WO1983003589A1 - Method for sealing a closure on a can - Google Patents
Method for sealing a closure on a can Download PDFInfo
- Publication number
- WO1983003589A1 WO1983003589A1 PCT/CH1983/000041 CH8300041W WO8303589A1 WO 1983003589 A1 WO1983003589 A1 WO 1983003589A1 CH 8300041 W CH8300041 W CH 8300041W WO 8303589 A1 WO8303589 A1 WO 8303589A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating
- film
- resin
- surlyn
- ppg
- 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.)
- Ceased
Links
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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/30—Iron, e.g. steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2363/00—Epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- 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
-
- 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
- B65D2577/2041—Pull tabs
- B65D2577/205—Pull tabs integral with the closure
Definitions
- the present invention relates to a method for producing a canned container with a welded-on membrane closure and a canned container with a rum made of sheet metal with a welded-in membrane closure.
- Containers with a body and lid which are connected to one another by the application of pressure and temperature by means of a hot glue are known.
- the hull and lid are usually made of plastic for semi-preserves.
- plastic for semi-preserves.
- hot filled preserves e.g. Jams
- containers made of coated aluminum tape are used, in which the crumb is glued to the coated hull with a hot glue.
- EP-Application No. 11 588 describes such a method for closing glass or ceramic containers with
- the aluminum film has on the side facing the container an application made of plastic which melts under the influence of heat and pressure.
- connection or adhesive bonding of the coated aluminum foil to the container requires a complex and time-consuming pretreatment of the container edge, which renders the glass container uneconomical for inexpensive filling goods.
- a closure has become known from US Pat. No. 4,253,584, in which an aluminum band serving as a closing membrane with polyamide and one for receiving the Membrane provided ring has a coating of a layer of an organasol and a layer of a vinyl copolymer.
- the container is made to be gas-tight.
- preparation (coating) is necessary for the ring.
- Container closures with a cover ring for holding the membrane are too expensive to manufacture for preserves which are consumed immediately after the container has been opened.
- the filling material cannot be removed completely because the ring creates a shoulder that significantly reduces the cross-section of the container.
- the known sealing methods for containers require the presence of a coating or pretreatment of the fuselage or an insert ring that is matched to the adhesive or the lacquer coating of the cover or the cover membrane.
- cans represent a mass product, it is impossible for the can manufacturer to provide cans with inner coatings, the specification of which the consumer would have to prescribe. Warehousing can only be done in standard ⁇ ⁇ ⁇ execution can be used economically.
- thermoset plastics The proven and tested white and gold lacquers used today as standard for coating the inside of the container of sterilizable cans are based on thermoset plastics. These coatings meet the conditions imposed on them with regard to taste neutrality with respect to the filling material, excellent adhesive properties on the substrate and protection against corrosion thereof, such as simple applications and a favorable price.
- the object of the present invention is to create a lid closure in the form of an aluminum membrane, which can be directly connected or welded to any standard container hull under the influence of pressure and temperature.
- Another task is to coat the membrane seal de art so that a flawless, sterilization-proof connection with the fuselage is created.
- Another object is to design the coating of the membrane in such a way that a secure connection thereof is ensured over the entire circumference of the container body.
- a further advantage of the invention is that only the coating of the closure, or the membrane, or the aluminum strip used for this purpose has to be matched to the surface quality of the container body.
- the expensive coating of the hulls or fuselage parts with special adhesives is no longer necessary.
- Another advantage of the invention is that the proven conventional coatings of the container body with gold or white lacquers can be retained.
- Another advantage of the invention is that in the production of containers hulls no consideration to that used by the bottler Seaming * and opening system must be taken. This creates an inexpensive and inexpensive storage technology.
- Another advantage of the invention is that the bottler does not have to change anything on the existing packaging and sealing machines. ..- a following the invention is described in more detail with reference to illustrated embodiments. Show it:
- FIG. 1 shows a longitudinal section through a canned container made of paint-coated sheet metal
- FIG. 2 shows a longitudinal section through a further embodiment of a canned container made of sheet metal without paint coating.
- a fuselage 1 produced in a conventional manner has a coating 2 made of a white, clear or gold lacquer on the inside, which protects the fuselage 1 against corrosion and the filling material against changes as a result of chemical interactions with the container material.
