EP0946391B1 - Méthode pour la production d'un emballage etanche à l'oxygene, appareil pour appliquer ladite méthode - Google Patents

Méthode pour la production d'un emballage etanche à l'oxygene, appareil pour appliquer ladite méthode Download PDF

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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
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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
Application number
EP97954460A
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German (de)
English (en)
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EP0946391A1 (fr
Inventor
Consulting Ag Pts
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PTS Consulting AG
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)
  • Vacuum Packaging (AREA)

Claims (20)

  1. Procédé de fabrication d'un emballage étanche à l'oxygène, pour denrées, comprenant une coquille porteuse avec un rebord circulaire, laquelle est revêtue sur le côté intérieur d'une feuille composite en matière plastique et l'espace intérieur de la coquille porteuse est fermé hermétiquement au moyen d'une feuille de recouvrement empêchant de préférence l'entrée d'oxygène, la coquille porteuse étant une découpe en carton (10) avec une section de fond et plusieurs sections de paroi, et le bord contigu aux sections de paroi comprenant des segments de rebord (54) individuels pour la fixation de la feuille de recouvrement (20), chaque section de rebord (52) de la coquille porteuse comprenant un segment de rebord et, sur le côté extérieur étant formée de telle sorte que les segments de rebord (54) se collent en affleurement l'un contre l'autre en position de scellage par l'intermédiaire des lignes de coupe biaise et tandis que pour la stabilisation, les segments de paroi de la coquille porteuse au point de rencontre avec les segments de rebord (54) se recouvrent partiellement et sont fixés au moyen de sections de chevauchement (55), procédé au cours duquel, des découpes en carton traversent en pas à pas un poste de formage (PF) avec, pour le complètement de l'emballage, implantés en aval un trajet de remplissage (TR) et un poste de mise sous vide et de scellage (PS), caractérisé en ce que les découpes en carton (10) dressées sont agencées par rangées dans le poste de formage(PF), et les segments de rebord (54) du rebord (52) sont brisés avant la mise en place dans le poste de moulage.
  2. Procédé selon la revendication 1, caractérisé en ce que les découpes en carton (10) ayant des rebords dressés (52) sont amenées au poste de formage (PF) par rangées.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les rebords (52) sont comprimés dans le poste de formage (PF)dans leur position de scellage, de sorte que les rebords (52) des découpes en carton (10) adjacentes reposent étroitement les unes à côté des autres.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le revêtement de la surface intérieure des découpes en carton (10) se fait par rangées et au moyen d'une feuille composite en matière plastique (34) recouvrant l'ensemble de la surface de scellage du bord (52), moyennant quoi, faisant suite au moulage de la feuille composite en matière plastique (34), le transport se fait au même rythme par une chaíne de transport (48) vers le poste de remplissage (PR).
  5. Procédé selon la revendication 4, caractérisé en ce que la feuille composite en matière plastique (34) est moulée par la production d'une différence de pression dans la pièce découpée en carton (10) et est thermoplastifiée fixement avec les rebords(52) et le côté intérieur de la pièce découpée en carton (10).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les découpes en carton (10) liées par la feuille composite en matière plastique de revêtement (34) sont soudées de préférence d'une manière continue dans le poste de mise sous vide et de scellage (PS) avec une feuille de recouvrement (20) au-dessus du rebord (52).
  7. Procédé selon la revendication 6, caractérisé en ce que la feuille de recouvrement (20) est soudée avec la feuille composite en matière plastique (34) dans la zone d'un évidement de prise (EP) formé par le bord en décalage des découpes en carton, sortant de l'arête intérieure du bord (24) uniquement au-dessus d'une zone partielle (ZP) du chevauchement s'étendant à l'intérieur dans l'évidement de prise (EP).
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la feuille composite en matière plastique (34) comprend une couche de blocage d'entrée d'oxygène (36) de préférence en alcool polyvinylique et une couche de scellage (38) de préférence en polyéthylène détachable ainsi qu'une couche adhésive (37), de préférence en polyéthylène modifié, en particulier un copolymère d'éthylène avec 6% d'acide méthacrylique, qui sont partiellement neutralisées (50%) avec des ions de Na et de zinc (Surlyn A).
