JPH05117841A - Vapor deposited for polyester film - Google Patents
Vapor deposited for polyester filmInfo
- Publication number
- JPH05117841A JPH05117841A JP3274266A JP27426691A JPH05117841A JP H05117841 A JPH05117841 A JP H05117841A JP 3274266 A JP3274266 A JP 3274266A JP 27426691 A JP27426691 A JP 27426691A JP H05117841 A JPH05117841 A JP H05117841A
- Authority
- JP
- Japan
- Prior art keywords
- polyester film
- film
- vapor
- polyurethane resin
- epoxy group
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Physical Vapour Deposition (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は蒸着ポリエステルフイル
ムに関し、更に詳しくは金属または金属酸化物の蒸着膜
との密着性、特に耐水密着性に優れた蒸着ポリエステル
フイルムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vapor-deposited polyester film, and more particularly to a vapor-deposited polyester film having excellent adhesion to a vapor-deposited film of a metal or a metal oxide, particularly excellent water-resistant adhesion.
【０００２】[0002]
【従来の技術】ポリエステルフイルムはポリオレフイン
フイルムに比べ金属蒸着膜との密着性に優れるが、高湿
下、特に水中での密着性が著しく低下するという欠点が
ある。密着性向上手段として従来、コロナ放電処理を施
す方法、低結晶性ポリエステルと高結晶性ポリエステル
とを混合する方法（特公昭64-10188号など）、あるいは
ウレタン樹脂、アクリル樹脂、共重合ポリエステル樹脂
などを蒸着下引層として形成させる方法などが提案され
ている。2. Description of the Related Art Polyester film is superior in adhesiveness to a vapor-deposited metal film as compared with polyolefin film, but has a drawback that the adhesiveness is remarkably lowered under high humidity, especially in water. Conventionally, a method of performing corona discharge treatment, a method of mixing a low crystalline polyester and a high crystalline polyester (such as JP-B-64-10188), a urethane resin, an acrylic resin, a copolyester resin, etc. Have been proposed as a vapor-deposited undercoat layer.
【０００３】[0003]
【発明が解決しようとする課題】しかし上記のような従
来に技術では、いずれの方法を用いても水中において蒸
着膜は容易に剥離し、実用価値のないものであった。例
えば蒸着ポリエステルフイルムを包装用として使用する
場合、蒸着面上に易接着層を介して各種フイルム、例え
ばヒ−トシ−ル性フイルムなどが積層され、製袋された
りするが、水中においてはポリエステルフイルムと蒸着
膜の界面で容易に剥離してしまうという欠点があった。However, in the above-mentioned conventional techniques, the vapor-deposited film was easily exfoliated in water regardless of which method was used, and it was of no practical value. For example, when a vapor-deposited polyester film is used for packaging, various films such as a heat-sealable film are laminated on the vapor-deposited surface via an easy-adhesion layer, and are made into bags, but in water, the polyester film is used. However, there is a drawback that it is easily peeled off at the interface of the vapor deposition film.
【０００４】本発明は従来の欠点、すなわち水中におい
ても蒸着膜が容易に剥離することなく充分実用に耐える
密着力を有する蒸着ポリエステルフイルムを提供するこ
とを目的とする。An object of the present invention is to provide a vapor-deposited polyester film which has a conventional defect, that is, the vapor-deposited film does not easily peel off even in water and has a sufficient adhesion for practical use.
【０００５】[0005]
【課題を解決するための手段】本発明は蒸着膜の下引層
としてポリエステルフイルム上に設ける塗膜層について
鋭意検討した結果、以下の構成を有する塗膜層を設ける
ことにより、水中においても蒸着膜の密着性が優れるこ
とを見出したものである。すなわち、ポリエステルフイ
ルムの少なくとも片面に、ポリウレタン樹脂とエポキシ
基含有化合物とを主成分とする混合物より形成された塗
膜層を設け、さらにその上に蒸着層を設けてなることを
特徴とする蒸着ポリエステルフイルムをその骨子とする
ものである。Means for Solving the Problems The present invention has conducted extensive studies on a coating film layer provided on a polyester film as an undercoat layer of a vapor deposition film, and as a result, by providing a coating film layer having the following constitution, vapor deposition in water is also possible. The inventors have found that the adhesion of the film is excellent. That is, a vapor-deposited polyester characterized in that a coating layer formed of a mixture containing a polyurethane resin and an epoxy group-containing compound as a main component is provided on at least one surface of a polyester film, and a vapor deposition layer is further provided thereon. The outline of the film is the film.
