EP1006056A1 - Container for foodstuff and medicaments which is easy to open and reclosable - Google Patents
Container for foodstuff and medicaments which is easy to open and reclosable Download PDFInfo
- Publication number
- EP1006056A1 EP1006056A1 EP98490032A EP98490032A EP1006056A1 EP 1006056 A1 EP1006056 A1 EP 1006056A1 EP 98490032 A EP98490032 A EP 98490032A EP 98490032 A EP98490032 A EP 98490032A EP 1006056 A1 EP1006056 A1 EP 1006056A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- packaging
- tray
- layer
- pasty
- solid
- 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.)
- Granted
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Classifications
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- 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
- B65D77/2068—Means for reclosing the cover after its first opening
- B65D77/2096—Adhesive means
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- 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
- B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
- B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
- B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
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- 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
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/10—Container closures formed after filling
- B65D2577/20—Container closures formed after filling by applying separate lids or covers
- B65D2577/2025—Multi-layered container, e.g. laminated, coated
- B65D2577/2033—Multi-layered container, e.g. laminated, coated with one or more layers of container being torn off upon initial opening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
Definitions
- the invention relates to a packaging for the packaging of solid, liquid or pasty food products such as dairy products, cold meats and meats, and medical products.
- packaging for products solid or pasty food. They consist for example of a tray and a cover also called a cover, made from a thermoformable film, suitable for contact food.
- the tray is made by thermoforming from a rigid film or flexible plastic such as PVC or polyester or other.
- the weld bead is torn off from the weldable layer and remains integral with the tray.
- the adhesive layer is then discovered on the cover at the weld bead. This authorizes the reclosing of the packaging after the first use and therefore allows the product to be consumed several quantities, for several days or several hours.
- the adhesive layer being located before the protective layer to oxygen, the "chimneys" eliminate all efficiency and all the properties of the layer oxygen barrier. This therefore means that solid or pasty food products become perishable before their first consumption and the expiration date consumption of solid or pasty food products cannot be given precisely.
- the present invention overcomes these disadvantages and one of its aims main is to present a packaging for the packaging of food products the manufacture of which allows the neutral preservative gas to be kept perfectly inside packaging, and therefore to guarantee precisely the shelf life of the product before first use, and therefore before the food consumption deadline.
- Another object of the present invention is to enclose the product food, solid or pasty type, inside a pocket to keep the product packed in its entirety and without any deterioration thereof.
- Another aim is to no longer involve the disadvantages due to "chimneys" on the adhesive layer which let out the preservative neutral gas and penetrate oxygen. Indeed, in the present invention, the "chimneys" on the layer adhesive no longer open into the pocket which then remains waterproof and impermeable.
- Another aim is to carry out the packaging without any modification of the automatic thermoforming machines on the market, the manufacturing process packaging and packaging of the food product being identical to that existing currently.
- Another object of the present invention is to present a packaging with easy opening and closing of the lid on the tray, which saves the use of protective films to preserve the product when it is not consumed entirely on first use.
- the resealing of the packaging also to maintain the odors of the food product in the packaging, and not to spread in the refrigerator.
- the present invention relates to a packaging (1) for the packaging of solid or pasty food products (19) such as dairy products, cold meats or meats. It will find its application in particular in the manufacturing industries packaging and packaging of food and medical products which will then be made available to consumers in commercial areas or pharmacies. It can be used for other hardware type products.
- solid or pasty food products such as dairy products, cold meats or meats.
- FIG 1 shows the packaging (1) of food products (19).
- the packaging (1) consists of a tray (2) and a cover (3), also called cover, these two elements being assembled by a weld (4).
- the welding (4) of cover (3) is made over the entire periphery of the tray (2) as shown in the figure 4.
- the outer support layer (5) is produced, in a mode of preferred but non-limiting embodiment, in an amorphous polyester with a thickness which can vary from ten to five hundred micrometers or more depending on stiffness, strength, or flexibility of the tray (2) that one wishes to obtain.
- materials such as PVC, polypro, polyethyrene, expanded polyester, polyamide,
- the intermediate adhesive layer (6) is produced by means of a resin adhesive or another material of the thermoplastic synthetic type. She should have a almost permanent adhesive effect to present bonding properties allowing opening and close the lid several times when consuming the product in several quantities. Its thickness will preferably be fifteen to twenty micrometers to ensure the bonding properties with permanent effect, and ensuring the connection between the welding layer (7) inner and the outer support layer (5).
- the inner welding layer (7) is produced by means of a polyethylene preferably composed of five layers (9, 10, 11, 12 and 13), shown schematically at Figure 2, the total thickness of which is greater than twenty five micrometers. She must have good weldability and fusion with another weldable layer as well nature. It must have a sufficiently wide range of weldability and fusion to accept variations in temperature and pressure.
- the cover (3) of the package (1) is of the same type and structure identical to the sealing layer (7) of the tray (2). It is preferably composed of five layers (14, 15, 16, 17 and 18), shown schematically in Figure 2, in polyethylene of thickness greater than thirty micrometers and these characteristics must be identical to those of the welding layer. It should have good dimensional characteristics allowing it to support the printing of ink and text or image representative of the solid or pasty food product (19) contained in the package (1).
- thermoformable structure of the tray (2) is produced, by example, by hot applying the adhesive layer (6) with a permanent effect of synthetic type thermoformable on the support layer (5) of amorphous polyester by a process of coating carried out at a temperature of approximately 160 ° C., then by rolling on this adhesive layer (6) of the welding layer (7) of polyethylene.
- the assembly is then wound up so as to form a reel ready for cutting for the thermoforming packaging machine.
- thermoformable structure Another technique, used to make the thermoformable structure, consists in hot extruding the adhesive resin, constituting the adhesive layer (6), between the support layer (5) and the welding layer (7).
- the structure is for example preheated to a temperature of 100 to 120 ° C for a duration of about two seconds, then it is formed on air impressions and suction to obtain the container (2).
