JP4258709B2 - Polyolefin film for laminating, laminated film and packaging bag using the same - Google Patents
Polyolefin film for laminating, laminated film and packaging bag using the same Download PDFInfo
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- JP4258709B2 JP4258709B2 JP2003138608A JP2003138608A JP4258709B2 JP 4258709 B2 JP4258709 B2 JP 4258709B2 JP 2003138608 A JP2003138608 A JP 2003138608A JP 2003138608 A JP2003138608 A JP 2003138608A JP 4258709 B2 JP4258709 B2 JP 4258709B2
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- Prior art keywords
- film
- laminating
- layer
- antistatic
- present
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- 238000010030 laminating Methods 0.000 title claims description 41
- 238000004806 packaging method and process Methods 0.000 title claims description 10
- 229920000098 polyolefin Polymers 0.000 title claims description 5
- 239000010410 layer Substances 0.000 claims description 35
- 239000002344 surface layer Substances 0.000 claims description 24
- 239000002216 antistatic agent Substances 0.000 claims description 11
- 239000012748 slip agent Substances 0.000 claims description 10
- 239000005001 laminate film Substances 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 7
- 239000011342 resin composition Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002981 blocking agent Substances 0.000 claims description 4
- 229920005678 polyethylene based resin Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 description 21
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 19
- -1 and the like Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 9
- 235000014113 dietary fatty acids Nutrition 0.000 description 8
- 239000000194 fatty acid Substances 0.000 description 8
- 229930195729 fatty acid Natural products 0.000 description 8
- 235000011187 glycerol Nutrition 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 239000005977 Ethylene Substances 0.000 description 5
- 229920000092 linear low density polyethylene Polymers 0.000 description 5
- 239000004707 linear low-density polyethylene Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000002087 whitening effect Effects 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920005672 polyolefin resin Polymers 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 3
- 239000005909 Kieselgur Substances 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- QHZLMUACJMDIAE-UHFFFAOYSA-N 1-monopalmitoylglycerol Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(O)CO QHZLMUACJMDIAE-UHFFFAOYSA-N 0.000 description 2
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 229940049964 oleate Drugs 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229950011392 sorbitan stearate Drugs 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- MXJJJAKXVVAHKI-WRBBJXAJSA-N (9z,29z)-octatriaconta-9,29-dienediamide Chemical compound NC(=O)CCCCCCC\C=C/CCCCCCCCCCCCCCCCCC\C=C/CCCCCCCC(N)=O MXJJJAKXVVAHKI-WRBBJXAJSA-N 0.000 description 1
