EP1577226B1 - Couvercle à deux couches - Google Patents

Couvercle à deux couches Download PDF

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Publication number
EP1577226B1
EP1577226B1 EP05450022A EP05450022A EP1577226B1 EP 1577226 B1 EP1577226 B1 EP 1577226B1 EP 05450022 A EP05450022 A EP 05450022A EP 05450022 A EP05450022 A EP 05450022A EP 1577226 B1 EP1577226 B1 EP 1577226B1
Authority
EP
European Patent Office
Prior art keywords
layer
stamped out
form according
lid form
inner layer
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.)
Active
Application number
EP05450022A
Other languages
German (de)
English (en)
Other versions
EP1577226A1 (fr
Inventor
Andreas Niederer
Lambert Nekula
Franz Reiterer
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.)
Teich AG
Original Assignee
Teich AG
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 Teich AG filed Critical Teich AG
Priority to PL05450022T priority Critical patent/PL1577226T3/pl
Priority to SI200530856T priority patent/SI1577226T1/sl
Priority to EP08011221A priority patent/EP1961670B1/fr
Publication of EP1577226A1 publication Critical patent/EP1577226A1/fr
Application granted granted Critical
Publication of EP1577226B1 publication Critical patent/EP1577226B1/fr
Active legal-status Critical Current
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
    • B65D77/10—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
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • B65D77/206—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened so as to uncover one or more preformed openings made through some layers of the cover
    • 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
    • B65D2577/2075—Lines of weakness or apertures
    • B65D2577/2091—Lines of weakness or apertures in cover

