JPH0487952A - Heat shrinkable lid and manufacture therefor - Google Patents
Heat shrinkable lid and manufacture thereforInfo
- Publication number
- JPH0487952A JPH0487952A JP2200495A JP20049590A JPH0487952A JP H0487952 A JPH0487952 A JP H0487952A JP 2200495 A JP2200495 A JP 2200495A JP 20049590 A JP20049590 A JP 20049590A JP H0487952 A JPH0487952 A JP H0487952A
- Authority
- JP
- Japan
- Prior art keywords
- lid
- top wall
- skirt
- deteriorated
- peripheral edge
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 11
- 239000000057 synthetic resin Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 10
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 230000002087 whitening effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Packages (AREA)
- Closures For Containers (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、包装容器の蓋、特に熱収縮性蓋とその製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lid for a packaging container, particularly a heat-shrinkable lid and a method for manufacturing the same.
包装容器に蓋を取り付ｋｊる手段の一つとして、延伸フ
ィルムの熱収縮性を利用して蓋を加熱収縮させ、容器開
口部の周辺に固着する方法がある。One method for attaching a lid to a packaging container is to heat-shrink the lid by utilizing the heat-shrinkability of a stretched film and fix it around the opening of the container.
この方法は、蓋の取り付けが容易であり、かつ強固に取
り付けることができる利点がある。This method has the advantage that the lid can be easily attached and firmly attached.
しかしながら、このような熱収縮性蓋は、容器の開口部
周辺に、合成樹脂の収縮によって取りイ」けるものであ
るから、取り外すのが大変難しく、そのままでは、例え
ばはさみで切るなどの操作が必要となる。However, since such heat-shrinkable lids are removed by shrinking synthetic resin around the opening of the container, they are very difficult to remove, and if left as is, operations such as cutting with scissors are required. becomes.
そのため、予め蓋の周縁にノツチを設けたり、タブを設
けたりしているが、前者は、熱収縮前の蓋の取り扱い時
に破損したり、熱収縮後にもノツチから亀裂が生しるな
どの問題があり、後者は、熱収縮によって変形してしま
い、引き裂きのために指でつまむのが困難になる問題が
ある。For this reason, notches or tabs are provided on the periphery of the lid in advance, but the former causes problems such as damage when handling the lid before heat shrinking, and cracks forming from the notch even after heat shrinking. The latter has the problem of being deformed by heat shrinkage and tearing, making it difficult to pinch with fingers.
そこで、この発明の課題は、ノツチやタブなしに手で簡
単に開封することができる熱収縮性蓋及びその製造方法
を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a heat-shrinkable lid that can be easily opened by hand without any notches or tabs, and a method for manufacturing the same.
上記の課題を解決するため、第１の発明においては、フ
レキシブルな延伸合成樹脂シートを成形して頂壁とその
周縁から垂下するスカート部を形成し、このスカート部
の周縁に劣化部を形成したのである。In order to solve the above problems, in the first invention, a flexible stretched synthetic resin sheet is molded to form a skirt portion that hangs down from the top wall and its periphery, and a deteriorated portion is formed on the periphery of this skirt portion. It is.
また、第２の発明においては、フレキシブルな延伸合成
樹脂シートを成形して頂壁とその周縁から垂下するスカ
ート部を形成し、同時にこのスカト部の周縁部に多数の
突条を形成し、この突条に対応する部分を全周にわたっ
て切断し、切断部近辺に劣化部を形成して熱収縮性蓋を
作成したのである。Further, in the second invention, a flexible stretched synthetic resin sheet is molded to form a skirt portion that hangs down from the top wall and its periphery, and at the same time, a large number of protrusions are formed on the periphery of the skirt portion. A heat-shrinkable lid was created by cutting the entire circumference of the part corresponding to the protrusion and forming a deteriorated part near the cut part.
