WO2010125118A1

WO2010125118A1 - Reclosable packaging having a film and a lid comprising a plug section

Info

Publication number: WO2010125118A1
Application number: PCT/EP2010/055746
Authority: WO
Inventors: Michael Zech; Manfred Bareth; Gerhard Hartmann; Andrees Michalsky
Original assignee: Huhtamaki Ronsberg Zn Der Huhtamaki Deutschland Gmbh & Co. Kg
Priority date: 2009-04-28
Filing date: 2010-04-28
Publication date: 2010-11-04
Also published as: EP2424793A1; US20120043329A1; DE102009019279A1

Abstract

The invention relates to a reclosable packaging comprising a packaging body (12; 112), an edge component (14; 114), which surrounds a packaging opening (16; 116) and which is irremovably connected to the packaging body (12; 112), and a lid (20; 120), which is held on the edge component (14; 114) and closes the packaging opening (16; 116), wherein the packaging body (12; 112) is substantially formed by a flexible packaging body film (13; 113) at least in one section (12a; 112a) accommodating the edge component (14; 114), wherein the lid (20; 120) is connected to the edge component (14; 114) by means of a first detachable connection in the form of an adhesive bond or seal in the initially closed packaging state, and in a reclosed packaging state after a first opening is connected to the edge component (14; 114) by means of a second detachable connection that is separate from the first connection and can be reestablished. According to the invention, the lid (20; 120) comprises a plug section (20a; 120a) that penetrates the packaging opening (16; 116) in the reclosed packaging state and a flexible cover film (22; 122) irremovably connected to the plug section (20a; 120a), a joining section (22d; 122d) of said flexible cover film being connected to the edge component (14; 114), thus forming the first detachable connection in the initially closed packaging state, and the plug section (20a; 120a) forms the second detachable connection with the edge component (14; 114) in the reclosed state.

Description

Reclosable packaging with a lid having a foil and plug portion

description

The present invention relates to a resealable packaging, comprising a packaging body, with a peripheral edge enclosing a packaging opening, which is inextricably linked to the packaging body, and with a cover closing the packaging opening, the packaging body being at least in a section receiving the edge component in FIG Substantially formed from a flexible packaging film body, wherein the lid is connected in the first-closed packaging state by a first releasable connection in the form of a bond or seal with the edge component, and in a resealed

Packaging state after a first opening is connected by a separately formed from the first connection second releasable and recoverable connection with the edge component.

Such a package is known for example for coffee pads in the market. This packaging is almost completely formed of flexible plastic film, more specifically a plastic film laminate.

The lid of this packaging is made as a dimensionally stable component made of thermoplastic material.

To stiffen that portion of the package which is to receive the lid, an annular dimensionally stable edge component also made of thermoplastic material is sealed to the film laminate of the packaging body with such selected pressure and temperature that the dimensionally stable edge component in the proper use of the package inseparable from the Verpackungsungskörper- Foil is connected. The lid in turn is inserted with a plug portion in the packaging opening defined by the edge member and held there by clamping due to material elasticity and friction.

In the case of a first-sealed packaging, that is to say in the case of a packaging which has been filled and closed but not yet opened by a consumer, the lid is additionally sealed to the edge component by ultrasonic welding in order to achieve a high degree of closure quality and closure security.

A disadvantage of the known resealable packaging is its difficult processability during its production.

Thus, on the one hand, the strength of the seal between the lid and edge component is difficult to reproduce, which can sometimes lead to Erstverschlossenen packaging, in which the strength of the seal between the edge member and lid is greater than the material strength of the lid itself. As a result, it may be undesirable Be way that when tearing the packaging of the lid is destroyed, while lid sections still adhere to the edge component.

In addition, there is also in the insoluble sealing of the edge member to the packaging body film to problems in which the packaging body film can be affected by the sealing tool just at the outwardly facing presentation surface of the packaging body.

For example, there may be a local sticking of the Verpackungskörper- foil on the sealing tool, whereby when lifting the

Sealing tool are pulled from the packaging body film after successful sealing of these threads. As a result, material deposits can form on the sealing tool, which in subsequent Siegelvorgängen be transferred to subsequent packaging undesirable. This thread tension can be counteracted by changing sealing parameters, which, however, can then lead to leaks between the packaging body and the separately formed dimensionally stable edge component during sealing.

It is therefore an object of the present invention to provide a resealable package of the type mentioned, in which the described problems are reduced or even completely avoided.

This object is achieved by a generic resealable packaging, wherein the lid has a re-sealed packaging state the packaging opening passing through the plug portion and an inextricably linked to the plug portion flexible lid film, of which a joint portion in the first-sealed packaging state with the edge component to form the first detachable connection is connected and the plug portion in the reclosed packaging state with the edge member forms the second releasable connection.

With the plug portion of the lid, the reclosability of the packaging is ensured. The plug portion is simply pressed into the packaging opening.

The cover sheet permanently bonded to the plug portion permits the first releasable connection of the cover with the edge component to be produced by adhering or / and sealing the joining portion of the cover sheet to the edge component. Due to the great process reliability and the permanent connection of lid film and plug portion is formed by gluing and / or permanent sealing.

