EP4385911A1 - Récipient d'emballage avec système de ventilation - Google Patents

Récipient d'emballage avec système de ventilation Download PDF

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Publication number
EP4385911A1
EP4385911A1 EP23159466.4A EP23159466A EP4385911A1 EP 4385911 A1 EP4385911 A1 EP 4385911A1 EP 23159466 A EP23159466 A EP 23159466A EP 4385911 A1 EP4385911 A1 EP 4385911A1
Authority
EP
European Patent Office
Prior art keywords
packaging
cup
packaging container
gas
channels
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
Application number
EP23159466.4A
Other languages
German (de)
English (en)
Inventor
Meiert Johan Grootes Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panadoro Group AG
Original Assignee
Panadoro Group AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panadoro Group AG filed Critical Panadoro Group AG
Priority to EP23159466.4A priority Critical patent/EP4385911A1/fr
Publication of EP4385911A1 publication Critical patent/EP4385911A1/fr
Pending legal-status Critical Current

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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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1622—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a passage for the escape of gas between the closure and the lip of the container mouth
    • 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—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, 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
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • 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
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5013—Details of flexible tape or foil-like material the tape covering almost the whole of the container end panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5072—Details of hand grip, tear- or lift-tab
    • B65D2517/5083—Details of hand grip, tear- or lift-tab with means facilitating initial lifting of tape, e.g. lift or pull-tabs

