PACKAGING MADE OF CELLULOSE MATERIAL AND OPENING METHOD

Abstract

Disclosed is a packaging for piece goods having a folded shell made of cellulose-containing flat material. The shell and a cover enclose an interior of the packaging. The shell has a first side wall, on which a first sealing rim is angled outwardly away from the interior along a first fold edge. The cover is glued to the first sealing rim. The packaging has a perforation for tearing off the first sealing rim together with the portion of the cover glued to it from the first side wall on the first fold edge. Also disclosed is a method for opening a packaging which also has a second side wall, on which a second sealing rim is angled outwardly away from the interior along a second fold edge, with the cover being glued to the first sealing rim and to the second sealing rim.

Claims

1. A packaging, comprising: a folded shell made of cellulose-containing flat material and a cover; wherein the shell and the cover enclose an interior of the packaging; wherein the shell has a first side wall on which a first sealing rim is angled outwardly away from the interior along a first fold edge; wherein the cover is glued to the first sealing rim; wherein a perforation configured for the joint tearing of the first sealing rim and a portion of the cover glued to it from the first side wall is formed on the first fold edge; wherein the shell has a second side wall on which a second sealing rim is angled outwardly away from the interior along a second fold edge; and wherein the cover is glued to the second sealing rim in such a way that a strength of the bonding of the cover to the second sealing rim is greater than a strength of the material of the cover and/or the shell.

2. The packaging according to claim 1, wherein the perforation is formed with perforation openings which completely penetrate the flat material of the shell.

3. The packaging according to claim 1, wherein the perforation is formed with indentations in the flat material of the shell, wherein a remaining thickness of the flat material at the indentations is further reduced as compared to the first fold edge.

4. The packaging according to claim 1, wherein the perforation on the first fold edge extends over the entire length of the first fold edge.

5. The packaging according to claim 1, wherein a base element of the cover consists of cellulose-containing flat material.

6. The packaging according to claim 1, wherein a further perforation is formed on the second fold edge for tearing off the second sealing rim together with a portion of the cover glued to it from the second side wall.

7. The packaging according to claim 1, wherein the cover and/or the shell have at least one viewing window which is closed by a transparent closure element.

8. The packaging according to claim 1, wherein a hanging recess breaks through the first sealing rim and the portion of the cover glued to it.

9. The packaging according to claim 1, wherein an insert for fixing an object which can be received in the packaging is arranged in the shell.

10. A bundle comprising the packaging according to claim 1 and an object which is received in the packaging.

11. A method for opening a packaging, the method comprising the steps of: a) providing the packaging which has a shell folded from cellulose-containing flat material and a cover, wherein the shell and the cover enclose an interior of the packaging, wherein the shell has a first side wall on which a first sealing rim is angled outwardly away from the interior along a first fold edge, wherein the shell has a second side wall on which a second sealing rim is angled outwardly away from the interior along a second fold edge, and wherein the cover is glued to the first sealing rim and to the second sealing rim, wherein a perforation is formed on the first fold edge; b) joint tearing the first sealing rim with a portion of the cover glued to it from the first side wall along the perforation on the first fold edge; and c) pulling off the cover from the second sealing rim.

12. The method according to claim 11, wherein the shell and/or the cover contain fibers, in particular cellulose fibers, which are torn in step c).

13. A method for providing an object, comprising the steps of: A) providing a blank made of cellulose-containing flat material and a cover; B) creating a first fold edge with a perforation in the blank, wherein the first fold edge delimits a first side wall from a first sealing rim, and a second fold edge in the blank, wherein the second fold edge delimits a second side wall from a second sealing rim; C) folding a shell from the blank; D) inserting the object into the shell; E) gluing the cover to the first and the second sealing rim of the shell; F) opening the packaging by, in a step a), tearing off the first sealing rim together with the portion of the cover glued to it along the perforation on the first fold edge from the first side wall and, in a step b), pulling off the cover from the second sealing rim.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The invention is illustrated in the drawing and is explained in more detail using example. In which:

