EP0105026A1 - Method of producing a can lid - Google Patents

Method of producing a can lid Download PDF

Info

Publication number
EP0105026A1
EP0105026A1 EP83810353A EP83810353A EP0105026A1 EP 0105026 A1 EP0105026 A1 EP 0105026A1 EP 83810353 A EP83810353 A EP 83810353A EP 83810353 A EP83810353 A EP 83810353A EP 0105026 A1 EP0105026 A1 EP 0105026A1
Authority
EP
European Patent Office
Prior art keywords
sealing
strip
lid
sealing strip
pouring opening
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
Application number
EP83810353A
Other languages
German (de)
French (fr)
Other versions
EP0105026B1 (en
Inventor
Siegfried Bloeck
Oldrich Stanek
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
Schweizerische Aluminium AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alusuisse Holdings AG, Schweizerische Aluminium AG filed Critical Alusuisse Holdings AG
Priority to AT83810353T priority Critical patent/ATE21055T1/en
Publication of EP0105026A1 publication Critical patent/EP0105026A1/en
Application granted granted Critical
Publication of EP0105026B1 publication Critical patent/EP0105026B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0089—Unusual details
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5024—Material
    • B65D2517/5032—Laminated
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5037—Unusual details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness

Definitions

  • the invention relates to a method for producing an at least coated on its outer surface the lid, in particular a painted lid of metal for beverage cans, having at least one Ausgiessöffnuno, being sealed to the outer surface of an at least Ausgiessöffnun g of overlapping closure strip having a she g elfähiaen layer, which optionally formed from a band coated with a sealable material or the like.
  • beverage cans are usually made from one piece tinplate, tin-free steel or aluminum, and after filling with a desired content through a lid, they are also made from the above. Materials closed.
  • a pouring opening is punched into these covers, for example, and covered again with a sealing strip.
  • the cover has a coating with a lacquer layer, for example a phenol epoxy resin, the sealing strips, e.g. from a thin aluminum strip, a coating from a thermoplastic, such as a polyamide.
  • the lid is placed on a preheated under-sealing tool and the sealing strip is sealed around the pouring opening by a likewise heated upper sealing tool by melting the polyamide sealing layer.
  • the inventor has set himself the goal of developing a method of the type mentioned above in which the formation of bubbles is avoided, the shelf life is increased and the adhesive strength from the closure strip to the lid is improved.
  • the sealing strip itself is heated shortly before and outside the sealing process. If the closure strip before the sealing-on of a first coated with a material defendingelfähi g en tape must be od.dgl.herausgeformt, so is within the scope of this invention that the tape od.d g l. shortly before the sealing strip is formed out.
  • the sealing strip or tape must be heated shortly before it is sealed so that the vaporizable and thus bubble-forming substance cannot reappear on the sealing layer. In experiments, a time period of 5 to 15 seconds has proven to be sufficient. Accordingly, the heater should; For example, an infrared radiator can be arranged directly in front of the sealing tool or a device punching out the sealing strip.
  • an aluminum thin strip with a polyamide layer is sealed onto a pouring opening on q .
  • the temperature of the upper sealing tool is 250 ° C, that of the lower 170 ° C.
  • the specific sealing pressure is 2000 N / cm 2 .
  • the aluminum thin strip passes through a convection oven preheated to 170 ° C.
  • preheating the tape within about 10 seconds is sufficient to eliminate blistering.
  • the belt in the preheating oven reaches a temperature of about 115 to 120 ° C.
  • the waiting time between preheating and sealing should not exceed 30 seconds. What duration of the pre-heating and which temperature is selected in a convection oven depends on the P ro- production conditions from. In any case, the limit is set by the tape material itself, since a tape that has been heated at 170 ° C for 1 minute, for example, can no longer be properly sealed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Closing Of Containers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Table Equipment (AREA)

