JP2002113825A - Print laminating laminated film - Google Patents
Print laminating laminated filmInfo
- Publication number
- JP2002113825A JP2002113825A JP2000309732A JP2000309732A JP2002113825A JP 2002113825 A JP2002113825 A JP 2002113825A JP 2000309732 A JP2000309732 A JP 2000309732A JP 2000309732 A JP2000309732 A JP 2000309732A JP 2002113825 A JP2002113825 A JP 2002113825A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- ethylene
- resin layer
- film
- laminated film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010030 laminating Methods 0.000 title abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 176
- 239000011347 resin Substances 0.000 claims abstract description 176
- 239000005977 Ethylene Substances 0.000 claims abstract description 76
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000004711 α-olefin Substances 0.000 claims abstract description 40
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 31
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 15
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 11
- 238000003475 lamination Methods 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 18
- 229920001577 copolymer Polymers 0.000 claims description 14
- 229920001684 low density polyethylene Polymers 0.000 claims description 14
- 239000004702 low-density polyethylene Substances 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- 238000010828 elution Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 239000002685 polymerization catalyst Substances 0.000 claims description 3
- 238000010526 radical polymerization reaction Methods 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229920006026 co-polymeric resin Polymers 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 6
- 230000037303 wrinkles Effects 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 72
- 238000001125 extrusion Methods 0.000 description 21
- 238000011156 evaluation Methods 0.000 description 18
- 239000000853 adhesive Substances 0.000 description 16
- 230000001070 adhesive effect Effects 0.000 description 16
- 229920000642 polymer Polymers 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 9
- -1 polypropylene Polymers 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005194 fractionation Methods 0.000 description 6
- 239000005001 laminate film Substances 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000003851 corona treatment Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000004840 adhesive resin Substances 0.000 description 4
- 229920006223 adhesive resin Polymers 0.000 description 4
- 239000002216 antistatic agent Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 3
- 229920003355 Novatec® Polymers 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 3
- RLAWWYSOJDYHDC-BZSNNMDCSA-N lisinopril Chemical compound C([C@H](N[C@@H](CCCCN)C(=O)N1[C@@H](CCC1)C(O)=O)C(O)=O)CC1=CC=CC=C1 RLAWWYSOJDYHDC-BZSNNMDCSA-N 0.000 description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- 101100347518 Arabidopsis thaliana MYB105 gene Proteins 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012968 metallocene catalyst Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 238000012685 gas phase polymerization Methods 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012690 ionic polymerization Methods 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000009824 pressure lamination Methods 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
- 230000000630 rising effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、プリントラミネー
ト用積層フィルムに関し、さらに詳しくは、印刷紙、写
真などの表面保護に用いられ、加熱圧着によって印刷紙
などの印刷面に接着されるプリントラミネート用積層フ
ィルムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate film for print lamination, and more particularly, to a laminate film for print lamination which is used for protecting the surface of printing paper, photographs, etc., and which is adhered to a printing surface such as printing paper by heat and pressure. It relates to a laminated film.
【0002】[0002]
【従来の技術】印刷紙、写真などの表面保護、耐水性や
耐油性の付与あるいは、表面光沢向上などを目的とし
て、印刷紙、写真などにフィルムをラミネートすること
は、広く行われている。このようなプリントラミネート
用フィルムとして、基材フィルムに延伸ポリプロピレン
フィルムが、またその接着剤として、溶剤型エチレン・
酢酸ビニル共重合体系接着剤が多用されている。しかし
ながら、溶剤型の接着剤を用いる方法は、溶剤を取り扱
うことより、特に溶剤回収や作業環境に留意する必要が
あり、また一般には硬化剤を用いることから、そのポッ
トライフを考慮する必要があった。2. Description of the Related Art Laminating a film on a printing paper, a photograph, or the like is widely performed for the purpose of protecting the surface of the printing paper, a photograph, or the like, imparting water resistance or oil resistance, or improving the surface gloss. As such a film for print lamination, a stretched polypropylene film is used as a base film, and a solvent-type ethylene
Vinyl acetate copolymer adhesives are frequently used. However, in the method using a solvent-type adhesive, it is necessary to pay particular attention to solvent recovery and working environment rather than handling the solvent, and it is generally necessary to consider the pot life of the method because a curing agent is used. Was.
【0003】有機溶剤や接着剤を使用することなく、2
種以上のエチレン・アルキルエステル共重合体およびエ
チレン・酢酸ビニル共重合体の混合物よりなる感熱接着
層を付与した、二軸延伸ポリプロピレンラミネートフィ
ルムの感熱接着面と印刷紙の接着面とを加熱圧着のみで
貼り合わせてプリントラミネート製品を製造する方法
(特開昭56−42652号公報、特公平4−2431
号公報、特開平3−73341号公報など)がある。[0003] Without using organic solvents or adhesives,
Heat-bonding only the heat-sensitive adhesive surface of a biaxially stretched polypropylene laminated film and the adhesive surface of printing paper to which a heat-sensitive adhesive layer made of a mixture of at least one kind of ethylene-alkyl ester copolymer and ethylene-vinyl acetate copolymer has been applied. To manufacture a printed laminate product by laminating (Japanese Patent Application Laid-Open No. Sho 56-42652, Japanese Patent Publication No. Hei 4-2431).
And Japanese Unexamined Patent Publication No. 3-73341).
【0004】しかしながら、印刷面との易接着性の要求
に対して、感熱接着層のエチレン系共重合体樹脂は、官
能性モノマー含量が極力多いものを使用するため、該方
法で得られるラミネートフィルムは、滑り性、抗ブロッ
キング性に劣る。また、該方法で得られるラミネートフ
ィルムは、フィルム生産時に、離ロール性が悪くなり皺
が入ったり、フィルムを巻き取り状態で運送や保存した
場合、重なり合った基材面とエチレン系共重合体樹脂が
くっつき、フィルムを巻き戻してラミネートプリントに
使用する時に貼り合わせ張力が強くなり、積層フィルム
が伸びたり、破断するなどの問題があった。[0004] However, in order to meet the demand for easy adhesion to the printing surface, the ethylene-based copolymer resin of the heat-sensitive adhesive layer has a high content of functional monomers as much as possible. Is inferior in slipperiness and anti-blocking property. Further, the laminate film obtained by the method, during the production of the film, the roll release property is deteriorated, wrinkles are formed, and when the film is transported or stored in a wound state, the substrate surface and the ethylene-based copolymer resin overlapped. When the film is rewound and used for lamination printing, the bonding tension increases, and there is a problem that the laminated film is stretched or broken.
【0005】メタロセン化合物を触媒とした直鎖状エチ
レン・α−オレフィン共重合体に、エチレン系樹脂を含
有させた樹脂を積層したフィルムを、加熱圧着のみで貼
り合わせてプリントラミネート製品を製造する方法(特
開平7−117197号公報など)もある。しかしなが
ら、直鎖状エチレン・α−オレフィン共重合体にエチレ
ン系樹脂を含有させたものを積層した積層フィルムで
は、プリントラミネート製品の外観(ツブレ)、および
低温での加熱接着強度に劣る。また、この積層フィルム
は、プリントラミネート時の積層フィルムのカット性に
劣る。[0005] A method of manufacturing a printed laminate product by laminating a film obtained by laminating a resin containing an ethylene-based resin on a linear ethylene / α-olefin copolymer using a metallocene compound as a catalyst, only by heating and pressing. (JP-A-7-117197). However, a laminated film formed by laminating a linear ethylene / α-olefin copolymer containing an ethylene-based resin is inferior in appearance (blurring) of a printed laminate product and in heat bonding strength at a low temperature. Further, this laminated film is inferior in the cut property of the laminated film at the time of print lamination.
【0006】また、直鎖状エチレン・α−オレフィン共
重合体単体のみの積層では、プリントラミネート製品の
外観(ツブレ)、および低温加熱接着での接着強度に優
れる利点があるが、押出ラミネート加工時にサージング
現象を起こしフィルム成形ができないという問題があ
る。[0006] Lamination of only a linear ethylene / α-olefin copolymer alone has the advantages of excellent appearance (printing) of a printed laminate product and adhesive strength by low-temperature heat bonding. There is a problem that a surging phenomenon occurs and a film cannot be formed.
【0007】上記押出ラミネート時の加工性を改良する
ために、エチレン系樹脂と直鎖状エチレン・α−オレフ
ィン共重合体を2層溶融共押出ラミネート加工する方法
があるが、熱可塑性樹脂フィルム基材と接着されるエチ
レン系樹脂の密度が0.900g/cm3、またはエチ
レン含有量が95重量%を超過するエチレン系共重合体
樹脂を使用すると、フィルム基材との接着性が悪化し、
カット性、トンネリング性などに問題が起こる可能性が
あり、プリントラミネート用フィルムとして好ましくな
い。In order to improve the processability during the extrusion lamination, there is a method in which an ethylene resin and a linear ethylene / α-olefin copolymer are subjected to two-layer melt coextrusion lamination. When an ethylene-based copolymer resin having a density of 0.900 g / cm 3 or an ethylene content exceeding 95% by weight is used, the adhesiveness to a film substrate deteriorates,
There is a possibility that a problem may occur in cutting property, tunneling property and the like, which is not preferable as a film for print lamination.
