JP5662707B2 - Emulsion ink for stencil printing - Google Patents
Emulsion ink for stencil printing Download PDFInfo
- Publication number
- JP5662707B2 JP5662707B2 JP2010133689A JP2010133689A JP5662707B2 JP 5662707 B2 JP5662707 B2 JP 5662707B2 JP 2010133689 A JP2010133689 A JP 2010133689A JP 2010133689 A JP2010133689 A JP 2010133689A JP 5662707 B2 JP5662707 B2 JP 5662707B2
- Authority
- JP
- Japan
- Prior art keywords
- molecular weight
- oil
- ink
- stencil printing
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000839 emulsion Substances 0.000 title claims description 40
- 229920000180 alkyd Polymers 0.000 claims description 49
- 239000012071 phase Substances 0.000 claims description 37
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 34
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 17
- 239000008346 aqueous phase Substances 0.000 claims description 14
- 239000006229 carbon black Substances 0.000 claims description 12
- 239000000976 ink Substances 0.000 description 71
- 239000003921 oil Substances 0.000 description 63
- 235000019198 oils Nutrition 0.000 description 63
- 239000002904 solvent Substances 0.000 description 33
- 229920005989 resin Polymers 0.000 description 30
- 239000011347 resin Substances 0.000 description 30
- 239000000049 pigment Substances 0.000 description 26
- 238000001035 drying Methods 0.000 description 20
- -1 sorbitan fatty acid esters Chemical class 0.000 description 20
- 235000014113 dietary fatty acids Nutrition 0.000 description 11
- 239000000194 fatty acid Substances 0.000 description 11
- 229930195729 fatty acid Natural products 0.000 description 11
- 230000003204 osmotic effect Effects 0.000 description 11
- 239000004606 Fillers/Extenders Substances 0.000 description 10
- 239000003086 colorant Substances 0.000 description 6
- 239000000975 dye Substances 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000010306 acid treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 239000007762 w/o emulsion Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000003349 gelling agent Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 235000012424 soybean oil Nutrition 0.000 description 3
- 239000003549 soybean oil Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- WNWHHMBRJJOGFJ-UHFFFAOYSA-N 16-methylheptadecan-1-ol Chemical compound CC(C)CCCCCCCCCCCCCCCO WNWHHMBRJJOGFJ-UHFFFAOYSA-N 0.000 description 2
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000004359 castor oil Substances 0.000 description 2
- 235000019438 castor oil Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000003112 inhibitor Substances 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
- YYVJAABUJYRQJO-UHFFFAOYSA-N isomyristic acid Chemical compound CC(C)CCCCCCCCCCC(O)=O YYVJAABUJYRQJO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- UQDUPQYQJKYHQI-UHFFFAOYSA-N methyl laurate Chemical compound CCCCCCCCCCCC(=O)OC UQDUPQYQJKYHQI-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012454 non-polar solvent Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000002798 polar solvent Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000003784 tall oil Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- CUNWUEBNSZSNRX-RKGWDQTMSA-N (2r,3r,4r,5s)-hexane-1,2,3,4,5,6-hexol;(z)-octadec-9-enoic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O CUNWUEBNSZSNRX-RKGWDQTMSA-N 0.000 description 1
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- 239000001149 (9Z,12Z)-octadeca-9,12-dienoate Substances 0.000 description 1
- WTTJVINHCBCLGX-UHFFFAOYSA-N (9trans,12cis)-methyl linoleate Natural products CCCCCC=CCC=CCCCCCCCC(=O)OC WTTJVINHCBCLGX-UHFFFAOYSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- QMGJMGFZLXYHCR-UHFFFAOYSA-N 1-(2-butoxypropoxy)butane Chemical compound CCCCOCC(C)OCCCC QMGJMGFZLXYHCR-UHFFFAOYSA-N 0.000 description 1
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- ZONJATNKKGGVSU-UHFFFAOYSA-N 14-methylpentadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCC(O)=O ZONJATNKKGGVSU-UHFFFAOYSA-N 0.000 description 1
- SAMYFBLRCRWESN-UHFFFAOYSA-N 16-methylheptadecyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCCCCCCCCCCCCCCCC(C)C SAMYFBLRCRWESN-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- LNJCGNRKWOHFFV-UHFFFAOYSA-N 3-(2-hydroxyethylsulfanyl)propanenitrile Chemical compound OCCSCCC#N LNJCGNRKWOHFFV-UHFFFAOYSA-N 0.000 description 1
- HBTAOSGHCXUEKI-UHFFFAOYSA-N 4-chloro-n,n-dimethyl-3-nitrobenzenesulfonamide Chemical compound CN(C)S(=O)(=O)C1=CC=C(Cl)C([N+]([O-])=O)=C1 HBTAOSGHCXUEKI-UHFFFAOYSA-N 0.000 description 1
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 1
- AMUTYVGRCVFCCD-UHFFFAOYSA-N 5,6-diaminopyridine-3-carboxylic acid Chemical compound NC1=CC(C(O)=O)=CN=C1N AMUTYVGRCVFCCD-UHFFFAOYSA-N 0.000 description 1
- AMEMLELAMQEAIA-UHFFFAOYSA-N 6-(tert-butyl)thieno[3,2-d]pyrimidin-4(3H)-one Chemical compound N1C=NC(=O)C2=C1C=C(C(C)(C)C)S2 AMEMLELAMQEAIA-UHFFFAOYSA-N 0.000 description 1
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical compound CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 description 1
- CGLVZFOCZLHKOH-UHFFFAOYSA-N 8,18-dichloro-5,15-diethyl-5,15-dihydrodiindolo(3,2-b:3',2'-m)triphenodioxazine Chemical compound CCN1C2=CC=CC=C2C2=C1C=C1OC3=C(Cl)C4=NC(C=C5C6=CC=CC=C6N(C5=C5)CC)=C5OC4=C(Cl)C3=NC1=C2 CGLVZFOCZLHKOH-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LVGKNOAMLMIIKO-UHFFFAOYSA-N Elaidinsaeure-aethylester Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC LVGKNOAMLMIIKO-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- PKIXXJPMNDDDOS-UHFFFAOYSA-N Methyl linoleate Natural products CCCCC=CCCC=CCCCCCCCC(=O)OC PKIXXJPMNDDDOS-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 235000019774 Rice Bran oil Nutrition 0.000 description 1
- 235000019485 Safflower oil Nutrition 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- NCHJGQKLPRTMAO-XWVZOOPGSA-N [(2R)-2-[(2R,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NCHJGQKLPRTMAO-XWVZOOPGSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- PHMQYKDOTWAOBI-UHFFFAOYSA-N decanoic acid;propane-1,2-diol Chemical compound CC(O)CO.CCCCCCCCCC(O)=O PHMQYKDOTWAOBI-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229940031578 diisopropyl adipate Drugs 0.000 description 1
- 229940031569 diisopropyl sebacate Drugs 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
- 235000019797 dipotassium phosphate Nutrition 0.000 description 1
- XFKBBSZEQRFVSL-UHFFFAOYSA-N dipropan-2-yl decanedioate Chemical compound CC(C)OC(=O)CCCCCCCCC(=O)OC(C)C XFKBBSZEQRFVSL-UHFFFAOYSA-N 0.000 description 1
- 239000000986 disperse dye Substances 0.000 description 1
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- FMMOOAYVCKXGMF-MURFETPASA-N ethyl linoleate Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(=O)OCC FMMOOAYVCKXGMF-MURFETPASA-N 0.000 description 1