さらに、第３の発明においては、フレキシブルな延伸合
成樹脂シートを成形して頂壁とその周縁から垂下するス
カート部を形成し、このスカート部の周縁部を凹凸を有
する部材で打撃を与えて劣化部を形成し、この劣化部に
対応する部分を全周にわたって切断して熱収縮性蓋を作
成したのである。Furthermore, in the third invention, a flexible stretched synthetic resin sheet is molded to form a skirt portion that hangs down from the top wall and its periphery, and the periphery of the skirt portion is struck with a member having unevenness to prevent deterioration. A heat-shrinkable lid was created by cutting a portion corresponding to the deteriorated portion around the entire circumference.
スカート部の周縁に劣化部を形成することによって、そ
の部分が弱くなるので手で引き裂き易くなり、蓋を破断
する手掛りを簡単に形成することができる。By forming a deteriorated portion on the peripheral edge of the skirt portion, the deteriorated portion becomes weak and can be easily torn by hand, making it possible to easily form a handhold for breaking the lid.
また、スカート部に予め突条を形成しておき、その部分
を切断すると、切断部近辺に劣化部が形成される。Furthermore, if a protrusion is formed in advance on the skirt portion and the protrusion is cut, a deteriorated portion will be formed near the cut portion.
さらに、凹凸を設けた部材によってスカート部に打撃を
与えると簡単に劣化部を形成することができる。Furthermore, a deteriorated portion can be easily formed by applying a blow to the skirt portion using a member provided with irregularities.
はじめに、この発明の製造方法の実施例を添付図面に基
づいて説明する。First, an embodiment of the manufacturing method of the present invention will be described based on the accompanying drawings.
まず、フレキシブルな延伸合成樹脂フィルム又はシート
を成形して、第１図及び第２図に示すような蓋材１０を
作成する。この蓋材１０は、頂壁１１と、この頂壁１１
の周縁から垂下するスカート部１２を有し、このスカー
ト部１２は、上部かは一直筒状で、下部がテーパ状にな
っており、このテーバ状下部に、中心方向の突条１３が
全周にわたって多数設けられている。First, a flexible stretched synthetic resin film or sheet is molded to create a lid material 10 as shown in FIGS. 1 and 2. This lid material 10 includes a top wall 11 and a top wall 11.
The skirt part 12 has a straight cylindrical upper part and a tapered lower part, and a protrusion 13 extending toward the center extends around the entire circumference of the tapered lower part. There are many locations throughout the area.
この突条１３の形状は、第３図の（イ）及び第４図に示
すように、五角錐が好ましいが、円錐を縦に２分割した
ようなものでもよい。なお、前記スカート部１２は、全
体が外側にテーパ状に拡がるようにしておいてもよく、
或は第３図の（ロ）に示すように、テーパ状下部が水平
になっていてもよい。The shape of the protrusion 13 is preferably a pentagonal pyramid, as shown in FIGS. 3A and 4, but it may also be shaped like a cone divided into two vertically. Note that the skirt portion 12 may be configured so that the entire skirt portion 12 expands outward in a tapered shape.
Alternatively, the tapered lower portion may be horizontal, as shown in FIG. 3(b).
また蓋材１０の全体形状も、図示のような丸形のほか、
多角形状等任意に選択可能である。In addition, the overall shape of the lid material 10 may be round as shown in the figure, or
Any polygonal shape etc. can be selected.
次に、前記蓋材１０を、第５図のように、台座Ａの上部
に複数個積み重ねて載置し、円筒形カッタＢによって、
突条１３の中途部分を縦方向に切断する。即ち、カッタ
Ｂの切刃の径Ｃが丁度突条１３の中途部分の径に相当す
るようにしておき、台座Ａに対してカッタＢを下降させ
る。そして、第６図に示すように、カッタＢの切刃が突
条１３に当ると、蓋材１０の材料の屈曲性によって、突
条１３の部分が下方に押し下げられる。このとき、第７
図に示すように、突条１３の山頂が押圧されて屈曲部１
４が偏平に押しつぶされるように変形しながら切断され
る。このため、突条１３の山頂又は谷の部分に白化が生
じ、切断部の周縁から内側に延びる劣化部１５が形成さ
れる。Next, as shown in FIG.
