WO2011071031A1 - 塩化ビニル系樹脂ラテックス、その製造方法及びそれを用いた感熱転写受像用シート - Google Patents
塩化ビニル系樹脂ラテックス、その製造方法及びそれを用いた感熱転写受像用シート Download PDFInfo
- Publication number
- WO2011071031A1 WO2011071031A1 PCT/JP2010/071870 JP2010071870W WO2011071031A1 WO 2011071031 A1 WO2011071031 A1 WO 2011071031A1 JP 2010071870 W JP2010071870 W JP 2010071870W WO 2011071031 A1 WO2011071031 A1 WO 2011071031A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vinyl chloride
- vinyl
- monomer
- chloride resin
- epoxy group
- Prior art date
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- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims abstract description 214
- 229920000126 latex Polymers 0.000 title claims abstract description 162
- 239000004816 latex Substances 0.000 title claims abstract description 161
- 229920005989 resin Polymers 0.000 title claims abstract description 155
- 239000011347 resin Substances 0.000 title claims abstract description 155
- 238000012546 transfer Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title abstract description 3
- 239000000178 monomer Substances 0.000 claims abstract description 166
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 104
- 239000004094 surface-active agent Substances 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229920001577 copolymer Polymers 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 102
- 125000003700 epoxy group Chemical group 0.000 claims description 89
- 238000006116 polymerization reaction Methods 0.000 claims description 88
- 239000012736 aqueous medium Substances 0.000 claims description 27
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 22
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 20
- 229920001567 vinyl ester resin Polymers 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 19
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012986 chain transfer agent Substances 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000003505 polymerization initiator Substances 0.000 claims description 9
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 7
- 239000011342 resin composition Substances 0.000 claims description 6
- 238000007720 emulsion polymerization reaction Methods 0.000 claims description 5
- -1 vinyl compound Chemical class 0.000 abstract description 43
- 238000003860 storage Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 67
- 238000011156 evaluation Methods 0.000 description 20
- 239000000123 paper Substances 0.000 description 17
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 15
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 14
- 239000000975 dye Substances 0.000 description 14
- 229920000642 polymer Polymers 0.000 description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 238000005187 foaming Methods 0.000 description 12
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 10
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 description 9
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000004383 yellowing Methods 0.000 description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 150000002148 esters Chemical class 0.000 description 8
- 239000001530 fumaric acid Substances 0.000 description 8
- 239000000976 ink Substances 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 8
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 7
- 239000011976 maleic acid Substances 0.000 description 7
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000003945 anionic surfactant Substances 0.000 description 6
- 150000001735 carboxylic acids Chemical class 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000003999 initiator Substances 0.000 description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229920003169 water-soluble polymer Polymers 0.000 description 6
- 229940056585 ammonium laurate Drugs 0.000 description 5
- VJCJAQSLASCYAW-UHFFFAOYSA-N azane;dodecanoic acid Chemical compound [NH4+].CCCCCCCCCCCC([O-])=O VJCJAQSLASCYAW-UHFFFAOYSA-N 0.000 description 5
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 5
- 239000002736 nonionic surfactant Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000000859 sublimation Methods 0.000 description 5
- 230000008022 sublimation Effects 0.000 description 5
- ARYIITVULFDIQB-UHFFFAOYSA-N (2-methyloxiran-2-yl)methyl prop-2-enoate Chemical compound C=CC(=O)OCC1(C)CO1 ARYIITVULFDIQB-UHFFFAOYSA-N 0.000 description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 4
- KZPMXWBRKHQGQJ-UHFFFAOYSA-N 2-methyl-4-(oxiran-2-yl)but-2-enoic acid oxiran-2-ylmethyl 2-methylprop-2-enoate Chemical compound O1C(CC=C(C(=O)O)C)C1.C(C(=C)C)(=O)OCC1CO1 KZPMXWBRKHQGQJ-UHFFFAOYSA-N 0.000 description 4
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 4
- 108010010803 Gelatin Proteins 0.000 description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 239000002280 amphoteric surfactant Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000006172 buffering agent Substances 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000003093 cationic surfactant Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 229920000159 gelatin Polymers 0.000 description 4
- 239000008273 gelatin Substances 0.000 description 4
- 235000019322 gelatine Nutrition 0.000 description 4
- 235000011852 gelatine desserts Nutrition 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000002609 medium Substances 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 4
- JUSDSRFZMDUYNU-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate;2-(oxiran-2-ylmethyl)prop-2-enoic acid Chemical compound C=CC(=O)OCC1CO1.OC(=O)C(=C)CC1CO1 JUSDSRFZMDUYNU-UHFFFAOYSA-N 0.000 description 4
- 229920001515 polyalkylene glycol Polymers 0.000 description 4
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 4
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 4
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 4
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000002211 L-ascorbic acid Substances 0.000 description 3
- 235000000069 L-ascorbic acid Nutrition 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000005907 alkyl ester group Chemical group 0.000 description 3
- 150000008051 alkyl sulfates Chemical class 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 229960005070 ascorbic acid Drugs 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- RZMWTGFSAMRLQH-UHFFFAOYSA-L disodium;2,2-dihexyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCC RZMWTGFSAMRLQH-UHFFFAOYSA-L 0.000 description 3
- 239000002612 dispersion medium Substances 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 3
- ZQZUENMXBZVXIZ-UHFFFAOYSA-N ethenyl tetradecanoate Chemical compound CCCCCCCCCCCCCC(=O)OC=C ZQZUENMXBZVXIZ-UHFFFAOYSA-N 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 3
- LWNSNYBMYBWJDN-UHFFFAOYSA-N octyl 3-sulfanylpropanoate Chemical compound CCCCCCCCOC(=O)CCS LWNSNYBMYBWJDN-UHFFFAOYSA-N 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 230000000379 polymerizing effect Effects 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 229940114930 potassium stearate Drugs 0.000 description 3
- HSJXWMZKBLUOLQ-UHFFFAOYSA-M potassium;2-dodecylbenzenesulfonate Chemical compound [K+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HSJXWMZKBLUOLQ-UHFFFAOYSA-M 0.000 description 3
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 3
- 239000013055 pulp slurry Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- URLJMZWTXZTZRR-UHFFFAOYSA-N sodium myristyl sulfate Chemical compound CCCCCCCCCCCCCCOS(O)(=O)=O URLJMZWTXZTZRR-UHFFFAOYSA-N 0.000 description 3
- 229950005425 sodium myristyl sulfate Drugs 0.000 description 3
- 235000011069 sorbitan monooleate Nutrition 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000001694 spray drying Methods 0.000 description 3
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 2
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 2
- IOSXLUZXMXORMX-UHFFFAOYSA-N 1-ethenoxypentane Chemical compound CCCCCOC=C IOSXLUZXMXORMX-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- ZETCGWYACBNPIH-UHFFFAOYSA-N azane;sulfurous acid Chemical compound N.OS(O)=O ZETCGWYACBNPIH-UHFFFAOYSA-N 0.000 description 2
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 2
- 229960003237 betaine Drugs 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 150000001733 carboxylic acid esters Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229930016911 cinnamic acid Natural products 0.000 description 2
- 235000013985 cinnamic acid Nutrition 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 239000012933 diacyl peroxide Substances 0.000 description 2
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 2
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 2
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 2
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 2
- 239000004200 microcrystalline wax Substances 0.000 description 2
- 235000019808 microcrystalline wax Nutrition 0.000 description 2
- UPHWVVKYDQHTCF-UHFFFAOYSA-N octadecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCCCCCCCN UPHWVVKYDQHTCF-UHFFFAOYSA-N 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 2
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 2
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 2
- 229940043349 potassium metabisulfite Drugs 0.000 description 2
- 235000010263 potassium metabisulphite Nutrition 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
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- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- BEQKKZICTDFVMG-UHFFFAOYSA-N 1,2,3,4,6-pentaoxepane-5,7-dione Chemical compound O=C1OOOOC(=O)O1 BEQKKZICTDFVMG-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- 241000220479 Acacia Species 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- VXXJPRMLSOWMOQ-UHFFFAOYSA-N CCCCCCCCCCCCC1=CN(CCO)C(CC(O)=O)=N1 Chemical compound CCCCCCCCCCCCC1=CN(CCO)C(CC(O)=O)=N1 VXXJPRMLSOWMOQ-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 235000010643 Leucaena leucocephala Nutrition 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- YHAIUSTWZPMYGG-UHFFFAOYSA-L disodium;2,2-dioctyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCCCC YHAIUSTWZPMYGG-UHFFFAOYSA-L 0.000 description 1
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229960001031 glucose Drugs 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000005634 peroxydicarbonate group Chemical group 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229940114926 stearate Drugs 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/02—Monomers containing chlorine
- C08F214/04—Monomers containing two carbon atoms
- C08F214/06—Vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
- C08F220/325—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals containing glycidyl radical, e.g. glycidyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/02—Dye diffusion thermal transfer printing (D2T2)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/06—Printing methods or features related to printing methods; Location or type of the layers relating to melt (thermal) mass transfer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Definitions
- the present invention relates to a vinyl chloride resin latex containing no surfactant, a method for producing the latex, a thermal transfer image receiving sheet using the same, and a vinyl chloride resin containing no surfactant.
- a vinyl chloride resin latex is prepared by mixing a vinyl chloride monomer or a mixed monomer of a vinyl chloride monomer and a monomer copolymerizable therewith in a polymerization can in the presence of a surfactant and a polymerization initiator. Polymerization is carried out in an aqueous medium, and the polymerization reaction proceeds while maintaining the polymerization can internal temperature at a predetermined temperature. As the polymerization conversion rate increases, the unreacted amount of the charged monomer decreases, and the polymerization can internal pressure decreases. Then, the polymerization reaction is completed when the pressure inside the polymerization can corresponding to the desired polymerization conversion rate is reached.
- a surfactant is contained in the vinyl chloride resin obtained by drying the vinyl chloride resin latex.
- the surfactant may be removed by washing the vinyl chloride resin with water or the like, but it has been difficult to remove them sufficiently.
- a product manufactured using a resin containing a large amount of a surfactant may be inferior in water resistance and adhesiveness compared to a product manufactured using a resin having a low surfactant content.
- unreacted monomers generally remain in the vinyl chloride latex, the unreacted monomers are recovered under heating and reduced pressure conditions. At this time, when the surfactant is contained in the latex, a large amount of foaming occurs, and there is a problem that the processing efficiency of the latex deteriorates.
- Patent Document 1 and Non-Patent Document 1 several proposals have been made on vinyl chloride resins that do not allow surfactants to remain in the resin as much as possible.
- Patent Document 1 proposes a reactive emulsifier having a polymerizable double bond capable of chemical bonding to a resin main chain for the purpose of preventing release from the resin.
- Non-Patent Document 1 proposes soap-free polymerization in which no surfactant is used.
- the reactive emulsifier proposed in Patent Document 1 is not completely chemically bonded to the resin, and there is a problem that some reactive emulsifiers are still present free from the resin.
- no surfactant is used at all, when polymerization is carried out by increasing the amount of vinyl chloride monomer added, the latex agglomerates during the polymerization, so the solid content concentration in the latex is 20%.
- Patent Documents 2 and 3 describe vinyl chloride copolymers made of vinyl chloride and glycidyl methacrylate as vinyl chloride copolymers made of vinyl compounds other than vinyl acetate and vinyl chloride.
- Patent Document 2 describes a vinyl chloride resin containing sodium lauryl sulfate as a surfactant
- Patent Document 3 describes examples of vinyl chloride polymers containing a polyalkylene glycol as a surfactant.
- the solid content concentration not containing these surfactant components is 25% by weight or more.
- a certain vinyl chloride resin latex and its manufacturing method have not been developed so far.
- the thermal transfer method a thermal sublimation transfer method and a thermal fusion transfer method are widely used.
