AT13463U1 - Closing foil with integrated opening - Google Patents

Closing foil with integrated opening Download PDF

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Publication number
AT13463U1
AT13463U1 ATGM8062/2013U AT80622013U AT13463U1 AT 13463 U1 AT13463 U1 AT 13463U1 AT 80622013 U AT80622013 U AT 80622013U AT 13463 U1 AT13463 U1 AT 13463U1
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AT
Austria
Prior art keywords
film
packaging
removal
section
characterized
Prior art date
Application number
ATGM8062/2013U
Other languages
German (de)
Inventor
Juergen Wiesenegger
Borko Miljkovic
Original Assignee
Wiesenegger 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
Family has litigation
Application filed by Wiesenegger Gmbh filed Critical Wiesenegger Gmbh
Priority to ATGM8062/2013U priority Critical patent/AT13463U1/en
Priority to AT17692011A priority patent/AT512261A1/en
Publication of AT13463U1 publication Critical patent/AT13463U1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47227661&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AT13463(U1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D77/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10Container closures formed after filling
    • B65D77/20Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024Container 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
    • B65D77/2028Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044Means 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
    • B65D77/2048Means 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

Abstract

The invention relates to a closure film (10) for closing a packaging package (2) at its packaging edge (3), comprising at least one weakening line (11) defining the periphery of a removal section (14) through which removal section (14) in the opened state a package content ( 4, 5) is removable, wherein the closure film (10) comprises a single layer group (100).

Description

Austrian Patent Office AT13 463U1 2014-01-15

Description: [0001] The invention relates to a sealing film for closing a packaging border at its packaging edge, comprising at least one weakening line defining the periphery of a removal section, through which removal section a package contents can be removed in the opened state. Furthermore, the invention relates to a packaging comprising a packaging container as well as a sealing film for closing the packaging package at its packaging edge.

Different designs of foils for closing easily openable packages are known from the prior art.

From the document DE 20 2011 004 614 U1, for example, a film lid with a multilayer film for closing a container is known. The Foliendeckel has for this purpose a first and a second layer group of composite layers and a be-signed as a carrier covering material. Both the first and the second layer group each comprise at least one layer of a packaging film with peelable, ie peelable properties and at least one further layer of a packaging film with festsiegelnden properties with respect to the container material used.

The film layer with festsiegelnden properties of the first layer group is attached directly to the container and facing the container contents. The first layer group has a weakening zone defining the periphery of an opening which is spaced from the container edge within the multi-layer film. The second layer group arranged above the first layer group is pulled off the first layer group when an opening tab is raised. The material of the first layer group located within the opening or weakening zone is torn at the opening edge and adheres to the second layer group. In this case, the opening in the first layer group is released and the container contents can be removed or emptied.

A disadvantage of this design is the extremely complex structure of the multilayer film. For their production, individual layers of different film materials, each with different properties in exactly predetermined order to several separate layer groups must be connected together.

The invention has for its object to overcome the disadvantages of the prior art and to provide a sealing film with an integrated opening, which is inexpensive to manufacture and therefore very versatile for a variety of applications can be used.

This object is achieved with a closure film according to the preamble of claim 1 with the features of the characterizing part of claim 1. The subclaims relate to further particularly advantageous embodiments of the invention.

Advantageously, in a closure film according to the invention for closing a packaging bundle at its packaging edge, comprising at least one weakening line defining the periphery of a removal section, through which removal section in the opened state a packaging content can be removed, the closure film a single layer group.

A closure film according to the invention with a weakening line, which defines an integrated removal section, offers numerous advantages. The sealing film is simple and inexpensive to manufacture. Due to its construction with a single layer group, it is particularly versatile for a wide variety of packaging tasks. The size of the removal section required for portion-wise removal of the contents of the packaging can be adapted particularly easily to the respective packaging containers. Thus, it is possible, for example, to close foodstuffs both as powdery or free-flowing solids, as well as liquids, sauces or dressings in corresponding packaging containers with a closure film according to the invention. Due to the weakness of the sealing film in the sealing film, a removal section can be opened particularly easily and with little effort, which represents a further advantage of the invention. Unintentional spillage or at least partial loss of the contents of the packaging during the opening of the closure film is thus reliably avoided.

