JPS6126184Y2 - - Google Patents
Info
- Publication number
- JPS6126184Y2 JPS6126184Y2 JP4914681U JP4914681U JPS6126184Y2 JP S6126184 Y2 JPS6126184 Y2 JP S6126184Y2 JP 4914681 U JP4914681 U JP 4914681U JP 4914681 U JP4914681 U JP 4914681U JP S6126184 Y2 JPS6126184 Y2 JP S6126184Y2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- heat
- lid member
- sensitive adhesive
- pressure
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 22
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 17
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
Landscapes
- Containers Opened By Tearing Frangible Portions (AREA)
Description
【考案の詳細な説明】
本考案は、簡単な構成で開封履歴を明示し得る
易開封性容器蓋に関する。[Detailed Description of the Invention] The present invention relates to an easy-to-open container lid that can clearly indicate the opening history with a simple structure.
従来、予め形成された開口を有する蓋部材と、
蓋部材と接触すべき面に感圧接着性封緘層が設け
られ且つ該開口を覆うように施された開封片とか
ら成る易開封性容器蓋（特公昭47−23756号公報
参照）は、安価に且つ容易に製造でき、罐内部が
真空となる罐の用途には密封が確実で、しかも開
封が容易であるという利点を有しているが、開封
片の封緘層が感圧接着性であるため、一度開封し
た開封片を再封緘（リシール）することが可能で
あり、罐が開封されていず、従つて内容物の質等
が生じていないという保証（ピルフアプルーフ）
を需要者に与えることが困難であるという致命的
欠点を有している。 Conventionally, a lid member having a pre-formed opening;
An easy-to-open container lid (see Japanese Patent Publication No. 47-23756), which has a pressure-sensitive adhesive sealing layer on the surface that is to be in contact with the lid member and a tear-opening piece that covers the opening, is inexpensive. It is easy to manufacture and has the advantage of being securely sealed and easy to open for applications where the inside of the can is vacuumed, but the sealing layer of the opening piece is pressure-sensitive adhesive. Therefore, once opened, it is possible to reseal the package, which guarantees that the can has not been opened and that the quality of the contents has not deteriorated (pilf-proof).
The fatal drawback is that it is difficult to provide this to consumers.
本考案の目的は、このように感圧接着層を有す
る封緘被膜により蓋部材の開口が封緘された構造
の易開封性容器蓋に、構成が簡単でしかも開封履
歴を明示することが可能な機構を設け、これによ
り容器が開封されていず、従つて内容物の変質等
が生じていないという保証を需要者に与えること
にある。 The purpose of the present invention is to provide an easy-to-open container lid with a structure in which the opening of the lid member is sealed with a sealing film having a pressure-sensitive adhesive layer, and a mechanism that is simple in construction and that can clearly indicate the opening history. The purpose of this is to provide customers with assurance that the container has not been opened and that the contents have not deteriorated.
本考案によれば、予め形成された開口を有する
蓋部材と蓋部材と接触すべき面に感圧接着性封緘
層が設けられ且つ該開口を覆うように施された開
封片とから成る易開封性容器蓋において、該開封
片の把持部と前記開口との間の位置に、前記開封
片は感圧接着性封緘層を経ることなく蓋部材にヒ
ートシールされた部分を有し、該開封片の剥離後
に前記ヒートシール部分が蓋部材に残るようにし
た易開封性容器蓋が提供される。 According to the present invention, the easy-to-open seal is made up of a lid member having a pre-formed opening and a tearable piece having a pressure-sensitive adhesive sealing layer provided on the surface that is to be in contact with the lid member and covering the opening. In the sexual container lid, the opening piece has a portion heat-sealed to the lid member without passing through a pressure-sensitive adhesive sealing layer, at a position between the gripping part of the opening piece and the opening, Provided is an easy-open container lid in which the heat-sealed portion remains on the lid member after peeling off.
本考案を以下に添付図面に基づき、詳細に説明
する。 The present invention will be described in detail below with reference to the accompanying drawings.
