JPS6334920Y2 - - Google Patents

Info

Publication number
JPS6334920Y2
JPS6334920Y2 JP1985130962U JP13096285U JPS6334920Y2 JP S6334920 Y2 JPS6334920 Y2 JP S6334920Y2 JP 1985130962 U JP1985130962 U JP 1985130962U JP 13096285 U JP13096285 U JP 13096285U JP S6334920 Y2 JPS6334920 Y2 JP S6334920Y2
Authority
JP
Japan
Prior art keywords
layer
resin
film
base film
adhesive
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
Application number
JP1985130962U
Other languages
Japanese (ja)
Other versions
JPS6238143U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985130962U priority Critical patent/JPS6334920Y2/ja
Publication of JPS6238143U publication Critical patent/JPS6238143U/ja
Application granted granted Critical
Publication of JPS6334920Y2 publication Critical patent/JPS6334920Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Closures For Containers (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、防湿性を有する積層フイルム、ヒー
トシールを施し、このヒートシール部分を剥離す
ると文字、模様が現出する不正開封防止効果を有
する積層フイルムに関するものである。
[Detailed description of the invention] [Industrial application field] This invention has a moisture-proof laminated film and heat sealing, and when the heat sealed part is peeled off, letters and patterns are revealed, which has an tamper-proofing effect. It relates to laminated films.

〔従来技術およびその問題点〕[Prior art and its problems]

従来から、包装容器の開封判別ラベルは、各種
存在し、例えば実公昭57−27740号公報に示され
るように、粘着層を設けた基材の裏面に部分的に
剥離樹脂層を設け、この下面に全面印刷層を設け
た構成が記載されており、前記ラベルわ容器の開
封部に貼着し、剥離すると剥離樹脂層と基材間で
のみ剥離し、印刷層が基材に付着せず、開封した
ことが判別できる。
Conventionally, there have been various types of tamper identification labels for packaging containers. For example, as shown in Japanese Utility Model Publication No. 57-27740, a peelable resin layer is partially provided on the back side of a base material provided with an adhesive layer, and this lower surface is describes a configuration in which a printed layer is provided on the entire surface, and when the label is attached to the unsealed part of the container and peeled off, the peeling occurs only between the peelable resin layer and the base material, and the printed layer does not adhere to the base material. It can be determined that the package has been opened.

しかしながら、前記剥離樹脂層の処理が予じめ
判別されたのでは、所望の開封状態にならないよ
うに開封を施されるおそれがある。
However, if the treatment of the release resin layer is determined in advance, there is a risk that the package will be opened in a way that does not result in the desired opening state.

また、単に剥離樹脂層の存在のみで全面印刷層
を部分的に剥離するのであれば、普通に開封して
も、ていねいに作業されると復元されるおそれが
あつた。
Furthermore, if the entire printed layer is partially peeled off simply due to the presence of the release resin layer, there is a risk that it will be restored if carefully handled even if the package is opened normally.

〔解決しようとする問題点〕[Problem to be solved]

本考案は、防湿性を有し、しかもヒートシール
するとそのヒートシール部分を開封すると文字、
模様のパターンが明確に現出するが、開封前は、
パターン処理が施してあるかどうか明確でない積
層フイルムを得ることである。
This invention has moisture-proof properties, and when it is heat-sealed, when the heat-sealed part is opened, the text appears.
The pattern appears clearly, but before opening,
The purpose is to obtain a laminated film in which it is unclear whether or not it has been subjected to pattern processing.

〔問題点を解決するための手段〕[Means for solving problems]

基材フイルムの裏面に部分的にセルロース系樹
脂とアクリル系樹脂との混合樹脂からなる剥離ニ
ス層、ポリウレタン系樹脂をバインダーとした全
面印刷層を設けた表面層と、熱接着性フイルムの
表面全体にアルミ蒸着層を設けた裏面層とを、表
面層の印刷層と裏面層のアルミ蒸着層とを接着剤
層を介して貼合せることにより解決した。
A peeling varnish layer partially made of a mixed resin of cellulose resin and acrylic resin on the back side of the base film, a surface layer with a full printing layer using polyurethane resin as a binder, and the entire surface of the thermally adhesive film. This problem was solved by bonding the printed layer of the surface layer and the aluminum vapor-deposited layer of the back layer via an adhesive layer.

〔作用〕[Effect]

上記構成からなるので、経時後でもシール部分
の剥離ニス層の剥離が明確であるが、基材フイル
ムの表面からの剥離ニス層の判読が困難である。
With the above structure, the peeling varnish layer of the seal portion is clearly peeled off even after a period of time, but it is difficult to read the peeling varnish layer from the surface of the base film.