- the heat-sensitive sublimation transfer method uses a sublimation dye as a color material, and uses a heating device such as a thermal head or a laser light-emitting element in which heat generation is controlled according to image information.
- the dye in the layer is transferred to a transfer medium such as a thermal transfer image receiving sheet to form an image.
- This heat-sensitive sublimation transfer system can control the amount of dye transfer in dot units by heating for a very short time.
- a thermal transfer image-receiving sheet has at least a dye image-receiving layer (receiving layer) and a heat insulating layer formed on a support.
- the receiving layer forming resin vinyl chloride resin is used because it is excellent in dyeing and releasability, and abnormal transfer such as fusion does not occur between the thermal transfer sheet and the thermal transfer image receiving sheet during thermal transfer. Has been.
- the image transferred to the thermal transfer image receiving sheet is required to be stably fixed over a long period of time.
- improvement in image durability is required.
- a water-soluble and water-dispersible resin as the receiving layer-forming resin.
- Patent Document 4 an aqueous dispersion of a polyester resin is disclosed (Patent Document 4).
- the UV absorber include benzotriazole compounds and benzophenone compounds.
- these organic compounds capable of absorbing ultraviolet rays are unstable because of their relatively low molecular weight, and when the receiving sheet is stored for a long period of time, yellowing of white paper may occur.
- the proposal which adds a water-soluble polymeric ultraviolet absorber is made (patent document 5).
- a polymer ultraviolet absorber is added in a large amount in order to sufficiently improve the light resistance, there is a problem that the water resistance is lowered.
- Japanese Unexamined Patent Publication No. 7-284644 Japanese Unexamined Patent Publication No. 61-53367 Japanese Patent Laid-Open No. 9-118728 Japanese Unexamined Patent Publication No. 6-234269 Japanese Unexamined Patent Publication No. 2003-54142
- the present invention has been made in view of the above-mentioned problems.
- the foam of the latex is small and no surfactant is contained.
- vinyl chloride resin latex its production method, vinyl chloride resin not containing surfactant, and thermal transfer image-receiving sheet with good water resistance, no storage yellowing, and excellent image durability and light resistance. The purpose is to do.
- the gist of the present invention resides in the following (1) to (15).
- a vinyl chloride containing a copolymer containing vinyl chloride and an epoxy group-containing vinyl, and the copolymer having an epoxy group-containing vinyl in the copolymer of 0.1 wt% or more and less than 3 wt% A vinyl chloride resin latex characterized by containing no surfactant and having a solid content concentration of 25% by weight or more in a vinyl chloride resin latex.
- a vinyl chloride resin latex containing no surfactant, containing no surfactant and having a solid content concentration of 25% by weight or more in the vinyl chloride resin latex is acetate.
- the amount of the epoxy group-containing vinyl monomer is 0.1% by weight or more and less than 3% by weight based on the total of the vinyl chloride monomer and the epoxy group-containing vinyl monomer,
- a part of the vinyl chloride monomer is dividedly added or continuously added to the aqueous medium, and the vinyl chloride resin latex according to (5) or (6) Production method.
- a vinyl chloride resin latex composition comprising the vinyl chloride resin latex according to any one of (1) to (4).
- (10) A vinyl chloride resin powder obtained from the vinyl chloride resin latex according to any one of (1) to (4).
- a vinyl chloride resin composition comprising the vinyl chloride resin powder according to (10) and an organic solvent.
- a thermal transfer image-receiving sheet having a heat insulating layer and a receiving layer on a support, wherein the receiving layer has an epoxy group-containing vinyl content of 0.1% by weight relative to 100 parts by weight of the vinyl chloride resin and the vinyl chloride resin. 1 to 3 parts by weight and no surfactant, and the vinyl chloride resin is an epoxy group-containing vinyl monomer based on the total of the vinyl chloride monomer and the epoxy group-containing vinyl monomer.
- a vinyl chloride resin latex obtained by emulsion-polymerizing a vinyl chloride monomer and an epoxy group-containing vinyl monomer in an aqueous medium not containing a surfactant in an amount of 0.1% by weight or more.
- the present inventors have carried out specific polymerization, whereby the polymerization proceeds stably, and the solid content concentration in the latex is 25% by weight or more.
- the thermal transfer image-receiving sheet having a receiving layer formed using the vinyl chloride resin latex is found to have good water resistance, no storage yellowing, and excellent image durability and light resistance. It was. That is, the present invention is a copolymer containing vinyl chloride and an epoxy group-containing vinyl, or a copolymer containing vinyl chloride, an epoxy group-containing vinyl and a carboxylic acid vinyl ester, and the copolymer contains an epoxy group.
- a vinyl chloride resin latex containing a copolymer in an amount of 0.1% by weight to less than 3% by weight of vinyl, containing no surfactant, and having a solid content in the vinyl chloride resin latex The present invention relates to a vinyl chloride resin latex characterized by being 25% by weight or more, a production method thereof, and a thermal transfer image receiving sheet using the same.
- the heat-sensitive transfer image-receiving sheet of the present invention has excellent water resistance, no storage yellowing, and excellent image durability and light resistance.
- the vinyl chloride resin latex of the present invention is a copolymer containing vinyl chloride and an epoxy group-containing vinyl, and the amount of the epoxy group-containing vinyl in the copolymer is 0.1% by weight or more and less than 3% by weight. And contains a copolymer.
- a copolymer of vinyl chloride and an epoxy group-containing vinyl By including a copolymer of vinyl chloride and an epoxy group-containing vinyl, a film obtained by applying and drying a latex is excellent in thermal stability.
- the epoxy group-containing vinyl is, for example, glycidyl ester of (meth) acrylic acid such as glycidyl methacrylate (glycidyl methacrylate), glycidyl acrylate (glycidyl acrylate), ⁇ -methyl glycidyl methacrylate, ⁇ -methyl glycidyl acrylate, etc .; And diglycidyl esters of vinyl polymerizable unsaturated carboxylic acids such as maleic acid, fumaric acid and itaconic acid.
- the vinyl chloride resin latex of the present invention is a copolymer containing vinyl chloride, an epoxy group-containing vinyl and a carboxylic acid vinyl ester, and the epoxy group-containing vinyl in the copolymer is 0.1% by weight or more.
- the copolymer is contained in an amount of less than 3% by weight.
- the polymer can have a hydroxyl group by a saponification reaction of the carboxylic acid vinyl ester.
- examples of the vinyl carboxylate include vinyl acetate, vinyl propionate, vinyl myristate, vinyl benzoate, and the like.
- the vinyl chloride resin latex of the present invention contains a copolymer in such an amount that the epoxy group-containing vinyl in the copolymer is 0.1 wt% or more and less than 3 wt%.
- the epoxy group-containing vinyl is less than 0.1% by weight, the latex does not become a latex containing no surfactant having a solid content concentration of 25% by weight or more.
- the vinyl chloride resin latex of the present invention does not contain a surfactant.
- surfactant refers to a substance that exhibits remarkable surface activity (action that dissolves in water and lowers the surface tension of water) in a small amount.
- the vinyl chloride resin latex of the present invention can contain a chain transfer agent, a reducing agent, a buffering agent and the like. These chain transfer agent, reducing agent, buffering agent and the like are added for the purpose of stabilizing polymerization and reducing the amount of scale generated, for example, in producing the vinyl chloride resin latex of the present invention.
- the chain transfer agent is not particularly limited as long as the degree of polymerization of the vinyl chloride polymer can be adjusted.
- halogenated hydrocarbons such as trichloroethylene and carbon tetrachloride; 2-mercaptoethanol, 3-mercaptopropion
- mercaptans such as octyl acid and dodecyl mercaptan
- aldehydes such as acetone and n-butyraldehyde.
- Examples of the reducing agent include sodium sulfite, ammonium sulfite, sodium hydrogen sulfite, ammonium hydrogen sulfite, ammonium thiosulfate, potassium metabisulfite, sodium dithionite, sodium formaldehyde sulfoxylate, L-ascorbic acid, dextst Examples include rose, ferrous sulfate, copper sulfate and the like.
- the vinyl chloride resin latex of the present invention has a solid content concentration of 25% by weight or more in the vinyl chloride resin latex.
- the solid content concentration is less than 25% by weight, when the latex is spray-dried to obtain a vinyl chloride resin, a large amount of water must be removed, which deteriorates productivity.
- the vinyl chloride resin latex of the present invention is obtained by polymerizing a vinyl chloride monomer and an epoxy group-containing vinyl monomer, or a vinyl chloride monomer, an epoxy group-containing vinyl monomer and a carboxylic acid vinyl ester monomer. However, the polymerization is performed in such an amount that the epoxy group-containing vinyl monomer is 0.1% by weight or more and less than 3% by weight with respect to the total monomer.
- the weight ratio of total monomer / water is 1/3 or more, and a part or all of the epoxy group-containing vinyl monomer is being polymerized. It is necessary to add them in an aqueous medium in divided portions or continuously.
- the epoxy group-containing vinyl monomer is a total monomer containing less than 0.1% by weight based on the total monomer, it is necessary to add a surfactant to ensure polymerization stability.
- the total monomer / water weight ratio is less than 1/3, the solid content concentration in the resulting latex is 25% by weight or less. Therefore, when the latex is spray-dried to obtain a vinyl chloride resin. In addition, a large amount of water must be removed, and productivity is deteriorated.
- Polymerization is stabilized even when the epoxy group-containing vinyl content in the whole monomer is small by adding a part or all of the epoxy group-containing vinyl monomer into the aqueous medium in a divided or continuous manner during the polymerization. . Further, the smaller the amount of epoxy group-containing vinyl in the whole monomer, the more preferable is the vinyl chloride resin latex because the cost is reduced.
- Polymerization by adding a portion of an epoxy group-containing vinyl monomer separately or continuously in an aqueous medium means that all of the epoxy group-containing vinyl monomer is added to the aqueous medium prior to the start of polymerization.
- the polymerization is started, and the remaining epoxy group-containing vinyl monomer is added in portions or continuously to the aqueous medium during the polymerization to carry out the polymerization.
- the epoxy group-containing vinyl monomer concentration in the aqueous medium is high, the solubility of the vinyl chloride resin obtained by drying the resulting vinyl chloride resin latex in an organic solvent such as methyl ethyl ketone deteriorates. Because of this tendency, it is preferable to add the epoxy group-containing vinyl monomer content in small portions or in a continuous manner in the presence of the vinyl chloride monomer.
- the polymerization method used in the present invention includes soap-free polymerization in which a predetermined monomer is polymerized in an aqueous medium not containing a surfactant in the presence of a polymerization initiator, and particles obtained by soap-free polymerization.
- Examples include a method of polymerizing at a polymerization temperature of 30 to 80 ° C. to obtain a vinyl chloride resin latex by a soap-free seed emulsion polymerization method in which polymerization is performed using as a seed.
- the polymerization does not have to be performed in the presence of a chain transfer agent, a reducing agent or both, but by performing the polymerization in the presence of a chain transfer agent, a reducing agent or both, the polymerization is stabilized as described above.
- the amount of scale generated decreases.
- the addition of the reducing agent contributes to the initiator decomposition by the redox system, it is possible to reduce the residual amount of the undecomposed initiator remaining in the latex after the completion of the polymerization.
- the chain transfer agent is not particularly limited as long as it can adjust the degree of polymerization of the vinyl chloride polymer.
- halogenated hydrocarbons such as trichloroethylene and carbon tetrachloride; 2-mercaptoethanol, octyl 3-mercaptopropionate, Examples include mercaptans such as dodecyl mercaptan; aldehydes such as acetone and n-butyraldehyde.
- Examples of the reducing agent include sodium sulfite, ammonium sulfite, sodium hydrogen sulfite, ammonium hydrogen sulfite, ammonium thiosulfate, potassium metabisulfite, sodium dithionite, sodium formaldehyde sulfoxylate, L-ascorbic acid, dextrose, Examples thereof include ferrous sulfate and copper sulfate.
