EP1928641A1 - Apparatus and method for sealing packagings - Google Patents

Apparatus and method for sealing packagings

Info

Publication number
EP1928641A1
EP1928641A1 EP06791842A EP06791842A EP1928641A1 EP 1928641 A1 EP1928641 A1 EP 1928641A1 EP 06791842 A EP06791842 A EP 06791842A EP 06791842 A EP06791842 A EP 06791842A EP 1928641 A1 EP1928641 A1 EP 1928641A1
Authority
EP
European Patent Office
Prior art keywords
sealing
inert gas
packaging
package
packaging material
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.)
Withdrawn
Application number
EP06791842A
Other languages
German (de)
French (fr)
Inventor
Franz Garnreiter
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP1928641A1 publication Critical patent/EP1928641A1/en
Withdrawn legal-status Critical Current

Links

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
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/001—Joining in special atmospheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/001—Joining in special atmospheres
    • B29C66/0012—Joining in special atmospheres characterised by the type of environment
    • B29C66/0014—Gaseous environments
    • B29C66/00141—Protective gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/001—Joining in special atmospheres
    • B29C66/0012—Joining in special atmospheres characterised by the type of environment
    • B29C66/0014—Gaseous environments
    • B29C66/00145—Vacuum, e.g. partial vacuum

Definitions

  • the present invention relates to a device for sealing a package, which has a sealing device for producing a sealing seam by partially fusing the packaging material and a supply of protective gas, and a method for sealing a package in which a package that receives the product to be packaged and is filled with protective gas is provided with a sealing seam, wherein the packaging is closed by partial fusion of packaging material along the sealing seam.
  • Chamber machines For sealing packaging containing inert gas, z. B. so-called. Chamber machines known. Such chamber machines usually have a vacuum chamber which contains the packaging and from which the air is removed in order then to fill the protective gas with which the product is to be fumigated in the packaging. During the fumigation, the protective gas fills the entire vacuum chamber in conventional chamber machines.
  • a sealing device For sealing the packaging usually a sealing device is used, which has a heating device for producing a sealed seam. However, this must be considered as a potential ignition source and may be the cause of the formation of combustible gases. For example, due to too long sealing times, which occur for example as a result of an error in the timing of the heating device, flammable gases can be produced from the (plastic) material of the packaging and / or sealing device.
  • this object is achieved in that a further gas supply for inert gas and an inert gas outlet opening is provided, wherein the gas supply for inert gas and the inert gas outlet opening are arranged so that an inert gas flow between the two results, which flows around the sealed seam during the sealing process.
  • the circulation with inert gas reliably prevents contact of the protective gas with the sealing seam and the sealing device. This eliminates the risk that an explosive gas mixture is present at the sealing device.
  • the use of inert gas with an oxygen content of more than 21% is thus safely possible.
  • an inert gas for example, nitrogen is suitable.
  • the sealing device preferably has a heating device which releases thermal energy and introduces it into the packaging material in order to allow the partial melting of the packaging material along a so-called sealed seam.
  • the sealing device has a heating wire which is suitable for the purpose described above.
  • a laser is provided for introducing the energy for the partial fusion of the packaging material.
  • the partial fusion of the packaging material along a so-called. Sealing seam is thus also made possible and it is also necessary to flush the region of the sealed seam with inert gas, since the energy input by the laser could also serve as an ignition source and combustible gases can be discharged from the melting packaging material.
  • the stated object is achieved in that the sealed seam is flushed with an inert gas during the sealing process.
  • an embodiment of the invention is advantageous in which the energy for the partial fusion of the packaging material is introduced along a sealing seam by means of a laser and closes the packaging by partially fusing packaging material along the sealing seam.
  • flushing of the region of the sealing seam with inert gas during the sealing process is also expedient in this case in order to prevent the formation of an ignitable gas mixture in the region of the sealed seam.
  • the energy input by the laser could be considered as an ignition source, which is why the same precautions are advised as when using a heating wire.

Abstract

The invention relates to an apparatus for sealing a packaging, which comprises a sealing device for producing a sealing seam by partially melting the packaging material, and a feed for protective gas, characterized in that a further gas feed for inert gas and an inert gas outlet opening are provided, wherein the gas feed for inert gas and the inert gas outlet opening are arranged such that an inert gas flow results between them which flows around the sealing seam during the sealing operation. Furthermore, the invention relates to a method for sealing a packaging.

