EP2684803B1 - Method for manufacturing a packaging - Google Patents

Method for manufacturing a packaging Download PDF

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Publication number
EP2684803B1
EP2684803B1 EP20120005121 EP12005121A EP2684803B1 EP 2684803 B1 EP2684803 B1 EP 2684803B1 EP 20120005121 EP20120005121 EP 20120005121 EP 12005121 A EP12005121 A EP 12005121A EP 2684803 B1 EP2684803 B1 EP 2684803B1
Authority
EP
European Patent Office
Prior art keywords
film
frames
sealing
frame
bottom film
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.)
Not-in-force
Application number
EP20120005121
Other languages
German (de)
French (fr)
Other versions
EP2684803A1 (en
Inventor
Roland Wilhelm
Reinhard Ruhland
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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 Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Priority to EP20120005121 priority Critical patent/EP2684803B1/en
Priority to US13/938,956 priority patent/US20140018220A1/en
Publication of EP2684803A1 publication Critical patent/EP2684803A1/en
Application granted granted Critical
Publication of EP2684803B1 publication Critical patent/EP2684803B1/en
Not-in-force 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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/021—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas the containers or wrappers being interconnected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • 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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/08—Containers of variable capacity
    • B65D21/086—Collapsible or telescopic containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • 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
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • 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
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2096—Adhesive means
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B65D85/76—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials for cheese

Definitions

  • the invention relates to a method with the features of claim 1 for producing a reclosure pack with a reinforced shell edge.
  • the method according to the invention can expediently be carried out on a cyclically operating packaging machine.
  • the plurality of troughs in the lower foil are produced either simultaneously in a single working stroke, or successively in several successive working strokes.
  • a number of frames corresponding to the number of wells of the respective work cycle should then be brought to the lower film.
  • either a single trough or several troughs could be created in a single stroke.
  • a stamping station of a thermoforming packaging machine generates the frame from a full-surface web-shaped material to facilitate the operator of the thermoforming packaging machine the ability to put different film rolls for different frames to his camp and different frame with the punching station of the thermoforming packaging machine on this even at producing the packaging.
  • the gain of the packaging edge can be easily varied.
  • the lid film is sealed together in the sealing station together with the frame and the lower film to allow a short design of thermoforming packaging machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Vacuum Packaging (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren mit den Merkmalen des Anspruchs 1 zum Herstellen einer Wiederverschlusspackung mit einem verstärkten Schalenrand.The invention relates to a method with the features of claim 1 for producing a reclosure pack with a reinforced shell edge.

Es ist aus der EP 2 070 488 A1 eine Verpackung für medizinische Geräte bekannt, die aus drei bahnförmigen Materialien hergestellt wird. Dabei ist ein Material Tyvec®, das an einen Ausschnitt in der Kunststoff-Deckelfolie angebracht wird und zusammen mit einer Kunststoffwanne eine Verpackung bildet.It is from the EP 2 070 488 A1 a packaging for medical devices is known, which is made of three web-shaped materials. One material is Tyvec®, which is attached to a cutout in the plastic cover film and forms a package together with a plastic tub.

Aus der DE 10 2006 017 258 A1 der Anmelderin selbst sind eine Verpackung und ein Verfahren zur Herstellung einer Verpackung mit einem verstärkten Verpackungsrand bekannt. Dabei wird eine Verpackung auf einer Tiefziehverpackungsmaschine hergestellt, wobei die Verpackung einen abgewinkelten Randabschnitt aufweist, um einen mechanisch stabilen Verpackungsrand bereitzustellen, damit auch nach einer Evakuierung und abschließenden Siegelung mit einer Deckelfolie die Verpackung ihre Form beibehält.From the DE 10 2006 017 258 A1 The applicant itself is aware of a packaging and a method for producing a packaging with a reinforced packaging edge. In this case, a package is produced on a thermoforming packaging machine, wherein the package has an angled edge portion to provide a mechanically stable packaging edge, so that even after evacuation and final sealing with a lid foil, the package retains its shape.

Dokument US-A-5 163 269 beschreibt ein Herstellungsverfahren einer Verpackung mit einer verstärkten Rand.document US-A-5,163,269 describes a method of manufacturing a packaging with a reinforced edge.