- the tray (2) is filled with the food product or medical device (19) and inject a neutral gas suitable for preserving the product before closing the tray (2) by the cover (3) by welding at 160 ° C for a period 1.5 seconds at a pressure of 2.5 bars on the periphery of the tray (2) by a cord of welding (4) with a width L of 4 to 8 mm.
- the welding is carried out between the welding layer constituting the cover (3) and the sealing layer (7) of the tray (2).
- the packaging (1) then has a pocket (8) waterproof and oxygen or gas tight.
- This pocket (8) is delimited by the welding layer of the cover (3), the sealing layer (7) of the tray (2), and the weld bead (4) on the entire periphery of the packaging (1). It therefore contains the food or medical product (19) and the neutral gas suitable for preserving the product.
- the welding layer constituting the cover (3) and the welding layer (7) are preferably composed of five layers (14, 15, 16, 17 18) respectively (9, 10, 11, 12, 13), the layers (11 and 16) being high barrier layers to oxygen.
- the pocket is obtained by the connection and the combination of the high film barrier on the cover (3), high barrier film on the welding layer (7) and the bead welding (4), which ensures its sealing and impermeability function. Neutral gas therefore remains contained in the pocket which prevents, at the same time, the penetration of oxygen.
- the permeability to oxygen or to gas that is to say the quantity of oxygen entering the packaging or the quantity of neutral gas escaping from the packaging, will be at most 5 cm 3. m 2/24 hours.
- the manufacturer can accurately determine the deadline consumption of the product (19) and ensuring the quality of food products (19) distributed in commercial areas.
- the cover (3) and the sealing layer (7) must be made up of minus three layers of which the central layer, in a preferred embodiment, will be the film high oxygen barrier.
- thermoforming machines undergo variations in temperature and pressure.
- these variations created on the adhesive layer "chimneys” (21) in the radial direction of the tray (2) which allow oxygen to enter the packaging (1) and escape the preservative neutral gas.
- These "chimneys” (21) on the adhesive layer (6) still exist, but these are located on the adhesive layer (6) outside the sealed pocket (8) comprising a film high oxygen barrier. In this way, the "chimneys” (21) have no disadvantages on the packaging (1) since they do not open into the pocket (8)
- the neutral gas is correctly stored inside the pocket (8) hermetic, without any penetration of oxygen therein. So the quality of solid, liquid or pasty, or medical food products (19) is therefore preserved until their expiration date.
- the consumer When the packaging (1) is first opened for consumption solid or pasty food product (19), the consumer, by exerting an effort sufficiently large, detach the weld bead (4) from the tray (2) at least on part of the periphery of the packaging (1) and separates the cover (3) from the tray (2), as shown in figure 3.
- the consumer has on the packaging (1) a tongue (20) produced on the cover (3) which promotes better grip for pull the cover (3) and detach it from the tray (2), as shown in figure 4.
- the consumer releases the layer adhesive (6) with permanent effect at the weld bead (4) over the entire periphery of the packaging (1), and it opens the pocket (8) which then loses its sealing characteristics and waterproofing.
- the solid or pasty food product (19) is then in contact with oxygen, and the preservative neutral gas is no longer effective.
- the consumer must therefore consume the food product (19) within a few days after which it will have lost its quality, flavor, and will be perishable.
- the part of the adhesive layer (6), released on the periphery of the package (1) has a width L equal to that of the weld bead (4). Its width L will be in a preferred mode of four to eight millimeters. So the consumer can close the lid (3) several times on the tray (2) thanks to the permanent effect of the adhesive layer (6). Reclosing the packaging (1) therefore maintains the share of the product food (19) remaining protected from moisture in the refrigerator, and also prevents spread odors from the product (19) in the refrigerator.
- the resistance of the weld bead (4) on the cover (2) must be greater than that on the tray (2). That is to say, we must favor the tearing of the weld bead (4) at the level of the tray (2).
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- Mechanical Engineering (AREA)
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Abstract
Description
L'invention est relative à un emballage pour le conditionnement de produits alimentaires solides, liquides ou pâteux tels que les produits laitiers, la charcuterie et les viandes, et de produits médicaux.The invention relates to a packaging for the packaging of solid, liquid or pasty food products such as dairy products, cold meats and meats, and medical products.
Elle trouvera son application dans les industries de fabrication de films alimentaires, d'emballages, et de conditionnement de produits alimentaires qui seront ensuite mis à la disposition des consommateurs dans les magasins.It will find its application in the film manufacturing industries food, packaging, and packaging of food products that will then made available to consumers in stores.
De longue date, on connaít l'utilisation des emballages pour les produits alimentaires solides ou pâteux. Ils sont constitués par exemple d'une barquette et d'un couvercle encore appelé opercule, réalisé à partir d'un film thermoformable, apte au contact alimentaire.For a long time, we know the use of packaging for products solid or pasty food. They consist for example of a tray and a cover also called a cover, made from a thermoformable film, suitable for contact food.
Le conditionnement des produits alimentaires peut s'effectuer selon les
étapes suivantes:
Lors de l'ouverture de l'emballage au moment de la consommation du produit alimentaire, la soudure est rompue par l'utilisateur, et le couvercle se détache de la barquette. Il est alors impossible de refermer le couvercle sur la barquette, ce qui oblige l'utilisateur à soit consommer le produit en une seule fois, soit utiliser un film protecteur pour conserver le produit dans un bon état de fraícheur ou éviter que les odeurs du produit ne se répandent dans le réfrigérateur.When opening the packaging when consuming the food product, the seal is broken by the user, and the cover comes off the tray. It is then impossible to close the lid on the tray, which requires the user to either consume the product at once, or use a protective film to keep the product in a good state of freshness or to prevent odors from the product do not spill in the refrigerator.
