EP1751028B1 - Lebensmittelverpackung, konserviertes lebensmittel und verfahren zur herstellung und verwendung solcher verpackungen - Google Patents

Lebensmittelverpackung, konserviertes lebensmittel und verfahren zur herstellung und verwendung solcher verpackungen Download PDF

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Publication number
EP1751028B1
EP1751028B1 EP05742899A EP05742899A EP1751028B1 EP 1751028 B1 EP1751028 B1 EP 1751028B1 EP 05742899 A EP05742899 A EP 05742899A EP 05742899 A EP05742899 A EP 05742899A EP 1751028 B1 EP1751028 B1 EP 1751028B1
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EP
European Patent Office
Prior art keywords
container
layer
oxygen
packaging
packaging according
Prior art date
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Not-in-force
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EP05742899A
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English (en)
French (fr)
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EP1751028A2 (de
Inventor
Terry Luxton
Luc Fevrier
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RPC Group Ltd
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RPC Group Ltd
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Priority claimed from FR0402753A external-priority patent/FR2867758B1/fr
Priority claimed from FR0402752A external-priority patent/FR2867759B1/fr
Application filed by RPC Group Ltd filed Critical RPC Group Ltd
Publication of EP1751028A2 publication Critical patent/EP1751028A2/de
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Publication of EP1751028B1 publication Critical patent/EP1751028B1/de
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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
    • B65D81/2076—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/30—Groups of containers joined together end-to-end or side-by-side
    • 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
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2025—Multi-layered container, e.g. laminated, coated