【０００６】本発明でいうポリエステルフイルムのポリ
エステルとはエステル結合を主鎖の主要な結合鎖とする
高分子の総称であるが、特に好ましいポリエステルとし
てはポリエチレンテレフタレ−ト、ポリエチレン２，６
−ナフタレ−ト、ポリブチレンテレフタレ−ト、ポリエ
チレンα、β−ビス（２−クロルフェノキシ）エタン
４，４´−ジカルボキシレ−トなどであり、これらの中
でも品質、経済性を総合的に勘案するとポリエチレンテ
レフタレ−トが最も好ましい。そのため以後はポリエチ
レンテレフタレ−ト（以後ＰＥＴと略称する）をポリエ
ステルの代表例として記述を進める。ＰＥＴとは８０モ
ル％以上、好ましくは９０モル％以上、更に好ましくは
９５モル％以上がエチレンテレフタレ−トを繰り返し単
位とするものであるが、この限界量範囲内で他のジカル
ボン酸成分、ジオ−ル成分を共重合しても良い。またこ
のＰＥＴ中に本発明の効果を阻害しない範囲内で公知の
添加剤、例えば耐熱安定剤、耐酸化安定剤、耐候安定
剤、紫外線吸収剤、有機の易滑剤、顔料、染料、有機ま
たは無機の微粒子、充填剤、核剤などを配合しても良
い。The polyester of the polyester film as used in the present invention is a general term for polymers having an ester bond as a main bonding chain of the main chain. Particularly preferred polyesters are polyethylene terephthalate, polyethylene 2,6.
-Naphthalate, polybutylene terephthalate, polyethylene α, β-bis (2-chlorophenoxy) ethane 4,4'-dicarboxylate and the like, among which, when comprehensively considering quality and economical efficiency Most preferred is polyethylene terephthalate. Therefore, polyethylene terephthalate (hereinafter abbreviated as PET) will be described below as a typical example of polyester. With PET, 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, has ethylene terephthalate as a repeating unit, but other dicarboxylic acid components within this limit amount range, You may copolymerize a diol component. Known additives such as heat resistance stabilizers, oxidation resistance stabilizers, weather resistance stabilizers, UV absorbers, organic slippery agents, pigments, dyes, organic or inorganic agents are added to this PET within a range that does not impair the effects of the present invention. The fine particles, the filler, the nucleating agent, etc. may be blended.
【０００７】上述したＰＥＴフイルムの極限粘度（２５
℃オルソクロロフェノ−ル中で測定）は０．４０〜１．
２０ｄｌ／ｇ、好ましくは０．５０〜０．８０ｄｌ／ｇ
の範囲にあるものが本発明の内容に適したものである。The intrinsic viscosity of the PET film described above (25
C. orthochlorophenol) 0.40 to 1.
20 dl / g, preferably 0.50 to 0.80 dl / g
Those within the range are suitable for the content of the present invention.
【０００８】上記ＰＥＴを使用したＰＥＴフイルムは塗
膜層が積層された状態においては二軸配向されたものが
好ましく、二軸配向ＰＥＴフイルムとは、無延伸状態の
ＰＥＴシ−トまたはフイルムを長手方向および幅方向に
各々２．５〜５倍程度延伸されて作られるものであり、
広角Ｘ線回折で二軸配向のパタ−ンを示すものをいう。The PET film using the above PET is preferably biaxially oriented in the state where the coating layers are laminated, and the biaxially oriented PET film is a PET sheet or film in the unstretched state. It is made by stretching about 2.5 to 5 times in each of the width direction and the width direction,
Wide angle X-ray diffraction indicates a biaxially oriented pattern.
【０００９】ＰＥＴフイルムの厚みは特に限定されるも
のではなく、用途に応じて任意に選べば良い。The thickness of the PET film is not particularly limited and may be arbitrarily selected according to the application.