- OKMWKBLSFKFYGZ-UHFFFAOYSA-N 1-behenoylglycerol Chemical compound CCCCCCCCCCCCCCCCCCCCCC(=O)OCC(O)CO OKMWKBLSFKFYGZ-UHFFFAOYSA-N 0.000 description 1
- ARIWANIATODDMH-AWEZNQCLSA-N 1-lauroyl-sn-glycerol Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)CO ARIWANIATODDMH-AWEZNQCLSA-N 0.000 description 1
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 1
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004716 Ethylene/acrylic acid copolymer Substances 0.000 description 1
- ARIWANIATODDMH-UHFFFAOYSA-N Lauric acid monoglyceride Natural products CCCCCCCCCCCC(=O)OCC(O)CO ARIWANIATODDMH-UHFFFAOYSA-N 0.000 description 1
- MMQZBEXYFLXHEN-UHFFFAOYSA-N OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O Chemical compound OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O MMQZBEXYFLXHEN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- LWZFANDGMFTDAV-BURFUSLBSA-N [(2r)-2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O LWZFANDGMFTDAV-BURFUSLBSA-N 0.000 description 1
- NENOAJSZZPODGJ-OIMNJJJWSA-N [(2r)-2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] octanoate Chemical compound CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NENOAJSZZPODGJ-OIMNJJJWSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229940116224 behenate Drugs 0.000 description 1
- UKMSUNONTOPOIO-UHFFFAOYSA-M behenate Chemical compound CCCCCCCCCCCCCCCCCCCCCC([O-])=O UKMSUNONTOPOIO-UHFFFAOYSA-M 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229940105990 diglycerin Drugs 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- SWSBIGKFUOXRNJ-CVBJKYQLSA-N ethene;(z)-octadec-9-enamide Chemical compound C=C.CCCCCCCC\C=C/CCCCCCCC(N)=O.CCCCCCCC\C=C/CCCCCCCC(N)=O SWSBIGKFUOXRNJ-CVBJKYQLSA-N 0.000 description 1
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 description 1
- RZRNAYUHWVFMIP-HXUWFJFHSA-N glycerol monolinoleate Natural products CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-HXUWFJFHSA-N 0.000 description 1
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 description 1
- FEEPBTVZSYQUDP-UHFFFAOYSA-N heptatriacontanediamide Chemical compound NC(=O)CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC(N)=O FEEPBTVZSYQUDP-UHFFFAOYSA-N 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000002651 laminated plastic film Substances 0.000 description 1
- 229940070765 laurate Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- CKQVRZJOMJRTOY-UHFFFAOYSA-N octadecanoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O CKQVRZJOMJRTOY-UHFFFAOYSA-N 0.000 description 1
- FWRBVROZVUCLNY-UHFFFAOYSA-N octadecanoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O FWRBVROZVUCLNY-UHFFFAOYSA-N 0.000 description 1
- MKRYOOFLLNYJNB-UHFFFAOYSA-N octanoic acid;propane-1,2,3-triol Chemical class OCC(O)CO.OCC(O)CO.CCCCCCCC(O)=O MKRYOOFLLNYJNB-UHFFFAOYSA-N 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 229920005653 propylene-ethylene copolymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- DCBSHORRWZKAKO-UHFFFAOYSA-N rac-1-monomyristoylglycerol Chemical compound CCCCCCCCCCCCCC(=O)OCC(O)CO DCBSHORRWZKAKO-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229940100515 sorbitan Drugs 0.000 description 1