第１図に示す通り本考案の易開封性容器蓋は全
体として１で示す蓋部材と全体として２で示す開
封片とから成つている。蓋部材１は剛性のある材
料、例えば塗装乃至は未塗装の金属シールから成
つており、その中央部の任意の位置に、内容物取
出用の予め形成された開口３を有している。この
蓋部材１の周辺部には、罐胴（図示せず）との間
に二重巻締を行うためのフランジ部４が設けられ
ている。開封片２は、第２図の断面図に詳細に示
すように、基体５と、蓋部材１と接触する側に設
けられた感圧接着性封緘層６とから成つており、
開封片２は開口３を覆うように、蓋部材１の開口
周辺部に感圧接着層６を介して密着される。この
易開封性容器蓋を罐胴と巻締めて、罐の内部が真
空となる罐詰の用途に使用するときには、開封片
２にはこれを罐の内側に引張る力が主に作用し、
かくして封緘面には剪断力のみが作用する結果と
して、感圧接着層６の剥離力が比較的小さい場合
にも、優れた密封性能が保持されることになる。
開封に際して、開封片２の一端、即ち把持部７を
撮み上方に持上げると感圧接着層６と蓋部材１の
表面との間で容易に剥離が進行して開封が行われ
るが、一且剥離した開封片２を蓋部材１に押圧す
ると、接着層６が感圧接着性を有しているため再
封緘が行われ、開封履歴が明らかでないのでピル
フアー・プルーフ機能が得られないことが問題で
ある。 As shown in FIG. 1, the easy-to-open container lid of the present invention consists of a lid member generally designated by 1 and an opening piece generally designated by 2. The lid member 1 is made of a rigid material, for example a painted or unpainted metal seal, and has a pre-formed opening 3 at an arbitrary position in its central part for access to the contents. A flange portion 4 is provided around the periphery of the lid member 1 for double seaming with the can body (not shown). As shown in detail in the cross-sectional view of FIG. 2, the opening piece 2 consists of a base body 5 and a pressure-sensitive adhesive sealing layer 6 provided on the side that contacts the lid member 1.
The unsealing piece 2 is tightly attached to the opening periphery of the lid member 1 via the pressure-sensitive adhesive layer 6 so as to cover the opening 3. When this easy-to-open container lid is wrapped around the can body and used for canning applications where the inside of the can is vacuumed, a force that pulls the opening piece 2 toward the inside of the can mainly acts on the opening piece 2.
In this way, as a result of only shearing force acting on the sealing surface, excellent sealing performance is maintained even when the peeling force of the pressure-sensitive adhesive layer 6 is relatively small.
When unsealing, when one end of the unsealing piece 2, that is, the gripping part 7, is picked up and lifted upward, peeling easily progresses between the pressure-sensitive adhesive layer 6 and the surface of the lid member 1, and the unsealing is performed. In addition, when the peeled opening piece 2 is pressed against the lid member 1, the adhesive layer 6 has pressure-sensitive adhesive properties, so it is resealed, and since the opening history is not clear, the pill-proof function may not be obtained. That's a problem.
本考案においては、この開封片２の把持部７と
開口３との間の位置に、感圧接着性封緘層６を経
ることなく、開封片２が直接蓋部材１にヒートシ
ールされた部分８を設ける。即ち、このヒートシ
ール部分８では感圧接着性封緘層６が欠如してお
り、このヒートシール部分８において、基体５の
蓋部材１に対面する側は少なくともヒートシール
可能な樹脂で構成されている。 In the present invention, a portion 8 where the opening piece 2 is directly heat-sealed to the lid member 1 without passing through the pressure-sensitive adhesive sealing layer 6 is provided between the grip portion 7 and the opening 3 of the opening piece 2. will be established. That is, this heat-sealed portion 8 lacks the pressure-sensitive adhesive sealing layer 6, and in this heat-sealed portion 8, the side of the base 5 facing the lid member 1 is made of at least a heat-sealable resin. .
好適には、このヒートシール部分８の周囲は、
スコア９或いはミシン目のような弱化された線で
区画されており、且つヒートシール部分８の剥離
強度はこの弱化線９の破断強度よりも大となるよ
うに設定されている。 Preferably, the periphery of this heat-sealed portion 8 is
It is divided by weakened lines such as scores 9 or perforations, and the peel strength of the heat-sealed portion 8 is set to be greater than the breaking strength of the weakened lines 9.