【００１０】本発明は蒸着膜を設ける側のポリエステル
フイルム上にポリウレタン樹脂とエポキシ基含有化合物
を主成分とした混合物より形成された塗膜層を設けるこ
とを特徴とするが、ここで主成分とは塗膜層中において
該成分より成る部分が６０重量％以上、好ましくは８０
重量％以上、更に好ましくは９０重量％以上であること
をいう。またポリウレタン樹脂とは主鎖あるいは側鎖に
ウレタン結合を有するものであれば特に限定するもので
はなく、従来公知のウレタン樹脂より任意に選ぶことが
できる。本発明においては塗膜層は２軸配向ポリエステ
ルフイルム上に塗布しても良いが、工程中のゴミなどの
付着による蒸着膜のピンホ−ルを防止する点、あるいは
均一に薄く塗膜層を形成させるためには、結晶配向が完
了する前のポリエステルフイルム上に塗布し、乾燥、延
伸、熱処理を施し結晶配向を完了させる方法、すなわち
２軸配向ポリエステルフイルム製造工程中で形成させる
のがより好ましい。この方法によって塗膜を形成させる
場合には装置の防爆性、環境汚染などの点で有利な水性
樹脂を用いるのが好ましく、上記ウレタン樹脂も水性ポ
リウレタンを用いるのが好ましい。ポリウレタンの水性
化は従来公知の方法によって製造されたものであれば任
意に使用することができるが、好ましくは界面活性剤を
用いず水に分散させたもの（自己乳化型ポリウレタン）
が好ましい。特に好ましい例としては水性ポリウレタン
樹脂において末端イソシアネ−ト基がブロック剤によっ
てマスキングされたものが好適である。ブロック剤とし
てはメチルアルコ−ル、εカプロラクタム、フェノ−
ル、メチルエチルケトオキシム、マロン酸ジメチルエス
テル、アセト酢酸エチル、重亜硫酸ナトリウムなどがあ
る。これらの中でも常温で安定で、かつ解離温度の低い
ものが好ましくメチルエチルケトオキソム、重亜硫酸ナ
トリウムでマスキングされたものが好適である。The present invention is characterized in that a coating layer formed of a mixture containing a polyurethane resin and an epoxy group-containing compound as a main component is provided on the polyester film on the side where the vapor deposition film is provided. Is 60% by weight or more, preferably 80% by weight in the coating layer.
It means that the content is at least wt%, more preferably at least 90 wt%. The polyurethane resin is not particularly limited as long as it has a urethane bond in the main chain or side chain, and can be arbitrarily selected from conventionally known urethane resins. In the present invention, the coating layer may be coated on a biaxially oriented polyester film, but it is necessary to prevent pinholes in the vapor-deposited film due to adhesion of dust during the process, or to form a uniformly thin coating layer. In order to do so, it is more preferable to apply it on the polyester film before completion of the crystal orientation, dry, stretch and heat-treat to complete the crystal orientation, that is, to form it in the biaxially oriented polyester film manufacturing process. When the coating film is formed by this method, it is preferable to use an aqueous resin which is advantageous in terms of the explosion-proof property of the apparatus and environmental pollution, and it is also preferable to use an aqueous polyurethane as the urethane resin. Any water-soluble polyurethane can be used as long as it is manufactured by a conventionally known method, but preferably it is dispersed in water without using a surfactant (self-emulsifying polyurethane).
Is preferred. A particularly preferred example is an aqueous polyurethane resin in which the terminal isocyanate group is masked by a blocking agent. Blocking agents include methyl alcohol, ε-caprolactam, phenol
, Methyl ethyl ketoxime, malonic acid dimethyl ester, ethyl acetoacetate, sodium bisulfite and the like. Among these, those which are stable at room temperature and have a low dissociation temperature are preferable, and those masked with methyl ethyl ketoxoxime or sodium bisulfite are preferable.
【００１１】次に塗膜層形成のもう一方の成分であるエ
ポキシ基含有化合物とは分子内に１個以上のエポキシ基
を有するものであれば任意に選ぶことができるが上記ポ
リウレタンと混合し塗膜を形成させた時に充分な透明性
を有するものが好ましく更に上記理由から水性エポキシ
が特に好ましい。このような化合物として有機官能基と
してエポキシ基を有するシランカップリング剤が好まし
く、酸触媒によって加水分解後、ポリウレタン樹脂と混
合して用いる。Next, the epoxy group-containing compound which is the other component for forming the coating layer can be arbitrarily selected as long as it has one or more epoxy groups in the molecule, but it is mixed with the above polyurethane and coated. Those having sufficient transparency when the film is formed are preferable, and aqueous epoxy is particularly preferable for the above reasons. As such a compound, a silane coupling agent having an epoxy group as an organic functional group is preferable, which is used after being mixed with a polyurethane resin after being hydrolyzed by an acid catalyst.
