EP0946391B1 - Verfahren zur Herstellung einer sauerstoffdichten Verpackung, Vorrichtung zur Durchführung eines derartigen Verfahrens - Google Patents
Verfahren zur Herstellung einer sauerstoffdichten Verpackung, Vorrichtung zur Durchführung eines derartigen Verfahrens Download PDFInfo
- Publication number
- EP0946391B1 EP0946391B1 EP97954460A EP97954460A EP0946391B1 EP 0946391 B1 EP0946391 B1 EP 0946391B1 EP 97954460 A EP97954460 A EP 97954460A EP 97954460 A EP97954460 A EP 97954460A EP 0946391 B1 EP0946391 B1 EP 0946391B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composite film
- plastic composite
- cardboard
- cardboard blanks
- marginal
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
- B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
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- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
- B65D5/2014—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form the central panel having a non rectangular shape
- B65D5/2033—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form the central panel having a non rectangular shape polygonal having more than four sides, e.g. hexagonal, octogonal
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- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
- B65D5/24—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
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- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
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- 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
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- 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
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
- B31B2120/404—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box using vacuum or pressure means to force the liner against the wall
Definitions
- the invention relates to a method for the production of a food packaging according to claim 1 and an apparatus for performing such Method according to the preamble of claim 13.
- the conventional ones made of PVC, polyester or polyesterol Manufactured shells are produced in terms of production technology due to so-called "vacuum forming and filling systems" a very uneven thickness distribution due to the available output strength in the known thermoplastic molding process.
- the at barrier layer layer used in the manufacture of the plastic shells preferably made of polyvinyl alcohol (EVOH), which ensures the required oxygen barrier and with a previously described application of so-called Rigid films connected between the carrier film and the sealing layer is embedded, an essential shows poorer molding result, i.e. low residual wall thickness also has this EVOH layer.
- EVOH polyvinyl alcohol
- the plastic carrier material of the shells prefferably consists of Polyvinyl alcohol.
- the oxygen barrier layer usually consists of Polyvinyl alcohol.
- Such a shell is for example in the EP 0196799. It also contains a procedure discloses a variety of individual, separate Trays in a filling or sealing station be introduced.
- the bowls become successive lined with a thin layer of plastic, before being filled with food and a sealing station are fed.
- a cover film is placed on the dishes filled with food sealed.
- the support material essentially wood sanding or foamed Plastic is.
- the bowl itself in be substantially porous so that the plastic film for Lining the shell due to a below the Shell generated vacuum can be applied.
- the Advantage of these packaging systems with such trays is that the packaging device is clear can be built, including a modular Compilation of the device is possible.
- the forms the preamble of claim 1 are erected cardboard blanks from one Donors in cycles, but occasionally one Forming station fed to a packaging system.
- the packaging geometry is such that two mutually parallel edge flange segments Edge flange segments of the intermediate Border the wall segments so that a butt joint along parallel butt lines
- the task is a process for the oxygen-tight packaging of food under With the help of a food packaging of the above Kind in such a way that conventional modular packaging systems with a higher cycle rate and can be operated even more economically.
- Another object of the invention is still to be seen in the device for performing the above mentioned method of the first packaging according to the invention to adapt so that the packaging systems are susceptible to faults minimized even with the highest number of cycles is.
- the method results in particular Advantages of largely simplifying one Packaging system, since no separate Deep drawing stamp station or special preheating system are more needed. Nevertheless, the required throughput distance according to the invention can be used to accommodate the filling station and thereby a space-saving version of such Packing system can be created.
- the overall system can either be considerably shorter or the filling section can, if necessary, be used much better, which in some cases the filling process is visibly easier.
- the process has particular advantages if one Packaging structure is selected according to claims 8 to 12. Then the packaging which per se is not the subject of the invention as supporting base with a thin plastic composite film lined cardboard blank that automatically erectable and its interior to the Cut edges is glued.
- the cardboard blank shows also an edge flange with individual edge flange segments on which the cover film is then attached.
- the edge flange is outside according to the invention shaped so that the edge flange segments in close the seal position. For this have the individual edge flange segments with intersection lines on which the angular position is then based of the edge flange can be determined.
