用いてもよく、2種以上を用いてもよい。2種以上を用いる場合は、合計量が上記範囲となることが好ましい。
本発明の着色組成物は、界面活性剤を含有することができる。界面活性剤としては、フッ素系界面活性剤、ノニオン系界面活性剤、カチオン系界面活性剤、アニオン系界面活性剤、シリコーン系界面活性剤などの各種界面活性剤を使用することができる。界面活性剤については、国際公開第2015/166779号の段落番号0238~0245に記載された界面活性剤が挙げられ、この内容は本明細書に組み込まれる。
本発明の着色組成物には、必要に応じて、各種添加剤、例えば、充填剤、密着促進剤、酸化防止剤、凝集防止剤等を配合することができる。これらの添加剤としては、特開2004-295116号公報の段落番号0155~0156に記載の添加剤を挙げることができ、この内容は本明細書に組み込まれる。また、酸化防止剤としては、例えばフェノール化合物、リン系化合物(例えば特開2011-090147号公報の段落番号0042に記載の化合物)、チオエーテル化合物などを用いることができる。市販品としては、例えば(株)ADEKA製のアデカスタブシリーズ(AO-20、AO-30、AO-40、AO-50、AO-50F、AO-60、AO-60G、AO-80、AO-330など)が挙げられる。また、酸化防止剤として、国際公開第2017/006600号に記載された多官能ヒンダードアミン酸化防止剤、国際公開第2017/164024号に記載された酸化防止剤、特許第6268967号公報の段落番号0023~0048に記載された酸化防止剤を用いることもできる。酸化防止剤は1種のみを用いてもよく、2種以上を用いてもよい。また、本発明の着色組成物は、必要に応じて、潜在酸化防止剤を含有してもよい。潜在酸化防止剤としては、酸化防止剤として機能する部位が保護基で保護された化合物であって、100~250℃で加熱するか、又は酸/塩基触媒存在下で80~200℃で加熱することにより保護基が脱離して酸化防止剤として機能する化合物が挙げられる。潜在酸化防止剤の具体例としては、国際公開第2014/021023号、国際公開第2017/030005号、特開2017-008219号公報に記載された化合物が挙げられる。市販品としては、アデカアークルズGPA-5001((株)ADEKA製)等が挙げられる。また、本発明の着色組成物は、特開2004-295116号公報の段落0078に記載の増感剤や光安定剤、同公報の段落0081に記載の熱重合防止剤、特開2018-091940号公報の段落番号0242に記載の貯蔵安定化剤を含有することができる。
本発明の着色組成物の収容容器としては、特に限定はなく、公知の収容容器を用いることができる。また、収容容器として、原材料や着色組成物中への不純物混入を抑制することを目的に、容器内壁を6種6層の樹脂で構成する多層ボトルや6種の樹脂を7層構造にしたボトルを使用することも好ましい。このような容器としては例えば特開2015-123351号公報に記載の容器が挙げられる。また、容器内壁は、容器内壁からの金属溶出を防ぎ、組成物の保存安定性を高めたり、成分変質を抑制するなど目的で、ガラス製やステンレス製などにすることも好ましい。
本発明の着色組成物は、前述の成分を混合して製造できる。着色組成物の製造に際しては、全成分を同時に溶剤に溶解および/または分散して着色組成物を製造してもよいし、必要に応じて、各成分を適宜2つ以上の溶液または分散液としておいて、使用時(塗布時)にこれらを混合して着色組成物を製造してもよい。
本発明の硬化膜は、上述した本発明の着色組成物を硬化して得られた膜である。本発明の硬化膜は、カラーフィルタなどに用いることができる。具体的には、カラーフィルタの着色層(画素)として好ましく用いることができ、青色画素としてより好ましく用いられる。本発明の硬化膜の膜厚は、目的に応じて適宜調整できるが、0.5~3.0μmであることが好ましい。下限は0.8μm以上が好ましく、1.0μm以上がより好ましく、1.1μm以上がさらに好ましい。上限は2.5μm以下が好ましく、2.0μm以下がより好ましく、1.8μm以下がさらに好ましい。
次に、本発明のカラーフィルタについて説明する。本発明のカラーフィルタは、上述した本発明の硬化膜を有する。好ましくは、カラーフィルタの着色画素として、より好ましくは緑色画素として、本発明の硬化膜を有する。本発明のカラーフィルタは、固体撮像素子や表示装置に用いることができる。
