JPH04235027A - 剥離式閉鎖部材を備えた容器の製造方法 - Google Patents

剥離式閉鎖部材を備えた容器の製造方法

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Publication number
JPH04235027A
JPH04235027A JP3098388A JP9838891A JPH04235027A JP H04235027 A JPH04235027 A JP H04235027A JP 3098388 A JP3098388 A JP 3098388A JP 9838891 A JP9838891 A JP 9838891A JP H04235027 A JPH04235027 A JP H04235027A
Authority
JP
Japan
Prior art keywords
container
bead
sealing
lid
heat
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
Application number
JP3098388A
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English (en)
Inventor
Jean-Louis Flork
ジヤン−ルイ・フロール
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ONO
Original Assignee
ONO
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Filing date
Publication date
Application filed by ONO filed Critical ONO
Publication of JPH04235027A publication Critical patent/JPH04235027A/ja
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76—Making non-permanent or releasable joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C2045/1601—Making multilayered or multicoloured articles the injected materials not being adhered or bonded to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2025—Multi-layered container, e.g. laminated, coated

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、容器特に食品用容器の
製造方法に係わる。
【０００２】本発明はより特定的には、食品を包装する
ための容器であって包装の密封が容器の製造時に形成さ
れる手段を介して行われる容器の製造に係わる。本発明
で製造するのは主に手で開けることができる容器である
ため、剥離式閉鎖部材（ｆｅｒｍｅｔｕｒｅ　　ｐｅｌ
ａｂｌｅ）を備えるのが好ましい。
【０００３】
【従来の技術】このような容器では閉鎖機能が下記の要
件を満たさなければならない。
【０００４】１）密封処理後の移送（包装ライン、送出
ライン等）、通常１２１°Ｃで１時間行われるオートク
レーブ内での滅菌（耐熱性、密着強度等が問題になる）
、熱帯条件で１時間に及び得る貯蔵（４０°Ｃ／９０％
相対湿度）並びに熱衝撃による急激な温度変化（冷凍器
内の−１８°Ｃから＋４０°Ｃへの変化）といった種々
の作用の影響下で食品の賞味期間にわたって密封状態を
維持する。
【０００５】２）使用時に一定の力で簡単に開けること
ができる。
【０００６】３）清潔な面で閉鎖を行う。
【０００７】例えばプラスチック材料容器について密封