- This coating was either applied to the unwelded or unsoldered, still flat sheet metal panels or injected into the already finished hulls.
- ⁇ c- A membrane 3 made of metal, e.g. Aluminum, or plastic, which has a coating 4 on the side facing the container body 1.
- the chemical composition of this coating 4 is matched to the nature of the surface of the fuselage 1.
- the membrane 3 can additionally be provided on the outside with a plastic coating 5 which increases the tear resistance, but it can also consist of several layers connected to one another.
- OMP A tear-open lapping 6, which can be part of the membrane 3, enables the container 1 to be opened easily without tools.
- the container body 1 in FIG. 2 is not coated on the inside.
- the direct storage in tinplate containers is advantageous.
- Other filling goods such as oils and varnishes do not need corrosion-protected containers anyway and are therefore often packed in TFS tin containers (Tin Free Steel).
- the membrane cover 3 constructed in the same way rests on the fold 7.
- the membrane 3 is protected in this way against damage when stacking the containers.
- the coating of the membrane 3 is preferably made of a thermoplastic, which is a carboxylic acid-modified polypropylene and / or an epoxy resin or
- the coating can also be made from a Jonomer resin (eg "Surlyn” from Du Pont) or a carboxylic acid-modified polyolefin resin or a polyvinyl chloride copolymer, preferably grafted polyolefins such as PEG (acrylic acid-grafted polyethylene), PPG (acrylic-acid-grafted polypropylene) or a biaxia oriented or non-oriented polypropylene film or a biaxially oriented or non-oriented polyamide film or a Jonomer resin film (eg "Surlyn” from Du Pont) or a carboxylic acid-modified polyolefin resin film or a polyvinyl chloride copolymer Film, preferably grafted polyolefins such as PEG, PPG exist.
- a Jonomer resin eg "Surlyn” from Du Pont
- a carboxylic acid-modified polyolefin resin or a polyvinyl chloride copolymer Film
- the membrane 3 is welded to the fuselage 1 in a conventional manner by connecting the membrane closure 3 to the container body 1 under the action of pressure and temperature, the coating 4 of the membrane 3 alone effecting the connection.
- the coating 5 on the outside of the membrane 3 can, for example, be a film made of a polyethylene terehalate or a biaxially oriented polyamide or a biaxially oriented polypropylene.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
Une membrane d'aluminium revêtue d'une couche (3) est soudée à un corps conventionnel de boîte par application de pression et de chaleur. La couche de revêtement sur la membrane joue le rôle d'adhésif. Le corps de boîte qui peut être, par exemple, en fer-blanc revêtu d'une couche de laque blanche ou dorée, ne nécessite aucune couche ou pré-traitement participant à l'opération de soudage du couvercle.An aluminum membrane coated with a layer (3) is welded to a conventional can body by applying pressure and heat. The coating layer on the membrane acts as an adhesive. The box body which can be, for example, tinplate coated with a layer of white or golden lacquer, does not require any layer or pre-treatment participating in the welding operation of the cover.
Description
Verfahren zur Herstellung eines Konservengebindes sowie ein Konservengebinde Process for producing a canned container and a canned container
Die vorliegende Erfindung betrifft ein Verfahren zur Her¬ stellung eines Konservengebindes mit einem aufgeschweisste Membranverschluss sowie ein Konservengebinde mit einem Rum aus Blech mit einem eingeschweissten Mem- branverschluss.The present invention relates to a method for producing a canned container with a welded-on membrane closure and a canned container with a rum made of sheet metal with a welded-in membrane closure.
Gebinde mit einem durch Anwendung von Druck und Temperatur durch einen Heisskleber miteinander verbundenen Rumpf und Deckel sind bekannt.Containers with a body and lid which are connected to one another by the application of pressure and temperature by means of a hot glue are known.