In a further particularly advantageous embodiment of the invention, the layer group of the sealing film is formed by a single film layer. In this embodiment, a so-called monofilm is used as a single film layer as a sealing film.

In a further particularly expedient embodiment of the invention, at least two film layers of the layer group of a sealing film are inseparably connected to each other. An inseparable connection of the plurality of film layers is achieved, in particular, by laminating, ie by bonding the individual film layers by means of adhesive, heat and / or pressure. A multilayer composite film produced in this way offers the advantage, as a sealing film, that individual film layers made of different materials, each with different properties, are combined to form a layer group. Thus, for example, individual film layers that are particularly suitable for food can be combined with further film layers, which are for example gas-tight or particularly tear-resistant or form a water vapor barrier, to form a multilayer composite film with properties preferred for the respective packaging task.

Particularly expediently, a further weakening line defining the periphery of a ventilation section is provided in the case of a closure film according to the invention, through which ventilation section in the opened state the package contents can be ventilated. In this expedient embodiment of the invention, the removal is facilitated in particular by a liquid packaging content from the removal section and prevents inadvertent spillage when emptying the package by a venting section. Most of the ventilation section is smaller than a removal section.

Advantageously weakens in a closure film according to the invention, the at least one line of weakness at least partially the closure film, wherein the line of weakness using a laser beam or a mechanical tool on the closure film is unilaterally and / or generated on both sides. Depending on the packaging task, different embodiments of weakening lines are encompassed by the invention. The weakening lines can be, for example, punctured, dashed or arranged as continuous lines or line sections on the periphery of a removal section or a ventilation section.

Likewise, it is conceivable that the weakening lines relate only to a portion of the periphery of a removal section or a ventilation section. Thus, the sealing film of the removal section or ventilation section at least partially remains unattenuated with the surrounding closure film.

By means of a laser beam, a material removal of the sealing film can be performed with high precision, for example, by short, high-energy laser pulses in the region of the weakening line. Likewise, lines of weakness can be applied with mechanical tools in the sealing film. The material can be removed on one or both opposite sides of the sealing film.

A closure film according to the invention expediently has a reduced film layer thickness of 10% to 90%, in particular of 20% to 80%, preferably of 30% to 70%, of the total film layer thickness at the weakening line. In this embodiment variant, the film thickness at the weakening line is correspondingly reduced depending on the packaging task. Thus, a removal section and / or ventilation section is provided in each case, which ensures a sealed sealing film in the unopened state and is particularly easy to open.

If a multilayer composite film, that is to say a closure film with a layer group having at least two interconnected film layers, is used as the closure film, then entire film layers are preferably weakened by removal of material. In the case of a multilayer composite film which is produced, for example, from a first film layer made of a thermoplastic material, in particular polyethylene terephthalate (PET), and further film layers made of aluminum and polyethylene (PE for short), the PET film layer is preferably in the region of the weakening line completely severed. The remaining composite of the other film layers of aluminum and PE, however, remains complete, so obtained without weakening.

If the removal of material takes place in the region of the lines of weakness with the aid of a laser beam, the different degrees of absorption of the individual film layers can be used to remove material as selectively as possible only on individual film layers, while, for example, at least one film layer remains intact.

Likewise, it is possible in a multilayer composite film comprising at least three film layers to weaken the two outer film layers in each case by targeted removal of material, while at least one inner film layer without weakening line remains intact.

In a further development of the invention, in a closure film, at least one removal section and / or ventilation section are each mechanically depressable, wherein the line of weakness at the periphery of the at least one removal section and / or ventilation section is interrupted in each case by a connection foil section. In this embodiment of the invention, the weakening line is interrupted at the periphery of a removal section and / or ventilation section. Along this connecting foil portion, the portion of the sealing foil within the weakening line is connected to the sealing foil without weakening line surrounding the withdrawal portion and / or ventilation portion. In the case of mechanical action on the sealing film in the removal section and / or in the ventilation section, for example by the user pressing in the film with a finger or with a pointed tool, the closure film is only torn along the line of weakness and remains undamaged along the connecting film section. The case pressed or torn closure film tab remains advantageous connected to the connecting film portion with the remaining sealing film. Advantageously, the pressed-in closure film tab can thus not erroneously get into the package contents, be inadvertently lost or be swallowed, for example, in a consumption of the packaging contents.