【００１２】ポリウレタン樹脂（Ａ）とエポキシ基含有
化合物（Ｂ）は任意の比率で混合して塗布されるが好ま
しくは（Ａ）／（Ｂ）が重量比で１０００／１〜１／９
９、より好ましくは１００／１〜１０／９０、更に好ま
しくは９５／５〜３０／７０であるのが望ましい。ウレ
タン樹脂を含まない場合、エポキシ基含有化合物を含ま
ない場合には水中における蒸着膜との密着性が不足す
る。塗膜層の厚みは特に限定しないが通常は１μｍ以下
０．００５μｍ以上、好ましくは０．３μｍ以下０．０
３μｍ以上、、更に好ましくは０．２μｍ以下０．０５
μｍ以上であるのが望ましい。塗布厚みが厚過ぎると蒸
着膜が白化して光沢が低下したりする場合があり、薄す
ぎると水中での密着性が劣る場合がある。該塗膜層は上
記ように２軸配向ポリエステルフイルム製造工程中で塗
布されるのが好ましく、この方法によって塗膜を積層し
た場合には蒸着膜との密着性、塗膜の光沢とも優れてお
り、特に好ましい。また該塗膜中には本発明の効果を阻
害しない範囲内で各種の添加剤、例えば無機、有機の粒
子、滑剤、帯電防止剤、耐候剤、耐熱剤、染料、顔料な
どが添加されても良い。The polyurethane resin (A) and the epoxy group-containing compound (B) are mixed and coated at an arbitrary ratio, but (A) / (B) is preferably 1000/1 to 1/9 by weight ratio.
9, more preferably 100/1 to 10/90, further preferably 95/5 to 30/70. When the urethane resin is not contained or when the epoxy group-containing compound is not contained, the adhesion to the vapor deposition film in water is insufficient. The thickness of the coating layer is not particularly limited, but is usually 1 μm or less and 0.005 μm or more, preferably 0.3 μm or less 0.0
3 μm or more, more preferably 0.2 μm or less 0.05
It is preferably at least μm. If the coating thickness is too thick, the vapor-deposited film may be whitened to lower the gloss, and if it is too thin, the adhesion in water may be poor. The coating layer is preferably applied in the biaxially oriented polyester film manufacturing process as described above, and when the coating films are laminated by this method, the adhesion to the vapor deposition film and the gloss of the coating film are excellent. , Particularly preferred. In addition, various additives such as inorganic and organic particles, lubricants, antistatic agents, weathering agents, heat-resistant agents, dyes, pigments, etc. may be added to the coating film within a range that does not impair the effects of the present invention. good.
【００１３】上記塗膜層の上には公知の蒸着法によって
金属膜あるいは金属酸化物膜が設けられるが蒸着される
金属としては金、銀、アルミニウム、パラジウム、ニッ
ケル、コバルト、亜鉛、スズ、チタン、インジウムなど
の単独、あるいは混合、およびその酸化物などが挙げら
れる。A metal film or a metal oxide film is provided on the coating layer by a known vapor deposition method. The metals to be vapor deposited are gold, silver, aluminum, palladium, nickel, cobalt, zinc, tin and titanium. , Indium and the like, or a mixture thereof, and oxides thereof.
【００１４】次に本発明の製造方法について説明するが
かならずしもこれに限定されるものではない。Next, the manufacturing method of the present invention will be described, but the manufacturing method is not limited thereto.
【００１５】重合工程で析出した、いわゆる析出粒子と
無機粒子（例えば平均粒子径１μｍのシリカ粒子）を含
有する極限粘度０．６３ｄｌ／ｇのＰＥＴを常法に従っ
て乾燥後、溶融押出し、押出されたシ−ト状溶融体を冷
却ドラム上で冷却固化せしめて無配向ＰＥＴフイルムを
作成する。このフイルムを８０℃〜１２０℃に加熱しつ
つ長手方向に２．０〜５．０倍に延伸して１軸配向ＰＥ
Ｔフイルムを得る。このフイルムの一方の面にコロナ放
電処理を施し、その処理面に水性ポリウレタン樹脂とエ
ポキシ基含有シランカップリング剤加水分解物の混合水
系塗剤を所定厚みになるように塗布する。塗布の方法は
特に限定せず、ロッドコ−タ−、グラビアコ−タ−、リ
バ−スコ−タ−、ロ−ルコ−タ−など任意の方法で行な
うことができる。この塗布されたフイルムをクリップで
把持しつつ９０〜１４０℃に加熱されたテンタ−内に導
き、乾燥後あるいは乾燥しつつ幅方向に２．５〜５．０
倍に延伸し、連続的に１６０℃〜２５０℃の熱処理ゾ−
ン中で１〜１０秒間の熱処理を施す。この熱処理中に必
要の応じて３〜１２％の弛緩処理を施しても良い。かく
して得られた積層ポリエステルフイルムの塗膜層上に真
空蒸着機を用いて金属または金属酸化物を蒸着し、蒸着
ポリエステルフイルムを得る。PET having an intrinsic viscosity of 0.63 dl / g, which contains so-called precipitated particles and inorganic particles (for example, silica particles having an average particle diameter of 1 μm), which was precipitated in the polymerization step, was dried, melt-extruded and extruded by a conventional method. The sheet-like melt is cooled and solidified on a cooling drum to prepare a non-oriented PET film. This film is heated to 80 ° C. to 120 ° C. and stretched 2.0 to 5.0 times in the longitudinal direction to form a uniaxially oriented PE film.
