JPS61235148A - Transparent polyester film - Google Patents
Transparent polyester filmInfo
- Publication number
- JPS61235148A JPS61235148A JP7804085A JP7804085A JPS61235148A JP S61235148 A JPS61235148 A JP S61235148A JP 7804085 A JP7804085 A JP 7804085A JP 7804085 A JP7804085 A JP 7804085A JP S61235148 A JPS61235148 A JP S61235148A
- Authority
- JP
- Japan
- Prior art keywords
- polyester film
- film
- transparent polyester
- transparency
- whitening
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、白化防止剤層を有して透明性の維持性にすぐ
れる透明ポリエステルフィルムに関するものである。こ
れは、例えば液晶表示装置などに好ましく適用される。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a transparent polyester film having an anti-whitening agent layer and excellent in maintaining transparency. This is preferably applied to, for example, a liquid crystal display device.
従来の技術及び問題点 ポリエステルフィルムは、その良好な透明性。Conventional technology and problems Polyester film has good transparency.
機械的特性に基づき透明導電性フィルムや液晶デフスチ
ックセルにおける基板などとして光学関連分野で広く利
用されている。Based on its mechanical properties, it is widely used in optics-related fields as transparent conductive films and substrates for liquid crystal differential cells.
しかしながら、他方ではその透明維持性の点から用途に
限界があるという問題を有していた。すなわち１例えば
フィルムを低収ａ８：のものとするための高温加熱処理
（アニーリング）の際あるいいな場合、フィルム中のオ
リゴマのような低分子量分子や滑剤などが表面に析出し
、これがためにフィμムが白化してその透明性が低下す
るという重大な問題があった。この白化現象は、光学関
連分野で特に問題となる場合が多い。However, on the other hand, there is a problem in that there are limits to its use due to its ability to maintain transparency. In other words, 1. For example, in certain cases during high-temperature heat treatment (annealing) to make the film low-yield A8:, low molecular weight molecules such as oligomers and lubricants in the film precipitate on the surface, and this causes There was a serious problem that the film became white and its transparency decreased. This whitening phenomenon often poses a problem particularly in optical-related fields.
このため、従来よりポリエステルフィルムの透明性、耐
熱性２機械的特性など１７ｃ、ｉ？ける有利性を実質的
に保持し、かつ、と記した白化現象に伴う透明性の低下
がないポリエステルフィルムの提供が望まれていたが、
未だ満足できるものは提案されていない。For this reason, polyester films have traditionally been known for their transparency, heat resistance, mechanical properties, etc. 17c, i? It has been desired to provide a polyester film that substantially retains the advantages of whitening and does not have a decrease in transparency due to the whitening phenomenon mentioned above.
Nothing satisfactory has been proposed yet.
問題点を解決するための手段
かかる状況に鑑みて本発明者らは、上記の課題が克服さ
れたポリエステルフィルムを開発するために鋭意研究を
重ねた結果、その開発に成功し本発明をなすに至った。Means for Solving the Problems In view of the above circumstances, the inventors of the present invention have conducted intensive research to develop a polyester film that overcomes the above-mentioned problems. It's arrived.
すなわち、本発明は、白化防止剤層を付設してなる透明
ポリエステルフィルムを提供するものである。That is, the present invention provides a transparent polyester film provided with an anti-whitening agent layer.
本発明において用いられるポリエステルフィルムとして
は、例えばポリエチレンテレフタレート。Examples of the polyester film used in the present invention include polyethylene terephthalate.
ポリブチレンテレフタレートのような飽和ホリエステル
を成分とする単独成分系、共重合系、架橋系、混合系の
透明フィルムあるいはこれを一軸延伸し友ものなどをあ
げることができる。その厚さは２０〜５００μｍが一般
的であるがこれに限定さねない。なお、該フィルムは滑
剤等の各種の添加剤を含有するものであってもよい。Examples include single-component, copolymerized, crosslinked, and mixed transparent films containing saturated polyester such as polybutylene terephthalate, as well as uniaxially stretched transparent films. The thickness is generally 20 to 500 μm, but is not limited thereto. Note that the film may contain various additives such as a lubricant.