Suitably, the sealing film is peelably attached to the edge of the packaging, wherein at least one removal section and / or ventilation section is openably connected in each case with a grip tab of the closure film. With a grip tab, which is provided on the closure film and which is connected to a removal section and / or venting section, the closure film sections to be opened can be opened particularly comfortably. Typically, such grip tabs protrude beyond the packaging edge of the packaging package to the outside. Thus, provided with grip bottles removal sections or ventilation sections are particularly easy to open by hand. A tool for opening is not required.

[0022] According to the invention, in the case of a closure film, the at least one removal section and / or ventilation section is in each case adjacent to the edge of the packaging or arranged across the packaging edge. Such a removal section and / or ventilation section has the advantage that, due to its position on the edge of the packaging, the removal, in particular the emptying of the contents of the packaging, can be accomplished simply and without undesired spilling. During the emptying of the packaging, the edge of the packaging serves as a tear-off edge for the packaging contents. Thus, a particularly clean, portion removal of the contents of the package is possible.

In a preferred embodiment of the invention, at least one removal section is shared openable in a closure film, wherein at least two parts removal sections are openably connected to a gripping tab and in the open state in each case one located between adjacent parts removal sections connecting film section remains connected to the packaging edge. Such partial removal sections form, for example, a pouring opening for a first, liquid portion of the packaging contents. Solids which form a further portion of the packaging contents are advantageously retained by the connecting foil sections provided between adjacent part-extracting sections and comparable to a sieve. Thus, a fractional removal of the contents of the package is possible, wherein a stored in a liquid, solid packaging content is retained during pouring, without unintentionally falling out of the package.

Expediently, in the case of a closure film, a web width of a connecting film section is from half to three times, preferably from the simple to double, the width of a part removal section. With these division ratios of the opening widths of the part removal sections to the web widths of the respectively intermediate connecting film sections, a sealing film can each be individually adapted to the nature of the packaging content.

Advantageously, in the case of a closure film according to the invention, a further removal section is provided around the removal section having at least one part removal section, which section can be opened separately from the removal sections after partial removal of the packaging contents. In this embodiment, after the partial removal of, for example, a liquid portion of the packaging contents by the part removal sections, a further portion of the contents of the package can be removed particularly comfortably by the separate, further removal section of the packaging. For example, Mozarella pieces in salt lakes would be suitable for filling a package sealed with such a closure film. By opening a plurality of partial removal sections, the salt coatings can first be poured out of the packaging. Subsequently, to remove the remaining Mozarella pieces, the further removal section surrounding the part removal section is opened. With such a package, the contents of the package can advantageously be removed fractionally and without contact.

In a particularly expedient embodiment of the invention, at least one removal section and / or ventilation section can be covered by a grip tab section in the case of a closure film. In order to avoid unintentional opening or indentation of these weakened zones in the closure film during the transport or storage of such packages, the handle tab portion is folded over the removal section and / or vent section and attached to the Outside of the sealing film removably attached. Thus, such a folded handle tab portion serves as protection against unintentional impressions of a removal section or ventilation section.

For the production of a closure film according to the invention, at least one material or material mixture is expediently selected from the group: polyethylene, polypropylene, polyester, polyamide, aluminum, paper, polyvinyl chloride.

In addition to the plastics mentioned polyethylene (PE), polypropylene (PP), polyester (PET), polyamide (PA), polyvinyl chloride (PVC), paper and metal foils, for example, aluminum (Alu) can serve to produce a sealing film. Furthermore, polypropylene or polyamide film layers which are stretched in the longitudinal or transverse direction or in both directions (biaxially) can be used. Such so-called oriented polyester (O-PET) films, oriented polypropylene (OPP) films or oriented polyamide (OPA) films can also be used in each case as a film layer of a sealing film and offer the advantage that the strength and the weight per Square meters of such films define. Likewise, stretching the film improves mechanical properties, increases transparency, improves cold resistance, and reduces gas permeability.