Get the T film. One surface of this film is subjected to corona discharge treatment, and the treated surface is coated with an aqueous polyurethane resin and a mixed water-based coating material of a hydrolyzate of an epoxy group-containing silane coupling agent to a predetermined thickness. The coating method is not particularly limited, and any method such as a rod coater, a gravure coater, a river coater, and a roll coater can be used. While holding this coated film with a clip, introduce it into a tenter heated to 90 to 140 ° C., and after drying or while drying, 2.5 to 5.0 in the width direction.
Double stretching and continuous heat treatment at 160 ° C-250 ° C
Heat treatment is performed in the oven for 1 to 10 seconds. During this heat treatment, a relaxation treatment of 3 to 12% may be performed if necessary. A metal or metal oxide is vapor-deposited on the coating layer of the thus obtained laminated polyester film by using a vacuum vapor deposition machine to obtain a vapor-deposited polyester film.
【００１６】このような蒸着ポリエステルフイルムは蒸
着面にポリエチレン、ポリプロピレン、アイオノマ、ナ
イロン、ポリエステルなどのフイルムあるいは粘着層な
どを積層して使用される。Such a vapor-deposited polyester film is used by laminating a film such as polyethylene, polypropylene, ionomer, nylon or polyester, or an adhesive layer on the vapor-deposited surface.
【００１７】[0017]
【特性の測定方法および効果の評価方法】本発明におけ
る特性の測定方法および効果の評価方法は次のとおりで
ある。[Characteristic Measuring Method and Effect Evaluation Method] The characteristic measuring method and effect evaluating method in the present invention are as follows.
【００１８】（１）蒸着膜密着力 Ａｌ金属を電子ビ−ム加熱式蒸着機を用いて、蒸着厚み
が４００〜５００オングストロームになるように蒸着
し、ついでポリウレタン系接着剤を用いて未延伸ポリプ
ロピレンフイルム（ＣＰＰ）（東レ合成フイルム（株）
製Ｔ３５０１，５０μｍ厚）を貼り合わせ、４０℃で４
８時間放置後１５ｍｍ幅に切断してＣＰＰと蒸着膜のＴ
字剥離をテンシロンを用いて剥離速度１０ｃｍ／分で行
なった。剥離はドライ（２５℃５０％ＲＨ雰囲気下）と
耐水密着性（剥離界面に水を滴下して剥離）で評価し
た。(1) Adhesion strength of vapor-deposited film Al metal was vapor-deposited using an electron beam heating vapor deposition machine so as to have a vapor deposition thickness of 400 to 500 angstrom, and then unstretched polypropylene using a polyurethane adhesive. Film (CPP) (Toray Synthetic Film Co., Ltd.)
Made T3501, 50 μm thick) and stuck at 40 ° C for 4
After leaving it for 8 hours, it is cut into 15 mm width and CPP and T of the deposited film are cut.
The character peeling was performed using Tensilon at a peeling speed of 10 cm / min. Peeling was evaluated by dryness (25 ° C., 50% RH atmosphere) and water-resistant adhesion (peeling by dropping water on the peeling interface).
【００１９】（２）蒸着面の光沢度 ＪＩＳ−Ｚ８７４１（６０゜−６０゜）に準じて蒸着面
の光沢度を測定した。(2) Degree of gloss of vapor deposition surface The degree of gloss of the vapor deposition surface was measured according to JIS-Z8741 (60 ° -60 °).
【００２０】（３）塗膜厚み 蒸着フイルムの断面を切り出し、１０万倍の電子顕微鏡
観察写真より実測した。厚みは１視野内での平均厚みと
し、測定点３０点の平均厚みを塗膜厚みとした。(3) Coating Film Thickness A cross section of the vapor deposition film was cut out and measured from a 100,000 times electron microscopic observation photograph. The thickness was the average thickness within one visual field, and the average thickness at 30 measurement points was the coating film thickness.
【００２１】[0021]
【実施例】次に本発明を実施例に基ずいて説明するが必
ずしもこれに限定されるものではない。EXAMPLES Next, the present invention will be explained based on examples, but the present invention is not necessarily limited to these.
