EP1882637A1 - Packing container - Google Patents

Packing container Download PDF

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Publication number
EP1882637A1
EP1882637A1 EP07013744A EP07013744A EP1882637A1 EP 1882637 A1 EP1882637 A1 EP 1882637A1 EP 07013744 A EP07013744 A EP 07013744A EP 07013744 A EP07013744 A EP 07013744A EP 1882637 A1 EP1882637 A1 EP 1882637A1
Authority
EP
European Patent Office
Prior art keywords
shell
welded
lid
edge
casing
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
EP07013744A
Other languages
German (de)
French (fr)
Other versions
EP1882637B1 (en
Inventor
Willi Krieger
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.)
OPTIMA-MASCHINENFABRIK DR. BUEHLER GMBH & CO. KG
Original Assignee
Q-Bag Packaging Machinery & Co KG GmbH
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 Q-Bag Packaging Machinery & Co KG GmbH filed Critical Q-Bag Packaging Machinery & Co KG GmbH
Publication of EP1882637A1 publication Critical patent/EP1882637A1/en
Application granted granted Critical
Publication of EP1882637B1 publication Critical patent/EP1882637B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • B65D3/04—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially cylindrical
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
    • B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container mouth
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546—NO contact

Definitions

  • the invention relates to a serving as a packaging container for food and beverage can.
  • Packaging containers of this type have a multiple task. On the one hand, they should, of course, protect foods or stimulants against external influences, so that they retain their properties unchanged over a longer period of time. This includes that the packaging containers are airtight. On the other hand, they should offer the possibility that a user can see that the container has not yet been opened. In addition, they should of course also allow transporting, that is, they must have a certain stability. Nevertheless, they should have the lowest possible weight, since during transport, not only the weight of the content counts, but also the weight of the packaging.
  • the invention is based on the object to provide a packaging container that meets all these requirements.
  • the invention proposes a packaging container in the form of a box with the features of claim 1. Further developments of the invention are the subject of dependent claims.
  • the box thus contains a cylindrical, in particular circular cylindrical shell made of a polypropylene, which is preferably provided with an oxygen protection.
  • the floor may in particular consist of the same material and be welded to the shell.
  • the lid which is also welded to the casing, will not be used until the can has been filled.
  • the use of a plastic material with oxygen protection means that no air, especially no oxygen, can get inside.
  • Oxygen is the substance that causes food or luxury foods to age.
  • the cylindrical shape means that the can at any point kinks that could represent a weakening.
  • the uniform curvature of the wall of the can means that there is great stability of the can.
  • the can stand on the end edge of the cylindrical sleeve, and it is clearly resilient in the axial direction of the shell.
  • a ring made of polypropylene is welded, which forms a solindharilindharide inner lateral surface on which the lid rests with an edge surface and with which the lid is welded. It is thus formed a separate contact surface for the lid, so that a defined point is present at which the lid is welded.
  • the lid at least on its edge surface, that is with the surface with which it is welded to the shell and / or the inner ring, Peeleigenschaften.
  • This may be a special treatment of the material of the lid or a coating.
  • a peel layer is understood as meaning a plastic layer whose temperature resistance or its melting point is lower than that of the pure plastic material. This can be achieved by additives.
  • the peel layer on the one hand enables a liquid-tight and airtight sealing of the lid edge, but on the other hand enables peeling without damaging the peel layer.
  • the bottom has a flat-cylindrical surface, with which it is welded to the shell.
  • This lateral surface means that a larger surface is available for the welding.
  • the attachment of the floor is done such that the bottom of the lower end edge of the cylindrical shell has a certain distance.
  • the free edge of the bent-over lateral surface of the floor can run flush with the free end edge of the shell.
  • the distance of the circular bottom of the front edge of the shell has the advantage that at an increase in pressure inside the can initially a buckling of the soil outwards, which does not affect the stability of the can, as long as the ground no further than up to the level the stand surface is dented.
  • the can has a pressure relief valve.
  • pressure relief valves are known per se in packaging.
  • the valve speaks at an overpressure of 3 to 5 mbar.
  • the invention proposes to use a pressure relief valve, which responds, for example, only at about 60 to 80 mbar. This makes it possible that even with an overpressure that would lead to a greater bulging of the soil, the stability and stability of the can does not suffer.
  • this pressure relief valve is arranged in the bottom of the can. There it is not visible when the can is on the bottom.
  • the can is preferably made from a sheet blank and thus has a longitudinal seam. This seam may be the welding of the superimposed edges of the blank used for the sleeve.
  • the invention also proposes a method of manufacturing a packaging container in the form of a can for packaging food and luxury foods.
  • a film is provided as an endless belt, which is then removed from the roll.
  • the film is divided into sections. Each section is curved about the longitudinal direction of the belt, for example, placed around a mandrel.
  • the slightly overlapping edges of the blank are welded together.
  • a bottom is punched out of the same material and inserted into the one end of the envelope produced from the blank of the film and sealed.
  • To filling a lid is inserted into the other end of the shell and welded.
  • the bottom is welded at a distance from the associated end edge of the shell.
  • an overpressure valve is inserted into the bottom prior to its insertion into the casing.
  • a ring is welded, which rests against the inside of the shell and on the inner circumferential surface of the lid is brought to rest before it is welded.
  • the ring and the lid are first connected to each other or assembled and welded as a unit with the shell.
  • the can includes a cylindrical shell 1 made from a single blank. The edges of this initially flat blank are welded together and form a longitudinal seam 2.
  • the shell is constructed circular cylindrical and has an upper end edge 3 and an end edge 4 formed at the opposite end.
  • the upper end edge 3 is associated with a cover 5, while the lower end edge 4 is assigned a bottom 6.
  • the bottom 6 is formed as a flat element with a flat away from the can wall portion 7. It is inserted from the bottom into the can until the free edge 8 of the edge portion 7 is flush with the end edge 4 of the shell 1. Then takes place along the edge 7 a Ultraschallversch spaung between the bottom and the shell 1. This is given at this point an airtight connection.
  • a ring 9 is arranged, which is welded with its outer side to the inside of the shell 1 and slightly protrudes into the shell 1 into it.
  • the ring 9 forms an inner side 10, at which the outer edge 11 of the lid 5 comes to rest and to which it is welded.
  • This outer edge 11 of the lid 5 has Peeleigenschaften, that is, he can be easily detached there.
  • FIG. 2 shows the details just described in their mutual association.
  • the shell 1 is shown broken off.
  • the ring 9 is used, which has an outer surface 12 and an inner surface 13. With the outer surface 12, it is connected to the inside of the shell 1. It has on its outer surface 12 a flange 14 which forms a contact surface 15. As a result, the correct position of the ring 9 relative to the shell 1 is defined.
  • the lid 5 has at its end an outwardly projecting flange 16 on which, for example, a grip tab 17 may be formed. At this flange 16 'is followed by a cylindrical part, which is then followed by an outwardly directed bead 18.
  • the lid 5 is first inserted into the ring 9 and then inserted as a unit in the slightly expanded casing 1, and then ultrasonically welded with this.
  • the lid is welded on only when the can is filled with the stimulant or the food.
  • FIG. 3 shows the top view of a pressure relief valve, as it can be mounted according to the invention in the bottom 6 of the can.
  • This pressure relief valve contains two interconnected layers of plastic, wherein in the container-facing layer 23, a defined opening 20 is present. Over this lower layer 23, an upper layer 24 is laid, which is bonded by means of two adhesive layers with the lower plastic layer 23. The two adhesive layers extend from the edge towards the hole 20, but leave a gap between them. The mutually facing edges 22 of the adhesive layer form a continuous from one edge 25 of the pressure relief valve to the other edge 25 channel in which the opening 20 opens. Between the two layers 23, 24, a drop of silicone oil is applied in this channel 21. The two layers are thus supported by the silicone oil also within the channel 25 to each other.
  • FIG. 5 shows in a very simplified manner how to produce the container from a film in the form of an endless belt.
  • the film 30 is unwound from a film roll 31.
  • the film roll has a width corresponding to the circumference of the can.
  • the film may have on its later inner side individual markings 32, which indicate at which points the film is to be cut.
  • the film is then rolled up so that the earlier side edges of the endless belt 30 slightly overlap one another.
  • the shell 1 is formed. The laying around and welding can be done on a mandrel, which holds the shell even when the bottom 6 is inserted into one end.
  • the procedure is as follows.
  • the film 30 is pre-wound from the film roll 31 into a registration loop. From there, the required section length is drawn off via vacuum suction belts, which are driven by servomotors. This is controlled by the markers 32 which are mounted on the foil.
  • the film is transported to a folding table and cut there.
  • the trimmed rectangular blank is folded around a round folding mandrel.
  • the film is held on the mandrel with suction air.
  • the two edges overlap and form an overlap seam.
  • the sealing pad is a sealing strip made of steel and PTFE. There are holes in the mandrel surface that can be used to blow off the foil from the sealing strip.
  • the sealing strip is required because the film must be sealable inside.
  • the film is pulled down around the bottom area of the mandrel.
  • the floor area is slightly widened, for example, to a slope of 15 °.
  • the bottom member 6 is used.
  • This component is also processed by a film roll.
  • the film is pulled off from the film roll by means of a servomotor with rollers.
  • a punch connected to a thermoforming tool cuts out the bottom member and deforms the rim as shown.
  • this component is placed in front of the sealing tool. This tool takes over the soil component using vacuum and adds it in the shell 1 at the same time a seal. This sealing can be done thermally or with ultrasound.
  • the ready-to-fill box is removed from the mandrel, for example by assisted with blowing air mechanical peeling.
  • the can is then rotated 90 ° so that the opening faces up, and is inserted into an intermittent wheel. On this wheel, the contents are introduced and the can closed.
  • the filling can be done for example with coffee pads or ground coffee.
  • cassettes are mounted in groups on a chain.
  • the chains can move individually.
  • the pads are evacuated and refilled with nitrogen, which means the air is removed from the stack.
  • the stack of pads is driven over the nozzle of the foil dosing machine and pushed there into the can.
  • a nozzle is helpful, which is designed for the diameter of the coffee pods.
  • the can can be pre-pressurized with liquid nitrogen, which evaporates after about 4 seconds and thus produces a controlled overpressure in the film box.
  • the can is now transported to the lid loading station, in which the lid is inserted into the can.
  • This may be a ring with lid attached, see above, or just a foil that is pushed into the can. Thereafter, the ring is sealed to the jacket.
  • the overpressure building up in the can, resulting from gas emanating from the coffee, can, as soon as it exceeds the mentioned value, be discharged through the pressure relief valve.

