EP0581122B2 - Verfahren und Vorrichtung zum sauerstofffreien Verpacken von Ware - Google Patents
Verfahren und Vorrichtung zum sauerstofffreien Verpacken von Ware Download PDFInfo
- Publication number
- EP0581122B2 EP0581122B2 EP93111310A EP93111310A EP0581122B2 EP 0581122 B2 EP0581122 B2 EP 0581122B2 EP 93111310 A EP93111310 A EP 93111310A EP 93111310 A EP93111310 A EP 93111310A EP 0581122 B2 EP0581122 B2 EP 0581122B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- gas
- covering
- border
- distributing element
- 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.)
- Expired - Lifetime
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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
- B65B31/04—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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/043—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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles acting horizontally between an upper and a lower part of the container or wrapper, e.g. between container and lid
Definitions
- the invention relates to a method for oxygen-free packaging of goods in one open container at the top with a container edge delimiting the container at the top, in which the goods are filled into the container and the container interior with a Gas is flushed before the container is sealed gas-tight with a cover, the cover during the washing process a short distance above the Container edge is held and the gas through one of the container edge and the Cover formed gap is discharged from the interior of the container, as well as a Device for performing the method.
- a common packaging method is e.g. in evacuating the pack and then close. However, this is only with flexible packs feasible, since otherwise due to the forces arising from the vacuum Damage to the packaging is easily possible. This method is also included an enormous expenditure on equipment.
- a further development of the method mentioned is the evacuated pack back-gassed with inert, oxygen-free gas, and then sealed. This method can then also be used to pack product in rigid containers be used. Such a method is for example from AT-B-347 352 known. To avoid spraying the packaged goods during evacuation, in the method proposed in this document the level of the vacuum so limited that the boiling point of the goods to be packaged is not reached. For this a control device is provided, which is individual for each pack from the Temperature of the goods according to the associated vapor pressure curve the size of the Vacuum determined.
- the object of the present invention is a method of the type mentioned and to design an apparatus for performing the method so that a oxygen-free packaging of goods is carried out in a simple and economical manner, without the mentioned disadvantages of previous methods and devices occur.
- This object is achieved in that the gas through a in the Cover provided passage opening on a central point in the container arranged gas distribution element is inflated, the gas through the Gas distribution element deflected in the horizontal direction and radially in the Container interior is transferred, the gas released directly into the atmosphere is, the outflow cross sections for the gas are set so low that in Sufficient gas pressure is produced to keep the air out of the tank interior To displace the interior of the container without the need for evacuation devices, after the rinsing process, the cover is attached to the edge of the container and the Connection between the passage opening and the container interior interrupted becomes.
- the invention further relates to a device for carrying out the method an open container with a cover that can be closed gastight with a the top of the container border and one on the edge of the container retractable cover in the unlocked state of the container in a little Distance is positioned above the edge of the container.
- a gas distribution element is attached at a central point in the container, the cover in the unlocked state of the container with the Gas distribution element forms a gap while the cover in the closed State rests on the edge of the container and the gap between the gas distribution element and the cover is closed, vertically above the gas distribution element in the Cover a gas passage opening is arranged in the unlocked Condition of the container formed by the container edge and the cover Outflow cross sections for the gas immediately, without the interposition of Evacuation facilities that are open to the atmosphere and that Outflow cross sections for the gas are set so low that in A sufficient gas pressure can be produced to keep the air out of the container interior To displace container interior.
- the invention is particularly suitable for the oxygen-free packaging of multi-compartment menu trays, in which the individual subjects by Compartment partitions that converge in a central container area, are separated from each other.
- the gas distribution element is according to the invention located in the area where the compartment partitions converge. To this It is achieved that the individual fan volumes from one place can be flushed evenly with the gas.
- the gas distribution element is designed as a circular flat surface, which lies in a (imaginary) common horizontal plane with the edge of the container. This has the consequence that the distance of the cover from the Gas distribution element and the container edge is the same and when closing the Container cover on both the edge of the container and on the Gas distribution element rests.
- the cover is expediently on the gas distribution element sealed up. This is the passage opening provided for the gas supply in the Cover after the container has been closed by the gas distribution element covered so that no more atmospheric oxygen can get into the container from the outside.
- the gas distribution element cup-shaped, the cup rim with the container rim in one (imaginary) common horizontal plane. After closing the container the cover lies on the edge of the container and the rim of the cup, so that for the Gas supply provided passage opening in the cover only with the Interior of the cup is connected, which in turn due to the cover lying on the edge of the cup no longer with the interior of the container connected is. In this variant, too, there can no longer be atmospheric oxygen get into the outside of the container.
- the container can be closed gas-tight, is usually on the Applied a sealing surface on the container edge, on which the cover is attached.
- the gas distribution element is preferably in the radial direction by a Sealing area limited so that the cover on the outer edge of the Gas distribution element can be attached. So the entire container interior both towards the edge of the container and towards the opening in the cover sealed gastight.