Particularly advantageous is in a packaging comprising a packaging container and a sealing film, which sealingly for sealing the packaging package at its edge of the packaging in particular by heat sealing, gluing or pressing befigt 4/16 Austrian Patent Office AT 13 463 Ul 2014-01-15 tigbar , Provided a closure film according to the invention. As packaging containers are used, for example, dimensionally stable, cup-shaped containers made of plastic, paper or metal, which are filled with the contents of the packaging, for example, with food, drinks or food.

In a particularly compact embodiment of a package according to the invention comprising a packaging container with a plurality of receiving chambers, at least two receiving chambers each have at least one removal section and / or ventilation section in the closure film. A packaging container with a plurality of receiving chambers serves for the common packaging of spatially separated packaging contents. The closure film is arranged so that it covers the packaging container at its entire packaging edge. At least at two receiving chambers removal sections or ventilation sections are provided in the closure film in order to remove the individual contents of the package separately from each other from the packaging can.

The invention also includes a packaging which has at least one removal section and / or ventilation section in the closure film in the region of each individual receiving chamber.

Further advantageous embodiments of the invention will be explained in more detail below with reference to the respective schematic figures. In the drawings: [0033] FIGS. 1 to 8A show in a plan view different variants of packages according to the invention sealed with peelable sealing films; [0034] FIGS. 8B and 8C show, in isometric views obliquely from above, the individual steps during the opening of the packaging illustrated in FIG. 8A; - Figures 9 to 12 each in a plan view different Ausfüh insurance variants of sealed with festsiegelnden or peelable sealing films packaging according to the invention; [0036] FIGS. 13A and 13B each show a sectional view from the side of the variant sheets of sealing films according to the invention; FIGS. 14A to 14C respectively in isometric oblique views

Variant of a package according to the invention when opening the closure film.

Fig. 1 shows a packaging 1, which has a packaging container 2 with a substantially circular packaging edge 3. A packaging content 4 is packaged in a receiving chamber 6 of the packaging package 2 under a closure film 10 sealed. The closure film 10 here comprises a layer group 100 of a plurality of film layers inseparably connected to one another and has a weakening line 11, which forms a periphery of a removal section 14. The removal section 14 is arranged in an overlapping manner over the packaging edge 3 of the packaging package 2 and is openably connected to a first grip tab 16 of the closure film 10. A second gripping tab 16 is here arranged, for example, on the side of the closure film 10 opposite the first gripping tab 16 and connected thereto without perforation or without weakening line. The second grip tab 16 is used to remove the entire closure film 10, which forms a Foliendeckel, after the at least partial emptying of the packaging package 2. The two handle tabs 16 each protrude in a known manner beyond the packaging edge 3. As a sealing film 10, for example, a peelable, peelable sealing film 10 is used, which is attached to the packaging edge 3 peelable. By lifting the first grip tab 16 of the removal section 14, the closure film 10 is removed from the packaging edge 3 within the removal section 14. By further tightening the grip tab 16, the closure film 10 further tears along the weakening line 11 of the removal section 14 until this film section is finally completely separated from the closure film 10 and the removal section 14 is available as an opening in the closure film 10 for removal of the packaging contents 4 , It is also conceivable within the scope of the invention to provide a package similar to the packaging 1 shown in FIG. 1, which has only one gripping tab 16 for opening the removal section 14. This version is not explicitly shown in the figures.

Fig. 2 shows a package 1 comparable to the figure shown in Fig. 1, wherein the packaging container 2 has two spatially separate receiving chambers 6 and 7 for receiving a first packaging content 4 and a separately stored packaging content 5. A removal section 14 is here arranged in an overlapping manner in the middle of the packaging container 2 located packaging edge 3, so that the two packaging contents 4 and 5 can be removed from the separate receiving chambers 6 and 7 in each case together.

