EP0478870A1 - Réceptacle d'emballage multi couche - Google Patents

Réceptacle d'emballage multi couche Download PDF

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Publication number
EP0478870A1
EP0478870A1 EP90811012A EP90811012A EP0478870A1 EP 0478870 A1 EP0478870 A1 EP 0478870A1 EP 90811012 A EP90811012 A EP 90811012A EP 90811012 A EP90811012 A EP 90811012A EP 0478870 A1 EP0478870 A1 EP 0478870A1
Authority
EP
European Patent Office
Prior art keywords
edge
container
packaging container
inner 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.)
Withdrawn
Application number
EP90811012A
Other languages
German (de)
English (en)
Inventor
Walter Schellenberg
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.)
Sandherr Packungen AG
Original Assignee
Sandherr Packungen 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 Sandherr Packungen AG filed Critical Sandherr Packungen AG
Publication of EP0478870A1 publication Critical patent/EP0478870A1/fr
Withdrawn legal-status Critical Current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
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/0413—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton
    • B65D77/0433—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton the inner container being a tray or like shallow container, not formed by folding or erecting one or more blanks
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/60—Loose, or loosely attached, linings

Definitions

  • the invention relates to a packaging container, the wall of which is multi-layered, a thinner inner layer consisting of a thermoformed plastic film corresponding to a stackable container shape with an integrally formed edge for fastening a lid, and wherein a thicker outer layer consists of cardboard and extends to the edge of the inner layer, so that the inner layer lies against the outer layer along the entire bottom and peripheral wall of the packaging container.
  • a container of this type is for packaging e.g. Margarine at the moment widespread.
  • the thicker outer layer of cardboard has an inner plastic coating, and it is bent from a cardboard blank to the container shape before it is combined with the inner layer in the deep-drawing mold to produce it.
  • the plastic coating of the outer layer welds with the heated plastic material of the inner layer, and a firm bond is created along the entire surface.
  • the invention is based on the object of improving a container of the type mentioned in such a way that the consumer can detach the plastic material of the inner layer in a simple manner and without aids from the cardboard material of the outer layer in order to dispose both materials separately for waste disposal.
  • this object is achieved in that, for the different materials of the two layers to be easy to separate, the connection between the inner layer and the outer layer is limited to the opening-side container edge region, on which both releasably engage in one another by an edge region of the deep-drawn inner layer being a bead reaches behind the edge of the outer layer.
  • This form-fitting connection along the opening-side edge of the container ensures a secure bond between the two layers of the container wall, which are loosely but close to each other due to their mutually adapted shape.
  • connection on the opening-side container edge also leads to an advantageous additional reinforcement of this container edge, since this protrudes outwards due to the stackable shape of the packaging container and because there is a holder or fastening of a container closure, when it is removed, e.g. forces are introduced by destroying a sealed connection.
  • the thicker outer layer can be produced in a winding process from a strip material or by folding from a cardboard blank.
  • the edge bead of the thicker outer layer can be produced by flanging, as is known per se for cardboard containers.
  • the interlocking edge of the inner layer can be produced in a simple manner when the inner layer is deep-drawn.
  • the packaging container 1 has a flat bottom 2 and four side walls 3, which extend slightly outwards to the opening-side container edge 4, so that it can be stacked with numerous identical packaging containers before filling, as shown in FIG. 5.
  • the packaging container 1 has its required rigidity through an outer cardboard layer 5, while its tightness is ensured through a much thinner inner layer 6 made of plastic.
  • FIG. 6 shows a cardboard blank 7 for the production of a container-shaped prototype for the formation of the outer layer 5 of the packaging container.
  • the parts 8 to 11 of the blank are bent upwards along the fold lines 12 to 15, the narrow-side blank parts 9, 11 being placed on the outside over the curved ends 16, 17 and 18, 19 and along adhesive lines 20 to 23 these are glued.
  • the opening-side edge 25, 26 of such a container-shaped preform is then provided with an outwardly directed flanged edge 27, as enlarged in FIG Fig. 2 to 4 is shown.
  • a second container-shaped preform is deep-drawn from a plastic film, so that it corresponds to the inner shape of the other preform made of cardboard and also has an edge 28, 29, 30, which is suitable due to a bent back shape that is open towards the bottom is to be snapped over the bead 27 of the outer layer 5 so that it encompasses it, as shown in FIGS. 2 to 4.
  • the representations in FIGS. 2 to 4 show different possibilities for the shaping of this comprehensive edge 28 to 30.
  • This edge 28, 29 or 30 runs outwards over an arch piece 31, 32 or 33 engaging underneath the bead 27 of the outer cardboard layer 5 to an outwardly projecting outer edge 34, 35 or 36, along which the deep-drawn preform is punched out of the starting piece of the film has been.
  • This protruding outer edge 34, 35 or 36 can serve as a grip edge if the inner layer 6 made of plastic is to be detached from the outer layer 5 made of cardboard again for separate waste disposal.
  • a lateral grip tab 37 can also be formed on its outer edge 34, 35 or 26.
  • a grip tab 39 can also be provided on its edge, which adjoins the bead 27 on the outside. The attachment of these grip tabs 37, 39 indicates to the consumer that the layers 5, 6 of the packaging container 1 can be separated from one another.
  • the illustrated shape of the container edge 4 has the advantage that the packaging container 1 can be closed by a deep-drawn plastic cover 38, as in the case of a packaging container of the known type mentioned at the beginning, in that a circumferential groove 41 encompasses the container edge 4. In the corner area of this plastic cover 38 there is a grip tab 40 so that it can be easily lifted off. An airtight seal can be achieved by sealing a sealing film (not shown) onto the container edge 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)
EP90811012A 1990-10-01 1990-12-20 Réceptacle d'emballage multi couche Withdrawn EP0478870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH315190 1990-10-01
CH3151/90 1990-10-01

