EP2390196A1 - Opening device for a blank - Google Patents

Abstract

The tearing system is designed to extend towards a progress direction over a specific length and perpendicular to the progress direction over a specific width. The tearing system tears a blank (10) along a tearing line, and has two cutting lines (18,20). The former cutting line scratches an outer layer (14) of a blank, where the latter cutting line scratches an inner layer (16) of the blank. An independent claim is also included for a cardboard box made of foldable material, such as corrugated cardboard.

Description

Field of the invention

The present invention relates to a ripping device for a blank. Such a blank may for example consist of a semi-rigid material, such as corrugated cardboard. In a further aspect, the invention also relates to a product of such a blank, for example a cardboard.

Background of the invention

Packaging in any form, as opposed to the products that package it, is a mass-produced product. Consequently, there are numerous efforts to develop packaging. This is done regularly in an effort to optimize their economic and ecological production, their economic transport and their stability and ease of use.

The European patent address EP 0 571 197 B1 discloses a ripper for corrugated board packaging. The invention also relates to a container. This can be made of double-sided corrugated board, that is a corrugated board with two smooth layers and a corrugated intermediate layer. For the purposes of the invention, a separate tear strip is provided. For the tear tape a first weakening line is provided. In addition, a second weakening line is still provided, which is intended to cooperate with a second edge of the band. At the end of the band, a special initial tab is formed on which the band can be grasped. The invention is aimed to exploit the cutting action of the edges of the tear strip. The weakening lines are intended to provide smoother cut edges.

The British patent GB 777,079 also relates to a container which can be made of a corrugated board material. Again, a tape is used, which in this case is adhesively bonded to the inside of the walls of the box. Also, various lines of weakness are provided to allow the opening of the container through the belt.

Both documents follow similar paths. Special attention is paid to the creation of smooth edges. This may well be achieved satisfactorily, but in both cases a tear tape is needed. In the case of the British writing this is even sticking with the inside of the corrugated cardboard material to connect. Consequently, the tearing device can be produced only by the addition of a material other than the folding material band. This requires at least one additional step. Bonding even requires a further step and the use of another material, namely the adhesive material. These solutions thus have disadvantages for inexpensive mass production.

The patent DE 102 27 050 B3 also discloses a rip cord for corrugated board. The tear line is created by cutting through both cover papers completely. The wave paper should not be cut at all or only partly. The cuts in both ceiling layers should be exactly opposite each other. Although this solution may allow a good ripping, it is clearly being bought with a significant weakening of the material. Especially when two sections are exactly opposite each other, at least the buckling stability of the corrugated board is greatly reduced in this area.

The publication DE 44 28 185 A1 discloses an apparatus for making tear perforations. In another aspect of the invention, it is also a corrugated product. The perforation should consist of separation points and scribe lines. Particular attention is paid to the separation points. These are to be produced by pressing roof-like recesses into the corrugated cardboard material or embossed. The appropriate preparation of the corrugated material therefore requires a complex tool, which is presented as part of the invention. Furthermore, the roof-like recesses will in turn affect at least the buckling stability of the corrugated board in a significantly unfavorable manner.

The present invention desires to provide a convenient ripping device in a simple economic manner with machines commonly used in corrugated board processing. This should be inexpensive to produce in a mass process, not unduly weaken the material and produce a smooth clean tear line.

These advantages are achieved by a tearing device according to claim 1 and by a carton according to claim 10.

The invention thus relates to a tearing device. Such a device for a blank of folding material may comprise both the folding material complementary elements, as well as weakening points, which may arise by omitting folding material in certain areas. Additional elements are, for example, tear threads. Such a tear thread can also be provided in the context of the present invention, but it is not required. In the present invention, a first and a second line of weakness are central elements of the tearing device. These can be carried out, for example, by scratching and are also referred to below as the first and second scribe line. However, the process by which the Line of weakness or weaknesses are produced, but rather on the result of a selective weakening of the folding material.

The tearing device is suitable for all typical folding materials, ie in particular for flexible, for example semi-rigid, materials, which also include textile materials and plastic materials. Typical folding materials are paper and board materials. A particularly preferred material herein is corrugated board. Corrugated board typically consists of at least one intermediate layer which is corrugated. It also has one, but often two outer layers. A preferred folding material is a three-ply, which has a wavy intermediate layer which lies between a smooth outer layer and a smooth inner layer.