Abstract

The container has a cylindrical wrapping (1) made of a sealable material, particularly polypropylene. A base (6) is welded in end of the wrapping. A cover (5) is shrink-wrapped in the end of the wrapping that is turned away from base. A ring (9) made of polypropylene is welded to the end of the wrapping that assigned to the cover. The ring forms an inner shell, at which the cover lies close to an edge surface (11). An independent claim is also included for a method for manufacturing of the container.

Description

Die Erfindung betrifft eine als Verpackungsbehälter für Lebens- und Genussmittel dienende Dose.The invention relates to a serving as a packaging container for food and beverage can.

Verpackungsbehälter dieser Art haben eine mehrfache Aufgabe. Sie sollen zum einen natürlich die Lebensmittel oder Genussmittel so gegen äußere Einflüsse schützen, dass diese ihre Eigenschaften auch über einen längeren Zeitraum unverändert beibehalten. Hierzu gehört, dass die Verpackungsbehälter luftdicht sind. Zum anderen sollen sie die Möglichkeit bieten, dass ein Benutzer sehen kann, dass der Behälter noch nicht geöffnet wurde. Darüberhinaus sollen sie natürlich auch das Transportieren ermöglichen, das heißt sie müssen eine gewisse Stabilität aufweisen. Trotzdem sollen sie ein möglichst geringes Gewicht aufweisen, da beim Transport natürlich nicht nur das Gewicht des Inhalts zählt, sondern auch das Gewicht der Verpackung.Packaging containers of this type have a multiple task. On the one hand, they should, of course, protect foods or stimulants against external influences, so that they retain their properties unchanged over a longer period of time. This includes that the packaging containers are airtight. On the other hand, they should offer the possibility that a user can see that the container has not yet been opened. In addition, they should of course also allow transporting, that is, they must have a certain stability. Nevertheless, they should have the lowest possible weight, since during transport, not only the weight of the content counts, but also the weight of the packaging.

