WO2010134398A1 - マゼンタ色素、インク組成物及び着色体 - Google Patents
マゼンタ色素、インク組成物及び着色体 Download PDFInfo
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- WO2010134398A1 WO2010134398A1 PCT/JP2010/056455 JP2010056455W WO2010134398A1 WO 2010134398 A1 WO2010134398 A1 WO 2010134398A1 JP 2010056455 W JP2010056455 W JP 2010056455W WO 2010134398 A1 WO2010134398 A1 WO 2010134398A1
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- Prior art keywords
- group
- formula
- alkyl group
- hydroxy
- ink composition
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 115
- 239000000049 pigment Substances 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 title claims description 28
- -1 sulfoanilino group Chemical group 0.000 claims abstract description 189
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 75
- 150000003839 salts Chemical class 0.000 claims abstract description 54
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 22
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 60
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 50
- 150000001875 compounds Chemical class 0.000 claims description 42
- 125000004400 (C1-C12) alkyl group Chemical group 0.000 claims description 35
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 claims description 28
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 claims description 19
- 238000001308 synthesis method Methods 0.000 claims description 19
- 150000001412 amines Chemical class 0.000 claims description 14
- BEHLMOQXOSLGHN-UHFFFAOYSA-N benzenamine sulfate Chemical class OS(=O)(=O)NC1=CC=CC=C1 BEHLMOQXOSLGHN-UHFFFAOYSA-N 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 11
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 10
- 150000005002 naphthylamines Chemical class 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 10
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 8
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 8
- XFSXWFOXECTCPD-UHFFFAOYSA-N naphthalen-1-ylsulfamic acid Chemical group C1=CC=C2C(NS(=O)(=O)O)=CC=CC2=C1 XFSXWFOXECTCPD-UHFFFAOYSA-N 0.000 claims description 7
- 125000006700 (C1-C6) alkylthio group Chemical group 0.000 claims description 5
- 125000003282 alkyl amino group Chemical group 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000005843 halogen group Chemical group 0.000 claims description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 5
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 4
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 4
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 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
- 150000003457 sulfones Chemical class 0.000 claims description 4
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 83
- 229910001868 water Inorganic materials 0.000 abstract description 75
- 239000000976 ink Substances 0.000 description 164
- 239000000975 dye Substances 0.000 description 146
- 239000000243 solution Substances 0.000 description 82
- 239000007787 solid Substances 0.000 description 77
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 75
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 55
- 238000001914 filtration Methods 0.000 description 46
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 35
- 238000006243 chemical reaction Methods 0.000 description 35
- 238000004128 high performance liquid chromatography Methods 0.000 description 33
- 238000006467 substitution reaction Methods 0.000 description 31
- 235000019270 ammonium chloride Nutrition 0.000 description 27
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 22
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 16
- 239000007789 gas Substances 0.000 description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000002253 acid Substances 0.000 description 15
- 239000005457 ice water Substances 0.000 description 15
- 150000003863 ammonium salts Chemical class 0.000 description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000004040 coloring Methods 0.000 description 11
- 238000001454 recorded image Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 125000004122 cyclic group Chemical group 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000003860 storage Methods 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- 150000001448 anilines Chemical class 0.000 description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 7
- 159000000000 sodium salts Chemical class 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical class 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 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000011734 sodium Chemical class 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical class [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical class [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 4
- 239000003429 antifungal agent Substances 0.000 description 4
- 229940121375 antifungal agent Drugs 0.000 description 4
- 239000004599 antimicrobial Substances 0.000 description 4
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000011591 potassium Chemical class 0.000 description 4
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 4
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XBNVWXKPFORCRI-UHFFFAOYSA-N 2h-naphtho[2,3-f]quinolin-1-one Chemical compound C1=CC=CC2=CC3=C4C(=O)CC=NC4=CC=C3C=C21 XBNVWXKPFORCRI-UHFFFAOYSA-N 0.000 description 3
- APRRQJCCBSJQOQ-UHFFFAOYSA-N 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid Chemical compound OS(=O)(=O)C1=CC(O)=C2C(N)=CC(S(O)(=O)=O)=CC2=C1 APRRQJCCBSJQOQ-UHFFFAOYSA-N 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 239000012295 chemical reaction liquid Substances 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000006482 condensation reaction Methods 0.000 description 3
- 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 3
- 230000000694 effects Effects 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000005562 fading Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000006277 sulfonation reaction Methods 0.000 description 3
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 2
- GUUULVAMQJLDSY-UHFFFAOYSA-N 4,5-dihydro-1,2-thiazole Chemical compound C1CC=NS1 GUUULVAMQJLDSY-UHFFFAOYSA-N 0.000 description 2
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- XAIIWJHAJCLAOO-UHFFFAOYSA-N CN(c(c(C(c1c2cccc1)=C1C(c3ccccc3)=O)c3C2=O)ccc3Nc2ccccc2)C1=O Chemical compound CN(c(c(C(c1c2cccc1)=C1C(c3ccccc3)=O)c3C2=O)ccc3Nc2ccccc2)C1=O XAIIWJHAJCLAOO-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000008051 alkyl sulfates Chemical class 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
- 239000002280 amphoteric surfactant Substances 0.000 description 2
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- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000000987 azo dye Substances 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 229920006317 cationic polymer Polymers 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
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- 239000003153 chemical reaction reagent Substances 0.000 description 2
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 2
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- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
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- 238000001471 micro-filtration Methods 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000003136 n-heptyl 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])* 0.000 description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 150000002892 organic cations Chemical class 0.000 description 2
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- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 1
- 125000005184 naphthylamino group Chemical group C1(=CC=CC2=CC=CC=C12)N* 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- PDDANVVLWYOEPS-UHFFFAOYSA-N nitrous acid;n-propan-2-ylpropan-2-amine Chemical compound [O-]N=O.CC(C)[NH2+]C(C)C PDDANVVLWYOEPS-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- VMPITZXILSNTON-UHFFFAOYSA-N o-anisidine Chemical compound COC1=CC=CC=C1N VMPITZXILSNTON-UHFFFAOYSA-N 0.000 description 1
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000002896 organic halogen compounds Chemical class 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- BHAAPTBBJKJZER-UHFFFAOYSA-N p-anisidine Chemical compound COC1=CC=C(N)C=C1 BHAAPTBBJKJZER-UHFFFAOYSA-N 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229960004321 pentaerithrityl tetranitrate Drugs 0.000 description 1
- LQPLDXQVILYOOL-UHFFFAOYSA-I pentasodium;2-[bis[2-[bis(carboxylatomethyl)amino]ethyl]amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC(=O)[O-])CCN(CC([O-])=O)CC([O-])=O LQPLDXQVILYOOL-UHFFFAOYSA-I 0.000 description 1
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000001007 phthalocyanine dye Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- LROWVYNUWKVTCU-STWYSWDKSA-M sodium sorbate Chemical compound [Na+].C\C=C\C=C\C([O-])=O LROWVYNUWKVTCU-STWYSWDKSA-M 0.000 description 1
- 235000019250 sodium sorbate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- XNRNJIIJLOFJEK-UHFFFAOYSA-N sodium;1-oxidopyridine-2-thione Chemical compound [Na+].[O-]N1C=CC=CC1=S XNRNJIIJLOFJEK-UHFFFAOYSA-N 0.000 description 1
- HCJLVWUMMKIQIM-UHFFFAOYSA-M sodium;2,3,4,5,6-pentachlorophenolate Chemical compound [Na+].[O-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl HCJLVWUMMKIQIM-UHFFFAOYSA-M 0.000 description 1
- 229950006451 sorbitan laurate Drugs 0.000 description 1
- 235000011067 sorbitan monolaureate Nutrition 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 229960005078 sorbitan sesquioleate Drugs 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000001180 sulfating effect Effects 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229940104261 taurate Drugs 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- 229950006389 thiodiglycol Drugs 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical class OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 125000002948 undecyl 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])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
- C09B5/14—Benz-azabenzanthrones (anthrapyridones)
-
- 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
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/328—Inkjet printing inks characterised by colouring agents characterised by dyes
Definitions
- the present invention relates to a magenta dye represented by a specific formula or a salt thereof, an ink composition containing the same, a recording method using the ink composition, and a colored body colored with the ink composition.
- various ink ejection methods have been developed for a recording method using an ink jet printer, which is one of the representative methods, that is, ink jet recording. All of these generate ink droplets and attach them to various recording materials such as paper, film, fabric, etc. for recording.
- This recording method is quiet because there is no sound generation because the printer head and the recording material are not in direct contact, and since it has features such as miniaturization, high speed, and easy colorization, it has rapidly increased in recent years. It is spreading and is expected to grow significantly in the future.
- inks such as fountain pens and felt pens and inks for ink jet recording
- inks in which a water-soluble coloring matter (dye) is dissolved in an aqueous medium are used.
- a water-soluble organic solvent is generally added to prevent clogging of the ink at the pen tip or the ink discharge nozzle.
- These inks provide a recorded image with sufficient density, do not cause clogging of the pen tip and nozzles, have good drying properties on the recording material, have little bleeding, and have excellent storage stability. Is required.
- the formed recorded image is required to have various fastness properties such as water resistance, moisture resistance, light resistance and gas resistance.
- Y yellow
- M magenta
- C cyan
- K black
- R red
- G green
- B blue
- each of Y, M, and C can be set as a standard. It is desired to have a hue close to each other and to be clear.
- Water resistance is greatly improved by coating the surface of the recording material with inorganic fine particles capable of adsorbing pigments in inks such as porous silica, cationic polymers, alumina sol, and special ceramics together with PVA resin. Has been.
- Humidity resistance refers to resistance to a phenomenon in which a dye in a recording material oozes when the colored recording material is stored in a high humidity atmosphere.
- the image quality is remarkably deteriorated particularly in a high-definition image having a photographic tone. Therefore, it is important to reduce the blurring as much as possible.
- Typical magenta dyes used in water-based inkjet recording inks are xanthene dyes and azo dyes using H acid (1-amino-8-hydroxynaphthalene-3,6-disulfonic acid). is there.
- xanthene dyes are very excellent in hue and sharpness but very inferior in light resistance.
- some azo dyes using H acid are good in terms of hue and water resistance, but are inferior in light resistance, gas resistance, and sharpness. For the latter, dyes with excellent sharpness and light resistance have been developed, but the light resistance is still inferior to other hues such as cyan and yellow dyes typified by copper phthalocyanine dyes. It is.
- magenta dyes having excellent sharpness and light resistance examples include anthrapyridone dyes (see, for example, Patent Documents 1 to 12), such as hue, sharpness, light resistance, water resistance, gas resistance, and solution stability. I don't get anything that satisfies everything.
- Patent Document 13 discloses a colored fine particle dispersion for inkjet which is excellent in light resistance of color images and excellent in color reproducibility.
- Patent Document 14 discloses an anthrapyridone dye used in a bulk dyeing method.
- An object of the present invention is to provide a magenta dye having a hue suitable for ink jet recording and having excellent ozone gas resistance of a recorded matter, and an ink composition containing the same.
- the inventors of the present invention have solved at least one kind of dye represented by the following formula (1) or a salt thereof, and an ink composition containing the dye as a dye.
- the present invention has been completed.
- X a to X c are each independently an unsubstituted sulfoanilino group; a sulfoanilino group substituted with a group selected from the group consisting of a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted sulfonaphthylamino A group; a sulfonaphthylamino group substituted with a C1-C4 alkyl group or a hydroxy group; or a hydroxy group; At least one of X a to X c is a group other than a hydroxy group; R represents a hydrogen atom, a carboxy group, a C1-C8 alkoxy group, a C1-C6 alkylthio group, a carb
- Inkjet recording in which recording is performed by using the ink composition according to any one of 1) to 5) above as an ink, ejecting ink droplets of the ink in accordance with a recording signal, and attaching the ink droplet to a recording material.
- a magenta dye or a salt thereof comprising at least one dye represented by the following formula (1):
- X a to X c are each independently an unsubstituted sulfoanilino group; a sulfoanilino group substituted with a group selected from the group consisting of a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted sulfonaphthylamino A group; a sulfonaphthylamino group substituted with a C1-C4 alkyl group or a hydroxy group; or a hydroxy group; At least one of X a to X c is a group other than a hydroxy group; R represents a hydrogen atom, a carboxy group, a C1-C8 alkoxy group, a C1-C6 alkylthio group, a carbamoyl
- X d represents an unsubstituted sulfoanilino group; a sulfoanilino group substituted with a group selected from the group consisting of a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted sulfonaphthylamino group; or C1-C4 A sulfonaphthylamino group substituted with an alkyl group or a hydroxy group; h and j are both average values, h is 0.8 or more and 3.0 or less, j is 0 or more and 2.2 or less, and the sum of h and j is 3.0. ]
- the dye represented by the formula (1) is a dye obtained by any one of the following synthesis methods a) and b) Synthesis method a) A compound represented by the following formula (5) and an unsubstituted sulfoaniline; a sulfoaniline substituted with a group selected from the group consisting of a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted sulfone A method of reacting with at least one amine selected from the group consisting of: naphthylamine; and sulfonaphthylamine substituted with a C1-C4 alkyl group or a hydroxy group; Synthesis method b) A compound represented by the following formula (5) and an unsubstituted aniline; an aniline substituted with a group selected from the group consisting of a C1-C12 alkyl
- the magenta dye of the present invention comprising the dye represented by the above formula (1) or a salt thereof has a feature of good filterability with respect to a membrane filter in the process of producing an ink composition. Further, by using the ink composition of the present invention containing the coloring matter represented by the above formula (1) or a salt thereof as an ink, particularly an ink for ink jet recording, the hue of a photographic color image can be obtained on a recording material. Can be reproduced faithfully. In addition, even when recording on a recording material coated with inorganic fine particles such as inkjet special paper (film) for photographic image quality, the ozone gas resistance is good, and the long-term storage stability of such recorded images Are better. Therefore, the magenta dye of the present invention comprising the dye represented by the above formula (1) or a salt thereof, and the ink composition of the present invention containing the dye represented by the above formula (1) or a salt thereof are inkjet recording. Very useful for applications.