Definitions

  • the invention relates to a packaging container with ventilation channels, in particular for gas-generating food products, and to a method for packaging products, in particular gas-generating food products, in these packaging containers.
  • the invention also relates to the use of these packaging containers.
  • Packaging containers with ventilation systems are well known in the art. They are used to store various products, such as fresh food.
  • the ventilation systems ensure pressure equalization in the container so that released gases can escape and the ingress of oxygen is prevented.
  • the packaging containers can be vented using pressure relief valves, holes or membranes, for example.
  • the EP 2 150 118 (GENERAL MILLS MARKETING, INC. ) describes in this context a food packaging for dough.
  • the gases produced by the dough are vented from the inside of the packaging container to the outside, for example through holes, channels, valves or through osmotically permeable materials.
  • the venting means can be located on the side of the packaging cup or at the top of the packaging closure.
  • the ventilation solutions for packaging containers have proven to be unsatisfactory.
  • dirt particles or germs enter these and are transferred when the cup is touched, e.g. when consumers pick up the containers when filling them.
  • the contents of the packaging can easily reach the openings by tilting the container and either cover them or even block them.
  • the openings can also be closed if the packaging container is stored correctly, e.g. if fermentable packaging contents such as dough ferment strongly and expand in the container.
  • Ventilation solutions that are installed at the top of the packaging closure also prove to be inadequate.
  • Stacking such packaging containers on top of each other poses a high risk of contamination, as the packaging containers can carry dirt particles and/or germs on the bottom of the container and these can enter the interior of a container underneath via the ventilation opening.
  • stacking on top of each other hinders the ventilation of containers that are located lower down. This means that such containers should only be stored next to each other, which in turn requires more storage space or sales area.
  • the object of the invention is therefore to provide a solution which at least reduces the disadvantages present in the prior art.
  • a channel is understood to be a continuous, elongated depression in the sense of a groove.
  • the channel is not closed, but has an open upper long side along its entire length as long as the packaging closure is not attached or when the packaging closure has been removed.
  • the upper long side is the side of the channel facing away from the cup base.
  • the open long side of the channels is covered by the packaging closure.
  • the packaging closure seals the cup opening gas-tight at the top, i.e. in the direction opposite to the cup base. Gas that develops inside the packaging cup can only escape through the open front ends or the side openings of the channels when the packaging cup is closed with a packaging closure.
  • the material connection can be glued, soldered and/or welded.
  • the inlet openings of the channels are in a plane with the, preferably vertical, inner edge of the sealing edge.
  • the outlet openings of the channels are in a Level with the preferably vertical outer edge of the sealing edge.
  • the inlet openings are the open front ends of the channels in the interior of the packaging cup, while the outlet openings are the open front ends of the channels in the exterior of the packaging container.
  • the sealing rim completely surrounds the cup opening and forms its boundary.
  • the solution according to the invention ensures that the packaging contents do not reach the inner channel openings, i.e. the channel openings located inside the packaging container, when the packaging container is tilted. This prevents the inner channel openings from being covered or blocked by the packaging contents. This ensures continuous ventilation, even when the packaging container is moved or tilted, which often happens during transport or by the buyer or consumer.
  • Continuous venting guarantees hygienic storage of the packaging contents, especially foodstuffs. It also prevents the container from swelling and the packaging closure from bulging. The latter allows the packaging containers to be stored in a more space-saving manner, prevents the packaging closure from opening under excess pressure and prevents the consumer from being falsely led to believe that the packaging contents are inedible.
  • Packaging containers according to the invention are also inexpensive, quick and easy to manufacture, as they can be produced using injection molding, for example.
  • the present solution eliminates the need for complicated manufacturing methods in which Ventilation systems such as valves and/or holes must be installed, e.g. drilled, in side walls and/or lids.
  • the channel(s) can be designed in such a way that, at least during the period in which a product in the container produces gases, there is a constant overpressure in the interior of the packaging container and/or a clean room effect is achieved. Gases always flow from the interior of the packaging container through the channel(s) to the outside. This also helps to ensure that, for example, impurities and/or germs do not get into the interior of the packaging container from the outside against the gas flow.
  • the packaging container contains a gas-generating product, in particular a gas-generating food product.
  • a gas-generating product means in particular a product which releases a gas, in particular CO 2 , under the usual storage conditions for the product, e.g. at standard pressure (101'325 Pa) and/or a temperature of 1 - 30°C.
  • the packaging container contains a dough, in particular a pre-dough, sourdough or mother dough, in particular a dough with yeast or lactic acid bacteria.
  • a dough in particular a pre-dough, sourdough or mother dough, in particular a dough with yeast or lactic acid bacteria.
  • the packaging container it is also possible for the packaging container to contain other gas-generating food products, such as coffee, sauerkraut, kimchi, fresh ready meals, soy, fruit, vegetables, mushrooms and/or bread.
  • gas-generating household products such as cleaning agents and/or air fresheners.
  • the solution according to the invention has proven to be particularly advantageous as a packaging container for food and in particular for dough.
  • the packaging cup is made of a different material than the packaging closure.
  • the material of the closure can be quickly and easily adapted to the properties, e.g. the gas production rate of the product contained in the packaging container.
  • the properties e.g. the gas production rate of the product contained in the packaging container.