【0008】[0008]
【発明が解決しようとする課題】本発明は、上記の問題
点を改良すべくなされたものである。すなわち、 1)プリントラミネート時に溶剤臭が発生することな
く、溶剤除去、回収装置を必要とせず、硬化剤のポット
ライフを考慮する必要もない、 2)フィルム生産時の皺、プリントラミネート時の積層
フィルムの伸び、破断がない、 3)押出ラミネート加工時のサージング現象を押え、安
定したフィルム成形ができる、 4)プリントラミネート時、低温で加熱接着でき、プリ
ントラミネート製品の印刷インクの変色がなく、かつ、
カールもない、 5)印刷紙との接着強度に優れる、 6)プリントラミネート時の積層フィルムのカット性に
優れる、 7)熱可塑性樹脂フィルム基材との接着性に優れる、 プリントラミネート用積層フィルムを提供することを課
題とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. That is, 1) no solvent odor is generated at the time of print lamination, no solvent removal and recovery device is required, and there is no need to consider the pot life of the curing agent. 2) wrinkles during film production, lamination during print lamination. There is no elongation or breakage of the film. 3) It suppresses the surging phenomenon at the time of extrusion lamination, and can form a stable film. 4) At the time of print lamination, it can be heated and bonded at a low temperature. And,
No curl, 5) Excellent adhesive strength to printing paper, 6) Excellent cutability of laminated film during print lamination, 7) Excellent adhesiveness to thermoplastic resin film substrate, Printed laminate film The task is to provide.
【0009】[0009]
【課題を解決するための手段】本発明者らは、上記課題
を解決すべく鋭意検討した結果、熱可塑性樹脂フィルム
基材の片面に、特定のエチレン系共重合体樹脂を積層
し、その上に特定のエチレン系樹脂を積層し、さらにそ
の上に特定の直鎖状エチレン・α−オレフィン共重合体
樹脂を印刷体の印刷面に接するように熱接着積層するこ
とにより、印刷体の印刷面と低温でプリントラミネーシ
ョンが可能であり、プリントラミネート製品の印刷イン
クの変色、カールが防止でき、プリントラミネート時の
積層フィルムのカット性が改良され、かつ、押出ラミネ
ート加工時のサージング現象が防止され、安定したフィ
ルム成形ができることを見出し、本発明を完成した。Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have laminated a specific ethylene copolymer resin on one side of a thermoplastic resin film base material, A specific ethylene-based resin is laminated on the printed material, and a specific linear ethylene / α-olefin copolymer resin is further thermally bonded to the printed surface of the printed material so as to be in contact with the printed surface of the printed material. It is possible to print lamination at low temperature, prevent discoloration and curling of printing ink of print laminate product, improve cutability of laminated film at print lamination, and prevent surging phenomenon at extrusion lamination process, The inventors have found that stable film forming can be performed, and have completed the present invention.
【0010】すなわち、本発明の第1の発明によれば、
熱可塑性樹脂フィルム基材の片面に、(A1)樹脂層が
接し、その上に(B1)樹脂層、さらにその上に(C)
樹脂層が積層されてなるプリントラミネート用積層フィ
ルムが提供される。 (A1)樹脂:エチレン含有量が65〜95重量%、M
FR(190℃、2.16kg荷重)が1〜100g/
10分である高圧ラジカル重合法で得られるエチレン系
共重合体樹脂。 (B1)樹脂:密度が0.910〜0.960g/cm
3、MFR(190℃、2.16kg荷重)が1〜10
0g/10分の、高圧法低密度ポリエチレン、直鎖状エ
チレン・α−オレフィン共重合体および低圧法高密度ポ
リエチレンから選ばれる1種以上のエチレン系樹脂。 (C)樹脂:エチレンと炭素数が3〜12のα−オレフ
ィンとを共重合して得た、密度が0.870〜0.91
0g/cm3、MFR(190℃、2.16kg荷重)
が1〜100g/10分である直鎖状エチレン・α−オ
レフィン共重合体樹脂。That is, according to the first aspect of the present invention,
The resin layer (A1) is in contact with one surface of the thermoplastic resin film base material, the (B1) resin layer is further formed thereon, and the (C) is further formed thereon.
A laminated film for print lamination in which a resin layer is laminated is provided. (A1) resin: ethylene content of 65 to 95% by weight, M
FR (190 ° C., 2.16 kg load) is 1 to 100 g /
An ethylene copolymer resin obtained by a high-pressure radical polymerization method for 10 minutes. (B1) Resin: 0.910 to 0.960 g / cm in density
3 , MFR (190 ° C, 2.16 kg load) is 1 to 10
0 g / 10 min, at least one ethylene resin selected from high-pressure low-density polyethylene, linear ethylene / α-olefin copolymer and low-pressure high-density polyethylene. (C) Resin: Density of 0.870 to 0.91 obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms.
0 g / cm 3 , MFR (190 ° C., 2.16 kg load)
Is a linear ethylene / α-olefin copolymer resin having a molecular weight of 1 to 100 g / 10 minutes.
【0011】また、本発明の第2の発明によれば、熱可
塑性樹脂フィルム基材の片面に、(A2)樹脂層が接
し、その上に(B2)樹脂層、さらにその上に(C)樹
脂層が積層されてなるプリントラミネート用積層フィル
ムが提供される。 (A2)樹脂:密度が0.900g/cm3以下、MF
R(190℃、2.16kg荷重)が1〜100g/1
0分であるエチレンと炭素数が3〜20のα−オレフィ
ンとの直鎖状エチレン系共重合体樹脂。 (B2)樹脂:密度が0.910〜0.960g/cm
3、MFR(190℃、2.16kg荷重)が1〜10
0g/10分の高圧法低密度ポリエチレンを含有する1
種以上のエチレン系樹脂。 (C)樹脂:エチレンと炭素数が3〜12のα−オレフ
ィンとを共重合して得た、密度が0.870〜0.91
0g/cm3、MFR(190℃、2.16kg荷重)
が1〜100g/10分である直鎖状エチレン・α−オ
レフィン共重合体樹脂。Further, according to the second aspect of the present invention, the resin layer (A2) is in contact with one surface of the thermoplastic resin film substrate, the resin layer (B2) is further formed thereon, and the resin layer (C) is further formed thereon. A laminated film for print lamination in which a resin layer is laminated is provided. (A2) resin: density: 0.900 g / cm 3 or less, MF
R (190 ° C., 2.16 kg load) is 1 to 100 g / 1
A linear ethylene copolymer resin of ethylene for 0 minutes and an α-olefin having 3 to 20 carbon atoms. (B2) Resin: density of 0.910 to 0.960 g / cm
3 , MFR (190 ° C, 2.16 kg load) is 1 to 10
1 containing 0 g / 10 min high pressure method low density polyethylene
More than one kind of ethylene resin. (C) Resin: Density of 0.870 to 0.91 obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms.
0 g / cm 3 , MFR (190 ° C., 2.16 kg load)
Is a linear ethylene / α-olefin copolymer resin having a molecular weight of 1 to 100 g / 10 minutes.
【0012】さらに、本発明の第3の発明によれば、第
1または第2の発明において、(C)樹脂である直鎖状
エチレン・α−オレフィン共重合体樹脂が、温度上昇溶
離分別(TREF)において80℃以下における溶出量
が共重合体全量に対して90重量%以上のものであるプ
リントラミネート用積層フィルムが提供される。Further, according to the third aspect of the present invention, in the first or second aspect, the linear ethylene / α-olefin copolymer resin as the resin (C) is separated by temperature-elution elution fractionation ( The present invention provides a laminate film for print lamination, in which the amount of the resin (TREF) at 80 ° C. or lower is 90% by weight or more based on the total amount of the copolymer.
【0013】さらに、本発明の第4の発明によれば、第
1ないし第3の発明において、(C)樹脂である直鎖状
エチレン・α−オレフィン共重合体樹脂が、重合触媒と
してメタロセン化合物を用いて重合されたものであるプ
リントラミネート用積層フィルムが提供される。Further, according to the fourth invention of the present invention, in the first to third inventions, the linear ethylene / α-olefin copolymer resin (C) is a metallocene compound as a polymerization catalyst. The present invention provides a laminated film for print lamination, which is obtained by polymerizing the above.