Der Erfindung liegt die Aufgabe zu Grunde, einen Verpackungsbehälter schaffen, der allen diesen Forderungen gerecht wird.The invention is based on the object to provide a packaging container that meets all these requirements.

Zur Lösung dieser Aufgabe schlägt die Erfindung einen Verpackungsbehälter in Form einer Dose mit den Merkmalen des Anspruchs 1 vor. Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.To solve this problem, the invention proposes a packaging container in the form of a box with the features of claim 1. Further developments of the invention are the subject of dependent claims.

Die Dose enthält also eine zylindrische, insbesondere kreiszylindrische Hülle aus einem Polypropylen, das vorzugsweise mit einem Sauerstoffschutz versehen ist. Der Boden kann insbesondere aus dem gleichen Material bestehen und mit der Hülle verschweißt sein. Der Deckel, der ebenfalls mit der Hülle verschweißt ist, wird natürlich erst eingesetzt, wenn die Dose befüllt ist. Die Verwendung eines Kunststoffmaterials mit Sauerstoffschutz bedeutet, dass keine Luft, insbesondere kein Sauerstoff, in das Innere gelangen kann. Sauerstoff ist derjenige Stoff, der Lebensmittel oder Genussmittel altern lässt.The box thus contains a cylindrical, in particular circular cylindrical shell made of a polypropylene, which is preferably provided with an oxygen protection. The floor may in particular consist of the same material and be welded to the shell. Of course, the lid, which is also welded to the casing, will not be used until the can has been filled. The use of a plastic material with oxygen protection means that no air, especially no oxygen, can get inside. Oxygen is the substance that causes food or luxury foods to age.

Die Zylinderform bedeutet, dass die Dose an keiner Stelle Knicke aufweist, die eine Schwächung darstellen könnten. Die gleichmäßige Krümmung der Wand der Dose bedeutet, dass eine große Stabilität der Dose gegeben ist. Die Dose kann auf dem Stirnrand der zylindrischen Hülse stehen, und sie ist in Axialrichtung der Hülle deutlich belastbar.The cylindrical shape means that the can at any point kinks that could represent a weakening. The uniform curvature of the wall of the can means that there is great stability of the can. The can can stand on the end edge of the cylindrical sleeve, and it is clearly resilient in the axial direction of the shell.

In Weiterbildung der Erfindung kann vorgesehen sein, dass in das dem Deckel zugeordnete Ende der Hülle ein Ring aus Polypropylen eingeschweißt ist, der eine kurzzylindrische innere Mantelfläche bildet, an der der Deckel mit einer Randfläche anliegt und mit der der Deckel verschweißt ist. Es wird also eine eigene Anlagefläche für den Deckel gebildet, so dass eine definierte Stelle vorhanden ist, an der der Deckel angeschweißt wird.In a further development of the invention can be provided that in the cover associated with the end of the shell, a ring made of polypropylene is welded, which forms a kurzzylindrische inner lateral surface on which the lid rests with an edge surface and with which the lid is welded. It is thus formed a separate contact surface for the lid, so that a defined point is present at which the lid is welded.

In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass der Deckel mindestens an seiner Randfläche, das heißt mit der Fläche, mit dem er mit der Hülle und/oder dem Innenring verschweißt ist, Peeleigenschaften aufweist. Dabei kann es sich um eine spezielle Behandlung des Materials des Deckels oder eine Beschichtung handeln. Unter einer Peelschicht versteht man eine Kunststoffschicht, deren Temperaturbeständigkeit beziehungsweise deren Schmelzpunkt niedriger liegt als der des reinen Kunststoffmaterials. Dies kann durch Zusätze erreicht werden. Die Peelschicht ermöglicht einerseits einen flüssigkeitsdichtes und luftdichtes Versiegeln des Deckelrands, ermöglicht andererseits aber einen Ablösen ohne eine Beschädigung der Peelschicht.In a further development of the invention can be provided that the lid at least on its edge surface, that is with the surface with which it is welded to the shell and / or the inner ring, Peeleigenschaften. This may be a special treatment of the material of the lid or a coating. A peel layer is understood as meaning a plastic layer whose temperature resistance or its melting point is lower than that of the pure plastic material. This can be achieved by additives. The peel layer on the one hand enables a liquid-tight and airtight sealing of the lid edge, but on the other hand enables peeling without damaging the peel layer.

Auf diese Weise wird es möglich, den Deckel vom Benutzer leicht abnehmen zu lassen.In this way it is possible to easily remove the lid by the user.

In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass der Boden eine flachzylindrische Mantelfläche aufweist, mit der er mit der Hülle verschweißt ist. Diese Mantelfläche führt dazu, dass eine größere Fläche für die Verschweißung zur Verfügung steht. Insbesondere kann vorgesehen sein, dass die Anbringung des Bodens derart geschieht, dass der Boden von der unteren Stirnkante der zylindrischen Hülle einen gewissen Abstand aufweist. Beispielsweise kann der freie Rand der umgebogenen Mantelfläche des Bodens bündig mit der freien Stirnkante der Hülle verlaufen.In a further development of the invention can be provided that the bottom has a flat-cylindrical surface, with which it is welded to the shell. This lateral surface means that a larger surface is available for the welding. In particular, it may be provided that the attachment of the floor is done such that the bottom of the lower end edge of the cylindrical shell has a certain distance. For example, the free edge of the bent-over lateral surface of the floor can run flush with the free end edge of the shell.