Description

Beschreibung description
Vorrichtung und Verfahren zum Versiegeln von VerpackungenApparatus and method for sealing packaging
Die vorliegende Erfindung betrifft eine Vorrichtung zum Versiegeln einer Verpackung, die eine Siegeleinrichtung zur Erzeugung einer Siegelnaht durch partielles Verschmelzen des Verpackungsmaterials und eine Zuführung für Schutzgas aufweist, sowie ein Verfahren zum Versiegeln einer Verpackung, bei dem eine Verpackung, die das zu verpackende Produkt aufnimmt und mit Schutzgas befüllt ist, mit einer Siegelnaht versehen wird, wobei die Verpackung durch partielles Verschmelzen von Verpackungsmaterial entlang der Siegelnaht verschlossen wird.The present invention relates to a device for sealing a package, which has a sealing device for producing a sealing seam by partially fusing the packaging material and a supply of protective gas, and a method for sealing a package in which a package that receives the product to be packaged and is filled with protective gas is provided with a sealing seam, wherein the packaging is closed by partial fusion of packaging material along the sealing seam.
Zum Versiegeln von Verpackungen, die Schutzgas enthalten, sind z. B. sog. Kammermaschinen bekannt. Derartige Kammermaschinen weisen in der Regel eine Vakuumkammer auf, die die Verpackung enthält und aus der die Luft entfernt wird, um dann das Schutzgas, mit dem das Produkt in der Verpackung begast werden soll, einzufüllen. Bei der Begasung füllt das Schutzgas in herkömmlichen Kammermaschinen die gesamte Vakuumkammer. Zum Versiegeln der Verpackung wird meist eine Siegeleinrichtung eingesetzt, die eine Heizeinrichtung zur Erzeugung einer Siegelnaht aufweist. Diese muss jedoch als potentielle Zündquelle betrachtet werden und kann Ursache sein für das Entstehen von brennbaren Gasen. Beispielsweise durch zu lange Versiegelungszeiten, die etwa durch einen Fehler in der Zeitsteuerung für die Heizeinrichtung auftreten, können aus dem (Kunststoff-)Material der Verpackung und/oder Siegeleinrichtung brennbare Gase entstehen. Für den Fall, dass ein sauerstoffhaltiges Gasgemisch als Schutzgas eingesetzt wird, können die brennbaren Gase mit dem Sauerstoff ein hochexplosives Gemisch bilden und sich am offenen heißen Siegeldraht der Heizeinrichtung entzünden. Diese Gefahr hat in der Vergangenheit dazu geführt, dass die Hersteller derartiger Vorrichtungen den Einsatz von Schutzgas mit einem einen festgelegten Wert überschreitenden Gehalt an Sauerstoff (in der Regel > 21%) für ihre Geräte nicht gestatteten. In der Praxis gibt es jedoch eine Reihe von Anwendungen, z. B. in der Lebensmittelindustrie, bei denen Schutzgas mit einem Sauerstoffgehalt von mehr als 21% mit besonderem Vorteil eingesetzt wird. Der Eintrag von Schutzgas in die Verpackung dient dabei der Haltbarmachung und/oder Verbesserung des Erscheinungsbildes des verpackten Produkts. Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde eine Vorrichtung und ein Verfahren zum Versiegeln von Verpackungen zur Verfügung zu stellen, die auch bei Verwendung eines Schutzgases mit einem Sauerstoffgehalt von mehr als 21% gefahrlos einsetzbar sind.For sealing packaging containing inert gas, z. B. so-called. Chamber machines known. Such chamber machines usually have a vacuum chamber which contains the packaging and from which the air is removed in order then to fill the protective gas with which the product is to be fumigated in the packaging. During the fumigation, the protective gas fills the entire vacuum chamber in conventional chamber machines. For sealing the packaging usually a sealing device is used, which has a heating device for producing a sealed seam. However, this must be considered as a potential ignition source and may be the cause of the formation of combustible gases. For example, due to too long sealing times, which occur for example as a result of an error in the timing of the heating device, flammable gases can be produced from the (plastic) material of the packaging and / or sealing device. In the event that an oxygen-containing gas mixture is used as a shielding gas, the flammable gases can form a highly explosive mixture with the oxygen and ignite the open hot wire of the heater. This danger has in the past led to the manufacturers of such devices not allowing the use of inert gas with a specified oxygen content (usually> 21%) for their devices. In practice, however, there are a number of applications, eg. B. in the food industry, in which inert gas is used with an oxygen content of more than 21% with particular advantage. The entry of inert gas into the packaging serves to preserve and / or improve the appearance of the packaged product. It is therefore an object of the present invention to provide an apparatus and a method for sealing packages which can be safely used even when using a protective gas having an oxygen content of more than 21%.
