JPH04124967U - Easy-open container lid - Google Patents
Easy-open container lidInfo
- Publication number
- JPH04124967U JPH04124967U JP3962991U JP3962991U JPH04124967U JP H04124967 U JPH04124967 U JP H04124967U JP 3962991 U JP3962991 U JP 3962991U JP 3962991 U JP3962991 U JP 3962991U JP H04124967 U JPH04124967 U JP H04124967U
- Authority
- JP
- Japan
- Prior art keywords
- easy
- container
- container lid
- seal
- open
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 56
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Packages (AREA)
Abstract
(57)【要約】 (修正有)
【目的】 易開封性とシ―ル強度を両立させることがで
き、かつ製造が容易な易開封性容器蓋を得ることかでき
る。
【構成】 容器蓋1では、3種類の接着面、即ち非シ―
ル面、易開封性シ―ル面15、タイトシ―ル面14の3
種類の接触面を容器蓋1の層構成の中に設け、最も圧力
が作用し易い隙間を形成する非シ―ル面に隣接させてタ
イトシ―ル面14を設け、シ―ル強度をタイトシ―ル面
14で担持し、又は内圧が非シ―ル面よりも作用しにく
い易開封性シ―ル面15で易開封性を担持する。
【効果】 易開封性容器蓋は易開封性とシ―ル強度を両
立させることができる。しかもこの両立を高精度の施工
が容易な接着剤の塗布技術によって実現し、シ―ルバ―
の動作、位置決めの寸法精度に依存させる必要がないの
で、容器蓋の製造が容易になる。
(57) [Summary] (with amendments) [Purpose] It is possible to obtain an easy-to-open container lid that can achieve both easy-to-open properties and seal strength, and is easy to manufacture. [Structure] The container lid 1 has three types of adhesive surfaces:
3: seal surface, easy-open seal surface 15, tight seal surface 14
A tight-sealing surface 14 is provided adjacent to the non-sealing surface that forms the gap where pressure is most likely to act, and the tight-sealing surface 14 is provided in the layer structure of the container lid 1 to increase the sealing strength. The sealing surface 14 supports the sealing surface, or the easy-opening sealing surface 15, on which internal pressure acts less easily than the non-sealing surface, supports the easy-opening property. [Effect] The easy-to-open container lid can achieve both ease of opening and seal strength. Moreover, we achieved both of these using adhesive application technology that is easy to perform with high precision.
Since there is no need to depend on the dimensional accuracy of the operation and positioning of the container lid, manufacturing of the container lid becomes easier.
Description
【0001】0001
この考案は容器蓋に関し、特に食品その他を収納する成形容器にヒ―トシ―ル 等の手段によりシ―ルされる易開封性の容器蓋に関するものである。 This idea is related to container lids, especially for molded containers for storing food and other items. This invention relates to an easy-to-open container lid that is sealed by means such as the above.
【0002】0002
近年、プラスチック材料を少なくともその1部に用いたカップ容器やトレイ容 器が、食品、その他の物品の密封収納用容器として用いられている。このような 容器は、軽量で罐やビンと同等の保存性を有し、かつ、低コストで省資源の要請 に合致し、しかも取扱いが簡便なため、広く用いられている。 取扱いの簡便性の最も重要な要件の1つとして易開口性がある。このような容 器を他の道具を必要とせず、手指のみで容易に開口可能な易開封性容器蓋への需 要は多い。 In recent years, cup containers and tray containers that use at least a portion of plastic materials have become popular. Containers are used as sealed storage containers for food and other items. like this Containers are lightweight, have the same shelf life as cans and bottles, and are low-cost and resource-saving. It is widely used because it meets the requirements and is easy to handle. One of the most important requirements for ease of handling is ease of opening. This kind of capacity Demand for easy-to-open container lids that can be opened easily with just your fingers without the need for other tools There are many points.