【0014】[0014]
【発明の実施の形態】1.熱可塑性樹脂フィルム基材 本発明のプリントラミネーション用積層フィルムに用い
られる熱可塑性樹脂フィルム基材としては、ポリプロピ
レン、ポリエチレン、ポリエチレンテレフタレート、ポ
リ塩化ビニル、ポリスチレンなどの熱可塑性樹脂の無延
伸または延伸フィルムが用いられる。基材層の厚みは、
好ましくは6〜100μm、より好ましくは7〜40μ
mである。熱可塑性樹脂フィルム基材の中には、滑剤、
アンチブッロキング剤、安定剤、酸化防止剤、帯電防止
剤、防曇剤、着色剤、その他の添加剤が配合されていて
もよい。BEST MODE FOR CARRYING OUT THE INVENTION Thermoplastic resin film substrate As the thermoplastic resin film substrate used in the laminated film for print lamination of the present invention, a non-stretched or stretched film of a thermoplastic resin such as polypropylene, polyethylene, polyethylene terephthalate, polyvinyl chloride, and polystyrene. Used. The thickness of the substrate layer is
Preferably 6 to 100 μm, more preferably 7 to 40 μm
m. Lubricant,
An antiblocking agent, a stabilizer, an antioxidant, an antistatic agent, an antifogging agent, a colorant, and other additives may be blended.
【0015】2.接着樹脂層 本発明の上記熱可塑性樹脂フィルム基材の片面に積層さ
れる樹脂層は、下記の(A)エチレン系共重合体樹脂層
((A1)樹脂層または(A2)樹脂層)、その上に積
層される(B)エチレン系樹脂層((B1)樹脂層また
は(B2)樹脂層)、さらにその上に積層される(C)
直鎖状エチレン・α−オレフィン共重合体樹脂層であ
る。2. Adhesive Resin Layer The resin layer laminated on one surface of the thermoplastic resin film substrate of the present invention includes the following (A) an ethylene copolymer resin layer ((A1) resin layer or (A2) resin layer), (B) an ethylene resin layer ((B1) resin layer or (B2) resin layer) laminated thereon, and further laminated thereon (C)
It is a linear ethylene / α-olefin copolymer resin layer.
【0016】(A)エチレン系共重合体樹脂 本発明の(A)樹脂層に用いるエチレン系共重合体樹脂
は、エチレン含有量が65〜95重量%、かつMFR
(190℃、2.16kg荷重)が1〜100g/10
分である高圧ラジカル重合法で得られるエチレン系共重
合体樹脂((A1)樹脂)または、密度が0.900g
/cm3以下、かつMFR(190℃、2.16kg荷
重)が1〜100g/10分であるエチレンと炭素数が
3〜20のα−オレフィンとの直鎖状エチレン系共重合
体樹脂((A2)樹脂)である。(A) Ethylene copolymer resin The ethylene copolymer resin used in the resin layer (A) of the present invention has an ethylene content of 65 to 95% by weight and an MFR of
(190 ° C., 2.16 kg load) 1 to 100 g / 10
Copolymer resin ((A1) resin) obtained by a high-pressure radical polymerization method or a resin having a density of 0.900 g
/ Cm 3 or less and MFR (190 ° C., 2.16 kg load) of 1 to 100 g / 10 min and a linear ethylene copolymer resin of ethylene and an α-olefin having 3 to 20 carbon atoms (( A2) Resin).
【0017】(A1)樹脂のエチレン含有量は、65〜
95重量%、好ましくは70〜90重量%である。エチ
レン含有量が65重量%未満では、押出ラミネート時の
ネックインが大きくなったり、熱劣化などを生じやすく
加工が困難になる。一方、エチレン含有量が95重量%
を超過すると、基材との接着強度が悪化する。(A1) The ethylene content of the resin is 65-65.
It is 95% by weight, preferably 70-90% by weight. If the ethylene content is less than 65% by weight, neck-in at the time of extrusion lamination becomes large, thermal deterioration or the like is apt to occur, and processing becomes difficult. On the other hand, the ethylene content is 95% by weight.
If the ratio exceeds the above range, the adhesive strength to the base material will deteriorate.
【0018】(A2)樹脂の密度は、0.900g/c
m3以下である。密度が0.900g/cm3を超過す
ると基材との接着強度が悪化する。(A2) The density of the resin is 0.900 g / c
m 3 is equal to or less than. When the density exceeds 0.900 g / cm 3 , the adhesive strength to the substrate deteriorates.
【0019】また、(A1)樹脂および(A2)樹脂の
MFR(190℃、2.16kg荷重)は、ともに1〜
100g/10分、好ましくは2〜80g/10分であ
る。MFRが1g/10分未満であると、溶融粘度が高
すぎるため、押出ラミネート加工時の薄肉加工性が不足
する。一方、MFRが100g/10分を超えると、溶
融粘度が低すぎるため、ネックインが大きくなり成形性
に劣る。The MFR (190 ° C., 2.16 kg load) of the resin (A1) and the resin (A2) are both 1 to 1.
100 g / 10 min, preferably 2 to 80 g / 10 min. If the MFR is less than 1 g / 10 minutes, the melt viscosity is too high, so that the thin-wall workability during extrusion lamination is insufficient. On the other hand, when the MFR exceeds 100 g / 10 minutes, the melt viscosity is too low, so that the neck-in becomes large and the moldability is poor.
【0020】本発明で用いる(A1)樹脂としては、下
記の(I)を挙げることができる。また、本発明で用い
る(A2)樹脂としては、下記の(II)を挙げること
ができる。Examples of the resin (A1) used in the present invention include the following (I). Further, as the (A2) resin used in the present invention, the following (II) can be exemplified.
【0021】(I)エチレンと共重合可能な単量体、例
えば酢酸ビニル、アクリル酸、アクリル酸メチル、アク
リル酸エチル、メタクリル酸メチルなどと共重合して得
られる共重合体樹脂。具体的には、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
−アクリル酸メチル共重合体、エチレン−アクリル酸エ
チル共重合体などが例示され、これらは単独、または2
種以上を混合して用いてもよい。 (II)エチレンと炭素数が3〜20のα−オレフィン
とを共重合して得られる直鎖状エチレン・α−オレフィ
ン共重合体。(I) A copolymer resin obtained by copolymerizing with a monomer copolymerizable with ethylene, for example, vinyl acetate, acrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate and the like. Specifically, an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, an ethylene-methyl acrylate copolymer, an ethylene-ethyl acrylate copolymer, and the like are exemplified.
Mixtures of more than one species may be used. (II) A linear ethylene / α-olefin copolymer obtained by copolymerizing ethylene and an α-olefin having 3 to 20 carbon atoms.
【0022】さらに、上記(A1)樹脂および(A2)
樹脂には、滑剤、アンチブッロキング剤、安定剤、帯電
防止剤、防曇剤、着色剤、低分子量ポリマー、その他各
種添加剤を必要に応じて添加してもよい。Further, the resin (A1) and the resin (A2)
Lubricants, antiblocking agents, stabilizers, antistatic agents, antifogging agents, colorants, low molecular weight polymers, and other various additives may be added to the resin as needed.
【0023】(B)エチレン系樹脂 本発明の(B)樹脂層として用いるエチレン系樹脂
((B1)樹脂または(B2)樹脂)は、密度(JIS
K6922)が、0.910〜0.960g/c
m3、好ましくは0.910〜0.950g/cm3で
ある。密度が、0.910g/cm3未満では、プリン
トラミネート時のフィルムのカット性が悪化し、一方、
密度が0.960g/cm3を超えると(A)、
(B)、(C)樹脂層間の接着性およびプリントラミネ
ート製品の外観(ツブレ)が悪化し、カール性にも劣
る。(B) Ethylene Resin The ethylene resin ((B1) resin or (B2) resin) used for the resin layer (B) of the present invention has a density (JIS).
K6922) is 0.910 to 0.960 g / c.
m 3 , preferably 0.910 to 0.950 g / cm 3 . When the density is less than 0.910 g / cm 3 , the cut property of the film at the time of print lamination deteriorates,
When the density exceeds 0.960 g / cm 3 (A),
(B), (C) The adhesiveness between the resin layers and the appearance (blurring) of the printed laminate product are deteriorated, and the curl property is also poor.
【0024】また、本発明の(B)樹脂層として用いる
エチレン系樹脂は、MFR(JISK6921)が、1
〜100g/10分、好ましくは2〜80g/10分で
ある。MFRが1g/10分未満であると、溶融粘度が
高すぎるため押出ラミネート加工時の延展性が不足す
る。一方、MFRが100g/10分を超過すると、溶
融粘度が低すぎるため、ネックインが大きくなり成形性
に劣る。The ethylene resin used as the resin layer (B) of the present invention has an MFR (JIS K6921) of 1
-100 g / 10 min, preferably 2-80 g / 10 min. If the MFR is less than 1 g / 10 minutes, the melt viscosity is too high and the extensibility during extrusion lamination processing is insufficient. On the other hand, if the MFR exceeds 100 g / 10 minutes, the melt viscosity is too low, so that the neck-in increases and the moldability is poor.