The plug portion, which in the hitherto used in the prior art solution, when the adhesive forces of the first detachable Compound were higher than the material strength of the lid, often destroyed with the entire lid, namely was torn, remains in the proposed inventive solution when tearing the preferably peelable (peelable) by means of the lid film adhered to the edge component or / and sealed lid healing.

Even if the lid film should be destroyed during the first opening of the package, the plug portion remains as a preferably one-piece component, in particular of injection-molded or thermoformed thermoplastic obtained, whereby the package can be safely resealed.

In general, the lid is held in the first-closed packaging state in addition to the first connection and by the second connection to the rest of the package. However, this is not absolutely necessary.

As a "film" in the context of this application, such films are up to a film or laminate thickness of 250 microns.

Strictly different from films within the meaning of the present application are so-called rigid or dimensionally stable plastics, which are indeed elastically deformable under the action of force, but overall dimensionally stable.

In principle, it can be thought that the edge component is formed integrally with the packaging body. Preferably, however, the edge component is a separately formed component.

A defined peelable first connection between the cover film and the edge component can be obtained by forming the edge component from a flexible edge component film which is non-detachably connected to the packaging film in the area of the packaging opening and which with the cover film peelable bonding and / or sealing as the first releasable connection is connected. By virtue of the fact that the edge component, as well as at least the portion of the packaging body carrying the edge component, is made of a film, connection of the edge component to the packaging body film as well as the first releasable connection, in particular by sealing, can be achieved in the case of intended consumption of the packaging , can be achieved almost without problems. Just connecting two films together by sealing is known in the packaging technology and is mastered.

10

In addition, the use of an edge component made of edge component film is considerably less expensive than the use of the dimensionally stable thermoplastic edge component known from the prior art.

Surprisingly, it has been found that even with the use of a film-like edge component instead of the previously used dimensionally stable edge component together with the packaging film, a sufficiently dimensionally stable packaging body portion for defining the packaging opening and for receiving the lid are formed

2o can. This was not to be expected by the use of only formlabile starting components.

Moreover, in the present application, when reference is made to strengths and strengths of compounds, such as a solvable bond or a permanent bond, it is always the strength,

Resilience or (un-) solubility under intended use of the packaging.

As an adhesive for making a releasable connection of the cover sheet with the edge member, a cold, i. at ambient temperature, adhesive or alternatively a heat-sealing lacquer may be used.

However, the cover film is preferably sealed to the edge component, ie Surface regions of the edge component and the cover film, which are arranged adjacent to each other in the first-sealed packaging state, are melted and then sealed together with pressure. With a suitable choice of material and choice of sealing parameters such as temperature, pressure and time, the lid, similar to that of

Knapsible packaging for yogurt, Quark and the like knows to be peeled off the edge component. Such a compound is also referred to in the art as a "peelable" compound.

Then, if, in order to ensure a particularly high degree of closure, the lid in the first-closed packaging state is connected to the edge component by two detachable connections, namely with the first detachable connection between cover film and edge component and with the second detachable and recoverable connection between edge component and plug portion, during in the resealed

Packaging state, the first releasable connection is omitted, a higher opening force is required to open the first-sealed packaging than to open the only resealed packaging.

When the edge component, in particular as a film component, has a first edge component portion which is directly inseparably connected to the packaging body film and has a second edge component portion which is only indirectly connected to the packaging body film via the first edge component portion, the edge component can on the one hand reliable inextricably connected to the Verpackungskörper- foil and also reliably provide a section with which the lid is detachably connectable.

Preferably, the second edge component portion, not directly connected to the packaging body film, projects from the packaging body film. As a result, especially when the edge component is formed from the edge component film, on the one hand in a very simple and straightforward way in the area immediately around the Verpackungsöffπung around, in which the packaging body is formed with the edge component substantially only of sheet material, the rigidity and stability of the packaging are significantly increased.

On the other hand, with the second edge component section protruding from the packaging material film, even in otherwise very slim packagings, a sufficient joining surface for connection to the cover, more precisely to the cover film, can be provided.

Basically, it can be thought to connect the plug portion with a suitable choice of material as an injection molded component or thermoformed component made of thermoplastic material directly with the lid film, particularly preferably in turn by thermal sealing. Surprisingly, however, it has been found that the plug section can also be formed, at least in sections, preferably completely, from a plug section foil.

In particular, when the edge member having a first edge component portion is connected to the packaging body film, while a second edge component portion protrudes from the packaging body film, the lid with lid film and plug portion relative to an envelope of the overall packaging can be recessed, if a with the first edge component portion connected packaging body portion in erstverschlossener packaging over the edge component outwardly projecting lid portion in

Preceding Vorragerichtung. As a result, there are fewer possibilities of unwanted and uncontrolled force from the outside on the lid, in particular on the plug portion, such as in the case of transport of the package.

For the purpose of both securing the lid and providing sufficient dimensional stability in the package opening near region of the package, the first and second edge component portions close at least in sections, preferably along its entire extent, an angle, preferably a right angle. Likewise, the second edge component section advantageously encloses at least in sections, preferably along the entire extension of the edge component, an angle, preferably a right angle, with the packaging body.

The edge component is advantageously designed as a closed ring whose radially inner edge forms a boundary of the packaging opening. Then in the preceding paragraph with "extension" meant the extent extension.

This ring is preferably annular, but this need not be the case. The edge member may also have an oval (elliptical) shape or a polygonal shape or a combination of round and polygonal shapes.

