WO2017045837A1

WO2017045837A1 - Blank and method for producing an intermediate layer

Info

Publication number: WO2017045837A1
Application number: PCT/EP2016/068604
Authority: WO
Inventors: Georg Schulte
Original assignee: Sig Technology Ag
Priority date: 2015-09-15
Filing date: 2016-08-04
Publication date: 2017-03-23
Also published as: EP3350095A1; DE102015115504A1

Abstract

The invention relates to a blank (5) for producing an intermediate ayer (10), in particular a multi-layer intermediate layer, comprising: a main surface (6) with multiple recesses (9a, 9b), and at least one additional surface (7a, 7b) with multiple recesses (9a, 9b), wherein the at least one additional surface (7a, 7b) is connected to the main surface (6) along a folding line (8a, 8b). According to the invention, in order that multiple layers of packaging (2) with said applications (3) can be securely stacked on top of one another in a cost-effective manner, at least some recesses (9a, 9b) of the additional surface (7a, 7b) are arranged axisymmetric to at least some recesses (9a, 9b) of the main surface (6) in relation to the folding line (8a, 8b) between said additional surface (7a, 7b) and the main surface (6). The invention also relates to a method for producing a multi-layer intermediate layer (10) from a blank (5) of this type, and to a packaging system (13).

Description

Blank and method for producing an intermediate layer

The invention relates to a blank for producing an intermediate layer,

in particular a multi-layer intermediate layer, comprising: a main surface with a plurality of recesses, and at least one secondary surface with a plurality

Recesses, wherein the at least one side surface is connected along a fold line with the main surface.

The invention also relates to a method for producing a multilayered

Interlayer from a blank.

The invention further relates to a packaging system, comprising: a pallet for transporting and / or storing packaging, at least one layer of packaging with applications, and at least one multi-layer intermediate layer with recesses, wherein the intermediate layer is arranged on the position of the packaging.

In the field of packaging technology, a common challenge is to package multiple packages for transportation or storage purposes

summarize. This can be done, for example, that the

Packaging in several layers to be stacked on pallets. In order to increase the stability of the stacked packages, interlayers are often placed between the different layers of the packages. In particular, should be touched by the intermediate layers each packaging at the top and at the bottom and are secured against lateral slipping. In geometrically simple packaging - for example cuboid packaging - satisfactory results could be achieved with intermediate layers. The cost of such liners must be extremely low as they are used only once and usually do not justify a higher selling price of the packages stacked on them. Therefore, thin, single-layer paper or cardboard liners are often used.

For geometrically complex packaging, however, greater demands are placed on the intermediate layers. This is because such packages often do not provide a flat support surface for the liners. The complex shape of the packages may either be due to the package itself or caused by applications such as pouring elements, screw caps, drinking straws and the like. Even with such packaging, however, there is a need to be able to stack the packaging in a stable manner.

Liners for stacking packages are known, for example, from CH 703 419 A2, DE 88 11 005 Ul, EP 2 107 009 A1 and EP 2 112 087 A1.

Although the interlayers shown there take into account even more complex-shaped packaging; However, they are much more expensive to manufacture and therefore have higher costs. The higher costs arise, for example, through a complex transformation of the intermediate layers or through the use of certain components such as reinforcing elements or the use of additional materials such as adhesives. Frequently, for example, "anti-slip" is used as the adhesive.

The invention is therefore based on the object described above

Blank and the method described above, as well as the packaging system described above in such a way and further develop that several layers of packaging with above applications on

cost-effective way can be safely stacked on each other. This object is achieved in a blank according to the preamble of claim 1, characterized in that at least some recesses of the auxiliary surface with respect to the folding line between this auxiliary surface and the main surface are arranged axisymmetrically to at least some recesses of the main surface.

The blank is used to produce an intermediate layer, in particular a multilayer intermediate layer, ie an intermediate layer with at least two layers or layers. The blank is initially characterized by a main surface with several recesses. Furthermore, the blank comprises at least one secondary surface with a plurality of recesses. Preferably, two or more minor surfaces are present. Recesses are understood to mean, in particular, continuous recesses, that is to say recesses which completely traverse the blank, such as a through-hole or a through-hole. The at least one minor surface is connected to the major surface along a fold line. The different areas or surfaces of the blank are thus delimited from one another by fold lines. The fold lines are intended to facilitate the folding of the blank; They can be realized, for example, by a material weakening, in particular by a perforation or an embossing or creasing of the blank.

