JPH03200562A - Production of sealed vessel - Google Patents
Production of sealed vesselInfo
- Publication number
- JPH03200562A JPH03200562A JP33757389A JP33757389A JPH03200562A JP H03200562 A JPH03200562 A JP H03200562A JP 33757389 A JP33757389 A JP 33757389A JP 33757389 A JP33757389 A JP 33757389A JP H03200562 A JPH03200562 A JP H03200562A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- adhesive
- flange
- sealing
- adjacent layer
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000000853 adhesive Substances 0.000 claims abstract description 21
- 230000001070 adhesive effect Effects 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 9
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 9
- 238000009210 therapy by ultrasound Methods 0.000 abstract description 8
- 238000010030 laminating Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 56
- -1 polypropylene Polymers 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 235000013405 beer Nutrition 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 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
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Packages (AREA)
- Closing Of Containers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、フランジ部を有するプラスチック製のカップ
体と蓋材とから構成された容器において、蓋をイージー
オープンすることができる密封容器の製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the manufacture of a sealed container whose lid can be easily opened, the container comprising a plastic cup body having a flange portion and a lid material. Regarding the method.
各種の食品類を包装するための容器として、蓋が容易に
開封できるイージーオープン構造のプラスチック製密封
容器が汎用されている。2. Description of the Related Art Sealed plastic containers with easy-to-open lids are widely used as containers for packaging various foods.
従来から実用されている最も一般的なイージーオープン
式の構造は、蓋材のシール層を構成する樹脂の組成を変
えることによって容器フランジ部とのシール強度を適度
の範囲（通常、５００〜１５００ｇ／１５ｍｍ）に調整
し、シール界面をビールして開封する形態のものである
（界面剥離タイプ）。The most common easy-open structure that has been in practical use has been developed by changing the composition of the resin that makes up the sealing layer of the lid to maintain the sealing strength with the container flange within an appropriate range (usually 500 to 1500 g/min). 15 mm) and is opened by rubbing the seal interface (interfacial peeling type).
ところが、この界面剥離タイプでは、付与するシール強
度がシール時の条件、環境温度、内容物の付着等の影響
を受は易いために目的範囲の制御が難しく、往々にして
強弱のバラツキを発生させる欠点がある。このバラツキ
は、弱い方に偏るとシール漏れを生じ、逆に強い方に偏
るとビール性を阻害して易開封性を損ねる結果を招く、
とくにシール漏れは密封容器としての致命的な欠陥とな
るため、通常、ビール性を犠牲にしてもシールの熱圧条
件を高めに設定する方策が採られている。However, with this interfacial peeling type, the seal strength provided is easily affected by sealing conditions, environmental temperature, adhesion of contents, etc., making it difficult to control the desired range and often causing variations in strength. There are drawbacks. If this variation is biased toward the weak side, it will cause seal leakage, and conversely, if it biases toward the strong side, it will impede the beer quality and impair ease of opening.
In particular, seal leakage is a fatal defect in a sealed container, so a measure is usually taken to set the heat and pressure conditions of the seal to be high, even at the expense of beer quality.
このような問題点を改善するため、例えば特公昭５０−
３７５９７号に記載されているように容器側のシール層
とこれに隣接する層との間をデラミネーシヨンすること
によって開封する方法（層間剥離タイプ）が知られてい
る。しかし、通常のシール方式でこの構造を採ろうとす
るとシール層部分が円滑に破断せず、内容物が取り出し
にくいという難点がある。この場合、剥ＮＮと隣接層と
の切り離しを容易にするため、フランジ部に切り込みを
設ける構造（特開昭６２−２５１３６３号公報、同６３
−７８号公報、同６３−２５０３７号公報等）、フラン
ジ部に剥離開始用切り欠きと剥離停止用の切り欠きを設
置した構造（特開昭６３−９６０６０号公報）ほか多数
の改良提案がなされているが、これら構造においては耐
圧性の点に問題が残されている。In order to improve these problems, for example,
As described in Japanese Patent Application No. 37597, a method of opening the seal by delaminating a seal layer on the container side and a layer adjacent thereto (delamination type) is known. However, when attempting to adopt this structure using a normal sealing method, there is a problem in that the sealing layer portion does not break smoothly, making it difficult to remove the contents. In this case, in order to facilitate separation of the peeled NN from the adjacent layer, a structure in which a cut is provided in the flange part (JP-A-62-251363, JP-A-62-251363,
-78, 63-25037, etc.), a structure in which a cutout for starting peeling and a cutout for stopping peeling are installed in the flange (Japanese Patent Application Laid-Open No. 63-96060), and many other improvements have been proposed. However, these structures still have problems with pressure resistance.
