JP2012188475A - Pigment dispersant and pigment composition, coloring composition, and color filter using the same - Google Patents
Pigment dispersant and pigment composition, coloring composition, and color filter using the same Download PDFInfo
- Publication number
- JP2012188475A JP2012188475A JP2011050933A JP2011050933A JP2012188475A JP 2012188475 A JP2012188475 A JP 2012188475A JP 2011050933 A JP2011050933 A JP 2011050933A JP 2011050933 A JP2011050933 A JP 2011050933A JP 2012188475 A JP2012188475 A JP 2012188475A
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- Prior art keywords
- pigment
- group
- composition
- parts
- coloring composition
- Prior art date
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- 239000000049 pigment Substances 0.000 title claims abstract description 151
- 239000000203 mixture Substances 0.000 title claims abstract description 123
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 54
- 238000004040 coloring Methods 0.000 title claims abstract description 51
- 125000000217 alkyl group Chemical group 0.000 claims description 20
- 239000001054 red pigment Substances 0.000 claims description 16
- 125000003545 alkoxy group Chemical group 0.000 claims description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 11
- 125000003277 amino group Chemical group 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 125000005843 halogen group Chemical group 0.000 claims description 7
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 7
- 125000005647 linker group Chemical group 0.000 claims description 6
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 5
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 5
- FYNROBRQIVCIQF-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole-5,6-dione Chemical compound C1=CN=C2C(=O)C(=O)N=C21 FYNROBRQIVCIQF-UHFFFAOYSA-N 0.000 claims description 5
- AGIJRRREJXSQJR-UHFFFAOYSA-N 2h-thiazine Chemical compound N1SC=CC=C1 AGIJRRREJXSQJR-UHFFFAOYSA-N 0.000 claims description 4
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 4
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 4
- 150000004056 anthraquinones Chemical class 0.000 claims description 4
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 claims description 3
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 3
- CRDNMYFJWFXOCH-BUHFOSPRSA-N Couroupitine B Natural products N\1C2=CC=CC=C2C(=O)C/1=C1/C2=CC=CC=C2NC1=O CRDNMYFJWFXOCH-BUHFOSPRSA-N 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- CRDNMYFJWFXOCH-UHFFFAOYSA-N indirubin Chemical compound N1C2=CC=CC=C2C(=O)C1=C1C2=CC=CC=C2NC1=O CRDNMYFJWFXOCH-UHFFFAOYSA-N 0.000 claims description 2
- 239000001052 yellow pigment Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 22
- 239000011248 coating agent Substances 0.000 abstract description 21
- 238000007639 printing Methods 0.000 abstract description 17
- 239000006185 dispersion Substances 0.000 abstract description 16
- 238000003860 storage Methods 0.000 abstract description 5
- 230000001747 exhibiting effect Effects 0.000 abstract description 3
- -1 etc. Substances 0.000 description 72
- 229920005989 resin Polymers 0.000 description 40
- 239000011347 resin Substances 0.000 description 40
- 239000010408 film Substances 0.000 description 30
- 239000000976 ink Substances 0.000 description 30
- 239000000243 solution Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 19
- 239000000758 substrate Substances 0.000 description 18
- 239000003999 initiator Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 15
- 239000004925 Acrylic resin Substances 0.000 description 13
- 229920000178 Acrylic resin Polymers 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 12
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 10
- 238000001035 drying Methods 0.000 description 10
- 239000003973 paint Substances 0.000 description 10
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000012860 organic pigment Substances 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000002243 precursor Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
- 230000008719 thickening Effects 0.000 description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 4
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 125000006219 1-ethylpentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 3
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 3
- 239000012965 benzophenone Substances 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 3
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- XLLIQLLCWZCATF-UHFFFAOYSA-N ethylene glycol monomethyl ether acetate Natural products COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 229940097275 indigo Drugs 0.000 description 2
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 description 1
- LRSLDYIFOCTRHR-UHFFFAOYSA-N (3-benzoyl-4-ethylphenyl)-(4-ethylphenyl)methanone Chemical compound C1=CC(CC)=CC=C1C(=O)C1=CC=C(CC)C(C(=O)C=2C=CC=CC=2)=C1 LRSLDYIFOCTRHR-UHFFFAOYSA-N 0.000 description 1
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- ZXHDVRATSGZISC-UHFFFAOYSA-N 1,2-bis(ethenoxy)ethane Chemical compound C=COCCOC=C ZXHDVRATSGZISC-UHFFFAOYSA-N 0.000 description 1
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- VNQXSTWCDUXYEZ-UHFFFAOYSA-N 1,7,7-trimethylbicyclo[2.2.1]heptane-2,3-dione Chemical compound C1CC2(C)C(=O)C(=O)C1C2(C)C VNQXSTWCDUXYEZ-UHFFFAOYSA-N 0.000 description 1
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 1
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- RRQYJINTUHWNHW-UHFFFAOYSA-N 1-ethoxy-2-(2-ethoxyethoxy)ethane Chemical compound CCOCCOCCOCC RRQYJINTUHWNHW-UHFFFAOYSA-N 0.000 description 1
- HSKPJQYAHCKJQC-UHFFFAOYSA-N 1-ethylanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CC HSKPJQYAHCKJQC-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Optical Filters (AREA)
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Abstract
Description
本発明は、印刷インキ、塗料、樹脂着色剤、インクジェットインキやカラーフィルタ用インキなどに好適に用いられる顔料分散剤、顔料組成物および着色組成物に関する。また、本明は、カラー液晶表示装置、カラー撮像管素子等に用いられるカラーフィルタに関する。 The present invention relates to a pigment dispersant, a pigment composition, and a coloring composition that are suitably used for printing inks, paints, resin colorants, inkjet inks, color filter inks, and the like. The present invention also relates to a color filter used for a color liquid crystal display device, a color image pickup tube element and the like.
印刷インキ、塗料等においては、顔料を微細な状態で分散させることにより、高い着色力を発揮させ、印刷物または塗加工物の鮮明な色調、光沢等の適性を持たせている。また、顔料を安定な状態で分散させることにより印刷インキや塗料を製造する際の労力やエネルギーを大きく削減することができる。さらに安定な状態の分散体は一般的に貯蔵安定性にも優れる。 In printing inks, paints, etc., pigments are dispersed in a fine state to exert a high coloring power, and have appropriate properties such as clear color tone and gloss of printed or coated products. Moreover, the labor and energy at the time of manufacturing printing ink and a coating material can be reduced significantly by dispersing a pigment in a stable state. Furthermore, a dispersion in a stable state is generally excellent in storage stability.
しかし、印刷インキや塗料に用いられる顔料は、より鮮明な色調を実現するために微細な粒子であることが多く、そのために顔料粒子間の凝集力が強くなり上記のような適性を持たせることが困難であることが多い。 However, pigments used in printing inks and paints are often fine particles in order to achieve a clearer color tone, and as a result, the cohesion between the pigment particles becomes stronger and the above-mentioned suitability is imparted. Is often difficult.
このような問題を解決するためには、顔料分散剤を使用し、顔料とビヒクル間の親和性を良くし、分散体の安定化を図ることが知られており、これまでに様々な顔料分散剤が開示されている。 In order to solve such problems, it is known to use a pigment dispersant, improve the affinity between the pigment and the vehicle, and stabilize the dispersion. Agents are disclosed.
例えば、有機顔料に、酸性基、塩基性基、フタルイミドメチル基等の官能基を導入した顔料誘導体が開発され、効果が得られている。しかし、顔料誘導体は、有機顔料を母体骨格とするため固有の強い着色を有し、異なる色相の顔料に使用する場合は著しい制約を受ける場合がある。 For example, a pigment derivative in which a functional group such as an acidic group, a basic group, or a phthalimidomethyl group is introduced into an organic pigment has been developed and has been effective. However, since the pigment derivative has an intrinsic strong color because it uses an organic pigment as a base skeleton, it may be significantly restricted when used for a pigment having a different hue.
例えば、印刷インキ、塗料、とりわけインクジェットインキ、カラーフィルタ用インキ等の高度に微細化された顔料粒子を分散する系では、顔料粒子の強い凝集力をほぐし、経時安定性を得るために、使用する顔料分散剤の量が多くなる傾向に有り、鮮明性に悪い影響を与えてしまうといったジレンマを抱えている。 For example, in a system that disperses highly fine pigment particles such as printing inks, paints, especially ink jet inks, color filter inks, etc., it is used to relieve the strong cohesive force of the pigment particles and obtain stability over time. There is a tendency to increase the amount of the pigment dispersant, which has a dilemma that adversely affects the sharpness.
また、異種の顔料を混合して分散したり、異種の顔料で作られたインキを混合したりする場合において、単独の顔料では起こりえなかった増粘、色分かれや沈降などの現象により、展色物の色むらや著しい着色力の低下を引き起こすことがある。 In addition, when different types of pigments are mixed and dispersed, or when inks made of different types of pigments are mixed, there is a phenomenon such as thickening, color separation and sedimentation that could not occur with a single pigment. It may cause uneven color and a marked decrease in coloring power.
本発明は、高い鮮明性を発揮しながら、幅広い顔料に対し分散性能を発揮する顔料分散剤の提供を目的とする。 An object of the present invention is to provide a pigment dispersant that exhibits a dispersion performance for a wide range of pigments while exhibiting high sharpness.
また、本発明は、高鮮明性を実現し、顔料担体に対し優れた分散性能を発揮する顔料組成物の提供を目的とする。 Another object of the present invention is to provide a pigment composition that realizes high definition and exhibits excellent dispersion performance with respect to the pigment carrier.
さらに、本発明は、高い鮮明性を持ちながら、流動性、貯蔵安定性および乾燥皮膜にした場合の光沢性にも優れ、印刷インキ、塗料、インクジェットインキ、カラーフィルタ用インキ等として好適に用いられる着色組成物の提供を目的とする。 Furthermore, the present invention is excellent in fluidity, storage stability, and gloss when formed into a dry film while having high sharpness, and is suitably used as printing ink, paint, inkjet ink, color filter ink, and the like. An object is to provide a coloring composition.
本発明の顔料分散剤は、下記式(1)で表される化合物であることを特徴とする。 The pigment dispersant of the present invention is a compound represented by the following formula (1).
(式(1)中、R1〜R18は、それぞれ独立に、水素原子、ハロゲン原子、ヒドロキシル基、アルキル基、アルコキシ基、ニトロ基、アミノ基、シアノ基、スルホン酸基、または、カルボン酸基を表す。
Yは、直接結合、−O−、−S(O)m−(ここでmは、0から3の整数を表す。)、−CO−、−NR19−、−CONR19−、−NR19CO−、−NR19SO2−、−SO2NR19−(ここでR19は、水素原子、アルキル基、またはヒドロキシアルキル基を表す。)、炭素数1〜12の直鎖または枝分かれしたアルキレン基、あるいは、アルキル基、アミノ基、ニトロ基、水酸基、アルコキシ基、またはハロゲン原子で置換されてもよいベンゼン残基、あるいは、トリアジン残基、または、これらの結合基を2個以上組み合わせた結合基を表す。
Mn+は、水素イオン、金属イオン、または、少なくとも1のアルキル基で置換されているアンモニウムイオンを表し、
nはMの価数を表し、1〜3の整数を表す。
pおよびqは0〜6の数字であり、pとqの和は1〜6である。)
(In Formula (1), R < 1 > -R < 18 > is respectively independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, a nitro group, an amino group, a cyano group, a sulfonic acid group, or carboxylic acid. Represents a group.
Y is a direct bond, —O—, —S (O) m— (where m represents an integer of 0 to 3), —CO—, —NR 19 —, —CONR 19 —, —NR 19. CO -, - NR 19 SO2 - , - SO2NR 19 - (. wherein R 19 is represents a hydrogen atom, an alkyl group or hydroxyalkyl group), straight chain or branched alkylene group having 1 to 12 carbon atoms, or, Represents an alkyl group, an amino group, a nitro group, a hydroxyl group, an alkoxy group, a benzene residue that may be substituted with a halogen atom, a triazine residue, or a linking group obtained by combining two or more of these linking groups. .
