JP2009126040A - Manufacturing method of transparent laminate film - Google Patents
Manufacturing method of transparent laminate film Download PDFInfo
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- JP2009126040A JP2009126040A JP2007302755A JP2007302755A JP2009126040A JP 2009126040 A JP2009126040 A JP 2009126040A JP 2007302755 A JP2007302755 A JP 2007302755A JP 2007302755 A JP2007302755 A JP 2007302755A JP 2009126040 A JP2009126040 A JP 2009126040A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 239000005001 laminate film Substances 0.000 title claims abstract description 34
- 239000010408 film Substances 0.000 claims abstract description 247
- 238000000576 coating method Methods 0.000 claims abstract description 156
- 239000011248 coating agent Substances 0.000 claims abstract description 150
- 239000011342 resin composition Substances 0.000 claims abstract description 73
- 239000013039 cover film Substances 0.000 claims abstract description 69
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- 206010040844 Skin exfoliation Diseases 0.000 claims description 10
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- 229920002050 silicone resin Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 46
- 239000011347 resin Substances 0.000 abstract description 46
- 238000000034 method Methods 0.000 abstract description 26
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- 238000002834 transmittance Methods 0.000 description 7
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- 238000001816 cooling Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 6
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- 239000000463 material Substances 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
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- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 229910001507 metal halide Inorganic materials 0.000 description 3
- 150000005309 metal halides Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000007977 PBT buffer Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 238000007348 radical reaction Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- ZNAAXKXXDQLJIX-UHFFFAOYSA-N bis(2-cyclohexyl-3-hydroxyphenyl)methanone Chemical compound C1CCCCC1C=1C(O)=CC=CC=1C(=O)C1=CC=CC(O)=C1C1CCCCC1 ZNAAXKXXDQLJIX-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- KOMDZQSPRDYARS-UHFFFAOYSA-N cyclopenta-1,3-diene titanium Chemical compound [Ti].C1C=CC=C1.C1C=CC=C1 KOMDZQSPRDYARS-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000005641 methacryl group Chemical group 0.000 description 1
- KBXJHRABGYYAFC-UHFFFAOYSA-N octaphenylsilsesquioxane Chemical compound O1[Si](O2)(C=3C=CC=CC=3)O[Si](O3)(C=4C=CC=CC=4)O[Si](O4)(C=5C=CC=CC=5)O[Si]1(C=1C=CC=CC=1)O[Si](O1)(C=5C=CC=CC=5)O[Si]2(C=2C=CC=CC=2)O[Si]3(C=2C=CC=CC=2)O[Si]41C1=CC=CC=C1 KBXJHRABGYYAFC-UHFFFAOYSA-N 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002987 primer (paints) Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000007767 slide coating Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
Description
本発明は、透明積層体フィルムの製造方法に関し、より詳しくは、光学用フィルム等の透明性、表面硬度、耐熱性、平滑性が要求される用途への適用が考えられ、具体的には、ディスプレイ基板、太陽電池基板等の用途に好適に用いることができる透明積層体フィルムの製造方法に関する。 The present invention relates to a method for producing a transparent laminate film, and more specifically, application to applications requiring transparency, surface hardness, heat resistance, and smoothness of optical films and the like, specifically, The present invention relates to a method for producing a transparent laminate film that can be suitably used for applications such as a display substrate and a solar cell substrate.
プラスチック、特に光硬化性樹脂組成物を透明なベースフィルム（支持体フィルム）の両表面に積層し、紫外線照射により硬化させ、光硬化型の透明積層体フィルムを形成する方法に関して、従来から次に示すような製造方法が知られている。 Regarding a method of forming a photo-curable transparent laminate film from the past, a plastic, particularly a photo-curable resin composition, is laminated on both surfaces of a transparent base film (support film) and cured by ultraviolet irradiation. Manufacturing methods as shown are known.
光硬化型の透明積層体フィルムの製造方法としては、ベースフィルムの一方の表面上に光硬化性樹脂組成物を塗布した後（一層目）に、紫外線照射し、その後、もう一方の面の表面上に光硬化性樹脂組成物を塗布した後（二層目）に、紫外線照射することが一般的であった。しかしながら、このような製造方法においては、得られる透明積層体フィルムにおける一層目の光硬化層と二層目の光硬化層の反応率に違いが生じるため、透明積層体フィルムの品質制御が困難となるという問題があった。 As a method for producing a photocurable transparent laminate film, after applying a photocurable resin composition on one surface of a base film (first layer), ultraviolet irradiation is performed, and then the surface of the other surface is applied. After applying the photocurable resin composition on the top (second layer), it was common to irradiate with ultraviolet rays. However, in such a manufacturing method, the difference in the reaction rate between the first photocured layer and the second photocured layer in the obtained transparent laminate film results in difficulty in controlling the quality of the transparent laminate film. There was a problem of becoming.
このような問題を解決するために、透明積層体フィルムを製造するにあたり、紫外線を両面同時に照射して光硬化性樹脂を硬化せしめる方法が提案されている。そのため、ベースフィルムの両方の表面に光硬化性樹脂を塗布する方法が検討されており、例えば、特開平１０−３３７５１６号公報（特許文献１）には、フィルムの左右に樹脂ダムを形成し、フィルムを上から下へ搬送しながら、フィルムの左右に樹脂を塗布する方法が開示されている。また、特開平１０−３１４６４７号公報（特許文献２）には、フィルムを下から上へ搬送しながら、フィルムの左右にダイコーターを設置し、塗布する方法が開示されている。しかしながら、これらの特許文献等に記載されたような方法においては、塗布厚みを調整することや塗布厚みの均一性を確保することが困難であるという問題があった。
本発明は、上記従来技術の有する課題に鑑みてなされたものであり、透明なベースフィルムと、前記ベースフィルムの両面に積層された光硬化性樹脂層とを備える透明積層体フィルムの製造方法において、光硬化性樹脂層の厚みの均一性が十分に優れると共に光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することが可能な透明積層体フィルムの製造方法を提供することを目的とする。 This invention is made in view of the subject which the said prior art has, In the manufacturing method of a transparent laminated body film provided with the transparent base film and the photocurable resin layer laminated | stacked on both surfaces of the said base film. Production of a transparent laminate film capable of efficiently producing a transparent laminate film in which the uniformity of the thickness of the photocurable resin layer is sufficiently excellent and the uniformity of the curing reaction rate of the photocurable resin is sufficiently excellent It aims to provide a method.
本発明者は、上記目的を達成すべく鋭意研究を重ねた結果、ベースフィルムと、前記ベースフィルムの両面に積層された光硬化性樹脂層とを備える透明積層体フィルムの製造方法において、ベースフィルムの一方の表面上に第１の光硬化性樹脂組成物の塗膜を形成した後に第１のカバーフィルムを圧着すると同時に前記第１の塗膜の塗布厚みを均一化して片面塗膜付ベースフィルムを作製し、一方で、第２のカバーフィルムの表面上に第２の光硬化性樹脂組成物の塗膜を形成した後に、第２の塗膜を形成した第２のカバーフィルムと前記片面塗膜付ベースフィルムとを圧着すると同時に前記第２塗膜の塗布厚みを均一化することにより、光硬化性樹脂層の厚みの均一性が十分に優れると共に光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することが可能となることを見出し、本発明を完成するに至った。 As a result of intensive studies to achieve the above object, the present inventor has obtained a base film and a base film and a method for producing a transparent laminate film comprising a photocurable resin layer laminated on both surfaces of the base film. After forming a coating film of the first photocurable resin composition on one surface of the film, the first cover film is pressure-bonded, and at the same time, the coating thickness of the first coating film is made uniform, thereby providing a base film with a single-side coating film. On the other hand, after forming the coating film of the second photocurable resin composition on the surface of the second cover film, the second cover film having the second coating film formed thereon and the one-side coating By applying pressure to the base film with film and simultaneously making the coating thickness of the second coating film uniform, the uniformity of the thickness of the photocurable resin layer is sufficiently excellent and the uniformity of the curing reaction rate of the photocurable resin Is good enough It found that it is possible to efficiently produce a bright laminate film, thereby completing the present invention.