【００２２】実施例１ 粒子径０．５〜１．５μｍの析出粒子（重合工程中で析
出した粒子を０．１５重量％、および粒子径１．０μｍ
のシリカ粒子を０．１重量％含有するＰＥＴペレット
（極限粘度０．６３ｄｌ／ｇ）を充分に真空乾燥した
後、押出機に供給して２８０℃で溶融押出し、１０μｍ
カットの金属焼結フイルタ−で濾過した後、Ｔ字型口金
よりシ−ト状に押出し、これを表面温度３０℃の冷却ド
ラムに巻き付けて冷却固化せしめた。この間のシ−トと
冷却ドラム表面との密着性を向上させるため、シ−ト側
にワイヤ電極を配置して６０００Ｖの直流電圧を印加し
た。かくして得られた未延伸ＰＥＴフイルムを９５℃に
加熱して長手方向に３．５倍延伸し、１軸延伸フイルム
とした。このフイルムの片面に空気中でコロナ放電処理
を施し、以下の調合塗料をロッドコ−タ−で放電処理面
側に塗布した。塗布厚みは結晶配向完了後において０．
１μｍとなるようにした。Example 1 Precipitated particles having a particle size of 0.5 to 1.5 μm (0.15 wt% of particles precipitated in the polymerization step, and a particle size of 1.0 μm)
PET pellets containing 0.1% by weight of silica particles (intrinsic viscosity 0.63 dl / g) were sufficiently vacuum dried, then fed to an extruder and melt-extruded at 280 ° C., 10 μm
After being filtered with a cut metal sintered filter, it was extruded in a sheet form from a T-shaped die and wound around a cooling drum having a surface temperature of 30 ° C. to be cooled and solidified. In order to improve the adhesion between the sheet and the surface of the cooling drum during this period, a wire electrode was arranged on the sheet side and a DC voltage of 6000 V was applied. The unstretched PET film thus obtained was heated to 95 ° C. and stretched 3.5 times in the longitudinal direction to obtain a uniaxially stretched film. One side of this film was subjected to corona discharge treatment in air, and the following formulation paint was applied to the discharge treated surface side with a rod coater. The coating thickness is 0 after completion of crystal orientation.
It was set to 1 μm.
【００２３】[0023]
・末端イソシアネ−ト基がマスキングされた水分散型ポ
リウレタン樹脂（エラストロンＨ３８（第一工業製薬
（株）製）） … ９０重量部 ・γ−グリシドキシプロピルトリメトキシシランを常法
によりＰＨ３〜５の酸性水溶液中で加水分解したもの
… １０重量部 上記固形分比率で混合した塗液を水で希釈して３重量％
の調合液を作成した。Water-dispersible polyurethane resin having a terminal isocyanate group masked (Elastron H38 (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)) ... 90 parts by weight. Γ-glycidoxypropyltrimethoxysilane PH3-5 by a conventional method. Hydrolyzed in acidic aqueous solution
10 parts by weight 3% by weight of a coating liquid mixed with the above solid content ratio diluted with water
Was prepared.
【００２４】塗布された１軸延伸ＰＥＴフイルムをクリ
ップで把持して１１０℃に加熱されたテンタ−内に導き
水分を乾燥させた後、連続的に１２０℃に加熱されたゾ
−ンで幅方向に３．５倍延伸し、更に２２５℃の雰囲気
下で５秒間の熱処理を施し、フイルム厚み１２μｍ、塗
膜層厚み０．１μｍの積層ポリエステルフイルムを得
た。このフイルムの塗膜層側に電子ビ−ム加熱型真空蒸
着機を使用してＡｌ金属を４００〜５００オングストロ
ーム厚みに蒸着し、蒸着ポリエステルフイルムを得た。
この蒸着ポリエステルフイルムは表１に示すとおり、極
めて光沢に優れ、かつドライでの密着性、耐水密着性と
も良好であった。The coated uniaxially stretched PET film was gripped with a clip, introduced into a tenter heated to 110 ° C. to dry the water, and then continuously dried in a width direction with a zone heated to 120 ° C. Was stretched 3.5 times and further heat-treated in an atmosphere of 225 ° C. for 5 seconds to obtain a laminated polyester film having a film thickness of 12 μm and a coating layer thickness of 0.1 μm. Al metal was vapor-deposited on the coating layer side of this film to a thickness of 400 to 500 angstrom using an electron beam heating type vacuum vapor deposition machine to obtain a vapor deposited polyester film.
As shown in Table 1, this vapor-deposited polyester film was extremely excellent in gloss, and had good dry adhesion and water-resistant adhesion.