Il est connu dans l'état de la technique de réaliser des emballages pour produits alimentaires, munis d'un dispositif de refermeture du couvercle sur la barquette.It is known in the state of the art to produce packaging for food products, fitted with a device for closing the lid on the tray.
La barquette est réalisée en thermoformage à partir d'un film rigide ou souple en plastique du type PVC ou polyester ou autre.The tray is made by thermoforming from a rigid film or flexible plastic such as PVC or polyester or other.
Le couvercle aujourd'hui utilisé sur le marché est fabriqué à partir d'un film constitué de trois couches :
- une couche soudante intérieure, soudée suivant un cordon contre le bord de l'ouverture de la barquette,
- une couche extérieure qui constitue à la fois l'élément rigide du couvercle et une protection à l'oxygène pour la conservation de l'aliment,
- une couche adhésive intermédiaire à effet permanent.
- an inner sealing layer, welded along a bead against the edge of the opening of the tray,
- an outer layer which constitutes both the rigid element of the cover and an oxygen protection for the preservation of the food,
- an intermediate adhesive layer with a permanent effect.
Lors de la première utilisation, le cordon de soudure s'arrache de la couche soudante et reste solidaire de la barquette. La couche adhésive est alors découverte sur le couvercle au niveau du cordon de soudure. Ceci autorise la refermeture de l'emballage après la première utilisation et donc permet de consommer le produit en plusieurs quantités, pendant plusieurs jours ou plusieurs heures.During the first use, the weld bead is torn off from the weldable layer and remains integral with the tray. The adhesive layer is then discovered on the cover at the weld bead. This authorizes the reclosing of the packaging after the first use and therefore allows the product to be consumed several quantities, for several days or several hours.
Lors de l'opération de soudage du couvercle sur la barquette, on a constaté la création des "cheminées" sur la couche adhésive qui laissent s'échapper le gaz neutre pour la conservation du produit alimentaire, et laissent pénétrer l'oxygène dans l'emballage ce qui oxyde les aliments et diminue leur durée de conservation.During the welding operation of the lid on the tray, it has noted the creation of "chimneys" on the adhesive layer which let escape the gas neutral for the preservation of the food product, and allow oxygen to enter packaging which oxidizes food and shortens its shelf life.
En effet, la couche adhésive étant située avant la couche de protection à l'oxygène, les "cheminées" éliminent toute efficacité et toutes les propriétés de la couche barrière à l'oxygène. Cela entraíne donc que les produits alimentaires solides ou pâteux deviennent périssables avant leur première consommation et que la date limite de consommation des produits alimentaires solides ou pâteux ne peut pas être donnée précisément.Indeed, the adhesive layer being located before the protective layer to oxygen, the "chimneys" eliminate all efficiency and all the properties of the layer oxygen barrier. This therefore means that solid or pasty food products become perishable before their first consumption and the expiration date consumption of solid or pasty food products cannot be given precisely.
Ces "cheminées" sont créées sur l'emballage lors de la soudure du couvercle sur la barquette, car des variations de température des machines à thermoformer et des pressions de soudure sont trop élevées ou trop faibles.These "chimneys" are created on the packaging during the welding of the lid on the tray, because of temperature variations in thermoforming machines and welding pressures are too high or too low.
La présente invention remédie à ces inconvénients et un de ses buts principal est de présenter un emballage pour le conditionnement de produits alimentaires dont la fabrication permet de maintenir parfaitement le gaz neutre conservateur à l'intérieur de l'emballage, et donc de garantir avec précision la durée de vie du produit avant la première utilisation, et donc avant la date limite de consommation des aliments.The present invention overcomes these disadvantages and one of its aims main is to present a packaging for the packaging of food products the manufacture of which allows the neutral preservative gas to be kept perfectly inside packaging, and therefore to guarantee precisely the shelf life of the product before first use, and therefore before the food consumption deadline.
Un autre but de la présente invention est d'enfermer le produit alimentaire, du type solide ou pâteux, à l'intérieur d'une poche permettant de conserver le produit emballé dans toute son intégralité et sans aucune détérioration de celui-ci.Another object of the present invention is to enclose the product food, solid or pasty type, inside a pocket to keep the product packed in its entirety and without any deterioration thereof.
Un autre but est de ne plus faire intervenir les inconvénients dus aux "cheminées" sur la couche adhésive qui laissent s'échapper le gaz neutre conservateur et pénétrer l'oxygène. En effet, dans la présente invention, les "cheminées" sur la couche adhésive ne débouchent plus dans la poche qui reste alors étanche et imperméable.Another aim is to no longer involve the disadvantages due to "chimneys" on the adhesive layer which let out the preservative neutral gas and penetrate oxygen. Indeed, in the present invention, the "chimneys" on the layer adhesive no longer open into the pocket which then remains waterproof and impermeable.
Ainsi on dispose de plus de souplesse lors de l'utilisation des machines à thermoformer. En effet, les variations de température et de pression de soudure n'ont plus autant d'importance et de conséquence, et les machines ne nécessitent donc plus des régulations en température et en pression aussi strictes qu'avant. Ceci a pour but de simplifier la technologie utilisée pour la commande en régulation, et donc de réduire son coût.So we have more flexibility when using machines to thermoform. Indeed, variations in temperature and welding pressure no longer have as much importance and consequence, and machines no longer require temperature and pressure regulations as strict as before. This is intended to simplify the technology used for regulation control, and therefore reduce its cost.
Un autre but est de réaliser l'emballage sans aucune modification des machines à thermoformer automatiques existant sur le marché, le processus de fabrication de l'emballage et du conditionnement du produit alimentaire étant identique à celui existant actuellement.Another aim is to carry out the packaging without any modification of the automatic thermoforming machines on the market, the manufacturing process packaging and packaging of the food product being identical to that existing currently.