- 229950006451 sorbitan laurate Drugs 0.000 description 1
- 235000011067 sorbitan monolaureate Nutrition 0.000 description 1
- 229950004959 sorbitan oleate Drugs 0.000 description 1
- 229950003429 sorbitan palmitate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Description
【０００１】
【発明の属する技術分野】
本発明は、静防持続性に優れるフィルムに関し、ラミネート法の制限、接着剤種類の制限等が無く、十分な静防性、特に静防持続性に優れたラミネート用フィルム、ラミネートフィルムおよび包装袋に関する。
【０００２】
【従来の技術】
従来、粉粒体状やフレーク状の食品もしくは粉体状、顆粒状の薬品等、更には、電子部品等の包装などは、一般に、プラスチック製のフィルム積層体からなる包装材で包装されている。
【０００３】
このような食品・薬品・電子部品等の包装材の多くはポリオレフィンフィルムを積層した包装材が多く使用されている。
ポリオレフィンフィルムは一般に静防性は良くなく、このため内容物の充填時に摩擦や、包装材剥離時に静電気が発生する。このためポリオレフィン系フィルムには予め主として種々の帯電防止剤が樹脂中に練り込まれたものを用い製作されている。さらに、フィルムの滑り性を付与すべくスリップ剤を処方しているのが一般的である。
【０００４】
しかし、このように製作されたフィルムの多くはフィルム単独の静防性は良好であるが、高温下に置かれた場合経時によりその静防性は激変し極端な場合は静防効果そのものがなくなるようなこともある。また、シーラントフィルムと基材フィルムとを積層させた積層体に至ってはフィルム単体より経時による景況を受け易い。
【０００５】
さらに、経時による白化の問題があり、帯電防止剤のブリード過多が原因による見栄えの悪さが商品価値低下や、ラミネート加工工程のロール等にフィルム表面ブリード物が転写してしまう工程汚染等の原因につながる恐れもある。
【０００６】
前記したトラブルを解消するためには単純に帯電防止剤の使用量を低減することが一番の良策であるが、低減すると本来必要とされる静防性が不良となり解決に至らないのが現状である。
【０００７】
【発明が解決しようとする課題】
本発明は、前記した問題点を解決するためになされたもので、ラミネート法の制限、接着剤種類の制限等が無く、十分な静防性、特に高温下で経時した時の静防持続性に優れたラミネート用フィルム、ラミネートフィルムおよび包装袋を提供する目的にある。
【０００８】
【課題を解決する為の手段】
上記目標を達成するため、帯電防止剤を含むポリオレフィン系シーラントフィルムであってフィルム中にスリップ剤を含まないことを特徴とする。
【０００９】
さらにまた、本発明の静防持続性に優れた包装袋はラミネート用フィルム又はおよびラミネートフィルムを層構成に含んでなることを特徴とする。
【００１０】
上記構成からなる本発明の静防持続性に優れたラミネート用フィルム、ラミネートフィルムおよび包装袋はラミネート法の制限、接着剤種類の制限等が無く、十分な静防性、特に高温下で経時した時の静防持続性を有することができる。
【００１１】
【発明の実施の形態】
以下、本発明の静防持続性に優れたラミネート用フィルム、ラミネートフィルムおよび包装袋の実施の形態を説明する。
【００１２】
本発明において、ポリオレフィン系樹脂組成物は、プロピレン単独重合体、またはプロピレンと炭素数２〜１２（炭素数３は除く）の少なくとも１種以上との共重合体、例えばプロピレン−エチレン共重合体、プロピレン−ブテン共重合体、プロピレン−エチレンブロック共重合体、プロピレン−ブテンブロック共重合体、プロピレン−エチレン−ブテン共重合体などのプロピレン系樹脂や、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、線状低密度ポリエチレン、直鎖状低密度ポリエチレン、エチレン・酢酸ビニル共重合体、エチレン・アクリル酸共重合体、エチレン・メタクリル酸共重合体などのエチレン系樹脂から選ばれた１種類又は２種類以上の混合物であってもよい。好適にはエチレン系樹脂が選ばれる。
【００１３】
本発明の静防持続性に優れたラミネート用フィルムは単層はもとより、必要に応じて２層以上の複数層積層することができる。また、用いる樹脂はポリオレフィン系樹脂であれば複数層の各層に用いる組成・ＭＦＲ・密度等を一致させる必要は無い。好ましい積層と樹脂組成として、一方の表層（Ａ）と中間層（Ｂ）および他方の表層（Ｃ）と言った３層構成が挙げられ、各々の樹脂組成は密度が一方の表層の密度（ρａ）、中間層の密度（ρｂ）、他方の表層の密度（ρｃ）とした場合、（ρａ）≧（ρｂ）≧（ρｃ）、（但し、（ρａ）＞（ρｃ））であるポリエチレン系樹脂が静防性の発現性や接着強度維持の面では好適である。
【００１４】
本発明に使用される帯電防止剤は、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル等を使用することができる。詳しくは、グリセリンモノラウレート、グリセリンモノミリステート、グリセリンモノパルミテート、グリセリンモノステアレート、グリセリンモノベヘネート、グリセリンモノオレート、グリセリンモノ・ジラウレート、グリセリンモノ・ジパルミレート、グリセリンモノ・ジステアレート、グリセリンモノ・ジベヘネート、グリセリンモノ・ジオレート、グリセリンジ・トリオレート、グリセリンジ・トリステアレート等のモノグリセリン脂肪酸エステルや、ジグリセリンラウレート、ジグリセリンステアレート、ジグリセリンオレート、ジグリセリンカプリレート等のジグリセリン脂肪酸エステルを挙げることができ、また、テトラグリセリンステアレート、テトラグリセリンオレート、ヘキサグリセリンステアレート、デカグリセリンステアレート等のポリグリセリン脂肪酸エステルを挙げることができる。さらに、ソルビタンラウレート、ソルビタンパルミテート、ソルビタンステアレート、ソルビタンオレート、ソルビタンベヘネート、ソルビタンカプリレート等のソルビタン脂肪酸エステルを挙げることができる。
【００１５】
本発明の静防持続性に優れたラミネート用フィルムが積層の場合、帯電防止剤を添加する層は特に制限が無く、ある一層のみの添加でも複数層あるいは全層に添加しても構わないが、ラミネート強度低下を抑制するためには基材と貼り合せする側の層には添加しない方が良い。
【００１６】
本発明に用いる帯電防止剤の配合量は本発明のポリオレフィン系樹脂全体を１００重量部に対し、０．１〜１．５重量部が好ましく、０．２〜１．０重量部がより好ましい。０．１重量部を下回ると静防効果が望めない。また、１．５重量部を上回ると静防性は十分あっても表面へのブリードが多くなり過ぎ、静防性は十分あっても耐白化性が劣り好ましくない。