- 229940031016 ethyl linoleate Drugs 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- LVGKNOAMLMIIKO-QXMHVHEDSA-N ethyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC LVGKNOAMLMIIKO-QXMHVHEDSA-N 0.000 description 1
- 229940093471 ethyl oleate Drugs 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 description 1
- 229940075507 glyceryl monostearate Drugs 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- PXZQEOJJUGGUIB-UHFFFAOYSA-N isoindolin-1-one Chemical compound C1=CC=C2C(=O)NCC2=C1 PXZQEOJJUGGUIB-UHFFFAOYSA-N 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 229940093629 isopropyl isostearate Drugs 0.000 description 1
- 229940033357 isopropyl laurate Drugs 0.000 description 1
- 229940074928 isopropyl myristate Drugs 0.000 description 1
- XUGNVMKQXJXZCD-UHFFFAOYSA-N isopropyl palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC(C)C XUGNVMKQXJXZCD-UHFFFAOYSA-N 0.000 description 1
- 229940075495 isopropyl palmitate Drugs 0.000 description 1
- 229940053080 isosol Drugs 0.000 description 1
- 229940113915 isostearyl palmitate Drugs 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229940049918 linoleate Drugs 0.000 description 1
- FMMOOAYVCKXGMF-UHFFFAOYSA-N linoleic acid ethyl ester Natural products CCCCCC=CCC=CCCCCCCCC(=O)OCC FMMOOAYVCKXGMF-UHFFFAOYSA-N 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 description 1
- 229940073769 methyl oleate Drugs 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 1
- WIBFFTLQMKKBLZ-SEYXRHQNSA-N n-butyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCCC WIBFFTLQMKKBLZ-SEYXRHQNSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- UPHWVVKYDQHTCF-UHFFFAOYSA-N octadecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCCCCCCCN UPHWVVKYDQHTCF-UHFFFAOYSA-N 0.000 description 1
- KSCKTBJJRVPGKM-UHFFFAOYSA-N octan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCCCCCC[O-].CCCCCCCC[O-].CCCCCCCC[O-].CCCCCCCC[O-] KSCKTBJJRVPGKM-UHFFFAOYSA-N 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- AVTYONGGKAJVTE-OLXYHTOASA-L potassium L-tartrate Chemical compound [K+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O AVTYONGGKAJVTE-OLXYHTOASA-L 0.000 description 1
- 239000001472 potassium tartrate Substances 0.000 description 1
- 229940111695 potassium tartrate Drugs 0.000 description 1
- 235000011005 potassium tartrates Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- PZQSQRCNMZGWFT-QXMHVHEDSA-N propan-2-yl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC(C)C PZQSQRCNMZGWFT-QXMHVHEDSA-N 0.000 description 1
- NEOZOXKVMDBOSG-UHFFFAOYSA-N propan-2-yl 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OC(C)C NEOZOXKVMDBOSG-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000008165 rice bran oil Substances 0.000 description 1
- 235000005713 safflower oil Nutrition 0.000 description 1
- 239000003813 safflower oil Substances 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 229940100515 sorbitan Drugs 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 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
- 239000001570 sorbitan monopalmitate Substances 0.000 description 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 1
- 229940031953 sorbitan monopalmitate Drugs 0.000 description 1
- 229960005078 sorbitan sesquioleate Drugs 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
本発明は、孔版印刷用エマルションインクに関するものである。 The present invention relates to an emulsion ink for stencil printing.
孔版印刷は版の作製が容易なため幅広い分野で利用されており、孔版印刷に使用される孔版印刷用エマルションインクは、紙などの被印刷物に浸透して乾燥する浸透乾燥方式のインクである。孔版印刷機においては、孔版印刷の原理上ある程度の粘性を有するエマルションインクが使用されるため、用紙転写後の浸透乾燥にある程度の時間を要する。このため、短時間で両面印刷を行う場合は、裏面印刷時に表面に印刷されたインクがプレスロールや搬送ロール等に転写し、ロールに付着したインクが用紙に転写し汚れが発生するという問題がある。 Stencil printing is used in a wide range of fields because it is easy to produce a plate. The emulsion ink for stencil printing used in stencil printing is an ink of a permeation drying method that permeates into a printing material such as paper and dries. In a stencil printing machine, emulsion ink having a certain degree of viscosity is used on the principle of stencil printing, and therefore, a certain amount of time is required for osmotic drying after paper transfer. Therefore, when performing double-sided printing in a short time, there is a problem that ink printed on the front surface is transferred to a press roll, a transport roll, etc. during backside printing, and the ink attached to the roll is transferred to the paper and causes stains. is there.
また、印刷機を長期間放置しておくと、ドラム外周のスクリーン/マスター部に残存しているインクが増粘して印面が復帰しないという問題がある(いわゆる目詰まり)。さらに、長期放置時には、印刷ドラム内のインクが劣化し、インク中に保持されていた溶剤成分(油)が吐き出され、印刷ドラムから溶剤が染み出し印刷機内を汚すという問題がある(いわゆる油の吐出し)。 Further, if the printing press is left for a long period of time, there is a problem that the ink remaining on the screen / master portion on the outer periphery of the drum thickens and the printing surface does not return (so-called clogging). Furthermore, when left for a long time, the ink in the printing drum deteriorates, the solvent component (oil) retained in the ink is discharged, the solvent oozes out from the printing drum, and the inside of the printing machine is contaminated (so-called oil Discharge).
上記の浸透乾燥性の問題に対して、出願人は水相の表面張力を低くすることで浸透性を向上させることが可能なエマルションインクを提案している(特許文献1)。しかし、水相の表面張力が低いために、保存安定性については改良の余地が残っている。また、目詰まりの問題に対しては、着色剤として染料を含むインクを提案しているが(特許文献2)、染料を用いているために、裏抜けが発生しやすくなるという問題がある。さらに、油の吐出しの問題に対しては、体質顔料を添加するインクを提案しているが(特許文献3)、体質顔料の添加によって浸透乾燥性をある程度犠牲にせざるを得ない。 In response to the above problem of penetrability, the applicant has proposed an emulsion ink that can improve the penetrability by lowering the surface tension of the aqueous phase (Patent Document 1). However, since the surface tension of the aqueous phase is low, there remains room for improvement in terms of storage stability. In addition, for the problem of clogging, an ink containing a dye as a colorant has been proposed (Patent Document 2). However, since the dye is used, there is a problem that the show-through easily occurs. Furthermore, in order to solve the problem of oil ejection, an ink to which extender pigments are added has been proposed (Patent Document 3), but the penetration and drying properties must be sacrificed to some extent by the addition of extender pigments.
ところで、従来の孔版印刷用エマルションインクには、インクの保存安定性の向上やインクの紙への定着性を良好にする等の目的で樹脂が添加されている。孔版印刷用インクに添加する樹脂としては、20,000〜150,000(特許文献4)、40,000〜160,000(特許文献5)、10,000以上(特許文献6)等の高分子量樹脂を配合したインクが多い。一方、特許文献7には低分子量樹脂を含んだ3,000〜150,000のゲル化剤を含む樹脂が提案されている。 By the way, a resin is added to the conventional emulsion ink for stencil printing for the purpose of improving the storage stability of the ink and improving the fixing property of the ink to paper. The resin added to the ink for stencil printing has a high molecular weight such as 20,000 to 150,000 (Patent Document 4), 40,000 to 160,000 (Patent Document 5), 10,000 or more (Patent Document 6). Many inks contain resin. On the other hand, Patent Document 7 proposes a resin containing a gelling agent of 3,000 to 150,000 containing a low molecular weight resin.