Definitions

  • At least one aspect of the present subject relates to the packaging of cooked food product (s) intended to be stored for a period longer than six months, and preferably greater than twelve months, and still more preferably between eighteen and thirty-six months, at a temperature below 55 ° C, and typically at room temperature (that is, usually between about 10 ° C and 30 ° C and preferably between 15 ° C and 25 ° C).
  • US-A-4,766,018 , US-A-3,949,114 and GB 2048 775 disclose a thermoformed container closed by a lid, the container and the lid being made of several layers of material (x) including an oxygen barrier. More generally, the preamble of claim 1 below is thus disclosed.
  • the invention differs however from the cited prior art according to the characteristics of the characterizing part of claim 1 below. after.
  • gas permeability will preferably be measured with a relative humidity of 50% ("OXTRAN" controlled method)
  • Container permeability indicates a measure of permeability for a container (when grouped together, see below) that the ambient air enters through the wall of the container itself or the seal.
  • the invention relates, in claim 13, to a method for obtaining and using the concerned packaging filled with cooked food product (s) intended to be kept as already indicated.
  • the zone with mechanical weakening will be made by cutting the rim, by laser or water jet, after the step of thermoforming the containers.
  • a pulse laser producing a slot, here a notch, discontinuous to a depth greater than one third of the thickness of the side walls of the container and sufficient for its bottom reaches, or is immediately close to the layer of barrier material to the oxygen interposed between said inner and outer layers.
  • a neutral gas atmosphere and / or a relative depression ie a relative vacuum at atmospheric pressure
  • an oxygen permeability of the closed package between 0.01 ml and 0.001 ml of O 2 per container per twenty- four hours, always at 23 ° C, so that once the seal is sealed on the container is maintained this neutral gas atmosphere and / or this depression, at a temperature below about 55 ° C, and preferably at room temperature.
  • a bottom with a rounded bead will allow the container to have a shape that winds in a way on itself during pressure variations that it undergoes in particular during sterilization or depression for conservation.
  • the sterilization step includes a sterilization (or pasteurization) HTST (high temperature short time).
  • the (each) container has multilayer walls comprising, from the inside to the outside of the container, and from the face receiving the protective cover to the opposite face, a first layer comprising polypropylene, a second barrier layer comprising an ethylvinyl alcohol (EVOH) and a third layer comprising polypropylene.
  • a first layer comprising polypropylene
  • a second barrier layer comprising an ethylvinyl alcohol (EVOH)
  • EVOH ethylvinyl alcohol
  • the first layer which then comprises polypropylene will be thicker than the third layer, thus providing protection to the EVOH barrier layer.
  • the lid it is furthermore advised, for the same purpose of efficient preservation and controlled production cost, that it comprises, from its inner face coming into contact with the container concerned to close it, towards the opposite outer face, d firstly its inner layer which comprises polypropylene, a second layer comprising a polyamide and a third layer comprising polyester, the second and / or third layer defining said oxygen barrier.
  • the first layer of the lid comprises polypropylene
  • it is a polypropylene loaded with a powder powder not or not very sensitive to moisture (neutral mineral, such as crushed glass), to be weldable with the first layer of the container comprising polypropylene, while being peelable.
  • each container in a block to be partitioned will preferably be mechanically weakened along the junction zone between two adjacent containers by a slot of a depth greater than one third (and even half) of the thickness of the side walls of the container. These containers, this depth (even if it is a discontinuous slot) then being sufficient for its bottom reaches, or is immediately close to the layer of O 2 barrier material interposed between said inner and outer layers.
  • the multi-layer walls of the containers will comprise, from the inside to the outside of the container in question, a layer of one or comprising a homopolymer, a layer containing this homopolymer and a proportion of oxygen barrier material, a layer of the same oxygen barrier material, such as EVOH, and a copolymer layer.
  • the layer or layers comprising the homopolymer will advantageously be (together) thicker than that comprising the copolymer. And this or these layer / layers comprising the homopolymer and that comprising the copolymer will preferably comprise polypropylene.
  • a problem associated with that of cost-controlled storage for mass production concerns the mechanical strength of the container both during the sterilization / cooking of the food and later, when handling packaging for them. sold, or later, when handled by consumers.
  • the following characteristics of mechanical and / or thermal resistance are therefore important