Für Halbkonserven werden üblicherweise der Rumpf und der Deckel aus Kunststoff hergestellt. Für heiss abgefüllte Kon serven, z.B. Konfitüren, kommen vorwiegend Gebinde aus be¬ schichtetem Aluminiumband zur Anwendung, bei welchen der De kel mit einem Heisskleber auf den beschichteten Rumpf aufge klebt wird. Aus der EP-Anmeldung Nr. 11 588 ist ein solches Verfahren zum Verschliessen von Glas- oder Keramikbehältern mit be-The hull and lid are usually made of plastic for semi-preserves. For hot filled preserves, e.g. Jams, mainly containers made of coated aluminum tape, are used, in which the crumb is glued to the coated hull with a hot glue. EP-Application No. 11 588 describes such a method for closing glass or ceramic containers with
/^CfRE schichteter Aluminiumfolie bekannt. Die Aluminiumfclie weist auf der dem Behälter zugekehrten Seite einen Auftrag aus unter Einwirkung von Wärme und Druck aufschmelzenden Kunst¬ stoff auf. Auf dem Behälterrand wird vor der Versiegelung der 5 Folie mit dem Behälterrand z.B. eine organische oder eine wasserhaltige organische Lösung eines Alkyltrialkoxysilans oder eines gemischten Alkylackoxychlorsilans, dessen Alkylgruppe einen Substituenden mit einer Aπrrnio-, Epoxy-, Vinyl-, Acryl- oder Methacrylgruppe trägt, aufgetragen und getrocknet. / ^ CfRE layered aluminum foil known. The aluminum film has on the side facing the container an application made of plastic which melts under the influence of heat and pressure. An organic or a water-containing organic solution of an alkyltrialkoxysilane or a mixed alkyllackoxychlorosilane, the alkyl group of which carries a substituent with an amino, epoxy, vinyl, acrylic or methacrylic group, is applied to the edge of the container before the film is sealed to the edge of the container and dried.
10 Die Verbindung oder Verklebung der beschichteten Aluminium¬ folie mit dem Behälter erfordert eine aufwendige und zeit¬ raubende Vorbehandlung des Behälterrandes, welche den Glas¬ behälter für preisgünstige Füllgüter unwirtschaftlich macht.10 The connection or adhesive bonding of the coated aluminum foil to the container requires a complex and time-consuming pretreatment of the container edge, which renders the glass container uneconomical for inexpensive filling goods.
Beim Auftragen der Haftlösungen auf den Behälterrand muss TC peinlich darauf geachtet werden, dass keine Verunreinigung desWhen applying the adhesive solutions to the edge of the container, TC must be careful not to contaminate the
Behälterinnerns eintritt, die das Füllgut verderben und beiInside the container, which spoil the contents and
Lebensmitteln, die Gesundheit gefährden kann. Eine Verwendung ■• .- von in solcher Weise verschlossenen Dosen für Konserven kommt daher kaum in Frage.Food that can endanger health. Therefore, use ■ • .- of sealed in such a way cans for canned hardly comes into question.
20 Für Vollkonserven, welche einem Kochprozess in Autoklaven unterworfen werden, sind diese Gebinde nicht geeignet.20 These containers are not suitable for canned goods that are subjected to a cooking process in autoclaves.
Aus der US-Patentschirft Nr. 4,253,584 ist ein Verschluss be- kannt geworden, bei welchem ein als Verschlussmembrane die¬ nendes Aluminiumband mit Polyamid und ein für die Aufnahme der Membrane vorgesehener Ring eine Beschichtung aus einer Schicht eines Organasols und einer Schicht eines Vinylcopolymers auf¬ weist. Durch Verschmelzen der beiden auf Thermoplastbasis auf¬ gebauten Beschichtungen der Membrane und des Ringes wird das Gebinde gasdicht verschwelest. Wie beim bekannten Glasbehäl¬ ter ist für den Ring eine Vorbereitung(Beschichtung) nötig.A closure has become known from US Pat. No. 4,253,584, in which an aluminum band serving as a closing membrane with polyamide and one for receiving the Membrane provided ring has a coating of a layer of an organasol and a layer of a vinyl copolymer. By melting the two thermoplastic-based coatings of the membrane and the ring, the container is made to be gas-tight. As with the known glass container, preparation (coating) is necessary for the ring.
Gebindeverschlüsse mit einem Deckelring zur Aufnahme der Mem¬ brane sind für Konserven, welche nach dem Oeffnen des Gebindes sofort verbraucht werden zu teuer in der Herstellung. Zudem kann das Füllgut nicht vollständig entnommen werden, weil durc den Ring ein Absatz entsteht, der den Gebindequerschnitt we¬ sentlich verringert.Container closures with a cover ring for holding the membrane are too expensive to manufacture for preserves which are consumed immediately after the container has been opened. In addition, the filling material cannot be removed completely because the ring creates a shoulder that significantly reduces the cross-section of the container.