- an oxygen barrier layer preferably made of polyvinyl alcohol
- a sealing layer preferably made of peelable polyethylene
- an adhesive layer preferably made of modified polyethylene, especially one Copolymer of ethylene with 6% methacrylic acid, which is partial (50%) are neutralized with Na or zinc ions (Surlyn A) on
- a flexible composite is used, whose oxygen permeability is determined in advance can be and also in the embedded state is not changed. Therefore, one can be significantly thinner Held EVOH layer in a flexible composite embedded is used.
- the method according to the invention can be used create a container that when entering in the vacuuming or sealing station except for one side, namely the upper side, oxygen-tight is.
- the plastic-lined Cardboard cutting also in the area of specially designed edge flanges has particularly high dimensional stability, this edge flange between the seals of the closed sealing tool be safely recorded, so that according to the invention only the inner cavity of the molded one Carrier shell must be evacuated.
- the power consumption the packaging system for generating the evacuation the cycle number of the packaging system is reduced can be significantly increased.
- the power consumption of the packaging system especially in the area of the forming station reduced because the time required to warm up a common hard film of approx. 500 to 1000 ⁇ m (PVC, Polysterol or polyester) can be significantly reduced can.
- the required inherent stability of the container is described according to the invention by using the Carton cut achieved, especially if the Cover film on the plastic film that the cardboard blank lines, is attached.
- the food packaging that can be produced using the process have increased dimensional stability and they are highly torsionally stable.
- Fig. 1 is the side view of the packaging system shown, consisting essentially of four stations exists, namely a molding station (FS), a filling section (BS), the sealing and vacuuming station (VS) and a preferably two-stage Separation system (80, 81), the latter also can be designed in one stage.
- Transporting the in Row of precisely arranged cardboard blanks to the individual stations is preferably carried out via a Transport chain or when used on a so-called "Tray-Sealer” via a specially trained water sports band with recording rooms for the side by side Carton blanks.
- a Transport chain for relieving the transport chain 48 so-called Support belts 50 below the conveyor chain 48 be additionally provided.
- erected cardboard blanks 10 fall clocked with the support of a proven, pneumatically working Device 9 on a ribbon.
- the erected carton blank is clock-controlled under a stamp device with a stamp 11 transported where the edge flange 52 in particular the Edge flange segments 54 before inserting the individual Cardboard blanks 10 broken into the forming station FS becomes.
- the stamp 11 is designed such that the Edge flange 52 in the depending on the fermentation cut at the ends the edge flange segments 54 possible sealing position is broken with a corresponding inclination.
- edge flange segments 54 becomes the cardboard blanks transported to a transfer position from which from them is controlled by suction air support a special transport stamp 13 in the open Recording form of the forming station FS can be placed. At the Tray sealer system will cut the carton into appropriate Recording rooms of the transport chain 48 set.
- the breaking of the edge flange segments 54 can only be carried out in the forming station FS one procedural step can be saved. Indeed are the constructive requirements for such Forming station considerably higher. In this case, however be ensured that the edge flange segments 54 are broken only shortly before they are sealed.
- the transport chain 48 transports the rows carton blanks arranged closely together 10 then clocked into the forming station FS.
- the forming station FS can also be designed, for example a station operating according to the skin system Forming, filling and closing system according to Multivac CD6000.
- the rows are narrow stacked cardboard blanks arranged next to each other are in the forming station, the begins actual forming or lining process of the Cardboard blank 10 using plastic composite film 34.
- plastic composite film 34 is provided by an endless roll 33, which over the infeed line of the packaging system on a Bracket is attached via pulleys on the in cardboard blanks arranged in rows in the admission forms 10 essentially parallel to the transport chain drawn.
- the transport chain leads 48 the rows arranged in the reception rooms of the transport chain resting erect Cardboard blanks 10 under a forming station FS, its working principle for lining the inner surface the cardboard blanks 10 with the plastic composite film 34 on a form, fill and seal machine used iso-pack system from MULTIVAC equivalent.