[0049] FIG. 1 shows a bundle according to the invention with a packaging according to the invention, in which an object is received, the packaging being partially opened, in a schematic perspective view from the side of a cover of the packaging;

[0050] FIG. 2 shows the packaging of the bundle of FIG. 1 in a closed state, in a schematic perspective view from the side of a shell of the packaging;

[0051] FIG. 3 shows the packaging of FIG. 2 during the tearing of a first sealing rim and a portion of the cover glued to it from a first side wall of the shell, in a schematic perspective view;

[0052] FIG. 4 shows the packaging of FIG. 2 during the removal of the cover from second sealing rims, in a schematic perspective view;

[0053] FIG. 5 shows a schematic sectional view along a first fold edge of a packaging according to the invention, wherein the first fold edge has a perforation with through-going perforation openings;

[0054] FIG. 6 shows a schematic sectional view along a first fold edge of a packaging according to the invention, wherein the first fold edge has a perforation with non-through-going indentations;

[0055] FIG. 7 shows a schematic flowchart of a method according to the invention for opening a packaging; and

[0056] FIG. 8 shows a schematic flowchart of a method according to the invention for providing an object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0057] FIG. 1 shows a packaging 10. In the configuration shown in FIG. 1, the packaging is in a partially opened state. An object 12 is received in the packaging 10. The packaging 10 and the object 12 together form a bundle 14. The object 12 is represented here symbolically as an approximately cylindrical body.

[0058] The packaging 10 includes a shell 16 and a cover 18. The shell 16 is folded from a cellulose-containing flat material such as paper or cardboard. The cover 18 has a base element 20, which here also consists of cellulose-containing flat material, for example paper or cardboard. Two viewing windows 22 are formed in the base element 20. The viewing windows 22 may be closed by a transparent closure element that is not shown in detail. The closure element may consist of a transparent flat material, for example bio-based film.

[0059] The shell 16 and the cover 18 together enclose an interior 24 of the packaging 10 (in the closed state of the packaging 10). The object 12 is arranged in the interior 24. Furthermore, an insert 26 for fixing the object 12 may be provided in the interior 24.

[0060] FIG. 2 shows the packaging 10 in a perspective view looking towards the shell 16. In FIG. 2, the packaging 10 is shown in the closed state.

[0061] The shell 16 is substantially cuboid here. The shell 16 has a base 28. A first side wall 30, two second side walls 32 and a third side wall 34 (hidden in FIG. 2) are formed adjacent to the base 28. The side walls 30, 32, 34 are each separated from the base 28 by a fold line 35 or are angled at the fold line 35 relative to the base 28, here by 90° in each case.

[0062] The shell 16 has a first sealing rim 36. The first sealing rim 36 is angled relative to the first side wall 30 along a first fold edge 38. The first sealing rim 36 protrudes outwardly from the interior 24 away from the first side wall 30.

[0063] The shell 16 has two second sealing rims 40, one of which is hidden in FIG. 2. The two second sealing rims 40 are each angled relative to the respectively associated second side wall 32 along a second fold edge 42. The two second sealing rims 40 each protrude outwardly from the interior 24 and away from the second side walls 32.

[0064] The shell 16 may have a third sealing rim (hidden in FIG. 2). The third sealing rim is angled relative to the third side wall 34 along a third fold edge (also hidden). The third sealing rim projects outwardly from the interior space 24 away from the third side wall 34.

[0065] The cover 18 is glued to the first sealing rim 36, the two second sealing rims 40 and the third sealing rim. The bond can in each case be implemented as a heat seal. The bonding is typically over the entire surface, in particular over the entire surface of the sealing rims 36, 40 facing the cover 18. A peel strength of the bond may exceed a corresponding strength of the shell 16 and cover 18 materials.