According to the invention, at least some recesses of the minor surface are relative to the fold line between this minor surface and the major surface

arranged axially symmetrically to at least some recesses of the main surface. If there are several ancillary areas, this is preferably true for all ancillary areas. Due to the axisymmetric arrangement, the blank is particularly well suited to be folded. Because of the axis symmetry is achieved that the recesses of the main surface and the recesses of the minor surfaces are arranged congruently one above the other after folding. In this way, from a single-layer blank by folding a multi-layer intermediate layer can be produced with through recesses. This has the advantage that even with single-ply - and thus particularly favorable - blanks intermediate layers can be made with a greater thickness. such

Liners are required especially to compensate for unevenness, For example, if packaging with protruding applications (eg

Screw caps) to be stacked on each other.

According to one embodiment of the blank is provided that all recesses of the auxiliary surface with respect to the fold line between this side surface and the

Main surface axisymmetric to at least some recesses of

Main surface are arranged. If there are several ancillary areas, this is preferably true for all ancillary areas. By not just some, but all

Recesses of the auxiliary surface are arranged axially symmetrical, it is achieved that after folding all the recesses of the secondary surface are arranged congruent to their associated recesses of the main surface.

In a further embodiment of the blank, it is provided that the main surface and / or the auxiliary surfaces are rectangular, in particular square-shaped. Due to the rectangular or square shape is achieved that the main surfaces and / or secondary surfaces are limited by straight edges, which are particularly good for

Arrangement of fold lines are suitable. In addition, the rectangular shape has the advantage of ease of manufacture. In addition, due to their parallel sides, rectangles are particularly suitable for folding multi-layer products.

A further embodiment of the blank is distinguished by two secondary surfaces with a plurality of recesses, wherein both secondary surfaces are connected along fold lines to the main surface. Two folding surfaces create two folding edges after folding. Multi-ply blanks with fold edges have the advantage of greater stability over "open" edges, and fold edges usually have a rounded shape, so there is less risk of injury compared to sharp open edges.

For this embodiment, it is further proposed that the two auxiliary surfaces are connected on opposite sides of the main surface with the main surface. The opposite arrangement of the secondary surfaces has the advantage that the Side surfaces can be folded on both sides of the main surface, with rounded fold edges arise on both sides. Thus, on two sides compared to open edges, the stability can be increased and the risk of injury can be reduced.

According to a further embodiment of the blank, it is provided that the blank is made of paper or cardboard, in particular of corrugated cardboard. Paper, cardboard and corrugated board are characterized by low costs and good suitability for recycling (recycling). Corrugated board is produced by gluing together smooth and corrugated webs of paper and, despite its low density, has a high degree of strength, so that corrugated cardboard can be used to produce very light yet robust blanks. The blank may for example be made of corrugated cardboard according to the standard DIN 55468, Part 1, August 2004 issue (there in particular shaft C). Corrugated cardboard whose wave and cover papers have a thickness in the range between 80 g / m ² and 120 g / m ² have proven particularly advantageous.

A further embodiment of the blank provides that the blank has a thickness in the range between 3 mm and 5 mm. Especially with the use of corrugated cardboard blanks have proven to have a thickness in this range thickness and represent a good compromise between low cost and sufficient Flächenstauchdruck. As have particularly advantageous

Corrugated cardboard of the wave type C (wave height 3.1 mm to 3.9 mm) according to the standard DIN 55468, part 1, issue August 2004 proved.

After a further modification of the blank is provided that the

Recesses are round and have a diameter of at least 28 mm, in particular at least 30 mm. Round recesses with one

Diameters in the specified range can accommodate most applications (eg screw caps) and do not weaken the cut more than required. Alternatively or additionally, it is provided that the recesses have the shape of a slot. Slots have an elongated shape, so their length is greater than their width. The narrow sides can be formed for example by semicircles whose diameter corresponds to the width of the oblong hole. The

Slotted holes have, for example, a width of at least 28 mm or at least 30 mm and a length in the range between 50 mm and 100 mm. Slotted holes have the advantage that they can simultaneously accommodate two or more applications. Another advantage of oblong holes is that

Position shifts of the applications can be compensated. Such positional shifts can be caused, for example, by deformations