また、495nm以上550nm未満の波長の光に対する平均透過率は60%以上であることが好ましく、65%以上であることがより好ましく、70%以上であることが更に好ましい。
また、波長450nmの光に対する透過率は10%以下であることが好ましく、5%以下であることがより好ましく、2%以下であることが更に好ましい。
また、400nm以上450nm以下の波長の光に対する平均透過率は10%以下であることが好ましく、5%以下であることがより好ましく、1%以下であることが更に好ましい。
また、540nm以上610nm以下の波長の光に対する平均透過率は60%以下であることが好ましく、50%以下であることがより好ましく、40%以下であることが更に好ましい。
画素の形成方法について説明する。本発明の着色組成物を用いることで、例えば、青色画素を形成することができる。
また、着色組成物の塗布方法については、国際公開第2017/030174号、国際公開第2017/018419号の記載を参酌でき、これらの内容は本明細書に組み込まれる。
(a)現像前の露光と異なる分光スペクトル分布を有する放射線であって、波長313nm(j線)におけるピーク強度が、波長365nm(i線)におけるピーク強度に対して、1/6以上1/3未満である放射線。
(b)現像前の露光と異なる分光スペクトル分布を有する放射線であって、波長313nm(j線)におけるピーク強度が、波長365nm(i線)におけるピーク強度に対して、1/3以上である放射線。なお、かかる波長313nmにおけるピーク強度の上限は特に制限されないが、波長365nmにおけるピーク強度より小さいことが好ましく、より好ましくは3/4以下である。
(c)現像前の露光と異なる分光スペクトル分布を有する放射線であって、波長405nm(h線)及び波長436nm(g線)を含み、波長313nm(j線)及び波長365nm(i線)におけるピーク強度が、波長405nm(h線)のピーク強度及び波長436nm(g線)のピーク強度のうち、より小さいピーク強度に対して1/4以下、好ましくは1/10以下、更に好ましくは1/20である放射線。なお、かかる波長313nm(j線)及び波長365nm(i線)におけるピーク強度の下限は特に制限されない。
この場合、現像前の露光は、波長365nm(i線)、波長405nm(h線)及び波長436nm(g線)を含む放射線であって、波長313nm(j線)におけるピーク強度が、波長365nm(i線)におけるピーク強度に対して1/6未満である放射線が好ましい。
本発明の表示装置は、上述した本発明の硬化膜を有する。表示装置としては、液晶表示装置や有機エレクトロルミネッセンス表示装置などが挙げられる。表示装置の定義や各表示装置の詳細については、例えば「電子ディスプレイデバイス(佐々木昭夫著、(株)工業調査会、1990年発行)」、「ディスプレイデバイス(伊吹順章著、産業図書(株)平成元年発行)」などに記載されている。また、液晶表示装置については、例えば「次世代液晶ディスプレイ技術(内田龍男編集、(株)工業調査会、1994年発行)」に記載されている。本発明が適用できる液晶表示装置に特に制限はなく、例えば、上記の「次世代液晶ディスプレイ技術」に記載されている色々な方式の液晶表示装置に適用できる。
本発明の着色組成物および硬化膜は、固体撮像素子に用いることもできる。固体撮像素子の構成としては、固体撮像素子として機能する構成であれば特に限定はないが、例えば、以下のような構成が挙げられる。
下記の表に記載の素材を混合した後、直径0.3mmのジルコニアビーズ230質量部を加えて、ペイントシェーカーを用いて3時間分散処理を行った。その後、さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この操作を10回繰り返し、分散液を製造した。
PB15:4 : C.I.ピグメントブルー15:4(平均一次粒子径35nm)
PB15:6 : C.I.ピグメントブルー15:6(平均一次粒子径30nm)
PV23 : C.I.ピグメントバイオレット23(平均一次粒子径40nm)
S1:プロピレングリコールモノメチルエーテルアセテート(PGMEA)
下記表に示す素材を混合し、撹拌した後、孔径0.45μmのナイロン製フィルタ(日本ポール(株)製)を用いてろ過して着色組成物を調製した。含有量の欄に記載の数値の単位は質量部である。