[0066] A perforation 44 is formed on the first fold edge 38. The perforation 44 extends here over the entire length of the first fold edge 38. In other words, the cellulose-containing flat material from which the shell 16 is folded is perforated along the first fold edge 38. The first fold edge 38 and the perforation 44 may have been introduced into the flat material in a common work step.

[0067] The perforation 44 can be formed with through-going perforation openings 46, see FIG. 5. The perforation openings 46 completely penetrate the flat material of the shell 16. Webs 48 remain between the perforation openings 46. A height H1 of the webs 48 can be reduced compared to a thickness D1 of the flat material of the shell 16 by embossing the first fold edge 38.

[0068] Alternatively, the perforation 44 can be formed with indentations 50, see FIG. 6. Elevations 52 are formed between the indentations 50. A remaining thickness D2 of the flat material in the region of the indentations 50 is reduced compared to a thickness D3 of the flat material in the region of the elevations 52. The thickness D3 can correspond to a maximum thickness of the first fold edge 38. The thickness D3 is generally smaller than a thickness D1 of the flat material of the shell 16 beyond the fold edge 38.

[0069] A further perforation can also be formed, at least in portions, along the second fold edge(s) 42 (not shown in more detail). The further perforation can be formed in particular at the end of the second fold edge(s) 42 close to the first fold edge 38. The further perforation can be designed with through-going perforation openings 46 or with indentations 50; in this respect, reference is made to the above description.

[0070] The packaging 10 can have a hanging recess 54. The hanging recess 54 breaks through the first sealing rim 36 and the cover 18 in the region where they are glued. Consequently, the hanging recess 54 is bordered here by two layers.

[0071] To open the packaging 10, in a first step 102, see FIG. 7, the first sealing rim 36 is torn off from the first side wall 30 together with the portion of the cover 18 glued to it. For this purpose, the first sealing rim 36 and the portion of the cover 18 glued to it can be moved away from the shell 16 in the direction of the arrow 56, cf. FIG. 3. Typically, for this purpose, the first sealing rim 36 and the cover 18 are held clamped between the fingers of one hand (not shown).

[0072] A partially torn-off state of the packaging 10 is shown in FIG. 3. A region of the first fold edge 38 on the right in FIG. 3 was torn along the perforation 44, whereas a part of the first fold edge 38 on the left in FIG. 3 is still intact. In other words, in this left part of the first fold edge 38 there is still a continuous material connection between the first sealing rim 38 and the first side wall 30 by means of the flat material of the shell 16.

[0073] To open the packaging 10 further, in a step 104, see FIG. 7, the cover 18 is pulled off the two second sealing rims 40, see FIG. 4. For this purpose, the movement of the first sealing rim 36 in the direction of the arrow 56 according to FIG. 3 may be maintained or deflected instead in its direction away from the shell 16.

[0074] When the cover 18 is pulled away from the second sealing rims 40, cellulose-containing fibers (not shown in detail) of the cover 18 and/or the shell 16 can be torn. This tearing of cellulose fibers can be favored by the fact that the (peeling) strength of the bond between the cover 18 and the shell 16 is greater than a corresponding strength of the material of the shell 16 or the cover 18. Due to the tearing of the cellulose fibers, parts of the torn cellulose fibers from the second sealing rims 40 can remain on the cover 18 in regions 58 of the original bonding of the second sealing rims 40 to the cover 18. Correspondingly, parts of the torn cellulose-containing fibers from the cover 18 can also remain on the second sealing rims 40.

[0075] FIG. 8 shows a flowchart of a method 200 for providing an object 12, see FIG. 1. The provision method 200 is explained below using the example of the packaging 10 or the bundle 14 described above.