【0025】本発明で用いる(B1)樹脂としては、下
記の(III)〜(VII)が挙げられる。また、本発
明で用いる(B2)樹脂としては、下記の(III)、
(V)および(VII)が挙げられる。 (III)高圧法低密度ポリエチレン。 (IV)低圧法高密度ポリエチレン。 (V)低圧法高密度ポリエチレンに高圧法低密度ポリエ
チレンを1重量%以上混合した樹脂組成物。 (VI)エチレンと炭素数が3〜12のα−オレフィン
とを共重合して得られる直鎖状エチレン・α−オレフィ
ン共重合体。 (VII)エチレンと炭素数が3〜12のα−オレフィ
ンとを共重合して得られる直鎖状エチレン・α−オレフ
ィン共重合体に高圧法低密度ポリエチレンを1重量%以
上混合した樹脂組成物。The resin (B1) used in the present invention includes the following (III) to (VII). The (B2) resin used in the present invention includes the following (III):
(V) and (VII). (III) High pressure method low density polyethylene. (IV) Low pressure high density polyethylene. (V) A resin composition in which low-pressure high-density polyethylene is mixed with 1% by weight or more of high-pressure low-density polyethylene. (VI) A linear ethylene / α-olefin copolymer obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms. (VII) A resin composition obtained by mixing 1% by weight or more of a high-pressure low-density polyethylene with a linear ethylene / α-olefin copolymer obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms. .
【0026】さらに、本発明の(B1)樹脂および(B
2)樹脂には、滑剤、アンチブッロキング剤、安定剤、
帯電防止剤、防曇剤、着色剤、低分子量ポリマー、その
他各種添加剤を必要に応じて添加してもよい。Further, the resin (B1) of the present invention and the resin (B1)
2) In the resin, lubricant, anti-blocking agent, stabilizer,
Antistatic agents, antifogging agents, colorants, low molecular weight polymers, and other various additives may be added as necessary.
【0027】上記より、本発明で用いる(A)エチレン
系共重合体樹脂および(B)エチレン系樹脂の組み合わ
せによれば、下記(C)樹脂である直鎖状エチレン・α
−オレフィン共重合体との共押出ラミネート加工時に、
サージング現象を起こすことなく、ラミネート可能であ
る。(A)/(B)樹脂が、上記以外の組み合わせ、す
なわち(II)/(IV)および(II)/(VI)
は、(C)樹脂である直鎖状エチレン・α−オレフィン
共重合体との共押出ラミネート加工時に、サージング現
象を起こし、フィルム成形が困難となる。As described above, according to the combination of the ethylene copolymer resin (A) and the ethylene resin (B) used in the present invention, the following resin (C), a linear ethylene.α
-At the time of co-extrusion lamination with an olefin copolymer,
Lamination is possible without causing a surging phenomenon. (A) / (B) resin is a combination other than the above, that is, (II) / (IV) and (II) / (VI)
Causes a surging phenomenon during coextrusion lamination with a linear ethylene / α-olefin copolymer (C) resin, making film formation difficult.
【0028】(C)直鎖状エチレン・α−オレフィン共
重合体 本発明の(C)樹脂層に用いる直鎖状エチレン・α−オ
レフィン共重合体は、エチレンと炭素数が3〜12のα
−オレフィンとを共重合して得られる共重合体である。
具体的には、エチレンと1種類の炭素数3〜12のα−
オレフィンとを共重合して得られる2元共重合体、およ
びエチレンと2種類の炭素数3〜12のα−オレフィン
とを共重合して得られる3元共重合体が挙げられる。炭
素数が3〜12のα−オレフィンとしては、プロピレ
ン、1−ブテン、1−ヘキセン、1−ヘプテン、1−オ
クテン、1−デセン、1−ドデセンなどが挙げられ、単
独で用いても2種以上用いてもよい。(C) Linear Ethylene / α-Olefin Copolymer The linear ethylene / α-olefin copolymer used in the resin layer (C) of the present invention comprises ethylene and α-olefin having 3 to 12 carbon atoms.
-A copolymer obtained by copolymerizing an olefin.
Specifically, ethylene and one kind of α-
Binary copolymers obtained by copolymerizing olefins, and terpolymers obtained by copolymerizing ethylene with two kinds of α-olefins having 3 to 12 carbon atoms are exemplified. Examples of the α-olefin having 3 to 12 carbon atoms include propylene, 1-butene, 1-hexene, 1-heptene, 1-octene, 1-decene, and 1-dodecene. The above may be used.
【0029】該(C)直鎖状エチレン・α−オレフィン
共重合体は、密度(JIS K6922)が0.870
〜0.910g/cm3、好ましくは0.875〜0.9
05g/cm3、MFR(JIS K6921)が1〜
100g/10分、好ましくは2〜80g/10分であ
る。The linear ethylene / α-olefin copolymer (C) has a density (JIS K6922) of 0.870.
0.909 g / cm 3 , preferably 0.875-0.9
05 g / cm 3 , MFR (JIS K6921) 1
100 g / 10 min, preferably 2 to 80 g / 10 min.
【0030】該直鎖状エチレン・α−オレフィン共重合
体は、密度が0.870g/cm3未満では、ブッロキ
ング性が悪くなり、プリントラミネート時の積層フィル
ムの伸びや破断が起きる可能性があり、積層フィルムの
カット性にも劣る。一方、密度が0.910g/cm3
を超えると、印刷体の印刷面との接着性、およびプリン
トラミネート製品の外観(ツブレ)に劣る。また、MF
Rが1g/10分未満のものは、溶融粘度が高すぎるた
め押出ラミネート加工時の延展性が不足する。一方、1
00g/10分を超過するものは、溶融粘度が低すぎる
ためネックインが大きくなり成形性に劣る。When the linear ethylene / α-olefin copolymer has a density of less than 0.870 g / cm 3 , the blocking property is deteriorated, and there is a possibility that the laminated film may elongate or break during print lamination. Also, the cut property of the laminated film is poor. On the other hand, the density is 0.910 g / cm 3
When the ratio exceeds the above, the adhesiveness to the printing surface of the printed body and the appearance (blurring) of the printed laminate product are inferior. Also, MF
If the R is less than 1 g / 10 minutes, the melt viscosity is too high and the extensibility at the time of extrusion lamination is insufficient. Meanwhile, 1
If it exceeds 00 g / 10 minutes, the melt-in viscosity is too low, so that the neck-in becomes large and the moldability is poor.
【0031】本発明で用いる(C)直鎖状エチレン・α
−オレフィン共重合体は、公知のチタン系触媒またはメ
タロセン触媒を用いて重合して製造することができる
が、重合触媒としてメタロセン化合物を用いて高圧イオ
ン重合、気相重合、溶液重合により製造した共重合体を
用いることが好ましく、特に下記の物性を有するメタロ
セン触媒による共重合体が好ましい。The (C) linear ethylene α used in the present invention
-Olefin copolymers can be produced by polymerization using a known titanium-based catalyst or metallocene catalyst, but copolymers produced by high-pressure ionic polymerization, gas-phase polymerization, and solution polymerization using a metallocene compound as a polymerization catalyst. It is preferable to use a polymer, and particularly preferable is a copolymer using a metallocene catalyst having the following physical properties.
【0032】すなわち、該直鎖状エチレン・α−オレフ
ィン共重合体の温度上昇溶離分別(TREF)による溶
出量は、80℃における溶出量が共重合体全量に対して
90重量%以上であることが好ましい。That is, the amount of the linear ethylene / α-olefin copolymer eluted by temperature rise elution fractionation (TREF) is at least 90% by weight at 80 ° C. based on the total amount of the copolymer. Is preferred.
【0033】なお、温度上昇溶離分別(Tempera
ture Rising Elution Fract
ionation:TREF)による測定は、「Jou
rnal of Applied Polymer S
cience,Vol 26, 4217−4231.
(1981)」および「高分子論文集 2P1C09
(1985年)」に記載されている原理に基づき、以下
のようにして行われる。まず、測定の対象とするポリマ
ーを溶媒中で完全に溶解させる。その後、冷却して不活
性担体表面に薄いポリマー層を形成させる。かかるポリ
マー層は結晶しやすいものが内側(不活性担体表面に近
い側)に、結晶しにくいものが外側に形成されてなるも
のである。次に温度を連続または段階的に上昇させる
と、低温度段階では対象のポリマー組成中の非晶部分、
すなわちポリマーの持つ短鎖分岐の分岐度の多いものか
ら溶出し、温度が上昇するとともに徐々に分岐度の少な
いものが溶出し、最終的に分岐のない直鎖状の部分が溶
出し測定は終了する。かかる温度での溶出成分の濃度を
検出し、その溶出量と溶出温度によって描かれるグラフ
によってポリマーの組成分布を見ることができるもので
ある。The temperature rise elution fractionation (Tempera)
true Rising Elution Fract
ionation: TREF) is described in “Jou
rnal of Applied Polymer S
science, Vol 26, 4217-4231.