上記の界面剥離タイプ、眉間剥離タイプのほかに、開封
時に容器−蓋間の樹１１＆ｌ織を破壊させながら剥がす
ことにより開封する凝集剥離タイプのイージーオープン
方式が知られている。In addition to the above-mentioned interfacial peeling type and glabella peeling type, an easy-open method of a cohesive peeling type is known in which the seal is opened by breaking the tree 11&l between the container and the lid while peeling it off.
しかしながら、凝集破壊タイプの場合には容器フランジ
部と蓋材間における凝集力と接着力とをバランスよく調
整させないと円滑な易開封性が得られない問題点があり
、活用度は多くない。However, in the case of the cohesive failure type, there is a problem that smooth and easy opening cannot be obtained unless the cohesive force and adhesive force between the container flange and the lid material are adjusted in a well-balanced manner, and therefore, it is not widely used.
〔発明が解決しようとするＩ’ｌｌ）
発明者らは、上記の眉間剥離タイプの欠点を凝集剥離機
構により補うイージーオープン構造の改良化について研
究を重ねた結果、容器フランジ部の上面に蓋材と接着し
ない無数の点在層を形成した状態でシールすると十分な
耐圧性を有しながら接着層間が眉間剥離と凝集剥離を介
して円滑に開封し得るシール構造が形成できることを確
認した。[What the invention seeks to solve] As a result of repeated research into the improvement of the easy-open structure that compensates for the drawbacks of the above-mentioned glabellar peeling type by means of a cohesive peeling mechanism, the inventors have developed a method for improving the easy-open structure by adding a lid material to the top surface of the container flange. It was confirmed that by sealing with countless interspersed layers that do not adhere to each other, it is possible to form a seal structure that has sufficient pressure resistance and can be opened smoothly through glabella peeling and cohesive peeling between the adhesive layers.
本発明は前記の知見に基づいて開発されたもので、安定
した高耐圧密封性を保持しながら円滑なイージーオープ
ン性を備える密封容器の製造方法を提供することを目的
とするものである。The present invention was developed based on the above-mentioned knowledge, and an object of the present invention is to provide a method for producing a sealed container that can be opened smoothly and easily while maintaining stable high-pressure sealing properties.
（課題を解決するための手段）
上記の目的を連成するための本発明による密封容器の製
造方法は、多層シートからなる容器本体の最内層に蓋材
と接着しない物質層をうξネートし、そのフランジ部の
上面を超音波処理して前記物質層が破壊された無数の微
小凹部を形成したのち、該フランジ部に露出した隣接層
と接着性を有する蓋材をヒートシールすることを構成上
の特徴としている。(Means for Solving the Problems) A method for manufacturing a sealed container according to the present invention to achieve the above-mentioned objects includes forming a material layer that does not adhere to the lid material in the innermost layer of the container body made of a multilayer sheet. , the upper surface of the flange portion is treated with ultrasonic waves to form countless minute recesses in which the material layer is destroyed, and then the adjoining layer exposed on the flange portion is heat-sealed with a lid material having adhesive properties. The above features.
以下、本発明を図面に沿って詳細に説明する。Hereinafter, the present invention will be explained in detail along with the drawings.