すなわち、本発明の透明積層体フィルムの製造方法は、両方の表面に易接着処理がなされた透明なベースフィルムの一方の表面上に第１の光硬化性樹脂組成物を、塗布厚みが０．０１〜０．４ｍｍの範囲となるようにフィルム状に塗布して第１の塗膜を形成する工程と、
前記第１の塗膜が形成されたベースフィルムと少なくとも一方の表面に易剥離処理がなされた透明な第１のカバーフィルムとを、前記第１の塗膜の表面と前記第１のカバーフィルムの易剥離処理がなされた表面とが接するようにして圧着すると同時に前記第１の塗膜の塗布厚みを均一化して片面塗膜付ベースフィルムを得る工程と、
第２のカバーフィルムの易剥離処理がなされた表面上に第２の光硬化性樹脂組成物を、塗布厚みが０．０１〜０．４ｍｍの範囲となるようにフィルム状に塗布して第２の塗膜を形成する工程と、
前記第２の塗膜が形成された第２のカバーフィルムと前記片面塗膜付ベースフィルムとを、前記カバーフィルムがそれぞれ外側になるようにして圧着すると同時に前記第２の塗膜の塗布厚みを均一化して両面塗膜付ベースフィルムを得る工程と、
前記両面塗膜付ベースフィルムに紫外線を照射して前記光硬化性樹脂組成物を硬化せしめる工程と、
を含むことを特徴とする方法である。
That is, in the method for producing a transparent laminate film of the present invention, the coating thickness of the first photocurable resin composition is 0.1 on one surface of a transparent base film that has been subjected to easy adhesion treatment on both surfaces. Applying a film to form a first coating film in a range of 01 to 0.4 mm; and
A base film on which the first coating film is formed and a transparent first cover film on which at least one surface has been easily peeled, a surface of the first coating film and the first cover film A step of obtaining a base film with a single-side coating film by making the application thickness of the first coating film uniform at the same time with pressure-bonding so as to be in contact with the surface that has been subjected to an easy peeling treatment;
A second photocurable resin composition is applied in the form of a film so that the coating thickness is in the range of 0.01 to 0.4 mm on the surface of the second cover film on which the easy peeling treatment has been performed. Forming a coating film of
The second cover film on which the second coating film is formed and the base film with a single-side coating film are pressure-bonded so that the cover films are on the outside, and at the same time, the coating thickness of the second coating film is set. A step of homogenizing to obtain a base film with a double-sided coating film;
Irradiating the base film with a double-sided coating film with ultraviolet rays to cure the photocurable resin composition;
It is the method characterized by including.
また、本発明の透明積層体フィルムの製造方法においては、前記光硬化性樹脂組成物が、光硬化性を有するシリコーン系樹脂を３質量％以上含有するものであることが好ましい。 Moreover, in the manufacturing method of the transparent laminated body film of this invention, it is preferable that the said photocurable resin composition contains 3 mass% or more of silicone resin which has photocurability.
さらに、本発明の透明積層体フィルムの製造方法においては、前記第１及び第２の塗膜を形成するにあたり、前記第１及び第２の光硬化性樹脂組成物を回転ロールに保持された状態のベースフィルム及び第２のカバーフィルムにそれぞれ塗布することが好ましい。 Furthermore, in the manufacturing method of the transparent laminated body film of this invention, in forming the said 1st and 2nd coating film, the state by which the said 1st and 2nd photocurable resin composition was hold | maintained at the rotating roll It is preferable to apply to each of the base film and the second cover film.
なお、本発明の透明積層体フィルムの製造方法によれば、透明なベースフィルムと、前記ベースフィルムの両面に積層された光硬化性樹脂層とを備える透明積層体フィルムの製造方法において、光硬化性樹脂層の厚みの均一性が十分に優れると共に光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することが可能となる。すなわち、本発明においては、先ず、第１のカバーフィルムを圧着する際に第１の塗膜の塗布厚みを均一化しており、次に、第２の塗膜を形成した第２のカバーフィルムを圧着する際に前記第２の塗膜の塗布厚みを均一化している。このように、一方の塗膜の塗布厚みを均一化した後に他方の塗膜の塗布厚みを均一化しているため、同時に両面の塗膜の塗布厚みを均一化する場合と比較して相乗的に塗布厚みを均一化することができる。また、本発明においては、第２の塗膜を、裏面に第１の塗膜が形成されているベースフィルムの表面上ではなく、第２のカバーフィルムの表面上に形成している。そのため、裏面に形成された流動性を有する第１の塗膜を考慮することなく第２の光硬化性樹脂組成物を塗布することができ、さらには、第２の光硬化性樹脂組成物を塗布する際にフィルムをより動きにくい状態に保持することができる。したがって、第２の塗膜をベースフィルムの表面上に形成する場合と比較してより確実に塗布厚みを均一化することができる。以上説明したように、本発明の透明積層体フィルムの製造方法によれば、従来の方法と比較して飛躍的に光硬化性樹脂組成物の塗膜の塗布厚みを均一化することができるため、光硬化性樹脂層の厚みの均一性が十分に優れる透明積層体フィルムを効率よく製造することができる。 In addition, according to the manufacturing method of the transparent laminated body film of this invention, in the manufacturing method of a transparent laminated body film provided with a transparent base film and the photocurable resin layer laminated | stacked on both surfaces of the said base film, photocuring It is possible to efficiently produce a transparent laminate film in which the uniformity of the thickness of the photosensitive resin layer is sufficiently excellent and the uniformity of the curing reaction rate of the photocurable resin is sufficiently excellent. That is, in the present invention, first, when the first cover film is pressure-bonded, the coating thickness of the first coating film is made uniform, and then the second cover film on which the second coating film is formed. When the pressure bonding is performed, the coating thickness of the second coating film is made uniform. Thus, since the coating thickness of the other coating film is uniformized after uniformizing the coating thickness of one coating film, synergistically compared with the case where the coating thickness of the coating film on both sides is uniformed simultaneously. The coating thickness can be made uniform. Moreover, in this invention, the 2nd coating film is formed on the surface of the 2nd cover film instead of on the surface of the base film in which the 1st coating film is formed in the back surface. Therefore, it is possible to apply the second photocurable resin composition without considering the first coated film having fluidity formed on the back surface. Furthermore, the second photocurable resin composition can be applied to the second photocurable resin composition. When applied, the film can be held in a more difficult state. Therefore, compared with the case where a 2nd coating film is formed on the surface of a base film, application | coating thickness can be equalized more reliably. As explained above, according to the method for producing a transparent laminate film of the present invention, the coating thickness of the photo-curable resin composition can be dramatically made uniform as compared with the conventional method. It is possible to efficiently produce a transparent laminate film in which the uniformity of the thickness of the photocurable resin layer is sufficiently excellent.
また、本発明においては、両面同時に紫外線を照射して光硬化性樹脂組成物を硬化せしめるため、光硬化性樹脂の硬化反応率を十分に均一にすることができる。また、本発明においては、紫外線を照射して光硬化性樹脂組成物を硬化せしめる際に、光硬化性樹脂組成物の塗膜が酸素透過率の小さいカバーフィルムに覆われているため、紫外線による硬化反応（ラジカル反応）における酸素阻害の影響が小さくなり効率よく反応が進行する。したがって、本発明の透明積層体フィルムの製造方法によれば、光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することができる。 Further, in the present invention, since the photocurable resin composition is cured by simultaneously irradiating both sides with ultraviolet rays, the curing reaction rate of the photocurable resin can be made sufficiently uniform. Further, in the present invention, when the photocurable resin composition is cured by irradiating ultraviolet rays, the coating film of the photocurable resin composition is covered with a cover film having a low oxygen transmission rate. The influence of oxygen inhibition in the curing reaction (radical reaction) is reduced, and the reaction proceeds efficiently. Therefore, according to the manufacturing method of the transparent laminated body film of this invention, the transparent laminated body film in which the uniformity of the curing reaction rate of photocurable resin is fully excellent can be manufactured efficiently.