  • a more dimensionally stable material should be selected for the packaging closure. This means that the packaging container can be adapted quickly and inexpensively if the product line changes.
  • packaging cup and the packaging closure are made of the same material.
  • the packaging closure consists of a lid and/or a sealing film.
  • Lids are understood to be particularly solid packaging closures. In comparison to a lid, a film is more flexible. A lid can deform or even break under a certain force, while a film can bend under the same force and then automatically return to its original shape. Films are more elastic than lids. In certain designs, lids have a skirt all around for additional fastening to the packaging cup. Sealing films can be made as composite films or consist of monomaterial. Other names for sealing films in the above context are sealing plates, plates, lid films, plate films or films.
  • Lids offer the advantage that they can be produced using a deep-drawing process and/or can have aprons. Deep-drawn lids allow the packaging containers to be stored in a more space-saving manner. Lids with aprons can also be used as additional shielding of the external channel openings or outlet openings against dirt particles and/or germs without affecting gas exchange.
  • the lid has an apron which projects beyond and/or shields the outlet opening(s) of the at least one channel, in particular of all channels, in a direction from the cup opening to the cup bottom outside the cup jacket.
  • the skirt is spaced apart from the cup jacket. This allows the gas-permeable connection between the inside of the packaging cup and the outside to be maintained.
  • Sealing films require very little material to produce and are therefore resource-saving. In addition, the sealing process only takes a few seconds, which leads to greater efficiency and time savings.
  • the packaging closure is additionally connected to the sealing edge in a form-fitting and/or force-fitting manner.
  • An additional force-fit connection can save material, e.g. adhesive, in the manufacturing process. It is also conceivable that the packaging closure is connected to the sealing edge in a form-fitting manner. It can also be advantageous to combine the types of connection, which can lead to a more stable connection. The manufacturer is also flexible in using the most suitable connection technology depending on the product.
  • the packaging closure in particular the lid and/or the sealing film, is resealable.
  • a packaging closure in particular a lid and/or a sealing film, is reclosable if a material, force and/or positive connection can be restored between it and the sealing edge after the packaging container has been opened without the use of aids such as glue and/or adhesive tape.
  • the material, force and/or positive connection restored after opening can differ from the material, force and/or positive connection that existed before opening in that the restored connection is not necessarily gas-tight.
  • the resealability means that the product can continue to be stored in the packaging container after it has been opened. This saves the consumer from having to transfer the product to another container, which saves time and resources.
  • the packaging closure in particular the lid and/or the sealing film, can be used once.
  • a packaging closure in particular a lid and/or a sealing film, is for single use if, after opening the packaging container, a material, force and/or form-fitting connection can only be restored between it and the sealing edge by using aids such as adhesive or adhesive tape.
  • the one-time use of the packaging closure ensures that the consumer does not mistakenly interpret a previously opened packaging container as unopened. Otherwise there is a risk that the consumer will store or consume a lower quality or even an inedible product.
  • the packaging cup comprises or consists of plastic, in particular of one or more thermoplastics, in particular of polystyrene (PS), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) and/or polyvinyl chloride (PVC).
  • the packaging cup consists of at least 90% by weight, in particular at least 95% by weight, for example 100% by weight, based on the total weight of the packaging cup, of the one or more of the plastics mentioned.
  • the packaging closure in particular the sealing film, comprises or consists of plastic, in particular of one or more thermoplastics, in particular of polystyrene (PS), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) and/or polyvinyl chloride (PVC).
  • the packaging closure consists of at least 90% by weight, in particular at least 95% by weight, for example 100% by weight, based on the total weight of the packaging closure, of the one or more of the plastics mentioned.
  • the packaging cup and/or the packaging closure are made of other materials instead of plastics or contain plastics in combination with other materials.
  • Paper and/or cardboard can be used for dry products, for example. They offer a readily degradable and thus ecological alternative to plastics.
  • Biodegradable materials such as corn starch, sugar cane, potatoes, cellulose and/or wood also serve as compostable alternatives for the packaging cup and/or the packaging closure.
  • Plastics made from biomass can also be stable, transparent and/or heat-resistant, which is why they can also be used as packaging material, particularly for food products.
  • Metal, such as aluminium and/or steel, can also be used as packaging cups and/or packaging closures. They can be intended for packaging containers whose packaging cups and/or packaging closures have to withstand higher pressure. Glass can also be used for the same reasons. In addition, glass offers the possibility of a transparent packaging cup and/or packaging closure. This means that the product can be seen without having to open the packaging container and risking contamination.
  • Plastics are extremely suitable as a material for packaging cups and/or packaging closures because they have a low density, good weather and chemical resistance, good heat insulation, are resistant to water and are easy to clean.
  • plastics can be hard, flexible or elastic depending on the type of plastic. This offers a wide range of packaging material options, which can take into account different needs in terms of the storage of various products.
  • Thermoplastics are particularly suitable for the production of packaging cups and/or packaging closures because they can be hot-formed and welded. This has the advantage that the packaging cup can be sealed gas-tight, e.g. with a film.
  • Thermoplastics can also be produced inexpensively using injection molding. Due to their thermal properties, they can also be used very well in 3D printing.
  • Polystyrene (PS) is light, dimensionally stable, transparent and has a relatively high gas and water vapor permeability, which makes this type of plastic particularly suitable for food packaging.