第１図は、本発明の製造対象となる密封容器を示した断
面図で、ｌは例えば真空成形、圧空成形などによって所
定の形状に底形したフランジ部２を備える容器本体、３
は容器本体ｌの最内層にう稟ネートされた非接着性物質
層、４はその隣接層、５は蓋材である。容器本体ｌは、
ポリプロピレン、ポリスチレン等の単体樹脂、あるいは
これら樹脂層にエチレン酢酸ビニル共重合体けん化物ま
たはポリ塩化ビニリデン系樹脂のバリア層などを組み合
わせた多層シートにより構成される。また、場合によっ
ては多層シートの外層や中間層に金属、紙、セラ旦ツク
ス等の材料を積層することも可能であるが、本発明の目
的には隣接層４としてポリプロピレン層を介在させた多
層容器が好適に使用される。FIG. 1 is a sectional view showing a sealed container to be manufactured according to the present invention, in which 1 is a container body having a flange portion 2 whose bottom is shaped into a predetermined shape by, for example, vacuum forming or pressure forming;
1 is a non-adhesive material layer coated on the innermost layer of the container body 1, 4 is an adjacent layer thereof, and 5 is a lid material. The container body l is
It is composed of a single resin such as polypropylene or polystyrene, or a multilayer sheet in which these resin layers are combined with a barrier layer of saponified ethylene vinyl acetate copolymer or polyvinylidene chloride resin. In some cases, it is also possible to laminate materials such as metal, paper, and ceramics on the outer layer or intermediate layer of the multilayer sheet, but for the purpose of the present invention, a multilayer sheet with a polypropylene layer interposed as the adjacent layer 4 is suitable for the purpose of the present invention. Containers are preferably used.
容器本体の最内層として形成される物質層３は蓋材５に
対して非接着性を有する材質で構成されるもので、蓋材
のシール層とは異質の非接着性樹脂、金属箔、セラミッ
クスあるいはこれらの複合物などから包装内容物との関
係で適宜に選択することができる。例えば、内容物が光
の透過を嫌う場合には遮光性のある金属箔が有効であり
、内容物の長期保存性および香移性を防止するためには
ポリエチレンテレフタレート、ポリカーボネート等の樹
脂類の使用が効果的となる。これら物質層は、通常、ド
ライラ【ネートにより層形成される。The material layer 3 formed as the innermost layer of the container body is made of a material that is non-adhesive to the lid material 5, and is made of a non-adhesive resin, metal foil, or ceramics that is different from the sealing layer of the lid material. Alternatively, it can be appropriately selected from these composites depending on the package contents. For example, if the contents do not allow light to pass through, metal foil with light-shielding properties is effective, and in order to preserve the contents for a long time and prevent fragrance transfer, use resins such as polyethylene terephthalate or polycarbonate. becomes effective. These material layers are usually layered with dry lanate.
このようにして非接着性物質層を形成した容器本体１の
フランジ部２上面には超音波処理が施される。この超音
波処理には無数の突起を有するホーンと受は台を用い、
フランジ部上面における前記突起に相当する位置の物質
層が破壊されて隣接層が露出する無数の微小凹部が形成
されるような条件でおこなわれる。形成する微小凹部の
数は、１ｃｍ”当たり５０〜５００個／ｃｍ”の範囲と
することが望ましい、５０個／ｃｍ”未満では開封性能
が向上せず、５００個／ｃｍ”以上の加工は困難となる
からである。第２図（容器の部分平面図）および第３図
（フランジ部の拡大断面図）は超音波処理後の状態を示
したもので、５は形成された微小口部、６は非接着物質
層の残存部分である。The upper surface of the flange portion 2 of the container body 1 on which the non-adhesive material layer has been formed in this manner is subjected to ultrasonic treatment. For this ultrasonic treatment, a horn with countless protrusions and a stand are used.
This is carried out under conditions such that the material layer at the position corresponding to the protrusion on the upper surface of the flange portion is destroyed and numerous minute recesses are formed in which the adjacent layer is exposed. It is desirable that the number of minute recesses to be formed is in the range of 50 to 500 per cm.If the number is less than 50, the opening performance will not improve, and if the number is less than 50, it is difficult to process. This is because. Figure 2 (partial plan view of the container) and Figure 3 (enlarged sectional view of the flange) show the state after ultrasonic treatment, where 5 is the formed micro-mouth and 6 is the non-adhesive material layer. This is the remaining part of .
蓋材３の材質は、少なくとも容器フランジ部と接着する
層が非接着物質層の残存部分６とは接着しないが露出点
在する隣接層４とは接着するもので構成する。したがっ
て、最も好ましいａ様は蓋材５のシール層が隣接層４と
同一の樹脂で構成する組み合わせである。なお、蓋材５
は前記したようなシール層を備えるものであれば単層で
も、またバリア性のよいアルミ箔やプラスチックなどの
材質を組み合わせた多層構成であってもよい。The material of the lid member 3 is such that at least the layer that adheres to the container flange does not adhere to the remaining portion 6 of the non-adhesive material layer, but it adheres to the exposed adjacent layer 4. Therefore, the most preferred type a is a combination in which the sealing layer of the lid material 5 is made of the same resin as the adjacent layer 4. In addition, the lid material 5
As long as it includes a sealing layer as described above, it may be a single layer, or it may have a multilayer structure combining materials with good barrier properties such as aluminum foil and plastic.