FIG. 3 illustrates a further variant of a packaging 1 according to the invention with a removal section 14 and a ventilation section 15 which, like the removal section 14, is connected to a grip tab 16 of the closure film 10. The ventilation section 15 is arranged on the side diametrically opposite the removal section 14 of the closure film 10 and also has a line of weakness 11 forming the periphery of the ventilation section 15. The venting section 15 and the removal section 14 are here placed overlapping each other over the packaging edge 3. For emptying the packaging content 4, for example a liquid, the gripping tab 16 of the ventilation section 15 is first actuated by raising it in a haul, thereby removing the sealing film 10 from the packaging edge 3 within the ventilation section 15. The closure film 10 ruptures on further tightening on the grip tab 16 along the line of weakness 11, wherein the venting section 15 is opened. Subsequently, the removal section 14 is opened by lifting the grip tab 16 of the removal section 14 and by removing the closure film 10 from the packaging edge 3. By further tightening the grip tab 16, the closure film 10 continues to tear along the weakening line of the removal section 14 until it is finally completely separated from the closure film 10 and is separated from the packaging 1. By appropriately inclining the packaging container 2, the liquid contents of the package can now be emptied through the removal section 14. Due to the venting section 15 an undesirable negative pressure during emptying inside the container and thus accidental spillage of the packaging contents 4 is reliably avoided.

Fig. 4 shows an embodiment of a package 1 with four spatially separated receiving chambers 6, 7, 8 and 9. In the receiving chambers 6 and 9 are each portions of a first packaging content 4. In the receiving chambers 7 and 8 are each spatially Portions of a second package contents 5 are kept separate from each other. The receiving chambers 6, 7, 8 and 9 each form quadrants of the packaging package 2 in the form of quadrant segments. The closure film 10 has, in the region of each receiving chamber 6, 7, 8 and 9, a removal section 14, which is in each case openably connected to a gripping tab 16 of the closure film 10. Advantageously, the receiving chambers 6, 7, 8 and 9 thus each be opened separately from each other.

The illustrations Fig. 5 to Fig. 8C show each packaging 1, each with a split-opening removal portion 14, wherein each two part removal portions 17 are openably connected to a gripping tab 16 and in the open state in each case between the two adjacent part removal sections 17th befindlicher connecting foil portion 19 remains connected to the packaging edge 3. The opened part removal portions 17 act with the middle in between remaining web-shaped connecting film portions 19 as a sieve. For example, a first, liquid fraction of the packaging contents 4 can be removed through the opened part removal sections 17, without emptying a further fraction of the contents of the packaging 4 containing, for example, solids.

Fig. 5 shows a package 1 with a receiving chamber 6 for storage of a packaging content 4. The receiving chamber 6 has a removal portion 14 comprising two Austrian patent office AT13 463U1 2014-01-15

Part removal sections 17 on. In this case, a width 18 of the part removal section 17 corresponds essentially to a web width 20 of the connecting film section 19 lying therebetween.

According to the invention, the web width 20 of a connecting foil portion 19 can be from half to three times, preferably from the simple to the double, width 18 of a part removal section 17. Furthermore, more than two part removal sections 17 can be provided in the closure film 10, wherein in the opened state between each two adjacent part removal sections 17 a connecting film section 19 remains. These variants are not shown explicitly in the figures.

Fig. 6 shows a package 1 comparable to the embodiment shown in Fig. 5, in which case a ventilation section 15 is additionally provided in the closure film 10.

Fig. 7 shows a package 1 with two separate receiving chambers 6 and 7, which are each provided with a removal portion 14 comprising part removal sections 17.

FIG. 8A illustrates a packaging 1 with a peelable sealing film 10, wherein a first removal section 14 has two partial removal sections 17, which are arranged on the closure film 10 in an overlapping manner over the packaging edge 3. The two parts removal sections 17 are connected to one another with a grip tab 16 and can be opened together with this. Here, an additional further removal section 14 is provided which, after the partial removal of a first part of the packaging contents 4, can be opened separately from the parts removal sections 17. This further, larger removal section 14 also has a grip tab 16, which is connected to the closure film 10. In the opened state, when the further removal section 14 releases more than half of the total film surface of the packaging package 2, a larger piece of the still remaining packaging content 4 can thus be removed from the packaging 1 in a particularly comfortable manner.