本発明によれば、透明なベースフィルムと、前記ベースフィルムの両面に積層された光硬化性樹脂層とを備える透明積層体フィルムの製造方法において、光硬化性樹脂層の厚みの均一性が十分に優れると共に光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することが可能な透明積層体フィルムの製造方法を提供することが可能となる。また、本発明の透明積層体フィルムの製造方法によれば、ベースフィルムの両面で異なる厚みの光硬化性樹脂層を形成することも容易であり、また、光硬化性樹脂層を形成するにあたり、粘度の異なる光硬化性樹脂組成物を用いることもできる。 According to the present invention, in a method for producing a transparent laminate film comprising a transparent base film and a photocurable resin layer laminated on both sides of the base film, the thickness uniformity of the photocurable resin layer is sufficient. It is possible to provide a method for producing a transparent laminate film that can efficiently produce a transparent laminate film that is excellent in the uniformity of the curing reaction rate of the photocurable resin. In addition, according to the method for producing a transparent laminate film of the present invention, it is easy to form photocurable resin layers having different thicknesses on both surfaces of the base film, and in forming the photocurable resin layer, Photocurable resin compositions having different viscosities can also be used.
以下、本発明をその好適な実施形態に即して詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to preferred embodiments thereof.
本発明の透明積層体フィルムの製造方法は、両方の表面に易接着処理がなされた透明なベースフィルムの一方の表面上に第１の光硬化性樹脂組成物を、塗布厚みが０．０１〜０．４ｍｍの範囲となるようにフィルム状に塗布して第１の塗膜を形成する工程（第１の工程）と、
前記第１の塗膜が形成されたベースフィルムと少なくとも一方の表面に易剥離処理がなされた透明な第１のカバーフィルムとを、前記第１の塗膜の表面と前記第１のカバーフィルムの易剥離処理がなされた表面とが接するようにして圧着すると同時に前記第１の塗膜の塗布厚みを均一化して片面塗膜付ベースフィルムを得る工程（第２の工程）と、
第２のカバーフィルムの易剥離処理がなされた表面上に第２の光硬化性樹脂組成物を、塗布厚みが０．０１〜０．４ｍｍの範囲となるようにフィルム状に塗布して第２の塗膜を形成する工程（第３の工程）と、
前記第２の塗膜が形成された第２のカバーフィルムと前記片面塗膜付ベースフィルムとを、前記カバーフィルムがそれぞれ外側になるようにして圧着すると同時に前記第２の塗膜の塗布厚みを均一化して両面塗膜付ベースフィルムを得る工程（第４の工程）と、
前記両面塗膜付ベースフィルムに紫外線を照射して前記光硬化性樹脂組成物を硬化せしめる工程（第５の工程）と、
を含むことを特徴とする方法である。
In the method for producing a transparent laminate film of the present invention, the coating thickness of the first photocurable resin composition is 0.01 to 1 on one surface of a transparent base film which has been subjected to easy adhesion treatment on both surfaces. A step (first step) of forming a first coating film by coating in the form of a film so as to be in a range of 0.4 mm;
A base film on which the first coating film is formed and a transparent first cover film on which at least one surface has been easily peeled, a surface of the first coating film and the first cover film A step of obtaining a base film with a single-sided coating film (second process) by making the coating thickness of the first coating film uniform at the same time as pressure-bonding so as to be in contact with the surface that has been subjected to an easy-release treatment (second process);
A second photocurable resin composition is applied in the form of a film so that the coating thickness is in the range of 0.01 to 0.4 mm on the surface of the second cover film on which the easy peeling treatment has been performed. A step of forming a coating film (third step);
The second cover film on which the second coating film is formed and the base film with a single-side coating film are pressure-bonded so that the cover films are on the outside, and at the same time, the coating thickness of the second coating film is set. A step (fourth step) for obtaining a base film with a double-sided coating film by homogenization
A step of curing the photocurable resin composition by irradiating the base film with a double-sided coating film with ultraviolet rays (fifth step);
It is the method characterized by including.
先ず、本発明の透明積層体フィルムの製造方法に用いる光硬化性樹脂組成物、ベースフィルム及びカバーフィルムについて説明する。 First, the photocurable resin composition, the base film, and the cover film used in the method for producing the transparent laminate film of the present invention will be described.
本発明にかかる光硬化性樹脂組成物とは、光硬化性を有し、流動性又は可塑性を有する樹脂組成物のことをいう。また、本発明でいう光硬化性樹脂とは、活性エネルギー線を照射して硬化可能な樹脂あればよく、特に制限されない。本発明にかかる光硬化性樹脂組成物は、複数の樹脂又はモノマーを含む樹脂組成物であってもよい。このような樹脂又はモノマーとしては特に限定されないが、例えば、（メタ）アクリレート、多官能（メタ）アクリレート、エポキシが挙げられる。また、このような光硬化性樹脂組成物としては、光硬化性を有するシリコーン系樹脂を３質量％以上（より好ましくは５〜３０質量％）含有するものであることが好ましい。このように光硬化性を有するシリコーン系樹脂としては、二重結合等の官能基を有するシロキサン系樹脂が挙げられる。さらに、このような光硬化性樹脂組成物は、光硬化性を阻害しなければ、フィラー系添加物を含有していてもよい。 The photocurable resin composition according to the present invention refers to a resin composition having photocurability and fluidity or plasticity. In addition, the photocurable resin referred to in the present invention is not particularly limited as long as it is a resin that can be cured by irradiation with active energy rays. The photocurable resin composition according to the present invention may be a resin composition containing a plurality of resins or monomers. Such a resin or monomer is not particularly limited, and examples thereof include (meth) acrylate, polyfunctional (meth) acrylate, and epoxy. Moreover, as such a photocurable resin composition, it is preferable to contain 3 mass% or more (more preferably 5-30 mass%) of silicone resin which has photocurability. Examples of the photocurable silicone resin include a siloxane resin having a functional group such as a double bond. Furthermore, such a photocurable resin composition may contain a filler additive as long as the photocurability is not inhibited.
また、本発明にかかる光硬化性樹脂組成物は、通常、光重合開始剤を含有しているものである。このような光重合開始剤としては、市販されているものを適宜選択して使用することができる。また、このような光重合開始剤としては、例えば、アルキンフェノン系、アシルフォスフィンオキサイド系、チタノセン系等の光重合開始剤が挙げられる。なお、このような光硬化性樹脂組成物としては、粘度調整等のために、適当な溶媒を希釈剤として含有しているものを使用してもよいが、溶媒の揮発除去工程を考慮すると時間を要し生産効率が低下するという観点、並びに硬化フィルム内部に残留溶媒等が存在し成形フィルムの特性低下につながるという観点から、溶媒を含有していないものを使用することが好ましい。また、このような光硬化性樹脂組成物は、硬化の際に揮発分を発生しないものであることが好ましい。 The photocurable resin composition according to the present invention usually contains a photopolymerization initiator. As such a photoinitiator, what is marketed can be selected suitably, and can be used. Examples of such a photopolymerization initiator include alkynephenone-based, acylphosphine oxide-based, and titanocene-based photopolymerization initiators. In addition, as such a photocurable resin composition, what contains an appropriate solvent as a diluent may be used for viscosity adjustment or the like, but considering the solvent devolatilization step, time is required. It is preferable to use a material that does not contain a solvent from the viewpoint that production efficiency is reduced and that a residual solvent or the like is present inside the cured film leading to deterioration of the properties of the molded film. Moreover, it is preferable that such a photocurable resin composition does not generate | occur | produce a volatile matter in the case of hardening.