Another preferred folding material is a five-ply. This has an outer smooth layer, a first corrugated layer, a smooth intermediate layer, a second corrugated layer and an inner layer.

The outer layer and the inner layer need not differ in their properties. In an unfolded blank, the terms outer layer and inner layer therefore usually designate two identical layers. When the blank is transferred to a product, such as a carton, the term inner liner will of course always be used for the innerliner facing the product.

In the case of the preferred folding materials described here, however, the outer layer and the inner layer may also be made of different materials. In particular, when the outer layer is to be printed, it is considered that the outer layer is made of a smoother and / or heavier material than the inner layer. For example, the basis weight of an advantageous outer layer could be 180 g / m ² , while the basis weight of an inner layer or intermediate layer is only 125 or 140 g / m ² .

The term blank is to be understood in the context of this invention in a broader sense. It may be a sheet of folding material, which is therefore typically further processed. It may be a typical blank, which is contoured and obtained for example by punching. This is usually flat after punching, but can be transformed into a space-filling product by folding and erecting steps. However, the term blank is also intended to be used herein for such products resulting from the processing of blanks. For example, corrugated cardboard folding materials are typically packagings, such as cartons, or also goods displays.

The tearing device has a course direction, which is given by the course direction and the first and the second scribe line. If these lines should not be run in parallel once, it should be averaged. Along this course, the tearing device extends over a first length. Perpendicular to the direction of extension, it extends over a first width. Thus, the first width is generally simply the distance of the first scribe line from the second scribe line. The separation of different parts of the blank takes place after tearing along a tear line. According to the invention results in a smooth tear pattern, which can be well described by a line, but should arise once a slightly rough or jagged image, it is by averaging over a certain length to determine the tear line.

According to the invention, the first width is to be selected with consideration of the folded material thickness. Compared to the thickness of the folded material, the first score line and the second score line should be relatively close to each other. The distance may be, for example, 0.1 times or 0.25 times or 0.5 times, single, double or more of the pleated material thickness. However, this distance should be less than 10 times, preferably less than 7 times or 5 times or 3 times the thickness of the folded material. Particularly useful ranges for the first width are 0.25 times to 5 times the pleated sheet thickness, or 0.5 times to 1.5 times or 0.75 times to plain the pleated sheet thickness.

The tear line according to the invention runs along the first score line. According to the invention, the first scribe line comprises a scoring of the outer layer. It has been shown that it is sufficient if the first scribe carved only the outer layer. It is alternatively also considered that the first scribe is the outer layer and an adjacent intermediate layer. The first scratching can be a scratching that is continuous over the entire first length. Alternatively, the first score may also be a perforation. In particular, a perforation with few retaining webs and long cutting lines would be suitable. For example, a suitable pitch would be one in which the cut length is at least 70% or 80% or even 90% of the total first length.

According to the invention, the second scribe comprises a perforation of the inner layer. In one embodiment of the invention, only the inner layer is scratched by the second scribe even. Alternatively, it is also contemplated that the second score scratches the inner layer and at least one adjacent intermediate layer. Furthermore, it is also considered that the second score scratches the inner layer and all intermediate layers. Under scratches is in connection with this second scribe perforation to understand. Such a perforation thus produces cuts and holding webs in the scribing direction (sometimes also called breakpoints). It is expedient if the holding webs in the scribing direction occupy at least 10%, 20% or 30% or more of the scored stretch. The length of the holding webs can be adapted, for example, for a carton or a merchandiser to the required stability, in particular to the required stacking crush pressure or BCT value. In order to ensure easy tearing you will usually go but not far beyond these requirements.

It is also expedient to match the length of the holding webs in the direction of scribe on the Faltmaterialdicke. For example, the length may be about 50% to 200% of the pleated material thickness. A range of 80% to 120% has proven to be particularly advantageous. This results in holding webs of approximately square cross-section, holding webs thus their thickness (measured in the direction of Faltmaterialdicke) and their length (measured at the scribing) approximately equal to each other.

For example, if a three-ply corrugated cardboard (about 2 mm thick) is used, it is expedient for the second scribe line to provide cuts of 5 mm in length and holding webs of 1.5 mm in length. Furthermore, it is expedient for this Faltmaterialdicke to provide the first scribe line and the second Riztlinie at a distance of 1.5 mm.