  • Polyethylene (PE) is light, inexpensive, easy to form, has a high density against water vapor and fat, is cold-resistant, tasteless and and odorless and is easy to weld. This makes it an extremely suitable material for food packaging.
  • Polypropylene (PP) is very stable, has a low water vapor permeability, is very resistant to grease and heat, which makes it an ideal material for packaging cups and/or packaging closures that are exposed to a heat source, e.g. in a microwave. This is particularly advantageous for food packaging.
  • Polyethylene terephthalate is resistant to oils, fats and alcohols. It has a very low permeability to aromas, odors and gases and thus protects food in particular optimally from external influences.
  • Polyvinyl chloride (PVC) is also resistant to oils and alcohols, which is why it can also be used well in the food sector.
  • the types of plastic can also be combined with each other in order to adapt the material properties of the packaging cup and/or closure to the specific product.
  • the packaging cup has a cylindrical, truncated pyramid-shaped, cuboid-shaped or, preferably, truncated cone-shaped cavity at least in sections from the cup base towards the cup opening, in particular in the region of the cup jacket.
  • the packaging cup has, from the cup base towards the cup opening, at least in sections, in particular in the region of the cup jacket, a cylindrical, truncated pyramid-shaped, cuboid-shaped or, preferably, a truncated cone-shaped outer shape.
  • the cavity of the packaging cup has the same shape as the outer shape of the packaging cup.
  • the packaging closure in particular the lid and/or the sealing film, has an opening tab.
  • the opening tab allows the consumer to open the packaging container more easily and quickly.
  • the tab guide also reduces the risk of the lid and/or the sealing film being damaged by uncontrolled tearing.
  • the channels in the seal edge run along a straight line.
  • a straight channel path reduces the risk of dirt particles and/or germs accumulating within the channels, e.g. in corners and/or curves. This reduces the risk of contamination of the packaging contents.
  • the channels in the sealing edge are curved and/or angled at least in sections.
  • An angled section is a channel section that bends along its course at an angle of > 0° and ⁇ 180°, in particular > 45° and ⁇ 120°, and especially > 60° and ⁇ 100°.
  • a curved section is a section of a channel that has curves along its course.
  • all channels are identically shaped.
  • the channels can also be shaped differently from one another, e.g. some channels can be straight and others angled and yet others curved.
  • the ratio between the maximum width and the maximum height of a channel is between 1:3 and 2.5:3, in particular between 1.5:3 and 2.25:3, most preferably 2:3.
  • the maximum width of a channel is the length value at the widest point of the channel cross-sectional area.
  • the maximum height of a channel is the length value at the highest point of the channel cross-sectional area.
  • this ratio leads to optimal gas venting, so that the packaging container does not swell and the product is still preserved.
  • the gases produced inside the packaging escape from the headspace to the outside at such a rate that an overpressure remains in the packaging container for as long as possible. This ensures that the product has as long a shelf life as possible.
  • no dirt particles and/or germs get into the interior of the packaging container and do not accumulate in the anal ducts, since the escaping gas flow flows sufficiently quickly to prevent dirt particles and/or germs from entering.
  • this ratio of the channel width to the channel height means that the channel is deep enough so that the channels are not blocked by the packaging closure when closed, i.e. after sealing with the packaging closure.
  • the ratio can also be 1.5:3, since the positive effects have also been shown under this ratio.
  • the packaging container has a volume between 5 cm 3 - 1000 cm 3 , in particular between 70 cm 3 - 700 cm 3 and/or a total longitudinal cross-sectional area of 7 ⁇ 10 -5 cm 2 - 3 ⁇ 10 -2 cm 2 , in particular of 1 ⁇ 10 -3 cm 2 - 2 ⁇ 10 -2 cm 2 .
  • the packaging container has a volume between 150 cm 3 - 400 cm 3 , in particular between 200 cm 3 - 320 cm 3 , in particular 203 cm 3 or 315 cm 3 , and/or a total longitudinal cross-sectional area of 2 ⁇ 10 -3 cm 2 - 1 ⁇ 10 -2 cm 2 , in particular 3 ⁇ 10 -3 cm 2 - 8 ⁇ 10 -3 cm 2 , in particular 3.1 ⁇ 10 -3 cm 2 , 4.8 ⁇ 10 -3 cm 2 or 7.5 ⁇ 10 -3 cm 2 .
  • the total cross-sectional area is the sum of the cross-sectional areas of all channels present on the packaging container.
  • the ratio between the volume of the packaging container and the total cross-sectional area of the channels is between 2.5 ⁇ 10 4 cm - 8.5 ⁇ 10 4 cm, in particular between 3 ⁇ 10 4 cm - 8 ⁇ 10 4 cm, in particular between 3.5 ⁇ 10 4 cm - 7.5 ⁇ 10 4 cm, especially special between 4 ⁇ 10 4 cm - 7 ⁇ 10 4 cm, even more special at 4.2 ⁇ 10 4 cm or 6.6 ⁇ 10 4 cm.
  • the ratio of the value of the volume of the packaging container, expressed in cm 3 , to the value of the total longitudinal cross-sectional area, expressed in cm 2 is between 2.5 ⁇ 10 4 - 8.5 ⁇ 10 4 , in particular between 3 ⁇ 10 4 - 8 ⁇ 10 4 , especially between 3.5 ⁇ 10 4 - 7.5 ⁇ 10 4 , particularly between 4 ⁇ 10 4 - 7 ⁇ 10 4 , even more particularly at 4.2 ⁇ 10 4 or 6.6 ⁇ 10 4 .
  • the volume of the packaging container is ideally suited for storing gas-generating food products, particularly dough, due to the consumer-friendly size of the packaging container.
  • the volume according to the invention and the total cross-sectional area are coordinated in such a way that optimal gas venting takes place, so that the packaging container does not swell and the product is nevertheless preserved.
  • the cross-sectional area of a channel remains constant over its entire length.
  • the cross-sectional area it is also possible for the cross-sectional area to vary over the length of the channel.
  • the ratio of the maximum width to the length of a channel is between 1:5 and 1:25, in particular between 1:7 and 1:22. In a particularly preferred embodiment, the ratio is, for example, 1:22, 1:11 or 1:7. In the case of a plurality of channels, these can also have different ratios from one another.
  • the length of a channel is the distance between the two end channel openings.
  • the sealing edge has at least 2, in particular 2 - 50, especially 2 - 25, most preferably 8, channels.
  • This ratio has been found to result in optimum gas venting, preventing the packaging container from swelling and allowing the product to be preserved for a longer period of time.
  • the number of channels also has the effect of allowing the overpressure in the packaging cup to be controlled.
  • the channels are preferably evenly distributed over the entire sealing edge. If the outer channel openings are inadvertently covered, e.g. if an object is placed next to the packaging container and directly in front of the outer channel openings, gas can still flow out via the other channels.
  • an overpressure is present in the packaging container for at least 30 - 65 days, in particular for at least 35 - 60 days, preferably for at least 40 - 55 days, particularly preferably for at least 45 - 50 days, from the time the packaging container is closed. This can be achieved as described below.
  • Overpressure has the effect that the gas generated inside the packaging is permanently vented to the outside due to pressure equalization.
  • the overpressure inside the packaging container also prevents contaminated outside air from entering or the penetration of dirt particles and/or germs. This increases the shelf life of the product, especially food products.
  • the ratio between the maximum width and the maximum height of a channel, the ratio between the maximum width and the length of a channel and/or the number of channels also have the effect that the overpressure in the packaging cup can be controlled.
  • the number, dimensions and/or cross-sectional areas of the channels are adapted to the amount of gas produced by the product in the packaging container, in particular by a food product, so that an overpressure is present in the packaging container. This is particularly the case as long as the product in the packaging container produces gas.
  • the manufacturer can react quickly to a change in the product line and adapt the manufacturing process. This saves time and increases efficiency.
  • Swollen packaging usually signals to the consumer that the products contained therein are no longer edible or should no longer be used. This is particularly problematic with yeast-containing products, which generate gases due to fermentation processes, as the consumer would be led to believe that the dough is inedible if the packaging is swollen.
  • the inventive dimensioning of the channels means that, due to the prevailing overpressure inside the packaging container and the natural pressure equalization, enough gas is vented from the inside of the packaging container to the outside so that the packaging container does not swell. This counteracts potential assumptions by buyers or consumers that the product is inedible.
  • the packaging container ensures a sustained overpressure and thus ventilation over a period of at least 30 - 65 days, in particular for at least 35 - 60 days, preferably for at least 40 - 55 days, particularly preferably for at least 45 - 50 days, thus ensuring preservation of the product is ensured, as no contaminated outside air can penetrate into the packaging container.
  • the ventilation also prevents the product, especially a dough product, from drying out on the surface and forming an unsightly skin, which could deter buyers from making a purchase.
  • the inner diameter of the sealing edge is larger than the outer diameter of the cup bottom.
  • the surface of the sealing edge is smooth and/or flat.
  • a smooth sealing edge has the effect of minimizing the inclusion of air during the bonding process by ensuring that the surface to be bonded is as rough as possible. This improves the adhesive strength between the sealing edge and the packaging closure.
  • a flat sealing edge also makes production easier. Furthermore, less material is required than with uneven sealing edges.
  • the packaging cup is produced in process step 1) by injection molding.
  • Production using the injection molding process offers the advantage that any shape and wall thickness can be produced, so that the packaging cup can be adapted to suit the product. This is particularly advantageous in relation to food packaging, as the requirements for the packaging can vary with regard to various product parameters such as shelf life, fermentation processes and/or flavorings.
  • the invention relates to the use of a packaging container according to the invention for packaging a gas-generating product, preferably a gas-generating food product, in particular a dough.
  • Fig.1 shows a schematic perspective view of a packaging cup 1 according to the invention with a cup base 2, a cup jacket 3, a sealing edge 5 formed on the cup jacket and a cup opening 4 opposite the cup base.
  • Channels 6 are introduced into the upper side of the sealing edge 5 on the opening side.
  • the channels run straight or curved.
  • Fig.2 shows a section of the seal edge 5 of the Fig.1 shown packaging cup 1.
  • the channels 6 introduced on the opening-side top side of the sealing edge 5 are open along their entire length on their top side.
  • the inner channel openings 7 lie in a plane with the vertically running inner edge of the sealing edge 5.
  • the outer channel openings 11 lie in a plane with the vertically running outer edge of the sealing edge 5.
  • Fig.3 shows a section of the seal edge 5 of the Fig.1 shown packaging cup 1 including a packaging closure 8.
  • the packaging closure 8 is materially connected to the upper side of the sealing edge 5 opposite the cup base 2 and covers or closes the cup opening 4 and the open long sides of the channels 6. The inner 7 and the outer 11 channel openings are not closed.
  • Fig.4 shows a schematic perspective view of a packaging container 9 according to the invention consisting of a packaging cup 1, as shown in Fig.1 described, and a packaging closure 8, which has an opening tab 10.
  • the opening tab 10 is attached in such a way that it extends over the outer diameter of the sealing edge 5 so that it is easy to grip.
  • the packaging container 9 is materially connected to a packaging closure 8, here with a sealing film.
  • channels 6 in Fig. 1 - 4 all run straight. Alternatively, they can all run curved or angled. Combinations of straight, angled and/or curved channel shapes are also possible.
  • the volume flow of the gas can be controlled by the different design of the channels 6.
  • the number of channels 6 can vary and there can be fewer or more channels 6 than in Fig.1 and Fig.4 shown must be present.
  • the packaging closure 8 shown can also be a lid, eg a deep-drawn lid. It is also possible for the packaging closure to have an opening means other than an opening tab 10. Alternatively, there can be a predetermined tear point 10, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
EP23159466.4A 2023-03-01 2023-03-01 Récipient d'emballage avec système de ventilation Pending EP4385911A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23159466.4A EP4385911A1 (fr) 2023-03-01 2023-03-01 Récipient d'emballage avec système de ventilation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23159466.4A EP4385911A1 (fr) 2023-03-01 2023-03-01 Récipient d'emballage avec système de ventilation

