EP1961670B1 - Couvercle à deux couches - Google Patents

Couvercle à deux couches Download PDF

Info

Publication number
EP1961670B1
EP1961670B1 EP08011221A EP08011221A EP1961670B1 EP 1961670 B1 EP1961670 B1 EP 1961670B1 EP 08011221 A EP08011221 A EP 08011221A EP 08011221 A EP08011221 A EP 08011221A EP 1961670 B1 EP1961670 B1 EP 1961670B1
Authority
EP
European Patent Office
Prior art keywords
lid
element according
shaped punched
layer
outer 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.)
Expired - Lifetime
Application number
EP08011221A
Other languages
German (de)
English (en)
Other versions
EP1961670A1 (fr
Inventor
Andreas Niederer
Franz Reiterer
Lambert Nekula
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.)
Constantia Flexibles Group GmbH
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
Publication of EP1961670A1 publication Critical patent/EP1961670A1/fr
Application granted granted Critical
Publication of EP1961670B1 publication Critical patent/EP1961670B1/fr
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
    • 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 consisting of a first outer layer and a second inner layer, which are connected to each other via their facing surface sides by a cold-sealing layer, wherein the second inner layer on its side facing the container with a heat sealable layer, and wherein the bond strength between the first outer layer and the second inner layer is lower than that between the inner layer and the container edge.
  • Cover-shaped punched elements of the type mentioned are from the JP 10 024 962 A known, according to which the two layers are interconnected by a cold-sealing layer and the upper layer does not completely cover the lower. According to the WO 2001/83 208 A1 the two layers are connected to each other via a pressure-sensitive adhesive. In the DE 297 01 955 U1 The two layers are connected by a layer of laminating paint.
  • 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 DE 195 23 754 A1 proposed, or by perforations in the form of a pouring opening, as in WO 2001/83 208 A1 and the corresponding one US 2004/0013827 disclosed, be relieved.
  • packings with pouring openings are suitable for liquid or nearly liquid packaged goods, their handling is cumbersome when the packaged goods are free-flowing.
  • the invention aims to remedy this situation.
  • a cover-shaped punched-out element of the type mentioned is proposed, which is characterized in that the second inner layer is formed of a perforated grid consisting of heat-sealable plastics, and that this grid consists of longitudinal threads and transverse threads.
  • the consumer Due to the different composite adhesion between the layers of the cover-shaped punched-out element on the one hand and the container edge on the other hand, it is possible for the consumer to easily cause a partial opening of the container such that subtracted in a first opening step, the outer layer of the container facing inner layer ie is peeled.
  • the second opening step can largely be dispensed with, since a metered output is possible due to the perforated grid.
  • cover-shaped punched element are disclosed according to the subclaims.
  • Fig. 1 a possible use form of the lid-shaped punched-out element 1 according to the invention for closing a container 7
  • Fig. 2 a possible construction of the cover-shaped punched-out element 1 according to the invention.
  • the outer layer 2 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 can be both smooth and rough in its surface design. The surface roughness results from irregular, but also regular arrangement of the print motifs the desired print image.
  • the surface roughness of the printed image facilitates that Unstacking the usually stored in magazines stacked punched punched 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 surface side 2 ' which is provided with the cold-sealing layer 4, is now connected to the container-facing inner layer 3, which shows the shape of a perforated grid 14.
  • This grid 14 consists of the longitudinal threads 15 and the transverse threads 16, which are formed from heat-sealable plastics, for example polypropylene, polyethylene, polyester, polyacrylate, polyamide and polystyrene.
  • the formed between the longitudinal and transverse threads 15 and 16 lattice openings 17 allow for partial opening the metered dispensing of streuruinedem packaged goods, such as spices, salt or pepper, in which the necessary aroma protection should be ensured during storage and after opening the container ,
  • the bonding of the layers 2 and 3 takes place, for example, in a laminating station consisting essentially of a pair of laminating rollers, wherein the layers 2 and 3 are each brought to one another on a roller surface such that the cold-sealing layer 4, which is attached to the layer 2, for example Layer 3, which is guided over the second laminating, facing is. Due to the contact pressure formed in the nip, an adhesive bond between the layers 2 and 3 takes place at room temperature over the cold-sealing layer 4.
  • This composite as exemplified in Fig. 2 is shown, is stored as a roll goods, from which the elements can be punched out for closing in the corresponding lid shape.
  • an opening aid for example a gripping tab 9
  • the glue-free areas can also be provided on the glue-free areas.
  • cover elements 1 which are usually mounted in magazines, can now be used for further use, ie for closing containers 7.
  • the activation of the heat-sealable plastics in the grid 14 takes place such that a composite adhesion in a range of greater than or equal to (5) / 15 mm (measured according to DIN EN 28510-1 "peel test for flexible / rigidly bonded Samples ”) between the lid member 1 and the container edge 8 is generated.
  • 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.
  • 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 / 15 mm.
  • Fig. 1 In the use according to Fig. 1 is at least partially exposed by tearing on the grip tab 9 in the direction of arrow F1, the lattice-shaped structure 14.
  • the free-flowing packaged goods such as spices, salt or pepper
  • the outer layer 2 is only partially removed from the underlying layer 3. This has the consequence that the aroma protection, which is achieved in any case in the unopened state, which is achieved by the bond between the first outer layer 2 and the second inner layer 3 by specifying the cold-sealing layer 4, is also given for the partially opened package.