このようにして非接着物質層面に無数の微小凹部を形成
した容器本体ｌのフランジ部２と露出点在する隣接層４
に接着する蓋材５を重ね合わせてヒートシールすること
により本発明の密封容器が製造される。The flange portion 2 of the container body l with countless minute recesses formed in the surface of the non-adhesive material layer in this way and the exposed adjacent layer 4
The sealed container of the present invention is manufactured by overlapping and heat-sealing the lid material 5 that is adhered to the container.
（作 用〕
上記した本発明のプロセスで製造されるシール構造は、
第４図に示したように蓋材５のシール層がフランジ部２
の上面に形成された微小凹部内に完全に充填しており、
非接着性物質の残存部分７が介在する部位においては接
着せず、微小凹部６の隣接層４に接する部位では強固に
接着した独特の形態を呈する。この接着・非接着部はシ
ール全域に亘って無数に介在するから、密封時には内圧
、外圧に対して安定した高耐圧性をもたらし、開封時に
は次のような凝集剥離と眉間剥離の共働作用が発揮され
る。(Function) The seal structure manufactured by the process of the present invention described above is
As shown in FIG. 4, the sealing layer of the lid material 5 is
It completely fills the micro recess formed on the top surface of the
It exhibits a unique form in which it does not adhere in the region where the remaining portion 7 of the non-adhesive substance is present, but is firmly adhered in the region in contact with the adjacent layer 4 of the minute recess 6 . These adhesive and non-adhesive parts are numerous throughout the entire seal area, so when the seal is sealed, it provides stable high pressure resistance against internal and external pressure, and when the seal is opened, the following synergistic effects of cohesive peeling and glabellar peeling occur. Demonstrated.
すなわち、開封時に蓋材５を上方に引っ張り上げると第
５図のように強固に接着する部位（八位置）では樹脂組
織を破壊し、接着しない部位（Ｂ位ｉｆ）ではその形態
に沿って剥離する２態様の分離パターンが連続的に進行
する。このような、凝集剥離と眉間剥離の相互補完作用
を介して最後まで抵抗感のない円滑な開封が可能となる
。That is, when the lid material 5 is pulled upward when opening the package, the resin structure is destroyed in the strongly bonded area (position 8) as shown in Fig. 5, and the resin structure is peeled off along its shape in the non-bonded area (position B if). Two types of separation patterns proceed continuously. Through the mutually complementary effects of cohesive peeling and glabellar peeling, smooth opening without any sense of resistance is possible.
ポリプロピレン（ＰＰ）層、エチレン酢酸ビニル共重合
体（Ｅν＾）けん化物のバリア層およびポリプロピレン
（ＰＰ）層からなる容器基材のポリプロピレン層を隣接
層とし、その面に蓋材との非接着物質層として厚さ１６
μのポリエチェンテレフタレート（ＰＨＴ） Ｎをドラ
イラミネートした。この多層シートを真空酸形して非接
着物質層が最内層を形成する内径６５−一、フランジ部
外径７５−１高さ２５−一の容器本体を作製した。The polypropylene layer of the container base material consisting of a polypropylene (PP) layer, a saponified ethylene vinyl acetate copolymer (Eν^) barrier layer, and a polypropylene (PP) layer is used as an adjacent layer, and a non-adhesive substance to the lid material is applied to the surface of the polypropylene layer. Thickness 16 as a layer
Polyethylene terephthalate (PHT) N of μ was dry laminated. This multilayer sheet was vacuum-oxidized to produce a container body having an inner diameter of 65-1, an outer diameter of the flange portion of 75-1, and a height of 25-1, in which the non-adhesive material layer forms the innermost layer.