- magenta dye or a salt thereof of the present invention is a magenta dye or a salt thereof comprising at least one kind of dye represented by the above formula (1).
- magenta dye of the present invention or a salt thereof and the “magenta dye of the present invention” will be simply described below.
- the ink composition of the present invention is suitable as a magenta ink, particularly a magenta ink used for ink jet recording, and contains at least one kind of the dye represented by the above formula (1) or a salt thereof.
- the dye represented by formula (1) or a salt thereof and the “pigment represented by the formula (1)” are simply described below.
- the dye represented by formula (1) may be used as a single dye or as a mixture of a plurality of dyes. From the viewpoint of ease of dye synthesis, low cost, solubility of the synthesized dye, etc., the dye represented by the formula (1) is contained in the ink composition of the present invention as a dye mixture comprising a plurality of dyes. Is preferred.
- acidic functional groups such as sulfo groups and carboxy groups are represented in the form of free acids.
- the unsubstituted sulfoanilino group in X a to X c includes those in which one to three sulfo groups are substituted, preferably one or two, more preferably one.
- Specific examples include one substituted with a sulfo group such as 2-sulfoanilino, 3-sulfoanilino, and 4-sulfoanilino; two substituted sulfo groups such as 3,5-disulfoanilino; 2,4,6-tri Examples include those in which three sulfo groups such as sulfoanilino are substituted.
- 2-sulfoanilino, 3-sulfoanilino, and 4-sulfoanilino are preferable, and 3-sulfoanilino and 4-sulfoanilino are more preferable.
- X a to X c as the C1-C12 alkyl group in sulfoanilino group substituted with C1-C12 alkyl group, a straight-chain, branched-chain, and it includes those cyclic, but is preferably linear.
- the range of the number of carbon atoms in the alkyl group is usually C1-C12 when linear or branched, preferably C1-C8, more preferably C1-C6, more preferably C1-C4; C3-C6 is preferred.
- the number of substitution of the alkyl group is usually 1 or 2, preferably 1.
- C1-C12 alkyl group examples include methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n- Straight chain such as undecyl, n-dodecyl; branched chain such as isopropyl, isobutyl, sec-butyl, t-butyl, isoamyl, isohexyl, isoheptyl, isooctyl, isononyl, isodecyl, isoundecyl, isododecyl; cyclopropyl, cyclobutyl , Cyclic groups such as cyclopentyl, cyclohexyl, cycloheptyl; and the like. Of these, methyl is particularly preferred.
- sulfoanilino group substituted with a C1-C12 alkyl group in X a to X c include 2-methyl-4-sulfoanilino, 2-methyl-5-sulfoanilino, 3-methyl-4-sulfoanilino, 4- Methyl-2-sulfoanilino, 4-methyl-3-sulfoanilino, 3-ethyl-4-sulfoanilino, 4-ethyl-3-sulfoanilino, 4-butyl-3-sulfoanilino, 4-hexyl-3-sulfoanilino, 4-n- One or two straight chain such as octyl-3-sulfoanilino, 3-dodecyl-4-sulfoanilino, 4-dodecyl-3-sulfoanilino, 3,5-dimethyl-4-sulfoanilino, 3,5-diethyl
- 2-methyl-4-sulfoanilino 2-methyl-5-sulfoanilino, 3-methyl-4-sulfoanilino, 4-methyl-2-sulfoanilino, and 4-methyl-3-sulfoanilino are preferred, More preferred are methyl-2-sulfoanilino and 4-methyl-3-sulfoanilino.
- Examples of the C1-C6 alkoxy group in the sulfoanilino group substituted with the C1-C6 alkoxy group in X a to X c include linear or branched ones, and linear ones are preferred.
- the range of the number of carbon atoms in the alkoxy group is usually C1 to C6, preferably C1 to C4.
- the number of substitution of the alkoxy group is usually 1 or 2, preferably 1.
- C1-C6 alkoxy group examples include linear ones such as methoxy, ethoxy, n-propoxy, n-butoxy, n-pentoxy, n-hexyloxy; isopropoxy, isobutoxy, sec-butoxy, t-butoxy Branched chain such as isoamyloxy and isohexyloxy; and the like. Of these, methoxy is particularly preferred.
- sulfoanilino group substituted with a C1-C6 alkoxy group in X a to X c include 2-methoxy-5-sulfoanilino, 2-methoxy-4-sulfoanilino, 3-methoxy-4-sulfoanilino, 4- Methoxy-2-sulfoanilino, 5-methoxy-2-sulfoanilino, 4-methoxy-3-sulfoanilino, 3-ethoxy-4-sulfoanilino, 3-n-propoxy-4-sulfoanilino, 4-n-butoxy-3-sulfoanilino, 1 or 2 linear C1-C6 alkoxy such as 4- (n-hexyloxy) -3-sulfoanilino, 3,5-dimethoxy-4-sulfoanilino, 3,5-di-n-butoxy-4-sulfoanilino Substituted with groups
- 2-methoxy-5-sulfoanilino, 2-methoxy-4-sulfoanilino, 3-methoxy-4-sulfoanilino, 4-methoxy-2-sulfoanilino, 5-methoxy-2-sulfoanilino, and 4-methoxy- 3-sulfoanilino is preferred, and 2-methoxy-5-sulfoanilino and 2-methoxy-4-sulfoanilino are more preferred.
- Examples of the sulfoanilino group substituted with a hydroxy group in X a to X c usually include one or two, preferably one substituted with one hydroxy group. Specific examples thereof include 2-hydroxy-5-sulfoanilino and 3-hydroxy-4-sulfoanilino. Of these, the former is preferred.
- the unsubstituted sulfonaphthylamino group in X a to X c includes a 1- or 2-naphthylamino group usually having 1 to 3, preferably 1 or 2, and more preferably 1 sulfo group. It is done. Specific examples include 4-sulfo-1-naphthylamino, 5-sulfo-1-naphthylamino, 6-sulfo-1-naphthylamino, 7-sulfo-1-naphthylamino, 6-sulfo-2-naphthylamino and the like.
- X a to X c The C1-C4 alkyl group in the substituted sulfo naphthyl amino group by C1-C4 alkyl group, in the "X a to X c, sulfoanilino group substituted with C1-C12 alkyl group Among those described in “C1-C12 alkyl group in the above”, the same ones including preferable ones can be mentioned except that the range of carbon number is limited to C1-C4.
- X a to X c specific examples of the sulfo naphthyl amino group substituted with C1-C4 alkyl group, 2-methyl-1-naphthylamino and the like.
- Substituted sulfo naphthyl amino group with a hydroxy group usually one or two, preferably substituted with one hydroxy group include mono- or di-sulfo naphthyl amino group. Specific examples thereof include 5-hydroxy-7-sulfo-1-naphthylamino, 2-hydroxy-4-sulfo-1-naphthylamino, 8-hydroxy-6-sulfo-2-naphthylamino, 5-hydroxy-8.
- a (mono) sulfonaphthylamino group substituted by one hydroxy group such as sulfo-2-naphthylamino, 8-hydroxy-4-sulfo-1-naphthylamino; 8-hydroxy-4,6-disulfo-1
- a disulfonaphthylamino group substituted with one hydroxy group such as -naphthylamino, 8-hydroxy-2,4-disulfo-1-naphthylamino, and the like.
- 5-hydroxy-7-sulfo-1-naphthylamino and 8-hydroxy-2,4-disulfo-1-naphthylamino are preferred.
- X a to X c include, among the above, an unsubstituted sulfoanilino group; a sulfoanilino group substituted with a C1-C12 alkyl group; a sulfoanilino group substituted with a C1-C6 alkoxy group; a sulfonaphthylamino group; or a hydroxy group Is preferred.
- at least one of X a to X c is a group other than a hydroxy group.
- examples of the C1-C8 alkoxy group for R include straight-chain or branched-chain groups, with straight-chain groups being preferred.
- the range of carbon number is usually C1-C8, preferably C1-C6, more preferably C1-C4.
- Specific examples include straight chain such as methoxy, ethoxy, n-propoxy, n-butoxy, n-pentoxy, n-hexyloxy, n-heptyloxy, n-octyloxy; isopropoxy, isobutoxy, sec-butoxy, t- Branched chain such as butoxy; and the like.
- Examples of the C1-C6 alkylthio group in R include a straight chain or branched chain group, and a straight chain group is preferable.
- the range of carbon number is usually C1-C6, preferably C1-C4.
- Specific examples include straight chain such as methylthio, ethylthio, n-propylthio, n-butylthio, n-pentylthio, n-hexylthio; branched chain such as isopropylthio, isobutylthio, sec-butylthio, t-butylthio And the like.
- the C1-C8 alkyl group for R above among those listed in the "in X a to X c, C1-C12 alkyl group in sulfoanilino group substituted with C1-C12 alkyl group", the range of carbon number C1 Except for being limited to -C8, the same can be mentioned including preferred ones.
- the range of carbon number is usually C1-C8 when linear or branched, preferably C1-C6, more preferably C1-C4; C3-C8 when cyclic, preferably C3-C6.
- R in formula (1) is preferably a hydrogen atom, a C1-C8 alkoxy group, or a C1-C8 alkyl group, more preferably a hydrogen atom, a C1-C4 alkoxy group, or a C1-C4 alkyl group, More preferred is a hydrogen atom.
- examples of the C1-C8 alkyl group for R 1 include straight-chain, branched-chain, and cyclic groups, and straight-chain or cyclic groups are preferable.
- the range of carbon number in the alkyl group is usually C1-C8 when linear or branched, preferably C1-C6, more preferably C1-C4; usually C3-C8 when cyclic, preferably C3-C6. is there.
- C1-C8 alkyl group examples include linear ones such as methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl; isopropyl, isobutyl, a branched chain such as sec-butyl, t-butyl, isoamyl, isohexyl, isoheptyl, isooctyl; and a cyclic group such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl; Among these, methyl or cyclohexyl is preferable, and methyl is particularly preferable.
- hydroxy C1-C4 alkyl group for R 1 examples include hydroxymethyl, 2-hydroxyethyl, 3-hydroxypropyl, 4-hydroxybutyl and the like.
- Examples of the mono C1-C4 alkylamino C1-C4 alkyl group for R 1 include monomethylaminomethyl, 2- (monomethylamino) ethyl, 2- (monoethylamino) ethyl and the like.
- Examples of the di (C1-C4 alkyl) amino C1-C4 alkyl group for R 1 include dimethylaminomethyl, 2-dimethylaminoethyl, 2-diethylaminoethyl and the like.
- Examples of the cyano C1-C4 alkyl group for R 1 include cyanomethyl, 2-cyanoethyl, 3-cyanopropyl, 4-cyanobutyl and the like.
- R 1 is preferably a hydrogen atom or a C1-C8 alkyl group, more preferably a C1-C8 alkyl group.
- the C1-C8 alkyl group in R 3 and R 4 is the above “C1-C12 alkyl group in the sulfoanilino group substituted with a C1-C12 alkyl group in X a to X c ” ” .
- the same ones including preferable ones can be cited except that the range of carbon number is limited to C1-C8.
- the range of carbon number is usually C1-C8 when linear or branched, preferably C1-C6, more preferably C1-C4; C3-C8 when cyclic, preferably C3-C6.
- R 3 and R 4 are preferably both hydrogen atoms.
- substitution positions of the “—SO 2 X a ” group to the “—SO 2 X c ” group, R, R 1 , R 3 , and R 4 are not particularly limited, but the following formula (101)
- the following combinations of substitution positions are preferable in the position numbers shown in Combination (1):
- R is the 3′-position;
- R 3 And R 4 are one each at any two positions selected from the 7 ′, 9 ′, and 10 ′ positions.
- Combination (2) One “—SO 2 X a ” group to “—SO 2 X c ” group at any position selected from the 4′-position, the 6′-position, and the 8′-position; R is the 1′-position; R 3 And R 4 are one each at any two positions selected from the 7 ′, 9 ′, and 10 ′ positions.
- Combination (3) One “—SO 2 X a ” group to “—SO 2 X c ” group at the 2 ′ position and one at any two positions selected from the 6 ′ position, the 8 ′ position, and the 10 ′ position A combination wherein R is in the 3 ′ position; R 3 and R 4 are each in the 7 ′ and 9 ′ positions;
- substitution positions of R, R 3 , and R 4 correspond to the positions shown in the above formula (101).
- the substitution positions of the “—SO 2 X a ” group to the “—SO 2 X c ” group are not particularly described, but depending on the substitution positions of R 3 and R 4 , combinations of the above substitution positions (1) to ( Substitution corresponding to one of 4).
- a preferable dye represented by the above formula (1) is a dye represented by the above formula (2), and a more preferable one is a dye represented by the above formula (3).
- X a to X c , R, and R 1 used as appropriate represent the same meaning as in the above formula (1), including preferred ones.
- R 3 and R 4 in formula (1) are read as hydrogen atoms
- the combinations (1) to (4) of substitution positions in the above formula (1) may be the same including preferable ones.
- the “—SO 2 X a ” group to the “—SO 2 X c ” group in the formula (3) are arbitrary selected from the 2′-position, the 6′-position, and the 8′-position in the formula (101). It is preferred to substitute one at a position.
- Particularly preferable dyes represented by the above formulas (1) to (3) are the dyes represented by the above formula (4).
- the dye represented by the formula (4) among the dyes represented by the above formulas (1) to (3), at least one of X a to X c is a group other than a hydroxy group, and the hydroxy A sulfoanilino group substituted with a group selected from the group consisting of an unsubstituted sulfoanilino group; a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted sulfonaphthylamino group; and A sulfonaphthylamino group substituted with a C1-C4 alkyl group or a hydroxy group; a mixture of dyes that is a single group selected from the group consisting of: As an example of the dye represented by the formula (4), all of X a to X
- an unsubstituted sulfoanilino group in Xd a sulfoanilino group substituted with a group selected from the group consisting of a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted sulfonaphthyl group amino groups; C1-C4 alkyl group or a sulfo naphthyl amino group substituted with a hydroxy group; represents the same meaning, including the group that corresponds in X a to X c in formula (1), the preferred ones like .