Es ist Aufgabe der vorliegenden Erfindung eine Kunststoffverpackung bereitzustellen, die zum Einen aus einer Weichfolie herstellbar sein soll und zum Anderen einen stabilen Siegelrand aufweisen soll, um eine Wiederverschließbarkeit bei Verwendung von peelfähigen und klebefähigen Folien zu ermöglichen.It is an object of the present invention to provide a plastic packaging which, on the one hand, should be producible from a flexible film and, on the other hand, should have a stable sealing edge in order to enable reclosability when using peelable and adhesive films.

Diese Aufgabe wird durch ein Verfahren nach Anspruch 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a method according to claim 1. Advantageous developments of the invention are specified in the subclaims.

Das erfindungsgemäße Verfahren zum Herstellen einer Wiederverschlusspackung, die einen verstärkten Verpackungsrand und wenigstens drei Lagen Folien aufweist, umfasst folgende Prozessschritte:

  • Formen mehrerer Mulden in eine Unterfolie in einer Formstation,
  • Zuführen von mehreren Rahmen in einer der Anzahl der geformten Mulden entsprechenden Anzahl an die Unterfolie,
  • Ansiegeln der Rahmen an die Unterfolie in einer Siegelstation,
  • Siegeln einer Deckelfolie an die Rahmen oder die Unterfolie.
The method according to the invention for producing a reclosable package, which has a reinforced packaging edge and at least three layers of film, comprises the following process steps:
  • Forming several troughs in a lower foil in a forming station,
  • Supplying a plurality of frames in a number corresponding to the number of shaped troughs to the lower film,
  • Sealing the frames to the bottom foil in a sealing station,
  • Sealing a cover foil to the frame or the bottom foil.

Durch den an die Unterfolie angesiegelten Rahmen lässt sich der Bereich des Verpackungsrandes und damit der Siegelbereich für die Deckelfolie verstärken, um eine ergonomisch und gut handhabbare Wiederverschlussmöglichkeit auch bei einer Ausführung der Unterfolie als Weichfolie bereitstellen zu können.By sealed to the lower film frame, the area of the packaging edge and thus the sealing area for the cover film can be strengthened in order to provide an ergonomic and easy-to-handle reclosure option even with a design of the lower film as a soft film can.

Das erfindungsgemäße Verfahren kann zweckmäßigerweise auf einer taktweise arbeitenden Verpackungsmaschine ausgeführt werden. In diesem Fall wäre es denkbar, dass die mehreren Mulden in der Unterfolie entweder gleichzeitig in einem einzigen Arbeitstakt erzeugt werden, oder aber nacheinander in mehreren aufeinanderfolgenden Arbeitstakten. In jedem Arbeitstakt sollte dann eine zur Anzahl der Mulden des jeweiligen Arbeitstaktes entsprechende Anzahl von Rahmen an die Unterfolie herangeführt werden. Mit anderen Worten könnten in einem einzigen Arbeitstakt entweder eine einzige Mulde oder aber mehrere Mulden erzeugt werden.The method according to the invention can expediently be carried out on a cyclically operating packaging machine. In this case, it would be conceivable that the plurality of troughs in the lower foil are produced either simultaneously in a single working stroke, or successively in several successive working strokes. In each work cycle, a number of frames corresponding to the number of wells of the respective work cycle should then be brought to the lower film. In other words, either a single trough or several troughs could be created in a single stroke.

Vorzugsweise erfolgt das Siegeln unter Vakuum und/oder modifizierter Atmosphäre und erzeugt eine gasdichte Verpackung, um beispielsweise Lebensmittel gasdicht und somit lange haltbar zu verpacken.Preferably, the sealing is carried out under vacuum and / or modified atmosphere and produces a gas-tight packaging, for example, food gas-tight and thus long-lasting packaging.

Bevorzugt werden die Rahmen als bahnförmiges Material mit Öffnungen von einer Rolle abgewickelt und der Siegelstation zugeführt, um die Rahmen als Folienverbund mit Öffnungen auf einer Tiefziehverpackungsmaschine zu verarbeiten.Preferably, the frames are unwound as a sheet material having openings from a roll and fed to the sealing station to process the frames as a film composite having openings on a thermoforming packaging machine.