In this case, a radially outer portion of the annular edge component may preferably be the first edge component portion, while a radially inner portion of the edge component is the second edge component portion.

For the best possible connection of the edge component with the packaging body film, the first edge component section is likewise circumferential in the case of a peripheral edge component.

For the best possible shielding of the packaging volume enclosed by the packaging against influences of the outside environment, which could promote spoilage of the packaged goods, it can be provided that at least one film consists of the packaging body film, the cover film, the edge component film and the plug portion Film is a laminate of at least two film layers, of which a layer forms a barrier layer. Barrier layers are known per se in the prior art. For this purpose, about EVOH, SiO _x , AIO _x and the like come into question.

In order to protect the packaged goods not only against gases, such as oxygen and

Hydrogen to shield, but also exclude exposure to UV rays, the barrier layer is preferably a metal layer, more preferably a metallized layer. Here, aluminum has proven particularly useful as a material for an absolute barrier.

The metal layer may be bonded by adhesive interlayers to adjacent layers of the laminate.

Preferably, the packaging body film and the edge component film are provided with a barrier layer, particularly preferably also the cover film. To ensure the best possible barrier effect, the stopper section foil can also have a barrier layer.

For the simplest possible connection of the films with each other may alternatively or additionally be provided that at least one film of the

Packing body film, the lid film, the edge component film and the plug portion film is a laminate of at least two film layers, of which at least one outer layer, preferably both outer layers, are formed by a sealable thermoplastic.

Particularly preferably, all four films involved in the packaging described here are each provided with two outer layers of sealable thermoplastic material.

Since both the edge component film and the cover film are each intended to form a non-detachable and a detachable connection, it is provided in a preferred embodiment of the invention that at least the edge component film or the cover film, preferably at Both films, particularly preferably the plug portion film, an outer layer of a sealable thermoplastic material is suitable for the formation of insoluble compounds. Such a plastic is for example polypropylene (PP). And it is further provided that the respective other outer layer is formed by a sealable thermoplastic material to form a releasable connection, in particular a peelable compound. Such a plastic is, for example, oriented polypropylene (OPP) or PP-peel.

Another important issue for packaging is its printability. In order to ensure that the resealable packaging can be printed with consumer information and the like, it can be provided that at least one film of the packaging body film, the cover film, the edge component film and the plug section film is a laminate of at least two film layers is, of which at least one layer is formed for receiving inks. For this purpose, in particular a layer of a polyester, in particular of polyethylene terephthalate (PET) may be provided. The PET layer can also be provided to increase the laminate stiffness.

Alternatively or additionally, the outer layer, in particular the OPP outer layer, to protect the ink application in reverse printing or without special protection simply be printed only in the printing process.

The compatibility of packaging body film and / or edge component film and / or lid film and / or plug portion film and their material properties may then be set substantially similar or even the same if said films comprise substantially identical layers.

Particularly preferably, they have the same layer structure, ie layers of the same material are arranged in the same order in the laminate. For cost reasons, the packaging body film, the cover film, the edge component film and the plug portion film are substantially identical. Then, a film can be used both for forming edge member and packaging opening packaging body.

To achieve the best possible barrier property of the packaging can be provided that the lid film spans the plug portion. The fact that the cover film spans the plug portion, ie the outside of the packaging when viewed surrounds the lid film in Erstverschlossenen state with a suitable choice of film for a suitable barrier, in particular absolute barrier to gases and / or light, so that the Plug section can be made of a cost-effective material i5 without barrier properties.

By overstretching the plug portion by the lid film also the entire lid surface can be printed if the lid film with the aforementioned, the printability guaranteed

20 properties is provided. For secure attachment of the cover film on the edge component can be provided that the cover film in its extension plane in at least one spatial direction has a larger dimension than the plug portion. This means that the lid film in at least one of its planar extension directions the

Protected over 25 stopper portion, so that the lid film, in particular when the edge component comprises the above-mentioned edge component film can be easily and reliably connected to the edge component releasably connected.

Preferably, the cover film has larger dimensions in its plane of extent in at least two mutually orthogonal spatial directions than the plug section, which allows a more secure connection of the cover film to the edge component. According to a particularly preferred embodiment of the present invention it is provided that the plug portion extends along a longitudinal axis and the lid film surrounds the plug portion radially outwardly relative to the longitudinal axis. The plug portion often has a cylindrical or similar shape, ie it has a lateral surface along which it bears against an edge of the packaging opening and thereby closes the packaging opening. This lateral surface extends in the axial direction in order to give the plug portion the axial extent necessary for insertion into the packaging opening.

Then, when the lid film surrounds the plug portion radially outward, the plug portion may be completely surrounded by foil in Erstverschlossener packaging, so that at least in

Packaging opening portion fully printable and / or fully equipped with a barrier packaging can be achieved.

The plug section is then packed by the films surrounding it on the outside: packaging body film, cover film and possibly edge component film, as it were. Therefore, barrier and printing properties of the plug portion are not necessarily important.

For Wiederverschließbarkeit the package can be provided that the plug portion, when the packaging opening is closed by the lid, rests against a radially inner edge of the edge component.

As already mentioned, the lid can be particularly easily connected to the rest of the packaging when the joining portion of the lid film surrounds the plug portion of the lid radially outward. Then, in particular, the joining section can abut against a flat section of the edge component, while the plug section adjoins the radially inner section Edge of the edge component abuts and thus passes through the defined by the radially inner edge of the edge component packaging opening.

