JPH0719816Y2 - Film for overhead projector - Google Patents
Film for overhead projectorInfo
- Publication number
- JPH0719816Y2 JPH0719816Y2 JP1988167679U JP16767988U JPH0719816Y2 JP H0719816 Y2 JPH0719816 Y2 JP H0719816Y2 JP 1988167679 U JP1988167679 U JP 1988167679U JP 16767988 U JP16767988 U JP 16767988U JP H0719816 Y2 JPH0719816 Y2 JP H0719816Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheet material
- adhesive
- synthetic resin
- resin sheet
- weak
- 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.)
- Expired - Lifetime
Links
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は例えば熱転写方式のプリンターを使用して良質
な印字の画像を描くことができるオーバヘッドプロジェ
クター（以下OHPと記す）用フィルムに関するものであ
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a film for an overhead projector (hereinafter referred to as OHP) capable of drawing an image of high quality printing by using, for example, a thermal transfer printer. .
〈従来の技術〉 周知のように、OHP用のフィルムとしては透明な合成樹
脂シート材の表面にゴム系接着層やアクリル系接着層を
形成したもの、また熱溶融インクと相溶性の良い固体ろ
うを含む塗布層を設けたものなど（特開昭60−154096号
公報）が知られている。<Prior Art> As is well known, as a film for OHP, a transparent synthetic resin sheet material having a rubber adhesive layer or an acrylic adhesive layer formed on the surface thereof, or a solid wax having good compatibility with hot-melt ink There is known one having a coating layer containing (Japanese Patent Laid-Open No. 60-154096).
〈考案が解決しようとする課題〉 しかし、上記したOHP用のフィルムは製造過程から使用
過程までにおいては、透明な合成樹脂シート材の片面に
裏面シート材を重合状に設けなければならない。<Problems to be Solved by the Invention> However, in the above-mentioned OHP film, the back sheet material must be provided on one side of the transparent synthetic resin sheet material in a polymerized state from the manufacturing process to the use process.
この裏面シート材は透明な合成樹脂シート材を保護する
ばかりでなく、印字直後に反射光で鮮明な画像を透写さ
せるため、また紙センサーにより作動するプリンターに
おいてはセンサーの検出精度を向上させるため、更に印
字時に透明な合成樹脂シート材の裏面が走行中に微細な
傷が付くのを防止するためなど種々の機能を有する。This backside sheet material not only protects the transparent synthetic resin sheet material, but also transmits a clear image with reflected light immediately after printing, and improves the detection accuracy of the sensor in printers that operate with paper sensors. Further, it has various functions such as preventing the back surface of the transparent synthetic resin sheet material from being finely scratched during traveling during printing.
しかし、透明な合成樹脂シート材から裏面シート材をき
わめて簡単に剥離できなければ実用的な使用に供するこ
とができない。また、透明な合成樹脂シート材から裏面
シート材を剥離した場合、透明な合成樹脂シート材に接
着剤が残存していると、透明な合成樹脂シート材をOHP
のガラス面に載せた場合に付着する。しかも、透明な合
成樹脂シート材に接着剤が残存していると光線の透過率
が低下してスクリーンに濃色で写るので見苦しく、また
複数枚の透明な合成樹脂シート材を重合すると滑らない
ので取り扱い難い。However, unless the back sheet material can be separated from the transparent synthetic resin sheet material very easily, it cannot be put to practical use. Also, when the back sheet material is peeled from the transparent synthetic resin sheet material, if the adhesive remains on the transparent synthetic resin sheet material, the transparent synthetic resin sheet material will be OHPed.
It adheres when placed on the glass surface of. Moreover, if the adhesive remains on the transparent synthetic resin sheet material, the light transmittance will be reduced and the image will appear dark in the screen, which is unsightly, and if multiple transparent synthetic resin sheet materials are polymerized, it will not slip. It is difficult to handle.
