JPH0441092Y2 - - Google Patents
Info
- Publication number
- JPH0441092Y2 JPH0441092Y2 JP1984041125U JP4112584U JPH0441092Y2 JP H0441092 Y2 JPH0441092 Y2 JP H0441092Y2 JP 1984041125 U JP1984041125 U JP 1984041125U JP 4112584 U JP4112584 U JP 4112584U JP H0441092 Y2 JPH0441092 Y2 JP H0441092Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- molded
- aluminum foil
- heat
- molded lid
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- 239000011888 foil Substances 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 14
- 239000000565 sealant Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 7
- 239000002985 plastic film Substances 0.000 claims description 5
- 229920006255 plastic film Polymers 0.000 claims description 5
- 238000007789 sealing Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Description
【考案の詳細な説明】
＜産業上の利用分野＞
本考案は、容器開口部の上端面に熱シールされ
る成形蓋に関するもので、特に、延伸プラスチツ
クフイルムとアルミニウム箔との複合材料よりな
り、周囲にフランジ部を有する蓋を成形打ち抜き
製造した際、フランジ部には変形がなく、容器へ
の熱シールに問題のない成形蓋に関するものであ
る。[Detailed description of the invention] <Industrial application field> The present invention relates to a molded lid that is heat-sealed to the upper end surface of a container opening, and in particular, is made of a composite material of stretched plastic film and aluminum foil. The present invention relates to a molded lid that does not undergo deformation in the flange when the lid having a flange around the periphery is produced by molding and punching, and there is no problem in heat sealing it to a container.
＜従来の技術＞
従来から使用されているフルオープン、パーシ
ヤルオープン蓋は、容器に熱シール可能なプラス
チツクからなるシーラント層と、アルミニウム箔
とを積層した複合材料からなつており、周囲には
容器開口部の上端面に熱シールされることとなる
フランジ部を有していた。そして、このような蓋
は、上記複合材料を準備し、これをプレス成形で
蓋形状に成形し、その後打ち抜くことにより製造
されていた。<Conventional technology> Full-open and partially-open lids that have been used in the past are made of a composite material that includes a heat-sealable plastic sealant layer laminated with aluminum foil, and the container is surrounded by a sealant layer made of heat-sealable plastic. It had a flange portion that was heat-sealed to the upper end surface of the opening. Such a lid has been manufactured by preparing the above-mentioned composite material, press-molding it into a lid shape, and then punching it out.
従来の成形蓋は、比較的厚手のアルミニウム箔
を使用しているため、成形適性は非常に良好であ
つた。しかし、開封性、バリヤー性、物性強度の
安定と向上のために、従来の構成にさらに延伸プ
ラスチツクフイルムを追加した構成のものが使用
されるようになつた。例えばポリエステルフイル
ム／アルミニウム箔／シーラントのような場合で
ある。 Conventional molded lids have very good moldability because they use relatively thick aluminum foil. However, in order to stabilize and improve unsealability, barrier properties, and physical strength, a structure in which a stretched plastic film is added to the conventional structure has come to be used. For example, this is the case with polyester film/aluminum foil/sealant.
上記のような延伸フイルムとアルミニウム箔を
含む複合材料よりなる成形蓋は、PET
（12μm）／Al（30μm）／シーラント（60μm）の
ような複合材料からなるものであると、従来のも
のより種々のメリツトがある。 The molded lid made of composite material including stretched film and aluminum foil as mentioned above is made of PET
Composite materials such as Al (12 μm)/Al (30 μm)/Sealant (60 μm) have various advantages over conventional materials.
すなわちアルミニウム箔を薄くすることができ
コストダウンになること、延伸フイルムを使用す
るため成形蓋の全体としての強度が向上するこ
と、従つて開封性、フルオープン性がよくなるこ
と、手切れ、口切れが少なくなること、アルミニ
ウム箔が薄いため、容器に熱シールする際のシー
ル条件の範囲が広くなり、安定しやすいこと、延
伸フイルムが入つているためアルミニウム箔の耐
ピンホール効果が上がり、バリヤー性の劣化がな
い等である。 In other words, the aluminum foil can be made thinner, reducing costs; using stretched film improves the strength of the molded lid as a whole; therefore, it is easier to open and fully open; Since the aluminum foil is thin, the range of sealing conditions when heat-sealing to the container is wider and it is easier to stabilize.Since the aluminum foil contains a stretched film, the pinhole resistance effect of the aluminum foil is increased and the barrier property is improved. There is no deterioration, etc.
