WO2023282004A1 - 脱離可能な皮膜形成用組成物 - Google Patents
脱離可能な皮膜形成用組成物 Download PDFInfo
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- WO2023282004A1 WO2023282004A1 PCT/JP2022/024044 JP2022024044W WO2023282004A1 WO 2023282004 A1 WO2023282004 A1 WO 2023282004A1 JP 2022024044 W JP2022024044 W JP 2022024044W WO 2023282004 A1 WO2023282004 A1 WO 2023282004A1
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- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 1
- 229940072049 amyl acetate Drugs 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- PGMYKACGEOXYJE-UHFFFAOYSA-N anhydrous amyl acetate Natural products CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 description 1
- PGEHNUUBUQTUJB-UHFFFAOYSA-N anthanthrone Chemical compound C1=CC=C2C(=O)C3=CC=C4C=CC=C5C(=O)C6=CC=C1C2=C6C3=C54 PGEHNUUBUQTUJB-UHFFFAOYSA-N 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
- 239000013556 antirust agent Substances 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- LFZDEAVRTJKYAF-UHFFFAOYSA-L barium(2+) 2-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate Chemical compound [Ba+2].C1=CC=CC2=C(S([O-])(=O)=O)C(N=NC3=C4C=CC=CC4=CC=C3O)=CC=C21.C1=CC=CC2=C(S([O-])(=O)=O)C(N=NC3=C4C=CC=CC4=CC=C3O)=CC=C21 LFZDEAVRTJKYAF-UHFFFAOYSA-L 0.000 description 1
- POJOORKDYOPQLS-UHFFFAOYSA-L barium(2+) 5-chloro-2-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-methylbenzenesulfonate Chemical compound [Ba+2].C1=C(Cl)C(C)=CC(N=NC=2C3=CC=CC=C3C=CC=2O)=C1S([O-])(=O)=O.C1=C(Cl)C(C)=CC(N=NC=2C3=CC=CC=C3C=CC=2O)=C1S([O-])(=O)=O POJOORKDYOPQLS-UHFFFAOYSA-L 0.000 description 1
- JGCWKVKYRNXTMD-UHFFFAOYSA-N bicyclo[2.2.1]heptane;isocyanic acid Chemical compound N=C=O.N=C=O.C1CC2CCC1C2 JGCWKVKYRNXTMD-UHFFFAOYSA-N 0.000 description 1
- 229920006167 biodegradable resin Polymers 0.000 description 1
- 239000003876 biosurfactant Substances 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical group NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 239000001058 brown pigment Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- BMRWNKZVCUKKSR-UHFFFAOYSA-N butane-1,2-diol Chemical compound CCC(O)CO BMRWNKZVCUKKSR-UHFFFAOYSA-N 0.000 description 1
- QAJHFVRPDSGYSZ-UHFFFAOYSA-N butyl 2-phenylbenzenesulfonate Chemical compound CCCCOS(=O)(=O)C1=CC=CC=C1C1=CC=CC=C1 QAJHFVRPDSGYSZ-UHFFFAOYSA-N 0.000 description 1
- 229940043232 butyl acetate Drugs 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- QNEFNFIKZWUAEQ-UHFFFAOYSA-N carbonic acid;potassium Chemical compound [K].OC(O)=O QNEFNFIKZWUAEQ-UHFFFAOYSA-N 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 235000013869 carnauba wax Nutrition 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- PZTQVMXMKVTIRC-UHFFFAOYSA-L chembl2028348 Chemical compound [Ca+2].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 PZTQVMXMKVTIRC-UHFFFAOYSA-L 0.000 description 1
- ONTQJDKFANPPKK-UHFFFAOYSA-L chembl3185981 Chemical compound [Na+].[Na+].CC1=CC(C)=C(S([O-])(=O)=O)C=C1N=NC1=CC(S([O-])(=O)=O)=C(C=CC=C2)C2=C1O ONTQJDKFANPPKK-UHFFFAOYSA-L 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- LNGJOYPCXLOTKL-UHFFFAOYSA-N cyclopentane-1,3-dicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)C1 LNGJOYPCXLOTKL-UHFFFAOYSA-N 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 229940019778 diethylene glycol diethyl ether Drugs 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- KIQKWYUGPPFMBV-UHFFFAOYSA-N diisocyanatomethane Chemical compound O=C=NCN=C=O KIQKWYUGPPFMBV-UHFFFAOYSA-N 0.000 description 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 1
- 229940043276 diisopropanolamine Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- PPSZHCXTGRHULJ-UHFFFAOYSA-N dioxazine Chemical compound O1ON=CC=C1 PPSZHCXTGRHULJ-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- VYXSBFYARXAAKO-UHFFFAOYSA-N ethyl 2-[3-(ethylamino)-6-ethylimino-2,7-dimethylxanthen-9-yl]benzoate;hydron;chloride Chemical compound [Cl-].C1=2C=C(C)C(NCC)=CC=2OC2=CC(=[NH+]CC)C(C)=CC2=C1C1=CC=CC=C1C(=O)OCC VYXSBFYARXAAKO-UHFFFAOYSA-N 0.000 description 1
- GFUIDHWFLMPAGY-UHFFFAOYSA-N ethyl 2-hydroxy-2-methylpropanoate Chemical compound CCOC(=O)C(C)(C)O GFUIDHWFLMPAGY-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 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 1
- 150000002334 glycols Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000001056 green pigment Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- BQWORYKVVNTRAW-UHFFFAOYSA-N heptane-3,5-diol Chemical compound CCC(O)CC(O)CC BQWORYKVVNTRAW-UHFFFAOYSA-N 0.000 description 1
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- SAMYCKUDTNLASP-UHFFFAOYSA-N hexane-2,2-diol Chemical compound CCCCC(C)(O)O SAMYCKUDTNLASP-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 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
- GWVMLCQWXVFZCN-UHFFFAOYSA-N isoindoline Chemical compound C1=CC=C2CNCC2=C1 GWVMLCQWXVFZCN-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 235000010187 litholrubine BK Nutrition 0.000 description 1
- 239000003879 lubricant additive Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- OBJNZHVOCNPSCS-UHFFFAOYSA-N naphtho[2,3-f]quinazoline Chemical compound C1=NC=C2C3=CC4=CC=CC=C4C=C3C=CC2=N1 OBJNZHVOCNPSCS-UHFFFAOYSA-N 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- 239000001053 orange pigment Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- ZZSIDSMUTXFKNS-UHFFFAOYSA-N perylene red Chemical compound CC(C)C1=CC=CC(C(C)C)=C1N(C(=O)C=1C2=C3C4=C(OC=5C=CC=CC=5)C=1)C(=O)C2=CC(OC=1C=CC=CC=1)=C3C(C(OC=1C=CC=CC=1)=CC1=C2C(C(N(C=3C(=CC=CC=3C(C)C)C(C)C)C1=O)=O)=C1)=C2C4=C1OC1=CC=CC=C1 ZZSIDSMUTXFKNS-UHFFFAOYSA-N 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
- 235000019271 petrolatum Nutrition 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- CLYVDMAATCIVBF-UHFFFAOYSA-N pigment red 224 Chemical compound C=12C3=CC=C(C(OC4=O)=O)C2=C4C=CC=1C1=CC=C2C(=O)OC(=O)C4=CC=C3C1=C42 CLYVDMAATCIVBF-UHFFFAOYSA-N 0.000 description 1
- 229940104573 pigment red 5 Drugs 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000013615 primer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HXHCOXPZCUFAJI-UHFFFAOYSA-N prop-2-enoic acid;styrene Chemical compound OC(=O)C=C.C=CC1=CC=CC=C1 HXHCOXPZCUFAJI-UHFFFAOYSA-N 0.000 description 1
- ARENMZZMCSLORU-UHFFFAOYSA-N propan-2-yl naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)OC(C)C)=CC=CC2=C1 ARENMZZMCSLORU-UHFFFAOYSA-N 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 239000001057 purple pigment Substances 0.000 description 1
- KXXXUIKPSVVSAW-UHFFFAOYSA-K pyranine Chemical compound [Na+].[Na+].[Na+].C1=C2C(O)=CC(S([O-])(=O)=O)=C(C=C3)C2=C2C3=C(S([O-])(=O)=O)C=C(S([O-])(=O)=O)C2=C1 KXXXUIKPSVVSAW-UHFFFAOYSA-K 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- WPPDXAHGCGPUPK-UHFFFAOYSA-N red 2 Chemical compound C1=CC=CC=C1C(C1=CC=CC=C11)=C(C=2C=3C4=CC=C5C6=CC=C7C8=C(C=9C=CC=CC=9)C9=CC=CC=C9C(C=9C=CC=CC=9)=C8C8=CC=C(C6=C87)C(C=35)=CC=2)C4=C1C1=CC=CC=C1 WPPDXAHGCGPUPK-UHFFFAOYSA-N 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical group NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 239000011787 zinc oxide Substances 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
- 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
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to a composition used to form a film that can be detached from a substrate.
- Patent Document 1 a method is disclosed in which a film containing a styrene-acrylic acid resin, a phenolic resin, or a styrene-maleic acid resin as a vehicle printed on a heat-shrinkable PET film is removed with alkaline water (Patent Document 1). ). Similarly, a coat layer containing a styrene-maleic acid resin, a rosin-maleic acid resin, or an acrylic acid copolymer resin is placed between the printed layers on the heat-shrinkable PET film, and the coat layer is washed with alkaline water. Desorption methods have been disclosed (Patent Documents 2 and 3).
- Patent Document 4 Patent Document 5
- Patent Document 6 Patent Document 6
- the problem to be solved by the present invention is to solve the marine plastic problem and the health and environmental problems of workers at the same time.
- a film-forming material film-forming composition
- a film-forming material capable of easily removing a film layer from a material and forming a film having excellent adhesion to a substrate.
- the film-forming composition contains a urethane resin having a hydroxyl value and a specific range of weight-average molecular weight and number-average molecular weight.
- the present inventors have found that the above problems can be solved by using
- a detachable film-forming composition for forming a detachable film on the surface of a substrate A directly or via another layer by treatment with an alkaline solution A film-forming composition containing a urethane resin having a hydroxyl value, a weight average molecular weight of 45,000 or more and a number average molecular weight of 10,000 or more.
- a film-forming composition according to [1] wherein the urethane resin has an acid value of less than 15.0 mgKOH/g.
- a substrate B is arranged on the surface of the printed layer opposite to the surface on which the substrate A is arranged, and the printed matter and A laminate obtained by laminating the base material B.
- a film can be easily removed from a general-purpose plastic substrate by a simple method, and the film layer can be easily removed from the plastic substrate, and a film having excellent adhesion to the substrate can be formed.
- a film-forming composition can be provided.
- the film-forming composition of the present invention is used to form a film on the surface of the substrate A directly or via another layer.
- the other layer may be a single layer or a plurality of layers.
- a film formed from the film-forming composition of the present invention can be removed by treatment with an alkaline solution.
- the film-forming composition contains a urethane resin.
- the urethane resin has a hydroxyl value, a weight average molecular weight of 45,000 or more, and a number average molecular weight of 10,000 or more. Since the urethane resin has a hydroxyl value, the film can be released by a simple method, and the film layer can be easily removed from the plastic substrate.
- the urethane resin has a weight-average molecular weight of 45,000 or more and a number-average molecular weight of 10,000 or more, it is possible to form a film having excellent adhesion to the substrate.
- having a hydroxyl value means that when the hydroxyl value of a urethane resin is measured by the neutralization titration method of JIS K 0070 (1992), titration of one drop does not reach the end point.
- the phrase "having no acid value” means that when the acid value of a urethane resin is measured by the neutralization titration method of JIS K 0070 (1992), titration of one drop reaches the end point.
- the film formed from the film-forming composition of the present invention is used to remove from the substrate A a printed layer formed on the surface of the substrate A directly or via another layer.
- the printed layer means a layer formed by printing with printing ink.
- Methods for removing the printed layer from the base material A include, for example, a method in which the printed layer itself has a detachment function and the printed layer is detached from the base material A (hereinafter also referred to as pattern A method), Another layer is provided between the printed layer and the substrate A, the separate layer has a detachment function, and by detaching the separate layer, the printed layer is also removed from the substrate A.
- a method of desorption hereinafter also referred to as pattern B method
- pattern B method A method of desorption
- the film formed from the film-forming composition of the present invention is intended for both the printed layer in the pattern A method and another layer in the pattern B method. More specifically, the film according to the present invention includes both a printed layer and a primer layer and a varnish layer, which will be described later. That is, the film-forming composition of the present invention can be used in any form of printing ink, primer, or varnish. The film-forming composition of the present invention may be used to form at least one of the printed layer, the primer layer, and the varnish layer. can be formed with the film-forming composition of the present invention.
- Examples of the arrangement configuration of the film and the substrate A according to the present invention include the following cases. ⁇ Base material A - printed layer (white) - printed layer (color) ⁇ Base material A-primer layer-printing layer (white)-printing layer (color) ⁇ Base material A - printed layer (white) - printed layer (color) - varnish layer ⁇ Base material A - primer layer - printed layer (white) - printed layer (color) - varnish layer ⁇ Base material A - printed layer (color ) - printed layer (white) ⁇ Base material A-primer layer-printing layer (color)-printing layer (white) ⁇ Base material A - printed layer (color) - printed layer (white) - varnish layer ⁇ Base material A - primer layer - printed layer (color) - printed layer (white) - varnish layer ⁇ Base material A - varnish layer (color) - varnish layer ⁇ Base material A - varnish layer (color) - varnish layer ⁇ Base material A - varnish layer (color)
- the base material A represents the base material A described later
- the printed layer (white) uses the film-forming composition of the present invention as a printing ink, and uses a white colorant to be contained in the film-forming composition.
- a printed layer formed by printing the film-forming composition using a coloring agent used for ink, and a printed layer (color) is a layer formed by printing the film-forming composition of the present invention as a printing ink.
- a printed layer formed by printing the film-forming composition using a coloring agent other than the coloring agent used in the white ink as a coloring agent to be contained in the film-forming composition, and the primer layer is the primer layer of the present invention.
- the printed layer is an example in which two layers are laminated, one in which white ink is used and the other in which color ink is used as a coloring agent other than white ink. It is not necessary to form two or more layers, and it may be formed of either one layer of white or color.
- Organic solvent-based composition which is the film-forming composition of the present invention, is used to form a printed layer that is detached by treatment with an alkaline solution on the surface of the substrate A directly or via another layer.
- the organic solvent-based composition contains a urethane resin.
- the organic solvent-based composition contains an organic solvent and, if necessary, a colorant and other components.
- the organic solvent-based composition may use raw materials derived from biomass. Due to problems such as the depletion of petroleum resources, petroleum-derived products are preferably replaced by those produced using plants as alternative energy sources and/or using microorganisms. In that case, the organic solvent-based composition can contribute to the reduction of the environmental load by carbon neutrality.
- a urethane resin has a hydroxyl value.
- the hydroxyl value of the urethane resin is not particularly limited, it is preferably 1.0 mgKOH/g or more, preferably 3.0 mgKOH/g or more, and preferably 5.0 mgKOH/g or more from the viewpoint of better releasability. 0 mgKOH/g or more is more preferable, and 10.0 mgKOH/g or more is even more preferable.