Un autre but de la présente invention est de présenter un emballage avec ouverture facile et refermeture du couvercle sur la barquette, ce qui permet d'économiser l'utilisation de films protecteurs pour conserver le produit lorsque celui-ci n'est pas consommé entièrement à la première utilisation. La refermeture de l'emballage a également pour effet de maintenir les odeurs du produit alimentaire dans l'emballage, et de ne pas les répandre dans le réfrigérateur.Another object of the present invention is to present a packaging with easy opening and closing of the lid on the tray, which saves the use of protective films to preserve the product when it is not consumed entirely on first use. The resealing of the packaging also to maintain the odors of the food product in the packaging, and not to spread in the refrigerator.
D'autres buts et avantages de la présente invention apparaítront au cours de la description suivante qui n'est cependant donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the present invention will become apparent during of the following description which is however only given as an indication and which is not intended aim to limit it.
Emballage (1) pour le conditionnement des produits alimentaires tels que les produits laitiers, la charcuterie et les viandes et le conditionnement de produits médicaux, permettant l'ouverture facile et la refermeture d'un couvercle sur l'emballage, qui se compose:
- d'une barquette (2) rigide ou souple, utilisant une structure
thermoformable constituée:
- d'une couche support (5) extérieure de polyester amorphe, ou autre,
- d'une couche adhésive (6) intermédiaire à effet permanent,
- d'une couche soudante (7) intérieure de polyéthylène,
- d'un couvercle (3) constitué d'une couche soudante en polyéthylène, ou
d'une structure thermoformable semblable à celle à la barquette (2),
caractérisé par le fait que l'emballage (1) présente une poche (8) imperméable étanche, qui reçoit le produit alimentaire, délimitée par : - la couche soudante (7) de la barquette (2),
- la couche soudante constituant le couvercle (3),
- le cordon de soudure (4),
- a rigid or flexible container (2), using a thermoformable structure consisting of:
- an outer support layer (5) of amorphous polyester, or the like,
- a permanent effect intermediate adhesive layer (6),
- an inner welding layer (7) of polyethylene,
- a cover (3) consisting of a welding layer of polyethylene, or a thermoformable structure similar to that of the tray (2),
characterized by the fact that the packaging (1) has a waterproof impermeable pocket (8) which receives the food product, delimited by: - the sealing layer (7) of the tray (2),
- the welding layer constituting the cover (3),
- the weld bead (4),
L'invention sera mieux comprise à la lecture de la description suivante, accompagnée des dessins en annexe, parmi lesquels :
- la figure 1, en vue de coupe transversale fortement agrandie, schématise l'emballage (1) pour les produits alimentaires solides ou pâteux (19) avant sa première utilisation,
- la figure 2 représente une vue de coupe détaillée de la constitution des couches soudantes et la soudure de ces éléments,
- la figure 3 schématise, en vue de coupe avec une partie réduite, l'emballage (1) après la première ouverture du couvercle (3),
- la figure 4 schématise l'emballage (1) en vue de dessus.
- FIG. 1, in a greatly enlarged cross-section view, shows diagrammatically the packaging (1) for solid or pasty food products (19) before its first use,
- FIG. 2 represents a detailed sectional view of the constitution of the welding layers and the welding of these elements,
- FIG. 3 shows diagrammatically, in section view with a reduced part, the packaging (1) after the first opening of the cover (3),
- Figure 4 shows schematically the packaging (1) in top view.
La présente invention vise un emballage (1) pour le conditionnement de produits alimentaires solides ou pâteux (19) tels que les produits laitiers, la charcuterie ou les viandes. Elle trouvera notamment son application dans les industries de fabrication d'emballages et de conditionnement de produits alimentaires et médical qui seront ensuite mis à la disposition des consommateurs dans les surfaces commerciales ou les pharmacies. Elle pourra âtre utilisée pour d'autres produits de type quincaillerie.The present invention relates to a packaging (1) for the packaging of solid or pasty food products (19) such as dairy products, cold meats or meats. It will find its application in particular in the manufacturing industries packaging and packaging of food and medical products which will then be made available to consumers in commercial areas or pharmacies. It can be used for other hardware type products.
La figure 1 présente l'emballage (1) de produits alimentaires (19). L'emballage (1) est constitué d'une barquette (2) et d'un couvercle (3), encore appelé opercule, ces deux éléments étant assemblés par une soudure (4). La soudure (4) du couvercle (3) s'effectue sur toute la périphérie de la barquette (2) comme le montre la figure 4.Figure 1 shows the packaging (1) of food products (19). The packaging (1) consists of a tray (2) and a cover (3), also called cover, these two elements being assembled by a weld (4). The welding (4) of cover (3) is made over the entire periphery of the tray (2) as shown in the figure 4.
La barquette (2) est réalisée au moyen d'une structure thermoformable sous la forme de film. Le film est composé par exemple d'au moins trois couches :
- une couche support (5) extérieure,
- une couche adhésive (6) intermédiaire,
- une couche soudante (7) intérieure qui sera en contact avec le produit alimentaire.
- an outer support layer (5),
- an intermediate adhesive layer (6),
- an inner sealing layer (7) which will be in contact with the food product.
La couche support (5) extérieure est réalisée, dans un mode de réalisation préféré mais non limitatif, dans un polyester amorphe d'une épaisseur pouvant varier de dix à cinq cents micromètres ou plus suivant la rigidité, la résistance, ou la souplesse de la barquette (2) que l'on souhaite obtenir.The outer support layer (5) is produced, in a mode of preferred but non-limiting embodiment, in an amorphous polyester with a thickness which can vary from ten to five hundred micrometers or more depending on stiffness, strength, or flexibility of the tray (2) that one wishes to obtain.