Definitions

  • the invention relates to a lid-shaped punched-out element for closing containers for microwave dishes according to the preamble of claim 1.
  • two-layer lid for closing containers, for example, to allow the required food for flavor protection.
  • the two layers are connected to each other via a pressure-sensitive adhesive.
  • the two layers are connected together by a layer of a non-reactive heat adhesive.
  • the upper layer of the lid is removed and only after the separation of the inner, second layer, the access to the packaged goods is possible.
  • the access to the packaged goods can also be achieved by integrated grip bottles, as in the US 2004/0013827 A1 and the US-A-5,709,310 be facilitated.
  • a pouring opening is described, which is formed by material cuts or indentations in the packaged goods facing position during peeling of the layers.
  • This pouring opening can also be resealed.
  • the reclosability of this package is effected by a self-adhesive layer applied between the layers.
  • the packaged goods are in the "resealed" state against the ingress of contaminants protected;
  • an aroma protection or even a possible heating of the packaged goods is only possible to a limited extent, since aroma and pack contents can escape during heating due to the material-like separations in the form of incisions.
  • the invention aims to remedy this situation.
  • the present invention is therefore based on the object to provide a cover-shaped punched-out element of the type mentioned above, which satisfactorily preserves the contents of the package, in particular as regards the aroma protection, and which is easy to handle for the consumer when opening.
  • this object is achieved with a lid-shaped punched-out element of the type mentioned above, which is characterized in that the predetermined breaking points are realized in the form of stampings, which may differ due to the heating of microwave dishes, possibly resulting vapors.
  • cover-shaped punched element are disclosed according to the subclaims.
  • the outer layer 2 or the inner layer 3 is produced for the time being.
  • the outer layer 2 for example, an aluminum foil whose thickness is in a range of 10 to 100 microns is used.
  • plastic films in a thickness range of 10 to 100 microns.
  • the plastics can be selected from the group consisting of polypropylene, polyethylene, polyester, polyacrylate, polyamide or polystyrene.
  • the outer layer 2 can further be equipped with a printed image on its surface side facing the observer. This may be both smooth and rough in its surface finish. The surface roughness results from irregular, but also regular arrangement of the print motifs the desired print image. Furthermore, the surface roughness of the printed image facilitates the unstacking of the usually stored in magazines stacked punched-out elements.
  • the aforementioned printed image can also reproduce the information from which the consumer takes the origin, composition and duration of the durability of the packaged goods.
  • Cold-sealing substances are characterized by the fact that a bond between two layers can be produced by applying pressure, but without additional temperature application.
  • the cold-sealing layer may be provided, for example, by applying a polymer-containing emulsion or dispersion.
  • polymer-containing emulsions in aqueous form for example, those with the trade name "Crodaseal 22-055" can be used, since they comply with food law regulations.
  • the layer 3 facing the container is produced or prepared in a further method step.
  • This consists for example of plastics in mono- or composite structure, wherein a thickness range of 10 to 100 microns is selected.
  • the plastics can be selected from the group consisting of polypropylene, polyethylene, polyester, polyacrylate, polyamide or polystyrene.
  • the inner layer 3 facing the container is provided with a heat-sealable layer 5 on its surface side 3 'facing the container.
  • a heat-sealable layer 5 on its surface side 3 'facing the container.
  • This can be formed for example from a heat sealing lacquer or a peelable plastic film.
  • the heat-sealable layer 5 is designed to be surface-rough, since this substantially facilitates the destacking of the cover elements which are usually mounted one above the other in magazines.
  • the rapid destacking process is particularly advantageous if, as in the case of perishable food, they must be particularly carefully and hermetically sealed during packaging.
  • predetermined breaking points 10 are generated by punching and serve that, for example, when heating microwave dishes possibly resulting vapors may differ without causing contamination of the microwave oven.
  • the cold-sealing layer 4 After preparing or preparing the outer layer 2 or the inner layer 3, these are connected to one another via their mutually facing surface sides 2 'and 3' by the cold-sealing layer 4 in a cold lamination process.
  • Due to the pressure formed in the nip pressure occurs at room temperature on the cold-sealing layer 4 is an adhesive bond on the surface sides 2 'and 3' of the layers 2 and 3. Since the laminating at room temperature, the heat-sealable layer 5 remains in the deactivated state, ie no crosslinking reactions of any kind whatsoever take place which cause an undesired adhesion at this
  • the layers 2 and 3 are now connected via their surfaces 2 'and 3' by the cold-sealing layer 4.
  • This composite is stored as a roll from which the elements can be punched out for closing in the appropriate lid shape.
  • the formation of an opening aid, for example a gripping tab 9, 9 ', can also be provided at the glue-free areas.
  • cover elements 1, which are usually stored in magazines, can now be used for further use, i. for closing containers 7, are used. After filling, the containers 7 are closed continuously with the lid-shaped punched-out elements 1 according to the invention in a heat-sealing process.
  • the lid member 1 actually partially peeled off i. can be peeled, is the bond between the outer layer 2 and the inner layer 3 in a range of 0.2 to 4.5 N / 15 mm (measured according to DIN EN 28510-1 "peel test for flexible / rigidly bonded samples") ,
  • the composite partners are separated from each other at the ends of the samples by hand, so that the free ends can be clamped in the clamping device of the Buchprüfauss, for example one of the company. Zwick.
  • the clamping device of the Switzerlandprüfauss, for example one of the company. Zwick.
  • a clamping length of max. 50 mm and a take-off angle of 90 ° the further examination.
  • the measurement result or the course of the peel strength (composite adhesion) is either read on the tensile tester or recorded with the chart recorder. From the results of each series of experiments the mean values are calculated in N / 15mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Package Specialized In Special Use (AREA)
  • Cookers (AREA)
  • Closures For Containers (AREA)

Claims (14)