Der Abstand des kreisrunden Bodens von der Stirnkante der Hülle hat den Vorteil, dass bei einer Druckerhöhung im Inneren der Dose zunächst eine Ausbeulung des Bodens nach außen erfolgt, was die Standfestigkeit der Dose noch nicht beeinträchtigt, solange der Boden nicht weiter als bis zu der Ebene der Standfläche ausgebeult wird.The distance of the circular bottom of the front edge of the shell has the advantage that at an increase in pressure inside the can initially a buckling of the soil outwards, which does not affect the stability of the can, as long as the ground no further than up to the level the stand surface is dented.

In nochmaliger Weiterbildung der Erfindung kann vorgesehen sein, dass die Dose ein Überdruckventil aufweist. Solche Überdruckventile sind bei Verpackungen an sich bekannt. Bei den bekannten Überdruckventilen spricht das Ventil bei einem Überdruck von 3 bis 5 mbar. Die Erfindung schlägt jedoch vor, ein Überdruckventil zu verwenden, das beispielsweise erst bei etwa 60 bis 80 mbar anspricht. Dadurch wird es möglich, dass auch bei einem Überdruck, der zu einer größeren Ausbeulung des Bodens führen würde, die Standfestigkeit und Stabilität der Dose nicht leidet.In a further development of the invention can be provided that the can has a pressure relief valve. Such pressure relief valves are known per se in packaging. In the known pressure relief valves, the valve speaks at an overpressure of 3 to 5 mbar. However, the invention proposes to use a pressure relief valve, which responds, for example, only at about 60 to 80 mbar. This makes it possible that even with an overpressure that would lead to a greater bulging of the soil, the stability and stability of the can does not suffer.

Um weder den optischen Eindruck zu beeinträchtigen noch die Möglichkeit von Beschädigungen entstehen zu lassen, kann erfindungsgemäß in Weiterbildung vorgesehen sein, dass dieses Überdruckventil im Boden der Dose angeordnet wird. Dort ist es nicht sichtbar, wenn die Dose auf dem unteren Rand steht.In order neither to impair the visual impression nor to give rise to the possibility of damage, according to the invention can be provided in a further development that this pressure relief valve is arranged in the bottom of the can. There it is not visible when the can is on the bottom.

Die Dose wird vorzugsweise aus einem flächigen Zuschnitt hergestellt und weist auf diese Weise eine in Längsrichtung verlaufende Naht auf. Bei dieser Naht kann es sich um die Verschweißung der übereinander gelegten Ränder des für die Hülle verwendeten Zuschnitts handeln.The can is preferably made from a sheet blank and thus has a longitudinal seam. This seam may be the welding of the superimposed edges of the blank used for the sleeve.

Die Erfindung schlägt ebenfalls ein Verfahren zum Herstellen eines Verpackungsbehälters in Form einer Dose zum Abpacken von Lebensmitteln und Genussmitteln vor. Nach diesem Verfahren wird eine Folie als Endlosband zur Verfügung gestellt, dass dann von der Rolle abgezogen wird. Die Folie wird in einzelne Abschnitte zertrennt. Jeder Abschnitt wird um die Längsrichtung des Bandes gekrümmt, beispielsweise um einen Dorn herum gelegt. Die etwas überlappenden Ränder des Zuschnitts werden miteinander verschweißt. Ein Boden wird aus dem gleichen Material ausgestanzt und in das eine Ende der aus dem Zuschnitt der Folie hergestellten Hülle eingeschoben und eingeschweißt. Nach dem Befüllen wird ein Deckel in das andere Ende der Hülle eingesteckt und eingeschweißt.The invention also proposes a method of manufacturing a packaging container in the form of a can for packaging food and luxury foods. According to this method, a film is provided as an endless belt, which is then removed from the roll. The film is divided into sections. Each section is curved about the longitudinal direction of the belt, for example, placed around a mandrel. The slightly overlapping edges of the blank are welded together. A bottom is punched out of the same material and inserted into the one end of the envelope produced from the blank of the film and sealed. To filling a lid is inserted into the other end of the shell and welded.

In Weiterbildung der Erfindung kann vorgesehen sein, dass der Boden mit Abstand von der zugeordneten Stirnkante der Hülle eingeschweißt wird.In a further development of the invention can be provided that the bottom is welded at a distance from the associated end edge of the shell.

Um ein zu starkes Ausbeulen des Verpackungsbehälters bei Erhöhung des Drucks im Inneren zu verhindern, kann erfindungsgemäß vorgesehen sein, dass in den Boden vor seinem Einsetzen in die Hülle ein Überdruckventil eingesetzt wird.In order to prevent excessive bulging of the packaging container upon increasing the pressure in the interior, it can be provided according to the invention that an overpressure valve is inserted into the bottom prior to its insertion into the casing.

In Weiterbildung kann vorgesehen sein, dass in das Deckelende ein Ring eingeschweißt wird, der an der Innenseite der Hülle anliegt und an dessen innerer Mantelfläche der Deckel zum Anliegen gebracht wird, bevor er verschweißt wird.In a further development can be provided that in the lid end, a ring is welded, which rests against the inside of the shell and on the inner circumferential surface of the lid is brought to rest before it is welded.

Insbesondere kann vorgesehen sein, dass der Ring und der Deckel zunächst miteinander verbunden oder zusammengestellt werden und als Einheit mit der Hülle verschweißt werden.In particular, it can be provided that the ring and the lid are first connected to each other or assembled and welded as a unit with the shell.

Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus den Ansprüchen und der Zusammenfassung, deren beider Wortlaut durch Bezugnahme zum Inhalt der Beschreibung gemacht wird, der folgenden Beschreibung bevorzugter Ausführungsformen der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

Figur 1
die perspektivische Darstellung der Einzelteile einer Dose nach der Erfindung;
Figur 2
in vergrößertem Maßstab einen Teilschnitt durch die einzelnen Teile der Dose;
Figur 3
eine Darstellung eines Überdruckventils, wie es bei der Dose zur Anwendung kommt;
Figur 4
einen Teilschnitt durch das Überdruckventil der Figur 3 und
Figur 5
schematisch die Stadien der Herstellung einer Dose nach der Erfindung.
Further features, details and advantages of the invention will become apparent from the claims and the abstract, the wording of which is incorporated by reference into the content of the description, the following description of preferred embodiments of the invention and with reference to the drawing. Hereby show:
FIG. 1
the perspective view of the items of a can according to the invention;
FIG. 2
on a larger scale, a partial section through the individual parts of the can;
FIG. 3
a representation of a pressure relief valve, as it comes with the can used;
FIG. 4
a partial section through the pressure relief valve of Figure 3 and
FIG. 5
schematically the stages of manufacturing a can according to the invention.

Zunächst zu Figur 1, die eine perspektivische auseinander gezogene Darstellung der als Verpackungsbehälter dienenden Dose zeigt. Die Dose enthält eine zylindrische Hülle 1, die aus einem einzigen Zuschnitt hergestellt ist. Die Ränder dieses zunächst flachen Zuschnitts werden miteinander verschweißt und bilden eine Längsnaht 2. Die Hülle ist kreiszylindrisch aufgebaut und weist eine obere Stirnkante 3 und eine am entgegengesetzten Ende ausgebildete Stirnkante 4 auf. Der oberen Stirnkante 3 ist ein Deckel 5 zugeordnet, während der unteren Stirnkante 4 ein Boden 6 zugeordnet ist. Der Boden 6 ist als ebenes Element mit einem flachen von der Dose weg gewandten Wandabschnitt 7 ausgebildet. Er wird von der Unterseite her in die Dose eingeschoben, bis der freie Rand 8 des Randabschnitts 7 bündig mit der Stirnkante 4 der Hülle 1 verläuft. Dann erfolgt längs des Randes 7 eine Ultraschallverschweißung zwischen dem Boden und der Hülle 1. Dadurch ist an dieser Stelle eine luftdichte Verbindung gegeben.First to Figure 1, which shows a perspective exploded view of serving as a packaging container can. The can includes a cylindrical shell 1 made from a single blank. The edges of this initially flat blank are welded together and form a longitudinal seam 2. The shell is constructed circular cylindrical and has an upper end edge 3 and an end edge 4 formed at the opposite end. The upper end edge 3 is associated with a cover 5, while the lower end edge 4 is assigned a bottom 6. The bottom 6 is formed as a flat element with a flat away from the can wall portion 7. It is inserted from the bottom into the can until the free edge 8 of the edge portion 7 is flush with the end edge 4 of the shell 1. Then takes place along the edge 7 a Ultraschallverschweißung between the bottom and the shell 1. This is given at this point an airtight connection.

Auf der gegenüberliegenden, im Gebrauchszustand oberen Seite der Hülle 1 wird ein Ring 9 angeordnet, der mit seiner Außenseite an der Innenseite der Hülle 1 angeschweißt wird und der geringfügig in die Hülle 1 hinein ragt. Der Ring 9 bildet eine Innenseite 10, an der der Außenrand 11 des Deckels 5 zur Anlage kommt und an der er angeschweißt wird. Dieser Außenrand 11 des Deckels 5 weist Peeleigenschaften auf, das heißt er kann dort leichter abgelöst werden.On the opposite, in use state upper side of the shell 1, a ring 9 is arranged, which is welded with its outer side to the inside of the shell 1 and slightly protrudes into the shell 1 into it. The ring 9 forms an inner side 10, at which the outer edge 11 of the lid 5 comes to rest and to which it is welded. This outer edge 11 of the lid 5 has Peeleigenschaften, that is, he can be easily detached there.

Die Figur 2 zeigt die Einzelheiten, die gerade beschrieben wurden, in ihrer gegenseitigen Zuordnung. Die Hülle 1 ist abgebrochen dargestellt. In die linke Seite entsprechend der Stirnkante 3 wird also der Ring 9 eingesetzt, der eine Außenfläche 12 und eine Innenfläche 13 aufweist. Mit der Außenfläche 12 wird er mit der Innenseite der Hülle 1 verbunden. Er weist an seiner Außenfläche 12 einen Flansch 14 auf, der eine Anlagefläche 15 bildet. Dadurch ist die korrekte Position des Rings 9 gegenüber der Hülle 1 definiert.Figure 2 shows the details just described in their mutual association. The shell 1 is shown broken off. In the left side corresponding to the front edge 3 so the ring 9 is used, which has an outer surface 12 and an inner surface 13. With the outer surface 12, it is connected to the inside of the shell 1. It has on its outer surface 12 a flange 14 which forms a contact surface 15. As a result, the correct position of the ring 9 relative to the shell 1 is defined.

Mit der Innenseite 13 des Rings 19 wirkt die Außenseite 11 des Deckels 5 zusammen. Auch der Deckel 5 weist an seinem Endbereich einen nach außen vorspringen Flansch 16 auf, an dem beispielsweise eine Anfasslasche 17 ausgebildet sein kann. An diesen Flansch 16' schließt sich ein zylindrischer Teil an, der dann von einer nach außen gerichteten Sicke 18 gefolgt wird.With the inner side 13 of the ring 19, the outer side 11 of the lid 5 cooperates. Also, the lid 5 has at its end an outwardly projecting flange 16 on which, for example, a grip tab 17 may be formed. At this flange 16 'is followed by a cylindrical part, which is then followed by an outwardly directed bead 18.

Der Deckel 5 wird zunächst in den Ring 9 eingeschoben und dann als Einheit in die etwas aufgeweitete Hülle 1 eingesetzt, und anschließend mit dieser ultraschallverschweißt.The lid 5 is first inserted into the ring 9 and then inserted as a unit in the slightly expanded casing 1, and then ultrasonically welded with this.