- epoxy group-containing vinyl monomer examples include glycidyl esters of (meth) acrylic acid such as glycidyl methacrylate (glycidyl methacrylate), glycidyl acrylate (glycidyl acrylate), ⁇ -methyl glycidyl methacrylate, and ⁇ -methyl glycidyl acrylate;
- examples thereof include diglycidyl esters of vinyl polymerizable unsaturated carboxylic acids such as maleic acid, fumaric acid, and itaconic acid, and these can be used alone or in any combination of two or more.
- carboxylic acid vinyl ester monomer examples include vinyl acetate, vinyl propionate, vinyl myristate, vinyl benzoate and the like, and these may be used alone or in any combination of two or more. it can. Moreover, the monomer which can be copolymerized with other vinyl chlorides can also be contained in a monomer as needed.
- Other monomers copolymerizable with vinyl chloride include, for example, unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid and fumaric acid or their anhydrides; esters of acrylic acid such as methyl, ethyl and butyl , Esters of methyl methacrylate, methyl, ethyl and butyl; unsaturated carboxylic esters such as maleic acid ester, fumaric acid ester and cinnamic acid ester; vinyl ethers such as vinyl methyl ether, vinyl amyl ether and vinyl phenyl ether Monoolefins such as ethylene, propylene, butene and pentene; vinylidene chloride; styrene and derivatives thereof; acrylonitrile; monomers such as methacrylonitrile, and these may be used alone or in combination of two or more. Can be used in combination.
- unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid
- Examples of the polymerization initiator used in the present invention include water-soluble initiators such as potassium persulfate and ammonium persulfate, azo compounds represented by azobisisobutyronitrile, lauroyl peroxide, and t-butylperoxypivalate. , Oil-soluble initiators such as diacyl peroxide, peroxyester, peroxydicarbonate, and the like, which can be used alone or in combination of two or more.
- the aqueous medium used in the present invention refers to water and other water-soluble polymerization aids (buffering agents, etc.), and is a medium in which an organic layer such as a vinyl chloride monomer is dispersed.
- Surfactants not used in the production method of the present invention include, for example, alkyl sulfates such as sodium lauryl sulfate and myristyl sulfate, alkylbenzene sulfonates such as sodium dodecylbenzenesulfonate and potassium dodecylbenzenesulfonate, and dioctyl.
- alkyl sulfates such as sodium lauryl sulfate and myristyl sulfate
- alkylbenzene sulfonates such as sodium dodecylbenzenesulfonate and potassium dodecylbenzenesulfonate
- dioctyl dioctyl
- Anionic surfactants such as sodium sulfosuccinate, sulfosuccinates such as sodium dihexyl sulfosuccinate, fatty acid salts such as ammonium laurate and potassium stearate, polyoxyethylene alkyl sulfates, polyoxyethylene alkylaryl sulfates, Sorbitan esters such as sorbitan monooleate, polyoxyethylene sorbitan monostearate, polyoxyethylene alkylphenyl ether Le, polyoxyethylene alkyl esters, polyalkylene glycols, polyvinyl alcohol, partially saponified polyvinyl alcohol, partially saponified polymethyl methacrylate, nonionic surfactants such as polyacrylic acid and salts thereof.
- a vinyl chloride resin latex composition By containing the vinyl chloride resin latex of the present invention and various additives, a vinyl chloride resin latex composition can be obtained.
- additives include water, pigments, dyes, surfactants, tackifier resins, metal oxides, thickeners, fillers, film-forming aids, ultraviolet absorbers, antioxidants, plasticizers, and vulcanization. Agents, vulcanization accelerators, antifoaming agents, alkoxysilane compounds, and the like.
- Any method may be used as a method for obtaining the vinyl chloride resin powder from the vinyl chloride resin latex.
- a method by spray drying or fluidized drying is preferable, and a method by spray drying is more preferable.
- the dryer used for spray drying may be a commonly used dryer.
- SPRAY DAYING HANDBOOK K. Masters, 3rd edition, 1979, published by George Godwin Limited
- page 121, 4th. 10 Various spray dryers (for example, Standard chamber, Tall-form nozzle chamber, etc.) described in FIG.
- a vinyl chloride resin composition can also be obtained by dissolving the vinyl chloride resin powder of the present invention in an organic solvent.
- various additives may be contained in the vinyl chloride resin composition.
- the organic solvent include alcohols such as methanol, ethanol, propanol and butanol, alcohol ethers such as ethylene glycol monoethyl ether and ethylene glycol monobutyl ether, ketones such as acetone and methyl ethyl ketone, tetrahydrofuran, dioxane and the like.
- hydrophobic organic solvents such as toluene, xylene, ethyl acetate and butyl acetate.
- additives include pigments, dyes, surfactants, tackifying resins, metal oxides, thickeners, fillers, film-forming aids, ultraviolet absorbers, antioxidants, plasticizers, vulcanizing agents, Examples thereof include a vulcanization accelerator, an antifoaming agent, and an alkoxysilane compound.
- uses of the above-mentioned vinyl chloride resin latex, vinyl chloride resin latex composition, vinyl chloride resin, and vinyl chloride resin composition include, for example, coating, adhesive, sealant, ink, paint, heat seal, and magnetic tape. And thermal transfer recording paper.
- the thermal transfer image-receiving sheet of the present invention has a heat insulating layer and a receiving layer on a support, and the receiving layer is based on 100 parts by weight of the vinyl chloride resin and the vinyl chloride resin. It contains 0.1 to 3 parts by weight of an epoxy group-containing vinyl and does not contain a surfactant.
- a base layer is preferably formed between the receiving layer and the support in order to adjust the glossiness and chargeability of the heat-sensitive transfer image-receiving sheet. It is preferable to form an underlayer, a heat insulating layer, and a receiving layer in this order.
- the receiving layer functions to receive the dye transferred from the ink sheet and maintain the formed image.
- the receiving layer contains at least a vinyl chloride resin capable of receiving a dye.
- the receiving layer contains 0.1 to 3 parts by weight of an epoxy group-containing vinyl with respect to 100 parts by weight of the vinyl chloride resin. When the epoxy group-containing vinyl monomer is less than 0.1 parts by weight, the receiving layer does not contain a surfactant. On the other hand, when the amount exceeds 3 parts by weight, the surface smoothness of the thermal transfer image-receiving sheet is deteriorated.
- epoxy group-containing vinyl examples include glycidyl esters of (meth) acrylic acid such as glycidyl methacrylate (glycidyl methacrylate), glycidyl acrylate (glycidyl acrylate), ⁇ -methyl glycidyl methacrylate, ⁇ -methyl glycidyl acrylate;
- examples include diglycidyl esters of vinyl polymerizable unsaturated carboxylic acids such as fumaric acid and itaconic acid, and these may be used alone or in any combination of two or more.
- the receiving layer does not contain a surfactant. By not containing a surfactant, the water resistance of the resulting thermal transfer image-receiving sheet can be improved.
- Surfactants not contained in the receiving layer include anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants. For example, alkyl such as sodium lauryl sulfate and myristyl sulfate.
- Sulfate esters alkylbenzene sulfonates such as sodium dodecylbenzenesulfonate, potassium dodecylbenzenesulfonate, sulfosuccinates such as sodium dioctylsulfosuccinate, sodium dihexylsulfosuccinate, fatty acid salts such as ammonium laurate, potassium stearate, poly Anionic surfactants such as oxyethylene alkyl sulfates and polyoxyethylene alkylaryl sulfates, sorbitan monooleate, polyoxyethylene sorbitan Sorbitan esters such as stearate, polyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl esters, polyalkylene glycols, polyvinyl alcohol, partially saponified polyvinyl alcohol, partially saponified polymethyl methacrylate, polyacrylic acid and the like
- Nonionic surfactants such as salts, cationic sur
- the receiving layer can also contain, for example, a polymer latex, a water-soluble polymer, a release agent and the like depending on the purpose.
- the polymer latex can be contained in the receiving layer in order to adjust the elastic modulus of the film.
- examples of the polymer latex include acrylic polymers, polyesters, rubbers (for example, SBR resin), polyurethanes, polyvinyl acetate copolymers, polyolefins, and the like.
- the water-soluble polymer can be contained in the receiving layer because it can prevent the dye dyed in the receiving layer from diffusing and can form a recorded image with little change with time in the transferred image.
- examples of the water-soluble polymer include polyvinyl alcohols and gelatin, among which gelatin is preferable.
- the release agent can be contained in the receiving layer in order to prevent thermal fusion of the thermal transfer receiving sheet and the thermal transfer sheet during image formation.
- Various wax dispersions can be used as the release agent.
- a known dispersion can be used as the wax dispersion.
- examples of preferable compounds include montan wax and derivatives thereof, and microcrystalline wax.
- the vinyl chloride resin latex is used for forming the receiving layer, and contains 0.1 to 3 parts by weight of an epoxy group-containing vinyl with respect to 100 parts by weight of the vinyl chloride resin and the vinyl chloride resin. And it does not contain a surfactant.
- the vinyl chloride resin latex is an amount in which the epoxy group-containing vinyl monomer is 0.1% by weight or more based on the total of the vinyl chloride monomer and the epoxy group-containing vinyl monomer.
- the epoxy group-containing vinyl monomer can be produced by emulsion polymerization in an aqueous medium containing no surfactant. Two or more kinds of vinyl chloride resin latex can be blended and used as the vinyl chloride resin latex.
- Emulsion polymerization uses water or a mixed solvent of water and an organic solvent that can be mixed with water (for example, methanol, ethanol, acetone, etc.) as a dispersion medium, and a vinyl chloride monomer amount of 5 to 150% by weight based on the dispersion medium And a mixture containing an epoxy group-containing vinyl monomer, the epoxy group-containing vinyl monomer being 0.1% by weight or more based on the total of the vinyl chloride monomer and the epoxy group-containing vinyl monomer,
- the polymerization is carried out by stirring in an aqueous medium not containing a surfactant using a polymerization initiator at about 30 to 100 ° C., preferably 60 to 90 ° C. for 3 to 24 hours.
- epoxy group-containing vinyl monomer examples include glycidyl esters of (meth) acrylic acid such as glycidyl methacrylate (glycidyl methacrylate), glycidyl acrylate (glycidyl acrylate), ⁇ -methyl glycidyl methacrylate, and ⁇ -methyl glycidyl acrylate;
- examples thereof include diglycidyl esters of vinyl polymerizable unsaturated carboxylic acids such as maleic acid, fumaric acid and itaconic acid, and these can be used alone or in any combination of two or more.
- the epoxy group-containing vinyl monomer When the epoxy group-containing vinyl monomer is less than 0.1% by weight based on the total of the vinyl chloride monomer and the epoxy group-containing vinyl monomer, the emulsion polymerization becomes unstable and a vinyl chloride resin latex is obtained. I can't.
- the polymerization proceeds stably even when the epoxy group-containing vinyl monomer is not contained, Can get.
- the solid content concentration is low, it is not suitable as a receiving layer coating solution.
- the vinyl chloride monomer and the epoxy group-containing vinyl monomer may contain a carboxylic acid vinyl ester monomer.
- carboxylic acid vinyl ester monomer examples include vinyl acetate, vinyl propionate, vinyl myristate, vinyl benzoate and the like, and these can be used alone or in any combination of two or more.
- the monomer which can be copolymerized with vinyl chloride can also be contained as needed.
- monomers copolymerizable with vinyl chloride include unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid and fumaric acid or their anhydrides; esters of acrylic acid such as methyl, ethyl and butyl.
- polymerization initiator examples include water-soluble initiators such as potassium persulfate and ammonium persulfate, azo compounds represented by azobisisobutyronitrile, lauroyl peroxide, t-butylperoxypivalate, diacyl peroxide, Examples thereof include oil-soluble initiators such as oxyesters and peroxydicarbonates, and these can be used alone or in combination of two or more.