  1. Élément (1) découpé en forme de couvercle servant à fermer des récipients (7) pour plats pour micro-onde comprenant une première couche extérieure (2) et une deuxième couche intérieure (3), lesquelles sont reliées l'une à l'autre par une couche scellant à froid (4) par le biais de leurs côtés superficiels (2', 3') se faisant face l'un l'autre, la deuxième couche intérieure (3) étant dotée au niveau de son côté tourné vers le récipient d'une couche scellable à chaud (5) et l'adhérence entre la couche extérieure (2) et la couche intérieure (3) étant inférieure à celle entre la couche intérieure (3) et le bord du récipient (8) et la deuxième couche intérieure (3) présentant des points de rupture (10), caractérisé en ce que les points de rupture (10) sont réalisés sous forme d'incisions, par lesquelles peuvent s'échapper les vapeurs générées le cas échéant lors du réchauffement de plats pour micro-onde.
  2. Élément découpé en forme de couvercle selon la revendication 1, caractérisé en ce que l'adhérence entre la couche extérieure (2) et la couche intérieure (3) est de 0,2 à 4,5 N/15mm, mesurée selon DIN EN 28510-1.
  3. Élément découpé en forme de couvercle selon la revendication 1 ou 2, caractérisé en ce que l'adhérence entre la couche intérieure (3) et le bord du récipient (8) est supérieure ou égale à 5 N/15mm, mesurée selon DIN EN 28510-1.
  4. Élément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche extérieure (2) et la couche intérieure (3) sont en un seul type de matériau et/ou en matériau composite.
  5. Élément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la couche extérieure (2) est une feuille de métal, de préférence une feuille d'aluminium.
  6. Élément découpé en forme de couvercle selon la revendication 5, caractérisé en ce que la couche extérieure (2) est dotée d'une impression.
  7. Élément découpé en forme de couvercle selon la revendication 6, caractérisé en ce que l'impression présente une surface rugueuse.
  8. Élément découpé en forme de couvercle selon la revendication 7, caractérisé en ce que l'impression à surface rugueuse prend la forme d'écarteurs agencés géométriquement.
  9. Élément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la couche intérieure (3) est en matières plastiques.
  10. Élément découpé en forme de couvercle selon la revendication 9, caractérisé en ce que les plastiques sont choisis dans le groupe des polypropylènes, polyéthylènes, polyesters, polyacrylates, polyamides ou polystyrènes.
  11. Élément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que la couche intérieure (3) comprend au moins une couche en papier.
  12. Élément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 11,
    caractérisé en ce que la couche scellable à chaud (5) présente une surface rugueuse.
  13. Élément découpé en forme de couvercle selon la revendication 12, caractérisé en ce que la rugosité de la surface est réalisée en fonction d'écarteurs (6) agencés géométriquement.
  14. Élément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 13,
    caractérisé en ce qu'une zone non adhérente est prévue sous forme d'aide à l'ouverture, de préférence de languette de préhension (9, 9'), dans au moins une couche (2, 3).
EP05450022A 2004-03-18 2005-02-03 Couvercle à deux couches Active EP1577226B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL05450022T PL1577226T3 (pl) 2004-03-18 2005-02-03 Płytka dwuwarstwowa
SI200530856T SI1577226T1 (sl) 2004-03-18 2005-02-03 Dvoslojni pokrov
EP08011221A EP1961670B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0048104A AT500261B8 (de) 2004-03-18 2004-03-18 Zweilagenplatine
AT4812004 2004-03-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08011221A Division EP1961670B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches

Publications (2)

Publication Number Publication Date
EP1577226A1 EP1577226A1 (fr) 2005-09-21
EP1577226B1 true EP1577226B1 (fr) 2009-08-26

Family

ID=34831642

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08011221A Active EP1961670B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches
EP05450022A Active EP1577226B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08011221A Active EP1961670B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches

Country Status (9)

Country Link
US (1) US20050218143A1 (fr)
EP (2) EP1961670B1 (fr)
AT (4) AT500261B8 (fr)
DE (2) DE502005010569D1 (fr)
DK (1) DK1577226T3 (fr)
ES (1) ES2328710T3 (fr)
HR (1) HRP20090427T1 (fr)
PL (1) PL1577226T3 (fr)
SI (1) SI1577226T1 (fr)

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Also Published As

Publication number Publication date
ES2328710T3 (es) 2009-11-17
DE502005007970D1 (de) 2009-10-08
SI1577226T1 (sl) 2010-01-29
DK1577226T3 (da) 2009-12-14
ATE440790T1 (de) 2009-09-15
AT7937U1 (de) 2005-11-15
DE502005010569D1 (de) 2010-12-30
AT500261A1 (de) 2005-11-15
PL1577226T3 (pl) 2010-06-30
EP1577226A1 (fr) 2005-09-21
ATE488450T1 (de) 2010-12-15
AT500261B8 (de) 2007-02-15
EP1961670B1 (fr) 2010-11-17
US20050218143A1 (en) 2005-10-06
AT500261B1 (de) 2006-09-15
HRP20090427T1 (hr) 2009-10-31
EP1961670A1 (fr) 2008-08-27

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