- 40.0 mgKOH/g or less is preferable, 35.0 mgKOH/g or less is preferable, 30.0 mgKOH/g or less is preferable, 25.0 mgKOH/g or less is more preferable, and 20.0 mgKOH/g or less is further preferable.
- 1.0 mgKOH / g to 40.0 mgKOH / g more preferably 3.0 mgKOH / g to 35.0 mgKOH / g, more preferably 5.0 mgKOH / g to 30.0 mgKOH / g, 8.0 mgKOH / g ⁇ 25.0 mg KOH/g is more preferred, and 10.0 mg KOH/g to 20.0 mg KOH/g is more preferred.
- the weight average molecular weight of the urethane resin is 45,000 or more.
- the weight-average molecular weight of the urethane resin is preferably 65,000 or more from the viewpoint of achieving a high level of both releasability and adhesion to the substrate.
- the upper limit of the weight average molecular weight is not particularly limited, the weight average molecular weight is preferably 200,000 or less, more preferably 150,000 or less.
- the number average molecular weight of the urethane resin is 10,000 or more.
- the number-average molecular weight of the urethane resin is preferably 30,000 or more from the viewpoint of achieving a high level of both releasability and adhesion to the substrate.
- the upper limit of the number average molecular weight is not particularly limited, the number average molecular weight is preferably 100,000 or less, more preferably 75,000 or less.
- the polydispersity (weight average molecular weight/number average molecular weight) of the urethane resin is not particularly limited, but may be 5.0 or less, 4.0 or less, or 3.0 or less. There may be.
- the lower limit of the polydispersity is not particularly limited, but the polydispersity may be 1.0 or more, may be 1.2 or more, or may be 1.5 or more.
- the acid value of the urethane resin is not particularly limited, but is preferably less than 15.0 mgKOH/g, more preferably 10.0 mgKOH/g or less, from the viewpoint of superior adhesion to the substrate and viscosity stability over time. 5.0 mg KOH/g or less is even more preferred.
- the urethane resin may or may not have an acid value, but preferably does not have an acid value.
- the phrase "having no acid value" means that when the acid value of a urethane resin is measured by the neutralization titration method of JIS K 0070 (1992), titration of one drop reaches the end point.
- the urethane resin preferably contains at least one of polyester polyol and polyether polyol as a constituent component.
- the polyester polyol preferably has a number average molecular weight of 1,000 to 7,000. When the polyester polyol has a number average molecular weight of less than 1,000, the urethane resin film tends to be hard, and the adhesion to the polyester film tends to decrease. If the number-average molecular weight is more than 7,000, the film obtained from the film-forming composition tends to be brittle, and the anti-blocking property of the film tends to decrease.
- the content of the polyester polyol in the urethane resin is preferably 1 to 50 parts by mass with respect to 100 parts by mass of the urethane resin.
- the adhesiveness particularly on high-performance barrier films there is a tendency for the adhesiveness particularly on high-performance barrier films to decrease.
- the re-solubility of the film in the solvent tends to decrease, and the tone reproducibility of printed matter tends to decrease.
- it exceeds 50 parts by mass the film tends to be excessively soft and the blocking resistance tends to be poor.
- the weight average molecular weight and number average molecular weight of the urethane resin and polyester polyol are values measured under the following conditions by gel permeation chromatography (GPC).
- Measuring device high-speed GPC device ("HLC-8220GPC” manufactured by Tosoh Corporation) Column: The following columns manufactured by Tosoh Corporation are connected in series and used. "TSKgel G5000" (7.8mm I.D. x 30cm) x 1 "TSKgel G4000” (7.8mm I.D. x 30cm) x 1 "TSKgel G3000” (7.8mm I.D.
- polyester polyol for example, one obtained by a known esterification reaction of a compound having two or more hydroxyl groups and a polybasic acid can be used.
- the compound having two or more hydroxyl groups is used as a chain extender, and examples thereof include ethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, - glycols such as hexanediol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol; 2-methyl-1,5-pentanediol; , 3-methyl-1,5-pentanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2-butyl-2-ethyl-1,3-propanediol, 1, 2-propanediol, 2-methyl-1,3-propanediol,
- aliphatic polyols such as trimethylolpropane, trimethylolethane, pentaerythritol, sucrose, methylene glycol, glycerin, sorbitol; bisphenol A, 4,4'-dihydroxydiphenyl, 4,4'-dihydroxydiphenyl ether, 4,4 Compounds having a number average molecular weight in the range of 50 to 400, such as '-dihydroxydiphenylsulfone, hydrogenated bisphenol A, and aromatic polyols such as hydroquinone, can be used. These chain extenders may be used alone or in combination of two or more.
- polybasic acid examples include succinic acid, adipic acid, azelaic acid, sebacic acid, dodecanedicarboxylic acid, maleic anhydride, fumaric acid, 1,3-cyclopentanedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, and phthalic acid. Acids, anhydrides of these acids, and the like can be used. These polybasic acids may be used alone or in combination of two or more.
- the polyether polyol preferably has a number average molecular weight of 100 to 4,000.
- Polyether polyols include polyether polyols of polymers or copolymers such as ethylene oxide, propylene oxide and tetrahydrofuran. Specifically, known general-purpose ones such as polyethylene glycol, polypropylene glycol, and polytetramethylene glycol may be used, and among them, polyethylene glycol is preferred.
- the number average molecular weight of the polyether polyol is less than 100, the film obtained from the film-forming composition tends to be hard and the adhesion to the polyester film tends to be lowered.
- the number-average molecular weight is more than 4,000, the film obtained from the film-forming composition tends to be brittle, and the blocking resistance of the film tends to decrease.
- the number average molecular weight of the polyether polyol is measured under the same conditions by gel permeation chromatography (GPC) as in the case of the polyester polyol.
- diisocyanate compound used for producing the urethane resin examples include various known aromatic diisocyanates, aliphatic diisocyanates, and alicyclic diisocyanates that are generally used for producing urethane resins.
- aromatic diisocyanates such as 1,4′-diphenylmethane diisocyanate, 4,4′-diphenyldimethylmethane diisocyanate, 4,4′-dibenzyl isocyanate, dialkyldiphenylmethane diisocyanate, tetraalkyldiphenylmethane diisocyanate, 1,3- Phenylene diisocyanate, 1,4-phenylene diisocyanate, tolylene diisocyanate, butane-1,4-diisocyanate, hexamethylene diisocyanate, isopropylene diisocyanate, methylene diisocyanate, 2,2,4-trimethylhexamethylene
- Chain extenders used in the production of the urethane resin include ethylenediamine, propylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, isophoronediamine, dicyclohexylmethane-4,4′-diamine, and 2-hydroxyethyl.
- the above urethane resin can be obtained, for example, by reacting a polyol, a polyisocyanate, a chain extender, and optionally a monovalent active hydrogen compound.
- a diisocyanate compound is reacted with a diisocyanate compound with a polyester polyol and, if necessary, a combined polyol in such a proportion that the isocyanate groups are excessive to obtain a prepolymer having terminal isocyanate groups, and the resulting prepolymer is placed in an appropriate solvent, i.e., a liquid Ester-based solvents such as ethyl acetate, propyl acetate and butyl acetate, which are commonly used as solvents for ink; ketone-based solvents such as acetone, methyl ethyl ketone and methyl isobutyl ketone; alcohol-based solvents such as methanol, ethanol, isopropyl alcohol and n-butanol.
- Solvent such as toluene, xylene, methylcyclohexane, ethylcyclohexane; or a two-step method of reacting with a chain extender and (or) a terminal blocking agent in a mixed solvent thereof, or a polyester polyol and, if necessary, It is produced by a one-step method in which the combined polyol, diisocyanate compound, chain extender and/or terminal blocking agent are reacted together in a suitable solvent among the above.
- the two-step method is preferable for obtaining a uniform urethane resin.
- the total (equivalent ratio) of the amino groups of the chain extender and (or) terminal blocker is 1/0.9 to 1.3. is preferred. If the equivalent ratio of the isocyanate group to the amino group is less than 1/1.3, the chain extender and (or) the terminal blocking agent remain unreacted, causing yellowing of the urethane resin and odor after printing. may occur.
- a method of imparting a hydroxyl value to a urethane resin for example, a method of using a primary or secondary amine compound having a hydroxy group as a terminal blocking agent when producing a urethane resin can be mentioned.
- the amine compound include monoethanolamine, diethanolamine, 2-amino-2-methyl-1-propanol, monoisopropanolamine, diisopropanolamine and the like.
- a method of not imparting an acid value to the urethane resin for example, a method of using a raw material having no carboxy group in the two-step method or the one-step method described above can be mentioned.
- a method of imparting an acid value to the urethane resin for example, a method of using a raw material having a carboxy group in the two-step method or the one-step method described above can be mentioned.
- Raw materials having a carboxy group include, for example, diols having a carboxy group (eg, 2,2-dimethylolpropionic acid, 2,2-dimethylolbutanoic acid).
- a urethane resin having an acid value can be obtained by using a diol having a carboxyl group as a combined polyol.
- the amine value of the urethane resin is preferably 10.00 mgKOH/g or less. If the amine value exceeds 10.00 mgKOH/g, the anti-blocking property tends to be poor, and in addition, the two-liquid stability after addition of the curing agent is lowered. It is more preferably in the range of 0 to 5.00 mgKOH/g, still more preferably 0 to 3.50 mgKOH, from the viewpoint of maintaining good blocking resistance and two-liquid stability while maintaining plate fogging resistance, adhesiveness and extrusion lamination strength. /g.
- the content of the urethane resin in the composition of the present invention is, for example, in the case of gravure ink applications for gravure printing, from the viewpoint of sufficient adhesion of the gravure ink to the substrate to be printed, the amount of solids relative to the total mass of the ink is 5% by mass or more in terms of minutes, preferably 25% by mass or less from the viewpoint of appropriate ink viscosity and work efficiency during ink production and printing. On the other hand, it is preferably 5% by mass or more and 30% by mass or less in terms of solid content.
- Organic solvent is not particularly limited, and examples include aromatic hydrocarbons such as toluene, xylene, Solvesso #100 and Solvesso #150, aliphatic hydrocarbons such as hexane, methylcyclohexane, heptane, octane, and decane, and methyl acetate. , ethyl acetate, isopropyl acetate, normal propyl acetate, butyl acetate, amyl acetate, ethyl formate, and butyl propionate.
- aromatic hydrocarbons such as toluene, xylene, Solvesso #100 and Solvesso #150
- aliphatic hydrocarbons such as hexane, methylcyclohexane, heptane, octane, and decane
- methyl acetate ethyl acetate
- isopropyl acetate normal propyl a
- Water-miscible organic solvents include alcohols such as methanol, ethanol, propanol, butanol and isopropyl alcohol, ketones such as acetone, methyl ethyl ketone and cyclohaxanone, ethylene glycol (mono, di) methyl ether, and ethylene glycol (mono, di) ethyl.
- Ether ethylene glycol monopropyl ether, ethylene glycol monoisopropyl ether, monobutyl ether, diethylene glycol (mono, di) methyl ether, diethylene glycol (mono, di) ethyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, triethylene glycol (mono, Di)methyl ether, propylene glycol (mono, di)methyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol (mono, di)methyl ether, and other glycol ether organic solvents can be used. These may be used alone or in combination of two or more.
- ester-based organic solvent having 4 or more carbon atoms is not limited, ethyl acetate, isopropyl acetate, normal-propyl acetate, and butyl acetate are more preferable, and normal-propyl acetate is particularly preferable.
- the content of the ester-based organic solvent in the organic solvent-based composition of the present invention is preferably 1% by mass or more, preferably 3% by mass or more, preferably 5% by mass or more, preferably 7% by mass or more, and preferably 10% by mass or more. It is preferably 12% by mass or more, preferably 15% by mass or more, preferably 18% by mass or more, and preferably 20% by mass or more. Moreover, it is preferably 60% by mass or less, preferably 55% by mass or less, preferably 50% by mass or less, preferably 45% by mass or less, preferably 40% by mass or less, preferably 35% by mass or less.
- the content of the ester organic solvent in the organic solvent-based composition of the present invention is preferably 1 to 60% by mass, preferably 3 to 55% by mass, preferably 5 to 50% by mass, preferably 7 to 45% by mass, 10 to 40% by weight is preferred, 12 to 35% by weight is preferred, 15 to 30% by weight is preferred, 18 to 28% by weight is preferred, 20 to 25% by weight is preferred, and 20 to 23% by weight is preferred.
- an alcohol that does not contain an aromatic hydrocarbon-based organic solvent and has a specific evaporation rate of 100 or less when the evaporation rate of butyl acetate is 100 is used. It is preferable to contain. By containing an alcohol having a specific evaporation rate of 100 or less, it is possible to maintain the highlight transfer property with a halftone dot area of 10% or less and improve the highlight.
- the mechanism has the following two points. First of all, 1) After the organic solvent-based composition of the present invention is transferred to the substrate, half of the organic solvent-based composition of the present invention remains in the cells of the gravure plate.
- alcohols with a specific evaporation rate of 100 or less when the evaporation rate of butyl acetate is 100 have a low ratio of hydroxyl groups (alcohol groups) in one molecule of alcohol, and therefore have a low solubility in urethane resins. tend to increase.
- hydroxyl groups alcohol groups
- glycol ethers can be added as long as they are less than 10% by mass of the total amount of the composition.
- the organic solvent-based composition of the present invention may further contain a colorant.
- Examples of the coloring agent used in the organic solvent-based composition of the present invention include inorganic pigments, organic pigments, and dyes used in general inks, paints, recording agents, and the like.
- organic pigments include soluble azo, insoluble azo, azo, phthalocyanine, halogenated phthalocyanine, anthraquinone, anthanthrone, dianthraquinonyl, anthrapyrimidine, perylene, perinone, quinacridone, Examples include thioindigo, dioxazine, isoindolinone, quinophthalone, azomethineazo, flavanthrone, diketopyrrolopyrrole, isoindoline, indanthrone, and carbon black pigments.
- black pigment for example, C.I. I. Pigment Black 1, C.I. I. Pigment Black 6, C.I. I. Pigment Black 7, C.I. I. Pigment Black 9, C.I. I. Pigment Black 20 and the like.
- Pigment Blue 62 C.I. I. Pigment Blue 63, C.I. I. Pigment Blue 64, C.I. I. Pigment Blue 75, C.I. I. Pigment Blue 79, C.I. I. Pigment Blue 80 and the like.
- a green pigment for example, C.I. I. Pigment Green 1, C.I. I. Pigment Green 4, C.I. I. Pigment Green 7, C.I. I. Pigment Green 8, C.I. I. Pigment Green 10, C.I. I. Pigment Green 36 and the like.