- the aqueous medium used in the present invention refers to water and other water-soluble polymerization aids (buffering agents, etc.), and is a medium in which an organic layer such as a vinyl chloride monomer is dispersed. The surfactant not contained in the aqueous medium is the same as described above.
- the heat insulating layer serves to protect the support from heat during heat transfer using a thermal head or the like. Further, since it has high cushioning properties, a thermal transfer image-receiving sheet with high printing sensitivity can be obtained even when paper is used as the substrate.
- the heat insulating layer include a layer containing air having low thermal conductivity in the polymer particles, a layer containing hollow polymer particles, and the like.
- the heat insulating layer can contain a hollow polymer latex or a water-soluble polymer. Hollow polymer latex is commercially available, and examples thereof include Nipol (registered trademark) MH5055 manufactured by Nippon Zeon Co., Ltd. and F-30 manufactured by Matsumoto Yushi Seiyaku Co., Ltd.
- the water-soluble polymer is preferably the water-soluble polymer described in the receptor layer.
- the underlayer is formed in order to adjust the glossiness and chargeability of the thermal transfer image receiving sheet.
- the base layer include a white background adjustment layer, a charge adjustment layer, an adhesive layer, and a primer layer.
- Examples of the support include a water-resistant support and a conductive support, and a water-resistant support is preferable. By using a water-resistant support, it is possible to prevent moisture from being absorbed into the support, and to prevent a change in performance of the receiving layer over time.
- Examples of the water resistant support include coated paper and laminated paper. Coated paper is paper in which various resins, rubber latex, or polymer materials are coated on one side or both sides of a sheet such as base paper, and the coating amount varies depending on the application.
- the thermal transfer sheet (ink sheet) used in combination with the above-described thermal transfer image receiving sheet of the present invention at the time of thermal transfer image formation is provided with a dye layer containing a diffusion transfer dye on a support, Ink sheets can be used.
- Any conventionally known applying means can be used as the means for applying thermal energy at the time of thermal transfer. For example, by controlling the recording time with a recording apparatus such as a thermal printer, a heat of about 5 to 100 mJ / mm 2 can be used. By applying energy, the intended purpose can be sufficiently achieved.
- the thermal transfer image-receiving sheet of the present invention can be used in various applications such as a sheet or roll-shaped thermal transfer image-receiving sheet, cards, and transmission-type manuscript preparation sheets that can be thermally transferred and recorded by appropriately selecting a support. It can also be applied.
- the thermal transfer image-receiving sheet of the present invention can be used in printers, copiers and the like that use a thermal transfer recording system.
- Example 1 In a 2.5 L autoclave, 600 g of deionized water, 438.8 g of vinyl chloride monomer (97.5% by weight with respect to all charged monomers), and 2.25 g of potassium persulfate were charged. The reaction mixture was stirred with a stirring blade so as to maintain a rotation speed of 120 rpm, and the temperature of the reaction mixture was raised to 60 ° C. to initiate polymerization. 11.2 g of glycidyl methacrylate (2.5% by weight based on the total amount of charged monomers) was continuously added at a rate of 2.8 g / hr from the start of polymerization to 4 hours later.
- the polymerization was stopped when the saturated vapor pressure decreased by 0.6 MPa to obtain a vinyl chloride resin latex.
- the solid content concentration and average particle size of the vinyl chloride resin latex, the amount of scale generation, and latex foaming were evaluated by the following measurement methods. The evaluation results are shown in Table 1.
- Example 2 Each of the vinyl chloride monomer and glycidyl methacrylate of Example 1 was 448.6 g of vinyl chloride monomer (99.7 wt% with respect to the total charged monomer) and 1.4 g of glycidyl methacrylate (total charged monomer).
- a vinyl chloride resin latex was obtained and evaluated in the same manner as in Example 1 except that 0.3% by weight) was continuously added at 0.7 g / hr from the start of polymerization to 2 hours after polymerization. . The evaluation results are shown in Table 1.
- Example 3 Before the start of polymerization, 2.2 g of glycidyl methacrylate of Example 1 (0.5% by weight based on the total charged monomers) was charged into a 2.5 L autoclave, and the remaining 9.0 g of glycidyl methacrylate (total charged monomers) A vinyl chloride resin latex was obtained and evaluated in the same manner as in Example 1 except that 2.0% by weight was continuously added at 3.0 g / hr from the start of polymerization to 3 hours after polymerization. The evaluation results are shown in Table 1.
- Example 4 Except that glycidyl methacrylate of Example 1 was changed to allyl glycidyl ether, a vinyl chloride resin latex was obtained in the same manner as in Example 1 and evaluated. The evaluation results are shown in Table 1.
- Example 5 The glycidyl methacrylate of Example 1 was 5.6 g of glycidyl methacrylate (1.25 wt% with respect to all charged monomers) and 5.6 g of allyl glycidyl ether (1.25 wt% with respect to all charged monomers).
- a vinyl chloride resin was prepared in the same manner as in Example 1 except that a monomer consisting of 5.6 g of glycidyl methacrylate and 5.6 g of allyl glycidyl ether was continuously added at a rate of 2.8 g / hr from the start of polymerization to 4 hr. Latex was obtained and evaluated. The evaluation results are shown in Table 1.
- Example 6 The vinyl chloride monomer of Example 1 was 393.8 g of vinyl chloride monomer (87.5 wt% based on the total charged monomers) and 45 g of vinyl acetate (10 wt% based on the total charged monomers). Except for the above, a vinyl chloride resin latex was obtained in the same manner as in Example 1 and evaluated. The evaluation results are shown in Table 2.
- Example 7 After 180 g of vinyl chloride monomer (40 wt% with respect to all charged monomers) and 45 g of vinyl acetate (10 wt% with respect to all charged monomers) were charged in a 2.5 L autoclave and polymerization was started, When the polymerization pressure dropped 0.1 MPa from the saturated vapor pressure of the vinyl chloride monomer at 60 ° C., the remaining vinyl chloride monomer 213.8 g (47.5 wt% with respect to the total charged monomers) In the same manner as in Example 6, except that the polymerization was stopped when the polymerization pressure was reduced to 0.6 MPa from the saturated vapor pressure of the vinyl chloride monomer at 60 ° C. A vinyl resin latex was obtained and evaluated. The evaluation results are shown in Table 2. Compared with Example 6, the time from the start of polymerization to the termination of polymerization was shortened by 60 minutes.
- Example 8 A vinyl chloride resin latex was obtained and evaluated in the same manner as in Example 1 except that 0.9 g of octyl 3-mercaptopropionate as a chain transfer agent was charged in a 2.5 L autoclave. The evaluation results are shown in Table 2.
- Example 9 The amount of potassium persulfate in Example 1 was changed to 0.7 g, and 25 g of a 0.4 wt% L-ascorbic acid aqueous solution as a reducing agent was continuously added to the 2.5 L autoclave 240 minutes after the start of polymerization to the end of the polymerization.
- a vinyl chloride resin latex was obtained by the same method as in Example 1 and evaluated. The evaluation results are shown in Table 2.
- Example 10 A vinyl chloride resin latex was obtained and evaluated in the same manner as in Example 9 except that 0.9 g of octyl 3-mercaptopropionate as a chain transfer agent was charged into a 2.5 L autoclave. The evaluation results are shown in Table 2.
- Comparative Example 1 Polymerization was carried out in the same manner as in Example 1 except that the vinyl chloride monomer of Example 1 was changed to 450 g of vinyl chloride monomer and glycidyl methacrylate was not charged. As a result, the reaction mixture aggregated during the polymerization, and no latex was obtained.
- Comparative Example 2 According to the same method as in Comparative Example 1, except that 180 g of a 5 wt% sodium dodecylbenzenesulfonate aqueous solution (2 wt% based on all charged monomers) was added to the 2.5 L autoclave and polymerization was started. Polymerization was performed to obtain a vinyl chloride resin latex, and evaluation was performed. The evaluation results are shown in Table 3. Many foaming of latex was observed.
- Comparative Example 3 The vinyl chloride monomer of Example 1 was changed to 120 g of vinyl chloride monomer, glycidyl methacrylate was not charged, and the amount of potassium persulfate charged was 0.60 g. System resin latex was obtained and evaluated. The evaluation results are shown in Table 3. There was little foaming of latex, but scale was generated.
- Comparative Example 4 The vinyl chloride monomer of Example 1 was changed to 240 g of vinyl chloride monomer, glycidyl methacrylate was not charged, and the amount of potassium persulfate charged was 1.20 g. System resin latex was obtained and evaluated. The evaluation results are shown in Table 3. There was little foaming of latex, but scale was generated.
- Comparative Example 5 Polymerization was carried out in the same manner as in Example 1 except that 11.2 g of glycidyl methacrylate of Example 1 (2.5% by weight with respect to all charged monomers) was charged into a 2.5 L autoclave and polymerization was started. Was done. As a result, the reaction mixture aggregated during the polymerization, and no latex was obtained.
- Example 6 The vinyl chloride monomer of Example 1 was 449.7 g of vinyl chloride monomer (99.95 wt% with respect to the total charged monomer), and glycidyl methacrylate was 0.3 g (total charged monomer).
- the polymerization was carried out in the same manner as in Example 1, except that the addition was continuously performed at 0.3 g / hr from the start of the polymerization to 1 hr later. As a result, the reaction mixture aggregated during the polymerization, and no latex was obtained.
- Comparative Example 7 Polymerization was carried out in the same manner as in Example 1 except that vinyl acetate was used as the glycidyl methacrylate in Example 1. As a result, the reaction mixture aggregated during the polymerization, and no latex was obtained.
- Comparative Example 8 Polymerization was carried out in the same manner as in Example 1, except that 2-hydroxyethyl methacrylate was used as the glycidyl methacrylate in Example 1. As a result, the reaction mixture aggregated during the polymerization, and no latex was obtained.
- Comparative Example 9 Polymerization was carried out in the same manner as in Example 1 except that 2-hydroxypropyl methacrylate was used as the glycidyl methacrylate in Example 1. As a result, the reaction mixture aggregated during the polymerization, and no latex was obtained.
- Example 11 The thermal transfer image-receiving sheet 1 was prepared by the following method, and the results evaluated by the following evaluation methods are shown in Table 4.
- the heat-sensitive transfer image-receiving sheet 1 had good water resistance, no storage yellowing, and good image durability and light resistance.
- the support constituting the heat-sensitive transfer image-receiving sheet was prepared as follows. That is, 50% by weight of LBKP (hardwood bleached kraft pulp) made of acacia and 50% by weight of LBKP made of aspen were each beaten to 300 ml of Canadian freeness by a disc refiner to prepare a pulp slurry. Next, to the pulp slurry obtained above, 1.3% by weight of cation-modified starch (CAT0304L, manufactured by Nippon NSC Co., Ltd.), 0.15% by weight of anionic polyacrylamide (DA41404, manufactured by Seiko PMC) per pulp.
- LBKP hardwood bleached kraft pulp
- Alkyl ketene dimer (Size Vine K, manufactured by Arakawa Chemical Co., Ltd.) 0.29% by weight, epoxidized behenamide 0.29% by weight.
- Polyamide polyamine epichlorohydrin (Arafix 100, manufactured by Arakawa Chemical Co., Ltd.) (0.32% by weight) was added, followed by 0.12% by weight of an antifoaming agent.
- the dryer canvas has a tensile force of 1.6 kg / cm.
- a multi-layer coating composition composed of an underlayer, a heat insulating layer, and a receiving layer was applied simultaneously in the order from the lower layer.
- the composition and coating amount of the coating solution used for the thermal transfer image-receiving sheet 1 are shown below.