Abstract

A process for manufacturing a lid having at least one outlet opening wherein a closure strip is sealed onto the lid covering the outlet opening comprising heating the closure strip to a temperature range of approximately 115 DEG -170 DEG C. within 10-15 seconds prior to sealing the closure strip onto the lid.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines zumindest auf seiner Aussenfläche beschichteten Deckels, insbesondere eines lackierten Deckels aus Metall für Getränkedosen, mit mindestens einer Ausgiessöffnuno, wobei auf die Aussenfläche ein zumindest die Ausgiessöffnung überdeckender Verschlussstreifen mit einer siegelfähiaen Schicht aufgesiegelt wird, welcher gegebenenfalls aus einem mit einem siegelfähigen Werkstoff beschichteten Band oder dergleichen herausgeformt wird.The invention relates to a method for producing an at least coated on its outer surface the lid, in particular a painted lid of metal for beverage cans, having at least one Ausgiessöffnuno, being sealed to the outer surface of an at least Ausgiessöffnun g of overlapping closure strip having a she g elfähiaen layer, which optionally formed from a band coated with a sealable material or the like.

Getränkedosen werden heute in der Regel aus Weissblech, zinnfreiem Stahl (tin free steel) oder Aluminium einstückig, hergestellt und nach Füllen mit einem gewünschten Inhalt durch einen Deckel ebenfalls aus den o.g. Werkstoffen verschlossen. In diese Deckel wird in einem vorgeschalteten Arbeitsgang eine Ausgiessöffnung beispielsweise gestanzt und mit einem Verschlussstreifen wieder abgedeckt. Der Dekkel weist eine Beschichtung mit einer Lackschicht, beispielsweise einem Phenol-Epoxyharz, auf, der Verschlussstreifen, z.B. aus einem Aluminiumdünnband, eine Beschichtung aus einem thermoplastischen Kunststoff, beispielsweise einem Polyamid. Der Deckel wird auf ein vorgewärmtes Untersiegelwerkzeug gelegt und der Verschlussstreifen durch ein ebenfalls erwärmtes oberes Siegelwerkzeug um die Ausgiessöffnung durch Aufschmelzen der Polyamid-Siegelschicht aufgesiegelt.Today, beverage cans are usually made from one piece tinplate, tin-free steel or aluminum, and after filling with a desired content through a lid, they are also made from the above. Materials closed. In a preceding operation, a pouring opening is punched into these covers, for example, and covered again with a sealing strip. The cover has a coating with a lacquer layer, for example a phenol epoxy resin, the sealing strips, e.g. from a thin aluminum strip, a coating from a thermoplastic, such as a polyamide. The lid is placed on a preheated under-sealing tool and the sealing strip is sealed around the pouring opening by a likewise heated upper sealing tool by melting the polyamide sealing layer.

Da insbesondere die Haftfestiakeit der Siegelschicht auf der lackierten Deckeloberfläche für die Verwendung der Dose von erheblicher Bedeutung ist, muss diesem Merkmal wesentliche Beachtung geschenkt werden. Die Haftfestigkeit bzw. Beständigkeit wird insbesondere beeinflusst durch

  • - die Positionierung des Deckels in der Siegelstation,
  • - die Planheit der Bereiche um die Ausgiessöffnung,
  • - die Druckverteilung beim Siegeln,
  • - die Siegelnahtdicke und Siegelnahtbreite,
  • - die Temperaturen des unteren und des oberen Siegelwerkzeuges,
  • - die Falzbedingungen der Deckel,
  • - die mögliche Höhe eines Innendruckes in einer geschlos- senen Dose,
  • - die Lagerungstemperatur der gefüllten Dose,
  • - den Kopfraum der gefüllten Dose,
  • - Einbrennbedingungen des Aussenlackes der Dosendeckel od.dgl.
Specifically, since the H aftfestiakeit the sealing layer on the painted surface cover for the use of the can is of considerable importance, has this feature, significant attention will be paid. The adhesive strength or resistance is influenced in particular by
  • - the positioning of the lid in the sealing station,
  • - the flatness of the areas g to Ausgiessöffnun,
  • - the pressure distribution when sealing,
  • - the sealing seam thickness and g elnahtbreite,
  • - the temperatures of the lower and the upper sealing tool,
  • - the folding conditions of the lids,
  • - the possible amount of internal pressure in a g eschlos- Senen can,
  • - the storage temperature of the filled can,
  • - the headspace of the filled can,
  • - Burning-in conditions of the exterior paint of the can lid or the like.