M n + represents a hydrogen ion, a metal ion, or an ammonium ion substituted with at least one alkyl group;
n represents the valence of M and represents an integer of 1 to 3.
p and q are numbers from 0 to 6, and the sum of p and q is 1 to 6. )
また、本発明の顔料組成物は、顔料および本発明顔料分散剤を含有することを特徴とする。また、本発明の着色組成物は、本発明の顔料組成物と顔料担体を含有することを特徴とする。また、本発明のカラーフィルタは、本発明の着色組成物から形成されるフィルタセグメントを具備することを特徴とする。 The pigment composition of the present invention is characterized by containing a pigment and the pigment dispersant of the present invention. The coloring composition of the present invention is characterized by containing the pigment composition of the present invention and a pigment carrier. Moreover, the color filter of this invention comprises the filter segment formed from the coloring composition of this invention, It is characterized by the above-mentioned.
本発明の顔料分散剤を用いることにより、広範な樹脂に対して、顔料を微細に分散することができ、非集合性、非結晶性、流動性、塗膜光沢、鮮明性、貯蔵安定性に優れた良好なインキ及び塗料を容易に得ることができる。とりわけ、本発明の顔料分散剤は、ジケトピロロピロール系赤色顔料、キナクリドン系赤色顔料、アントラキノン系赤色顔料といった赤色系統の顔料群において、高い鮮明性を発揮しながら分散に優れた効果を発揮する。 By using the pigment dispersant of the present invention, the pigment can be finely dispersed in a wide range of resins, and non-aggregation, non-crystallinity, fluidity, coating film gloss, sharpness, and storage stability can be achieved. Excellent excellent ink and paint can be easily obtained. In particular, the pigment dispersant of the present invention exhibits an excellent dispersion effect while exhibiting high sharpness in a red pigment group such as a diketopyrrolopyrrole red pigment, a quinacridone red pigment, and an anthraquinone red pigment. .
本発明の顔料分散剤を含有する着色組成物は、グラビアインキ、自動車用、木材用、金属用等の各種一般塗料、磁気テープのバックコート塗料、ラジエーションキュアー型インキ、インクジェットプリンター用インキ、カラーフィルタ用インキ等の用途に使用できる。 The coloring composition containing the pigment dispersant of the present invention includes gravure inks, various general paints for automobiles, woods, metals, etc., back coat paints for magnetic tapes, radiation cure inks, inks for inkjet printers, color filters Can be used for applications such as industrial inks.
まず、本発明の顔料分散剤について説明する。 First, the pigment dispersant of the present invention will be described.
本発明の顔料分散剤は、式(1)で表される化合物である。 The pigment dispersant of the present invention is a compound represented by the formula (1).
ここで、式(1)中、R1〜R18は、それぞれ独立に、水素原子、ハロゲン原子、ヒドロキシル基、アルキル基、アルコキシ基、ニトロ基、アミノ基、シアノ基、スルホン酸基、または、カルボン酸基を表す。
Yは、直接結合、−O−、−S(O)m−(ここでmは、0から3の整数を表す。)、−CO−、−NR19−、−CONR19−、−NR19CO−、−NR19SO2−、−SO2NR19−(ここでR19は、水素原子、アルキル基、またはヒドロキシアルキル基を表す。)、炭素数1〜12の直鎖または枝分かれしたアルキレン基、あるいは、アルキル基、アミノ基、ニトロ基、水酸基、アルコキシ基、またはハロゲン原子で置換されてもよいベンゼン残基、あるいは、トリアジン残基、または、これらの結合基を2個以上組み合わせた結合基を表す。
Mn+は、水素イオン、金属イオン、または、少なくとも1つのアルキル基で置換されているアンモニウムイオンを表し、
nはMの価数を表し、1〜3の整数を表す。
pおよびqは0〜6の数字であり、pとqの和は1〜6である。
Here, in formula (1), R 1 to R 18 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, a nitro group, an amino group, a cyano group, a sulfonic acid group, or Represents a carboxylic acid group.
Y is a direct bond, —O—, —S (O) m— (where m represents an integer of 0 to 3), —CO—, —NR 19 —, —CONR 19 —, —NR 19. CO -, - NR 19 SO2 - , - SO2NR 19 - (. wherein R 19 is represents a hydrogen atom, an alkyl group or hydroxyalkyl group), straight chain or branched alkylene group having 1 to 12 carbon atoms, or, Represents an alkyl group, an amino group, a nitro group, a hydroxyl group, an alkoxy group, a benzene residue that may be substituted with a halogen atom, a triazine residue, or a linking group obtained by combining two or more of these linking groups. .
M n + represents a hydrogen ion, a metal ion, or an ammonium ion substituted with at least one alkyl group;
n represents the valence of M and represents an integer of 1 to 3.
p and q are numbers from 0 to 6, and the sum of p and q is 1 to 6.
ここで、R1〜R18におけるアルキル基としては、置換基を有してもよい炭素数1〜30のアルキル基が好ましく、例えば、メチル基、エチル基、プロピル基、ブチル基、ヘキシル基、オクチル基、デシル基、ドデシル基、オクダデシル基、イソプロピル基、イソブチル基、sec-ブチル基、tert-ブチル基、1−エチルペンチル基、シクロペンチル基、シクロヘキシル基、トリフルオロメチル基、2−エチルヘキシル基、フェナシル基、1−ナフトイルメチル基、2−ナフトイルメチル基、4−メチルスルファニルフェナシル基、4−フェニルスルファニルフェナシル基、4−ジメチルアミノフェナシル基、4−シアノフェナシル基4−メチルフェナシル基、2−メチルフェナシル基、3−フルオロフェナシル基、3−トリフルオロメチルフェナシル基、3−ニトロフェナシル基等が挙げられる。 Here, as the alkyl group in R 1 to R 18, an alkyl group having 1 to 30 carbon atoms which may have a substituent is preferable. For example, a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, Octyl group, decyl group, dodecyl group, octadecyl group, isopropyl group, isobutyl group, sec-butyl group, tert-butyl group, 1-ethylpentyl group, cyclopentyl group, cyclohexyl group, trifluoromethyl group, 2-ethylhexyl group, Phenacyl group, 1-naphthoylmethyl group, 2-naphthoylmethyl group, 4-methylsulfanylphenacyl group, 4-phenylsulfanylphenacyl group, 4-dimethylaminophenacyl group, 4-cyanophenacyl group 4-methylphenacyl Group, 2-methylphenacyl group, 3-fluorophenacyl group, 3-trifluoromethylphena Group, 3-Nitorofenashiru group.
また、R1〜R18におけるアルコキシ基としては、置換基を有してもよい炭素数1〜30のアルコキシ基が好ましく、例えば、メトキシ基、エトキシ基、プロピルオキシ基、イソプロピルオキシ基、ブトキシ基、イソブトキシ基、sec-ブトキシ基、tert-ブトキシ基、ペンチルオキシ基、イソペンチルオキシ基、ヘキシルオキシキ、ヘプチルオキシ基、オクチルオキシ基、2−エチルヘキシルオキシ基、デシルオキシ基、ドデシルオキシ基、オクタデシルオキシ基、エトキシカルボニルメチル基、2−エチルヘキシルオキシカルボニルメチルオキシ基、アミノカルボニルメチルオキシ基、N,N−ジブチルアミノカルボニルメチルオキシ基、N−メチルアミノカルボニルメチルオキシ基、N−エチルアミノカルボニルメチルオキシ基、N−オクチルアミノカルボニルメチルオキシ基、N−メチル−N−ベンジルアミノカルボニルメチルオキシ基、ベンジルオキシ基、シアノメチルオキシ基等が挙げられる。 As the alkoxy group in R 1 to R 18, alkoxy group having 1 to 30 carbon atoms are preferred, which may have a substituent, for example, a methoxy group, an ethoxy group, propyloxy group, isopropyloxy group, a butoxy group , Isobutoxy group, sec-butoxy group, tert-butoxy group, pentyloxy group, isopentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, 2-ethylhexyloxy group, decyloxy group, dodecyloxy group, octadecyloxy group Group, ethoxycarbonylmethyl group, 2-ethylhexyloxycarbonylmethyloxy group, aminocarbonylmethyloxy group, N, N-dibutylaminocarbonylmethyloxy group, N-methylaminocarbonylmethyloxy group, N-ethylaminocarbonylmethyloxy group , N-octi Aminocarbonylmethyl group, N- methyl -N- benzylaminocarbonyl methyloxy group, a benzyloxy group, and a cyanomethyloxy group.
また、R19におけるアルキル基としては、置換基を有してもよい炭素数1〜30のアルキル基が好ましく、例えば、メチル基、エチル基、プロピル基、ブチル基、ヘキシル基、オクチル基、デシル基、ドデシル基、オクダデシル基、イソプロピル基、イソブチル基、sec-ブチル基、tert-ブチル基、1−エチルペンチル基、シクロペンチル基、シクロヘキシル基、トリフルオロメチル基、2−エチルヘキシル基、フェナシル基、1−ナフトイルメチル基、2−ナフトイルメチル基、4−メチルスルファニルフェナシル基、4−フェニルスルファニルフェナシル基、4−ジメチルアミノフェナシル基、4−シアノフェナシル基4−メチルフェナシル基、2−メチルフェナシル基、3−フルオロフェナシル基、3−トリフルオロメチルフェナシル基、3−ニトロフェナシル基等が挙げられる。 The alkyl group for R 19 is preferably an alkyl group having 1 to 30 carbon atoms which may have a substituent, such as a methyl group, ethyl group, propyl group, butyl group, hexyl group, octyl group, decyl group. Group, dodecyl group, okdadecyl group, isopropyl group, isobutyl group, sec-butyl group, tert-butyl group, 1-ethylpentyl group, cyclopentyl group, cyclohexyl group, trifluoromethyl group, 2-ethylhexyl group, phenacyl group, 1 -Naphthoylmethyl group, 2-naphthoylmethyl group, 4-methylsulfanylphenacyl group, 4-phenylsulfanylphenacyl group, 4-dimethylaminophenacyl group, 4-cyanophenacyl group, 4-methylphenacyl group, 2- Methylphenacyl group, 3-fluorophenacyl group, 3-trifluoromethylphenacyl group, - Nitorofenashiru group and the like.
また、R19におけるヒドロキシアルキル基としてはメチル基、エチル基、プロピル基、ブチル基、ヘキシル基、オクチル基、デシル基、ドデシル基、オクダデシル基、イソプロピル基、イソブチル基、sec-ブチル基、tert-ブチル基、1−エチルペンチル基、シクロペンチル基、シクロヘキシル基、トリフルオロメチル基、2−エチルヘキシル基、フェナシル基、1−ナフトイルメチル基、2−ナフトイルメチル基、4−メチルスルファニルフェナシル基、4−フェニルスルファニルフェナシル基、4−ジメチルアミノフェナシル基、4−シアノフェナシル基4−メチルフェナシル基、2−メチルフェナシル基、3−フルオロフェナシル基、3−トリフルオロメチルフェナシル基、3−ニトロフェナシル基の水素原子が水酸基に置換されたものもが挙げられる。 The hydroxyalkyl group in R 19 is methyl, ethyl, propyl, butyl, hexyl, octyl, decyl, dodecyl, octadecyl, isopropyl, isobutyl, sec-butyl, tert- Butyl group, 1-ethylpentyl group, cyclopentyl group, cyclohexyl group, trifluoromethyl group, 2-ethylhexyl group, phenacyl group, 1-naphthoylmethyl group, 2-naphthoylmethyl group, 4-methylsulfanylphenacyl group, 4-phenylsulfanylphenacyl group, 4-dimethylaminophenacyl group, 4-cyanophenacyl group 4-methylphenacyl group, 2-methylphenacyl group, 3-fluorophenacyl group, 3-trifluoromethylphenacyl group, Some where the hydrogen atom of the 3-nitrophenacyl group is replaced by a hydroxyl group And the like.
また、Yにおける炭素数1〜12の直鎖または枝分かれしたアルキレン基としてはメチレン、エチレン、トリメチレン、テトラメチレン、ペンタメチレン、ヘキサメチレン、ヘプタメチレン、オクタメチレン、ノナメチレン、デカメチレン、ウンデカメチレン、ドデカメチレンが挙げられ、
これらの基の水素原子がフッ素原子、塩素原子、臭素原子等のハロゲン、水酸基、シアノ基、メルカプト基、アルキル基、アルケニル基、アリール基等に置換されたものもが挙げられる。
Examples of the linear or branched alkylene group having 1 to 12 carbon atoms in Y include methylene, ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, heptamethylene, octamethylene, nonamethylene, decamethylene, undecamethylene and dodecamethylene. Are mentioned,
Examples include those in which the hydrogen atom of these groups is substituted with a halogen such as a fluorine atom, a chlorine atom or a bromine atom, a hydroxyl group, a cyano group, a mercapto group, an alkyl group, an alkenyl group or an aryl group.