In einer vorteilhaften Ausführung erzeugt eine Stanzstation einer Tiefziehverpackungsmaschine die Rahmen aus einem vollflächigen bahnförmigen Material, um dem Betreiber der Tiefziehverpackungsmaschine die Möglichkeit zu erleichtern, unterschiedliche Folienrollen für unterschiedliche Rahmen an sein Lager legen zu können und unterschiedliche Rahmen mit der Stanzstation der Tiefziehverpackungsmaschine auf dieser selbst bei der Herstellung der Verpackungen erzeugen zu können. Somit kann die Verstärkung des Verpackungsrandes leicht variiert werden.In an advantageous embodiment, a stamping station of a thermoforming packaging machine generates the frame from a full-surface web-shaped material to facilitate the operator of the thermoforming packaging machine the ability to put different film rolls for different frames to his camp and different frame with the punching station of the thermoforming packaging machine on this even at producing the packaging. Thus, the gain of the packaging edge can be easily varied.

Bevorzugt wird als Unterfolie eine Weichfolie mit einer Dicke von höchstens 200 µm verwendet, um eine Entnahme oder Zugänglichkeit des verpackten Produktes zu erleichtern.Preferably, a soft film having a thickness of at most 200 μm is used as the lower film in order to facilitate removal or accessibility of the packaged product.

Vorzugsweise wird als Rahmen eine Hartfolie mit einer Dicke von mindestens 300 µm verwendet, um die Stärkung des Schalenrandes zu verbessern oder um den Einsatz einer günstigen Monofolie zu ermöglichen.Preferably, a rigid film with a thickness of at least 300 microns is used as a frame to improve the strengthening of the shell edge or to allow the use of a cheap monofilm.

In einer vorteilhaften Ausführung werden die Rahmen und die Unterfolie untrennbar aneinander gesiegelt, wodurch sichergestellt wird, dass beim Öffnen der Verpackung durch Abziehen der Deckelfolie nur diese selbst sich von der Unterfolie oder dem Rahmen löst.In an advantageous embodiment, the frame and the bottom foil are inseparably sealed to one another, which ensures that when the package is opened by peeling off the lid foil, only this itself is released from the bottom foil or the frame.

Vorzugsweise wird die Deckelfolie in der Siegelstation gemeinsam mit den Rahmen und der Unterfolie aneinander gesiegelt, um eine kurze Bauform der Tiefziehverpackungsmaschine zu ermöglichen.Preferably, the lid film is sealed together in the sealing station together with the frame and the lower film to allow a short design of thermoforming packaging machine.

In einer bevorzugten alternativen Ausführungsform wird die Deckelfolie in einer weiteren Siegelstation an die Rahmen gesiegelt, um die Leistung der Tiefziehverpackungsmaschine zu steigern, indem der Siegelprozess zwischen Deckelfolie und Rahmen sowie Rahmen und Unterfolie nacheinander ablaufen können, wobei die jeweilige Prozesszeit üblicherweise kürzer ist als die Prozesszeit, die beim gemeinsamen Siegeln von allen drei Lagen Folien benötigt wird.In a preferred alternative embodiment, the lidding film is sealed to the frames in a further sealing station in order to increase the performance of the thermoforming packaging machine in that the sealing process between the lidding film and the frame and the frame and bottom film can take place successively, the respective process time usually being shorter than the processing time , which is needed for sealing together all three layers of film.