本発明にかかるベースフィルムは、本発明で得られる透明積層体フィルムの支持体となるフィルムであって、両方の表面に易接着処理がなされた透明なフィルムである。このようなベースフィルムの材質としては、例えば、ＰＥＴ（ポリエチレンテレフタレート）、ＰＥＮ（ポリエチレンナフタレート）、ＰＢＴ（ポリブチレンフタレート）、ＣＯＰ（シクロオレフィンポリマー）、ＣＯＣ（シクロオレフィンコポリマー）、ＰＣ（ポリカーボネート）、アセテート系樹脂、アクリル系樹脂、フッ化ビニル系樹脂、ポリアミド、ポリアリレート、セロファン、ポリエーテルスルホン、ノルボルネン系樹脂等のプラスチックが挙げられる。これらのプラスチックの中でも、ベースフィルムの透明性並びに光硬化性樹脂組成物との密着性の観点から、ＰＥＴ、ＰＥＮ、ＰＢＴ、ＣＯＰ、ＣＯＣ、ＰＣ、アクリル系樹脂が好ましい。これらのプラスチックは、１種を単独で又は２種以上を組み合わせて使用することができる。また、このようなベースフィルムは、これらのプラスチックからなる単層フィルムであってもよく、これらのプラスチックからなるフィルムを組み合わせた多層フィルムであってもよい。 The base film concerning this invention is a film used as the support body of the transparent laminated body film obtained by this invention, Comprising: It is a transparent film by which the easy adhesion process was made | formed on both surfaces. Examples of such a base film include PET (polyethylene terephthalate), PEN (polyethylene naphthalate), PBT (polybutylene phthalate), COP (cycloolefin polymer), COC (cycloolefin copolymer), and PC (polycarbonate). And plastics such as acetate resin, acrylic resin, vinyl fluoride resin, polyamide, polyarylate, cellophane, polyethersulfone, norbornene resin. Among these plastics, PET, PEN, PBT, COP, COC, PC, and acrylic resins are preferable from the viewpoint of the transparency of the base film and the adhesion to the photocurable resin composition. These plastics can be used singly or in combination of two or more. Further, such a base film may be a single layer film made of these plastics, or may be a multilayer film in which these plastic films are combined.
また、このようなベースフィルムの波長５５０ｎｍにおける光透過率としては、８０％以上であることが好ましく、８５％以上であることがより好ましい。さらに、このようなベースフィルムの厚みは特に限定されないが、１０〜４００μｍの範囲内であることが好ましい。また、このようなベースフィルムは、表面形状が平坦性を有するものであってもよく、また透明性を阻害しない範囲において表面に凹凸加工が施されているものであってもよい。また、本発明にかかる易接着処理としては、光硬化性樹脂組成物との密着性を向上させることが可能な処理であればよく、特に限定されないが、例えば、コロナ放電処理、紫外線照射処理、プラズマ処理、プライマーコート等の表面処理及び表面加工が挙げられる。 Moreover, as a light transmittance in wavelength 550nm of such a base film, it is preferable that it is 80% or more, and it is more preferable that it is 85% or more. Furthermore, although the thickness of such a base film is not specifically limited, It is preferable to exist in the range of 10-400 micrometers. In addition, such a base film may have a flat surface shape, or may have an uneven surface as long as the transparency is not impaired. In addition, the easy adhesion treatment according to the present invention is not particularly limited as long as it is a treatment capable of improving the adhesion with the photocurable resin composition, and examples thereof include corona discharge treatment, ultraviolet irradiation treatment, Surface treatment and surface treatment such as plasma treatment and primer coating can be mentioned.
本発明にかかるカバーフィルムは、少なくとも一方の表面に易剥離処理がなされた透明なフィルムである。このようなカバーフィルムの材質としては、例えば、ＰＥＴ（ポリエチレンテレフタレート）、ＰＥＮ（ポリエチレンナフタレート）、ＰＢＴ（ポリブチレンフタレート）、ＰＣ（ポリカーボネート）、ポリプロピレン、ポリエチレン、アセテート系樹脂、アクリル系樹脂、フッ化ビニル系樹脂、ポリアミド、ポリアリレート、セロファン、ポリエーテルスルホン、ノルボルネン系樹脂等のプラスチックが挙げられる。これらのプラスチックの中でも、紫外線等の活性エネルギー線の透過性並びに酸素透過性の観点から、ＰＥＴ、ＰＥＮ、ＰＢＴが好ましい。これらのプラスチックは、１種を単独で又は２種以上を組み合わせて使用することができる。また、このようなカバーフィルムは、これらのプラスチックからなる単層フィルムであってもよく、これらのプラスチックからなるフィルムを組み合わせた多層フィルムであってもよい。 The cover film according to the present invention is a transparent film in which at least one surface is easily peeled. Examples of the material of such a cover film include PET (polyethylene terephthalate), PEN (polyethylene naphthalate), PBT (polybutylene phthalate), PC (polycarbonate), polypropylene, polyethylene, acetate resin, acrylic resin, fluorine resin, and the like. Examples thereof include plastics such as vinyl fluoride resin, polyamide, polyarylate, cellophane, polyethersulfone, and norbornene resin. Among these plastics, PET, PEN, and PBT are preferable from the viewpoints of transmittance of active energy rays such as ultraviolet rays and oxygen permeability. These plastics can be used singly or in combination of two or more. Further, such a cover film may be a single layer film made of these plastics, or may be a multilayer film in which films made of these plastics are combined.
また、このようなカバーフィルムの波長５５０ｎｍにおける光透過率としては、８０％以上であることが好ましく、８５％以上であることがより好ましい。さらに、このようなカバーフィルムの紫外線波長領域３５０ｎｍにおける光透過率としては、６０％以上であることが好ましく、７０％以上であることがより好ましい。また、このようなカバーフィルムの厚みは特に限定されないが、１０〜４００μｍの範囲内であることが好ましい。さらに、このようなカバーフィルムは、表面形状が平坦性を有するものであってもよく、また透明性を阻害しない範囲において表面に凹凸加工が施されているものであってもよい。また、本発明にかかる易剥離処理とは、光硬化性樹脂組成物との密着性を低下させ、カバーフィルムと硬化後の光硬化性樹脂組成物層との剥離を可能とする処理のことをいう。このような易剥離処理としては、例えば、カバーフィルムの表面にシリコーン系表面処理剤、フッ素系表面処理剤等を塗布する処理を採用することができる。 Moreover, as a light transmittance in wavelength 550nm of such a cover film, it is preferable that it is 80% or more, and it is more preferable that it is 85% or more. Furthermore, the light transmittance of the cover film in the ultraviolet wavelength region of 350 nm is preferably 60% or more, and more preferably 70% or more. Moreover, although the thickness of such a cover film is not specifically limited, It is preferable to exist in the range of 10-400 micrometers. Furthermore, such a cover film may have a flat surface shape, or may have an uneven surface as long as transparency is not hindered. Moreover, the easy peeling process concerning this invention is the process which reduces the adhesiveness with a photocurable resin composition, and enables peeling with the photocurable resin composition layer after a cover film and hardening. Say. As such an easy peeling process, the process which apply | coats a silicone type surface treating agent, a fluorine type surface treating agent, etc. to the surface of a cover film, for example is employable.
以上、本発明の透明積層体フィルムの製造方法に用いる光硬化性樹脂組成物、ベースフィルム及びカバーフィルムについて説明したが、以下、本発明の透明積層体フィルムの製造方法をより詳細に説明するために、図面を参照しながら、本発明の透明積層体フィルムの製造方法の一実施形態について説明する。なお、以下の説明及び図面中、同一又は相当する要素には同一の符号を付し、重複する説明は省略する。 As mentioned above, although the photocurable resin composition, the base film, and the cover film which were used for the manufacturing method of the transparent laminated body film of this invention were demonstrated, hereafter, in order to demonstrate the manufacturing method of the transparent laminated body film of this invention in detail. Next, an embodiment of the method for producing a transparent laminate film of the present invention will be described with reference to the drawings. In the following description and drawings, the same or corresponding elements are denoted by the same reference numerals, and duplicate descriptions are omitted.
図１は、本発明の透明積層体フィルムの製造方法の一実施形態を示す模式図である。先ず、図１に示す透明積層体フィルムの製造方法に用いる製造装置について説明する。このような製造装置は、塗布装置１と、回転ロール２と、ベースフィルムの巻き出し部３と、カバーフィルムの巻き出し部４と、他のカバーフィルムの巻き出し部５と、絞りロール６と、紫外線ランプ７と、巻き取り部８とを備えている。 Drawing 1 is a mimetic diagram showing one embodiment of a manufacturing method of a transparent layered product film of the present invention. First, the manufacturing apparatus used for the manufacturing method of the transparent laminated body film shown in FIG. 1 is demonstrated. Such a manufacturing apparatus includes a coating device 1, a rotating roll 2, a base film unwinding section 3, a cover film unwinding section 4, another cover film unwinding section 5, and a drawing roll 6. And an ultraviolet lamp 7 and a winding part 8.