【0003】 このような易開封性容器蓋における易開封性を実現するための一般的な技術と しては、容器に対する蓋のシ―ル強度を手指のみで開口し得る程度に低下させる ことが考えられる。一方、内容物を充填して密封した容器については、これをレ トルト処理する必要があるが、このレトルト処理に際しては容器内が加熱されて 内圧が上昇するので、容器と蓋とのシ―ル強度はこのレトルト処理の際の内圧強 度に耐えるものでなければならない。この容器と蓋とのシ―ル部の剥離に対する 耐圧強度(シ―ル強度)は15mm幅で2.3Kg以上と定められていて相当に高い 。従って、易開封性とシ―ル強度を両立させることが相当に困難である。0003 General technology and technology to achieve easy-opening of such easy-open container lids. The strength of the seal of the lid against the container is reduced to the extent that it can be opened with just your fingers. It is possible that On the other hand, containers that have been filled and sealed must be recorded. It is necessary to perform tort treatment, but during this retort treatment, the inside of the container is heated. As the internal pressure increases, the strength of the seal between the container and the lid will depend on the strength of the internal pressure during retort processing. It must be durable. To prevent peeling of the seal between the container and the lid. The pressure resistance (seal strength) is set at 2.3 kg or more for a 15 mm width, which is quite high. . Therefore, it is extremely difficult to achieve both ease of opening and seal strength.
【0004】 このシ―ル強度と易開封性とを両立させた容器蓋としては、例えば、特開昭6 3−294368号に示されたものがある。 この特開昭63−294368号に記載された技術は図6に示すように、容器 100にシ―ルされる蓋101を外面材102と内面材103とで構成し、外面 材102と内面材103とは高いシ―ル強度をもつタイトシ―ル部104でシ― ルし、内面材103と容器100とは低いシ―ル強度をもつ易開封性シ―ル部1 05でシ―ルし、かつ易開封性シ―ル部105の内周側端縁106はタイトシ― ル部104の内周側端縁107よりも容器開口部111の中心112側に位置す るように構成したものである。この構成によって、蓋101の変形を考慮すれば 、レトルト時の内圧は易開封性シ―ル部105よりも主としてタイトシ―ル部1 04に作用するが、タイトシ―ル部104の高いシ―ル強度によって蓋101の 剥離は防止され、規定のシ―ル強度を満足することができる。一方、容器100 の蓋101を開封する場合には、蓋101の外周縁を手指で摘み上げると、低い シ―ル強度をもつ易開封性シ―ル部105が剥離して容器100は開封される。 この容器蓋はシ―ル強度と易開封性を両立させることができ、易開封性容器蓋 として顕著なる技術効果をもつものである。0004 For example, as a container lid that has both seal strength and easy opening, There is one shown in No. 3-294368. The technique described in JP-A No. 63-294368 is as shown in FIG. A lid 101 that is sealed at 100 is composed of an outer material 102 and an inner material 103, The material 102 and the inner material 103 are sealed at a tight seal portion 104 with high sealing strength. The inner material 103 and the container 100 have an easy-to-open seal portion 1 with low sealing strength. 05, and the inner peripheral edge 106 of the easily openable seal portion 105 is a tight seal. located closer to the center 112 of the container opening 111 than the inner peripheral edge 107 of the round portion 104. It is configured so that With this configuration, considering the deformation of the lid 101, , the internal pressure during retort is mainly in the tight seal part 1 rather than in the easy-open seal part 105. 04, but due to the high sealing strength of the tight seal portion 104, the lid 101 is Peeling is prevented and the specified seal strength can be satisfied. On the other hand, container 100 When opening the lid 101, pick up the outer edge of the lid 101 with your fingers, and the lower The easy-to-open seal portion 105 having sealing strength is peeled off, and the container 100 is opened. This container lid has both seal strength and ease of opening, making it an easy-to-open container lid. It has remarkable technical effects.