Am gegenüberliegenden Ende wird das Bodenelement mit seinem Mantel 7 ebenfalls in das Ende der Hülle von der Stirnkante 4 aus eingeschoben, bis die freie Kante 8 des Bodenelements 6 bündig mit der Stirnkante 4 verläuft. Anschließend erfolgt längs des Randes eine Ultraschallverschweißung.At the opposite end of the bottom element is also inserted with its jacket 7 in the end of the shell of the front edge 4, until the free edge 8 of the bottom member 6 is flush with the front edge 4. Subsequently, an ultrasonic welding takes place along the edge.

Natürlich erfolgt das Anschweißen des Deckels erst, wenn die Dose mit dem Genussmittel oder dem Lebensmittel gefüllt ist.Of course, the lid is welded on only when the can is filled with the stimulant or the food.

Figur 3 zeigt die Draufsicht auf ein Überdruckventil, wie es im Boden 6 der Dose erfindungsgemäß angebracht werden kann. Dieses Überdruckventil enthält zwei miteinander verbundene Schichten aus Kunststoff, wobei in der dem Behälter zugewandten Schicht 23 eine definierte Öffnung 20 vorhanden ist. Über diese untere Schicht 23 ist eine obere Schicht 24 gelegt, die mithilfe zweier Klebeschichten mit der unteren Kunststoffschicht 23 verklebt ist. Die beiden Klebeschichen erstrecken sich vom Rand aus bis in Richtung auf das Loch 20, lassen zwischen sich aber einen Abstand frei. Die einander zugewandten Kanten 22 der Klebeschicht bilden einen von einer Kante 25 des Überdruckventils zu der anderen Kante 25 durchgehenden Kanal, in dem die Öffnung 20 mündet. Zwischen die beiden Schichten 23, 24 ist in diesem Kanal 21 ein Tropfen Siliconöl aufgebracht. Die beiden Schichten liegen also unterstützt durch das Siliconöl auch innerhalb des Kanal 25 aneinander an. Wenn in dem Inneren der Dose ein Überdruck entsteht, so kann er durch den Zwischenraum zwischen der unteren Folie, den Kanten 22 durch den Kanal in der Figur 4 nach oben und unten entweichen. Je nachdem, wie groß Loch 20 und die Dicke und Breite der Klebeschichten ist, lässt sich der Druck einstellen, bei dem das Überdruckventil öffnet. Erfindungsgemäß kann hier ein Tropfen Silikonöl aufgebracht werden, mit dem sich die Charakteristik des Überdruckventils noch besser regulieren lässt.Figure 3 shows the top view of a pressure relief valve, as it can be mounted according to the invention in the bottom 6 of the can. This pressure relief valve contains two interconnected layers of plastic, wherein in the container-facing layer 23, a defined opening 20 is present. Over this lower layer 23, an upper layer 24 is laid, which is bonded by means of two adhesive layers with the lower plastic layer 23. The two adhesive layers extend from the edge towards the hole 20, but leave a gap between them. The mutually facing edges 22 of the adhesive layer form a continuous from one edge 25 of the pressure relief valve to the other edge 25 channel in which the opening 20 opens. Between the two layers 23, 24, a drop of silicone oil is applied in this channel 21. The two layers are thus supported by the silicone oil also within the channel 25 to each other. If an overpressure arises in the interior of the can, it can escape upwards and downwards through the space between the lower film, the edges 22, through the channel in FIG. Depending on the size of hole 20 and the thickness and width of the adhesive layers, the pressure at which the pressure relief valve opens can be adjusted. According to the invention, a drop of silicone oil can be applied here, with which the characteristic of the pressure relief valve can be regulated even better.

Nun zu Figur 5. Figur 5 zeigt sehr vereinfacht, wie man aus einer als Endlosband vorliegenden Folie den Behälter herstellt. Die Folie 30 wird von einer Folienrolle 31 abgewickelt. Die Folienrolle besitzt eine Breite, die dem Umfang der Dose entspricht. Die Folie kann auf ihrer späteren Innenseite einzelne Markierungen 32 aufweisen, die angeben, an welchen Stellen die Folie zu zertrennen ist. Die Folie wird dann eingerollt, so dass die früheren Seitenkanten des Endlosbandes 30 einander etwas überlappen. Dort erfolgt eine Verschweißung zur Bildung der Längsnaht 2. Auf diese Weise ist die Hülle 1 gebildet. Das Herumlegen und Verschweißen kann auf einem Dorn geschehen, der die Hülle auch dann hält, wenn der Boden 6 in das eine Ende eingesetzt wird.Turning now to FIG. 5. FIG. 5 shows in a very simplified manner how to produce the container from a film in the form of an endless belt. The film 30 is unwound from a film roll 31. The film roll has a width corresponding to the circumference of the can. The film may have on its later inner side individual markings 32, which indicate at which points the film is to be cut. The film is then rolled up so that the earlier side edges of the endless belt 30 slightly overlap one another. There is a weld to form the longitudinal seam 2. In this way, the shell 1 is formed. The laying around and welding can be done on a mandrel, which holds the shell even when the bottom 6 is inserted into one end.

Im Einzelnen wird folgendermaßen vorgegangen. Die Folie 30 wird von der Folienrolle 31 in eine Registerschlaufe vorabgewickelt. Von dort wird über Vakuumsaugbänder, die mit Servomotoren angetrieben werden, die benötigte Abschnittlänge abgezogen. Dies wird über die Markierungen 32 gesteuert, die auf der Folie angebracht sind. Die Folie wird auf einen Falttisch transportiert und dort abgeschnitten.In detail, the procedure is as follows. The film 30 is pre-wound from the film roll 31 into a registration loop. From there, the required section length is drawn off via vacuum suction belts, which are driven by servomotors. This is controlled by the markers 32 which are mounted on the foil. The film is transported to a folding table and cut there.

Der abgeschnittene rechteckige Zuschnitt wird um einen runden Faltdorn gefaltet. Die Folie wird mit Saugluft auf dem Dorn gehalten. Die beiden Ränder überlappen sich und bilden eine Überlappnaht.The trimmed rectangular blank is folded around a round folding mandrel. The film is held on the mandrel with suction air. The two edges overlap and form an overlap seam.