(1981) "and" Polymer Paper Collection 2P1C09 "
(1985) "based on the principle described in the following. First, a polymer to be measured is completely dissolved in a solvent. Thereafter, cooling is performed to form a thin polymer layer on the surface of the inert carrier. Such a polymer layer is formed by forming an easily crystallizable material on the inner side (the side closer to the surface of the inert carrier) and a hardly crystallizable material on the outer side. Next, when the temperature is continuously or stepwise increased, an amorphous portion in the polymer composition of interest in a low temperature stage,
In other words, the polymer elutes from the polymer with the short-chain branching with a high degree of branching, and as the temperature rises, the polymer with a low degree of branching elutes, and finally the linear portion without branching elutes, and the measurement is completed. I do. The concentration of the eluted component at such a temperature is detected, and the composition distribution of the polymer can be seen from a graph drawn by the amount of the eluted and the elution temperature.
【0034】該直鎖状エチレン・α−オレフィン共重合
体は、無水マレイン酸、スチレンなどをグラフト重合さ
せたものも使用できる。As the linear ethylene / α-olefin copolymer, those obtained by graft polymerization of maleic anhydride, styrene or the like can be used.
【0035】また、該直鎖状エチレン・α−オレフィン
共重合体には、滑剤、アンチブッロキング剤、安定剤、
帯電防止剤、防曇剤、着色剤、低分子量ポリマー、その
他各種添加剤を必要に応じて添加してもよいが、高圧法
低密度ポリエチレン、エチレン含有量が95重量%を超
過するエチレン系共重合体を混合するとプリントラミネ
ート製品の外観(ツブレ)、および印刷面との接着性が
悪化する場合がある。The linear ethylene / α-olefin copolymer includes a lubricant, an antiblocking agent, a stabilizer,
Antistatic agents, antifogging agents, colorants, low molecular weight polymers, and other various additives may be added as necessary, but high-pressure low-density polyethylene, ethylene-based copolymers having an ethylene content exceeding 95% by weight, When the polymer is mixed, the appearance (blurring) of the printed laminate product and the adhesiveness to the printed surface may be deteriorated.
【0036】3.接着樹脂層の厚み 上記接着樹脂層の厚みは、(A)樹脂層、(B)樹脂層
および(C)樹脂層を併せて、好ましくは6μm以上、
より好ましくは7〜80μmで、特に(A)樹脂層、
(B)樹脂層および(C)樹脂層の厚み比率の制限はな
い。3. Thickness of Adhesive Resin Layer The thickness of the above-mentioned adhesive resin layer is preferably 6 μm or more in total of (A) resin layer, (B) resin layer and (C) resin layer.
More preferably 7 to 80 μm, particularly (A) resin layer,
There is no limitation on the thickness ratio of (B) resin layer and (C) resin layer.
【0037】4.プリントラミネート用積層フィルムの
製造方法 本発明のプリントラミネート用積層フィルムの製造方法
には、タンデム押出ラミネート法、サンドイッチ押出ラ
ミネート法、ドライラミネート法、3層溶融共押出ラミ
ネート法などがあるが、高速薄肉成形性に優れた3層溶
融共押出ラミネート法が好ましい。この場合の加工温度
は、好ましくは150〜300℃、より好ましくは20
0〜280℃である。また、熱可塑性樹脂フィルム基材
と(A)樹脂層間を、オゾン処理することが好ましい。4. Production method of laminated film for print lamination The production method of the laminated film for print lamination of the present invention includes a tandem extrusion lamination method, a sandwich extrusion lamination method, a dry lamination method, and a three-layer melt coextrusion lamination method. A three-layer melt coextrusion laminating method excellent in moldability is preferred. The processing temperature in this case is preferably 150 to 300 ° C., more preferably 20 to 300 ° C.
0-280 ° C. In addition, it is preferable to perform an ozone treatment between the thermoplastic resin film base and the resin interlayer (A).
【0038】(A)樹脂、(B)樹脂および(C)樹脂
を3層溶融共押出ラミネート加工する際には、熱可塑性
樹脂フィルム基材に予めコロナ処理のような表面処理を
行っておくか、アンカーコート材を塗布しておくことが
好ましい。When the three-layer melt-coextrusion laminating of the resin (A), the resin (B) and the resin (C) is performed, a surface treatment such as a corona treatment is previously performed on the thermoplastic resin film base material. It is preferable to apply an anchor coat material.
【0039】また、上記で得られたプリントラミネート
用積層フィルムは、シート状物の印刷面との接着性を良
好にするため、(C)樹脂層面をコロナ処理、オゾン処
理などの酸化処理を行うことが好ましい。特にコロナ処
理が最も簡便で効果がある。Further, the laminated film for print lamination obtained above is subjected to (C) an oxidation treatment such as a corona treatment or an ozone treatment on the resin layer surface in order to improve the adhesion to the printed surface of the sheet. Is preferred. In particular, corona treatment is the simplest and most effective.
【0040】本発明の加熱圧着プリントラミネートに用
いる積層フィルムの接着層である(C)樹脂は、融点
(DSC法)が低く、エチレン系樹脂を混合していない
ために、印刷体の印刷面と低温でプリントラミネーショ
ンができ、プリントラミネート製品の印刷紙との接着強
度が強くなり、印刷インクの変色、カール防止ができ
る。また、押出ラミネート加工においては、(A)樹脂
層、(B)樹脂層および(C)樹脂層を共押出しするこ
とにより、押出ラミネート加工時のサージング現象を防
止し、安定したフィルム成形が可能であり、熱可塑性樹
脂フィルム基材との接着強度が強くなり、プリントラミ
ネート時の積層フィルムのカット性が改良される。The resin (C), which is the adhesive layer of the laminated film used in the thermocompression printing laminate of the present invention, has a low melting point (DSC method) and does not contain an ethylene-based resin. Print lamination can be performed at a low temperature, the adhesive strength of the print laminate product to the printing paper can be increased, and discoloration and curling of the printing ink can be prevented. In the extrusion lamination process, by co-extruding the resin layer (A), the resin layer (B) and the resin layer (C), a surging phenomenon at the time of the extrusion lamination process is prevented, and stable film forming is possible. In addition, the adhesive strength to the thermoplastic resin film substrate is increased, and the cut property of the laminated film during print lamination is improved.
【0041】[0041]
【実施例】以下に、本発明を実施例によって具体的に説
明するが、本発明はこれらの実施例によって限定される
ものではない。なお、実施例における押出ラミネート加
工性、積層フィルムの特性、プリントラミネート製品の
特性評価方法および実施例で使用した樹脂は以下の通り
である。EXAMPLES Hereinafter, the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples. The extrusion laminating processability, the characteristics of the laminated film, the method of evaluating the characteristics of the printed laminate product, and the resins used in the examples are as follows.
【0042】評価方法 1.押出ラミネート加工性 積層樹脂層の厚み(共押出の場合はトータル厚み)が1
5μm(設定値)で、引取速度200m/分にて、Tダ
イから押し出される溶融樹脂のサージング現象(流れ方
向で±5μm以上の厚み変動)の発生の有無を観察し、
下記の評価基準で評価した。 良:サージング現象の発生なし 不良:サージング現象が発生し、押出ラミネート加工が
困難[0042]Evaluation method 1. Extrusion laminating processability The thickness of the laminated resin layer (total thickness in the case of co-extrusion) is 1
At 5 μm (set value), at a take-off speed of 200 m / min,
Surging phenomenon of molten resin extruded from b
Observation of the occurrence of thickness fluctuation of ± 5 μm or more in the
The following evaluation criteria evaluated. Good: No surging phenomenon occurred. Poor: Surging phenomenon occurred and extrusion lamination was not performed.
Difficult
【0043】2.積層フィルムの特性 (1)抗ブロッキング性:幅21cm、長さ29cmの
二軸延伸フィルム面と積層フィルムのコロナ放電処理面
を重ね合わせ、温度が60℃のオーブン中で幅15c
m、長さ20cmにわたって0.05kg/cm2の荷
重を負荷して24時間放置した後、重ね合わせたフィル
ムの剥離面積が10cm2(幅2cm、長さ5cm)に
なるようにカットし、引張試験機で剥離(引張速度50
0mm/分)に要する荷重を測定した。この値が小さい
程、抗ブロッキング性は優れており、下記範囲で×〜◎
と評価した。 剥離荷重(kg/10cm2) 評価 2kg以上(積層フィルムが切断) × 1.5〜2kg未満(積層フィルムが伸びきる) △ 1.0〜1.5kg未満(積層フィルムの伸びが復元) ○ 1.0kg未満 ◎2. Properties of laminated film (1) Anti-blocking property: width 21 cm, length 29 cm
Corona discharge treated surface of biaxially stretched film and laminated film
And the width is 15c in an oven at a temperature of 60 ° C.
m, 0.05 kg / cm over 20 cm length2No load
After applying the weight and leaving it for 24 hours,
10cm peeling area2(Width 2cm, length 5cm)
And peeled off with a tensile tester (tensile speed 50
0 mm / min) was measured. This value is small
About, the anti-blocking property is excellent, in the following range × ~ ◎
Was evaluated.Peeling load (kg / 10cm 2 ) Evaluation 2 kg or more (laminated film is cut) × 1.5 to less than 2 kg (laminated film is fully stretched) △ 1.0 to less than 1.5 kg (elongation of laminated film is restored) ○ Less than 1.0 kg ◎
【0044】(2)基材との接着強度:積層フィルム
を、幅15mm、長さ100mmの試験片に切断し、長
さ50mmを手で剥離した後、島津制作所引張試験機で
180度方向に300mm/分の引張速度で剥離した引
張強度の値を示した。(2) Adhesive strength to substrate: Laminated film was cut into a test piece having a width of 15 mm and a length of 100 mm, and a length of 50 mm was peeled off by hand. Shows the value of tensile strength peeled at a tensile speed of 300 mm / min.
