EP0547941B1 - Behälter und Verfahren zu seiner Herstellung - Google Patents

Behälter und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0547941B1
EP0547941B1 EP92403302A EP92403302A EP0547941B1 EP 0547941 B1 EP0547941 B1 EP 0547941B1 EP 92403302 A EP92403302 A EP 92403302A EP 92403302 A EP92403302 A EP 92403302A EP 0547941 B1 EP0547941 B1 EP 0547941B1
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EP
European Patent Office
Prior art keywords
container
substance
opening
recess
melting point
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
EP92403302A
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English (en)
French (fr)
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EP0547941A1 (de
Inventor
Michel Beizermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Constructions de Materiel Metallique et Electrique Ste
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Constructions de Materiel Metallique et Electrique Ste
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Publication of EP0547941A1 publication Critical patent/EP0547941A1/de
Application granted granted Critical
Publication of EP0547941B1 publication Critical patent/EP0547941B1/de
Anticipated expiration legal-status Critical
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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
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element

Definitions

  • the present invention relates to containers and to a process for pasteurizing or sterilizing products contained in these containers.
  • the invention applies very particularly to containers used in the food industry, in particular to cans or "trays", but it also applies to any other container intended to contain objects which, after pasteurization or sterilization or other heat treatment, must be protected from any danger of soiling or contamination.
  • FR-A-2 656 280 already discloses an automatic shutter device by thermal conditioning effect for food preparation for deferred consumption in which a tray has a tongue hinged on its edge and folded towards the inside of the tray after filling. by food, the tongue comprising a perforated seat in which is deposited a drop of fusible composite resin which becomes porous at a determined temperature.
  • the seat has an orifice closed by the porous material which comes directly into contact with the food contained in the tray which can therefore be caused to be polluted by the porous substance.
  • the container according to the invention makes it possible to carry out, directly in the container presented to consumers, pasteurization or sterilization, without decanting or handling.
  • the method of manufacturing the container requires only relatively simple equipment and its implementation during filling does not require any special equipment.
  • the integrity of the foodstuffs contained in the container, especially their color, is better preserved than so far.
  • the process for the pasteurization of products in these containers is as defined in claim 1. It consists, for example, in ensuring that a substance with a melting point between 65 ° C and 150 ° C is located in a housing defined in the upper part of a container and communicating with the interior of the container through a first orifice and with the outside through a second orifice, to heat the container and its housing to a temperature at least equal to the melting point of the substance during 5 to 90 minutes, then cool the substance to a temperature below its melting point faster than the rest of the container and its contents, then cool the rest of the container and its contents to a temperature less than or equal to room temperature .
  • the container and its housing When the container and its housing are heated to a temperature above the melting point of the substance, it melts and the contents of the container give off gases and steam, which create an overpressure of the interior of the container by report to the outside.
  • This overpressure prevents the substance which has become liquid from entering the interior of the container through the first orifice and causes at least partial delivery of the substance into the second orifice.
  • the substance does not, however, close the second orifice at this stage, so that the water vapor and the gases coming from inside the container can escape through this second orifice. This therefore makes it possible to carry out cooking, pasteurization or sterilization without having to fear an explosion of the container.
  • the second orifice has a circular cross-section, so that the substance begins to line the interior wall by initiating its exit to the outside, while leaving a passage for gases and water vapor.
  • good results are obtained when the second orifice has a diameter of between 0.7 and 2 mm.
  • a fusible adhesive is used in particular in an amount of 10 to 100 mg depending on the heat treatment temperature corresponding to pasteurization or to sterilization or to cooking.
  • meltable glue food hot-melt glues can be used in particular in the viscosities below.
  • the substance has a viscosity of 6 Pas to about 200 Pas at the firing temperature. It is thus best suited to line the second orifice without being completely expelled from the housing.
  • the temperature interval between the melting point and the softening point of the substance is less than 15 ° C and, preferably, greater than 7 ° C, so that as soon as the substance has cooled substantially compared to the rest of the container, it takes a quasi-solid pasty state and cannot fall through the first orifice and contaminate the contents of the container, since the pressure prevailing in it is still enough to repel the substance.
  • the substance is preferably food grade when the container is intended for this industry.
  • the container may in particular be a tin can, the housing preferably being attached to the lid and in particular formed on or under it, or a tray, the housing possibly being advantageously formed on a rim of the body of the covered tray. a sealing film.
  • the element can be added or, if necessary, come from molding with the container.
  • the can shown in Figure 1 has a body 3 sealed by a cover 2.
  • the cover 2 defines with a domed plate 6 a housing 1 for receiving 25 mg of a fusible resin 4 having a melting point 110 ° C.
  • the housing 1 communicates with the inside of the box through a first orifice 7 having a section of 3 mm 2 and with the outside through a second orifice 8.
  • the latter has a circular cross section with a diameter of 1 mm.
  • the viscosity of substance 4 is 10 Pas at 110 ° C.
  • the housing 1 is constituted by a part of the cover 2 stamped so as to form a bulge and by a flat plate 5.
  • the housing 1 is formed by a deformation of the cover by stamping and by a metal plate 5.
  • Figures 5 to 7 show a tray. It comprises a fuse valve formed by a housing 11 perforated in the lower part and formed in the horizontal rim 13 of the tray 12, advantageously in a corner or on the side.
  • This seat receives from manufacture a drop of fusible resin 14, advantageously in a corner or on the side, which solidifies. When it melts, it allows undesirable gases to pass, as well as the expanded hot air and the water vapor which escapes during cooking due to the overpressure which is created inside the tray during cooking.
  • Small channels 18 are arranged in the thickness of the material making up the tray 12 so as to put in communication, after sealing the film 17, the interior volume of the tray with the housing 11 of the fuse valve.
  • the fusible resin freezes again causing the closing of the fusible valve ( Figure 3), thus preventing outside air from entering the tray.
  • the vacuum created in the tray 12 by temperature difference adds to the preservation qualities of food products, which are immune to the risks of oxidation. For example, the colors of green vegetables are perfectly preserved.