及び簡単な開放という前記１）及び２）の機能（３は除
く）を得るために、欧州特許出願ＥＰ−Ａ−０　　２６
２　　６５２号（ＩＤＥＭＩＴＳＵ）では、１）蓋及び
容器の接触し合う面を全体的に熱溶接することにより密
封状態を得、２）補助層と蓋もしくは容器のベースとを
引き剥がすために補助層に切込みを入れて一定の開放力
で剥離できるようにするという条件を満たすべく、蓋又
は閉鎖用部材の部分に同時押出によって補助層を形成し
、これに特定の形状の切口を予め設けることが提案され
ている。
【０００８】しかしながら、この方法はコストが比較的
高く、シート製造時に補助層を該シート全体にわたって
付加しなければならない。
【０００９】本発明者は、容器を閉鎖するための材料を
容器本体の製造時又は容器の密封時に閉鎖部分だけに付
加しながら容器を製造する方法を発見した。
【００１０】
【課題を解決するための手段】そこで本発明では、単層
もしくは多層シートの成形によって形成され、剥離式密
封部材を備えた容器の製造方法であって、容器の密封を
熱溶着性（ｔｈｅｒｍｏｓｏｕｄａｂｌｅ）材料を用い
て実施し、この熱溶着性材料を容器の熱成形時又は密封
時に容器上に射出することを特徴とする方法を提供する
。
【００１１】本発明は特に、プラスチック材料容器の本
体の製造で使用される熱成形技術及び密封技術をプラス
チック材料の射出技術と組合わせるという、これまで考
えられなかった手法を提案する。
【００１２】このような方法では、舟形容器、ポット等
の容器の製造に使用する単層もしくは多層シートを、食
品工業又は製薬工業で一般的に使用されている熱成形可
能なプラスチック材料、特にポリオレフィン（例えばポ
リプロピレン即ちｐｐ）、ポリスチレンもしくはポリエ
ステルをベースとする単層シート、又はこれらの単層に
酸素遮蔽層（例えばビニルアルコールとエチレンとのコ
ポリマー即ちＥＶＯＨ）を付加した多層シートの中から
選択し得る。前記多層シートは通常サンドイッチ構造を
有する（例えばｐｐ／接着剤／ＥＶＯＨ／接着剤／ｐｐ
）。これらのシートの厚みは通常０．３〜３ｍｍである
。
【００１３】剥離式閉鎖部材（又は蓋）は、食品工業又
は製薬工業で一般的に使用されている単層又は多層シー
ト、例えばアルミニウム、アルミニウム／ポリオレフィ
ン、ＰＥＴ／アルミニウム／ラッカー、プラスチック加
工した紙、又は容器材料として上述したような単層もし
くは多層プラスチック材料で形成し得る。
【００１４】本発明では、容器を密封するための熱溶着
性材料を容器上、特に容器の縁部に射出する。この操作
は、容器の周縁に沿って１つ又は複数の連続閉鎖線が形
成されるように行う。本明細書ではこの線を以後ビード
（ｊｏｎｃ又はｃｏｒｄｏｎ）と称する。
【００１５】ビードの材料は、剥離可能な部分を容器と
ビードとの間に得るか、ビード材料中に得る（凝集破壊
（ｒｕｐｔｕｒｅ　　ｃｏｈｅｓｉｖｅ）か、又はビー
ドと蓋との間に得るかに応じて選択する。
【００１６】この剥離部分は、ビード材料の選択、並び
にビードとビードを支持する容器もしくは蓋との組合わ
せの選択に応じて決まる。例えば、一般的な例として容
器の表面がポリオレフィンの場合には、熱溶着性材料を
主にポリエチレン、ポリプロピレン又はこれらの材料と
酢酸ビニル等とのコポリマーから選択し得る。但し、前
記コポリマーは、カルボン酸もしくはそのエステル、例
えばアクリル酸エステルもしくはメタクリル酸エステル
、又はイソプレンゴム、スチレンブタジエン等で改質し
たものである。これらのポリマーは製造業者によって通
常接着剤と呼ばれ、例えばＥｘｘｏｎ社のＥｓｃｏｒＲ
、Ｄｕｐｏｎｔ　　ｄｅＮｅｍｏｕｒｓ社のＢｙｎｅｌ
Ｒ、Ａｔｏ社のＯｒｅｖａｃＲ、ＭｉｔｓｕｉのＡｄｍ
ｅｒＲ、ＭｉｔｓｕｂｉｓｈｉのＭｏｄｉｃＲ等がある
。
【００１７】前記熱溶着性材料は、熱成形機の種類に応
じて可動点又は固定点に従い射出し得る。
【００１８】射出操作は、ビードの形状（断面、体積）
、ビードの受容形態及び容器上のビード位置にも依存す
る。本発明のように射出操作を熱成形と組合わせると、