【００２５】実施例２〜５、比較例１〜２ 実施例１のポリウレタン樹脂、エポキシ基含有化合物の
配合比率を変更した以外は同様にして蒸着ポリエステル
フイルムを作成した。２成分が混合された組成より形成
された塗膜上に設けられた蒸着膜はいずれも密着性に優
れたものであったが、いずれか一方のみで形成した塗膜
上に設けられた蒸着膜は耐水密着性が著しく劣るもので
あった。Examples 2 to 5 and Comparative Examples 1 to 2 Vapor-deposited polyester films were prepared in the same manner except that the mixing ratio of the polyurethane resin and the epoxy group-containing compound of Example 1 was changed. The vapor-deposited films formed on the coating film formed of the composition in which the two components were mixed all had excellent adhesion, but the vapor-deposition film formed on the coating film formed by only one of them. The water resistance was significantly poor.
【００２６】比較例３〜４ ２軸配向ＰＥＴフイルムおよび空気中でコロナ放電処理
を施した２軸配向ＰＥＴフイルム上にＡｌ金属を蒸着し
て作成した蒸着ポリエステルフイルムは表１のとおり耐
水密着性がまったくなく容易にＰＥＴ／Ａｌ界面から剥
離した。Comparative Examples 3 to 4 The vapor-deposited polyester film prepared by vapor-depositing Al metal on a biaxially oriented PET film and a biaxially oriented PET film subjected to corona discharge treatment in air has water-proof adhesion as shown in Table 1. It peeled off from the PET / Al interface easily without any.
【００２７】比較例５〜６ 実施例１のエポキシ化合物に代えてγ−（２−アミノエ
チル）アミノプロピルトリメトキシシランを（比較例
５）、あるいは実施例１のウレタン樹脂に代えて水分散
性アクリル樹脂を（比較例６）それぞれ使用した以外は
同様にして蒸着ポリエステルフイルムを作成したが、こ
れらはいずれも耐水密着性が著しくおとるものであっ
た。Comparative Examples 5 to 6 γ- (2-aminoethyl) aminopropyltrimethoxysilane was used instead of the epoxy compound of Example 1 (Comparative Example 5), or the urethane resin of Example 1 was replaced with water dispersibility. Vapor-deposited polyester films were prepared in the same manner except that an acrylic resin was used (Comparative Example 6). However, all of them had remarkably excellent water-resistant adhesion.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【発明の効果】本発明はポリエステルフイルムに金属お
よび金属酸化物の蒸着膜を設けるにあたり下引層として
ポリウレタン樹脂とエポキシ基含有化合物との混合物を
主成分として形成された塗膜層を設けることにより、蒸
着膜の耐水密着性が飛躍的に改良されることを見出した
ものである。According to the present invention, when a vapor-deposited film of a metal and a metal oxide is provided on a polyester film, a coating layer formed mainly of a mixture of a polyurethane resin and an epoxy group-containing compound is provided as an undercoat layer. The inventors have found that the water resistant adhesion of the vapor deposited film is dramatically improved.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０８Ｌ 63/00 ＮＪＶ 8416−4Ｊ Ｃ２３Ｃ 14/02 8520−4Ｋ // Ｃ０８Ｌ 63:00 8416−4Ｊ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location C08L 63/00 NJV 8416-4J C23C 14/02 8520-4K // C08L 63:00 8416-4J
Claims (6)
に、ポリウレタン樹脂とエポキシ基含有化合物とを主成
分とする混合物より形成された塗膜層を設け、さらにそ
の上に蒸着層を設けてなることを特徴とする蒸着ポリエ
ステルフイルム。1. A coating film layer formed of a mixture containing a polyurethane resin and an epoxy group-containing compound as main components is provided on at least one side of a polyester film, and a vapor deposition layer is further provided thereon. Evaporated polyester film.
シランカップリング剤であることを特徴とする請求項１
に記載の蒸着ポリエステルフイルム。2. The epoxy group-containing compound is an epoxy group-containing silane coupling agent.
The vapor-deposited polyester film described in 1.
脂であることを特徴とする請求項１または２に記載の蒸
着ポリエステルフイルム。3. The vapor-deposited polyester film according to claim 1, wherein the polyurethane resin is an aqueous polyurethane resin.
ネ−ト基を含有する組成物であることを特徴とする請求
項１〜３のいずれかに記載の蒸着ポリエステルフイル
ム。4. The vapor-deposited polyester film according to claim 1, wherein the polyurethane resin is a composition containing a blocked isocyanate group.