塗布装置１としては、公知の塗布装置を適宜選択して使用することができる。また、塗布方式は、均一性及び塗工形状に優れた塗布方式であればよく特に限定されない。このような塗布方式としては、例えば、ダイコート、リップコート、グラビアコート、ロールコート、リバースコート、ナイフコート、ドクターコート、エクストルージョンコート、スライドコート、ワイヤーバーコート、押出コート等の公知の塗布方式を採用することができる。なお、このような塗布装置１においては、筋や異物の原因となるゲル状の付着物の発生を抑制するという観点から、塗布ヘッドには紫外線が当たらないようにすることが望ましい。また、回転ロール２は、塗布厚みの均一性の観点から、装置に固定されているものであることが必要である。このような回転ロール２としては、公知の回転ロールを適宜選択して使用することができる。さらに、絞りロール６は、少なくとも２以上のロールからなり、各種フィルムを圧着することができるものであることが必要である。このような絞りロール６としては、公知の回転ロールを適宜選択して使用することができる。 As the coating device 1, a known coating device can be appropriately selected and used. The coating method is not particularly limited as long as it is a coating method excellent in uniformity and coating shape. Examples of such coating methods include known coating methods such as die coating, lip coating, gravure coating, roll coating, reverse coating, knife coating, doctor coating, extrusion coating, slide coating, wire bar coating, and extrusion coating. Can be adopted. In such a coating apparatus 1, it is desirable that the coating head is not exposed to ultraviolet rays from the viewpoint of suppressing the generation of gel-like deposits that cause streaks and foreign matters. Moreover, the rotating roll 2 needs to be fixed to the apparatus from a viewpoint of the uniformity of application | coating thickness. As such a rotating roll 2, a known rotating roll can be appropriately selected and used. Furthermore, the squeezing roll 6 is composed of at least two or more rolls and is required to be capable of crimping various films. As such a squeeze roll 6, a known rotary roll can be appropriately selected and used.
紫外線ランプ７としては、例えば、メタルハライドランプ、高圧水銀ランプ、低圧水銀ランプ、パルス型キセノンランプ、キセノン／水銀混合ランプ、低圧殺菌ランプ、無電極ランプが挙げられる。これらの紫外線ランプの中でも、メタルハライドランプ又は高圧水銀ランプが好ましい。また、紫外線ランプ７には、光エネルギーを有効に利用するという観点から、楕円型、放物線型、拡散型等の反射板を取り付けることが好ましい。さらに、紫外線照射による熱の発生を抑制するという観点から、紫外線ランプ７に熱カットフィルターを装着してもよい。また、紫外線ランプ７は、照射箇所に冷却装置を有しているものであることが好ましい。このような冷却装置により、紫外線照射によって生じる熱によるベースフィルムやカバーフィルムの熱変形をより確実に抑制することができる。このような冷却装置の冷却方式としては、空冷方式、水冷方式等の公知の方法を採用することができる。 Examples of the ultraviolet lamp 7 include a metal halide lamp, a high-pressure mercury lamp, a low-pressure mercury lamp, a pulse type xenon lamp, a xenon / mercury mixed lamp, a low-pressure sterilization lamp, and an electrodeless lamp. Among these ultraviolet lamps, a metal halide lamp or a high-pressure mercury lamp is preferable. Moreover, it is preferable to attach an elliptical, parabolic, diffusive or the like reflector to the ultraviolet lamp 7 from the viewpoint of effectively using light energy. Furthermore, a heat cut filter may be attached to the ultraviolet lamp 7 from the viewpoint of suppressing the generation of heat due to ultraviolet irradiation. Moreover, it is preferable that the ultraviolet lamp 7 has a cooling device in an irradiation location. Such a cooling device can more reliably suppress thermal deformation of the base film and the cover film due to heat generated by ultraviolet irradiation. As a cooling method of such a cooling device, a known method such as an air cooling method or a water cooling method can be employed.
ベースフィルムの巻き出し部３、カバーフィルムの巻き出し部４及び他のカバーフィルムの巻き出し部５としては、ベースフィルムやカバーフィルムを所定の速度で供給できる装置であればよく、特に限定されない。また、巻き取り部８としては、積層されたフィルムを所定の速度で巻き取ることができる装置であればよく、特に限定されない。 The base film unwinding section 3, the cover film unwinding section 4 and the other cover film unwinding section 5 are not particularly limited as long as the apparatus can supply the base film and the cover film at a predetermined speed. The winding unit 8 is not particularly limited as long as it is a device capable of winding a laminated film at a predetermined speed.
次に、以上説明した製造装置を用いた本発明の透明積層体フィルムの製造方法の好適な一例を説明する。 Next, a suitable example of the manufacturing method of the transparent laminated body film of this invention using the manufacturing apparatus demonstrated above is demonstrated.
第１の工程においては、先ず、ベースフィルムの巻き出し部３からベースフィルム１１を巻き出す。ベースフィルム１１の供給速度は特に限定されないが、例えば、１〜２０ｍ／分の範囲とすることができる。そして、塗布装置１を用いて、ベースフィルム１１の一方の表面上に第１の光硬化性樹脂組成物をフィルム状に塗布して第１の塗膜１２を形成する。また、本発明においては、第１の光硬化性樹脂組成物を回転ロール２に保持された状態のベースフィルム１１に塗布することが好ましい。このようにベースフィルム１１が回転ロール２に保持された状態である場合には塗布面が動きにくいため、第１の光硬化性樹脂組成物の塗膜の塗布厚みをより均一にすることができる。また、塗布厚みは０．０１〜０．４ｍｍの範囲（より好ましくは、０．０２〜０．３ｍｍの範囲）となるようにすることが好ましい。塗布厚みが前記下限未満では、均一に塗布することが困難となる傾向にあり、他方、前記上限を超えると、樹脂の硬化収縮により、硬化品に変形不良が生じ易くなる傾向にある。 In the first step, first, the base film 11 is unwound from the unwinding portion 3 of the base film. Although the supply speed | rate of the base film 11 is not specifically limited, For example, it can be set as the range of 1-20 m / min. And using the coating device 1, the 1st photocurable resin composition is apply | coated to a film form on one surface of the base film 11, and the 1st coating film 12 is formed. Moreover, in this invention, it is preferable to apply | coat the 1st photocurable resin composition to the base film 11 of the state hold | maintained at the rotating roll 2. FIG. Thus, when the base film 11 is held by the rotary roll 2, the coating surface is difficult to move, so that the coating thickness of the coating film of the first photocurable resin composition can be made more uniform. . The coating thickness is preferably in the range of 0.01 to 0.4 mm (more preferably in the range of 0.02 to 0.3 mm). If the coating thickness is less than the lower limit, uniform application tends to be difficult. On the other hand, if the application thickness exceeds the upper limit, deformation of the cured product tends to occur due to curing shrinkage of the resin.
第２の工程においては、先ず、第１のカバーフィルムの巻き出し部４から第１のカバーフィルム１３を巻き出す。なお、第１のカバーフィルム１３の供給速度は、前記第１の工程におけるベースフィルムの供給速度に合わせて設定する。そして、絞りロール６において、第１の塗膜１２が形成されたベースフィルム１１と第１のカバーフィルム１３とを、第１の塗膜１２の表面と第１のカバーフィルム１３の易剥離処理がなされた表面とが接するようにして圧着すると同時に第１の塗膜１２の塗布厚みを均一化して片面塗膜付ベースフィルム２１を得る。本発明においては、このように圧着の際に塗布厚みの均一化を図っているため、光硬化性樹脂組成物の塗膜の塗布厚みを均一にすることができる。 In the second step, first, the first cover film 13 is unwound from the unwinding portion 4 of the first cover film. The supply speed of the first cover film 13 is set according to the supply speed of the base film in the first step. In the squeezing roll 6, the base film 11 on which the first coating film 12 is formed and the first cover film 13 are subjected to an easy peeling process between the surface of the first coating film 12 and the first cover film 13. At the same time, the base film 21 with a single-side coating film is obtained by uniformizing the coating thickness of the first coating film 12 so that the surface is in contact with the surface. In the present invention, the coating thickness of the photocurable resin composition can be made uniform because the coating thickness is made uniform during the pressure bonding in this way.