〈課題を解決するための手段〉 本考案は上記に鑑み提案されたもので、透明な合成樹脂
シート材の片面に裏面シート材を重合状に当てがい、両
シート材の一端部分を強弱両面粘着テープにより剥離可
能に、且つ弱粘着層を透明な合成樹脂シート材に、強粘
着層を裏面シート材に臨ませて接合してなるオーバヘッ
ドプロジェクター用フィルムを提供するものである。<Means for Solving the Problems> The present invention has been proposed in view of the above, in which one side of a transparent synthetic resin sheet material is superposed with a back sheet material, and one end portion of both sheet materials is subjected to strong and weak double-sided adhesion. Provided is an overhead projector film which is peelable with a tape and has a weak adhesive layer bonded to a transparent synthetic resin sheet material and a strong adhesive layer facing a back sheet material.
〈実施例〉 以下に本考案を図面の実施例に基づいて詳細に説明す
る。<Embodiment> Hereinafter, the present invention will be described in detail based on an embodiment of the drawings.
本考案のOHP用フィルム１は、例えばポリエチレンテレ
フタレートから成る透明な合成樹脂シート材２の片面
に、例えば合成紙、不透明な合成樹脂シート材などから
なる裏面シート材３をあてがい、上記した透明な合成樹
脂シート材２と裏面シート材３とを、一端部分において
強弱両面粘着テープ４により剥離可能に接合した構成で
ある。In the OHP film 1 of the present invention, a transparent synthetic resin sheet material 2 made of, for example, polyethylene terephthalate is coated on one side with a back sheet material 3 made of synthetic paper, an opaque synthetic resin sheet material, etc. The resin sheet material 2 and the back sheet material 3 are configured such that one end portion of the resin sheet material 2 and the back surface sheet material 3 are releasably joined to each other by the strong and weak double-sided adhesive tape 4.
そして、上記した強弱両面粘着テープ４はシート基材５
の一方の面に弱粘着側の粘着層６を形成し、シート基材
５の他の面に強粘着側の粘着層７を形成してあるので粘
着強度が異なり、弱粘着側の粘着層６が透明な合成樹脂
シート材２に臨んで付着されているとともに、強粘着側
の粘着層７が裏面シート材３に臨んで付着されているの
で、強弱両面粘着テープ４に対する透明な合成樹脂シー
ト材２と裏面シート材３の粘着強度が相違する。The above-mentioned strong and weak double-sided adhesive tape 4 is a sheet base material 5.
Since the adhesive layer 6 on the weak adhesive side is formed on one surface and the adhesive layer 7 on the strong adhesive side is formed on the other surface of the sheet base material 5, the adhesive strength is different, and the adhesive layer 6 on the weak adhesive side is formed. Is adhered to the transparent synthetic resin sheet material 2 and the strong adhesive side adhesive layer 7 is adhered to the back surface sheet material 3, so that the transparent synthetic resin sheet material for the strong and weak double-sided adhesive tape 4 is adhered. 2 and the back sheet material 3 have different adhesive strengths.
したがって、強弱両面粘着テープ４により接合されてい
る透明な合成樹脂シート材２と裏面シート材３とを剥離
すると、強弱両面粘着テープ４は強粘着側の粘着層７に
付着している裏面シート材３にのみ残り、透明な合成樹
脂シート材２の面には残らないので、透明な合成樹脂シ
ート材２に粘着部分が残存することがない。Therefore, when the transparent synthetic resin sheet material 2 and the back surface sheet material 3 bonded by the strong / weak double-sided adhesive tape 4 are peeled off, the strong / weak double-sided adhesive tape 4 adheres to the strong adhesive side adhesive layer 7 Since it remains only on the transparent synthetic resin sheet material 3, and not on the surface of the transparent synthetic resin sheet material 2, no adhesive portion remains on the transparent synthetic resin sheet material 2.
上記した強弱両面粘着テープ４のシート基材５に弱粘着
側の粘着層６と強粘着側の粘着層７とを形成するには、
例えば第２図で示すように弱粘着側の粘着層６と強粘着
側の粘着層７とが同一の成分であれば強粘着側の粘着層
７の幅を弱粘着側の粘着層６より広くし、粘着面積を大
きくして粘着強度を強くすればよい。In order to form the adhesive layer 6 on the weak adhesive side and the adhesive layer 7 on the strong adhesive side on the sheet base material 5 of the above-mentioned strong and weak double-sided adhesive tape 4,
For example, as shown in FIG. 2, if the adhesive layer 6 on the weak adhesive side and the adhesive layer 7 on the strong adhesive side have the same component, the width of the adhesive layer 7 on the strong adhesive side is wider than that of the adhesive layer 6 on the weak adhesive side. Then, the adhesive area may be increased to increase the adhesive strength.