In particular, in the reclosed packaging state, the lid can close the packaging opening securely and sufficiently firmly when the plug portion is held by a material-elastic clamping and the friction caused thereby by the edge component.

Such a material-elastic clamping can be obtained, for example, in that the edge component forms an edge of the packaging opening, wherein dimensions of the plug portion are greater than the associated dimensions of the packaging opening.

Assigned "dimensions" thereby form the dimensions of those sections of edge component (for defining the packaging opening) and plug portion, which are in correctly re-sealed packaging in investment interaction with each other.

In a plug portion with a circular cross section and a packing opening with a circular cross section, the associated dimensions are the respective diameters of the plug portion and packing opening.

In the case of elliptical cross-sections of the plug portion and packing opening, for example, the two small semi-axes and the two major semi-axes of the respective elliptical cross sections are associated with each other.

For forming the aforementioned lateral surface, the plug portion may advantageously have a skirt portion which extends away from the lid film at a predetermined angle. The jacket section preferably extends away from the cover film at a right angle or is slightly conical at least in sections, that is, tapering away from the lid film to facilitate insertion of the jacket portion into the packaging opening for engaging the envelope surface at the radially inner edge of the packaging opening.

For the most secure and tight installation of the plug portion on the lateral surface of the shell portion of this may be circumferentially formed along a closed path to a plane of extension of the lid film orthogonal reference axis.

Sometimes it may be sufficient that the plug portion consists only of the shell portion, i. in that the plug portion is formed from a ring or hollow cylinder protruding from the cover film at an angle and the like. The outer shape of the shell portion, so the shape of the lateral surface is to achieve a dense as possible

Packaging in the reclosed packaging state of the contour of the radially inner edge of the packaging opening designed accordingly. This means that the jacket surface on the jacket section can have a circular, elliptical or polygonal cross section or hybrid forms thereof.

For receiving materials which are initially to be provided separately from the contents of the resealable packaging according to the invention, it can be provided that a wall portion of the plug portion located radially inwardly of the shell portion relative to the aforementioned reference axis encloses a storage space together with the jacket portion and the lid film ,

This storage space can be used according to a preferred development of the present invention, so-called scavenger

Absorb materials which are adapted to absorb gases such as oxygen and / or ethylene, and / or liquids, such as water, to bind the actual content of the Packing according to the invention as long as possible against unwanted external influences by the to be absorbed or to be bound to protect.

For a particularly permanent and secure connection of the lid film with the plug portion may also be thought that a relative to the reference axis located radially within the jacket portion wall portion of the plug portion with the lid film, preferably non-detachably connected. Preferably, the wall section for this purpose runs at least in sections parallel to the cover film.

In addition, it may be desirable to make the contents of the previously described memory space accessible to users. For this purpose, it may be provided that the wall section is formed by a covering film which is preferably detachably connected to the end region of the jacket section located far away from the cover film and preferably connected by sealing.

For the most secure reclosability of the inventive 2o packaging can be thought that the shell portion at least along a peripheral portion, preferably completely circumferentially, has a relative to the reference axis radially outwardly projecting Verrastungsaustülpung.

In order that the plug portion can nevertheless be inserted into the baggage opening without major difficulties, the resealable package described here can be further formed such that the latching casing has a lead-in bevel inclined with respect to the opening surface of the packing opening

3o of the plug portion into the packaging opening to facilitate the re-sealed packaging condition.

Either the contents of the memory space before opening the To make packaging accessible or to use only the plug portion, in particular its jacket portion, as a stacking aid stacking of several similar reclosable packaging according to the invention, the packaging can be further formed according to a preferred embodiment in that the shell portion in the first-closed packaging state in the direction of Packaging interior protrudes away from the lid film, preferably inextricably connected to a first-closed state with a side facing away from the packaging interior side of the cover sheet.

Preferably, for cost reasons, the entire packaging body is formed from film laminate. In particular, cylindrical packaging bodies have proved to be dimensionally stable packaging bodies which can be built up from form-stable films with simple means.

It should be added that the packaging according to the invention can be designed according to an advantageous development for facilitated first opening so that the lid film has a pull tab as a tear-open, which preferably protrudes beyond an outer edge of the package to facilitate their gripping by a user.

In addition, to facilitate the stackability of the packaging, it may be provided that the lid film in the first-closed packaging state is substantially planar. For this purpose, in particular, the plug portion can be sunk into the opening of the packaging or / and formed from a sufficiently thin film laminate that it does not or hardly reflects on the lid film, even if it is already arranged in the first-sealed packaging state.

The present invention will be described below with reference to the accompanying figures. It shows Figure 1 is a cross-sectional view of a closure portion of a first

Embodiment of a resealable packaging according to the invention.

FIG. 2 shows a cross-sectional view of a closure region of a second embodiment of a reclosable packaging according to the invention. Figure 3 is a cross-section through the film laminate used in the packages of Figures 1 and 2.

In FIG. 1, an embodiment of a resealable packaging according to the invention is designated generally by 10. The packaging 10, of which only the closure section is shown, is rotationally symmetrical with respect to the axis of rotation Z. The cross-sectional plane of the illustration of FIG. 1 contains the axis of rotation Z.