Fig. 8B shows the closed package 1 shown in Fig. 8A in an oblique view in already partially opened state. The first removal section 14 is shown removed from the closure film 10. The two part removal sections 17 of the first removal section are thus opened and thus serve, for example, for emptying a liquid component of the packaging contents 4, for example a brine of a mozzarella packaging. Advantageously, in the middle of the removed first removal section 14, a connecting film section 19 of the closure film 10 remains fixedly connected to the packaging edge 3. This prevents inadvertently emptying larger, solid constituents of the packaging contents 4, such as pieces of mozzarella cheese, with the liquid.

FIG. 8C relates to a continuation of the partially opened package 1 shown in FIG. 8B. Here, the further removal section 14 of the closure film 10, which releases more than half of the total film surface, is already shown removed from the package 1. By way of example, as part of the contents of the package 4, the pieces of cheese can now be taken out of the package 1 in a particularly simple and convenient manner. Advantageously eliminates here due to the previously cast off brine otherwise usually required for the removal of cheese pieces hand contact with the brine. By weakening lines 11 a particularly simple and clean opening of the removal sections 14 is possible.

Fig. 9 shows a cup-shaped package 1, which is closed at its packaging edge 3 with a peelable sealing foil 10. A removal section 14 has a weakening line 11 in a portion of its periphery, leaving a connecting foil section 19 which has no line of weakness 11. The removal section 14 is arranged in the closure film 10 at a distance from the packaging edge 3. In the case of mechanical action, for example when the closure film 10 is pressed inside the removal section 14 near the weakening line 11 with a finger or with a tool, the closure film 10 yields to the pressure load and tears in the region of the weakening line 11. Advantageously, the resulting film tab of the removal section 14 remains at the 7/16 Austrian Patent Office AT 13 463 Ul 2014-01-15

Connecting film portion 19 is connected to the closure film 10 and thus can not erroneously get into the receiving chamber 6 and in the package contents 4. The closure film 10 here comprises a layer group 100 which consists of a single film layer. After opening the removal section 14, it is further possible to completely remove the remaining sealing film 10 from the packaging edge 3 in a following step and thus to arrive at the entire package contents 4. For easy removal of the entire closure film 10 from the edge of the packaging 3, a gripping tab 16 is provided laterally.

Fig. 10 relates to a package 1 according to the embodiment shown in Fig. 9, but here, in addition to a removal portion 14, a ventilation portion 15 is provided, which is also manually or with a tool in the closure film 10 to be pressed open.

Fig. 11 shows a package 1 with four receiving chambers 6, 7, 8 and 9 for receiving different packaging contents 4, 5. Each receiving chamber 6, 7, 8 and 9 each have a removal portion 14 of the sealing film 10, which in opened state along a portion of its periphery remains connected to a connecting foil portion 19 on the closure film 10.

Fig. 12 shows a package 1 with a receiving chamber 6, which is provided with a small-area removal portion 14. This removal section 14 can preferably be opened by pressing in with a pointed object or a tool. So that the opened removal section 14 does not inadvertently reach the interior of the packaging 1, the contour of the weakening line 11 is in turn interrupted by a connecting foil section 19 without weakening line.

FIG. 13A shows a variant of a closure film 10 according to the invention in a sectional view from the side. The closure film 10 shown here comprises a layer group 100 with a single film layer 101. This so-called monofilm has, in the region of the weakening line 11, a film layer thickness 13 which is reduced by 40% compared with the film layer thickness 12 of the adjacent closure film 10, for example. The material removal of the sealing film 10 at the weakening line 11 was produced here by means of a high-energy laser pulse on the outside of the closure film side.

It is also possible within the scope of the invention, the material removal of the sealing film only on the inside or on both sides opposite to provide on both sides of the film. These variants are not shown in the figures.