Aus der EP- Anmeldung Nr.82101796 ist eine Konservendose be¬ kannt, bei welcher eine mit einem sterilisierfesten Thermo- plast beschichtete Aluminiummembrane direkt auf den Doserirurπpf aufgeschweisst wird. Um diese Schweissung zu ermöglichen, schreibt die Erfindung vor, dass die Innenseite des Gebinde¬ rumpfes ebenfalls mit. einem Thermoplastkunststoff beschichtet sein muss, damit beim Verschweissen der beiden Thermoplast- beschichtungen eine chemische Verbindung zustande kommen kann.From EP application No. 82101796 a can is known, in which an aluminum membrane coated with a sterilization-resistant thermoplastic is welded directly onto the metering bowl. In order to enable this welding, the invention stipulates that the inside of the container body is also included. must be coated with a thermoplastic so that a chemical bond can be created when the two thermoplastic coatings are welded together.
Die bekannten Versiegelungsverfahren von Gebinden setzen das Vorhandensein einer auf den Kleber oder die LackbeSchichtung des Deckels, bzw. der Deckelmembrane abgestimmten Beschichtung oder Vorbehandlung des Rumpfes oder eines Einsatzringes voraus.The known sealing methods for containers require the presence of a coating or pretreatment of the fuselage or an insert ring that is matched to the adhesive or the lacquer coating of the cover or the cover membrane.
Da Dosen ein Massenprodukt darstellen, ist es für den Dosen¬ hersteller unmöglich, Dosen mit Innenbeschichtungen zu ver¬ sehen, deren Spezifikation ihm der Verbraucher jeweils vor¬ schreiben müsste. Eine Lagerhaltung kann nur in Standard- ^^^ ausführung einigermassen wirtschaftlich verwortet werden.Since cans represent a mass product, it is impossible for the can manufacturer to provide cans with inner coatings, the specification of which the consumer would have to prescribe. Warehousing can only be done in standard ^ ^ ^ execution can be used economically.
Die heute standardmässig verwendeten, bewährten und geprüfte Weiss- und Goldlacke für die Beschichtung der Gebindeinnen¬ seite von sterilisierfähigen Dosen sind auf der Basis von Duroplastkunststoffen aufgebaut. Diese Beschichtungen erfüll die an sie gestellten Bedingungen hinsichtlich Geschmacks¬ neutralität gegenüber dem Füllgut, ausgezeichnete Hafteigen¬ schaften auf dem Untergrund und Korrisionsschutz desselben s wie einfache Applikationen und günstiger Preis. -The proven and tested white and gold lacquers used today as standard for coating the inside of the container of sterilizable cans are based on thermoset plastics. These coatings meet the conditions imposed on them with regard to taste neutrality with respect to the filling material, excellent adhesive properties on the substrate and protection against corrosion thereof, such as simple applications and a favorable price. -
Die Aufgabe der vorliegenden Erfindung besteht nun darin, einen Deckelverschluss in der Gestalt einer Aluminiummembran zu schaffen, welcher mit jedem standardmässig hergestellten, herkömmlichen Gebinderumpf unter Einwirkung von Druck und Temperatur direkt verbunden bzw. verschweisst werden kann.The object of the present invention is to create a lid closure in the form of an aluminum membrane, which can be directly connected or welded to any standard container hull under the influence of pressure and temperature.
Eine weitere Aufgabe besteht darin, den Membranverschluss de art zu beschichten, dass eine einwändfreie, sterilisations- feste Verbindung mit dem Rumpf entsteht.Another task is to coat the membrane seal de art so that a flawless, sterilization-proof connection with the fuselage is created.
Eine weitere Aufgabe besteht darin, die Beschichtung der Membrane derart auszubilden, dass eine sichere Verbindung derselben am ganzen Umfang des Gebinderumpfes gewährleistet ist.Another object is to design the coating of the membrane in such a way that a secure connection thereof is ensured over the entire circumference of the container body.