- h and j are average values representing the number of substitutions of the “—SO 2 X d ” group and the “—SO 3 H” group (sulfo group), respectively, and the sum of h and j is 3 .0.
- h is usually 0.8 or more and 3.0 or less, preferably 1.0 or more and 3.0 or less.
- j is usually 0 or more and 2.2 or less, preferably 0 or more and 2.0 or less.
- the dye represented by the formula (4) is substantially a mixture of dyes in which a total of three “—SO 2 X d ” groups and “—SO 3 H” groups are substituted with a specific anthrapyridone structure. is there.
- the values of h and j in the equation (4) can be calculated by performing HPLC analysis of the dye mixture and measuring the area ratio in HPLC of each single dye constituting the dye mixture.
- h in the dye mixture (A) having the configuration shown in Table 2 below will be described below.
- the “HPLC area ratio” is a value obtained by converting the total of the dyes represented by the target formula (4) to 100%.
- the area ratio of HPLC uses up to one digit after the decimal point of the actual measurement value, and for the calculated h, the value obtained by rounding the second digit after the decimal point to one digit after the decimal point is described. .
- the number of substitution of the “—SO 2 X d ” group in the above HPLC analysis can be easily determined from the mass, for example, by separating the peak of each single dye detected by HPLC and performing instrumental analysis such as mass spectrometry. it can.
- mass spectrometry can be performed simultaneously with LC measurement, and the mass can be determined from the mass.
- the substitution position of the “—SO 2 X d ” group and the “—SO 3 H” group in the above formula (4) is an arbitrary position selected from the 2′-position, 6′-position and 8′-position in the above-mentioned formula (101) It is preferable to substitute one by one at the positions.
- the dye represented by the formula (4) is a mixture of isomeric dyes having different substitution ratios and substitution positions of the “—SO 2 X d ” group and the “—SO 3 H” group.
- examples of the substitution ratio include three for the former and 0 for the latter, two for the former and one for the latter; one for the former and two for the latter.
- substitution positions when the former is two and the latter is one, the former is in positions 2 'and 6', the latter is in position 8 '; the former is in positions 2' and 8 ', and the latter is 6' Examples include the former: the 6′-position and the 8′-position and the latter the 2′-position;
- X a to X c , R, R 1 , R 3 , R 4 , X d , h, and j that are appropriately used in the dyes represented by the above formulas (1) to (4)
- a combined dye is more preferable, and a more preferable combination of dyes is more preferable. The same applies to combinations of preferable and more preferable ones.
- the dye of the above formula (1) is produced, for example, by the following method.
- X a to X c , R 1 , R 3 , R 4 , and R which are appropriately used in the following formulas (6) and (7), all have the same meaning as in the above formula (1).
- a catalyst In the presence of a base such as sodium carbonate, potassium carbonate, sodium acetate or potassium acetate, the reaction is carried out in a solvent such as orthodichlorobenzene, monochlorobenzene, nitrobenzene or xylene at 100 to 200 ° C. for 3 to 30 hours. After completion of the reaction, the mixture was cooled and the precipitated solid obtained by diluting with C1-C4 alcohol such as methanol, ethanol, propanol, etc. was separated by filtration, then washed with the above C1-C4 alcohol as necessary, and further washed with water or warm water, By drying, a compound represented by the following formula (7) is obtained.
- a base such as sodium carbonate, potassium carbonate, sodium acetate or potassium acetate
- the obtained compound represented by the above formula (7) is chlorosulfonylated in chlorosulfonic acid at 40 to 120 ° C., then thionyl chloride is added at 70 to 80 ° C., whereby the compound represented by the above formula (5) is obtained. Get.
- Q represents a halogen atom, preferably a chlorine atom, a bromine atom, or an iodine atom, more preferably a chlorine atom.
- the substitution position of the “—SO 2 Q” group in the formula (5) is not particularly limited, but the three “—SO 2 Q” groups are represented by the “—SO 2 X a ” group to the “—” in the formula (1).
- the substitution positions thereof are “—SO 2 X a ” groups to “—SO 2 ” in the combinations (1) to (4) of the substitution positions in the above formula (1).
- the “X c ” group is replaced with the “—SO 2 Q” group.
- the dye represented by the above formula (1) can be obtained by performing a condensation reaction with stirring at room temperature or cooling as necessary.
- This synthesis method of the dye represented by the formula (1) is referred to as synthesis method a).
- the above amines correspond to X a to X c in the formula (1), and are represented by “H—X a ”, “H—X b ”, and “H—X c ” as general formulas, respectively. Therefore, the amine is preferably unsubstituted sulfoaniline; sulfoaniline substituted with a C1-C12 alkyl group; sulfoaniline substituted with a C1-C6 alkoxy group; sulfonaphthylamine.
- the dye represented by the above formula (1) can also be synthesized by the following method. That is, a compound represented by the above formula (5) and an unsubstituted aniline; an aniline substituted with a group selected from the group consisting of a C1-C12 alkyl group, a C1-C6 alkoxy group, and a hydroxy group; an unsubstituted naphthylamine A naphthylamine substituted with a group selected from the group consisting of a C1-C4 alkyl group and a hydroxy group; and at least one amine selected from the group consisting of a base such as sodium hydroxide, preferably in water
- the dye represented by the above formula (1) can also be adjusted by adjusting the pH using, followed by condensation reaction under stirring while cooling at room temperature or as necessary, and then further sulfolating the resulting compound.
- This synthesis method of the dye represented by the formula (1) is referred to as synthesis method b).
- Examples of the sulfonation method in the synthesis method b) include a method of sulfonation in fuming sulfuric acid at 0 to 40 ° C. Depending on the reaction conditions for the sulfonation, a part of the sulfamoyl group obtained by the condensation reaction of the compound represented by the formula (5) and the specific amine is hydrolyzed and converted to sulfonic acid. May be.
- Examples of the synthesis method a) include (Step 3) and Examples 2 to 6 of Example 1 in the Examples described below. Moreover, as an example of the synthesis method b), each (step 2) in Example 7 and Example 8 is also mentioned.
- the ink composition of the present invention includes one that does not substantially contain water, but is preferably one that contains water, that is, a water-based ink composition. Accordingly, in consideration of the storage stability as an aqueous ink composition and the fastness of a recorded image, the ratio of groups other than hydroxy groups in X a to X c is set and the solubility in water is improved. Thus, it is preferable to use one or more dyes of the above formula (1), preferably 1 or more and 8 or less, more preferably 3 or more and 7 or less dye mixtures.
- the dyes represented by the above formulas (1) to (4) exist also in the form of a free acid or a salt thereof.
- the salt of the compound represented by the formula (1) include salts with inorganic or organic cations.
- Specific examples of the inorganic cation salt include ammonium salts; alkali metal salts such as salts of lithium, sodium, potassium, and the like.
- the quaternary ammonium salt represented, for example by following formula (8) is mentioned, It is not limited to these.
- Z 1 to Z 4 each independently represent a hydrogen atom, a C1-C4 alkyl group, a hydroxy C1-C4 alkyl group, or a hydroxy C1-C4 alkoxy C1-C4 alkyl group, and Z 1 to Z At least one of 4 is a group other than a hydrogen atom.
- examples of the C1-C4 alkyl group in Z 1 to Z 4 include methyl, ethyl and the like.
- examples of hydroxy C1-C4 alkyl groups include hydroxymethyl, hydroxyethyl, 3-hydroxypropyl, 2-hydroxypropyl, 4-hydroxybutyl, 3-hydroxybutyl, 2-hydroxybutyl and the like.
- examples of hydroxy C1-C4 alkoxy C1-C4 alkyl groups include hydroxyethoxymethyl, 2-hydroxyethoxyethyl, 3- (hydroxyethoxy) propyl, 3- (hydroxyethoxy) butyl, 2- (hydroxyethoxy) Examples include butyl.
- salts are sodium, potassium, lithium, monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine salts, ammonium salts, and the like. Of these, lithium, sodium, potassium, and ammonium salts are particularly preferred.
- the salts of the dyes represented by the above formulas (1) to (4) can be easily obtained by the following methods.
- sodium salt can be obtained by adding sodium chloride to a solution such as a reaction solution after completion of the final step in the synthesis reaction of the compound; a wet cake containing the compound or a dried product thereof; And a method of filtering the precipitated solid. Further, after dissolving the obtained sodium salt solid in water, an acid such as hydrochloric acid is added to adjust the pH of the solution as appropriate, and the precipitated solid is filtered to obtain the free acid of the compound; It is also possible to obtain a mixture of free acid and sodium salt, some of which are sodium salts.
- the free acid solid of the compound is stirred with water, and potassium hydroxide, lithium hydroxide, aqueous ammonia, a quaternary ammonium salt hydroxide represented by the formula (8), etc. are added to this liquid. If it is made alkaline, the corresponding potassium salt, lithium salt, ammonium salt, or quaternary ammonium salt can be obtained.
- a plurality of them are added, for example, a mixed salt of lithium and sodium, and further lithium, sodium, etc. It is also possible to obtain a mixed salt of potassium, ammonium and the like.
- the total content of the pigments contained in the ink composition of the present invention is usually 0.5 to 20% by mass, preferably 1 to 10% by mass, and more preferably 1.% by mass relative to the total mass of the ink composition. 5 to 6% by mass, more preferably 3 to 6% by mass.
- the ink composition of the present invention further contains other dyes, for example, known dyes, within a range that does not hinder the effects obtained by the present invention. Also good.
- the coloring matter contained in the ink composition of the present invention it is preferable that all of the coloring matter is substantially the coloring matter represented by the above formula (1), and the coloring matter represented by the formula (1) is preferable. More preferably, it is a dye mixture.
- the coloring matter represented by the above formula (1) contained in the ink composition of the present invention can be isolated as a solid free acid by adding a mineral acid such as hydrochloric acid after completion of the synthesis reaction.
- a mineral acid such as hydrochloric acid
- inorganic salts contained as impurities for example, metal cation chlorides such as sodium chloride, sulfate cations such as sodium sulfate
- impurities for example, metal cation chlorides such as sodium chloride, sulfate cations such as sodium sulfate
- ammonium chloride is added to precipitate the target ammonium salt, which is then dissolved in water to form a solution, and C1-C4 such as isopropanol.
- Inorganic impurities can also be removed by a method such as adding alcohol to precipitate the target product again. If necessary, such operations can be repeated to improve the purity of the target product and to reduce the content of inorganic impurities.
- the content of inorganic impurities in the total mass of the dye contained in the ink composition of the present invention is based on the total mass of the dye.
- the lower limit is preferably 0% by mass, that is, the lower limit of detection in the analytical instrument.
- a dried pigment product or wet cake is suspended and purified in a C1-C4 alcohol such as methanol or isopropanol or, if necessary, in a mixed solvent of the alcohol and water.
- a C1-C4 alcohol such as methanol or isopropanol
- the ink composition of the present invention is suitable for the production of natural and synthetic fiber materials or blended products, various writing inks, and particularly ink jet recording inks.
- the reaction liquid after completion of the final step in the synthesis reaction of the dye represented by the above formula (1) can be directly used for the production of the ink composition of the present invention.
- the target dye can be isolated from the reaction solution by, for example, spray drying or crystallization, and dried as necessary, and then used for the production of the ink composition.
- the ink composition of the present invention is prepared using water as a medium, and may contain a water-soluble organic solvent and an ink preparation agent as necessary within a range that does not impair the effects of the present invention.
- the water-soluble organic solvent dissolves the dye, prevents the composition from drying (maintaining the wet state), adjusts the viscosity of the composition, promotes the penetration of the composition into the recording material, adjusts the surface tension of the composition, and the composition. It is used for the purpose of defoaming the product and is preferably contained in the ink composition of the present invention.
- the ink preparation agent examples include antiseptic / antifungal agents, pH adjusters, chelating reagents, rust preventive agents, ultraviolet absorbers, viscosity adjusters, dye dissolving agents, antifading agents, emulsion stabilizers, surface tension adjusters, anti-foaming agents.
- Known additives such as foaming agents may be mentioned.
- the content of the water-soluble organic solvent is usually 0 to 60% by mass, preferably 10 to 50% by mass, based on the total mass of the ink composition, and the ink preparation agent is similarly 0 to 20% by mass, preferably 0. ⁇ 15% by weight is used. The remainder other than the above is water.
- water-soluble organic solvent examples include C1-C4 alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, sec-butanol and tert-butanol; N, N-dimethylformamide, N, Amides such as N-dimethylacetamide; 2-pyrrolidone, N-methyl-2-pyrrolidone, hydroxyethyl-2-pyrrolidone, 1,3-dimethylimidazolidin-2-one, 1,3-dimethylhexahydropyrimido Heterocyclic ketones such as 2-one; ketones or ketoalcohols such as acetone, methyl ethyl ketone, 2-methyl-2-hydroxypentan-4-one; cyclic ethers such as tetrahydrofuran, dioxane; ethylene glycol, 1, 2- or 1 , 3-Propylene glycol, 1,2- Is mono-
- Oligo or polyalkylene glycol or thioglycol; polyol (triol) such as glycerin, hexane-1,2,6-triol; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol Monobutyl ether (butyl carbitol), triethylene glycol monomethyl ether, tri C1-C4 monoalkyl ethers of polyhydric alcohols such as Chi glycol monoethyl ether; .gamma.-butyrolactone, dimethyl sulfoxide and the like.
- polyol (triol) such as glycerin, hexane-1,2,6-triol
- ethylene glycol monomethyl ether ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol Monobutyl ether (
- water-soluble organic solvent Preferred as the above-mentioned water-soluble organic solvent are isopropanol, glycerin, mono, di, or triethylene glycol, dipropylene glycol, 2-pyrrolidone, N-methyl-2-pyrrolidone, and butyl carbitol, more preferably Isopropanol, glycerin, diethylene glycol, 2-pyrrolidone, N-methyl-2-pyrrolidone, and butyl carbitol.
- These water-soluble organic solvents are used alone or in combination.