Dans un autre mode de réalisation, elle pourra être réalisée dans des matières telles que les PVC, polypro, polyéthyrène, polyester expansé, polyamide,In another embodiment, it can be carried out in materials such as PVC, polypro, polyethyrene, expanded polyester, polyamide,
polycarbonate ou polystyrène. La couche adhésive (6) intermédiaire est réalisée au moyen d'une résine adhésive ou d'une autre matière de type synthétique thermoplastique. Elle devra avoir un effet adhésif quasi permanent pour présenter des propriétés de collage permettant d'ouvrir et de refermer plusieurs fois le couvercle lors de la consommation du produit en plusieurs quantités. Son épaisseur sera de préférence de quinze à vingt micromètres pour assurer les propriétés de collage à effet permanent, et assurer la liaison entre la couche soudante (7) intérieure et la couche support (5) extérieure.polycarbonate or polystyrene. The intermediate adhesive layer (6) is produced by means of a resin adhesive or another material of the thermoplastic synthetic type. She should have a almost permanent adhesive effect to present bonding properties allowing opening and close the lid several times when consuming the product in several quantities. Its thickness will preferably be fifteen to twenty micrometers to ensure the bonding properties with permanent effect, and ensuring the connection between the welding layer (7) inner and the outer support layer (5).
La couche soudante (7) intérieure est réalisée au moyen d'un polyéthylène composé de préférence de cinq couches (9, 10, 11, 12 et 13), schématisées à la figure 2, dont l'épaisseur totale est supérieure à vingt cinq micromètres. Elle doit avoir une bonne aptitude au soudage et à la fusion avec une autre couche soudante de même nature. Elle doit avoir une plage d'aptitude à la soudure et à la fusion suffisamment large pour accepter des variations de température et de pression.The inner welding layer (7) is produced by means of a polyethylene preferably composed of five layers (9, 10, 11, 12 and 13), shown schematically at Figure 2, the total thickness of which is greater than twenty five micrometers. She must have good weldability and fusion with another weldable layer as well nature. It must have a sufficiently wide range of weldability and fusion to accept variations in temperature and pressure.
Le couvercle (3) de l'emballage (1) est de même nature et de structure identique à la couche soudante (7) de la barquette (2). Elle est composée de préférence de cinq couche (14, 15, 16, 17 et 18), schématisées à la figure 2, en polyéthylène d'une épaisseur supérieure à trente micromètres et ces caractéristiques doivent être identiques à celles de la couche soudante. Elle devra avoir de bonnes caractéristiques dimensionnelles lui permettant de supporter l'impression d'encre et de texte ou d'image représentative du produit alimentaire solide ou pâteux (19) contenu dans l'emballage (1).The cover (3) of the package (1) is of the same type and structure identical to the sealing layer (7) of the tray (2). It is preferably composed of five layers (14, 15, 16, 17 and 18), shown schematically in Figure 2, in polyethylene of thickness greater than thirty micrometers and these characteristics must be identical to those of the welding layer. It should have good dimensional characteristics allowing it to support the printing of ink and text or image representative of the solid or pasty food product (19) contained in the package (1).
La structure thermoformable de la barquette (2) est réalisée, par exemple, en déposant à chaud la couche adhésive (6) à effet permanent de type synthétique thermoformable sur la couche support (5) en polyester amorphe par un procédé de couchage effectué à une température de 160° C environ, puis en effectuant un laminage sur cette couche adhésive (6) de la couche soudante (7) de polyéthylène.The thermoformable structure of the tray (2) is produced, by example, by hot applying the adhesive layer (6) with a permanent effect of synthetic type thermoformable on the support layer (5) of amorphous polyester by a process of coating carried out at a temperature of approximately 160 ° C., then by rolling on this adhesive layer (6) of the welding layer (7) of polyethylene.
L'ensemble est ensuite enroulé de façon à former une bobine prête à la découpe pour la machine de conditionnement par thermoformage. The assembly is then wound up so as to form a reel ready for cutting for the thermoforming packaging machine.
Une autre technique, utilisée pour réaliser la structure thermoformable, consiste à extruder à chaud la résine adhésive, constituant la couche adhésive (6), entre la couche support (5) et la couche soudante (7).Another technique, used to make the thermoformable structure, consists in hot extruding the adhesive resin, constituting the adhesive layer (6), between the support layer (5) and the welding layer (7).
Pour la fabrication de l'emballage (1) et le conditionnement du produit (19), la structure est par exemple préchauffée à une température de 100 à 120° C pendant une durée de deux secondes environ, puis elle est formée sur des empreintes par air et aspiration pour obtenir la barquette (2).For the manufacture of the packaging (1) and the packaging of the product (19), the structure is for example preheated to a temperature of 100 to 120 ° C for a duration of about two seconds, then it is formed on air impressions and suction to obtain the container (2).
Ensuite, on remplit la barquette (2) par le produit alimentaire ou médical (19) et on injecte un gaz neutre adapté à la conservation du produit avant de fermer la barquette (2) par le couvercle (3) en effectuant une soudure à 160° C pendant une durée de 1,5 seconde à une pression de 2,5 bars sur la périphérie de la barquette (2) par un cordon de soudure (4) d'une largeur L de 4 à 8 mm.Then, the tray (2) is filled with the food product or medical device (19) and inject a neutral gas suitable for preserving the product before closing the tray (2) by the cover (3) by welding at 160 ° C for a period 1.5 seconds at a pressure of 2.5 bars on the periphery of the tray (2) by a cord of welding (4) with a width L of 4 to 8 mm.
Les paramètres pouvant être modifiés suivant le type de machine à thermoformer utilisées, qui ne subissent aucune modification étant donné que le processus de fabrication de l'emballage reste identique à ceux existant auparavant pour les emballages traditionnels.Parameters which can be modified according to the type of machine thermoformer used, which do not undergo any modification since the process of packaging manufacturing remains identical to those existing previously for packaging traditional.
La soudure est réalisée entre la couche soudante constituant le couvercle (3) et la couche soudante (7) de la barquette (2).The welding is carried out between the welding layer constituting the cover (3) and the sealing layer (7) of the tray (2).