- How the vacuuming and sealing station works VS corresponds to conventional systems, e.g. the Multivac and is described in detail in FIG. 7.
- Fig. 2 rows of cardboard blanks 10 are shown in perspective, an optionally provided recessed grip GM can also be seen, for which a special edge flange side section 24B can be provided. Furthermore, overlap sections 55 between adjacent wall sections of the carrier shells can be seen. However, there is no overlap in the area of the edge flange 52, so that a coherent, stepless sealing surface can be created.
- the tool of the forming station FS which according to the so-called Skin process works, consists of a sub-mold 16 and an upper mold 18, which corresponds to the 3 shown in Fig. 3 clocked apart and moved together become.
- the lower mold 16 preferably a profile for a positive fit the cardboard blanks 10 so that the edge flanges 52 the Cardboard blanks 10 are supported in a sealed manner.
- the Upper form 18 is also designed so that a Heater 72 can be added.
- At 73 and 73A are recesses in the upper and lower part 16, 18 shown, which is designed according to the recessed grips GM are.
- FIG. 4 is the front view of the molding station FS shown, the lower mold 16 web-like inserts 66th has whose shape has a cross-section of the series arranged and erected carton blanks 10 adapted is.
- the close to each other Edge flanges of adjacent cardboard blanks 10 these ridge-shaped inserts, so that when the tool halves are closed 16 and 18 the individual cardboard blanks additionally through the intended mold inserts 58, their surface contours fits the shape of the individual carton blanks corresponds, are positively supported.
- the molding station FS is clocked opened, which is now through the plastic composite film single cardboard blanks connected together released and for filling with the transport chain 48 to be carried on.
- Fig. 5 is that due to the close to each other Cardboard blanks 10 formed, with plastic composite film 34 lined and coherent on the inside Carton blank row shown like this the forming station FS leaves. As can also be seen, covered the plastic composite film 34 also the grip hole GM in the flange area 24B.
- the plastic composite film 34 has an oxygen barrier layer 36, preferably made of polyvinyl alcohol (EVOH) and a sealing layer 38, preferably made of peelable polyethylene and an adhesive layer 37, preferably made of modified polyethylene. It has It has been shown that the inner coating of the food packaging forming carrier material extremely thin can be executed.
- the film thickness is preferably in the area of the remaining wall thicknesses in the base radii between 25 and 30 ⁇ m.
- the plastic composite film 34 can also are structured and controlled in their behavior, that after using the packaging from the cardboard carrier can be replaced so that for disposal or recycling pure components are available.
- the finger hole recess GM also serves according to the invention.
- the contiguous cardboard blanks 10 After leaving the forming station FS, the contiguous cardboard blanks 10 the filling station along the filling line BS, meanwhile they are filled with the food to be packaged.
- the transport of the connected cardboard blanks 10 is done through the shared facility at intervals.
- Run from the filling line BS the filled cardboard blanks 10 into the vacuum and sealing station VS, in which they from the lower part 16 by means of appropriate mold inserts be included (see Fig. 6).
- the Lower mold 16 preferably has a profile for complete Inclusion of the cardboard blanks designed according to the invention 10 such that the edge flanges of the shells can be supported so sealed.
- the top is designed so that the line pattern Heating plate 74 movable in the vertical direction can record.
- the line pattern is designed so that it covers areas defined at which a seal of the cardboard blank edge flange done with the cover film 20 should.
- the 6 is intended to function as such a vacuum or sealing tool in the invention Show effort. It can also be used for this process already known and proven conventional system be used with minor changes.
- the 6 shows the lower mold 16 with the web-like inserts 66, the shape of which is a cross section of between two adjacent flanges of the cardboard blanks 10 forming saddle strips is adapted, so that when the tool halves are closed 16 and 18 the connected cardboard blanks 10 through the intended mold insert 58, its surface contour corresponds to the shape of the other cardboard blank, are positively supported.
- At 70 are Designated seals against which the edge flanges or the saddle bars of the connected cardboard blanks 10 in the retracted state of the tool 16 and 18 so that the individual cardboard blanks are vacuumed, in this state the food already included, can be carried out.