- antiseptic / antifungal agents examples include organic sulfur, organic nitrogen sulfur, organic halogen, haloaryl sulfone, iodopropargyl, N-haloalkylthio, benzothiazole, nitrile, pyridine, 8- Oxyquinoline, isothiazoline, dithiol, pyridine oxide, nitropropane, organotin, phenol, quaternary ammonium salt, triazine, thiadiazine, anilide, adamantane, dithiocarbamate, brominated indanone And compounds such as benzyl bromacetate and inorganic salts.
- An example of the organic halogen compound is sodium pentachlorophenol.
- Examples of pyridine oxide compounds include sodium 2-pyridinethiol-1-oxide.
- Examples of the isothiazoline compounds include 1,2-benzisothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazoline-3-one, 5 -Chloro-2-methyl-4-isothiazolin-3-one magnesium chloride, 5-chloro-2-methyl-4-isothiazolin-3-one calcium chloride, 2-methyl-4-isothiazolin-3-one calcium chloride, etc.
- Other antiseptic / antifungal agents include sodium sorbate, sodium acetate, sodium benzoate and the like.
- antiseptic / antifungal agents include, for example, trade names Proxel RTM GXL (S), Proxel RTM XL-2 (S) manufactured by Arch Chemicals Japan Co., Ltd.
- RTM means a registered trademark.
- any substance can be used as long as it can control the pH of the ink in the range of 6.0 to 11.0 for the purpose of improving the storage stability of the ink.
- alkanolamines such as diethanolamine and triethanolamine
- hydroxides of alkali metals such as lithium hydroxide, sodium hydroxide and potassium hydroxide
- ammonium hydroxides carbonates of alkali metals such as lithium carbonate, sodium carbonate and potassium carbonate Salt; and the like.
- chelating reagent examples include sodium ethylenediaminetetraacetate, sodium nitrilotriacetate, sodium hydroxyethylethylenediaminetriacetate, sodium diethylenetriaminepentaacetate, sodium uracil diacetate and the like.
- rust preventive examples include acid sulfite, sodium thiosulfate, ammonium thioglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate, dicyclohexylammonium nitrite and the like.
- the ultraviolet absorber examples include benzophenone compounds, benzotriazole compounds, cinnamic acid compounds, triazine compounds, and stilbene compounds. Further, a compound that absorbs ultraviolet rays typified by a benzoxazole-based compound and emits fluorescence, a so-called fluorescent brightener can also be used.
- examples of the viscosity modifier include water-soluble polymer compounds in addition to water-soluble organic solvents, and examples thereof include polyvinyl alcohol, cellulose derivatives, polyamines, and polyimines.
- dye solubilizer examples include urea, ⁇ -caprolactam, ethylene carbonate, and the like. Of these, urea is preferably used.
- the anti-fading agent is used for the purpose of improving image storage stability.
- various organic and metal complex antifading agents can be used.
- Organic anti-fading agents include hydroquinones, alkoxyphenols, dialkoxyphenols, phenols, anilines, amines, indanes, chromans, alkoxyanilines, heterocycles, etc. Nickel complexes and zinc complexes.
- Examples of the surface tension adjusting agent include surfactants, and examples include anionic surfactants, amphoteric surfactants, cationic surfactants, and nonionic surfactants.
- anionic surfactants include alkyl sulfocarboxylates, ⁇ -olefin sulfonates, polyoxyethylene alkyl ether acetates, N-acyl amino acids and salts thereof, N-acyl methyl taurate, alkyl sulfate polyoxyalkyl ethers Sulfate, alkyl sulfate polyoxyethylene alkyl ether phosphate, rosin acid soap, castor oil sulfate ester, lauryl alcohol sulfate ester, alkylphenol type phosphate ester, alkyl type phosphate ester, alkylaryl sulfonate, diethylsulfosuccinate Salt, diethyl hexyl sulphosuccinate, dioctyl sulphosuccinate and the like.
- Examples of the cationic surfactant include 2-vinylpyridine derivatives and poly-4-vinylpyridine derivatives.
- Amphoteric surfactants include lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, polyoctylpolyaminoethylglycine, imidazoline derivatives, etc. Is mentioned.
- Nonionic surfactants include ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene dodecylphenyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether; Ester systems such as polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate; 2,4,7,9-tetramethyl-5-decyne-4,7-diol, 3,6-dimethyl-4-octyne-3,6-diol, 3,5-dimethyl Acetylene glycol (alcohol) based such-1-hexyne-3-ol; Examples other, for example, manufactured by Nissin Chemical Industry Co., Ltd. trade
- antifoaming agent a highly oxidized oil-based, glycerin fatty acid ester-based, fluorine-based, or silicone-based compound is used as necessary.
- the surface tension of the ink containing the ink composition of the present invention is usually 25 to 70 mN / m, more preferably 25 to 60 mN / m.
- the viscosity of the ink is preferably 30 mPa ⁇ s or less, and more preferably adjusted to 20 mPa ⁇ s or less.
- the ink composition of the present invention there is no particular limitation on the order of dissolving each component such as an additive.
- the water used for the preparation of the ink composition is preferably a substance with few impurities such as ion exchange water or distilled water.
- fine filtration may be performed using a membrane filter or the like to remove impurities from the ink composition.
- the pore diameter of the filter for performing microfiltration is usually 1 ⁇ m to 0.1 ⁇ m, preferably 0.8 ⁇ m to 0.1 ⁇ m.
- inkjet printers two types of ink, high-density ink and low-density ink, are loaded in one printer for the purpose of supplying a high-definition image.
- an ink containing a high concentration of the compound of the present invention as a coloring matter and an ink containing a low concentration may be prepared and used as an ink set. Further, only one of them may contain the ink composition of the present invention.
- a known magenta dye may be used in combination as long as the effect obtained by the ink composition of the present invention is not impaired.
- the ink composition of the present invention may be used for toning of other colors, for example, black ink, or for the purpose of preparing red ink or blue (or violet) ink by mixing with yellow dye or cyan dye. it can.
- a container filled with the ink composition of the present invention is loaded into a predetermined position of an ink jet printer and used as ink, and ink droplets of the ink are ejected according to a recording signal to be covered.
- recording is performed by adhering to a recording material.
- the ink composition of the present invention can be used in combination with yellow, cyan, and if necessary, green, blue (or violet), red, black and the like.
- the ink of each color is injected into each container, and these containers are used in a predetermined position of the ink jet printer.
- Some inkjet printers use, for example, a piezo method using mechanical vibration; a bubble jet (registered trademark) method using bubbles generated by heating; and the like.
- the ink jet recording method of the present invention can be used by any method.
- Examples of the recording material in the ink jet recording method of the present invention include information transmission sheets such as paper and film, fibers and cloths (cellulose, nylon, wool, etc.), leather, base materials for color filters, and the like. Although it will not be limited to these if it is a substance, the sheet for information transmission is preferred.
- the information transmission sheet is not particularly limited, and not only plain paper but also a surface-treated one, specifically, a paper, synthetic paper, a substrate such as a film provided with an ink receiving layer, or the like may be used.
- the ink receiving layer is, for example, a method of impregnating or coating the base material with a cationic polymer; inorganic fine particles capable of absorbing pigments in ink such as porous silica, alumina sol, and special ceramics are polyvinyl alcohol and polyvinyl A method of coating the surface of the substrate together with a hydrophilic polymer such as pyrrolidone; Those provided with such an ink receiving layer are usually called ink jet exclusive paper, ink jet exclusive film, glossy paper, gloss film and the like.
- Plain paper means paper that is not particularly provided with an ink-receptive layer, and various papers are commercially available depending on the application.
- An example of commercially available plain paper includes: double-sided fine plain paper manufactured by Seiko Epson; color plain paper manufactured by Canon; Multipurpose Paper, All-in-one Printing Paper; manufactured by Hewlett Packard; is there.
- PPC paper and the like whose application is not limited to inkjet printing are also plain paper.
- the ink composition of the present invention is particularly excellent in the sharpness of images recorded on plain paper as described above, and plain paper is preferred among the information transmission sheets. However, since it is excellent in fastness against light, ozone, humidity, water, friction, etc., it can be used for plain paper and inkjet paper.
- the colored product of the present invention means a substance colored with the ink composition of the present invention.
- the material is not particularly limited as long as it is a substance to be colored, and examples thereof include the recording material described above.
- the coloring method is not particularly limited, and examples thereof include a dip dyeing method, a textile printing method, a printing method such as screen printing, an ink jet recording method, and the like. Among these, an ink jet recording method is preferable.
- the ink composition containing the coloring matter of the present invention has very good storage stability without solid precipitation, physical property change, hue change and the like after long-term storage.
- a printed matter using the ink composition of the present invention as an ink for ink jet recording has an ideal hue as a magenta hue without selecting a recording material (for example, paper, film, etc.), and a photographic color image Can be reproduced faithfully on paper.
- the ink composition of the present invention has high color developability and good sharpness, and is suitable for use in printing, copying, marking, writing, drafting, stamping, or various recordings (printing), particularly inkjet recording.
- the ink composition of the present invention when used for ink jet recording, a high-quality magenta-colored recording material having good resistance to oxidizing gases such as water, light, ozone gas, humidity, and friction is obtained.
- oxidizing gases such as water, light, ozone gas, humidity, and friction
- it has good ozone gas resistance when recorded on a recording material coated with a porous white inorganic material such as paper for exclusive use for photographic image quality and film, and also provides long-term storage stability for recorded images of photographic quality. Are better. For this reason, it is suitable for inkjet recording, which is one of the features that a recording material is not selected.
- the ink composition of the present invention when used for ink jet recording, solid deposition due to drying of the ink composition in the vicinity of the nozzle is very unlikely to occur, and the ejector (ink head) is not blocked.
- the coloring matter of the present invention and the ink composition of the present invention containing the same are extremely useful for various ink applications, particularly for inkjet recording ink applications.
- the compound represented by following formula (11) is a compound in which Q in the said Formula (5) is represented by a chlorine atom.
- Example 2 In 1440 parts of ice water, 396.0 parts of a wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes. The mixture was reacted for 4 hours under the condition of adjusting the pH to 9.0 with an aqueous sodium hydroxide solution of 10%. 35% hydrochloric acid was added to the resulting reaction solution to adjust the pH to 3.0, and 380.0 parts of sodium chloride was added. The precipitated solid was separated by filtration and washed with 300 parts of 22% sodium chloride water to obtain a wet cake.
- the obtained wet cake was added to water to prepare a solution while adjusting the pH of the solution to 4.0 with a 25% aqueous sodium hydroxide solution, and water was further added to this solution to adjust the total amount to 1300 parts.
- 255 parts of sodium chloride was added to the resulting solution, and the precipitated solid was separated by filtration and washed with 200 parts of a 22% aqueous sodium chloride solution to obtain a wet cake. This operation was repeated three times to obtain a wet cake.
- the obtained wet cake was added to water to prepare a solution while adjusting the pH of the solution to 4.0 with a 25% aqueous sodium hydroxide solution, and water was further added to the solution to adjust the total amount to 800 parts.
- Xd is 3-sulfoanilino
- a wet cake containing 54.6 parts of a sodium salt of the dye represented by the above formula (12) was obtained.
- the obtained wet cake was added to water to make an aqueous solution, and then purified by reverse osmosis membrane to obtain an ink composition of the present invention having a pigment content of 10% by mass.
- the total content of these inorganic impurities was 300 ppm or less.
- the content of the dye represented by the formula (12) in the total amount of the dye contained in the ink composition was 98.2% in terms of HPLC area ratio. [lambda] max: 519 nm.
- Example 3 In 120 parts of ice water, 33.0 parts of a wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes. The reaction was carried out for 5 hours under the condition of adjusting the pH to 9.0 with an 8% aqueous sodium hydroxide solution. The reaction solution was adjusted to pH 2.0 by adding 35% hydrochloric acid. 30.0 parts of ammonium chloride was added and the precipitated solid was separated by filtration and washed with 100 parts of a 22% aqueous ammonium chloride solution to obtain a wet cake.
- Example 4 6.1 parts of o-anisidine-5-sulfonic acid was added to 100 parts of water and stirred. To this solution, 33.0 parts of a wet cake obtained in the same manner as in (Step 2) of Example 1 was added in 120 parts of ice water, and a solution stirred for 10 minutes was added dropwise over 1 hour. Meanwhile, the reaction solution was kept at pH 6.5 to 7.0 with an aqueous solution of about 8% sodium hydroxide at 25 to 30 ° C. This reaction solution was further reacted for 3 hours while being maintained at 25 to 30 ° C. and pH 6.5 to 7.0.
- the obtained reaction solution was adjusted to pH 3.0 by adding 35% hydrochloric acid, 38.0 parts of ammonium chloride was added and the precipitated solid was separated by filtration, washed with 100 parts of 22% aqueous ammonium chloride solution, Obtained.
- the obtained wet cake was dissolved again in 40 parts of water, adjusted to pH 6.6 using 25% aqueous sodium hydroxide solution, 4.0 parts of ammonium chloride was added, and the precipitated solid was separated by filtration, and 24% chloride was obtained.
- the wet cake was obtained by washing with 100 parts of an aqueous ammonium solution.
- the obtained wet cake was dissolved in 20 parts of water, 400 parts of isopropanol was added, and the precipitated solid was separated by filtration.
- Example 5 In 120 parts of ice water, 33.0 parts of the wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes. Then, 14.0 parts of Brenna acid was added, and the temperature was about 25-30 ° C. The reaction was allowed to proceed for 2 hours under conditions adjusted to pH 8.0 with an 8% aqueous sodium hydroxide solution. The reaction solution was adjusted to pH 8.0 by adding 35% hydrochloric acid. 17.0 parts of ammonium chloride was added to the obtained liquid, and the precipitated solid was separated by filtration and washed with 100 parts of a 15% aqueous ammonium chloride solution to obtain a wet cake.
- the obtained wet cake was dissolved again in 200 parts of water, adjusted to pH 9.0 by adding 25% aqueous sodium hydroxide solution, 20.0 parts of ammonium chloride was added at 20 ° C., and the precipitated solid was separated by filtration. And got a wet cake.
- the wet cake obtained by repeating this operation three more times was suspended in 50 parts of water, and the precipitated solid was separated by filtration to obtain a wet cake.