If, for example, a three-ply corrugated cardboard (a so-called "B-wave" in technical jargon) is used, it is expedient for the second scribe line to provide cuts of 7 mm in length and retaining webs of 2 mm in length. Furthermore, it is expedient for this Faltmaterialdicke to provide the first scribe line and the second Riztlinie at a distance of 2 mm.

For example, if a five-ply corrugated cardboard of about 3 millimeters in thickness (consisting of a smooth, a corrugated, a smooth, a corrugated and a smooth sheet, in the jargon, a so-called "EE wave") is used in this order it is useful for the second scribe line to provide cuts of 7 mm in length and retaining webs of 2 mm in length. Furthermore, it is expedient for this Faltmaterialdicke to provide the first scribe line and the second Riztlinie at a distance of 2 mm. In an EE wave, the second scribe line can also score both wavy layers and the smooth interlayer.

Among the advantages of the tearing device according to the invention it is also important that not only a straight course can be selected. The course can be curved in many ways and in any case comprise at least one arc. Thus, it is possible to tear along a contour and accordingly to obtain a contoured tear line comprising at least one arc.

According to the present invention, there is also provided a carton of a folding material comprising a tearing device in the manner described and claimed herein. In such a carton, at least one sidewall may comprise a tearing device. It is advantageous if all side walls or at least two or three adjacent side walls have a circumferential tearing device. In a tearing device, which rotates about three side walls, it is possible to produce by tearing a lid, which is held by the other, usually fourth side wall, and thus (supported by this) can be opened. If a revolving around all four side walls ripping device is provided, even the complete removal of the lid is possible. It is also useful if a recess is provided adjacent to the tearing device. It is particularly advantageous if a recess adjacent to the first score. Such a recess may be advantageously designed as engagement hatch for a finger, for example, circular or semicircular. Such a recess then makes it possible to exert pressure on the inner layer of the folding material with at least one finger and thereby initiate the tearing.

Another inventive carton has a lid and a closure flap connected to the lid. The carton also has at least one wall section. In this case, then, the locking tab have the tearing device. The locking tab can in appropriate Way are connected to the at least one wall portion of the carton. For this purpose, for example, an adhesive compound into consideration. But there is a plug connection into consideration. Plug connections can also be durable, for example due to entanglements. By such a connection, the locking tab with a part of the carton, preferably a wall portion, are connected. The tear line then allows the release of the locking tab of the wall portion without having to solve the original connection with the wall portion. Therefore, this compound can be stable and durable. The tearing of the closure tab along the tear line of the tearing device then allows the carton to be opened.

Advantageously, the tearing device can be arranged so that the closure tab is divided into a first section and a second section. To close the carton, the first section of the closure flap can then be permanently connected to a wall section. To open the box, the first section can be separated from the second section. The severed second portion may continue to remain connected to the lid. After separating the second section but the box can be opened.

In an advantageous embodiment, a finger recess adjacent to the tear line of the tearing device. It is particularly contemplated that the tearing device runs along a V-shaped line. It is particularly advantageous if the finger recess adjoins the vertex of the V-shaped line.

Fig. 1

einen Ausschnitt eines Zuschnitt, welcher einen erfindungsgemäßen Aufreißmechanismus aufweist, in der Aufsicht auf die Außenseite;

Fig. 2

den Ausschnitt eines Zuschnitts auf Fig. 1 in der Aufsicht auf die Innenseite;

Fig. 3

denselben Zuschnitt im Querschnitt entlang der Linie III - III der Fig. 2;

Fig. 4

denselben Zuschnitt im Querschnitt entlang der Linie IV - IV der Fig. 2;

Fig. 5

eine schematisch etwas vereinfachte perspektivische Ansicht eines Kartons aus einem Zuschnitt, welcher einen erfindungsgemäßen Aufreißvorrichtung aufweist;

Fig. 6

einen Zuschnitt für einen Karton wie in Fig. 5 gezeigt;

Fig. 7

einen anderen Karton, welcher eine erfindungsgemäßen Aufreißvorrichtung aufweist. Dargestellt ist der Karton vor seinem versenderseitigem Verschließen;

Fig. 8

den Karton der Fig. 7 in versandfertig verschlossenem Zustand;

Fig. 9

den Karton der Fig. 7 nach dem Öffnen durch den Empfänger.