The packaging 10 comprises a cylindrical packaging body 12 made of a packaging film 13, on whose one axial longitudinal end 12a on the inner side 12b, a peripheral component 14 is permanently sealed.

The edge component 14 formed from an edge component film 15, which is produced from the same film material as the packaging body 12, is in a first edge component portion 14a with its outside 14b against the inside 12b of the packaging body 12 over substantially the entire common axial and radial extension length permanently sealed. Alternatively, this compound could be formed by gluing instead of thermal sealing.

A second edge component section 14c adjoining the first edge component section in the radial direction projects orthogonally from the cylindrical packaging body 12 radially inwards, ie towards the axis of rotation Z.

The edge member 14 is formed from an originally substantially planar annular Foiienstück which extends in the radial direction over the common length of the first edge component section 14b and the second edge component section 14c. The first edge component section 14a has therefore been forcibly converted into the position shown in FIG. 1 when the edge component is inserted into the cylindrical inner surface 12b of the packaging body 12.

A radially inner edge 14d of the edge component 14 defines in the undeformed state a packaging opening 16, through which the interior 18 of the packaging 10 is accessible from the outside.

The package 10 is shown in Figure 1 in its first locked state, i. she is in a state as she leaves the filling station of a packer to the consumer.

In this first locked state, the packaging opening 16 (the position of the radially inner edge 14d of the edge component 14 with undeformed second edge component section 14c is indicated by dashed lines in FIG. 1) is closed by a cover 20. A dimensionally stable plug portion 20a of the lid 20 passes through the

Packing opening 16 and is under material elastic deformation of the second edge component portion 14c on the edge 14d of the edge component portion 14 at.

Already by this material-elastic deformation and the friction caused thereby, the lid 20 is securely held on the edge member 14. The clamping of the cover 20 on the second edge component section 14c achieved by the material-elastic deformation ensures the reclosability of the package 10 after the first opening.

The plug portion 20a further includes a radially outwardly projecting circumferential connecting portion 20b. This connecting portion 20b is substantially parallel to Extension plane of the second edge component section 14c.

On the side facing the edge component side 20c of the connecting portion 20b, a lid film 22 is non-releasably sealed. The connection of the cover film 22 to the connecting portion 20b of the plug portion 20a substantially corresponds in strength to the connection of the first edge component portion 14a to the longitudinal end 12a of the packaging body 12.

The lid film 22 is made of the same sheet material as the packaging body 12 and the edge member 14 of the illustrated embodiment. The lid film 22, which surrounds the plug portion 20a of the lid 20 closed, is located over almost the entire circumference of the lid 20 below the connecting portion 20b. Only at the point shown in Figure 1, the lid film 22 has an opening tab 22a, which can be grasped with fingers and used to release the connecting portion 20b of the second edge component section 14c.

The lid film 22 is detachable with its side facing away from the connecting portion 20b side 22b to the outwardly facing side 14e of the edge member 14, peelable sealed peelable. The region of the cover film 22 resting on the edge component film 15 and peelably sealed defines its joining section 22d.

With its opposite outer side 22c, on the other hand, it is, as already mentioned above, inextricably connected to the surface 20c of the connecting portion 20b by thermal or ultrasound-initiated sealing.

For the first opening of the hermetically sealed by the detachable sealing of the edge member 14 with the lid film 22 and by the permanent sealing of the lid film 22 with the lid 20 10, the lid-film tab 22a firmly gripped between two fingers and in axial direction of the packaging body 12 tightened away. As a result, the cover film 22 is peeled off from the edge component 14 and the plug portion 20a is pulled out of the packaging opening 16.

The plug portion 20a can be pressed with the desired reclosure of the package 10 under deformation of the edge 14d near the region of the edge member 14 in the packaging opening, and close this.

The plug portion 20a is then held by the material elastic deformation of the edge member 14 and thereby established between the edge member 14 and the plug portion 20a friction on the package.

Due to the non-detachable connection of the first edge component section 14a with the axial longitudinal end region 12a of the packaging body 12, the axial longitudinal end of the packaging 10 containing the longitudinal end region 12a is considerably stiffened, so that the packaging opening 16 near the package 10 during an opening operation and also in the open state Essentially retains shape.

To protect the lid 20 against unwanted force and thus unwanted opening, such as during a transport process of the package 10, both the longitudinal end portion 12a of the packaging body and the first edge component portion 14a in the closed state of the package 10 project beyond the cover 20 in the axial direction to the outside.

The plug portion 20a has a substantially parallel to the axis of rotation Z extending shell portion 2Of. This

Jacket portion 2Of immediately adjoins the connecting portion 20b of the plug portion 20a. Dashed line is on the radially outer portion of the shell portion 2OF a circumferential about the rotation axis Z radial protuberance 34 of the shell portion 2Of shown, which is adapted to engage behind the radially inner edge 14d of the edge member 14 in the manner of a latch.

5 To insert the plug portion 20a into the interior 18 of the

Packaging to facilitate through the packaging opening 16, an insertion bevel 34a is formed on the radial protuberance 34, which also rotates about the axis of rotation Z. This insertion bevel 34a is inserted radially inward into the area of the material section 2Of

10 away.