第３の工程においては、先ず、第２のカバーフィルムの巻き出し部５から第２のカバーフィルム１４を巻き出す。なお、第２のカバーフィルム１４の供給速度は、前記第１の工程におけるベースフィルム１１の供給速度に合わせて設定する。そして、塗布装置１を用いて、第２のカバーフィルム１４の易剥離処理がなされた表面上に第２の光硬化性樹脂組成物をフィルム状に塗布して第２の塗膜１５を形成する。また、本発明においては、第２の光硬化性樹脂組成物を回転ロール２に保持された状態の第２のカバーフィルム１４に塗布することが好ましい。このように第２のカバーフィルム１４が回転ロール２に保持された状態である場合には塗布面が動きにくいため、第１の光硬化性樹脂組成物の塗膜の塗布厚みをより均一にすることができる。また、塗布厚みは０．０１〜０．４ｍｍの範囲（より好ましくは、０．０２〜０．３ｍｍの範囲）となるようにすることが好ましい。塗布厚みが前記下限未満では、均一に塗布することが困難となる傾向にあり、他方、前記上限を超えると、樹脂の硬化収縮により、硬化品に変形不良が生じ易くなる傾向にある。 In the third step, first, the second cover film 14 is unwound from the unwinding portion 5 of the second cover film. The supply speed of the second cover film 14 is set according to the supply speed of the base film 11 in the first step. And using the coating device 1, the 2nd photocurable resin composition is apply | coated to a film form on the surface by which the easy peeling process of the 2nd cover film 14 was made, and the 2nd coating film 15 is formed. . Moreover, in this invention, it is preferable to apply | coat the 2nd photocurable resin composition to the 2nd cover film 14 of the state hold | maintained at the rotating roll 2. FIG. When the second cover film 14 is held by the rotary roll 2 in this way, the coating surface is difficult to move, so that the coating thickness of the coating film of the first photocurable resin composition is made more uniform. be able to. The coating thickness is preferably in the range of 0.01 to 0.4 mm (more preferably in the range of 0.02 to 0.3 mm). If the coating thickness is less than the lower limit, uniform application tends to be difficult. On the other hand, if the application thickness exceeds the upper limit, deformation of the cured product tends to occur due to curing shrinkage of the resin.
なお、本発明においては、塗布装置１の装置条件を適宜設定することができる。また、前記第１及び第２の光硬化性樹脂組成物としては同一のものを用いてもよく、また、樹脂組成や粘度等が異なるものを用いてもよい。そのため、本発明によれば、ベースフィルムの両面で異なる厚みの光硬化性樹脂層を形成することも容易であり、また、光硬化性樹脂層を形成するにあたり、粘度の異なる光硬化性樹脂組成物を用いることもできる。 In the present invention, the apparatus conditions of the coating apparatus 1 can be set as appropriate. Moreover, the same thing may be used as said 1st and 2nd photocurable resin composition, and the thing from which a resin composition, a viscosity, etc. differ may be used. Therefore, according to the present invention, it is easy to form photocurable resin layers having different thicknesses on both surfaces of the base film, and in forming the photocurable resin layer, photocurable resin compositions having different viscosities. Things can also be used.
第４の工程においては、絞りロール６において、第２の塗膜１５が形成された第２のカバーフィルム１４と前記第２の工程で得られた片面塗膜付ベースフィルム２１とを、前記カバーフィルムがそれぞれ外側になるようにして圧着すると同時に第２の塗膜１５の塗布厚みを均一化して両面塗膜付ベースフィルム２２を得る。本発明においては、このように圧着の際に塗布厚みの均一化を図っているため、光硬化性樹脂組成物の塗膜の塗布厚みをより均一にすることができる。しかも、本発明においては、このように一方の塗膜の塗布厚みを均一化した後に他方の塗膜の塗布厚みを均一化しているため、同時に両面の塗膜の塗布厚みを均一化する場合と比較して相乗的に塗布厚みを均一化することができる。 In the fourth step, in the squeezing roll 6, the second cover film 14 on which the second coating film 15 is formed and the base film 21 with the one-side coating film obtained in the second step are used as the cover. The base film 22 with a double-sided coating film is obtained by making the coating thickness of the second coating film 15 uniform while simultaneously pressing the films so that they are on the outside. In this invention, since application | coating thickness is equalized in the case of pressure bonding in this way, the application | coating thickness of the coating film of a photocurable resin composition can be made more uniform. In addition, in the present invention, since the coating thickness of the other coating film is uniformized after uniforming the coating thickness of one coating film in this way, In comparison, the coating thickness can be made synergistically uniform.
第５の工程においては、紫外線ランプ７を用いて、前記両面塗膜付ベースフィルム２２に紫外線を照射して前記光硬化性樹脂組成物を硬化せしめる。本発明においては、このように両面同時に紫外線を照射して光硬化性樹脂組成物を硬化せしめるため、光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することができる。また、本発明においては、紫外線を照射して光硬化性樹脂組成物を硬化せしめる際に、光硬化性樹脂組成物の塗膜が酸素透過率の小さいカバーフィルムに覆われているため、紫外線による硬化反応（ラジカル反応）における酸素阻害の影響が小さくなり効率よく反応が進行する。さらに、本発明においては、光硬化性樹脂組成物の塗膜を覆っているカバーフィルムにより光硬化性樹脂組成物の硬化収縮を抑制できるため、得られる透明積層体フィルムの変形を抑制することができる。なお、前記光硬化性樹脂組成物の塗膜の表面における酸素濃度を１％以下にすることが好ましく、０．１％以下にすることがより好ましい。 In the fifth step, the photocurable resin composition is cured by irradiating the base film 22 with a double-sided coating film with ultraviolet rays using an ultraviolet lamp 7. In the present invention, in order to cure the photocurable resin composition by simultaneously irradiating ultraviolet rays on both sides as described above, a transparent laminate film with sufficiently excellent uniformity of the curing reaction rate of the photocurable resin is efficiently produced. be able to. Further, in the present invention, when the photocurable resin composition is cured by irradiating ultraviolet rays, the coating film of the photocurable resin composition is covered with a cover film having a low oxygen transmission rate. The influence of oxygen inhibition in the curing reaction (radical reaction) is reduced, and the reaction proceeds efficiently. Furthermore, in this invention, since the shrinkage | contraction of a photocurable resin composition can be suppressed with the cover film which has covered the coating film of the photocurable resin composition, it can suppress a deformation | transformation of the transparent laminated body film obtained. it can. In addition, it is preferable to make oxygen concentration in the surface of the coating film of the said photocurable resin composition into 1% or less, and it is more preferable to set it as 0.1% or less.
また、紫外線の照射条件はそれぞれのランプの種類等によって異なるが、照射露光量は２０〜１００００ｍＪ／ｃｍ２の範囲であればよく、１００〜１００００ｍＪ／ｃｍ２範囲とすることが好ましい。 The irradiation condition of the ultraviolet ray depends on the type or the like of the respective lamp, but irradiation exposure may be in the range of 20~10000mJ / cm 2, it is preferable that the 100~10000mJ / cm 2 range.
以上説明したようにして前記ベースフィルムの両面に光硬化性樹脂層を形成した後に巻き取り部８にて得られた積層体を巻き取る。そして、このようにして得られた積層体から前記カバーフィルムを剥離して、ベースフィルムと、前記ベースフィルムの両面に積層された光硬化性樹脂層とを備える透明積層体フィルムを得ることができる。なお、このような透明積層体フィルムには、必要に応じて、その他の樹脂層を更に積層させてもよい。 As described above, after the photocurable resin layer is formed on both surfaces of the base film, the laminate obtained by the winding unit 8 is wound up. And the said cover film is peeled from the laminated body obtained in this way, and a transparent laminated body film provided with a base film and the photocurable resin layer laminated | stacked on both surfaces of the said base film can be obtained. . In addition, you may laminate | stack another resin layer further to such a transparent laminated body film as needed.
なお、このような製造装置の設置場所としては、異物混入等の懸念があるため、クリーンルーム内であることが好ましいが、異物混入等がないよう排気や吸気の環境に十分な配慮が成されていれば十分である。 The installation location of such a manufacturing apparatus is preferably in a clean room because there is a risk of contamination, etc., but sufficient consideration has been given to the exhaust and intake environment so that there is no contamination. Is sufficient.