Another major cause of bulges is gravity, which acts on the contents of the package and causes the package to bulge outward in its lower region, which causes the package to bulge. bulges make it difficult to arrange the packages precisely, but the deviations can be compensated by the oblong holes, which are also useful if the distance between two recesses is very small, and thus only one Such recesses may then be replaced by a single oblong hole If several oblong holes are present, they may be arranged parallel or non-parallel to each other A further embodiment of the blank provides that the blank dres g and / or just trained. A one-piece design has the advantage over simpler manufacturability and a higher strength compared to a configuration composed of several parts. In addition, can be dispensed with additional components such as adhesive tape or the like. A planar design has the advantage that simple and inexpensive starting materials can be used, such as corrugated board. The object described above is also achieved by a method for producing a multilayer intermediate blank from a blank, comprising the following steps: a) providing a blank according to one of claims 1 to 10, and b) folding the blank along the fold lines between the main surface and the at least one secondary area. The production of the intermediate layer by folding has several advantages: One advantage is that the layers of the intermediate layer are held together by the resulting fold edges and need not be held together in another way (eg by adhesive). Another advantage is that wrinkles represent a particularly simple and inexpensive manufacturing process. By using the blank already described above, despite the recesses with single-layer - and thus particularly favorable - blanks intermediate layers can be made with greater thickness. The object described above is finally solved by a

A packaging system comprising: a pallet for transporting and / or storing packaging, at least one layer of packaging with applications, and at least one multilayer interlayer with recesses, wherein the

Liner is arranged on the location of the packaging. The packaging system is characterized by the fact that the applications of the packaging in the

Recesses of the intermediate layer are arranged. Preferably, this has

Packaging system a plurality of layers of packaging with applications, wherein between each two superimposed layers of packaging, a multi-layer intermediate layer is arranged with recesses. By using an intermediate layer with recesses packaging with protruding applications can be safely stacked.

According to one embodiment of the packaging system is provided that the

A liner of a blank according to any one of claims 1 to 10 is folded according to a method of claim 11. By using one of the previously described blanks for the production of the intermediate layer, the already described advantages. In particular, it is also possible to produce intermediate layers of greater thickness with single-layer blanks, and thus particularly favorable. With regard to the packaging system, it is further proposed that the

Packages are summarized by outer packaging to units of multiple packaging, in particular to units of four or six packages. The combination of packaging into units has the technical advantage, in addition to fulfilling customer wishes, that packaging can be stacked more safely. Because a single package is protected by the cohesion with the other packaging of the same unit from falling out of the stack. The grouping of the packages into units can be done, for example, by welding them into a plastic film or by placing them in other outer packages (for example so-called "trays").

For this purpose, it is finally proposed that each unit of packaging is connected by an intermediate layer with at least one other unit of packaging form-fitting and / or non-positively. This configuration requires that the intermediate layers are made at least so large that an intermediate layer can cover two or more units of packaging and thus can connect to one another positively and / or non-positively. A

positive connection can be achieved for example by the fact that the applications of the packaging are pushed into the recesses of the intermediate layers. A frictional connection can be achieved, for example, by creating friction between the packages and the intermediate layers as a result of the mass of the packages.

The invention will now be described with reference to a preferred one

Embodiment illustrative drawing explained in more detail. In the drawing show: Fig. 1: a known from the prior art range with several

Packaging with applications in perspective view,

2 shows a blank according to the invention for producing an intermediate layer in a plan view,

Fig. 3: a resulting from the blank of Fig. 2 by folding

Intermediate layer in a plan view, FIG. 4: an inventive packaging system in perspective view,

5: the packaging system of FIG. 4 in a plan view,

Fig. 6: two stacked packages without intermediate layer, and

Fig. 7: two stacked packages with a

Inventive liner.

Fig. 1 shows a known from the prior art pallet 1 with several

Packaging 2 with applications 3 in perspective view. The packages 2 shown in FIG. 1 are cuboidal packages 2 of a composite material, for example a composite of several thin layers of paper, cardboard, plastic or metal. The applications 3 are screw caps that are screwed onto pouring openings. The packages 2 are combined into units 4, each comprising six packages 2. The grouping of the packages 2 into units 4 can be done, for example, by welding them into a plastic film or by setting them in others

Owing to the protruding shape of the applications 3, the packages 2 have no flat upper sides, which makes the stacking of several layers of packages 2 on the pallet 1 more difficult. In Fig. 2, an inventive blank 5 for producing an intermediate layer is shown in a plan view. The blank 5 is made of corrugated cardboard and is one-piece and flat. The blank 5 comprises a central rectangular main surface 6 and two rectangular secondary surfaces 7a, 7b. Both auxiliary surfaces 7a, 7b are connected to the main surface 6 along folding lines 8a, 8b. The minor surfaces 7a, 7b are connected to the main surface 6 on opposite sides of the main surface 6. The fold lines 8a, 8b can be designed, for example, as perforations and serve to simplify the folding of the two auxiliary surfaces 7a, 7b onto the main surface 6 (folding direction in FIG. 2 represented by arrows).