【0045】3.プリントラミネート製品の特性 (1)光沢度およびツブレ:プリントラミネート製品の
印刷部の光沢度(20度)を、スガ試験機社製のUGV
−5DP(商品名)で測定した値を示し、また、ツブレ
性(印刷紙と積層樹脂との密着性)は、外観のツブレ状
態を目視で観察し、下記の評価基準で評価した。 外観のツブレ状態 評価 残存空気が全く無く、印刷色が鮮明 ○ 印刷色上に空気がスジ状や斑点として残存 △ 印刷色上に空気が帯状に残存し、印刷色が不鮮明 ×3. Characteristics of Printed Laminate Products (1) Gloss and fog:
The glossiness (20 degrees) of the printing part was measured using UGV manufactured by Suga Test Instruments Co., Ltd.
Indicates the value measured with -5DP (trade name).
Properties (adhesion between printing paper and laminated resin) are as smooth
The condition was visually observed and evaluated according to the following evaluation criteria.External appearance Evaluation There is no residual air and the print color is clear ○ Air remains as streaks or spots on the print color △ Air remains in a band on the print color and the print color is unclear ×
【0046】(2)接着強度:プリントラミネート製品
を、幅25mm、長さ100mmの試験片に切断し、長
さ方向50mmを手で剥離した後、島津製作所引張試験
機で180度方向に300mm/分の引張速度で剥離し
た引張強度の値を示した。(2) Adhesive strength: A printed laminate product was cut into a test piece having a width of 25 mm and a length of 100 mm, and was peeled by hand in a length direction of 50 mm. The value of the tensile strength peeled at a tensile speed of 1 minute was shown.
【0047】(3)トンネリング性:プリントラミネー
ト製品の印刷紙の非貼合面にマイクロシリンジにて軽油
100μlを滴下し、温度23℃、湿度50%の雰囲気
下に放置し、24時間後の積層フィルム面の変化を観察
し、下記の評価基準で評価した。 トンネリング性 評価 接着強度、外観とも全く問題なし ◎ 接着強度が僅かに低下しているが外観変化なし(使用に耐える程度) ○ 僅かにブツブツが発生 △ 明らかにトンネリング発生 ×(3) Tunneling property: Print laminating
Light oil with a micro syringe on the non-bonded surface of the printed paper
100 µl is dropped and the atmosphere is at 23 ° C and 50% humidity
Leave it on the bottom and observe the change of the laminated film surface after 24 hours
And evaluated according to the following evaluation criteria.Tunneling properties Evaluation There is no problem in the adhesive strength and appearance. ◎ The adhesive strength is slightly reduced, but there is no change in appearance (to the extent that it can be used). ○ Slightly bumpy. △ Clear tunneling.
【0048】(4)エルメンドルフ引裂強度:プリント
ラミネート用フィルムをプラスチックフィルムおよびシ
ートの引裂試験法(JIS K7128 B法 エルメ
ンドルフ引裂法)で測定した。(4) Elmendorf tear strength: The film for print lamination was measured by a tear test method (JIS K7128 B method Elmendorf tear method) for plastic films and sheets.
【0049】押出ラミネート使用樹脂 (1)エチレン・酢酸ビニル共重合体(EVA) 日本ポリケム(株)製 ノバテックLV570(商品
名)、MFR:15g/10分、酢酸ビニル(VA)含
有量:20重量% (2)エチレン・エチルアクリレート共重合体(EE
A) 三井・デュポンポリケミカル(株)製 エバフレックス
EEA A707(商品名)、MFR:25g/10
分、エチルアクリレート(EA)含有量:17重量% (3)高圧法低密度ポリエチレン(LDPE) 日本ポリケム(株)製 ノバテックLC701(商品
名)、MFR:14g/10分、密度:0.919g/
cm3、エチレン含有量:100重量%[0049]Extrusion laminating resin (1) Ethylene / vinyl acetate copolymer (EVA) Novatec LV570 (product of Nippon Polychem Co., Ltd.)
Name), MFR: 15 g / 10 minutes, including vinyl acetate (VA)
Weight: 20% by weight (2) Ethylene / ethyl acrylate copolymer (EE
A) EVA Flex manufactured by DuPont Mitsui Polychemicals, Inc.
EEA A707 (trade name), MFR: 25 g / 10
Ethyl acrylate (EA) content: 17% by weight (3) High pressure method low density polyethylene (LDPE) Novatec LC701 (product of Nippon Polychem Co., Ltd.)
Name), MFR: 14 g / 10 min, density: 0.919 g /
cm3, Ethylene content: 100% by weight
【0050】(4)エチレン・1−ヘキセン共重合体
(LLDPE−1) 日本ポリケム(株)製 カーネルKS560(商品
名)、MFR:16.5g/10分、密度:0.898
g/cm3、温度上昇溶離分別(TREF)の80℃以
下における溶出量:100重量% (5)エチレン・1−ヘキセン共重合体(LLDPE−
2) 日本ポリケム(株)製 カーネルKJ6400(商品
名)、MFR:30g/10分、密度:0.880g/
cm3、温度上昇溶離分別(TREF)の80℃以下に
おける溶出量:100重量% (6)エチレン・1−ブテン共重合体(LLDPE−
3) 日本ポリケム(株)製 ノバテックLL UJ370
(商品名)、MFR:16g/10分、密度:0.92
1g/cm3 (4) Ethylene / 1-hexene copolymer (LLDPE-1) Kernel KS560 (trade name) manufactured by Nippon Polychem Co., Ltd., MFR: 16.5 g / 10 minutes, density: 0.898
g / cm 3 , eluted amount at 80 ° C. or lower in temperature-rise elution fractionation (TREF): 100% by weight (5) Ethylene / 1-hexene copolymer (LLDPE-
2) Kernel KJ6400 (trade name) manufactured by Nippon Polychem Co., Ltd., MFR: 30 g / 10 min, density: 0.880 g /
cm 3 , eluted amount at 80 ° C. or less of temperature rise elution fractionation (TREF): 100% by weight (6) Ethylene / 1-butene copolymer (LLDPE-
3) Novatec LL UJ370 manufactured by Nippon Polychem Co., Ltd.
(Trade name), MFR: 16 g / 10 min, density: 0.92
1 g / cm 3
【0051】実施例1 (1)(A)樹脂を前記ラミネート樹脂のEVA、
(B)樹脂をLDPE、(C)樹脂をLLDPE−1と
して、それぞれを口径が65mmの押出機に装着したT
ダイから、樹脂温度240℃、幅500mm、肉厚が
(A)樹脂層3μm、(B)樹脂層5μm、(C)樹脂
層7μmにて、フィルム状に(A)樹脂層面が基材面と
なるように3層で溶融共押出しした。 (2)次いで、押出ラミネート装置の基材の繰出部より
厚さ15μmの二軸延伸ポリプロピレンフィルム〔二村
化学工業製 LOF2(商品名)〕を繰り出し、この片
面にアンカーコート剤を塗布し、乾燥後塗布面と、Tダ
イからフィルム状に3層で溶融共押出しした(A)樹脂
層の間をオゾン処理し、表面をマット仕上げした冷却ロ
ールと圧縮ゴムロールで圧着ラミネートし、さらに積層
されたフィルムの(C)樹脂層の表面に20W・分/m
2のコロナ放電処理を施し、積層フィルムを得た。その
時の加工性と積層フィルムの評価結果を表1に示す。 (3)次に、得られた積層フィルムのコロナ放電処理面
とオフセット印刷したアート紙をロール温度が70、8
0、100℃、線圧が55.6kg、速度が30m/分
の圧着機で熱圧着し、プリントラミネート製品を得た。 (4)押出ラミネート加工性、積層フィルムの基材と
(A)樹脂層間の接着強度、抗ブロッキング性を表1、
およびプリントラミネート製品の光沢性、印刷したアー
ト紙との接着強度、印刷したアート紙とのトンネリング
性の評価結果を表2に示す。Example 1 (1) (A) The resin was EVA of the laminated resin,
(B) The resin was LDPE, the resin (C) was LLDPE-1, and each was attached to an extruder having a diameter of 65 mm.