高分子量樹脂を配合したインクは樹脂自体の粘度が高く、かつ樹脂が溶剤を保持し易くなるために油の吐出しは抑制できるものと考えられるが、顔料の流動性が低くなるため浸透乾燥性は悪くなり、また、長期放置時にスクリーン等に残存しているインクの増粘が起こりやすく、目詰まりが発生しやすい。低分子量樹脂を用いれば、浸透乾燥性や目詰まりの問題は解消される可能性はあるものの、溶剤を保持し難くなるために、長期放置時に油を吐出しやすくなる。なお、特許文献7に記載されているようなゲル化剤を含む低分子量樹脂は、ゲル化剤が樹脂の極性基と反応するため、ゲル化剤を含まない樹脂と比較して極性が低下し、結果、顔料分散性が劣るため、高分子量樹脂を配合したインクと同様の問題が生ずる。 Inks containing high molecular weight resins are considered to be able to suppress oil discharge because the resin itself has a high viscosity and the resin easily retains the solvent. In addition, the ink remaining on the screen or the like tends to increase in viscosity when left for a long period of time, and clogging is likely to occur. If a low molecular weight resin is used, the problems of osmotic drying and clogging may be solved, but it becomes difficult to retain the solvent, so that oil can be easily discharged when left for a long period of time. In addition, the low molecular weight resin containing the gelling agent as described in Patent Document 7 reacts with the polar group of the resin, so that the polarity is lower than that of the resin not containing the gelling agent. As a result, since the pigment dispersibility is inferior, the same problem as that of the ink containing the high molecular weight resin occurs.
上記のように、孔版印刷用エマルションインクにおける浸透乾燥性、目詰まり、油の吐出しといった問題は、一方の問題を解決するためには他方の問題をある程度犠牲にした上で成り立つという関係にあり、これらの問題を同時に解決するには至っていないのが現状である。本発明者が鋭意検討を重ねた結果、浸透乾燥性、目詰まりおよび油の吐出しといった問題を同時に解決することが可能なインクを見出し本発明に至った。すなわち、本発明は浸透乾燥性がよく、長期保存時における目詰りや油の吐出しを抑制することが可能な孔版印刷用エマルションインクを提供することを目的とするものである。 As described above, problems such as osmotic drying, clogging, and oil discharge in emulsion inks for stencil printing have the relationship that, in order to solve one problem, the other problem is sacrificed to some extent. At present, these problems have not been solved at the same time. As a result of extensive studies by the inventor, the present inventors have found an ink capable of simultaneously solving problems such as penetrability, clogging and oil discharge. That is, an object of the present invention is to provide an emulsion ink for stencil printing that has good osmotic drying properties and can suppress clogging and oil discharge during long-term storage.
第一の態様として、本発明の孔版印刷用エマルションインクは、油相および水相からなる孔版印刷用エマルションインクにおいて、前記油相に平均分子量が5,000未満のアルキド樹脂と平均分子量が10,000以上のアルキド樹脂とを含むことを特徴とするものである。 As a first aspect, the stencil printing emulsion ink of the present invention is a stencil printing emulsion ink comprising an oil phase and an aqueous phase, wherein the oil phase has an alkyd resin having an average molecular weight of less than 5,000 and an average molecular weight of 10, And 000 or more alkyd resins.
第二の態様として、本発明の孔版印刷用エマルションインクは、油相および水相からなる孔版印刷用エマルションインクにおいて、前記油相に平均分子量が5,000未満のアルキド樹脂と炭酸カルシウムとを含むことを特徴とするものである。 As a second aspect, the stencil printing emulsion ink of the present invention is a stencil printing emulsion ink comprising an oil phase and an aqueous phase, and the oil phase contains an alkyd resin having an average molecular weight of less than 5,000 and calcium carbonate. It is characterized by this.
第三の態様として、本発明の孔版印刷用エマルションインクは、油相および水相からなる孔版印刷用エマルションインクにおいて、前記油相に平均分子量が5,000未満のアルキド樹脂とpH7〜8のカーボンブラックとを含むことを特徴とするものである。 As a third aspect, the stencil printing emulsion ink of the present invention is a stencil printing emulsion ink comprising an oil phase and an aqueous phase, wherein the oil phase has an alkyd resin having an average molecular weight of less than 5,000 and carbon having a pH of 7 to 8. It is characterized by including black.
本発明の孔版印刷用エマルションインクは、油相に平均分子量が5,000未満のアルキド樹脂を必須の成分として含み、この平均分子量が5,000未満のアルキド樹脂によって浸透乾燥性が向上するとともに、長期放置時の目詰まりが抑制されると考えられる。一方で、第一の態様の孔版印刷用エマルションインクは、さらに平均分子量が10,000以上のアルキド樹脂を含み、第二の態様の孔版印刷用エマルションインクは炭酸カルシウムを含み、第三の態様の孔版印刷用エマルションインクはpH7〜8のカーボンブラックを含み、これらそれぞれの含有によって、油の吐出しを改善することが可能となる。結果、本発明によれば、孔版印刷用エマルションインクを、浸透乾燥性がよく、長期保存時における目詰りや油の吐出しを抑制することが可能なものとすることができる。 The emulsion ink for stencil printing of the present invention contains an alkyd resin having an average molecular weight of less than 5,000 as an essential component in the oil phase, and the alkyd resin having an average molecular weight of less than 5,000 improves the osmotic drying property, It is thought that clogging when left for a long time is suppressed. On the other hand, the emulsion ink for stencil printing of the first aspect further contains an alkyd resin having an average molecular weight of 10,000 or more, the emulsion ink for stencil printing of the second aspect contains calcium carbonate, The emulsion ink for stencil printing contains carbon black having a pH of 7 to 8, and the inclusion of each of them makes it possible to improve oil discharge. As a result, according to the present invention, the emulsion ink for stencil printing has good penetrability and can suppress clogging and oil discharge during long-term storage.
以下、本発明の孔版印刷用エマルションインクを詳細に説明する。本発明の孔版印刷用エマルションインクは、第一の態様として、油相に平均分子量が5,000未満のアルキド樹脂と平均分子量が10,000以上のアルキド樹脂とを含むことを特徴とする。第二の態様として、油相に平均分子量が5,000未満のアルキド樹脂と炭酸カルシウムとを含むことを特徴とする。第三の態様として、油相に平均分子量が5,000未満のアルキド樹脂とpH7〜8のカーボンブラックとを含むことを特徴とする。 Hereinafter, the emulsion ink for stencil printing of the present invention will be described in detail. The emulsion ink for stencil printing of the present invention, as a first aspect, is characterized in that the oil phase contains an alkyd resin having an average molecular weight of less than 5,000 and an alkyd resin having an average molecular weight of 10,000 or more. As a second aspect, the oil phase includes an alkyd resin having an average molecular weight of less than 5,000 and calcium carbonate. As a third aspect, the oil phase includes an alkyd resin having an average molecular weight of less than 5,000 and carbon black having a pH of 7 to 8.
上記第一〜第三の態様における孔版印刷用エマルションインクは、油相に平均分子量が5,000未満のアルキド樹脂(以下、低分子量アルキド樹脂をもいう)を含む点において共通する。ここで、本発明における平均分子量は質量平均分子量であり、ゲル浸透クロマトグラフィー法(標準ポリスチレン換算)により測定されたものを意味する。低分子量アルキド樹脂の平均分子量は500以上5,000未満が好ましく、1,000以上5,000未満がより好ましく、さらには1,500以上3,000未満がより好ましい。平均分子量が5,000より大きい場合は浸透乾燥性が改善されにくく転写汚れが発生しやすくなる。低分子量アルキド樹脂の含有量は、インク全量に対して0.5質量%〜20質量%であることが好ましく、1質量%〜15質量%であることがより好ましい。 The emulsion inks for stencil printing in the first to third aspects are common in that the oil phase contains an alkyd resin having an average molecular weight of less than 5,000 (hereinafter also referred to as a low molecular weight alkyd resin). Here, the average molecular weight in this invention is a mass average molecular weight, and means what was measured by the gel permeation chromatography method (standard polystyrene conversion). The average molecular weight of the low molecular weight alkyd resin is preferably from 500 to less than 5,000, more preferably from 1,000 to less than 5,000, and even more preferably from 1,500 to less than 3,000. When the average molecular weight is greater than 5,000, the penetrability is difficult to improve and transfer stains are likely to occur. The content of the low molecular weight alkyd resin is preferably 0.5% by mass to 20% by mass, and more preferably 1% by mass to 15% by mass with respect to the total amount of the ink.