【0005】[0005]
しかるに、上記の技術ではレトルト時の内圧によって易開封性シ―ル部105 が剥離することを回避するためには、易開封性シ―ル部105の内周側端縁10 6がタイトシ―ル部104の内周側端縁107よりも容器開口端111の中心寄 りに位置するための厳しい寸法精度の管理が必要であり、シ―ルバ―の動作、位 置決めに高精度の機構が必要となり、容器蓋の製造が煩雑となる問題があり、こ の点の対策が望まれている。 However, in the above technique, the easy-open seal portion 105 is damaged due to the internal pressure during retorting. In order to avoid peeling, the inner peripheral edge 10 of the easy-to-open seal portion 105 must be 6 is located closer to the center of the container opening end 111 than the inner peripheral edge 107 of the tight seal portion 104. Strict control of dimensional accuracy is required to ensure the seal bar is positioned in the desired position. There is a problem that a high-precision mechanism is required for positioning, making the manufacturing of container lids complicated. Countermeasures for these points are desired.
【0006】 この考案は上記の如き事情に鑑みてなされたものであって、易開封性とシ―ル 強度を両立させることができ、かつ製造が容易な易開封性容器蓋を提供すること を目的としている。[0006] This idea was made in view of the above circumstances, and it is easy to open and seal. To provide an easy-to-open container lid that is both strong and easy to manufacture. It is an object.
【0007】[0007]
この目的に対応して、この考案の易開封性容器蓋は、外面材と内面材とを積層 して備え周縁部のシ―ル域において容器の開口端縁にシ―ルされて前記容器の開 口端部を閉塞する容器蓋であって、前記外面材は前記容器の前記開口端縁の全面 を覆い得る輪郭を有し、前記外面材はその内側面が前記内面材の外側面に対して ヒ―トシ―ル性を持たない材料で構成され前記内面材は前記シ―ル域にかかる環 状体を構成し内周縁が前記シ―ル域の内周縁よりも前記開口端の中心寄りに位置 する状態で前記外面材の内側面に接着剤を用いてタイトシ―ル部を構成するとと もに前記容器の開口端部に前記シ―ル域において易開封性シ―ル部によりシ―ル 可能であり、易開封シ―ル部の内周縁が前記タイトシ―ル部の内周縁よりも前記 開口端の中心寄りにあることを特徴としている。 In response to this purpose, the easy-to-open container lid of this invention has an outer material and an inner material laminated together. The container is sealed to the opening edge of the container in a peripheral sealing area to prevent the container from opening. A container lid that closes a mouth end, wherein the outer surface material covers the entire surface of the opening edge of the container. The outer surface material has a contour that can cover the outer surface material, and the inner surface of the outer surface material is in contact with the outer surface of the inner surface material. The inner material is made of a material that does not have heat-sealing properties, and the inner material is a ring covering the sealing area. The inner peripheral edge is located closer to the center of the opening end than the inner peripheral edge of the sealing area. When forming a tight seal part using an adhesive on the inner surface of the outer material in the state of The open end of the container is sealed by an easy-to-open seal portion in the seal area. possible, and the inner periphery of the easy-to-open seal portion is further away than the inner periphery of the tight seal portion. It is characterized by being located near the center of the opening end.
【0008】[0008]
レトルト時の内圧は、蓋を外側に膨出させて、内面材と外面材の間及び内面材 と容器との間を剥離させる方向に作用する。易開封シ―ル部の内周縁はタイトシ ―ル部の内周縁よりも中心側にあるので、蓋の膨出変形の始端はタイトシ―ル部 の内周縁になる。しかるに、この剥離は進行して、タイトシ―ル部の内周縁に達 するが、タイトシ―ル部の剥離強度は大きいので、それ以上は剥離が進行せず、 レトルト時の規定の剥離強度を満足する。 The internal pressure during retort causes the lid to bulge outward, causing the gap between the inner and outer materials and the inner material to It acts in the direction of separating the container and the container. The inner edge of the easy-to-open seal is a tight seal. - Since it is located closer to the center than the inner peripheral edge of the seal part, the beginning of the bulging deformation of the lid is at the tight seal part. It becomes the inner periphery of. However, this peeling progresses and reaches the inner periphery of the tight seal. However, since the peeling strength of the tight seal part is high, the peeling does not progress any further. Satisfies the specified peel strength during retorting.