【００１７】
本発明のラミネート用フィルムへの帯電防止剤の配合方法は、マスターバッチ方式でも、製膜直前のペレットブレンド方式でも可能であり、特に限定されるものではない。
【００１８】
また、本発明に使用されるアンチブロッキング剤は特に限定されないが、無機及び／又は有機の微粒子が好ましい。具体的には、無機微粒子としては、例えばシリカ、ゼオライト、珪藻土、タルク、カオリナイト及び非晶性アルミノシリケート等が挙げられる。又、有機粒子としては、例えば実質的に変形しないポリマーからなり、乳化重合又は懸濁重合等により得られるポリメチルメタクリレート、ポリスチレン及びポリアミド等が挙げられる。アンチブロッキング剤として添加しても結果的に滑りにも影響することと、フィルムの透明性、コスト面から無機微粒子系のシリカ、ゼオライト及び珪藻土が好ましい。該アンチブロッキング剤の平均粒径は特に限定しないが、滑り性、外観、透明性及び耐ブロッキング性面を考慮すると１〜２０μｍ程度のものが好ましく、２〜１５μｍがより好ましい。
【００１９】
本発明の静防持続性に優れたラミネート用フィルムが積層の場合、アンチブロッキング剤を添加する層は特に制限が無く、ある一層のみの添加でも複数層あるいは全層に添加しても構わない。
【００２０】
本発明に用いるアンチブロッキング剤の量は特に限定されず、滑り性、外観、透明性及び耐ブロッキング性を阻害しない範囲で自由に使用することができ、ポリオレフィン系樹脂１００重量部に対して、通常３重量部以下、好ましくは２重量部以下である。
【００２１】
本発明のラミネート用フィルムへのアンチブロッキング剤の配合方法は、マスターバッチ方式でも、製膜直前のペレットブレンド方式でも可能であり、特に限定されるものではない。
【００２２】
本発明のラミネート用フィルムにはスリップ剤を含まない。ここでスリップ剤とは公知のものであり、フィルムの滑り性付与を目的に添加する無機系以外の有機系物質のうち、炭化水素系スリップ剤、脂肪酸系スリップ剤、高級アルコール系スリップ剤、アミド系スリップ剤を指しており、例えば流動性パラフィン、ポリエチレンワックス等の炭化水素系スリップ剤、ステアリン酸、ベヘニン酸、１２−ヒドロキシステアリン酸等の脂肪酸系スリップ剤、オレイン酸アミド、エルカ酸アミド、ベヘニン酸アミド、メチレンビスステアリン酸アミド、エチレンビスオレイン酸アミド、エチレンビスエルカ酸アミド、エチレンビスステアリン酸アミド等のアミド系スリップ剤が挙げられる。これらを添加すると初期の静防性は良好であっても高温下で経時した時の静防持続性が劣り好ましくない。特に、接着剤を用い基材フィルムと積層したラミネートフィルムに至っては静防性の悪化は激しく好ましくない。
【００２３】
本発明のラミネート用フィルムの成形方法は、特に限定するものではなく、例えばインフレーション押出成形法、Ｔダイ押出成形法等の利用が可能である。
【００２４】
本発明のラミネート用フィルムの厚みは特に限定されるものではないが、１０〜２００μｍが好ましく、２０〜１５０μｍがより好ましい。また、例えば３層構成の場合は一方の表層、中間層、他方の表層のそれぞれの好適な厚みは次に示す通りである。一方の表層および他方の表層の厚みは１〜１２０μｍが好ましく、２〜８０μｍがより好ましい。中間層の厚みは１〜１２０μｍが好ましく、２〜８０μｍがより好ましい。
【００２５】
本発明のラミネート用フィルムの各層の厚み比は、一方の表層の厚み１に対して、中間層の厚みは０．５〜３０が好ましく、１〜２０がより好ましい。また、他方の表層の厚みは０．２〜１０が好ましく、０．３〜５がより好ましい。さらに具体的な厚み比は、製膜性、フィルム物性及びフィルム性能面を考慮すると、一方の表層／中間層／他方の表層＝１／１／１〜１／１５／１程度が好ましい。
【００２６】
本発明のラミネート用フィルムの製造に際しては、本発明の効果が損なわれない限り必要に応じて安定剤、可塑剤、着色剤、等の公知の添加剤を配合されていてもよい。
【００２７】
更に、本発明のラミネートフィルムは、基材層を設けその一方の面に本発明のラミネート用フィルムが単層の場合は一方の表面、複数層構成の場合は他方の表層が外側になるように配して貼合して得られる。基材層としては、例えば、二軸延伸ポリプロピレンフィルム、二軸延伸ポリエステルフィルム、二軸延伸ナイロンフィルム、金属蒸着二軸延伸フィルムなど、二軸延伸フィルムを典型的なものとして挙げることができる。ラミネート方法は、自体既知の方法で行なえばよく、例えばドライラミネート法や押出しサンドラミネート法等が挙げられる。
【００２８】
本発明の包装体は、本発明のラミネート用フィルムの表面、本発明のラミネートフィルムのラミネート用フィルム表面（複数層の場合は他方の表面）、他のフィルムないし成形物表面の熱可塑性樹脂組成物または不織布や紙からなるヒートシール層表面の中から選ばれた２組の表面とをヒートシールすることで得られる。包装体の製造方法は自体既知の方法で行なえばよく、例えば簡単な手動式シーラーによる方法、三方シールや溶断シール製袋機による方法等が挙げられる。
【００２９】
次に、本発明のシーラントフィルムの製造方法について説明する。まず、本発明のシーラントフィルムの製造に用いる各々の樹脂組成物を所定の組成比に混合し、各溶融押出機に供給し、２１０〜２８０℃の温度で溶融押出しし、濾過フィルターを経た後、口金からシート状に成形し、２０〜８０℃に調整された金属ドラムに巻き付け冷却固化し、金属ドラムの速度を調整して、一方の表面（複数層の場合は一方の表面層の表面）に濡れ張力が３６ｍＮ／ｍ以上となるようにコロナ処理を施し、任意の厚みの静防性、静防持続性の優れたラミネート用フィルムを得る。
【００３０】
以下、実施例によって本発明を具体的に説明するが、本発明の範囲は実施例限定されるものではない。なお、本発明において用いた特性値は次の測定法による。
【００３１】
（１）表面抵抗率（ＭΩ／ｃｍ）
ラミネート用フィルム及びラミネートフィルムを作製後直ちに４０℃恒温室に保管し、１０日後、３０日後、６０日後毎にＪＩＳ Ｋ−６９１１に準拠し、２３℃、相対湿度５０％環境下で１６時間調製後ヒートシール層表面の表面固有抵抗率を測定した。
【００３２】
（２）耐白化性
ラミネート用フィルムを作成直後のヘイズ（Ｈ1）と、ラミネート用フィルム作成後直ちに４０℃恒温室に保管し、６０日放置後のヘイズ（Ｈ2）を測定し、下記式にて求められた数値を耐白化性（△Ｈ）として表した。この数値が低いほど耐白化性は良好である。
（△Ｈ）＝（Ｈ2）−（Ｈ1）
【００３３】
【実施例】
次に実施例及び比較例により本発明を具体的に示すが、本発明はもとより下記実施例により制限を受けるものではなく、本発明の趣旨に適合しうる範囲で適宜変更を加え実施することも可能であり、本発明の技術範囲に含まれる。
【００３４】
（実施例１）