Vorrichtungsseitig wird die gestellte Aufgabe dadurch gelöst, dass eine weitere Gaszuführung für Inertgas sowie eine Inertgasaustrittsöffnung vorgesehen ist, wobei die Gaszuführung für Inertgas und die Inertgasaustrittsöffnung so angeordnet sind, dass eine Inertgasströmung zwischen beiden resultiert, die während des Versiegeins die Siegelnaht umspült. Die Umspülung mit Inertgas verhindert zuverlässig einen Kontakt des Schutzgases mit der Siegelnaht und der Siegeleinrichtung. Damit besteht keine Gefahr mehr, dass an der Siegeleinrichtung ein explosives Gasgemisch vorliegt. Der Einsatz von Schutzgas mit einem Sauerstoffgehalt von mehr als 21% ist damit gefahrlos möglich. Als Inertgas eignet sich beispielsweise Stickstoff.On the device side, this object is achieved in that a further gas supply for inert gas and an inert gas outlet opening is provided, wherein the gas supply for inert gas and the inert gas outlet opening are arranged so that an inert gas flow between the two results, which flows around the sealed seam during the sealing process. The circulation with inert gas reliably prevents contact of the protective gas with the sealing seam and the sealing device. This eliminates the risk that an explosive gas mixture is present at the sealing device. The use of inert gas with an oxygen content of more than 21% is thus safely possible. As an inert gas, for example, nitrogen is suitable.
Bevorzugt weist die Siegeleinrichtung eine Heizeinrichtung auf, die thermische Energie abgibt und in das Verpackungsmaterial einbringt, um das partielle Verschmelzen des Verpackungsmaterials entlang einer sog. Siegelnaht zu ermöglichen.The sealing device preferably has a heating device which releases thermal energy and introduces it into the packaging material in order to allow the partial melting of the packaging material along a so-called sealed seam.
Besonders bevorzugt weist die Siegeleinrichtung einen Heizdraht auf, der für den vorstehend beschriebenen Zweck geeignet ist.Particularly preferably, the sealing device has a heating wire which is suitable for the purpose described above.
Gemäß einer alternativen Ausgestaltung der Erfindung ist zum Einbringen der Energie für das partielle Verschmelzen des Verpackungsmaterials ein Laser vorgesehen. Das partielle Verschmelzen des Verpackungsmaterials entlang einer sog. Siegelnaht wird dadurch ebenfalls ermöglicht und es ist ebenso notwendig den Bereich der Siegelnaht mit Inertgas zu spülen, da der Energieeintrag durch den Laser ebenfalls als Zündquelle dienen könnte und brennbare Gase von dem schmelzenden Verpackungsmaterial abgegeben werden können.According to an alternative embodiment of the invention, a laser is provided for introducing the energy for the partial fusion of the packaging material. The partial fusion of the packaging material along a so-called. Sealing seam is thus also made possible and it is also necessary to flush the region of the sealed seam with inert gas, since the energy input by the laser could also serve as an ignition source and combustible gases can be discharged from the melting packaging material.
Verfahrensseitig wird die gestellte Aufgabe dadurch gelöst, dass die Siegelnaht während des Siegelvorgangs mit einem Inertgas umspült wird. Dadurch ergeben sich die vorstehend beschriebenen Vorteile. Mit besonderem Vorteil wird die Verpackung gegen eine Heizeinrichtung, insbesondere gegen einen Heizdraht, gedrückt, wobei die Verpackung durch Verschmelzen von aufeinander gedrückten Verpackungsteilen verschlossen wird.In terms of the method, the stated object is achieved in that the sealed seam is flushed with an inert gas during the sealing process. This results in the advantages described above. With particular advantage, the package is pressed against a heating device, in particular against a heating wire, wherein the packaging is closed by fusing of pressed together packaging parts.
Alternativ ist eine Ausgestaltung der Erfindung vorteilhaft, bei der die Energie für das partielle Verschmelzen des Verpackungsmaterials mithilfe eines Lasers entlang einer Siegelnaht eingebracht wird und die Verpackung durch partielles Verschmelzen von Verpackungsmaterial entlang der Siegelnaht verschließt. Wie vorstehend beschrieben ist auch hier ein Spülen des Bereichs der Siegelnaht mit Inertgas während des Versiegelungsvorgangs zweckmäßig um die Bildung eines zündfähigen Gasgemisches im Bereich der Siegelnaht zu verhindern. Der Energieeintrag durch den Laser könnte als Zündquelle in Betracht kommen, weshalb die gleichen Vorsichtsmaßnahmen angeraten sind wie bei der Verwendung eines Heizdrahtes. Alternatively, an embodiment of the invention is advantageous in which the energy for the partial fusion of the packaging material is introduced along a sealing seam by means of a laser and closes the packaging by partially fusing packaging material along the sealing seam. As described above, flushing of the region of the sealing seam with inert gas during the sealing process is also expedient in this case in order to prevent the formation of an ignitable gas mixture in the region of the sealed seam. The energy input by the laser could be considered as an ignition source, which is why the same precautions are advised as when using a heating wire.