また、Yにおけるアルキル基、アミノ基、ニトロ基、水酸基、アルコキシ基、またはハロゲン原子で置換されてもよいベンゼン残基、あるいは、トリアジン残基中のアルキル基およびアルコキシ基としてはR1〜R18におけるアルキル基およびアルコキシ基と同義である。 In addition, the alkyl group, amino group, nitro group, hydroxyl group, alkoxy group, or benzene residue which may be substituted with a halogen atom in Y, or the alkyl group and alkoxy group in the triazine residue are R 1 to R 18. Are the same as the alkyl group and the alkoxy group.
また、Mn+における金属イオンとしてはナトリウムイオン、カリウムイオン、カルシウムイオン、ストロンチウムイオン、バリウムイオン、アルミニウムイオン等が挙げられる。 Examples of metal ions in M n + include sodium ions, potassium ions, calcium ions, strontium ions, barium ions, and aluminum ions.
次に、本発明の顔料組成物について説明する。本発明の顔料組成物は、顔料および本発明の顔料分散剤を含有する。 Next, the pigment composition of the present invention will be described. The pigment composition of the present invention contains a pigment and the pigment dispersant of the present invention.
本発明の顔料組成物に含まれる顔料としては、一般に市販されている種々の有機顔料または無機顔料を用いることができる。 As the pigment contained in the pigment composition of the present invention, various commercially available organic pigments or inorganic pigments can be used.
有機顔料としては、例えば、アゾ系、アンサンスロン系、アンスラピリミジン系、アントラキノン系、イソインドリノン系、イソインドリン系、インダンスロン系、キナクリドン系、キノフタロン系、ジオキサジン系、ジケトピロロピロール系、チアジンインジゴ系、チオインジゴ系、ピランスロン系、フタロシアニン系、フラバンスロン系、ペリノン系、ペリレン系、ベンズイミダゾロン系などの有機顔料が挙げられる。また、無機顔料としては、例えば、カーボンブラック、酸化チタン、黄鉛、カドミウムイエロー、カドミウムレッド、弁柄、鉄黒、亜鉛華、紺青、群青等が挙げられる。これらの顔料は、併用してもかまわない。 Examples of organic pigments include azo, anthanthrone, anthrapyrimidine, anthraquinone, isoindolinone, isoindoline, indanthrone, quinacridone, quinophthalone, dioxazine, diketopyrrolopyrrole, Organic pigments such as thiazine indigo, thioindigo, pyranthrone, phthalocyanine, flavanthrone, perinone, perylene, benzimidazolone and the like can be mentioned. Examples of the inorganic pigment include carbon black, titanium oxide, yellow lead, cadmium yellow, cadmium red, dial, iron black, zinc white, bitumen, and ultramarine blue. These pigments may be used in combination.
顔料の中では、本発明の顔料分散剤と同一または類似の化学構造を有する顔料に対して、非集合性、非結晶性、流動性等に効果が大きい。また、色相の面では黄色〜赤色の顔料に使用するのが好ましく、橙色〜赤色の顔料に使用するのがより好ましい。 Among pigments, non-aggregation, non-crystallinity, fluidity, and the like are significant for pigments having the same or similar chemical structure as the pigment dispersant of the present invention. In terms of hue, it is preferably used for yellow to red pigments, and more preferably for orange to red pigments.
特に、顔料自身の色味を保持し、高い鮮明性を保ちながら、本発明の顔料分散剤が優れた分散効果を発揮することから、ジケトピロロピロール系赤色顔料、キナクリドン系赤色顔料、チアジンインジゴ系赤色顔料、アントラキノン系赤色顔料に代表される赤色系統の顔料に使用することが好ましい。 In particular, since the pigment dispersant of the present invention exhibits an excellent dispersion effect while maintaining the color of the pigment itself and maintaining high sharpness, diketopyrrolopyrrole red pigment, quinacridone red pigment, thiazine It is preferably used for red pigments represented by indigo red pigments and anthraquinone red pigments.
顔料組成物中に含まれる本発明の顔料分散剤の量は、顔料100重量部に対して、0.1〜30重量部が好ましく、1〜20重量部がより好ましい。本発明の顔料分散剤の含有量が0.1重量部より少ない場合には、添加した顔料分散剤の効果が得られ難く、30重量部より多い場合には、添加した分の効果が得られないばかりか、得られる顔料組成物の物性と顔料単独の物性との差異が大きくなり、インキや塗料に用いられたときに実用上の品質に問題が起きることがある。 0.1-30 weight part is preferable with respect to 100 weight part of pigments, and, as for the quantity of the pigment dispersant of this invention contained in a pigment composition, 1-20 weight part is more preferable. When the content of the pigment dispersant of the present invention is less than 0.1 parts by weight, it is difficult to obtain the effect of the added pigment dispersant, and when it is more than 30 parts by weight, the effect of the added amount is obtained. In addition, the difference between the physical properties of the obtained pigment composition and the physical properties of the pigment alone increases, and there may be problems in practical quality when used in inks and paints.
本発明の顔料組成物は、顔料粉末と本発明の顔料分散剤の粉末を単に混合して調整しても充分な分散効果が得られるが、下記の方法により調整すれば、更に良好な結果を得ることができる。粉末混合以外の顔料組成物の調整方法としては、ディソルバー、ハイスピードミキサー、ホモミキサー、ニーダー、ロールミル、アトライター、サンドミル、各種粉砕機等を用いて顔料粉末と本発明の顔料分散剤の粉末を機械的に混合する方法、顔料の水または有機溶媒によるサスペンジョン系に本発明の顔料分散剤を含む溶液を添加し、顔料表面に顔料分散剤を沈着させる方法、硫酸等の強い溶解力を持つ溶媒に有機顔料と顔料分散剤を共溶解して水等の貧溶媒により共沈させる方法が挙げられる。 The pigment composition of the present invention can provide a sufficient dispersion effect by simply mixing and adjusting the pigment powder and the powder of the pigment dispersant of the present invention. Obtainable. As a method for adjusting the pigment composition other than the powder mixing, a pigment powder and a powder of the pigment dispersant of the present invention using a dissolver, a high speed mixer, a homomixer, a kneader, a roll mill, an attritor, a sand mill, various pulverizers, etc. A method of mechanically mixing, adding a solution containing the pigment dispersant of the present invention to a suspension system of pigment water or an organic solvent, and depositing the pigment dispersant on the pigment surface, having a strong dissolving power such as sulfuric acid Examples thereof include a method in which an organic pigment and a pigment dispersant are co-dissolved in a solvent and coprecipitated with a poor solvent such as water.
次に、本発明の着色組成物について説明する。本発明の着色組成物は、本発明の顔料組成物と顔料担体を含有する。顔料担体は、樹脂、その前駆体またはそれらの混合物により構成される。本発明の着色組成物を用いてカラーフィルタを製造する場合には、樹脂として、可視光領域の400〜700nmの全波長領域において透過率が80%以上、特に95%以上の透明樹脂を用いることが好ましい。 Next, the coloring composition of this invention is demonstrated. The coloring composition of the present invention contains the pigment composition of the present invention and a pigment carrier. The pigment carrier is constituted by a resin, its precursor or a mixture thereof. When producing a color filter using the colored composition of the present invention, a transparent resin having a transmittance of 80% or more, particularly 95% or more in the entire wavelength region of 400 to 700 nm in the visible light region is used as the resin. Is preferred.
樹脂としては、熱可塑性樹脂、熱硬化性樹脂、および感光性樹脂等が挙げられる。樹脂の前駆体としては、放射線照射により硬化して樹脂を生成するモノマーまたはオリゴマーが挙げられ、これらを単独で、または2種以上混合して用いることができる。 Examples of the resin include thermoplastic resins, thermosetting resins, and photosensitive resins. Examples of the resin precursor include monomers or oligomers that are cured by irradiation with radiation to form a resin, and these can be used alone or in combination of two or more.
顔料担体は、着色組成物中の顔料組成物100重量部に対して、30〜700重量部、好ましくは60〜450重量部の量で用いることができる。また、樹脂とその前駆体との混合物を顔料担体として用いる場合には、樹脂は、着色組成物中の顔料組成物100重量部に対して、20〜400重量部、好ましくは50〜250重量部の量で用いることができる。また、樹脂の前駆体は、着色組成物中の顔料組成物100重量部に対して、10〜300重量部、好ましくは10〜200重量部の量で用いることができる。 The pigment carrier can be used in an amount of 30 to 700 parts by weight, preferably 60 to 450 parts by weight, with respect to 100 parts by weight of the pigment composition in the coloring composition. When a mixture of a resin and its precursor is used as a pigment carrier, the resin is 20 to 400 parts by weight, preferably 50 to 250 parts by weight with respect to 100 parts by weight of the pigment composition in the colored composition. Can be used. The resin precursor can be used in an amount of 10 to 300 parts by weight, preferably 10 to 200 parts by weight, with respect to 100 parts by weight of the pigment composition in the colored composition.
熱可塑性樹脂としては、例えば、ブチラール樹脂、スチレン−マレイン酸共重合体、塩素化ポリエチレン、塩素化ポリプロピレン、ポリ塩化ビニル、塩化ビニル−酢酸ビニル共重合体、ポリ酢酸ビニル、ポリウレタン系樹脂、ポリエステル樹脂、アクリル系樹脂、アルキッド樹脂、ポリスチレン、ポリアミド樹脂、ゴム系樹脂、環化ゴム系樹脂、セルロース類、ポリエチレン、ポリブタジエン、ポリイミド樹脂等が挙げられる。 Examples of the thermoplastic resin include butyral resin, styrene-maleic acid copolymer, chlorinated polyethylene, chlorinated polypropylene, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl acetate, polyurethane resin, and polyester resin. , Acrylic resins, alkyd resins, polystyrene, polyamide resins, rubber resins, cyclized rubber resins, celluloses, polyethylene, polybutadiene, polyimide resins, and the like.
また、熱硬化性樹脂としては、例えば、エポキシ樹脂、ベンゾグアナミン樹脂、ロジン変性マレイン酸樹脂、ロジン変性フマル酸樹脂、メラミン樹脂、尿素樹脂、フェノール樹脂等が挙げられる。 Examples of the thermosetting resin include epoxy resins, benzoguanamine resins, rosin-modified maleic acid resins, rosin-modified fumaric acid resins, melamine resins, urea resins, and phenol resins.
感光性樹脂としては、水酸基、カルボキシル基、アミノ基等の反応性の置換基を有する高分子に、イソシアネート基、アルデヒド基、エポキシ基等の反応性の置換基を有する(メタ)アクリル化合物やケイヒ酸を反応させて、(メタ)アクリロイル基、スチリル基等の光架橋性基を該高分子に導入した樹脂が用いられる。また、スチレン−無水マレイン酸共重合物やα−オレフィン−無水マレイン酸共重合物等の酸無水物を含む線状高分子をヒドロキシアルキル(メタ)アクリレート等の水酸基を有する(メタ)アクリル化合物によりハーフエステル化したものも用いられる。 Photosensitive resins include (meth) acrylic compounds and silicate polymers having reactive substituents such as isocyanate groups, aldehyde groups, and epoxy groups on polymers having reactive substituents such as hydroxyl groups, carboxyl groups, and amino groups. A resin obtained by reacting an acid and introducing a photocrosslinkable group such as a (meth) acryloyl group or a styryl group into the polymer is used. Further, a linear polymer containing an acid anhydride such as a styrene-maleic anhydride copolymer or an α-olefin-maleic anhydride copolymer is converted into a (meth) acrylic compound having a hydroxyl group such as hydroxyalkyl (meth) acrylate. Half-esterified products are also used.