Erfindungsgemäss werden diese Aufgaben entsprechend den Kennzeichen der Patentansprüche 1 und 10 gelöst.According to the invention, these objects are achieved in accordance with the characteristics of claims 1 and 10.
'BUREA'BUREA
O PI Weitere vorteilhafte Ausführungsformen können den Mass- nahmen gemäss den Unteransprüchen 2 bis 9 und 11 bis 15 entnommen werden.O PI Further advantageous embodiments can be found in the measures according to subclaims 2 to 9 and 11 to 15.
Im Gegensatz zu der bisher notwendigen Anpassung der Beschich- tung des Gebinderumpfes, können nach der Erfindung in herkömm¬ licher Weise hergestellte, mit einem Schutzlack beschichtete oder blanke Weiss- oder TFS-Blechgebinderümpfe verwendet wer¬ den.In contrast to the previously necessary adaptation of the coating of the container body, according to the invention, conventionally produced, coated with a protective lacquer or bare white or TFS sheet metal container bodies can be used.
Ein weiterer Vorteil der Erfindung besteht darin, dass einzig die Beschichtung des Verschlusses, bzw. der Membrane, bzw. des dazu verwendeten Aluminiumbandes auf die Oberflächenbeschaffen¬ heit des Gebinderumpfes abstimmt werden muss. Das teure Be¬ schichten der Rümpfe oder Rumpfteile mit Spezialklebern fällt weg. Ein weiterer Vorteil der Erfindung besteht darin, dass die be¬ währten herkömmlichen Beschichtungen des Gebinderumpfes mit Gold- oder Weisslacken beibehalten werden können.A further advantage of the invention is that only the coating of the closure, or the membrane, or the aluminum strip used for this purpose has to be matched to the surface quality of the container body. The expensive coating of the hulls or fuselage parts with special adhesives is no longer necessary. Another advantage of the invention is that the proven conventional coatings of the container body with gold or white lacquers can be retained.
Ein weiterer Vorteil der Erfindung besteht darin, dass bei der Herstellung der Gebinderümpfe keine Rücksicht auf das vom Abfüller verwendete Verschliess-*und Oeffnungssystem genommen werden muss. Eine kostengünstige und lagertechnisch günstige Fertigung wird damit geschaffen.Another advantage of the invention is that in the production of containers hulls no consideration to that used by the bottler Seaming * and opening system must be taken. This creates an inexpensive and inexpensive storage technology.
Ein weiterer Vorteil der Erfindung besteht darin, dass beim Abfüller an den bestehenden Abpack- und Verschliessmaschinen nichts geändert werden muss. ..-a folgenden wird anhand illustrierter Ausführungsbeispiele die Erfindung näher beschrieben. Es zeigen:Another advantage of the invention is that the bottler does not have to change anything on the existing packaging and sealing machines. ..- a following the invention is described in more detail with reference to illustrated embodiments. Show it:
Figur 1 einen Längsschnitt durch ein Konservengebinde aus lackbeschichtetem Blech, Figur 2 einen Längsschnitt durch eine weitere Ausführungs¬ form eines Konservengebindes aus Blech ohne Lackbe- schichtung.1 shows a longitudinal section through a canned container made of paint-coated sheet metal, FIG. 2 shows a longitudinal section through a further embodiment of a canned container made of sheet metal without paint coating.
Ein in herkömmlicher Weise hergestellter Rumpf 1 weist innen eine Beschichtung 2 aus einem Weiss-, Klar oder Goldlack auf, welche den Rumpf 1 vor Korrosion und das Füllgut vor Veränderungen in¬ folge von chemischen Wechselwirkungen mit dem Gebindematerial schützt. Diese Beschichtung ist entweder auf die ungeschweiss- ten oder ungelöteten, noch flachen Blechpiattinen aufgetragen worden oder in die bereits fertigen Rümpfe eingespritzt worden.A fuselage 1 produced in a conventional manner has a coating 2 made of a white, clear or gold lacquer on the inside, which protects the fuselage 1 against corrosion and the filling material against changes as a result of chemical interactions with the container material. This coating was either applied to the unwelded or unsoldered, still flat sheet metal panels or injected into the already finished hulls.