３層構成とし、一方の表層として密度０．９４０の直鎖状低密度ポリエチレン（宇部興産社製 ユメリット ４０４０ＦＣ）を１００重量部、中間層として０．９２０の直鎖状低密度ポリエチレン（宇部興産社製 ユメリット ２０４０Ｆ）を１００重量部、帯電防止剤剤（ソルビタンステアレート）を０．２重量部配合し、他方の表層として密度０．９２０の直鎖状低密度ポリエチレン（宇部興産社製 ユメリット ２０４０Ｆ）を１００重量部、平均粒径１０μｍの球状シリカを１．０重量部、平均粒径５μｍの珪藻土を１．０重量部、帯電防止剤剤としてモノグリセリンモノステアレートを０．１５重量部とポリグリセリンモノステアレートを１．３５重量部配合し、各層の厚み比が一方の表層／中間層／他方の表層＝１／３／１、厚みが６０μｍのラミネート用フィルムを得た。
【００３５】
このラミネート用フィルムの一方の表層の表面と基材層として二軸延伸ポリエステルフィルム（東洋紡績社製 Ｅ５１００、厚み１２μｍ）のコロナ処理が施された表面とをポリウレタンエーテル系接着剤を用いドライラミネート法により貼合し、４０℃恒温室で３日間硬化させてラミネートフィルムを得た。このラミネート用フィルムの結果を表１に、ラミネートフィルムの結果を表２に示す。尚、ドライラミネートで用いた接着剤及び塗布量を下記に示す。
【００３６】
（比較例１）
実施例１の中間層にエチレンビスオレイン酸アミドを０．０５重量部、他方の表層に０．１重量部添加した他は実施例１と同様にしてラミネート用フィルム及びラミネートフィルムを得た。このラミネート用フィルムの結果を表１に、ラミネートフィルムの結果を表２に示す。
【００３７】
接着剤：ポリエーテルウレタン系接着剤［東洋モートン社製 ／トモフレックス ＴＭ３２９／ＣＡＴ−８Ｂ＝１／１（塗工固形分２０％）］
塗布量：３．０ｇ／ｍ2
【００３８】
【表１】
【表２】
【発明の効果】
本発明の静防持続性に優れたラミネート用フィルム、ラミネートフィルムおよび包装袋によれば、ラミネート法の制限、接着剤種類の制限等が無く、十分な静防性、特に高温下で経時した時の静防持続性を有する。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a film excellent in antistatic durability, and there is no limitation on the laminating method, limitation on the kind of adhesive, and the like, and a film for laminating, a laminate film and a packaging bag excellent in sufficient antistatic properties, particularly excellent antistatic durability About.
[0002]
[Prior art]
Conventionally, powdered and flaky foods, powdered and granular chemicals, and packaging of electronic parts and the like are generally packaged with a packaging material made of a plastic film laminate. .
[0003]
Many of such packaging materials for foods, medicines, electronic parts and the like are used in many cases.
Polyolefin films generally have poor antistatic properties, and as a result, friction occurs when the contents are filled, and static electricity is generated when the packaging material is peeled off. For this reason, polyolefin-based films are produced mainly using various antistatic agents previously kneaded in a resin. Furthermore, it is common to formulate a slip agent in order to impart film slipperiness.
[0004]
However, many of the films produced in this way have good antistatic properties of the film alone, but when placed under high temperature, the antistatic properties change drastically with time, and in extreme cases, the antistatic effect itself disappears. There is also such a thing. In addition, a laminated body in which a sealant film and a base film are laminated is more susceptible to business conditions over time than a single film.
[0005]
In addition, there is a problem of whitening over time, and the poor appearance due to excessive bleeding of the antistatic agent is a cause of deterioration in product value and contamination of the process where the film surface bleed material is transferred to the roll of the laminating process etc. There is also a risk of connection.
[0006]
In order to solve the above-mentioned troubles, it is best to simply reduce the amount of the antistatic agent used. However, if it is reduced, the required static prevention property will be poor and will not be resolved. It is.