【0009】 一方、容器の蓋を開封する場合には、蓋の外周縁を手指で摘み上げると、低い シ―ル強度をもつ易開封性シ―ル部が剥離して容器は開封される。こうして、シ ―ル強度の確保と易開封性が両立する。[0009] On the other hand, when opening the lid of a container, if you pick up the outer edge of the lid with your fingers, it will lower the lid. The easy-to-open seal portion with sealing strength is peeled off and the container is opened. In this way, - Ensures both strength and ease of opening.
【0010】0010
以下、この考案の詳細を一実施例を示す図面について説明する。 図1及び図2において、1は容器蓋であり、容器100のフランジ10の上面 の幅Wのシ―ル域9に貼着されて容器100の開口端を密封するものである。 容器蓋1は、外面材3及び内面材4を貼着積層して備える。 The details of this invention will be explained below with reference to the drawings showing one embodiment. 1 and 2, 1 is a container lid, and the upper surface of the flange 10 of the container 100. The opening end of the container 100 is sealed by being attached to the seal area 9 having a width W of . The container lid 1 includes an outer surface material 3 and an inner surface material 4 that are laminated together.
【0011】 外面材3は容器100の開口部とフランジ10の全面とを併せ覆い得るほぼ円 形の輪郭を有する。 外面材3は外的な力に対して内容物を保護する等容器蓋としての性能をを満た すもので、このような強度をもつ構造として、例えば図3に示すように、外面か ら内面にかけてPETの層、Alの層、PPの層及びPETの層等を積層したラ ミネ―ト構造になっている。とくに重要なこととして、外面材3の最内面は内面 材4の外側面と良好なヒ―トシ―ルが行えない非ヒ―トシ―ル性をもつ構成とす る必要がある。この非ヒ―トシ―ル性を与えるために図3に示す外面材3では最 内側面を前記のPETの層で構成している。[0011] The outer material 3 has a substantially circular shape that can cover both the opening of the container 100 and the entire surface of the flange 10. Has a shape outline. The outer material 3 satisfies the performance as a container lid, such as protecting the contents from external forces. For example, as shown in Figure 3, a structure with such strength is A laminated layer consisting of a layer of PET, a layer of Al, a layer of PP, a layer of PET, etc. It has a laminated structure. It is particularly important that the innermost surface of the outer material 3 The structure has a non-heat sealing property that does not allow good heat sealing with the outer surface of material 4. It is necessary to In order to provide this non-heat sealing property, the outer material 3 shown in Fig. 3 is The inner surface is composed of the above-mentioned PET layer.
【0012】 内面材4はシ―ル域9にかかる環状体をなしていて、その内周縁11はシ―ル 域9の内周縁12よりも容器の中心13寄りに位置している。内面材4はシ―ル 域9において外側面で外面材3に接着剤5を用いたタイトシ―ル部14を構成し 、かつ内側面では容器100のフランジ10に易開封性シ―ル部15において易 開封性シ―ルしている。 ここでタイトシ―ル部はレトルト時の内圧によって剥離しないシ―ル強度を持 つ部分であり、易開封性シ―ルとはタイトシ―ル部よりも剥離強度が小さく、通 常の手指による加力で剥離するシ―ル強度を持つシ―ルである。 但し、接着剤5はシ―ル域9の全領域にわたって設けられているのではなく、 シ―ル域9の内周縁寄りの幅Xの部分9aには接着剤5は存在せず、従ってシ― ル域9内において、外面材3と内面材4との間のタイトシ―ル部14はシ―ル域 9の外周縁17から接着剤5の内周縁16(A点)までである。したがってタイ トシ―ル部14の内周縁16は易開封性シ―ル部15の内周縁12から距離Xだ け容器開口端の外側に位置している。内面材4がこのように外側面と内側面とで 、シ―ル強度の異なる2つのシ―ル面を備えるためには、内面材4は、その構成 の一例として、図3に示すように外側面にはPPの層、内側面にはPPとPEの 混合物の層を設けたラミネ―ト構造を採用する。