Es sind mehrere Dorne sternförmig an einem Rad angebracht, beispielsweise acht Dorne. Auf diesen Dorn wird die Längsnaht gesiegelt. Als Siegelunterlage dient eine Siegelleiste, die aus Stahl und PTFE besteht. In der Dornoberfläche gibt es Löcher, mit denen die Folie von der Siegelleiste abgeblasen werden kann. Die Siegelleiste ist erforderlich, da die Folie innen siegelfähig sein muss.There are several spikes star-shaped attached to a wheel, for example, eight spikes. On this mandrel, the longitudinal seam is sealed. The sealing pad is a sealing strip made of steel and PTFE. There are holes in the mandrel surface that can be used to blow off the foil from the sealing strip. The sealing strip is required because the film must be sealable inside.

In der nächsten Station, das heißt nach Drehen des die Dorne enthaltenden Rades, wird die Folie um den Bodenbereich von dem Dorn heruntergezogen. In der nächsten Station wird der Bodenbereich etwas aufgeweitet, beispielsweise auf eine Schräge von 15°.In the next station, that is, after turning the wheel containing the mandrels, the film is pulled down around the bottom area of the mandrel. In the next station, the floor area is slightly widened, for example, to a slope of 15 °.

In dieser Station wird das Bodenbauteil 6 eingesetzt. Dieses Bauteil wird ebenfalls von einer Folienrolle verarbeitet. Die Folie wird über einen Servomotor mit Rollen von der Folienrolle abgezogen. Eine mit einem Tiefziehwerkzeug verbundene Stanze schneidet das Bodenbauteil aus und verformt den Rand in der dargestellten Weise. Über eine Drehscheibe wird dieses Bauteil vor das Siegelwerkzeug gebracht. Dieses Werkzeug übernimmt das Bodenbauteil mithilfe von Unterdruck und fügt es in die Hülle 1 bei gleichzeitigem Siegeln ein. Diese Versiegelung kann thermisch oder mit Ultraschall erfolgen.In this station, the bottom member 6 is used. This component is also processed by a film roll. The film is pulled off from the film roll by means of a servomotor with rollers. A punch connected to a thermoforming tool cuts out the bottom member and deforms the rim as shown. About a turntable, this component is placed in front of the sealing tool. This tool takes over the soil component using vacuum and adds it in the shell 1 at the same time a seal. This sealing can be done thermally or with ultrasound.

In der nächsten Station des die Faltdorne aufweisenden Rades wird die füllfertige Dose vom Dorn abgezogen, beispielsweise durch mit Blasluft unterstütztes mechanisches Abziehen. Die Dose wird dann um 90° gedreht, so dass die Öffnung nach oben gerichtet ist, und wird in ein intermittierendes Rad eingesetzt. Auf diesem Rad wird das Füllgut eingebracht und die Dose verschlossen.In the next station of the folding mandrels having wheel, the ready-to-fill box is removed from the mandrel, for example by assisted with blowing air mechanical peeling. The can is then rotated 90 ° so that the opening faces up, and is inserted into an intermittent wheel. On this wheel, the contents are introduced and the can closed.

Das Befüllen kann beispielsweise mit Kaffeepads oder auch mit gemahlenem Kaffee erfolgen.The filling can be done for example with coffee pads or ground coffee.

Beim Füllen von Kaffeepads werden diese von der Herstellung in Gruppenstapeln in Kassetten übernommen. Die Kassetten sind in Gruppen an einer Kette angebracht. Die Ketten können sich individuell bewegen.When filling coffee pods, these are taken over from the production into group stacks in cassettes. The cassettes are mounted in groups on a chain. The chains can move individually.

Auf dem Weg von der Padmaschine zur Foliendosenmaschine werden die Pads evakuiert und wieder mit Stickstoff begast, das heißt die Luft wird aus dem Stapel entfernt. Der Stapel Pads wird über die Düse der Foliendosemaschine gefahren und dort in die Dose geschoben. Dabei ist eine Düse behilflich, die auf den Durchmesser der Kaffeepads ausgelegt ist. Die Dose kann zuvor mit Flüssigstickstoff beaufschlagt werden, der nach circa 4 Sekunden verdampft und somit einen kontrollierten Überdruck in der Foliendose erzeugt.On the way from the pad machine to the film can machine, the pads are evacuated and refilled with nitrogen, which means the air is removed from the stack. The stack of pads is driven over the nozzle of the foil dosing machine and pushed there into the can. In this case, a nozzle is helpful, which is designed for the diameter of the coffee pods. The can can be pre-pressurized with liquid nitrogen, which evaporates after about 4 seconds and thus produces a controlled overpressure in the film box.

Die Dose wird nun bis zur Deckelaufsetzstation transportiert, in der der Deckel in die Dose eingefügt wird. Dies kann ein Ring mit aufgesiegeltem Deckel sein, siehe oben, oder auch nur eine Folie, die in die Dose geschoben wird. Danach wird der Ring an den Mantel gesiegelt.The can is now transported to the lid loading station, in which the lid is inserted into the can. This may be a ring with lid attached, see above, or just a foil that is pushed into the can. Thereafter, the ring is sealed to the jacket.

Der sich in der Dose aufbauende Überdruck, entstehend durch von dem Kaffee ausgehenden Gas, kann, sobald er die erwähnten Wert überschreitet, durch das Überdruckventil abgegeben werden.The overpressure building up in the can, resulting from gas emanating from the coffee, can, as soon as it exceeds the mentioned value, be discharged through the pressure relief valve.