また、例えば第３図で示すように弱粘着側の粘着層６き
強粘着側の粘着層７とが同一の幅であれば、弱粘着側の
粘着層６を弱粘着性成分で構成して強粘着側の粘着層７
を高粘着性成分で構成すればよいし、粘着層の厚さによ
っても粘着強度が相違するので、弱粘着側の粘着層６を
薄くして強粘着側の粘着層７を厚くすることにより構成
してもよい。Further, for example, as shown in FIG. 3, if the adhesive layer 6 on the weak adhesive side and the adhesive layer 7 on the strong adhesive side have the same width, the adhesive layer 6 on the weak adhesive side is composed of a weak adhesive component. Strongly adhesive side adhesive layer 7
Is composed of a high-adhesive component, and the adhesive strength varies depending on the thickness of the adhesive layer. Therefore, the adhesive layer 6 on the weak adhesive side is thinned and the adhesive layer 7 on the strong adhesive side is thickened. You may.
更に、もっとも望ましいのは弱粘着側の粘着層６と強粘
着側の粘着層７とが同一の粘着剤であれば、第４図で示
すように弱粘着側の粘着層６を薄くして幅を狭くし、強
粘着側の粘着層７を厚くして幅を広くすれば良い。Furthermore, it is most desirable that if the adhesive layer 6 on the weak adhesive side and the adhesive layer 7 on the strong adhesive side are the same adhesive, the adhesive layer 6 on the weak adhesive side is thinned to have a width as shown in FIG. Is narrowed and the adhesive layer 7 on the strongly adhesive side is thickened to widen it.
上記したように強弱両面粘着テープ４を構成して透明な
合成樹脂シート材２と裏面シート材３とを接合すると、
透明な合成樹脂シート材２から裏面シート材３を剥離し
たとしても強弱両面粘着テープ４の粘着成分が透明な合
成樹脂シート材２に残存しないので、透明な合成樹脂シ
ート材２をOHPに供給してもトラブルを生じない。As described above, when the strong and weak double-sided adhesive tape 4 is formed and the transparent synthetic resin sheet material 2 and the back surface sheet material 3 are joined,
Even if the back sheet material 3 is peeled from the transparent synthetic resin sheet material 2, the adhesive component of the strong and weak double-sided adhesive tape 4 does not remain on the transparent synthetic resin sheet material 2, so the transparent synthetic resin sheet material 2 is supplied to the OHP. But no trouble occurs.
第５図は本考案の他の実施例を示すもので、透明な合成
樹脂シート材２の片面に、透明な合成樹脂シート材２の
縦半分の寸法の裏面シート材３′を左右に当てがい、各
裏面シート材３′と透明な合成樹脂シート材２とを左右
の側縁において強弱両面粘着テープ４で接合した構成で
あり、各強弱両面粘着テープ４は上記した実施例と同様
に弱粘着側の粘着層６と強粘着側の粘着層７とを有して
弱粘着側の粘着層６が透明な合成樹脂シート材２に、強
粘着側の粘着層７が裏面シート材３′に臨んでいる。FIG. 5 shows another embodiment of the present invention, in which one side of a transparent synthetic resin sheet material 2 is covered with a back sheet material 3'having a half length of the transparent synthetic resin sheet material 2 on the left and right sides. The back sheet material 3 ′ and the transparent synthetic resin sheet material 2 are joined at the left and right side edges by the strong and weak double-sided adhesive tape 4, and each strong and weak double-sided adhesive tape 4 is weakly adhesive as in the above embodiment. Side adhesive layer 6 and strong adhesive side adhesive layer 7 and the weak adhesive side adhesive layer 6 faces the transparent synthetic resin sheet material 2, and the strong adhesive side adhesive layer 7 faces the back sheet material 3 '. I'm out.