Etant donné les caractéristiques des deux couches soudantes, celles-ci fusionnent sur toute la périphérie de la barquette (2) et sur toute la largeur du cordon de soudure (4).Given the characteristics of the two welding layers, these merge over the entire periphery of the tray (2) and over the entire width of the bead solder (4).
L'emballage (1) présente alors une poche (8) imperméable à l'eau et étanche à l'oxygène ou au gaz. Cette poche (8) est délimitée par la couche soudante du couvercle (3), la couche soudante (7) de la barquette (2), et le cordon de soudure (4) sur toute la périphérie de l'emballage (1). Elle contient donc le produit alimentaire ou médical (19) et le gaz neutre adapté à la conservation du produit.The packaging (1) then has a pocket (8) waterproof and oxygen or gas tight. This pocket (8) is delimited by the welding layer of the cover (3), the sealing layer (7) of the tray (2), and the weld bead (4) on the entire periphery of the packaging (1). It therefore contains the food or medical product (19) and the neutral gas suitable for preserving the product.
La couche soudante constituant le couvercle (3) et la couche soudante (7) sont composées dans un mode préférentiel de cinq couches (14, 15, 16, 17 18) respectivement (9, 10, 11, 12, 13), les couches (11 et 16) étant des couches haute barrière à l'oxygène. Ainsi, la poche est obtenue par la liaison et la combinaison du film haute barrière sur le couvercle (3), du film haute barrière sur la couche soudante (7) et du cordon de soudure (4), ce qui lui assure sa fonction d'étanchéité et d'imperméabilité. Le gaz neutre reste donc contenu dans la poche qui empêche, par la même occasion, la pénétration de l'oxygène.The welding layer constituting the cover (3) and the welding layer (7) are preferably composed of five layers (14, 15, 16, 17 18) respectively (9, 10, 11, 12, 13), the layers (11 and 16) being high barrier layers to oxygen. Thus, the pocket is obtained by the connection and the combination of the high film barrier on the cover (3), high barrier film on the welding layer (7) and the bead welding (4), which ensures its sealing and impermeability function. Neutral gas therefore remains contained in the pocket which prevents, at the same time, the penetration of oxygen.
Ainsi, la perméabilité à l'oxygène ou au gaz, c'est-à-dire la quantité
d'oxygène pénétrant dans l'emballage ou la quantité de gaz neutre s'échappant de
l'emballage, sera au maximum de 5 cm3.m2/24 heures.Thus, the permeability to oxygen or to gas, that is to say the quantity of oxygen entering the packaging or the quantity of neutral gas escaping from the packaging, will be at most 5
De cette façon, le fabricant peut déterminer avec précision la date limite de consommation du produit (19) et assurer la qualité des produits alimentaires (19) distribués dans les surfaces commerciales.In this way, the manufacturer can accurately determine the deadline consumption of the product (19) and ensuring the quality of food products (19) distributed in commercial areas.
Le couvercle (3) et la couche soudante (7) devront être constitués d'au moins trois couches dont la couche centrale, dans un mode d'exécution préféré, sera le film haute barrière à l'oxygène.The cover (3) and the sealing layer (7) must be made up of minus three layers of which the central layer, in a preferred embodiment, will be the film high oxygen barrier.
Lors de l'opération de soudage, les machines à thermoformer subissent des variations de température et de pression. Dans l'état de la technique, ces variations créaient sur la couche adhésive des "cheminées" (21) dans le sens radial de la barquette (2) qui laissent pénétrer l'oxygène dans l'emballage (1) et échapper le gaz neutre conservateur. Ces "cheminées" (21) sur la couche adhésive (6) existent toujours, mais celles-ci sont situées sur la couche adhésive (6) en dehors de la poche (8) hermétique comprenant un film haute barrière à l'oxygène. De cette façon, les "cheminées" (21) n'ont aucun inconvénient sur l'emballage (1) puisqu'elles ne débouchent pas dans la poche (8)During the welding operation, the thermoforming machines undergo variations in temperature and pressure. In the state of the art, these variations created on the adhesive layer "chimneys" (21) in the radial direction of the tray (2) which allow oxygen to enter the packaging (1) and escape the preservative neutral gas. These "chimneys" (21) on the adhesive layer (6) still exist, but these are located on the adhesive layer (6) outside the sealed pocket (8) comprising a film high oxygen barrier. In this way, the "chimneys" (21) have no disadvantages on the packaging (1) since they do not open into the pocket (8)
Le gaz neutre est correctement conservé à l'intérieur de la poche (8) hermétique, sans aucune pénétration de l'oxygène dans celle-ci. Ainsi, la qualité des produits alimentaires solides, liquides ou pâteux, ou médicaux (19) est donc préservée jusqu'à leur date limite de consommation.The neutral gas is correctly stored inside the pocket (8) hermetic, without any penetration of oxygen therein. So the quality of solid, liquid or pasty, or medical food products (19) is therefore preserved until their expiration date.
De plus, ces "cheminées" (21) sur la couche adhésive (6) n'ayant plus l'inconvénient sur le conditionnement des produits alimentaires solides, liquides ou pâteux, ou médicaux (19), les fabricants d'emballages disposent donc de plus de souplesse quant aux variations de température et de pression des machines à thermoformer. Les dispositifs de régulation en température et en pression sur les machines pourront être simplifiés ou moins précis, ce qui rendra le coût des appareils de contrôle et de commande en régulation moins élevé.In addition, these "chimneys" (21) on the adhesive layer (6) no longer having the drawback on the packaging of solid, liquid or pasty food products, or medical (19), packaging manufacturers therefore have more flexibility in variations in temperature and pressure in thermoforming machines. The devices temperature and pressure regulation on the machines can be simplified or less precise, which will make the cost of control devices under regulation lower.