- Receptive layer coating solution 50% by weight of vinyl chloride resin latex (latex 1) produced in Example 1, 10% by weight of 10% gelatin aqueous solution, 7% by weight of microcrystalline wax (EMUSTAR 42X, manufactured by Nippon Wax Co., Ltd.), 35% by weight of water % was adjusted to pH 8 with a NaOH aqueous solution to form a receiving layer coating solution, and the receiving layer was applied so that the receiving layer was 18 ml / m 2 (content of epoxy group-containing vinyl in the receiving layer: 100 parts by weight of vinyl chloride resin) 2.5 parts by weight).
- the white paper density after the test was measured with a Macbeth reflection densitometer (trade name: RD-914) using a yellow filter, and yellowing was evaluated as follows.
- the measured value was recorded in the L * a * b color system based on JIS Z 8729, and the color difference ( ⁇ E *) before and after treatment was calculated by the method based on JIS Z 8730 to evaluate the light resistance.
- Example 12 The thermal transfer image-receiving sheet 2 was prepared by the following method and evaluated by the above evaluation method. The results are shown in Table 4. As in Example 11, the water resistance was good, there was no storage yellowing, and the durability and light resistance of the image were good.
- the thermal transfer image-receiving sheet 1 was prepared in the same manner as the thermal transfer image-receiving sheet 1 except that the latex 1 used in the receiving layer was changed to the vinyl chloride resin latex (latex 2) produced in Example 6. (Epoxy group-containing vinyl content in receiving layer: 2.5 parts by weight with respect to 100 parts by weight of vinyl chloride resin).
- the thermal transfer image-receiving sheet 3 was prepared by the following method and evaluated by the above evaluation method. The results are shown in Table 4.
- thermal transfer image-receiving sheet 1 was prepared in the same manner as the thermal transfer image-receiving sheet 1 except that the latex 1 used in the receiving layer was changed to latex 3 (epoxy group-containing vinyl content in the receiving layer: chloride). 2.5 parts by weight with respect to 100 parts by weight of vinyl resin).
- the thermal transfer image-receiving sheet 4 was prepared by the following method and evaluated by the above evaluation method. The results are shown in Table 4.
- the thermal transfer image-receiving sheet 1 was prepared in the same manner as the thermal transfer image-receiving sheet 1 except that the latex 1 used for the receiving layer was changed to latex 4 (epoxy group-containing vinyl content in the receiving layer: chloride). 2.5 parts by weight with respect to 100 parts by weight of vinyl resin).
- the vinyl chloride resin latex of the present invention does not contain a surfactant in the latex, the foaming of the latex is suppressed when the unreacted monomer is recovered from the latex, and the efficiency of the recovery process is achieved.
- the heat-sensitive transfer image-receiving sheet of the present invention has excellent water resistance, no storage yellowing, and excellent image durability and light resistance. Therefore, the industrial value of the present invention is remarkable.
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Abstract
Description
そこで、界面活性剤を樹脂中に極力残存させない、塩化ビニル系樹脂について、幾つかの提案がなされている(特許文献1及び非特許文献1)。
しかし、特許文献1で提案されている反応性乳化剤は樹脂と全て化学結合する訳ではなく、一部の反応性乳化剤は樹脂から依然として、遊離して存在するという問題があった。また、非特許文献1では、界面活性剤を全く使用しないものの、塩化ビニル単量体添加量を増加させて重合を行なうと、重合途中でラテックスが凝集するため、ラテックス中固形分濃度を20%以下とする、ソープフリー重合が提案されているにすぎない。実際に製造するには、固形分濃度が低いため生産性が悪く、またスケール発生量が多いために問題であった。ソープフリー重合によって、高固形分濃度の塩化ビニル系樹脂ラテックスを得るためには、塩化ビニルに共重合可能な、親水基を有するビニル単量体を塩化ビニルに共重合する方法が考えられる。塩化ビニル単量体との共重合性が高く、親水基を有するビニル単量体としては、酢酸ビニルが挙げられる程度である。現在製造されている塩化ビニル共重合体の大部分は塩化ビニル及び酢酸ビニルの共重合体である。しかし、塩化ビニル及び酢酸ビニルからなる混合単量体を界面活性剤の非存在下に重合を行なうと、重合中にラテックスが凝集する問題があったため、界面活性剤を含有しない高固形分濃度の塩化ビニル系樹脂ラテックスは開発されていなかった。
しかし、特許文献2では界面活性剤であるラウリル硫酸ナトリウムを含有する塩化ビニル系樹脂について記載があり、特許文献3では界面活性剤であるポリアルキレングリコールを含有する塩化ビニル系重合体について実施例中に記載がある。したがって、特許文献2及び特許文献3ともに、塩化ビニル系樹脂中に、界面活性剤を含有していることになるので、これらの界面活性剤の成分を含有しない固形分濃度が25重量%以上である塩化ビニル系樹脂ラテックス及びその製造方法はこれまで開発されていなかった。
一般的に感熱転写受像用シートは少なくとも支持体上に染料受像層(受容層)及び断熱層が形成されている。受容層形成用樹脂としては、染料染着性及び離型性に優れ、熱転写時に熱転写シート及び感熱転写受像用シートの間において融着等の異常転写が起こらない点で、塩化ビニル系樹脂が使用されている。
画像耐久性を向上させるために、受容層形成樹脂を水溶性及び水分散性樹脂とする提案がなされており、例えばポリエステル樹脂の水分散体が開示されている(特許文献4)。
しかしながら、この場合には、画像の油性成分に対する耐久性は向上するが、耐光性の向上は不十分であった。
しかしながら、このような高分子紫外線吸収剤を耐光性を十分向上させるために多量に添加すると、耐水性が低下するという問題があった。
(1) 塩化ビニル及びエポキシ基含有ビニルを含む共重合体で、かつ、当該共重合体中のエポキシ基含有ビニルが0.1重量%以上3重量%未満である共重合体を含有する塩化ビニル系樹脂ラテックスであって、界面活性剤を含有せず、塩化ビニル系樹脂ラテックス中の固形分濃度が25重量%以上であることを特徴とする塩化ビニル系樹脂ラテックス。
(2) 塩化ビニル、エポキシ基含有ビニル及びカルボン酸ビニルエステルを含む共重合体で、かつ、当該共重合体中のエポキシ基含有ビニルが0.1重量%以上3重量%未満である共重合体を含有する塩化ビニル系樹脂ラテックスであって、界面活性剤を含有せず、塩化ビニル系樹脂ラテックス中の固形分濃度が25重量%以上であることを特徴とする塩化ビニル系樹脂ラテックス。
(3) 好ましくは、カルボン酸ビニルエステルが、酢酸ビニルであることを特徴とする(2)に記載の塩化ビニル系樹脂ラテックス。
(4) 好ましくは、エポキシ基含有ビニルが、グリシジルメタクリレート又はアリルグリシジルエーテルであることを特徴とする(1)~(3)のいずれかの項に記載の塩化ビニル系樹脂ラテックス。
(6) エポキシ基含有ビニル単量体が塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体の合計に対して0.1重量%以上3重量%未満となる量で、塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体を重合開始剤の存在下、界面活性剤を含有しない水性媒体中で重合させる塩化ビニル系樹脂ラテックスの製造方法であって、塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体/水の重量比が1/3以上であり、エポキシ基含有ビニル単量体の一部又は全量を、重合中に水性媒体中に分割添加又は連続添加することを特徴とする(2)~(4)のいずれかの項に記載の塩化ビニル系樹脂ラテックスの製造方法。
(7) 好ましくは、重合中に、塩化ビニル単量体の一部を水性媒体中に分割添加又は連続添加することを特徴とする(5)又は(6)に記載の塩化ビニル系樹脂ラテックスの製造方法。
(8) 好ましくは、連鎖移動剤、還元剤又はその両者の存在下で重合させることを特徴とする(5)~(7)のいずれかの項に記載の塩化ビニル系樹脂ラテックスの製造方法。
(10) (1)~(4)のいずれかの項に記載の塩化ビニル系樹脂ラテックスから得られることを特徴とする塩化ビニル系樹脂粉体。
(11) (10)に記載の塩化ビニル系樹脂粉体及び有機溶媒を含有することを特徴とする塩化ビニル系樹脂組成物。
(13) 好ましくは、塩化ビニル単量体及びエポキシ基含有ビニル単量体の他にカルボン酸ビニルエステル単量体を含有することを特徴とする(12)に記載の感熱転写受像用シート。
