Technical Field
[0001] The present invention generally relates to the field of opening systems. More particularly,
the present invention relates to an opening system for containers having food products
therein, a method of producing the opening system, and a container comprising the
opening system.
Background
[0002] Today there are several opening systems used for containers depending on how the
container is made and how it is used. The configuration of an opening in a container
has impact on several aspects of the finished container, including ease of use, both
in terms of the operation of the opening system itself, and how well the opening system
cooperates with the purpose of the container and the filling product. The type of
product influences for example the desired width of the opening, e.g. a wider opening
can facilitate the extraction of a highly viscous filler product from the container.
The manufacturing process of the container set limitations on how the opening can
be configured in the final container. While it is necessary to follow the specifications
dictated by a particular manufacturing process, it is desired to appeal to as many
of the end user requirements on the container as possible. Known opening systems typically
lead to compromises on either the manufacturing side or the end user side. Manufacturing
compromises include for example increased waste of the manufacturing material or more
complex processes with lower throughput and increased costs. Whereas compromises on
the user side impact the functionality, such as opening systems that lead to significant
filler product residues and waste, or opening systems that are difficult to operate
for some people with for instance motor skill injuries which makes it hard for them
to open containers or elderly people having a lowered muscular capability.
[0003] Hence, an improved opening system would be advantageous and in particular allowing
for avoiding more of the above mentioned problems and compromises.
Summary
[0004] Accordingly, examples of the present invention preferably seeks to mitigate, alleviate
or eliminate one or more deficiencies, disadvantages or issues in the art, such as
the above-identified, singly or in any combination by providing a device according
to the appended patent claims.
[0005] According to a first aspect an opening system for a container of a packaging material
is provided, wherein the opening system comprises a strip zone to be opened when opening
the container, the strip zone extending between a first location and second location
when arranged on a plane of packaging material for a container, whereby the container,
upon opening of the strip zone, has an opening that extends along the opened strip
zone between the first and second location. The opening system further comprising
a grip element attached to the strip zone adjacent the first location for opening
of the strip zone when moving the grip element, and wherein the strip zone extends,
when arranged on a plane of packaging material for a container, in a longitudinal
direction of the strip zone, in at least two non-parallel directions in said plane.
[0006] According to a second aspect a method of producing an opening system for a container
is provided, the method comprising providing a packaging material, providing a strip
zone in the packaging material to be opened when opening the container, the strip
zone extending between a first location and second location in the packaging material,
and attaching a grip element to the strip zone adjacent the first location, and wherein
providing the strip zone comprises extending the strip zone in at least two non-parallel
directions in a plane of the packaging material between the first and second location.
[0007] According to a third aspect a container comprising an opening system according to
the first aspect is provided.
[0008] Further examples of the invention are defined in the dependent claims, wherein features
for the second and third aspects of the disclosure are as for the first aspect mutatis
mutandis.
[0009] Some examples of the disclosure provide for a greater variance in the dimensions
of the opening in a container for a fixed dimension of the container.
[0010] Some examples of the disclosure provide for improved optimization of the dimensions
of the opening with respect to the filler material in the container.
[0011] Some examples of the disclosure provide for an easier opening of the opening system.
[0012] Some examples of the disclosure provide for a quicker opening of the opening system.
[0013] Some examples of the disclosure provide for an opening system where it is easier
to grip, and maintain a grip, for opening the opening system.
[0014] Some examples of the disclosure provide for an opening system where it is easier
to maintain a container in the open state.
[0015] Some examples of the disclosure provide for less residues and waste of filler material
in a container after having consumed or extracted the filler material through the
opening.
[0016] Some examples of the disclosure provide for a quicker extraction of the filler material
from the container.
[0017] Some examples of the disclosure provide for a more efficient use of packaging material.
[0018] Some examples of the disclosure provide for a simpler manufacturing process.
[0019] Some examples of the disclosure provide for an opening system where less force is
required to initially break open the opening.