- red pigments examples include C.I. I. Pigment Red 1, C.I. I. Pigment Red 2, C.I. I. Pigment Red 3, C.I. I. Pigment Red 4, C.I. I. Pigment Red 5, C.I. I. Pigment Red 6, C.I. I. Pigment Red 7, C.I. I. Pigment Red 8, C.I. I. Pigment Red 9, C.I. I. Pigment Red 10, C.I. I. Pigment Red 11, C.I. I. Pigment Red 12, C.I. I. Pigment Red 15, C.I. I. Pigment Red 16, C.I. I. Pigment Red 17, C.I. I. Pigment Red 18, C.I. I. Pigment Red 19, C.I. I. Pigment Red 20, C.I. I.
- Pigment Red 112 C.I. I. Pigment Red 114, C.I. I. Pigment Red 119, C.I. I. Pigment Red 122, C.I. I. Pigment Red 123, C.I. I. Pigment Red 136, C.I. I. Pigment Red 144, C.I. I. Pigment Red 146, C.I. I. Pigment Red 147, C.I. I. Pigment Red 149, C.I. I. Pigment Red 150, C.I. I. Pigment Red 164, C.I. I. Pigment Red 166, C.I. I. Pigment Red 168, C.I. I. Pigment Red 169, C.I. I. Pigment Red 170, C.I. I.
- Pigment Red 220 C.I. I. Pigment Red 221, C.I. I. Pigment Red 223, C.I. I. Pigment Red 224, C.I. I. Pigment Red 226, C.I. I. Pigment Red 237, C.I. I. Pigment Red 238, C.I. I. Pigment Red 239, C.I. I. Pigment Red 240, C.I. I. Pigment Red 242, C.I. I. Pigment Red 245, C.I. I. Pigment Red 247, C.I. I. Pigment Red 248, C.I. I. Pigment Red 251, C.I. I. Pigment Red 253, C.I. I. Pigment Red 254, C.I. I. Pigment Red 255, C.I.
- C.I. I. Pigment Violet 1 C.I. I. Pigment Violet 2, C.I. I. Pigment Violet 3, C.I. I. Pigment Violet 3:1, C.I. I. Pigment Violet 3:3, C.I. I. Pigment Violet 5:1, C.I. I. Pigment Violet 13, C.I. I. Pigment Violet 19 ( ⁇ type, ⁇ type), C.I. I. Pigment Violet 23, C.I. I. Pigment Violet 25, C.I. I. Pigment Violet 27, C.I. I. Pigment Violet 29, C.I. I. Pigment Violet 31, C.I. I. Pigment Violet 32, C.I. I. Pigment Violet 36, C.I. I. Pigment Violet 37, C.I. I. Pigment Violet 38, C.I. I. Pigment Violet 42, C.I. I. Pigment Violet 50, and the like.
- C.I. I. Pigment Yellow 1 C.I. I. Pigment Yellow 3, C.I. I. Pigment Yellow 12, C.I. I. Pigment Yellow 13, C.I. I. Pigment Yellow 14, Pigment Yellow 17, C.I. I. Pigment Yellow 24, C.I. I. Pigment Yellow 42, C.I. I. Pigment Yellow 55, C.I. I. Pigment Yellow 62, C.I. I. Pigment Yellow 65, C.I. I. Pigment Yellow 74, C.I. I. Pigment Yellow 83, C.I. I. Pigment Yellow 86, C.I. I. Pigment Yellow 93, C.I. I. Pigment Yellow 94, C.I. I.
- Pigment Yellow 95 C.I. I. Pigment Yellow 109, C.I. I. Pigment Yellow 110, C.I. I. Pigment Yellow 117, C.I. I. Pigment Yellow 120, Pigment Yellow 125, C.I. I. Pigment Yellow 128, C.I. I. Pigment Yellow 129, C.I. I. Pigment Yellow 137, C.I. I. Pigment, Yellow 138, C.I. I. Pigment Yellow 139, C.I. I. Pigment Yellow 147, C.I. I. Pigment Yellow 148, C.I. I. Pigment Yellow 150, C.I. I. Pigment Yellow 151, C.I. I. Pigment Yellow 153, C.I. I. Pigment Yellow 154, C.I.
- orange pigment for example, C.I. I. Pigment Orange 5, C.I. I. Pigment Orange 13, C.I. I. Pigment Orange 16, C.I. I. Pigment Orange 34, C.I. I. Pigment Orange 36, C.I. I. Pigment Orange 37, C.I. I. Pigment Orange 38, C.I. I. Pigment Orange 43, C.I. I. Pigment Orange 51, C.I. I. Pigment Range 55, C.I. I. Pigment Orange 59, C.I. I. Pigment Orange 61, C.I. I. Pigment Orange 64, C.I. I. Pigment Orange 71, or C.I. I. Pigment Orange 74 and the like.
- brown pigments include C.I. I. Pigment Brown 23, C.I. I. Pigment Brown 25, or C.I. I. Pigment Brown 26 and the like.
- Inorganic pigments include carbon black, titanium oxide, red iron oxide, aluminum, mica (mica), zinc oxide, barium sulfate, calcium carbonate, and silica.
- a bright pigment Metalashine; Nippon Sheet Glass Co., Ltd. obtained by coating glass flakes or massive flakes as a base material with a metal or a metal oxide can also be used. It is preferable to use carbon black for black ink, titanium oxide for white ink, aluminum for gold and silver inks, and mica for pearl ink from the viewpoint of cost and coloring power.
- the total content of the pigments is preferably 1% by mass or more, preferably 60%, based on the total amount of the organic solvent composition of the present invention. % by mass or less.
- the organic solvent-based composition of the present invention may further contain other components such as binder resins and auxiliary agents.
- Binder resins include, for example, cellulosic resins (e.g., nitrocellulose (nitrocellulose)), urethane resins, polyamide resins, vinyl chloride-vinyl acetate copolymer resins, ketone resins, polyester resins, (meth)acrylic resins, rosin-modified malein.
- Resins such as acid resins, rosin-modified fumaric acid resins, chlorinated polypropylene resins, ethylene-vinyl acetate copolymer resins, vinyl acetate resins, alkyd resins, polyvinyl chloride resins, cyclized rubbers, chlorinated rubbers, butyral resins, petroleum resins, etc. , itaconic acid, maleic acid, fumaric acid, cinnamic acid or acid anhydrides thereof, polymerizable monomers having a carboxyl group; polymerizable monomers having a sulfonic acid group, such as sulfonated styrene; and sulfones, such as vinylbenzenesulfonamide.
- Auxiliaries include waxes such as paraffin waxes, polyethylene waxes, and carnauba waxes for imparting friction resistance and slipperiness; fatty acid amide compounds such as oleic acid amide, stearic acid amide, and erucic acid amide; A silicone-based or non-silicon-based antifoaming agent for suppressing foaming; As the dispersant, a nonionic dispersant is preferred.
- the acid value of the dispersant is preferably 30 mgKOH/g or less, more preferably 25 mgKOH/g or less, and even more preferably 20 mgKOH/g or less. Also, for example, it may be 1 mgKOH/g or more, and further 3 mgKOH/g or more.
- the content of the dispersant is preferably 1 part by mass or more, more preferably 2 parts by mass or more, more preferably 5 parts by mass or more, more preferably 10 parts by mass or more, more preferably 15 parts by mass with respect to 100 parts by mass of the coloring agent. More preferably 20 parts by mass or more, preferably 100 parts by mass or less, more preferably 80 parts by mass or less, more preferably 75 parts by mass or less, more preferably 70 parts by mass or less, 65 parts by mass or less is more preferable, and 60 parts by mass or less is more preferable.
- the viscosity of the organic solvent-based composition of the present invention is preferably 6 seconds or more, more preferably 10 seconds or more, and even more preferably 13 seconds or more as a numerical value measured at 25° C. using Zahn cup #3 manufactured by Rigosha. . Also, the time is preferably 25 seconds or less, more preferably 20 seconds or less, and even more preferably 18 seconds or less.
- the surface tension of the organic solvent-based composition of the present invention is preferably 25 mN/m or more, more preferably 33 mN/m or more. Moreover, it is preferably 50 mN/m or less, more preferably 43 mN/m or less.
- the wettability of the organic solvent-based composition of the present invention to the substrate can be maintained while dot bridges (adjacent halftone dots) Stain on the printing surface where halftone dots are connected to each other) can be suppressed, and by appropriately lowering the surface tension of the organic solvent composition of the present invention, the organic solvent composition of the present invention can be applied to the substrate. It can improve wettability and suppress cissing.
- the organic solvent-based composition of the present invention when used for gravure printing or flexographic printing, it can be produced using an Eiger mill, a sand mill, a gamma mill, an attritor, etc., which are generally used for producing gravure or flexographic inks. can.
- the organic solvent-based composition of the present invention When preparing the organic solvent-based composition of the present invention, from the viewpoint of uniformity, at least part of the urethane resin, the colorant, and at least part of the organic solvent are mixed in advance to form a preliminary composition (kneading base ink) may be prepared.
- the composition to be removed from the substrate includes resist ink, but the purpose of the resist ink is to remove the coating film from the substrate in advance, leaving a part, and to process the substrate. Since the application and purpose are fundamentally different from the film-forming composition of the present invention, which aims to detach the entire film and recycle the substrate, the well-known technique of the present invention is Not applicable.
- the film-forming composition of the present invention can also be used as a primer composition for forming a primer layer.
- the primer composition which is the film-forming composition of the present invention, contains the ⁇ urethane resin>>.
- the primer composition may contain commercially available binder resins, solvents such as organic solvents and aqueous solvents, and additives without particular limitations.
- Binder resins include, for example, cellulosic resins (e.g., nitrocellulose (nitrocellulose)), urethane resins (excluding the above ⁇ urethane resin>>), polyamide resins, vinyl chloride-vinyl acetate copolymer resins, ketone resins, polyester Resin, (meth)acrylic resin, rosin-modified maleic acid resin, rosin-modified fumaric acid resin, chlorinated polypropylene resin, ethylene-vinyl acetate copolymer resin, vinyl acetate resin, alkyd resin, polyvinyl chloride resin, cyclized rubber, chloride Resins such as rubber, butyral resin, and petroleum resin; polymerizable monomers having carboxyl groups such as itaconic acid, maleic acid, fumaric acid, cinnamic acid or their acid anhydrides; and sulfonic acid groups such as sulfonated styrene.
- cellulosic resins e
- polymerizable monomers such as polymerizable monomers and polymerizable monomers having a sulfonamide group such as vinylbenzenesulfonamide
- examples include resins, radical copolymer resins such as terpene-(anhydride) maleic acid resins, and acid-modified polyolefin resins, and these can be used singly or in combination.
- Any solvent may be used as long as it is an organic solvent, and for example, the same organic solvent as described in the section ⁇ Organic solvent>> of ⁇ Organic solvent-based composition> can be used.
- Additives include extender pigments, pigment dispersants, leveling agents, antifoaming agents, waxes, plasticizers, antiblocking agents, infrared absorbers, ultraviolet absorbers, fragrances, and flame retardants.
- the amount of ⁇ urethane resin>> to be added may be appropriately determined within a range that does not impair the properties of the primer layer. It is preferably in the range of 5 to 30% by mass with respect to the total mass of.
- primers to which a resin having an acidic group or a low-molecular-weight compound is added can be preferably used.
- Resins and low-molecular-weight compounds having acidic groups are not particularly limited as long as they can be easily mixed with the aforementioned ⁇ urethane resin>>, which is the main component of the primer, organic solvents, and the like.
- resins having an acidic group examples include cellulose resins (e.g., nitrocellulose), urethane resins (excluding the above ⁇ urethane resins>>), polyamide resins, vinyl chloride-vinyl acetate copolymer resins, Ketone resin, polyester resin, (meth)acrylic resin, rosin-modified maleic acid resin, rosin-modified fumaric acid resin, chlorinated polypropylene resin, ethylene-vinyl acetate copolymer resin, vinyl acetate resin, alkyd resin, polyvinyl chloride resin, ring Polymerizable monomers having carboxyl groups such as itaconic acid, maleic acid, fumaric acid, cinnamic acid or their acid anhydrides, and sulfones (Meth)acrylic resin, styrene obtained by copolymerizing a polymerizable monomer having an acidic group, such as a polymerizable monomer having a sulfonic acid group such as
- -Resins that are radical copolymers such as (meth)acrylic resins, styrene-(anhydride) maleic acid resins, terpene-(anhydride) maleic acid resins, acid-modified polyolefin resins, etc. (excluding the above binder resins) These can be used singly or in combination.
- the low-molecular-weight compound having an acidic group preferably includes organic acids such as saturated fatty acids, unsaturated fatty acids, hydroxy acids, aromatic carboxylic acids, dicarboxylic acids, tricarboxylic acids, oxocarboxylic acids, and carboxylic acid derivatives. Alternatively, a plurality of them can be mixed and used.
- Saturated fatty acids include lauric acid, myristic acid, palmitic acid, margaric acid, stearic acid, decanoic acid, undecanoic acid, and dodecanoic acid.
- Unsaturated fatty acids include oleic acid, linoleic acid, linolenic acid, and arachidonic acid.
- eicosapentaenoic acid docosahexaenoic acid
- sorbic acid and the like.
- hydroxy acids include lactic acid, malic acid, and citric acid.
- aromatic carboxylic acids include benzoic acid, phthalic acid, isophthalic acid, and terephthalic acid.
- salicylic acid gallic acid, mellitic acid, cinnamic acid, and dicarboxylic acids
- dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, dimer acid , fumaric acid, maleic acid, azelaic acid, etc.
- tricarboxylic acids include aconitic acid, trimer acid, etc.
- oxocarboxylic acids include pyruvic acid, oxaloacetic acid, etc.
- carboxylic acid derivatives include , amino acids, and nitrocarboxylic acids, and these can be used singly or in combination.
- the film-forming composition of the present invention can also be used as a varnish composition for forming a varnish layer.
- the varnish composition which is the film-forming composition of the present invention, contains the ⁇ urethane resin>>.
- the varnish composition may contain, without particular limitation, commercially available binder resins, solvents such as organic solvents and aqueous solvents, additives, and the like.
- Binder resins include, for example, cellulosic resins (e.g., nitrocellulose (nitrocellulose)), urethane resins (excluding the above ⁇ urethane resin>>), polyamide resins, vinyl chloride-vinyl acetate copolymer resins, ketone resins, polyester Resin, (meth)acrylic resin, rosin-modified maleic acid resin, rosin-modified fumaric acid resin, chlorinated polypropylene resin, ethylene-vinyl acetate copolymer resin, vinyl acetate resin, alkyd resin, polyvinyl chloride resin, cyclized rubber, chloride Resins such as rubber, butyral resin, and petroleum resin; polymerizable monomers having carboxyl groups such as itaconic acid, maleic acid, fumaric acid, cinnamic acid or their acid anhydrides; and sulfonic acid groups such as sulfonated styrene.
- cellulosic resins e
- polymerizable monomers such as polymerizable monomers and polymerizable monomers having a sulfonamide group such as vinylbenzenesulfonamide
- examples include resins, radical copolymer resins such as terpene-(anhydride) maleic acid resins, and acid-modified polyolefin resins, and these can be used singly or in combination.
- Any solvent may be used as long as it is an organic solvent, and for example, the same organic solvent as described in the ⁇ organic solvent>> column of ⁇ organic solvent-based composition> can be used.