  • each container concerned is based on plastic material, even if these materials may contain subsidiary quantities of metal or ceramics, in particular.
  • the packaging of the invention be devoid of a metal mass such as that it would prevent it from being placed in a microwave oven, so that its contents are heated to be consumed hot and, preferably, the lid (s) and containers are transparent or translucent.
  • a sterilized can comprising at least one cooked food product contained in said package, itself sterilized, to be kept at room temperature for a period of several months, possibly go up to several years, as already indicated, the packaging having for that all or part of the features shown, such as at least one container thermoformed with the material layers concerned, the same for the sealed cover.
  • An important aspect therefore relates to the preservation over time of the product contained in the packaging, over a period advantageously comparable to that of a current preserve: more than twelve months, and preferably eighteen to thirty-six months, at temperature less than 55 ° C as provided by the standard in canned foods.
  • the package may comprise one or preferably several containers, respectively 3.5; 7,9,11,13 and 2. Of course if there are several containers, they can be arranged in multiple rows (three, four ..), camembert ...
  • Each rim is located at the top of the side walls 17, opposite the bottom 19. It preferably has a thickness identical or similar to those of the walls 17,19.
  • the perimeter of the rim considered for all the assembled containers is bordered by a falling edge 21 which extends it, this falling edge having a priori inherently a mechanical strength greater than that of the junction zone 20 of the rim 15 by which two adjacent containers are joined together ( figures 1,2 ), this elongated junction zone with mechanical weakness (which can be obtained by a slot 40) to break at this point the junction between the containers, to separate them. It is therefore a frangible zone.
  • a slot will preferably extend in the fallen edge 21, advantageously in the extension of the slot 40 of the flange, or adjacent to it.
  • each illustrated container has a circumferential peripheral bead 23 convex (rounded) outwardly.
  • the container is thus allowed to "roll” on itself during pressure variations occurring during sterilization / pasteurization or during a possible depression of the package, under the sealed seal which closes the door (s). ) container (s) (schematized in 25 on the figures 4 and 7 , above the containers).
  • the (each) operculum and each container is based on plastic material having, respectively, to seal them between them at the location of the flange 15, a contact layer 27,31 ( figure 7 ) polyolefin or polyester (this layer being called inner layer).
  • Such a polypropylene layer is preferred, with even advantageously a powder powder charge not or not very sensitive to moisture, to facilitate the peelable nature of the seal 25 which is a priori a film for cost issues, ease of use. employment and manipulation.
  • the total thicknesses of the walls of each container and the lid are between about 0.2mm and 1.5mm, and about 35 microns and 150 microns, respectively.
  • each container preferably has semi-rigid multilayer walls (15, 17, 19) comprising from inside each container to the outside and from the face of the flange receiving the lid towards the opposite face (lower face): the layer 31 preferably made of polypropylene, then a barrier layer 33 and a third layer 35 of polyester or again of polyolefin (polypropylene in particular).
  • the first layer 31 is thicker than the third 35, because the first layer is called to be in contact with liquid if the product contained in the container is immersed in such a liquid (juice).
  • This layer may comprise a barrier based on metal, ceramic or plastic.
  • a second layer 37 comprising a polyamide and a third layer 39 comprising a polyamide or polyester, the layer 37 and / or the layer 39 define a barrier to oxygen.
  • Polyester is a nonstick during welding (sealing container / operculum).
  • the oxygen barrier will comprise a silicon oxide (SiOx).
  • SiOx silicon oxide
  • Al0x is usable, in particular.
  • the barrier layer now will not prevent the predominantly transparent or translucent nature of the walls of the container and the lid.
  • the barrier is based on a metal compound, its thickness will be between about 3 microns and 500 microns, and preferably between 5 and 30 microns.
  • the thickness of the layer will be between 3 and 500 nm.
  • the thickness is a priori greater than 8-10 microns, and between about 40 microns and 70 microns.
  • the metal layers can be made by partial vacuum deposition, the ceramic layers by electro-deposition (in particular technique called "electron beam evaporation” - evaporation with electron beam).
  • bonding agents such as vinyl chloride copolymers, acetate copolymers, vinyl chloride, polymerizable polyesters, pyridine vinyl polymers, in combination with epoxy resins, phenolic resins, acrylic resins or organosilanes.
  • Adhesives could also be used such as polyester copolyamides, phenolic resins of the nitrile rubber (“nitrile rubber phenolic resins”) type, or even vinyl acetate-ethylene copolymers, in particular.