Insbesondere bei Getränkedosen für C02-haltige Getränke genügt ein einfaches Aufsiegeln des Verschlussstreifens für eine Langzeitlagerung bei Berücksichtigung der obengenannten, die Haftfestigkeit beeinflussenden Faktoren nicht. Bei diesen Dosen muss die Siegelnaht einen Innendruck von über 4 bar und Temperaturen von über 30°C über längere Zeiträume aushalten.In the case of beverage cans for drinks containing CO 2 in particular, simply sealing the sealing strip for long-term storage is not sufficient, taking into account the above-mentioned factors influencing the adhesive strength. With these cans, the sealed seam must withstand an internal pressure of over 4 bar and temperatures of over 30 ° C for longer periods.

Zur Verbesserung der Haftfestigkeit wurde daher vorgeschla- gen, nach dem Aufsiegeln des Verschlussstreifens auf den Dosendeckel diesen bis zum Aufschmelzen des Polyamids zu erwärmen und anschliessend wieder abzukühlen. Das Erwärmen geschieht dabei in einem Temperaturbereich von 175 - 300°C, wobei sich die Zeitdauer der Wärmeeinwirkung nach der Höhe der angewendeten Temperatur richtet. Dabei hat sich jedoch herausgestellt, dass in der Siegelnaht beim Nachschmelzen Blasen auftreten, welche die Wirksamkeit der Siegelnaht erheblich beeinträchtigen, wenn nicht sogar, je nach ihrer Vielzahl, aufheben.To improve the adhesive strength was, therefore, subject eschla- before g, this heat after the sealing on the closure strip to the can lid to the melting of the polyamide and then cool back down. The heating takes place in a temperature range of 175 - 300 ° C, whereby the duration of the heat depends on the level of the applied temperature. It has been found, however, that bubbles occur in the sealing seam when remelting, which significantly impair, if not cancel out, the effectiveness of the sealing seam, depending on the number thereof.

Der Erfinder hat sich zum Ziel gesetzt, ein Verfahren der obengenannten Art zu entwickeln, bei welchem die Blasenbildung vermieden, die Lagerbeständigkeit erhöht und die Haftfestigkeit von Verschlussstreifen zu Deckel verbessert wird.The inventor has set himself the goal of developing a method of the type mentioned above in which the formation of bubbles is avoided, the shelf life is increased and the adhesive strength from the closure strip to the lid is improved.

Zur Lösung dieser Aufgabe führt, dass der Verschlussstreifen kurz vor und ausserhalb des Sieaelvorganges selbst erwärmt wird. Sollte der Verschlussstreifen vor dem Aufsiegeln erst aus einem mit einem siegelfähigen Werkstoff beschichteten Band od.dgl.herausgeformt werden müssen, so liegt im Rahmen dieser Erfindung, dass das Band od.dgl. kurz vor dem Herausformen des Verschlussstreifens insgesamt erwärmt wird.To solve this problem, the sealing strip itself is heated shortly before and outside the sealing process. If the closure strip before the sealing-on of a first coated with a material siegelfähi g en tape must be od.dgl.herausgeformt, so is within the scope of this invention that the tape od.d g l. shortly before the sealing strip is formed out.

Bei diesem Verfahren hat sich überraschenderweise gezeigt, dass beim Nachschmelzen keinerlei Blasen auftraten. Durch die Erwärmung des Verschlussstreifens wird ein verdampfbarer und damit blasenbildender Stoff von der Oberfläche oder aus dem Inneren der siegelfähigen Schicht entfernt, welcher zumindest zum Teil aus einem Wasserfilm od.dal. bestehen dürfte.This method has surprisingly shown that that no bubbles appeared during the remelting. By heating the sealing strip, an evaporable and thus bubble-forming substance is removed from the surface or from the inside of the sealable layer, which at least partially consists of a water film or the like. should exist.