- Additives include extender pigments, pigment dispersants, leveling agents, antifoaming agents, waxes, plasticizers, antiblocking agents, infrared absorbers, ultraviolet absorbers, fragrances, and flame retardants.
- the amount of ⁇ urethane resin>> to be added may be appropriately determined within a range that does not impair the properties of the varnish layer. It is preferably in the range of 5 to 30% by mass with respect to the
- resins having an acidic group examples include cellulose resins (e.g., nitrocellulose), urethane resins (excluding the above ⁇ urethane resins>>), polyamide resins, vinyl chloride-vinyl acetate copolymer resins, Ketone resin, polyester resin, (meth)acrylic resin, rosin-modified maleic acid resin, rosin-modified fumaric acid resin, chlorinated polypropylene resin, ethylene-vinyl acetate copolymer resin, vinyl acetate resin, alkyd resin, polyvinyl chloride resin, ring Polymerizable monomers having carboxyl groups such as itaconic acid, maleic acid, fumaric acid, cinnamic acid or their acid anhydrides, and sulfones (Meth)acrylic resin, styrene obtained by copolymerizing a polymerizable monomer having an acidic group, such as a polymerizable monomer having a sulfonic acid group such as
- -Resins that are radical copolymers such as (meth)acrylic resins, styrene-(anhydride) maleic acid resins, terpene-(anhydride) maleic acid resins, acid-modified polyolefin resins, etc. (excluding the above binder resins) These can be used singly or in combination.
- the low-molecular-weight compound having an acidic group preferably includes organic acids such as saturated fatty acids, unsaturated fatty acids, hydroxy acids, aromatic carboxylic acids, dicarboxylic acids, tricarboxylic acids, oxocarboxylic acids, and carboxylic acid derivatives. Alternatively, a plurality of them can be mixed and used.
- Saturated fatty acids include lauric acid, myristic acid, palmitic acid, margaric acid, stearic acid, decanoic acid, undecanoic acid, and dodecanoic acid.
- Unsaturated fatty acids include oleic acid, linoleic acid, linolenic acid, and arachidonic acid. , eicosapentaenoic acid, docosahexaenoic acid, sorbic acid, and the like.
- Examples of hydroxy acids include lactic acid, malic acid, and citric acid.
- aromatic carboxylic acids include benzoic acid, phthalic acid, isophthalic acid, and terephthalic acid.
- salicylic acid gallic acid, mellitic acid, cinnamic acid, and dicarboxylic acids
- dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, dimer acid , fumaric acid, maleic acid, azelaic acid, etc.
- tricarboxylic acids include aconitic acid, trimer acid, etc.
- oxocarboxylic acids include pyruvic acid, oxaloacetic acid, etc.
- carboxylic acid derivatives include , amino acids, and nitrocarboxylic acids, and these can be used singly or in combination.
- the film-forming composition of the present invention has excellent adhesion to various substrates, and can be used for printing on paper, synthetic paper, cloth, thermoplastic resin films, plastic products, steel plates, and the like.
- the film-forming composition of the present invention is useful as an ink for gravure printing using a gravure printing plate such as an electronic engraving intaglio, or flexographic printing using a flexographic printing plate such as a resin plate.
- a gravure printing plate such as an electronic engraving intaglio
- flexographic printing using a flexographic printing plate such as a resin plate.
- it can also be used for an inkjet system in which ink is ejected from an inkjet nozzle without using a plate, but it is not so preferable.
- ink droplets ejected from a nozzle directly adhere to a substrate to form a printed matter.
- the film-forming composition of the present invention is suitably used in printing methods such as gravure, flexo, die coater, and roll coater.
- the film thickness of the film formed using the film-forming composition of the present invention is, for example, preferably 30 ⁇ m or less, more preferably 20 ⁇ m or less, even more preferably 10 ⁇ m or less, and most preferably 5 ⁇ m or less.
- a printed matter having a film can be obtained by printing the film-forming composition of the present invention on the surface of the substrate A directly or via another layer. This printed matter can also be called a laminate. A laminate can also be obtained by laminating the substrate B on the film side of the printed matter. A laminate having a film, a substrate A and a substrate B may be formed by laminating the film and the substrate B via an adhesive layer.
- Embodiments of a printed matter printed using the film-forming composition of the present invention, a laminate constructed using the printed matter, and a laminate having a film formed using the film-forming composition of the present invention Preferred examples include, but are not limited to, the following aspects.
- the mode of forming the film directly on the surface of the substrate A or via another layer is as follows. ⁇ Surface printing> ⁇ Base material A - printed layer (white) - printed layer (color) ⁇ Base material A-primer layer-printing layer (white)-printing layer (color) ⁇ Base material A - printed layer (white) - printed layer (color) - varnish layer ⁇ Base material A - primer layer - printed layer (white) - printed layer (color) - varnish layer ⁇ Base material A - printed layer (color ) - printed layer (white) ⁇ Base material A-primer layer-printing layer (color)-printing layer (white) ⁇ Base material A - printed layer (color) - printed layer (white) - varnish layer ⁇ Base material A - primer layer - printed layer (color) - printed layer (white) - varnish layer ⁇ Base material A - primer layer - printed layer (color) - printed layer (white) - varnish layer ⁇ Base material A - primer layer
- a mode of arranging the film between the base material A and the base material B is as follows. ⁇ Back side printing/Lamination> ⁇ Base material A - printed layer (white) - printed layer (color) - adhesive layer - base material B ⁇ Base material A - primer layer - printed layer (white) - printed layer (color) - adhesive layer - base material B ⁇ Base material A - printed layer (white) - printed layer (color) - varnish layer - adhesive layer - base material B ⁇ Base material A - primer layer - printed layer (white) - printed layer (color) - varnish layer - adhesive layer - base material B ⁇ Base material A - printed layer (color) - printed layer (white) - adhesive layer - base material B ⁇ Base material A - primer layer - printed layer (color) - printed layer (white) - adhesive layer - base material B ⁇ Base material A - primer layer - printed layer (color) - printed layer (white) - adhesive layer - base material B ⁇ Base material
- the printing layer (white), printing layer (color), primer layer and varnish layer are as described above.
- the base material A, the base material B, the adhesive layer, and the resin C layer will be described below.
- a plastic substrate is preferable, and polyamide resins such as nylon 6, nylon 66, nylon 46, polyethylene terephthalate (PET), polyethylene naphthalate, polytrimethylene terephthalate, polytrimethylene naphthalate, polybutylene terephthalate, Polyester resins such as polybutylene naphthalate, polyhydroxycarboxylic acids such as polylactic acid, biodegradable resins such as aliphatic polyester resins such as poly(ethylene succinate) and poly(butylene succinate), polypropylene, polyethylene, etc. Polyolefin resins, polyimide resins, polyarylate resins, or mixtures thereof and other thermoplastic resin films and laminates thereof.
- polyamide resins such as nylon 6, nylon 66, nylon 46, polyethylene terephthalate (PET), polyethylene naphthalate, polytrimethylene terephthalate, polytrimethylene naphthalate, polybutylene terephthalate, Polyester resins such as polybutylene
- films and laminates made of polyester, polyamide, polyethylene, and polypropylene are preferred.
- Polypropylene or polyethylene is more preferable when considering the releasability of the film-forming composition of the present invention.
- These base films may be either unstretched films or stretched films, and the manufacturing method thereof is not limited.
- the thickness of the base film is not particularly limited, but it is usually in the range of 1 to 500 ⁇ m.
- the printed surface of the substrate A is preferably subjected to corona discharge treatment, and silica, alumina, or the like may be vapor-deposited.
- the substrate B may be the same as the substrate A, and may be the same or different, but is preferably a plastic substrate, more preferably a thermoplastic resin substrate.
- the laminate having the film, substrate A and substrate B is an extrusion laminate, it may be the same as resin C described later. Moreover, it may be laminated with a metal foil layer or a metal foil layer of a deposited film layer.
- Resin C is preferably a thermoplastic resin, more preferably polyolefin, and particularly preferably polypropylene or polyethylene and modified resins thereof.
- any commercially available reactive adhesive can be used without particular limitation.
- a one-part reactive adhesive of polyisocyanate is preferred.
- the polyisocyanate composition used in general reactive adhesives is a composition containing a polyisocyanate compound as a main component, especially if it is known as a polyisocyanate compound for reactive adhesives. Can be used without restrictions.
- polyisocyanate compounds include, for example, tolylene diisocyanate, diphenylmethane diisocyanate, polymeric diphenylmethane diisocyanate, 1,5-naphthalene diisocyanate, triphenylmethane triisocyanate, xylylene diisocyanate, and the like.
- polyisocyanates compounds obtained by modifying some of the isocyanate groups (NCO groups) of these polyisocyanates with carbodiimide; linear aliphatic polyisocyanates such as 1,6-hexamethylene diisocyanate, 1,5-pentamethylene diisocyanate, lysine diisocyanate, and trimethylhexamethylene diisocyanate; Compounds obtained by modifying part of the NCO groups of isocyanates with carbodiimide; isocyanurate forms of the various polyisocyanates; allophanate forms derived from the various polyisocyanates; biuret forms derived from the various polyisocyanates; Examples include adducts obtained by modifying isocyanates with trimethylolpropane; and polyisocyanates which are reaction products of the various polyisocyanates described above and polyol components described later.
- NCO groups isocyanate groups
- linear aliphatic polyisocyanates such as 1,6-hexamethylene diiso
- the polyol composition used in general reactive adhesives is a composition containing a polyol compound as a main component, and any known polyol compound for reactive adhesives can be used without particular limitation. can.
- specific polyol compounds include ethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,6-hexanediol, neopentyl glycol, methylpentanediol, dimethylbutanediol, butylethylpropanediol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, bishydroxyethoxybenzene, 1,4 - cyclohexanediol, 1,4-cyclohexanedimethanol, glycols such as triethylene glycol; tri
- the single layer film can be easily formed in a short time in the film removal process described later. can be separated.
- Any component of the reactive adhesive having an ester bond specifically means a polyol having a polyol compound such as a polyester polyol, a polyether ester polyol, a polyester (polyurethane) polyol, or an acrylic polyol having an ester bond.
- Reactive adhesives include pigments, silane coupling agents, titanate coupling agents, aluminum coupling agents, adhesion promoters such as epoxy resins, leveling agents, colloidal silica, inorganic fine particles such as alumina sol, poly Methyl methacrylate-based organic fine particles, antifoaming agent, anti-sagging agent, wetting and dispersing agent, viscosity modifier, UV absorber, metal deactivator, peroxide decomposer, flame retardant, reinforcing agent, plasticizer, lubricant Additives such as anti-corrosion agents, anti-rust agents, fluorescent whitening agents, inorganic heat ray absorbers, flame retardants, anti-static agents, and dehydrating agents are sometimes used.
- adhesion promoters such as epoxy resins, leveling agents, colloidal silica, inorganic fine particles such as alumina sol, poly Methyl methacrylate-based organic fine particles, antifoaming agent, anti-sagging agent, wetting and dispersing agent
- Reactive adhesives include dry lamination adhesives diluted with highly soluble organic solvents for dilution, solvent-free lamination adhesives that contain almost no organic solvents for dilution, and water-based diluents. There are certain water-based adhesives and the like, but any can be used.
- the base material A, printed layer (white), printed layer (color), primer layer, adhesive layer, varnish layer, resin C layer, or base material B in the laminate may each have a barrier layer interposed therebetween.
- the barrier layer include an inorganic deposition layer and a barrier coat layer, and these may be used alone or in combination.
- the inorganic deposition layer is a layer that has gas barrier properties that prevent permeation of oxygen gas and water vapor gas, and is a deposition layer made of an inorganic material or an inorganic oxide.
- inorganic substances or inorganic oxides include aluminum, alumina, silica and the like, and these can be used singly or in combination of two or more.
- Two or more inorganic deposition layers may be provided. When two or more inorganic deposition layers are provided, they may have the same composition or may have different compositions.
- the barrier coat layer protects the inorganic deposition layer and can improve gas barrier properties such as oxygen and water vapor.
- a gas barrier coating layer is obtained, for example, by polycondensing a mixture of a metal alkoxide and a water-soluble polymer by a sol-gel method in the presence of a sol-gel catalyst and a solvent such as water or an organic solvent. It is formed from a resin composition such as a product, a hydrolysis polycondensate of a metal alkoxide, or the like.
- the recycled base material A can be produced by removing the film from the base material A by treating the printed matter or laminate with an alkaline solution.
- the present invention provides a laminate in which a printed matter and a base material B are laminated with a film disposed on the inside via an adhesive layer or the like.
- Substrate A can be produced.
- the desorption step includes a step of immersing the printed matter or laminate in an alkaline solution while heating and stirring at 20 to 90°C or ultrasonically vibrating. Heating and stirring and ultrasonic vibration may be performed at the same time.
- the heating temperature is preferably 30° C. or higher, preferably 40° C. or higher, preferably 50° C. or higher, and preferably 60° C. or higher, and more preferably perform heating stirring and ultrasonic vibration at the same time.
- the alkaline solution used in the desorption step is not limited, but preferably has a pH of 9 or higher, and includes sodium hydroxide aqueous solution, potassium hydroxide aqueous solution, sodium hydrogen carbonate aqueous solution, potassium hydrogen carbonate aqueous solution, sodium dihydrogen carbonate aqueous solution, carbonate Potassium dihydrogen aqueous solution and the like are preferable.
- Sodium hydroxide aqueous solution, potassium hydroxide aqueous solution, sodium hydrogen carbonate aqueous solution, potassium hydrogen carbonate aqueous solution, sodium dihydrogen carbonate aqueous solution, potassium dihydrogen carbonate aqueous solution, etc. are preferably aqueous solutions with a concentration of 0.5% by mass to 10% by mass. More preferred is an aqueous solution with a concentration of 5% by weight to 5% by weight.
- the alkaline solution may contain a water-soluble organic solvent.
- water-soluble organic solvents include methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, ethylene glycol monomethyl ether (methyl cellosolve), ethylene glycol monoethyl ether (cellosolve), ethylene glycol monobutyl ether (butyl cellosolve), ethylene glycol di Butyl ether, diethylene glycol monomethyl ether (methyl carbitol), diethylene glycol dimethyl ether, diethylene glycol monoethyl ether (carbitol), diethylene glycol diethyl ether (diethyl carbitol), diethylene glycol monobutyl ether (butyl carbitol), diethylene glycol dibutyl ether, triethylene glycol monomethyl ether , triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, methylene dimethyl ether (methylal), propylene glycol monobutyl
- the content of the water-soluble organic solvent in the alkaline solution is preferably 0.1% by mass to 20% by mass, more preferably 1% by mass to 10% by mass.
- the alkaline solution may contain a water-insoluble organic solvent.
- water-insoluble organic solvents include alcohol solvents such as n-butanol, 2-butanol, isobutanol and octanol, aliphatic hydrocarbon solvents such as hexane, heptane and normal paraffin, benzene, toluene, xylene, Aromatic hydrocarbon solvents such as alkylbenzene; halogenated hydrocarbon solvents such as methylene chloride, 1-chlorobutane, 2-chlorobutane, 3-chlorobutane and carbon tetrachloride; ester solvents such as methyl acetate, ethyl acetate and butyl acetate , methyl isobutyl ketone, methyl ethy
- the alkaline solution may contain a surfactant.
