JPH0512270Y2 - - Google Patents
Info
- Publication number
- JPH0512270Y2 JPH0512270Y2 JP1988103293U JP10329388U JPH0512270Y2 JP H0512270 Y2 JPH0512270 Y2 JP H0512270Y2 JP 1988103293 U JP1988103293 U JP 1988103293U JP 10329388 U JP10329388 U JP 10329388U JP H0512270 Y2 JPH0512270 Y2 JP H0512270Y2
- Authority
- JP
- Japan
- Prior art keywords
- sensitive adhesive
- sheet
- thermoplastic resin
- transparent
- heat
- 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
- 239000000853 adhesive Substances 0.000 claims description 26
- 230000001070 adhesive effect Effects 0.000 claims description 26
- 239000010410 layer Substances 0.000 claims description 22
- 229920005992 thermoplastic resin Polymers 0.000 claims description 21
- -1 polyethylene terephthalate Polymers 0.000 claims description 20
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 17
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 17
- 239000012790 adhesive layer Substances 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 7
- 239000011241 protective layer Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
- Credit Cards Or The Like (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は種々の印刷物の表面同士の間に挟み込
み、熱接着によつて一体化することが出来、更に
容易に剥離することが可能で剥離することにより
保護層となる感熱接着シートに係るものである。[Detailed description of the invention] [Industrial application field] This invention can be sandwiched between the surfaces of various printed materials and integrated by thermal adhesion, and can be easily peeled off. This relates to a heat-sensitive adhesive sheet that becomes a protective layer by doing so.
従来、紙或いはプラスチツクフイルムなどの印
刷物の印刷面に耐水性、耐候性を向上させる目的
で透明感圧接着シート或いは透明感熱接着シート
から成る保護層が設けられている。
BACKGROUND ART Conventionally, a protective layer made of a transparent pressure-sensitive adhesive sheet or a transparent heat-sensitive adhesive sheet has been provided on the printed surface of printed matter such as paper or plastic film for the purpose of improving water resistance and weather resistance.
更に之の応用として最近注目されているものに
葉書がある。その一例として両面に感圧接着剤層
を配した透明感圧接着シートを２枚の印刷が施さ
れた葉書でサンドイツチ状に貼合するか、或いは
従来の２倍の面積の印刷が施された葉書を中央よ
り折り曲げ、透明感圧接着シートを介して貼合し
たものである。斯かる葉書は受取人が貼合部を引
剥がすことにより通常の葉書と同一の料金で３倍
の情報量が得られる事になる。 Furthermore, postcards are an application that has recently attracted attention. For example, a transparent pressure-sensitive adhesive sheet with a pressure-sensitive adhesive layer on both sides is pasted together like a sandwich between two printed postcards, or a sheet with twice the area of conventional printing is applied. A postcard is folded from the center and pasted together using a transparent pressure-sensitive adhesive sheet. When the recipient peels off the adhesive on such a postcard, the recipient can obtain three times the amount of information for the same price as a regular postcard.
しかし、斯かる用途に用いられている透明感圧
接着シートはその接着剤層を保護するために剥離
紙が必要である。このためコトス高となり、且つ
使用時にこの剥離紙を取除き廃棄処分しなければ
ならない。更に葉書の貼合の強度が弱いと郵送の
途中で剥離して了つたり、また逆に強過ぎると受
取人が引剥がすのに手間が掛かり著しい場合には
印刷部が剥離して記載された印刷などの情報が不
鮮明となることがある。 However, the transparent pressure-sensitive adhesive sheets used in such applications require a release paper to protect the adhesive layer. This results in high costs, and the release paper must be removed and disposed of when used. Furthermore, if the adhesive on the postcard is not strong enough, it may peel off during mailing, and if it is too strong, it will take time for the recipient to peel it off, and in severe cases, the printed part will peel off and the writing will be written on it. Printed information may become unclear.
更に、見開いた面は常に粘着状態のため汚れが
付着し易く、また第三者が見開いた後、簡単にに
再接着できる欠点を有していた。 Furthermore, since the open side is always in an adhesive state, dirt tends to adhere to it, and it also has the disadvantage that it can be easily re-adhered after being opened by a third party.
本考案者等は斯かる従来の保護層用粘着シート
を応用した感圧接着シートの欠陥を改善すべく鋭
意検討した結果新規な構成を有する透明感熱接着
シートを考案した。
The inventors of the present invention have conducted intensive studies to improve the defects of pressure-sensitive adhesive sheets using conventional adhesive sheets for protective layers, and have devised a transparent heat-sensitive adhesive sheet having a novel structure.