- heating devices are referred to, which are accommodated in accordance with a pattern aligned with the edge webs in the upper mold half 18, so that when the mold halves 16 and 18 are moved together, the cover film 20 is welded to the relevant edge flanges of the individual containers in such a way that a circumferential one continuous sealing surface comes about.
- a commercially available vacuum station can be used, in which, after evacuation, gassing, for example with the usual gas mixture N 2 / CO 2, usually in a ratio of 70:30, can also be used.
- the heating plate 74 located in the upper part of the tool 18 is preferably designed with relief-shaped sealing webs, the cover film being sealed by the action of heat and pressure with the sealing coating of the peripheral edge flange and the resulting saddle webs of the connected cardboard blanks.
- Fig. 7 it is shown how now with food filled, sealed and coherent cardboard blanks 10, the vacuum and sealing station have left.
- the working width of the device is self-evident not limited. However, it has been shown that the widths are at least about 420 mm should be based on the economics of the device to maintain a particularly high level.
- the cover film 20 is preferably also made of a Plastic composite film 34 is produced, which has an oxygen barrier layer contains which on the the cardboard blank facing side of a peelable plastic layer preferably made of modified polyethylene is covered. This layer then forms with the plastic composite film 34 over sealing webs of the edge flanges the sealed seams.
- the film layer facing the heating or sealing element 72 is preferably of a film quality particularly high melting point or a heat barrier Layer formed, which preferably contains polyethylene and which lies over the oxygen barrier layer in order to Seal with the mold base for adequate Shape and surface stability during the sealing process to care. Because the sealing layers of both the cardboard blank surface as well as the cover film 20 preferably “peelable" are coordinated when sealing these two sealing layers one fixed connection that largely without destroying the Korton tailored film 34 can be peeled off by hand (see Fig. 9).
- the this particular inventive design of the edge flange may not have, due to tolerances when fixing the cardboard blanks in the process or due to manufacturing-related fluctuations the cardboard blank design a uniform width and therefore not achieve sufficient secure sealing surface become.
- the separation of the oxygen-tight film inner component from the actual stability-giving Cardboard cutting is another essential point of the Invention (see Fig. 9).
- the inside of the Cardboard blank lining plastic composite film is with the fibers of the inner walls and the bottom of the Cardboard blank connected heat-laminated.
- the plastic is made Composite film due to the corresponding pressure difference the cardboard blank inner surfaces pressed and can in the fibers of this inner surface penetrate.
- the cover film 20 is over the peripheral edge flanges and the saddle bars of the rows connected Cardboard blanks as described in the procedure are coated with a sealing layer, after evacuation or gassing in the sealing station firmly connected to the lower part of the packs.
- the intended semi-oval punching (GM) of the rear edge flange lying in the transport direction and the corresponding design of the sealing tool in this area creates the possibility of a so-called Grip tab that does not come from at this point formed with a cover film sealed with a lining film the entire grip hole GM To remove the composite from the then pure cardboard blank, which is then compostable by type.
- To the area of application of food packaging also includes peeling off the cover film from the sealing bars to open the pack to its contents easy to remove without tools. This can through a special design of the sealing tool carried out in the sealing station without major conversion work become.
- the consumer releases the cover film as far from the sealing surfaces until it is the filling material can be easily removed (see Fig. 10).
- the plastic composite film and the not completely peeled off lid film are then together over the handle tab from the actual Cardboard cut to the intended one Handle hole recess detached. This makes the variety Separation takes place and the individual materials can be used for further processing.
- the invention thus enables food packaging in the form of a stable cardboard blank with an all-round peripheral flange that is specially trained and about by means of a preferably oxygen-blocking cover film the container is hermetically sealed.
- the carrier shell consists of cardboard and carries on the inside in the area of the edge flanges Fold an oxygen-saving plastic film is suitable for sealing with the cover film.
- Cardboard blanks are used to increase stability via connecting webs with the edge flanges of the container collapse after being lined up integrally connected so that the container rows next to each other and clocked synchronously Go through packaging lines and sealed together become.