Lors de la première ouverture de l'emballage (1) pour la consommation du produit alimentaire solide ou pâteux (19), le consommateur, en exerçant un effort suffisamment important, détache le cordon de soudure (4) de la barquette (2) au moins sur une partie de la périphérie de l'emballage (1) et sépare le couvercle (3) de la barquette (2), comme le montre la figure 3.When the packaging (1) is first opened for consumption solid or pasty food product (19), the consumer, by exerting an effort sufficiently large, detach the weld bead (4) from the tray (2) at least on part of the periphery of the packaging (1) and separates the cover (3) from the tray (2), as shown in figure 3.
Pour effectuer cette opération, le consommateur dispose sur l'emballage (1) d'une languette (20) réalisée sur le couvercle (3) qui favorise une meilleure prise pour tirer sur le couvercle (3) et le détacher de la barquette (2), comme le montre la figure 4. En détachant le cordon de soudure (4) de la barquette (2) le consommateur libère la couche adhésive (6) à effet permanent au niveau du cordon de soudure (4) sur toute la périphérie de l'emballage (1), et il ouvre la poche (8) qui perd alors ses caractéristiques d'étanchéité et d'imperméabilité.To carry out this operation, the consumer has on the packaging (1) a tongue (20) produced on the cover (3) which promotes better grip for pull the cover (3) and detach it from the tray (2), as shown in figure 4. In detaching the weld bead (4) from the tray (2) the consumer releases the layer adhesive (6) with permanent effect at the weld bead (4) over the entire periphery of the packaging (1), and it opens the pocket (8) which then loses its sealing characteristics and waterproofing.
Le produit alimentaire solide ou pâteux (19) est alors en contact avec l'oxygène, et le gaz neutre conservateur n'a plus aucune efficacité. Le consommateur doit donc consommer le produit alimentaire (19) sous quelques jours après quoi il aura perdu sa qualité, sa saveur, et sera périssable.The solid or pasty food product (19) is then in contact with oxygen, and the preservative neutral gas is no longer effective. The consumer must therefore consume the food product (19) within a few days after which it will have lost its quality, flavor, and will be perishable.
La partie de la couche adhésive (6), libérée sur la périphérie de l'emballage (1), a une largeur L égale à celle du cordon de soudure (4). Sa largeur L sera dans un mode préférentiel de quatre à huit millimètres. Ainsi, le consommateur peut refermer plusieurs fois le couvercle (3) sur la barquette (2) grâce à l'effet permanent de la couche adhésive (6). La refermeture de l'emballage (1) maintient donc la part du produit alimentaire (19) restante à l'abri de l'humidité dans le réfrigérateur, et empêche également de répandre dans le réfrigérateur les odeurs dégagées par le produit (19).The part of the adhesive layer (6), released on the periphery of the package (1) has a width L equal to that of the weld bead (4). Its width L will be in a preferred mode of four to eight millimeters. So the consumer can close the lid (3) several times on the tray (2) thanks to the permanent effect of the adhesive layer (6). Reclosing the packaging (1) therefore maintains the share of the product food (19) remaining protected from moisture in the refrigerator, and also prevents spread odors from the product (19) in the refrigerator.
De cette façon, le consommateur n'a plus à utiliser de film protecteur pour remédier à ses inconvénients, ou il n'est plus obligé de consommer le produit en une seule fois.In this way, the consumer no longer has to use a protective film to remedy its drawbacks, or it is no longer obliged to consume the product in one one time.
Afin de permettre que le cordon de soudure (4) se détache de la barquette (2) et non du couvercle (3), la résistance du cordon de soudure (4) sur le couvercle (2) doit être supérieure à celle sur la barquette (2). C'est-à-dire que l'on doit favoriser l'arrachement du cordon de soudure (4) au niveau de la barquette (2).To allow the weld bead (4) to come off the tray (2) and not the cover (3), the resistance of the weld bead (4) on the cover (2) must be greater than that on the tray (2). That is to say, we must favor the tearing of the weld bead (4) at the level of the tray (2).
Pour y parvenir on exerce une pression de serrage au niveau du cordon de soudure (4) à une température donnée, ce qui favorise la déformation (22) de la couche soudante (7) et du couvercle (3). Cette déformation devient permanente lorsque la soudure refroidit. Ces deux éléments se déforment du fait qu'ils fusionnent et subissent une pression. Par contre, la couche support (5) de la barquette (2) ne subit quasiment pas de déformation de part la nature de la matière utilisée qui fusionne très peu à la température exercée.To achieve this, a clamping pressure is exerted on the cord solder (4) at a given temperature, which favors the deformation (22) of the layer seal (7) and the cover (3). This deformation becomes permanent when the weld cools. These two elements are deformed by the fact that they merge and undergo a pressure. On the other hand, the support layer (5) of the tray (2) undergoes almost no deformation due to the nature of the material used, which melts very little at temperature exercised.
Il faut donc favoriser la déformation de la couche (7) à la déformation du couvercle (3), pour favoriser l'arrachement du cordon de soudure (4) sur la barquette (2). Pour renforcer ce point, il est également possible de prendre une épaisseur plus grande pour la couche soudante constituant le couvercle (3) que pour la couche soudante (7). Ainsi, la résistance sera plus importante sur le couvercle (3) que sur la couche soudante (7) au niveau du cordon de soudure (4) lorsque le consommateur ouvrira l'emballage (1) pour la première fois.It is therefore necessary to promote the deformation of the layer (7) to the deformation of the cover (3), to favor the tearing off of the weld bead (4) on the tray (2). To strengthen this point, it is also possible to take a greater thickness for the welding layer constituting the cover (3) as for the welding layer (7). So the resistance will be greater on the cover (3) than on the sealing layer (7) at weld bead level (4) when the consumer opens the packaging (1) for the first time.