Other features, but also advantages of the invention will become apparent from the following drawings and the accompanying description. In the figures and in the accompanying descriptions, features of the invention are described in combination. However, these features can also be used in other combinations of one inventive subject matter. Each disclosed feature is thus also to be regarded as disclosed in technically meaningful combinations with other features. In the pictures show:

Fig. 1

a section of a blank, which has a tearing mechanism according to the invention, in the plan view of the outside;

Fig. 2

the cutout of a blank Fig. 1 in the supervision on the inside;

Fig. 3

the same cut in the cross section along the line III - III Fig. 2 ;

Fig. 4

the same blank in cross-section along the line IV - IV of Fig. 2 ;

Fig. 5

a slightly simplified perspective view of a carton from a blank, which has a tearing device according to the invention;

Fig. 6

a blank for a box as in Fig. 5 shown;

Fig. 7

another carton, which has a tearing device according to the invention. The carton is shown before its sender-side closing;

Fig. 8

the box of Fig. 7 in ready for shipment closed condition;

Fig. 9

the box of Fig. 7 after opening by the receiver.

Fig. 1 shows a section of a blank 10, which has as an essential element, an inventive tearing device 12. As a rule, as far as the blank 10 extends beyond the section shown, the tearing device 12 also extends beyond this cutout. Fig. 1 shows a plan view of the outside of the blank. Fig. 1 is related to Fig. 2 . 3 and 4 which, when taken together, allow a better understanding of the tearing device as a whole. Fig. 2 shows a view of the inside and the 3 and 4 show two cross sections.

In the Fig. 1 Now you can see the outer layer 14 of the blank 10. In the outer layer, the first score line 18 can be seen. This scores the blank from the outside, it represents a continuous scribe. The first score line 18 extends relative to the blank 10 in a position which is indicated by two arrow marks and designated P1. In Fig. 1 Also marked is another position P2. There runs the second score line 20, but which can be seen only in the following views.

Fig. 2 shows now a plan view of the inner layer 16. There recognizes in the position P2 the course of the second score line 20. This is designed as a perforation and accordingly has a plurality of web pieces or retaining webs 22. Since the first scribe line 18 does not scratch the inner layer 16, this is in Fig. 2 not visible. Their position is, however, marked by two simple arrows and the reference P1. The more accurate position of the first score line 18 and the second score line 20 to each other can be seen in the cross sections, which are shown below.

Fig. 3 shows a cross section along the line III-III. The folding material assumes a folded material thickness D in this cross section. The folding material for the Blank 10 consists of an outer layer 14 and an inner layer 16. These include an intermediate layer 24 a. This is executed wavy. The illustrated folding material can therefore be thought of as a typical three-ply corrugated board. At the level of the position P1, a first scoring line is introduced into the outer layer. In the position P1 shown, a trough runs behind the scribe line. In such a case, the first score line 18 would typically not score the liner 24. It is even preferred within the scope of this invention that the first score line 18 be positioned relative to the corrugations of the spacer 24 so as not to be scribed. The first scoring line 18 is preferably positioned at the level of a wave trough (which appears in the scribing direction) of the intermediate layer 24. Alternatively, however, it is also considered that one takes the full or partial scratching of the liner 24 in purchasing.

Since the second score line 20 is provided as a perforation, which shows holding webs, and this cross section is guided in the cutting plane by a holding web, located in the position P2 no scratching of the outer layer 14, inner layer 16 or the intermediate layer 24. Thus, the folding material also in the region of the tearing device 12 overall good stability.

Fig. 4 shows a cross section along the line IV - IV of Fig. 2 , In the amount of the position P1, the scratching is recognizable by the outer layer 14 again. In this cross-section, however, also recognizes the second score line, which scratches the inner layer 16 and the liner 24. It is advantageous if, in the context of this invention, the second score line goes somewhat deeper into the folding material and thus in particular into the intermediate layer 24 than the first score. It may also be advantageous to position the second score line 20 in such a way that it always strikes a wave peak of the intermediate layer 24 (appearing in the scribing direction). At low scratch depth is thus always achieved a weakening or complete separation of the intermediate layer 24 in this way.