樹脂の前駆体であるモノマーおよびオリゴマーとしては、メチル(メタ)アクリレート、エチル(メタ)アクリレート、2−ヒドロキシエチル(メタ)アクリレート、2−ヒドロキシプロピル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、β−カルボキシエチル(メタ)アクリレート、ポリエチレングリコールジ(メタ)アクリレート、1,6−ヘキサンジオールジ(メタ)アクリレート、トリエチレングリコールジ(メタ)アクリレート、トリプロピレングリコールジ(メタ)アクリレート、トリメチロールプロパントリ(メタ)アクリレート、ペンタエリスリトールトリ(メタ)アクリレート、1,6−ヘキサンジオールジグリシジルエーテルジ(メタ)アクリレート、ビスフェノールAジグリシジルエーテルジ(メタ)アクリレート、ネオペンチルグリコールジグリシジルエーテルジ(メタ)アクリレート、ジペンタエリスリトールヘキサ(メタ)アクリレート、トリシクロデカニル(メタ)アクリレート、エステルアクリレート、メチロール化メラミンの(メタ)アクリル酸エステル、エポキシ(メタ)アクリレート、ウレタンアクリレート等の各種アクリル酸エステルおよびメタクリル酸エステル、(メタ)アクリル酸、スチレン、酢酸ビニル、ヒドロキシエチルビニルエーテル、エチレングリコールジビニルエーテル、ペンタエリスリトールトリビニルエーテル、(メタ)アクリルアミド、N−ヒドロキシメチル(メタ)アクリルアミド、N−ビニルホルムアミド、アクリロニトリル等が挙げられる。 As monomers and oligomers that are precursors of resins, methyl (meth) acrylate, ethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, cyclohexyl (meth) acrylate, β- Carboxyethyl (meth) acrylate, polyethylene glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, triethylene glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, trimethylolpropane tri ( (Meth) acrylate, pentaerythritol tri (meth) acrylate, 1,6-hexanediol diglycidyl ether di (meth) acrylate, bisphenol A diglycidyl ether di (meth) Acrylate, neopentyl glycol diglycidyl ether di (meth) acrylate, dipentaerythritol hexa (meth) acrylate, tricyclodecanyl (meth) acrylate, ester acrylate, (meth) acrylic acid ester of methylolated melamine, epoxy (meth) Various acrylates and methacrylates such as acrylate and urethane acrylate, (meth) acrylic acid, styrene, vinyl acetate, hydroxyethyl vinyl ether, ethylene glycol divinyl ether, pentaerythritol trivinyl ether, (meth) acrylamide, N-hydroxymethyl ( Examples include meth) acrylamide, N-vinylformamide, acrylonitrile and the like.
本発明に係る着色組成物には、顔料の顔料担体への分散性を向上させるため、適宜、界面活性剤、樹脂型顔料分散剤等の分散助剤を含有させることができる。分散助剤は、着色組成物中の顔料組成物100重量部に対して、0.1〜40重量部、好ましくは0.1〜30重量部の量で用いることができる。 In order to improve the dispersibility of the pigment in the pigment carrier, the coloring composition according to the present invention may appropriately contain a dispersion aid such as a surfactant or a resin-type pigment dispersant. The dispersion aid can be used in an amount of 0.1 to 40 parts by weight, preferably 0.1 to 30 parts by weight, with respect to 100 parts by weight of the pigment composition in the coloring composition.
界面活性剤としては、ポリオキシエチレンアルキルエーテル硫酸塩、ドデシルベンゼンスルホン酸ナトリウム、スチレン−アクリル酸共重合体のアルカリ塩、アルキルナフタリンスルホン酸ナトリウム、アルキルジフェニルエーテルジスルホン酸ナトリウム、ラウリル硫酸モノエタノールアミン、ラウリル硫酸トリエタノールアミン、ラウリル硫酸アンモニウム、ステアリン酸モノエタノールアミン、ステアリン酸ナトリウム、ラウリル硫酸ナトリウム、スチレン−アクリル酸共重合体のモノエタノールアミン、ポリオキシエチレンアルキルエーテルリン酸エステルなどのアニオン性界面活性剤;ポリオキシエチレンオレイルエーテル、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンノニルフェニルエーテル、ポリオキシエチレンアルキルエーテルリン酸エステル、ポリオキシエチレンソルビタンモノステアレート、ポリエチレングリコールモノラウレートなどのノニオン性界面活性剤;アルキル4級アンモニウム塩やそれらのエチレンオキサイド付加物などのカオチン性界面活性剤;アルキルジメチルアミノ酢酸ベタインなどのアルキルベタイン、アルキルイミダゾリンなどの両性界面活性剤、また、フッ素系やシリコン系の界面活性剤が挙げられる。 Surfactants include polyoxyethylene alkyl ether sulfate, sodium dodecylbenzenesulfonate, alkali salt of styrene-acrylic acid copolymer, sodium alkylnaphthalenesulfonate, sodium alkyldiphenyletherdisulfonate, lauryl sulfate monoethanolamine, lauryl Anionic surfactants such as triethanolamine sulfate, ammonium lauryl sulfate, monoethanolamine stearate, sodium stearate, sodium lauryl sulfate, monoethanolamine of styrene-acrylic acid copolymer, polyoxyethylene alkyl ether phosphate; Polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene Nonionic surfactants such as alkyl ether phosphates, polyoxyethylene sorbitan monostearate, and polyethylene glycol monolaurate; chaotic surfactants such as alkyl quaternary ammonium salts and their ethylene oxide adducts; alkyldimethylamino Examples include amphoteric surfactants such as alkylbetaines such as betaine acetate and alkylimidazolines, and fluorine-based and silicon-based surfactants.
樹脂型顔料分散剤は、顔料に吸着する性質を有する顔料親和性部位と、顔料担体と相溶性のある部位とを有する樹脂であり、顔料に吸着して顔料の顔料担体への分散を安定化する働きをするものである。樹脂型顔料分散剤としては、ポリエステル系、アクリル系、ウレタン系の直鎖状または櫛状の樹脂からなるものが挙げられ、直鎖状樹脂の主鎖または末端、櫛状樹脂の主鎖または側鎖に、ブロックまたはランダムに塩基性基、酸性基、芳香族基等を有するものが好ましい。 Resin-type pigment dispersant is a resin that has a pigment-affinity part that has the property of adsorbing to the pigment and a part that is compatible with the pigment carrier, and adsorbs to the pigment to stabilize the dispersion of the pigment on the pigment carrier. It works to do. Examples of the resin-type pigment dispersant include those made of a polyester-based, acrylic-based, or urethane-based linear or comb-like resin. The main chain or terminal of the linear resin, the main chain or side of the comb-shaped resin, and the like. Those having a basic group, acidic group, aromatic group or the like in the chain in a block or randomly are preferable.
市販の樹脂型顔料分散剤としては、例えば、ポリフローNO.75、NO.90、NO.95(共栄社油脂化学工業製)、メガファックF171、F172、F173(大日本インキ化学工業製)、フロラードFC430、FC431(住友スリーエム製)、ソルスパース13240、20000、24000、26000、28000などの各種ソルスパース分散剤(アビシア製)、ディスパービック111、160、161、162、163、164、170、182、2000、2001などの各種ディスパービック分散剤(ビックケミー製)、アジスパーPB711、PB411、PB111、PB814、PB821、PB822などの各種アジスパー分散剤(味の素ファインテクノ製)、エフカ46、47などのエフカ分散剤(エフカーケミカルズ社製)などが挙げられる。 Examples of commercially available resin-type pigment dispersants include, for example, Polyflow No. 75, NO. 90, NO. 95 (manufactured by Kyoeisha Yushi Chemical Co., Ltd.), MegaFuck F171, F172, F173 (manufactured by Dainippon Ink and Chemicals), and Fluorard FC430. , FC431 (manufactured by Sumitomo 3M), various Solsperse dispersants (manufactured by Avicia) such as Solsperse 13240, 20000, 24000, 26000, 28000, Dispersic 111, 160, 161, 162, 163, 164, 170, 182, 2000, 2001 Various Dispersic Dispersants (made by BYK Chemie), Ajisper PB711, PB411, PB111, PB814, PB821, PB822 and other Adisper Dispersants (manufactured by Ajinomoto Fine-Techno), and Fuka Dispersants such as Chemicals Co., Ltd.), and the like.
本発明の着色組成物を紫外線等の光照射により硬化する場合には、光重合開始剤が添加される。 When the colored composition of the present invention is cured by irradiation with light such as ultraviolet rays, a photopolymerization initiator is added.
光重合開始剤としては、4−フェノキシジクロロアセトフェノン、4−T−ブチル−ジクロロアセトフェノン、ジエトキシアセトフェノン、1−(4−イソプロピルフェニル)−2−ヒドロキシ−2−メチルプロパン−1−オン、1−ヒドロキシシクロヘキシルフェニルケトン、2−ベンジル−2−ジメチルアミノ−1−(4−モルフォリノフェニル)−ブタン−1−オン等のアセトフェノン系光重合開始剤、ベンゾイン、ベンゾインメチルエーテル、ベンゾインエチルエーテル、ベンゾインイソプロピルエーテル、ベンジルジメチルケタール等のベンゾイン系光重合開始剤、ベンゾフェノン、ベンゾイル安息香酸、ベンゾイル安息香酸メチル、4−フェニルベンゾフェノン、ヒドロキシベンゾフェノン、アクリル化ベンゾフェノン、4−ベンゾイル−4’−メチルジフェニルサルファイド等のベンゾフェノン系光重合開始剤、チオキサンソン、2−クロルチオキサンソン、2−メチルチオキサンソン、イソプロピルチオキサンソン、2,4−ジイソプロピルチオキサンソン等のチオキサンソン系光重合開始剤、2,4,6−トリクロロ−S−トリアジン、2−フェニル−4,6−ビス(トリクロロメチル)−S−トリアジン、2−(P−メトキシフェニル)−4,6−ビス(トリクロロメチル)−S−トリアジン、2−(P−トリル)−4,6−ビス(トリクロロメチル)−S−トリアジン、2−ピペロニル−4,6−ビス(トリクロロメチル)−S−トリアジン、2,4−ビス(トリクロロメチル)−6−スチリル−S−トリアジン、2−(ナフト−1−イル)−4,6−ビス(トリクロロメチル)−S−トリアジン、2−(4−メトキシ−ナフト−1−イル)−4,6−ビス(トリクロロメチル)−S−トリアジン、2,4−トリクロロメチル−(ピペロニル)−6−トリアジン、2,4−トリクロロメチル(4’−メトキシスチリル)−6−トリアジン等のトリアジン系光重合開始剤、ボレート系光重合開始剤、カルバゾール系光重合開始剤、イミダゾール系光重合開始剤等が用いられる。光重合開始剤は、着色組成物中の顔料組成物100重量部に対して、5〜200重量部、好ましくは10〜150重量部の量で用いることができる。 Examples of photopolymerization initiators include 4-phenoxydichloroacetophenone, 4-T-butyl-dichloroacetophenone, diethoxyacetophenone, 1- (4-isopropylphenyl) -2-hydroxy-2-methylpropan-1-one, 1- Acetophenone photopolymerization initiators such as hydroxycyclohexyl phenyl ketone, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl Benzoin photopolymerization initiators such as ether and benzyldimethyl ketal, benzophenone, benzoylbenzoic acid, methyl benzoylbenzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylated benzophenone, 4-benzene Benzophenone-based photopolymerization initiators such as zoyl-4′-methyldiphenyl sulfide, thioxanthone-based light such as thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diisopropylthioxanthone Polymerization initiator, 2,4,6-trichloro-S-triazine, 2-phenyl-4,6-bis (trichloromethyl) -S-triazine, 2- (P-methoxyphenyl) -4,6-bis (trichloro) Methyl) -S-triazine, 2- (P-tolyl) -4,6-bis (trichloromethyl) -S-triazine, 2-piperonyl-4,6-bis (trichloromethyl) -S-triazine, 2,4 -Bis (trichloromethyl) -6-styryl-S-triazine, 2- (naphth-1-yl) -4,6-bis Trichloromethyl) -S-triazine, 2- (4-methoxy-naphth-1-yl) -4,6-bis (trichloromethyl) -S-triazine, 2,4-trichloromethyl- (piperonyl) -6-triazine , 2,4-trichloromethyl (4′-methoxystyryl) -6-triazine and other triazine photopolymerization initiators, borate photopolymerization initiators, carbazole photopolymerization initiators, imidazole photopolymerization initiators and the like are used. It is done. A photoinitiator can be used in the amount of 5-200 weight part with respect to 100 weight part of pigment compositions in a coloring composition, Preferably it is 10-150 weight part.
