EP2184238A1 - Emballage scellé pouvant être déchiré - Google Patents

Emballage scellé pouvant être déchiré Download PDF

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Publication number
EP2184238A1
EP2184238A1 EP09013885A EP09013885A EP2184238A1 EP 2184238 A1 EP2184238 A1 EP 2184238A1 EP 09013885 A EP09013885 A EP 09013885A EP 09013885 A EP09013885 A EP 09013885A EP 2184238 A1 EP2184238 A1 EP 2184238A1
Authority
EP
European Patent Office
Prior art keywords
tear
tab
film
open
sealed
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Withdrawn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
EP09013885A
Other languages
German (de)
English (en)
Inventor
Marcus Naroska
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2184238A1 publication Critical patent/EP2184238A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure
    • 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
    • B65D2577/2066—Means on, or attached to, container flange facilitating opening, e.g. non-bonding region, cut-out
    • 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 present invention relates to a tear-open sealed package having a packaging member having an opening and a tear-open sheet closing the opening according to the preamble of claim 1.
  • a container for receiving the product is in this case closed by a sealing foil, which may consist of aluminum, plastic or a composite material.
  • the container is formed by an integrally molded part
  • a part may be an intermediate ring, the opening of which is first sealed with the tear-open film and which is then tightly connected by crimping or another known method with another container part.
  • packaging element is intended to denote both complete packages such as cups, sealing shells or the like, as well as parts thereof, such as the said intermediate rings.
  • Sealed packages must be dense, stable, and resistant to damage, and especially to known methods of preserving the contents of the package.
  • the requirements for the strength of the sealed seam between sealing film and packaging element are particularly high because resulting internal pressures push the film outward and can destroy the weakened by the influence of temperature anyway sealed seam.
  • a reliable seal can be achieved in addition to the selection of suitable sealing materials and shapes of the packaging element (eg angled sealing seam), especially by broadening the sealing seam.
  • a strong sealed seam leads to a difficult tearing of the film.
  • Particularly critical here is the sealing seam in the area of the tab of the film. At the beginning of the opening process occur here usually very high tearing forces. If an arcuate seam is torn from the outside, the force required for further tearing first increases strong, since the length of the trailing edge, ie the width of the sealing connection between the film and the opening edge of the packaging element is initially very large.
  • Object of the present invention is therefore to provide a sealed package of the type mentioned, which can be opened by the consumer easily and with little effort despite a particularly strong sealed seam.
  • the tab is in this case divided into several parts or divisible, for example in two tab halves, which allow the consumer to pull the tear-off film in two tearing operations from the packaging element.
  • the tear forces occurring are considerably less than in the case in which the sealing film must be separated in one piece from the packaging element.
  • the consumer can first grasp a first tab part and exert a pull on it, which generates a tear line in the film surface starting from the division between the tabs. If a film part has been completely removed from the packaging element, the remaining film part can be removed by exerting a pull on the remaining flap part.
  • the pulling direction can be chosen so that one follows the course of the sealed seam, so that the Aufreiss mechanism are very low.
  • the flap parts can either be completely separated from one another physically, or they hang together along a desired dividing line, along which the flap parts can be easily separated by hand and without external aids.
  • the pitch of the tab is formed by a desired tear line formed by scribing, embossing, perforation or the like of the tab.
  • the flap parts hang, as described above, still physically together along the desired tear line. This is designed such that it yields when a small force exerted, so that the flap parts separate from each other.
  • the division is formed by an incision, along which the surface regions of the adjoining flap parts are physically separated from one another.
  • the incision is wedge-shaped.
  • the mutually facing edges of adjacent flap parts in this case do not adjoin one another, but instead enclose a wedge angle with one another.
  • the wedge may extend from the end of the tab to the edge of the sealed seam.
  • the tab is folded over and at least partially sealed or glued to the surface of the tear-open film.
  • the tear-open seal packaging 10 in Fig. 1 comprises an annular packaging element 12, namely an intermediate ring, which forms the upper edge of a package.
  • the opening of the ring is closed by a tear film 14 with a substantially circular peripheral edge 16.
  • the outer edge region 16 of the tear-open film 14 is connected to the opening edge of the packaging element 12 by a circular sealed seam 18.
