JPS6237185A - Transparency film for overhead projector - Google Patents
Transparency film for overhead projectorInfo
- Publication number
- JPS6237185A JPS6237185A JP60176970A JP17697085A JPS6237185A JP S6237185 A JPS6237185 A JP S6237185A JP 60176970 A JP60176970 A JP 60176970A JP 17697085 A JP17697085 A JP 17697085A JP S6237185 A JPS6237185 A JP S6237185A
- Authority
- JP
- Japan
- Prior art keywords
- film
- tetrafluoroethylene
- writable
- erasable
- transparency film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/529—Macromolecular coatings characterised by the use of fluorine- or silicon-containing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
- B41M5/508—Supports
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Duplication Or Marking (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明はオーバーヘッドプロジェクタ−（以下○ＨＰと
称する）用トランスペアレンシーフィルムに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a transparency film for an overhead projector (hereinafter referred to as ○HP).
〈従来の技術〉
近年、視聴覚教育方式の導入を契機としてＯＨＰの使用
が急増しているが、これに用いられるトランスペアレン
シーフィルムは、透明フィルムを用いて直接印刷あるい
はマジックインキなどで手書きしたものとか、或は熱線
吸収性インキを用いた原稿から感熱性フィルム上に感熱
複写したものなどが既に知られている。<Conventional technology> In recent years, the use of OHP has rapidly increased with the introduction of audio-visual education methods. , or those made by thermally copying an original onto a heat-sensitive film using heat-absorbing ink are already known.
しかしながら、これら既知のものでは一度間違った記載
や複写が行われた場合には、書き直しが出来なく甚だ不
経済であった。However, with these known methods, once an incorrect entry or copy is made, it cannot be rewritten, which is extremely wasteful.
〈発明が解決しようとする問題点〉
本発明は書き込み、消去が自由に出来、その結果、恒久
的に反復使用することが出来るような、前記従来品の欠
点を排除したＯＨＰ用トシトランスペアレンジィルムに
かかわる。<Problems to be Solved by the Invention> The present invention provides a toshitransparency film for OHP that eliminates the drawbacks of the conventional products, which can be freely written and erased, and as a result, can be used repeatedly permanently. related to.
く問題点を解決するための手段〉
本発明は透明支持体上に四弗化エチレン・エチレン共重
合体層等の筆記消去可能な樹脂層を設けてなるＯＨＰ用
トシトランスペアレンジィルムであり、該四弗化エチレ
ン・エチレン共重合体等特定の樹脂層の表面が所定の筆
記材による筆記が可能であり、かつ筆記された筆跡が乾
式イレーザ−により容易に消去できることから恒久的に
筆記消去ができる本発明のＯＨＰ用トテトランスペアレ
ンジィルムを得るに至った。Means for Solving the Problems> The present invention is an OHP tocitransparendy film comprising a transparent support and a writable and erasable resin layer such as a tetrafluoroethylene/ethylene copolymer layer. The surface of the specific resin layer, such as tetrafluoroethylene/ethylene copolymer, can be written on with a specified writing material, and written handwriting can be easily erased with a dry eraser, so writing can be permanently erased. The tote transparenium for OHP of the present invention was obtained.
本発明でいう筆記消去可能な樹脂とは、所定の筆記具、
イレーザ−により容易に筆記消去が可能な弗素系、シリ
コーン系、ポリプロピレン、ポリエチレン等であるが、
中でも旭硝子社製の商品名「アフレックス」等で上布さ
れている四弗化エチレン・エチレン共重合体がその特異
な表面物性に基づき本発明にとくに好適に使用される。The writable and erasable resin referred to in the present invention refers to a predetermined writing instrument,
Fluorine-based, silicone-based, polypropylene, polyethylene, etc. can be easily erased with an eraser.
Among these, tetrafluoroethylene/ethylene copolymer, which is coated under the trade name "Afflex" manufactured by Asahi Glass Co., Ltd., is particularly suitable for use in the present invention because of its unique surface properties.