上記光重合開始剤は、単独でまたは2種以上混合して用いることができるが、増感剤として、α−アシロキシムエステル、アシルフォスフィンオキサイド、メチルフェニルグリオキシレート、ベンジル、9,10−フェナンスレンキノン、カンファーキノン、エチルアンスラキノン、4,4’−ジエチルイソフタロフェノン、3,3’,4,4’−テトラ(T−ブチルパーオキシカルボニル)ベンゾフェノン、4,4’−ジエチルアミノベンゾフェノン等の化合物を併用することもできる。増感剤は、着色組成物中の光重合開始剤100重量部に対して、0.1〜60重量部の量で用いることができる。 The above photopolymerization initiators can be used alone or in combination of two or more. As the sensitizer, α-acyloxime ester, acylphosphine oxide, methylphenylglyoxylate, benzyl, 9,10- Phenanthrenequinone, camphorquinone, ethylanthraquinone, 4,4'-diethylisophthalophenone, 3,3 ', 4,4'-tetra (T-butylperoxycarbonyl) benzophenone, 4,4'-diethylaminobenzophenone These compounds can also be used in combination. The sensitizer can be used in an amount of 0.1 to 60 parts by weight with respect to 100 parts by weight of the photopolymerization initiator in the colored composition.
本発明の着色組成物には、顔料を充分に顔料担体中に分散させ、均一な塗膜を形成することを容易にするために、溶剤を含有させることができる。溶剤としては、例えばシクロヘキサノン、プロピレングリコールジアセテート、プロピレングリコールモノメチルエーテル、ジエチレングリコールジエチルエーテル、メチルイソブチルケトン、N−ブチルアルコール、ジプロピレングリコールモノメチルエーテル、トリ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プロピルエーテル、ジプロピレングリコールモノプロピルエーテル、プロピレングリコールモノブチルエーテル、ジプロピレングリコールモノブチルエーテル、トリプロピレングリコールモノメブチルエーテル、プロピレングリコールフェニルエーテル、ジプロピレングリコールモノメチルエーテルアセテート、1,3-ブチレングリコールジアセテート、エチレングリコールモノブチルエーテル、エチレングリコールモノブチルエーテルアセテート、ジエチレングリコールモノブチルエーテル、ジエチレングリコールモノブチルエーテルアセテート、3-メトキシブタノール、1,3-ブチレングリコール、トリアセチン、3,3,5-トリメチル-2-シクロヘキセン-1-オン、エチレングリコールモノエチルエーテル、γ−ブチロラクトン、酢酸イソアミル、3−エトキシプロピオン酸エチル、プロピレングリコールモノメチルエーテルアセテート、トルエン、O-キシレン、M-キシレン、P-キシレン、3−メトキシプロピオン酸メチル、酢酸ブチル、酢酸イソブチル、酢酸プロピル等が挙げられる。これらの溶剤は、単独でもしくは混合して用いることができる。 The coloring composition of the present invention can contain a solvent in order to facilitate the dispersion of the pigment in the pigment carrier and the formation of a uniform coating film. Examples of the solvent include cyclohexanone, propylene glycol diacetate, propylene glycol monomethyl ether, diethylene glycol diethyl ether, methyl isobutyl ketone, N-butyl alcohol, dipropylene glycol monomethyl ether, tripropylene glycol monomethyl ether, propylene glycol monopropyl ether, dipropylene. Glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monobutyl ether, tripropylene glycol monomethyl butyl ether, propylene glycol phenyl ether, dipropylene glycol monomethyl ether acetate, 1,3-butylene glycol diacetate, ethylene glycol monobutyl ether, ethylene Glycol monobutyl ether acetate, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, 3-methoxybutanol, 1,3-butylene glycol, triacetin, 3,3,5-trimethyl-2-cyclohexen-1-one, ethylene glycol monoethyl ether , Γ-butyrolactone, isoamyl acetate, ethyl 3-ethoxypropionate, propylene glycol monomethyl ether acetate, toluene, O-xylene, M-xylene, P-xylene, methyl 3-methoxypropionate, butyl acetate, isobutyl acetate, propyl acetate Etc. These solvents can be used alone or in combination.
溶剤は、着色組成物中の顔料組成物100重量部に対して、合計して800〜4000重量部、好ましくは1000〜2500重量部の量で用いることができる。 The solvent can be used in a total amount of 800 to 4000 parts by weight, preferably 1000 to 2500 parts by weight, based on 100 parts by weight of the pigment composition in the coloring composition.
本発明の着色組成物には、組成物の経時粘度を安定化させるために貯蔵安定剤を含有させることができる。また、基材との密着性を高めるためにシランカップリング剤等の密着向上剤を含有させることもできる。 The colored composition of the present invention can contain a storage stabilizer in order to stabilize the viscosity of the composition over time. Moreover, in order to improve adhesiveness with a base material, adhesion improving agents, such as a silane coupling agent, can also be contained.
また、本発明の着色組成物には、必要に応じて、本発明の効果を損なわない範囲で、熱重合防止剤、可塑剤、表面保護剤、平滑剤、塗布助剤、密着向上剤、塗布性向上剤又は現像改良剤などの添加剤を添加することができる。 In addition, the coloring composition of the present invention, if necessary, within a range not impairing the effects of the present invention, a thermal polymerization inhibitor, a plasticizer, a surface protective agent, a smoothing agent, a coating aid, an adhesion improver, a coating Additives such as property improvers or development improvers can be added.
本発明の着色組成物は、本発明の顔料組成物を、必要に応じて上記分散助剤、上記光重合開始剤と共に、顔料担体および有機溶剤中に三本ロールミル、二本ロールミル、横型サンドミル、縦型サンドミル、アニュラー型ビーズミル、ニーダー、アトライター等の各種分散手段を用いて微細に分散して製造することができる。また、2種以上の顔料を含む着色組成物は、各顔料を本発明の顔料分散剤を用いて別々に顔料担体および有機溶剤中に微細に分散したものを混合して製造することもできる。 The coloring composition of the present invention comprises a three-roll mill, a two-roll mill, a horizontal sand mill in the pigment carrier and an organic solvent, together with the dispersion aid and the photopolymerization initiator as necessary. It can be produced by finely dispersing using various dispersing means such as a vertical sand mill, an annular bead mill, a kneader, and an attritor. In addition, a coloring composition containing two or more kinds of pigments can also be produced by mixing each pigment separately finely dispersed in a pigment carrier and an organic solvent using the pigment dispersant of the present invention.
本発明の着色組成物は、着色組成物を構成する全ての成分を混合してから分散してもよいが、初めに顔料と本発明の顔料分散剤を、樹脂および/または有機溶剤の一部で分散し、次いで、残りの成分を添加して分散することが好ましい。 The coloring composition of the present invention may be dispersed after mixing all the components constituting the coloring composition. First, the pigment and the pigment dispersant of the present invention are mixed with a part of the resin and / or organic solvent. It is preferable to disperse and then add the remaining components and disperse.
また、横型サンドミル、縦型サンドミル、アニュラー型ビーズミル、アトライター等で分散を行う前に、ニーダー、三本ロールミル等の錬肉混合機を使用した前分散、二本ロールミル等による固形分散、または顔料へのチアジンインジゴ顔料分散剤の処理を行ってもよい。また、ビーズミル等で分散した後、30〜80℃の加温状態にて数時間〜1週間保存するエージングといわれる後処理や、超音波分散機や衝突型ビーズレス分散機を用いた後処理を行うと、着色組成物の安定性に対して有効である。このほか、マイクロフルイタイザー、ハイスピードミキサー、ホモミキサー、ボールミル、ロールミル、石臼式ミル、超音波分散機等のあらゆる分散機や混合機が本発明の着色組成物を製造するために利用できる。 Also, before dispersing with horizontal sand mill, vertical sand mill, annular bead mill, attritor, etc., pre-dispersion using knitted meat mixer such as kneader, three roll mill, solid dispersion with two roll mill, etc., or pigment The thiazine indigo pigment dispersant may be treated. In addition, after being dispersed by a bead mill or the like, a post-treatment called aging which is stored at a temperature of 30 to 80 ° C. for several hours to one week, or a post-treatment using an ultrasonic disperser or a collision type beadless disperser is performed. When done, it is effective for the stability of the colored composition. In addition, any disperser or mixer such as a microfluidizer, high speed mixer, homomixer, ball mill, roll mill, stone mill, or ultrasonic disperser can be used to produce the colored composition of the present invention.
本発明の着色組成物は、カラーフィルタの製造に用いられる場合には、遠心分離、焼結フィルター、メンブレンフィルター等の手段にて、5μM以上の粗大粒子、好ましくは1μM以上の粗大粒子、さらに好ましくは0.5μM以上の粗大粒子および混入した塵の除去を行うことが好ましい。 When the colored composition of the present invention is used for the production of a color filter, the coarse particles of 5 μM or more, preferably 1 μM or more, more preferably, by means of centrifugation, sintered filter, membrane filter or the like. It is preferable to remove coarse particles of 0.5 μM or more and mixed dust.
本発明の着色組成物は、グラビアオフセット用印刷インキ、水無しオフセット印刷インキ、シルクスクリーン印刷用インキ、溶剤現像型あるいはアルカリ現像型着色レジスト材として調製することができる。 The coloring composition of the present invention can be prepared as gravure offset printing ink, waterless offset printing ink, silk screen printing ink, solvent development type or alkali development type colored resist material.
溶剤現像型あるいはアルカリ現像型着色レジスト材は、顔料担体である熱可塑性樹脂、熱硬化性樹脂または感光性樹脂と、モノマーと、光重合開始剤と、溶剤とを含有する組成物中に、本発明の顔料組成物を分散させたものである。 The solvent development type or alkali development type colored resist material contains a thermoplastic resin, thermosetting resin or photosensitive resin as a pigment carrier, a monomer, a photopolymerization initiator, and a solvent. The pigment composition of the invention is dispersed.
さらに、本発明の着色組成物は、幅広い印刷インキや塗料、インクジェットインキ、さらにはプラスチックの着色においても、分散効果と経時安定性に優れ、着色力のある着色物が得られる。 Furthermore, the colored composition of the present invention is excellent in dispersion effect and stability over time even in the coloring of a wide range of printing inks, paints, inkjet inks, and plastics, and a colored product having coloring power can be obtained.
その場合、モノマーや光重合開始剤を用いず、前記の樹脂および溶剤の他に、石油樹脂、カゼイン、セラック、乾性油、合成乾性油等の樹脂、およびエチルセロソルブアセテート、ブチルセロソルブアセテート、エチルベンゼン、酢酸エチル、メタノール、エタノール、イソプロピルアルコール、ブタノール、エチレングリコール、グリセリン、ジメチルホルムアミド、ソルベッソ100(エクソン化学株式会社)、スワゾール1000、石油系溶剤等の溶剤を用い、必要に応じて界面活性剤および/または樹脂型顔料分散剤を用いて前記の方法により着色組成物を製造することができる。 In that case, without using a monomer or photopolymerization initiator, in addition to the resins and solvents described above, resins such as petroleum resin, casein, shellac, drying oil, synthetic drying oil, and ethyl cellosolve acetate, butyl cellosolve acetate, ethylbenzene, acetic acid Using a solvent such as ethyl, methanol, ethanol, isopropyl alcohol, butanol, ethylene glycol, glycerin, dimethylformamide, Solvesso 100 (Exxon Chemical Co., Ltd.), Swazol 1000, petroleum-based solvent, etc., if necessary, a surfactant and / or A colored composition can be produced by the above-described method using a resin-type pigment dispersant.
次に、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、透明あるいは反射基板上に、R(赤)、G(緑)、B(青)の3 色のフィルタセグメントが形成されたものや、Y( エロー)、M(マゼンタ)、C( シアン)の3 色のフィルタセグメントが形成されたもの等である。各色のフィルタセグメントは、印刷法またはフォトリソグラフィー法により、本発明の着色組成物を用いて形成することができる。 Next, the color filter will be described. The color filter of the present invention has a filter segment of three colors of R (red), G (green), B (blue) formed on a transparent or reflective substrate, Y (yellow), M (magenta) , C (cyan) three-color filter segments are formed, and the like. Each color filter segment can be formed by using the coloring composition of the present invention by a printing method or a photolithography method.
透明基板としては、石英ガラス、ホウケイ酸ガラス、アルミナケイ酸塩ガラス、表面をシリカコートしたソーダライムガラスなどのガラス板や、ポリカーボネート、ポリメタクリル酸メチル、ポリエチレンテレフタレートなどの樹脂板が用いられる。 As the transparent substrate, a glass plate such as quartz glass, borosilicate glass, alumina silicate glass, soda lime glass whose surface is coated with silica, or a resin plate such as polycarbonate, polymethyl methacrylate, or polyethylene terephthalate is used.