有化合物（Ｂ）との混合重量比率（Ａ）／（Ｂ）が１０
００／１〜１／９９であることを特徴とする請求項１〜
４のいずれかに記載の蒸着ポリエステルフイルム。5. The mixing weight ratio (A) / (B) of the polyurethane resin (A) and the epoxy group-containing compound (B) is 10.
It is 00/1 to 1/99, It is characterized by the above-mentioned.
The vapor-deposited polyester film according to any one of 4 above.
フイルムに塗布され、塗布、乾燥後少なくとも１方向に
延伸、熱処理が施された層であることを特徴とする請求
項１〜５のいずれかに記載の蒸着ポリエステルフイル
ム。6. The coating film layer is a layer which is applied to a polyester film before completion of crystal orientation, applied, dried and stretched in at least one direction, and heat-treated. The vapor-deposited polyester film described in 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27426691A JP3158554B2 (en) | 1991-10-22 | 1991-10-22 | Evaporated polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27426691A JP3158554B2 (en) | 1991-10-22 | 1991-10-22 | Evaporated polyester film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05117841A true JPH05117841A (en) | 1993-05-14 |
| JP3158554B2 JP3158554B2 (en) | 2001-04-23 |
Family
ID=17539276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27426691A Expired - Fee Related JP3158554B2 (en) | 1991-10-22 | 1991-10-22 | Evaporated polyester film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3158554B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905174A3 (en) * | 1997-09-25 | 2000-01-12 | Mitsubishi Chemical Corporation | Deposited plastic film |
| KR100439625B1 (en) * | 1999-11-05 | 2004-07-12 | 에스케이씨 주식회사 | Polyester film formed primer layer and producing method therefor |
| KR100441159B1 (en) * | 1999-02-01 | 2004-07-21 | 에스케이씨 주식회사 | Release film |
| JP2007048944A (en) * | 2005-08-10 | 2007-02-22 | Toppan Printing Co Ltd | Solar cell back sealing sheet |
| JP2008023849A (en) * | 2006-07-21 | 2008-02-07 | Dainippon Printing Co Ltd | Transparent gas-barrier packaging material and its manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129502B2 (en) * | 1971-07-01 | 1976-08-26 | ||
| JPS5236102B1 (en) * | 1971-04-30 | 1977-09-13 | ||
| JPS5248937B2 (en) * | 1971-09-23 | 1977-12-13 | ||
| JPS642520B2 (en) * | 1979-09-29 | 1989-01-17 | Toppan Printing Co Ltd | |
| JPH0250837A (en) * | 1988-08-12 | 1990-02-20 | Toyobo Co Ltd | Vapor deposited polyester film |
| JPH0363127A (en) * | 1989-08-02 | 1991-03-19 | Oike Ind Co Ltd | Transparent high-barrier plastic film |
| JPH04176858A (en) * | 1990-11-08 | 1992-06-24 | Diafoil Co Ltd | Metal-deposited polyester film |
-
1991
- 1991-10-22 JP JP27426691A patent/JP3158554B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236102B1 (en) * | 1971-04-30 | 1977-09-13 | ||
| JPS5129502B2 (en) * | 1971-07-01 | 1976-08-26 | ||
| JPS5248937B2 (en) * | 1971-09-23 | 1977-12-13 | ||
| JPS642520B2 (en) * | 1979-09-29 | 1989-01-17 | Toppan Printing Co Ltd | |
| JPH0250837A (en) * | 1988-08-12 | 1990-02-20 | Toyobo Co Ltd | Vapor deposited polyester film |
| JPH0363127A (en) * | 1989-08-02 | 1991-03-19 | Oike Ind Co Ltd | Transparent high-barrier plastic film |
| JPH04176858A (en) * | 1990-11-08 | 1992-06-24 | Diafoil Co Ltd | Metal-deposited polyester film |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905174A3 (en) * | 1997-09-25 | 2000-01-12 | Mitsubishi Chemical Corporation | Deposited plastic film |
| KR100441159B1 (en) * | 1999-02-01 | 2004-07-21 | 에스케이씨 주식회사 | Release film |
| KR100439625B1 (en) * | 1999-11-05 | 2004-07-12 | 에스케이씨 주식회사 | Polyester film formed primer layer and producing method therefor |
| JP2007048944A (en) * | 2005-08-10 | 2007-02-22 | Toppan Printing Co Ltd | Solar cell back sealing sheet |
| JP2008023849A (en) * | 2006-07-21 | 2008-02-07 | Dainippon Printing Co Ltd | Transparent gas-barrier packaging material and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3158554B2 (en) | 2001-04-23 |
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