  • This sealing seam 18 is formed, for example, by melting a fusible coating on the underside of the tear-open film 14 with the aid of a stamping tool, so that the tear-open film 14 and the packaging element 12 enter into a cohesive connection with one another.
  • the sealed seam 18 can thus be formed by thermal action. It is conceivable in principle, a kind of connection, for. B. by gluing.
  • the tear-open film 14 is at its edge region, which in Fig. 1 is arranged above, provided with a tear tab 20.
  • This tear tab 20 is unfolded on the free top of the tear-open film 14.
  • the surface of the tear-open foil 14 is provided with a seal coating 22, which ensures cohesion of the tear-open tab 20 and the tear-open foil 14 folded thereon.
  • a seal coating may also be exclusively or additionally on the underside of the folded flap.
  • the attachment of the seal coating 22 is not essential to the principle of the invention.
  • the perforation line 24 extends from the end 30 of the tear-open tab 20 to the seal seam 18, so that the tear-open tab 20 is divided along its entire length into two tab members 26, 28. Since the partition is formed by a perforation 24 in the present embodiment, the two flap pieces 26, 28 physically fit together, but can be easily separated from each other. For this purpose, a user can take a flap part 28 and remove it from the sealing surface 22. Here, as in Fig. 2 is shown, this flap portion 28 along the perforation 24th demolished from the remaining flap portion 26. The latter remains sealed on the sealing surface 22.
  • the perforation 24 thus forms a desired tear line, along which the flap parts 26,28 are separated from each other, without any of the respective flap portions 26,28 itself being torn.
  • Fig. 7 shows a conventional, not according to the invention corresponding sealed packaging 100 with a one-piece, non-divided tear tab 120.
  • a train in the direction of arrow C must be applied to the packaging center.
  • the tearing force then acts along a line which separates the already detached part of the tearing film 114 from the area of the film 114, which is still firmly connected to the packaging element 112 by the sealing seam 118.
  • This parting line 150 corresponds to a chord which connects two points of the circular outer edge of the tear-open film 114.
  • the magnitude of the instantaneous force required to rupture the packaging film 114 depends on the instantaneous material resistance at the parting line 150. This in turn is determined by the length of the section or sections of the dividing line 150 which run over the sealing seam 118, that is, via which there is still contact with the sealing seam 118, which must be released by exerting the tensile force.
  • This section of the dividing line 150 can also be referred to as the tear-off edge 152.
  • the length L 1 of this trailing edge 152 becomes very large in the conventional sealed package 100, so that the force to be expended for overcoming the resistance for releasing the tearing film 114 from the sealing seam 118 becomes correspondingly large. In the situation according to Fig. 7 Therefore, an undesirable force peak is generated.
  • the length L 2 of the tear-off edge 52 in the sealed package 10 according to the invention is relatively small when first a first flap portion 28 is detected to rupture a portion 32 of the tear-open film 14 and a train is applied thereto.
  • the length of this tear-off edge 52 does not change significantly, so that a uniform tearing is made possible until the part 32 of the tear-open foil 14 is completely removed.
  • a similar effect occurs.
  • a force peak, as in the tearing of a conventional sealed package 100 in the situation according to Fig. 7 occurs is avoided.
  • the tensile force for separating the sealing film along the tear line 34 is very small compared to the tensile force for releasing the tearing film from the sealed seam.
  • the size of the force to pull off the first film part is therefore only insignificantly influenced by the tearing of the film.
  • Fig. 9 shows a further embodiment of a sealed package 60 according to the invention, in which the division of the flap 62 is formed by a wedge-shaped incision 64 which separates two flap parts 66,68 from each other.
  • the mutually facing edges 70, 72 of the approximately rectangularly formed lug portions 66, 68 thus do not adjoin one another directly but close a wedge angle ⁇ (FIG. Fig. 10 ) with each other.
  • a small notch-shaped incision 74 is made in the surface area of the tear-open film 114, which rests on the packaging element 12. This incision 74 facilitates the tearing of a tab portion 66 or 68th
  • the perforation line 24 from the first embodiment of the sealed package 10 can be replaced by a dividing line which completely physically separates the two flap sections 26, 28, ie, through a section 82 which extends approximately through the center of the flap 20.
  • the two separate flap portions 26,28 can then rest before the lifting and tearing intact on the sealing surface 22 first.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
EP09013885A 2008-11-06 2009-11-05 Emballage scellé pouvant être déchiré Withdrawn EP2184238A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200820014733 DE202008014733U1 (de) 2008-11-06 2008-11-06 Aufreissbare Siegelverpackung