From the die, at a resin temperature of 240 ° C., a width of 500 mm, a thickness of (A) a resin layer of 3 μm, a (B) resin layer of 5 μm, and a (C) resin layer of 7 μm. It was melt co-extruded in three layers so as to obtain. (2) Next, a 15-μm-thick biaxially-stretched polypropylene film [LOF2 (trade name) manufactured by Nimura Chemical Industry Co., Ltd.] is fed from the feed-out portion of the base material of the extrusion laminating apparatus, an anchor coating agent is applied to one surface of the film, and dried. An ozone treatment is applied between the coating surface and the resin layer (A) melt-coextruded in three layers from a T-die into a film shape, and the surface is matted and subjected to pressure lamination with a cooling roll and a compression rubber roll. (C) 20 W · min / m on the surface of the resin layer
2 was subjected to corona discharge treatment to obtain a laminated film. Table 1 shows the processability and the evaluation results of the laminated film at that time. (3) Next, the corona discharge treated surface of the obtained laminated film and the art paper subjected to offset printing were rolled at a roll temperature of 70,8.
A thermocompression bonding was performed at 0, 100 ° C., a linear pressure of 55.6 kg and a speed of 30 m / min to obtain a printed laminate product. (4) Extrusion laminating processability, adhesion strength between the base material of the laminated film and (A) resin layer, anti-blocking property are shown in Table 1,
Table 2 shows the evaluation results of the glossiness of the print laminate product, the adhesive strength with the printed art paper, and the tunneling property with the printed art paper.
【0052】実施例2 (1)(A)樹脂を前記ラミネート樹脂のEEAに代
え、樹脂温度を250℃としたこと以外は、実施例1と
同様にして、積層フィルム、プリントラミネート製品を
得た。評価結果を表1および表2に示す。Example 2 (1) A laminated film and a print-laminated product were obtained in the same manner as in Example 1 except that (A) the resin was changed to EEA of the laminated resin and the resin temperature was changed to 250 ° C. . The evaluation results are shown in Tables 1 and 2.
【0053】実施例3 (1)(C)樹脂を前記ラミネート樹脂のLLDPE−
2に代えたこと以外は、実施例1と同様にして、積層フ
ィルム、プリントラミネート製品を得た。評価結果を表
1および表2に示す。Example 3 (1) The resin (C) was used as the LLDPE-
A laminated film and a print-laminated product were obtained in the same manner as in Example 1 except that No. 2 was used. The evaluation results are shown in Tables 1 and 2.
【0054】実施例4 (1)(A)樹脂を前記ラミネート樹脂のLLDPE−
1に代えたこと以外は、実施例2と同様にして、積層フ
ィルム、プリントラミネート製品を得た。評価結果を表
1および表2に示す。Example 4 (1) The resin (A) was replaced with the above-mentioned laminated resin LLDPE-
Except having changed to 1, it carried out similarly to Example 2, and obtained the laminated film and the print laminated product. The evaluation results are shown in Tables 1 and 2.
【0055】実施例5 (1)(B)樹脂を前記ラミネート樹脂のLLDPE−
3に代えたこと以外は、実施例1と同様にして、積層フ
ィルム、プリントラミネート製品を得た。評価結果を表
1および表2に示す。Example 5 (1) The resin (B) was replaced with the above-mentioned laminated resin LLDPE-
A laminated film and a print-laminated product were obtained in the same manner as in Example 1 except for changing to No. 3. The evaluation results are shown in Tables 1 and 2.
【0056】比較例1 (1)(A)樹脂、(B)樹脂および(B)樹脂を、前
記ラミネート樹脂のLLDPE−1として、それぞれを
口径65mmの押出機に装着したTダイから、樹脂温度
250℃、幅500mm、肉厚(A)樹脂層3μm、
(B)樹脂層5μm、(C)樹脂層7μmにて、フィル
ム状に(A)樹脂層面が基材面となるように3層で溶融
共押出ししたこと以外は、実施例1と同様にして、積層
フィルム、プリントラミネート製品を得た。評価結果を
表1および表2に示す。Comparative Example 1 (1) The resin (A), the resin (B) and the resin (B) were used as the laminated resin LLDPE-1, respectively, and the resin temperature was measured from a T-die mounted on an extruder having a diameter of 65 mm. 250 ° C., width 500 mm, thickness (A) resin layer 3 μm,
(B) A resin layer was formed in the same manner as in Example 1 except that the resin layer was 5 μm and the resin layer (C) was 7 μm, and three layers were melt-coextruded so that the (A) resin layer surface became the substrate surface. , A laminate film and a print laminate product were obtained. The evaluation results are shown in Tables 1 and 2.
【0057】比較例2 (1)前記ラミネート樹脂LLDPE−1:90重量%
と、LDPE:10重量%の混合物を、口径90mmの
押出機に装着したTダイから、樹脂温度250℃、幅5
00mm、肉厚15μmにて、フィルム状に1層で溶融
押出しした。 (2)次いで、押出ラミネート装置の基材の繰出部より
厚さ15μmの二軸延伸ポリプロピレンフィルム〔二村
化学工業製 LOF2(商品名)〕を繰り出し、この片
面にアンカーコート剤を塗布し、乾燥後、塗布面とTダ
イからフィルム状に1層で溶融押出しした樹脂層の間を
オゾン処理し、表面をマット仕上げした冷却ロールと圧
縮ゴムロールで圧着ラミネートし、さらに積層されたフ
ィルムの樹脂層の表面に20W・分/m2のコロナ放電
処理を施し、積層フィルムを得たこと以外は、実施例1
と同様にして、積層フィルム、プリントラミネート製品
を得た。評価結果を表1および表2に示す。Comparative Example 2 (1) Laminated resin LLDPE-1: 90% by weight
And a mixture of LDPE: 10% by weight was passed through a T-die mounted on an extruder having a diameter of 90 mm, and a resin temperature of 250 ° C. and a width of 5 mm.
It was melt-extruded in one layer into a film with a thickness of 00 mm and a thickness of 15 μm. (2) Next, a 15-μm-thick biaxially-stretched polypropylene film [LOF2 (trade name) manufactured by Nimura Chemical Industry Co., Ltd.] is fed from the feed-out portion of the base material of the extrusion laminating apparatus, an anchor coating agent is applied to one surface of the film, and dried. The ozone treatment is applied between the application surface and the resin layer melt-extruded as a single layer from a T-die into a film, and the surface of the resin layer of the laminated film is pressure-bonded with a cooling roll and a compression rubber roll whose surfaces are matted. Example 1 was subjected to a corona discharge treatment of 20 W · min / m 2 to obtain a laminated film.
In the same manner as described above, a laminated film and a printed laminate product were obtained. The evaluation results are shown in Tables 1 and 2.
【0058】比較例3 (1)(A)樹脂を前記ラミネート樹脂のLLDPE−
3、(B)樹脂をLDPE、(C)樹脂をLLDPE−
1として、それぞれを口径が65mmの押出機に装着し
たTダイから、樹脂温度250℃、幅500mm、肉厚
(A)樹脂層3μm、(B)樹脂層5μm、(C)樹脂
層7μmにて、フィルム状に(A)樹脂層面が基材面と
なるように3層で溶融共押出ししたこと以外は、実施例
1と同様にして、積層フィルム、プリントラミネート製
品を得た。評価結果を表1および表2に示す。Comparative Example 3 (1) The resin (A) was used as the above-mentioned laminated resin LLDPE-
3, (B) resin is LDPE, (C) resin is LLDPE-
As 1, a resin temperature of 250 ° C., a width of 500 mm, a thickness (A) of 3 μm, a (B) resin layer of 5 μm, and a (C) resin layer of 7 μm were obtained from a T-die mounted on an extruder having a diameter of 65 mm. A laminated film and a print-laminated product were obtained in the same manner as in Example 1, except that three layers were melt-coextruded so that the resin layer surface (A) became the substrate surface in the form of a film. The evaluation results are shown in Tables 1 and 2.
【0059】比較例4 (1)(A)樹脂を前記ラミネート樹脂のEVA、
(B)樹脂をLDPE、(C)樹脂をLLDPE−3と
して、それぞれを口径65mmの押出機に装着したTダ
イから、樹脂温度250℃、幅500mm、肉厚(A)
樹脂層3μm、(B)樹脂層5μm、(C)樹脂層7μ
mにて、フィルム状に(A)樹脂層面が基材面となるよ
うに3層で溶融共押出ししたこと以外は、実施例1と同
様にして、積層フィルム、プリントラミネート製品を得
た。評価結果を表1および表2に示す。COMPARATIVE EXAMPLE 4 (1) (A) The resin was EVA,
(B) The resin was LDPE, and the resin (C) was LLDPE-3. The resin temperature was 250 ° C., the width was 500 mm, and the wall thickness was (A) from a T-die mounted on an extruder having a diameter of 65 mm.
Resin layer 3 μm, (B) resin layer 5 μm, (C) resin layer 7 μ
At m, a laminated film and a print-laminated product were obtained in the same manner as in Example 1, except that three layers were melt-coextruded so that the resin layer surface (A) became the substrate surface in the form of a film. The evaluation results are shown in Tables 1 and 2.