Claims (11)

  1. Verfahren zur Pasteurisierung oder Sterilisation von Produkten in einem Behälter, die während dieser Pasteurisierung Gase und/oder Dampf abgeben, wobei der Behälter einen Bereich mit einem Aufnahmeraum (1,11) zur Aufnahme einer Substanz (4,14) aufweist, die einen Schmelzpunkt zwischen 65°C und 150°C hat, wobei diese Temperatur unter der Pasteurisierungs- oder Sterilisationstemperatur liegt, und der Aufnahneraum (1,11) mit den Inneren des Behälters durch eine erste Öffnung (7,18) und mit dem Außenraum durch eine zweite Öffnung (8) in Verbindung steht, wobei das Verfahren folgende Schritte unfaßt:
    a) Die Produkte werden in den Behälter eingefüllt.
    b) Der Behälter wird mit einem Deckel oder einem Film versiegelt, der an seinem Umfang verschweißt ist.
    c) Der Behälter und sein Aufnahneraum werden einen Pasteurisierungs- oder Sterilisationsverfahren unterzogen, derart, daß Gase und/oder Dampf, die von dem Produkt abgegeben werden, durch die erste und zweite Öffnung entweichen können und einen Stau wenigstens eines Teils der Substanz an der zweiten Öffnung hervorrufen.
    d) Das Pasteurisierungs- oder Sterilisationsverfahren wird beendet.
    e) Der Aufnahmeraum wird abgekühlt, derart, daß die Substanz schneller als der Rest des Behälters und sein Inhalt auf einer Temperatur unter ihrem Schmelzpunkt gebracht wird, wobei die Abkühlung der Substanz derart durchgeführt wird, daß die Substanz einerseits durch den Gasdruck im Behälter, der noch nicht abgekühlt ist, in den Aufnahmeraum und die zweite Öffnung zurückgedrängt wird und andererseits einen pasteusen, quasi festen oder festen Zustand annimmt und in dem Aufnahmeraum und an der zweiten Öffnung erstarrt und so eine vollständige Dichtigkeit des Behälters gewährleistet und nicht durch die erste Öffnung gelangen und den Inhalt des Behälters verschmutzen kann.
  2. Verfahren nach Anspruch 1,
    gekennzeichnet, durch die Verwendung einer Substanz, die eine Viskosität von 6 bis 200 Pas bei der Pasteurisierungs oder Sterilisationstemperatur aufweist.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Substanz am Ausgang der zweiten Öffnung (8) einen dichtenden Wulst mit einem Querschnitt bildet, der größer ist als der der zweiten Öffnung (8).
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Temperaturintervall zwischen dem Schmelzpunkt und dem Erweichungspunkt der Substanz- unter 15°C, vorzugsweise unter 7°C ist.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Substanz ein für Nahrungsmittel geeigneter schmelzbarer Klebstoff ist.
  6. Gasdichter Behälter, bei welchem ein Teil (2) zusammen mit einem mit ihm verbundenen Element (5) einen Aufnahmeraum (1) zur Aufnahme einer festen Substanz (4) eingrenzt, wobei der Aufnahmeraum (1) einerseits mit dem Inneren durch eine erste Öffnung (7) und andererseits mit der Außenwelt durch eine zweite Öffnung (8) in Verbindung steht, dadurch gekennzeichnet, daß die feste Substanz (4) die zweite Öffnung in erstarrtem Zustand verschließt und einen Schmelzpunkt zwischen 65°C und 150°C und eine Viskosität von 6 bis 200 Pas aufweist.
  7. Behälter zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Aufnahmeraum (1) am horizontalen Rand (13) des Behälters angebracht ist und daß sich die zweite Öffnung im unteren Bereich des Aufnahmeraums (11) befindet.
  8. Behälter nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, daß die Substanz am Ausgang der zweiten Öffnung (8) einen dichtenden Wulst mit einem Querschnitt, der größer ist als der der zweiten Öffnung (8), bildet.
  9. Behälter mit einer Abdeckung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß der Aufnahmeraum an die Abdeckung (2) angrenzt.
  10. Behälter nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß die Substanz an ihrem Schmelzpunkt eine Viskosität von 6 bis 200 Pas aufweist.
  11. Behälter nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, daß das Temperaturintervall zwischen dem Schmelzpunkt und dem Erweichungspunkt der Substanz kleiner als 15°C, vorzugsweise kleiner als 7°C ist.
EP92403302A 1991-12-17 1992-12-07 Behälter und Verfahren zu seiner Herstellung Expired - Lifetime EP0547941B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9116082 1991-12-17
FR9116082 1991-12-17
FR9208063 1992-06-24
FR9208063 1992-06-24