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la feuille de recouvrement (20) est formée par une feuille composite en matière plastique (34), qui comprend du côté tourné vers la découpe en carton (10) une couche en matière plastique de préférence détachable, de préférence en polyéthylène et, reposant dessus, au moins une couche bloquant l'entrée d'oxygène, de préférence en alcool polyvinylique et par une couché de recouvrement bloquant la chaleur, par exemple en polypropylène.
  10. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la feuille composite en matière plastique (34) a selon la profondeur de moulage une force initiale comprise entre 100 et 150 µm.
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la feuille composite en matière plastique (34), qui revêt la découpe en carton (10), est identique à la feuille composite en matière plastique qui recouvre le bord (24).
  12. Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la découpe en carton (10) consiste en un carton recyclable, de préférence à deux couches.
  13. Dispositif pour la réalisation du procédé selon l'une des revendications 1 à 12, comprenant un poste de moulage, dans lequel des découpes en carton dressées, qui ont une section de fond et plusieurs sections de paroi ainsi qu'un bord contigu aux sections de paroi de segments de rebord (54) individuels, sont revêtues d'une feuille en matière plastique, une installation pour le transport synchronisé des découpes en carton revêtues d'une feuille composite en matière plastique (34) du côté intérieur au moyen d'une feuille de revêtement, par un trajet de remplissage (TR), un poste de mise sous vide et de scellage (PS) et un poste de séparation (80, 81) implantés en aval, caractérisé en ce qu'en amont du poste de formage (PF) est implantée une installation brisant les segments de rebord (54) sont brisés avant la mise en place dans le poste de formage (PF), et en ce qu'au moins deux découpes en carton (10) latéralement côte à côte et reliées au-dessus des rebords (52) peuvent être amenées dans le trajet de remplissage (TR) au même rythme par l'intermédiaire d'une installation de transport au poste de mise sous vide et de scellage (PS).
  14. Dispositif selon la revendication 13, caractérisé en ce que des installations supplémentaires de support et de guidage, de préférence sous forme de supports orientés verticalement, qui peuvent être orientés de préférence en hauteur, sont prévues pour les rebords(54) côte à côte pour empêcher une flexion permanente incontrôlée.
  15. Dispositif selon l'une quelconque des revendications 13 ou 14, caractérisé en ce que, après la prise en charge des découpes en carton reliées (10) par la chaíne de transport (48), la feuille composite en matière plastique (34) adaptée à la formation du revêtement en feuille composite en matière plastique est entraínée par un rouleau distributeur de manière continue (33), lequel est disposé en substance verticalement au-dessus du trajet d'entrée, par un rouleau de guidage au-dessus des découpes en carton (40) reliées par l'intermédiaire des rebords(52) adjacents ou du support en forme de selle.
  16. Dispositif selon l'une quelconque des revendications 13 à 15, caractérisé en ce que la feuille composite en matière plastique (34), entraínée au-dessus des rebords(52) et des supports de selle (42) des découpes en carton (10), est soudée ou scellée, de façon commandée en rythme, par des supports de scellage (74) du poste de formage(PF)avec les rebords (52) ou les supports en forme de selle des découpes en carton (40) adjacentes.
  17. Dispositif selon l'une quelconque des revendications 13 à 16, caractérisé en ce que la feuille composite en matière plastique (34) reliée ainsi avec les rebords (54) et les supports de selle (42) est transportée de manière continue par le mouvement en avant commandé en rythme de l'installation de transport par le poste de formage(PF).
  18. Dispositif selon la revendication 17, caractérisé en ce que la feuille composite en matière plastique (34) est réalisée en plastique par un plateau chauffant (72) du poste de formage (PF) et est entraínée, ainsi chauffée, au moyen de la différence de pression dans les découpes en carton.
  19. Dispositif selon la revendication 18, caractérisé en ce qu'un ruban de support (50), avec lequel les découpes en carton sont supportées par dessous en particulier dans et après le trajet de remplissage (TR), circule de manière synchrone avec l'installation de transport.
  20. Dispositif selon l'une quelconque des revendications 13 à 19, caractérisé en ce que le poste de mise sous vide et de scellage (PS) comprend une partie inférieure de moule (16) pour loger régulièrement les découpes en carton et une partie supérieure de moule (18) pouvant être chauffée, avec laquelle la feuille de recouvrement (20) amenée en continu par le rouleau (22) jusque dans le moule ouvert peut être pressée contre les supports de selle (42) ou les rebords circulaires et, sous l'effet de la chaleur, peut être soudée à la feuille composite en matière plastique (34).
EP97954460A 1996-12-23 1997-12-23 Méthode pour la production d'un emballage etanche à l'oxygene, appareil pour appliquer ladite méthode Expired - Lifetime EP0946391B1 (fr)