＜考案が解決しようとする問題点＞
ところが、上記構成に変えた場合、アルミニウ
ム箔が薄くなり、また、延伸フイルムを使用する
ため、材料全体としては形状保持性が劣り、従つ
て成形適性が悪くなり、蓋形状にプレス成形され
打ち抜かれた時に、従来の成形蓋には見られなか
つた、フランジ部の反り、波打ち等が生じてしま
つたのである。<Problems to be solved by the invention> However, when changing to the above structure, the aluminum foil becomes thinner, and since a stretched film is used, the shape retention of the material as a whole is poor, and therefore the moldability is poor. Therefore, when the lid was press-formed into the shape of a lid and punched, warping and waving of the flange, which were not seen in conventional molded lids, occurred.
第１図はいずれも従来品を示し、成形性のよい
材料（厚手のアルミニウム箔／シーラント層）を
加工して得た成形蓋ａと、延伸フイルムを含む材
料（延伸フイルム／薄手のアルミニウム箔／シー
ラント層）を通常の加工により成形した成形蓋ｂ
とを比較した説明図であつて、ｂのものはフラン
ジ部の波打ちが起こつている。 Figure 1 shows conventional products, including a molded lid a obtained by processing a material with good moldability (thick aluminum foil/sealant layer), and a material containing a stretched film (stretched film/thin aluminum foil/ Molded lid b made by molding the sealant layer) by normal processing
This is an explanatory diagram comparing the two, and the one shown in b has waving in the flange portion.
成形蓋は容器開口部の上端面に熱シールにより
接合されるが、このように成形蓋のフランジ部に
反り、波打ち等が生じてしまうと、熱シールの
際、容器開口部への供給が困難になつたり、供給
した成形蓋がずれたりして、十分なシールができ
なくなるという問題があつた。 The molded lid is joined to the upper end of the container opening by heat sealing, but if the flange of the molded lid is warped or wavy, it becomes difficult to feed the lid to the container opening during heat sealing. There was a problem that the molded lid that was supplied was not able to form a sufficient seal due to the molded lid becoming bent or being misaligned.
また、一般に補強のためにリブを形成すること
は広く行われている。しかし、本考案のような成
形蓋は、熱シールにより接合されるため、リブの
形状や形成位置によつては、上記熱シールの際、
リブが邪魔になつてシールができなくなつたり、
十分なシール性が得られなくなるということがあ
る。 Additionally, forming ribs for reinforcement is generally widely practiced. However, since the molded lid of the present invention is joined by heat sealing, depending on the shape and formation position of the ribs, during the heat sealing,
The ribs may get in the way and make it impossible to seal.
In some cases, sufficient sealing performance may not be obtained.
そこで本考案は、フランジ部には反り、波打ち
等の変形がなく、従来と同様の供給適性を有し、
容器に対して十分なシールができる成形蓋を提供
するものである。 Therefore, the present invention has no deformation such as warping or waving in the flange part, and has the same feeding suitability as the conventional one.
To provide a molded lid that can provide a sufficient seal to a container.
＜問題点を解決するための手段＞
すなわち本考案は、延伸プラスチツクフイル
ム、アルミニウム箔およびシーラント層からなる
複合材料をプレス成形して得られる容器用成形蓋
であつて、容器開口部の上端面に熱シールされる
こととなるフランジ部を周囲に有し、該フランジ
部には、容器開口部上端面に熱シールした際には
潰れて平面状となる凸状の円環状リブを設けたこ
とを特徴とする成形蓋である。<Means for Solving the Problems> In other words, the present invention is a molded lid for a container obtained by press-molding a composite material consisting of a stretched plastic film, an aluminum foil, and a sealant layer. It has a flange part around it that is to be heat sealed, and the flange part is provided with a convex annular rib that collapses into a flat shape when it is heat sealed to the upper end surface of the container opening. It features a molded lid.
＜作用＞
上記した構成からなる本考案の成形蓋は、フラ
ンジ部に凸状の円環状リブが設けられ、フランジ
部の強度が補強され、該部分の変形が生じない。
この成形蓋は、容器開口部の上端面に熱シールさ
れ、その際、円環状リブは熱シール時の熱圧によ
り潰され、平面状になるので、シール性に影響を
及ぼすことがない。<Function> In the molded lid of the present invention having the above-described configuration, the flange portion is provided with a convex annular rib, the strength of the flange portion is reinforced, and deformation of this portion does not occur.