Publications (2)

Publication Number Publication Date
EP0547941A1 EP0547941A1 (de) 1993-06-23
EP0547941B1 true EP0547941B1 (de) 1996-07-24

Family

ID=26229143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403302A Expired - Lifetime EP0547941B1 (de) 1991-12-17 1992-12-07 Behälter und Verfahren zu seiner Herstellung

Country Status (6)

Country Link
US (1) US5307985A (de)
EP (1) EP0547941B1 (de)
JP (1) JPH05270571A (de)
AT (1) ATE140671T1 (de)
CA (1) CA2085439A1 (de)
DE (1) DE69212448T2 (de)

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FR2698082B1 (fr) * 1992-11-13 1994-12-23 Mat Metallique Elec Const Récipient étanche au gaz.
US5547694A (en) * 1993-03-23 1996-08-20 The Pillsbury Company Container for refrigeratable yeast-leavened doughs
US5759668A (en) * 1994-02-04 1998-06-02 Omron Corporation Heat seal structure
US5524755A (en) * 1994-03-14 1996-06-11 Deeds; Charles D. Sterilization container
FR2719028B1 (fr) * 1994-04-20 1996-07-26 Gether Sa Emballage pour produits alimentaires et préparation alimentaire conditionnée, utilisant un tel emballage.
FR2721908A1 (fr) * 1994-06-29 1996-01-05 Petrovic Zmaj Dispositif de soupape pour emballage pour preparations alimentaires du type a cuire apres conditionnement
ATE238206T1 (de) * 1998-06-24 2003-05-15 Alcan Tech & Man Ag Verschlussmembrane mit überdruckventil
FR2796924B1 (fr) * 1999-07-29 2001-10-19 Proplast Valve et emballage a valve,notamment pour cuisson d'aliments
US6830799B1 (en) 1999-10-26 2004-12-14 Orbseal Llc Expandable compositions and methods of making and using the compositions
FR2837797A1 (fr) * 2002-03-29 2003-10-03 Proplast Emballage pourvu d'un opercule rigide et d'une valve, notamment pour la cuisson d'aliments
FR2884493B1 (fr) * 2005-04-13 2007-08-24 M E S Technologies Sarl Procede de traitement thermique d'un produit contenu dans un emballage tel qu'une barquette
WO2007039676A1 (fr) * 2005-10-06 2007-04-12 Laboratoire Concept Nature.Com (Sarl) Procédé et dispositif pour la cuisson de produits alimentaires aux micro-ondes, dans un emballage du type barquette, et conditionnement obtenu par leur mise en oeuvre
JP2011507777A (ja) * 2007-12-31 2011-03-10 ポップパック エルエルシー 破裂可能縁部気泡を有する剛性の保持容器
US8545973B2 (en) * 2008-03-15 2013-10-01 Daniel D. Smolko Sealable containers
WO2010081081A2 (en) * 2009-01-09 2010-07-15 Porex Corporation Relief vent for a hot fill fluid container
US10252852B2 (en) * 2011-04-22 2019-04-09 Jbt Food & Dairy Systems B.V. Adaptive packaging for food processing systems
US9241510B2 (en) 2011-04-23 2016-01-26 Ics Solutions B.V. Apparatus and method for optimizing and controlling food processing system performance
US8893518B2 (en) 2011-04-25 2014-11-25 Ics Solutions B.V. Accelerating, optimizing and controlling product cooling in food processing systems
US9955711B2 (en) 2011-05-20 2018-05-01 Jbt Food & Dairy Systems B.V. Method and apparatus for increased product throughput capacity, improved quality and enhanced treatment and product packaging flexibility in a continuous sterilizing system
US9131729B2 (en) 2011-09-28 2015-09-15 Ics Solutions B.V. Safe and efficient thermal transfer media for processing of food and drink products
FR2981052B1 (fr) * 2011-10-10 2015-01-16 S2F Flexico Sachet pour sterilisation
US10407194B2 (en) * 2016-06-21 2019-09-10 United States Of America As Represented By The Secretary Of The Navy Low temperature self-sealing vacuum packaging

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Also Published As

Publication number Publication date
ATE140671T1 (de) 1996-08-15
DE69212448D1 (de) 1996-08-29
CA2085439A1 (en) 1993-06-18
EP0547941A1 (de) 1993-06-23
JPH05270571A (ja) 1993-10-19
US5307985A (en) 1994-05-03
DE69212448T2 (de) 1996-12-12

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