[0020] Some examples of the disclosure provide for a more compact opening system.
[0021] Some examples of the disclosure provide for an opening system which has a reduced
profile to facilitate stacking of multiple containers.
[0022] Some examples of the disclosure provide for an opening system configured to give
a cleaner cut or tear of the opening.
[0023] Some examples of the disclosure provide for increasing the robustness of the opening
system.
[0024] It should be emphasized that the term "comprises/comprising" when used in this specification
is taken to specify the presence of stated features, integers, steps or components
but does not preclude the presence or addition of one or more other features, integers,
steps, components or groups thereof.
Brief Description of the Drawings
[0025] These and other aspects, features and advantages of which examples of the invention
are capable of will be apparent and elucidated from the following description of examples
of the present invention, reference being made to the accompanying drawings, in which
Fig. 1 is a top view of an opening system for a container;
Fig. 2 is a detail of an opening system in a top view;
Figs. 3a-f are views of an opening system, in which Figs. 3a-d are top views and Figs.
3e-f are perspective views where the packaging material has been folded;
Fig. 4 is a view from the reversed side of an opening system, relative the top view
seen in Fig. 1;
Fig. 5 is a detail of an opening system on the reversed side;
Fig. 6 is a side view of a detail of an opening system; and
Fig. 7 is a flowchart of a method of producing an opening system.
Detailed Description
[0026] Specific examples of the invention will now be described with reference to the accompanying
drawings. This invention may, however, be embodied in many different forms and should
not be construed as limited to the examples set forth herein; rather, these examples
are provided so that this disclosure will be thorough and complete, and will fully
convey the scope of the invention to those skilled in the art. The terminology used
in the detailed description of the examples illustrated in the accompanying drawings
is not intended to be limiting of the invention. In the drawings, like numbers refer
to like elements.
[0027] Fig. 1 illustrates an example of an opening system 100 for a container, where the
container is formed of a packaging material 101. The opening system 100 comprises
a strip zone 102 to be opened when opening the container. The strip zone 102 extends
between a first location 103 and second location 104 when arranged or provided on,
or in, a plane 107 of the packaging material 101. Fig. 1 illustrates a plane 107 of
the packaging material 101 that extends between upper and lower horizontally aligned
dashed lines (denoted with upper and lower reference numerals 119 and 108, respectively),
in which the strip zone 102 lies. This means that a container with such strip zone
102 has an opening that extends along the opened strip zone 102 between the first
103 and second location 104. The strip zone 102 may be an area in the packaging material
that has a reduced resistance to shear forces inflicted into the packaging material
101 when engaging to open the container with the strip zone 102. The strip zone 102
may in that sense comprise a layer of material of reduced thickness, and/or a material
having a reduced strength in one or two of the directions of the opening direction
of the strip zone 102, or other weakening elements such as micro perforations, or
a different type of packaging material. The strip zone 102 may comprise a pre-punched
hole in the packaging material 101 that has been covered with a layer of a secondary
sealing material such as a laminate, aluminum foil or other material for preventing
any food product to leak. The strip zone 102 may be an area that is being ripped off
of the packaging material 101 when opening the container, i.e. removed from the packaging
material 101. It is also conceivable that the strip zone 102 encompass an area that
is otherwise torn or perforated to produce a hole in the strip zone 102 while the
torn or perforated material remains largely attached to the packaging material 101,
for example along the edges of the strip zone 102. The opening system 100 comprises
a grip element 105 attached to the strip zone 102 adjacent the first location 103.
The grip element 105 is configured for opening of the strip zone 102 when moving the
grip element 105, for example in a pulling, pushing, twisting or similar action, so
that a force is transferred via the grip element 105 into the strip zone 102, for
opening the latter.