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- Mechanical Engineering (AREA)
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- Vacuum Packaging (AREA)
- Cartons (AREA)
Description
wobei ebenfalls eine gegebenenfalls vorgesehene Griffmulde GM zu erkennen ist, für die ein besonderer Randflanschseitenabschnitt 24B vorgesehen werden kann. Ferner sind Überlappungsabschnitte 55 zwischen benachtbarten Wandabschnittn der Trägerschalen erkennbar. Allerdings findet eine Überlappung nicht im Bereich des Randflansches 52 statt, so daß eine zusammenhängende, stufenlose Siegelfläche geschaffen werden kann.
Claims (20)
- Verfahren zur Herstellung einer sauerstoffdichten Verpackung von Lebensmitteln in einer Lebensmittelverpackung, die eine Trägerschale mit umlaufenden Randflansch aufweist, welche innenseitig mit einer Kunststoffverbundfolie ausgekleidet ist und der Trägerschaleninnenraum mittels einer vorzugsweise sauerstoffsperrenden Deckelfolie hermetisch abgeschlossen wird, wobei die Trägerschale ein Kartonzuschnitt (10) mit einem Bodenabschnitt und mehreren Wandabschnitten ist, und der sich an die Wandabschnitte anschließende Randflansch (52) einzelne Randflanschsegmente (54) zur Befestigung der Deckelfolie (20) aufweist, wobei jeder Randabschnitt (52) der Trägerschale ein Randflanschsegment aufweist und außenseitig so geformt ist, daß die Randflanschsegmente (54) in der Siegelstellung über Gehrungsschnittlinien bündig aneinanderschließen, und wobei zur Stabilisierung die in die Randflanschsegmente (54) übergehenden Wandsegmente der Trägerschale teilweise überlappen und mittels Überlappungsabschnitten (55) lagefixiert sind, wobei bei dem Verfahren Kartonzuschnitte taktweise ' eine Formstation (FS) durchlaufen, der zur Vervollständigung der Verpackung eine Befüllungsstrecke (BS) und eine Vakuumierungs- und Versiegelungsstation (VS) nachgeschaltet ist, dadurch gekennzeichnet, daß die aufgerichteten Kartonzuschnitte (10) reihenweise in der Formstation (FS) angeordnet werden, und die Randlanschsegmente (54) des Randflansches (52) vor dem Einsetzen in die Formstation gebrochen werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Kartonzuschnitte (10) mit aufgerichteten Randflanschen (52) der Formstation (FS) reihenweise zugeführt werden.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Randflansche (52) in der Formstation (FS) in ihre Siegelstellung gedrückt werden, so daß die Randflansche (52) der benachbarten Kartonzuschnitte (10) eng aneinanderliegen.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Auskleidung der Innenfläche der Kartonzuschnitte (10) reihenweise und mittels einer die gesamte Siegelfläche der Randflansche (52) abdeckenden Kunststoffverbundfolie (34) erfolgt, wobei im Anschluß an die Einformung der Kunststoffverbundfolie (34) der Transport taktgleich durch eine Transportkette (48) zur Befüllstation (BS) erfolgt.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Kunststoffverbundfolie (34) durch Herstellung einer Druckdifferenz in den Kartonzuschnitt (10) eingeformt wird und fest mit den Randflanschen (52) und der Innenseite des Kartonzuschnitts (10) wärmekaschiert wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die durch die auskleidende Kunststoffverbundfolie (34) zusammenhängenden Kartonzuschnitte (10) in der Vakuumierungs- und Versiegelungsstation (VS) mit einer Deckelfolie (20) über den Randflansch (52) vorzugsweise durchgehend verschweißt werden.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Deckelfolie (20) mit der Kunststoffverbundfolie (34) im Bereich einer vom nachlaufenden Randflansch der Kartonzuschnitte ausgebildeten Greifaussparung (GM) ausgehend von der Innenkante des Randflansches (24) nur über einen Teilbereich (TB) der sich in die Greifaussparung (GM) hineinstreckenden Überlappung verschweißt ist.