Die Erwärmung des Verschlussstreifens bzw. des Bandes, muss kurz vor dem Aufsiegeln erfolgen, damit sich der verdampfbare und damit blasenbildende Stoff auf der Siegelschicht nicht wieder einstellen kann. Bei Versuchen hat sich hierbei eine Zeitspanne von 5 - 15 Sek. als genügend erwiesen. Dementsprechend sollte die Erwärmeinrichtung; beispielsweise ein Infrarotstrahler, unmittelbar vor dem Siegelwerkzeug bzw. einer dem Verschlussstreifen herausstanzenden Einrichtung angeordnet sein.The sealing strip or tape must be heated shortly before it is sealed so that the vaporizable and thus bubble-forming substance cannot reappear on the sealing layer. In experiments, a time period of 5 to 15 seconds has proven to be sufficient. Accordingly, the heater should; For example, an infrared radiator can be arranged directly in front of the sealing tool or a device punching out the sealing strip.

Beispielexample

Auf einen beidseits lackierten Deckel aus zinnfreiem Stahl (tin free steel) wird ein mit einer Polyamidschicht versehenes Aluminium-Dünnband auf eine Ausgiessöffnung aufqesie- gelt. Die Temperatur des oberen Siegelwerkzeuges beträgt 250°C, die des unteren 170°C. Der spezifische Siegeldruck liegt bei 2000 N/cm2. Vor dem Aufsiegeln durchläuft das Aluminium-Dünnband einen auf 170°C vorerwärmten Umluftofen.On a lid made of tin-free steel (lacquered on both sides), an aluminum thin strip with a polyamide layer is sealed onto a pouring opening on q . The temperature of the upper sealing tool is 250 ° C, that of the lower 170 ° C. The specific sealing pressure is 2000 N / cm 2 . Before sealing, the aluminum thin strip passes through a convection oven preheated to 170 ° C.

Eine Versuchsreihe mit diesen Siegelbedingungen, jedoch unterschiedlicher Verweilzeit des Bandes im Umluftofen sowie unterschiedlicher Wartezeit zwischen dem Herausnehmen des Bandes aus dem Umluftofen und dem Aufsiegelvorgang, ergab folgende Ergebnisse bezüglich der Blasenbildung beim Nachschmelzen:

Figure imgb0001
A series of tests with these sealing conditions, but with different dwell times of the strip in the forced-air oven and different waiting times between removing the strip from the forced-air oven and the sealing process, gave the following results with regard to the formation of bubbles during remelting:
Figure imgb0001

Diese Ergebnisse zeigen, dass eine Vorerwärmung des Bandes innerhalb von etwa 10 sec genügt, um die Blasenbildung auszuschalten. In dieser Zeit erreicht das Band in dem Vorwärmofen eine Temperatur vop etwa 115 bis 120°C. Die Wartezeit zwischen dem Vorwärmen und dem Aufsiegeln soll 30 sec nicht übersteigen. Welche Dauer der Vorerwärmung und welche Temperatur im Umluftofen gewählt wird, hängt von den Pro- duktionsbedingungen ab. Jedenfalls ist die Grenze durch das Bandmaterial selbst gesetzt, da sich ein Band, welches z.B. 1 Min. bei 170°C erwärmt wurde, nicht mehr einwandfrei siegeln lässt.These results show that preheating the tape within about 10 seconds is sufficient to eliminate blistering. During this time, the belt in the preheating oven reaches a temperature of about 115 to 120 ° C. The waiting time between preheating and sealing should not exceed 30 seconds. What duration of the pre-heating and which temperature is selected in a convection oven depends on the P ro- production conditions from. In any case, the limit is set by the tape material itself, since a tape that has been heated at 170 ° C for 1 minute, for example, can no longer be properly sealed.