ついで、フランジ部の上面に突起数が２５６個／ｃ１の
多突雌状超音波ホーンを当てて超音波処理をおこない、
全域に無数の微小凹部を形成した。Next, a multi-protrusion female ultrasonic horn having 256 protrusions/c1 was applied to the upper surface of the flange portion to perform ultrasonic treatment.
Countless microscopic depressions were formed over the entire area.
超音波処理の条件は、加圧力４５０ＸＰａ 、時間０．
４秒とした。この超音波処理により、微小凹部が形成さ
れた位置のポリエチレンテレフタレート層（非接着物質
層）は破壊されて隣接層が露出し、表面に微細な非接着
物質層の残存部分が無数に点在する形態が形成された。The conditions for the ultrasonic treatment were a pressure of 450XPa and a time of 0.
It was set to 4 seconds. Through this ultrasonic treatment, the polyethylene terephthalate layer (non-adhesive material layer) at the position where the minute recesses were formed is destroyed, the adjacent layer is exposed, and the surface is dotted with countless fine remaining parts of the non-adhesive material layer. A form was formed.
蓋材として、容器の隣接層と同一のポリプロピレン（Ｐ
Ｐ）をシール層とし、これを６−６ナイロン（厚さ２５
μ）とドライラミネートしたものを用いた。As a lid material, the same polypropylene (P) as the adjacent layer of the container is used.
P) is used as a sealing layer, and this is made of 6-6 nylon (thickness 25
μ) was dry laminated.
容器のフランジ部の上面に蓋材のシール層を重ね、面圧
２ ｋｇ／ｃｍ” 、温度１９０°Ｃ１時間１．５秒の
条件で２回に亘ってヒートシールした。A sealing layer of a lid material was placed on the upper surface of the flange portion of the container, and heat-sealed twice under the conditions of a surface pressure of 2 kg/cm'' and a temperature of 190° C. for 1 hour and 1.5 seconds.
このようにして製造した２０個の密封容器につき蓋を開
封したところ、全ての容器が抵抗のないビール感で最後
まで円滑に蓋が開口分離し、開封面の状態も良好であっ
た。When the lids of the 20 sealed containers thus produced were opened, all the containers had a beer taste with no resistance and the lids opened and separated smoothly until the end, and the opening surface was in good condition.
また、蓋材の中央に粘着性のゴム板（厚さ１．５ｍ−）
を貼りつけ、注射針を差込んで２ｃｃ／秒の速度で空気
を圧入した際のパンク圧を測定したところ、平均バンク
圧は０．８ｋｇ／ａｍ” 、バラツキ巾０．２ｋｇ／ｃ
ｍ”で安定した耐圧密封性を示した。In addition, there is an adhesive rubber plate (1.5m thick) in the center of the lid material.
When we measured the puncture pressure when we attached a syringe needle and injected air at a rate of 2cc/sec, the average bank pressure was 0.8kg/am'', with a variation of 0.2kg/c.
Stable pressure-tight sealing performance was exhibited at m''.
以上のどおり、本発明によれば上面に蓋材と接着しない
部分が無数に点在するフランジ部と蓋材とをシールする
ことにより、常に安定した高耐圧密封性を保持しながら
円滑なビール感で容易に蓋を開封することができる眉間
・凝集剥離機構によるシール構造の形成化が可能となる
。As described above, according to the present invention, by sealing the flange part and the lid material, which have countless portions that do not adhere to the lid material on the upper surface, a smooth beer taste can be achieved while always maintaining stable high pressure-resistant sealing properties. It is possible to form a seal structure using a glabella/cohesion peeling mechanism that allows the lid to be easily opened.
したがって、あらゆる種類の食品類を包装するために有
効な高品質の易開封性密封容器が能率よく製造すること
ができる。Therefore, high-quality, easy-to-open sealed containers that are effective for packaging all kinds of foods can be efficiently manufactured.
第１図は本発明の製造対象となる密封容器を示した断面
図、第２図は容器の部分平面図、第３図はフランジ部分
の拡大断面図、第４図は蓋材をシールした状態を示した
フランジ部分の拡大断面図、第５図は蓋を開封する状態
を示したフランジ部分の拡大断面図である。
ｌ・・・容器本体 ２・・・フランジ部３・・
・非接着性物質層 ４・・・隣接層５・・・蓋材
６・・・微小凹部７・・・非接着物質層の残
存部分Fig. 1 is a sectional view showing a sealed container to be manufactured by the present invention, Fig. 2 is a partial plan view of the container, Fig. 3 is an enlarged sectional view of the flange portion, and Fig. 4 is a state in which the lid is sealed. FIG. 5 is an enlarged sectional view of the flange portion showing a state in which the lid is opened. l... Container body 2... Flange part 3...