アルキド樹脂は他の樹脂に比べて極性が高いため、顔料との濡れ性に優れる。とりわけ、低分子量アルキド樹脂は高分子量樹脂と比較して顔料分散性が高い。これは、低分子量であるほど顔料への吸着速度が速く、かつ樹脂自体の粘度が低いために顔料分散体の流動性が高くなることによるものであるが、これによって浸透乾燥性が向上すると考える。また、顔料分散性に優れるために、長期放置時のドラム外周のスクリーン/マスター部に残存しているインクの増粘が発生し難く、長期放置時の目詰まりが抑制されると考えられる。 Since the alkyd resin has higher polarity than other resins, it has excellent wettability with the pigment. In particular, the low molecular weight alkyd resin has higher pigment dispersibility than the high molecular weight resin. This is due to the fact that the lower the molecular weight, the faster the adsorption rate to the pigment, and the lower the viscosity of the resin itself, and the higher the fluidity of the pigment dispersion. . In addition, since the pigment dispersibility is excellent, it is difficult to increase the viscosity of the ink remaining on the screen / master portion on the outer periphery of the drum when left standing for a long time, and clogging when left standing for a long time is considered to be suppressed.
一方で、低分子量アルキド樹脂は溶剤を保持し難くなるために、長期放置時に、油を吐出しやすくなる。このため、第一の態様の孔版印刷用エマルションインクにおいては、油相に平均分子量が10,000以上のアルキド樹脂(以下、高分子量アルキド樹脂ともいう)を、第二の態様の孔版印刷用エマルションインクにおいては、油相に炭酸カルシウムを、第三の態様の孔版印刷用エマルションインクにおいては、pH7〜8のカーボンブラックを含有させる。これによって、浸透乾燥性を悪化させることなく、また目詰まりを起こさせることなく、油の吐出しを改善することが可能となる。 On the other hand, the low molecular weight alkyd resin is difficult to retain the solvent, and therefore it is easy to discharge oil when left for a long time. Therefore, in the emulsion ink for stencil printing of the first aspect, an alkyd resin having an average molecular weight of 10,000 or more (hereinafter also referred to as high molecular weight alkyd resin) is used in the oil phase, and the emulsion for stencil printing of the second aspect. In the ink, calcium carbonate is contained in the oil phase, and in the emulsion ink for stencil printing of the third aspect, carbon black having a pH of 7 to 8 is contained. This makes it possible to improve the oil discharge without deteriorating the osmotic drying property and without causing clogging.
油相に高分子量アルキド樹脂を含む第一の態様の孔版印刷用エマルションインクにおいては、高分子量アルキド樹脂によって油の吐出しが改善され、一方で、低分子量アルキド樹脂によって浸透乾燥性の向上と目詰まりの抑制が確保されるために、浸透乾燥性の向上と目詰まりの抑制、油の吐出し改善の両立が可能となる。高分子量アルキド樹脂の平均分子量は10,000以上100,000未満がより好ましく、さらには10,000以上50,000未満がより好ましく、10,000以上25,000未満がさらに好ましい。平均分子量が10,000よりも小さい場合、油の吐き出し改善効果が得られにくく、平均分子量が100,000より大きい場合、浸透乾燥性を悪くさせ転写汚れが発生しやすくなる。 In the emulsion ink for stencil printing of the first embodiment, which contains a high molecular weight alkyd resin in the oil phase, the oil discharge is improved by the high molecular weight alkyd resin, while the low molecular weight alkyd resin improves the osmotic drying property. Since suppression of clogging is ensured, it is possible to achieve both improved penetration drying, suppression of clogging, and improved oil discharge. The average molecular weight of the high molecular weight alkyd resin is more preferably from 10,000 to less than 100,000, further preferably from 10,000 to less than 50,000, and further preferably from 10,000 to less than 25,000. When the average molecular weight is less than 10,000, the effect of improving oil discharge is difficult to obtain, and when the average molecular weight is greater than 100,000, the penetrability is deteriorated and transfer stains are likely to occur.
低分子量アルキド樹脂と高分子量アルキド樹脂の割合は、用いる低分子量アルキド樹脂と高分子量アルキド樹脂の平均分子量や、他に樹脂を含むか否か、含む場合の樹脂の種類によっても異なるため一概には言えないが、例えば、低分子量アルキド樹脂と高分子量アルキド樹脂以外に樹脂を含まない場合、その比は6:4〜1:9(低分子量アルキド樹脂の質量:高分子量アルキド樹脂の質量)の範囲であることがより好ましい。 The ratio between the low molecular weight alkyd resin and the high molecular weight alkyd resin is generally different depending on the average molecular weight of the low molecular weight alkyd resin and high molecular weight alkyd resin used, whether or not the resin is included, and the type of resin when it is included. Although it cannot be said, for example, when the resin is not included other than the low molecular weight alkyd resin and the high molecular weight alkyd resin, the ratio is in the range of 6: 4 to 1: 9 (mass of low molecular weight alkyd resin: mass of high molecular weight alkyd resin). It is more preferable that
油相に炭酸カルシウムを含む第二の態様の孔版印刷用エマルションインクにおいては、炭酸カルシウムによって油の吐出しが改善され、低分子量アルキド樹脂によって浸透乾燥性の向上と目詰まりの抑制が確保されるために、浸透乾燥性の向上と目詰まりの抑制、油の吐出し改善の両立が可能となる。炭酸カルシウムはベントナイトやタルク等の体質顔料と比較して、油相の増粘効果が低いために浸透乾燥性が悪化しなかったと考えられる。なお、炭酸カルシウムそのものは親水性であり、エマルションの安定性の観点から、表面に脂肪酸処理やロジン酸処理を施した炭酸カルシウムを用いることが好ましい。脂肪酸処理やロジン酸処理を施した炭酸カルシウムは公知の方法により得ることができ、市販のものを使用してもよい。 In the emulsion ink for stencil printing of the second aspect containing calcium carbonate in the oil phase, the oil ejection is improved by the calcium carbonate, and the improvement of the osmotic drying property and the suppression of clogging are ensured by the low molecular weight alkyd resin. Therefore, it is possible to improve both the penetrability and drying, suppress clogging, and improve oil discharge. It is considered that calcium carbonate did not deteriorate the osmotic drying property because the thickening effect of the oil phase was lower than that of extender pigments such as bentonite and talc. In addition, calcium carbonate itself is hydrophilic, and from the viewpoint of emulsion stability, it is preferable to use calcium carbonate whose surface has been subjected to fatty acid treatment or rosin acid treatment. Calcium carbonate subjected to fatty acid treatment or rosin acid treatment can be obtained by a known method, and commercially available products may be used.