Ueberraschenderweise zeigt sich, dass derart vorerwärmte Bänder bzw. die Siegelnähte dieser Bänder den sogenannten Impact-Test nach Gardner (Belastung 3 inchpound) auch ohne einen besonderen Nachschmelzvorgang überstehen.Surprisingly, it can be seen that tapes preheated in this way or the sealing seams of these tapes pass the so-called Gardner Impact Test (3 inchpound load) even without a special remelting process.

In einem Nachschmelzvorgang können die nach dem erfindungs-gemässen Verfahren hergestellten Siegelnähte selbst bei Temperaturen von über 210°C bei einer Erwärmungszeit von 1 Min blasenfrei aufgeschmolzen werden.In a Nachschmelzvorgang the sealing seams produced by the erfindun g s-process according to g MTime are melted bubbles from 1 min even at temperatures of over 210 ° C at a Erwärmun.

Claims (5)

1. Verfahren zum Herstellen eines zumindest auf seiner Aussenfläche beschichteten Deckels, insbesondere eines lak- Kierten Deckels aus Metall für Getränkedosen, mit mindestens einer Ausgiessöffnung, wobei auf die Aussenfläche ein zumindest die Ausgiessöffnung überdeckender Verschlussstreifen mit einer siegelfähigen Schicht aufgesiegelt wird,
dadurch gekennzeichnet,
dass der Verschlussstreifen kurz vor und ausserhalb des Siegelvoraanges selbst erwärmt wird.1. A process for producing an at least coated on its outer surface the lid, in particular a LAK K ierten lid of metal for beverage cans, having at least one pouring opening, wherein a at least the pouring opening of overlapping closure strip is sealed with a sealable layer on the outer surface,
characterized,
that the sealing strip itself is heated shortly before and outside the sealing process. 2. Verfahren zum Herstellen eines zumindest, auf seiner Aussenfläche beschichteten Deckels, insbesondere eines lakkierten Deckels aus Metall für Getränkedosen, mit mindestens einer Ausgiessöffnung, wobei auf die Aussenfläche ein zumindest die Ausgiessöffnung überdeckender Verschlussstreifen aufgesiegelt wird, welcher aus einem mit einem siegelfahigen Werkstoff beschichteten Band od.dgl. herausgeformt wird, dadurch gekennzeichnet, dass das Band od.dgl. kurz vor dem Herausformen des Verschlussstreifens erwärmt wird.2. Method for producing at least one cover coated on its outer surface, in particular a lacquered cover made of metal for beverage cans, with at least one pouring opening, a sealing strip covering at least the pouring opening being sealed onto the outer surface, which is made of a band coated with a sealable material or the like. is formed, characterized in that the band or the like. is heated shortly before the sealing strip is formed. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass als Verschlussstreifen oder als Band ein mit einem Polyamid als siegelfähige Schicht beleqtes Aluminiumdünnband verwendet wird.3. The method of claim 1 or 2, characterized in that a bele with a polyamide as a sealable layer q tes aluminum thin strip is used as a closure strip or a band. 4. Verfahren nach wenigstens einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass der Verschlussstreifen oder das Band innerhalb von 10 - 15 sec auf einen Temperaturbereich von ca. 115 - 170°C erwärmt wird.4. The method according to at least one of claims 1-3, characterized in that the sealing strip or the tape is heated to a temperature range of approximately 115-170 ° C within 10-15 seconds. 5. Verfahren nach wenigstens einem der Anspruche 1 - 4, dadurch gekennzeichnet, dass das Aufsiegeln des Verschlussstreifens spätestens 30 sec nach dem Erwärmen des Verschlussstreifens erfolat.5. The method according to at least one of claims 1-4, characterized in that the sealing of the sealing strip is carried out at the latest 30 seconds after the heating of the sealing strip.
EP83810353A 1982-09-02 1983-08-10 Method of producing a can lid Expired EP0105026B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810353T ATE21055T1 (en) 1982-09-02 1983-08-10 PROCESS FOR MAKING A CAN LID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH521882 1982-09-02
CH5218/82 1982-09-02