The blank 5 shown in FIG. 2 has recesses 9 both in the region of the main surface 6 and in the region of both secondary surfaces 7a, 7b. Some of the

Recesses 9a are round, other recesses 9b have the shape of a slot. The round recesses 9a have a diameter Dg of at least 28 mm or at least 30 mm. The elongate recesses 9b have a width Bg of at least 28 mm or at least 30 mm and a length Lg in the range between 50 mm and 100 mm. All the recesses 9 of the left side surface 7a are arranged with respect to the left fold line 8a axisymmetric to some recesses 9 of the main surface 6, namely to those

Recesses 9, which are arranged in the left half of the main surface 6. Likewise, all the recesses 9 of the right side surface 7b are arranged with respect to the right fold line 8b axisymmetric to some recesses 9 of the main surface 6, namely to those recesses 9 which are arranged in the right half of the main surface 6.

FIG. 3 shows an intermediate layer 10 formed by folding from the blank 5 from FIG. 2 in a plan view. The intermediate layer 10 has been created by folding the blank 5 shown in FIG. 2 along the fold lines 8a, 8b, wherein the two secondary surfaces 7a, 7b have been folded over by approximately 180 ° and now on the main surface 6 (hidden in FIG. 3) rest. It is therefore a double-layered or double-layered intermediate layer 10. Formed in the region of the fold lines 8a, 8b Fold edges IIa, IIb. In addition, a seam 12 is formed between the two inwardly folded outer edges of the auxiliary surfaces 7a, 7b. In addition, it can be clearly seen in FIG. 3 that both side surfaces 7a, 7b jointly cover an area which corresponds to the area of the main area 6. If - as shown in Fig. 3 - the two

Side surfaces 7a, 7b have an identical size, the area of the main surface 6 is twice as large as the area of a single secondary surface 7a, 7b. moreover

Fig. 3 illustrates that the recesses 9 of the side surfaces 7 a, 7 b and the

Recesses 9 of the main surface 6 are arranged congruently one above the other after folding. This is a consequence of the fold lines 8a, 8b

Axially symmetrical arrangement of the recesses 9.

In Fig. 4, an inventive packaging system 13 is shown in a perspective view. The packaging system 13, in addition to the pallet 1 already known from FIG. 1, also comprises a layer of packaging 2 with applications 3, which has also already been described in connection with FIG. Third

Component comprises the packaging system 13 an already known from Fig. 3 intermediate layer 10, which is placed on the packaging 10. It can be clearly seen that the applications 3 of most packaging 2 are arranged in the recesses 9 of the intermediate layer 10. The round recesses 9a serve the

Receiving a single application 3, while the elongated receptacles 9b are used to accommodate two applications 3 different packaging 2.

As a result of the double-layer formation of the intermediate layer 10, the thickness of the intermediate layer 10 corresponds approximately to the height of the applications 3, so that a substantially flat surface for stacking further layers of packaging 2 is provided by the intermediate layer 10.

Fig. 5 shows the packaging system 13 of Fig. 4 in a plan view. In the plan view, the shape and the position of each package 2 are particularly well recognizable (dashed lines). It also becomes clear that in the liner 10 for each of the

Between layer 10 covered application 3 a recess 9 is provided, which is assigned either an application 3 alone (round recess 9a) or two Applications 3 is assigned together (elongated recess 9b). The packaging system 13 shown in FIG. 5 comprises fourteen units 4 with six packages each. Six units 4 are completely covered by the intermediate layer 10 and eight units 4 are partially covered by the intermediate layer 10. The packages 2 may, for example, a volume of 1000 ml and a

Stand area of 90 mm x 59 mm. For example, the pallet 1 (hidden in FIG. 5) may have an area of 800 mm x 600 mm, and the intermediate layer 10 may have an area of 680 mm x 480 mm, for example. In this case - shown in Fig. 5 - the outermost row of packages 2 is not covered by the intermediate layer 10. The intermediate layer 10 is therefore smaller than the pallet 1 and the size of the area covered by the packaging 2. However, each package 2 is secured indirectly via at least one other package 2 of the same unit 4 by the intermediate layer 10. The interlayer 10 may also partially cover the outer row packages 2 (e.g., 700 mm x 520 mm) or entirely (e.g., 800 mm x 600 mm), as shown in Figure 5. Other dimensions are also possible, as long as the size of the intermediate layers is adapted to the size and shape of the pallet and the packages standing thereon.

In Fig. 6 two stacked packages 2a, 2b are shown without intermediate layer. The lower package 2b has an application 3 in the form of a

Screw cap on. Due to the above shape of the application 3, the upper package 2a only touches the lower package 2b on its application 2. The vertical distance between the two packages 2a, 2b therefore corresponds to the height H _{3 of} the application 3. The height H _{3 of} the application 3 can for example, in the range between 8 mm and 16 mm, in particular in the range between 10 mm and 14 mm.