In einer weiteren vorteilhaften Ausführungsform werden die Rahmen an die Unterseite der Unterfolie gesiegelt, um dem Verpackungsrand eine hohe mechanische Stabilität zu geben und gleichzeitig ein peelfähiges und wiederverschließbares Öffnen der Deckelfolie von der Unterfolie zu ermöglichen. Dabei ist es denkbar, dass die Rahmen in Form von einzelnen nicht miteinander verbundenen Rahmen vor dem Siegeln in der Siegelstation in das Siegelwerkzeugunterteil automatisiert, beispielsweise mittels eines Roboters, eingelegt werden, um an die Unterseite des Verpackungsrandes angesiegelt zu werden. Diese Siegelung muss nicht durchgehend und auch nicht gasdicht ausgeführt sein, da es auch ausreicht, wenn die Siegelung der Deckelfolie mit der Unterfolie gasdicht erfolgt. Denkbar sind auch Rahmen, die nicht aus einem Kunststoff bestehen, sondern beispielsweise aus einem recyclingfähigen Material mit einer guten Steifigkeit.In a further advantageous embodiment, the frames are sealed to the underside of the lower film in order to give the packaging edge a high mechanical stability and at the same time to enable a peelable and resealable opening of the cover film from the lower film. It is conceivable that the frame in the form of individual non-interconnected frame automated before the sealing in the sealing station in the sealing tool base, for example by means of a robot, are inserted to be sealed to the underside of the packaging edge. This seal does not have to be continuous and also not gas-tight, since it is also sufficient if the sealing of the cover film with the lower film is gastight. Also conceivable are frames that are not made of a plastic, but for example of a recyclable material with a good rigidity.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Im Einzelnen zeigen:

Fig. 1
eine mit dem erfindungsgemäßen Verfahren herstellbare Verpackung in einer Explosionsdarstellung,
Fig. 1 a
die Verpackung beim Öffnen,
Fig. 1 b
die Verpackung nach dem Öffnen,
Fig. 1c
die Verpackung beim Wiederverschließen,
Fig. 2
eine schematische Darstellung einer mit dem erfindungsgemäßen Verfahren betreibbare Tiefziehverpackungsmaschine und
Fig. 3
eine schematische Darstellung einer Tiefziehverpackungsmaschine zum Betrieb eines alternativen erfindungsgemäßen Verfahrens.
In the following, an advantageous embodiment of the invention is explained in detail with reference to a drawing. In detail show:
Fig. 1
a packaging producible by the method according to the invention in an exploded view,
Fig. 1 a
the packaging when opening,
Fig. 1 b
the packaging after opening,
Fig. 1c
the packaging when resealing,
Fig. 2
a schematic representation of a processable with the inventive method thermoforming packaging machine and
Fig. 3
a schematic representation of a thermoforming packaging machine for operating an alternative method according to the invention.

Gleiche Komponenten sind in den Figuren durchgängig mit gleichen Bezugszeichen versehen.The same components are provided throughout the figures with the same reference numerals.

Fig. 1 zeigt eine Verpackung 1 in einer Explosionsdarstellung mit einer zu einer Mulde 2 geformte Unterfolie 3, in der ein Produkt 4, beispielsweise ein Käseblock, verpackt ist. Auf die Unterfolie 3 sind ein umlaufender Rahmen 5 mit einer Öffnung 6 und darüber eine Deckelfolie 7 entlang einer Siegelnaht 8 miteinander gasdicht versiegelt. Die Unterfolie 3 und die Deckelfolie 7 sind aus Weichfolie und der Rahmen 5 aus Hartfolie, um dem Verpackungsrand 9 eine ausreichende mechanische Stabilität zu geben. Fig. 1 shows a packaging 1 in an exploded view with a molded into a trough 2 bottom foil 3, in which a product 4, for example, a block of cheese, is packaged. On the lower film 3, a peripheral frame 5 with an opening 6 and about a lid film 7 along a sealed seam 8 sealed together gas-tight. The lower film 3 and the lid film 7 are made of soft film and the frame 5 made of hard film to give the packaging edge 9 sufficient mechanical stability.

Fig. 1 a zeigt die Verpackung 1 beim Öffnen, wobei die Deckelfolie 7 von dem Rahmen 5 abgezogen wird. Die Verbindung zwischen der Deckelfolie 7 und dem Rahmen 5 ist dabei peelfähig, das bedeutet abziehbar, aber auch gasdicht. Fig. 1 a shows the packaging 1 during opening, wherein the lid film 7 is removed from the frame 5. The connection between the cover film 7 and the frame 5 is peelable, which means peelable, but also gas-tight.