  • each container will be between 600 ml and 1200 ml, and preferably between 800 ml and 950 ml.
  • these comprise structural reinforcements along the aforementioned junction zone.
  • These reinforcements are formed by excrescences made during molding of the containers and therefore integrated with them.
  • thermoforming makes it possible to reach the dimensions and shapes above, in particular in height, with the desired thicknesses (preferably constant thickness, including at the edge of the rim and the dropped edge 21) with a high quality and cost effective manufacturing.
  • the reinforcements are formed in relief on the underside 15a of the flange, on either side of the junction zone 20.
  • the relief / hollow reinforcements are advantageously located closer to the outer peripheral boundary of the flange 15 than to the side walls of the adjacent adjacent containers, near the longitudinal ends of the corresponding junction zone or line.
  • a triangular shape ( figures 3 and 5 ) or star (in the center figure 5 ) facilitates the gripping of the lid, the triangle or the star being split into two parts, on either side of the mechanical weakening 40 made along the joining strip 20, to allow separation between the containers concerned.
  • the container 2,3,5; 7,9,11, or 13 in question is plastic-based and is semi-rigid to support sterilization and / or depression.
  • each container is therefore in addition transparent or translucent, which makes it possible to check the content (cooking state, possible oxidation) and to avoid the disadvantages of the opaque walls (in particular metallic), likewise for the operculum which is a flexible film, a priori peelable.
  • the closed package (solid, possibly sealed seal) may be placed in the microwave, although the heating can be achieved by water bath if it is desired not to empty the container to heat it with its contents.
  • each container is strongly recommended, allowing to use the materials already mentioned and still presented below, with a well-controlled manufacturing technique, in large series to make the cost and to obtain dimensions of containers (in particular height) such that the height of the container (including if it is unique) is between 20mm and 120mm, and preferably between 25mm and 80mm, and even more preferably between 30mm and 60mm.
  • the materials chosen for the containers and the lids also favor, in the thicknesses concerned, such HTST sterilization.
  • this depression is between 100mb and 250mb.
  • a cover 25, with locally a mechanical weakening to divide in parts at the same time as separating the containers from one another, or several disjointed covers, may be suitable in this case, the linear separation between two operculas / adjacent parts of the same operculum at the origin (during its installation) operating at the right of the slots 40.
  • the oxygen barrier effect of the containers, the seal (s) and their sealing interface is important, for long-term preservation optimized to more than twelve months, and preferably more than eighteen months as already indicated.
  • the heating temperature reached by the precooked product which will therefore be sterilized with its receptacle receptacle where it was previously placed, will be between 123 ° C and 132 ° C, and preferably between 125 ° C and 130 ° C, with a bearing at this temperature between preferably 3mn and 15mn, and advantageously between 4mn and 9mn, at a bearing pressure included (during this time) between 2000bars and 3600bars, and advantageously between 2400bars and 3200bars.
  • the time to reach the pressure / temperature stage will be between 4 and 15 minutes, and advantageously between 6 and 12 minutes. This will be followed by pre-cooling between 90 ° C and 100 ° C for 3 to 7 minutes, with almost the same pressure, then a final cooling of about 15 to 25 minutes, then down to 30-40 ° C and at ambient pressure.
  • the two sub-layers 31a, 31b may constitute the layer 31 mentioned before.
  • the layer (s) on the inner side of the oxygen barrier intermediate layer is favorably thicker than the outer copolymer layer on the other side, an asymmetric multilayer structure will be obtained in the sense that the layer 33 barrier material is not located in the middle of the wall thickness, but shifted to the outer side, the rewind obtained typically by the falls or by recycling is a priori only disposed on one side of the barrier layer 33 , precisely on the inside.
  • the thickness of the layer of barrier material 33 will be at least 16 ⁇ m, the finished container (already thermoformed), this thickness being favorably between 40 and 80 ⁇ m, on the original sheet, before thermoforming.
  • the total thickness of the wall e of each container it will be between 0.8 mm and 1.5 mm, and preferably between 1 mm and 1.4 mm.
  • Each interlayer binder / adhesive may have a thickness of the order of 1 to 2 microns.
  • plastic containers multi-layer, rigid or semi-rigid, obtained by thermoforming, a priori sterilizable in an autoclave, the containers are also likely to change to microwave and let the consumer see, or guess, the product through the walls of the container.