得られた着色組成物について、波長400~700nmの吸光度を測定したところ、実施例1~29の着色組成物は、波長445nmの光に対する吸光度を1としたとき、波長535nmの光に対する吸光度が17以上であった。一方、比較例1、2の着色組成物は波長445nmの光に対する吸光度を1としたとき、波長535nmの光に対する吸光度が17未満であった。
(分散液)
P-B1、P-B2、P-B3:上述の分散液P-B1、P-B2、P-B3
V1:下記構造の色素化合物(重合性基を有するキサンテン染料)の20質量%のシクロヘキサノン溶液
A1:下記構造の樹脂(主鎖に付記した数値は質量比である。脂環式エポキシ基を有する化合物、重量平均分子量9000、エポキシ基価3.82mmol/g、酸価125mgKOH/g)
B1:下記構造の樹脂(主鎖に付記した数値は質量比である。重量平均分子量30000)
M1:アロニックス M-402(東亞合成(株)製、ジペンタエリスリトールヘキサアクリレートとジペンタエリスリトールペンタアクリレートの混合物)
M2:下記構造の化合物
I1:Irgacure OXE02(BASF社製、オキシム化合物)
I2:Omnirad 2959(IGM Resins B.V.社製、ヒドロキシアルキルフェノン化合物)
I3:Omnirad 379(IGM Resins B.V.社製、アミノアルキルフェノン化合物)
I4:下記構造の化合物(オキシム化合物)
G1:BYK-330(ビックケミー社製、シリコーン系界面活性剤)
G2:下記構造の化合物(重量平均分子量14000、繰り返し単位の割合を示す%の数値はモル%である、フッ素系界面活性剤)
G4:SH8400(ダウ・東レ(株)製、シリコーン系界面活性剤)
S1:PGMEA
S2:プロピレングリコールモノメチルエーテル
S3:アニソール
(硬化膜の形成)
各着色組成物をガラス基板にスピンコーター(ミカサ(株)製)を用いて塗布し、塗膜を形成した。そして、この塗膜の乾燥膜厚が2.0μmになるように、100℃のホットプレートを用いて120秒間加熱処理(プリベーク)を行った。次いで150℃で5分間の加熱処理(ポストベーク)を行い、塗布膜の硬化を行って硬化膜を形成した。
上記形成した硬化膜について、分光光度計(U-4100、(株)日立ハイテクノロジーズ製)を用いて波長400~700nmの範囲の吸収スペクトルを測定し、波長445nmにおける吸光度を1としたときの、波長535nmの吸光度A535を算出した。
上記硬化膜を形成したガラス基板を、耐光試験装置(スガ試験機社製SX-75)を用いてブラックパネル温度63℃、石英インナーフィルター、275nmカットアウターフィルター、照度75mw/m2(300~400nm)、湿度50%の条件下で50時間、耐光性試験を実施した。耐光性試験前後の硬化膜の分光を分光光度計MCPD-3700(大塚電子(株)製)で測定し、測定された分光の透過率について、波長445nmの透過率の変化量(ΔT)を求め、以下の基準で耐光性を評価した。
透過率の変化量(ΔT)=|耐光性試験前の硬化膜の波長445nmの透過率-耐光性試験後の硬化膜の波長445nmの透過率|
S:ΔTが1%以下
A:ΔTが1%より大きく2.5%以下
B:ΔTが2.5%より大きく4%以下
C:ΔTが4%より大きく5%以下
D:ΔTが5%より大きい
シリコンウエハ上に、緑色画素形成用着色組成物を製膜後の膜厚が1.0μmになるようにスピンコート法で塗布した。次いで、ホットプレートを用いて、100℃で2分間加熱した。次いで、i線ステッパー露光装置FPA-3000i5+(キヤノン(株)製)を用い、1000mJ/cm2で2μm四方のドットパターンのマスクを介して露光した。次いで、水酸化テトラメチルアンモニウム(TMAH)0.3質量%水溶液を用い、23℃で60秒間パドル現像を行った。その後、スピンシャワーにてリンスを行い、更に純水にて水洗した。次いで、ホットプレートを用いて、150℃で5分間加熱することで、緑色の着色パターン(緑色画素)を形成した。同様に赤色画素形成用着色組成物、青色画素形成用着色組成物を順次パターニングし、赤色の着色パターン(赤色画素)、青色の着色パターン(青色画素)をそれぞれ形成して構造体を形成した。青色画素形成用着色組成物としては、実施例1の着色組成物を使用した。
緑色画素形成用着色組成物としては、後述する緑色画素形成用着色組成物1~8を用いた。