したがって、この実施例では左右の裏面シート材３′が
観音開き状になる。Therefore, in this embodiment, the left and right back sheet materials 3'have a double door shape.
なお、強弱両面粘着テープ４を透明な合成樹脂シート材
２と裏面シート材３とに接合する以前の強弱両面粘着テ
ープ４には、両面にあらかじめ剥離紙を貼着しておくの
が望ましい。It should be noted that it is desirable to attach release papers to both sides of the strong and weak double-sided adhesive tape 4 before the strong and weak double-sided adhesive tape 4 is bonded to the transparent synthetic resin sheet material 2 and the back surface sheet material 3.
以上本考案を図面の実施例に基づいて説明したが、本考
案は上記した各実施例に限定されるのではなく、実用新
案登録請求の範囲に記載した構成を変更しない限りどの
ようにでも実施することができる。The present invention has been described above based on the embodiments of the drawings, but the present invention is not limited to the above-described embodiments, and may be implemented in any manner as long as the configuration described in the claims for utility model is not changed. can do.
〈考案の効果〉 以上要するに本考案によれば、透明な合成樹脂シート材
と裏面シート材との接合に強弱両面粘着テープを使用す
ることにより、きわめて簡単に作成することができ、量
産性に優れたものとなる。そして、強弱両面粘着テープ
に弱粘着側と強粘着側とを設け、弱粘着側を透明な合成
樹脂シート材に臨ませることで、裏面シート材を剥離し
た場合に粘着剤が透明な合成樹脂シート材に残存するこ
とがない。したがって、取扱が容易なばかりでなくOHP
のガラス面を汚損させることもなく、実用的価値の高い
ものを提供することができる。<Effects of the Invention> In summary, according to the present invention, by using the strong and weak double-sided adhesive tape for joining the transparent synthetic resin sheet material and the back sheet material, it can be made very easily and is excellent in mass productivity. It becomes a thing. Then, the weak-adhesive double-sided adhesive tape is provided with the weak-adhesive side and the strong-adhesive side, and the weak-adhesive side is exposed to the transparent synthetic resin sheet material, so that the adhesive sheet is transparent when the back sheet material is peeled off. It does not remain on the wood. Therefore, it is not only easy to handle but also OHP
It is possible to provide a glass having a high practical value without contaminating the glass surface of.
また、本考案は強弱両面粘着テープを透明な合成樹脂シ
ート材若しくは裏面シート材のいずれかの一端部分に貼
付して両シート材を重合状に接合するのみで極めて簡単
に作成することができ、加熱処理等を必要としないの
で、量産性に優れ、熱収縮によるカール等を生ずること
もない。Further, the present invention can be made very simply by sticking the strong and weak double-sided adhesive tape to one end of either the transparent synthetic resin sheet material or the back sheet material and joining the both sheet materials in a polymerized manner. Since heat treatment or the like is not required, mass productivity is excellent and curling due to heat shrinkage does not occur.
さらに、本考案は一端部分だけにしか粘着層が設けられ
ていないので、透明な合成樹脂シート材を剥離する際に
も簡単であり、しかもその剥離もプライマー処理等の接
着力を調整するための処理を必要とすることなく安定に
透明合成樹脂シート材と弱粘着層との間で行うことがで
きる。裏面シート材の大部分は例えばメモ紙等として有
効に利用することもできる。さらに、透明な合成樹脂シ
ート材を剥離してOHPに供給した後も、弱粘着層の粘着
性は損なわれていないので、再度透明な合成樹脂シート
材を弱粘着層、即ち裏面シート材と貼り合わせてその表
面を保護したり、記載事項を見易くすることもできる。Furthermore, since the present invention is provided with the adhesive layer only on one end portion, it is easy to peel the transparent synthetic resin sheet material, and the peeling is for adjusting the adhesive force such as primer treatment. It can be stably carried out between the transparent synthetic resin sheet material and the weak adhesive layer without the need for treatment. Most of the back sheet material can also be effectively used as, for example, memo paper. Furthermore, even after peeling the transparent synthetic resin sheet material and supplying it to the OHP, since the adhesiveness of the weak adhesive layer is not impaired, the transparent synthetic resin sheet material is attached again to the weak adhesive layer, that is, the back sheet material. In addition, the surface can be protected and the description can be made easy to see.