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  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Laminated Bodies (AREA)

Claims (14)

  1. Sterilisierbare, halbstarre Verpackung für ein gegartes Nahrungsmittelprodukt oder Nahrungsmittelprodukte, das oder die zur Aufbewahrung bei Umgebungstemperatur während einer Dauer von mehreren Monaten oder bis zu mehreren Jahren vorgesehen ist oder sind, wobei die Verpackung zumindest ein thermogeformtes und sterilisierbares Behältnis (3, 5, 7, 9, 11, 13) und zumindest einen schützenden Verschluss (25), der das Behältnis verschließt, umfasst,
    - wobei das Behältnis Wände (17, 19) umfasst, die eine gesamte Dicke (e) aufweisen, die zwischen 0,8 mm und 1,5 mm liegt, und die aus mehreren Schichten von Material oder Materialien gebildet sind, einschließlich:
    • innerlich und äußerlich, einschließlich an der Stelle der Oberseite eines über den Umfang verlaufenden Rands (15), der den schützenden Deckel aufnimmt, einer Schicht (31, 35) aus oder enthaltend Polyolefin, vorzugsweise Polypropylen oder Polyester oder enthaltend Polypropylen oder Polyester,
    • und zwischen den Schichten eine Barriere (33) gegenüber dem Eindringen von Sauerstoff in das Behältnis,
    - wobei der genannte schützende Deckel (25) seinerseits zumindest eine derartige Sauerstoffbarriere (37, 39) umfasst, die mit einer inneren Schicht (27) verbunden und angepasst ist, um sauerstoffdicht an dem entsprechenden Behältnis fixiert zu werden, an der Stelle des genannten Rands, wobei diese innere Schicht Polyester oder ein Polyolefin umfasst, das mit der entsprechenden Schicht des Behältnisses kompatibel ist,
    dadurch gekennzeichnet, dass zur Aufbewahrung in den genannten Verpackungen von gegarten Nahrungsmitteln bei Umgebungstemperatur während einer Dauer von mehreren Monaten bis zu mehreren Jahren, wobei der Deckel an das entsprechende Behältnis gesiegelt ist, mit einer Gasdurchlässigkeit der Verpackung zwischen 0,01 ml und 0,001 ml Sauerstoff je Behältnis und 24 Stunden bei etwa 23°C:
    - die Gesamtdicke des Deckels (25) zwischen etwa 35 µ und 150 µ liegt,
    - das Volumen des Behältnisses zwischen 600 ml und 1200 ml und vorzugsweise zwischen 800 ml und 950 ml liegt, mit einer Höhe des Behältnisses zwischen 20 mm und 120 mm, und vorzugsweise zwischen 25 mm und 80mm, und weiter bevorzugt zwischen 30 mm und 60 mm,
    - jede genannte Sauerstoffbarriere eine Barriereschicht auf Metallbasis und/oder eine Barriereschicht auf keramischer Basis und/oder eine Barriereschicht auf Kunststoffbasis umfasst, wobei die Barriereschicht auf Metallbasis eine Dicke zwischen etwa 3 µ und 500 µ und vorzugsweise zwischen 5 µ und 30 µ aufweist und in ihrer Zusammensetzung ein Metall oder eine metallische Legierung von Aluminium, Kupfer, Eisen oder Zinn enthält, wobei die keramische Barriereschicht eine Dicke zwischen 3 nm und 500 nm aufweist und in ihrer Zusammensetzung zumindest ein Oxid aufweist, ausgewählt aus den Siliziumoxiden, Aluminiumoxiden, Eisenoxiden, und wobei die Kunststoff-Barriereschicht eine Dicke zwischen 40 µ und 70 µ aufweist und zumindest ein Polymer vorzugsweise unter den Polyamiden, Polyvinylidenchloriden (PVDC), Polyolefinen, Polyvinylchloriden, Acrylonitril-Copolymeren oder Polyethylenterephthalat (PTFE) oder auch Ethylen-Vinylalkohol (EVOH) umfasst.
  2. Verpackung nach Anspruch 1, dadurch gekennzeichnet, dass sie mehrere Behältnisse (3, 5, 7, 9, 11, 13) umfasst, wobei zwei benachbarte Behältnisse miteinander auf lösbare Weise auf zumindest einer Seite unter Vermittlung des genannten über den Umfang verlaufenden Rands (15) verbunden sind, entlang einer Verbindungszone (20), wo der Rand einen Bereich (40) aufweist, der von einem Spalt (40) mechanisch geschwächt ist, welcher eine Tiefe aufweist, die größer ist als ein Drittel der Dicke der seitlichen Wände dieser Behältnisse, und ausreichend, damit sein Grund die genannte Barriereschicht (33) erreicht oder unmittelbar benachbart dazu ist.
  3. Verpackung nach Anspruch 2, dadurch gekennzeichnet, dass der Rand (15) der Behältnisse außenseitig eine heruntergezogene Randkante (21) aufweist, die diesen verlängert, wobei die heruntergezogene Randkante einen mechanischen Widerstand aufweist, der größer ist als der des mechanisch geschwächten Bereichs (40) der genannten Verbindungszone (20).
  4. Verpackung nach Anspruch 2, dadurch gekennzeichnet, dass der Rand (15) der Behältnisse außenseitig eine heruntergezogene Randkante (21) aufweist, die diesen verlängert, wobei die heruntergezogene Randkante ihrerseits eine mechanische Schwächung benachbart zu der des Rands aufweist.
  5. Verpackung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die gesamte Dicke (e) der genannten Wände des Behältnisses oder der Behältnisse zwischen 1 mm und 1,4 mm liegt.