赤色画素形成用着色組成物としては、後述する赤色画素形成用着色組成物1を用いた。
得られた構造体を公知の方法に従い有機エレクトロルミネッセンス表示装置に組み込んだ。この有機エレクトロルミネッセンス表示装置は好適な画像認識能を有していた。
下記成分を混合し、撹拌した後、孔径0.45μmのナイロン製フィルタ(日本ポール(株)製)でろ過して、緑色画素形成用着色組成物1を調製した。
緑色顔料分散液1 ・・・85質量部
光重合開始剤101 ・・・1.04質量部
光重合開始剤102 ・・・0.77質量部
樹脂溶液101 ・・・2.3質量部
重合性化合物101 ・・・2.04質量部
界面活性剤101 ・・・0.008質量部
プロピレングリコールモノメチルエーテルアセテート(PGMEA) ・・・8.8質量部
下記成分を混合し、撹拌した後、孔径0.45μmのナイロン製フィルタ(日本ポール(株)製)でろ過して、緑色画素形成用着色組成物2を調製した。
緑色顔料分散液2 ・・・85質量部
光重合開始剤101 ・・・1.04質量部
光重合開始剤102 ・・・0.77質量部
樹脂溶液101 ・・・2.3質量部
重合性化合物101 ・・・2.04質量部
界面活性剤101 ・・・0.008質量部
プロピレングリコールモノメチルエーテルアセテート(PGMEA) ・・・8.8質量部
下記成分を混合し、撹拌した後、孔径0.45μmのナイロン製フィルタ(日本ポール(株)製)でろ過して、緑色画素形成用着色組成物3を調製した。
緑色顔料分散液3 ・・・85質量部
光重合開始剤101 ・・・1.04質量部
光重合開始剤102 ・・・0.77質量部
樹脂溶液101 ・・・2.3質量部
重合性化合物101 ・・・2.04質量部
界面活性剤101 ・・・0.008質量部
プロピレングリコールモノメチルエーテルアセテート(PGMEA) ・・・8.8質量部
下記成分を混合し、撹拌した後、孔径0.45μmのナイロン製フィルタ(日本ポール(株)製)でろ過して、緑色着色組成物を調製した。
緑色顔料分散液4 ・・・ 81.8質量部
光重合開始剤104 ・・・2.25質量部
光重合開始剤102 ・・・0.85質量部
樹脂溶液102 ・・・3.29質量部
重合性化合物101 ・・・3.60質量部
重合性化合物102 ・・・3.60質量部
界面活性剤102 ・・・0.008質量部
シクロヘキサノン ・・・4.60質量部
緑色画素形成用着色組成物4における緑色顔料分散液4を、緑色顔料分散液5~8に変更した以外は、緑色画素形成用着色組成物4と同様にして緑色画素形成用着色組成物5~8を調製した。
下記成分を混合し、撹拌した後、孔径0.45μmのナイロン製フィルタ(日本ポール(株)製)でろ過して、赤色画素形成用着色組成物1を調製した。
赤色顔料分散液1 51.0質量部
光重合開始剤103 ・・・2.17質量部
光重合開始剤102 ・・・0.83質量部
樹脂溶液101 ・・・10.3質量部
重合性化合物101 ・・・2.5質量部
界面活性剤102( ・・・0.008質量部
酢酸ブチル ・・・33.2質量部
C.I.ピグメントグリーン36の7.4質量部、C.I.ピグメントイエロー185の5.2質量部、顔料誘導体101の1.4質量部、分散剤101の4.86質量部、PGMEAの81.14質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この操作を10回繰り返し、緑色顔料分散液1を得た。
顔料誘導体101:下記構造の化合物
C.I.ピグメントグリーン59(ハロゲン化亜鉛フタロシアニン顔料)の7.4質量部、C.I.ピグメントイエロー185の5.2質量部、顔料誘導体101の1.4質量部、分散剤101の4.86質量部、PGMEAの81.14質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この操作を10回繰り返し、緑色顔料分散液2を得た。
ハロゲン化亜鉛フタロシアニン顔料P1の7.4質量部、C.I.ピグメントイエロー185の5.2質量部、顔料誘導体101の1.4質量部、分散剤101の4.86質量部、PGMEAの81.14質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この操作を10回繰り返し、緑色顔料分散液3を得た。なお、ハロゲン化亜鉛フタロシアニン顔料P1は、特許第6809649号の段落番号0094および段落番号0101に記載の方法にならい合成した。ハロゲン化亜鉛フタロシアニン顔料P1は、フタロシアニン1分子に含まれるハロゲン原子数が平均12.4個であり、そのうち臭素原子数が平均10.6個で、塩素原子数が平均1.9個である。
