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EP2100818A1 - Emballage scellé pouvant être déchiré - Google Patents

Emballage scellé pouvant être déchiré Download PDF

Info

Publication number
EP2100818A1
EP2100818A1 EP08004717A EP08004717A EP2100818A1 EP 2100818 A1 EP2100818 A1 EP 2100818A1 EP 08004717 A EP08004717 A EP 08004717A EP 08004717 A EP08004717 A EP 08004717A EP 2100818 A1 EP2100818 A1 EP 2100818A1
Authority
EP
European Patent Office
Prior art keywords
seam
tear
sealed
edge
sealing seam
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.)
Ceased
Application number
EP08004717A
Other languages
German (de)
English (en)
Inventor
Erfindernennung liegt noch nicht vor Die
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.)
Rainer Naroska Verpackungsmaschinen GmbH and Co KG
Original Assignee
Rainer Naroska Engineering GmbH
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 Rainer Naroska Engineering GmbH filed Critical Rainer Naroska Engineering GmbH
Priority to EP08004717A priority Critical patent/EP2100818A1/fr
Priority to US12/194,893 priority patent/US20090230129A1/en
Publication of EP2100818A1 publication Critical patent/EP2100818A1/fr
Ceased 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5008—Details of flexible tape or foil-like material with a sealing coat
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5013—Details of flexible tape or foil-like material the tape covering almost the whole of the container end panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/504—Details of preformed openings
    • B65D2517/5043—Details of preformed openings provided with a flange
    • B65D2517/5045—Down-turned flange, i.e. extending into container
    • B65D2517/5048—Down-turned flange, i.e. extending into container rolled or folded back, e.g. to avoid sharp edges
    • 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