[0076] First, in steps 202 and 204, a blank of cellulose-containing flat material and a cover 18 are provided. A shell 16 is obtained from the blank in the course of the method 200. For this purpose, in steps 206 and 208, a first fold edge 38 with a perforation 44 and a second fold edge 42 are introduced into the blank. The first fold edge 38 delimits a first side wall 30 of the shell 16 being formed from a first sealing rim 36. The second fold edge 42 correspondingly delimits a second side wall 32 of the shell 16 being formed from a second sealing rim 40. Typically, a further second fold edge 42 is also introduced into the blank in the step 208, which delimits a further second side wall 32 of the shell 16 being formed from a further second sealing rim 40. Correspondingly, a third fold edge can also be introduced into the blank in the step 208, which delimits a third side wall of the shell 16 being formed from a third sealing rim. The blank can then be folded in a step 210 so that the shell 16 is obtained.

[0077] In an optional step 212 an insert 26 can be inserted into the shell 16. In a step 214 an object 12 is placed in the shell 16. Alternatively, the insert 26 or another, additional insert (not shown) can also be inserted into the shell 16 in the step 214 after the object 12 has been inserted.

[0078] After inserting the object 12 and possibly all inserts 26, in a step 216 the cover 18 is glued to the first sealing rim 36, the second sealing rim 40 or the second sealing rims 40 and optionally the third sealing rim. As a result, a closed packaging 10 or a bundle 14 having a closed packaging 10 in which the object 12 is arranged is obtained.

[0079] The packaging 10 is then opened by means of a method 100 described above, see FIG. 7. Then, in a step 218, the object 12 can be removed from the opened packaging 10 or its shell 16. The object 12 can now be put to further use.

[0080] In summary, the invention relates to packaging 10, in particular for piece goods, comprising a folded shell 16 made of cellulose-containing flat material and a cover 18, wherein the shell 16 and the cover 18 enclose an interior 24 of the packaging 10, wherein the shell 16 has a first side wall 30, on which a first sealing rim 36 is angled outwardly away from the interior 24 along a first fold edge 38, and wherein the cover 18 is glued to the first sealing rim 36, which is characterized in that a perforation 44 for tearing off the first sealing rim 36 together with the portion of the cover 18 glued to it from the first side wall 30 is formed on the first fold edge 38. The invention also relates to a bundle 14 with such a packaging 10 and having an object 12 which is received in the packaging 10. Furthermore, the invention relates to a method 100 for opening a package 10, which also has a second side wall 32, on which a second sealing rim 40 is angled outwardly away from the interior 24 along a second fold edge 42, with the cover 18 being glued to the first sealing rim 36 and to the second sealing rim 40, comprising the steps:

a) tearing off 102 the first sealing rim 36 together with the portion of the cover 18 glued to it from the first side wall 30 along the perforation 44 on the first fold edge 38;
b) pulling off 104 the cover 18 from the second sealing rim 40.

LIST OF REFERENCE SIGNS

[0081] packaging 10 [0082] object 12 [0083] bundle 14 [0084] shell 16 [0085] cover 18 [0086] base element 20 [0087] viewing window 22 [0088] interior 24 [0089] insert 26 [0090] base 28 [0091] first side wall 30 [0092] second side wall 32 [0093] third side wall 34 [0094] fold line 35 [0095] first sealing rim 36 [0096] first fold edge 38 [0097] second sealing rim 40 [0098] second fold edge 42 [0099] perforation 44 [0100] perforation openings 46 [0101] webs 48 [0102] indentations 50 [0103] elevations 52 [0104] hanging recess 54 [0105] arrow direction 56 [0106] regions 58 [0107] height H1 of the webs [0108] thickness D1 of the flat material of the shell 16 [0109] remaining thickness D2 of the flat material in the region of the indentations 50 [0110] thickness D3 of the flat material in the region of the elevations 52 [0111] opening procedure 100 [0112] joint tearing 102 [0113] pulling off 104 the cover 18 [0114] provisioning procedure 200 [0115] providing 202 a blank [0116] providing 204 a cover 18 [0117] creating 206 a first fold edge 38 [0118] creating 208 a second fold edge 42 [0119] folding 210 [0120] inserting 212 an insert 26 [0121] inserting 214 an object 12 [0122] gluing 216 [0123] removing 218 the object 12