また、開封の際の剥離部分が特定されるので、
再封による再現が不可能となる。
In addition, since the peeled part when opening the package is identified,
It becomes impossible to reproduce by resealing.

〔実施例〕〔Example〕

本発明の実施例について説明する。 Examples of the present invention will be described.

第1図に示すように、基材フイルム1の裏面に
部分的にセルロース系樹脂とアクリル系樹脂との
混合樹脂からなる剥離ニス層2、ポリウレタン系
樹脂をバインダーとした全面印刷層3を設けた表
面層Aと熱接着性フイルム4の表面全体にアルミ
蒸着層5を設けた裏面層Bとを、表面層Aの印刷
層3と裏面層Bのアルミ蒸着層5とを接着剤層6
を介して貼合せてなる積層フイルムである。
As shown in FIG. 1, a release varnish layer 2 made of a mixed resin of cellulose resin and acrylic resin and a full-surface printing layer 3 made of a polyurethane resin as a binder were partially provided on the back side of a base film 1. The surface layer A and the back layer B in which the aluminum vapor deposited layer 5 is provided on the entire surface of the thermally adhesive film 4 are bonded together, and the printed layer 3 of the surface layer A and the aluminum vapor deposited layer 5 of the back layer B are bonded together by an adhesive layer 6.
It is a laminated film that is laminated together with

ここで基材フイルム1としては、表面処理を施
さないポリエチレンテレフタレート、表面処理を
施したポリエチレンテレフタレート、延伸ポリプ
ロピレンがあるが、剥離効果としては、表面処理
を施さないポリエチレンテレフタレートフイルム
が好適である。
Here, as the base film 1, there are polyethylene terephthalate without surface treatment, polyethylene terephthalate with surface treatment, and stretched polypropylene, but polyethylene terephthalate film without surface treatment is suitable for the release effect.

剥離ニス層2は、セルロース系樹脂とアクリル
系樹脂との混合樹脂からなるが、その混合比は、
重量比で3:7〜7:3の範囲が剥離性、表面か
らの剥離ニス層の判別性から好ましい。さらに上
記混合樹脂に少量のシリカ粉末を加えると剥離性
がさらに向上する。
The release varnish layer 2 is made of a mixed resin of cellulose resin and acrylic resin, and the mixing ratio is as follows:
A weight ratio in the range of 3:7 to 7:3 is preferable from the viewpoint of releasability and distinguishability of the peelable varnish layer from the surface. Furthermore, when a small amount of silica powder is added to the above mixed resin, the releasability is further improved.

次に印刷層3は、ポリウレタン系樹脂をバイン
ダーとしたインキで、これにより、基材フイル
ム、および剥離ニスとの経時的変化がなく、かつ
基材フイルムとの接着性が優れ、剥離ニス層部分
での剥離現象が確実に行なわれる。そして前記イ
ンキ中にさらにロジンを添加すると内部凝集力が
高くなり、剥離ニス層部分での剥離がより正確と
なつた。
Next, the printing layer 3 is an ink with a polyurethane resin as a binder, which does not change over time with the base film and release varnish, and has excellent adhesion to the base film, and the release varnish layer part The peeling phenomenon is ensured. When rosin was further added to the ink, the internal cohesive force was increased, and the peeling at the peeling varnish layer became more accurate.

また、熱接着性フイルム4は、ポリエチレン、
ポリプロピレン等のヒートシール性のあるフイル
ムであればよい。
Further, the thermal adhesive film 4 is made of polyethylene,
Any film with heat sealability such as polypropylene may be used.

第1図に示した積層フイルムの熱接着性フイル
ム同士をヒートシールして、そのヒートシール部
分を剥離すると第2図に示すように、基材フイル
ム1と剥離ニス層2との接着力より、熱接着性フ
イルム4とアルミ蒸着層5との接着力が大きいの
で、基材フイルム1から剥離ニス層2から剥離す
ると共に、基材フイルム1と印刷層3の接着力
が、熱接着性フイルム4とアルミ蒸着層5との接
着力より大きいので、剥離ニス層2以外の部分で
は、アルミ蒸着層5が表面層A側に剥離する。
When the heat-adhesive films of the laminated film shown in FIG. 1 are heat-sealed and the heat-sealed portion is peeled off, as shown in FIG. 2, due to the adhesive force between the base film 1 and the release varnish layer 2, Since the adhesive force between the thermal adhesive film 4 and the aluminum vapor-deposited layer 5 is strong, the adhesive force between the base film 1 and the printing layer 3 is strong enough to allow the thermal adhesive film 4 to be peeled off from the release varnish layer 2 from the base film 1. Since the adhesion force between the aluminum evaporated layer 5 and the aluminum evaporated layer 5 is greater than that of the aluminum evaporated layer 5, the aluminum evaporated layer 5 is peeled off toward the surface layer A in areas other than the release varnish layer 2.