Claims

Patentansprüche claims
1. Vorrichtung zum Versiegeln einer Verpackung, die eine Siegeleinrichtung zur Erzeugung einer Siegelnaht durch partielles Verschmelzen des Verpackungsmaterials und eine Zuführung für Schutzgas aufweist, dadurch gekennzeichnet, dass eine weitere Gaszuführung für Inertgas sowie eine Inertgasaustrittsöffnung vorgesehen ist, wobei die Gaszuführung für Inertgas und die Inertgasaustrittsöffnung so angeordnet sind, dass eine Inertgasströmung zwischen beiden resultiert, die während des Versiegeins die Siegelnaht umspült.1. A device for sealing a package having a sealing device for producing a sealed seam by partially fusing the packaging material and a supply of inert gas, characterized in that a further gas supply for inert gas and an inert gas outlet opening is provided, wherein the gas supply for inert gas and the inert gas outlet are arranged so that an inert gas flow between the two results, which flows around the sealing seam during sealing.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Siegeleinrichtung eine Heizeinrichtung aufweist.2. Apparatus according to claim 1, characterized in that the sealing device has a heating device.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Siegeleinrichtung einen Heizdraht aufweist.3. Apparatus according to claim 1 or 2, characterized in that the sealing device comprises a heating wire.
4. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass zum Einbringen der Energie für das partielle Verschmelzen der Verpackungsmaterials ein Laser vorgesehen ist.4. The device according to claim 1, characterized in that for introducing the energy for the partial fusion of the packaging material, a laser is provided.
5. Verfahren zum Versiegeln einer Verpackung, bei dem eine Verpackung, die das zu verpackende Produkt aufnimmt und mit Schutzgas befüllt ist, mit einer Siegelnaht versehen wird, wobei die Verpackung durch partielles Verschmelzen von Verpackungsmaterial entlang der Siegelnaht verschlossen wird, dadurch gekennzeichnet, dass die Siegelnaht während des Siegelvorgangs mit einem Inertgas umspült wird.A method of sealing a package in which a package receiving the product to be packaged and filled with inert gas is provided with a sealed seam, the package being closed by partially fusing packaging material along the sealed seam, characterized in that the package Sealing seam is lapped during the sealing process with an inert gas.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Verpackung gegen eine Heizeinrichtung, insbesondere gegen einen Heizdraht, gedrückt wird, wobei die Verpackung durch Verschmelzen von aufeinander gedrückten Verpackungsteilen verschlossen wird.6. The method according to claim 5, characterized in that the package is pressed against a heating device, in particular against a heating wire, wherein the packaging is closed by fusing of pressed together packaging parts.
7. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Energie für das partielle Verschmelzen des Verpackungsmaterials mithilfe eines Lasers entlang einer Siegelnaht eingebracht wird und die Verpackung durch partielles Verschmelzen von Verpackungsmaterial entlang der Siegelnaht verschließt. 7. The method according to claim 5, characterized in that the energy for the partial fusion of the packaging material is introduced by means of a laser along a sealed seam and closes the packaging by partially fusing packaging material along the sealed seam.
EP06791842A 2005-09-14 2006-09-05 Apparatus and method for sealing packagings Withdrawn EP1928641A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005043779A DE102005043779A1 (en) 2005-09-14 2005-09-14 Apparatus and method for sealing packaging
PCT/EP2006/008646 WO2007031215A1 (en) 2005-09-14 2006-09-05 Apparatus and method for sealing packagings

Publications (1)

Publication Number Publication Date
EP1928641A1 true EP1928641A1 (en) 2008-06-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791842A Withdrawn EP1928641A1 (en) 2005-09-14 2006-09-05 Apparatus and method for sealing packagings

Country Status (4)

Country Link
US (1) US7918070B2 (en)
EP (1) EP1928641A1 (en)
DE (1) DE102005043779A1 (en)
WO (1) WO2007031215A1 (en)

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IT1394613B1 (en) * 2009-01-21 2012-07-05 Castrataro SYSTEM AND MEANS FOR AUTOMATIC PACKAGING OF FOOD TRAYS ALSO WITH MODIFIED ATMOSPHERE.

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US7918070B2 (en) 2011-04-05
US20090229223A1 (en) 2009-09-17
WO2007031215A1 (en) 2007-03-22

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