しかして、本考案の容器蓋を装着した罐詰製品
を開封するには、開封片２の把持部７を指で撮ん
で上方に引張り上げることにより、開封片２の感
圧接着性封緘層６と蓋部材１との界面で剥離が進
行する。この際、本考案においては、開封片２の
把持部７と開口３との間にヒートシール部分８が
存在し、しかもヒートシール部分８のシール強度
はその弱化された輪カク９の破断強度よりも強く
設定されているため、開口３の部分での開封片２
の剥離は、ヒートシール部分８の輪カク９を破断
した後始めて可能となり、これにより、開封片２
の引剥しが既に行われたことが容易に確認され
る。かくして、本考案によれば、この容器蓋を装
着した包装体の購入者に、容器蓋に開封されてい
ず、従つて内容物の目減りや変質が生じていない
という保証を与えることが可能となる。また、こ
のヒートシール部分８や弱化された輪カク９は、
容器蓋開口周辺部の外方に設けられているため、
開口の密封性能に悪影響を及ぼさないことも顕著
な特徴であり、更にピルフアープルーフ機能のた
めに格別の部材を必要とせず、構成が簡単である
ことも本考案の利点である。 Therefore, in order to open a canned product equipped with the container lid of the present invention, the pressure-sensitive adhesive sealing layer 6 of the opening piece 2 is removed by grasping the grip 7 of the opening piece 2 with your finger and pulling it upward. Peeling progresses at the interface between the lid member 1 and the lid member 1. At this time, in the present invention, there is a heat-sealed portion 8 between the grip portion 7 of the opening piece 2 and the opening 3, and the sealing strength of the heat-sealed portion 8 is greater than the breaking strength of the weakened ring 9. is also set strongly, so the opening piece 2 at the opening 3 part
can be peeled off only after the ring 9 of the heat-sealed part 8 is broken, and as a result, the opening piece 2 can be peeled off.
It is easily confirmed that the peeling has already taken place. Thus, according to the present invention, it is possible to guarantee the purchaser of a package equipped with the container lid that the container lid has not been opened and that the contents have not deteriorated or deteriorated in quality. . In addition, this heat-sealed portion 8 and the weakened ring 9 are
Because it is installed outside the area around the container lid opening,
Another notable feature is that the sealing performance of the opening is not adversely affected, and another advantage of the present invention is that no special member is required for the pilfer-proof function, and the structure is simple.
本考案において開封片２の基体５は、少なくと
もヒートシール部８においてヒートシール性を有
することが必要である。かかる見地から、基体５
としては、ポリエチレン、ポリプロピレン、エチ
レン−酢酸ビニル共重合体、ナイロン類等のヒー
トシール可能な熱可塑性樹脂フイルム単独或い
は、該フイルムと金属箔、二軸延伸ポリエチレン
テレフタレートフイルムのような高強度プラスチ
ツクフイルムとの積層体が使用される。好適な開
封片の基体５は、第３図に示す通り、二軸延伸ポ
リエステルフイルム外層１０、ガスバリヤーとし
ての金属蒸着層１１及びヒートシーラントのフイ
ルム層１２から成つている。ヒートシール部８の
輪カクにスコア或いはミシン目等の弱化線９を設
ける代りに、ヒートシール部８のエツジが力学的
に弱い構造となるのを利用して、開封片２のヒー
トシール部周囲での破断を行つてもよい。 In the present invention, the base body 5 of the opening piece 2 needs to have heat-sealing properties at least in the heat-sealing portion 8. From this point of view, the base 5
Examples include heat-sealable thermoplastic resin films such as polyethylene, polypropylene, ethylene-vinyl acetate copolymers, and nylons, alone, or together with metal foils and high-strength plastic films such as biaxially oriented polyethylene terephthalate films. laminates are used. The base body 5 of the preferred opening strip, as shown in FIG. 3, consists of an outer layer 10 of biaxially oriented polyester film, a metallized layer 11 as a gas barrier, and a film layer 12 of heat sealant. Instead of providing a weakening line 9 such as a score or perforation in the ring of the heat-sealed portion 8, the edge of the heat-sealed portion 8 has a mechanically weak structure, so that the area around the heat-sealed portion of the opening piece 2 is The rupture may be performed at
感圧接着性封緘層としては、それ自体公知の感
圧接着剤の何れをも用いることができるが、一般
に、剥離力が1.0乃至3.0Kg／15mm巾、特に1.6乃至
2.0Kg／15mm巾の範囲にあるものが、密封性と易
剥離性との組合せ特性の点で好適である。好適な
感圧接着剤はスチレン−ブタジエン・ブロツク共
重合体、スチレン−イソプレン・ブロツク共重合
体或いは粘弾性アクリル系共重合体をベースとす
る接着剤である。 As the pressure-sensitive adhesive sealing layer, any pressure-sensitive adhesive known per se can be used, but in general, it has a peeling force of 1.0 to 3.0 kg/15 mm width, particularly 1.6 to 3.0 kg/15 mm width.