本考案は第１図に示す如く、透明ポリエチレン
テレフタレートシート１の一方の面に溶融押出し
による熱可塑性樹脂層２が自然剥離することが無
く、且つ容易に剥離可能な状態に設けられて成る
積層シート３の両面に100℃以下で溶融接着する
感熱接着剤層４，４′を設けたもの、若しくは第
２図に示す如く、積層シート３の熱可撓性樹脂層
２とは反対の面に100℃以下で溶融接着する感熱
接着剤層４を設けたものである。 As shown in FIG. 1, the present invention is a laminated sheet in which a thermoplastic resin layer 2 formed by melt extrusion is provided on one side of a transparent polyethylene terephthalate sheet 1 in a state that does not naturally peel off and can be easily peeled off. 3 with heat-sensitive adhesive layers 4, 4' that melt and bond at temperatures below 100°C, or as shown in FIG. It is provided with a heat-sensitive adhesive layer 4 that melts and adheres at temperatures below .degree.
本考案に用いられる透明ポリエチレンテレフタ
レートシート１は本考案の透明感熱接着シートの
製造若しくは使用時に於いて耐えられる耐熱性、
強度などの点から比較的薄いシートでも充分に使
用できるので特にポリエチレンテレフタレートが
好適である。 The transparent polyethylene terephthalate sheet 1 used in the present invention has heat resistance that can withstand the production or use of the transparent heat-sensitive adhesive sheet of the present invention.
Polyethylene terephthalate is particularly suitable because even a relatively thin sheet can be used satisfactorily from the viewpoint of strength.
透明ポリエチレンテレフタレートシート１に溶
融押出しにより配設する熱可塑性樹脂層は、透明
ポリエチレンテレフタレートシート１と熱可塑性
樹脂層２との界面の剥離強度が自然剥離はせず、
且つ人が手で容易に剥離出来る程度、特に望まし
くはＴ型剥離力（剥離速度300mm／分、20℃、65
％RH）として50〜5g／５cmとなる樹脂で且つ透
明性のあるものが用いられる。 The thermoplastic resin layer disposed on the transparent polyethylene terephthalate sheet 1 by melt extrusion has a peel strength at the interface between the transparent polyethylene terephthalate sheet 1 and the thermoplastic resin layer 2 that does not naturally peel off.
In addition, the peeling strength is such that a person can easily peel it off by hand, especially T-type peeling force (peeling speed 300 mm/min, 20°C, 65°C).
%RH) of 50 to 5 g/5 cm and is transparent.
従つて一旦剥離するとそのままの状態では簡単
に再接着しない特徴を有している。その中でも代
表的なものとしてエチレン−アクリル酸エチル共
重合体及び／またはエチレン−酢酸ビニル共重合
体とポリエチレンとの混合樹脂が挙げられる。之
等の樹脂の混合割合は透明ポリエチレンテレフタ
レートシートの種類により異なり、上述の剥離強
度が得られる様に、且つまた熱可塑性樹脂層２上
に感熱接着剤層４′を設けない第２図に示す構成
の場合には印刷物５に対する熱接着条件により選
定される。感熱接着剤層４，４′として用いられ
る接着剤は、予め上述の剥離強度の範囲に積層さ
れた透明ポリエチレンテレフタレートシート１と
熱可塑性樹脂層２との界面接着強度に影響を与え
ない温度、好ましくは100℃以下で溶融接着出来、
しかも透明性を阻害しないものであれば特に限定
するものではない。 Therefore, once it is peeled off, it does not easily re-adhere in that state. Among these, mixed resins of ethylene-ethyl acrylate copolymer and/or ethylene-vinyl acetate copolymer and polyethylene are representative. The mixing ratio of these resins varies depending on the type of transparent polyethylene terephthalate sheet, and is determined so that the above-mentioned peel strength can be obtained, and also when the heat-sensitive adhesive layer 4' is not provided on the thermoplastic resin layer 2, as shown in FIG. In the case of the configuration, the selection is made depending on the thermal bonding conditions for the printed matter 5. The adhesive used as the heat-sensitive adhesive layers 4, 4' is preferably maintained at a temperature that does not affect the interfacial adhesive strength between the transparent polyethylene terephthalate sheet 1 and the thermoplastic resin layer 2, which are laminated to have a peel strength within the above-mentioned range. Can be melted and bonded at temperatures below 100℃.