- the obtained wet cake was dissolved in 50 parts of water, 400 parts of isopropanol was added, and the precipitated solid was separated by filtration and dried.
- H in the above formula (4) was 2.8, j was 0.2, X d
- Example 6 In 120 parts of ice water, 33.0 parts of the wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes. Then, 14.0 parts of 1,6-claveic acid was added, and 25 to The reaction was carried out for 3 hours at 30 ° C. under conditions adjusted to pH 8.0 with an approximately 8% aqueous sodium hydroxide solution. The obtained reaction solution was adjusted to pH 2.0 by adding 35% hydrochloric acid, and the precipitated unreacted 1,6-claveic acid was separated by filtration.
- a 25% aqueous sodium hydroxide solution was added to the obtained filtrate to adjust the pH to 3.0, 19.0 parts of ammonium chloride was added, and the precipitated solid was separated by filtration, washed with 100 parts of a 24% aqueous ammonium chloride solution, and wet. I got a cake.
- the obtained wet cake was dissolved in 100 parts of water, adjusted to pH 9.0 by adding 28% aqueous ammonia, 10.0 parts of ammonium chloride was added, and the precipitated solid was separated by filtration to obtain a wet cake. .
- a wet cake obtained by repeating this operation four times was suspended in 50 parts of water, and the precipitated solid was separated by filtration to obtain a wet cake.
- Example 7 In 120 parts of ice water, 33.0 parts of a wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes. The reaction was carried out for 17 hours under conditions adjusted to pH 9.0 with an 8% aqueous sodium hydroxide solution. 35% hydrochloric acid was added to the resulting reaction solution to adjust the pH to 6.0, 13.0 parts of ammonium chloride was added and the precipitated solid was separated by filtration, washed with 100 parts of a 24% aqueous ammonium chloride solution, Obtained.
- the obtained wet cake was dissolved in 100 parts of water, adjusted to pH 6.5 by adding 25% aqueous sodium hydroxide solution, 10.0 parts of ammonium chloride was added, the precipitated solid was separated by filtration, and the wet cake was Obtained.
- the obtained wet cake was dissolved in 100 parts of water, adjusted to pH 8.0 using 28% aqueous ammonia, 10.0 parts of ammonium chloride was added, and the precipitated solid was separated by filtration to obtain a wet cake. .
- a wet cake obtained by repeating this operation twice was suspended in 50 parts of water, and the precipitated solid was separated by filtration to obtain a wet cake.
- Example 8 (Process 1) In 120 parts of ice water, 33.0 parts of a wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes, then 6.5 parts of p-toluidine was added, The reaction was carried out for 3 hours under the condition of adjusting the pH to 9.0 with about 8% aqueous sodium hydroxide solution. The solid precipitated in the obtained reaction solution was separated by filtration, washed with water, and dried to obtain 8.6 parts of a red solid represented by the following formula (18).
- the obtained solid was added to 200 parts of 10% aqueous ethanol and stirred, and the operation of separating the precipitated solid by filtration was repeated three times to obtain a solid.
- the obtained solid was dissolved in 150 parts of water, and acetone was added appropriately (about the same amount as water as a guide) to precipitate the inorganic salt as an insoluble solid, followed by filtration.
- the obtained filtrate was evaporated, and the precipitated solid was suspended in isopropanol, filtered and separated, and dried to give 2.08 parts of red salt of the sodium salt of the dye represented by the following formula (19).
- a solid was obtained.
- the content of the dye represented by the formula (19) in the total amount of the dye was 93.0% in terms of HPLC area ratio. [lambda] max: 549.5 nm.
- Example 9 (Process 1) In 120 parts of ice water, 33.0 parts of the wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes, then 7.5 parts of o-anisidine was added, and the temperature was 25-30 ° C. The reaction was carried out for 22 hours under the condition of adjusting the pH to 9.0 with about 8% aqueous sodium hydroxide solution. The solid precipitated in the obtained reaction solution was separated by filtration, washed with water, and dried to obtain 10.0 parts of a red solid represented by the following formula (20).
- the obtained solid was added to 200 parts of 5% water-containing ethanol and stirred, and the operation of separating the precipitated solid by filtration was repeated three times to obtain a solid.
- the obtained solid was dissolved in 150 parts of water, and acetone was added appropriately (about the same amount as water as a guide) to precipitate the inorganic salt as an insoluble solid, followed by filtration.
- the obtained filtrate was evaporated, and the precipitated solid was suspended in isopropanol, filtered and dried, and dried to give 1.3 parts of the sodium salt of the dye of the present invention represented by the following formula (21).
- a solid was obtained.
- the content of the dye represented by the formula (21) in the total amount of the dye was 85.1% in terms of HPLC area ratio. ⁇ max: 530.5 nm.
- Example 10 (Process 1) In 120 parts of ice water, 33.0 parts of the wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes, and then 7.5 parts of p-anisidine was added, The reaction was carried out for 4 hours and 30 minutes under the condition of adjusting the pH to 9.0 with about 8% aqueous sodium hydroxide solution. The solid precipitated in the obtained reaction solution was separated by filtration, washed with water and dried to obtain 10.0 parts of a red solid represented by the following formula (22).
- the obtained wet cake was added to water, the pH of the solution was adjusted to 9.0 with a 25% aqueous sodium hydroxide solution to obtain a solution, and water was further added to adjust the total amount of this solution to 100 parts.
- 10 parts of ammonium chloride was added to the resulting solution, and the precipitated solid was separated by filtration and washed with 100 parts of a 15% aqueous ammonium chloride solution to obtain a wet cake.
- This wet cake was added to water, the pH of the solution was adjusted to 9.0 with 28% aqueous ammonia to obtain a solution, and water was further added to adjust the total amount of the solution to 70 parts.
- Example 11 In 120 parts of ice water, 33.0 parts of the wet cake obtained in the same manner as in (Step 2) of Example 1 was added and stirred for 10 minutes. Then, 19.8 parts of C acid was added, and the mixture was added at 25-30 ° C. The reaction was carried out for 16 hours under the condition of adjusting the pH to 8.0 with an 8% aqueous sodium hydroxide solution. The obtained reaction solution was adjusted to pH 0.5 by adding 35% hydrochloric acid, and the precipitated solid was separated by filtration. A 25% aqueous sodium hydroxide solution was added to the filtrate to adjust the pH to 7.2, and water was further added to make the total amount of the liquid 100 parts.
- Acetone was appropriately added to the obtained liquid (approximately the same amount as water as a guide), and the generated tar was separated from the supernatant by decantation.
- 30 parts of water was added to the obtained tar, and the pH of the liquid was adjusted to 9.0 with 28% aqueous ammonia to obtain a solution.
- 400 parts of isopropanol was added, and the precipitated solid was separated by filtration. This operation is repeated 5 times, and the obtained solid is dried to obtain a dye represented by the following formula (24) in which X d in the above formula (4) is 4,8-disulfo-2-naphthylamino.
- a red solid of 17.4 parts of ammonium salt was obtained. [lambda] max: 529.5 nm.
- Example 12 [(A) Preparation of ink] Using the ammonium salt of the dye of formula (12) obtained in Example 1 above, the ink compositions of the present invention were prepared by mixing the compositions shown in Table 3 below, and filtered through a 0.45 ⁇ m membrane filter. As a result, an ink for evaluation was obtained.
- the “water” in Table 3 ion-exchanged water was used, including those for diluting ammonia water. Water and a 2.8% aqueous ammonia solution were appropriately added so that the pH of the ink composition was 8 to 10 and the total amount was 100 parts.
- This ink preparation is Example 12.