  6. Verpackung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Höhe (h) zwischen etwa 35 mm und 65 mm liegt, und vorzugweise zwischen 40 mm und 55 mm, wobei das oder jedes Behältnis im Bereich seines Bodens eine Breite (1) aufweist, die zwischen 20 mm und 80 mm und vorzugsweise zwischen 20 mm und 40 mm liegt, sowie eine Länge L, die zwischen 60 mm und 120 mm und vorzugsweise zwischen 65 mm und 85 mm liegt.
  7. Verpackung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Höhe (h) zwischen etwa 20 mm und 65 mm und vorzugsweise zwischen 30 mm und 45 mm liegt, wobei das oder jedes Behältnis im Bereich seines Bodens eine Breite (1') aufweist, die zwischen 40 mm und 120 mm und vorzugsweise zwischen 65 mm und 85 mm liegt, sowie eine Länge (L'), die zwischen 75 mm und 120 mm und vorzugsweise zwischen 80 mm und 95 mm liegt.
  8. Verpackung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die mehrschichtigen Wände (15, 17, 19) des oder jedes Behältnisses von innen nach außen eines jeden betrachteten Behältnisses eine erste Schicht (31), die Polypropylen umfasst, eine zweite Barriereschicht (33), die einen Ethylenvinylalkohol (EVOH) umfasst, und eine dritte Schicht (35), die Polypropylen umfasst, aufweisen, wobei die erste Schicht, die Polypropylen umfasst, dicker ist als die dritte Schicht.
  9. Behältnis nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die mehrschichtigen Wände (15, 17, 19) des oder jedes Behältnisses von innen nach außen des betrachteten Behältnisses eine Schicht (31), die ein Homopolymer umfasst, eine Schicht (32), die dieses Homopolymer und einen Anteil eines Barrierematerials mit Sauerstoff umfasst, eine Schicht (33) aus dem gleichen Barrierematerial mit Sauerstoff, wie etwa einen Ethylenvinylalkohol (EVOH), und eine Schicht (35) aus Copolymer aufweist.
  10. Verpackung nach Anspruch 9, dadurch gekennzeichnet, dass die Schicht oder Schichten (31; 31, 32), die das Homopolymer umfasst oder umfassen, dicker ist oder zusammen dicker sind als diejenige Schicht, die das Copolymer umfasst.
  11. Verpackung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Deckel (25) von der Innenseite, die in Kontakt mit dem betreffenden Behältnis kommt, um dieses zu verschließen, in Richtung auf die gegenüberliegende Außenseite eine erste Schicht (27), die Polypropylen umfasst, eine zweite Schicht (37), die ein Polyamid umfasst, und eine dritte Schicht (39), die Polyester umfasst, aufweist, wobei die zweite und/oder die dritte Schicht die genannte Barriereschicht mit Sauerstoff bildet oder bilden.
  12. Verpackung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass zumindest das oder jedes Behältnis frei von einer metallischen Masse ist, wie etwa einer, die ein Hindernis gegenüber einer Anordnung in einem Mikrowellenherd darstellen würde, um den Inhalt darin zu erhitzen, damit er heiß verzehrt werden kann, und dass das oder jedes Behältnis transparent oder durchscheinend ist.
  13. Verfahren zum Herstellen und Verwenden einer Verpackung nach einem der Ansprüche 1 bis 12, gefüllt mit mindestens einem gegarten Nahrungsmittelprodukt, das vorgesehen ist, um bei Umgebungstemperatur aufbewahrt zu werden, dadurch gekennzeichnet, dass
    - das oder jedes Behältnis thermogeformt wird,
    - der oder die Deckel (25) bereitgestellt wird oder werden,
    - das Produkt oder die Produkte eingefüllt wird oder werden, die Verpackung (1, 10, 100) sterilisiert wird und in dem durch den Deckel verschlossenen und auf diese Weise gefüllten Behältnis ein relativer Unterdruck hergestellt wird, der zwischen 5 und 500 mbar und vorzugsweise zwischen 100 und 250 mbar liegt,
    - bei Umgebungstemperatur das Produkt oder die Produkte, das oder die in der Verpackung enthalten ist oder sind, während einer Dauer von mehr als 12 Monaten aufbewahrt wird oder werden, vorzugsweise zwischen 18 und 36 Monaten, unter Beibehaltung einer Durchlässigkeit der geschlossenen Verpackung für Sauerstoff, die zwischen 0,01 ml und 0,001 ml Sauerstoff je Verpackung und 24 Stunden bei im Wesentlichen 23°C liegt, und vorzugsweise etwa gleich 0,004 ml Sauerstoff je Behälter und 24 Stunden ist, bei 23°C.
  14. Sterilisierte Konserve, die die Verpackung nach einem der Ansprüche 1 bis 12 umfasst, gefüllt mit einem oder mehreren gegarten Nahrungsmittel oder Nahrungsmitteln, das oder die bei Umgebungstemperatur aufbewahrt wird oder werden, und/oder die durch Umsetzung des Verfahrens nach Anspruch 13 erhalten worden ist.
EP05742899A 2004-03-17 2005-03-17 Lebensmittelverpackung, konserviertes lebensmittel und verfahren zur herstellung und verwendung solcher verpackungen Not-in-force EP1751028B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0402753A FR2867758B1 (fr) 2004-03-17 2004-03-17 Emballage longue conservation et procede pour obtenir un tel emballage
FR0402752A FR2867759B1 (fr) 2004-03-17 2004-03-17 Emballage pour aliments et procede de fabrication de recipients sterilisables separables pour un tel emballage
PCT/FR2005/000655 WO2005090199A2 (fr) 2004-03-17 2005-03-17 Emballage pour aliments, conserve obtenue et procede de fabrication de recipients sterilisables et separables, pour un tel emballage