反射基板としては、シリコンや、前記の透明基板上にアルミニウム、銀、銀/ 銅/ パラジウム合金薄膜などを形成したものが用いられる。 As the reflective substrate, silicon or a substrate obtained by forming an aluminum, silver, silver / copper / palladium alloy thin film on the transparent substrate is used.
印刷法による各色フィルタセグメントの形成は、上記各種の印刷インキとして調製した着色組成物の印刷と乾燥を繰り返すだけでパターン化ができるため、カラーフィルタの製造法としては、低コストで量産性に優れている。さらに、印刷技術の発展により高い寸法精度および平滑度を有する微細パターンの印刷を行うことができる。印刷を行うためには、印刷の版上にて、あるいはブランケット上にてインキが乾燥、固化しないような組成とすることが好ましい。また、印刷機上でのインキの流動性の制御も重要であり、分散剤や体質顔料によるインキ粘度の調整を行うこともできる。 The formation of each color filter segment by the printing method can be patterned simply by repeating the printing and drying of the colored composition prepared as the above various printing inks. Therefore, the color filter manufacturing method is low-cost and excellent in mass productivity. ing. Furthermore, it is possible to print a fine pattern having high dimensional accuracy and smoothness by the development of printing technology. In order to perform printing, it is preferable that the ink does not dry and solidify on the printing plate or on the blanket. Control of ink fluidity on a printing press is also important, and ink viscosity can be adjusted with a dispersant or extender pigment.
フォトリソグラフィー法により各色フィルタセグメントを形成する場合は、上記溶剤現像型あるいはアルカリ現像型着色レジスト材として調製した着色組成物を、透明基板上に、スプレーコートやスピンコート、スリットコート、ロールコート等の塗布方法により、乾燥膜厚が0 . 2 〜 5 μ m となるように塗布する。必要により乾燥された膜には、この膜と接触あるいは非接触状態で設けられた所定のパターンを有するマスクを通して紫外線露光を行う。その後、溶剤またはアルカリ現像液に浸漬するか、もしくはスプレーなどにより現像液を噴霧して未硬化部を除去し所望のパターンを形成したのち、同様の操作を他色について繰り返してカラーフィルタを製造することができる。さらに、着色レジスト材の重合を促進するため、必要に応じて加熱を施すこともできる。フォトリソグラフィー法によれば、上記印刷法より精度の高いカラーフィルタが製造できる。 When forming each color filter segment by a photolithography method, the colored composition prepared as the solvent developing type or alkali developing type colored resist material is applied on a transparent substrate, such as spray coating, spin coating, slit coating, roll coating, etc. Depending on the coating method, the dry film thickness is 0. Apply to 2-5 μm. If necessary, the dried film is exposed to ultraviolet light through a mask having a predetermined pattern provided in contact with or non-contact with the film. Then, after immersing in a solvent or an alkaline developer, or spraying the developer with a spray or the like to remove the uncured portion to form a desired pattern, the same operation is repeated for other colors to produce a color filter. be able to. Furthermore, in order to accelerate the polymerization of the colored resist material, heating can be performed as necessary. According to the photolithography method, a color filter with higher accuracy than the above printing method can be manufactured.
現像に際しては、アルカリ現像液として炭酸ナトリウム、水酸化ナトリウム等の水溶液が使用され、ジメチルベンジルアミン、トリエタノールアミン等の有機アルカリを用いることもできる。また、現像液には、消泡剤や界面活性剤を添加することもできる。 In development, an aqueous solution such as sodium carbonate or sodium hydroxide is used as an alkali developer, and an organic alkali such as dimethylbenzylamine or triethanolamine can also be used. Moreover, an antifoamer and surfactant can also be added to a developing solution.
なお、紫外線露光感度を上げるために、上記着色レジスト材を塗布乾燥後、水溶性あるいはアルカリ可溶性樹脂、例えばポリビニルアルコールや水溶性アクリル樹脂等を塗布乾燥し酸素による重合阻害を防止する膜を形成した後、紫外線露光を行うこともできる。 In order to increase the UV exposure sensitivity, after coating and drying the colored resist material, a water-soluble or alkali-soluble resin such as polyvinyl alcohol or a water-soluble acrylic resin is applied and dried to form a film that prevents polymerization inhibition by oxygen. Thereafter, ultraviolet exposure can also be performed.
本発明のカラーフィルタは、上記方法の他に電着法、転写法などにより製造することができるが、本発明の着色組成物は、いずれの方法にも用いることができる。なお、電着法は、透明基板上に形成した透明導電膜を利用して、コロイド粒子の電気泳動により各色フィルタセグメントを透明導電膜の上に電着形成することでカラーフィルタを製造する方法である。 The color filter of the present invention can be produced by an electrodeposition method, a transfer method, or the like in addition to the above method, but the colored composition of the present invention can be used in any method. The electrodeposition method is a method for producing a color filter by using a transparent conductive film formed on a transparent substrate and forming each color filter segment on the transparent conductive film by electrophoresis of colloidal particles. is there.
また、転写法は剥離性の転写ベースシートの表面に、あらかじめカラーフィルタ層を形成しておき、このカラーフィルタ層を所望の透明基板に転写させる方法である。 The transfer method is a method in which a color filter layer is formed in advance on the surface of a peelable transfer base sheet, and this color filter layer is transferred to a desired transparent substrate.
透明基板あるいは反射基板上にフィルタセグメントを形成する前に、あらかじめブラックマトリクスを形成しておくと、液晶表示パネルのコントラスト比を一層高めることができる。ブラックマトリクスとしては、クロムやクロム/ 酸化クロムの多層膜、窒化チタニウムなどの無機膜や、遮光剤を分散した樹脂膜が用いられるが、これらに限定されない。また、前記の透明基板あるいは反射基板上に薄膜トランジスター(TFT) をあらかじめ形成しておき、その後にフィルタセグメントを形成することもできる。TFT基板上にフィルタセグメントを形成することにより、液晶表示パネルの開口率を高め、輝度を向上させることができる。 If a black matrix is formed in advance before forming the filter segment on the transparent substrate or the reflective substrate, the contrast ratio of the liquid crystal display panel can be further increased. As the black matrix, a multilayer film of chromium, chromium / chromium oxide, an inorganic film such as titanium nitride, or a resin film in which a light shielding agent is dispersed is used, but is not limited thereto. Further, a thin film transistor (TFT) may be formed in advance on the transparent substrate or the reflective substrate, and then a filter segment may be formed. By forming the filter segment on the TFT substrate, the aperture ratio of the liquid crystal display panel can be increased and the luminance can be improved.
本発明のカラーフィルタ上には、必要に応じてオーバーコート膜や柱状スペーサー、透明導電膜、液晶配向膜などが形成される。 On the color filter of the present invention, an overcoat film, a columnar spacer, a transparent conductive film, a liquid crystal alignment film, and the like are formed as necessary.
カラーフィルタは、シール剤を用いて対向基板と張り合わせ、シール部に設けられた注入口から液晶を注入したのち注入口を封止し、必要に応じて偏光膜や位相差膜を基板の外側に張り合わせることにより、液晶表示パネルが製造される。 The color filter is bonded to the counter substrate using a sealant, and after injecting liquid crystal from the injection port provided in the seal part, the injection port is sealed, and if necessary, a polarizing film or a retardation film is placed outside the substrate. A liquid crystal display panel is manufactured by bonding.
かかる液晶表示パネルは、ツイステッド・ネマティック(TN) 、スーパー・ツイステッド・ネマティック(STN) 、イン・プレーン・スイッチング(IPS) 、ヴァーティカリー・アライメント(VA) 、オプティカリー・コンベンセンド・ベンド(OCB) などのカラーフィルタを使用してカラー化を行う液晶表示モードに使用することができる。 Such liquid crystal display panels include twisted nematic (TN), super twisted nematic (STN), in-plane switching (IPS), vertical alignment (VA), and optically convented bend (OCB). It can be used for a liquid crystal display mode in which colorization is performed using a color filter.
以下、実施例により本発明を説明する。例中、部とは重量部を表す。 Hereinafter, the present invention will be described by way of examples. In the examples, parts represent parts by weight.
[実施例1]
(顔料分散剤1(D−1)の製造)
tert−アミルアルコール200部に、トルエン中カリウムtert−アミレートの25%溶液480部を添加する。90℃(容器内温度)まで加熱した後、9−シアノフェナントレン102部を添加し、さらに30分間かけてジイソプロピルスクシナート76部を滴下添加する。この混合物をその温度で4時間撹拌する。得られた懸濁物を水2000部、メタノール2000部及び酢酸30部とからなる混合物に歯付円盤で激しく撹拌しながら添加し、そして添加後さらに10分間撹拌する。この混合物を濾過し、濾過生成物をメタノールと水で洗って80℃で乾燥し、23部の顔料を得た。得られた顔料10部を20%発煙硫酸100部に10℃以下で添加し、その後50℃で5時間反応させた。冷却後、反応混合物を1,500部の冷メチルエチルケトン(MEK)中に析出させ、濾過および1500部の冷MEKで洗浄した。80度で乾燥させた後、11部の顔料分散剤1(D−1)を得た。
[Example 1]
(Production of Pigment Dispersant 1 (D-1))
To 200 parts of tert-amyl alcohol is added 480 parts of a 25% solution of potassium tert-amylate in toluene. After heating to 90 ° C. (temperature in the container), 102 parts of 9-cyanophenanthrene is added, and 76 parts of diisopropyl succinate is further added dropwise over 30 minutes. The mixture is stirred at that temperature for 4 hours. The resulting suspension is added to a mixture of 2000 parts of water, 2000 parts of methanol and 30 parts of acetic acid with vigorous stirring with a toothed disk and stirred for another 10 minutes after the addition. The mixture was filtered and the filtered product was washed with methanol and water and dried at 80 ° C. to obtain 23 parts of pigment. 10 parts of the obtained pigment was added to 100 parts of 20% fuming sulfuric acid at 10 ° C. or less, and then reacted at 50 ° C. for 5 hours. After cooling, the reaction mixture was precipitated into 1,500 parts of cold methyl ethyl ketone (MEK), filtered and washed with 1500 parts of cold MEK. After drying at 80 degrees, 11 parts of Pigment Dispersant 1 (D-1) was obtained.
[実施例2]
(顔料分散剤2(D−2)の製造)
メタノール50部と蒸留水200部の混合溶液中に、顔料分散剤1(D−1)10部を室温で仕込んだ。室温で1時間攪拌した後、15部の硫酸アルミニウム水溶液(アルミナとして8%)を20分かけて滴下し、80度で2時間攪拌した。反応溶液を室温に冷却した後、生成物をろ過、水で洗浄し、80度で乾燥させた。これにより、8.2部の顔料分散剤2(D−2)を得た
[Example 2]
(Production of Pigment Dispersant 2 (D-2))
In a mixed solution of 50 parts of methanol and 200 parts of distilled water, 10 parts of pigment dispersant 1 (D-1) was charged at room temperature. After stirring at room temperature for 1 hour, 15 parts of an aqueous aluminum sulfate solution (8% as alumina) was added dropwise over 20 minutes and stirred at 80 degrees for 2 hours. After the reaction solution was cooled to room temperature, the product was filtered, washed with water, and dried at 80 degrees. This obtained 8.2 parts of pigment dispersant 2 (D-2).
[比較例1]
(顔料分散剤3(D−3)の製造)
C.I. PIGMENT RED 272、チバ・スペシャリティ・ケミカルズ株式会社製「Cromophtal DPP Flame Red FP」)10部を20%発煙硫酸100部に10℃以下で添加し、その後50℃で5時間反応させた。冷却後、反応混合物を1,500部の冷アセトン中に析出させ、濾過および冷アセトンで洗浄した。80度で乾燥させた後、8部の顔料分散剤3(D−3)を得た。
[Comparative Example 1]
(Production of Pigment Dispersant 3 (D-3))
C.I. PIGMENT RED 272, “Chromophthal DPP Flame Red FP” manufactured by Ciba Specialty Chemicals Co., Ltd.) 10 parts was added to 100 parts of 20% fuming sulfuric acid at 10 ° C. or less, followed by reaction at 50 ° C. for 5 hours. . After cooling, the reaction mixture was precipitated into 1,500 parts of cold acetone, filtered and washed with cold acetone. After drying at 80 degrees, 8 parts of pigment dispersant 3 (D-3) was obtained.