Finally, FIG. 7 shows two packages 2a, 2b stacked on top of each other with an intermediate layer 10. In the section represented by the intermediate layer 10, the main surface 6 forms the lower layer and the secondary surface 7a forms the upper layer of the intermediate layer 10. The height Hio of the intermediate layer 10 is preferred slightly smaller than the height H _{3 of} the application 3, since the packaging 2 in

stacked state typically form bulges 14 that compensate for the difference. Preferably, the difference between the height H _{3 of} the application 3 and the height Hio of the intermediate layer 10 is less than 6 mm, in particular less than 4 mm.

LIST OF REFERENCE NUMBERS

1 pallet

2, 2a, 2b: packaging

3: Application

4: unit

5: cut

6: Main area

7a, 7b: secondary surface

8a, 8b: fold line

9, 9a, 9b: recess

10: intermediate layer

I Ia, I Ib: folding edge

12: interface

13: Packaging system

14: bulge

Bg: width (of the recess 9b)

Dg: diameter (the recess 9a) Lg: length (the recess 9b)

H ₃ : height (the application 3)

Hio: height (the liner 10)

Claims

claims

Blank (5) for producing an intermediate layer (10), in particular a multilayer intermediate layer, comprising:

- A main surface (6) with a plurality of recesses (9 a, 9 b), and

at least one auxiliary surface (7a, 7b) with a plurality of recesses (9a, 9b),

wherein the at least one auxiliary surface (7a, 7b) is connected to the main surface (6) along a folding line (8a, 8b),

characterized in that

at least some recesses (9a, 9b) of the auxiliary surface (7a, 7b) with respect to the folding line (8a, 8b) between this auxiliary surface (7a, 7b) and the main surface (6) are axisymmetric to at least some recesses (9a, 9b) of the Main surface (6) are arranged.

Blank according to claim 1,

characterized in that

all the recesses (9a, 9b) of the auxiliary surface (7a, 7b) with respect to the folding line (8a, 8b) between this auxiliary surface (7a, 7b) and the main surface (6) are axially symmetrical with respect to at least some recesses (9a, 9b)

Main surface (6) are arranged.

Blank according to claim 1 or 2,

characterized in that

the main surface (6) and / or the auxiliary surfaces (7a, 7b) are rectangular, in particular square-shaped.

Blank according to one of claims 1 to 3,

marked by two auxiliary surfaces (7a, 7b) with a plurality of recesses (9a, 9b), wherein both auxiliary surfaces (7a, 7b) along fold lines (8a, 8b) are connected to the main surface (6).

Blank according to claim 4,

characterized in that

the two auxiliary surfaces (7a, 7b) are connected on opposite sides of the main surface (6) to the main surface (6).

Blank according to one of claims 1 to 5,

characterized in that

the blank (5) is made of paper or cardboard, in particular of corrugated cardboard.

Blank according to one of claims 1 to 6,

characterized in that

the blank (5) has a thickness in the range between 3 mm and 5 mm.

Blank according to one of claims 1 to 7,

characterized in that

the recesses (9a) are round and have a diameter of at least 28 mm, in particular at least 30 mm.

Blank according to one of claims 1 to 8,

characterized in that

the recesses (9b) have the shape of a slot.

Blank according to one of claims 1 to 9,

characterized in that

the blank (5) is formed in one piece and / or flat. Method for producing a multilayer intermediate layer (10) from a blank (5), comprising the following steps:

a) providing a blank (5) according to any one of claims 1 to 10, and b) folding the blank (5) along the fold lines (8a, 8b) between the major surface (6) and the at least one minor surface (7a, 7b).

Packaging system (13), comprising:

a pallet (1) for the transport and / or storage of packages (2),

- At least one layer of packaging (2) with applications (3), and

at least one multi-layer intermediate layer (10) with recesses (9a, 9b),

- wherein the intermediate layer (10) on the position of the packaging (2) is arranged,

characterized in that

the applications (3) of the packages (2) are arranged in the recesses (9a, 9b) of the intermediate layer (10).

Packaging system according to claim 12,

characterized in that

the intermediate layer (10) is folded from a blank (5) according to any one of claims 1 to 10 according to a method according to claim 11.

Packaging system according to claim 12 or claim 13,

characterized in that

the packages (2) by outer packaging to units (4) of several packages (2), in particular to units (4) of four or six

Packaging (2) are summarized.

15. Packaging system according to claim 14,

characterized in that Each unit (4) of packaging (2) is connected in an interlocking manner (10) to at least one other unit (4) of packages (2) in a form-locking and / or force-locking manner.