- Verfahren nach einem der Ansprüche 1 bis 7 dadurch gekennzeichnet, daß die Kunststoffverbundfolie (34) eine Sauerstoffsperrschicht (36) vorzugsweise aus Polyvinylalkohol und eine Siegelschicht (38) vorzugsweise aus peelbarem Polyethylen sowie eine Haftschicht (37), vorzugsweise aus einem modifizierten Polyethylen, insbesondere einem Copolymer von Ethylen mit 6% Methacrylsäure, die partiell (50%) mit Na- oder Zinkionen neutralisiert sind (Surlyn A), aufweist.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Deckelfolie (20) von einer Kunststoffverbundfolie (34) gebildet ist, die auf der dem Kartonzuschnitt (10) zugewandten Seite eine vorzugsweise peelbare Kunststoffschicht, vorzugsweise aus Polyethylen und darüberliegend zumindest eine sauerstoffsperrende Schicht, vorzugsweise aus Polyvinylalkohol und einer abdeckenden Hitzesperrschicht, beispielsweise aus Polypropylen, aufweist.
- Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Kunststoffverbundfolie (34) je nach Formtiefe eine Ausgangsstärke im Bereich zwischen 100 und 150 µm hat.
- Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Kunststoffverbundfolie (34), die den Kartonzuschnitt (10) auskleidet, mit der Kunststoffverbundfolie identisch ist, die den Randflansch (24) abdeckt.
- Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der Kartonzuschnitt (10) aus einem recycelbaren, vorzugsweise zweilagigen Karton besteht.
- Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 12, mit einer Formstation, in der aufgerichtete Kartonzuschnitte, die einen Bodenabschnitt und mehrere Wandabschnitte sowie einen sich an die Wandabschnitte anschließenden Randflansch aus einzelnen Randflanschsegmenten (54) hat, mit einer Kunststoffolie ausgekleidet werden, einer Einrichtung zum getakteten Transport der mit Kunststoffverbundfolie (34) innenseitig mittels einer Auskleidefolie ausgekleideten Kartonzuschnitten durch eine Befüllungsstrecke (BS), einer nachgeschalteten Vakuumierungs- und Versiegelungsstation (VS) und einer Vereinzelungsstation (80, 81), dadurch gekennzeichnet, daß der Formstation (FS) eine Einrichtung vorgeschaltet ist, mit der die Randflanschsegmente (54) vor dem Einsetzen in die Formstation (FS) gebrochen werden, und dass zumindest zwei seitlich nebeneinanderliegende und über Randflansche (52) zusammenhängende Kartonzuschnitte (10) in der Befüllungsstrecke (BS) taktgleich über eine Transporteinrichtung der Vakuumierungs- und Versiegelungsstation (VS) zuführbar sind.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß für die aneinanderliegenden Randflansche (54) zur Verhinderung einer unkontrollierten Durchbiegung zusätzliche Stütz- und Führungseinrichtungen, vorzugsweise in Form von vertikal ausgerichteten Stegen vorgesehen sind, die vorzugsweise höhenmäßig ausrichtbar sind.
- Vorrichtung nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, daß nach Übernahme der zusammenhängenden Kartonzuschnitte (10) durch die Transportkette (48) die zur Bildung der Kunststoffverbundfolienauskleidung geeignete Kunststoffverbundfolie (34) von einer Endlos-Spenderrolle (33), welche im wesentlichen senkrecht über der Einlaufstrecke angeordnet ist, durch eine Umlenkrolle über die über benachbarte Randflansche (52) bzw. sattelförmigen Auflagen zusammenhängenden Kartonzuschnitte (40) gezogen wird.
- Vorrichtung nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, daß die über die Randflansche (52) und Sattelstege (42) der Kartonzuschnitte (10) gezogene Kunststoffverbundfolie (34) durch Siegelstege (74) der Formstation (FS) mit den Randflanschen (52) bzw. den sattelförmigen Auflage der zusammenhängenden Kartonzuschnitte (40) taktgesteuert verschweißt bzw. versiegelt wird.