- Surfactants include various anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, etc. Among these, anionic surfactants, nonionic surfactants Alternatively, amphoteric surfactants are preferred.
- anionic surfactants include alkylbenzenesulfonates, alkylphenylsulfonates, alkylnaphthalenesulfonates, higher fatty acid salts, sulfuric acid ester salts of higher fatty acid esters, sulfonates of higher fatty acid esters, and higher alcohol ethers. Sulfuric acid ester salts and sulfonates, higher alkyl sulfosuccinates, polyoxyethylene alkyl ether carboxylates, polyoxyethylene alkyl ether sulfates, alkyl phosphates, polyoxyethylene alkyl ether phosphates, etc.
- Specific examples thereof include dodecylbenzenesulfonate, isopropylnaphthalenesulfonate, monobutylphenylphenol monosulfonate, monobutylbiphenylsulfonate, and dibutylphenylphenoldisulfonate.
- nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol fatty acid esters, and glycerin fatty acid esters.
- polyoxyethylene glycerin fatty acid ester polyglycerin fatty acid ester, sucrose fatty acid ester, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, fatty acid alkylolamide, alkylalkanolamide, acetylene glycol, oxyethylene adduct of acetylene glycol, polyethylene glycol polypropylene glycol block copolymers, among others, polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene dodecylphenyl ether, polyoxyethylene alkyl ether, polyoxyethylene fatty acid Esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, fatty acid alkylolamides, acetylene glycol, oxyethylene adducts of acetylene glycol, polyethylene glycol polypropylene glycol block copolymers are preferred.
- surfactants include silicone-based surfactants such as polysiloxane oxyethylene adducts; fluorine-based surfactants such as perfluoroalkyl carboxylates, perfluoroalkyl sulfonates, and oxyethylene perfluoroalkyl ethers. spiculisporic acid, rhamnolipids, biosurfactants such as lysolecithin, and the like can also be used.
- surfactants can be used singly or in combination of two or more.
- the amount added is preferably in the range of 0.001 to 2% by mass, more preferably 0.001 to 1.5% by mass, with respect to the total amount of the alkaline solution, and 0.01 to More preferably, it is in the range of 1% by mass.
- the target printed matter or laminate is immersed in, for example, a treatment bath while the alkaline solution is heated to 20 to 90°C or ultrasonically vibrated.
- the heating method is not particularly limited, and a known heating method using heat rays, infrared rays, microwaves, or the like can be employed.
- the ultrasonic vibration for example, a method of attaching an ultrasonic vibrator to the treatment bath and imparting ultrasonic vibration to the warm water or the alkaline solution can be employed.
- the alkaline solution is stirred during immersion.
- the stirring method include a method of mechanically stirring the dispersion of the printed matter or laminate contained in the processing tank with a stirring blade, a method of stirring with a water jet using a water jet pump, and a bubbling method using an inert gas such as nitrogen gas. and the like, and these may be used together for efficient peeling.
- the time for which the printed matter or laminate is immersed in the alkaline solution is generally in the range of 2 minutes to 48 hours, although it depends on the structure of the printed matter. In the present invention, it is not necessary that 100% of the film in the printed material is completely detached from the substrate. , more preferably 80% by mass or more, and particularly preferably 90% by mass or more.
- the number of times of immersion in the alkaline solution may be one or several times. That is, the step of recovering the separated film substrate may be performed after performing the immersion once, or the step of recovering the film substrate may be performed after performing the immersion several times. Further, when the immersion is performed multiple times in the desorption process, the concentration of the alkaline solution may be changed. Further, known steps such as washing with water and drying may be appropriately added during the desorption step.
- the film-forming composition of the present invention suppresses the content of solvents that are harmful to health and the environment to a certain level or less, and maintains the same properties for general-purpose plastic substrates as those of conventional film-forming materials.
- a specific urethane resin By containing a specific urethane resin, it can be easily detached by alkaline solution treatment, and the film layer can be easily removed from the plastic substrate.
- the film layer has excellent adhesion to the substrate. can be formed.
- Viscosity was measured at 25° C. with a B-type viscometer manufactured by Tokimec.
- urethane prepolymer solution a uniform solution of urethane prepolymer (urethane prepolymer solution).
- IPDA isophoronediamine
- DEA diethanolamine
- the characteristic values of the obtained polyurethane resin solution 1 were as follows. ⁇ Resin solid content hydroxyl value: 20.2 mg KOH / g ⁇ Resin solid content acid value: 0.0 mg KOH / g ⁇ Number average molecular weight of resin solid content: 48,300 - Weight average molecular weight of resin solid content: 82,900 ⁇ Resin solid content amine value: 0.40 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- urethane prepolymer solution a uniform solution of urethane prepolymer (urethane prepolymer solution). Then, in a mixture consisting of 96.6 parts of ethyl acetate, 91.2 parts of isopropyl alcohol, 2.2 parts of 2-(2-aminoethylamino)ethanol (hereinafter abbreviated as AEEA), and 0.3 parts of DEA, The urethane prepolymer solution was added and reacted with stirring at 45° C. for 5 hours to obtain a polyurethane resin solution 2 containing polyurethane 2 .
- the characteristic values of the obtained polyurethane resin solution 2 were as follows.
- Resin solid content hydroxyl value 20.8 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 58,600 - Weight average molecular weight of resin solid content: 106,700 ⁇
- Resin solid content amine value 0.30 mg KOH / g ⁇ Resin solid content concentration: 29.5% by mass
- Resin solid content hydroxyl value 1.5 mg KOH / g ⁇ Resin solid content acid value: 0.0 mg KOH / g ⁇ Number average molecular weight of resin solid content: 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇ Resin solid content amine value: 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 2.9 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 5.0 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 18.8 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 29.6 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 60,000 - Weight average molecular weight of resin solid content: 120,000 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 1.7 mg KOH / g ⁇
- Resin solid content acid value 9.4 mg KOH / g ⁇
- Number average molecular weight of resin solid content 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 2.7 mg KOH / g ⁇
- Resin solid content acid value 9.4 mg KOH / g ⁇
- Number average molecular weight of resin solid content 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 4.8 mg KOH / g ⁇
- Resin solid content acid value 9.4 mg KOH / g ⁇
- Number average molecular weight of resin solid content 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 15.7 mg KOH / g ⁇ Resin solid content acid value: 9.4 mg KOH / g ⁇ Number average molecular weight of resin solid content: 15,300 - Weight average molecular weight of resin solid content: 55,600 ⁇ Resin solid content amine value: 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- Resin solid content hydroxyl value 29.5 mg KOH / g ⁇
- Resin solid content acid value 9.5 mg KOH / g ⁇
- Number average molecular weight of resin solid content 60,000 - Weight average molecular weight of resin solid content: 120,000 ⁇
- Resin solid content amine value 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- the characteristic values of the obtained polyurethane resin solution 13 were as follows. ⁇ Resin solid content hydroxyl value: 17.9 mg KOH / g ⁇ Resin solid content acid value: 18.2 mg KOH / g ⁇ Number average molecular weight of resin solid content: 10,100 - Weight average molecular weight of resin solid content: 30,300 ⁇ Resin solid content amine value: 0.00 mg KOH / g ⁇ Resin solid content concentration: 30.3% by mass
- urethane prepolymer solution 83.6 parts of ethyl acetate was added thereto to obtain a uniform solution of urethane prepolymer (urethane prepolymer solution).
- urethane prepolymer solution was added to a mixture of 113.3 parts of ethyl acetate, 106.0 parts of isopropyl alcohol, and 4.9 parts of IPDA, and the reaction was stirred at 45° C. for 5 hours to produce polyurethane 14.
- a polyurethane resin solution 14 was obtained.
- the characteristic values of the obtained polyurethane resin solution 14 were as follows.
- Resin solid content hydroxyl value 0.0 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 48,600 - Weight average molecular weight of resin solid content: 88,000 ⁇
- Resin solid content amine value 2.10 mg KOH / g ⁇ Resin solid content concentration: 30.2% by mass
- urethane prepolymer solution After the prepolymer was produced, 72.8 parts of ethyl acetate was added thereto to obtain a uniform solution of urethane prepolymer (urethane prepolymer solution). Next, the urethane prepolymer solution was added to a mixture of 99.1 parts of ethyl acetate, 92.6 parts of isopropyl alcohol, and 4.2 parts of IPDA, and the reaction was stirred at 45° C. for 5 hours to produce polyurethane 15. A polyurethane resin solution 15 was obtained. The characteristic values of the obtained polyurethane resin solution 15 were as follows.
- Resin solid content hydroxyl value 0.0 mg KOH / g ⁇
- Resin solid content acid value 0.0 mg KOH / g ⁇
- Number average molecular weight of resin solid content 52,700 - Weight average molecular weight of resin solid content: 95,400 ⁇
- Resin solid content amine value 2.40 mg KOH / g ⁇ Resin solid content concentration: 29.7% by mass
- the prepared film-forming composition was subjected to the following evaluations. Table 4 shows the results.
- ⁇ Evaluation item 1 Viscosity stability> The resulting film-forming composition was placed in a sealed container and allowed to stand at 25° C. for 24 hours. After being left for 24 hours, the viscosity of the film-forming composition was measured with a Zahn cup #3 and evaluated according to the following evaluation criteria. [Evaluation criteria] 3: No noticeable increase in viscosity after standing for 24 hours. 2: Remarkable viscosity increase was observed after standing for 24 hours, but the original viscosity was restored by stirring. 1: Remarkable increase in viscosity was observed after standing still for 24 hours, and increase in viscosity was observed even after re-stirring.
- ⁇ Evaluation Item 2 Substrate Adhesion> The prepared film-forming composition is printed with a solid pattern of 240 mm long ⁇ 80 mm wide on the substrate A using a bar coater #4, and then dried with a dryer to form a printed layer 1, and a printed matter having the following configuration 1. got ⁇ Composition of printed materials>> ⁇ Configuration 1: Base material A - printed layer 1 Base material A: Corona-treated polyethylene terephthalate film (Ester E5100, thickness 12 ⁇ m, manufactured by Toyobo Co., Ltd.) (PET)
- PET Corona-treated polyethylene terephthalate film
- the resulting print was left for 24 hours or immediately, then a 5 cm piece of cellophane tape (made by Nichiban Co., Ltd., 12 mm wide) was attached to the printed surface, and one end of the cellophane tape was quickly peeled off in a direction perpendicular to the printed surface. The residual rate of , was determined visually based on the area ratio.
- a test piece obtained by cutting the printed matter into a size of 20 mm ⁇ 20 mm was immersed in the solution and stirred with a stirrer. After confirming the peeling state after stirring, the printed material was rubbed with a finger, and it was also confirmed whether the coating film was peeled off by rubbing. The peelability of the ink coating film under the above conditions was evaluated according to the following evaluation criteria.
- Examples 2 to 16 and Comparative Examples 1 to 5 A film-forming composition was prepared in the same manner as in Example 1, except that the formulation of the film-forming composition was changed to those shown in Tables 4 to 7 below. The prepared film-forming composition was evaluated in the same manner as in Example 1. The results are shown in Tables 4-7.
- the film-forming composition of the present invention it is possible to form a film that can be easily detached by treatment with an alkaline solution and that can be easily removed from a plastic substrate. , it is possible to form a film having excellent adhesion to the substrate.