<c- Auf einem durch Bördeln des R mpfendes erzeugten Flansch 8 liegt eine Membrane 3 aus Metall, z.B. Aluminium, oder aus Kunststoff, welche auf der dem Gebinderumpf 1 zugewendeten Seite eine Beschichtung 4 aufweist. Diese Beschichtung 4 ist in ihrer chemischen Zusammensetzung auf die Beschaffenheit der o Oberfläche des Rumpfes 1 abgestimmt.<c- A membrane 3 made of metal, e.g. Aluminum, or plastic, which has a coating 4 on the side facing the container body 1. The chemical composition of this coating 4 is matched to the nature of the surface of the fuselage 1.
Zur Verstärkung gegen mechanische Einflüsse kann die Membrane 3 aussen zudem mit einer die Reissfestigkeit erhöhenden Kunst¬ stoffbeschichtung 5 versehen sein, sie kann aber auch aus mehreren miteinander verbundenen Schichten bestehen.To reinforce mechanical influences, the membrane 3 can additionally be provided on the outside with a plastic coating 5 which increases the tear resistance, but it can also consist of several layers connected to one another.
OMP Ein Aufreissläppen 6, der Teil der Membrane 3 sein kann, ermög¬ licht ein werkzeugfreies, leichtes Oeffnen des Gebindes 1.OMP A tear-open lapping 6, which can be part of the membrane 3, enables the container 1 to be opened easily without tools.
Der Gebinderumpf 1 in Figur 2 ist innen nicht beschichtet. Für gewisse Füllgüter, z.B. Ananas, ist die direkte Lagerung in Weissblechgebinden vorteilhaft. Andere Füllgüter wie Oele und Lacke benötigen ohnehin keine korrisionsgeschützten Gebinde und werden daher häufig in TFS-Blechgebinden (Tin Free Steel) verpack .The container body 1 in FIG. 2 is not coated on the inside. For certain filling goods, e.g. Pineapple, the direct storage in tinplate containers is advantageous. Other filling goods such as oils and varnishes do not need corrosion-protected containers anyway and are therefore often packed in TFS tin containers (Tin Free Steel).
Der in gleicher Weise aufgebaute Membrandeckel 3 liegt in die- ser Ausführungsform auf der Falzung 7 auf. Die Membrane 3 wird auf diese Weise gegen Beschädigung beim Stapeln der Gebinde geschützt.In this embodiment, the membrane cover 3 constructed in the same way rests on the fold 7. The membrane 3 is protected in this way against damage when stacking the containers.
Die Beschichtung der Membrane 3 besteht vorzugsweise aus einem thermoplastischen Kunststoff, welcher ein carboxylsäuremodi- fiziertes Polypropylen und/oder ein Epoxyharz oder einThe coating of the membrane 3 is preferably made of a thermoplastic, which is a carboxylic acid-modified polypropylene and / or an epoxy resin or
Polyesterharz oder ein Polyurethan oder ein Polyamid enthält. Die Beschichtung kann aber auch aus einem Jonomer Harz (z.B. "Surlyn" von Du Pont) oder einem carbonoxylsäuremodifizierten Polyolefin Harz oder einem Polyvinylchloridcoplymer, vorzugs- weise gepfropfte Polyolefine wie z.B. PEG (acrylsäuregepfopf- tes Polyätylen) , PPG ( acrylsäuregepfropftes Polypropylen) oder einem biaxial orientierten oder nichtorientierten Poly¬ propylenfilm oder einem biaxial orientierten oder nicht orientierten Polyamidfilm oder einem Jonomer Harz Film (z.B. "Surlyn" von Du Pont) oder einem carboxylsäuremodifizierten Polyolefin Harz Film oder einem Polyvinylchloridcopolymer Film, vorzugsweise gepfropfte Polyolefine wie z.B. PEG, PPG bestehen.Contains polyester resin or a polyurethane or a polyamide. However, the coating can also be made from a Jonomer resin (eg "Surlyn" from Du Pont) or a carboxylic acid-modified polyolefin resin or a polyvinyl chloride copolymer, preferably grafted polyolefins such as PEG (acrylic acid-grafted polyethylene), PPG (acrylic-acid-grafted polypropylene) or a biaxia oriented or non-oriented polypropylene film or a biaxially oriented or non-oriented polyamide film or a Jonomer resin film (eg "Surlyn" from Du Pont) or a carboxylic acid-modified polyolefin resin film or a polyvinyl chloride copolymer Film, preferably grafted polyolefins such as PEG, PPG exist.