[比較例2]
(顔料分散剤4(D−4)の製造)
C.I. PIGMENT RED 264、チバ・スペシャリティ・ケミカルズ株式会社製「Irgazin DPP Rubine TR」)10部を20%発煙硫酸100部に10℃以下で添加し、その後50℃で5時間反応させた。冷却後、反応混合物を1,500部の冷アセトン中に析出させ、濾過および冷アセトンで洗浄した。80度で乾燥させた後、8.5部の顔料分散剤4(D−4)を得た。
[Comparative Example 2]
(Production of Pigment Dispersant 4 (D-4))
C.I. PIGMENT RED 264, “Irgazin DPP Rubin TR” manufactured by Ciba Specialty Chemicals Co., Ltd.) was added to 100 parts of 20% fuming sulfuric acid at 10 ° C. or less, and then reacted at 50 ° C. for 5 hours. After cooling, the reaction mixture was precipitated into 1,500 parts of cold acetone, filtered and washed with cold acetone. After drying at 80 degrees, 8.5 parts of Pigment Dispersant 4 (D-4) was obtained.
<顔料組成物の製造方法> <Method for producing pigment composition>
(赤色処理顔料の調整)
ジケトピロロピロール(以下、DPPという。)系赤色顔料 (C.I. PIGMENT RED 254、チバ・スペシャリティ・ケミカルズ株式会社製「IRGAPHOR RED B−CF」)150部、塩化ナトリウム1500部、およびジエチレングリコール200部の混合物を、ステンレス製1ガロンニーダー(井上製作所)を使用し、60℃で12時間混練した。次に、この混練物を5リットルの温水に投入し、70℃に加熱しながら1時間攪拌してスラリー状とした。ろ過、水洗を繰り返して塩化ナトリウムおよびジエチレングリコールを除去後、80℃で一昼夜乾燥し、135部の赤色処理顔料を得た。
(Adjustment of red processed pigment)
150 parts of diketopyrrolopyrrole (hereinafter referred to as DPP) red pigment (CI Pigment Red 254, “IRGAPHOR RED B-CF” manufactured by Ciba Specialty Chemicals Co., Ltd.), 1500 parts of sodium chloride, and diethylene glycol 200 Part of the mixture was kneaded at 60 ° C. for 12 hours using a stainless steel 1 gallon kneader (Inoue Seisakusho). Next, this kneaded material was put into 5 liters of warm water and stirred for 1 hour while heating to 70 ° C. to form a slurry. Filtration and washing were repeated to remove sodium chloride and diethylene glycol, followed by drying at 80 ° C. for a whole day and night to obtain 135 parts of a red-treated pigment.
(ジアントラキノン系顔料1(PR177−1)の製造)
ジアントラキノン系顔料(C.I. Pigment Red 177)150部、塩化ナトリウム1500部、およびジエチレングリコール200部の混合物を、ステンレス製1ガロンニーダー(井上製作所)を使用し、60℃で10時間混練した。次に、この混練物を5リットルの温水に投入し、70℃に加熱しながら1時間攪拌してスラリー状とした。ろ過、水洗を繰り返して塩化ナトリウムおよびジエチレングリコールを除去後、乾燥、粉砕して135部のジアントラキノン系顔料1(PR177−1)を得た。
(Production of dianthraquinone pigment 1 (PR177-1))
A mixture of 150 parts of dianthraquinone pigment (CI Pigment Red 177), 1500 parts of sodium chloride and 200 parts of diethylene glycol was kneaded at 60 ° C. for 10 hours using a stainless steel 1 gallon kneader (Inoue Seisakusho). Next, this kneaded material was put into 5 liters of warm water and stirred for 1 hour while heating to 70 ° C. to form a slurry. Filtration and washing were repeated to remove sodium chloride and diethylene glycol, followed by drying and pulverization to obtain 135 parts of dianthraquinone pigment 1 (PR177-1).
<アクリル樹脂溶液の製造方法> <Method for producing acrylic resin solution>
(アクリル樹脂溶液1の調製)
セパラブル4口フラスコに温度計、冷却管、窒素ガス導入管、滴下管および撹拌装置を取り付けた反応容器にシクロヘキサノン196部を仕込み、80℃に昇温し、反応容器内を窒素置換した後、滴下管より、n−ブチルメタクリレート37.2部、2−ヒドロキシエチルメタクリレート12.9部、メタクリル酸12.0部、パラクミルフェノールエチレンオキサイド変性アクリレート(東亞合成株式会社製「アロニックスM110」)20.7部、2,2’−アゾビスイソブチロニトリル1.1部の混合物を2時間かけて滴下した。滴下終了後、更に3時間反応を継続し、アクリル樹脂の溶液を得た。室温まで冷却した後、樹脂溶液約2部をサンプリングして180℃、20分加熱乾燥して不揮発分を測定し、先に合成した樹脂溶液に不揮発分が20質量%になるようにメトキシプロピルアセテートを添加してアクリル樹脂溶液1を調製した。重量平均分子量(Mw)は26000であった。
(Preparation of acrylic resin solution 1)
A reaction vessel equipped with a separable four-necked flask equipped with a thermometer, a cooling tube, a nitrogen gas introduction tube, a dropping tube and a stirring device was charged with 196 parts of cyclohexanone, heated to 80 ° C., and purged with nitrogen in the reaction vessel. From the tube, 37.2 parts of n-butyl methacrylate, 12.9 parts of 2-hydroxyethyl methacrylate, 12.0 parts of methacrylic acid, paracumylphenol ethylene oxide modified acrylate (“Aronix M110” manufactured by Toagosei Co., Ltd.) 20.7 A mixture of 1.1 parts of 2,2′-azobisisobutyronitrile was added dropwise over 2 hours. After completion of the dropwise addition, the reaction was continued for another 3 hours to obtain an acrylic resin solution. After cooling to room temperature, about 2 parts of the resin solution was sampled, heated and dried at 180 ° C. for 20 minutes, and the nonvolatile content was measured. The methoxypropyl acetate was added to the previously synthesized resin solution so that the nonvolatile content was 20% by mass. Was added to prepare an acrylic resin solution 1. The weight average molecular weight (Mw) was 26000.
(アクリル樹脂溶液2の調製)
セパラブル4口フラスコに温度計、冷却管、窒素ガス導入管、滴下管および撹拌装置を取り付けた反応容器にシクロヘキサノン207部を仕込み、80℃に昇温し、反応容器内を窒素置換した後、滴下管より、メタクリル酸20部、パラクミルフェノールエチレンオキサイド変性アクリレート(東亜合成社製アロニックスM110)20部、メタクリル酸メチル45部、2−ヒドロキシエチルメタクリレート8.5部、及び2,2'−アゾビスイソブチロニトリル1.33部の混合物を2時間かけて滴下した。滴下終了後、更に3時間反応を継続し、共重合体樹脂溶液を得た。次に得られた共重合体溶液全量に対して、窒素ガスを停止し乾燥空気を1時間注入しながら攪拌したのちに、室温まで冷却した後、2−メタクリロイルオキシエチルイソシアネート(昭和電工社製カレンズMOI)6.5部、ラウリン酸ジブチル錫0.08部、シクロヘキサノン26部の混合物を70℃で3時間かけて滴下した。滴下終了後、更に1時間反応を継続し、アクリル樹脂の溶液を得た。室温まで冷却した後、樹脂溶液約2部をサンプリングして180℃、20分加熱乾燥して不揮発分を測定し、先に合成した樹脂溶液に不揮発分が20質量%になるようにシクロヘキサノンを添加してアクリル樹脂溶液2を調製した。重量平均分子量(Mw)は18000であった。
(Preparation of acrylic resin solution 2)
207 parts of cyclohexanone was charged into a reaction vessel equipped with a separable four-necked flask equipped with a thermometer, a cooling tube, a nitrogen gas introduction tube, a dropping tube and a stirring device, heated to 80 ° C., and the inside of the reaction vessel was purged with nitrogen. From the tube, 20 parts of methacrylic acid, 20 parts of paracumylphenol ethylene oxide modified acrylate (Aronix M110 manufactured by Toagosei Co., Ltd.), 45 parts of methyl methacrylate, 8.5 parts of 2-hydroxyethyl methacrylate, and 2,2′-azobis A mixture of 1.33 parts of isobutyronitrile was added dropwise over 2 hours. After completion of the dropwise addition, the reaction was further continued for 3 hours to obtain a copolymer resin solution. Next, after the nitrogen gas was stopped and stirred while injecting dry air for 1 hour with respect to the total amount of the copolymer solution obtained, the mixture was cooled to room temperature, and then 2-methacryloyloxyethyl isocyanate (Karenz manufactured by Showa Denko KK). MOI) A mixture of 6.5 parts, 0.08 part dibutyltin laurate and 26 parts cyclohexanone was added dropwise at 70 ° C. over 3 hours. After completion of the dropwise addition, the reaction was further continued for 1 hour to obtain an acrylic resin solution. After cooling to room temperature, sample 2 parts of the resin solution, heat dry at 180 ° C. for 20 minutes, measure the nonvolatile content, and add cyclohexanone to the previously synthesized resin solution so that the nonvolatile content is 20% by mass. Thus, an acrylic resin solution 2 was prepared. The weight average molecular weight (Mw) was 18000.
アクリル樹脂の重量平均分子量は、GPC(ゲルパーミエーションクロマトグラフィ)により測定したポリスチレン換算の重量平均分子量である。 The weight average molecular weight of the acrylic resin is a polystyrene equivalent weight average molecular weight measured by GPC (gel permeation chromatography).
<顔料組成物を使用した着色組成物の作製方法>
実施例3〜5および比較例3〜5
赤色処理顔料、顔料分散剤1〜4(D1〜D4)、アクリル樹脂溶液1、樹脂型分散剤(味の素ファインテクノ社製「アジスパーPB821」)および溶剤(プロピレングリコールモノメチルエーテルアセテート)を、それぞれ表1の通りに配合し、均一に撹拌混合した後、直径0.5mmのジルコニアビーズを用いて、アイガーミル(アイガージャパン社製「ミニモデルM−250 MKII」)で6時間分散した。これを5μmのフィルターで濾過し、着色組成物1〜6(RP1〜6)を調製した。
<The preparation method of the coloring composition which uses a pigment composition>
Examples 3-5 and Comparative Examples 3-5
Table 1 shows red-treated pigment, pigment dispersants 1 to 4 (D1 to D4), acrylic resin solution 1, resin type dispersant (Ajinomoto Fine Techno Co., Ltd. “Ajisper PB821”) and solvent (propylene glycol monomethyl ether acetate). Then, the mixture was stirred and mixed uniformly, and then dispersed with an Eiger mill (“Mini Model M-250 MKII” manufactured by Eiger Japan) for 6 hours using zirconia beads having a diameter of 0.5 mm. This was filtered with a 5 μm filter to prepare colored compositions 1 to 6 (RP1 to 6).
(着色組成物の評価)
<粘度>
実施例3〜5及び比較例3〜5で得られたカラーフィルタ用着色組成物の25℃における粘度を、コーンプレートタイプの粘度計(東機産業社製「TVE−20L型」)で測定した。さらに、着色組成物を4 0 ℃ で1 週間保存した後に、2 5 ℃ における粘度を測定した。
(Evaluation of coloring composition)
<Viscosity>
The viscosity at 25 ° C. of the color filter coloring compositions obtained in Examples 3 to 5 and Comparative Examples 3 to 5 was measured with a cone plate type viscometer (“TVE-20L type” manufactured by Toki Sangyo Co., Ltd.). . Further, after the coloring composition was stored at 40 ° C. for 1 week, the viscosity at 25 ° C. was measured.
経時粘度安定性を◎ 、(増粘がほとんどない)、○ (若干増粘が見られるが使用可能範囲)、△ (増粘が見られ使用不可)、× (著しい増粘があり使用不可)の四段階で表した。 Viscosity stability over time ◎, (There is almost no thickening), ○ (Slight thickening is seen but usable range), △ (Thickening is seen and cannot be used), × (Unusable due to significant thickening) It was expressed in four stages.
表1に示したように、本発明の顔料分散剤は良好な分散性を示した。 As shown in Table 1, the pigment dispersant of the present invention showed good dispersibility.