(14) 好ましくは、カルボン酸ビニルエステル単量体が、酢酸ビニルであることを特徴とする(13)に記載の感熱転写受像用シート。
(15) 好ましくは、エポキシ基含有ビニルが、グリシジルメタクリレート又はアリルグリシジルエーテルであることを特徴とする(12)~(14)のいずれかの項に記載の感熱転写受像用シート。
本発明の塩化ビニル系樹脂ラテックスは、塩化ビニル及びエポキシ基含有ビニルを含む共重合体で、かつ、当該共重合体中のエポキシ基含有ビニルが0.1重量%以上3重量%未満となる量で、共重合体を含有する。塩化ビニル及びエポキシ基含有ビニルの共重合体を含むことにより、ラテックスを塗布乾燥して得られるフィルムは熱安定性に優れる。ここで、エポキシ基含有ビニルとは、例えば、メタクリル酸グリシジル(グリシジルメタクリレート)、アクリル酸グリシジル(グリシジルアクリレート)、β-メチルグリシジルメタクリレート、β-メチルグリシジルアクリレートなどの(メタ)アクリル酸のグリシジルエステル;マレイン酸、フマル酸、イタコン酸などのビニル重合性不飽和カルボン酸のジグリシジルエステル等があげられる。
本発明の塩化ビニル系樹脂ラテックスは、共重合体中のエポキシ基含有ビニルが0.1重量%以上3重量%未満となる量で、共重合体を含有するものである。エポキシ基含有ビニルが0.1重量%未満の場合は、ラテックス中固形分濃度が25重量%以上の界面活性剤を含有しないラテックスとはならないものである。
本発明の塩化ビニル系樹脂ラテックスは、塩化ビニル単量体及びエポキシ基含有ビニル単量体、又は塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体を重合することにより製造することができるが、その重合は、エポキシ基含有ビニル単量体が全単量体に対して0.1重量%以上3重量%未満となる量で、全単量体を重合開始剤の存在下、界面活性剤を含有しない水性媒体中で重合させ、全単量体/水の重量比が1/3以上であり、エポキシ基含有ビニル単量体の一部又は全量を、重合中に水性媒体中に分割添加又は連続添加することが必要である。エポキシ基含有ビニル単量体を全単量体に対して0.1重量%未満含有する全単量体とする場合には、重合安定性を確保するために界面活性剤の添加が必要となり、加熱及び減圧条件下でラテックス中に残存する未反応単量体の回収を行なう際、ラテックスの泡立ちが多くなる。また、全単量体/水の重量比が1/3未満の場合は、得られるラテックス中の固形分濃度が25重量%以下となるため、ラテックスを噴霧乾燥し、塩化ビニル系樹脂を得る際に、多量の水分を除去しなければならず、生産性が悪化する。
また、重合中に、重合時間が短縮するため、塩化ビニル単量体の一部を水性媒体中に分割添加又は連続添加することが好ましい。
重合は、連鎖移動剤、還元剤又はその両者の存在下で行う必要はないが、連鎖移動剤、還元剤又はその両者の存在下で重合を行うことによって、前記の様に、重合が安定化し、スケール発生量が減少する。また、還元剤の添加はレドックス系による開始剤分解に寄与するため、重合終了後ラテックスに残存する未分解開始剤残存量を低減することができる。
連鎖移動剤としては、塩化ビニル系重合体の重合度を調整できるものであればよく、例えば、トリクロルエチレン、四塩化炭素などのハロゲン系炭化水素;2-メルカプトエタノール、3-メルカプトプロピオン酸オクチル、ドデシルメルカプタンなどのメルカプタン類;アセトン、n-ブチルアルデヒド等のアルデヒド類等が挙げられる。
還元剤としては、例えば、亜硫酸ナトリウム、亜硫酸アンモニウム、亜硫酸水素ナトリウム、亜硫酸水素アンモニウム、チオ硫酸アンモニウム、メタ重亜硫酸カリウム、亜二チオン酸ナトリウム、ナトリウムホルムアルデヒドスルフォキシレート、L-アスコルビン酸、デキストローズ、硫酸第一鉄、硫酸銅等が挙げられる。
カルボン酸ビニルエステル単量体としては、例えば、酢酸ビニル、プロピオン酸ビニル、ミリスチン酸ビニル、安息香酸ビニル等を挙げることができ、これらは単独で又は2種類以上を任意に組み合わせて用いられることができる。
また、必要に応じてその他塩化ビニルに共重合可能な単量体を単量体中に含有することもできる。その他塩化ビニルに共重合可能な単量体としては、例えば、アクリル酸、メタクリル酸、マレイン酸、フマル酸などの不飽和カルボン酸又はその無水物類;アクリル酸のメチル,エチル,ブチル等のエステル類;、メタクリル酸のメチル,エチル,ブチル等のエステル類;マレイン酸エステル、フマル酸エステル、桂皮酸エステルなどの不飽和カルボン酸エステル類;ビニルメチルエーテル、ビニルアミルエーテル、ビニルフェニルエーテルなどのビニルエーテル類;エチレン、プロピレン、ブテン、ペンテンなどのモノオレフィン類;塩化ビニリデン;スチレン及びその誘導体;アクリロニトリル;メタクリロニトリル等の単量体を挙げることができ、これらは単独で又は2種以上を任意に組み合わせて用いられることができる。
本発明で使用される水性媒体とは、水及びその他水溶性の重合助剤(緩衝剤等)のことで、塩化ビニル単量体などの有機層を分散させる媒体のことである。
本発明の塩化ビニル系樹脂ラテックス及び種々の添加剤とを含有することで塩化ビニル系樹脂ラテックス組成物とすることもできる。添加剤としては、例えば、水、顔料、染料、界面活性剤、粘着付与樹脂、金属酸化物、増粘剤、充填剤、造膜助剤、紫外線吸収剤、酸化防止剤、可塑剤、加硫剤、加硫促進剤、消泡剤、アルコキシシラン類化合物等があげられる。
上記の塩化ビニル系樹脂ラテックス、塩化ビニル系樹脂ラテックス組成物、塩化ビニル系樹脂、塩化ビニル系樹脂組成物の用途としては、例えば、コーティング、接着剤、シーラント、インキ、塗料、ヒートシール、磁気テープ、熱転写記録用紙等が挙げられる。
本発明の感熱転写受像用シートは、感熱転写受像用シートの光沢性や帯電性などを調整するため、受容層及び支持体の間には下地層が形成されていることが好ましく、支持体上に下地層、断熱層、及び受容層をこの順に形成することが好ましい。
受容層は、インクシートから移行してくる染料を受容し、形成された画像を維持する役割を果たす。受容層は、少なくとも染料を受容し得る塩化ビニル系樹脂を含有する。
受容層は、塩化ビニル系樹脂100重量部に対してエポキシ基含有ビニル0.1~3重量部を含有するものである。エポキシ基含有ビニルの単量体が0.1重量部未満の場合は、界面活性剤を含有しない受容層とならない。また、3重量部を越える場合は感熱転写受像用シートの表面平滑性が悪化する。
エポキシ基含有ビニルとしては、例えば、メタクリル酸グリシジル(グリシジルメタクリレート)、アクリル酸グリシジル(グリシジルアクリレート)、β-メチルグリシジルメタクリレート、β-メチルグリシジルアクリレートなどの(メタ)アクリル酸のグリシジルエステル;マレイン酸、フマル酸、イタコン酸などのビニル重合性不飽和カルボン酸のジグリシジルエステル等を挙げることができ、これらは単独で又は2種類以上の任意の組み合わせで含有してもよい。
受容層に含有しない界面活性剤としては、アニオン系界面活性剤、ノニオン系界面活性剤、カチオン系界面活性剤、両性系界面活性剤であり、例えば、ラウリル硫酸エステルナトリウム、ミリスチル硫酸エステルの如きアルキル硫酸エステル塩類、ドデシルベンゼンスルホン酸ナトリウム、ドデシルベンゼンスルホン酸カリウムの如きアルキルベンゼンスルホン酸塩類、ジオクチルスルホコハク酸ナトリウム、ジヘキシルスルホコハク酸ナトリウムの如きスルホコハク酸塩類、ラウリン酸アンモニウム、ステアリン酸カリウムの如き脂肪酸塩類、ポリオキシエチレンアルキル硫酸エステル塩類、ポリオキシエチレンアルキルアリール硫酸エステル塩類などのアニオン系界面活性剤、ソルビタンモノオレート、ポリオキシエチレンソルビタンモノステアレートの如きソルビタンエステル類、ポリオキシエチレンアルキルフェニルエーテル類、ポリオキシエチレンアルキルエステル類、ポリアルキレングリコール類、ポリビニルアルコール、部分ケン化ポリビニルアルコール、部分ケン化ポリメタクリル酸メチル、ポリアクリル酸およびその塩などのノニオン系界面活性剤、ステアリルアミンアセテート、ラウリルトリメチルアンモニウムクロライドなどのカチオン系界面活性剤、ラウリルジメチルアミンオキサイド、ラウリルカルボキシメチルヒドロキシエチルイミダゾリウムベタインなどの両性界面活性剤が挙げられる。
ポリマーラテックスは、膜の弾性率を調整するため、受容層に含有することができる。ポリマーラテックスとしては、例えば、アクリル系ポリマー、ポリエステル類、ゴム類(例えばSBR樹脂)、ポリウレタン類、ポリ酢酸ビニル共重合体、ポリオレフィン等が挙げられる。
水溶性ポリマーは、受容層に染着した染料が拡散することを防止し、転写画像の経時変化が小さい記録画像を形成できるため、受容層に含有することができる。ここで、水溶性ポリマーは、例えば、ポリビニルアルコール類、ゼラチン等があげられ、これらのうちゼラチンが好ましい。
離型剤は、画像形成時に感熱転写受容シート及び熱転写シートの熱融着を防ぐために、受容層に含有することができる。離型剤は、各種ワックス分散物を用いることができる。ワックス分散物としては、公知の分散物を使用することができる。好ましい化合物の例としては、モンタンワックス及びその誘導体、マイクロクリスタリンワックスをあげることができる。
塩化ビニル系樹脂ラテックスは、受容層の形成に使用されるものであり、塩化ビニル系樹脂、及び塩化ビニル系樹脂100重量部に対してエポキシ基含有ビニル0.1~3重量部を含有し、かつ、界面活性剤を含有しないものである。エポキシ基含有ビニルが0.1重量部未満の場合は、ソープフリー乳化重合により得られず、3重量部を超える場合は、得られる感熱転写受像用シートの表面平滑性が悪化する。
塩化ビニル系樹脂ラテックスは、塩化ビニル単量体及びエポキシ基含有ビニル単量体の合計に対してエポキシ基含有ビニル単量体が0.1重量%以上となる量で、塩化ビニル単量体及びエポキシ基含有ビニル単量体を、界面活性剤を含有しない水性媒体中で、乳化重合させることによって製造することができる。塩化ビニル系樹脂ラテックスとして2種類以上の塩化ビニル系樹脂ラテックスをブレンドして用いることも可能である。
エポキシ基含有ビニル単量体が塩化ビニル単量体及びエポキシ基含有ビニル単量体の合計に対して0.1重量%未満である場合、乳化重合が不安定化し、塩化ビニル系樹脂ラテックスが得られない。塩化ビニル単量体及びエポキシ基含有ビニル単量体/分散媒の重量比を小さくすることで、エポキシ基含有ビニル単量体を含有しない場合であっても、安定に重合を進行させ、ラテックスを得ることはできる。しかし、固形分濃度が低いため、受容層塗工液としては不適である。
カルボン酸ビニルエステル単量体としては、例えば、酢酸ビニル、プロピオン酸ビニル、ミリスチン酸ビニル、安息香酸ビニル等を挙げることができ、これらは単独で又は2種類以上を任意に組み合わせて用いることができる。
また、必要に応じて塩化ビニルに共重合可能な単量体を含有することもできる。塩化ビニルに共重合可能な単量体としては、例えば、アクリル酸、メタクリル酸、マレイン酸、フマル酸などの不飽和カルボン酸又はその無水物類;アクリル酸のメチル,エチル,ブチルなどのエステル類;、メタクリル酸のメチル,エチル,ブチルなどのエステル類;マレイン酸エステル、フマル酸エステル、桂皮酸エステルなどの不飽和カルボン酸エステル類;ビニルメチルエーテル、ビニルアミルエーテル、ビニルフェニルエーテルなどのビニルエーテル類;エチレン、プロピレン、ブテン、ペンテンなどのモノオレフィン類;塩化ビニリデン;スチレン及びその誘導体;アクリロニトリル;メタクリロニトリル等の単量体を挙げることができ、これらは単独で又は2種以上を任意に組み合わせて用いることができる。
本発明で使用される水性媒体とは、水及びその他水溶性の重合助剤(緩衝剤等)のことで、塩化ビニル単量体などの有機層を分散させる媒体のことである。
水性媒体が含有しない界面活性剤は、先に記載のものと同じである。
断熱層は、サーマルヘッド等を用いた加熱転写時における熱から支持体を保護する役割を果たす。また、高いクッション性を有するので、基材として紙を用いた場合であっても、印字感度の高い感熱転写受像用シートを得ることができる。断熱層としては、例えば、ポリマー粒子中に熱伝導率の低い空気を含む層、中空ポリマー粒子を含む層等があげられる。
断熱層は、中空ポリマーラテックスや水溶性ポリマーを含有することができる。中空ポリマーラテックスは市販されており、例えば、日本ゼオン社製ニポール(登録商標)MH5055や、松本油脂製薬社製F‐30等が挙げられる。また、水溶性ポリマーは受容層で記載した水溶性ポリマーが好ましい。
下地層は、感熱転写受像用シートの光沢性や帯電性などを調整するために形成されるものである。下地層としては、例えば、白地調整層、帯電調整層、接着層、プライマー層等があげられる。
(支持体)
支持体は、例えば、耐水性支持体、導電性支持体等があげられるが、耐水性支持体が好ましい。耐水性支持体を用いることで支持体中に水分が吸収されるのを防止して、受容層の経時による性能変化を防止することができる。耐水性支持体としては、例えば、コート紙やラミネート紙等があげられる。コート紙は、原紙等のシートに、各種の樹脂、ゴムラテックス又は高分子材料を片面又は両面に塗工した紙であり、用途に応じて塗工量が異なる。