以上、本発明の透明積層体フィルムを製造方法について一例を挙げて説明したが、本発明の透明積層体フィルムの製造方法は上記実施形態に限定されるものではない。例えば、ベースフィルム等の供給速度は上記実施形態において採用された速度に制限されず、本発明においては、塗布装置や露光ランプ等の性能に応じて適宜その供給速度を変更することができる。 As mentioned above, although an example was given and demonstrated about the manufacturing method of the transparent laminated body film of this invention, the manufacturing method of the transparent laminated body film of this invention is not limited to the said embodiment. For example, the supply speed of the base film or the like is not limited to the speed employed in the above embodiment, and in the present invention, the supply speed can be changed as appropriate according to the performance of the coating apparatus, the exposure lamp, and the like.
以下、実施例に基づいて本発明をより具体的に説明するが、本発明は以下の実施例に限定されるものではない。 EXAMPLES Hereinafter, although this invention is demonstrated more concretely based on an Example, this invention is not limited to a following example.
（実施例１）
図１に示すような製造装置を用いて透明積層体フィルムを製造した。すなわち、先ず、トリメチロールプロパントアクリレート（日本化薬社製、商品名「ＫＳ−ＴＭＰＡ」）８０部、メタクリル基含有フェニルシルセスキオキサンオリゴマー２０部、ヒドロキシシクロヘキシルフェニルケトン（チバ・スペシャルティ・ケミカルズ社製、商品名「ＩＲＧＡＣＵＲＥ １８４」）２．５部を均一に攪拌混合した後、脱泡して液状の光硬化性樹脂組成物を得た後、得られた液状の光硬化性樹脂組成物を第１及び第２の光硬化性樹脂組成物として塗布装置１へ投入した。
Example 1
The transparent laminated body film was manufactured using the manufacturing apparatus as shown in FIG. That is, first, 80 parts of trimethylol propantoacrylate (trade name “KS-TMPA” manufactured by Nippon Kayaku Co., Ltd.), 20 parts of a methacryl group-containing phenylsilsesquioxane oligomer, hydroxycyclohexyl phenyl ketone (Ciba Specialty Chemicals) Product, product name “IRGACURE 184”) 2.5 parts uniformly stirred and mixed, defoamed to obtain a liquid photocurable resin composition, and then the obtained liquid photocurable resin composition The first and second photocurable resin compositions were put into the coating apparatus 1.
次に、ベースフィルム巻き出し部３からベースフィルム１１〔材質：ＰＥＴ（ポリエチレンテレフタレートフィルム）、幅：３００ｍｍ、厚み：０．１ｍｍ、波長５５０ｎｍでの光透過率：９０％以上〕を１ｍ／分の供給速度で巻き出した。そして、塗布装置１（塗布方式：スロットダイコーター法）を用いて、ベースフィルム１１の一方の表面上に光硬化性樹脂組成物を回転ロール２上にてフィルム状に塗布して第１の塗膜１２を形成した。その後、第１のカバーフィルムの巻き出し部４からカバーフィルム１３〔材質：ＰＥＴ（ポリエチレンテレフタレートフィルム）、幅：３００ｍｍ、厚み：０．１ｍｍ、波長３５０ｎｍでの光透過率：７０％以上〕を１ｍ／分の供給速度で巻き出した。そして、絞りロール６において、第１の塗膜１２が形成されたベースフィルム１１と第１のカバーフィルム１３とを、第１の塗膜１２の表面とカバーフィルム１３の易剥離処理がなされた表面とが接するようにして圧着すると同時に第１の塗膜１２の塗布厚みを均一化して片面塗膜付ベースフィルム２１を得た。 Next, base film 11 [material: PET (polyethylene terephthalate film), width: 300 mm, thickness: 0.1 mm, light transmittance at wavelength 550 nm: 90% or more] from base film unwinding section 3 is 1 m / min. Unwinding at the feeding speed. Then, using the coating apparatus 1 (coating method: slot die coater method), the photocurable resin composition is applied on one surface of the base film 11 in the form of a film on the rotary roll 2 and the first coating is performed. A film 12 was formed. Thereafter, the cover film 13 [material: PET (polyethylene terephthalate film), width: 300 mm, thickness: 0.1 mm, light transmittance at a wavelength of 350 nm: 70% or more] is 1 m from the unwinding portion 4 of the first cover film. Unwinding was performed at a feeding rate of / min. In the squeezing roll 6, the base film 11 on which the first coating film 12 is formed and the first cover film 13 are subjected to the surface of the first coating film 12 and the surface of the cover film 13 which has been easily peeled off. The base film 21 with a single-sided coating film was obtained by making the coating thickness of the first coating film 12 uniform at the same time.
一方、第２のカバーフィルムの巻き出し部５から第２のカバーフィルム１４〔材質：ＰＥＴ（ポリエチレンテレフタレートフィルム）、幅：３００ｍｍ、厚み：０．１ｍｍ、波長３５０ｎｍでの光透過率：７０％以上〕を１ｍ／分の供給速度で巻き出した。そして、塗布装置１（塗布方式：スロットダイコーター法）を用いて、第２のカバーフィルム１４の易剥離処理がなされた表面上に光硬化性樹脂組成物を回転ロール２上にてフィルム状に塗布して第２の塗膜１５を形成した。その後、絞りロール６において、第２の塗膜１５が形成された第２のカバーフィルム１４と得られた片面塗膜付ベースフィルム２１とを、前記カバーフィルムがそれぞれ外側になるようにして圧着すると同時に第２の塗膜１５の塗布厚みを均一化して両面塗膜付ベースフィルム２２を得た。 On the other hand, from the second cover film unwinding portion 5 to the second cover film 14 [material: PET (polyethylene terephthalate film), width: 300 mm, thickness: 0.1 mm, light transmittance at a wavelength of 350 nm: 70% or more ] Was unwound at a feed rate of 1 m / min. Then, using the coating device 1 (coating method: slot die coater method), the photocurable resin composition is formed into a film on the rotary roll 2 on the surface of the second cover film 14 that has been easily peeled off. This was applied to form a second coating film 15. Thereafter, in the squeeze roll 6, when the second cover film 14 on which the second coating film 15 is formed and the obtained base film 21 with a single-side coating film are pressure-bonded so that the cover films are respectively on the outside. At the same time, the coating thickness of the second coating film 15 was made uniform to obtain a base film 22 with a double-sided coating film.
次いで、紫外線ランプ７としてメタルハライドランプを用い、照射露光量５００ｍＪ／ｃｍ２の条件で、得られた両面塗膜付ベースフィルム２２に紫外線を照射して前記光硬化性樹脂組成物を硬化せしめ、ベースフィルムの両面に光硬化性樹脂組成物層を形成した。その後、得られた積層体からカバーフィルムを剥離除去し、透明積層体フィルムを得た。得られた透明積層体フィルムは、「光硬化性樹脂組成物層（厚み：０．０５ｍｍ）−ベースフィルム（厚み：０．１ｍｍ）−光硬化性樹脂組成物層（厚み：０．０５ｍｍ）」の三層構造からなるものであった。また、得られた透明積層体フィルムにおいては、硬化後の光硬化性樹脂組成物層の厚みは十分に均一であることが確認された。さらに、ベースフィルムの両面に積層された光硬化性樹脂組成物層における光硬化性樹脂の硬化反応率をそれぞれ測定した結果は共に８８％であり、得られた透明積層体フィルムにおいては、光硬化性樹脂の硬化反応率も十分に均一であることが確認された。 Next, using a metal halide lamp as the ultraviolet lamp 7 and irradiating the obtained base film 22 with a double-sided coating film with ultraviolet rays under the condition of an irradiation exposure amount of 500 mJ / cm 2 , the photocurable resin composition is cured. A photocurable resin composition layer was formed on both sides of the film. Thereafter, the cover film was peeled off from the obtained laminate to obtain a transparent laminate film. The obtained transparent laminate film is “photocurable resin composition layer (thickness: 0.05 mm) −base film (thickness: 0.1 mm) −photocurable resin composition layer (thickness: 0.05 mm)”. The three-layer structure. Moreover, in the obtained transparent laminated body film, it was confirmed that the thickness of the photocurable resin composition layer after hardening is sufficiently uniform. Furthermore, the results of measuring the curing reaction rate of the photocurable resin in the photocurable resin composition layer laminated on both surfaces of the base film were both 88%, and the obtained transparent laminate film was photocured. It was confirmed that the curing reaction rate of the functional resin was sufficiently uniform.