[0028] The strip zone 102 extends, when arranged on the plane 107 of packaging material
101 for a container, in a longitudinal direction 106 of the strip zone, in at least
two non-parallel directions (A, A', A"), on the plane 107. Fig. 1 illustrates a plane
107 of the packaging material 101 in which the strip zone 102 lies in this example.
Lower edge 108 and upper edge 119 of the plane 107 may be the edges of the packaging
material 101, i.e. defining the edges of the sheet of the packaging material from
which the container is formed. In this case, lower and upper edge 108, 119, may be
subsequently joined together to form a container. Edges 108 and/or 119 may also be
the edges of a container formed from the packaging material 101, i.e. defining a packaging
material plane 107 on a side, such as a front face, of such container. In the example
shown in Fig. 1, the longitudinal extension 106 of the strip zone 102 follows first
a first direction (A), starting from the first location 103, and then a second direction
(A') in the plane 107, towards the second location 104, and where the second direction
(A') is non-parallel to the first direction. For a grip element 105 having a fixed
geometry relative its fixation point, at the first location 103 of the strip zone
102, it is thus possible to extend the opening of a container along a path of longitudinal
extension independent of the limitations posed by the location and geometrical arrangement
of the grip element 105 in the plane 107 of the packaging material 101. The grip element
105 typically has a preferred orientation and placement relative the strip zone 102,
in order to provide the best grip and/or allowing opening of the strip zone 102 with
the least amount of force while still being positioned to best avoid unintentional
opening. Thus, the container opening system 100 may for example follow a path - i.e.
the path of the strip zone 102 - independent of such restraints to better fulfill
requirements such as needing a certain width of the opening such as the full width
of the container, to easily extract the contents of the container, with a minimum
amount of content residues remaining in the container for a given extraction time.
A preferred position of the first location 103 of the strip zone and the grip element
105 attached thereto can be close to an edge 108. The edge 108 may be a packaging
material edge that is to be joined and sealed against a corresponding edge to form
a container. Starting with the strip zone 102 closer to the edge 108 provides for
maximizing the size of the opening for a given width of packaging material 101. At
the same time, it is desired to not compromise on the opening mechanism, which can
be the case when pushing the limits of packaging material real estate which can lead
to undesired miniaturization of the opening mechanism that can be inefficient or difficult
to operate. As mentioned above, the present disclosure provides for avoiding such
compromises in that the restraints posed by having a preferred orientation, geometrical
arrangement, or size of the grip element 105 for ease of operation, are not limiting
when having the strip zone 102 extending in at least two non-parallel directions (A,
A') in the plane of the packaging material 107. This is due to that the strip zone
may extend in an direction (A') in which the opening of the container will largely
extend (e.g. vertically in Fig. 1), while in a position close to the edge 108 extend
in another direction (A) (e.g. horizontally in Fig. 1) in order to accommodate a desired
arrangement or size of the grip element 105 that would otherwise be limited by the
close proximity to the edge 108 of the packaging material 101. A better utilization
of the available space is thus provided. This in turn can save the amount of packaging
material used. For example, a container to storing a specific volume may have to be
increased in size in certain dimensions if having requirements on the width of the
opening. This in turn may not be possible if it is desired to have a specifically
dimensioned container. Thus, it is provided for maximizing the width of the opening,
e.g. minimizing the distance (d) between the strip zone 102 and the packaging material
edge 108, illustrated in Fig. 1, while maintaining ease of operation and efficiency
of the opening system 100, including the grip element 105. For example, in Fig. 1,
lower and upper edges 108, 119, may be joined together, forming a tub-like container,
so that the wider opening provides a lid of the tube-like container, that can be completely
opened with ease, and stay opened when removing the material in the container.