Die Verschweissung der Membrane 3 mit dem Rumpf 1 erfolgt in herkömmlicher Weise.dadurch, dass der Membranverschluss 3 unter Einwirkung von Druck und Temperatur mit dem Gebinde¬ rumpf 1 verbunden wird, wobei die die Beschichtung 4 der Membrane 3 allein die Verbindung bewirkt.The membrane 3 is welded to the fuselage 1 in a conventional manner by connecting the membrane closure 3 to the container body 1 under the action of pressure and temperature, the coating 4 of the membrane 3 alone effecting the connection.
Die Beschichtung 5 der Aussenseite der Membrane 3 kann bei¬ spielsweise ein Film aus einem Polyethylenterethalat oder einem biaxial orientierten Polyamid oder einem biaxial orien¬ tierten Polypropylen sein. The coating 5 on the outside of the membrane 3 can, for example, be a film made of a polyethylene terehalate or a biaxially oriented polyamide or a biaxially oriented polypropylene.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU13724/83A AU1372483A (en) | 1982-04-06 | 1983-03-31 | Verfahren zur herstellungeines konservengebindes sowie ein konservengebinde |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH211282 | 1982-04-06 | ||
| CH2112/82 | 1982-04-06 | ||
| CH1138/83830302 | 1983-03-02 | ||
| CH113883A CH659986A5 (en) | 1983-03-02 | 1983-03-02 | Process for producing a preserve can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1983003589A1 true WO1983003589A1 (en) | 1983-10-27 |
Family
ID=25686763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH1983/000041 Ceased WO1983003589A1 (en) | 1982-04-06 | 1983-03-31 | Method for sealing a closure on a can |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0105286A1 (en) |
| WO (1) | WO1983003589A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH342491A (en) * | 1957-11-22 | 1959-11-15 | Prestige Group Ltd | Container |
| GB912839A (en) * | 1958-05-16 | 1962-12-12 | Star Aluminium Company Ltd | Improvements in or relating to hermetically sealed packings |
| FR1440112A (en) * | 1965-04-15 | 1966-05-27 | Duralumin | Tight sealing method of a container ensuring ease of opening |
| CH435095A (en) * | 1966-04-07 | 1967-04-30 | Alusuisse | Method for closing sterilizable containers |
| DE2318670A1 (en) * | 1973-04-13 | 1974-11-07 | Aluminium Walzwerke Singen | CONTAINER WITH AN EASILY REMOVABLE LATCH THAT SEALS THE CONTAINER |
| FR2427956A1 (en) * | 1978-06-08 | 1980-01-04 | Vmw Ranshofen Berndorf Ag | PACKAGING FOR CARBONATED AND NON-CARBONATED BEVERAGES |
-
1983
- 1983-03-31 WO PCT/CH1983/000041 patent/WO1983003589A1/en not_active Ceased
- 1983-03-31 EP EP83900899A patent/EP0105286A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH342491A (en) * | 1957-11-22 | 1959-11-15 | Prestige Group Ltd | Container |
| GB912839A (en) * | 1958-05-16 | 1962-12-12 | Star Aluminium Company Ltd | Improvements in or relating to hermetically sealed packings |
| FR1440112A (en) * | 1965-04-15 | 1966-05-27 | Duralumin | Tight sealing method of a container ensuring ease of opening |
| CH435095A (en) * | 1966-04-07 | 1967-04-30 | Alusuisse | Method for closing sterilizable containers |
| DE2318670A1 (en) * | 1973-04-13 | 1974-11-07 | Aluminium Walzwerke Singen | CONTAINER WITH AN EASILY REMOVABLE LATCH THAT SEALS THE CONTAINER |
| FR2427956A1 (en) * | 1978-06-08 | 1980-01-04 | Vmw Ranshofen Berndorf Ag | PACKAGING FOR CARBONATED AND NON-CARBONATED BEVERAGES |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0105286A1 (en) | 1984-04-18 |
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| AK | Designated states |
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Designated state(s): AT BE CH DE FR GB LU NL SE |