このように、全面に設けた印刷層3およびアル
ミ蒸着層5の両層とも部分的に剥離するため再現
不可能となる。
In this way, both the printed layer 3 and the aluminum vapor-deposited layer 5, which were provided on the entire surface, are partially peeled off, making it impossible to reproduce.

〔効果〕〔effect〕

本考案の積層フイルムは、以上の構成からなる
ので、防湿性が2g/m2以下でフイルムの性能が
優れているのは勿論、基材フイルムと剥離ニス層
との剥離性および印刷層と基材フイルムおよび剥
離ニス層との接着力の経時的変化が少ないので、
剥離性が安定すると共に剥離ニス層の部分で正確
に印刷層、アルミ蒸着層の両層が部分的に剥離
し、再現性がないので不正に開封したことが容易
に判別することができる。
Since the laminated film of the present invention has the above-mentioned structure, it not only has excellent film performance with moisture resistance of 2 g/m 2 or less, but also has excellent releasability between the base film and the release varnish layer and between the printing layer and the substrate. Because there is little change in adhesive strength with the material film and release varnish layer over time,
The peelability is stable, and both the printed layer and the aluminum vapor deposited layer are partially peeled off accurately at the release varnish layer, and since there is no reproducibility, it can be easily determined that the package has been opened fraudulently.

また、剥離ニス層の有無は、基材フイルム表面
からは判別し難く、不正開封の防止の効果が一層
増大する。
Furthermore, the presence or absence of the release varnish layer is difficult to discern from the surface of the base film, further increasing the effectiveness of preventing unauthorized opening.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は、実施例を示すもので、第1図は断面
図、第2図はシール部分を開封した状態を示す断
面説明図である。 A……表面層、B……裏面層、1……基材フイ
ルム、2……剥離ニス層、3……印刷層、4……
熱接着性フイルム、5……アルミ蒸着層、6……
接着剤層。
The drawings show an embodiment, and FIG. 1 is a sectional view, and FIG. 2 is an explanatory sectional view showing a state in which the seal portion is opened. A... Surface layer, B... Back layer, 1... Base film, 2... Peeling varnish layer, 3... Printing layer, 4...
Thermal adhesive film, 5... Aluminum vapor deposited layer, 6...
adhesive layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 基材フイルムの裏面にセルロース系樹脂とアク
リル系樹脂との混合樹脂からなる部分的に設けた
剥離ニス層、ポリウレタン系樹脂をバインダーと
した全面印刷層を設けた表面層と、表面全体にア
ルミ蒸着層を設けた熱接着性フイルムからなる裏
面層とを積層してなる不正開封防止用積層フイル
ム。
A partially removable varnish layer made of a mixed resin of cellulose resin and acrylic resin on the back side of the base film, a surface layer with a full printing layer using polyurethane resin as a binder, and aluminum vapor deposition on the entire surface. A tamper-proof laminated film made by laminating a back layer made of a heat-adhesive film.
JP1985130962U 1985-08-28 1985-08-28 Expired JPS6334920Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985130962U JPS6334920Y2 (en) 1985-08-28 1985-08-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985130962U JPS6334920Y2 (en) 1985-08-28 1985-08-28

Publications (2)

Publication Number Publication Date
JPS6238143U JPS6238143U (en) 1987-03-06
JPS6334920Y2 true JPS6334920Y2 (en) 1988-09-16

Family

ID=31028963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985130962U Expired JPS6334920Y2 (en) 1985-08-28 1985-08-28

Country Status (1)

Country Link
JP (1) JPS6334920Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591077B2 (en) * 1975-10-11 1984-01-10 株式会社日立製作所 Kouriyudendo Kinoseigiyosouchi

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101803U (en) * 1972-12-23 1974-09-02
JPS591077U (en) * 1982-06-26 1984-01-06 エフエスケ−株式会社 Reusable adhesive labels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591077B2 (en) * 1975-10-11 1984-01-10 株式会社日立製作所 Kouriyudendo Kinoseigiyosouchi

Also Published As

Publication number Publication date
JPS6238143U (en) 1987-03-06

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