熱転写画像形成の際に、上述した本発明の感熱転写受像用シートと併せて使用される熱転写シート(インクシート)は支持体上に拡散転写染料を含む色素層を設けたものであり、任意のインクシートを使用することができる。熱転写時の熱エネルギーの付与手段は、従来公知の付与手段のいずれも使用することができ、例えば、サーマルプリンター等の記録装置によって記録時間をコントロールすることにより、5~100mJ/mm2程度の熱エネルギーを付与することによって所期の目的を十分に達成することができる。また、本発明の感熱転写受像用シートは、支持体を適宜選択することにより、熱転写記録可能な枚葉又はロール状の感熱転写受像用シート、カード類、透過型原稿作成シート等の各種用途に適用することもできる。
本発明の感熱転写受像用シートは、感熱転写記録方式を利用したプリンター、複写機などに利用することができる。
2.5Lオートクレーブ中に脱イオン水600g、塩化ビニル単量体438.8g(全仕込み単量体に対して97.5重量%)、過硫酸カリウム2.25gを仕込んだ。この反応混合物を攪拌翼で回転数120rpmを維持するように攪拌し、反応混合物の温度を60℃に上げて重合を開始した。グリシジルメタクリレート11.2g(全仕込み単量体に対して2.5重量%)を、重合開始~4hr後まで2.8g/hrで連続添加し、重合圧が60℃における塩化ビニル単量体の飽和蒸気圧から0.6MPa降下した時に重合を停止して、塩化ビニル系樹脂ラテックスを得た。以下の測定方法によって塩化ビニル系樹脂ラテックスの固形分濃度及び平均粒子径、スケール発生量、及びラテックス泡立ちを評価した。その評価結果を表1に示す。
得られた塩化ビニル系樹脂ラテックスを、直径12cmの回転円盤を有する噴霧乾燥機を用い、乾燥用空気入口温度158℃、乾燥空気出口温度55℃、回転数12000rpmで噴霧乾燥することにより塩化ビニル系樹脂粉体を得た。得られた塩化ビニル系樹脂粉体の平均粒子径を、以下の測定方法によって測定したところ、平均粒子径は20μmであった。
また、得られた塩化ビニル系樹脂粉体20gにメチルエチルケトン80g添加したところ溶解し、塩化ビニル系樹脂組成物を得た。
ラテックス5gをアルミ皿にとり、重量を測定後、40℃の乾燥機で24hr乾燥して水分を蒸発させた。その後、乾燥物の重量を測定し、重量比から固形分濃度を算出した。
<平均粒子径>
塩化ビニル系樹脂ラテックスまたは塩化ビニル系樹脂粉体をレーザー透過率が75~85%となるように水を添加し濃度調整を行なった測定用試料を、レーザー回折/散乱式粒径測定装置(堀場製作場(株)製、商品名LA-920)を用いて、メジアン径を測定し、平均粒子径とした。
<スケール発生量>
2.5Lオートクレーブ壁面及び攪拌翼への樹脂付着物及び、得られたラテックスを60メッシュの金網でろ過した後の樹脂捕集物を、40℃の乾燥機で72hr乾燥して水分を蒸発させた。その後、乾燥物の重量を測定し、この重量のオートクレーブに仕込んだ単量体重量に対する割合を、百分率で表し、スケール発生量とした。
<ラテックス泡立ち>
ラテックスを1Lの耐真空ガラス容器に投入し、ラテックスを60℃に昇温し、回転数120rpmで攪拌しながら、真空ポンプで耐真空ガラス容器を減圧した。減圧度が-60kPaとなった際の、ラテックス泡立ちを目視にて観察し、下記の内容で評価を行なった。
A:ラテックス泡立ちは少ない。 B:ラテックス泡立ちは多い。
実施例1の塩化ビニル単量体及びグリシジルメタクリレートをそれぞれ、塩化ビニル単量体448.6g(全仕込み単量体に対して99.7重量%)、グリシジルメタクリレート1.4g(全仕込み単量体に対して0.3重量%)を重合開始~2hr後まで0.7g/hrで連続添加とした以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表1に示す。
実施例1のグリシジルメタクリレート2.2g(全仕込み単量体に対して0.5重量%)を重合開始前に2.5Lオートクレーブ中に仕込み、残りのグリシジルメタクリレート9.0g(全仕込み単量体に対して2.0重量%)を重合開始~3hr後まで3.0g/hrで連続添加とした以外は実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表1に示す。
実施例1のグリシジルメタクリレートをアリルグリシジルエーテルとした以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表1に示す。
実施例1のグリシジルメタクリレートをグリシジルメタクリレート5.6g(全仕込み単量体に対して1.25重量%)、アリルグリシジルエーテル5.6g(全仕込み単量体に対して1.25重量%)とし、グリシジルメタクリレート5.6g、アリルグリシジルエーテル5.6gからなる単量体を、重合開始~4hr後まで2.8g/hrで連続添加した以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表1に示す。
実施例1の塩化ビニル単量体を塩化ビニル単量体393.8g(全仕込み単量体に対して87.5重量%)、酢酸ビニル45g(全仕込み単量体に対して10重量%)とした以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表2に示す。
塩化ビニル単量体180g(全仕込み単量体に対して40重量%)、酢酸ビニル45g(全仕込み単量体に対して10重量%)を2.5Lオートクレーブ中に仕込み重合を開始したのち、重合圧が60℃における塩化ビニル単量体の飽和蒸気圧から0.1MPa降下したときに、残りの塩化ビニル単量体213.8g(全仕込み単量体に対して47.5重量%)を2.5Lオートクレーブ中に仕込み重合を継続し、重合圧が60℃における塩化ビニル単量体の飽和蒸気圧から0.6MPa降下した時に重合を停止した以外は、実施例6と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表2に示す。重合開始から重合停止までの時間は実施例6と比較し、60分短縮した。
連鎖移動剤として3-メルカプトプロピオン酸オクチル0.9gを2.5Lオートクレーブ中に仕込んだ以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表2に示す。
実施例1の過硫酸カリウムを0.7gとし、重合開始から240分後~重合終了までに還元剤として0.4重量%L-アスコルビン酸水溶液25gを2.5Lオートクレーブ中に連続添加した以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表2に示す。
連鎖移動剤として3-メルカプトプロピオン酸オクチル0.9gを2.5Lオートクレーブ中に仕込んだ以外は、実施例9と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表2に示す。
実施例1の塩化ビニル単量体を塩化ビニル単量体450gとし、グリシジルメタクリレート仕込みを行なわなかった以外は、実施例1と同様の方法により重合を行なった。その結果、重合途中に反応混合物が凝集し、ラテックスが得られなかった。
2.5Lオートクレーブ中に5重量%のドデシルベンゼンスルホン酸ナトリウム水溶液180g(全仕込み単量体に対して2重量%)を添加して重合を開始したこと以外は、比較例1と同様の方法により重合を行い、塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表3に示す。ラテックスの泡立ちが多く観察された。
実施例1の塩化ビニル単量体を塩化ビニル単量体120gとし、グリシジルメタクリレート仕込みを行なわず、過硫酸カリウムの仕込み量を0.60gとした以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表3に示す。ラテックスの泡立ちは少なかったが、スケールが発生した。
実施例1の塩化ビニル単量体を塩化ビニル単量体240gとし、グリシジルメタクリレート仕込みを行なわず、過硫酸カリウムの仕込み量を1.20gとした以外は、実施例1と同様の方法により塩化ビニル系樹脂ラテックスを得て、評価を行なった。その評価結果を表3に示す。ラテックスの泡立ちは少なかったが、スケールが発生した。
実施例1のグリシジルメタクリレート11.2g(全仕込み単量体に対して2.5重量%)を2.5Lオートクレーブ中に仕込み、重合を開始とした以外は、実施例1と同様の方法により重合を行なった。その結果、重合途中に反応混合物が凝集し、ラテックスが得られなかった。
実施例1の塩化ビニル単量体を塩化ビニル単量体449.7g(全仕込み単量体に対して99.95重量%)とし、グリシジルメタクリレートをグリシジルメタクリレート0.3g(全仕込み単量体に対して0.05重量%)とし、重合開始~1hr後まで0.3g/hrで連続添加とした以外は実施例1と同様の方法により重合を行なった。その結果、重合途中に反応混合物が凝集し、ラテックスが得られなかった。
実施例1のグリシジルメタクリレートを酢酸ビニルとした以外は、実施例1と同様の方法により重合を行なった。その結果、重合途中に反応混合物が凝集し、ラテックスが得られなかった。
実施例1のグリシジルメタクリレートを2-ヒドロキシエチルメタクリレートとした以外は、実施例1と同様の方法により重合を行なった。その結果、重合途中に反応混合物が凝集し、ラテックスが得られなかった。
実施例1のグリシジルメタクリレートを2-ヒドロキシプロピルメタクリレートとした以外は、実施例1と同様の方法により重合を行なった。その結果、重合途中に反応混合物が凝集し、ラテックスが得られなかった。
以下の方法で、感熱転写受像用シート1を作製し、以下の評価方法により評価した結果を表4に示す。感熱転写受像用シート1は耐水性が良好で、保存黄変がなく、画像の耐久性、耐光性が良好であった。
感熱転写受像用シートを構成する支持体は、以下の通り作製した。
すなわち、アカシアからなるLBKP(広葉樹晒クラフトパルプ)50重量%及びアスペンからなるLBKP50重量%をそれぞれディスクリファイナーによりカナディアンフリーネス300mlに叩解し、パルプスラリーを調製した。
次いで、上記で得られたパルプスラリーに、対パルプ当り、カチオン変性でんぷん(CAT0304L、日本NSC(株)製)1.3重量%、アニオン性ポリアクリルアミド(DA41404、星光PMC製)0.15重量%、アルキルケテンダイマー(サイズバインK、荒川化学(株)製)0.29重量%、エポキシ化ベヘン酸アミド0.29重量%。ポリアミドポリアミンエピクロルヒドリン(アラフィックス100、荒川化学(株)製)0.32重量%を加えた後、消泡剤0.12重量%を加えた。
前記のようにして調整したパルプスラリーを長抄紙機で抄紙し、ウェップのフェルト面をドラムドライヤーシリンダーにドライヤーカンパスを介して押し当てて乾燥する工程において、ドライヤーカンパスの引張り力を1.6kg/cmに設定して乾燥を行った後、サイズプレスにて原紙の両面にポリビニルアルコール(KL-118、(株)クラレ製)を1g/m2塗布して乾燥し、カレンダー処理を行い、支持体を作製した。
上記のように作製した支持体上に下層から順に下地層、断熱層、及び受容層の構成の多層構成塗布物を同時重層塗布した。感熱転写受像用シート1に用いた塗工液の組成及び塗布量を以下に示す。
(下地層塗工液)
スチレンブタジエンラテックス(SR103、日本エイアンドエル(株)製)93重量%、PVA 8.7%水溶液 57重量%をNaOH水溶液でpH8に調整し、下地層塗工液とし、下地層が21ml/m2となるよう塗布した。
中空ポリマーラテックス(ニポール(登録商標)MH5055、日本ゼオン(株)製)38重量%、16%ゼラチン水溶液26重量%、水4重量%をNaOH水溶液でpH8に調整し、断熱層塗工液とし、断熱層が45ml/m2となるよう塗布した。
(受容層塗工液)
実施例1で製造した塩化ビニル系樹脂ラテックス(ラテックス1)を50重量%、10%ゼラチン水溶液10重量%、マイクロクリスタリンワックス(EMUSTAR 42X、日本製蝋(株)製)7重量%、水35重量%をNaOH水溶液でpH8に調整し、受容層塗工液とし、受容層が18ml/m2となるよう塗布した(受容層中のエポキシ基含有ビニル含有量:塩化ビニル系樹脂100重量部に対して2.5重量部)。
(白紙耐水性試験)
得られた受像用シートの受容層両側に、常温で水道水を1滴滴下し、10秒後にその箇所を指で10回擦った。擦った跡を目視にて評価した。
A:擦った跡は全くついておらず、実用には全く問題ない。
B:擦った跡が僅かについているが、実用可能である。
C:擦った跡がはっきり残り、実用には適さない。
(白紙保存黄変試験)
得られた受像用シートの白紙を40℃85%RH環境に3日置いた。試験後の白紙濃度をマクベス反射濃度計(商品名:RD-914)にて、イエローフィルターを用いて測定し、黄変を以下のように評価した。
A:白紙濃度が0.07未満であり、実用には全く問題ない。