以上説明したように、本発明によれば、透明なベースフィルムと、前記ベースフィルムの両面に積層された光硬化性樹脂層とを備える透明積層体フィルムの製造方法において、光硬化性樹脂層の厚みの均一性が十分に優れると共に光硬化性樹脂の硬化反応率の均一性が十分に優れる透明積層体フィルムを効率よく製造することが可能な透明積層体フィルムの製造方法を提供することが可能となる。 As described above, according to the present invention, in a method for producing a transparent laminate film comprising a transparent base film and a photocurable resin layer laminated on both surfaces of the base film, It is possible to provide a method for producing a transparent laminate film capable of efficiently producing a transparent laminate film having sufficiently excellent thickness uniformity and sufficiently excellent uniformity of the curing reaction rate of the photocurable resin. It becomes.
１…塗布装置、２…回転ロール、３…ベースフィルムの巻き出し部、４…第１のカバーフィルムの巻き出し部、５…第２のカバーフィルムの巻き出し部、６…絞りロール、７…紫外線ランプ、８…巻き取り部、１１…ベースフィルム、１２…第１の塗膜、１３…第１のカバーフィルム、１４…第２の塗膜、１５…第２のカバーフィルム、２１…片面塗膜付ベースフィルム、２２…両面塗膜付ベースフィルム。 DESCRIPTION OF SYMBOLS 1 ... Coating apparatus, 2 ... Rotating roll, 3 ... Unwinding part of base film, 4 ... Unwinding part of 1st cover film, 5 ... Unwinding part of 2nd cover film, 6 ... Drawing roll, 7 ... UV lamp, 8 ... winding portion, 11 ... base film, 12 ... first coating film, 13 ... first cover film, 14 ... second coating film, 15 ... second cover film, 21 ... single-sided coating Base film with membrane, 22 ... Base film with double-sided coating.
Claims (3)
前記第１の塗膜が形成されたベースフィルムと少なくとも一方の表面に易剥離処理がなされた透明な第１のカバーフィルムとを、前記第１の塗膜の表面と前記第１のカバーフィルムの易剥離処理がなされた表面とが接するようにして圧着すると同時に前記第１の塗膜の塗布厚みを均一化して片面塗膜付ベースフィルムを得る工程と、
第２のカバーフィルムの易剥離処理がなされた表面上に第２の光硬化性樹脂組成物を、塗布厚みが０．０１〜０．４ｍｍの範囲となるようにフィルム状に塗布して第２の塗膜を形成する工程と、
前記第２の塗膜が形成された第２のカバーフィルムと前記片面塗膜付ベースフィルムとを、前記カバーフィルムがそれぞれ外側になるようにして圧着すると同時に前記第２の塗膜の塗布厚みを均一化して両面塗膜付ベースフィルムを得る工程と、
前記両面塗膜付ベースフィルムに紫外線を照射して前記光硬化性樹脂組成物を硬化せしめる工程と、
を含むことを特徴とする透明積層体フィルムの製造方法。 The first photocurable resin composition is formed in a film shape so that the coating thickness is in the range of 0.01 to 0.4 mm on one surface of a transparent base film that has been subjected to easy adhesion treatment on both surfaces. Applying and forming a first coating;
A base film on which the first coating film is formed and a transparent first cover film on which at least one surface has been easily peeled, a surface of the first coating film and the first cover film A step of obtaining a base film with a single-side coating film by making the application thickness of the first coating film uniform at the same time with pressure-bonding so as to be in contact with the surface that has been subjected to an easy peeling treatment;
The second photocurable resin composition is applied in a film shape so that the coating thickness is in the range of 0.01 to 0.4 mm on the surface of the second cover film on which the easy peeling treatment has been performed. Forming a coating film of
The second cover film on which the second coating film is formed and the base film with a single-side coating film are pressure-bonded so that the cover films are on the outside, and at the same time, the coating thickness of the second coating film is set. A step of homogenizing to obtain a base film with a double-sided coating film;
Irradiating the base film with a double-sided coating film with ultraviolet rays to cure the photocurable resin composition;
A method for producing a transparent laminate film, comprising:
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011194647A (en) * | 2010-03-18 | 2011-10-06 | Nippon Steel Chem Co Ltd | Laminate film |
| WO2012086742A1 (en) * | 2010-12-24 | 2012-06-28 | 昭和電工株式会社 | Process for production of cured film, and cured film |
| JP2013006372A (en) * | 2011-06-24 | 2013-01-10 | Inoac Corp | Transparent resin molded body and method for manufacturing the same, and light guiding body using the same |
| CN105263687A (en) * | 2013-06-25 | 2016-01-20 | 昭和电工株式会社 | Method for producing and device for producing photocurable resin film |
| JP2018150513A (en) * | 2017-03-09 | 2018-09-27 | 協立化学産業株式会社 | Curable resin composition and method for producing processed film |
| JP2018203340A (en) * | 2017-06-05 | 2018-12-27 | 四国化工機株式会社 | Sterilization method of container |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996041831A1 (en) * | 1995-06-09 | 1996-12-27 | Mitsubishi Rayon Co., Ltd. | Molded resin articles having marproof organic hard coat layer and nonfogging organic hard coat layer, process for the production of the same, and coating materials therefor |
| JP2000297218A (en) * | 1999-04-13 | 2000-10-24 | Oji Paper Co Ltd | Electron radiation curing resin composition and composite sheet material produced by using the composition |
| JP2004322408A (en) * | 2003-04-23 | 2004-11-18 | Nitto Denko Corp | Method and apparatus for manufacturing optically reactive composition sheet |
| JP2006137036A (en) * | 2004-11-10 | 2006-06-01 | Nitto Denko Corp | Method and apparatus for manufacturing photopolymerization product sheet |
| JP2006306081A (en) * | 2005-03-31 | 2006-11-09 | Nippon Steel Chem Co Ltd | Method for producing transparent film |
-
2007
- 2007-11-22 JP JP2007302755A patent/JP4964748B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996041831A1 (en) * | 1995-06-09 | 1996-12-27 | Mitsubishi Rayon Co., Ltd. | Molded resin articles having marproof organic hard coat layer and nonfogging organic hard coat layer, process for the production of the same, and coating materials therefor |
| JP2000297218A (en) * | 1999-04-13 | 2000-10-24 | Oji Paper Co Ltd | Electron radiation curing resin composition and composite sheet material produced by using the composition |
| JP2004322408A (en) * | 2003-04-23 | 2004-11-18 | Nitto Denko Corp | Method and apparatus for manufacturing optically reactive composition sheet |
| JP2006137036A (en) * | 2004-11-10 | 2006-06-01 | Nitto Denko Corp | Method and apparatus for manufacturing photopolymerization product sheet |
| JP2006306081A (en) * | 2005-03-31 | 2006-11-09 | Nippon Steel Chem Co Ltd | Method for producing transparent film |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011194647A (en) * | 2010-03-18 | 2011-10-06 | Nippon Steel Chem Co Ltd | Laminate film |
| WO2012086742A1 (en) * | 2010-12-24 | 2012-06-28 | 昭和電工株式会社 | Process for production of cured film, and cured film |
| JP2013006372A (en) * | 2011-06-24 | 2013-01-10 | Inoac Corp | Transparent resin molded body and method for manufacturing the same, and light guiding body using the same |
| CN105263687A (en) * | 2013-06-25 | 2016-01-20 | 昭和电工株式会社 | Method for producing and device for producing photocurable resin film |
| JP2018150513A (en) * | 2017-03-09 | 2018-09-27 | 協立化学産業株式会社 | Curable resin composition and method for producing processed film |
| JP2018203340A (en) * | 2017-06-05 | 2018-12-27 | 四国化工機株式会社 | Sterilization method of container |
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