油相に中性カーボンブラックを含む第三の態様の孔版印刷用エマルションインクにおいては、中性カーボンブラックによって油の吐出しが改善され、低分子量アルキド樹脂によって浸透乾燥性の向上と目詰まりの抑制が確保されるために、浸透乾燥性の向上と目詰まりの抑制、油の吐出し改善の両立が可能となる。中性カーボンブラックは酸性カーボンブラックと比較して、顔料分散体の流動性を若干低下させ、特に低シェアにおける粘度を顕著に上昇させるため、油の吐出しが抑制されるものと考えられる。 In the emulsion ink for stencil printing of the third aspect containing neutral carbon black in the oil phase, the oil discharge is improved by the neutral carbon black, and the penetration and drying properties are improved and the clogging is suppressed by the low molecular weight alkyd resin. Therefore, it is possible to achieve both improvement of penetration drying property, suppression of clogging, and improvement of oil discharge. Since neutral carbon black slightly reduces the fluidity of the pigment dispersion and significantly increases the viscosity at a low share, compared with acidic carbon black, it is considered that oil discharge is suppressed.
上記第一〜第三の態様における孔版印刷用エマルションインクの油相は、それぞれの必須成分以外に、浸透乾燥性の向上と目詰まりの抑制、油の吐出し改善の両立という効果を損なわない範囲において、着色剤、界面活性剤(乳化剤)、低分子量および高分子量アルキド樹脂以外の樹脂成分、溶剤(油)成分、顔料分散剤等から構成される。但し、油相に高分子量アルキド樹脂を含む第一の態様の孔版印刷用エマルションインクにおいては、高分子量アルキド樹脂以外の高分子量樹脂成分は含まない方が好ましい。また、油相に炭酸カルシウムを含む第二の態様の孔版印刷用エマルションインクの場合には、炭酸カルシウム以外の体質顔料は含まないことが好ましい。油相の割合はインク全質量に対して20質量%〜70質量%であることが好ましく、25質量%〜55質量%であることがより好ましい。 The oil phase of the emulsion ink for stencil printing in the above first to third aspects, in addition to the respective essential components, is a range that does not impair the effects of improving penetrability and suppressing clogging and improving oil discharge. 1 comprises a colorant, a surfactant (emulsifier), a resin component other than low and high molecular weight alkyd resins, a solvent (oil) component, a pigment dispersant and the like. However, it is preferable that the emulsion ink for stencil printing of the first embodiment containing a high molecular weight alkyd resin in the oil phase does not contain a high molecular weight resin component other than the high molecular weight alkyd resin. Further, in the case of the emulsion ink for stencil printing of the second embodiment containing calcium carbonate in the oil phase, it is preferable not to contain extender pigments other than calcium carbonate. The ratio of the oil phase is preferably 20% by mass to 70% by mass and more preferably 25% by mass to 55% by mass with respect to the total mass of the ink.
着色剤としては、不溶性アゾ顔料、溶性アゾ顔料、フタロシアニンブルー、染色レーキ、イソインドリノン、キナクリドン、ジオキサジンバイオレット、ペリノン・ペリレンのような有機顔料;カーボンブラック、二酸化チタン等の無機顔料;アゾ系、アントラキノン系、アジン系等の油溶性染料;各種水溶性染料、分散染料等が挙げられる。これらの着色剤は、目的とする色相を実現するため、単独で、または2種以上を混合して用いることができ、顔料と染料とを組み合わせてもよい。その配合量も、適宜設定すればよいが、一般に、インクの総質量に対して20質量%以下であることが好ましく、さらに好ましくは3質量%〜10質量%の範囲で用いられる。 Examples of the colorant include insoluble azo pigments, soluble azo pigments, phthalocyanine blue, dye lake, isoindolinone, quinacridone, dioxazine violet, organic pigments such as perinone / perylene; inorganic pigments such as carbon black and titanium dioxide; azo type Oil-soluble dyes such as anthraquinone and azine; various water-soluble dyes and disperse dyes. These colorants can be used alone or in admixture of two or more in order to achieve the desired hue, and pigments and dyes may be combined. The blending amount may be set as appropriate, but in general, it is preferably 20% by mass or less, more preferably 3% by mass to 10% by mass with respect to the total mass of the ink.
また、印刷物の画質を向上させるために、インク中に体質顔料を含有させることができる。体質顔料としては、たとえば、シリカ、白土、タルク、クレー、珪藻土、炭酸カルシウム、炭酸バリウム、硫酸バリウム、アルミナホワイト、カオリン、マイカ、水酸化アルミニウムを用いることができ、これらの2種以上を併用してもよい。体質顔料は、多量に含有させると被印刷体への着色剤の定着を阻害したり、印刷機の非使用後の印刷性能に支障をきたす恐れがあるため、10質量%以下の範囲で含有させることが好ましく、より好ましくは5質量%以下である。 Further, in order to improve the image quality of the printed matter, an extender pigment can be contained in the ink. Examples of extender pigments that can be used include silica, white clay, talc, clay, diatomaceous earth, calcium carbonate, barium carbonate, barium sulfate, alumina white, kaolin, mica, and aluminum hydroxide. May be. If the extender pigment is contained in a large amount, it may interfere with fixing of the colorant to the printing medium or may impair the printing performance after the printer is not used. Preferably, it is 5 mass% or less.
界面活性剤は油中水型エマルションを構成するために用いられ、アニオン界面活性剤、カチオン界面活性剤、両性界面活性剤、非イオン界面活性剤のいずれを用いてもよい。このうち、油中水型エマルションの乳化性や保存安定性の観点から、非イオン界面活性剤を用いることが好ましい。 The surfactant is used to constitute a water-in-oil emulsion, and any of an anionic surfactant, a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant may be used. Among these, it is preferable to use a nonionic surfactant from the viewpoint of the emulsifiability and storage stability of the water-in-oil emulsion.
具体的には、ソルビタンモノラウレート、ソルビタンモノパルミテート、ソルビタンモノオレエート、ソルビタンセスキオレエート、ソルビタンモノイソステアレート等のソルビタン脂肪酸エステル、グリセリルモノステアレート、ヘキサグリセリルテトラオレエート、デカグリセリルデカオレエート、ヘキサグリセリルペンタオレエート等の(ポリ)グリセリン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレングリセリン脂肪酸エステル、ポリオキシエチレンソルビット脂肪酸エステル、プロピレングリコール脂肪酸エステル、(ポリ)エチレングリコール脂肪酸エステル、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンポリオキシプロピレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ポリオキシエチレン(硬化)ヒマシ油等を好ましく挙げることができる。上記界面活性剤は、単独で用いてもよいし、二種類以上を適宜組み合わせて用いることもできる。 Specifically, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monooleate, sorbitan sesquioleate, sorbitan fatty acid esters such as sorbitan monoisostearate, glyceryl monostearate, hexaglyceryl tetraoleate, decaglyceryl deca (Poly) glycerin fatty acid esters such as oleate and hexaglyceryl pentaoleate, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbite fatty acid ester, propylene glycol fatty acid ester, (poly) ethylene glycol fatty acid ester , Polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alcohol Phenyl ethers, polyoxyethylene (hardened) can be exemplified preferably castor oil and the like. The said surfactant may be used independently and can also be used in combination of 2 or more types as appropriate.