The plug portion 20a, as otherwise shown in a solid line, pot-shaped with a substantially parallel to the plane of the packaging opening 16 wall portion 20g may be formed, which adjoins the end of the lid film 22 far end of the shell portion 2Of to this.

Alternatively, the jacket portion 2Of may also be formed like a bead in accordance with the dashed curve with the designation 2Of. In this case, the jacket portion 2Of has a cross-sectional view U-shaped in a cross-sectional view including the rotation axis Z, the radially inner wall portion 20g ^{1 being located} approximately at the height of the connection portion 20b.

The wall section 20g or 20g 'fills the entire area of the plug section 20a that lies radially inside the jacket section 2Of or 2Of so that it is able to close the packaging opening 16 tightly.

However, the packaging shown in Figure 1 has a drawback in that the portion of the package 10 closed exclusively by the plug portion 20a does not ensure sufficient barrier properties since the plug portion 20a is merely an injection molded thermoplastic component. Depending on the packaged goods, however, increased barrier properties or packaging provided with absolute barrier properties may be desired.

The same applies if the packaging is to be substantially completely, in any case also in the lid area, printed or at least printable.

To overcome these disadvantages, the particularly preferred second embodiment of a package according to the invention shown in FIG. 2 is proposed.

The embodiment shown in Figure 2, in which the same or functionally identical components as in Figure 1 with the same reference numerals, but increased by the number 100 are provided will be described below only in so far as it is from the first embodiment shown in Figure 1 whose description is expressly referred to.

In the second embodiment shown in Figure 2, the plug portion 120a is inserted substantially identical to the plug portion 20a of the first embodiment in the packaging opening 116 and is in the first and in the resealed packaging state of the deformed edge member 114, more precisely by an opposite of their material elasticity widened edge component film 115 kept there.

However, in Figure 2, the lid sheet 122 spans the plug portion 120a of the lid 120.

For this purpose, the cover film 122 is, with its side 122 b, with which it is peelably sealed to the side 114 e of the edge component 114 formed by the edge component film 115, inseparable from the side 12 Oe of FIG Seal portion 120b of the lid 120 sealed.

The different strengths of the connections of the cover film 122 with the edge component 114 on the one hand and with the plug portion 120a on the other hand can be adjusted by different temperature and / or sealing pressure and / or sealing duration, wherein the connection strength with increasing sealing temperature or / and increasing sealing pressure or / and increasing seal duration increases.

Apart from the tab 122a, the lid film 122 is like the one shown in FIG

Connecting portion 120 b, to which it is sealed, substantially circular, but has a larger diameter than the plug portion 120 a and the connecting portion 120 b, so that the lid film 122 with its joint portion 122 d completely surrounds the plug portion 120 a radially outward. As a result, the plug portion 120a of the film assembly of packaging body film 113, edge component film 115 and cover film 122 is completely enclosed.

The package 110 is thus very well protected against unwanted opening by accidentally pulling out the stopper portion 120a.

Moreover, in the preferred case of a package 110 formed solely of the designated films, a complete, i. accessible on all sides printable packaging.

Likewise, a complete, i. All sides, provided with barrier properties packaging achievable.

The packaging material packaged by the packaging 110 is thus best protected against influences from the environment.

As shown in Figure 2 with double-dashed line, the A shell portion 12Of, in that the plug portion 120a is completely covered by the lid sheet 122, may be formed as a merely annular hollow cylindrical shell portion 120f which is L-shaped in cross-section containing the rotation axis Z due to the presence of the connection portion 120b

Has cross-sectional shape. Then, when the connecting portion 120b does not protrude radially outwardly or inwardly from the skirt portion 12Of, the skirt portion 12Of in the designated cross-sectional view may also have only a rectangular or parallelogram-shaped cross section.

For particularly secure connection of the cover film 122 with the plug portion 120a can in the previously described variant of the shell portion 12Of having a substantially U-shaped cross-section of the radially inwardly adjoining wall portion 120g 'partially or completely detachable or insoluble with the cover film 122nd be connected, more preferably by sealing.

Characterized in that the lid film 122 spans the plug portion 120a, then, when the plug portion as shown in Figures 1 and 2 shown non-solid, by the plug portion 120a together with the lid film 122, a storage space 130 enclosed, in which materials can be included. These may in particular be so-called scavenger materials which serve to absorb or bind undesired gases and / or liquids inside the package 110.

Alternatively or additionally, it may also be intended to make the storage space 130 accessible to users of the packaging 110. For this purpose, in particular when the jacket section 12Of of the stopper section 120a is designed merely as a ring protruding from the cover film 122, the wall section 120g "adjoining the jacket section 12Of is essentially parallel to the cover film 122 Stopper section 122a may be formed at its end remote from the cover film 122 end plug portion film 132. The stopper section foil 132 may in particular be detachably sealed to the jacket section 12Of or generally to the stopper section 120a, in particular be peelably sealed.

Preferably, the plug portion film 132 is identical to at least one, preferably with all the aforementioned films, so that to form the packaging according to the invention, only a single film material needs to be used.

In Figure 3, the structure of the film is shown in cross section, which is used to form the packaging body films 13 and 113, the edge component films 15 and 115 and the lid films 22 and 122.

The film laminate used has as an outer layer a layer 30 of releasably (peelably) sealable thermoplastic material, in the illustrated example of oriented polypropylene (OPP) with a layer thickness of about 30 microns.