Nachdem die Deckelfolie 7 weitestgehend von dem Rahmen 5 abgezogen ist, kann, wie in Fig. 1b gezeigt, durch die weitestgehend komplementäre Öffnung 6 des Rahmens und der Mulde 2 sowie durch die Ausführung der Unterfolie 3 als Weichfolie der Rahmen 5 durch Verschieben nach unten am Produkt 4 entlang das Produkt 4 freigeben. Anschließend kann auf einfache Weise das Produkt 4 entnommen oder bearbeitet werden. Beispielsweise kann mit einem Schaber Käse von einem Käseblock abgenommen werden.After the lidding film 7 has been removed as far as possible from the frame 5, as shown in FIG Fig. 1b shown by the largely complementary opening 6 of the frame and the trough 2 and by the execution of the lower film 3 as a soft film of the frame 5 by moving down on the product 4 along the product 4 release. Subsequently, the product 4 can be removed or processed in a simple manner. For example, cheese can be removed from a block of cheese with a scraper.

Figur. 1c zeigt die Verpackung 1 vor dem Wiederverschließen der Deckelfolie 7 mit dem Rahmen 5, nachdem der Rahmen 5 angehoben wurde. Dabei ist die Verbindung bzw. die Siegelnaht 8 zwischen Deckelfolie 7 und Rahmen 5 klebefähig ausgeführt, um die Deckelfolie 7 auf den Rahmen 5 aufzubringen, um ein Austrocknen des Produkts beispielsweise bei der Lagerung im Kühlschrank zu verhindern. Dies ist auf einfache und ergonomische Weise dadurch ermöglicht, dass für den Rahmen 5 eine Hartfolie verwendet wird, um dem Verpackungsrand und damit auch der Siegelnaht 8 die nötige Stabilität zu geben, damit eine annähernd ebene Fläche bereitgestellt wird. Figure. 1c shows the package 1 before reclosing the cover sheet 7 with the frame 5 after the frame 5 has been raised. In this case, the connection or the sealing seam 8 between the cover film 7 and the frame 5 is designed to be adhesive, in order to apply the cover film 7 to the frame 5, in order to prevent the product from drying out, for example during storage in the refrigerator. This is possible in a simple and ergonomic way, that is used for the frame 5, a hard film to the Packaging edge and thus the sealing seam 8 to give the necessary stability, so that an approximately flat surface is provided.

Auf der in Fig. 2 gezeigten Tiefziehverpackungsmaschine 12 wird eine Unterfolie 3 von einer Folienrolle 13 abgezogen. In einer Formstation 15 wird die Unterfolie 3 abschnittsweise zu Mulden 2 tiefgezogen. In einer nachfolgenden Füllstation 16 werden die Mulden 2 mit einem Produkt 4 befüllt.On the in Fig. 2 shown thermoforming packaging machine 12, a lower film 3 is withdrawn from a film roll 13. In a forming station 15, the lower film 3 is partially deep drawn to troughs 2. In a subsequent filling station 16, the wells 2 are filled with a product 4.

Rahmen 5 werden von einer Folienrolle 17 abgezogen und einer Siegelstation 18 zugeführt. In der Siegelstation 18 werden die Rahmen 5, wobei je ein Rahmen 5 einer Mulde 2 der Unterfolie 3 zugeordnet ist, an die Unterfolie 3 gesiegelt. Dabei kann die Siegelung eine durchgehende gasdichte (nicht dargestellte) Siegelnaht 8 sein oder der Rahmen 5 nur mittels mehrerer Siegelpunkte an die Unterfolie 3 geheftet werden.Frame 5 are withdrawn from a film roll 17 and fed to a sealing station 18. In the sealing station 18, the frames 5, wherein each frame 5 is associated with a trough 2 of the lower foil 3, are sealed to the lower foil 3. In this case, the seal can be a continuous gas-tight (not shown) sealed seam 8 or the frame 5 can be stapled to the lower film 3 only by means of a plurality of sealing points.