[0007]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-mentioned problems, and there is no limitation on the laminating method, limitation on the kind of adhesive, etc., and sufficient antistatic properties, especially the antistatic sustainability when aged at high temperatures. It is an object to provide a film for laminating, a laminating film, and a packaging bag excellent in the above.
[0008]
[Means for solving the problems]
In order to achieve the above goal, the film is a polyolefin-based sealant film containing an antistatic agent, and the film does not contain a slip agent.
[0009]
Furthermore, the packaging bag excellent in antistatic durability of the present invention is characterized by comprising a laminating film or a laminating film in a layer structure.
[0010]
The laminating film, laminating film and packaging bag of the present invention having the above-described constitution and excellent antistatic durability have no restrictions on the laminating method, adhesive type, etc., and sufficient antistatic properties, especially at high temperatures over time. It can have a static and protective duration.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a film for laminating, a laminated film and a packaging bag excellent in antistatic durability of the present invention will be described.
[0012]
In the present invention, the polyolefin resin composition is a propylene homopolymer or a copolymer of propylene and at least one of 2 to 12 carbon atoms (excluding 3 carbon atoms), such as a propylene-ethylene copolymer, Propylene-based resins such as propylene-butene copolymer, propylene-ethylene block copolymer, propylene-butene block copolymer, propylene-ethylene-butene copolymer, low density polyethylene, medium density polyethylene, high density polyethylene, One or two types selected from ethylene-based resins such as linear low-density polyethylene, linear low-density polyethylene, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, and ethylene / methacrylic acid copolymer A mixture of the above may also be used. An ethylene resin is preferably selected.
[0013]
The laminating film excellent in antistatic durability of the present invention can be laminated not only as a single layer but also as a plurality of layers as required. Further, if the resin used is a polyolefin-based resin, it is not necessary to match the composition, MFR, density, etc. used for each of the multiple layers. A preferred laminate and resin composition include a three-layer structure of one surface layer (A), an intermediate layer (B), and the other surface layer (C). Each resin composition has a density of one surface layer (ρa ), When the density of the intermediate layer (ρb) and the density of the other surface layer (ρc), (ρa) ≧ (ρb) ≧ (ρc), where (ρa)> (ρc)) However, it is preferable in terms of static resistance and maintaining adhesive strength.
[0014]
As the antistatic agent used in the present invention, glycerin fatty acid ester, sorbitan fatty acid ester and the like can be used. Specifically, glycerol monolaurate, glycerol monomyristate, glycerol monopalmitate, glycerol monostearate, glycerol monobehenate, glycerol monooleate, glycerol mono-dilaurate, glycerol mono-dipallate, glycerol mono-distearate, glycerol mono-stearate Monoglycerin fatty acid esters such as dibehenate, glycerol mono-diolate, glycerol di-trioleate, glycerol di-tristearate, and diglycerol fatty acids such as diglycerol laurate, diglycerol stearate, diglycerin oleate, diglycerol caprylate Esters, tetraglycerin stearate, tetraglycerin oleate, hexaglycerin stearate, decaglycerin It may be mentioned polyglycerol fatty acid esters such as stearates. Furthermore, sorbitan fatty acid esters such as sorbitan laurate, sorbitan palmitate, sorbitan stearate, sorbitan oleate, sorbitan behenate, sorbitan caprylate and the like can be mentioned.
[0015]
When the laminating film having excellent antistatic durability of the present invention is laminated, the layer to which the antistatic agent is added is not particularly limited, and it may be added to a single layer or a plurality of layers or all layers. In order to suppress a decrease in laminate strength, it is better not to add to the layer on the side to be bonded to the substrate.
[0016]
The blending amount of the antistatic agent used in the present invention is preferably 0.1 to 1.5 parts by weight, more preferably 0.2 to 1.0 part by weight based on 100 parts by weight of the whole polyolefin resin of the present invention. If the amount is less than 0.1 parts by weight, the antistatic effect cannot be expected. On the other hand, when the amount exceeds 1.5 parts by weight, even if the antistatic property is sufficient, there is too much bleeding on the surface, and even if the antistatic property is sufficient, the whitening resistance is inferior.
[0017]
The blending method of the antistatic agent in the laminating film of the present invention can be either a master batch system or a pellet blend system just before film formation, and is not particularly limited.
[0018]
The antiblocking agent used in the present invention is not particularly limited, but inorganic and / or organic fine particles are preferable. Specifically, examples of the inorganic fine particles include silica, zeolite, diatomaceous earth, talc, kaolinite, and amorphous aluminosilicate. Examples of the organic particles include polymethyl methacrylate, polystyrene, polyamide, and the like that are made of a polymer that does not substantially deform and are obtained by emulsion polymerization or suspension polymerization. Silica, zeolite, and diatomaceous earth based on inorganic fine particles are preferable from the viewpoint of effecting slippage even when added as an antiblocking agent, transparency of the film, and cost. The average particle size of the anti-blocking agent is not particularly limited, but is preferably about 1 to 20 μm, more preferably 2 to 15 μm in consideration of slipperiness, appearance, transparency, and blocking resistance.