- an inert gas in particular gaseous nitrogen, or a mixed gas, in particular an N 2 / CO 2 mixed gas or an N 2 / CO 2 / O 2 mixed gas with possible proportions of argon, helium or carbon monoxide, is expediently used used.
- the gaseous nitrogen displaces the oxygen from the container and creates an inert atmosphere inside the container, which increases the shelf life of the food.
- the invention enables a uniform gas purging of the container from one place out.
- oxygen-free packaging of Product reached in containers without expensive equipment, such as. Vacuum pumps and vacuum chambers would be required.
- the method according to the invention becomes oxygen-free within a short time Atmosphere created in the containers, which is also a packaging and Guaranteed storage of oxygen sensitive products. In this way can e.g. Food is permanently protected against oxidation processes, so that their durability is improved.
- the invention is particularly suitable for packaging finished food products in single or multi-compartment menu trays.
- a container 6 designed as a menu shell is shown as it used for example for packaging finished food products.
- the menu tray 6 has a gas distribution element 8 in the middle, which the gas flow coming from the gas passage opening 9 in the cover 2 in redirects the horizontal direction and radially evenly distributed to the container interior 4.5 issues.
- a gas supply line 3 is passed through the passage opening 9, over the gaseous nitrogen on the circular flat surface
- Gas distribution element 8 is inflated vertically from above.
- the cover 2 is in small distance, preferably 1 to 30 mm, above the gas distribution element 8 and the container edge 10 held.
- the Gas supply line 3 as a tube with a tube sheet and lateral openings on formed lower end of the tube.
- the gas supply line designed in this way works itself as a gas distribution element.
- the gas is passed through the tube sheet in a horizontal direction deflected and through the side openings radially into the container interior (4, 5) submitted.
- the area 5 of the container interior is covered by the filled goods, e.g. a Finished food product, filled out.
- the area 4 above is usually referred to as the container head space.
- the entire container interior 4, 5 can be arranged from a central location be flushed oxygen-free. This not only removes the air from the container head space 4 but also from the gaps formed by the goods in area 5 flushed oxygen-free.
- the path of the nitrogen gas is shown in the figure with arrows. After rinsing of the container interior 4, 5, the nitrogen gas is from the container edge 10th and the cover 2 formed gap released into the atmosphere.
- menu tray 6 is completely flushed with the nitrogen gas and free of oxygen, then the cover by means of the sealing device 1 on the container edge 10 and the gas distribution element 8 lowered.
- the menu tray 6 is by means of sealing surfaces on the Container edge 10 and the gas distribution element 8 are applied, sealed gas-tight. For this reason, no more atmospheric oxygen can enter the gas passage opening 9 either Container interior 4, 5 arrive.
- Figure 2 shows a plan view of a multi-compartment menu tray, the Compartment partitions 11 in a central area of the menu tray converge.
- the gas distribution element 8 is arranged in the central area and designed as a small, upwardly open cup with a cup rim on which a sealing surface 7 is applied.
- the nitrogen gas is blown into the cup and enters the individual areas evenly over the rim of the cup Fan volumes of the menu tray above.
- the nitrogen gas displaces the atmospheric oxygen from the fan volumes and is via the container edge 10 to the atmosphere submitted. In this way, the entire container volume of one Fumigation point can be flushed out of completely oxygen-free.
- the way of Nitrogen gas is again shown in the figure by arrows.
- the one not shown in the figure is located Cover on the sealing surfaces 7 of the gas distribution element 8 and the edge of the container 10 on.
- the gas passage opening for the nitrogen supply comes in the Cover to lie directly over the cup interior of the gas distribution element 8, the gas-tight from the interior of the container thanks to the cover on the edge of the cup is separated
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vacuum Packaging (AREA)
Description
- Figur 1:
- einen Querschnitt durch eine Menüschale mit zugeordneter Siegelvorrichtung
- Figur 2:
- eine Draufsicht auf eine mehrfächrige Menüschale.
Claims (6)
- Verfahren zum sauerstofffreien Verpacken von Ware in einen oben offenen Behälter mit einem den Behälter nach oben begrenzenden Behälterrand, bei dem die Ware in den Behälter eingefüllt wird und der Behälterinnenraum mit einem Gas gespült wird, bevor der Behälter mit einer Abdeckung gasdicht verschlossen wird, wobei die Abdeckung während des Spülvorgangs in geringem Abstand über dem Behälterrand gehalten wird und das Gas durch einen von dem Behälterrand und der Abdeckung gebildeten Spalt aus dem Behälterinneren abgeführt wird, dadurch gekennzeichnet, daß das Gas durch eine in der Abdeckung (2) vorgesehene Durchtrittsöffnung (9) auf ein an zentraler Stelle im Behälter (6) angeordnetes Gasverteilelement (8) aufgeblasen wird, daß das Gas durch das Gasverteilelement (8) in horizontale Richtung umgelenkt und radial in den Behälterinnenraum (4, 5) überführt wird, daß das Gas unmittelbar an die Atmosphäre abgegeben wird, und daß die Ausströmungsquerschnitte für das Gas so gering eingestellt werden, daß im Behälterinnenraum ein ausreichender Gasdruck hergestellt wird, um die Luft aus dem Behälterinnenraum zu verdrängen, ohne daß Evakuiereinrichtungen erforderlich sind, und daß nach dem Spülvorgang die Abdeckung (2) auf dem Behälterrand (10) befestigt und die Verbindung zwischen der Durchtrittsöffnung (9) und dem Behälterinnenraum (4, 5) unterbrochen wird.
- Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 mit einem oben offenen mit einer Abdeckung gasdicht verschließbaren Behälter mit einem den Behälter nach oben begrenzenden Behälterrand und einer auf den Behälterrand (10) absenkbaren Abdeckung (2), die im unverschlossenen Zustand des Behälters (6) in geringem Abstand über dem Behälterrand (10) positioniert ist, dadurch gekennzeichnet, daß an zentraler Stelle im Behälter (6) ein Gasverteilelement (8) angebracht ist, wobei die Abdeckung (2) im unverschlossenen Zustand des Behälters (6) mit dem Gasverteilelement (8) einen Spalt bildet, während die Abdeckung (2) im verschlossenen Zustand auf dem Behälterrand (10) aufliegt und der Spalt zwischen dem Gasverteilelement (8) und der Abdeckung (2) geschlossen ist, und lotrecht über dem Gasverteilelement (8) in der Abdeckung (2) eine Gasdurchtrittsöffnung (9) angeordnet ist, und daß die im unverschlossenen Zustand des Behälters (6) vom Behälterrand (10) und der Abdeckung (2) gebildeten Ausströmungsquerschnitte für das Gas unmittelbar, ohne Zwischenschaltung von Evakuiereinrichtungen, zur Atmosphäre hin offen sind, und daß die Ausströmungsquerschnitte für das Gas so gering eingestellt sind, daß im Behälterinnenraum ein ausreichender Gasdruck herstellbar ist, um die Luft aus dem Behälterinnenraum zu verdrängen.
- Vorrichtung nach Anspruch 2, wobei der Behälter als mehrfächrige Menüschale ausgebildet ist und die einzelnen Fächer durch Fächertrennwände, die in einem zentralen Behälterbereich zusammenlaufen, voneinander getrennt sind, dadurch gekennzeichnet, daß das Gasverteilelement (8) in dem Bereich angeordnet ist, wo die Fächertrennwände (11) zusammenlaufen.
- Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das Gasverteilelement (8) als kreisrunde ebene Fläche ausgebildet ist, die mit dem Behälterrand (10) in einer gemeinsamen horizontalen Ebene liegt.
- Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das Gasverteilelement (8) becherförmig ausgebildet ist, wobei der Becherrand mit dem Behälterrand (10) in einer gemeinsamen horizontalen Ebene liegt.
- Vorrichtung nach einem der Ansprüche 2 bis 5, wobei auf dem Behälterrand eine Siegelfläche zum Befestigen der Abdeckung aufgebracht ist, dadurch gekennzeichnet, daß das Gasverteilelement (8) in radialer Richtung durch eine Siegelfläche begrenzt ist
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4224919A DE4224919A1 (de) | 1992-07-28 | 1992-07-28 | Verfahren und Vorrichtung zum sauerstofffreien Verpacken von Ware |
DE4224919 | 1992-07-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0581122A1 EP0581122A1 (de) | 1994-02-02 |
EP0581122B1 EP0581122B1 (de) | 1996-03-20 |
EP0581122B2 true EP0581122B2 (de) | 1998-10-14 |
Family
ID=6464299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93111310A Expired - Lifetime EP0581122B2 (de) | 1992-07-28 | 1993-07-14 | Verfahren und Vorrichtung zum sauerstofffreien Verpacken von Ware |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0581122B2 (de) |
DE (2) | DE4224919A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357035A1 (de) | 2002-04-24 | 2003-10-29 | Werner Grabher | Verfahren und Vorrichtung zur Schutzgas-Spülung von Behältern |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3811594A (en) * | 1971-11-26 | 1974-05-21 | Jenos Inc | Unitary container for a food product |
DE2323409C2 (de) * | 1973-05-09 | 1975-01-30 | Multivac Sepp Haggenmueller Kg, 8941 Wolfertschwenden | Verfahren zum Verpacken von beim Sieden zum Spritzen neigendem Füllgut in Kunststorrverpackungsfolien und Vorrichtung zur Durchführung des Verfahrens |
-
1992
- 1992-07-28 DE DE4224919A patent/DE4224919A1/de not_active Withdrawn
-
1993
- 1993-07-14 DE DE59301940T patent/DE59301940D1/de not_active Expired - Fee Related
- 1993-07-14 EP EP93111310A patent/EP0581122B2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE4224919A1 (de) | 1994-02-03 |
EP0581122B1 (de) | 1996-03-20 |
DE59301940D1 (de) | 1996-04-25 |
EP0581122A1 (de) | 1994-02-02 |
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