Publications (1)

Publication Number Publication Date
EP2184238A1 true EP2184238A1 (fr) 2010-05-12

Family

ID=41528709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013885A Withdrawn EP2184238A1 (fr) 2008-11-06 2009-11-05 Emballage scellé pouvant être déchiré

Country Status (2)

Country Link
EP (1) EP2184238A1 (fr)
DE (1) DE202008014733U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2208554A3 (fr) * 2009-01-16 2011-02-16 Soudronic AG Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile
WO2015033758A1 (fr) * 2013-09-03 2015-03-12 マルハニチロ株式会社 Récipient à ouverture facile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH704695A1 (de) * 2011-03-25 2012-09-28 Soudronic Ag Vorrichtung und Verfahren zur Herstellung von Aufreissdeckeln.
CH716493A1 (de) * 2019-08-13 2021-02-15 Soudronic Ag Aufreissdeckel.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252124B (de) * 1967-10-12 Ohler Eisenwerk Theob Pfeiffer OhIe (Westf) Verpackungsbehälter
US3391852A (en) * 1965-10-23 1968-07-09 Reynolds Metals Co Container construction and parts and blanks therefor or the like
DE2140733A1 (de) * 1971-08-13 1973-02-22 Wagner Fa Wilhelm Behaelter fuer fertiggerichte oder dergleichen
DE3241962A1 (de) * 1982-11-12 1984-05-17 Andreas 8070 Ingolstadt Böck Deckelfolie
FR2834695A1 (fr) * 2002-01-16 2003-07-18 Alsacienne Aluminium Opercule destine a fermer un recipient et a etre enleve partiellement pour permettre l'acces au produit conditionne dans le recipient
EP1386852A1 (fr) * 2002-07-26 2004-02-04 Crown Cork & Seal Technologies Corporation Structure pour couvercle
WO2004045979A1 (fr) * 2002-11-20 2004-06-03 Durafood Co., Ltd. Recipient de type gobelet pour le conditionnement d'aliments
DE102005026903A1 (de) * 2005-02-25 2006-08-31 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Schlauchbeutel mit Deckel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252124B (de) * 1967-10-12 Ohler Eisenwerk Theob Pfeiffer OhIe (Westf) Verpackungsbehälter
US3391852A (en) * 1965-10-23 1968-07-09 Reynolds Metals Co Container construction and parts and blanks therefor or the like
DE2140733A1 (de) * 1971-08-13 1973-02-22 Wagner Fa Wilhelm Behaelter fuer fertiggerichte oder dergleichen
DE3241962A1 (de) * 1982-11-12 1984-05-17 Andreas 8070 Ingolstadt Böck Deckelfolie
FR2834695A1 (fr) * 2002-01-16 2003-07-18 Alsacienne Aluminium Opercule destine a fermer un recipient et a etre enleve partiellement pour permettre l'acces au produit conditionne dans le recipient
EP1386852A1 (fr) * 2002-07-26 2004-02-04 Crown Cork & Seal Technologies Corporation Structure pour couvercle
WO2004045979A1 (fr) * 2002-11-20 2004-06-03 Durafood Co., Ltd. Recipient de type gobelet pour le conditionnement d'aliments
DE102005026903A1 (de) * 2005-02-25 2006-08-31 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Schlauchbeutel mit Deckel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2208554A3 (fr) * 2009-01-16 2011-02-16 Soudronic AG Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile
WO2015033758A1 (fr) * 2013-09-03 2015-03-12 マルハニチロ株式会社 Récipient à ouverture facile

Also Published As

Publication number Publication date
DE202008014733U1 (de) 2010-03-25

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