- Vorrichtung nach einem der Ansprüche 13 bis 16, dadurch gekennzeichnet, daß die so mit den Randflanschen (54) und Sattelstegen (42) verbundene Kunststoffverbundfolie (34) endlos durch die taktgesteuerte Vorwärtsbewegung der Transporteinrichtung durch die Formstation (FS) transportiert wird.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die Kunststoffverbundfolie (34) durch eine Heizplatte (72) der Formstation (FS) plastisch gemacht und so erwärmt mittels Druckdifferenz in die Kartonzuschnitte gezogen wird.
- Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß synchron mit der Transporteinrichtung ein Stützband (50) umläuft, mit dem die zusammnehängenden Kartonzuschnitte insbesondere in und nach der Befüllungsstrecke (BS) von unten gestützt werden.
- Vorrichtung nach einem der Ansprüche 13 bis 19, dadurch gekennzeichnet, daß die Vakuumierungs- und Versiegelungsstation (VS) ein Werkzeugunterteil (16) zur formgenauen Aufnahme der Kartonzuschnitte und ein beheizbares Werkzeugoberteil (18) aufweist, mit dem die von der Rolle (22) endlos in das geöffnete Werkzeug einlaufende Deckelfolie (20) gegen die Sattelstege (42) bzw. die umlaufenden Randflansche drückbar und unter Wärmeeinwirkung mit der Kunststoffverbundfolie (34) verschweißbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19654230 | 1996-12-23 | ||
DE19654230A DE19654230A1 (de) | 1996-12-23 | 1996-12-23 | Lebensmittelverpackung, Verfahren zur Herstellung einer sauerstoffdichten Verpackung, Vorrichtung zur Durchführung eines derartigen Verfahrens und dabei verwendete zusammenhängende Kartonschnitte |
PCT/EP1997/007256 WO1998028195A1 (de) | 1996-12-23 | 1997-12-23 | Sauerstoffdichte lebensmittelverpackung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0946391A1 EP0946391A1 (de) | 1999-10-06 |
EP0946391B1 true EP0946391B1 (de) | 2003-06-18 |
Family
ID=7816141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97954460A Expired - Lifetime EP0946391B1 (de) | 1996-12-23 | 1997-12-23 | Verfahren zur Herstellung einer sauerstoffdichten Verpackung, Vorrichtung zur Durchführung eines derartigen Verfahrens |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0946391B1 (de) |
AT (1) | ATE243139T1 (de) |
DE (2) | DE19654230A1 (de) |
WO (1) | WO1998028195A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3733531B1 (de) | 2019-05-03 | 2021-07-14 | Ulma Packaging Technological Center, S.Coop. | Verfahren und maschine zur verpackung von produkten |
WO2021219937A1 (en) * | 2020-04-27 | 2021-11-04 | Jospak Oy | Product package and method for manufacturing the same as well as product package blank |
RU2806170C2 (ru) * | 2019-05-03 | 2023-10-27 | Ульма Пэкэджин, С.Кооп. | Способ и машина для упаковки продуктов |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19828381A1 (de) | 1998-06-25 | 1999-12-30 | Jochen Dietrich | Lebensmittelverpackung sowie Verfahren, Zuschnitt und Vorrichtung zu deren Herstellung |
DE19955222A1 (de) * | 1999-11-17 | 2001-05-31 | Wiesenhof Pilzland Vertriebsgm | Verfahren und Vorrichtung zum Verarbeiten und Verpacken von Pilzen o. dgl. |
DE10111232A1 (de) * | 2001-03-08 | 2002-09-19 | Pts Consulting Ag Villigen | Gasdichte Lebensmittelverpackung sowie Verfahren zu deren Herstellung |
DE102005035489B4 (de) * | 2005-07-28 | 2007-04-05 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Vorrichtung und Verfahren zum Beschichten von Verpackungen |
GB2457943A (en) * | 2008-02-29 | 2009-09-02 | Colpac Ltd | Film coated blank for forming foodstuff container |