Definitions

  • the present invention relates to a tear-open sealed package comprising a packaging member having an opening and a tear-open sheet closing the opening according to the preamble of claim 1.
  • 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 subsequently tightly connected to another container part by crimping or another known method.
  • packaging element is intended to denote both complete packages such as cups, sealing dishes or the like and also parts thereof, such as the intermediate rings mentioned.
  • the seam may have a tapering or wavy portion in the region of the tab in order to deviate from the arcuate seam course.
  • the seam is thereby weakened from the inside. This is particularly problematic in packaging that has to withstand increased internal pressure. In places with non-round, e.g. If the tear-off film buckles out, tension peaks can occur that break the seam and lead to leakage. It is therefore desirable in such packaging a possible round seam course, which distributes the internal pressure forces occurring uniformly along the seam. With the attachment of target tear points in the manner described above, this seam can not be agreed.
  • the sealing seam has at least one notch from the outside, which extends inwards from the outer edge of the sealing seam.
  • the extension depth is less than the width of the sealed seam at the respective location.
  • such indentations can be easily attached to round sealing seams.
  • the tear-open film is provided with a free tear-open tab in an edge region at a notch in the sealed seam.
  • the sealing seam has at least two notches, which are spaced apart along the sealing seam.
  • the tab may preferably be arranged between two notches.
  • the tear film can be torn at a location where there are notches to reduce the required tearing force
  • oppositely arranged notches can ensure that the complete detachment of the film from the opening edge is uniform and not here to a sudden increase in the required force leads.
  • 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.
  • seam 18 can therefore be formed by thermal action. It is conceivable in principle, another type of connection, for example by gluing.
  • the tear-open film 14 is at its edge region, which in Fig. 1 is arranged at the top, provided with a free tear tab 20.
  • This tear tab 20 is folded on the top of the tear film 14 and can be detected by the user of the sealed package 10 with your fingers. By pulling on the tear-open tab 20, the tear-open film 14 can be torn open, so that the opening of the packaging element 12 is exposed.
  • the inner edge 22 of the sealed seam 18 is circular.
  • the sealing seam 18 has a notch 26, 28 on each side of the tear-open tab 20.
  • the notches 26,28 are thus spaced apart along the sealing seam 18 and extend from the outer edge 24 of the sealing seam 18 inwardly. The depth of this extension is less than the width of the sealing seam 18 between its inner edge 22 and the outer edge 24. That is, the sealing seam 18 is not completely interrupted by the notches 26,28, but the seal remains intact from its interior.
  • the indentations 26, 28 facilitate the tearing of the tear-open film 14 by pulling on the tear-open tab 20 arranged between the indentations 26, 28.
  • Fig. 1 Unit of packaging element 12 and tear-open film 14 shown is formed by lowering the punched tear-open film 14 onto the packaging element 12, so that the outer edge region 16 of the tear-open film 14 rests on the opening edge 32 of the packaging element 12, and materially connecting the superimposed edges 16 and 32, so that the arrangement in Fig. 4 arises.
  • the sealing seam 18 is created, through which the edges 16 and 32 are sealed tightly together. In particular, it should be a liquid-tight and / or gas-tight seal.
  • the tear film 14 and tear tab 20 become, as in FIG Fig. 2 shown formed from a single blank.
  • the folding of the tear tab 20 on the circular surface of the tear-open film 14 can be carried out in a manner not shown during the seal of the film 14 on the packaging element 12.
  • the sealing of the edges 16 and 32 with each other can be done by a suitable stamping tool by which the tear-open film 14 and the packaging element 12 are pressed against each other from above or below. During the pressing process, the sealing point is heated. Alternatively, it is possible to supply the heat necessary for the sealing to the packaging element 12 before the pressing.
  • packaging element 12 and tear-open film 14 is subsequently connected to a container, not shown, for example by crimping the outer edge 34 of the packaging element 12 with the upper edge of the container.
  • a container not shown
  • the term "packaging element" therefore, for the purposes of the present invention, refers both to parts of the packaging, such as the intermediate ring of the present embodiment shown in the figures, or to integrally molded packages.
  • the notches 26,28 each have the shape of a circular arc-shaped cutout in the outer edge 24 of the sealed seam 18.
  • the depth of these cutouts is in each case smaller than the width B of the sealed seam at the location of the respective notch.
  • the course of the sealing seam 18 is not completely interrupted at any point.
  • the inner edge 22 of the sealed seam 18 retains its round shape and is not reached by the notches 26,28.
  • the indentations 26, 28 are relatively flat, that is, their width in the circumferential direction is considerably greater than their depth in the radial direction.
  • the radii of the circular arcs of the cut-out edges of the indentations 26, 28 are greater than the width B of the sealed seam 18, i. the center of these circular arcs 38 lies relatively far outside the seam 18.
  • the indentations 26, 28 do not necessarily have to have the cut-out shape shown here, but the shape may deviate therefrom. In particular, shallower or less flat notches 26, 28 are also conceivable, as well as V-shaped cutouts, etc. The distance between the notches 26, 28 can also be changed.
  • the conventional sealed seam 118 is not provided with indentations, ie both its inner edge 122 and its inner edge Outer edge 124 are formed without interruption circular, and the sealing seam 118th has along its entire circumference a width B corresponding to the inventive sealing seam 18.
  • the size of the force required for further tightening the tab 120 depends on the instantaneous material resistance at the parting line 50. This in turn is determined by the length of the section or sections of the parting line 50 which run over the sealing seam 118, ie via which a contact with the sealing seam 118 exists, which must be released by exerting a tensile force.
  • the tab 120 is partially withdrawn from the sealing seam 118, but only so far that the dividing line 50 has not yet fully exceeded the full width B of the sealed seam 118. That is, the sealing seam 118 is still intact from the inside of the sealed packaging, and the opening is still closed.
  • Fig. 9 shows the sealed package 10 with the sealed seam 18 according to Fig. 5 , which is provided with the two notches 26,28.
  • the situation in Fig. 9 corresponds to that in Fig. 7 in which the parting line 50 between detached and still adhering part of the tear-open film 14 has just exceeded the complete width B of the sealed seam 18 and has reached the inner edge 22 of the seam 18.
  • the tear-off edge 62 is considerably shorter than the tear-off edge 56 in FIG Fig. 7 , This is achieved by the notches 26, 28 over which the dividing line 50 travels during the pulling-up movement.
  • the notches 26,28 shorten in the in Fig. 9 the situation shown Length of the tear-off edge 62 from the lateral ends and reduce the contact area with the film 14. The material resistance is thereby reduced, and the force F required for mounting decreases (see the 2 'marked curve in FIG Fig. 10 ).
  • the indentations 26, 28 are arranged at an angular distance on the circumference of the sealing seam 18 in such a way that the parting line 50, which shifts inwards parallel to its course during the winding-up movement, has just passed the indentations 26, 28 in the moment in which the inner edge 22 of the sealed seam 18 has already been reached and no critical force peaks can occur more.
  • the notches 26,28 are arranged in a strip-shaped region which is bounded by two parallel straight lines, one of which is a straight line tangent of the outer edge 24 of the sealed seam 18 and the other straight line tangent of the inner edge 22, which is also a secant the outer edge 24 forms.
  • the sealing seam 18 is practically not weakened from the inner region of the opening of the sealed packaging 10.
  • the invention is therefore particularly suitable for use on sealed packaging, which must withstand increased internal pressure, since the compressive force can distribute evenly along the circular inner edge 22 of the sealing seam 18 and no tension of the tear film 14 take place. Nevertheless, the tearing process is greatly facilitated by the attachment of the notches 26,28 and can be made more uniform.
  • the desired effect of weakening the material resistance at the tear-open point can also be achieved by a single notch. If, for example, one of the two notches 26 or 28 of the embodiment described above is left so that the respective other notch remains, the tear-off edge 56 is only shortened from one of its ends. The effect of reducing the tensile force to be applied may be slightly lower in this case. Nevertheless, the process of tearing open the film is noticeably easier for the user.
  • indentations can of course also be attached to sealing seams, one of Fig. 5 have a different course and are not circular. It is conceivable, for example, the attachment to an arcuately rounded corner of a substantially rectangular sealing seam, to an oval sealed seam or the like. Also in this regard, the embodiment described above from the Fig. 1 to 10 not limiting for the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
EP08004717A 2008-03-13 2008-03-13 Emballage scellé pouvant être déchiré Ceased EP2100818A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08004717A EP2100818A1 (fr) 2008-03-13 2008-03-13 Emballage scellé pouvant être déchiré
US12/194,893 US20090230129A1 (en) 2008-03-13 2008-08-20 Tear-open seal packaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08004717A EP2100818A1 (fr) 2008-03-13 2008-03-13 Emballage scellé pouvant être déchiré

