EP4245673A1 - Emballage alimentaire et procédé de fabrication d'un emballage alimentaire - Google Patents
Emballage alimentaire et procédé de fabrication d'un emballage alimentaire Download PDFInfo
- Publication number
- EP4245673A1 EP4245673A1 EP22162989.2A EP22162989A EP4245673A1 EP 4245673 A1 EP4245673 A1 EP 4245673A1 EP 22162989 A EP22162989 A EP 22162989A EP 4245673 A1 EP4245673 A1 EP 4245673A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- cardboard
- hollow
- cardboard body
- food packaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 50
- 235000013305 food Nutrition 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000000463 material Substances 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 7
- 229920000704 biodegradable plastic Polymers 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 238000004049 embossing Methods 0.000 description 6
- -1 polypropylene Polymers 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 235000020965 cold beverage Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 235000021260 warm beverage Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/34—Coverings or external coatings
- B65D25/36—Coverings or external coatings formed by applying sheet material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/265—Drinking cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
Definitions
- the invention relates to food packaging and in particular to a cup and a method for producing food packaging.
- packaging is either made from a single raw material or, if it consists of several different raw materials, that the raw materials can be separated according to type. This is particularly important for efficient recycling.
- packaging for food must be made from materials that are food-safe.
- as few resources as possible should be used to produce the packaging and the raw materials used should be as sustainable as possible.
- a packaging cup is known in which a plastic cup is covered with a cardboard jacket. Although such a packaging cup has a reduced proportion of plastic, the packaging cup is quite flexible, especially in the middle area. A Such packaging cups are therefore not suitable or only suitable to a limited extent as beverage cups. If the packaging cup is held a little too tightly, it will compress and the drink may spill out of the cup.
- One object of the invention is to provide a food packaging and a method with which food packaging can be produced that uses little plastic and little cardboard.
- the food packaging according to the invention and the food packaging produced using the method according to the invention are also sufficiently rigid at the same time, so that they do not immediately give in when they are touched with a little force.
- the food packaging is therefore also suitable for beverages and avoids the disadvantages known from the prior art mentioned above.
- the object is achieved with a food packaging with the features specified in claim 1 and a method for producing food packaging with the features specified in claim 2.
- the food packaging according to the invention which can in particular be a cup, comprises a container which has a base and a container side wall, the container side wall being curved. It is also a hollow cardboard body made from a flat piece of cardboard provided, wherein the hollow cardboard body is curved in such a way that it positively surrounds the container side wall at least where it is curved.
- the method according to the invention for producing food packaging comprises the following steps.
- a flat piece of cardboard is plastically formed into a curved hollow cardboard body.
- the hollow cardboard body is then positively connected to a curved container, at least where the container is curved, and forms the food packaging with it.
- the hollow cardboard body is wrapped around a mandrel before it is positively connected to the container. This allows the hollow cardboard body to be brought even closer to its final shape.
- the hollow cardboard body is cut to size before it is positively connected to the container.
- the cardboard is printed. This allows the food packaging to be provided with information (text and/or images) in a simple and cost-effective way.
- the cardboard is embossed.
- Embossing can give the food packaging a particularly high-quality appearance.
- the embossing can contain information that the user can grasp haptically.
- the cardboard is made from a material containing cellulose.
- the container is shaped and at the same time the hollow cardboard body is connected to the container. This method advantageously requires very few process steps.
- the container is shaped before it is positively connected to the hollow cardboard body.
- the container can cool down before further processing and comes closer to its final size. It then shrinks less or no longer when connected to the hollow cardboard body, so that the adhesive connection between the container and the hollow cardboard body improves. This is particularly advantageous if the container is made of polypropylene.
- the flat piece of cardboard is formed into the curved hollow cardboard body by deep drawing.
- Deep drawing has the advantage that it is a particularly cost-effective forming process because it enables particularly short cycle times, requires just a few work steps and the Deep drawing mold is inexpensive.
- deep drawing is simpler and more reliable than, for example, press forming or hydroforming.
- a recess is created in the hollow cardboard body and a bead is created on the container.
- the hollow cardboard body and the container are arranged relative to each other so that the bead lies in the recess. This allows the positive connection between the hollow cardboard body and the container to be further improved.
- the hollow cardboard body is glued to the container. This allows the connection between the hollow cardboard body and the container to be further improved.
- the bonding can also be used to connect the two longitudinal edges of the hollow cardboard body to one another.
- the cardboard has a basis weight of at least 150 g/m 2 . This can increase the rigidity of the food packaging and at the same time prevent the cardboard from tearing during forming. It is even better if the cardboard has a surface weight of 225 g/m2.
- the container is injection molded or blown. Such a process is particularly cost-effective.
- the container is made from biodegradable plastic. This can further improve the sustainability of food packaging.
- the food packaging according to the invention can be used as a cup or bowl.
- the starting product or raw part for producing the in Figure 5 Food packaging 5 shown as an example forms a flat piece of cardboard 1, which is also referred to as a board or cardboard board.
- a possible embodiment of table 1 is in Figure 3 shown. If the cardboard is in roll form, the panel 1 can be cut or punched out of it.
- cardboard is referred to as a material made from wood pulp, cellulose, semi-pulp or waste paper and an adhesive.
- Cardboard is like paper
- the starting product is a flat material.
- Cardboard differs from paper mainly in its basis weight. Both the basis weight and the pressed thickness are relevant for the definition of the cardboard. It is assumed here that the cardboard has a surface weight of at least 150 g/m 2 .
- Cardboard with a basis weight of at least 200 g/m 2 and even better with 225 g/m 2 has proven to be particularly suitable for forming.
- the cardboard can, for example, be printed with a logo 10 and/or text 11. If necessary, the logo 10 and/or the text 11 can also be embossed into the cardboard. Preferably, the text and/or logo are applied to the panel 1 before it is reshaped.
- the flat piece of cardboard 1 is plastically formed into a curved hollow cardboard body 2.
- the hollow cardboard body 2 is characterized, among other things, by the fact that it has a hollow shape in the form of a curvature.
- the hollow cardboard body 2 is also referred to here as a cardboard body 2.
- the hollow cardboard body 2 can also be referred to as a cup-shaped or bowl-shaped cardboard body.
- a possible embodiment of the hollow cardboard body 2 is in Figure 4 shown.
- the vertical projection of the x-axis creates the projection line 2.5 on the hollow cardboard body 2 and the vertical projection of the y-axis creates the projection line 2.6 on the hollow cardboard body 2.
- the two projection lines 2.5 and 2.6 illustrate the curved shape, i.e. two-dimensional curvature, which is the flat turns cardboard into a hollow cardboard body.
- Forming here means a manufacturing process in which the hollow cardboard body 3 is produced from the solid raw part, i.e. the flat piece of cardboard 1, by a permanent change in shape. Neither material is added nor removed. The material is plastically deformed. The mass of the blank (the piece of cardboard 1) is equal to the mass of the hollow cardboard body 3.
- the panel 1 can be formed, for example, by deep drawing. During deep drawing, the panel 1 is pulled and pressed into a hollow shape that is open on one side. If necessary, deep drawing can be carried out in several steps. The panel 1 can thus be drawn in one partial step into a first hollow shape with a small cross-section, so that a so-called pre-drawn hollow cardboard body is created. The pre-drawn hollow cardboard body can then be pulled into a further hollow mold which has a larger cross section than the first hollow mold, so that ultimately the hollow cardboard body 3 is created. During deep drawing, the material slides into the hollow mold and the thickness of the cardboard usually does not change or changes only slightly.
- the forming process creates a hollow cardboard body 2 with a curved surface 6, i.e. a two-dimensionally curved surface, from the cardboard sheet 1.
- the forming process from the flat to the curved shape is also referred to as cambering and the curved shape created thereby is also called cambering 6.
- the side edges 1.1 and 1.2 as well as the upper edge 1.3 and the lower edge 1.4 of the cardboard board 1 are reshaped by cambering.
- the shaping causes the original side edges 1.1 and 1.2 of the panel 1 to the side edges 2.1 and 2.2 of the hollow cardboard body 2.
- the upper edge 1.3 and the lower edge 1.4 of the panel 1 become the upper edge 2.3 and lower edge 2.4 of the hollow cardboard body 2.
- embossing the cardboard for example, it is provided with a logo, a character and/or other information, with only the surface of the cardboard panel 1 being shaped in relief.
- embossing an embossing tool is pressed onto the cardboard panel 1, which causes its surface to be deformed into a relief. The flat shape of the cardboard board 1 and its dimensions are retained during embossing.
- the hollow cardboard body 2 can be cut to size before it is positively connected to the container 4. This can be helpful, for example, if not all of the material on the panel 1 slides during the forming process and excess material remains on one or more of the edges 2.1, 2.2, 2.3 and 2.4.
- the hollow cardboard body 2 is then positively connected to a container 4 and forms the food packaging 5 with it.
- a possible embodiment of the container 4 is shown in FIG Figures 1 and 2 shown in a three-dimensional view, with the container 4 in Figure 1 a non-transparent body and in Figure 2 is a transparent body.
- the step in which the hollow cardboard body 2 and the container 4 are positively connected to one another can be carried out in various ways.
- the hollow cardboard body 2 is first wrapped around a mandrel so that the two longitudinal edges 2.1 and 2.2 of the hollow cardboard body 2 come to rest adjacent to one another.
- the now adjacent longitudinal edges 2.1 and 2.2 of the hollow cardboard body 2 are then connected to one another, for example by gluing them together.
- the now jacket-shaped hollow cardboard body 2 is placed over the container 4.
- the cambered shape 6 of the hollow cardboard body 2 and the cambered shape 6 of the side wall 4.1 of the container 4 come to rest on one another in a form-fitting manner.
- the crowning 6 of the hollow cardboard body 2 and the crowning 6 of the side wall 4.1 of the container 4 are coordinated with one another so that they fit together.
- the hollow cardboard body 2 is connected to the container 4 at the same time. This can be done, for example, by first placing the hollow cardboard body 2 in a hollow mold (negative mold). The material from which the container is to be made (for example a film) is then heated and blown into the hollow mold with compressed air. The compressed air ensures that the container 4 is shaped and the side wall 4.1 of the container 4 conforms to the shape of the hollow cardboard body 2.
- a hollow mold negative mold
- the material from which the container is to be made for example a film
- the compressed air ensures that the container 4 is shaped and the side wall 4.1 of the container 4 conforms to the shape of the hollow cardboard body 2.
- a recess is created in the hollow cardboard body 2 and a bead is created on the container 4.
- the hollow cardboard body 2 and the container 4 are arranged relative to one another in such a way that the bead on the container is in the recess comes to rest.
- several recesses can also be created on the hollow cardboard body 2.
- a corresponding number of beads are then generated on the container 4.
- the hollow cardboard body 2 and the container 4 are arranged relative to one another in such a way that the beads come to rest in the recesses.
- the hollow cardboard body 2 is glued to the container 4.
- the container 4 can be produced, for example, by thermoforming. First, a bowl is created from the flat raw material by deep drawing. The side wall and the bottom of the bowl are still the same thickness. Then only the side wall of the heated bowl is pulled, so that only the thickness of the side wall is reduced, but not the thickness of the base. Unlike deep drawing, the wall thickness of the container being formed decreases during thermoforming.
- the container 4 can be made, for example, from polyethylene (PE), polystyrene, polyethylene terephthalate (PET), polyethylene furanoate (PEF) or polypropylene (PP) or from a mixture of these materials. It is also possible to produce the container 4 from a multilayer film, with the individual layers of the film each consisting of one of the aforementioned materials.
- the container 4 is preferably made of biodegradable plastic.
- the food packaging 5 according to the invention can be used to store any type of food become.
- solid as well as powdery, mushy, creamy or liquid foods are referred to as foods.
- the food packaging according to the invention can be used, for example, to store vegetables, fruit, meat, fish, semi-finished or fully prepared meals, solid and liquid ingredients for meals and also cold or warm drinks.
- the food packaging 5 can also be different than that in Figure 5 have the shape shown.
- the cardboard body 2 has a stronger curvature 6 Figure 5 shown.
- An embodiment of the cardboard body 2 with such a more pronounced curvature 6 is in the Figures 6 and 7 shown.
- the cardboard body 2 is not just the one as in Figure 5 curvature 6 shown, but rather several curvatures.
- An exemplary embodiment of such a food packaging 5 designed with two curvatures 6 and 7 and the corresponding cardboard body 2 is shown in FIG Figures 8 and 9 shown.
- One curvature is curved to the right and the other to the left.
- the cardboard body 2 only partially, i.e. in a certain section, forms a positive fit with the curved container 4.
- the cardboard body 2 is preferably connected to it in a form-fitting manner at least where the container 4 is curved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22162989.2A EP4245673A1 (fr) | 2022-03-18 | 2022-03-18 | Emballage alimentaire et procédé de fabrication d'un emballage alimentaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22162989.2A EP4245673A1 (fr) | 2022-03-18 | 2022-03-18 | Emballage alimentaire et procédé de fabrication d'un emballage alimentaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4245673A1 true EP4245673A1 (fr) | 2023-09-20 |
Family
ID=80820292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22162989.2A Pending EP4245673A1 (fr) | 2022-03-18 | 2022-03-18 | Emballage alimentaire et procédé de fabrication d'un emballage alimentaire |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP4245673A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024117149A1 (de) * | 2024-06-18 | 2025-12-18 | Kiefel Gmbh | Dreidimensionaler Formkörper und Verfahren zur Herstellung eines dreidimensionalen Formkörpers aus faserhaltigem Material |
| DE102024117136A1 (de) * | 2024-06-18 | 2025-12-18 | Kiefel Gmbh | Dreidimensionaler Formkörper und Verfahren zur Herstellung eines dreidimensionalen Formkörpers aus faserhaltigem Material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009130043A1 (fr) * | 2008-04-24 | 2009-10-29 | Rundpack Ag | Procédé de fabrication d’un récipient d’emballage combiné ainsi que d’une partie extérieure en forme d’enveloppe |
| WO2011003569A2 (fr) * | 2009-07-06 | 2011-01-13 | Huhtamäki Oyj | Récipient en carton |
| US20140048440A1 (en) * | 2012-08-14 | 2014-02-20 | New Wincup Holdings, Inc. | Stretch sleeve labeled foam container |
| EP2778084A1 (fr) * | 2013-03-12 | 2014-09-17 | Optipack GmbH | Récipient pour denrées alimentaires comprenant un gobelet intérieur et une manchette de renforcement, gobelet intérieur pour de tels récipients, et procédé de fabrication de tels récipients |
| DE202020000644U1 (de) | 2020-02-17 | 2021-05-18 | Gizeh Verpackungen Gmbh & Co. Kg | Verpackungsbecher |
-
2022
- 2022-03-18 EP EP22162989.2A patent/EP4245673A1/fr active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009130043A1 (fr) * | 2008-04-24 | 2009-10-29 | Rundpack Ag | Procédé de fabrication d’un récipient d’emballage combiné ainsi que d’une partie extérieure en forme d’enveloppe |
| WO2011003569A2 (fr) * | 2009-07-06 | 2011-01-13 | Huhtamäki Oyj | Récipient en carton |
| US20140048440A1 (en) * | 2012-08-14 | 2014-02-20 | New Wincup Holdings, Inc. | Stretch sleeve labeled foam container |
| EP2778084A1 (fr) * | 2013-03-12 | 2014-09-17 | Optipack GmbH | Récipient pour denrées alimentaires comprenant un gobelet intérieur et une manchette de renforcement, gobelet intérieur pour de tels récipients, et procédé de fabrication de tels récipients |
| DE202020000644U1 (de) | 2020-02-17 | 2021-05-18 | Gizeh Verpackungen Gmbh & Co. Kg | Verpackungsbecher |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024117149A1 (de) * | 2024-06-18 | 2025-12-18 | Kiefel Gmbh | Dreidimensionaler Formkörper und Verfahren zur Herstellung eines dreidimensionalen Formkörpers aus faserhaltigem Material |
| DE102024117136A1 (de) * | 2024-06-18 | 2025-12-18 | Kiefel Gmbh | Dreidimensionaler Formkörper und Verfahren zur Herstellung eines dreidimensionalen Formkörpers aus faserhaltigem Material |
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