EP0431292A2 - Combinaison de matériau sous forme de film - Google Patents

Combinaison de matériau sous forme de film Download PDF

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Publication number
EP0431292A2
EP0431292A2 EP90120174A EP90120174A EP0431292A2 EP 0431292 A2 EP0431292 A2 EP 0431292A2 EP 90120174 A EP90120174 A EP 90120174A EP 90120174 A EP90120174 A EP 90120174A EP 0431292 A2 EP0431292 A2 EP 0431292A2
Authority
EP
European Patent Office
Prior art keywords
adhesive coating
cold adhesive
packaging
weak point
heated
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.)
Ceased
Application number
EP90120174A
Other languages
German (de)
English (en)
Other versions
EP0431292A3 (en
Inventor
Manfred Hera
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.)
Huhtamaki Grundstuecksverwaltungs GmbH Ronsberg
Original Assignee
4P Verpackungen Ronsberg GmbH
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 4P Verpackungen Ronsberg GmbH, Unilever NV filed Critical 4P Verpackungen Ronsberg GmbH
Publication of EP0431292A2 publication Critical patent/EP0431292A2/fr
Publication of EP0431292A3 publication Critical patent/EP0431292A3/de
Ceased 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
    • 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
    • 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
    • B65D2205/00—Venting means

Definitions

  • the invention relates to a film-like material combination for packaging foods which are to be heated in the packaged state in a microwave oven or the like.
  • the invention has for its object to provide a combination of materials for the stated purpose, with which the food can be heated in the packaged state.
  • a cold adhesive coating is provided for the closure of the packaging, which is provided with at least one weak point, at which water vapor generated during heating can escape while separating the weak point.
  • the weak point is still closed, so that the filling material is neither contaminated nor can it escape. Only when a certain amount is exceeded The weak point opens and the water vapor escapes.
  • the cold adhesive coating is designed with a smaller width in the region of the weak points.
  • This smaller width of the strip-shaped cold adhesive coating is sufficient for normal sealing of the packaging, but cannot withstand the increased internal pressure when water vapor is generated.
  • paper is provided on the outside of the material structure, followed by PETP on the inside, which in turn serves as a carrier for the cold adhesive coating.
  • the particularly hot packaging is easier to handle.
  • FIG. 1 in FIG. 1 denotes a combination of materials that is used to pack food that can be heated in a microwave oven.
  • the material combination consists of a carrier layer 2 made of paper, onto which a plastic film 4 made of PETP is applied with the aid of a laminating adhesive 3.
  • This PETP layer 4 is a Cold adhesive 5 applied in strips, which comes to lie on top of one another when a blank of this material is folded into a package and thereby adheres to itself.
  • the strip-shaped cold glue is constricted in several places, so that weak spots 6 form, in the area of which there is only a relatively narrow cold glue bridge. When they are unfolded, these narrow bridges come to rest on one another so that their narrow width is preserved.
  • the paper layer 2 can be provided with paint 7 and a lacquer layer 8 on its side facing away from the plastic layer, as a result of which the paper receives additional protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)
  • Cartons (AREA)
  • Packages (AREA)
EP19900120174 1989-11-23 1990-10-20 Film-type combination of materials Ceased EP0431292A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893938809 DE3938809A1 (de) 1989-11-23 1989-11-23 Folienartige materialkombination
DE3938809 1989-11-23

Publications (2)

Publication Number Publication Date
EP0431292A2 true EP0431292A2 (fr) 1991-06-12
EP0431292A3 EP0431292A3 (en) 1992-04-01

Family

ID=6394048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900120174 Ceased EP0431292A3 (en) 1989-11-23 1990-10-20 Film-type combination of materials

Country Status (2)

Country Link
EP (1) EP0431292A3 (fr)
DE (1) DE3938809A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10253916B4 (de) * 2002-11-19 2005-07-28 Volkmar Frenzel Eiscrem und Tiefkühlkost Mikrowellenbeutel mit Überdruckventilen
DE102006017834A1 (de) * 2006-04-13 2007-10-18 Cfs Kempten Gmbh Eine mikrowellengeeignete Verpackung
DE102009018489A1 (de) * 2009-04-22 2010-10-28 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verpackung, insbesondere Mikrowellen-Verpackungsbeutel, mit Druckausgleichsventil mit variablen Strömungsquerschnitt

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937396A (en) * 1974-01-18 1976-02-10 Schneider William S Valve for vented package
US4261504A (en) * 1979-09-21 1981-04-14 Maryland Cup Corporation Heat-sealable, ovenable containers
EP0256791A3 (fr) * 1986-08-18 1989-11-29 Nabisco Brands, Inc. Emballage pour mais à griller et à éclater au four à micro-ondes, méthode de production de l'emballage et appareil pour sceller celui-ci
EP0294087A3 (fr) * 1987-06-05 1989-06-07 Nabisco Brands, Inc. Emballage servant de plat destiné à la préparation de pop-corn dans un four à micro-ondes

Also Published As

Publication number Publication date
EP0431292A3 (en) 1992-04-01
DE3938809A1 (de) 1991-05-29

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