一方、白化防止剤としてはシランカップリング剤が好ま
しく用いられる。その具体的代表例としテハ、ビニルト
リクロロシラン、ビニルトリエトキシシフン、ビニルト
リス（β−メトキＶエトキシ）シラン、ｒ−グリシドキ
シグロビルトリメトキシシラン、ｒ−メタクリロキシプ
ロピルトリメトキシシラン、Ｎ−β（アミノエチ／Ｌ’
）γ−アミノプロピμメチルジメトキシシラン、γ−ク
ロロプロピ〜トリメトキシシラン、γ−メルカプトプロ
ピ〜トリメトキンシラン、ｒ−アミノプロピルトリエト
キシシランなどをあげることができる。On the other hand, as the anti-whitening agent, a silane coupling agent is preferably used. Specific representative examples include Teha, vinyltrichlorosilane, vinyltriethoxysilane, vinyltris(β-methoxyVethoxy)silane, r-glycidoxyglobyltrimethoxysilane, r-methacryloxypropyltrimethoxysilane, N-β (Aminoech/L'
) γ-aminopropyμmethyldimethoxysilane, γ-chloropropy-trimethoxysilane, γ-mercaptopropy-trimethoxysilane, r-aminopropyltriethoxysilane, and the like.
本発明の透明ポリエステルフィルムは、ポリエステルフ
ィルムの好ましくは両面に白化防止剤からなる層を、５
人〜８μｍ、好ましくは１００人〜１μｍの厚さに設け
たものである。層の厚さが５人未満では高温雰囲気下で
の白化を充分に防止しえないし、８μｍを超えると得ら
れるフィルムが屈曲性に劣って好ましくない。該層の形
成には、例えばスピナーコ−１・方式、バーコード方式
、ディクビングコート方式あるいはコーティングマシン
による方式など目的とするフィルムの用途に応じて適宜
なＮ膜形成方式を適用することができ、その形成方式に
特に限定はない。The transparent polyester film of the present invention preferably has 5 layers of an anti-whitening agent on both sides of the polyester film.
The thickness is 8 μm to 8 μm, preferably 1 μm to 100 μm. If the layer thickness is less than 5 μm, whitening in a high temperature atmosphere cannot be sufficiently prevented, and if it exceeds 8 μm, the resulting film will have poor flexibility, which is not preferred. For forming the layer, an appropriate N film forming method can be applied depending on the intended use of the film, such as a spinner coat method, a bar code method, a dipping coat method, or a method using a coating machine. There is no particular limitation on the formation method.
発明の効果
本発明によれば、ポリエステルフィルムに白化防止剤層
を設けたので、これを高温雰囲気下においた場合にもポ
リエステルフィルム中の低分子念分子や滑剤等がフィル
ム表面に析出することが抑制ないし防止される結果、フ
ィルムの白化が有効に防止されてその透明性が良好に維
持される。Effects of the Invention According to the present invention, since the anti-whitening agent layer is provided on the polyester film, even when the polyester film is exposed to a high temperature atmosphere, low molecular weight molecules, lubricants, etc. in the polyester film do not precipitate on the film surface. As a result of being suppressed or prevented, whitening of the film is effectively prevented and its transparency is maintained well.
実施例
実五例１
ビニルトリエトキシシフン（信越シリコン社製、ＫＢＥ
１００８ ’）をイソプロピｆｉ／フルコ−ｆｉ／に溶
解させて５重量％の溶液を調製し、これをスピナーコー
ト方式にて厚さ１００μｍのポリエナレンテレフタレー
トフィルム（ダイヤホイル社製、０型ＰＥＴ）の両面に
塗工したのち１５０°Ｃで３分間加熱処理して０．１μ
ｍの厚さのビニルトリエトキシシラン層を形成した。Example 5 Example 1 Vinyl triethoxysilane (manufactured by Shin-Etsu Silicon Co., Ltd., KBE
1008') in isopropyl-fi/Fluco-fi/ to prepare a 5% by weight solution, which was applied to a 100 μm thick polyenalene terephthalate film (manufactured by Diafoil Co., Ltd., type 0 PET) using a spinner coating method. After coating on both sides, heat treated at 150°C for 3 minutes to give a 0.1μ
A layer of vinyltriethoxysilane with a thickness of m was formed.