Claims (15)

Dose zum Abpacken von Lebens- und Genussmitteln, mit 1.1 einer zylindrischen Hülle (1) aus einem siegelfähigen Material, insbesondere Polypropylen, 1.2 einem in das eine Ende der Hülle (1) eingeschweißten Boden (6), 1.3 einem in das dem Boden (6) abgewandte Ende der Hülle (1) eingeschweißten Deckel (5). Can for packaging of food and beverages, with 1.1 a cylindrical shell (1) made of a sealable material, in particular polypropylene, 1.2 a in one end of the shell (1) welded bottom (6), 1.3 a in the bottom (6) facing away from the end of the shell (1) welded lid (5). Dose nach Anspruch 1, bei der in das dem Deckel (5) zugeordnete Ende der Hülle (1) ein Ring (9) aus Polypropylen eingeschweißt ist, der eine innere Mantelfläche (13) bildet, an der der Deckel (5) mit einer Randfläche (11) anliegt.Can according to Claim 1, in which a ring (9) made of polypropylene is welded into the end of the envelope (1) associated with the lid (5), forming an inner jacket surface (13) on which the lid (5) has an edge surface (11) is present. Dose nach Anspruch 1 oder 2, bei der der Deckel (5) mindestens an seiner der Hülle (1) zugeordneten Randfläche (11) mit einer Peelschicht versehen ist beziehungsweise Peeleigenschaften aufweist.Can according to Claim 1 or 2, in which the lid (5) is provided with a peel layer or has peeling properties at least on its edge surface (11) associated with the casing (1). Dose nach einem der vorhergehenden Ansprüche, bei der der Boden (6) eine flachzylindrische Mantelfläche (7) aufweist, längs der er mit der Hülle (1) verschweißt ist.Box according to one of the preceding claims, in which the base (6) has a flat-cylindrical lateral surface (7), along which it is welded to the shell (1). Dose nach Anspruch 4, bei der die Mantelfläche (7) mit ihrer freien Kante (7) bündig mit der Kante (4) der Hülle (1) verläuft.Can according to claim 4, in which the lateral surface (7) runs with its free edge (7) flush with the edge (4) of the casing (1). Dose nach einem der vorhergehenden Ansprüche, bei der die Dose ein Überdruckventil (Figur 3) aufweist.Box according to one of the preceding claims, wherein the can has a pressure relief valve (Figure 3). Dose nach Anspruch 6, bei der das Überdruckventil im Boden (6) der Dose angeordnet ist.Can according to claim 6, in which the overpressure valve is arranged in the bottom (6) of the can. Dose nach einem der vorhergehenden Ansprüche, bei der die Hülle (1) der Dose eine Längsnaht (2) aufweist.Can according to one of the preceding claims, in which the casing (1) of the can has a longitudinal seam (2). Dose nach einem der vorhergehenden Ansprüche, bei der die Hülle Kreiszylinderform aufweist.Can according to one of the preceding claims, in which the envelope has a circular cylindrical shape. Verfahren zum Herstellen einer Dose, bei dem 10.1 eine Folie als Endlosband von einer Rolle (31) abgerollt wird, 10.2 die Folie in einzelne Abschnitte zertrennt wird, 10.3 jeder Abschnitt zu einer zylindrischen Hülle (1) geformt wird, deren Längsränder sich etwas überlappen, 10.4 die Längsränder miteinander verschweißt werden, 10.5 in das eine Ende der dadurch gebildeten Hülle (1) ein Boden (6) eingeschweißt wird, 10.6 nach den Befüllen in das offene Ende der Hülle (1) ein Deckel (5) eingeschweißt wird. Method for producing a can, in which 10.1 a film is unrolled as an endless belt from a roll (31), 10.2 the film is divided into individual sections, 10.3 each section is formed into a cylindrical shell (1) whose longitudinal edges overlap slightly, 10.4 the longitudinal edges are welded together, 10.5 in the one end of the envelope (1) formed thereby a bottom (6) is welded, 10.6 after filling in the open end of the shell (1) a lid (5) is welded. Verfahren nach Anspruch 10, bei dem der Boden (6) mit Abstand von der Stirnkante (4) der Hülle (1) angebracht wird.A method according to claim 10, wherein the bottom (6) is spaced from the end edge (4) of the shell (1). Verfahren nach Anspruch 10 oder 11, bei dem in der Wand der Dose, insbesondere im Boden (6), ein Überdruckventil angebracht wird.The method of claim 10 or 11, wherein in the wall of the can, in particular in the bottom (6), a pressure relief valve is mounted. Verfahren nach einem der Ansprüche 10 bis 12, bei dem in das dem Deckel (5) zugeordnete Ende der Hülle (1) ein Ring (9) eingesetzt wird, der an der Innenseite der Hülle (1) anliegt und an dessen innerer Mantelfläche (13) der Deckel (5) zum Anliegen gebracht wird.Method according to one of claims 10 to 12, in which in the cover (5) associated with the end of the shell (1) a ring (9) is inserted, which rests against the inside of the shell (1) and on its inner circumferential surface (13 ) the lid (5) is brought into contact. Verfahren nach Anspruch 13, bei dem der Ring (9) und der Deckel (5) zusammengefügt und dann gemeinsamen an der Hülle (1) angeschweißt werden.Method according to claim 13, in which the ring (9) and the lid (5) are joined together and then welded together to the casing (1). Verfahren nach einem der Ansprüche 10 bis 14, bei dem der Deckel (5) mindestens an seinem der Hülle (1) zugeordneten Außenseite mit Peeleigenschaften versehen wird.Method according to one of Claims 10 to 14, in which the cover (5) is provided with peeling properties at least on its outer side associated with the casing (1).
EP07013744A 2006-07-28 2007-07-13 Packing container Active EP1882637B1 (en)

Applications Claiming Priority (1)

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DE102006036137A DE102006036137A1 (en) 2006-07-28 2006-07-28 packaging container

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EP1882637A1 true EP1882637A1 (en) 2008-01-30
EP1882637B1 EP1882637B1 (en) 2012-01-11

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AT (1) ATE540871T1 (en)
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US8783515B2 (en) 2012-10-25 2014-07-22 Sonoco Development, Inc. Dispenser with fitment
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US11691777B2 (en) 2019-07-08 2023-07-04 Sonoco Development Inc. Container construction with flexible liner and one-way valve

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EP1882637B1 (en) 2012-01-11
DE102006036137A1 (en) 2008-01-31
ATE540871T1 (en) 2012-01-15

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