- Example 13 a test ink was prepared in the same manner as in Example 12 except that each of the dyes obtained in Examples 2 to 11 was used instead of the dye obtained in Example 1.
- the preparation of the test ink is referred to as Examples 13 to 22, respectively.
- dye obtained in each Example means the pigment
- the dye obtained in Example 1 is the dye of the present invention represented by the formula (12) obtained in (Step 3) of Example 1.
- Comparative Example 1 Instead of the dye obtained in Example 1, a dried dyed wet cake containing a compound of the following formula (25) obtained by pursuing Examples 1 (1) to (3) of Patent Document 12 is used as the dye. A comparative ink was prepared in the same manner as in Examples 12 to 22 except that the above was used. This is referred to as Comparative Example 1.
- Inkjet recording was performed on glossy paper having an ink receiving layer containing a porous white inorganic substance using an inkjet printer (Pixus iP4100 manufactured by Canon Inc.). At the time of ink jet recording, an image pattern was prepared so that the print density was obtained in several gradations, a recorded material was prepared, and an evaluation test was performed using this as a test piece.
- the glossy paper used is as follows. Glossy paper 1: Product name Photographic Paper Glossy Professional [Platinum Grade] manufactured by Canon Inc. Glossy paper 2: Canon brand name photo paper glossy gold. Glossy paper 3: Epson brand name photo paper Krispia (high gloss). Glossy paper 4: Product name Advanced Photo Paper manufactured by HP.
- the magenta dye of the present invention is suitable for preparing a magenta ink for ink-jet recording, and is excellent in various fastness properties, particularly ozone gas resistance on glossy paper. Therefore, the magenta dye of the present invention and the ink composition of the present invention containing the same are very useful for various recording applications, particularly for inkjet recording applications.
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Abstract
Description
従来、万年筆、フェルトペン等のインク及びインクジェット記録用のインクとしては、水溶性の色素(染料)を水性媒体に溶解したインクが使用されている。また、これらのインクにおいては、ペン先やインク吐出ノズルでのインクの目詰まりを防止すべく、一般に水溶性の有機溶剤が添加されている。これらのインクには、十分な濃度の記録画像を与えること、ペン先やノズルの目詰まりを生じないこと、被記録材上での乾燥性がよいこと、滲みが少ないこと、保存安定性に優れること等が要求される。また、形成される記録画像には、耐水性、耐湿性、耐光性、耐ガス性等の各種の堅牢性が求められている。
特許文献13には、色画像の耐光性に優れ、色再現性に優れるとされる、インクジェット用の着色微粒子分散物等が開示されている。
また、特許文献14には、バルク染色方法に用いるアントラピリドン染料が開示されている。
1)
少なくとも1種類の下記式(1)で表される色素又はその塩を含有するインク組成物、
Xa乃至Xcはそれぞれ独立に、無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;C1-C4アルキル基若しくはヒドロキシ基で置換されたスルホナフチルアミノ基;又はヒドロキシ基;を表し、
Xa乃至Xcの少なくとも1つはヒドロキシ基以外の基であり、
Rは水素原子、カルボキシ基、C1-C8アルコキシ基、C1-C6アルキルチオ基、カルバモイル基、シアノ基、C1-C8アルキル基、アニリノ基、フェノキシ基、アミノ基、ヒドロキシ基、又はメルカプト基を表し、
R1は水素原子、C1-C8アルキル基、ヒドロキシC1-C4アルキル基、フェニル基、モノC1-C4アルキルアミノC1-C4アルキル基、ジ(C1-C4アルキル)アミノC1-C4アルキル基、又はシアノC1-C4アルキル基を表し、
R3及びR4はそれぞれ独立に、水素原子又はC1-C8アルキル基を表す。]
インク組成物中に含有する色素の総含有量が、該インク組成物の総質量に対して、0.5~20質量%である上記1)に記載のインク組成物、
3)
水溶性有機溶剤をさらに含有する上記1)又は2)に記載のインク組成物、
4)
インクジェット記録用である上記1)乃至3)のいずれか一項に記載のインク組成物、
5)
インク組成物中に含有する色素の総質量中における無機不純物の含有量が、該色素の総質量に対して1質量%以下である上記1)乃至4)のいずれか一項に記載のインク組成物、
6)
上記1)乃至5)のいずれか一項に記載のインク組成物をインクとして用い、該インクのインク滴を記録信号に応じて吐出させて、被記録材に付着させることにより記録を行うインクジェット記録方法、
7)
上記被記録材が情報伝達用シートである上記6)に記載のインクジェット記録方法、
8)
上記情報伝達用シートが普通紙又は多孔性白色無機物を含有するインク受容層を有するシートである上記7)に記載のインクジェット記録方法、
9)
上記1)乃至5)のいずれか一項に記載のインク組成物により着色された着色体、
10)
上記6)に記載のインクジェット記録方法により着色された着色体、
11)
上記1)乃至5)のいずれか一項に記載のインク組成物を含有する容器が装填されたインクジェットプリンタ、
上記式(1)で表される色素又はその塩が下記式(2)で表される色素又はその塩である上記1)に記載のインク組成物、
上記式(1)で表される色素又はその塩が下記式(4)で表される色素又はその塩である上記1)に記載のインク組成物、
Xdは無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;又はC1-C4アルキル基若しくはヒドロキシ基で置換されたスルホナフチルアミノ基;を表し、
h及びjはいずれも平均値で、hが0.8以上3.0以下、jが0以上2.2以下であり、hとjとの和は3.0である。]
上記式(1)で表される色素又はその塩が下記合成方法a)及び合成方法b)のいずれかの方法により得られる色素又はその塩である上記1)に記載のインク組成物、
合成方法a):
下記式(5)で表される化合物と、無置換スルホアニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリン;無置換スルホナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたスルホナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させる方法、
合成方法b):
下記式(5)で表される化合物と、無置換アニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたアニリン;無置換ナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させた後、得られた化合物をさらにスルホ化する方法、
少なくとも1種類の下記式(1)で表される色素からなるマゼンタ色素又はその塩、
Xa乃至Xcはそれぞれ独立に、無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;C1-C4アルキル基若しくはヒドロキシ基で置換されたスルホナフチルアミノ基;又はヒドロキシ基;を表し、
Xa乃至Xcの少なくとも1つはヒドロキシ基以外の基であり、
Rは水素原子、カルボキシ基、C1-C8アルコキシ基、C1-C6アルキルチオ基、カルバモイル基、シアノ基、C1-C8アルキル基、アニリノ基、フェノキシ基、アミノ基、ヒドロキシ基、又はメルカプト基を表し、
R1は水素原子、C1-C8アルキル基、ヒドロキシC1-C4アルキル基、フェニル基、モノC1-C4アルキルアミノC1-C4アルキル基、ジ(C1-C4アルキル)アミノC1-C4アルキル基、又はシアノC1-C4アルキル基を表し、
R3及びR4はそれぞれ独立に、水素原子又はC1-C8アルキル基を表す。]
上記式(1)で表される色素が下記式(4)で表される色素である上記16)に記載のマゼンタ色素又はその塩、
Xdは、無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;又はC1-C4アルキル基若しくはヒドロキシ基で置換されたスルホナフチルアミノ基;を表し、
h及びjはいずれも平均値で、hが0.8以上3.0以下、jが0以上2.2以下であり、hとjとの和は3.0である。]
上記式(1)で表される色素が下記合成方法a)及び合成方法b)のいずれかの方法により得られる色素である上記16)に記載のマゼンタ色素又はその塩、
合成方法a)
下記式(5)で表される化合物と、無置換スルホアニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリン;無置換スルホナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたスルホナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させる方法。
合成方法b)
下記式(5)で表される化合物と、無置換アニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたアニリン;無置換ナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させた後、得られた化合物をさらにスルホ化する方法。
に関する。
本発明のマゼンタ色素又はその塩は、少なくとも1種類の上記式(1)で表される色素からなるマゼンタ色素又はその塩である。本明細書においては煩雑さを避けるため、「本発明のマゼンタ色素又はその塩」の両者を含めて、以下「本発明のマゼンタ色素」と簡略して記載する。
式(1)で表される色素は、単一の色素として使用してもよいし、複数の色素の混合物として使用してもよい。色素合成の容易さ、安価さ、及び合成された色素の溶解性等の観点から、式(1)で表される色素は複数の色素からなる色素混合物として本発明のインク組成物に含有するのが好ましい。
具体例としては、2-スルホアニリノ、3-スルホアニリノ、4-スルホアニリノ等のスルホ基が1つ置換したもの;3,5-ジスルホアニリノ等のスルホ基が2つ置換したもの;2,4,6-トリスルホアニリノ等のスルホ基が3つ置換したものが挙げられる。これらの中では、2-スルホアニリノ、3-スルホアニリノ、及び4-スルホアニリノが好ましく、3-スルホアニリノ及び4-スルホアニリノがより好ましい。
該C1-C12アルキル基の具体例としては、メチル、エチル、n-プロピル、n-ブチル、n-ペンチル、n-ヘキシル、n-ヘプチル、n-オクチル、n-ノニル、n-デシル、n-ウンデシル、n-ドデシル等の直鎖のもの;イソプロピル、イソブチル、sec-ブチル、t-ブチル、イソアミル、イソヘキシル、イソヘプチル、イソオクチル、イソノニル、イソデシル、イソウンデシル、イソドデシル等の分岐鎖のもの;シクロプロピル、シクロブチル、シクロペンチル、シクロヘキシル、シクロヘプチル等の環状のもの;等が挙げられる。これらの中でもメチルが特に好ましい。
該C1-C6アルコキシ基の具体例としては、メトキシ、エトキシ、n-プロポキシ、n-ブトキシ、n-ペントキシ、n-ヘキシロキシ等の直鎖のもの;イソプロポキシ、イソブトキシ、sec-ブトキシ、t-ブトキシ、イソアミロキシ、イソヘキシロキシ等の分岐鎖のもの;等が挙げられる。これらの中でもメトキシが特に好ましい。
具体例としては、メトキシ、エトキシ、n-プロポキシ、n-ブトキシ、n-ペントキシ、n-ヘキシロキシ、n-ヘプチロキシ、n-オクチロキシ等の直鎖のもの;イソプロポキシ、イソブトキシ、sec-ブトキシ、t-ブトキシ等の分岐鎖のもの;等が挙げられる。
具体例としては、メチルチオ、エチルチオ、n-プロピルチオ、n-ブチルチオ、n-ペンチルチオ、n-ヘキシルチオ等の直鎖のもの;イソプロピルチオ、イソブチルチオ、sec-ブチルチオ、t-ブチルチオ等の分岐鎖のもの;等が挙げられる。
該C1-C8アルキル基の具体例としては、メチル、エチル、n-プロピル、n-ブチル、n-ペンチル、n-ヘキシル、n-ヘプチル、n-オクチル等の直鎖のもの;イソプロピル、イソブチル、sec-ブチル、t-ブチル、イソアミル、イソヘキシル、イソヘプチル、イソオクチル等の分岐鎖のもの;シクロプロピル、シクロブチル、シクロペンチル、シクロヘキシル、シクロヘプチル等の環状のもの;等が挙げられる。これらの中でもメチル又はシクロヘキシルが好ましく、メチルが特に好ましい。
R3及びR4としては、いずれも水素原子であるのが好ましい。
組み合わせ(1):
「-SO2Xa」基乃至「-SO2Xc」基が2’位、6’位、及び8’位から選択される任意の位置に1つずつ;Rが3’位;R3及びR4が7’位、9’位、及び10’位から選択されるいずれか2つの位置に1つずつ;の組み合わせ。
組み合わせ(2):
「-SO2Xa」基乃至「-SO2Xc」基が4’位、6’位、及び8’位から選択される任意の位置に1つずつ;Rが1’位;R3及びR4が7’位、9’位、及び10’位から選択されるいずれか2つの位置に1つずつ;の組み合わせ。
組み合わせ(3):
「-SO2Xa」基乃至「-SO2Xc」基が2’位に1つと、6’位、8’位、及び10’位から選択されるいずれか2つの位置に1つずつ;Rが3’位;R3及びR4が7’位及び9’位に1つずつ;の組み合わせ。
組み合わせ(4):
「-SO2Xa」基乃至「-SO2Xc」基が2’位に1つと、7’位、8’位、及び10’位から選択されるいずれか2つの位置に1つずつ;Rが3’位;R3及びR4が6’位及び9’位に1つずつ;の組み合わせ。
これらの組み合わせのうち、組み合わせ(1)が特に好ましい。
上記式(2)及び式(3)中、適宜使用されるXa乃至Xc、R、及びR1は、上記式(1)におけるのと、好ましいもの等を含めて同じ意味を表す。
式(2)における「-SO2Xa」基乃至「-SO2Xc」基、及びRの置換位置については、上記式(1)におけるR3及びR4を水素原子と読み替えれば、上記式(1)における置換位置の組み合わせ(1)乃至(4)と、好ましいものを含めて同じでよい。
また、式(3)における「-SO2Xa」基乃至「-SO2Xc」基は、上記式(101)における2’位、6’位、及び8’位から選択される任意の位置に1つずつ置換するのが好ましい。
式(4)で表される色素は、上記式(1)乃至式(3)で表される色素のうち、Xa乃至Xcの少なくとも1つがヒドロキシ基以外の基であり、且つ、該ヒドロキシ基以外の基が、無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基からなる群より選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;及び、C1-C4アルキル基又はヒドロキシ基で置換されたスルホナフチルアミノ基;よりなる群から選択される単一の基である色素の混合物である。
式(4)で表される色素の一例として、Xa乃至Xcの全てが無置換スルホアニリノ基;いずれか2つが無置換スルホアニリノ基で残りの1つがヒドロキシ基;いずれか1つが無置換スルホアニリノ基で残りの2つがヒドロキシ基;である、少なくとも3種類の色素からなる色素混合物が挙げられる。
したがって、式(4)中、Xdにおける無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基からなる群より選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;C1-C4アルキル基又はヒドロキシ基で置換されたスルホナフチルアミノ基;は、上記式(1)中のXa乃至Xcにおける相当する基と、好ましいもの等を含めて同じ意味を表す。
hは通常0.8以上3.0以下、好ましくは1.0以上3.0以下である。
jは通常0以上2.2以下、好ましくは0以上2.0以下である。
式(4)で表される色素は、実質的に「-SO2Xd」基と、「-SO3H」基とが、特定のアントラピリドン構造に合計で3つ置換した色素の混合物である。したがって、該色素混合物のHPLC分析を行い、該色素混合物を構成する、それぞれ単一の色素のHPLCにおける面積比を測定することにより、式(4)におけるh及びjの値を算出することができる。一例として、下記表2の構成である色素混合物(A)におけるhの計算方法を下記する。なお、「HPLC面積比」は、目的とする式(4)で表される色素の合計を100%に換算した値である。
h=[(1×A1)+(2×A2)+(3×A3)]/(A1+A2+A3)
式(4)で表される色素は、「-SO2Xd」基及び「-SO3H」基の置換割合、及び置換位置の異なる異性体色素の混合物である。このうち置換割合としては、前者が3つで後者が0、前者が2つで後者が1つ;前者が1つで後者が2つ;等の例が挙げられる。また、置換位置としては、前者が2つで後者が1つのとき、前者が2’位及び6’位で、後者が8’位;前者が2’位及び8’位で、後者が6’位;前者が6’位及び8’位で、後者が2’位;等の例が挙げられる。
具体的には、特公平7-45629号公報等に記載の公知の方法に準じて得られる下記式(6)で表されるアントラキノン化合物1モルに、置換基としてRを有するベンゾイル酢酸エステル、触媒として炭酸ナトリウム、炭酸カリウム、酢酸ナトリウム、酢酸カリウム等の塩基の存在下、オルソジクロロベンゼン、モノクロロベンゼン、ニトロベンゼン、キシレン等の溶媒中、100~200℃、3~30時間反応を行う。反応終了後冷却し、メタノール、エタノール、プロパノール等のC1-C4アルコールで希釈して得られる析出固体を濾過分離した後、必要により上記C1-C4アルコールで洗浄し、さらに水又は温水で洗浄し、乾燥することにより、下記式(7)で表される化合物を得る。
また、式(5)における「-SO2Q」基の置換位置は特に制限されないが、3つの「-SO2Q」基は、式(1)における「-SO2Xa」基乃至「-SO2Xc」基の3つの基に対応するため、その置換位置は上記式(1)における置換位置の組み合わせ(1)乃至(4)における「-SO2Xa」基乃至「-SO2Xc」基を、「-SO2Q」基と読み替えたものと同じであるのが好ましい。
上記のアミンは式(1)におけるXa乃至Xcに対応し、一般式としては、「H-Xa」、「H-Xb」、及び「H-Xc」でそれぞれ表される。したがって、該アミンとしては、無置換スルホアニリン;C1-C12アルキル基で置換されたスルホアニリン;C1-C6アルコキシ基で置換されたスルホアニリン;スルホナフチルアミン;が好ましい。
合成方法b)におけるスルホ化の方法としては、発煙硫酸中0~40℃でスルホ化を行う方法が挙げられる。なお、このスルホ化の反応条件によっては、式(5)で表される化合物と、上記特定のアミンとの縮合反応により得られたスルファモイル基の一部が加水分解を受け、スルホン酸へと変換されることがある。
したがって、水系インク組成物としての保存安定性と記録画像の堅牢性とを考慮して、Xa乃至Xcにおけるヒドロキシ基以外の基の比率を設定するのと共に、水に対する溶解性を向上させる目的で、上記式(1)の色素を1種以上、好ましくは1種以上8種以下、より好ましくは3種以上7種以下の色素混合物とするのが好ましい。
同様に、ヒドロキシC1-C4アルキル基の例としては、ヒドロキシメチル、ヒドロキシエチル、3-ヒドロキシプロピル、2-ヒドロキシプロピル、4-ヒドロキシブチル、3-ヒドロキシブチル、2-ヒドロキシブチル等が挙げられる。
同様に、ヒドロキシC1-C4アルコキシC1-C4アルキル基の例としては、ヒドロキシエトキシメチル、2-ヒドロキシエトキシエチル、3-(ヒドロキシエトキシ)プロピル、3-(ヒドロキシエトキシ)ブチル、2-(ヒドロキシエトキシ)ブチル等が挙げられる。
例えば、ナトリウム塩を得る方法としては、該化合物の合成反応における最終工程終了後の反応液;あるいは該化合物を含むウェットケーキ又はその乾燥物等を溶解した水溶液;等の液に食塩を加えて塩析し、析出固体を濾過する方法が挙げられる。
また、得られたナトリウム塩の固体を水に溶解後、塩酸等の酸を加えてその溶液のpHを適宜調整し、析出する固体を濾過することにより、該化合物の遊離酸;あるいは該化合物の一部がナトリウム塩である遊離酸とナトリウム塩との混合物;を得ることもできる。
さらに、該化合物の遊離酸の固体を水と共に撹拌し、この液に例えば、水酸化カリウム、水酸化リチウム、アンモニア水、式(8)で表される4級アンモニウム塩の水酸化物等を加えてアルカリ性にすれば、各々相当するカリウム塩、リチウム塩、アンモニウム塩、又は4級アンモニウム塩を得ることもできる。この際に、遊離酸のモル数に対して、上記各種の水酸化物等のモル数を制限して複数のものを加えることにより、例えばリチウムとナトリウムとの混塩等、さらにはリチウム、ナトリウム、カリウム、及びアンモニウムの混塩等を得ることも可能である。
該化合物の塩は、その塩の種類により溶解性等の物理的な性質、あるいはインクとして用いた場合のインクの性能、特に堅牢性に関する性能が変化する場合もある。このため、目的とするインクの性能等に応じて塩の種類を選択することも好ましく行われる。
後記するように、マゼンタの色相の微調整等を目的として、本発明のインク組成物中に、本発明により得られる効果を阻害しない範囲で、さらに他の色素、例えば公知の色素を含有してもよい。しかし、本発明のインク組成物中に含有する色素としては、色素の全てが実質的に上記式(1)で表される色素であるのが好ましく、該式(1)で表される色素の色素混合物であるのがより好ましい。
これらの無機不純物は、本発明のインク組成物を調製する場合に、インク組成物の保存安定性や、該インク組成物をインクとして使用するインクジェット記録等を行う際の吐出安定性等に悪影響を与えることが多い。このため、特にインクジェット記録に本発明のインク組成物を用いるときは、本発明のインク組成物中に含有する色素の総質量中における無機不純物の含有量は、該色素の総質量に対して、1質量%以下にすることが好ましく、下限は0質量%、すなわち分析機器における検出限界以下でよい。
無機不純物の少ない色素を製造する方法としては、例えば逆浸透膜により無機不純物を除去する方法が知られている。その他の方法として、色素の乾燥物あるいはウェットケーキを、メタノールやイソプロパノール等のC1-C4アルコール、又は必要に応じて該アルコールと水との混合溶媒中で懸濁精製する方法等が挙げられる。
上記式(1)で表される色素の合成反応における最終工程終了後の反応液等は、本発明のインク組成物の製造に直接使用することができる。しかし、該反応液から例えばスプレー乾燥や、晶析等の方法により目的色素を単離し、必要に応じて乾燥した後、これをインク組成物の製造に使用することもできる。
インク調製剤としては、例えば、防腐防黴剤、pH調整剤、キレート試薬、防錆剤、紫外線吸収剤、粘度調整剤、染料溶解剤、褪色防止剤、乳化安定剤、表面張力調整剤、消泡剤等の公知の添加剤が挙げられる。
水溶性有機溶剤の含有量は、インク組成物の総質量に対して通常0~60質量%、好ましくは10~50質量%であり、インク調製剤は同様に0~20質量%、好ましくは0~15質量%用いられる。上記以外の残部は水である。
有機ハロゲン系化合物としては、例えばペンタクロロフェノールナトリウムが挙げられる。
ピリジンオキシド系化合物としては、例えば2-ピリジンチオール-1-オキサイドナトリウムが挙げられる。
イソチアゾリン系化合物としては、例えば、1,2-ベンズイソチアゾリン-3-オン、2-n-オクチル-4-イソチアゾリン-3-オン、5-クロロ-2-メチル-4-イソチアゾリン-3-オン、5-クロロ-2-メチル-4-イソチアゾリン-3-オンマグネシウムクロライド、5-クロロ-2-メチル-4-イソチアゾリン-3-オンカルシウムクロライド、2-メチル-4-イソチアゾリン-3-オンカルシウムクロライド等が挙げられる。
その他の防腐防黴剤としては、ソルビン酸ソーダ、酢酸ソーダ、安息香酸ナトリウム等が挙げられる。
防腐防黴剤の他の具体例としては、例えば、アーチ・ケミカルズ・ジャパン株式会社製 商品名プロクセルRTMGXL(S)、プロクセルRTMXL-2(S)等が好ましく挙げられる。なお、本明細書において上付きの「RTM」は、登録商標を意味する。
さらに、必要に応じてメンブランフィルタ等を用いて精密濾過を行ってインク組成物より夾雑物を除いてもよい。特に、インクジェットプリンタ用のインクとして使用する場合は精密濾過を行うことが好ましい。精密濾過を行うフィルタの孔径は通常1μm~0.1μm、好ましくは、0.8μm~0.1μmである。
また、本発明のインク組成物により得られる効果を阻害しない範囲で、公知のマゼンタ色素を併用してもよい。
また、他の色、例えばブラックインクの調色用、あるいはイエロー色素やシアン色素と混合して、レッドインクやブルー(又はバイオレット)インクを調製する目的で、本発明のインク組成物を用いることもできる。
本発明のインクジェット記録方法は、本発明のインク組成物と共に、イエロー、シアン、必要に応じて、グリーン、ブルー(又はバイオレット)、レッド、ブラック等の各インクを併用し得る。この場合、各色のインクは、それぞれの容器に注入され、それらの容器を、インクジェットプリンタの所定位置に装填して使用する。
インクジェットプリンタには、例えば機械的振動を利用したピエゾ方式;加熱により生ずる泡を利用したバブルジェット(登録商標)方式;等を利用したものがある。本発明のインクジェット記録方法は、いかなる方式であっても使用が可能である。
普通紙とは、特にインク受容層を設けていない紙のことを意味し、用途によって様々なものが数多く市販されている。市販されている普通紙の一例を挙げると、インクジェット用としては、セイコーエプソン社製 両面上質普通紙;キヤノン社製 カラー普通紙;Hewlett Packard社製 Multipurpose Paper、All-in-one Printing Paper;等がある。この他、特に用途をインクジェット印刷に限定しないPPC用紙等も普通紙である。
本発明のインク組成物は、上記のような普通紙に記録した画像の鮮明性が特に優れており、情報伝達シートの中でも普通紙が好ましい。しかし、光、オゾン、湿度、水や摩擦等に対する堅牢性にも優れるため、普通紙と共にインクジェット専用紙にも使用することが可能である。
本発明のインク組成物は、発色性が高く鮮明性が良好であり、印捺、複写、マーキング、筆記、製図、スタンピング、又は各種の記録(印刷)、特にインクジェット記録における使用に適する。
また、本発明のインク組成物をインクジェット記録に用いた場合、水、光、オゾンガス等の酸化性ガス、湿度、及び摩擦等に対する良好な耐性を有する高品質のマゼンタ色の記録物が得られ、特に写真画質用インクジェット専用紙やフィルムのような多孔性白色無機物を表面に塗工した被記録材に記録した場合の耐オゾンガス性が良好であり、写真画質の記録画像の長期保存安定性にも優れている。このため、被記録材を選ばないことが特徴の1つであるインクジェット記録に好適である。
さらに、本発明のインク組成物をインクジェット記録に使用した場合、ノズル付近におけるインク組成物の乾燥による固体の析出は非常に起こりにくく、噴射器(インクヘッド)を閉塞することもない。
このように、本発明の色素及びこれを含有する本発明のインク組成物は、各種のインク用途、特にインクジェット記録インク用途として極めて有用である。
合成反応、晶析等の各操作は、特に断りのない限りいずれも撹拌下に行い、反応温度は反応系内温度の実測値を記載した。また、1回の合成で目的化合物の必要量が得られなかった場合には、必要量が得られるまで同じ反応を繰返し行った。
なお、実施例で合成した本発明のインク組成物に含有する各色素については、水中でのλmax(最大吸収波長)を測定し、得られた測定値を記載した。
(工程1)
オルソジクロロベンゼン75.0部中に、公知の方法で得られる下記式(9)で表される化合物23.6部、炭酸ナトリウム0.75部、ベンゾイル酢酸エチルエステル36.0部を順次加えて昇温し、170~175℃の温度で3時間反応させた。反応終了後、反応液を冷却し、30℃にてメタノール150部を添加して30分撹拌した後、析出固体を濾過分離した。得られた固体をメタノール200部で洗浄し、次いで水洗した後、乾燥して、下記式(10)で表される化合物28.8部を赤色固体として得た。
室温下、クロロスルホン酸151.5部に上記式(10)で表される化合物18.2部を、60℃を超えないように加えた後、80℃に昇温して4時間撹拌した。反応液を70℃へ冷却し、60~70℃を保持したまま塩化チオニル71.4部を30分間かけて滴下し、その後70℃で3時間反応させた。室温まで放冷した反応液を氷水500部中に加え、次いで過酸化水素水25.6部をさらに加えた。その間適宜氷を加え、液温を10℃以下に保持した。赤橙色の析出固体を濾過分離することにより、下記式(11)で表される化合物を含むウェットケーキ132.0部を得た。なお、下記式(11)で表される化合物は、上記式(5)におけるQが塩素原子で表される化合物である。
氷水120部中に、上記(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、メタニル酸10.4部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で5時間30分反応させた。得られた反応液に35%塩酸を加えてpH3.0に調整し、塩化アンモニウム30.0部を加えた。析出した固体を濾過分離し、22%塩化アンモニウム水溶液100部で洗浄することによりウェットケーキを得た。得られたウェットケーキを50部の水に溶解させ、イソプロパノール400部を加えて析出した固体を濾過分離した。得られた固体を乾燥し、上記式(4)におけるhが2.7、jが0.3、Xdが3-スルホアニリノである、下記式(12)で表される色素のアンモニウム塩5.7部の赤色固体を得た。
λmax:520.5nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 4.2
2 34.4
3 61.4
氷水1440部中に、実施例1の(工程2)と同様にして得たウェットケーキ396.0部を加えて10分間撹拌した後、メタニル酸124.7部を加え、25~30℃、25%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で4時間反応させた。得られた反応液に35%塩酸を加えてpH3.0に調整し、塩化ナトリウム380.0部を加えた。析出した固体を濾過分離し、22%塩化ナトリウム水300部で洗浄することによりウェットケーキを得た。得られたウェットケーキを水に加え、25%水酸化ナトリウム水溶液により液のpHを4.0に調整しながら溶液とし、この溶液にさらに水を加えてその総量を1300部に調整した。得られた溶液に塩化ナトリウム255部を加え、析出した固体を濾過分離し、22%塩化ナトリウム水溶液200部で洗浄することによりウェットケーキを得た。この操作を3回繰り返しウェットケーキを得た。得られたウェットケーキを水に加え、25%水酸化ナトリウム水溶液により液のpHを4.0に調整しながら溶液とし、この溶液にさらに水を加えてその総量を800部に調整した。得られた溶液に塩化アンモニウム120部を加え、析出した固体を濾過分離し、22%塩化アンモニウム水溶液200部で洗浄することによりウェットケーキを得た。得られたウェットケーキを水に加え、25%水酸化ナトリウム水溶液により液のpHを4.0に調整しながら溶液とし、この溶液にさらに水を加えてその総量を800部に調整した。得られた溶液に塩化ナトリウム120部を加え、析出した固体を濾過分離し、22%塩化ナトリウム水溶液200部で洗浄することにより、上記式(4)におけるhが2.7、jが0.3、Xdが3-スルホアニリノである、上記式(12)で表される色素のナトリウム塩54.6部を含むウェットケーキを得た。
得られたウェットケーキを水に加えて水溶液とした後、逆浸透膜精製することにより、色素の含有量が10質量%である本発明のインク組成物を得た。このインク組成物中における塩素イオン及び硫酸イオンの含有量を測定した結果、これらの無機不純物の含有量は総量で300ppm以下であった。
なお、このインク組成物に含有する色素の総量中における式(12)で表される色素の含有量は、HPLCの面積比で98.2%であった。
λmax:519nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 4.0
2 18.4
3 77.6
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、スルファニル酸10.4部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で5時間反応させた。この反応液に35%塩酸を加えてpH2.0に調整した。塩化アンモニウム30.0部を加えて析出した固体を濾過分離し、22%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを再度70部の水に溶解し、25%水酸化ナトリウム水溶液を加えてpH7.0に調整し、20℃で塩化アンモニウム14.0部を加えた。析出した固体を濾過分離し、24%塩化アンモニウム水溶液で洗浄し、ウェットケーキを得た。得られたウェットケーキを20部の水に溶解させ、イソプロパノール300部を加えて析出した固体を濾過分離、乾燥し、上記式(4)におけるhが2.1、jが0.9、Xdが4-スルホアニリノである、下記式(13)で表される色素のアンモニウム塩4.45部の赤色固体を得た。
λmax:522nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 16.6
2 54.9
3 28.5
o-アニシジン-5-スルホン酸6.1部を水100部に加えて撹拌した。この液に、氷水120部中に実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した液を1時間かけて滴下した。その間、反応液は25~30℃、約8%の水酸化ナトリウム水溶液でpH6.5~7.0に保持した。この反応液を25~30℃、pH6.5~7.0に保持したままさらに3時間反応させた。得られた反応液に35%塩酸を加えてpH3.0に調整し、塩化アンモニウム38.0部を加えて析出した固体を濾過分離し、22%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを再度水40部に溶解させ、25%水酸化ナトリウム水溶液を用いてpH6.6に調整し、塩化アンモニウム4.0部を加えて析出した固体を濾過分離し、24%塩化アンモニウム水溶液100部で洗浄してウェットケーキを得た。得られたウェットケーキを20部の水に溶解し、イソプロパノール400部を加えて析出した固体を濾過分離した。得られた固体を乾燥し、上記式(4)におけるhが2.7、jが0.3、Xdが2-メトキシ-5-スルホアニリノである、下記式(14)で表される色素のアンモニウム塩3.1部の赤色固体を得た。
λmax:516nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 4.0
2 22.0
3 77.6