FIG. 13B shows a further embodiment of a closure film 10 according to the invention, wherein here the layer group 100 consists of a first film layer 101, a second film layer 102 and a third film layer 103. The film layers 101, 102 and 103 are inseparably connected by lamination. The film layer 101 is made of Oriented Polyester (OPET) and the Oriented Polyamide (OPA) film layer 102, for example. These two film layers 101 and 102 are completely severed in the region of the weakening line 11. The third film layer 103, which is made of polyethylene (PE) for example, remains intact in the region of the weakening line 11 of the closure film 10. Because of its food-safe properties, the film layer 103 of PE forms the inside of the closure film 10 oriented to the package contents 4.

FIGS. 14A to 14C each show a variant of a packaging 1 according to the invention. A cup-shaped packaging container 2 made of plastic is closed at its packaging edge 3 with a peelable sealing film 10. A grip tab 16, which is connected to the closure film 10, is folded up to protect the removal section 14 during transport or during storage of the package 1 and removably attached to the outside of the closure film 10 in the region of the removal section 14. In this position, shown in FIG. 14A, the pull tab 16 provides protection against inadvertent opening for the periphery of the underlying removal section 14 provided with a line of weakness 11. 8/16 Austrian Patent Office AT 13 463 Ul 2014-01-15 [0059] As in FIGS 14B, to open the removal section 14, first the grip tab 16 is detached from the attachment section 22 on the outer side of the closure film 10 and unfolded in the direction of the arrow 21.

Fig. 14C shows the package 1 in the already partially opened state. By further tightening or by lifting the now projecting gripping tab 16, the removal portion 14 along the line of weakness 11 can be easily opened. LIST OF POSITION SIGNS: 1 packaging 2 packaging containers 3 packaging edge 4.5 packaging contents 6, 7, 8, 9 receiving chamber 10 sealing film 100 layer group 101 first film layer 102 second film layer 103 third film layer 11 weakening line 12 film layer thickness 13 reduced film layer thickness 14 removal section 15 venting section 16 grip tab 17 T Eilentnahmeabschnitt 18 width of the part removal portion 19 connecting film portion 20 web width of the connecting film portion 21 arrow 22 attachment portion for the grip 9/16

Claims (15)

  1. Austrian Patent Office AT 13 463 Ul 2014-01-15 Claims 1. A closure film (10) for closing a packaging package (2) at its packaging edge (3), comprising at least one weakening line (11) defining the periphery of a removal section (14) Removal portion (14) in the opened state a packaging content (4, 5) can be removed, wherein the closure film (10) comprises a single layer group (100), characterized in that the at least one weakening line (11) at least partially weakens the sealing film (10) , Wherein the weakening line (11) with the aid of a laser beam on the closure film (10) can be generated on one side and / or on both sides.
  2. 2. Closing film (10) according to claim 1, characterized in that the layer group (100) by a single film layer (101) is formed.
  3. 3. Closing film (10) according to claim 1, characterized in that at least two film layers (101, 102, 103) of the layer group (100) are inseparably connected to one another, in particular by laminating.
  4. 4. Closing film (10) according to one of claims 1 to 3, characterized in that at least one of the periphery of a ventilation section (15) defining further weakening line (11) is provided through which venting section (15) in the open state of the package contents (4). is ventilated.
  5. 5. Closing film (10) according to claim 4, characterized in that the closure film (10) at the weakening line (11) has a reduced film thickness (13) of 10% to 90%, in particular from 20% to 80%, preferably 30% to 70%, the total film thickness (12).
  6. 6. Closing film (10) according to one of claims 1 to 5, characterized in that at least one removal section (14) and / or venting section (15) is in each case mechanically pressed / are, wherein the weakening line (11) on the periphery of the at least one Removal section (14) and / or ventilation section (15) is interrupted in each case by a connecting foil portion (19).
  7. 7. Closing film (10) according to any one of claims 1 to 6, characterized in that the closure film (10) on the packaging edge (3) is removably attached, wherein at least one removal section (14) and / or ventilation section (15) each with a gripping tab (16) of the closure film (10) is openably connected.
  8. 8. Closing film (10) according to claim 7, characterized in that the at least one removal section (14) and / or ventilation section (15) in each case adjacent to the packaging edge (3) or is arranged across this over.
  9. 9. Closing film (10) according to claim 7 or 8, characterized in that at least one removal section (14) is openable shared, at least two part removal sections (17) with a gripping tab (16) are openably connected and in the open state one between each adjacent Part removal sections (17) befindlicher connecting foil portion (19) with the packaging edge (3) remains connected.
  10. 10. Closure film (10) according to claim 9, characterized in that a web width (20) of a connecting film portion (19) from half to three times, preferably from the single to double, width (18) of a part removal portion (17).
  11. 11. Closure film (10) according to claim 9 or 10, characterized in that around the at least one part removal sections (17) having removal portion (14), a further removal portion (14) is provided, which after a partial removal of the packaging contents (4, 5) separated from the part removal sections (17) can be opened. 10/16 Austrian Patent Office AT13 463U1 2014-01-15
  12. 12. Closure film (10) according to one of claims 7 to 11, characterized in that at least one removal section (14) and / or ventilation section (15) of a handle tab portion (16) is coverable.
  13. 13. Closure film (10) according to any one of claims 1 to 12, characterized by at least one material or material mixture for its production, selected from the group: polyethylene, polypropylene, polyester, polyamide, aluminum, paper, PVC.
  14. 14. Packaging (1) comprising a packaging container (2) and a closure film (10), which for sealing the packaging package (2) at its packaging edge (3) in particular by heat sealing, gluing or pressing sealingly fastened, characterized by a sealing film (10 ) according to one of claims 1 to 13.
  15. 15. Packaging (1) according to claim 14, further comprising a packaging container (2) with a plurality of receiving chambers (6, 7, 8, 9), characterized by at least one removal section (14) and / or ventilation section (15) in the closure film (10). of at least two receiving chambers (6, 7, 8, 9). 5 sheets of drawings 11/16
ATGM8062/2013U 2011-11-30 2011-11-30 Closing foil with integrated opening AT13463U1 (en)