C.I.ピグメントグリーン7の4.43質量部、C.I.ピグメントグリーン36の2.02質量部、C.I.ピグメントイエロー139の4.25質量部、C.I.ピグメントイエロー150の0.19質量部、C.I.ピグメントイエロー185の0.54質量部、顔料誘導体1の1.5質量部、分散剤1の7.3質量部、PGMEAの79.76質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この分散処理を10回繰り返し、緑色顔料分散液4を得た。
C.I.ピグメントグリーン7の4.43質量部、C.I.ピグメントグリーン36の2.02質量部、C.I.ピグメントイエロー139の4.25質量部、C.I.ピグメントイエロー150の0.54質量部、C.I.ピグメントイエロー185の0.19質量部、顔料誘導体1の1.5質量部、分散剤1の7.3質量部、PGMEAの79.76質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この分散処理を10回繰り返し、緑色顔料分散液5を得た。
C.I.ピグメントグリーン7の2.02質量部、C.I.ピグメントグリーン36の4.43質量部、C.I.ピグメントイエロー139の4.25質量部、C.I.ピグメントイエロー150の0.19質量部、C.I.ピグメントイエロー185の0.54質量部、顔料誘導体1の1.5質量部、分散剤1の7.3質量部、PGMEAの79.76質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この分散処理を10回繰り返し、緑色顔料分散液6を得た。
C.I.ピグメントグリーン7の2.02質量部、C.I.ピグメントグリーン36の4.43質量部、C.I.ピグメントイエロー139の0.54質量部、C.I.ピグメントイエロー150の0.19質量部、C.I.ピグメントイエロー185の4.25質量部、顔料誘導体1の1.5質量部、分散剤1の7.3質量部、PGMEAの79.76質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この分散処理を10回繰り返し、緑色顔料分散液7を得た。
C.I.ピグメントグリーン7の4.43質量部、C.I.ピグメントグリーン36の2.02質量部、C.I.ピグメントイエロー139の0.19質量部、C.I.ピグメントイエロー150の4.25質量部、C.I.ピグメントイエロー185の0.54質量部、顔料誘導体1の1.5質量部、分散剤1の7.3質量部、PGMEAの79.76質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この分散処理を10回繰り返し、緑色顔料分散液8を得た。
C.I.ピグメントレッド254の9.5質量部、C.I.ピグメントイエロー139の5.0質量部、分散剤101の5.5質量部、PGMEAの80.0質量部からなる混合液を、ビーズミル(ジルコニアビーズ0.3mm径)により3時間混合および分散した。その後さらに、減圧機構付き高圧分散機NANO-3000-10(日本ビーイーイー(株)製)を用いて、2000kg/cm2の圧力下で流量500g/minとして分散処理を行なった。この操作を10回繰り返し、赤色顔料分散液1を得た。
Claims (19)
- 着色剤と、脂環式エポキシ基を有する化合物とを含む着色組成物であり、
前記着色組成物は、波長445nmの光に対する吸光度を1としたとき、波長535nmの光に対する吸光度が17以上である、着色組成物。 - 前記着色組成物の全固形分中における前記着色剤の含有量が29~55質量%である、請求項1に記載の着色組成物。
- 前記着色組成物の全固形分中における前記脂環式エポキシ基を有する化合物の含有量が3~30質量%である、請求項1または2に記載の着色組成物。
- 前記着色組成物の全固形分のエポキシ基価が0.2~2.0mmol/gである、請求項1~3のいずれか1項に記載の着色組成物。
- 前記着色剤は、顔料および染料を含む、請求項1~5のいずれか1項に記載の着色組成物。