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 (fr) 1996-12-23 1997-12-23 Emballage etanche a l'oxygene pour produits alimentaires

Publications (2)

Publication Number Publication Date
EP0946391A1 EP0946391A1 (fr) 1999-10-06
EP0946391B1 true EP0946391B1 (fr) 2003-06-18

Family

ID=7816141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97954460A Expired - Lifetime EP0946391B1 (fr) 1996-12-23 1997-12-23 Méthode pour la production d'un emballage etanche à l'oxygene, appareil pour appliquer ladite méthode

Country Status (4)

Country Link
EP (1) EP0946391B1 (fr)
AT (1) ATE243139T1 (fr)
DE (2) DE19654230A1 (fr)
WO (1) WO1998028195A1 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
EP3733531B1 (fr) 2019-05-03 2021-07-14 Ulma Packaging Technological Center, S.Coop. Procédé et machine d'emballage de produits
WO2021219937A1 (fr) * 2020-04-27 2021-11-04 Jospak Oy Emballage de produit et son procédé de fabrication ainsi qu'ébauche d'emballage de produit
RU2806170C2 (ru) * 2019-05-03 2023-10-27 Ульма Пэкэджин, С.Кооп. Способ и машина для упаковки продуктов

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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
DE20217626U1 (de) 2002-11-09 2003-01-09 Schilling, Frank, 25486 Alveslohe Verpackungselement mit Spannfolie
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 (fr) * 2010-10-14 2012-04-18 Packable B.V. Conditionnement pour conditionnement sous atmosphère modifiée
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 (fr) * 2020-07-13 2022-01-19 AR Packaging GmbH Procédé de fabrication d'emballages à partir d'un matériau plat contenant de la cellulose doté d'un rebord périphérique et d'un film barrière
EP4253259A1 (fr) * 2022-03-28 2023-10-04 Ulma Packaging, S.Coop. Procédé de commande de machine de thermoscellage et machine de thermoscellage
EP4286288A1 (fr) 2022-05-31 2023-12-06 Stackpack B.V. Plateau en carton

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733531B1 (fr) 2019-05-03 2021-07-14 Ulma Packaging Technological Center, S.Coop. Procédé et machine d'emballage de produits
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 (fr) * 2020-04-27 2021-11-04 Jospak Oy Emballage de produit et son procédé de fabrication ainsi qu'ébauche d'emballage de produit

Also Published As

Publication number Publication date
DE59710313D1 (de) 2003-07-24
ATE243139T1 (de) 2003-07-15
DE19654230A1 (de) 1998-07-02
EP0946391A1 (fr) 1999-10-06
WO1998028195A1 (fr) 1998-07-02

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