Fig. 5 shows a perspective view of a carton 30 from a blank. This perspective view is reproduced somewhat schematically here for reasons of simplification. One recognizes the lower part or receiving part 32 of the carton. For example, if the carton serves to deliver goods, they can be accommodated in receiving part 32. It can also be seen the lid part 34, which forms the top of the carton. Between the receiving part 32 and cover part 34 extends circumferentially on all (visible and non-visible) sides of the carton 30 a tearing 12. At the front of the carton this tearing device runs deeper than on the side panels. Further, a punched hole is provided centrally on the front, which creates an opening 36. Through this breakthrough 36 can easily be performed a finger. This can then exert pressure on the inner layer of the blank. As a result, the carton 30 is torn open along the tearing device 12. When the tearing device 12 rotates around the entire carton 30, it is thus possible to completely separate the lid part 34 from the receiving part 32. The cover part 34 can then be disposed of. What remains is the receiving part 32, which presents goods in an easily accessible manner. In this way, goods can be conveniently placed in a supermarket shelf.

Fig. 6 shows a blank 40 for a carton, as in Fig. 5 was shown as carton 30. The cut is related to Fig. 5 self-explanatory; Therefore, not all details, but only the essential parts were called. The blank consists essentially of wall parts 42 and tabs 44. The tabs 44 are taken and partially glued. Bonding is preferably provided in the hatched areas. The tabs can thus form the bottom and top of the carton 30. The wall parts 42 form the side walls. At this time, the areas 42A and 42B become the rear wall of the carton. The regions 42C and 42D form the sidewall of the carton. The areas 42F and 42G form the front wall of the carton and the Areas 42A and 421 form the other side wall of the carton. The carton bottom is formed by the tabs 44A, 44C, 44F and 44H. The carton top is formed by the tabs 44B, 44D, 44G and 441. These tabs are usually closed after loading the boxes with goods and usually glued.

In the wall part 42 of this relatively simple carton blank, a tearing device can now be guided in such a way that a very useful carton is produced. In this can then be easily separated for a receiving part and cover part and on the other hand can be generated by the leadership of the tear line a pleasing and useful designed receiving part. Unlike a tearing device, which comprises, for example, a tear strip, the contour can be guided very freely in the tearing device according to the invention. For example, tight bows are possible. This has both functional and aesthetic benefits.

In the present case, the straight guide tearing device 12 between the wall parts 42A and 42B results in a smooth tear line in the rear wall. Between the wall parts 42C and 42D, the tear line is then guided obliquely, so that after the tearing of the carton 30, a rising side edge of the receiving part 32 results. A particularly curved guide results between the areas 42F and 42G. As a result of this guide, only one front wall 42F of low height remains on the front side of the cardboard box in the receiving part 32. At the front of the carton, however, in addition to the vertical edges supporting wall elements remain. In the area between the wall parts 42A and 421, the tearing device 12 is again guided obliquely. The corresponding tear line thereby defines a slight increase in the left side wall to the rear.

Fig. 7 shows another carton, which makes use of the tearing mechanism according to the invention. The carton 50 has a receiving part 52 on. The receiving part 52 is here designed in a typical manner rectangular, but it depends on the shape in detail not. The receiving part 52 has a wall portion 54 which occupies a substantial part of the front wall in the illustrated carton. The carton also has a lid 56. The closure flap 58 adjoins the lid 56. This has a tearing device according to the invention, which is represented here by its tear line 64. At the tear line 64 is adjacent to a finger recess 66. The tear line 64 is V-shaped. The left leg of the tear line 64 represents its first portion 68 and the right leg represents its second portion 70. The finger recess 66 is at the apex of the V shape.

In Fig. 7 the carton is shown before its sender-side closing. The usually so filled cardboard can now be closed at its top by the lid 46. This is then held with the locking tab 58 on the wall portion 54. For this purpose, 62 bonds can be provided in the lower tab field. In question come about individual glue points or an adhesive surface, which is provided with Vorverschließen with a masking tape.

Fig. 8 shows the carton 50 in the closed state. The closure tab 58 is in total tight against the wall portion 54 and thus on the front wall. Because the tearing device can transmit tensile forces well, however, the fixation in the region of the lower plate field 52 is completely sufficient.