This molded lid is heat-sealed to the upper end surface of the container opening, and at this time, the annular rib is crushed by the heat pressure during the heat sealing and becomes flat, so that the sealing performance is not affected.
＜実施例＞
本考案の成形蓋は、断面的に第２図の説明図に
示されている。１は蓋本体、２は変形用リブ、３
はフランジ部で、４は前記フランジ部３上に凸状
に設けけた円環状リブである。 <Example> The molded lid of the present invention is shown in cross section in the explanatory diagram of FIG. 1 is the lid body, 2 is the deformation rib, 3
is a flange portion, and 4 is an annular rib provided on the flange portion 3 in a convex shape.
この成形蓋は、例えばPET（12μm）／Al
（30μm）／シーラント（60μm）のような、延伸
プラスチツクフイルム、アルミニウム箔およびシ
ーラント層からなる複合材料をプレス成形、打ち
抜くことによつて得られる。 This molded lid is made of, for example, PET (12μm)/Al
(30 μm)/sealant (60 μm) obtained by press forming and punching a composite material consisting of a stretched plastic film, aluminum foil and a sealant layer.
プレス成形および打ち抜きは、従来の装置をそ
のまま使用できるが、本考案では、フランジ部３
に円環状のリブ４を凸状に形成する点が、従来と
は異なつている。 Conventional equipment can be used as is for press forming and punching, but in the present invention, the flange portion 3
It differs from the conventional method in that the annular rib 4 is formed in a convex shape.
第３図は本考案の成形蓋の成形用金型の説明図
で、Ａは雄型、Ｂは雌型、５は上刃、６は下刃
で、７はシワ取り部、８はリブ成形部でありＦは
複合材料である。 Figure 3 is an explanatory diagram of the mold for forming the molded lid of the present invention, where A is the male mold, B is the female mold, 5 is the upper blade, 6 is the lower blade, 7 is the wrinkle removal part, and 8 is the rib molding. F is a composite material.
この金型は、以下のように作動する。 This mold operates as follows.
まず、雄型Ａと雌型Ｂの間に複合材料Ｆが配置
されると、上刃５とシワ取り部７が閉じ合わさ
れ、フランジ部３に相当する部分が成形される。
このとき、同時に円環状のリブ４が成形される。
次いで、複合材料Ｆを挟んだ状態で、上刃５とシ
ワ取り部７が降下し、上刃５および下刃６とによ
り、フランジ部３の外周縁が剪断され、複合材料
Ｆが円盤状に打ち抜かれる。その後、雄型Ａおよ
び雌型Ｂが閉じ合わされ、円盤状に打ち抜かれた
複合材料が蓋材形状に成形される。なお、第２図
に示した変形用リブ２は、従来から形成されてい
るもので、例えば内容物の冷却に伴う体積減少に
よる容器内圧の変化を吸収する目的で形成される
ものである。 First, when the composite material F is placed between the male mold A and the female mold B, the upper blade 5 and the wrinkle removing part 7 are closed together, and a portion corresponding to the flange part 3 is molded.
At this time, an annular rib 4 is simultaneously formed.
Next, the upper blade 5 and the wrinkle removing part 7 descend with the composite material F sandwiched between them, and the outer peripheral edge of the flange part 3 is sheared by the upper blade 5 and the lower blade 6, and the composite material F is shaped into a disc. Punched out. Thereafter, the male mold A and the female mold B are closed together, and the composite material punched into a disk shape is molded into the shape of a lid material. The deformation ribs 2 shown in FIG. 2 are conventionally formed, and are formed, for example, for the purpose of absorbing changes in the internal pressure of the container due to volume reduction due to cooling of the contents.
上述のように製造された本考案の成形蓋は、常
法に従い容器開口部の上端面に供給、配置され、
従来同様に熱シールされ、容器に接合される。 The molded lid of the present invention manufactured as described above is supplied and placed on the upper end surface of the container opening according to a conventional method, and
It is heat sealed and joined to the container in the conventional manner.