In einer in Produktionsrichtung R stromabwärts von der ersten Siegelstation 18 gelegenen weiteren Siegelstation 19 wird die Deckelfolie 7 zugeführt und entlang der Siegelnaht 8 an die Rahmen 5 angesiegelt, um eine gasdicht geschlossene Verpackung 1 zu bilden. Das Siegeln erfolgt in bekannter Weise unter Einwirkung von Wärme und Druck auf die Siegelnaht 8.In a downstream in the direction of production R downstream of the first sealing station 18 further sealing station 19, the lid film 7 is supplied and sealed along the sealed seam 8 to the frame 5 to form a gas-tight closed packaging 1. The sealing takes place in a known manner under the action of heat and pressure on the sealed seam. 8

Stromabwärts von der weiteren Siegelstation 19 befinden eine Quertrenneinrichtung 20 und eine Längstrenneinrichtung 21 für ein Vereinzeln der Produktverpackungen 1 aus dem Verbund der Unterfolie 3. Die vereinzelten Verpackungen 1 gelangen auf ein Abführband 22, das sie aus der Tiefziehverpackungsmaschine 12 heraus transportiert.Downstream of the further sealing station 19 are a cross-cutting device 20 and a longitudinal separator 21 for separating the product packaging 1 from the composite of the lower film 3. The individualized packages 1 reach a discharge conveyor 22, which transports them out of the thermoforming packaging machine 12.

Optional kann eine Stanzvorrichtung 24 vorgesehen sein, die in Produktionsrichtung R stromaufwärts vor der Siegelstation 18 angeordnet ist, um Öffnungen 6 in eine bahnförmige Folienbahn, vorzugsweise eine Hartfolie, zu stanzen, um Rahmen 5 herzustellen.Optionally, a punching device 24 can be provided, which is arranged upstream of the sealing station 18 in the production direction R in order to punch openings 6 into a web-shaped film web, preferably a hard film, in order to produce frames 5.

In Fig. 3 ist eine alternative Tiefziehverpackungsmaschine 14 gezeigt, bei der im Gegensatz zur Tiefziehverpackungsmaschine 12 aus Fig. 2 die Deckelfolie 7 zusammen mit den Rahmen 5 der Siegelstation 19 zugeführt werden, um dort zusammen mit der Unterfolie 3 miteinander zu einer gasdichten Verpackung 1 zusammengesiegelt zu werden. Die Rahmen 5 sind wie in Fig. 2 als bahnförmiges Folienmaterial, vorzugsweise aus Hartfolie, in einer Art Foliengitter mit Öffnungen 6 ausgeführt.In Fig. 3 an alternative thermoforming packaging machine 14 is shown, in contrast to the thermoforming packaging machine 12 off Fig. 2 the cover sheet 7 are supplied together with the frame 5 of the sealing station 19, to be sealed together there with the lower film 3 together to form a gas-tight packaging 1. The frames 5 are as in Fig. 2 as a sheet-like film material, preferably made of hard film, in a kind of film grid with openings 6.

Auch bei der Alternative aus Fig. 3 kann optional eine Stanzvorrichtung 24 vorgesehen sein, die in Produktionsrichtung R stromaufwärts vor der Siegelstation 18 angeordnet ist, um Öffnungen 6 in eine bahnförmige Folienbahn, vorzugsweise eine Hartfolie, zu stanzen, um Rahmen 5 herzustellen.Even with the alternative off Fig. 3 Optionally, a punching device 24 can be provided, which is arranged upstream of the sealing station 18 in the production direction R in order to punch openings 6 into a sheet-like film web, preferably a hard film, to produce frames 5.

In einer nicht dargestellten alternativen Ausführung werden einzelne, beispielsweise aus Spritzguss hergestellte Rahmen 5 in das Siegelwerkzeugunterteil 23 (siehe Fig. 3) mittels nicht dargestellter Roboter eingelegt und zusammen mit der Unterfolie 3 und der Deckelfolie 7 gesiegelt. Bei dieser Ausführung entfällt die Zuführung der Rahmen 5, wie in Fig. 3 gezeigt. Dabei werden aber die Rahmen 5 nicht zwischen Unterfolie 3 und Deckelfolie 7 gesiegelt, sondern die Rahmen 5 werden von unten an die Unterfolie 3 und die Deckelfolie 7 auf die Unterfolie 3 gesiegelt.In an alternative embodiment, not shown, individual, for example made of injection molded frame 5 in the sealing tool lower part 23 (see Fig. 3 ) is inserted by means not shown robot and sealed together with the lower film 3 and the lid film 7. In this embodiment, the supply of the frame 5, as in Fig. 3 shown. In this case, however, the frame 5 are not sealed between lower film 3 and lid film 7, but the frame 5 are sealed from below to the lower film 3 and the lid film 7 on the lower film 3.