[0029] The at least two non-parallel directions (A, A', A") may intersect at a first angle,
which can be perpendicular (V1), as seen in the example in Fig. 1, or oblique (V2)
as illustrated in Fig. 3b, or acute (V3) as illustrated in Fig. 3d, if comparing the
same intersection between the least two non-parallel directions (A, A', A"). It may
be desirable to have the strip zone 102 tracking a variety of paths in the packaging
material 101 depending on the type of container and application in which the opening
system 100 is to be used, in order to get the desired configuration and orientation
of the opening. In Fig. 3b, for example, the edge 108 may extend in a certain oblique
angle (V2), in a first direction (A), relative the transverse direction (A') in which
it is desired to have the extension of the opening. Fig. 3d illustrates an example
where the opening, i.e. the strip zone 102, also extends across substantially the
entire width in the transverse direction (A') but where the first direction (A) in
which the strip zone extends, from its first location 103, has been angled further
inwards into the plane 107, increasing the distance to the edge 108. This can provide
for an even more accessible grip element 105, e.g. being larger in size or having
an angle that allows for an easier grip, while maintaining a maximum width of the
opening. Fig. 3d shows a strip zone 102 that approximates a semi-circular shape, that
also extends in a third direction (A") adjacent the second location 104, which may
also be advantageous for certain applications, e.g. where it is desired to provide
an opening in the form of a lid on e.g. the face of a container.
[0030] The grip element 105 may have a longitudinally extending direction (B) that is parallel
to one of the least two non-parallel directions (A, A', A"). Fig. 1 shows an example
where the grip element 105 has an elongated shape and extends in a longitudinal direction
(B), which is parallel to the direction (A) in which the strip zone 102 is to be initially
opened, here referred to as the first direction (A). When having the first direction
(A) aligned along the edge 108 of the packaging material, and the grip element 105
aligned along the same, at the first location 103, then the grip element 105 can fulfill
the requirements as discussed previously with respect to user friendliness and efficient
operation - e.g. maintaining a certain minimum dimension for gripping with the fingers
- while maintaining the necessary opening width along the second direction (A') in
which the strip zone extends, being non-parallel to the first direction (A). This
also minimizes the distance (d) from the opening to the edge 108. It could in an example
be even zero or close to zero.
[0031] The grip element 105 may be attached to the strip zone at a distal end 109 of the
grip element 105, as illustrated in Fig. 1. The grip element 105 may extend from the
distal end 109 in the longitudinally extending direction (B) which is opposite the
direction (A) in which the strip zone 105 is to be initially opened. Having the grip
element 105 extending from the distal end 109 opposite the direction in which the
strip zone 105 is to be initially opened maximizes the momentum exerted from the grip
element 105, via its attachment to the strip zone 102, onwards to the strip zone itself,
for breaking open the same at the onset of opening. This reduces the required force
needed to break the opening.
[0032] Figs. 3e-f illustrate examples where the packaging material has been folded along
an edge 108' of the packaging material 101 to form a container 300. As seen in Fig.
3f, the at least two non-parallel directions (A, A') lie in the same plane 107 of
the packaging material, which is construed as the surface area 107 within the edge
108 and the folding line 108'. Compared to Fig. 3e, it is clear that the strip zone
102 can be placed closer to the edge 108, while maintaining the same longitudinal
extension of the grip element 105, in accordance with the advantages described above
in relation to having the at least two non-parallel directions (A, A'). Fig. 3f illustrates
that this advantageously provides a larger pivotable lid on top of the container above
the strip zone 102. Also, since the corresponding residual distance (d) (illustrated
in Fig. 1) between the strip zone 102 and the edge 108 is minimized, it will be easier
to keep the lid in the open position, due to less material at the position of the
container where the distance (d) is located - material which would otherwise restrain
the pivoting action of the lid.
[0033] The at least two non-parallel directions (A, A', A") may lie in the same plane of
the packaging material as a longitudinal sealing edge 108 of the packaging material.
This is advantageous since, during manufacturing, the strip zone 102 and resulting
opening can be placed close to the edge 108 of the packaging material 101 as explained
above. It is also conceivable that the edge is instead a folding edge 108', e.g. when
it is desired to have the opening extending on a front face of the container only,
and not to the sides. In such case the packaging material edge 108, i.e. sealing edge
108, may in some applications be located on another face of the container, but the
advantages described above still applies to the opening at the front face of the container.
[0034] Referring again to Fig. 1, the strip zone 102 at the first location 103 extends,
in a longitudinal direction 106 thereof, in a direction (A) in which the strip zone
102 is to be initially opened and which may be parallel to a longitudinal sealing
edge 108 of the packaging material 101, as illustrated. The strip zone 102 bends into
a second direction (A', A") in which it extends, towards the second location 104,
whereby the second direction (A', A") is non-parallel to the direction in which the
strip zone is to be initially opened (A), i.e. the first direction (A). Having the
first direction (A) aligned parallel with the edge 108 provides for minimizing the
distance (d) between the strip zone 102 and the edge 108. It is conceivable that the
first direction (A) is aligned with an angle to the edge 108, as may be required for
certain applications.
[0035] The grip element 105 may lie flush with the plane 107 of the packaging material 101,
which is illustrated in the side view of Fig. 6. The grip element 105 may further
comprise an angled extension 110 at a proximal tip 111 of the grip element, opposite
a distal portion 109 thereof, being angled away from the plane of the packaging material.
This provides for easily lifting the grip element 101 from the surface of the packaging
material 101 while keeping a flush profile that prevent accumulation of chemicals,
e.g. peroxide, during the production process. The compact design also facilitates
stacking and packing several containers together.
[0036] The strip zone 102 may extend at least partly along a non-straight path so that it
forms a curvature 118 between the first 103 and second location 103, as illustrated
in Fig. 1. The curvature allows a smooth transition when the opening propagates along
the strip zone 102, during the opening process, between the at least two non-parallel
directions (A, A', A") in a plane 107 of the packaging material 101. This can prevent
undesired tearing of the packaging material 101 outside the strip zone 102. The radius
of curvature can be chosen depending on the properties of the packaging material 101,
where more brittle materials can benefit from a larger radius.
[0037] The opening system 100 may further comprise an opening element 112 attached to the
strip zone 102 at an inside of the packaging material 101, and being fixedly arranged
in relation to the grip element 105. The opening element 112 is illustrated in e.g.
Figs. 4-5 showing the bottom side of the opening system, relative to the top view
in Fig. 1. The opening element 112 may be configured to be removed from the inside
of the packaging material 101 when moving the grip element 105 when opening the strip
zone 102. The opening element 112 can facilitates opening the strip zone 102, since
it may cut through the edges of the strip zone 102. Further it provides for a robust
opening system 100 since forces exerted onto the external grip element 105 can propagate
to the internal opening element 112 where the force can dissipate over a larger surface
area, reducing any pressure on the single external location on the opening strip 102
where the grip element 105 is attached. The grip element 105 is connected with the
opening element 112 through the sealing strip zone 102 (indicated by the portion 102
in Fig. 5), for example by extending through the strip zone 102. Or the grip element
105 and the opening element 112 may be joined with fixation means to either side of
the strip zone 102. The grip element 105 and the opening element 112 may be injection
molded in a single piece. The opening element 112 may extend on the inside of the
packaging material 101 along the entire length of the strip zone 102, as illustrated
in Fig. 4.
[0038] The opening element 105 may comprise a tapered portion 113 adjacent the grip element
105, as illustrated in Fig. 5. The tapered portion 113 can penetrate the strip zone
102 when pulling the grip element 105, so that less force will be required to break
the opening. It is conceivable that any protrusion with reduced cross-sectional dimension
with respect to the opening element 112 can facilitate in such a manner.
[0039] A tip 114 of the tapered portion 113 may be centrally aligned with an elongated rib
116 in the distal portion 109 of the grip element 105 being attached to the strip
zone 102, which is illustrated in Fig. 2. The elongated rib 116 may be aligned with
the longitudinal extension (B) if the grip element 105. The rib 116 is arranged in
the interface of the connection between the grip element 105 and the opening element
112 via the strip zone 102. The opening force will in this manner be concentrated
to the tip 114 of the opening element 112, which will facilitate a more successful
and easier opening. Several ribs 116 may be aligned across a width 115 of the opening
element 105, and also be arranged in a V-shape to further improve transferring of
the force exerted on the grip element 105 to the opening element 112 at the inside
surface.
[0040] The opening system 100 may further comprise an opening support 117 at an outside
of the packaging material 101 which at least partly encompasses the opening strip
102 and extends in the at least two non-parallel directions (A, A', A"). The opening
support can provide a counterforce against the packaging material 101 when the strip
zone 102 is opened, thereby preventing tearing of the packaging material outside the
strip zone 102, and generally act as a guiding element along the at least two non-parallel
directions (A, A', A") during the opening.
[0041] The opening system 100 can be provided on various packaging materials 101. It is
conceivable that the opening system 100 is formed directly on the packaging material
101, e.g. by injection molding, or be attached to the packaging material in a modular
based manner, such as providing the opening support 117, and/or the opening element
112, and/or the grip element 105, as separated or integrated finished components that
are subsequently attached to a packaging material 101.
[0042] Fig. 7 illustrates a flowchart of a method 200 of producing an opening system 100
for a container. The method 200 comprises providing 201 a packaging material 101,
and providing 202 a strip zone 102 in the packaging material 101 to be opened when
opening the container. The strip zone 102 extends between a first location 103 and
second location 104 in the packaging material 101. The method 200 comprises further
attaching 203 a grip element 105 to the strip zone 102 adjacent the first location
103. Providing the strip zone 102 comprises extending 204 the strip zone 102 in at
least two non-parallel directions (A, A', A") in a plane 107 of the packaging material
101 between the first 103 and second 104 location. The method 200 provides for the
advantages described above.
[0043] The method 200 of producing an opening system may further comprise pre-making 205
an opening through the packaging material 101. The pre-made opening may extend along
the strip zone 101.
[0044] A container 300 is provided comprising an opening system 100, where the opening system
comprises a strip zone 102 to be opened when opening the container, the strip zone
extending between a first location 103 and second location 104 in the packaging material
101 of the container. The container 300, upon opening of the strip zone, has an opening
that extends along the opened strip zone between the first and second location. A
grip element 105 is attached to the strip zone adjacent the first location for opening
of the strip zone when moving the grip element. The strip zone extends, in a longitudinal
direction 106 thereof, in at least two non-parallel directions (A, A', A") in a plane
107 of the packaging material.
[0045] It should be readily understood that the general principle of the above description
is applicable to a variety of packages including food packages, such as Tetra Fino
Aseptic, but also other packages serving as containers for viscous fluids. Additionally,
the above description is applicable to a variety of packaging materials, such as a
pre-laminated packaging material and it is apparent for a skilled person that the
above principles would also be valid for other packaging material, also having various
types of treatments for e.g. secure an oxygen barrier, prevents light or other common
material treatments.
[0046] The present invention has been described above with reference to specific examples.
However, other examples than the above described are equally possible within the scope
of the invention. The different features and steps of the invention may be combined
in other combinations than those described. The scope of the invention is only limited
by the appended patent claims.
[0047] More generally, those skilled in the art will readily appreciate that all parameters,
dimensions, materials, and configurations described herein are meant to be exemplary
and that the actual parameters, dimensions, materials, and/or configurations will
depend upon the specific application or applications for which the teachings of the
present invention is/are used.
1. An opening system (100) for a container of a packaging material (101), the opening
system comprising;
a strip zone (102) to be opened when opening the container, the strip zone extending
between a first location (103) and second location (104) when arranged on a plane
(107) of packaging material (101) for a container, whereby the container, upon opening
of the strip zone, has an opening that extends along the opened strip zone between
the first and second location, and
a grip element (105) attached to the strip zone adjacent the first location for opening
of the strip zone when moving the grip element, and wherein the strip zone extends,
when arranged on a plane (107) of packaging material (101) for a container, in a longitudinal
direction (106) of the strip zone, in at least two non-parallel directions (A, A',
A") in said plane (107).
2. Opening system according to claim 1, wherein the at least two non-parallel directions
intersect at a first angle (V1, V2, V3), being perpendicular, oblique or acute.
3. Opening system according to claim 1 or 2, wherein the grip element has a longitudinally
extending direction (B) that is parallel to one of the least two non-parallel directions
(A, A', A").
4. Opening system according to claim 3, wherein the grip element is attached to the strip
zone at a distal end (109) of the grip element, and wherein the grip element extends
from the distal end in the longitudinally extending direction (B) which is opposite
the direction (A) in which the strip zone is to be initially opened.
5. Opening system according to any of claims 1 - 4, wherein the at least two non-parallel
directions (A, A', A") lies in the same plane when arranged on a plane (107) of the
packaging material.
6. Opening system according to any of claims 1 - 5, wherein the at least two non-parallel
directions (A, A', A") lies in the same plane, when arranged on a plane of the packaging
material, as a longitudinal sealing edge (108) of the packaging material.
7. Opening system according to any of claims 1 - 6, wherein the strip zone at the first
location extends, in a longitudinal direction thereof, in a direction (A) in which
the strip zone is to be initially opened and which is parallel to a longitudinal sealing
edge (108) of the packaging material, and wherein the strip zone bends into a second
direction (A', A"), in which it extends towards the second location, whereby the second
direction is non-parallel to the direction in which the strip zone is to be initially
opened.
8. Opening system according to any of claims 1 - 7, wherein, when arranged on a plane
(107) of the packaging material, the grip element lies flush with the plane (107),
the grip element further comprising an angled extension (110) at a proximal tip (111)
of the grip element, opposite a distal portion (109) thereof, being angled away from
the plane of the packaging material.
9. Opening system according to any of claims 1 - 8, wherein the strip zone extends at
least partly along a non-straight path so that it forms a curvature (118) between
the first and second location.
10. Opening system according to any of claims 1 - 9, further comprising an opening element
(112) attached to the strip zone, the opening element is configured to be arranged
at an inside of the packaging material, and being fixedly arranged in relation to
the grip element, whereby the opening element is configured to be removed from the
inside of the packaging material along with moving the grip element when opening the
strip zone.
11. Opening system according to claim 10, wherein the opening element comprises a tapered
portion (113) adjacent the grip element, the tapered portion penetrating the strip
zone when pulling the grip element, wherein a tip (114) of the tapered portion is
centrally aligned with an elongated rib (116) in the distal portion (109) of the grip
element being attached to the strip zone, the elongated rib being aligned with the
longitudinal extension (B) if the grip element.
12. Opening system according to any of claims 1 - 11, further comprising an opening support
(117) configured to be arranged at an outside of the packaging material and which
at least partly encompasses the opening strip and which extends in the at least two
non-parallel directions (A, A', A").
13. A method (200) of producing an opening system (100) for a container comprising;
providing (201) a packaging material (101),
providing (202) a strip zone (102) in the packaging material to be opened when opening
the container, the strip zone extending between a first location (103) and second
location (104) in the packaging material,
attaching (203) a grip element (105) to the strip zone adjacent the first location
(103), wherein providing the strip zone comprises extending (204) the strip zone in
at least two non-parallel directions (A, A', A") in a plane (107) of the packaging
material between the first and second location.
14. Method of producing an opening system according to claim 13 further comprising pre-making
(205) an opening through the packaging material, the opening extending along the strip
zone.
15. A container (300) comprising an opening system according to any one of claims 1-12.