[0019]
When the laminating film having excellent antistatic durability of the present invention is laminated, the layer to which the anti-blocking agent is added is not particularly limited, and it may be added to a single layer or a plurality of layers or all layers.
[0020]
The amount of the anti-blocking agent used in the present invention is not particularly limited and can be freely used as long as it does not impair the slipperiness, appearance, transparency and blocking resistance, and is usually based on 100 parts by weight of the polyolefin resin. 3 parts by weight or less, preferably 2 parts by weight or less.
[0021]
The blending method of the antiblocking agent to the laminating film of the present invention can be either a master batch method or a pellet blend method immediately before film formation, and is not particularly limited.
[0022]
The laminating film of the present invention does not contain a slip agent. Here, the slip agent is a known one, and among the organic materials other than inorganic materials added for the purpose of imparting the slipperiness of the film, hydrocarbon slip agent, fatty acid slip agent, higher alcohol slip agent, amide This refers to slipping agents such as liquid paraffins, hydrocarbon waxes such as polyethylene wax, stearic acid, behenic acid, fatty acid slip agents such as 12-hydroxystearic acid, oleic acid amide, erucic acid amide, behenine Examples thereof include amide-based slip agents such as acid amide, methylene bis stearic acid amide, ethylene bis oleic acid amide, ethylene bis erucic acid amide, and ethylene bis stearic acid amide. If these are added, even if the initial static resistance is good, the static resistance persistence when aged at high temperatures is inferior. In particular, the deterioration of the static prevention property is severely undesirable in a laminated film laminated with a base film using an adhesive.
[0023]
The method for forming the laminating film of the present invention is not particularly limited, and for example, an inflation extrusion molding method, a T-die extrusion molding method, or the like can be used.
[0024]
The thickness of the laminating film of the present invention is not particularly limited, but is preferably 10 to 200 μm, and more preferably 20 to 150 μm. Further, for example, in the case of a three-layer structure, suitable thicknesses of one surface layer, an intermediate layer, and the other surface layer are as follows. 1-120 micrometers is preferable and, as for the thickness of one surface layer and the other surface layer, 2-80 micrometers is more preferable. The thickness of the intermediate layer is preferably 1 to 120 μm, more preferably 2 to 80 μm.
[0025]
The thickness ratio of each layer of the film for laminating of the present invention is preferably 0.5 to 30 and more preferably 1 to 20 as the thickness of the intermediate layer with respect to the thickness 1 of one surface layer. Moreover, 0.2-10 are preferable and, as for the thickness of the other surface layer, 0.3-5 are more preferable. Further, the specific thickness ratio is preferably about one surface layer / intermediate layer / the other surface layer = 1/1/1 to 1/15/1 in consideration of film forming properties, film properties, and film performance.
[0026]
In the production of the laminating film of the present invention, known additives such as stabilizers, plasticizers, colorants and the like may be blended as necessary as long as the effects of the present invention are not impaired.
[0027]
Furthermore, the laminate film of the present invention is provided with a base material layer so that one surface is provided on one side when the laminate film of the present invention is a single layer, and the other surface layer is provided on the outside in the case of a multi-layer structure. Obtained by arranging and bonding. Typical examples of the base material layer include biaxially stretched films such as a biaxially stretched polypropylene film, a biaxially stretched polyester film, a biaxially stretched nylon film, and a metal-deposited biaxially stretched film. The laminating method may be a method known per se, and examples thereof include a dry laminating method and an extrusion sand laminating method.
[0028]
The package of the present invention comprises a thermoplastic resin composition on the surface of the laminating film of the present invention, the surface of the laminating film of the laminating film of the present invention (the other surface in the case of multiple layers), and the surface of other films or molded articles. Alternatively, it can be obtained by heat-sealing two sets of surfaces selected from the surfaces of a heat-seal layer made of nonwoven fabric or paper. The packaging body may be produced by a method known per se, such as a simple manual sealer method, a three-side seal or a fusing seal bag making machine.
[0029]
Next, the manufacturing method of the sealant film of this invention is demonstrated. First, each resin composition used for production of the sealant film of the present invention is mixed in a predetermined composition ratio, supplied to each melt extruder, melt extruded at a temperature of 210 to 280 ° C., passed through a filter, Formed into a sheet from the die, wound around a metal drum adjusted to 20 to 80 ° C., cooled and solidified, adjusted the speed of the metal drum, and on one surface (the surface of one surface layer in the case of multiple layers) Corona treatment is performed so that the wetting tension is 36 mN / m or more, and a film for laminating having an arbitrary thickness and excellent antistatic properties and antistatic durability is obtained.
[0030]
EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, the scope of the present invention is not limited to an Example. In addition, the characteristic value used in this invention is based on the following measuring method.