・Non-adhesive material layer 4... Adjacent layer 5... Lid material
6...Minute recess 7...Remaining portion of non-adhesive material layer
Claims (1)
しない物質層をラミネートし、そのフランジ部の上面を
超音波処理して前記物質層が破壊された無数の微小凹部
を形成したのち、該フランジ部に露出した隣接層と接着
性を有する蓋材をヒートシールすることを特徴とする密
封容器の製造方法。1. Laminate a material layer that does not adhere to the lid material on the innermost layer of the container body made of a multilayer sheet, and treat the upper surface of the flange with ultrasonic waves to form countless minute recesses in which the material layer is destroyed. A method for manufacturing a sealed container, comprising heat sealing an adhesive lid material to an adjacent layer exposed at the flange portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33757389A JP2633041B2 (en) | 1989-12-25 | 1989-12-25 | Manufacturing method of sealed container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33757389A JP2633041B2 (en) | 1989-12-25 | 1989-12-25 | Manufacturing method of sealed container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03200562A true JPH03200562A (en) | 1991-09-02 |
| JP2633041B2 JP2633041B2 (en) | 1997-07-23 |
Family
ID=18309921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33757389A Expired - Lifetime JP2633041B2 (en) | 1989-12-25 | 1989-12-25 | Manufacturing method of sealed container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2633041B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7147913B2 (en) | 2002-08-30 | 2006-12-12 | Ishida Co. Ltd. | Display strip |
| US7160595B2 (en) | 2002-08-30 | 2007-01-09 | Ishida Co., Ltd. | Display strip |
| US7476441B2 (en) | 2002-08-30 | 2009-01-13 | Ishida Co., Ltd. | Display strip and display strip and product assembly |
| US7588813B2 (en) | 2004-10-26 | 2009-09-15 | Ishida Co., Ltd. | Display strip and a display strip and product assembly |
| US7629044B2 (en) | 2002-12-17 | 2009-12-08 | Ishida Co., Ltd. | Display strip |
| US10919659B2 (en) | 2018-11-07 | 2021-02-16 | Bellisio Foods, Inc. | Systems and methods for packaging food products in containers and containers packaged by such systems and methods |
| JP2022529489A (en) * | 2019-04-19 | 2022-06-22 | シロパック イタリア エッセ．エッレ．エッレ． | Food container and its manufacturing method |
-
1989
- 1989-12-25 JP JP33757389A patent/JP2633041B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7147913B2 (en) | 2002-08-30 | 2006-12-12 | Ishida Co. Ltd. | Display strip |
| US7160595B2 (en) | 2002-08-30 | 2007-01-09 | Ishida Co., Ltd. | Display strip |
| US7476441B2 (en) | 2002-08-30 | 2009-01-13 | Ishida Co., Ltd. | Display strip and display strip and product assembly |
| US8435613B2 (en) | 2002-08-30 | 2013-05-07 | Ishida Co., Ltd. | Display strip |
| US7629044B2 (en) | 2002-12-17 | 2009-12-08 | Ishida Co., Ltd. | Display strip |
| US7588813B2 (en) | 2004-10-26 | 2009-09-15 | Ishida Co., Ltd. | Display strip and a display strip and product assembly |
| US10919659B2 (en) | 2018-11-07 | 2021-02-16 | Bellisio Foods, Inc. | Systems and methods for packaging food products in containers and containers packaged by such systems and methods |
| US11247799B2 (en) | 2018-11-07 | 2022-02-15 | Bellisio Foods, Inc. | Food containers |
| JP2022529489A (en) * | 2019-04-19 | 2022-06-22 | シロパック イタリア エッセ．エッレ．エッレ． | Food container and its manufacturing method |
| US12084219B2 (en) | 2019-04-19 | 2024-09-10 | Siropack Italia S.R.L. | Container for food products and method to manufacture it |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2633041B2 (en) | 1997-07-23 |
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