Landscapes
- Chemical & Material Sciences (AREA)
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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Abstract
Description
またプラスチック基材に対して広く使用される皮膜形成用材料である有機溶剤系印刷インキは、作業者の健康や環境に対する影響を考慮し、トルエンフリー、メチルエチルケトン(MEK)フリーのものに代替が進んでいるため、上記課題を解決する材料もこのことを考慮して開発を進める必要がある。
一方バインダー樹脂として酸価を有するウレタン樹脂を使用したアルカリ水脱離用有機溶剤系印刷インキも開示されている(特許文献4特許文献5、及び特許文献6)。
[1] アルカリ溶液での処理により脱離する皮膜を基材Aの表面に直接又は他の層を介して形成するための脱離可能な皮膜形成用組成物であって、
水酸基価を有し、重量平均分子量が45,000以上かつ数平均分子量が10,000以上であるウレタン樹脂を含有する、皮膜形成用組成物。
[2] 前記ウレタン樹脂の酸価が、15.0mgKOH/g未満である、[1]に記載の皮膜形成用組成物。
[3] 前記水酸基価が、1.0mgKOH/g~30.0mgKOH/gである、[1]又[2]に記載の皮膜形成用組成物。
[4] 前記ウレタン樹脂が、構成成分として、ポリエステルポリオール、及びポリエーテルポリオールの少なくともいずれかを含む、[1]から[3]のいずれかに記載の皮膜形成用組成物。
[5] 着色剤を含有する、[1]から[4]のいずれかに記載の皮膜形成用組成物。
[6] 印刷インキとして用いられる、[5]に記載の皮膜形成用組成物。
[7] 前記印刷インキが、有機溶剤系インキである、[6]に記載の皮膜形成用組成物。
[8] プライマー、又はニスとして用いられる、[1]から[5]のいずれかに記載の皮膜形成用組成物。
[9] 基材Aの表面に直接又は他の層を介して、[1]から[8]のいずれかに記載の皮膜形成用組成物からなる皮膜を有する印刷物。
[10] 前記皮膜が、印刷層、プライマー層、及びニス層から選ばれる少なくとも一つである、[9]に記載の印刷物。
[11] [9]又は[10]に記載の印刷物に対して、前記印刷層の前記基材Aが配置されている面とは反対側の面に、基材Bを配置し、前記印刷物と前記基材Bとを積層してなる積層体。
[12] [9]又は[10]に記載の印刷物に対して、アルカリ溶液で処理することにより前記皮膜を基材Aから脱離して得られるリサイクル基材Aの製造方法。
[13] [11]に記載の積層体に対して、アルカリ溶液で処理することにより前記皮膜とともに基材Bを脱離して得られるリサイクル基材Aの製造方法。
本発明の皮膜形成用組成物は、基材Aの表面に直接又は他の層を介して皮膜を形成するために用いられる。なお、本発明において、他の層とは単一の層でも複数の層であってもよい。
本発明の皮膜形成用組成物により形成される皮膜は、アルカリ溶液での処理により脱離可能である。
皮膜形成用組成物は、ウレタン樹脂を含有する。ウレタン樹脂は、水酸基価を有し、重量平均分子量が45,000以上かつ数平均分子量が10,000以上である。
ウレタン樹脂が水酸基価を有することで、簡便な方法で皮膜を脱離し、プラスチック基材から皮膜層を容易に取り除くことができる。以下、この効果を剥離性と称することがある。
ウレタン樹脂の重量平均分子量が45,000以上かつ数平均分子量が10,000以上であることで、基材への密着性に優れる皮膜が形成できる。
本明細書において酸価を有しないとは、JIS K 0070(1992)の中和滴定法にてウレタン樹脂の酸価を測定した際に、1滴の滴定で終点になることをいう。
ここで、印刷層とは、印刷インキを印刷して形成された層をいう。
印刷層を基材Aから取り除く方法としては、例えば、印刷層自体が脱離機能を有しており、印刷層を基材Aから脱離させる方法(以下、パターンAの方法ともいう)や、印刷層と基材Aとの間に別な層を設け、該別な層が脱離機能を有しており、該別な層を脱離させることにより、印刷層も併せて基材Aから脱離させる方法(以下、パターンBの方法ともいう)などが挙げられる。
つまり、本発明の皮膜形成用組成物は、印刷インキ、プライマー、又はニスのいずれの態様でも用いることができる。
本発明の皮膜形成用組成物は、印刷層、プライマー層、及びニス層のうちいずれか少なくとも一つの層を形成するために用いていればよく、これらの層のうち、1層もしくは2層以上を本発明の皮膜形成用組成物で形成することができる。
・基材A-印刷層(白)-印刷層(カラー)
・基材A-プライマー層-印刷層(白)-印刷層(カラー)
・基材A-印刷層(白)-印刷層(カラー)-ニス層
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-ニス層
・基材A-印刷層(カラー)-印刷層(白)
・基材A-プライマー層-印刷層(カラー)-印刷層(白)
・基材A-印刷層(カラー)-印刷層(白)-ニス層
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-ニス層
・基材A-ニス層
・基材A-印刷層(カラー)
なお、上述した例では、印刷層は、白インキを用いた場合と白インキ以外の着色剤としてカラーインキを用いた場合の2層が積層された例を挙げているが、印刷層はこのように2層以上で形成されている必要はなく、白又はカラーのいずれか1層で形成されている場合であってもよい。
本発明の皮膜形成用組成物である有機溶剤系組成物は、アルカリ溶液での処理により脱離する印刷層を基材Aの表面に直接又は他の層を介して形成するために用いられる。
有機溶剤系組成物は、ウレタン樹脂を含有する。
また、有機溶剤系組成物は、有機溶剤を含有し、必要に応じて着色剤やその他の成分を含有する。
有機溶剤系組成物は、バイオマス由来の原料を用いてもよい。石油資源の枯渇等の問題から、石油由来製品は、代替エネルギーの供給源としての植物を用いて、及び/又は、微生物等を利用して生産されたものに代替されていくことが好ましい。その場合、有機溶剤系組成物はカーボンニュートラルによる環境負荷低減に貢献することができる。
ウレタン樹脂は、水酸基価を有する。
ウレタン樹脂の水酸基価としては、特に制限されないが、剥離性がより優れる点から、1.0mgKOH/g以上が好ましく、3.0mgKOH/g以上が好ましく、5.0mgKOH/g以上が好ましく、8.0mgKOH/g以上がより好ましく、10.0mgKOH/g以上がさらに好ましい。また40.0mgKOH/g以下が好ましく、35.0mgKOH/g以下が好ましく、30.0mgKOH/g以下が好ましく、25.0mgKOH/g以下がより好ましく、20.0mgKOH/g以下がさらに好ましい。また1.0mgKOH/g~40.0mgKOH/gが好ましく、3.0mgKOH/g~35.0mgKOH/gがより好ましく、5.0mgKOH/g~30.0mgKOH/gがより好ましく、8.0mgKOH/g~25.0mgKOH/gがより好ましく、10.0mgKOH/g~20.0mgKOH/gがより好ましい。
重量平均分子量の上限値としては、特に制限されないが、重量平均分子量は、200,000以下が好ましく、150,000以下がより好ましい。
ウレタン樹脂の数平均分子量は、10,000以上である。剥離性と基材への密着性とを高度に両立できる点から、ウレタン樹脂の数平均分子量は、30,000以上が好ましい。
数平均分子量の上限値としては、特に制限されないが、数平均分子量は、100,000以下が好ましく、75,000以下がより好ましい。
ウレタン樹脂の多分散度(重量平均分子量/数平均分子量)としては、特に制限されないが、5.0以下であってもよいし、4.0以下であってもよいし、3.0以下であってもよい。多分散度の下限値としては、特に制限されないが、多分散度は、1.0以上であり、1.2以上であってもよいし、1.5以上であってもよい。
本明細書において酸価を有しないとは、JIS K 0070(1992)の中和滴定法にてウレタン樹脂の酸価を測定した際に、1滴の滴定で終点になることをいう。
前記ポリエステルポリオールの数平均分子量が1000~7000ものであることが好ましい。前記ポリエステルポリオールの数平均分子量が1000より小さいと、ウレタン樹脂の皮膜が硬くなる傾向にありポリエステルフィルムへの接着性が低下し易い。数平均分子量が7000より大きい場合、皮膜形成用組成物により得られる皮膜が脆弱になる傾向にあり皮膜の耐ブロッキング性が低下し易い。一方で、ウレタン樹脂におけるポリエステルポリオールの含有量はウレタン樹脂100質量部に対して1~50質量部あることが好ましく、ポリエーテルポリオールが1質量部未満であると、該ウレタン樹脂のケトン、エステル、アルコール系溶剤への溶解性が低下するのに加え、特に高機能バリアーフィルム上での密着性が低下する傾向となる。また皮膜の該溶剤への再溶解性が低下し、印刷物の調子再現性が低下する傾向となる。また50質量部を超えると、皮膜が過剰に柔らかくなり、耐ブロッキングが劣る傾向と成り易い。
なお、ウレタン樹脂及びポリエステルポリオールの重量平均分子量、及び数平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)法により、下記の条件で測定する値を示す。
カラム:東ソー株式会社製の下記のカラムを直列に接続して使用する。
「TSKgel G5000」(7.8mmI.D.×30cm)×1本
「TSKgel G4000」(7.8mmI.D.×30cm)×1本
「TSKgel G3000」(7.8mmI.D.×30cm)×1本
「TSKgel G2000」(7.8mmI.D.×30cm)×1本
検出器:RI(示差屈折計)
カラム温度:40℃
溶離液:テトラヒドロフラン(THF)
流速:1.0mL/分
注入量:100μL(試料濃度0.4質量%のテトラヒドロフラン溶液)
標準試料:下記の標準ポリスチレンを用いて検量線を作成する。
(標準ポリスチレン)
東ソー株式会社製「TSKgel 標準ポリスチレン A-500」
東ソー株式会社製「TSKgel 標準ポリスチレン A-1000」
東ソー株式会社製「TSKgel 標準ポリスチレン A-2500」
東ソー株式会社製「TSKgel 標準ポリスチレン A-5000」
東ソー株式会社製「TSKgel 標準ポリスチレン F-1」
東ソー株式会社製「TSKgel 標準ポリスチレン F-2」
東ソー株式会社製「TSKgel 標準ポリスチレン F-4」
東ソー株式会社製「TSKgel 標準ポリスチレン F-10」
東ソー株式会社製「TSKgel 標準ポリスチレン F-20」
東ソー株式会社製「TSKgel 標準ポリスチレン F-40」
東ソー株式会社製「TSKgel 標準ポリスチレン F-80」
東ソー株式会社製「TSKgel 標準ポリスチレン F-128」
東ソー株式会社製「TSKgel 標準ポリスチレン F-288」
東ソー株式会社製「TSKgel 標準ポリスチレン F-550」
同様に、前記ポリエーテルポリオールの数平均分子量が100より小さいと、皮膜形成用組成物により得られる皮膜が硬くなる傾向にありポリエステルフィルムへの接着性が低下し易い。数平均分子量が4000より大きい場合、皮膜形成用組成物により得られる皮膜が脆弱になる傾向にあり皮膜の耐ブロッキング性が低下し易い。尚、ポリエーテルポリオールの数平均分子量は、前記ポリエステルポリオールと同様にゲル・パーミエーション・クロマトグラフィー(GPC)法により、同条件で測定する。
他方、ウレタン樹脂に酸価を与える方法としては、例えば、前述の二段法又は一段法において、カルボキシ基を有する原材料を用いる方法が挙げられる。カルボキシ基を有する原材料としては、例えば、カルボキシ基を有するジオール(例えば、2,2-ジメチロールプロピオン酸、2,2-ジメチロールブタン酸)が挙げられる。例えば、前述の二段法又は一段法において、併用ポリオールとしてカルボキシ基を有するジオールを用いることで、酸価を有するウレタン樹脂が得られる。
有機溶剤としては特に制限はないが、たとえばトルエン、キシレン、ソルベッソ#100、ソルベッソ#150等の芳香族炭化水素系、ヘキサン、メチルシクロヘキサン、ヘプタン、オクタン、デカン等の脂肪族炭化水素系、酢酸メチル、酢酸エチル、酢酸イソプロピル、酢酸ノルマルプロピル、酢酸ブチル、酢酸アミル、ギ酸エチル、プロピオン酸ブチル等のエステル系の各種有機溶剤が挙げられる。また水混和性有機溶剤としてメタノール、エタノール、プロパノール、ブタノール、イソプロピルアルコール等のアルコール系、アセトン、メチルエチルケトン、シクロハキサノン等のケトン系、エチレングリコール(モノ,ジ)メチルエーテル、エチレングリコール(モノ,ジ)エチルエーテル、エチレングリコールモノプロピルエーテル、エチレングリコールモノイソプロピルエーテル、モノブチルエーテル、ジエチレングリコール(モノ,ジ)メチルエーテル、ジエチレングリコール(モノ,ジ)エチルエーテル、ジエチレングリコールモノイソプロピルエーテル、ジエチレングリコールモノブチルエーテル、トリエチレングリコール(モノ,ジ)メチルエーテル、プロピレングリコール(モノ,ジ)メチルエーテル、プロピレングリコールモノプロピルエーテル、プロピレングリコールモノブチルエーテル、ジプロピレングリコール(モノ,ジ)メチルエーテル等のグリコールエーテル系の各種有機溶剤が挙げられる。これらを単独または2種以上を混合しても用いることができる。
1)本発明の有機溶剤系組成物が基材に転移後、半分の本発明の有機溶剤系組成物がグラビア版のセル内に残る。
2)その残った本発明の有機溶剤系組成物は再びインキパン内の本発明の有機溶剤系組成物に接するまで含有する溶剤が揮発し、半乾き状態になる。更に蒸発速度が速い溶剤から揮発する為、揮発速度が遅い溶剤がインキパン内に残る。
3)この際に、樹脂溶解性が高い溶剤が残っていると、その半乾き組成物が再び本発明の有機溶剤系組成物に接した際に再溶解し、セル内で本発明の有機溶剤系組成物が固まることを防止する。
酢酸ブチルの蒸発速度を100とした際の比蒸発速度が100を超える汎用的なアルコールでは揮発速度が速いため、上記の様なメカニズムは機能することが難しい傾向にある。
なお、印刷時の作業衛生性と包装材料の有害性の両面から、酢酸エチル、酢酸プロピル、イソプロパノール、ノルマルプロパノールなどを使用し、トルエン等の芳香族溶剤やメチルエチルケトン等のケトン系溶剤を使用しないことがより好ましい。
中でもウレタン樹脂、硝化綿への溶解性の観点から、イソプロピルアルコール/酢酸エチル/酢酸ノルマルプロピル/メチルシクロヘキサンの混合液がより好ましい。また、乾燥調整のために組成物全量の10質量%未満であればグリコールエーテル類を添加することも出来る。
本発明の有機溶剤系組成物は、さらに着色剤を含有してもよい。
有機顔料としては、溶性アゾ系、不溶性アゾ系、アゾ系、フタロシアニン系、ハロゲン化フタロシアニン系、アントラキノン系、アンサンスロン系、ジアンスラキノニル系、アンスラピリミジン系、ペリレン系、ペリノン系、キナクリドン系、チオインジゴ系、ジオキサジン系、イソインドリノン系、キノフタロン系、アゾメチンアゾ系、フラバンスロン系、ジケトピロロピロール系、イソインドリン系、インダンスロン系、カーボンブラック系などの顔料が挙げられる。また、例えば、カーミン6B、レーキレッドC、パーマネントレッド2B、ジスアゾイエロー、ピラゾロンオレンジ、カーミンFB、クロモフタルイエロー、クロモフタルレッド、フタロシアニンブルー、フタロシアニングリーン、ジオキサジンバイオレット、キナクリドンマゼンタ、キナクリドンレッド、インダンスロンブルー、ピリミジンイエロー、チオインジゴボルドー、チオインジゴマゼンタ、ペリレンレッド、ペリノンオレンジ、イソインドリノンイエロー、アニリンブラック、ジケトピロロピロールレッド、昼光蛍光顔料等が挙げられる。また未酸性処理顔料、酸性処理顔料のいずれも使用することができる。以下に有機顔料として好ましいものの具体的な例を挙げる。
C.I.ピグメントレッド202、C.I.ピグメントレッド206、C.I.ピグメントレッド207、C.I.ピグメントレッド208、C.I.ピグメントレッド209、C.I.ピグメントレッド210、C.I.ピグメントレッド211、C.I.ピグメントレッド213、C.I.ピグメントレッド214、C.I.ピグメントレッド216、C.I.ピグメントレッド215、C.I.ピグメントレッド216、C.I.ピグメントレッド220、C.I.ピグメントレッド221、C.I.ピグメントレッド223、C.I.ピグメントレッド224、C.I.ピグメントレッド226、C.I.ピグメントレッド237、C.I.ピグメントレッド238、C.I.ピグメントレッド239、C.I.ピグメントレッド240、C.I.ピグメントレッド242、C.I.ピグメントレッド245、C.I.ピグメントレッド247、C.I.ピグメントレッド248、C.I.ピグメントレッド251、C.I.ピグメントレッド253、C.I.ピグメントレッド254、C.I.ピグメントレッド255、C.I.ピグメントレッド256、C.I.ピグメントレッド257、C.I.ピグメントレッド258、C.I.ピグメントレッド260、C.I.ピグメントレッド262、C.I.ピグメントレッド263、C.I.ピグメントレッド264、C.I.ピグメントレッド266、C.I.ピグメントレッド268、C.I.ピグメントレッド269、C.I.ピグメントレッド270、C.I.ピグメントレッド271、C.I.ピグメントレッド272、C.I.ピグメントレッド279、などが挙げられる。
中でも、好ましい顔料として、黒色顔料としてC.I.ピグメントブラック7、藍色顔料としてC.I.ピグメントブルー15、C.I.ピグメントブルー15:1、C.I.ピグメントブルー15:2、C.I.ピグメントブルー15:3、C.I.ピグメントブルー15:4、C.I.ピグメントブルー15:6、緑色顔料としてC.I.ピグメントグリーン7、赤色顔料としてC.I.ピグメントレッド57:1、C.I.ピグメントレッド48:1、C.I.ピグメントレッド48:2、C.I.ピグメントレッド48:3、C.I.ピグメントレッド146、C.I.ピグメントレッド242、C.I.ピグメントレッド185、C.I.ピグメントレッド122、C.I.ピグメントレッド178、C.I.ピグメントレッド149、C.I.ピグメントレッド144、C.I.ピグメントレッド166、紫色顔料としてC.I.ピグメントバイオレット23、C.I.ピグメントバイオレット37、黄色顔料としてC.I.ピグメントイエロー83、C.I.ピグメントイエロー14、C.I.ピグメントイエロー180、C.I.ピグメントイエロー139、橙色顔料としてC.I.ピグメントオレンジ38、C.I.ピグメントオレンジ13、C.I.ピグメントオレンジ34、C.I.ピグメントオレンジ64、等が挙げられ、これらの群から選ばれる少なくとも一種または二種以上を使用することが好ましい。