Publications (1)

Publication Number Publication Date
EP0478870A1 true EP0478870A1 (fr) 1992-04-08

Family

ID=4249720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90811012A Withdrawn EP0478870A1 (fr) 1990-10-01 1990-12-20 Réceptacle d'emballage multi couche

Country Status (1)

Country Link
EP (1) EP0478870A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513606A1 (fr) * 1991-05-10 1992-11-19 Cartotecnica Poligrafica Bianchi S.P.A. Emballage en grande partie en carton, imperméable aux liquides et aux gaz, spécialement conçu pour des aliments
FR2979329A1 (fr) * 2011-08-26 2013-03-01 Cgl Pack Service Barquette composite a imbrication

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371847A (en) * 1965-12-03 1968-03-05 Owens Illinois Inc Container and closure means therefor
US3403812A (en) * 1967-01-30 1968-10-01 Phillips Petroleum Co Container closure
US3423004A (en) * 1966-05-05 1969-01-21 Od W Christensson Package with hinged lid
GB1234683A (fr) * 1969-02-22 1971-06-09
DE2231262A1 (de) * 1971-06-30 1973-01-18 Christenssons Maskiner Verpackungsbehaelter und verfahren zu seiner herstellung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371847A (en) * 1965-12-03 1968-03-05 Owens Illinois Inc Container and closure means therefor
US3423004A (en) * 1966-05-05 1969-01-21 Od W Christensson Package with hinged lid
US3403812A (en) * 1967-01-30 1968-10-01 Phillips Petroleum Co Container closure
GB1234683A (fr) * 1969-02-22 1971-06-09
DE2231262A1 (de) * 1971-06-30 1973-01-18 Christenssons Maskiner Verpackungsbehaelter und verfahren zu seiner herstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513606A1 (fr) * 1991-05-10 1992-11-19 Cartotecnica Poligrafica Bianchi S.P.A. Emballage en grande partie en carton, imperméable aux liquides et aux gaz, spécialement conçu pour des aliments
FR2979329A1 (fr) * 2011-08-26 2013-03-01 Cgl Pack Service Barquette composite a imbrication

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Effective date: 19921009