Publications (2)

Publication Number Publication Date
EP0105026A1 true EP0105026A1 (en) 1984-04-04
EP0105026B1 EP0105026B1 (en) 1986-07-30

Family

ID=4289923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810353A Expired EP0105026B1 (en) 1982-09-02 1983-08-10 Method of producing a can lid

Country Status (11)

Country Link
US (1) US4529468A (en)
EP (1) EP0105026B1 (en)
JP (1) JPS5964130A (en)
AT (1) ATE21055T1 (en)
AU (1) AU565283B2 (en)
CA (1) CA1225974A (en)
DE (2) DE3233106C2 (en)
DK (1) DK155694C (en)
ES (1) ES525294A0 (en)
NO (1) NO155382C (en)
ZA (1) ZA835907B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762579A (en) * 1985-12-03 1988-08-09 Toyo Seikan Kaisha, Ltd. Process for producing easily openable closure
CH673696A5 (en) * 1987-03-16 1990-03-30 Meta Fer Holding S A Societe A
DE10108009A1 (en) * 2001-02-20 2002-08-29 Schmalbach Lubeca lid cover
USD637489S1 (en) 2010-12-10 2011-05-10 Pactiv Corporation Pull grip feature of a container lid
USD638704S1 (en) 2010-12-10 2011-05-31 Pactiv Corporation Container lid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH266427A (en) * 1946-12-23 1950-01-31 Wicanders Korkfabriker Ab Process for the production of bottle caps by punching out sheet metal strips and a device for carrying out this process.
US3292828A (en) * 1964-09-17 1966-12-20 Nat Can Corp Easy opening can end
US3380622A (en) * 1966-12-15 1968-04-30 Procter & Gamble Method and material for hermetically sealing containers
DE2519709A1 (en) * 1974-09-18 1976-04-08 Continental Can Co Tape seal container closure for liquid containers - has folded over ring pull and dart folds at chick guide grooves
US4004530A (en) * 1973-05-29 1977-01-25 Continental Can Company, Inc. Method for making an easy opening end closure for a container

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6804634A (en) * 1968-04-02 1969-10-06
GB1361653A (en) * 1970-10-21 1974-07-30 Dynamit Nobel Ag Use of hot melt adhesives in bonding sheet materials
JPS5037690B2 (en) * 1971-08-04 1975-12-04
US4029033A (en) * 1974-09-18 1977-06-14 The Continental Group, Inc. Convenience opening of containers for liquid products
CH629983A5 (en) * 1978-06-06 1982-05-28 Alusuisse METHOD FOR PRODUCING LID RINGS FOR CAN CAN.
DE2908397A1 (en) * 1979-03-03 1980-09-04 Akerlund & Rausing Ab METHOD FOR CLOSING A CARTON CONTAINER AND DEVICE FOR CARRYING OUT THE METHOD
CH641109A5 (en) * 1979-10-16 1984-02-15 Alusuisse PRESSURE RESISTANT LID FOR BEVERAGE CAN.
JPS601216B2 (en) * 1981-03-02 1985-01-12 東洋製罐株式会社 Easy-open container lid and manufacturing method thereof
CH653929A5 (en) * 1981-05-07 1986-01-31 Alusuisse METHOD FOR PRODUCING A CAN LID WITH AT LEAST ONE POUR HOLE CLOSED BY A SEALED SEALING STRIP.
CH653305A5 (en) * 1982-03-05 1985-12-31 Alusuisse PROCESS FOR MAKING A CAN LID.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH266427A (en) * 1946-12-23 1950-01-31 Wicanders Korkfabriker Ab Process for the production of bottle caps by punching out sheet metal strips and a device for carrying out this process.
US3292828A (en) * 1964-09-17 1966-12-20 Nat Can Corp Easy opening can end
US3380622A (en) * 1966-12-15 1968-04-30 Procter & Gamble Method and material for hermetically sealing containers
US4004530A (en) * 1973-05-29 1977-01-25 Continental Can Company, Inc. Method for making an easy opening end closure for a container
DE2519709A1 (en) * 1974-09-18 1976-04-08 Continental Can Co Tape seal container closure for liquid containers - has folded over ring pull and dart folds at chick guide grooves