Fig. 9 shows the box after the receiver side opening. To open the box, the lower edge of the upper flap panel 60 can be conveniently understood in the region of the finger recess 66. By a slight pull a rupture of the tearing device along the tear line 64 can then be effected. Since the finger recesses 66 are placed centrally, a uniform rupture along the first portion 68 and the second Section 70 done from the finger recess 66 forth to the outside. The laterally extending from the Aufreißpunkt course of the tear line 64, so the slope of the first portion 68 and the second portion 70 to the outside facilitates the tearing. Since the tear-open mechanism is typically placed clearly in the front area of the carton, it is of particular aesthetic advantage that the tearing mechanism according to the invention ensures a particularly smooth tearing line.

The special arrangement of two scribe lines can be created in the manner described an effective ripping, which surprisingly works effectively without a scribe line and a Gegenritzlinie were performed at the same height. The weakening of the folding material in the amount of the actual tear line is contrary to all the usual procedure only a small. It takes place only by the first score line 18, which does not detect the inner layer and often even the intermediate layer 24 and does not even need to capture. The fact that the tearing device essentially makes do with weakening and without adding material makes it particularly economical.

In contrast to other tearing open devices, the tearing device according to the invention also has the advantage that a very clean tearing edge is produced, which can be predetermined precisely by the first truing. The tearing edge has only a small visible tearing depth. You do not look at a full cross section of the folding material, so for example on a corrugated edge. This is because the second score is positioned below the first score. As a result, the tear edge runs through the folded material obliquely to the rear and is therefore not clearly visible to a viewer looking at the outer layer.

Overall, it can be seen how inexpensive a convenient and suitable for mass production ripping can be produced, which is universally usable. This allows rupture of a clearly defined tear line and along even relatively narrow contours, but does not unduly weaken the fold material.

LIST OF REFERENCE NUMBERS

10

cut

12

ripping

14

Outside Location

16

inner layer

18

first scribe line

20

second score line

22

Retaining web of the perforation

24

liner

30

carton

32

receiving part

34

cover part

36

breakthrough

40

Blank for carton

42

wall parts

44

tabs

46

running direction

48

bow

50

carton

52

receiving part

54

wall section

56

cover

58

flap

60

upper flap field

62

lower flap field

64

Tear line (schematic)

66

finger recess

68

first section

70

second part

D

Faltmaterialdicke

Claims (15)

Tearing device (12) for a blank (10) made of folding material, which has a Faltmaterialdicke (D) and at least one outer layer (14) and an inner layer (16), wherein the tearing device (12) in the extending direction over a first length and perpendicular to Extends over a first width and the tearing device (12) serves for tearing along a tear line and comprises a first scribe line (18) and a second scribe line (20), characterized in that the first width is 0.25 times to 5 times the Faltmaterialdicke is the first score line (18) includes a scoring of the outer layer (14) and the second score line (20) comprises a perforation of the inner layer (16) and the tear line along the first score line (18). The tearing device (12) of claim 1, wherein the first score (18) scratches only the outer ply (14). A ripping device (12) as claimed in claim 1 or 2, wherein the first score (18) is a score passing through the first length. Tearing device (12) according to one of the preceding claims, wherein the second score (20) only the inner layer (16) scratches. A tearing device (12) according to any one of the preceding claims, wherein the second score (20) scratches the inner layer (16) and at least one adjacent intermediate layer (24). A tearing device according to any one of the preceding claims, wherein the first width is from 0.75 to 1.5 times the pleat material thickness (D). A tearing device (12) according to any one of the preceding claims, wherein the perforation comprised by the second score (20) comprises cuts and holding webs comprises and the length of the holding webs in the direction of 50% to 200% of the Faltmaterialdicke. Tearing device (12) according to one of the preceding claims, wherein the running direction comprises at least one sheet (48). A cardboard carton (10) comprising a tearing device (12) according to any one of the preceding claims. A carton according to claim 10, wherein at least one side wall comprises a tearing device (12). A carton as claimed in claim 11, wherein the tearing device (12) is circumferential and permits separation of the lid. A carton according to any one of the preceding claims, wherein the first score (18) is adjacent a recess (36). Cardboard according to claim 13, wherein this recess (36) is designed as a finger hatch. The carton (50) of claim 10 including a lid (56), a closure flap (58) connected to the lid, and a wall portion (54), the closure flap (58) comprising the ripper (12). The carton (50) of claim (14), wherein the tearing device (12) divides the closure tab (58) into a first portion (68) and a second portion (70), and the first portion closes the carton (50) with the wall portion (54) is permanently connectable and the tearing device (12) for opening the carton (50) allows the separation of the first portion (68) from the second portion (70).

Images