D'autres mises en oeuvre de la présente invention, à la portée de l'Homme de l'Art, auraient pu être envisagées sans pour autant sortir du cadre de la présente inventionOther implementations of the present invention, within the scope of the Man of the Art, could have been envisaged without departing from the framework of the present invention
Claims (10)
caractérisé par le fait que l'emballage (1) présente une poche (8) imperméable et étanche, qui reçoit le produit alimentaire solide, liquide ou pâteux, ou médical (19), délimitée par :
characterized by the fact that the package (1) has a waterproof and impermeable pocket (8) which receives the solid, liquid or pasty, or medical (19) food product, delimited by:
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69820454T DE69820454T2 (en) | 1998-12-01 | 1998-12-01 | Container for food and medicines that is easy to open and resealable |
PT98490032T PT1006056E (en) | 1998-12-01 | 1998-12-01 | PACKAGING FOR THE CONDITIONING OF FOOD AND MEDICINAL PRODUCTS OF EASY OPENING AND THAT MAY BE CLOSED |
ES98490032T ES2212248T3 (en) | 1998-12-01 | 1998-12-01 | PACKING FOR THE CONDITIONING OF FOOD AND MEDICINAL PRODUCTS WITH EASY AND REOBTURABLE OPENING. |
AT98490032T ATE256050T1 (en) | 1998-12-01 | 1998-12-01 | CONTAINERS FOR FOOD AND MEDICATIONS THAT ARE EASY TO OPEN AND RESEAL |
EP98490032A EP1006056B1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
DK98490032T DK1006056T3 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuffs and medicines, which can be easily opened and closed |
EP03007849A EP1348639A1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
US09/442,414 US6345726B1 (en) | 1998-12-01 | 1999-11-18 | Package for solid, liquid or pasty products |
CA002290856A CA2290856C (en) | 1998-12-01 | 1999-11-24 | Reclosable package for solid, liquid or pasty products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98490032A EP1006056B1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
Related Child Applications (1)
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EP03007849A Division EP1348639A1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
Publications (2)
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EP1006056A1 true EP1006056A1 (en) | 2000-06-07 |
EP1006056B1 EP1006056B1 (en) | 2003-12-10 |
Family
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EP03007849A Withdrawn EP1348639A1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
EP98490032A Expired - Lifetime EP1006056B1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03007849A Withdrawn EP1348639A1 (en) | 1998-12-01 | 1998-12-01 | Container for foodstuff and medicaments which is easy to open and reclosable |
Country Status (8)
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US (1) | US6345726B1 (en) |
EP (2) | EP1348639A1 (en) |
AT (1) | ATE256050T1 (en) |
CA (1) | CA2290856C (en) |
DE (1) | DE69820454T2 (en) |
DK (1) | DK1006056T3 (en) |
ES (1) | ES2212248T3 (en) |
PT (1) | PT1006056E (en) |
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-
1998
- 1998-12-01 AT AT98490032T patent/ATE256050T1/en active
- 1998-12-01 EP EP03007849A patent/EP1348639A1/en not_active Withdrawn
- 1998-12-01 DE DE69820454T patent/DE69820454T2/en not_active Expired - Lifetime
- 1998-12-01 DK DK98490032T patent/DK1006056T3/en active
- 1998-12-01 EP EP98490032A patent/EP1006056B1/en not_active Expired - Lifetime
- 1998-12-01 PT PT98490032T patent/PT1006056E/en unknown
- 1998-12-01 ES ES98490032T patent/ES2212248T3/en not_active Expired - Lifetime
-
1999
- 1999-11-18 US US09/442,414 patent/US6345726B1/en not_active Expired - Fee Related
- 1999-11-24 CA CA002290856A patent/CA2290856C/en not_active Expired - Fee Related
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EP0306982A2 (en) * | 1987-09-09 | 1989-03-15 | Idemitsu Petrochemical Co. Ltd. | Hermetically sealed package and method of producing the same |
EP0403393A1 (en) * | 1989-06-16 | 1990-12-19 | MECAPLASTIC Société Anonyme française | Method for packaging a product, e.g. a food product and package obtained by the method |
EP0661154A1 (en) * | 1993-12-28 | 1995-07-05 | SAFTA S.p.A. | Composite sheet for the re-closure of containers |
US5747127A (en) * | 1994-12-06 | 1998-05-05 | Shell Oil Company | Polyester composition for use in thermoforming dual-ovenable trays |
WO1997019867A1 (en) * | 1995-11-29 | 1997-06-05 | Soplaril S.A. | Container sealing assembly |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003055771A1 (en) * | 2002-01-02 | 2003-07-10 | Wipak Walsrode Gmbh & Co. Kg | Packaging having a special sealing seam |
DE10200020A1 (en) * | 2002-01-02 | 2003-07-17 | Wipak Walsrode Gmbh & Co Kg | Packaging with a special sealing seam |
DE202008005664U1 (en) | 2008-04-23 | 2008-07-31 | Wipak Walsrode Gmbh & Co. Kg | Packaging system of stackable packaging units |
US11254466B2 (en) | 2018-08-21 | 2022-02-22 | Intercontinental Great Brands Llc | Food storage tray |
USD964862S1 (en) | 2018-08-21 | 2022-09-27 | Intercontinental Great Brands Llc | Tray |
US11724855B2 (en) | 2018-08-21 | 2023-08-15 | Intercontinental Great Brands Llc | Food storage tray |
Also Published As
Publication number | Publication date |
---|---|
ES2212248T3 (en) | 2004-07-16 |
CA2290856A1 (en) | 2000-06-01 |
EP1006056B1 (en) | 2003-12-10 |
EP1348639A1 (en) | 2003-10-01 |
PT1006056E (en) | 2004-04-30 |
ATE256050T1 (en) | 2003-12-15 |
DE69820454T2 (en) | 2005-09-15 |
CA2290856C (en) | 2008-04-29 |
DK1006056T3 (en) | 2004-04-05 |
US6345726B1 (en) | 2002-02-12 |
DE69820454D1 (en) | 2004-01-22 |
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