Adjoining the outer layer 30 is a printable, ie ink-receiving, layer 32. In the illustrated example, this printable layer is formed by a layer of polyethylene terephthalate (PET) with a layer thickness of about 12 microns.

A barrier layer 34 adjoins the side of the PET layer 32 facing away from the OPP layer 30. In the example shown, this is an aluminum layer of about 8 μm layer thickness.

At the side facing away from the PET layer 32 side of the aluminum layer 34 finally closes as a second outer layer 36, a layer of insoluble sealable thermoplastic material. In the example shown, the second outer layer 36 by polypropylene (PP) with a layer thickness of formed about 70 microns.

The advantage of this laminate construction also lies in the fact that in the case of the packaging 10 shown in FIG. 1, sealable outer layers 36 or 32 abut one another with foils to be joined and at the same time the ink receiving layer 32 lies farther out than the barrier layer 34, so that the Ink-receptive layer 32 always remains perceptible and is not obscured by the barrier layer 34.

The first edge component section 14a and the packaging body 12 are non-detachably connected to one another via the outer layers 36 of the films involved.

The second edge component section 14 and the cover film 22 are peelably connected to one another via adjoining outer layers 30 of the films involved 15 and 22.

The plug portion 20a, which is also made of polypropylene for this purpose, in turn, via the outer layer 36 of the lid film 22 is inextricably linked thereto.

Except for the connection of plug portion 20a with the lid film 22 applies to the example shown in Figure 2 the same. There is only formed of oriented polypropylene outer layer 30 with the

Connecting section 120b of the plug portion 120a connected inextricably, but this by the identical choice of material (polypropylene) for this outer layer and the plug portion 120a is no problem.

In the illustrated examples, the packaging opening 16; 116 in the unlocked state of the package 10; 110, ie at undeformed second edge component section 14c; 114 a smaller diameter than the in the packaging opening 16; 116 insertable plug portion 20a; 120a of the lid 20; 120. The packaging opening 16; 116 is therefore upon depression of the plug portion 20a; 120a into them against the material elasticity of the second edge component portion 14c; 114c expanded. The edge 14d; 114d of the edge member 14; 114 is in accordance with the material properties with a caused by this expansion elastic force and thereby further caused friction at the plug portion 20a; 120a of the lid 20; 120 and holds this releasably in the closed position.

Claims

claims

A reclosable package having a packaging body (12; 112) with a packaging opening (16; 116) bordering

Edge component (14; 114), which is permanently connected to the packaging body (12; 112), as well as with a cover (20; 120) held on the edge component (14; 114), the packaging opening (16; (12; 112) at least in a section (12a; 112a) receiving the edge component (14; 114) in the

Essentially formed from a flexible packaging material film (13; 113), wherein the lid (20; 120) in the first sealed packaging state is connected to the edge component (14; 114) 5 by a first detachable connection in the form of a bond or seal; in a resealed

Packaging state after a first opening by a second, separate from the first formed releasable and recoverable connection with the edge member (14; 114) is connected, characterized in that the lid (20; 120) an imo resealed packaging state the packaging opening

120a) and an inextricably connected to the plug portion (20a; 120a) connected flexible lid sheet (22; 122), of which a joining portion (22d; 122d) in the first locked state with the edge member (14; 114) 5 is connected to form the first releasable connection and the

Plug portion (20a; 120a) in the reclosed state with the edge member (14; 114) forms the second detachable connection.

A resealable package according to claim 1, characterized in that the edge component (14; 114) is formed from a flexible edge component film (15; 115) which is in contact with the package body film (13; 16, 116) is permanently connected.

3. reclosable package according to claim 1 or 2, characterized in that the edge component (14; 114) has a first edge component portion (14a, 114a), which is insoluble with

5) of the packaging body film (13; 113), and a second edge component portion (14c; 114c) which is connected to the packaging body film (13; 113) only via the first edge component portion (14a; 114a) and preferably of this protrudes.

10

4. reclosable package according to claim 2 or 3, with the inclusion of claim 2, characterized in that the mating portion (22d; 122d) with Erstverschlossener packaging (10; 110) with a portion of the i5 edge component film (15; 115), preferably in Area of the second

Randbauteilabschnitts (14c, 114c), releasably, preferably abschälbar, more preferably by sealing, is connected.

5. resealable packaging according to claim 3 or 4, characterized in that one with the first

In the case of a first-sealed package, when the packaging section (12a, 112a) is first sealed, it protrudes outward beyond a lid portion situated outside the edge component (14, 114), viewed from the interior (18, 118) of the packaging.

6. reclosable package according to one of the preceding claims, optionally incorporating claim 2, characterized in that at least one film of the so packaging body film (13; 113), the lid film (22; 122) and optionally the edge component Film (15; 115) is a laminate of at least two film layers (30, 32, 34, 36), of which one layer forms a barrier layer (34), preferably a metal layer, bβspecially preferred is an aluminum layer.

7. resealable packaging according to one of the preceding claims, optionally incorporating claim 2,

5 characterized in that at least one foil from the

The packaging film (13; 113), the cover film (22; 122) and optionally the edge component film (15; 115) is a laminate of at least two film layers (30, 32, 34, 36), of which at least one Outer layer (30), preferably both outer layers, are formed by lo a sealable thermoplastic.