The midway portion of the protrusion 13 is cut in the longitudinal direction. That is, the cutter B is lowered relative to the pedestal A with the diameter C of the cutting edge of the cutter B exactly corresponding to the diameter of the midway portion of the protrusion 13. As shown in FIG. 6, when the cutting edge of the cutter B hits the protrusion 13, the protrusion 13 is pushed downward due to the flexibility of the material of the lid member 10. At this time, the seventh
As shown in the figure, the peak of the protrusion 13 is pressed and the bent portion 1
4 is cut while deforming as if being crushed into a flat shape. For this reason, whitening occurs at the peak or valley portion of the protrusion 13, and a deteriorated portion 15 is formed extending inward from the periphery of the cut portion.
劣化部１５の形成方法は上記に限らない。例えば第８図
に示すように、筒状部材りの下縁に鋸歯形又は歯車形の
凹凸Ｅを設けたものを用い、第９図に示すように、蓋材
１０には前述のような突条１３を全く設けず、スカート
部１２の下部１３′をフラットなテーパ状とし、この蓋
材１０を台座Ａに載置して、前記筒状部材りを急下降さ
せテーバ状下部１３′を強く押圧すると、凹凸Ｅの山頂
部によって合成樹脂シート又はフィルムに劣化部が形成
される。なお、部材りで押圧する部分は、スカート部１
２に限らず、その下縁から延びるフラットな部分であっ
てもよい。この蓋材１０を前記と同様に打ち抜いて蓋を
作成すればよい。The method of forming the deteriorated portion 15 is not limited to the above method. For example, as shown in FIG. 8, a cylindrical member having sawtooth or gear-shaped unevenness E on the lower edge is used, and as shown in FIG. The lower part 13' of the skirt part 12 is made into a flat tapered shape without any strip 13, and the lid member 10 is placed on the pedestal A, and the cylindrical member is rapidly lowered to force the tapered lower part 13'. When pressed, a deteriorated portion is formed in the synthetic resin sheet or film by the peaks of the unevenness E. Note that the part pressed by the member is the skirt part 1.
2, but may be a flat portion extending from the lower edge. This lid material 10 may be punched out in the same manner as described above to create a lid.
得られた蓋１０′を第１０図のように容器２０のフラン
ジ２１に被せて加熱すると、第１１図のように、収縮作
用によって蓋１０′のスカート部１２は、フランジ２１
に巻き込まれ、固定される。このとき、第６図又は第７
回に示すような劣化部１５は、フランジ２１の内側に巻
き込まれるため、耐衝撃性には問題がなく、また、開封
の際には、任意の個所でスカーＩ・部１２の周縁を引張
ると劣化部１５から容易に引き裂くことができる。When the obtained lid 10' is placed over the flange 21 of the container 20 and heated as shown in FIG. 10, the skirt portion 12 of the lid 10' will shrink to the flange 21 as shown in FIG.
caught in and fixed. At this time, Fig. 6 or 7
Since the deteriorated part 15 shown in Figure 2 is rolled up inside the flange 21, there is no problem with impact resistance. It can be easily torn off from the deteriorated part 15.
この発明によれば、以上のように、熱収縮性蓋のスカー
ト部局縁に劣化部を設けたので、容器の開口部に取りイ
」けた後の開封の際には、指を引４１１けて引張ること
により劣化部から簡単に破断し、そこから引き裂くこと
ができ、タブやノツチがなくても開封性が極めて良好と
なる。According to the present invention, as described above, since the deteriorated portion is provided at the local edge of the skirt portion of the heat-shrinkable lid, when opening the lid after placing it in the opening of the container, it is necessary to pull the finger 411. By pulling, it can be easily broken from the deteriorated part and torn from there, making it extremely easy to open even without tabs or notches.