Furthermore, there is no particular limitation as long as it does not impede transparency.
第１図に示す積層シート３の両面に感熱接着剤
層４，４′が設けられた本考案の透明感熱接着シ
ートは、第３図に示す様に２枚の印刷された葉書
５，５′或いは通常の葉書の２倍のサイズのもの
５を中央より二つ折にして、透明感熱接着シート
をサンドイツチ状に挟み込み熱を加えて接着させ
て用いられる。この様にして積層された葉書は通
常の葉書１枚分として郵送される。受取人はこの
葉書の透明感熱接着シート部を手で引剥がす事に
より、葉書は透明ポリエチレンテレフタレートシ
ート１と熱可塑性樹脂層２から剥がれ、内面にあ
る印刷情報６を得る事が出来る。
The transparent heat-sensitive adhesive sheet of the present invention, in which heat-sensitive adhesive layers 4 and 4' are provided on both sides of the laminated sheet 3 shown in FIG. Alternatively, the postcard 5, which is twice the size of a normal postcard, is folded in half from the center, a transparent heat-sensitive adhesive sheet is sandwiched in a sandwich pattern, and heat is applied to adhere the postcard. The postcards stacked in this manner are mailed as one regular postcard. By manually peeling off the transparent heat-sensitive adhesive sheet portion of the postcard, the recipient can peel the postcard from the transparent polyethylene terephthalate sheet 1 and thermoplastic resin layer 2, and can obtain the printed information 6 on the inner surface.
本考案は、透明ポリエチレンテレフタレートシ
ート上に熱可塑性樹脂層２が溶融押出しされてい
るため、この界面に於ける接着は単に溶融時の濡
れ接触後の固着によるものに過ぎず、且つ透明ポ
リエチレンテレフタレートシート１と熱可塑性樹
脂層との組合せおよび熱可塑性樹脂層２に用いる
樹脂の混合割合により、自然剥離せず、且つ人が
手で容易に剥離できる適度の剥離強度に調整する
ことができる。このことから透明ポリエチレンテ
レフタレートシート１と熱可塑性樹脂層２との接
着界面は他の接着界面（透明ポリエチレンテレフ
タレート１と感熱接着剤層４、感熱接着剤層４と
印刷物５、熱可塑性樹脂層２と感熱接着剤層４′、
また第２図に示すシートを使用した場合には熱可
塑性樹脂層２と印刷物５、など）に比べて剥離が
容易であり、受取人が引き剥がす際に必ず透明ポ
リエチレンテレフタレートシート１と熱可塑性樹
脂層２との界面より剥がれることに特徴がある。 In the present invention, since the thermoplastic resin layer 2 is melt-extruded on the transparent polyethylene terephthalate sheet, the adhesion at this interface is simply due to adhesion after wet contact during melting, and the transparent polyethylene terephthalate sheet Depending on the combination of 1 and the thermoplastic resin layer and the mixing ratio of the resin used for the thermoplastic resin layer 2, it is possible to adjust the peel strength to an appropriate level that does not cause natural peeling and can be easily peeled off by hand. Therefore, the adhesive interface between the transparent polyethylene terephthalate sheet 1 and the thermoplastic resin layer 2 is different from the adhesive interface between the transparent polyethylene terephthalate sheet 1 and the thermoplastic resin layer 2 (transparent polyethylene terephthalate 1 and the heat-sensitive adhesive layer 4, the heat-sensitive adhesive layer 4 and the printed matter 5, and the thermoplastic resin layer 2). heat-sensitive adhesive layer 4',
In addition, when the sheet shown in Figure 2 is used, it is easier to peel off than the thermoplastic resin layer 2 and the printed matter 5, etc.), and when the recipient peels off the sheet, the transparent polyethylene terephthalate sheet 1 and the thermoplastic resin layer must be separated. It is characterized by peeling off from the interface with layer 2.
斯かる透明感熱接着シートを用いることにより
葉書が途中で自然剥離することなく、且つ受取人
が容易に葉書を剥離することが出来、しかも見開
いた後には夫々剥離面に奇麗な保護層が形成さ
れ、印刷情報が何等損なわれること無く再現され
る。 By using such a transparent heat-sensitive adhesive sheet, the postcard does not peel off naturally during the process, and the recipient can easily peel off the postcard. Moreover, after the postcard is opened, a beautiful protective layer is formed on the peeled surface of each postcard. , the printed information is reproduced without any damage.