１つ又は複数の機能を果たすのに必要な条件を最もバラ
ンス良く満たすことができる。
【００１９】ビードの形状は密封が確実に行われるよう
に、即ち材料の量が十分であり且つハサミの作用（ｅｆ
ｆｅｔ　　ｄｅ　　ｃｉｓｅａｕｘ）でファイバが切断
（ｃｏｕｐａｇｅ）されるように選択する。ビードの断
面はほぼ矩形、三角形又は円形にし得る。
【００２０】ビードの受容形態は、密封時にビードがキ
ャビティで成形され且つ密封ゾーンが規定されるように
選択する。
【００２１】ビードの位置としては、最も汚れにくい部
分、ビードが内圧に耐えられるような部分、容器の縁、
特に容器の縁部の上表面又は下表面での閉鎖を可能にす
る部分を選択する。
【００２２】本発明の方法を使用すると、熱溶着性材料
をより広い範囲で選択することができ（この材料は同時
押出し基準に従う必要がない）、ビード位置の選択範囲
が広がり、ビード形状の選択範囲も広がり、ビード材料
の量の選択範囲も広がり（この量はいずれにしろ前出の
ＥＰ−Ａ−０　　２６２　　６５２号に記載の層の量よ
り少ない）、且つ複数の部屋又は小区画を有する容器を
製造する上での選択範囲も広がる（ビードの材料及び形
状を各区画毎に選択し得る）。
【００２３】
【実施例】以下、添付図面に基づき、本発明をより詳細
に説明する。
【００２４】図１では、滅菌処理できる食品を詰めるた
めの舟形容器１が、多層シート（ＰＰ／接着剤／ＥＶＯ
Ｈ／接着剤／ＰＰ、厚み１．２ｍｍ）を用いて、繰返し
使用できる熱成形型により熱成形されている。前記熱成
形型は主に、雌型２と、雄型プラグ３と、しわ押さえ部
材（Ｓｅｒｒｅ−ｆｌａｎｃｓ）４とを含む。しわ押さ
え部材４は、熱成形した容器１の縁部７にビードの形態
で射出される熱溶着性材料（Ｄｕｐｏｎｔ　　ｄｅ　　
Ｎｅｍｏｕｒｓ社のＢｙｎｅｌＲ）を送給するための通
路５を有する。このビード６はほぼ円形の断面を有し、
食品又は薬品を詰め且つ高温加圧下で蓋として機能する
ＰＥＴ／アルミニウム／ラッカーのシートにより被覆し
た容器１を密封する役割を果たす。この容器は、例えば
１２１°Ｃで１時間の滅菌処理にかけ且つ−２０°Ｃ及
び＋４０°Ｃの熱衝撃を受けた後でも、蓋を剥ぎ取るこ
とによって簡単に開放できる。
【００２５】図２〜図４は、容器１の縁部７におけるビ
ード６の配置（図２のＡ〜図４のＡ）、その後の密封（
図２のＢ〜図４のＢ）及び開放（図２のＣ〜図４のＣ）
に関する３つの実施例を示している。
【００２６】熱溶着性材料からなるビード６の断面は、
図２のＡのようなほぼ円形、図３のＡ及び図４のＡのよ
うな三角形、又は図３のＡの側端デポジットのようなほ
ぼ矩形にし得る。本発明では、容器の縁部の任意の場所
に熱溶着性材料を該材料の線が１つ（図２）、２つ（図
３）又はそれ以上、例えば４つ（図４）形成されるよう
にデポジットし得る。図２のＢ、図３のＢ及び図４のＢ
はデポジットした前記材料を介して行われる密封の状態
を示している。いずれの場合も、蓋の縁部は前記材料を
介して容器の縁部に付着している。図２のＣ、図３のＣ
及び図４のＣは蓋を剥がすことによって簡単に実施でき
る容器の開放を示している。ビードの材料は、該材料が
容器上に残る（図２のＣ）か又は蓋上に残る（図３のＣ
及び図４のＣ）ように選択し得る。
【００２７】当業者であれば容易に理解できるように、
本発明の方法は、容器本体をプラスチック材料シートで
はなく多層フィルムで形成する場合にも適用できる。こ
の多層フィルムは、容器本体の成形時にビードを同時射
出する面を構成する外側プラスチック材料層を含む。
【図面の簡単な説明】
【図１】本発明によって改良した舟形容器を熱成形する
ための装置を簡単に示す部分断面図である。
【図２】本発明の方法で製造した容器の密封及び開放の
一実施例を簡単に示す説明図である。
【図３】本発明の方法で製造した容器の密封及び開放の
別の実施例を簡単に示す説明図である。
【図４】本発明の方法で製造した容器の密封及び開放の
更に別の実施例を簡単に示す説明図である。
【符号の説明】
１　　容器 ５　　熱溶着性材料送給通路 ６　　ビード