本発明のＯＨＰ用トテトランスペアレンジィルムを製造
するには、例えば厚さ５０〜２５０ｕＩＩｌのポリエチ
レンテレフタレート、ポリカーボネート、セルロースト
リアセテート等の透明フィルムからなる支持体上にドラ
イラミネーションにより四弗化エチレン・エチレン共重
合体フィルムを貼り合わせるとか、Ｔダイ押し出し法に
より透明支持体樹脂と四弗化エチレン・エチレン樹脂を
共押し出しして接層することによりなされる。In order to produce the totetransparen film for OHP of the present invention, a tetrafluoroethylene/ethylene copolymer film is formed by dry lamination onto a support made of a transparent film of polyethylene terephthalate, polycarbonate, cellulose triacetate, etc. with a thickness of 50 to 250 uIIl. This can be done by laminating combined films together or by co-extruding a transparent support resin and a tetrafluoroethylene/ethylene resin using a T-die extrusion method to form a contact layer.
なお、透明支持体を使用することな（、ハンドリング性
に支障のない１００〜２００ｕｍの厚さを有する四弗化
エチレン・エチレン共重合体フィルムをそのままＯＨＰ
用トテトランスペアレンジィルムとして使用しても本発
明と同等の効果を得ることができる。Note that without using a transparent support, a tetrafluoroethylene/ethylene copolymer film with a thickness of 100 to 200 um that does not impede handling properties can be directly printed on OHP.
The same effects as the present invention can be obtained even when the present invention is used as a tote transparenium.
さらに又、ＯＨＰ用トテトランスペアレンジィルムに書
き込む情報として表や図形等を併用する場合は、予め該
フィルム表面に昇華性染料インキを使って所定の表や図
形等を印刷しておくこともできる。この場合の印刷は昇
華性染料インキ使って印刷した転写紙の印刷面を該フィ
ルム表面に密着し加熱により印刷画像を昇華転写すれば
よい。Furthermore, when tables, figures, etc. are also used as information to be written on the OHP tote transparen film, predetermined tables, figures, etc. can be printed on the surface of the film in advance using sublimation dye ink. In this case, printing can be carried out by bringing the printed surface of a transfer paper printed using sublimable dye ink into close contact with the surface of the film, and sublimating and transferring the printed image by heating.
〈実施例〉 以下実施例をもって本発明を詳述する。<Example> The present invention will be explained in detail with reference to Examples below.
実施例１
厚さ１２５νｍの透明ポリエチレンテレフタレートから
なる支持体と厚さ２１μｍの四弗化エチレン・エチレン
共重合体フィルム（アフレックス、旭硝子社製）からな
る筆記消去可能なフィルムとを下記配合からなる接着材
塗液を使用してドライラミネートにより貼り合わせて本
発明のＯＨＰ用トテトランスペアレンジィルムを作製し
た。Example 1 A support made of transparent polyethylene terephthalate with a thickness of 125 νm and a writable and erasable film made of a tetrafluoroethylene/ethylene copolymer film (Aflex, manufactured by Asahi Glass Co., Ltd.) with a thickness of 21 μm were made of the following composition. A tote transparen film for OHP of the present invention was prepared by dry laminating using an adhesive coating solution.
このフィルムの表面に所定の筆記具にて筆記し、スーパ
ーファクス０ＨＰ２８８０ （リコー社製）にて投影し
たところ、鮮明な投影画像を得ることができた。さらに
このフィルム上で筆記、消去を数１０回繰り返したが常
に鮮明な投影画像が得られた。When writing was written on the surface of this film with a designated writing instrument and the image was projected using Superfax 0HP2880 (manufactured by Ricoh), a clear projected image could be obtained. Further, writing and erasing was repeated several dozen times on this film, but a clear projected image was always obtained.
実施例２
エチレングリシジルメタアクリレート・酢酸ビニル共重
合体（ボンドファースト、住方化学社製）、（押し出し
温度２２０〜２５０℃）を支持体用材料とし、四弗化エ
チレン・エチレン共重合体くアフロン、旭硝子社製）（
押し出し温度３００〜３４０℃）を筆記消去可能な樹脂
材料とし、前者を厚さ１８０μｍに、後者を厚さ５ｕｍ
となるよううに、Ｔダイを用い共押し出ししてニップロ
ールと冷却ロールの間で圧着冷却することにより、支持
体用プラスチックフィルムと筆記消去可能なプラスチッ
クフィルムとが融着一体化されている本発明のＯＨＰ用
トテトランスペアレンジィルムを作製した。Example 2 Ethylene glycidyl methacrylate/vinyl acetate copolymer (Bond First, manufactured by Sumikata Chemical Co., Ltd.) (extrusion temperature 220 to 250°C) was used as a support material, and ethylene tetrafluoride/ethylene copolymer Aphron was used. , manufactured by Asahi Glass Co., Ltd.) (
The extrusion temperature is 300 to 340°C), and the former is 180 μm thick and the latter is 5 μm thick.