0012 The inner surface material 4 forms an annular body extending over the sealing area 9, and the inner peripheral edge 11 thereof is a sealing area 9. It is located closer to the center 13 of the container than the inner peripheral edge 12 of the area 9. Inner material 4 is a seal In region 9, a tight seal portion 14 is formed on the outer surface material 3 using adhesive 5. , and on the inner surface, the flange 10 of the container 100 has an easy-to-open seal part 15. Has an tamper seal. Here, the tight seal part has a seal strength that will not peel off due to internal pressure during retort. The easy-open seal has a lower peel strength than the tight seal. This is a seal that has the strength to peel off with regular finger pressure. However, the adhesive 5 is not provided over the entire area of the seal area 9; There is no adhesive 5 in the portion 9a of width X near the inner peripheral edge of the seal area 9, so the seal In the seal area 9, the tight seal portion 14 between the outer surface material 3 and the inner surface material 4 is in the seal region 9. 9 to the inner peripheral edge 16 of the adhesive 5 (point A). Therefore Thailand The inner peripheral edge 16 of the seal portion 14 is a distance X from the inner peripheral edge 12 of the easy-open seal portion 15. located outside the open end of the container. The inner surface material 4 has an outer surface and an inner surface like this. In order to provide two sealing surfaces with different sealing strengths, the inner surface material 4 must have a As an example, as shown in Figure 3, the outer surface has a PP layer, and the inner surface has a layer of PP and PE. Adopts a laminate structure with layers of mixture.
【0013】 次に、このように構成された容器蓋の作用について説明する。 容器蓋1は容器100のフランジ10に重ねられヒ−トバ―22によってシ― ル域9において加熱、加圧されて、フランジ10にヒ−トシ―ルされる。 このときフランジ10の表面に対して内面材4の内側面がヒ―トシ―ルによっ て易開封性シ―ルが可能な層構成になっているので、シ―ル域9においてフラン ジ10と内面材4とは易開封シ―ル部15において易開封シ―ルされる。しかし 、外面材3と内面材4の間は、外面材3の最内面が非ヒ―トシ―ル材料であるた めヒ―トシ―ルされず、接着剤5の範囲がタイトシ―ル部となっている。[0013] Next, the operation of the container lid configured in this way will be explained. The container lid 1 is stacked on the flange 10 of the container 100 and sealed by the heat bar 22. It is heated and pressurized in the seal area 9 and heat-sealed to the flange 10. At this time, the inner surface of the inner material 4 is heat-sealed against the surface of the flange 10. Since the layer structure allows for an easy-to-open seal, there is no flange in the seal area 9. The jacket 10 and the inner surface material 4 are easily sealed at an easy-open seal portion 15. but , between the outer material 3 and the inner material 4, since the innermost surface of the outer material 3 is a non-heat seal material. The adhesive 5 is not heat-sealed, and the area of the adhesive 5 is a tight seal.