Publications (1)

Publication Number Publication Date
EP2100818A1 true EP2100818A1 (fr) 2009-09-16

Family

ID=39588056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08004717A Ceased EP2100818A1 (fr) 2008-03-13 2008-03-13 Emballage scellé pouvant être déchiré

Country Status (2)

Country Link
US (1) US20090230129A1 (fr)
EP (1) EP2100818A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2947996A1 (fr) * 2009-07-15 2011-01-21 Oreal Dispositif rechargeable de conditonnement d'un produit cosmetique, et recharge associee
US20120043324A1 (en) * 2010-08-18 2012-02-23 Silgan Containers Llc Container with Reduced, Peel-Off-Force Tear Configuration

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540105A (en) * 1984-08-13 1985-09-10 General Can Company, Inc. Closure opening having protective bead
EP0344340A1 (fr) 1988-05-31 1989-12-06 Toyo Aluminium Kabushiki Kaisha Récipient d'emballage résistant à un traitement thermique
CH680422A5 (fr) * 1989-11-29 1992-08-31 Alusuisse Lonza Services Ag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890758A (en) * 1988-09-02 1990-01-02 Continental Can Company, Inc. Closure with improved pull tab
US20070272693A1 (en) * 2006-05-26 2007-11-29 Sonoco Development, Inc. Membrane Lid with Recessed Tab, and Container Incorporating Same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540105A (en) * 1984-08-13 1985-09-10 General Can Company, Inc. Closure opening having protective bead
EP0344340A1 (fr) 1988-05-31 1989-12-06 Toyo Aluminium Kabushiki Kaisha Récipient d'emballage résistant à un traitement thermique
CH680422A5 (fr) * 1989-11-29 1992-08-31 Alusuisse Lonza Services Ag

Also Published As

Publication number Publication date
US20090230129A1 (en) 2009-09-17

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