Publications (2)

Publication Number Publication Date
EP1751028A2 EP1751028A2 (de) 2007-02-14
EP1751028B1 true EP1751028B1 (de) 2010-07-21

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Application Number Title Priority Date Filing Date
EP05742899A Not-in-force EP1751028B1 (de) 2004-03-17 2005-03-17 Lebensmittelverpackung, konserviertes lebensmittel und verfahren zur herstellung und verwendung solcher verpackungen

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EP (1) EP1751028B1 (de)
AT (1) ATE474790T1 (de)
DE (1) DE602005022432D1 (de)
WO (1) WO2005090199A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007050637B4 (de) 2007-10-23 2013-10-10 Rpc Bebo-Plastik Gmbh Verfahren zur Herstellung thermogeformter Artikel sowie Werkzeug zu deren Herstellung
GB2536970B (en) * 2015-04-02 2019-10-09 Linpac Packaging Ltd Multipack container

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1464718A (en) * 1973-05-10 1977-02-16 Grace W R & Co Laminates containing layers of aluminium and hydrolysed olefin-vinyl ester copolymer
GB2048775B (en) * 1979-05-11 1983-11-02 American Can Co Foodstuff packaging materials
US4542029A (en) * 1981-06-19 1985-09-17 American Can Company Hot filled container
GB2143471B (en) * 1983-07-18 1987-08-12 Metal Box Plc Multilayer plastics structures and apparatus and methods for their manufacture
DE3545768A1 (de) * 1985-12-21 1987-06-25 Wolff Walsrode Ag Leicht aufreissbare, sterilisierbare packungen
US5032434A (en) * 1989-04-07 1991-07-16 Aluminum Company Of America Compatibilized blend comprising skin polymer, ethylene-vinyl alcohol copolymer, and poly-2-oxazoline

Also Published As

Publication number Publication date
ATE474790T1 (de) 2010-08-15
EP1751028A2 (de) 2007-02-14
WO2005090199B1 (fr) 2006-11-23
DE602005022432D1 (de) 2010-09-02
WO2005090199A3 (fr) 2006-05-26
WO2005090199A2 (fr) 2005-09-29

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