According to the present invention, the support plastic film and the writable and erasable plastic film are fused and integrated by co-extrusion using a T-die and pressure cooling between a nip roll and a cooling roll so that A totetransparen film for OHP was produced.
このフィルムの表面に実施例１の要領にて筆記消去の操
作を何回も繰り返しなからＯＨＰにて投影したところ、
常に鮮明な投影画像が得られた。After repeating the writing and erasing operation many times on the surface of this film in the same manner as in Example 1, the film was projected using an OHP.
Clear projected images were always obtained.
〈発明の効果〉
本発明は上記の如き構成を有するので、ＯＨＰ用トテト
ランスペアレンジィルムの表面に書き込み、消去が自由
に何回も出来、一枚のフィルムを恒久的に使用すること
ができるので取扱い上も、又、経済的にも大きな効果を
奏するものである。<Effects of the Invention> Since the present invention has the above-described configuration, writing and erasing can be freely performed on the surface of the OHP transparen film any number of times, and one film can be used permanently. This has great effects both in terms of handling and economically.
Claims (1)
オーバーヘッドプロジェクター用トランスペアレンシー
フィルム。 ２ 筆記消去可能な樹脂が四弗化エチレン・エチレン共
重合体である特許請求の範囲第１項記載のオーバーヘッ
ドプロジェクター用トランスペアレンシーフィルム。[Scope of Claims] 1. A transparency film for an overhead projector comprising a writable and erasable resin layer provided on a transparent support. 2. The transparency film for an overhead projector according to claim 1, wherein the writable and erasable resin is a tetrafluoroethylene/ethylene copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60176970A JPS6237185A (en) | 1985-08-13 | 1985-08-13 | Transparency film for overhead projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60176970A JPS6237185A (en) | 1985-08-13 | 1985-08-13 | Transparency film for overhead projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6237185A true JPS6237185A (en) | 1987-02-18 |
| JPH0331356B2 JPH0331356B2 (en) | 1991-05-02 |
Family
ID=16022895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60176970A Granted JPS6237185A (en) | 1985-08-13 | 1985-08-13 | Transparency film for overhead projector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6237185A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6480586A (en) * | 1987-09-24 | 1989-03-27 | Hitachi Powdered Metals | Ohp film |
| JPH03197170A (en) * | 1989-12-27 | 1991-08-28 | Tomoegawa Paper Co Ltd | Transparent film for dot impact recording |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100227A (en) * | 1977-02-14 | 1978-09-01 | Asahi Dow Ltd | Plastic sheet superior for writing |
| JPS57107878A (en) * | 1980-12-25 | 1982-07-05 | Mitsubishi Paper Mills Ltd | Recording paper |
-
1985
- 1985-08-13 JP JP60176970A patent/JPS6237185A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100227A (en) * | 1977-02-14 | 1978-09-01 | Asahi Dow Ltd | Plastic sheet superior for writing |
| JPS57107878A (en) * | 1980-12-25 | 1982-07-05 | Mitsubishi Paper Mills Ltd | Recording paper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6480586A (en) * | 1987-09-24 | 1989-03-27 | Hitachi Powdered Metals | Ohp film |
| JPH0516354B2 (en) * | 1987-09-24 | 1993-03-04 | Hitachi Funmatsu Yakin Kk | |
| JPH03197170A (en) * | 1989-12-27 | 1991-08-28 | Tomoegawa Paper Co Ltd | Transparent film for dot impact recording |
| JPH052516B2 (en) * | 1989-12-27 | 1993-01-12 | Tomoegawa Paper Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0331356B2 (en) | 1991-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |