EP0284137B1 - Verpackung - Google Patents

Verpackung Download PDF

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Publication number
EP0284137B1
EP0284137B1 EP19880200454 EP88200454A EP0284137B1 EP 0284137 B1 EP0284137 B1 EP 0284137B1 EP 19880200454 EP19880200454 EP 19880200454 EP 88200454 A EP88200454 A EP 88200454A EP 0284137 B1 EP0284137 B1 EP 0284137B1
Authority
EP
European Patent Office
Prior art keywords
container
cover
edible material
edible
package according
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
EP19880200454
Other languages
English (en)
French (fr)
Other versions
EP0284137A1 (de
Inventor
Pieter Jacobus Rienks
Jan Van Der Veen
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to AT88200454T priority Critical patent/ATE79354T1/de
Publication of EP0284137A1 publication Critical patent/EP0284137A1/de
Application granted granted Critical
Publication of EP0284137B1 publication Critical patent/EP0284137B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/343—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated in a conventional oven, e.g. a gas or electric resistance oven
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups

Definitions

  • the invention relates to a package comprising a container, at least partly open at its upper side, on which is placed an edible material that extends partly above the container, and a cover attached to and sealing the container.
  • a second already known package comprises a container on which an edible material is placed which, however, does not extend above the container, and a not self-sustaining cover for the container.
  • Such packages have the disadvantage that, particularly when a shallow dish or a plate is used as container, the choice of edible materials that can be packaged is limited. Common edible materials such as potatoes, meat and poultry are often too large to be packaged in such a package.
  • a third already known package comprises a container on which an edible material is placed extending above the container and a not self-sustaining cover for the container which is tightly stretched over the edible material.
  • This package has the disadvantage that the material packaged therein is often deformed during packaging. Upon heating of materials in the package, the covering material often adheres to the edible material. This can lead to local burning and can also adversely affect the appearance of the product.
  • Such packages are, for instance, described in US H 896,016 and US 3,245,338.
  • the invention aims at overcoming the above-mentioned disadvantages; in particular the invention aims at providing a package comprising a not self-sustaining cover, in which vapour is developed during heating, so that, as a result thereof, the pressure inside the package increases somewhat, causing the cover to be released from the edible material.
  • a package according to the invention which comprises a container, at least partly open at its upper side, on which is placed an edible material that extends above the container, and a cover which is attached to and seals to the container, which cover is made at least mainly of a not self-sustaining material, characterized in that the surface of the cover situated within the seal to the container is larger than the surface of an imaginary foil stretched tightly from the said seal over the container and the edible material, so that above the edible material, the cover is spaced from the edible material or is draped in a slack condition over the edible material, whereby there is space between at least some of the edible material and the overlying cover, and the cover can be released from any contact with the edible material while the attachment of the cover to the container remains intact.
  • a process according to the invention is defined in the independent claim 9.
  • the surface of the cover situated within the sealing edge is larger than the surface of an imaginary foil stretched tightly from the sealing edge over the container and the edible material.
  • sealing edge is understood the boundary by which the interior of the package is separated from the rest of the surrounding area.
  • imaginary foil is understood a very flexible foil which, without folds, is stretched tightly over the container and its contents without deformations of the contents occurring.
  • the dimensions of the cover are chosen such that the cover does not leave too much space open between the edible material and the cover.
  • the dimensions of the cover are chosen such that the ratio between the surface of the cover situated within the sealing edge and the surface of an imaginary foil tightly stretched from the sealing edge is smaller than 1.5:1, more preferably smaller than 1.2:1.
  • the cover is often large enough for no deformation of, or damage to, the edible material to be caused, while also there is not too much play between cover and edible material, as a result of which dehydration and mixing of different components of the edible material can be prevented to a large extent.
  • the amount of covering material can also be reduced by this.
  • container various containers commonly employed in food industry can be used, such as pans, boxes, dishes, glass pots etc. If the package is intended to be heated before the edible material is consumed, the container and the cover will be manufactured from a material that is resistant to heat and/or microwave radiation.
  • PET polyethylene terephthalate
  • the upper side of the container should at least be partly open.
  • upper side of the container is understood that side which, during normal use of the container when the edible material is placed on it, is at the top.
  • the container can possibly change position. If, however, a direction or an orientation is indicated in this application, reference is made here to the prevailing orientation of the package during the positioning of the edible material.
  • a particularly advantageous embodiment of a package according to the invention comprises a plate as container.
  • plate is understood here an object provided with a substantially flat bottom and a somewhat raised edge part, which is used for consuming meals from. This term encompasses, inter alia, flat, deep, round, square and compartmented plates.
  • the use of a plate as container in a package according to the invention has the advantage that, after removal of the cover, the meal is ready for consumption in an attractive form.
  • the container is provided with an edge to which the cover can be attached.
  • a container is used having an at least partly flat edge, by which is understood an edge which is provided with a completely, or substantially completely, horizontal edge part close to the whole circumferential edge of the container.
  • Such an at least partly flat edge has the advantage that the cover can be attached in a simple manner to the flat part.
  • a container the edge part of which is provided with a flat, embossed edge.
  • a flat, embossed edge is understood a continuous, flat, strip-shaped, raised or lowered face situated close to the circumferential edge of the container.
  • the cover can be attached to this flat, embossed edge in a simple manner, the attachment also being such that, optionally after heating, the cover can be removed without auxiliary means.
  • Such a detachable attachment is very handy in practice.
  • a package according to the invention which comprises frozen, edible material, for instance a deep-frozen meal.
  • frozen, edible material for instance a deep-frozen meal.
  • Such meals will often be placed on the container in non-frozen state.
  • the components of the meal are relatively vulnerable.
  • the meal is frozen, as a result of which the vulnerability decreases somewhat. In this manner, it is possible to prevent the edible material from being damaged after packaging by external influences, for instance during transport and storage.
  • a package according to the invention relate, for instance, to the packaging of meals which are placed on the container in cooled form and are thereafter stored under chilled conditions. It is also possible to put edible materials in frozen state on the container, whereafter the package is stored in frozen state.
  • the cover is manufactured from a not self-sustaining foil material, such as aluminium foil, plastic foil, PET foil and the like. If the package is intended to be heated, it is preferred that a heat-resistant foil be used. Such materials are cheap and easy to handle. Use of an at least partly transparent foil has the further advantage that the edible material can be seen by the consumer without the package having to be opened. This also has the advantage that such a packaging material readily allows the passage of heat radiation, as a result of which the heating time can remain limited. Particularly advantageous is a package according to the invention in which the cover is attached to the edge or the flat part of the edge of the container. With this the amount of material used in the cover is reduced to a minimum.
  • the cover be attached to the container in such a manner that the interior of the package is sealed.
  • Such sealing can, for instance, be achieved by gluing the cover to the container.
  • the attachment of the cover to the container by means of heat-sealing.
  • the attachment of the cover to the container is preferably detachable so that, possibly after heating, the cover can be removed without using any auxiliary means.
  • cover for example, a thermally pre-formed covering material can be used, and it is also possible to bring the covering material into the desired form by pleating.
  • a flat piece of foil is used as material for the covering, which is attached in pleated form to the container.
  • This embodiment has the great advantage that the starting material is cheap and no expensive equipment is necessary for giving the covering material the desired form before it is placed on the container.
  • the cover is pre-formed by pleating a flat piece of foil into dome-shape.
  • the attachment to the container in pleated form will, in principle, adequately seal the container, so that entry of contamination from the environment is prevented.
  • the cover will be released from the product because of vapour formation.
  • the pleated cover is attached to the container such that fine channels are formed between container and cover.
  • Fig. 1A gives a cross-section of a preferred embodiment of a package according to the invention comprising a round plate 1, provided with a raised edge part 2 and a flat edge 3, which is provided with an embossed edge 7, which is, for instance, 4 mm wide and 1 mm high.
  • An edible material is placed on the plate in the form of a frozen meal 4, the meal partly extending above the plate.
  • the plate is sealed by a piece of foil 5, which is detachably attached in pleated form (not visible) to the embossed edge 7 by means of heat sealing, as a result of which a sealing edge 6 is formed.
  • the dimensions of the covering foil are such that it can be released from the meal without deforming said meal, while the attachment of the covering foil to the container remains intact. This release takes place automatically during warming up, during which the cover is released from the product by vapour formation.
  • Fig. 1B shows a cross-section of the plate of Fig. 1A.
  • the board is sealed by a foil 8b, which is stretched tightly from the sealing edge 6b over the plate and the meal placed thereon.
  • the ratio between the surface of the covering foil 5 situated within the sealing edge in Fig. 1A and the surface of the tightly stretched foil situated within this edge in Fig. 1B is 1.1:1.
  • Fig. 2 shows a cross-section of a second embodiment of a package according to the invention comprising a round plate 11, provided with a raised edge part 12 and a flat edge 13.
  • An edible material is placed on the plate in the form of a meal 14, the meal extending partly above the plate.
  • the plate is sealed by a round piece of foil 15, which is attached in pleated form (not visible) by means of gluing to the lower part of the edge, as a result of which a sealing edge 16 and a gluing edge 17 are formed.
  • the dimensions of the piece of foil are such that it can be released therefrom without deforming the meal, while the attachment of the foil to the plate remains intact.
  • Fig. 2B shows, for comparison, a cross-section of the plate of Fig. 2A, comprising a round plate 11b, on which a meal 14b placed.
  • the plate is sealed by a foil 18b, which is tightly stretched from the sealing edge 16b over the plate and the meal placed thereon.
  • the ratio between the surface of the covering foil situated within the sealing edge in Fig. 2A and the surface of the tightly stretched foil situated within this sealing edge in Fig. 2B is 1.14:1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Wrappers (AREA)

Claims (12)

  1. Verpackung, welche einen Behälter (1, 11), der an seiner Oberseite zumindestens teilweise offen ist und auf dem ein eßbares Gut (4, 14) placiert ist, welches über den Behälter hinausragt, und eine Abdeckung (5, 15) aufweist, welche am Behälter angebracht ist und an diesen angesiegelt ist, welche Abdeckung zumindestens hauptsächlich aus einem nicht selbsttragenden Material gebildet ist, dadurch gekennzeichnet, daß die innerhalb der Siegelung (6, 16) mit dem Behälter liegende Fläche der Abdeckung größer ist als die Fläche einer gedachten Folie, welche von dieser Siegelung fest über den Behälter und das eßbare Gut gespannt ist, so daß über dem eßbaren Gut die Abdeckung sich im Abstand vom eßbaren Gut befindet oder in schlaffem Zustand über das eßbare Gut gelegt ist, wobei zwischen mindestens einem Teil des eßbaren Gutes und der darüberliegenden Abdeckung ein Abstand besteht, und die Abdeckung von jeglicher Berührung mit dem eßbaren Gut gelöst werden kann, während die Befestigung der Abdeckung am Behälter unversehrt bleibt.
  2. Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß die innerhalb der Siegelung (6, 16) liegende Fläche der Abdeckung nicht größer ist als das 1,5-Fache der Fläche der erwähnten gedachten Folie, welche von der Siegelung weg fest gespannt ist.
  3. Verpackung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Behälter eine Platte ist.
  4. Verpackung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das eßbare Gut gefroren oder gekühlt ist.
  5. Verpackung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Abdeckung aus einem flachen Stück eines blattförmigen Materials gebildet ist, welches am Behälter in gefältelter Form angebracht ist.
  6. Verpackung nach Anspruch 5, dadurch gekennzeichnet, daß die gefältelte Abdeckung so am Behälter angebracht ist, daß feine Kanäle zwischen dem Behälter und der Abdeckung gebildet sind.
  7. Verpackung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Abdeckung durch Heißsiegelung am Behälter angebracht ist.
  8. Verpackung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Behälter und die Abdeckung aus einem wärmebeständigen und/oder mikrowellenbeständigen Material gebildet sind.
  9. Verfahren zum Verpacken von eßbarem Gut, bei dem eßbares Gut (4, 14) auf einem Behälter (1, 11) placiert wird, der an seiner Oberseite zumindestens teilweise offen ist, wobei das eßbare Gut teilweise über den Behälter hinausragt, worauf der Behälter durch Anbringen einer Abdeckung (5, 15) am Behälter abgeschlossen wird, welche Abdeckung zumindestens hauptsächlich aus einem nicht selbsttragenden Material gebildet wird, dadurch gekennzeichnet, daß die innerhalb der Siegelung (6, 16) mit dem Behälter liegende Fläche der Abdeckung größer ist als die Fläche einer gedachten Folie, welche von dieser Siegelung fest über den Behälter und das eßbare Gut gespannt ist, so daß über dem eßbaren Gut die Abdeckung sich im Abstand vom eßbaren Gut befindet oder in schlaffem Zustand über das eßbare Gut gelegt ist, wobei zwischen mindestens einem Teil des eßbaren Gutes und der darüberliegenden Abdeckung ein Abstand besteht, und die Abdeckung von jeglicher Berührung mit dem eßbaren Gut gelöst werden kann, während die Befestigung der Abdeckung am Behälter unversehrt bleibt.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß die Abdeckung, bevor sie am Behälter angebracht wird, durch Fälteln eines flachen Stückes von Blattmaterial in die Form einer Kuppel vorgeformt wird.
  11. Verfahren nach Anspruch 9 oder Anspruch 10, dadurch gekennzeichnet, daß das eßbare Gut in ungefrorenem Zustand auf dem Behälter placiert wird und daß das eßbare Gut nach dem Verpacken gefroren wird.
  12. Verfahren nach Anspruch 9 oder Anspruch 10, dadurch gekennzeichnet, daß ein zumindest teilweises gefrorenes eßbares Gut in einem zumindest teilweise gefrorenen Zustand auf dem Behälter placiert wird.
EP19880200454 1987-03-17 1988-03-09 Verpackung Expired - Lifetime EP0284137B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88200454T ATE79354T1 (de) 1987-03-17 1988-03-09 Verpackung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700628 1987-03-17
NL8700628 1987-03-17

Publications (2)

Publication Number Publication Date
EP0284137A1 EP0284137A1 (de) 1988-09-28
EP0284137B1 true EP0284137B1 (de) 1992-08-12

Family

ID=19849717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880200454 Expired - Lifetime EP0284137B1 (de) 1987-03-17 1988-03-09 Verpackung

Country Status (5)

Country Link
EP (1) EP0284137B1 (de)
AT (1) ATE79354T1 (de)
DE (1) DE3873571T2 (de)
ES (1) ES2035238T3 (de)
GR (1) GR3006201T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019470C1 (de) * 1990-06-19 1992-02-20 Benedict Lebensmittel Gmbh, 5000 Koeln, De
FR2668126B1 (fr) * 1990-10-19 1994-03-25 Madrange Sa Conditionnement pour l'emballage sous vide d'un produit notamment alimentaire presentant une surface quelconque, et procede de preparation d'un tel conditionnement.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244537A (en) * 1963-03-25 1966-04-05 Cease Central Inc Method for preparing and serving combinations of food items
US3245338A (en) * 1964-01-23 1966-04-12 Abraham L Korr Food container
UST896016I4 (en) * 1971-01-14 1972-03-07 Food package
US4252268A (en) * 1979-08-24 1981-02-24 Maryland Cup Corporation Lid for ovenable trays and resulting combined container
US4595117A (en) * 1985-08-16 1986-06-17 Continental Can Company, Inc. Sealing lip for lid on thermoformed container

Also Published As

Publication number Publication date
ES2035238T3 (es) 1993-04-16
ATE79354T1 (de) 1992-08-15
EP0284137A1 (de) 1988-09-28
DE3873571T2 (de) 1993-03-11
DE3873571D1 (de) 1992-09-17
GR3006201T3 (de) 1993-06-21

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