更に感圧接着剤を使用していないので接着剤面
を保護する剥離紙が不要で廃棄物が発生しない。
見開いた後には容易に再接着することが出来ない
など、多くの利点を有する。 Furthermore, since no pressure-sensitive adhesive is used, there is no need for release paper to protect the adhesive surface, and no waste is generated.
It has many advantages, including the fact that it cannot be easily reattached after opening.
なお本考案の透明感熱接着シートの用途は必ず
しも葉書に限定されるものではなく、雑誌の綴じ
込みページなどの印刷、或いは筆記などの隠蔽用
に広く用いることも出来る。 Note that the use of the transparent heat-sensitive adhesive sheet of the present invention is not necessarily limited to postcards, but can also be widely used for printing bound pages of magazines, etc., or for concealing handwriting, etc.
厚さ16μのポリエチレンテレフタレートフイル
ム１の一方の面にエチレン−アクリル酸エチル共
重合体20重量部とポリエチレン80重量部とから成
る熱可塑性樹脂を20μ厚さで溶融押し出しラミネ
ートした積層シート３の両外面に感熱接着剤層４
として70℃で溶融熱接着するエチレン−酢酸ビニ
ル共重合体のホツトメルト型接着剤25g／m2を塗
工し透明感熱接着シート（第１図構成）を作製し
た。次いで第３図の如く、印刷物５，５′及び印
刷インキ６で透明感熱接着シートを両側より挟む
様にサンドイツチし、表面温度が100〜120℃の熱
ロールにて熱圧着し、充分に冷却した後、積層シ
ート３の透明プラスチツクシート１と熱可塑性樹
脂層２との界面より手剥がしをした処、容易に界
面より分離出来、印刷物の表面をオーバーラミさ
れた２片の印刷物を得ることが出来た。この際、
剥離強度を測定した処Ｔ型剥離力（剥離速度300
mm／分、20℃、65％RH）は25g／５cmであつた。
Both outer surfaces of a laminated sheet 3 made by melt-extruding and laminating a thermoplastic resin consisting of 20 parts by weight of ethylene-ethyl acrylate copolymer and 80 parts by weight of polyethylene to a thickness of 20 μm on one side of a polyethylene terephthalate film 1 having a thickness of 16 μm. Heat sensitive adhesive layer 4
A transparent heat-sensitive adhesive sheet (as shown in FIG. 1) was prepared by applying 25 g/m 2 of an ethylene-vinyl acetate copolymer hot-melt adhesive that melts and heat-bonds at 70°C. Next, as shown in Figure 3, the transparent heat-sensitive adhesive sheet was sandwiched between the printed matter 5 and 5' and the printing ink 6 from both sides, and the sheet was thermocompressed using a heat roll with a surface temperature of 100 to 120°C, and then cooled sufficiently. After that, when the laminated sheet 3 was manually peeled off from the interface between the transparent plastic sheet 1 and the thermoplastic resin layer 2, it was easily separated from the interface, and two pieces of printed matter were obtained with the surface of the printed matter overlaid. Ta. On this occasion,
Peel strength was measured using T-type peel force (peel speed 300
mm/min, 20°C, 65%RH) was 25g/5cm.
第１、第２図は本考案の全体構成を示す断面
図、第３図は本考案の透明感熱接着シートの具体
的使用状況を示す断面図である。
図中、１……透明プラスチツクシート、２……
熱可塑性樹脂層、３……積層シート、４，４′…
…感熱接着剤層、５，５′……印刷物、６……印
刷インキ。
1 and 2 are cross-sectional views showing the overall structure of the present invention, and FIG. 3 is a cross-sectional view showing specific usage conditions of the transparent heat-sensitive adhesive sheet of the present invention. In the figure, 1...transparent plastic sheet, 2...
Thermoplastic resin layer, 3... Laminated sheet, 4, 4'...
...Thermosensitive adhesive layer, 5,5'...Printed matter, 6...Printing ink.