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ATGM8062/2013U AT13463U1 (en) 2011-11-30 2011-11-30 Closing foil with integrated opening
AT17692011A AT512261A1 (en) 2011-11-30 2011-11-30 Closure foil with integrated opening

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ATGM8062/2013U AT13463U1 (en) 2011-11-30 2011-11-30 Closing foil with integrated opening

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ATGM8062/2013U AT13463U1 (en) 2011-11-30 2011-11-30 Closing foil with integrated opening

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CA2846164A1 (en) 2013-03-15 2014-09-15 Selig Sealing Products, Inc. Inner seal with a sub tab layer
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US9096346B2 (en) * 2013-08-07 2015-08-04 Sonoco Development, Inc. Flexible package structure with a press-and-pull opening feature
EP3102499B1 (en) 2014-02-05 2019-11-20 Selig Sealing Products, Inc. Dual aluminum tamper indicating tabbed sealing member
EP3623312A1 (en) 2015-03-03 2020-03-18 Selig Sealing Products, Inc. Tabbed seal member, laminate sheet and method for production
US9656780B1 (en) * 2016-03-14 2017-05-23 Colgate-Palmolive Company Container seal with dual tabs
WO2019079588A1 (en) * 2017-10-18 2019-04-25 Sonoco Development Inc. Dual function portion control container and method of making the same

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EP0386416A1 (en) * 1989-01-19 1990-09-12 Schmalbach-Lubeca AG Easily openable package
EP1046595A1 (en) * 1999-04-22 2000-10-25 Teich Aktiengesellschaft Partially embossed lid for food containers
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EP0386416A1 (en) * 1989-01-19 1990-09-12 Schmalbach-Lubeca AG Easily openable package
EP1046595A1 (en) * 1999-04-22 2000-10-25 Teich Aktiengesellschaft Partially embossed lid for food containers
WO2001074685A1 (en) * 2000-04-04 2001-10-11 Teich Aktiengesellschaft Covering element for sealing containers used for accommodating liquid foodstuffs
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US20050150891A1 (en) * 2003-12-16 2005-07-14 Amcor Flexibles Europe Packaging having a perforable lid

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EP2599735B1 (en) 2016-04-13
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