[0031]
(1) Surface resistivity (MΩ / cm)
Immediately after producing the film for laminating and the laminating film, store it in a constant temperature room at 40 ° C., and after 10 days, 30 days, and 60 days, in accordance with JIS K-6911, after preparing for 16 hours in an environment of 23 ° C. and 50% relative humidity The surface resistivity on the surface of the heat seal layer was measured.
[0032]
(2) Haze (H 1 ) immediately after making the whitening-resistant laminate film, and immediately after making the laminate film, store in a constant temperature room at 40 ° C., and measure haze (H 2 ) after standing for 60 days. The numerical value obtained in (1) was expressed as whitening resistance (ΔH). The lower this value, the better the whitening resistance.
(ΔH) = (H 2 ) − (H 1 )
[0033]
【Example】
Next, the present invention will be specifically described by way of examples and comparative examples. However, the present invention is not limited by the following examples as a matter of course, and may be implemented with appropriate modifications within a scope that can meet the gist of the present invention. And is within the scope of the present invention.
[0034]
Example 1
It has a three-layer structure, and as one surface layer, a linear low-density polyethylene (Ube Industries 4040FC) having a density of 0.940 is 100 parts by weight, and an intermediate layer is a 0.920 linear low-density polyethylene (Ube Industries). 100 parts by weight of manufactured Umerit 2040F) and 0.2 parts by weight of an antistatic agent (sorbitan stearate), and a linear low density polyethylene with a density of 0.920 as the other surface layer (Umerit 2040F manufactured by Ube Industries) 100 parts by weight, 1.0 part by weight of spherical silica having an average particle diameter of 10 μm, 1.0 part by weight of diatomaceous earth having an average particle diameter of 5 μm, 0.15 part by weight of monoglycerin monostearate as an antistatic agent, and poly 1.35 parts by weight of glycerin monostearate is blended, and the thickness ratio of each layer is one surface layer / intermediate layer / the other surface layer = 1/3/1, and the thickness is 60 μm. To obtain a laminate film for.
[0035]
A dry laminating method using a polyurethane ether adhesive with a surface of one surface layer of the laminating film and a surface subjected to corona treatment of a biaxially stretched polyester film (E5100, Toyobo Co., Ltd., E12100, thickness 12 μm) as a base material layer Was laminated in a constant temperature room at 40 ° C. for 3 days to obtain a laminate film. The results of this laminating film are shown in Table 1, and the results of the laminated film are shown in Table 2. In addition, the adhesive agent and application amount which were used by dry lamination are shown below.
[0036]
(Comparative Example 1)
A laminating film and a laminated film were obtained in the same manner as in Example 1 except that 0.05 part by weight of ethylenebisoleic acid amide was added to the intermediate layer of Example 1 and 0.1 part by weight of the other surface layer was added. The results of this laminating film are shown in Table 1, and the results of the laminated film are shown in Table 2.
[0037]
Adhesive: Polyether urethane-based adhesive [Toyoflex TM329 / CAT-8B = 1/1 (coating solid content 20%) manufactured by Toyo Morton Co., Ltd.]
Application amount: 3.0 g / m 2
[0038]
[Table 1]
[Table 2]
【The invention's effect】
According to the film for laminating, laminating film and packaging bag of the present invention having excellent antistatic durability, there is no limitation on the laminating method, the type of adhesive, etc., and sufficient antistatic properties, especially when it is aged at high temperatures. The antistatic durability of
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2003138608A JP4258709B2 (en) | 2003-05-16 | 2003-05-16 | Polyolefin film for laminating, laminated film and packaging bag using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003138608A JP4258709B2 (en) | 2003-05-16 | 2003-05-16 | Polyolefin film for laminating, laminated film and packaging bag using the same |
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| Publication Number | Publication Date |
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| JP2004339398A JP2004339398A (en) | 2004-12-02 |
| JP4258709B2 true JP4258709B2 (en) | 2009-04-30 |
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| US7085175B2 (en) * | 2004-11-18 | 2006-08-01 | Freescale Semiconductor, Inc. | Word line driver circuit for a static random access memory and method therefor |
| JP2010241445A (en) * | 2009-04-02 | 2010-10-28 | Fukusuke Kogyo Co Ltd | Method for manufacturing food container, and food container manufactured by the method |
| JP5929317B2 (en) * | 2012-02-29 | 2016-06-01 | 大日本印刷株式会社 | Sealant film and packaging material using the same |
| JP7296059B2 (en) * | 2017-03-31 | 2023-06-22 | 大日本印刷株式会社 | Laminate and packaging bag provided with the same |
| JP2018171785A (en) * | 2017-03-31 | 2018-11-08 | 大日本印刷株式会社 | Laminate and packaging bag having the same |
| JP6869089B2 (en) * | 2017-04-21 | 2021-05-12 | フタムラ化学株式会社 | Polyethylene sealant film |
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