EP2957521A1 - Fermeture d'emballage refermable - Google Patents

Fermeture d'emballage refermable Download PDF

Info

Publication number
EP2957521A1
EP2957521A1 EP14425079.2A EP14425079A EP2957521A1 EP 2957521 A1 EP2957521 A1 EP 2957521A1 EP 14425079 A EP14425079 A EP 14425079A EP 2957521 A1 EP2957521 A1 EP 2957521A1
Authority
EP
European Patent Office
Prior art keywords
film
label
hinge
container
repositionable
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Withdrawn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
EP14425079.2A
Other languages
German (de)
English (en)
Inventor
Pasquale De Lucia
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.)
Domenico De Lucia SpA
Original Assignee
Domenico De Lucia SpA
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 Domenico De Lucia SpA filed Critical Domenico De Lucia SpA
Priority to EP14425079.2A priority Critical patent/EP2957521A1/fr
Publication of EP2957521A1 publication Critical patent/EP2957521A1/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Withdrawn legal-status Critical Current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
    • B65D77/10—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
    • 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
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2096—Adhesive means

Definitions

  • the invention relates to a resealable package closure for containers having as their cover a film heat sealed to their upper edge. Such containers are generally used for packaging food.
  • the term “repositionable” of a label or other should be understood as equivalent to the phrase “that can be detached and reattached”.
  • the term “permanent” as referred to a portion or element should be understood as equivalent to the phrase “that remains attached to the package in a normal use thereof”.
  • the terms “permanent” and “repositionable” should be understood from a functional point of view rather than in relation to their adhesive nature. Indeed, the feature of being “more or less detachable” or “permanent” for an adhesive substance is a function of the substrate on which it is laid.
  • the shape of the label in the zone of the hinge is sometimes what maintains a portion of the label attached to the film upstream of the zone of the hinge to prevent the tear off.
  • the label withstands without both being detached and broken only because of the material and the shape of the label.
  • the present invention provides a resealable package closure as defined in claim 1 and dependent claims.
  • the resealable package closure is intended for a container shown in a top view in Figure 1 .
  • the container has a top edge 1 to which a film 2 that closes hermetically the container completely covering the top edge 1, is adhered by heat sealing.
  • Attached on the film 2 is a repositionable label 3, including an opening tab 4 and an opposite hinge 5 having an axis of rotation r about which the repositionable label 3 rotates in opening the container.
  • the repositionable label 3 is attached above the film 2 by an adhesive substance c indicated by dots that is not permanent in the meaning of the term given above.
  • the repositionable label 3 and the film 2 form two superimposed layers.
  • the repositionable label 3 covers the film 2 in both a central area 6 and a contour area 8, which surrounds the central area 6.
  • the central area is delimited in the film 2 itself by a rupturable weakening line 7 indicated schematically by partial circles. It is worth repeating that the rupturable weakening line is made only in the film 2 and it is shown in transparency under the repositionable label.
  • the retaining force exerted between the central area 6 and the contour area 8 of the film 2 along the rupturable weakening line 7 is less than the adhesion force applied by the non-permanent adhesive substance between the repositionable label 3 and the film 2.
  • the repositionable label 3 has the advantage to be openable in order to allow access to the container, which may possibly be closed by reattaching the repositionable label 3 on the contour area 8 of the film 2.
  • the rupturable weakening line 7 forms two symmetrical tracts 7a, 7b separated by a non-rupturable portion 7c facing the opening tab 4, and by the hinge 5.
  • a rectangular zone 9 of adhesive substance is provided between the opening tab 4 and the non-rupturable portion 7c.
  • adjacent to the a rectangular zone 9 of adhesive substance are two tamper-proof zones 10, 11 that will be described below.
  • the two tamper-proof zones 10, 11 in the vicinity of the opening tab 4, are elongated and have a pattern that identifies them in the resealable package closure according to the present invention, and therefore the pattern is different from the color of the film 2 and the repositionable label 3.
  • the two tamper-proof zones 10, 11 have a jagged line 14 of fracture that covers the boundary between the film 2 and the repositionable label 3.
  • FIG. 2 is a perspective view of the resealable package closure in Figure 1 in an open condition.
  • the container is indicated as R.
  • Heat sealed to the edge 1 of the container R is the film 2 comprising a heat sealed area indicated as 15, the contour area 8 and the central area 6.
  • the label 3 is shown as lifted with respect to the hinge 5 upon the rupture of the rupturable weakening line indicated in its tracts 7a and 7b in which each circle is reduced schematically to a half. The other half of each circle, even if not visible in Figure 2 , limit the central area 6 of the film 2 that remains attached by the adhesive c to the label 3.
  • the adhesive c between the label 3 and the central area 6 of the film 2 is not shown in Figure 2 .
  • the adhesive c is depicted both in the contour area 8 of the film 2 and in a correspondent contour area 80 of the label 3 in order to show that said areas are attachable again each other.
  • the material of the repositionable label 3 in accordance with invention can be for example paper, polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), or different.
  • PET polyethylene terephthalate
  • PE polyethylene
  • PVC polyvinyl chloride
  • PP polypropylene
  • the non-rupturable portion 7c and the hinge 5, which connect the tracts 7a, 7b of the rupturable weakening line 7, avoid that the opening area yields under the weight exerted on the repositionable label 3.
  • the consumer lifts the opening tab 4; continuing the operation, the progressive lifting of the repositionable label 3 breaks along the tracts 7a, 7b of the rupturable weakening line 7 the film 2 to which the repositionable label 3 is attached by the non-permanent adhesive substance c.
  • the full rotation of the repositionable label 3 about the axis of rotation r of the hinge 5 is achieved because the force applied in the lifting is sufficient to break the rupturable weakening line 7 but not to separate the repositionable label 3 from the film 2 that is peripherally joined in a permanent manner in its heat sealed area 15 to the edge 1 of the container R.
  • the consumer positions again the repositionable label 3 retaining the central area 6 of the film 2 to the contour area 8 along which the adhesive substance c allows the temporary seal between the repositionable label 3 and the film 2.
  • the grooves 12 to facilitate the rotation of the repositionable label 3 and the notches 13 against the tear of the hinge 5 that are provided in the zone adjacent to the hinge 5 determine a compromise with the size of the repositionable label 3 detached up to the area of the hinge 5 and with its rigidity, also called "hand".
  • the effect obtained is that the repositionable label 3 remains open due its own weight increased by the weight of the central area 6 of the film 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
EP14425079.2A 2014-06-20 2014-06-20 Fermeture d'emballage refermable Withdrawn EP2957521A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14425079.2A EP2957521A1 (fr) 2014-06-20 2014-06-20 Fermeture d'emballage refermable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14425079.2A EP2957521A1 (fr) 2014-06-20 2014-06-20 Fermeture d'emballage refermable

Publications (1)

Publication Number Publication Date
EP2957521A1 true EP2957521A1 (fr) 2015-12-23

Family

ID=51357889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14425079.2A Withdrawn EP2957521A1 (fr) 2014-06-20 2014-06-20 Fermeture d'emballage refermable

Country Status (1)

Country Link
EP (1) EP2957521A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619137A1 (fr) * 2004-07-23 2006-01-25 Kraft Foods Holdings, Inc. Fermeture inviolable et refermable
WO2008086389A2 (fr) * 2007-01-10 2008-07-17 Avery Dennison Corporation Emballage refermable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619137A1 (fr) * 2004-07-23 2006-01-25 Kraft Foods Holdings, Inc. Fermeture inviolable et refermable
WO2008086389A2 (fr) * 2007-01-10 2008-07-17 Avery Dennison Corporation Emballage refermable

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