- 前記顔料の100質量部に対して、前記染料を14.5~140質量部含む、請求項6に記載の着色組成物。
- 前記染料は、キサンテン染料およびピロメテン染料から選ばれる少なくとも1種を含む、請求項6または7に記載の着色組成物。
- 前記顔料は、青色顔料を含む、請求項6~8のいずれか1項に記載の着色組成物。
- 前記着色剤は、カラーインデックスピグメントブル-15:6を含む、請求項1~9のいずれか1項に記載の着色組成物。
- 前記着色剤は、カラーインデックスピグメントブル-15:6の100質量部に対して、キサンテン染料およびピロメテン染料を合計で30~130質量部含む、請求項1~10のいずれか1項に記載の着色組成物。
- 更に、重合性化合物と、光重合開始剤とを含む、請求項1~11のいずれか1項に記載の着色組成物。
- 前記重合性化合物は、エチレン性不飽和結合含有基を3個以上有する重合性化合物を含む、請求項12に記載の着色組成物。
- カラーフィルタの青色画素形成用の着色組成物である、請求項1~13のいずれか1項に記載の着色組成物。
- 表示装置用の着色組成物である、請求項1~14のいずれか1項に記載の着色組成物。
- 全工程を通じて150℃以下の温度で硬化膜を形成するために用いられる、請求項1~15のいずれか1項に記載の着色組成物。
- 請求項1~16のいずれか1項に記載の着色組成物から形成された硬化膜。
- 請求項17に記載の硬化膜を有するカラーフィルタ。
- 請求項17に記載の硬化膜を有する表示装置。
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JP2013122577A (ja) * | 2011-11-09 | 2013-06-20 | Sumitomo Chemical Co Ltd | 着色感光性樹脂組成物 |
JP2013144724A (ja) * | 2012-01-13 | 2013-07-25 | Sumitomo Chemical Co Ltd | 着色硬化性樹脂組成物 |
JP2017133009A (ja) * | 2016-01-27 | 2017-08-03 | 住友化学株式会社 | 着色硬化性樹脂組成物、カラーフィルタ及びそれを含む表示装置 |
WO2019098222A1 (ja) * | 2017-11-16 | 2019-05-23 | 住友化学株式会社 | 青色硬化性樹脂組成物、青色カラーフィルタ及びそれを含む表示装置 |
WO2021166860A1 (ja) * | 2020-02-20 | 2021-08-26 | 富士フイルム株式会社 | 感光性組成物、膜、光学フィルタ、固体撮像素子および画像表示装置 |
WO2021200009A1 (ja) * | 2020-03-31 | 2021-10-07 | 住友化学株式会社 | ネガ型レジスト組成物 |
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JP2013122577A (ja) * | 2011-11-09 | 2013-06-20 | Sumitomo Chemical Co Ltd | 着色感光性樹脂組成物 |
JP2013144724A (ja) * | 2012-01-13 | 2013-07-25 | Sumitomo Chemical Co Ltd | 着色硬化性樹脂組成物 |
JP2017133009A (ja) * | 2016-01-27 | 2017-08-03 | 住友化学株式会社 | 着色硬化性樹脂組成物、カラーフィルタ及びそれを含む表示装置 |
WO2019098222A1 (ja) * | 2017-11-16 | 2019-05-23 | 住友化学株式会社 | 青色硬化性樹脂組成物、青色カラーフィルタ及びそれを含む表示装置 |
WO2021166860A1 (ja) * | 2020-02-20 | 2021-08-26 | 富士フイルム株式会社 | 感光性組成物、膜、光学フィルタ、固体撮像素子および画像表示装置 |
WO2021200009A1 (ja) * | 2020-03-31 | 2021-10-07 | 住友化学株式会社 | ネガ型レジスト組成物 |
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