Publications (1)

Publication Number Publication Date
EP4385911A1 true EP4385911A1 (fr) 2024-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP23159466.4A Pending EP4385911A1 (fr) 2023-03-01 2023-03-01 Récipient d'emballage avec système de ventilation

Country Status (1)

Country Link
EP (1) EP4385911A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11152166A (ja) * 1997-11-19 1999-06-08 Dainippon Printing Co Ltd 包装用容器
KR20030000745A (ko) * 2001-06-27 2003-01-06 주식회사 두산 식품 포장 용기
WO2008008804A2 (fr) * 2006-07-11 2008-01-17 General Mills Marketing, Inc. Produit à base de pâte et emballage aéré
US20090181135A1 (en) * 2008-01-11 2009-07-16 Domingues David J Dough and dough product packaging configurations
EP2150118A1 (fr) 2007-05-11 2010-02-10 General Mills Marketing, Inc. Emballage de pâte à basse pression

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11152166A (ja) * 1997-11-19 1999-06-08 Dainippon Printing Co Ltd 包装用容器
KR20030000745A (ko) * 2001-06-27 2003-01-06 주식회사 두산 식품 포장 용기
WO2008008804A2 (fr) * 2006-07-11 2008-01-17 General Mills Marketing, Inc. Produit à base de pâte et emballage aéré
EP2150118A1 (fr) 2007-05-11 2010-02-10 General Mills Marketing, Inc. Emballage de pâte à basse pression
US20090181135A1 (en) * 2008-01-11 2009-07-16 Domingues David J Dough and dough product packaging configurations

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