図面は本考案の一実施例を示すもので、第１図は斜視
図、第２図は一部の拡大縦断面図、第３図は本考案の他
の実施例の一部の拡大断面図、第４図は本考案の他の実
施例の一部拡大断面図、第５図は本考案の他の実施例の
概略斜視図である。 １はオーバヘッドプロジェクター用フィルム、２は透明
な合成樹脂シート材、３は裏面シート材、４は強弱両面
粘着テープ。1 is a perspective view, FIG. 2 is a partially enlarged vertical sectional view, and FIG. 3 is a partially enlarged sectional view of another embodiment of the present invention. FIG. 4 is a partially enlarged sectional view of another embodiment of the present invention, and FIG. 5 is a schematic perspective view of another embodiment of the present invention. 1 is a film for overhead projector, 2 is a transparent synthetic resin sheet material, 3 is a back sheet material, and 4 is a strong and weak double-sided adhesive tape.
フロントページの続き (56)参考文献 特開 昭57−76554（ＪＰ，Ａ) 特開 昭63−107587（ＪＰ，Ａ) 特開 昭60−19588（ＪＰ，Ａ) 特開 昭62−264994（ＪＰ，Ａ) 特開 昭62−176896（ＪＰ，Ａ) 実開 昭57−81177（ＪＰ，Ｕ) 実開 昭63−16160（ＪＰ，Ｕ)Continuation of the front page (56) Reference JP-A-57-76554 (JP, A) JP-A-63-107587 (JP, A) JP-A-60-19588 (JP, A) JP-A-62-264994 (JP , A) JP 62-176896 (JP, A) Actually opened 57-81177 (JP, U) Actually opened 63-16160 (JP, U)
Claims (1)
ト材を重合状に当てがい、両シート材の一端部分を強弱
両面粘着テープにより剥離可能に、且つ弱粘着層を透明
な合成樹脂シート材に、強粘着層を裏面シート材に臨ま
せて接合してなるオーバヘッドプロジェクター用フィル
ム。1. A synthetic resin sheet in which a back sheet material is superposed on one side of a transparent synthetic resin sheet material so that one end portions of both sheet materials can be peeled off with a strong and weak double-sided adhesive tape, and a weak adhesive layer is transparent. A film for overhead projectors that is made by bonding a strong adhesive layer to the backside sheet material and joining it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988167679U JPH0719816Y2 (en) | 1988-12-27 | 1988-12-27 | Film for overhead projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988167679U JPH0719816Y2 (en) | 1988-12-27 | 1988-12-27 | Film for overhead projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0288769U JPH0288769U (en) | 1990-07-13 |
| JPH0719816Y2 true JPH0719816Y2 (en) | 1995-05-10 |
Family
ID=31456192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988167679U Expired - Lifetime JPH0719816Y2 (en) | 1988-12-27 | 1988-12-27 | Film for overhead projector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719816Y2 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776554A (en) * | 1980-10-31 | 1982-05-13 | Olympus Optical Co Ltd | Copy sheet for use in overhead projector |
| JPH018381Y2 (en) * | 1980-11-05 | 1989-03-06 | ||
| JPS6019588A (en) * | 1983-07-13 | 1985-01-31 | Ricoh Co Ltd | Thermal transfer recording type label |
| JP2540494B2 (en) * | 1986-01-30 | 1996-10-02 | 大日本印刷株式会社 | Heat transfer sheet for making transparent originals |
| JP2524704B2 (en) * | 1986-05-13 | 1996-08-14 | 大日本印刷株式会社 | Method of manufacturing heat transfer sheet |
| JPS6316160U (en) * | 1986-07-16 | 1988-02-02 | ||
| JP2748115B2 (en) * | 1986-10-23 | 1998-05-06 | 大日本印刷株式会社 | Heat transfer sheet for transparent manuscript creation |
-
1988
- 1988-12-27 JP JP1988167679U patent/JPH0719816Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0288769U (en) | 1990-07-13 |
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