樹脂はインクに粘度を付与し、エマルションの安定性を向上させるもので、油相に溶解するものが用いられる。樹脂を含ませることにより、カーボンブラック、その他の顔料や体質顔料の顔料分散性、紙への定着性、転写汚れの抑制を向上させることができる。樹脂としては、たとえば、ロジン、ギルソナイト、ロジンエステル、マレイン酸樹脂、フェノール樹脂、アルキド樹脂、石油樹脂、アクリル樹脂、アミノ樹脂、ウレタン樹脂、セルロース樹脂、天然ゴム誘導体樹脂等を好ましく用いることができ、アルキド樹脂、フェノール樹脂をより好ましく用いることができる。また、アルキド樹脂またはロジン変性樹脂とアルミニウムキレート化合物またはアルミニウムアルコラートとの反応生成物も、好ましく用いることができる。樹脂の含有量は、インク全質量に対して1〜20質量%であることが好ましく、3〜15質量%であることがより好ましい。 Resins impart viscosity to the ink and improve the stability of the emulsion, and those that dissolve in the oil phase are used. By including a resin, it is possible to improve the pigment dispersibility of carbon black, other pigments and extender pigments, fixability to paper, and suppression of transfer stains. As the resin, for example, rosin, gilsonite, rosin ester, maleic acid resin, phenol resin, alkyd resin, petroleum resin, acrylic resin, amino resin, urethane resin, cellulose resin, natural rubber derivative resin and the like can be preferably used. Alkyd resins and phenol resins can be used more preferably. A reaction product of an alkyd resin or rosin-modified resin with an aluminum chelate compound or aluminum alcoholate can also be preferably used. The content of the resin is preferably 1 to 20% by mass, and more preferably 3 to 15% by mass with respect to the total mass of the ink.
主溶剤(ここで主溶剤とは全溶剤質量の半分以上を占める溶剤を意味する)は、インクを大気中に放置した場合でも揮発しにくいことが必要であることから、その沸点が240℃以上であるものが好ましく、250℃以上のものであることがより好ましい。なお、放置時の水相の揮発によるインク粘度低下を補うために、油相に沸点が240℃以下の溶剤を主溶剤以外に添加することもできる。溶剤の種類は特に限定されず、非極性溶剤及び極性溶剤のいずれも使用することができる。例えば、非極性溶剤として炭化水素溶剤等、極性溶剤として植物油、エステル溶剤、アルコール溶剤、高級脂肪酸溶剤、エーテル溶剤等を使用することができる。これらは、単独で用いてもよく、2種以上を混合して用いてもよい。2種以上を混合して使用する場合には、混合液は単一の連続する相を形成する必要がある。 The main solvent (the main solvent here means a solvent that occupies more than half of the total solvent mass) must have a boiling point of 240 ° C. or higher because it is necessary for the ink to hardly volatilize even when left in the air. Is preferable, and it is more preferable that it is 250 degreeC or more. In addition, in order to compensate for a decrease in ink viscosity due to volatilization of the aqueous phase during standing, a solvent having a boiling point of 240 ° C. or lower can be added to the oil phase in addition to the main solvent. The kind of solvent is not specifically limited, Both a nonpolar solvent and a polar solvent can be used. For example, a hydrocarbon solvent or the like can be used as the nonpolar solvent, and a vegetable oil, an ester solvent, an alcohol solvent, a higher fatty acid solvent, an ether solvent, or the like can be used as the polar solvent. These may be used alone or in combination of two or more. When using 2 or more types mixed, it is necessary for a liquid mixture to form a single continuous phase.
炭化水素溶剤としては、脂肪族炭化水素溶剤、脂環式炭化水素系溶剤、芳香族炭化水素系溶剤等が挙げられる。脂肪族炭化水素溶剤及び脂環式炭化水素系溶剤としては、新日本石油社製「テクリーンN−16、テクリーンN−20、テクリーンN−22、0号ソルベントL、0号ソルベントM、0号ソルベントH、AF−4、AF−5、AF−6、AF−7」(いずれも商品名)、新日本石油化学社製「日石アイソゾール、ナフテゾール」(いずれも商品名)、エクソンモービル社製「IsoparG、IsoparH、IsoparL、IsoparM、ExxolD40、ExxolD80、ExxolD100、ExxolD140、ExxolD140」(いずれも商品名)等が挙げられる。
植物油としては、大豆油、コーン油、なたね油、サフラワー油、ごま油、ひまし油、オリーブ油、やし油、米ぬか油、綿実油、パーム油、パーム核油、あまに油等が挙げられる。
Examples of the hydrocarbon solvent include aliphatic hydrocarbon solvents, alicyclic hydrocarbon solvents, aromatic hydrocarbon solvents, and the like. As the aliphatic hydrocarbon solvent and alicyclic hydrocarbon solvent, “Nippon Oil Co., Ltd.“ Tclean N-16, Tclean N-20, Tclean N-22, No. 0 Solvent L, No. 0 Solvent M, No. 0 Solvent ” "H, AF-4, AF-5, AF-6, AF-7" (all trade names), "Nisseki Isosol, Naphthezol" (all trade names) manufactured by Nippon Petrochemicals, "Exxon Mobil" IsoparG, IsoparH, IsoparL, IsoparM, ExxolD40, ExxolD80, ExxolD100, ExxolD140, ExxolD140 "(all trade names).
Examples of vegetable oils include soybean oil, corn oil, rapeseed oil, safflower oil, sesame oil, castor oil, olive oil, coconut oil, rice bran oil, cottonseed oil, palm oil, palm kernel oil, and linseed oil.
エステル溶剤としては、ラウリル酸メチル、ラウリル酸イソプロピル、ミリスチン酸イソプロピル、パルミチン酸イソプロピル、パルミチン酸イソステアリル、パルミチン酸イソオクチル、オレイン酸メチル、オレイン酸エチル、オレイン酸イソプロピル、オレイン酸ブチル、リノール酸メチル、リノール酸イソブチル、リノール酸エチル、イソステアリン酸イソプロピル、大豆油メチル、大豆油イソブチル、トール油メチル、トール油イソブチル、アジピン酸ジイソプロピル、セバシン酸ジイソプロピル、セバシン酸ジエチル、モノカプリン酸プロピレングリコール、トリ2エチルヘキサン酸トリメチロールプロパン、トリ2エチルヘキサン酸グリセリル等が挙げられる。 Examples of ester solvents include methyl laurate, isopropyl laurate, isopropyl myristate, isopropyl palmitate, isostearyl palmitate, isooctyl palmitate, methyl oleate, ethyl oleate, isopropyl oleate, butyl oleate, methyl linoleate, Isobutyl linoleate, ethyl linoleate, isopropyl isostearate, soybean oil methyl, soybean oil isobutyl, tall oil methyl, tall oil isobutyl, diisopropyl adipate, diisopropyl sebacate, diethyl sebacate, propylene glycol monocaprate, tri-2-ethylhexane Examples include trimethylolpropane acid, glyceryl tri-2-ethylhexanoate, and the like.
アルコール溶剤としては、イソミリスチルアルコール、イソパルミチルアルコール、イソステアリルアルコール、オレイルアルコール等が挙げられる。
高級脂肪酸溶剤としては、イソノナン酸、イソミリスチン酸、イソパルミチン酸、オレイン酸、イソステアリン酸等が挙げられる。
Examples of the alcohol solvent include isomyristyl alcohol, isopalmityl alcohol, isostearyl alcohol, oleyl alcohol and the like.
Examples of the higher fatty acid solvent include isononanoic acid, isomyristic acid, isopalmitic acid, oleic acid, and isostearic acid.
エーテル溶剤としては、ジエチルグリコールモノブチルエーテル、エチレングリコールモノブチルエーテル、プロピレングリコールモノブチルエーテル、プロピレングリコールジブチルエーテル等が挙げられる。
溶剤の含有量は、インク油相質量に対して10質量%〜80質量%であることが好ましく、40質量%〜75質量%であることがより好ましい。
Examples of the ether solvent include diethyl glycol monobutyl ether, ethylene glycol monobutyl ether, propylene glycol monobutyl ether, propylene glycol dibutyl ether and the like.
The content of the solvent is preferably 10% by mass to 80% by mass and more preferably 40% by mass to 75% by mass with respect to the mass of the ink oil phase.