実施例２
ｒ−メルカグトプロビルトリメトキンシラン（信越シリ
コン社製、ＫＢＭ８０１ ）を用い、この層の厚さを０
．５μｍとしたほかは実施例１に準じてポリエステルフ
ィルムを得た。Example 2 Using r-mercagutoprobyltrimethquine silane (manufactured by Shin-Etsu Silicon Co., Ltd., KBM801), the thickness of this layer was reduced to 0.
．． A polyester film was obtained according to Example 1 except that the thickness was 5 μm.
実施例８
γ−アミノプロピ〃トリエトキシシラン（信越シリコン
社製、ＫＢＭ９０３ ）を用い、この層の厚さを８００
人としたほか＃ｉ実施例ＩＶｃ準じてポリエステルフィ
ルムヲ得た。Example 8 Using γ-aminopropytriethoxysilane (manufactured by Shin-Etsu Silicon Co., Ltd., KBM903), the thickness of this layer was 800 mm.
In addition to the polyester film #i, a polyester film was obtained according to Example IVc.
比較例
４８例１と同シポリエチレンテレフタレートフィルムそ
のものを使用した。Comparative Example 48 The same polyethylene terephthalate film as in Example 1 was used.
評価試験
実施例、比較例のフィルムを１５０℃の乾燥器中に入れ
、所定時間経過後に取出してそのヘイズ値を調べた。結
果を表に示した。The films of the evaluation test examples and comparative examples were placed in a dryer at 150°C, taken out after a predetermined period of time, and their haze values were examined. The results are shown in the table.
表より、白化防止剤層を設けた本発明のポリエステルフ
ィルムは高温算囲気下においても透明性の維持性にすぐ
れていることがわかる。From the table, it can be seen that the polyester film of the present invention provided with an anti-whitening agent layer has excellent transparency maintenance even under high temperature atmosphere.
Claims (1)
とを特徴とする透明ポリエステルフィルム。 ２、ポリエステルフィルムが一軸延伸フィルムである特
許請求の範囲第１項記載のフィルム。 ３、白化防止剤層がシランカップリング剤からなる特許
請求の範囲第１項記載のフィルム。[Claims] 1. A transparent polyester film characterized by having an anti-whitening agent layer added to the polyester film. 2. The film according to claim 1, wherein the polyester film is a uniaxially stretched film. 3. The film according to claim 1, wherein the anti-whitening agent layer comprises a silane coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7804085A JPS61235148A (en) | 1985-04-11 | 1985-04-11 | Transparent polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7804085A JPS61235148A (en) | 1985-04-11 | 1985-04-11 | Transparent polyester film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61235148A true JPS61235148A (en) | 1986-10-20 |
Family
ID=13650715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7804085A Pending JPS61235148A (en) | 1985-04-11 | 1985-04-11 | Transparent polyester film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61235148A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0238432A (en) * | 1988-06-15 | 1990-02-07 | Hoechst Celanese Corp | Polyester film undercoated with amino-functional silane and laminate of said film |
| JP2002105230A (en) * | 2000-10-02 | 2002-04-10 | Mitsubishi Polyester Film Copp | Polyester film |
-
1985
- 1985-04-11 JP JP7804085A patent/JPS61235148A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0238432A (en) * | 1988-06-15 | 1990-02-07 | Hoechst Celanese Corp | Polyester film undercoated with amino-functional silane and laminate of said film |
| JP2002105230A (en) * | 2000-10-02 | 2002-04-10 | Mitsubishi Polyester Film Copp | Polyester film |
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