【0060】比較例5 (1)前記ラミネート樹脂のEVAを、口径90mmの
押出機に装着したTダイから、樹脂温度240℃、幅5
00mm、肉厚15μmにて、フィルム状に1層で溶融
押出ししたこと以外は、比較例2と同様にして、積層フ
ィルム、プリントラミネート製品を得た。評価結果を表
1および表2に示す。Comparative Example 5 (1) EVA of the above-mentioned laminated resin was fed from a T die mounted on an extruder having a diameter of 90 mm to a resin temperature of 240 ° C. and a width of 5 mm.
A laminated film and a print-laminated product were obtained in the same manner as in Comparative Example 2 except that one layer was melt-extruded into a film at a thickness of 00 mm and a thickness of 15 μm. The evaluation results are shown in Tables 1 and 2.
【0061】[0061]
【表1】 [Table 1]
【0062】[0062]
【表2】 [Table 2]
【0063】[0063]
【発明の効果】本発明のプリントラミネート用積層フィ
ルムは、熱可塑性樹脂フィルム基材に積層する接着樹脂
層を3層とし、印刷体の印刷面に熱圧着される接着層の
(C)樹脂は直鎖状エチレン・α−オレフィン共重合体
単体であり、融解ピーク温度が低く、印刷体の印刷面と
低温でプリントラミネーション可能であり、かつ、プリ
ントラミネート製品の印刷紙との接着性に優れ、印刷イ
ンクの変色、カール防止ができる。さらに、(A)樹脂
層、(B)樹脂層のいずれか、または両層に加工性に優
れた樹脂を用いて(C)樹脂層との共押出しを行ってい
るので、押出ラミネート加工時のサージング現象を防止
し、安定したフィルム成形が可能であり、フィルム基材
との接着性、積層フィルムのカット性、プリントラミネ
ート製品のトンネリング性に優れた積層フィルムを提供
することができる。The laminated film for print lamination of the present invention has three adhesive resin layers laminated on a thermoplastic resin film substrate, and the resin (C) of the adhesive layer which is thermocompression-bonded to the printing surface of the printed body is It is a linear ethylene / α-olefin copolymer alone, has a low melting peak temperature, is capable of print lamination at a low temperature on the printing surface of a printed material, and has excellent adhesiveness to a printing paper of a print laminate product, Discoloration and curl of printing ink can be prevented. Furthermore, since one of the resin layers (A) and (B) or both layers is coextruded with the resin layer (C) by using a resin having excellent workability, the resin is extruded during extrusion lamination. It is possible to provide a laminated film which can prevent the surging phenomenon, stably form a film, and have excellent adhesiveness to a film substrate, cutability of a laminated film, and excellent tunneling property of a printed laminated product.
フロントページの続き Fターム(参考) 4F100 AK01A AK05C AK06B AK06C AK07 AK62D AK63B AK63C AK63D AK68B AL01B AT00A BA04 BA07 BA10A GB41 GB71 JA06B JA06C JA06D JB16A JL01 JL05 JL11 YY00B YY00C Continued on front page F term (reference) 4F100 AK01A AK05C AK06B AK06C AK07 AK62D AK63B AK63C AK63D AK68B AL01B AT00A BA04 BA07 BA10A GB41 GB71 JA06B JA06C JA06D JB16A JL01 JL05 JL11 YY00Y
Claims (4)
記(A1)樹脂層が接し、その上に(B1)樹脂層、さ
らにその上に(C)樹脂層が積層されてなるプリントラ
ミネート用積層フィルム。 (A1)樹脂:エチレン含有量が65〜95重量%、M
FR(190℃、2.16kg荷重)が1〜100g/
10分である高圧ラジカル重合法で得られるエチレン系
共重合体樹脂。 (B1)樹脂:密度が0.910〜0.960g/cm
3、MFR(190℃、2.16kg荷重)が1〜10
0g/10分の、高圧法低密度ポリエチレン、直鎖状エ
チレン・α−オレフィン共重合体および低圧法高密度ポ
リエチレンから選ばれる1種以上のエチレン系樹脂。 (C)樹脂:エチレンと炭素数が3〜12のα−オレフ
ィンとを共重合して得た、密度が0.870〜0.91
0g/cm3、MFR(190℃、2.16kg荷重)
が1〜100g/10分である直鎖状エチレン・α−オ
レフィン共重合体樹脂。1. A print lamination in which the following resin layer (A1) is in contact with one surface of a thermoplastic resin film substrate, a resin layer (B1) is further formed thereon, and a resin layer (C) is further formed thereon. Laminated film. (A1) resin: ethylene content of 65 to 95% by weight, M
FR (190 ° C., 2.16 kg load) is 1 to 100 g /
An ethylene copolymer resin obtained by a high-pressure radical polymerization method for 10 minutes. (B1) Resin: 0.910 to 0.960 g / cm in density
3 , MFR (190 ° C, 2.16 kg load) is 1 to 10
0 g / 10 min, at least one ethylene resin selected from high-pressure low-density polyethylene, linear ethylene / α-olefin copolymer and low-pressure high-density polyethylene. (C) Resin: Density of 0.870 to 0.91 obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms.
0 g / cm 3 , MFR (190 ° C., 2.16 kg load)
Is a linear ethylene / α-olefin copolymer resin having a molecular weight of 1 to 100 g / 10 minutes.
記(A2)樹脂層が接し、その上に(B2)樹脂層、さ
らにその上に(C)樹脂層が積層されてなるプリントラ
ミネート用積層フィルム。 (A2)樹脂:密度が0.900g/cm3以下、MF
R(190℃、2.16kg荷重)が1〜100g/1
0分であるエチレンと炭素数が3〜20のα−オレフィ
ンとの直鎖状エチレン系共重合体樹脂。 (B2)樹脂:密度が0.910〜0.960g/cm
3、MFR(190℃、2.16kg荷重)が1〜10
0g/10分の高圧法低密度ポリエチレンを含有する1
種以上のエチレン系樹脂。 (C)樹脂:エチレンと炭素数が3〜12のα−オレフ
ィンとを共重合して得た、密度が0.870〜0.91
0g/cm3、MFR(190℃、2.16kg荷重)
が1〜100g/10分である直鎖状エチレン・α−オ
レフィン共重合体樹脂。2. A print lamination in which the following resin layer (A2) is in contact with one surface of a thermoplastic resin film substrate, a resin layer (B2) is further laminated thereon, and a resin layer (C) is further laminated thereon. Laminated film. (A2) resin: density: 0.900 g / cm 3 or less, MF
R (190 ° C., 2.16 kg load) is 1 to 100 g / 1
A linear ethylene copolymer resin of ethylene for 0 minutes and an α-olefin having 3 to 20 carbon atoms. (B2) Resin: density of 0.910 to 0.960 g / cm
3 , MFR (190 ° C, 2.16 kg load) is 1 to 10
1 containing 0 g / 10 min high pressure method low density polyethylene
More than one kind of ethylene resin. (C) Resin: Density of 0.870 to 0.91 obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms.
0 g / cm 3 , MFR (190 ° C., 2.16 kg load)
Is a linear ethylene / α-olefin copolymer resin having a molecular weight of 1 to 100 g / 10 minutes.
オレフィン共重合体樹脂が、温度上昇溶離分別(TRE
F)において80℃以下における溶出量が共重合体全量
に対して90重量%以上のものである請求項1または2
に記載のプリントラミネート用積層フィルム。3. A straight-chain ethylene-α-resin which is (C) a resin.
Olefin copolymer resin is separated by temperature rise elution (TRE
3. The composition according to claim 1, wherein in F), the elution amount at 80 ° C. or less is 90% by weight or more based on the total amount of the copolymer.
3. The laminated film for print lamination according to 1.).
オレフィン共重合体樹脂が、重合触媒としてメタロセン
化合物を用いて重合されたものである請求項1ないし3
に記載のプリントラミネート用積層フィルム。4. The resin (C), which is a linear ethylene.α-
The olefin copolymer resin is obtained by polymerizing a metallocene compound as a polymerization catalyst.
3. The laminated film for print lamination according to 1.).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000309732A JP2002113825A (en) | 2000-10-10 | 2000-10-10 | Print laminating laminated film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000309732A JP2002113825A (en) | 2000-10-10 | 2000-10-10 | Print laminating laminated film |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002113825A true JP2002113825A (en) | 2002-04-16 |
Family
ID=18789834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000309732A Pending JP2002113825A (en) | 2000-10-10 | 2000-10-10 | Print laminating laminated film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002113825A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004066513A (en) * | 2002-08-02 | 2004-03-04 | Tootsuya:Kk | Biodegradable matte film material and method for producing the same |
-
2000
- 2000-10-10 JP JP2000309732A patent/JP2002113825A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004066513A (en) * | 2002-08-02 | 2004-03-04 | Tootsuya:Kk | Biodegradable matte film material and method for producing the same |
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