顔料分散剤としては、水酸基含有カルボン酸エステル、長鎖ポリアミノアマイドと高分子量酸エステルの塩、高分子量ポリカルボン酸の塩、長鎖ポリアミノアマイドと極性酸エステルの塩、高分子量不飽和酸エステル、高分子共重合物、変性ポリウレタン、変性ポリアクリレート、ポリエーテルエステル型アニオン系活性剤、ナフタレンスルホン酸ホルマリン縮合物塩、芳香族スルホン酸ホルマリン縮合物塩、ポリオキシエチレンアルキルリン酸エステル、ポリオキシエチレンノニルフェニルエーテル、ポリエステルポリアミン、ステアリルアミンアセテート等を用いることができ、中でも主鎖にポリアミド構造を有し、側鎖にポリエステル構造を有した櫛型のポリマーが好ましい。顔料分散剤の含有量は、インク全質量に対して0質量%〜10質量%であることが好ましく、0.1質量%〜5質量%であることがより好ましい。 Examples of the pigment dispersant include a hydroxyl group-containing carboxylic acid ester, a salt of a long chain polyaminoamide and a high molecular weight acid ester, a salt of a high molecular weight polycarboxylic acid, a salt of a long chain polyaminoamide and a polar acid ester, a high molecular weight unsaturated acid ester, Polymer copolymer, modified polyurethane, modified polyacrylate, polyether ester type anionic activator, naphthalene sulfonic acid formalin condensate salt, aromatic sulfonic acid formalin condensate salt, polyoxyethylene alkyl phosphate ester, polyoxyethylene Nonylphenyl ether, polyester polyamine, stearylamine acetate, and the like can be used. Among them, comb polymers having a polyamide structure in the main chain and a polyester structure in the side chain are preferable. The content of the pigment dispersant is preferably 0% by mass to 10% by mass, and more preferably 0.1% by mass to 5% by mass with respect to the total mass of the ink.
その他、油相にはエマルションの形成及び安定性を阻害しない範囲で、酸化防止剤、流動性を調整する補助剤としてワックス等を主成分としたコンパウンド等を添加することができる。 In addition, an antioxidant, a compound mainly composed of wax or the like as an auxiliary agent for adjusting fluidity can be added to the oil phase as long as the formation and stability of the emulsion are not inhibited.
水相中には、水の他、必要に応じて水蒸発抑制剤(または凍結防止剤)、電解質、pH調整剤、酸化防止剤等を含ませることができる。
水蒸発抑制剤(または凍結防止剤)としては、具体的には、エチレングリコール、プロピレングリコール、ジエチレングリコール、ポリエチレングリコール、グリセリン等の多価アルコール類等の、水溶性有機溶剤等を好ましく挙げることができ、その含有量は、水相全量に対して1〜20質量%であることが好ましく、3〜15質量%であることがより好ましい。
In the aqueous phase, in addition to water, a water evaporation inhibitor (or antifreezing agent), an electrolyte, a pH adjuster, an antioxidant and the like can be included as necessary.
Specific examples of the water evaporation inhibitor (or antifreezing agent) include water-soluble organic solvents such as polyhydric alcohols such as ethylene glycol, propylene glycol, diethylene glycol, polyethylene glycol, and glycerin. The content thereof is preferably 1 to 20% by mass and more preferably 3 to 15% by mass with respect to the total amount of the aqueous phase.
電解質としては、硫酸ナトリウム、硫酸マグネシウム、リン酸水素カリウム、クエン酸ナトリウム、酒石酸カリウム、ホウ酸ナトリウム等が挙げられ、その含有量は、水相全量に対して0.1〜5.0質量%であることが好ましく、0.5〜2.0質量%であることがより好ましい。 Examples of the electrolyte include sodium sulfate, magnesium sulfate, potassium hydrogen phosphate, sodium citrate, potassium tartrate, sodium borate and the like, and the content thereof is 0.1 to 5.0% by mass with respect to the total amount of the aqueous phase. It is preferable that it is 0.5-2.0 mass%.
本発明のインクは、公知の方法で調製することができる。例えば油相は、公知の分散機で顔料を溶剤に分散した後、さらに溶剤で希釈し、その際その他の油相成分を添加して調製することができる。希釈には、それ自体公知の撹拌機を使用することができる。水相は、水相の成分を、撹拌機により水に混合・溶解することにより調製することができる。そして、公知の乳化機を使用し、攪拌下の油相中に水相を滴下することにより、油中水型のエマルションインクを得ることができる。これらの分散、稀釈、乳化等を行うにあたって採用される条件等は、適宜選択することができる。
以下に本発明のインクの実施例を示す。
The ink of the present invention can be prepared by a known method. For example, the oil phase can be prepared by dispersing the pigment in a solvent with a known disperser, further diluting with a solvent, and adding other oil phase components. A known stirrer can be used for dilution. The aqueous phase can be prepared by mixing and dissolving the components of the aqueous phase in water with a stirrer. And a water-in-oil emulsion ink can be obtained by dripping a water phase in the oil phase under stirring using a well-known emulsifier. The conditions employed for carrying out the dispersion, dilution, emulsification and the like can be selected as appropriate.
Examples of the ink of the present invention are shown below.
(インクの調製)
下記表1に示す配合(表に示す数値は質量部である)により、以下の手順に従い、各実施例、比較例のインクを調製した。まず、油相の色材、体質顔料、樹脂、溶剤等を混合し、ロッキングミルで充分に分散した。この油相中に、添加剤を混合した水相混合溶液を徐々に滴下し、ホモジナイザーを用いて乳化を行い、孔版印刷用エマルションインク(油中水型エマルションインク)を得た。
(Preparation of ink)
According to the formulation shown in the following Table 1 (the numerical values shown in the table are parts by mass), inks of Examples and Comparative Examples were prepared according to the following procedure. First, an oil phase colorant, extender pigment, resin, solvent and the like were mixed and sufficiently dispersed with a rocking mill. An aqueous phase mixed solution in which additives were mixed was gradually added dropwise to the oil phase, and emulsification was performed using a homogenizer to obtain an emulsion ink for stencil printing (water-in-oil emulsion ink).
(評価)
(浸透乾燥性)
作製したエマルションインクを用いて、孔版印刷機としてリソグラフ(理想科学工業株式会社登録商標)RZ570(同社製)により印刷を行い、印刷物を得た。この印刷物の印刷3分後に裏面印刷を行い、転写汚れが発生するか状態を調べ、次のように評価した。
◎:転写汚れが認められない
○:転写汚れがわずかに認められる
△:転写汚れが認められるが実用上許容範囲である
×:転写汚れがはっきりと認められ実用上許容範囲を超える
(Evaluation)
(Osmotic drying)
Using the prepared emulsion ink, printing was performed with a lithograph (Risaku Kagaku Kogyo Co., Ltd.) RZ570 (manufactured by the company) as a stencil printing machine to obtain a printed matter. After 3 minutes from the printing of the printed material, the back surface was printed, the state of transfer smearing was examined, and the following evaluation was made.
◎: Transfer stain is not recognized ○: Transfer stain is slightly recognized Δ: Transfer stain is recognized but acceptable in practical use ×: Transfer stain is clearly recognized and exceeds practical acceptable range
(1ヶ月放置後の目詰まり)
1ヶ月放置後の印刷ドラムを印刷機RZ570にセットして製版印刷し、印刷を行い、以下のように評価した。
◎:20枚以内で所望の印刷画像が得られた
○:50枚以内で所望の印刷画像が得られた
×:51枚以上で所望の印刷画像が得られた
(Clogging after leaving for one month)
The printing drum after being left for one month was set in a printing machine RZ570, prepress-printed, printed, and evaluated as follows.
A: A desired print image was obtained within 20 sheets. ○: A desired print image was obtained within 50 sheets. X: A desired print image was obtained with 51 sheets or more.
