WO2010127741A1

WO2010127741A1 - Chocolate packaging and method for packaging chocolate bars

Info

Publication number: WO2010127741A1
Application number: PCT/EP2010/001764
Authority: WO
Inventors: Ingo Holtkamp
Original assignee: Chocoladefabriken Lindt & Sprüngli Ag
Priority date: 2009-05-05
Filing date: 2010-03-20
Publication date: 2010-11-11
Also published as: ES2457225T3; CH700968A1; EP2427390B1; EP2427390A1

Abstract

The invention relates to packaging for chocolate bars, comprising an outer packaging (1) and an inner packaging (25), wherein the inner packaging comprises at least one first film (28) and a second film (29). A second viewing window designed, for example, as a transparent area (20, 21) of the inner packaging, is present beneath a first viewing window (2) of the outer packaging. The chocolate packaging thus described and claimed is intended to be produced by means of a commercially available bar wrapping machine.

Description

Chocolate packaging and method for packaging chocolate bars

The invention is in the field of packaging, in particular that of packaging for chocolate bars. These packages are preferably designed with viewing windows to visually present the package contents to the customer.

Chocolate bars are usually wrapped in an aluminum foil and wrapped with a stronger paper on which information about the product is printed. For high-quality products, the paper of the outer packaging is replaced by cardboard, which offers additional mechanical protection and is preferred by the customer in terms of look and feel in the upper price segment. Another common way to package chocolate bars is by welding them into plastic packaging and printing or sticking them with product-relevant information. This type of packaging is commonly used on cheap products. In the upper quality and price segment, such plastic packaging can at most be used as inner packaging, which is supplemented by an outer packaging made of cardboard.

In order to protect the packed chocolate bars from harmful environmental influences, especially against light in the UV as well as in the visible range, completely closed packages are used for industrially manufactured products. In particular, chocolate is reluctant to be exposed to light in the near UV range, as it promotes auto-oxidation and can cause color changes, flavor defects and / or fat oxidation.

From other areas of the food industry packaging is also known, which offer the customer the view of the packaged product. For example, from the field of meat and sausage packaging. The American patent US 3,803,332 shows a package for bacon slices, which is constructed of a cardboard outer packaging with viewing window and an inner packaging with a stable film. The transparent area clears the view of the product. In addition, a transparent film is provided here which protects the product from discoloration due to oxidation.

The cited prior art of the US patent discloses food packaging which has a shorter shelf life than that of chocolate. For this reason, the requirements for this packaging are different than those on chocolate packaging. Packaging in this area is aimed at preserving the product. It is unusual to use this type of packaging in chocolate bars, since in this area a main focus is on the optical and the haptic perception by the consumer. Furthermore, there is no technical need to package chocolate bars under exclusion of air, as is done for bacon or sausage slices.

A major disadvantage of the prior art is that packages are disclosed which do not allow individual adaptation depending on the contents of the package when packaging the product.

An object of the invention is to provide a package which avoids the disadvantages of the prior art.

The object is achieved by the packaging defined in the independent claim and relates to the high variability of the packaging design without costly conversion of the equipment during the packaging process. Preferred embodiments of the packaging result from the dependent claims. Packaging for chocolate is being subject to ever more varied requirements, on the one hand to optimally present the product to the customer and, on the other hand, to protect the contents of the package, against breakage and optical changes, for example due to UV radiation and temperature fluctuations. This allows an at least two-part construction, comprising an inner packaging and an outer packaging. Each type of chocolate places different demands on the packaging process. For example, in the case of chocolate with Nusssplittern care should be taken to use an inner packaging, which has a sufficient tensile strength. For this purpose are just plastic packaging, since these can not be penetrated by the sometimes pointed Nusssplittern. Any damage to the packaging prior to sale would greatly reduce the value of the product. Other types of chocolate, however, must be protected from UV light, which requires opaque packaging. There is thus the need to combine different packaging materials. With all these requirements, a complex conversion of the packaging process in the chocolate factory is connected. A significant advantage of the invention compared to the prior art results from the possibility of using an inner packaging, which is composed of at least two different film materials, multi-layered. The inner packaging then has, for example, two films, one of the two films being transparent and the other being non-transparent. The transparent film may for example be made of a weldable plastic film, such as PP or PE. It was found that a plastic film with a thickness of 1 5 - 30 microns proves to be advantageous in terms of tensile strength in the packaging of nut chocolate. As the second film, a metal foil may be used, preferably an aluminum foil having a thickness of 8-1.5 μm. The structure of the inner packaging of at least two materials can be implemented by the fact that the transparent film is coated with the non-transparent film. The metal foil conceals selected areas of the plastic film. Any parts of the product are covered or exposed. Thus, appropriate viewing windows can be created in the inner packaging. The coating with film can for example also be done so that different Pattern can be applied to the transparent material. The pattern can not only be created by the application of film, but by color printing or by selective coloring of the desired film areas of the inner packaging. Another possibility results from simply replacing the transparent area of the inner packaging with an intransparent area and thus obscuring the view of the product or only partially releasing it. In a preferred embodiment, the view of the viewing window of the inner packaging is exposed by a first viewing window in the outer packaging. The first window in the outer packaging can have any geometric shape. For example, it can be rectangular, square, or round. Under the first window of the outer packaging is the second window of the inner packaging which is designed for example as a transparent region of the inner packaging. Thus, the Cestaltungsweise of the viewing window of the inner packaging and the optical effects generated by the interaction of the first and second viewing window quasi arbitrarily change. This change can be brought about, for example, by turning the inner packaging in the outer packaging.