Claims (4)

    【特許請求の範囲】
  1. 【請求項１】開口を有する本体と、開口の近傍に配置さ
    れた熱溶着性材料のビードと、ビード上に接着した蓋と
    を含む容器の製造方法であって、熱溶着性ビードを容器
    本体の製造時又は蓋の接着操作時に開口の近傍に射出す
    ることを特徴とする方法。
  2. 【請求項２】熱溶着性材料を、容器の周縁に沿って延び
    る１つ又は複数の連続閉鎖線に従って射出することを特
    徴とする請求項１に記載の方法。
  3. 【請求項３】熱溶着性材料を容器の縁部に射出すること
    を特徴とする請求項１又は２に記載の方法。
  4. 【請求項４】請求項１から３のいずれか一項に記載の方
    法で製造した、蓋の剥離によって開放できる容器。
JP3098388A 1990-02-02 1991-02-01 剥離式閉鎖部材を備えた容器の製造方法 Pending JPH04235027A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001251A FR2657849B1 (fr) 1990-02-02 1990-02-02 Procede de fabrication de recipients en matiere plastique obtenus par thermoformage et munis d'une fermeture pelable.
FR9001251 1990-02-02

Publications (1)

Publication Number Publication Date
JPH04235027A true JPH04235027A (ja) 1992-08-24

Family

ID=9393355

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Country Link
EP (1) EP0440550B1 (ja)
JP (1) JPH04235027A (ja)
AR (1) AR246459A1 (ja)
AT (1) ATE95789T1 (ja)
AU (1) AU638092B2 (ja)
BR (1) BR9100432A (ja)
CA (1) CA2035531A1 (ja)
CS (1) CS19491A2 (ja)
DE (1) DE69100484T2 (ja)
DK (1) DK0440550T3 (ja)
ES (1) ES2047381T3 (ja)
FR (1) FR2657849B1 (ja)
HU (1) HUT56781A (ja)
NZ (1) NZ236928A (ja)
PL (1) PL165154B1 (ja)
RU (1) RU2016819C1 (ja)
YU (1) YU18891A (ja)

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WO1998039218A2 (en) * 1997-03-03 1998-09-11 Abbott Laboratories Heat sealer and method for using same
DE19813846A1 (de) * 1998-03-27 1999-10-14 4P Rube Goettingen Gmbh Verfahren zum Versiegeln eines Behälters
FR2856657B1 (fr) * 2003-06-30 2005-09-23 Bonduelle Sa Ets Procede et installation de conditionnement de produits alimentaires sous atmosphere modifiee.
US8800798B2 (en) 2005-12-22 2014-08-12 Superfos A/S Packaging with lid sealable to container and a method of sealing the packaging
US8746489B2 (en) 2008-06-03 2014-06-10 Valspar Sourcing, Inc. Easy-open container and container coating
GB201000310D0 (en) * 2010-01-08 2010-02-24 Linpac Packaging Ltd Container
WO2011120715A1 (de) * 2010-04-01 2011-10-06 Silver Plastics Gmbh & Co. Kg Verpackungsschale und vorrichtung zur herstellung derselben
WO2012069050A1 (en) 2010-11-25 2012-05-31 Faerch Plast A/S Sealed container for foodstuffs
CH710318A1 (de) * 2014-10-30 2016-05-13 Alpla Werke Alwin Lehner Gmbh & Co Kg Kunststoffbehälter mit siegelbarer Behältermündung.
DE102018000407A1 (de) * 2018-01-19 2019-07-25 MChef GmbH & Co.KG Geschirreinheit und Verfahren zum Versiegeln von teilzubereiteten Speisen
DE102019004989B4 (de) * 2019-07-18 2022-05-05 MChef GmbH & Co.KG Geschirreinheit und Verfahren zum Versiegeln von teilzubereiteten Speisen
CN217158387U (zh) * 2022-01-27 2022-08-09 宁德时代新能源科技股份有限公司 壳体、电池单体、电池及用电装置

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US3278109A (en) * 1963-06-14 1966-10-11 E S & A Robinson Holdings Ltd Bag, carton and package
FR2587684B1 (fr) * 1985-09-24 1988-03-11 Rhone Poulenc Films Procede d'emballage pour articles alimentaires et notamment de plats cuisines, assurant une longue duree de conservation a temperature ambiante
KR910002152B1 (ko) * 1986-09-30 1991-04-06 이데미쓰세끼유가가꾸 가부시끼가이샤 용이 개봉성 포장용기 및 그의 리드

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BR9100432A (pt) 1991-10-22
ATE95789T1 (de) 1993-10-15
ES2047381T3 (es) 1994-02-16
NZ236928A (en) 1994-03-25
CS19491A2 (en) 1991-09-15
EP0440550A1 (fr) 1991-08-07
RU2016819C1 (ru) 1994-07-30
FR2657849A1 (fr) 1991-08-09
PL288903A1 (en) 1991-09-09
FR2657849B1 (fr) 1992-05-22
YU18891A (sh) 1995-10-03
HUT56781A (en) 1991-10-28
PL165154B1 (pl) 1994-11-30
AU7018691A (en) 1991-08-08
CA2035531A1 (fr) 1991-08-03
AU638092B2 (en) 1993-06-17
DE69100484T2 (de) 1994-02-03
AR246459A1 (es) 1994-08-31
HU910362D0 (en) 1991-08-28
EP0440550B1 (fr) 1993-10-13
DK0440550T3 (da) 1994-02-21
DE69100484D1 (de) 1993-11-18

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