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、ブレンナー酸14.0部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH8.0に調整する条件下で2時間反応させた。この反応液に35%塩酸を加えてpH8.0に調整した。得られた液に塩化アンモニウム17.0部を加えて析出した固体を濾過分離し、15%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを再度200部の水に溶解し、25%水酸化ナトリウム水溶液を加えてpH9.0に調整し、20℃で塩化アンモニウム20.0部を加えて析出した固体を濾過分離し、ウェットケーキを得た。この操作をさらに3回繰り返して得たウェットケーキを50部の水に懸濁し、析出固体を濾過分離し、ウェットケーキを得た。得られたウェットケーキを50部の水に溶解し、イソプロパノール400部を加えて析出した固体を濾過分離、乾燥し、上記式(4)におけるhが2.8、jが0.2、Xdが6-スルホ-2-ナフチルアミノである、下記式(15)で表される色素のアンモニウム塩7.2部の赤色固体を得た。
λmax:533.5nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 1.9
2 16.9
3 81.2
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、1,6-クレーブ酸14.0部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH8.0に調整する条件下で3時間反応させた。得られた反応液に35%塩酸を加えてpH2.0に調整し、析出した未反応の1,6-クレーブ酸を濾別した。得られた濾液に25%水酸化ナトリウム水溶液を加えてpH3.0に調整し、塩化アンモニウム19.0部を加えて析出した固体を濾過分離し、24%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを100部の水に溶解し、28%アンモニア水を加えてpH9.0に調整し、塩化アンモニウム10.0部を加えて析出した固体を濾過分離してウェットケーキを得た。この操作を4回繰り返して得たウェットケーキを50部の水に懸濁し、析出固体を濾過分離してウェットケーキを得た。得られたウェットケーキを50部の水に溶解させ、イソプロパノール400部を加えて析出した固体を濾過分離、乾燥し、上記式(4)におけるhが2.8、jが0.2、Xdが6-スルホ-1-ナフチルアミノである、下記式(16)で表される色素のアンモニウム塩7.2部の赤色固体を得た。
λmax:527.5nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 0
2 16.0
3 84.0
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、ナフチオン酸19.8部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で17時間反応させた。得られた反応液に35%塩酸を加えてpH6.0に調整し、塩化アンモニウム13.0部を加えて析出した固体を濾過分離し、24%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを100部の水に溶解し、25%水酸化ナトリウム水溶液を加えてpH6.5に調整し、塩化アンモニウム10.0部を加え、析出した固体を濾過分離し、ウェットケーキを得た。得られたウェットケーキを100部の水に溶解させ、28%アンモニア水を用いてpH8.0に調整し、塩化アンモニウム10.0部を加えて析出した固体を濾過分離し、ウェットケーキを得た。この操作を2回繰り返して得たウェットケーキを50部の水に懸濁し、析出固体を濾過分離し、ウェットケーキを得た。得られたウェットケーキを20部の水に溶解させ、イソプロパノール300部を加えて析出した固体を濾過分離、乾燥し、上記式(4)におけるhが2.6、jが0.4、Xdが4-スルホ-1-ナフチルアミノである、下記式(17)で表される色素のアンモニウム塩3.5部の赤色固体を得た。
λmax:519.5nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 5.6
2 26.8
3 67.6
(工程1)
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、p-トルイジン6.5部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で3時間反応させた。得られた反応液中に析出した固体を濾過分離し、水で洗浄、乾燥させることにより、下記式(18)で表される化合物8.6部の赤色固体を得た。
96%硫酸20.2部を氷冷により5~10℃とし、同温度を保持したまま31.3%発煙硫酸14.8部を30分間かけて滴下した。得られた液に、上記(工程1)で得た式(18)で表される化合物4.0部を加え、徐々に室温に戻しながら24時間反応させた。得られた反応液を、水20部と氷50部とからなる氷水中に1時間かけて滴下した。得られた液に25%水酸化ナトリウム水溶液を加えてpH7.0とし、800部のイソプロパノールを加え、析出した固体を濾過分離した。得られた固体を10%含水エタノール200部に加えて撹拌し、析出固体を濾過分離する操作を3回繰り返して固体を得た。得られた固体を150部の水に溶解し、アセトンを適宜(目安として水と同量程度)加えて無機塩を不溶性固体として析出させ、濾別した。得られた濾液をエバポレートし、析出した固体をイソプロパノールに懸濁した後、濾過分離し、乾燥させることにより、下記式(19)で表される本発明の色素のナトリウム塩2.08部の赤色固体を得た。なお、HPLC分析により、この色素の総量中における式(19)で表される色素の含有量は、HPLCの面積比で93.0%であった。
λmax:549.5nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 100.0
2 0
3 0
(工程1)
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、o-アニシジン7.5部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で22時間反応させた。得られた反応液中に析出した固体を濾過分離し、水で洗浄、乾燥させることにより、下記式(20)で表される化合物10.0部の赤色固体を得た。
96%硫酸20.2部を氷冷により5~10℃とし、同温度を保持したまま31.3%発煙硫酸14.8部を30分間かけて滴下した。得られた液に、上記(工程1)で得た式(20)で表される化合物3.0部を加え、徐々に室温に戻しながら21時間反応させた。得られた反応液を、水20部と氷50部とからなる氷水中に1時間かけて滴下し、28%アンモニア水を加えてpH7.0とした。得られた液に800部のイソプロパノールを加え、析出した固体を濾過分離した。得られた固体を、5%含水エタノール200部に加えて撹拌し、析出固体を濾過分離する操作を3回繰り返し、固体を得た。得られた固体を150部の水に溶解し、アセトンを適宜(目安として水と同量程度)加えて無機塩を不溶性固体として析出させ、濾別した。得られた濾液をエバポレートし、析出した固体をイソプロパノールに懸濁した後、濾過分離し、乾燥させることにより、下記式(21)で表される本発明の色素のナトリウム塩1.3部の赤色固体を得た。なお、HPLC分析により、この色素の総量中における式(21)で表される色素の含有量は、HPLCの面積比で85.1%であった。
λmax:530.5nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 98.3
2 0
3 1.7
(工程1)
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、p-アニシジン7.5部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH9.0に調整する条件下で4時間30分反応させた。得られた反応液中に析出した固体を濾過分離し、水で洗浄、乾燥させることにより、下記式(22)で表される化合物10.0部の赤色固体を得た。
96%硫酸28.8部を氷冷により5~10℃とし、同温度を保持したまま31.3%発煙硫酸21.2部を30分間かけて滴下した。得られた液に、上記(工程1)で得た式(22)で表される化合物5.0部を加え、徐々に室温に戻しながら2時間20分反応させた。得られた反応液を、水20部と氷50部とからなる氷水中に1時間かけて滴下し、析出した固体を濾過分離し、24%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを水に加え、25%水酸化ナトリウム水溶液により液のpHを9.0に調整して溶液とし、さらに水を加えてこの溶液の総量を100部に調整した。得られた溶液に塩化アンモニウム10部を加え、析出した固体を濾過分離し、15%塩化アンモニウム水溶液100部で洗浄しウェットケーキを得た。このウェットケーキを水に加え、28%アンモニア水により液のpHを9.0に調整して溶液とし、さらに水を加えて液の総量を70部に調整した。得られた溶液に塩化アンモニウム14部を加え、析出した固体を濾過分離し、24%塩化アンモニウム水溶液100部で洗浄し、ウェットケーキを得た。得られたウェットケーキを20部の水に溶解させた後、イソプロピルアルコール400部を加え、析出した固体を濾過分離、乾燥し、下記式(23)で表される本発明の色素のアンモニウム塩3.2部の赤色固体を得た。なお、HPLC分析により、この色素の総量中における式(23)で表される色素の含有量は、HPLCの面積比で84.3%であった。
λmax:533.0nm。
HPLC分析結果:
-SO2Xdの置換数 HPLC面積比(%)
1 1.8
2 13.1
3 85.1
氷水120部中に、実施例1の(工程2)と同様にして得たウェットケーキ33.0部を加えて10分間撹拌した後、C酸19.8部を加え、25~30℃、約8%の水酸化ナトリウム水溶液でpH8.0に調整する条件下で16時間反応した。得られた反応液に35%塩酸を加えてpH0.5に調整し、析出した固体を濾別した。濾液に25%水酸化ナトリウム水溶液を加えてpH7.2に調整し、さらに水を加えて液の総量を100部とした。得られた液にアセトンを適宜(目安として水と同量程度)加え、生成したタールをデカンテーションにより上澄み液と分離した。得られたタールに水30部を加え、28%アンモニア水により液のpHを9.0に調整して溶液とした。この溶液にイソプロパノール400部を加えて析出した固体を濾過分離した。この操作を5回繰り返し、得られた固体を乾燥することにより、上記式(4)におけるXdが4,8-ジスルホ-2-ナフチルアミノである、下記式(24)で表される色素のアンモニウム塩17.4部の赤色固体を得た。
λmax:529.5nm。
[(A)インクの調製]
上記実施例1で得られた式(12)の色素のアンモニウム塩を用い、下記表3に示した組成を混合して本発明のインク組成物を調製し、0.45μmのメンブランフィルタで濾過することにより、評価用のインクを得た。表3中の「水」は、アンモニア水の希釈用途のものを含めてイオン交換水を使用した。なお、インク組成物のpHが8~10、総量100部になるように水、及び2.8%アンモニア水溶液を適宜加えた。このインクの調製を実施例12とする。また、実施例1で得た色素の代わりに、実施例2乃至11で得た色素をそれぞれ使用する以外は実施例12と同様にして、試験用のインクを調製した。この試験用インクの調製を、それぞれ実施例13乃至22とする。なお、各実施例で得た色素とは、各実施例における最終工程で得た本発明の色素を意味する。例えば、実施例1で得た色素とは、実施例1の(工程3)で得た式(12)で表される本発明の色素である。
表3中、「界面活性剤」は、日信化学社製、商品名サーフィノールRTM104PG50を使用した。
実施例1で得た色素の代わりに、特許文献12の実施例1(1)乃至(3)を追試することにより得た下記式(25)の化合物を含有するウェットケーキを乾燥したものを色素として用いる以外は、実施例12乃至22と同様にして比較用のインクを調製した。これを比較例1とする。
インクジェットプリンタ(キヤノン社製 Pixus iP4100)を用いて、多孔性白色無機物を含有するインク受容層を有する光沢紙にインクジェット記録を行った。インクジェット記録の際、印字濃度が数段階の諧調として得られるように画像パターンを作り記録物を作成し、これを試験片として評価試験を実施した。
なお、使用した光沢紙は以下の通りである。
光沢紙1:キヤノン社製 商品名写真用紙光沢プロ[プラチナグレード]。
光沢紙2:キヤノン社製 商品名写真用紙光沢ゴールド。
光沢紙3:エプソン社製 商品名写真用紙クリスピア(高光沢)。
光沢紙4:HP社製 商品名アドバンスフォトペーパー。
試験片をオゾンウェザーメーター(スガ試験機社製)に設置し、オゾン濃度10ppm、湿度60%RH、温度24℃の環境下に24時間放置した。試験前の試験片における反射濃度D値が1.0に最も近い階調部分について、試験前後のD値を測色システム(GRETAGRTM SPM50:GRETAG社製)を用いて光源D65、視野角2度、濃度基準:DINの条件で測定し、以下の計算式から色素残存率を測定した。結果を下記表4に示す。
色素残存率=(試験後の反射濃度/試験前の反射濃度)×100(%)
Claims (20)
- 少なくとも1種類の下記式(1)で表される色素又はその塩を含有するインク組成物。
Xa乃至Xcはそれぞれ独立に、無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;C1-C4アルキル基若しくはヒドロキシ基で置換されたスルホナフチルアミノ基;又はヒドロキシ基;を表し、
Xa乃至Xcの少なくとも1つはヒドロキシ基以外の基であり、
Rは水素原子、カルボキシ基、C1-C8アルコキシ基、C1-C6アルキルチオ基、カルバモイル基、シアノ基、C1-C8アルキル基、アニリノ基、フェノキシ基、アミノ基、ヒドロキシ基、又はメルカプト基を表し、
R1は水素原子、C1-C8アルキル基、ヒドロキシC1-C4アルキル基、フェニル基、モノC1-C4アルキルアミノC1-C4アルキル基、ジ(C1-C4アルキル)アミノC1-C4アルキル基、又はシアノC1-C4アルキル基を表し、
R3及びR4はそれぞれ独立に、水素原子又はC1-C8アルキル基を表す。] - インク組成物中に含有する色素の総含有量が、該インク組成物の総質量に対して、0.5~20質量%である請求項1に記載のインク組成物。
- 水溶性有機溶剤をさらに含有する請求項1又は2に記載のインク組成物。
- インクジェット記録用である請求項1乃至3のいずれか一項に記載のインク組成物。
- インク組成物中に含有する色素の総質量中における無機不純物の含有量が、該色素の総質量に対して1質量%以下である請求項1乃至4のいずれか一項に記載のインク組成物。
- 請求項1乃至5のいずれか一項に記載のインク組成物をインクとして用い、該インクのインク滴を記録信号に応じて吐出させて、被記録材に付着させることにより記録を行うインクジェット記録方法。
- 前記被記録材が情報伝達用シートである請求項6に記載のインクジェット記録方法。
- 前記情報伝達用シートが普通紙又は多孔性白色無機物を含有するインク受容層を有するシートである請求項7に記載のインクジェット記録方法。
- 請求項1乃至5のいずれか1項に記載のインク組成物により着色された着色体。
- 請求項6に記載のインクジェット記録方法により着色された着色体。
- 請求項1乃至5のいずれか一項に記載のインク組成物を含有する容器が装填されたインクジェットプリンタ。
- 前記式(1)で表される色素又はその塩が下記合成方法a)及び合成方法b)のいずれかの方法により得られる色素又はその塩である請求項1に記載のインク組成物。
合成方法a)
下記式(5)で表される化合物と、無置換スルホアニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリン;無置換スルホナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたスルホナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させる方法。
合成方法b)
下記式(5)で表される化合物と、無置換アニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたアニリン;無置換ナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させた後、得られた化合物をさらにスルホ化する方法。
- 少なくとも1種類の下記式(1)で表される色素からなるマゼンタ色素又はその塩。
Xa乃至Xcはそれぞれ独立に、無置換スルホアニリノ基;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリノ基;無置換スルホナフチルアミノ基;C1-C4アルキル基若しくはヒドロキシ基で置換されたスルホナフチルアミノ基;又はヒドロキシ基;を表し、
Xa乃至Xcの少なくとも1つはヒドロキシ基以外の基であり、
Rは水素原子、カルボキシ基、C1-C8アルコキシ基、C1-C6アルキルチオ基、カルバモイル基、シアノ基、C1-C8アルキル基、アニリノ基、フェノキシ基、アミノ基、ヒドロキシ基、又はメルカプト基を表し、
R1は水素原子、C1-C8アルキル基、ヒドロキシC1-C4アルキル基、フェニル基、モノC1-C4アルキルアミノC1-C4アルキル基、ジ(C1-C4アルキル)アミノC1-C4アルキル基、又はシアノC1-C4アルキル基を表し、
R3及びR4はそれぞれ独立に、水素原子又はC1-C8アルキル基を表す。] - 前記式(1)で表される色素が下記合成方法a)及び合成方法b)のいずれかの方法により得られる色素である請求項16に記載のマゼンタ色素又はその塩。
合成方法a)
下記式(5)で表される化合物と、無置換スルホアニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたスルホアニリン;無置換スルホナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたスルホナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させる方法。
合成方法b)
下記式(5)で表される化合物と、無置換アニリン;C1-C12アルキル基、C1-C6アルコキシ基、及びヒドロキシ基よりなる群から選択される基で置換されたアニリン;無置換ナフチルアミン;及び、C1-C4アルキル基又はヒドロキシ基で置換されたナフチルアミン;よりなる群から選択される少なくとも1種のアミンとを反応させた後、得られた化合物をさらにスルホ化する方法。
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JP2005126587A (ja) * | 2003-10-24 | 2005-05-19 | Konica Minolta Holdings Inc | 色素、着色微粒子分散物、インクジェット用インク及びインクジェット記録方法 |
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