Another way to create this type of inner packaging is to not completely and directly apply the non-transparent film directly to the plastic film, but only materially connect along the border between non-transparent film and plastic film.

The described and claimed under claim 1 to claim 1 1 Schokoladenverpac- kung should preferably be prepared with a commercial table winding machine. These types of machines serve to envelop the product with a preferably rectangular or square inner packaging and outer packaging. In such a machine plates and bars between 30 g and 1000 g can be packed. Preferably, the range is between 30 g and 500 g. It is customary to wind in the same table winding machines, sheets or boards in small package sizes, for example under T OOg, but also in large package sizes, for example 400 g. This process is the same for every type of chocolate, regardless of size and weight. Prior art chocolate packages in which the inner packaging is made of aluminum foil and the outer packaging of paper are packaged in these machines. The material for the inner packaging is fed in one lane or in several tracks. It can be packed up to 200 plates per minute, with this value for plates larger than 150 g correspondingly smaller. The process can be carried out in one or two stages. In the first stage, the wide-side flaps of the inner packaging are closed cohesively by the table winding machine. In the second stage, the impact of the inner packaging is carried out in the outer packaging which may be made of cardboard, paper or a strong plastic film, for example. When wrapping the inner packaging with the outer packaging, the outer packaging is guided on or under the chocolate bar. When packing the chocolate, the inner packaging is folded first and then the outer packaging. It has been found that the use of the currently in-process commercial Tafelwickelmaschine without further adaptation is only possible if the wide-side and the longitudinal sides extending flaps of the inner packaging are made of a material which, after folding in the desired folded position remains and does not return to the starting position. It has proved to be advantageous if the broad-side closure flaps are preferably designed as nontransparent areas, for example as a film composite of metal foil and plastic film, since these apply less restoring forces against the direction of folding during folding. The metal foil reduces the restoring forces of the plastic film. After completion of the folding process, the wide-side flaps lie on the non-transparent areas or even the transparent areas of the package and maintain this shape. So it is possible to wrap the inner packaging with the outer packaging without causing unsightly deformation of the inner packaging. Depending on the setting of the table winding machine, the folding can be carried out in such a way that the wide On the side of the closing flap, they are trapezoidal, triangular or rectangular after completion of the folding process.

An embodiment of the invention will be described with reference to the following figures. Show it:

1 shows an outer packaging in the unfolded state;

FIG. 2 shows the outer packaging in the unfolded state with the closed inner packaging lying therein; FIG.

3 shows the folded outer packaging in the opened state in a perspective view with a closed inner packaging lying therein; and the

4 shows the folded outer packaging in the closed state, wherein the transparent and the non-transparent regions of the inner packaging overlap the viewing window of the outer packaging differently.

Fig. 5 section A-A two-layer inner packaging

An embodiment of the invention relates to a package for chocolate candy with 100 g, a width of 8.5 cm, a length of 19.0 cm, a thickness of 0.5 cm, and predetermined breaking points in the longitudinal and transverse directions. FIG. 1 shows the outer packaging 1 in the unfolded state. In this preferred embodiment, the viewing window 2 is designed as a square recess in the outer packaging 1. In further embodiments, the viewing window can also assume any other arbitrary shape and be positioned at other locations of the outer packaging 1. This chocolate bar 31 is, as shown in FIG. 3, surrounded by an inner packaging 25. FIG. 2 shows the inner packaging 25 in the unfolded, opened outer packaging 1.

In the exemplary embodiment according to FIG. 2, the inner packaging 25 is designed so that the transparent region 20 of the inner packaging encloses a viewing window with a height of 6 cm, which lies behind the viewing window 2 of the outer packaging 1 in the folded state of the outer packaging 1, so that the view is released on the chocolate bar 31. Connected to the transparent area of the inner package 25 is an intransparent area 18 with a height of 8 cm. A transparent region 21 with a height of 0.5 cm, adjoined by an intransparent region 19 with a height of 4 cm, adjoins the intransparent region of the inner packaging 18. When packaging the chocolate bar 31 in a commercial sheet wrapping machine, the closure of the inner packaging is first carried out by a cohesive composite material 23, 15. Then, the inner packaging with the longitudinally extending flap of the inner packaging 26 is closed. The subsequent folding of the wide-side flaps of the inner packaging 16, 22 takes place in such a way that the wide-side flap of the inner packaging 22, 16 lie on the intransparent areas of the inner packaging 17, 19 and no longer remove from this position. In the folding of the outer packaging 1, the two side flaps 8, 9 extending on the broad side are first folded along the wide-side fold lines 4, 7, so that they rest on the wide-opening flaps of the inner packaging 16, 22 come. Then, the folding of the longitudinal side extending side flap 10, along the longitudinally extending fold line 5. Finally, the lid of the outer packaging 27 is folded along the longitudinally extending fold line 6 and connected to the longitudinal side extending side flap 10 cohesively. During the folding of the outer packaging, side faces 1 1, 1 2 extending on the longitudinal side and side faces 1, 3 extending on the broad side are formed. Figure 4 discloses further exemplary embodiments of the invention. It is obvious to the person skilled in the art that there are enormous possibilities for variation with regard to the design possibilities of the outer packaging and the inner packaging.

Figure 5 discloses the multi-layered inner packaging. In this preferred embodiment, a first film 28 is laminated to a second film 29. The first film forms a cohesive composite material with the second film.

List with reference numbers

1 outer packaging

2 viewing windows

3 floor area

4.7 wide folding line

5.6 longitudinal folding lines

8.9 wide side flaps

10 long side flap

1 1, 1 2 longitudinal side surfaces

13,14 broadside side surfaces

15, 23 cohesive composite material , 22 wide side flaps of the inner packaging, 18,19 non-transparent areas, 21 transparent areas Packaging for chocolate bar Inner packaging Longitudinal flap of the inner packaging Lid of the outer packaging First foil Second foil, 30 ', 30 "Design, arrangement Inner packing in the outer packaging Chocolate bar

Claims

claims

Packaging for chocolate bars (24) comprising an outer packaging (1) of rigid material and an inner packaging (25) of film-like material, characterized in that the inner packaging (25) comprises a multilayer, preferably at least two-layered film.

2. Packaging for chocolate bars (24) according to claim 1, characterized in that the multilayer, preferably two-ply film, a first film (28) with non-transparent areas (17, 18, 19) and a second film (29) transparent areas ( 20, 21).

3. Packaging for chocolate bars (24) according to claim 2, characterized in that the transparent areas (20, 21) are made of a plastic film and the intransparent areas (17, 18, 19) of a metal foil.

4. Packaging for chocolate bars (24), according to claim 2, characterized in that the non-transparent area (17, 18, 19) by applying film to the transparent area (20, 21) is realized.

5. Packaging for chocolate bars (24) according to claim 1 and claim 2, characterized in that the outer packaging (1) at least a first viewing window (2), the inner packaging at least one non-transparent area (17, 18, 19) and at least one transparent area (20, 21) formed as having at least a second viewing window of the inner packaging.

6. Packaging for chocolate bars (24) according to claim 2 and claim 5, characterized in that at least one of the transparent areas (20, 21) formed ausgebil- det as the second viewing window in the inner packaging, at least one of the first viewing window (2) overlaps.

7. Packaging for chocolate bars (24) according to claim 2 and claim 5, characterized in that at least one of the non-transparent areas (17, 18, 19), at least one of the first viewing window (2) overlaps.

8. Packaging for chocolate bars (24) according to claim 2, characterized in that the non-transparent areas (1 7, 1 9) form a broadside flap (16, 22) of the inner packaging.

9. Packaging for chocolate bars (24) according to claim 2, characterized in that the non-transparent areas (17, 1 9) form a longitudinally extending closure flap (26) of the inner packaging.

10. Packaging for chocolate bars (24) according to claim 8 and claim 9, characterized in that the wide-side closing flaps (16, 22) and the longitudinally extending closure flap (26) a cohesive material verbünd (1 5, 23) form.

1 1. A process for producing a packaging for chocolate bar (24) according to one of the preceding claims, characterized in that in a first process step, the first film (28) with non-transparent areas (17,18,19) cohesively on a second film with transparent Areas (20,21) is applied.

12. A method for producing a packaging for chocolate bars according to claim 1 1, claim 8 and claim 9, characterized in that a commercial Tafelwickelmaschine in a first step, the broadside flaps (16, 22) and longitudinally extending flaps (26) of Inner packaging materially connects and in a further process step, the wide-side extending (16, 22) and longitudinally extending closure flaps (26) of the inner packaging folds.