EP2441696A1 (de) * | 2010-10-14 | 2012-04-18 | Packable B.V. | Verpackung für die modifizierte Atmosphärenverpackung |
FR2979329B1 (fr) * | 2011-08-26 | 2013-08-23 | Cgl Pack Service | Barquette composite a imbrication |
DE102013006309B4 (de) * | 2013-04-12 | 2015-10-22 | Roba Services Gmbh | Verpackungssystem umfassend eine Kartonstruktur |
FI128264B (fi) * | 2014-01-07 | 2020-02-14 | Jopamac Oy | Elintarvikepakkaus |
DE102020107869A1 (de) * | 2020-03-23 | 2021-09-23 | Ar Packaging Gmbh | Verfahren zum Herstellen eines oben offenen Behälters mit einem umlaufenden Flansch und einer Barrierefolie |
EP3939897A1 (de) * | 2020-07-13 | 2022-01-19 | AR Packaging GmbH | Verfahren zum herstellen von verpackungen aus zellulosehaltigem flachmaterial mit einem umlaufenden randflansch und einer barrierefolie |
EP4253259A1 (de) * | 2022-03-28 | 2023-10-04 | Ulma Packaging, S.Coop. | Verfahren und vorrichtung zur steuerung einer heisssiegelmaschine und heisssiegelmaschine |
EP4286288A1 (de) | 2022-05-31 | 2023-12-06 | Stackpack B.V. | Kartonschale |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4265390A (en) * | 1978-01-16 | 1981-05-05 | Champion International Corporation | Paperboard tray |
US4200481A (en) * | 1978-07-27 | 1980-04-29 | Champion International Corporation | Apparatus for making a lined tray |
US4257530A (en) * | 1978-07-27 | 1981-03-24 | Champion International Corporation | Lined tray |
DE3940162A1 (de) * | 1989-12-05 | 1991-06-06 | Pkl Verpackungssysteme Gmbh | Fluessigkeits- und gasdichte deckelpackung aus einem topf- oder schalenfoermigen korpus und einem darauf aufgesiegelten deckel |
DE9106586U1 (de) * | 1991-05-29 | 1991-08-01 | Europa Carton Ag, 2000 Hamburg, De | |
US5253801A (en) * | 1992-12-22 | 1993-10-19 | International Paper Company | Multi sided food tray |
DE4303041A1 (de) * | 1993-02-03 | 1994-08-11 | Meurer Druck & Carton | Faltbarer Verpackungsbehälter |
DE4327669A1 (de) * | 1993-08-17 | 1995-02-23 | Jochen Dietrich | Lebensmittelverpackung, Verfahren zur Herstellung einer sauerstoffdichten Verpackung, Vorrichtung zur Durchführung einer derartigen Verfahrens und dabei verwendende Schalenreihe |
-
1996
- 1996-12-23 DE DE19654230A patent/DE19654230A1/de not_active Withdrawn
-
1997
- 1997-12-23 DE DE59710313T patent/DE59710313D1/de not_active Expired - Fee Related
- 1997-12-23 EP EP97954460A patent/EP0946391B1/de not_active Expired - Lifetime
- 1997-12-23 WO PCT/EP1997/007256 patent/WO1998028195A1/de active IP Right Grant
- 1997-12-23 AT AT97954460T patent/ATE243139T1/de not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3733531B1 (de) | 2019-05-03 | 2021-07-14 | Ulma Packaging Technological Center, S.Coop. | Verfahren und maschine zur verpackung von produkten |
US11597543B2 (en) | 2019-05-03 | 2023-03-07 | Ulma Packaging, S. Coop. | Methods and apparatus for packaging products |
RU2806170C2 (ru) * | 2019-05-03 | 2023-10-27 | Ульма Пэкэджин, С.Кооп. | Способ и машина для упаковки продуктов |
WO2021219937A1 (en) * | 2020-04-27 | 2021-11-04 | Jospak Oy | Product package and method for manufacturing the same as well as product package blank |
Also Published As
Publication number | Publication date |
---|---|
DE59710313D1 (de) | 2003-07-24 |
WO1998028195A1 (de) | 1998-07-02 |
DE19654230A1 (de) | 1998-07-02 |
ATE243139T1 (de) | 2003-07-15 |
EP0946391A1 (de) | 1999-10-06 |
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