【0014】 次に、容器蓋1で密封した容器100をレトルト処理すると、容器100の内 圧が上昇して容器蓋1に作用する。容器蓋1は図4に示すように、外側に膨出す る状態で変形し、かつ外面材3と内面材4とは内面材4の内周縁11からA点ま での間ではシ―ルされていないので、両者の間に隙間21が生じる。従って容器 100の内圧がA点に作用し、次いで、外面材3と内面材4とを剥離させる方向 に作用するが、外面材3と内面材4との間はタイトシ―ル部14が形成されてい るので両者は剥離しない。一方、易開封シ―ル部15については容器蓋1の変形 の始点となっているA点が易開封シ―ル部15の内側縁12よりも距離Xだけ外 側にあって、A点が易開封シ―ル部15の両側縁の中間に位置するために、A点 に作用する引張り力は易開封シ―ル部15の広範囲の領域に同時に分散されるこ ととなって、易開封シ―ル部15の内周縁12に応力集中が生じないので、易開 封シ―ル部15もレトルト処理時の内圧上昇によっては開封しない。つまり、容 器蓋1はレトルト処理に対して容器100の気密を保持し得る。[0014] Next, when the container 100 sealed with the container lid 1 is retorted, the contents of the container 100 are Pressure increases and acts on the container lid 1. The container lid 1 bulges outward as shown in Figure 4. The outer material 3 and the inner material 4 are deformed from the inner peripheral edge 11 of the inner material 4 to point A. Since the space between the two is not sealed, a gap 21 is created between the two. So the container 100 of internal pressure acts on point A, and then the direction in which the outer material 3 and the inner material 4 are separated However, a tight seal portion 14 is formed between the outer material 3 and the inner material 4. so the two do not separate. On the other hand, regarding the easy-open seal portion 15, the container lid 1 is deformed. Point A, which is the starting point of Since point A is located in the middle of both side edges of the easy-to-open seal portion 15, point A The tensile force acting on the is simultaneously dispersed over a wide area of the easy-to-open seal portion 15. Therefore, stress concentration does not occur on the inner peripheral edge 12 of the easy-open seal portion 15, so that it is easy to open. The seal portion 15 is also not unsealed due to an increase in internal pressure during retort processing. In other words, capacity The lid 1 can keep the container 100 airtight for retort processing.
【0015】 次に、容器100を開封する場合は図5に示すように、容器蓋1の縁部を手指 で摘み上げると、容器蓋1は易開封性シ―ル部15から剥離して、容器100を 開封させることができる。[0015] Next, when opening the container 100, as shown in FIG. When the container lid 1 is picked up with It can be opened.
【0016】[0016]
この考案の容器蓋では、3種類の接触面、すなわち非シ―ル面、易開封性シ― ル面、タイトシ―ル部面の3種類の接触面を容器蓋の層構成の中に設け、最も圧 力が作用し易い隙間を形成する非シ―ル面に隣接させてタイトシ―ル部面を設け 、シ―ル強度をタイトシ―ル部面で担持し、または内圧が非シ―ル面よりも作用 しにくい易開封性シ―ル面で易開封性を担持することにより易開封性とシ―ル強 度を両立させることができる。しかもこの両立を高精度の施工が容易な接着剤の 塗布技術によって実現し、シ―ルバ―の動作、位置決めの寸法精度に依存する必 要がないので、容器蓋の製造が容易になる。 The container lid of this invention has three types of contact surfaces: a non-sealing surface and an easy-to-open seal. Three types of contact surfaces, a seal surface and a tight seal surface, are provided in the layered structure of the container lid to ensure maximum pressure. A tight seal surface is provided adjacent to the non-seal surface that forms a gap where force easily acts. , the seal strength is carried by the tightly sealed surface, or the internal pressure acts more than the non-sealed surface. Easy-openability and strong sealing by supporting easy-openability on the hard-to-open sealing surface. It is possible to balance both degrees. Moreover, this can be achieved by using an adhesive that is easy to apply with high precision. This is achieved using coating technology, and does not require dependence on the dimensional accuracy of seal bar operation and positioning. Since there is no need for this, manufacturing of the container lid becomes easier.
【図1】この考案の一実施例に係わる容器蓋を示す断面
説明図。FIG. 1 is an explanatory cross-sectional view showing a container lid according to an embodiment of the invention.
【図2】容器蓋を容器から分離した状態における容器蓋
を示す断面説明図。FIG. 2 is an explanatory cross-sectional view showing the container lid in a state where the container lid is separated from the container.
【図3】容器蓋の層構成を示す断面説明図。FIG. 3 is an explanatory cross-sectional view showing the layered structure of the container lid.
【図4】内圧が作用した状態の容器蓋を示す断面説明
図。FIG. 4 is an explanatory cross-sectional view showing the container lid in a state where internal pressure is applied.
【図5】剥離時の容器蓋を示す断面説明図。FIG. 5 is an explanatory cross-sectional view showing the container lid at the time of peeling.
【図6】従来の容器蓋を示す断面説明図である。FIG. 6 is an explanatory cross-sectional view showing a conventional container lid.
1 容器蓋 3 外面材 4 内面材 5 接着剤 10 フランジ 11 内周縁 12 内周縁 13 容器の中心 14 タイトシ―ル部 15 易開封性シ―ル部 16 内周縁 17 外周縁 21 隙間 22 ヒ―トバ― 1 Container lid 3 Exterior material 4 Inner material 5 Adhesive 10 Flange 11 Inner periphery 12 Inner periphery 13 Center of container 14 Tight seal part 15 Easy-open seal part 16 Inner periphery 17 Outer rim 21 Gap 22 Heat bar
Claims (1)
のシ―ル域において容器の開口端縁にシ―ルされて前記
容器の開口端部を閉塞する容器蓋であって、前記外面材
は前記容器の前記開口端縁の全面を覆い得る輪郭を有
し、前記外面材はその内側面が前記内面材の外側面に対
してヒ―トシ―ル性を持たない材料で構成され前記内面
材は前記シ―ル域にかかる環状体を構成し内周縁が前記
シ―ル域の内周縁よりも前記開口端の中心寄りに位置す
る状態で前記外面材の内側面に接着剤を用いてタイトシ
―ル部を構成するとともに前記容器の開口端部に前記シ
―ル域において易開封性シ―ル部によりシ―ル可能であ
り、易開封シ―ル部の内周縁が前記タイトシ―ル部の内
周縁よりも前記開口端の中心寄りにあることを特徴とす
る易開封性容器蓋。1. A container lid comprising a laminated outer material and an inner surface material and sealed to the opening edge of the container in a peripheral sealing area to close the opening end of the container, The outer surface material has a contour capable of covering the entire surface of the opening edge of the container, and the inner surface of the outer surface material is made of a material that does not have heat-sealability to the outer surface of the inner surface material. The inner surface material constitutes an annular body extending over the sealing area, and an adhesive is applied to the inner surface of the outer surface material with the inner peripheral edge being located closer to the center of the opening end than the inner peripheral edge of the sealing area. is used to form a tight seal part, and can be sealed to the open end of the container by an easy-to-open seal part in the seal area, and the inner peripheral edge of the easy-to-open seal part is An easy-open container lid, characterized in that the tight seal portion is located closer to the center of the opening end than the inner peripheral edge of the tight seal portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3962991U JPH0751493Y2 (en) | 1991-04-30 | 1991-04-30 | Easy-open container lid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3962991U JPH0751493Y2 (en) | 1991-04-30 | 1991-04-30 | Easy-open container lid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04124967U true JPH04124967U (en) | 1992-11-13 |
JPH0751493Y2 JPH0751493Y2 (en) | 1995-11-22 |
Family
ID=31920881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3962991U Expired - Fee Related JPH0751493Y2 (en) | 1991-04-30 | 1991-04-30 | Easy-open container lid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0751493Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000289784A (en) * | 1999-04-02 | 2000-10-17 | Fuji Seal Inc | Container for microwave oven heated food |
JP2000327013A (en) * | 1999-05-20 | 2000-11-28 | Dainippon Printing Co Ltd | Lid member |
-
1991
- 1991-04-30 JP JP3962991U patent/JPH0751493Y2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000289784A (en) * | 1999-04-02 | 2000-10-17 | Fuji Seal Inc | Container for microwave oven heated food |
JP2000327013A (en) * | 1999-05-20 | 2000-11-28 | Dainippon Printing Co Ltd | Lid member |
JP4536847B2 (en) * | 1999-05-20 | 2010-09-01 | 大日本印刷株式会社 | Lid material |
Also Published As
Publication number | Publication date |
---|---|
JPH0751493Y2 (en) | 1995-11-22 |
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