8. reclosable package according to one of the preceding claims, optionally incorporating claim 2, characterized in that at least one film of the i5 packaging film (13; 113), the lid film (22; 122) and optionally the Randbauteil- Film (15; 115) is a laminate of at least two film layers (30, 32, 34, 36), of which at least one layer (32) is designed for receiving printing inks.

20

9. reclosable package according to one of the preceding claims, including claim 2, characterized in that the packaging body film (13; 113) and the edge component film (15; 115) as film laminates in the substantially identical layers (30, 32 , 34, 36), preferably have the same layer structure, particularly preferably are substantially identical.

A reclosable package according to any one of claims 6 to 9, 30 when appended to claim 6, characterized in that the edge component film (15; 115) and the lid film (22; 122) as film laminates have substantially identical layers (10; 30, 32, 34, 36), preferably the same Have layer structure, particularly preferably are substantially identical.

A resealable package according to any one of the preceding claims, characterized in that the lid film (22; 122) spans the plug portion (20a; 120a).

12. A resealable package according to one of the preceding claims, characterized in that the cover film (22; 122) in its plane of extent in at least one spatial direction, preferably in two mutually orthogonal spatial directions has a larger dimension than the plug portion (20a, 120a).

A reclosable package according to claim 12, characterized in that the plug portion (20a; 120a) extends along a longitudinal axis (Z) and the lid sheet (22; 122) extends the plug portion (20a; 120a) with respect to the longitudinal axis (Z ) surrounds radially on the outside.

14. reclosable package according to one of the preceding claims, characterized in that the plug portion (20a; 120a) in the reclosed packaging state, possibly also in the first-closed packaging state at a radially inner edge of the edge component (14;

15. A reclosable package according to claim 14, characterized in that the plug portion (20a; 120a), in the reclosed packaging state, if appropriate also in the first sealed packaging state, is held by a material-elastic clamping by the edge component (14; 114).

A reclosable package according to claim 15, characterized in that the edge member (14; 114) forms an edge (14d; 114d) of the packaging opening (16; 116), wherein dimensions of the plug portion (20a; 120a) are greater than associated dimensions the packaging opening (16; 116) defined by the edge component (14; 114).

17. reclosable package according to one of the preceding lo claims, characterized in that the plug portion (20a, 120a) from the cover film (22; 122) protruding, in particular orthogonally projecting, shell portion (2Of; 12Of).

i5

18. The resealable package according to claim 17, characterized in that the jacket section (2Of; 12Of) revolves around a reference axis (Z) which is substantially orthogonal to the plane of extent of the cover film (22;

20

19. reclosable package according to claim 18, characterized in that one with respect to the reference axis (Z) radially within the shell portion (120 a) located wall portion (120 g) of the plug portion (120 a) together with the

25 jacket portion (12Of) and the lid film (122) has a storage space

(130) encloses.

20. reclosable package according to claim 19, characterized in that in the storage space (130) a so-called scavenger material, in particular for the binding of

Gases, especially oxygen and / or ethylene, for the binding of moisture or / and for the absorption of predetermined substances, is included.

21. reclosable package according to one of claims 18 to 20, characterized in that with respect to the reference axis (Z) 5 radially within the shell portion located wall portion (12Og ') of the plug portion (120a) with the lid film (122), preferably insoluble , connected is.

22. reclosable package according to one of claims 18 to lo 20, characterized in that the wall portion (12Og ") by a, preferably releasably connected to the of the cover film (122) fem located end portion of the jacket portion (12Of), preferably formed by sealing cover sheet (132) is formed i5.

23. reclosable package according to one of claims 18 to 22, characterized in that the jacket portion (2Of; 12Of) 20 at least along a peripheral portion, preferably completely circumferentially, with respect to the reference axis (Z) radially outwardly projecting Verrastungsaustülpung (34; ) having.

24. reclosable package according to claim 23,

25 characterized in that the latching protuberance has a lead-in bevel (34a; 134a) inclined relative to the opening area of the packaging opening (16; 116), which introduces the plug portion (20a; 120a) into the packaging opening (16; 116) to produce the re-sealed one wrapping state

30 relieved.

25. reclosable package according to any one of claims 17 to 24, characterized in that the shell portion (2Of; 12Of) in the first closed packaging state in the direction of the packaging interior (18; 118) protrudes away from the lid film (22; 122), preferably at a first locked state with 5 one of the packaging interior (18; 118) side facing away

(22c; 122c) of the cover sheet (22; 122) is permanently connected.

26. reclosable package according to one of the preceding claims, lo characterized in that the plug portion (20a, 120a) at least partially, preferably completely, from a flexible plug portion film is formed.

27. reclosable package according to claim 26, i5 inclusion of claim 9 or 10, characterized in that the plug portion film is a film laminate of at least two film layers (30, 32, 34, 36), which layers, preferably the same layer structure has, as the packaging body film and / or the Randbauteil- 20 film and / or the lid film, more preferably to at least one of said films is substantially identical.

A resealable package according to any one of the preceding claims,

25 characterized in that the lid film (22; 122) as

A tear tab (22a, 122a) which preferably protrudes over an outer edge (at 12a, at 112a) of the package to facilitate its gripping by a user.

30

29. reclosable package according to one of the preceding claims, characterized in that the lid film (22; 122) in first closed packaging state is essentially flat.