Landscapes

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

Claims (11)

  1. Elément (1) découpé en forme de couvercle pour fermer des récipients (7), consistant dans une première couche (2) extérieure et dans une deuxième couche (3) intérieure, qui sont reliées l'une à l'autre par leurs faces superficielles (2', 3') dirigées l'une vers l'autre par une couche (4) scellable à froid, la deuxième couche (3) intérieure étant scellable à chaud et l'adhérence entre les couches (2) et (3) étant inférieure à celle entre la deuxième couche (3) intérieure et un bord du récipient (8), caractérisé en ce que la deuxième couche (3) intérieure est conçue dans un treillage percé (14) consistant en matières plastiques scellables à chaud, et en ce que le treillage (14) consiste dans des fils longitudinaux (15) et dans des fils transversaux (16).
  2. Elément découpé en forme de couvercle selon la revendication 1, caractérisé en ce que les fils longitudinaux (15) et les fils transversaux (16) du treillage (14) consistent dans des matières plastiques scellables à chaud, choisies dans le groupe polypropylène, polyéthylène, polyester, polyacrylate, polyamide et polystyrène.
  3. Elément découpé en forme de couvercle selon la revendication 1 ou 2, caractérisé en ce que l'adhérence entre la première couche (2) extérieure et la deuxième couche (3) intérieure est de 0,2 à 4,5 N/15 mm, mesurée selon DIN EN 28510-1.
  4. Elément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'adhérence entre la deuxième couche (3) intérieure et le bord du récipient (8) est supérieure ou égale (≥) à 5 N/15 mm, mesurée selon DIN EN 28510-1.
  5. Elément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la première couche (2) extérieure est un film métallique, de préférence un film en aluminium.
  6. Elément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la première couche (2) extérieure est un film en matière plastique ou une liaison de films en matière plastique.
  7. Elément découpé en forme de couvercle selon la revendication 6, caractérisé en ce que les matières plastiques sont choisies dans le groupe polypropylène, polyéthylène, polyester, polyacrylate, polyamide ou polystyrène.
  8. Elément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la première couche (2) extérieure est munie d'une impression.
  9. Elément découpé en forme de couvercle selon la revendication 8, caractérisé en ce que l'impression présente une surface rugueuse.
  10. Elément découpé en forme de couvercle selon la revendication 9, caractérisé en ce que l'impression à surface rugueuse se présente sous la forme d'écarteurs géométriquement disposés.
  11. Elément découpé en forme de couvercle selon l'une quelconque des revendications 1 à 10, caractérisé en ce que dans la première couche (2) extérieure est prévue une zone libre de liaison, sous la forme d'une aide à l'ouverture, de préférence d'une patte de préhension (9).
EP08011221A 2004-03-18 2005-02-03 Couvercle à deux couches Expired - Lifetime EP1961670B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0048104A AT500261B8 (de) 2004-03-18 2004-03-18 Zweilagenplatine
EP05450022A EP1577226B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05450022.8 Division 2005-02-03
EP05450022A Division EP1577226B1 (fr) 2004-03-18 2005-02-03 Couvercle à deux couches

Publications (2)

Publication Number Publication Date
EP1961670A1 EP1961670A1 (fr) 2008-08-27
EP1961670B1 true EP1961670B1 (fr) 2010-11-17

Family

ID=34831642

Family Applications (2)

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

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05450022A Expired - Lifetime EP1577226B1 (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) DE502005007970D1 (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
EP1577226A1 (fr) 2005-09-21
AT500261B8 (de) 2007-02-15
EP1961670A1 (fr) 2008-08-27
PL1577226T3 (pl) 2010-06-30
DE502005007970D1 (de) 2009-10-08
ES2328710T3 (es) 2009-11-17
AT7937U1 (de) 2005-11-15
EP1577226B1 (fr) 2009-08-26
DE502005010569D1 (de) 2010-12-30
US20050218143A1 (en) 2005-10-06
ATE440790T1 (de) 2009-09-15
DK1577226T3 (da) 2009-12-14
HRP20090427T1 (hr) 2009-10-31
ATE488450T1 (de) 2010-12-15
AT500261B1 (de) 2006-09-15
AT500261A1 (de) 2005-11-15
SI1577226T1 (sl) 2010-01-29

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