Also Published As

Publication number Publication date
DE3364947D1 (en) 1986-09-04
DK397783A (en) 1984-03-03
DE3233106A1 (en) 1984-03-08
DK155694B (en) 1989-05-01
JPH0353057B2 (en) 1991-08-13
DK155694C (en) 1989-09-25
AU565283B2 (en) 1987-09-10
ES8407313A1 (en) 1984-10-01
DK397783D0 (en) 1983-09-01
ATE21055T1 (en) 1986-08-15
DE3233106C2 (en) 1986-01-09
NO155382B (en) 1986-12-15
NO155382C (en) 1987-03-25
AU1789383A (en) 1984-03-08
NO833121L (en) 1984-03-05
EP0105026B1 (en) 1986-07-30
ES525294A0 (en) 1984-10-01
US4529468A (en) 1985-07-16
JPS5964130A (en) 1984-04-12
CA1225974A (en) 1987-08-25
ZA835907B (en) 1984-04-25

Similar Documents

Publication Publication Date Title
DE69925107T2 (en) LEAD-FREE SOLDER POWDER AND MANUFACTURING METHOD THEREFOR
DE3208593C1 (en) Process for the production of a can lid lacquered on both sides
EP0105026B1 (en) Method of producing a can lid
EP0064948A2 (en) Method of making lids with a closing strip which covers at least one pouring hole, particularly for beverage cans
EP0418725B1 (en) Process to make a container
DE2702304A1 (en) THERMOPLASTIC COATING COMPOUNDS AND METHOD OF APPLYING THE SAME TO METAL OBJECTS
DE19934995A1 (en) Procedure for seam sealing
DE1644690C3 (en) Tin can body
DE2049337C3 (en) Process for the production of a coated ferrous substrate
CH637855A5 (en) Beverage package for carbonated and uncarbonated beverages (drinks)
DE2829339B2 (en) Process for brazing unalloyed hypoeutectoid steels
DE3013159C2 (en) Coating on weakly lubricated tin and a method of making such a coating
US3894847A (en) Steel sheet having a nickel composite film and a method for manufacturing the same
DE877234C (en) Process for hot-dip tinning or galvanizing of iron sheets or strips
DE1586288A1 (en) Method for closing sterilizable containers, as well as containers suitable for this
DE526863C (en) Process for joining rubber and metal
DE691173C (en) Sheet metal container
DE2352239A1 (en) HEAT-CURABLE COATING AGENTS FOR ENAMEL COATING
DE656541C (en) Process for the local limitation of surface hardening, especially when nitriding workpieces
DE2800870A1 (en) METHOD FOR PROTECTING SUBSTRATES
DE1646025C3 (en) Layered body, consisting of a ferrous metal as substrate, an intermediate layer and a polyethylene layer sintered on it
DE19812302A1 (en) Metal composite material and method for its production
DE2017906A1 (en) Process for coating metal with plastic
DE2835672A1 (en) Container closure applicator system - uses deformable pressure head to press cover onto heated container rim
AT227109B (en) Bottle cap

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19840719

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

RBV Designated contracting states (corrected)

Designated state(s): AT CH DE GB IT LI NL

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE GB IT LI NL

REF Corresponds to:

Ref document number: 21055

Country of ref document: AT

Date of ref document: 19860815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3364947

Country of ref document: DE

Date of ref document: 19860904

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910712

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910715

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910717

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910718

Year of fee payment: 9

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910831

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920810

Ref country code: AT

Effective date: 19920810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920831

Ref country code: CH

Effective date: 19920831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920810

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930501