本発明の有機溶剤系組成物は、さらにバインダー樹脂、助剤等のその他の成分を含んでいてもよい。
バインダー樹脂は、例えば、セルロース系樹脂(例えば、硝化綿(ニトロセルロース))、ウレタン樹脂、ポリアミド樹脂、塩化ビニル-酢酸ビニル共重合樹脂、ケトン樹脂、ポリエステル樹脂、(メタ)アクリル樹脂、ロジン変性マレイン酸樹脂やロジン変性フマル酸樹脂、塩素化ポリプロピレン樹脂、エチレン-酢酸ビニル共重合樹脂、酢酸ビニル樹脂、アルキッド樹脂、ポリ塩化ビニル樹脂、環化ゴム、塩化ゴム、ブチラール樹脂、石油樹脂等の樹脂や、イタコン酸、マレイン酸、フマル酸、ケイ皮酸あるいはこれらの酸無水物等のカルボキシル基を有する重合性モノマー、スルホン化スチレン等のスルホン酸基を有する重合性モノマー、ビニルベンゼンスルホンアミド等のスルホンアミド基を有する重合性モノマー等の重合性モノマーを共重合させた、(メタ)アクリル樹脂、スチレン-(メタ)アクリル樹脂、スチレン-(無水)マレイン酸樹脂、テルペン-(無水)マレイン酸樹脂等のラジカル共重合体である樹脂や、酸変性されたポリオレフィン樹脂等(上記<<ウレタン樹脂>>を除く)が挙げられ、これを単数あるいは複数混合して使用することができる。
プライマー層を形成するために本発明の皮膜形成用組成物を用いる場合には、本発明の皮膜形成用組成物であるプライマー用組成物としては、上記<<ウレタン樹脂>>を含有する。
プライマー用組成物としては、<<ウレタン樹脂>>の他、特に限定なく市販流通しているバインダー樹脂、有機溶剤や水性溶剤等の溶剤、添加剤等を含むことができる。
飽和脂肪酸としては、ラウリン酸、ミリスチン酸、パルミチン酸、マルガリン酸、ステアリン酸、デカン酸、ウンデカン酸、ドデカン酸などが挙げられ、不飽和脂肪酸としては、オレイン酸、リノール酸、リノレン酸、アラキドン酸、エイコサペンタエン酸、ドコサヘキサエン酸、ソルビン酸などが挙げられ、ヒドロキシ酸としては、乳酸、リンゴ酸、クエン酸などが挙げられ、芳香族カルボン酸としては、安息香酸、フタル酸、イソフタル酸、テレフタル酸、サリチル酸、没食子酸、メリト酸、ケイ皮酸などが挙げられ、ジカルボン酸としては、シュウ酸、マロン酸、コハク酸、グルタル酸、アジピン酸、セバシン酸、ウンデカン二酸、ドデカン二酸、ダイマー酸、フマル酸、マレイン酸、アゼライン酸、などが挙げられ、トリカルボン酸としてはアコニット酸、トリマー酸などが挙げられ、オキソカルボン酸としては、ピルビン酸、オキサロ酢酸などが挙げられ、カルボン酸誘導体としては、アミノ酸、ニトロカルボン酸が挙げられ、これらを単数あるいは複数混合して使用することができる。またクエン酸、酪酸、カプロン酸、エナント酸、カプリル酸、カプリン酸、ラウリン酸、ミリスチン酸、パルミチン酸、パルミトレイン酸、ステアリン酸、オレイン酸、リノール酸、エレオステアリン酸、アラキジン酸、セバシン酸等であればいわゆるスイス条例(Swiss Ordinance)に対応でき、各種規制に対応する物質の使用が好ましい。
ニス層を形成するために本発明の皮膜形成用組成物を用いる場合には、本発明の皮膜形成用組成物であるニス用組成物としては、上記<<ウレタン樹脂>>を含有する。
本発明の皮膜形成用組成物は、各種の基材と密着性に優れ、紙、合成紙、布、熱可塑性樹脂フィルム、プラスチック製品、鋼板等への印刷に使用することができるものである。本発明の皮膜形成用組成物は、電子彫刻凹版等によるグラビア印刷版を用いたグラビア印刷用、又は樹脂版等によるフレキソ印刷版を用いたフレキソ印刷用のインキとして有用である。一方で、版を使用せずインクジェットノズルからインキを吐出するインクジェット方式向けに使用することもできるが、あまり好ましくない。即ち、インクジェットインキの場合、ノズルから吐出したインク滴が、直接基材に密着し印刷物を形成するのに対し、本発明の皮膜形成用組成物は、印刷インキを一旦印刷版又は印刷パターンに密着・転写した後、インキのみを再度基材に密着させ、必要に応じて乾燥させ印刷物とするものである。本発明の皮膜形成用組成物は、グラビア、フレキソ、ダイコーター、及びロールコーター等の印刷方式に好適に用いられる。
本発明の皮膜形成用組成物を基材Aの表面に直接又は他の層を介して印刷することで皮膜を有する印刷物を得ることができる。この印刷物は積層体ともいえる。印刷物の皮膜側に基材Bを配置する形で積層して積層体を得ることもできる。皮膜、基材A及び基材Bを有する積層体は皮膜と基材Bとが接着剤層を介して積層されていても良い。
本発明の皮膜形成用組成物を用いて印刷された印刷物、当該印刷物を用いて構成された積層体、及び本発明の皮膜形成用組成物を用いて形成される皮膜を有する積層体の実施形態としては、限定されるわけではないが、例えば、下記態様が好ましく挙げられる。
<表刷り>
・基材A-印刷層(白)-印刷層(カラー)
・基材A-プライマー層-印刷層(白)-印刷層(カラー)
・基材A-印刷層(白)-印刷層(カラー)-ニス層
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-ニス層
・基材A-印刷層(カラー)-印刷層(白)
・基材A-プライマー層-印刷層(カラー)-印刷層(白)
・基材A-印刷層(カラー)-印刷層(白)-ニス層
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-ニス層
<裏刷り・ラミネート>
・基材A-印刷層(白)-印刷層(カラー)-接着剤層-基材B
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-接着剤層-基材B
・基材A-印刷層(白)-印刷層(カラー)-ニス層-接着剤層-基材B
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-ニス層-接着剤層-基材B
・基材A-印刷層(カラー)-印刷層(白)-接着剤層-基材B
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-接着剤層-基材B
・基材A-印刷層(カラー)-印刷層(白)-ニス層-接着剤層-基材B
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-ニス層-接着剤層-基材B
・基材A-印刷層(白)-印刷層(カラー)-樹脂C層-基材B
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-樹脂C層-基材B
・基材A-印刷層(白)-印刷層(カラー)-ニス層-樹脂C層-基材B
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-ニス層-樹脂C層-基材B
・基材A-印刷層(カラー)-印刷層(白)-樹脂C層-基材B
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-樹脂C層-基材B
・基材A-印刷層(カラー)-印刷層(白)-ニス層-樹脂C層-基材B
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-ニス層-樹脂C層-基材B
・基材A-印刷層(白)-印刷層(カラー)-基材B
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-基材B
・基材A-印刷層(白)-印刷層(カラー)-ニス層-基材B
・基材A-プライマー層-印刷層(白)-印刷層(カラー)-ニス層-基材B
・基材A-印刷層(カラー)-印刷層(白)-基材B
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-基材B
・基材A-印刷層(カラー)-印刷層(白)-ニス層-基材B
・基材A-プライマー層-印刷層(カラー)-印刷層(白)-ニス層-基材B
・基材A-ニス層
・基材A-印刷層(カラー)
以下、基材A、基材B、接着剤層、及び樹脂C層について説明する。
基材Aとしては、プラスチック基材が好ましく、ナイロン6、ナイロン66、ナイロン46等のポリアミド樹脂、ポリエチレンテレフタレート(PET)、ポリエチレンナフタレート、ポリトリメチレンテレフタレート、ポリトリメチレンナフタレート、ポリブチレンテレフタレート、ポリブチレンナフタレート等のポリエステル系樹脂、ポリ乳酸等のポリヒドロキシカルボン酸、ポリ(エチレンサクシネート)、ポリ(ブチレンサクシネート)等の脂肪族ポリエステル系樹脂などの生分解性樹脂、ポリプロピレン、ポリエチレン等のポリオレフィン樹脂、ポリイミド樹脂、ポリアリレート樹脂又はそれらの混合物等の熱可塑性樹脂よりなるフィルムやこれらの積層体が挙げられるが、中でも、ポリエステル、ポリアミド、ポリエチレン、ポリプロピレンからなるフィルムや積層体が好適に使用でき、本発明の皮膜形成用組成物の脱離性を重視するとポリプロピレン又はポリエチレンがより好ましい。これらの基材フィルムは、未延伸フィルムでも延伸フィルムでもよく、その製法も限定されるものではない。また、基材フィルムの厚さも特に限定されるものではないが、通常は1~500μmの範囲であればよい。
基材Bとしては、基材Aと同様のものが挙げられ、同一または異なっていても良いが、プラスチック基材であることが好ましく、熱可塑性樹脂基材であることがより好ましい。
皮膜、基材A及び基材Bを有する積層体が押出ラミネートである場合、後述する樹脂Cと同一であっても良い。また金属箔や蒸着膜層の金属箔層とラミネートされていても良い。
樹脂Cとしては熱可塑性樹脂であることが好ましく、ポリオレフィンがより好ましく、ポリプロピレンもしくはポリエチレンおよびこの変性樹脂が特に好ましい。
接着剤層を形成するための接着剤としては、特に限定なく市販流通している反応性接着剤であれば使用可能だが、中でも、ポリイソシアネート組成物とポリオール組成物とのいわゆる2液型、あるいはポリイソシアネートの1液型反応性接着剤が好ましい。
一般的な反応性接着剤で使用されるポリイソシアネート組成物は、主成分としてポリイソシアネート化合物を含有する組成物であり、反応性接着剤用のポリイソシアネート化合物として知られているものであれば特に限定なく使用できる。具体的なポリイソシアネート化合物の例としては、例えば、トリレンジイソシアネート、ジフェニルメタンジイソシアネート、ポリメリックジフェニルメタンジイソシアネート、1,5-ナフタレンジイソシアネート、トリフェニルメタントリイソシアネート、キシリレンジイソシアネート等の分子構造内に芳香族構造を持つポリイソシアネート、これらのポリイソシアネートのイソシアネート基(NCO基)の一部をカルボジイミドで変性した化合物;イソホロンジイソシアネート、4,4’-メチレンビス(シクロヘキシルイソシアネート)、1,3-(イソシアナートメチル)シクロヘキサン等の分子構造内に脂環式構造を持つポリイソシアネート;1,6-ヘキサメチレンジイソシアネート、1,5-ペンタメチレンジイソシアネート、リジンジイソシアネート、トリメチルヘキサメチレンジイソシアネート等の直鎖状脂肪族ポリイソシアネート、これらのポリイソシアネートのNCO基の一部をカルボジイミドで変性した化合物;前記各種のポリイソシアネートのイソシアヌレート体;前記各種のポリイソシアネートに由来するアロファネート体;前記各種のポリイソシアネートに由来するビゥレット体;前記各種のポリイソシアネートをトリメチロールプロパン変性したアダクト体;前記各種のポリイソシアネートと後述のポリオール成分との反応生成物であるポリイソシアネートなどが挙げられる。
本発明は、印刷物又は積層体に対して、アルカリ溶液処理により皮膜を基材Aから脱離して、リサイクル基材Aを製造することができる。
水溶性有機溶剤としては、例えば、メチルアルコール、エチルアルコール、プロピルアルコール、イソプロピルアルコール、エチレングリコールモノメチルエーテル(メチルセロソルブ)、エチレングリコールモノエチルエーテル(セロソルブ)、エチレングリコールモノブチルエーテル(ブチルセロソルブ)、エチレングリコールジブチルエーテル、ジエチレングリコールモノメチルエーテル(メチルカルビトール)、ジエチレングリコールジメチルエーテル、ジエチレングリコールモノエチルエーテル(カルビトール)、ジエチレングリコールジエチルエーテル(ジエチルカルビトール)、ジエチレングリコールモノブチルエーテル(ブチルカルビトール)、ジエチレングリコールジブチルエーテル、トリエチレングリコールモノメチルエーテル、トリエチレングリコールジメチルエーテル、テトラエチレングリコールジメチルエーテル、メチレンジメチルエーテル(メチラール)、プロピレングリコールモノブチルエーテル、テトラヒドロフラン、アセトン、ジアセトンアルコール、アセトニルアセトン、アセチルアセトン、エチレングリコールモノメチルエーテルアセテート(メチルセロソルブアセテート)、ジエチレングリコールモノメチルエーテルアセテート(メチルカルビトールアセテート)、ジエチレングリコールモノエチルエーテルアセテート(カルビトールアセテート)、エチルヒドロキシイソブチレートおよび乳酸エチルなどを例示することができ、これらは単独でまたは2種以上を組み合わせて使用することができる。
また、アルカリ溶液は、非水溶性有機溶剤を含有していてもよい。
非水溶性有機溶剤の具体例としては、n-ブタノール、2-ブタノール、イソブタノール、オクタノールなどのアルコール系溶剤、ヘキサン、ヘプタン、ノルマルパラフィンなどの脂肪族炭化水素系溶剤、ベンゼン、トルエン、キシレン、アルキルベンゼンなどの芳香族炭化水素系溶剤、塩化メチレン、1-クロロブタン、2-クロロブタン、3-クロロブタン、四塩化炭素などのハロゲン化炭化水素系溶剤、酢酸メチル、酢酸エチル、酢酸ブチルなどのエステル系溶剤、メチルイソブチルケトン、メチルエチルケトン、シクロヘキサノンなどのケトン系溶剤、エチルエーテル、ブチルエーテルなどのエーテル系溶剤を例示することができ、これらは単独でまたは2種以上を組み合わせて使用することができる。
尚、本発明におけるGPC(ゲルパーミエーションクロマトグラフィー)による重量平均分子量及び数平均分子量(ポリスチレン換算)の測定は東ソー(株)社製HLC8220システムを用い以下の条件で行った。
分離カラム:東ソー(株)製TSKgelGMHHR-Nを4本使用。
カラム温度:40℃。
移動層:和光純薬工業(株)製テトラヒドロフラン。
流速:1.0ml/分。
試料濃度:1.0%。
試料注入量:100マイクロリットル。
検出器:示差屈折計。
粘度はトキメック社製B型粘度計で25℃において測定した。
水酸基価はJIS K 0070-1992に準拠して測定した。
酸価はJIS K 0070-1992に準拠して測定した。
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、2-メチル-1,3-プロパンジオールとアジピン酸を原料とするポリエステルポリオール(水酸基価:56mgKOH/g) 80.0部、ポリエチレングリコール(水酸基価:277mgKOH/g) 20.0部、及びイソホロンジイソシアネート(以下、IPDIと略す。) 25.4部を仕込み、窒素気流下に90℃で20時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 83.6部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、酢酸エチル 110.1部、イソプロピルアルコール 104.9部、イソホロンジアミン(以下、IPDAと略す。) 2.7部、及びジエタノールアミン(以下、DEAと略す。) 0.3部からなる混合物に、前記ウレタンプレポリマー溶液を添加し、45℃で5時間攪拌反応させて、ポリウレタン1を含有するポリウレタン樹脂溶液1を得た。
得られたポリウレタン樹脂溶液1の特性値は、以下の通りであった。
・樹脂固形分水酸基価:20.2mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:48,300
・樹脂固形分の重量平均分子量:82,900
・樹脂固形分アミン価:0.40mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、2-メチル-1,3-プロパンジオールと3-メチル-1,5-ペンタンジオールとネオペンチルグリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:22mgKOH/g) 100.0部、及びIPDI 9.2部を仕込み、窒素気流下に100℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 72.8部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、酢酸エチル 96.6部、イソプロピルアルコール 91.2部、2-(2-アミノエチルアミノ)エタノール(以下、AEEAと略す。) 2.2部、及びDEA 0.3部からなる混合物に、前記ウレタンプレポリマー溶液を添加し、45℃で5時間攪拌反応させて、ポリウレタン2を含有するポリウレタン樹脂溶液2を得た。
得られたポリウレタン樹脂溶液2の特性値は、以下の通りであった。
・樹脂固形分水酸基価:20.8mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:58,600
・樹脂固形分の重量平均分子量:106,700
・樹脂固形分アミン価:0.30mgKOH/g
・樹脂固形分濃度:29.5質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、及びIPDI 16.8部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 210.5部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 74.5部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、IPDA 6.5部及びイソプロピルアルコール 15.2部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、モノエタノールアミン(以下、MEAと略す。) 0.2部及びイソプロピルアルコール 0.5部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン3を含有するポリウレタン樹脂溶液3を得た。
得られたポリウレタン樹脂溶液3の特性値は、以下の通りであった。
・樹脂固形分水酸基価:1.5mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、及びIPDI 16.8部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 210.5部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 74.6部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、IPDA 6.1部、AEEA 0.3部、及びイソプロピルアルコール 14.9部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部及びイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン4を含有するポリウレタン樹脂溶液4を得た。