A material having a width of 2.0 kg/15 mm is suitable in terms of the combination of sealability and easy peelability. Suitable pressure sensitive adhesives are adhesives based on styrene-butadiene block copolymers, styrene-isoprene block copolymers or viscoelastic acrylic copolymers.
蓋部材は、薄鋼板（ブラツクプレート）ブリ
キ、電解クロム酸処理鋼板等の表面処理鋼板（テ
イン・フリー・スチール）や、アルミのような軽
金属板から構成することができ、これらの金属板
はそれ自体公知の塗料で塗装した状態で蓋に用い
るのがよい。 The lid member can be composed of a thin steel plate (black plate), a surface-treated steel plate (tain-free steel) such as a tin plate, an electrolytic chromic acid treated steel plate, or a light metal plate such as aluminum. It is preferable to use the lid after painting it with a paint that is known per se.
第１図は本考案の易開封性容器蓋の斜視図、第
２図は第１図の蓋の線−における拡大断面
図、第３図は第２図の開封片の基体の断面構造を
より詳細に示した拡大断面図である。
引照数字１は蓋部材、２は開封片、３は開口、
６は感圧接着層、８はヒートシール部、９は弱化
線である。
Fig. 1 is a perspective view of the easy-to-open container lid of the present invention, Fig. 2 is an enlarged sectional view taken along the line of the lid in Fig. 1, and Fig. 3 is a closer view of the cross-sectional structure of the base of the opening piece in Fig. 2. It is an enlarged sectional view showing details. Reference number 1 is the lid member, 2 is the opening piece, 3 is the opening,
6 is a pressure-sensitive adhesive layer, 8 is a heat-sealed portion, and 9 is a weakening line.
Claims (1)
材と接触すべき面に感圧接着性封緘層が設けら
れ且つ該開口を覆うように施された開封片とか
ら成る易開封性容器蓋において、 該開封片の把持部と前記開口との間の位置
に、前記開封片は感圧接着性封緘層を経ること
なく蓋部材にヒートシールされた部分を有し、
該開封片の剥離後に前記ヒートシール部分が蓋
部材に残るようにした易開封性容器蓋。 (2) 前記開封片は前記ヒートシール部分において
感圧接着性封緘層を欠如しており且つこのヒー
トシール部分において該開封片の蓋部材に対面
する側は少なくともヒートシール可能な樹脂で
構成されている実用新案登録請求の範囲第１項
記載の容器蓋。 (3) 前記ヒートシール部分はその周囲に弱化され
た輪カクを有し、ヒートシール部分のシール強
度は輪カクの破断強度よりも大となるように設
定されている実用新案登録請求の範囲第１項記
載の容器蓋。[Scope of Claim for Utility Model Registration] (1) A lid member having a pre-formed opening, and a pressure-sensitive adhesive sealing layer provided on the surface that is to come into contact with the lid member, and an opening applied to cover the opening. In the easy-to-open container lid, the opening piece has a portion that is heat-sealed to the lid member without passing through a pressure-sensitive adhesive sealing layer, at a position between the gripping part of the opening piece and the opening. have,
An easy-to-open container lid, wherein the heat-sealed portion remains on the lid member after the opening piece is peeled off. (2) The opening piece lacks a pressure-sensitive adhesive sealing layer in the heat-sealing portion, and at least the side of the opening piece facing the lid member in the heat-sealing portion is made of a heat-sealable resin. A container lid according to claim 1 of the utility model registration claim. (3) The heat-sealed portion has a weakened ring around it, and the sealing strength of the heat-sealed portion is set to be greater than the breaking strength of the ring. The container lid described in item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4914681U JPS6126184Y2 (en) | 1981-04-07 | 1981-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4914681U JPS6126184Y2 (en) | 1981-04-07 | 1981-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57162129U JPS57162129U (en) | 1982-10-12 |
| JPS6126184Y2 true JPS6126184Y2 (en) | 1986-08-06 |
Family
ID=29845869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4914681U Expired JPS6126184Y2 (en) | 1981-04-07 | 1981-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6126184Y2 (en) |
-
1981
- 1981-04-07 JP JP4914681U patent/JPS6126184Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57162129U (en) | 1982-10-12 |
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