表1
<その他着色組成物の作製方法>
(着色組成物7(RP−7)の作製)
以下に示す配合組成の混合物を均一に撹拌混合し、直径0.5mmのジルコニアビーズを用いて、アイガーミル(アイガージャパン社製「ミニモデルM−250 MKII」)で6時間分散した。これを5μmのフィルターで濾過し、着色組成物7(RP−7)を作製した。
ジアントラキノン系顔料(PR177−1) 10.8部
式(2)の色素誘導体 1.2部
アクリル樹脂溶液1 40.0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 48.0部
<Method for producing other colored composition>
(Preparation of colored composition 7 (RP-7))
A mixture having the composition shown below was uniformly stirred and mixed, and dispersed for 6 hours in an Eiger mill (“Mini Model M-250 MKII” manufactured by Eiger Japan) using zirconia beads having a diameter of 0.5 mm. This was filtered with a 5-micrometer filter, and the coloring composition 7 (RP-7) was produced.
Dianthraquinone pigment (PR177-1) 10.8 parts Dye derivative of formula (2) 1.2 parts Acrylic resin solution 1 40.0 parts Propylene glycol monomethyl ether acetate 48.0 parts
<感光性着色組成物の作製方法>
[実施例6]
(感光性着色組成物1(RR−1)の作製)
下記組成の混合物を均一になるように攪拌混合した後、1μmのフィルタで濾過し、感光性着色組成物1(RR−1)を作製した。
着色組成物1(RP−1) 32.2部
着色組成物7(RP−7) 9.8部
アクリル樹脂溶液2 13.2部
光重合性単量体(東亞合成社製「アロニックスM400」) 2.8部
光重合開始剤(チバ・ジャパン社製「イルガキュアー907」) 2.0部
増感剤(保土ヶ谷化学社製「EAB−F」) 0.4部
エチレングリコールモノメチルエーテルアセテート 39.6部
<Production method of photosensitive coloring composition>
[Example 6]
(Preparation of photosensitive coloring composition 1 (RR-1))
A mixture having the following composition was stirred and mixed so as to be uniform, and then filtered through a 1 μm filter to prepare photosensitive coloring composition 1 (RR-1).
Coloring composition 1 (RP-1) 32.2 parts Coloring composition 7 (RP-7) 9.8 parts Acrylic resin solution 2 13.2 parts Photopolymerizable monomer (“Aronix M400” manufactured by Toagosei Co., Ltd.) 2.8 parts photopolymerization initiator ("Irgacure 907" manufactured by Ciba Japan) 2.0 parts sensitizer ("EAB-F" manufactured by Hodogaya Chemical Co., Ltd.) 0.4 parts ethylene glycol monomethyl ether acetate 39.6 Part
[実施例7]
(感光性着色組成物2(RR−2)の作製)
着色組成物1(RP−1)を着色組成物3(RP−3)に変更し、さらに着色組成物3(RP−3)と着色組成物7(RP−7の比率を変更(着色組成物の全量42部内で比率変更)する以外は、実施例6と同様にして感光性着色組成物2(RR−2)を作製した。尚、比率変更については、塗膜評価の際にC光源でx=0.640、y=0.328の色度に合うように、着色組成物3(RP−3)と着色組成物7(RP−7)の比率を変更した。
[Example 7]
(Preparation of photosensitive coloring composition 2 (RR-2))
The colored composition 1 (RP-1) is changed to the colored composition 3 (RP-3), and the ratio between the colored composition 3 (RP-3) and the colored composition 7 (RP-7 is changed (colored composition). The photosensitive coloring composition 2 (RR-2) was prepared in the same manner as in Example 6 except that the ratio was changed within 42 parts of the total amount of C. The ratio was changed using a C light source during coating evaluation. The ratio of the colored composition 3 (RP-3) and the colored composition 7 (RP-7) was changed so as to meet the chromaticity of x = 0.640 and y = 0.328.
[比較例6、7]
(感光性着色組成物3、4(RR−3、4)の作製)
着色組成物1(RP−1)を着色組成物4、5(RP−4、5)に変更し、さらに着色組成物4、5(RP−4、5)と着色組成物7(RP−7)の比率を変更(着色組成物の全量42部内で比率変更)する以外は、実施例6と同様にして感光性着色組成物3、4(RR−3、4)を作製した。尚、比率変更については、塗膜評価の際にC光源でx=0.640、y=0.328の色度に合うように、着色組成物4、5(RP−4、5)と着色組成物7(RP−7)の比率を変更した。
[Comparative Examples 6 and 7]
(Preparation of photosensitive coloring compositions 3, 4 (RR-3, 4))
Coloring composition 1 (RP-1) is changed to coloring composition 4, 5 (RP-4, 5), and coloring composition 4, 5 (RP-4, 5) and coloring composition 7 (RP-7) ) Was changed in the same manner as in Example 6 except that the ratio was changed within 42 parts of the total amount of the colored composition. Photosensitive colored compositions 3 and 4 (RR-3 and 4) were produced. In addition, about the ratio change, it colors with coloring composition 4, 5 (RP-4, 5) so that it may suit chromaticity of x = 0.640, y = 0.328 with a C light source in the case of coating-film evaluation. The ratio of composition 7 (RP-7) was changed.
<感光性着色組成物を用いた塗膜作製と評価>
得られた感光性着色組成物(RR−1〜4)を用いて作製した赤色塗膜の色特性、コントラスト比、の評価を下記方法で行った。表2に感光性着色組成物中の着色組成物の種類および評価結果を示す。
<Preparation and evaluation of coating film using photosensitive coloring composition>
The color characteristics and contrast ratio of the red coating film produced using the obtained photosensitive coloring composition (RR-1 to 4) were evaluated by the following methods. Table 2 shows the types and evaluation results of the coloring compositions in the photosensitive coloring composition.
(塗膜の色特性評価)
100mm×100mm、0.7mm厚のガラス基板上に、C光源においてx=0.640、y=0.328になるような膜厚に感光性着色組成物を塗布し、乾燥後、超高圧水銀ランプを用いて300mJ/cm2の紫外線を照射した。さらに、230℃で60分加熱することで赤色塗膜を得た。その後、得られた塗膜の明度(Y)を顕微分光光度計(オリンパス光学社製「OSP−SP200」)で測定した。
(Evaluation of color characteristics of coating film)
On a glass substrate of 100 mm × 100 mm and 0.7 mm thickness, a photosensitive coloring composition is applied to a film thickness such that x = 0.640 and y = 0.328 with a C light source, and after drying, ultrahigh pressure mercury An ultraviolet ray of 300 mJ / cm 2 was irradiated using a lamp. Furthermore, the red coating film was obtained by heating at 230 degreeC for 60 minutes. Then, the brightness (Y) of the obtained coating film was measured with a microspectrophotometer (“OSP-SP200” manufactured by Olympus Optical Co., Ltd.).
(塗膜のコントラスト比評価)
塗膜のコントラスト比の測定法について説明する。液晶ディスプレー用バックライトユニットから出た光は、偏光板を通過して偏光され、ガラス基板上に塗布された着色組成物の乾燥塗膜を通過し、偏光板に到達する。偏光板と偏光板の偏光面が平行であれば、光は偏光板を透過するが、偏光面が直行している場合には光は偏光板により遮断される。しかし、偏光板によって偏光された光が着色組成物の乾燥塗膜を通過するときに、顔料粒子による散乱等が起こり、偏光面の一部にずれを生じると、偏光板が平行のときは偏光板を透過する光量が減り、偏光板が直行のときは偏光板を一部光が透過する。この透過光を偏光板上の輝度として測定し、偏光板が平行のときの輝度と、直行のときの輝度との比(コントラスト比)を算出した。
(コントラスト比)=(平行のときの輝度)/(直行のときの輝度)
(Evaluation of contrast ratio of coating film)
A method for measuring the contrast ratio of the coating film will be described. The light emitted from the backlight unit for liquid crystal display passes through the polarizing plate, is polarized, passes through the dried coating film of the colored composition applied on the glass substrate, and reaches the polarizing plate. If the polarizing planes of the polarizing plate and the polarizing plate are parallel, light is transmitted through the polarizing plate, but if the polarizing plane is perpendicular, the light is blocked by the polarizing plate. However, when the light polarized by the polarizing plate passes through the dried coating film of the colored composition, scattering by the pigment particles occurs, resulting in deviation in a part of the polarization plane. When the amount of light transmitted through the plate is reduced and the polarizing plate is perpendicular, a part of the light is transmitted through the polarizing plate. This transmitted light was measured as the luminance on the polarizing plate, and the ratio (contrast ratio) between the luminance when the polarizing plate was parallel and the luminance when it was orthogonal was calculated.
(Contrast ratio) = (Luminance when parallel) / (Luminance when direct)
従って、塗膜中の顔料により散乱が起こると、平行のときの輝度が低下し、かつ直行のときの輝度が増加するため、コントラスト比が低くなる。 Accordingly, when scattering occurs due to the pigment in the coating film, the brightness when parallel is reduced and the brightness when perpendicular is increased, the contrast ratio is lowered.
なお、輝度計としては色彩輝度計(トプコン社製「BM−5A」)、偏光板としては偏光板(日東電工社製「NPF−G1220DUN」)を用いた。なお、測定に際しては、不要光を遮断するために、測定部分に1cm角の孔を開けた黒色のマスクを当てた。また、コントラスト比測定には色特性評価時と同様の方法で得られた赤色塗膜を使用した。 A color luminance meter ("BM-5A" manufactured by Topcon Corporation) was used as the luminance meter, and a polarizing plate ("NPF-G1220DUN" manufactured by Nitto Denko Corporation) was used as the polarizing plate. In the measurement, a black mask with a 1 cm square hole was applied to the measurement portion in order to block unnecessary light. In contrast ratio measurement, a red coating film obtained by the same method as that used for color characteristic evaluation was used.
表2に示したように、特許文献1記載の顔料分散剤3、4(D−3、4)に比べ明度(Y)の点で良好な結果を示した。また、塗布基板のコントラストも良好であった。 As shown in Table 2, compared with pigment dispersants 3 and 4 (D-3 and 4) described in Patent Document 1, favorable results were shown in terms of brightness (Y). Also, the contrast of the coated substrate was good.
表2
Claims (6)
(式(1)中、R1〜R18は、それぞれ独立に、水素原子、ハロゲン原子、ヒドロキシル基、アルキル基、アルコキシ基、ニトロ基、アミノ基、シアノ基、スルホン酸基、または、カルボン酸基を表す。
Yは、直接結合、−O−、−S(O)m−(ここでmは、0から3の整数を表す。)、−CO−、−NR19−、−CONR19−、−NR19CO−、−NR19SO2−、−SO2NR19−(ここでR19は、水素原子、アルキル基、またはヒドロキシアルキル基を表す。)、炭素数1〜12の直鎖または枝分かれしたアルキレン基、あるいは、アルキル基、アミノ基、ニトロ基、水酸基、アルコキシ基、またはハロゲン原子で置換されてもよいベンゼン残基、あるいは、トリアジン残基、または、これらの結合基を2個以上組み合わせた結合基を表す。
Mn+は、水素イオン、金属イオン、または、少なくとも1のアルキル基で置換されているアンモニウムイオンを表し、
nはMの価数を表し、1〜3の整数を表す。
pおよびqは0〜6の数字であり、pとqの和は1〜6である。) A pigment dispersant represented by the following formula (1).
(In Formula (1), R < 1 > -R < 18 > is respectively independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, a nitro group, an amino group, a cyano group, a sulfonic acid group, or carboxylic acid. Represents a group.
Y is a direct bond, —O—, —S (O) m— (where m represents an integer of 0 to 3), —CO—, —NR 19 —, —CONR 19 —, —NR 19. CO -, - NR 19 SO2 - , - SO2NR 19 - (. wherein R 19 is represents a hydrogen atom, an alkyl group or hydroxyalkyl group), straight chain or branched alkylene group having 1 to 12 carbon atoms, or, Represents an alkyl group, an amino group, a nitro group, a hydroxyl group, an alkoxy group, a benzene residue that may be substituted with a halogen atom, a triazine residue, or a linking group obtained by combining two or more of these linking groups. .
M n + represents a hydrogen ion, a metal ion, or an ammonium ion substituted with at least one alkyl group;
n represents the valence of M and represents an integer of 1 to 3.
p and q are numbers from 0 to 6, and the sum of p and q is 1 to 6. )
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