得られたポリウレタン樹脂溶液4の特性は、以下の通りであった。
・樹脂固形分水酸基価:2.9mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、及びIPDI 16.8部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 210.5部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 75.3部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、IPDA 5.3部、AEEA 0.8部、及びイソプロピルアルコール 14.2部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部及びイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン5を含有するポリウレタン樹脂溶液5を得た。
得られたポリウレタン樹脂溶液5の特性は、以下の通りであった。
・樹脂固形分水酸基価:5.0mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、及びIPDI 16.8部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 210.5部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 80.2部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、AEEA 4.0部及びイソプロピルアルコール 9.3部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部及びイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン6を含有するポリウレタン樹脂溶液6を得た。
得られたポリウレタン樹脂溶液6の特性は、以下の通りであった。
・樹脂固形分水酸基価:18.8mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、及びIPDI 22.7部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 221.0部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 77.7部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、AEEA 7.0部及びイソプロピルアルコール 16.3部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部及びイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン7を含有するポリウレタン樹脂溶液7を得た。
得られたポリウレタン樹脂溶液7の特性は、以下の通りであった。
・樹脂固形分水酸基価:29.6mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:60,000
・樹脂固形分の重量平均分子量:120,000
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、ジメチロールブタン酸(以下、DMBAと略) 2.7部、及びIPDI 21.4部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 217.3部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 79.3部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、IPDA 6.9部とイソプロピルアルコール 16.1部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部とイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン8を含有するポリウレタン樹脂溶液8を得た。
得られたポリウレタン樹脂溶液8の特性値は、以下の通りであった。
・樹脂固形分水酸基価:1.7mgKOH/g
・樹脂固形分酸価:9.4mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、DMBA 2.7部、及びIPDI 21.4部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 217.3部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 79.5部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、IPDA 6.5部、AEEA 0.3部、及びイソプロピルアルコール 15.9部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部とイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン9を含有するポリウレタン樹脂溶液9を得た。
得られたポリウレタン樹脂溶液9の特性値は、以下の通りであった。
・樹脂固形分水酸基価:2.7mgKOH/g
・樹脂固形分酸価:9.4mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、DMBA 2.7部、及びIPDI 21.4部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 217.3部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 80.5部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、IPDA 5.6部、AEEA 0.8部、及びイソプロピルアルコール 14.9部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部とイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン10を含有するポリウレタン樹脂溶液10を得た。
得られたポリウレタン樹脂溶液10の特性値は、以下の通りであった。
・樹脂固形分水酸基価:4.8mgKOH/g
・樹脂固形分酸価:9.4mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、DMBA 2.7部、及びIPDI 21.4部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 217.3部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 95.4部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、AEEA 4.2部とイソプロピルアルコール 9.8部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部とイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させて、ポリウレタン11を含有するポリウレタン樹脂溶液11を得た。
得られたポリウレタン樹脂溶液11の特性値は、以下の通りであった。
・樹脂固形分水酸基価:15.7mgKOH/g
・樹脂固形分酸価:9.4mgKOH/g
・樹脂固形分の数平均分子量:15,300
・樹脂固形分の重量平均分子量:55,600
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、ネオペンチルグリコールとプロピレングリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:29mgKOH/g) 100.0部、ポリエチレングリコール(水酸基価:112mgKOH/g) 5.4部、DMBA 2.7部、及びIPDI 27.7部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 234.2部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 83.1部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、AEEA 7.4部とイソプロピルアルコール 17.3部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.3部とイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させてポリウレタン12を含有するポリウレタン樹脂溶液12を得た。
得られたポリウレタン樹脂溶液10の特性値は、以下の通りであった。
・樹脂固形分水酸基価:29.5mgKOH/g
・樹脂固形分酸価:9.5mgKOH/g
・樹脂固形分の数平均分子量:60,000
・樹脂固形分の重量平均分子量:120,000
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、3-メチル-1,5-ペンタンジオールとアジピン酸を原料とするポリエステルポリオール(水酸基価:55mgKOH/g) 100.0部、DMBA 6.7部、及びIPDI 38.1部を仕込み、窒素気流下に90℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 243.9部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、イソプロピルアルコール 109.0部を前記ウレタンプレポリマー溶液に加えて均一溶液とした後、AEEA 6.2部とイソプロピルアルコール 14.5部の混合溶液を添加し、40℃で5時間撹拌反応させた。その後、MEA 0.2部とイソプロピルアルコール 0.7部の混合溶液を添加し、40℃で2時間撹拌反応させて、ポリウレタン13を含有するポリウレタン樹脂溶液13を得た。
得られたポリウレタン樹脂溶液13の特性値は、以下の通りであった。
・樹脂固形分水酸基価:17.9mgKOH/g
・樹脂固形分酸価:18.2mgKOH/g
・樹脂固形分の数平均分子量:10,100
・樹脂固形分の重量平均分子量:30,300
・樹脂固形分アミン価:0.00mgKOH/g
・樹脂固形分濃度:30.3質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、2-メチル-1,3-プロパンジオールとアジピン酸を原料とするポリエステルポリオール(水酸基価:56mgKOH/g) 80.0部、ポリエチレングリコール(水酸基価:277mgKOH/g) 20.0部、及びIPDI 25.4部を仕込み、窒素気流下に90℃で20時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 83.6部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、酢酸エチル 113.3部、イソプロピルアルコール 106.0部、及びIPDA 4.9部からなる混合物に、前記ウレタンプレポリマー溶液を添加し、45℃で5時間攪拌反応させて、ポリウレタン14を含有するポリウレタン樹脂溶液14を得た。
得られたポリウレタン樹脂溶液14の特性値は、以下の通りであった。
・樹脂固形分水酸基価:0.0mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:48,600
・樹脂固形分の重量平均分子量:88,000
・樹脂固形分アミン価:2.10mgKOH/g
・樹脂固形分濃度:30.2質量%
攪拌機、温度計、環流冷却器及び窒素ガス導入管を備えた4つ口フラスコに、2-メチル-1,3-プロパンジオールと3-メチル-1,5-ペンタンジオールとネオペンチルグリコールとアジピン酸を原料とするポリエステルポリオール(水酸基価:22mgKOH/g) 100.0部、及びIPDI 9.2部を仕込み、窒素気流下に100℃で10時間反応させ、ウレタンプレポリマーを製造した後、これに酢酸エチル 72.8部を加えてウレタンプレポリマーの均一溶液(ウレタンプレポリマー溶液)とした。
次いで、酢酸エチル 99.1部、イソプロピルアルコール 92.6部、及びIPDA 4.2部からなる混合物に、前記ウレタンプレポリマー溶液を添加し、45℃で5時間攪拌反応させて、ポリウレタン15を含有するポリウレタン樹脂溶液15を得た。
得られたポリウレタン樹脂溶液15の特性値は、以下の通りであった。
・樹脂固形分水酸基価:0.0mgKOH/g
・樹脂固形分酸価:0.0mgKOH/g
・樹脂固形分の数平均分子量:52,700
・樹脂固形分の重量平均分子量:95,400
・樹脂固形分アミン価:2.40mgKOH/g
・樹脂固形分濃度:29.7質量%
N-プロピルアセテート(酢酸ノルマルプロピル) 40部、酢酸エチル 10部、藍顔料 11部、 塩酢ビ樹脂(塩化ビニル・酢酸ビニル共重合樹脂) 3部、イソプロピルアルコール 6部、分散剤 1部、及び合成例1で調製したポリウレタン樹脂溶液1 29部を混合し、混合物を得た。
得られた混合物100部に対して、ザーンカップ#3(離合社製)で15秒程度(25℃)となるように、42%のIPA/EtAc混合溶剤(イソプロピルアルコール/酢酸エチル=50/50(部/部))を加え、皮膜形成用組成物を調製した。
得られた皮膜形成用組成物を、密封容器に入れ、25℃環境下で24時間静置した。24時間放置後の皮膜形成用組成物の粘度をザーンカップ#3で測定し、以下の評価基準で評価した。
[評価基準]
3: 24時間静置後に著しい粘度増粘が認められない。
2: 24時間静置後に著しい粘度上昇が認められるが、撹拌することで元の粘度に戻る。
1: 24時間静置後に著しい粘度上昇が認められ、再撹拌後も粘度上昇が認められる。
調製した皮膜形成用組成物を、バーコーター#4を用いて、基材Aに、縦240mm×横80mmのベタ絵柄を印刷後、ドライヤーで乾燥し印刷層1を形成し、下記構成1の印刷物を得た。
<<印刷物の構成>>
・構成1:基材A-印刷層1
基材A:コロナ処理ポリエチレンテレフタレートフィルム(東洋紡績(株)製 エステルE5100 厚さ12μm)(PET)
[評価基準]
5:印刷皮膜が全く剥がれない。
4:印刷皮膜の80%以上がフィルムに残った。
3:印刷皮膜の50%以上~80%未満がフィルムに残った。
2:印刷皮膜の50%未満がフィルムに残った。
1:セロハンテープを貼り付ける際に、フィルムからセロハンテープに印刷皮膜が剥離してしまう。
調製した皮膜形成用組成物を、バーコーター#4を用いて、基材Aに、縦240mm×横80mmのベタ絵柄を印刷後、ドライヤーで乾燥し印刷層1を形成し、下記構成1の印刷物を得た。
<<印刷物の構成>>
・構成1:基材A-印刷層1
基材A:コロナ処理ポリエチレンテレフタレートフィルム(東洋紡績(株)製 エステルE5100 厚さ12μm)(PET)
下記各条件で剥離試験を実施し、各条件下における剥離のしやすさを比較した。
・水酸化ナトリウム1質量%、界面活性剤0.3%、85℃
・水酸化ナトリウム1質量%、界面活性剤なし、85℃
ここで、界面活性剤は、ノニオン系界面活性剤を用いた。
剥離試験は、各条件での処理時間を15分として評価を行った。なお処理5分以内に剥離すればかなり高い性能であることを示す。
印刷物を20mm×20mmのサイズにカットした試験片を溶液に浸漬してスターラーで撹拌した。撹拌後に剥離状態を確認した後、指で印刷物を擦り、擦ることで塗膜が剥離するかも確認した。
上記の条件におけるインキ塗膜の剥離性を下記評価基準に従い評価した。
5: 5分以内の撹拌でインキ塗膜の脱離を確認。擦ると完全に脱離
4: 15分の撹拌でインキ塗膜の脱離を確認。擦ると完全に脱離
3: 15分の撹拌でインキ塗膜の脱離を未確認。擦ると完全に脱離
2: 15分の撹拌でインキ塗膜の脱離を未確認。擦ると部分的に脱離
1: 15分の撹拌でインキ塗膜の脱離を未確認。擦っても脱離を未確認
実施例1において、皮膜形成用組成物の配合を、下記表4~表7に記載の配合に変更した以外は、実施例1と同様にして、皮膜形成用組成物を調製した。
調製した皮膜形成用組成物について、実施例1と同様に、評価を行った。結果を表4~表7に示す。
Claims (13)
- アルカリ溶液での処理により脱離する皮膜を基材Aの表面に直接又は他の層を介して形成するための脱離可能な皮膜形成用組成物であって、
水酸基価を有し、重量平均分子量が45,000以上かつ数平均分子量が10,000以上であるウレタン樹脂を含有する、皮膜形成用組成物。 - 前記ウレタン樹脂の酸価が、15.0mgKOH/g未満である、請求項1に記載の皮膜形成用組成物。
- 前記水酸基価が、1.0mgKOH/g~30.0mgKOH/gである、請求項1に記載の皮膜形成用組成物。
- 前記ウレタン樹脂が、構成成分として、ポリエステルポリオール、及びポリエーテルポリオールの少なくともいずれかを含む、請求項1に記載の皮膜形成用組成物。
- 着色剤を含有する、請求項1に記載の皮膜形成用組成物。
- 印刷インキとして用いられる、請求項5に記載の皮膜形成用組成物。
- 前記印刷インキが、有機溶剤系インキである、請求項6に記載の皮膜形成用組成物。
- プライマー、又はニスとして用いられる、請求項1に記載の皮膜形成用組成物。
- 基材Aの表面に直接又は他の層を介して、請求項1から8のいずれかに記載の皮膜形成用組成物からなる皮膜を有する印刷物。
- 前記皮膜が、印刷層、プライマー層、及びニス層から選ばれる少なくとも一つである、請求項9に記載の印刷物。
- 請求項10に記載の印刷物に対して、前記印刷層の前記基材Aが配置されている面とは反対側の面に、基材Bを配置し、前記印刷物と前記基材Bとを積層してなる積層体。
- 請求項10に記載の印刷物に対して、アルカリ溶液で処理することにより前記皮膜を基材Aから脱離して得られるリサイクル基材Aの製造方法。
- 請求項11に記載の積層体に対して、アルカリ溶液で処理することにより前記皮膜とともに基材Bを脱離して得られるリサイクル基材Aの製造方法。
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