Claims (1)
を透明感熱接着シートを介して熱接着により仮
接着することが出来、且つ容易に剥離すること
が出来る情報記録体に於いて、該透明感熱接着
シートが透明なポリエチレンテレフタレートシ
ート１の一方の面に溶融押出による熱可塑性樹
脂層２が自然剥離することなく、且つ容易に剥
離可能な状態に配設されて成る積層シート３の
両面若しくは熱可塑性樹脂２とは反対の面に
100℃以下で溶融接着する感熱接着剤層４，
４′が設けられた透明感熱接着シートであつて、
ポリエチレンテレフタレートシート１と熱可塑
性樹脂層２との界面のＴ型剥離強度が20℃、65
％RHの環境下、剥離速度300mm／分で50〜
5g／５cmであり、一旦剥離すると、そのまま
の状態では簡単には再接着しないことを特徴と
する透明感熱接着シート。 ２ 熱可塑性樹脂層２がエチレン−アクリル酸エ
チル共重合体及び／またはエチレン−酢酸ビニ
ル共重合体とポリエチレンとの混合物層である
請求項１の透明感熱接着シート。[Claims for Utility Model Registration] 1. An information recording body that can temporarily bond the information recording surfaces of printed matter with various types of printing to each other by thermal adhesion via a transparent heat-sensitive adhesive sheet, and that can be easily peeled off. The transparent heat-sensitive adhesive sheet is a laminate in which a thermoplastic resin layer 2 formed by melt extrusion is disposed on one side of a transparent polyethylene terephthalate sheet 1 in such a manner that it can be easily peeled off without naturally peeling off. On both sides of the sheet 3 or on the opposite side from the thermoplastic resin 2
Heat-sensitive adhesive layer 4 that melts and bonds at 100℃ or less,
4' is provided with a transparent heat-sensitive adhesive sheet,
The T-peel strength at the interface between the polyethylene terephthalate sheet 1 and the thermoplastic resin layer 2 is 65 at 20°C.
50~ at a peeling speed of 300mm/min in a %RH environment
A transparent heat-sensitive adhesive sheet weighing 5g/5cm, which is characterized by not being easily re-adhered once removed. 2. The transparent heat-sensitive adhesive sheet according to claim 1, wherein the thermoplastic resin layer 2 is a mixture layer of ethylene-ethyl acrylate copolymer and/or ethylene-vinyl acetate copolymer and polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988103293U JPH0512270Y2 (en) | 1988-08-05 | 1988-08-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988103293U JPH0512270Y2 (en) | 1988-08-05 | 1988-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0225546U JPH0225546U (en) | 1990-02-20 |
| JPH0512270Y2 true JPH0512270Y2 (en) | 1993-03-29 |
Family
ID=31333992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988103293U Expired - Lifetime JPH0512270Y2 (en) | 1988-08-05 | 1988-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0512270Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012092162A (en) * | 2010-10-25 | 2012-05-17 | Riso Kagaku Corp | Heat-sensitive adhesive sheet and recording medium |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2866674B2 (en) * | 1988-11-08 | 1999-03-08 | 大日本印刷株式会社 | Facing postcard and method of manufacturing facing postcard |
| JPH0718742Y2 (en) * | 1990-04-24 | 1995-05-01 | 株式会社配島 | Folded document adhesive tape |
| JP2657220B2 (en) * | 1990-06-08 | 1997-09-24 | 日本製紙 株式会社 | Heat-sensitive laminated sheet and recording medium using the same |
| JP2754279B2 (en) * | 1990-06-12 | 1998-05-20 | 日本製紙 株式会社 | Heat-sensitive adhesive sheet and information recording body using the same |
| JPH0673997B2 (en) * | 1990-06-14 | 1994-09-21 | 日本製紙株式会社 | Heat-sensitive laminated sheet and recording body using the same |
| JP2603166B2 (en) * | 1991-09-09 | 1997-04-23 | 日本製紙株式会社 | Heat-sensitive adhesive sheet capable of tearing away |
| JP3032625B2 (en) * | 1991-09-19 | 2000-04-17 | 日本製紙株式会社 | Transparent heat-sensitive adhesive sheet |
| JP2002146305A (en) * | 2000-11-10 | 2002-05-22 | Sumitomo Bakelite Co Ltd | Adhesive-coated oversheet for printed card |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201833U (en) * | 1985-06-07 | 1986-12-18 |
-
1988
- 1988-08-05 JP JP1988103293U patent/JPH0512270Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012092162A (en) * | 2010-10-25 | 2012-05-17 | Riso Kagaku Corp | Heat-sensitive adhesive sheet and recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0225546U (en) | 1990-02-20 |
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