この際、本考案の成形蓋はフランジ部に反り、
波打ち等の変形がないので、容器上への供給には
何ら問題はなく、また、熱シール時にも、成形蓋
が成形蓋が容器開口部の上端面からずれることが
なく、安定した熱シールが可能である。なお、フ
ランジ部３に設けたリブ４は、熱シールにより押
し潰されてしまい、シール性に悪影響を及ぼすと
いうことがない。 At this time, the molded lid of the present invention warps at the flange,
Since there is no deformation such as waving, there is no problem with feeding onto the container, and even during heat sealing, the molded lid does not shift from the top surface of the container opening, allowing stable heat sealing. It is possible. Note that the ribs 4 provided on the flange portion 3 will not be crushed by heat sealing and will not have an adverse effect on sealing performance.
＜考案の効果＞
本考案の成形蓋は上述した構成からなるので、
従来の厚手のアルミニウム箔に代えて、延伸フイ
ルムと薄手のアルミニウム箔を使用した場合であ
つても、フランジ部に反り、波打ち等の変形が生
じない。従つて、開封性、フルオープン性に優
れ、また、容器へのシール条件の範囲が広く熱シ
ールが容易かつ安定し、手切れや口切れがないと
いう、延伸フイルムと薄手のアルミニウム箔を使
用したことによるメリツトをそのまま生かすこと
ができ、しかも、フランジ部に変形がないので容
器への熱シール時に、成形蓋の供給、位置ずれが
起こらず、十分なシールを行うことができる。<Effects of the invention> Since the molded lid of the invention has the above-mentioned configuration,
Even when a stretched film and thin aluminum foil are used in place of the conventional thick aluminum foil, deformations such as warping and waving do not occur in the flange portion. Therefore, we used stretched film and thin aluminum foil, which has excellent unsealability and full-openability, has a wide range of sealing conditions for containers, is easy and stable to heat seal, and does not tear by hand or at the edges. Moreover, since there is no deformation of the flange portion, there is no supply or positional displacement of the molded lid during heat sealing to the container, and sufficient sealing can be achieved.
第１図は従来材料で成形した蓋と延伸フイルム
を含む積層蓋材料を用い従来方法で成形した蓋と
の比較説明図、第２図は本考案の成形蓋の断面説
明図、第３図は本考案の成形蓋の成形金型の説明
図である。
１……蓋本体、２……変形用リブ、３……フラ
ンジ部、４……円環状リブ、５……上刃、６……
下刃、７……シワ取り部、８……リブ成形部、Ａ
……雄型、Ｂ……雌型、Ｆ……複合材料。
Figure 1 is a comparative illustration of a lid molded with a conventional material and a lid molded by a conventional method using a laminated lid material containing a stretched film, Figure 2 is a cross-sectional diagram of the molded lid of the present invention, and Figure 3 is FIG. 3 is an explanatory diagram of a molding die for a molded lid of the present invention. DESCRIPTION OF SYMBOLS 1... Lid main body, 2... Deformation rib, 3... Flange part, 4... Annular rib, 5... Upper blade, 6...
Lower blade, 7... Wrinkle removal part, 8... Rib forming part, A
...Male type, B...Female type, F...Composite material.
Claims (1)
よびシーラント層からなる複合材料をプレス成形
して得られる容器用成形蓋であつて、 容器開口部の上端面に熱シールされることとな
るフランジ部を周囲に有し、該フランジ部には、
容器開口部上端面に熱シールした際には潰れて平
面状となる凸状の円環状リブを設けたことを特徴
とする成形蓋。[Scope of claim for utility model registration] A molded lid for a container obtained by press-molding a composite material consisting of a stretched plastic film, aluminum foil, and a sealant layer, which is heat-sealed to the upper end surface of the container opening. It has a flange part around it, and the flange part has a
A molded lid characterized in that a convex annular rib that collapses into a flat shape when heat-sealed is provided on the upper end surface of a container opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4112584U JPS60154264U (en) | 1984-03-22 | 1984-03-22 | molded lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4112584U JPS60154264U (en) | 1984-03-22 | 1984-03-22 | molded lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60154264U JPS60154264U (en) | 1985-10-15 |
| JPH0441092Y2 true JPH0441092Y2 (en) | 1992-09-28 |
Family
ID=30550655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4112584U Granted JPS60154264U (en) | 1984-03-22 | 1984-03-22 | molded lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154264U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534909Y2 (en) * | 1987-08-13 | 1993-09-03 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837820Y2 (en) * | 1979-11-07 | 1983-08-26 | 住友ベークライト株式会社 | container lid |
| JPS5681057U (en) * | 1979-11-16 | 1981-07-01 |
-
1984
- 1984-03-22 JP JP4112584U patent/JPS60154264U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60154264U (en) | 1985-10-15 |
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