Claims (10)

  1. A method of producing a reclosable package (1) including a reinforced package edge (9) and at least three layers of film (3, 5, 7), the method comprising the following process steps:
    - forming a plurality of troughs (2) in a bottom film (3) in a forming station (15),
    - supplying a plurality of frames (5) to the bottom film (3), the number of frames (5)
    corresponding to the number of troughs formed,
    - sealing the frames (5) onto the bottom film (3) in a sealing station (18, 19),
    - sealing a cover film (7) onto the frames (5) or the bottom film (3).
  2. The method according to claim 1, characterized in that sealing takes place under a vacuum and/or modified atmosphere and produces a gastight reclosable package.
  3. The method according to one of the preceding claims, characterized in that the frames (5) are unwound from a roll (17) in the form of a webshaped material with openings (6), and supplied to the sealing station (18, 19).
  4. The method according to one of the preceding claims, characterized in that a punching station (24) of a thermoform packaging machine (12, 14) produces the frames (5) from a full-area, webshaped material.
  5. The method according to one of the preceding claims, characterized in that a soft film having a maximum thickness of 200 µm is used as a bottom film (3).
  6. The method according to one of the preceding claims, characterized in that a hard film having a minimum thickness of 300 µm is used as a material for the frame (5).
  7. The method according to one of the preceding claims, characterized in that the frames (5) and the bottom film (3) are inseparably sealed to one another.
  8. The method according to one of the preceding claims, characterized in that, in the sealing station (19), the cover film (7) together with the frames (5) and the bottom film (3) are sealed onto one another.
  9. The method according to one of the preceding claims 1 to 7, characterized in that the cover film (7) is sealed onto the frames in a sealing station (19), after the frames (5) and the bottom film (3) have previously been sealed onto one another in the other sealing station (18).
  10. The method according to one of the preceding claims 1 or 2, characterized in that the frames (5) are sealed onto the lower side of the bottom film (3).
EP20120005121 2012-07-11 2012-07-11 Method for manufacturing a packaging Not-in-force EP2684803B1 (en)

Priority Applications (2)

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EP20120005121 EP2684803B1 (en) 2012-07-11 2012-07-11 Method for manufacturing a packaging
US13/938,956 US20140018220A1 (en) 2012-07-11 2013-07-10 Method of producing a package

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120005121 EP2684803B1 (en) 2012-07-11 2012-07-11 Method for manufacturing a packaging

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EP2684803A1 EP2684803A1 (en) 2014-01-15
EP2684803B1 true EP2684803B1 (en) 2014-09-10

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2944615C (en) * 2014-02-28 2023-05-02 Cdf Corporation Semi-rigid shipping container with peel-reseal closure
CA2984001A1 (en) * 2016-10-25 2018-04-25 Allegiance Corporation Integrated tray and wrap system and method of making
WO2019219966A1 (en) * 2018-05-18 2019-11-21 Gea Food Solutions Germany Gmbh Unwinding a film roll in a packaging machine
US11679903B2 (en) * 2021-04-29 2023-06-20 Multivac Sepp Haggenmueller Se & Co. Kg Method and apparatus for forming a package with protected seal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE400250B (en) * 1974-11-08 1978-03-20 Akerlund & Rausing Ab TRAG-LIKE PACKAGING, PREFERABLY INTENDED FOR FOOD FAT E
US5163269A (en) * 1990-09-10 1992-11-17 Bryan Foods, Inc. Method for making reclosable package
ATE383119T1 (en) 2000-11-20 2008-01-15 Becton Dickinson Co CLEAR MEDICAL PRODUCT PACKAGING
WO2007018300A1 (en) * 2005-08-09 2007-02-15 Fujimura Kogyo Co., Ltd. Easily unsealable sealing container
DE102006017258B4 (en) 2006-04-12 2011-07-21 MULTIVAC Sepp Haggenmüller GmbH & Co. KG, 87787 Method for producing a packaging and packaging machine
GB0624343D0 (en) * 2006-12-06 2007-01-17 Pregis Rigid Packaging Ltd Container and method

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US20140018220A1 (en) 2014-01-16
EP2684803A1 (en) 2014-01-15

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