B:白紙濃度が0.07以上0.12未満であり、実用可能である。
C:白紙濃度が0.12以上であり、実用には適さない。
熱転写プリンター(P-330、オリンパス(株)製)を用いて、厚さ6μmのポリエステルフィルムの上にイエロー、マゼンダ、シアン3色それぞれの昇華性染料をバインダーと共に含むインク層を設けたインクシートを順次感熱転写受像用シートに接触させ、サーマルヘッドで段階的にコントロールされた加熱を施す事により、黒の階調画像を作成した。
得られた黒の階調画像について、マクベス反射濃度計(商品名:RD-914)を用いて、印画濃度0.3に相当する部分を選び出した。この印画面に指を強く押し付け、40℃24時間環境に置いた。指紋の跡を目視にて評価した。
A:指紋の跡は全くついておらず、実用には全く問題ない。
B:指紋の跡が僅かについているが、実用可能である。
C:指紋の跡がはっきり残り、実用には適さない。
熱転写プリンター(P-330、オリンパス(株)製)を用いて、厚さ6μmのポリエステルフィルムの上にイエロー、マゼンダ、シアン3色それぞれの昇華性染料をバインダーと共に含むインク層を設けたインクシートを順次感熱転写受像用シートに接触させ、サーマルヘッドでコントロールされた加熱を施すことにより、黒ベタ画像を作成した。
得られた黒ベタ画像印画物を、Xeフェードメーターで10,000kj/m2の積算照度になるまで処理した。
画像の耐光性試験前及び試験後の色調をJIS Z 8721に準拠して、色差計(グレタグ社)を用いて測定した。測定値はJIS Z 8729に基づき、L*a*b表色系で記録し、JIS Z 8730に基づく方法で処理前後の色差(ΔE*)を算出し、耐光性を評価した。
A:ΔE*が8未満であり、実用には全く問題ない。
B:ΔE*が8以上13未満であり、実用には全く問題ない。
C:ΔE*が13以上であり、実用には適さない。
以下の方法で、感熱転写受像用シート2を作製し、上記評価方法により評価した。その結果を表4に示す。実施例11と同様、耐水性が良好で、保存黄変がなく、画像の耐久性、耐光性が良好であった。
<感熱転写受像用シート2の作製>
感熱転写受像用シート1において、受容層に用いたラテックス1を実施例6で製造した塩化ビニル系樹脂ラテックス(ラテックス2)に変更した以外は、感熱転写受像用シート1と同様の方法で作製した(受容層中のエポキシ基含有ビニル含有量:塩化ビニル系樹脂100重量部に対して2.5重量部)。
以下の方法で、感熱転写受像用シート3を作製し、上記評価方法により評価した。その結果を表4に示す。
<塩化ビニル系樹脂ラテックスの合成>
5重量%のラウリン酸アンモニウム(アニオン系界面活性剤)水溶液180g(全仕込み単量体に対して2重量%)を重合開始の90分後から360分後まで、40g/hrで連続仕込みとし、実施例1の脱イオン水を420gとした以外は、実施例1と同様の方法で塩化ビニル系樹脂ラテックス(ラテックス3)を得た。ラテックス3中の塩化ビニル系樹脂の平均粒子径は0.4μm(400nm)であった。
<感熱転写受像用シート3の作製>
感熱転写受像用シート1において、受容層に用いたラテックス1をラテックス3に変更した以外は、感熱転写受像用シート1と同様の方法で作製した(受容層中のエポキシ基含有ビニル含有量:塩化ビニル系樹脂100重量部に対して2.5重量部)。
以下の方法で、感熱転写受像用シート4を作製し、上記評価方法により評価した。その結果を表4に示す。
<塩化ビニル系樹脂ラテックスの合成>
5重量%のラウリン酸アンモニウム(アニオン系界面活性剤)水溶液180g(全仕込み単量体に対して2重量%)を重合開始の90分後から360分後まで、40g/hrで連続仕込みとし、実施例6の脱イオン水を420gとした以外は、実施例6と同様の方法で塩化ビニル系樹脂ラテックス(ラテックス4)を得た。ラテックス4中の塩化ビニル系樹脂の平均粒子径は0.35μm(350nm)であった。
<感熱転写受像用シート4の作製>
感熱転写受像用シート1において、受容層に用いたラテックス1をラテックス4に変更した以外は、感熱転写受像用シート1と同様の方法で作製した(受容層中のエポキシ基含有ビニル含有量:塩化ビニル系樹脂100重量部に対して2.5重量部)。
本出願は、2009年12月10日出願の日本国特許出願(特願2009-280712)及び2009年12月16日出願の日本国特許出願(特願2009-285463)に基づくものであり、その内容はここに参照として取り込まれる。
Claims (15)
- 塩化ビニル及びエポキシ基含有ビニルを含む共重合体で、かつ、当該共重合体中のエポキシ基含有ビニルが0.1重量%以上3重量%未満である共重合体を含有する塩化ビニル系樹脂ラテックスであって、界面活性剤を含有せず、塩化ビニル系樹脂ラテックス中の固形分濃度が25重量%以上であることを特徴とする塩化ビニル系樹脂ラテックス。
- 塩化ビニル、エポキシ基含有ビニル及びカルボン酸ビニルエステルを含む共重合体で、かつ、当該共重合体中のエポキシ基含有ビニルが0.1重量%以上3重量%未満である共重合体を含有する塩化ビニル系樹脂ラテックスであって、界面活性剤を含有せず、塩化ビニル系樹脂ラテックス中の固形分濃度が25重量%以上であることを特徴とする塩化ビニル系樹脂ラテックス。
- カルボン酸ビニルエステルが、酢酸ビニルであることを特徴とする請求項2に記載の塩化ビニル系樹脂ラテックス。
- エポキシ基含有ビニルが、グリシジルメタクリレート又はアリルグリシジルエーテルであることを特徴とする請求項1~請求項3のいずれかの項に記載の塩化ビニル系樹脂ラテックス。
- エポキシ基含有ビニル単量体が塩化ビニル単量体及びエポキシ基含有ビニル単量体の合計に対して0.1重量%以上3重量%未満となる量で、塩化ビニル単量体及びエポキシ基含有ビニル単量体を重合開始剤の存在下、界面活性剤を含有しない水性媒体中で重合させる塩化ビニル系樹脂ラテックスの製造方法であって、塩化ビニル単量体及びエポキシ基含有ビニル単量体/水の重量比が1/3以上であり、エポキシ基含有ビニル単量体の一部又は全量を、重合中に水性媒体中に分割添加又は連続添加することを特徴とする請求項1又は請求項4に記載の塩化ビニル系樹脂ラテックスの製造方法。
- エポキシ基含有ビニル単量体が塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体の合計に対して0.1重量%以上3重量%未満となる量で、塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体を重合開始剤の存在下、界面活性剤を含有しない水性媒体中で重合させる塩化ビニル系樹脂ラテックスの製造方法であって、塩化ビニル単量体、エポキシ基含有ビニル単量体及びカルボン酸ビニルエステル単量体/水の重量比が1/3以上であり、エポキシ基含有ビニル単量体の一部又は全量を、重合中に水性媒体中に分割添加又は連続添加することを特徴とする請求項2~請求項4のいずれかの項に記載の塩化ビニル系樹脂ラテックスの製造方法。
- 重合中に、塩化ビニル単量体の一部を水性媒体中に分割添加又は連続添加することを特徴とする請求項5又は請求項6に記載の塩化ビニル系樹脂ラテックスの製造方法。
- 連鎖移動剤、還元剤又はその両者の存在下で重合させることを特徴とする請求項5~請求項7のいずれかの項に記載の塩化ビニル系樹脂ラテックスの製造方法。
- 請求項1~請求項4のいずれかの項に記載の塩化ビニル系樹脂ラテックスを含有することを特徴とする塩化ビニル系樹脂ラテックス組成物。
- 請求項1~請求項4のいずれかの項に記載の塩化ビニル系樹脂ラテックスから得られることを特徴とする塩化ビニル系樹脂粉体。
- 請求項10に記載の塩化ビニル系樹脂粉体及び有機溶媒を含有することを特徴とする塩化ビニル系樹脂組成物。
- 支持体上に断熱層及び受容層を有する感熱転写受像用シートであって、該受容層が、塩化ビニル系樹脂、及び塩化ビニル系樹脂100重量部に対してエポキシ基含有ビニル0.1~3重量部を含有し、かつ、界面活性剤を含有せず、該塩化ビニル系樹脂が、塩化ビニル単量体及びエポキシ基含有ビニル単量体の合計に対してエポキシ基含有ビニル単量体が0.1重量%以上となる量で、塩化ビニル単量体及びエポキシ基含有ビニル単量体を、界面活性剤を含有しない水性媒体中で乳化重合させることによって得られる塩化ビニル系樹脂ラテックスを用いて形成されたことを特徴とする感熱転写受像用シート。
- 塩化ビニル単量体及びエポキシ基含有ビニル単量体の他にカルボン酸ビニルエステル単量体を含有することを特徴とする請求項12に記載の感熱転写受像用シート。
- カルボン酸ビニルエステル単量体が、酢酸ビニルであることを特徴とする請求項13に記載の感熱転写受像用シート。
- エポキシ基含有ビニルが、グリシジルメタクリレート又はアリルグリシジルエーテルであることを特徴とする請求項12~請求項14のいずれかの項に記載の感熱転写受像用シート。
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US13/514,776 US8932985B2 (en) | 2009-12-10 | 2010-12-07 | Vinyl chloride-based resin latexes, processes for producing the same, and thermal transfer image-receiving sheet obtained using the same |
CN201080056216.XA CN102652144B (zh) | 2009-12-10 | 2010-12-07 | 氯乙烯类树脂胶乳、其制备方法以及使用该氯乙烯类树脂胶乳的热敏转印图像接受片材 |
EP10835951.4A EP2511310B1 (en) | 2009-12-10 | 2010-12-07 | Vinyl chloride resin latex, process for producing same, and thermal transfer image-receiving sheet obtained using same |
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JP2009280712A JP2011121274A (ja) | 2009-12-10 | 2009-12-10 | 感熱転写受像用シート |
JP2009-285463 | 2009-12-16 | ||
JP2009285463A JP5768318B2 (ja) | 2009-12-16 | 2009-12-16 | 塩化ビニル系樹脂ラテックス及びその製造方法 |
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JP5866935B2 (ja) | 2010-10-21 | 2016-02-24 | 東ソー株式会社 | 感熱昇華型転写受像シート用塩化ビニル樹脂ラテックス及びそれを用いた感熱昇華型転写受像シート |
JP5793624B2 (ja) * | 2012-09-20 | 2015-10-14 | エルジー・ケム・リミテッド | エネルギー低消費の塩化ビニル系ラテックス及びその製造方法 |
KR101702176B1 (ko) * | 2014-04-25 | 2017-02-02 | 주식회사 엘지화학 | 염화비닐 중합체의 제조방법, 염화비닐의 유화중합 조성물, 및 페이스트 염화비닐 중합체 |
KR101698054B1 (ko) | 2014-12-30 | 2017-01-19 | 한국기술교육대학교 산학협력단 | 반응성 라텍스 입자를 포함하는 고분자 필름 |
CN111116829A (zh) * | 2020-01-07 | 2020-05-08 | 河南理工大学 | 聚氯乙烯接枝共聚物及其制备方法 |
CN111074683B (zh) * | 2020-01-08 | 2021-11-09 | 江苏耐斯数码科技股份有限公司 | 一种热熔涂布热升华打印相纸及制备方法 |
CN111471248A (zh) * | 2020-04-27 | 2020-07-31 | 界首市云锋再生资源有限公司 | 一种用于塑料管材的改性颗粒及其生产工艺 |
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KR20120094021A (ko) | 2012-08-23 |
CN102652144A (zh) | 2012-08-29 |
EP2511310B1 (en) | 2016-03-02 |
US20120244297A1 (en) | 2012-09-27 |
US8932985B2 (en) | 2015-01-13 |
EP2511310A1 (en) | 2012-10-17 |
CN102652144B (zh) | 2014-12-10 |
EP2511310A4 (en) | 2013-06-12 |
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