第１図は蓋材の斜視図、第２図は同上の側面図、第３図
は同上のスカート部近辺を示す部分拡大側面図、第４図
は同上の正面図、第５図は切断工程を示す縦断面図、第
６図及び第７図は切断過程を示す側面線図及び正面線図
、第８図は劣化部を形成する筒状部材の斜視図、第９図
は劣化部を形成する工程を示す縦断面図、第１０図及び
第１１図は熱収縮性蓋を容器に被せて熱収縮さ−ける過
程を示す縦断面図である。
１０・・・・・・蓋材、 １０′・・・・・・
蓋、１２・・・・・・スカート部、 １３・・・・
・突条、１３′・・・・・・テーパ状下部、１４・・・
・・・屈曲部、１５・・・・・・劣化部、 ２０
・・・・・・容器、２１・・・・・・フランジ。
特許出願人 東洋エコー株式会社
同 代理人
鎌
田
文
他２名
田Figure 1 is a perspective view of the lid, Figure 2 is a side view of the same, Figure 3 is a partially enlarged side view showing the vicinity of the skirt part of the above, Figure 4 is a front view of the same, and Figure 5 is the cutting process. , FIG. 6 and FIG. 7 are side and front diagrams showing the cutting process, FIG. 8 is a perspective view of the cylindrical member forming the deteriorated part, and FIG. 9 is a view forming the deteriorated part. FIGS. 10 and 11 are longitudinal sectional views showing the process of putting a heat-shrinkable lid on a container and shrinking it by heat. 10...Lid material, 10'...
Lid, 12...Skirt part, 13...
・Protrusion, 13'...Tapered lower part, 14...
...Bending part, 15...Deterioration part, 20
...Container, 21...Flange. Patent applicant: Toyo Echo Co., Ltd. Agent Fumi Kamata and two others
Claims (3)
壁とその周縁から垂下するスカート部を形成し、このス
カート部の周縁に劣化部を形成した熱収縮性蓋。(1) A heat-shrinkable lid in which a flexible stretched synthetic resin sheet is molded to form a skirt portion that hangs down from the top wall and its periphery, and a deteriorated portion is formed on the periphery of the skirt portion.
壁とその周縁から垂下するスカート部を形成し、同時に
このスカート部の周縁部に多数の突条を形成し、この突
条に対応する部分を全周にわたって切断し、切断部近辺
に劣化部を形成することから成る熱収縮性蓋の製造方法
。(2) A flexible stretched synthetic resin sheet is molded to form a skirt portion that hangs down from the top wall and its periphery, and at the same time, a number of ridges are formed on the periphery of this skirt portion, and portions corresponding to the ridges are formed. A method for manufacturing a heat-shrinkable lid, which comprises cutting the entire circumference of a heat-shrinkable lid and forming a deteriorated part near the cut part.
壁とその周縁から垂下するスカート部を形成し、このス
カート部の周縁部を凹凸を有する部材で打撃を与えて劣
化部を形成し、この劣化部に対応する部分を全周にわた
って切断することから成る熱収縮性蓋の製造方法。(3) Form a flexible stretched synthetic resin sheet to form a skirt that hangs down from the top wall and its periphery, and then hit the periphery of this skirt with a member with unevenness to form a deteriorated part. A method for manufacturing a heat-shrinkable lid, which comprises cutting a portion corresponding to a deteriorated portion around the entire circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2200495A JPH0487952A (en) | 1990-07-25 | 1990-07-25 | Heat shrinkable lid and manufacture therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2200495A JPH0487952A (en) | 1990-07-25 | 1990-07-25 | Heat shrinkable lid and manufacture therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0487952A true JPH0487952A (en) | 1992-03-19 |
Family
ID=16425272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2200495A Pending JPH0487952A (en) | 1990-07-25 | 1990-07-25 | Heat shrinkable lid and manufacture therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0487952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095334A (en) * | 2001-09-19 | 2003-04-03 | Toyo Ekco Kk | Lid material for package and package container |
| JP2008050015A (en) * | 2006-08-22 | 2008-03-06 | Toyo Aluminum Ekco Products Kk | Lid material formed of shrink film |
-
1990
- 1990-07-25 JP JP2200495A patent/JPH0487952A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095334A (en) * | 2001-09-19 | 2003-04-03 | Toyo Ekco Kk | Lid material for package and package container |
| JP2008050015A (en) * | 2006-08-22 | 2008-03-06 | Toyo Aluminum Ekco Products Kk | Lid material formed of shrink film |
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