(1ヶ月放置後の油吐き)
1ヶ月放置後の印刷ドラムの油吐きを下記の基準により目視評価した。
◎:油吐きなし
○:少量の油吐きが認められる
△:油吐きしているがドラムからはみ出していない
×:油吐きが顕著でドラムからはみ出している
実施例および比較例のインクの処方とともに、上記の評価項目により評価した結果を表1に示す。
(Oil spitting after leaving for one month)
The oil discharge of the printing drum after being left for 1 month was visually evaluated according to the following criteria.
◎: No oil spilling ○: Small amount of oil spilling is observed △: Oil spilling but not protruding from the drum ×: Oil spilling is remarkable and protruding from the drum In addition to the ink formulations of the examples and comparative examples, Table 1 shows the results of evaluation based on the above evaluation items.
表1から明らかなように、本発明の孔版印刷用エマルションインクは、分子量5,000未満のアルキド樹脂を含むため乾燥性に優れ、長期放置時の目詰まりの発生を抑制することが可能である。一方、実施例1および2のインクはさらに平均分子量が10,000以上のアルキド樹脂を、実施例3のインクはpH7〜8のカーボンブラックを、実施例4および5のインクは炭酸カルシウムをそれぞれ含むので、油吐きを改善することが可能となった。 As is apparent from Table 1, the emulsion ink for stencil printing of the present invention contains an alkyd resin having a molecular weight of less than 5,000, so that it has excellent drying properties and can suppress the occurrence of clogging when left for a long period of time. . On the other hand, the inks of Examples 1 and 2 further contain an alkyd resin having an average molecular weight of 10,000 or more, the ink of Example 3 contains carbon black having a pH of 7 to 8, and the inks of Examples 4 and 5 contain calcium carbonate. So it became possible to improve oil spitting.
油吐きは炭酸カルシウムによって改善され、同じ体質顔料である有機ベントナイトやタルクでは改善効果が薄いことが比較例4および5からわかる。また、分子量5,000未満のアルキド樹脂を含むだけ(比較例1)では、乾燥性を向上させ、目詰まりの発生を抑制することは可能であるが、油吐きが顕著であった。逆に分子量が10,000以上のアルキド樹脂を含んでいても、分子量5,000以下のアルキド樹脂を含まない比較例2および3では油吐きは抑制することができたものの、乾燥性、目詰まりは悪くなった。 It can be seen from Comparative Examples 4 and 5 that the oil spitting is improved by calcium carbonate, and the improvement effect is small with organic bentonite and talc, which are the same extender pigments. In addition, when only an alkyd resin having a molecular weight of less than 5,000 is included (Comparative Example 1), it is possible to improve the drying property and suppress the occurrence of clogging, but oil discharge is significant. On the other hand, even though an alkyd resin having a molecular weight of 10,000 or more is contained, in Comparative Examples 2 and 3 which do not contain an alkyd resin having a molecular weight of 5,000 or less, spitting can be suppressed, but drying and clogging are possible. Became bad.
以上のように、本発明の孔版印刷用エマルションインクは、油相に平均分子量が5,000未満のアルキド樹脂を必須の成分として含有させ、さらに平均分子量が10,000以上のアルキド樹脂を含有させるか、炭酸カルシウムを含有させるか、pH7〜8のカーボンブラックを含有させるかによって、浸透乾燥性がよく、長期保存時における目詰りや油の吐出しを抑制することが可能なものとすることができる。 As described above, the emulsion ink for stencil printing of the present invention contains an alkyd resin having an average molecular weight of less than 5,000 as an essential component in the oil phase, and further contains an alkyd resin having an average molecular weight of 10,000 or more. Depending on whether calcium carbonate is contained or carbon black having a pH of 7 to 8 is contained, the osmotic drying property is good, and clogging and oil discharge during long-term storage can be suppressed. it can.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010133689A JP5662707B2 (en) | 2010-06-11 | 2010-06-11 | Emulsion ink for stencil printing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010133689A JP5662707B2 (en) | 2010-06-11 | 2010-06-11 | Emulsion ink for stencil printing |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011256322A JP2011256322A (en) | 2011-12-22 |
JP5662707B2 true JP5662707B2 (en) | 2015-02-04 |
Family
ID=45472862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010133689A Active JP5662707B2 (en) | 2010-06-11 | 2010-06-11 | Emulsion ink for stencil printing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5662707B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017119386A (en) * | 2015-12-28 | 2017-07-06 | 株式会社リコー | Dryer, image forming device, drying method and control program for dryer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3073818B2 (en) * | 1991-10-29 | 2000-08-07 | 株式会社リコー | Emulsion ink for stencil printing |
JPH08311384A (en) * | 1995-05-22 | 1996-11-26 | Dainippon Ink & Chem Inc | Polymer fine particle for stencil printing ink |
JPH09157571A (en) * | 1995-12-05 | 1997-06-17 | Riso Kagaku Corp | Emulsion ink for porous printing |
JP3775531B2 (en) * | 1996-12-11 | 2006-05-17 | 東北リコー株式会社 | W / O emulsion ink for stencil printing |
JP4520765B2 (en) * | 2004-04-16 | 2010-08-11 | 東北リコー株式会社 | Emulsion ink for stencil printing |
JP2006299208A (en) * | 2005-04-25 | 2006-11-02 | Tohoku Ricoh Co Ltd | Emulsion ink for stencil printing |
US7928322B2 (en) * | 2006-11-02 | 2011-04-19 | Toyo Ink Mfg. Co., Ltd. | Conductive ink, conductive circuit and non-contact media |
JP5315781B2 (en) * | 2008-05-12 | 2013-10-16 | 株式会社リコー | Emulsion ink for stencil printing |
-
2010
- 2010-06-11 JP JP2010133689A patent/JP5662707B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2011256322A (en) | 2011-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5662715B2 (en) | Oil-based inkjet ink | |
US8231722B2 (en) | Injet printing method and ink set | |
WO2011070961A1 (en) | Ink | |
JP5007016B2 (en) | Oil-based inkjet ink | |
JP2004083862A (en) | Non-aqueous ink formulation and its manufacturing method | |
KR100462109B1 (en) | Emulsion ink for stencil printing and its use | |
JP5662707B2 (en) | Emulsion ink for stencil printing | |
JP4837901B2 (en) | Oil-based inkjet ink | |
JP2011143705A (en) | Oil inkjet printing method and ink set | |
JP2007070429A (en) | Emulsion ink for mimeograph printing | |
JP6215595B2 (en) | ink | |
JP2018016717A (en) | Water-in-oil emulsion ink for stencil printing | |
JP2012144636A (en) | Emulsion ink for stencil printing | |
JP2012245723A (en) | Post-treatment agent for water-in-oil emulsion ink, ink set, and printing method | |
US20010039301A1 (en) | Oil ink for stencil printing | |
JP5597405B2 (en) | Water-in-oil emulsion ink | |
JP5526550B2 (en) | Method for producing water-in-oil emulsion ink for stencil printing and water-in-oil emulsion ink for stencil printing | |
JP2011021086A (en) | Water-in-oil type stencil printing emulsion ink | |
JP2010163486A (en) | Emulsion ink for stencil printing | |
JP2013176948A (en) | Oil inkjet printing method, and ink set | |
US20030008940A1 (en) | Emulsion ink for stencil printing | |
JP2010163487A (en) | Emulsion ink for stencil printing | |
JP2021187873A (en) | Water-in-oil emulsion ink for stencil printing | |
JP4253287B2 (en) | Emulsion ink for stencil printing | |
JP2012131075A (en) | Oil-based inkjet printing method and ink set |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD15 | Notification of revocation of power of sub attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7435 Effective date: 20120417 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20130501 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140226 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140304 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140430 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20141111 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20141205 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5662707 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |