CLOSABLE FOOD PACKING

Abstract

 The present invention relates to a closable food packing for temporarily storing a food product, such as a sandwich or a piece of bread with a topping. The food packing is made from a single folded sheet of greaseproof and semi-transparent or transparent material, such as paper or paper-based material. The food packing has a square front panel, a square back panel, and a flap obtained by folding the sheet along its width. The front panel and the back panel have the same width and the same length and are connected along one side by the fold of the sheet to form a first closed side. The sheet extending from the back panel beyond the front panel create the flap which is provided with adhesive material. The front panel and the back panel are further connected directly or indirectly to form a second closed side and a third closed side such that the food packing in total comprise three closed sides and one open side. The food packing is configured for receiving the food product through the open side, and the open side is configured to be releasably closed by folding the flap over the open side and fastening it onto the front panel by means of the adhesive material.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to food packing and in particular food packing for temporarily storing a food product, such as a sandwich or a piece of bread with a topping, e.g. in a lunch package.

BACKGROUND OF THE INVENTION

[0002] In a number of situations, it is either necessary or convenient to transport food from a place of preparation to a place of consumption. This is e.g. the case for children bringing a packed lunch, typically in the form of a plurality of closed sandwiches or pieces of bread with a topping, to kindergarten or school. A number of products exist for this purpose, including plastic wrapping, aluminum foil, and greaseproof paper. A typical way of packing the food is to wrap each sandwich or piece of bread individually in a piece of the wrapping which has been separated from a roll of wrapping. This often means that either more wrapping than necessary is used or that too small a wrapping is used causing the sandwich or piece of bread to fall out of the wrapping during handling or transportation. Another option is to use individual sheets of greaseproof paper arranged loosely around each sandwich or piece of bread and place them on top of each other in a re-useable box. In that case, it can be difficult, especially for small children, to choose another order of eating the food than from top to bottom in the package without getting the food mixed up or dropped. Hence, an improved food packing would be advantageous.

OBJECT OF THE INVENTION

[0003] It is an object of the present invention to provide a food packing with which the pieces of food packed therein remain in a condition as close to an initial condition as possible without being moved around within the food packing during handling and transportation.

[0004] It is another object of the present invention to provide a food packing with which food packed in a plurality of such food packings in a shared package, such as a lunch package, does not get mixed during handling and transportation.

[0005] It is another object of the present invention to provide a food packing with which it is easy to choose and remove a particular piece of food from a plurality of pieces of food packed individually in a plurality of such food packings in a shared package, such as a lunch package, while leaving the remaining pieces of food as intact as possible.

[0006] An object of the present invention is to provide an alternative to the prior art.

[0007] In particular, it may be seen as a further object of the present invention to provide a food packing that solves the above mentioned problems of the prior art.

SUMMARY OF THE INVENTION

[0008] Thus, the above described objects and several other objects are intended to be obtained in a first aspect of the invention by providing a closable food packing for temporarily storing a food product, such as a sandwich or a piece of bread with a topping, the food packing being made from a single folded sheet of greaseproof and semi-transparent or transparent material, such as paper or paper-based material, the food packing comprising:

• a square front panel, a square back panel, and a flap obtained by folding the sheet along its width, such that

  ∘ the front panel and the back panel have the same width and the same length and are connected along one side by the fold of the sheet to form a first closed side;

  ∘ the sheet extending from the back panel and beyond the front panel to create the flap, wherein the flap is provided with adhesive material;

• the front panel and the back panel are further connected directly or indirectly to form a second closed side and a third closed side, such that the food packing in total comprises three closed sides and one open side,

wherein the food packing is configured for receiving the food product through the open side, and the open side is configured to be releasably closed by folding the flap over the open side and fastening it onto the front panel by means of the adhesive material.

[0009] A food packing according to the present invention is advantageous as it is easy and cheap to manufacture. Only a few materials are necessary, and the food packing can easily be folded into a product ready to use.

[0010] The food packing according to the present invention is particularly configured for packed lunch with several different pieces of bread with a topping, whereby each piece of bread with a topping is put in a separate food packing. In this way, the topping from one piece of bread does not mix with topping from another piece of bread. However, the food packing may also be used for temporary storage of other kinds of food, such as cake or slices of fruit.

[0011] The food packing is made from semi-transparent or transparent material allowing the food to be viewed through the closable packing. If the food packing is used to temporarily store a lunch comprising several different pieces of bread with different topping, the person having his/her lunch can see the food product through the food packing and choose which one to eat first.

[0012] By "greaseproof" is meant having a resistance against moisture from food products typically packed in a lunch package penetrating through the material during use. The food packing is made from a greaseproof material, such that greasy or semi-wet filling or topping will not wet the sheet or the food in a neighboring food packing e.g. in a lunch package. The sheet may comprise a greaseproof coating with hydrophobic and/or oleophobic properties.

[0013] The sheet may e.g. be made from a type of material also used for other similar products such as baking paper or deli-paper.

[0014] In some embodiments, the front panel and the back panel are connected directly to form the second closed side and the third closed side by means of adhesive material provided in areas along the edges of the sheet. Such a configuration is advantageous as it is very simple and easy to produce.

[0015] In some embodiments, the front panel and the back panel are connected indirectly to form the second closed side and the third closed side by means of two symmetrical triangular side panels extending from each side of the front panel, and two symmetrical triangular side panels, extending from each side of the back panel, wherein a triangular side panel of the front panel and a triangular side panel of the back panel overlap each other and are adhered to each other at part of the overlap by means of adhesive material to form a closed side with a height tapering from the open side to the first closed side. By "height" is referred to the dimension perpendicular or substantially perpendicular to the back panel. The height could also be considered a depth of the packing. Such a configuration is advantageous as a food packing with a height tapering from the open side toward the first closed end can hold a larger, such as thicker, food product than a food packing with no height. Due to the specific configuration, such a food packing is still very simple and easy to produce, as only a small amount of extra sheet material is necessary to obtain a larger volume to hold the food product.

[0016] In some embodiments, the sheet is folded along its width at least twice to form a bottom panel between the front panel and the back panel, such that the front panel and the back panel are connected indirectly through the bottom panel to form the first closed side, having a height, wherein the front panel and the back panel are further connected indirectly to form the second closed side and the third closed side by means of two symmetrical rectangular side panels extending from each side of the front panel, and two symmetrical rectangular side panels extending from each side of the back panel, wherein a rectangular side panel of the front panel and a rectangular side panel of the back panel overlap each other and are adhered to each other at part of the overlap by means of adhesive material to form a closed side with a height being the same from the first closed side to the open side. Such a configuration is advantageous as a food packing with a height being the same from the opening to the first closed end can hold a larger, such as thicker, food product than a food packing with no height and a food product with a height tapering from the open side to the first closed end. Due to the specific configuration, such a food packing is still very simple and easy to produce, as only a small amount of extra sheet material is necessary to obtain a larger volume to hold the food product.

[0017] In some embodiments, the front panel and the back panel each have a length between 12-20 cm, preferably between 15-18 cm; and a width between 6-10 cm, preferably between 7-9 cm. By "length" is meant the dimension between the bottom closed side and the top open side. By "width" is meant the direction perpendicular hereto. In such embodiments, the length of the front panel is longer than the width of the front panel, and the open side is provided along the width of the front panel, e.g. along a larger side of the food packing. Such a configuration is advantageous, as the food package is specifically designed for temporarily storage of bread with a topping, preferably a rectangular piece of bread. Thus, the shape of the food packing is preferably rectangular and adapted to hold one piece of bread with a topping.

[0018] In some embodiments, the front panel and the back panel each have a width between 12-20 cm, preferably between 15-18 cm; and a length between 6-10 cm, preferably between 7-9 cm. In such embodiments, the length of the front panel is smaller than the width of the front panel and the open side is provided along the width of the front panel, e.g. along a longer side of the food packing. Such a configuration is advantageous, as the opening for receiving the food product is bigger, which makes it easier for the user to place the food product in the food packing and also to retrieve the food product again when needed.

[0019] In some embodiments, the side panels have a length which is the same as the front panel and the back panel, and a width which varies between 0-3 cm, preferably between 0-2 cm, resulting in a height of the food packing between 0-3 cm.

[0020] In some embodiments, the bottom panel has a length between 0.1-3 cm, resulting in a height of the food packing between 0.1-3 cm.

[0021] In some embodiments, the height of the side panels and/or the bottom panel are substantially the same. This will be a suitable design for corresponding shapes of food products.

[0022] In some embodiments, the flap is rectangular having the same width as the front panel and the back panel and having a length which is smaller than the length of the front panel, preferably less than half the length of the front panel, such as between 1-7 cm, preferably between 1.5-3 cm. Such a design has been found suitable for safely arranging the flap over the opening without using more material for the food packing than necessary.

[0023] In some embodiments, the adhesive material on the flap is provided in a straight line or area along an edge of the flap, extending along the width of the flap. This is advantageous as the open side can be closed in a substantially sealed manner. Furthermore, such a closing is easy to produce in a manufacturing process.

[0024] In some embodiments, the adhesive material on the flap is covered by a release liner until use. A release liner is a paper or plastic-based film sheet, which has typically been applied during the manufacturing process, used to prevent a sticky surface from prematurely adhering. It is coated on one or both sides with a release agent which provides a release effect against any type of a sticky material such as an adhesive or a mastic. Thus, covering of the adhesive material on the flap with a release liner is advantageous as prematurely adhering of the flap to other surfaces is avoided before use, and the food packing can be easily stored until use.

[0025] In some embodiments, the food packing further comprises a gripping tab extending from the flap and configured for gripping when manually opening of the food packing after it has been closed. This is advantageous, as it allows a user of the product to open the food packing easily when he/she needs to retrieve a food product stored within the closed food packing.

[0026] In some embodiments, the side panels and/or the bottom panel comprise a folding line around which the side panels and/or the bottom panel can be either folded around the folding line to obtain a flat food packing or straightened around the folding line to obtain an expanded food packing. By "straightened" is preferably meant that the food packing is expanded to its configuration ready to receive the food product. This is advantageous as a bunch of food packings can be stores on top of each other in a flat configuration, without disturbing their shape or taking up too much space. Furthermore, when in an expanded configuration, a food packing with a height can hold a larger food product than a food packing with no height.

[0027] In some embodiments, the sheet is made from a material having a plasticity allowing the sheet to be folded and to keep a folded shape after being folded. This is advantageous, as it makes the sheet easy to handle and to easily fold it into a food packing.

[0028] The sheet has a pre-determined shape. In some embodiments, the sheet is a square sheet of paper, preferably a rectangular sheet of paper. In some embodiments, the sheet has a shape comprising two trapezes and a square. "Square" is herein defined as quadratic or rectangular.

[0029] In a second aspect, the present invention relates to a method for making a closable food packing as described herein. The food packing is made by the following steps:

• cutting a sheet in a pre-selected shape;
• adding adhesive material at pre-determined areas of the sheet, wherein the adhesive material is added to

  ∘ the edges of the sheet constituting the front panel and/or the back panel of the food packing, or

  ∘ the edges of the sheet constituting the side panels of the front panel and/or the back panel; and

  ∘ to part of the sheet constituting the flap of the food packing;

• covering the adhesive material on the flap by a releasable liner;
• folding the sheet at least once along its width to obtain a food packing with three closed sides and one open side.

[0030] The first and second aspect of the present invention may each be combined with each other. These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter.

BRIEF DESCRIPTION OF THE FIGURES

[0031] The closable food packing according to the present invention will now be described in more detail with regard to the accompanying figures. The figures show one way of implementing the present invention and is not to be construed as being limiting to other possible embodiments falling within the scope of the attached claim set.

Figure 1 is a schematic illustration of a closable food packing according to a first embodiment of the present invention.

Figure 2 is a schematic illustration of a closable food packing according to a second embodiment of the present invention.

Figure 3 is a schematic illustration of a closable food packing according to a third embodiment of the present invention.

Figure 4 is a schematic illustration of a closable food packing according to a fourth embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0032] Reference is made to fig. 1 schematically illustrating a closable food packing 1 according to a first embodiment of the present invention. Fig. 1A shows a three-dimensional view of the food packing 1, whereas figs. 1B-1E show top-views of a sheet 2 and how it is folded to obtain a closed food packing 1.

[0033] As illustrated in fig. 1B, the food packing 1 is made from a single rectangular sheet 2 of material provided with adhesive material 12 at pre-determined areas at the edges of the sheet 2. The sheet 2 is folded once along its width to obtain a rectangular front panel 3, a rectangular back panel 4 and a rectangular flap 5 extending from the back panel 4; this is shown in fig. 1C.

[0034] The front panel 3 and the back panel 4 have the same width 6 and the same length 7 and are connected along one side by the fold of the sheet 2, the fold thereby forming a first closed side 8. The front panel 3 and the back panel 4 are further connected directly to form a second closed side 9 and a third closed side 10 by means of the adhesive material 12 provided in areas along the edges of the sheet 2. Thus, in total, the food packing 1 comprises three closed sides 8, 9, 10 and one open side 11.

[0035] In the embodiment illustrated in fig. 1, the length 7 of the front panel 3 is larger than the width 6 of the front panel 3, and the open side 11 is provided along the width 6 of the front panel 3, i.e. along a smaller side of the food packing 1.

[0036] Preferably, the front panel 3 and the back panel 4 each has a length 7 between 12-20 cm, preferably between 15-18 cm; and a width 6 between 6-10 cm, preferably between 7-9 cm.

[0037] In the embodiment in figure 1, the flap 5 is rectangular having the same width 6 as the front panel 3 and the back panel 4 and having a length 18 which is smaller than the length 7 of the front panel 3 and the back panel 4. In fig. 1, the length 18 of the flap 5 is approximately ¼ of the length of the front panel 3 and the back panel 4.

[0038] The flap 5 is provided with adhesive material 12 preferably covered by a releasable liner 16 as shown in figs. 1A-1C. This liner has to be removed before use to expose the adhesive material as shown in fig. 1D. The adhesive material 12 on the flap 5 of the embodiment in figure 1 is provided in a straight line along an edge of the flap 5, extending along the width of the flap 5.

[0039] The food packing 1 is configured for receiving a food product through the open side 11. The open side 11 can be releasably closed by removing the releasable liner 16 from the flap 5, as shown in fig. 1D, and folding the flap 5 over the open side 11, fastening it onto the front panel 3 by means of the adhesive material 12 as shown in fig. 1E.

[0040] The food package 1 is specifically designed for temporary storage of bread with a topping, preferably a rectangular piece of bread. Thus, the shape of the food packing 1 is preferably rectangular. However, it can also be used for storage of other shapes of bread, such as round.

[0041] Reference is made to fig. 2, illustrating a second embodiment of a food packing 1 according to the present invention. The food packing 1 in fig. 2 is almost similar to the one shown in fig. 1. The only difference being that in the embodiment illustrated in fig. 2, the length 7 of the front panel 3 is smaller than the width 6 of the front panel 3, and the open side 11 is provided along the width 6 of the front panel 3, e.g. along a longer side of the food packing 1. In this embodiment, the front panel 3 and the back panel 4 each preferably has a width 6 between 12-20 cm, preferably between 15-18 cm; and a length 7 between 6-10 cm, preferably between 7-9 cm.

[0042] The closable food packings 1 illustrated in figs. 1 and 2 are the simplest embodiments of the present invention. In the embodiments illustrated in fig. 1 and fig. 2, the food packings 1 have a length and a width but no height. Figs. 3 and 4 illustrate two embodiments of the present invention, wherein the food packing 1 further has a height 17 provided by side panels 13a, 13b and/or a bottom panel 15.

[0043] Reference is made to fig. 3, illustrating a third embodiment of the present invention, wherein the food packing 1 further has a height 17 tapering from the open side 11 to the first closed side 8.

[0044] The food packing 1 illustrated in fig. 3 is made from a sheet 2 having a predefined shape comprising two trapezes and a square, provided with adhesive material 12 at pre-determined areas at the edges of the sheet 2; see fig. 3C. The sheet 2 is folded once along its width to obtain a rectangular front panel 3 and a rectangular back panel 4, wherefrom two triangular side panels 13a, 13b extend, such that the front panel 3 together with two triangular side panels 13a comprise one trapeze of the sheet 2, and the back panel 4 together with two triangular side panels 13b comprise the other trapeze of the sheet 2. The flap 5 comprises the square of the sheet 2.

[0045] The front panel 3 and the back panel 4 are connected indirectly by means of the two symmetrical triangular side panels 13a extending from each side of the front panel 3, and two symmetrical triangular side panels 13b, extending from each side of the back panel 4. The triangular side panels 13a of the front panel 3 and the triangular side panels 13b of the back panel 4 overlap each other and are adhered to each other at part of the overlap by means of adhesive material 12 provided on the sheet 2. The overlapping side panels 13a, 13b form a second closed side 9 and a third closed side 10, giving the food package 1 a height 17 tapering from the open side 11 to the first closed side 8.

[0046] The side panels 13a of the front panel 3 have a length which is the same as the length 7 of the front panel 3, but with a width 20 which varies along the length 7 of the front panel 3. The varying width 20 of the side panels 13a result in a varying height 17 of the folded food packing 1 from the open side 11 to the first closed side 8. In the same way, the side panels 13b of the back panel 4 have a length which is the same as the length of the back panel 4, but a width which varies along the length of the back panel 4.

[0047] The side panels 13a, 13b each comprises a folding line 22, around which the side panels 13a, 13b can be either folded to obtain a flat food packing 1a with no height, as shown in fig. 3A, or to obtain an expanded food packing 1b with a height 17 as shown in fig. 3B. This is advantageous as a bunch of food packings 1 can be stored on top of each other in a flat configuration without disturbing their shape or taking up too much space. Furthermore, when in an expanded configuration, a food packing 1 with a height 17 can hold a larger food product than a food packing 1 with no height 17.

[0048] Reference is made to fig. 4, illustrating a fourth embodiments of the present invention, where the food packing 1 have a height 17 being substantially constant from the open side 11 to the first closed side 8.

[0049] The food packing 1 illustrated in fig. 4 is made from a single rectangular sheet 2 of material provided with adhesive material 12 at pre-determined areas at the edges of the sheet 2 as shown in fig. 4B. The sheet 2 is cut at each side, such that the sheet 2 can be folded twice along its width to obtain a rectangular front panel 3, a rectangular bottom panel 15, a rectangular back panel 4, four rectangular side panels 13a, 13b and a rectangular flap 5 extending from the back panel 4; see fig. 4C. The two rectangular side panels 13b of the back panel 4 extend beyond the length of the back panel and is only separated from the bottom panel and the rectangular side panels 13b on the front panel 3 by the cutting provided in the sheet 2.

[0050] The sheet 2 is folded twice along its width to form the bottom panel 15 between the front panel 3 and the back panel 4, such that the front panel 3 and the back panel 4 are connected indirectly through the bottom panel 15, to form the first closed side 8.

[0051] The front panel 3 and the back panel 4 are further connected indirectly by means of two symmetrical rectangular side panels 13a extending from each side of the front panel 3, and two symmetrical rectangular side panels 13b, extending from each side of the back panel 4. The rectangular side panels 13a of the front panel 3 and a rectangular side panels 13b of the back panel 4 overlap each other and are adhered to each other at part of the overlap by means of adhesive material 12 to form a closed side with a height, being the same from the first closed side 8 to the open side 11. Furthermore, part of the side panels 13b of the back panel 4, is folded such that they overlap with the bottom panel 15. Adhesive material 12 may be added on the bottom panel 15, to adhere the side panels 13b of the back panel 4 to the bottom panel 15.

[0052] The side panels 13a, 13b and the bottom panel 15 also comprise folding lines 22, around which the side panels and the bottom panel 15 can be folded to obtain a flat food packing 1a as shown schematically in fig. 4A or straightened to obtain an expanded food packing 1b as shown schematically in fig. 4B.

[0053] The food packing 1 illustrated in fig. 4 further comprises a gripping tab 21, extending from the flap 5. The gripping tab 21 is configured for easy manually opening of the food packing 1 after it has been closed. Such a gripping tab 21 is suitable for all embodiments of the present invention.

[0054] Although the present invention has been described in connection with the specified embodiments, it should not be construed as being in any way limited to the presented examples. The scope of the present invention is set out by the accompanying claim set. In the context of the claims, the terms "comprising" or "comprises" do not exclude other possible elements or steps. In addition, the mentioning of references such as "a" or "an" etc. should not be construed as excluding a plurality. The use of reference signs in the claims with respect to elements indicated in the figures shall also not be construed as limiting the scope of the invention. Furthermore, individual features mentioned in different claims, may possibly be advantageously combined, and the mentioning of these features in different claims does not exclude that a combination of features is not possible and advantageous.

LIST OF REFERENCE SYMBOLS USED

[0055] 

1

food package

1a

flat food package

1b

expanded food package

2

sheet of paper

3

front panel

4

back panel

5

flap

6

width of front panel/back panel

7

length of front panel/back panel

8

first closed side

9

second closed side

10

third closed side

11

open side

12

adhesive material

13

side panels

13a

side panels extending from front panel

13b

side panels extending from back panel

14

-

15

Bottom panel

16

Removable slip

17

Height of food package formed by side panels and/or bottom panel

18

Length of flap

19

Length of bottom panel

20

Width of side panels

21

Gripping tab

22

Folding line

Claims

1. A closable food packing (1) for temporarily storing a food product, such as a sandwich or a piece of bread with a topping, the food packing (1) being made from a single folded sheet (2) of greaseproof and semi-transparent or transparent material, such as paper or paper-based material, the food packing (1) comprising:

- a square front panel (3), a square back panel (4), and a flap (5) obtained by folding the sheet (2) along its width, such that

∘ the front panel (3) and the back panel (4) have the same width (6) and the same length (7) and are connected along one side by the fold of the sheet (2) to form a first closed side (8);

∘ the sheet (2) extending from the back panel (4) and beyond the front panel (3) to create the flap (5), wherein the flap is provided with adhesive material (12);

- the front panel (3) and the back panel (4) are further connected directly or indirectly to form a second closed side (9) and a third closed side (10), such that the food packing (1) in total comprises three closed sides (8, 9, 10) and one open side (11),

wherein the food packing (1) is configured for receiving the food product through the open side (11), and the open side (11) is configured to be releasably closed by folding the flap (5) over the open side (11) and fastening it onto the front panel (3) by means of the adhesive material (12).

2. A food packing according to claim 1, wherein the front panel (3) and the back panel (4) are connected directly to form the second closed side (9) and the third closed side (10) by means of adhesive material (12) provided in areas along the edges of the sheet (2).

3. A food packing according to claim 1, wherein the front panel (3) and the back panel (4) are connected indirectly to form the second closed side (9) and the third closed side (10) by means of two symmetrical triangular side panels (13a) extending from each side of the front panel (3), and two symmetrical triangular side panels (13b), extending from each side of the back panel (4), wherein a triangular side panel (13a) of the front panel (3) and a triangular side panel (13b) of the back panel (4) overlap each other and are adhered to each other at part of the overlap by means of adhesive material (12) to form a closed side with a height (17) tapering from the open side (11) to the first closed side (8).

4. A food packing according to claim 1, wherein the sheet (2) is folded along its width at least twice, to form a bottom panel (15) between the front panel (3) and the back panel (4), such that the front panel (3) and the back panel (4) are connected indirectly through the bottom panel (15), to form the first closed side (8) having a height,
wherein the front panel (3) and the back panel (4) are further connected indirectly to form the second closed side (9) and the third closed side (10) by means of two symmetrical rectangular side panels (13a) extending from each side of the front panel (3) and two symmetrical rectangular side panels (13b) extending from each side of the back panel (4), wherein a rectangular side panel (13a) of the front panel (3) and a rectangular side panel (13b) of the back panel (4) overlap each other and are adhered to each other at part of the overlap by means of adhesive material (12) to form a closed side with a height (17) being the same from the first closed side (8) to the open side (11).

5. A food packing (1) according to any of claims 1-4, wherein the front panel (3) and the back panel (4) each have

- a length (7) between 12-20 cm, preferably between 15-18 cm; and

- a width (6) between 6-10 cm, preferably between 7-9 cm.

6. A food packing (1) according to any of claims 1-5, wherein the front panel (3) and the back panel (4) each have

- a width (6) between 12-20 cm, preferably between 15-18 cm; and

- a length (7) between 6-10 cm, preferably between 7-9 cm.

7. A food packing (1) according to any of claims 3 or 5-6, wherein the side panels (13a, 13b) have a length which is the same as the front panel (3) and the back panel (4), and a width (20) which varies between 0-3 cm, preferably between 0-2 cm, resulting in a height (17) of the food packing (1) between 0-3 cm.

8. A food packing (1) according to any of claims 4-6, wherein the height (17) of the side panels (13a, 13b) and/or the bottom panel (15) are substantially the same.

9. A food packing (1) according to any of claims 1-8, wherein the flap (5) is rectangular having the same width (6) as the front panel (3) and the back panel (4) and having a length (18) which is smaller than the length of the front panel (3), preferably less than half the length of the front panel (3).

10. A food packing (1) according to any of claims 1-9, wherein the adhesive material (12) on the flap (5) is provided in a straight line or area along an edge of the flap (5) extending along the width of the flap (5).

11. A food packing (1) according to any of claims 1-10, wherein the adhesive material (12) on the flap (5) is covered by a release liner (16) until use.

12. A food packing (1) according to any of claims 1-11, wherein the food packing (1) further comprises a gripping tab (21) extending from the flap (5) and configured for gripping when manually opening of the food packing after it has been closed.

13. A food packing (1) according to any of claims 3-12, wherein the side panels (13a, 13b) and/or the bottom panel (15) comprise a folding line (22) around which the side panels and/or the bottom panel (15) can be either

- folded around the folding line (22) to obtain a flat food packing (1a) or

- straightened around the folding line (22) to obtain an expanded food packing (1b).

14. A food packing according to any of claims 1-13, wherein the sheet (2) is made from a material having a plasticity allowing the paper (2) to be folded and to keep a folded shape after being folded.

15. A method for making a closable food packing (1) according to any of claims 1-14, wherein the food packing (1) is made by the following steps:

- cutting a sheet (2) in a pre-selected shape;

- adding adhesive material (12) at pre-determined areas of the sheet (2), wherein the adhesive material (12) is added to

∘ the edges of the sheet (2) constituting the front panel (3) and/or the back panel (4) of the food packing (1), or

∘ the edges of the sheet (2) constituting the side panels (13a, 13b) of the front panel (3) and/or the back panel (4); and

∘ to part of the sheet (2) constituting the flap (5) of the food packing (1);

- covering the adhesive material (12) on the flap by a releasable liner (16);

- folding the sheet (2) at least once along its width to obtain a food packing with three closed sides (8, 9, 10) and one open side (11).

Drawing