EP1693307A1 - Cup-shaped container for two food products - Google Patents

Cup-shaped container for two food products Download PDF

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Publication number
EP1693307A1
EP1693307A1 EP06290260A EP06290260A EP1693307A1 EP 1693307 A1 EP1693307 A1 EP 1693307A1 EP 06290260 A EP06290260 A EP 06290260A EP 06290260 A EP06290260 A EP 06290260A EP 1693307 A1 EP1693307 A1 EP 1693307A1
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EP
European Patent Office
Prior art keywords
membrane
line
weakening
packaging according
layer
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.)
Withdrawn
Application number
EP06290260A
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German (de)
French (fr)
Inventor
Jean-Jacques Provost
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.)
Amcor Flexibles ApS
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Amcor Flexibles Europe AS
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Filing date
Publication date
Application filed by Amcor Flexibles Europe AS filed Critical Amcor Flexibles Europe AS
Publication of EP1693307A1 publication Critical patent/EP1693307A1/en
Withdrawn legal-status Critical Current

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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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02—Internal fittings
    • B65D25/04—Partitions
    • B65D25/08—Partitions with provisions for removing or destroying, e.g. to facilitate mixing of contents

Definitions

  • the present invention relates to a package of the type comprising a pot delimited by a bottom and a peripheral dress defining an opening opposite the bottom.
  • a grout or topping is present at the bottom of the pot.
  • the user removes the sealing cap and returns the pot over a plate.
  • An air inlet is created in the bottom of the pot, either by removing a tongue initially closing a hole, or by breaking a frangible portion of the bottom of the pot. Due to the arrival of air, the blank is released in the plate and the topping contained in the bottom of the pot. Thus, the topping flows from the upper portion of the blank covering it aesthetically.
  • the topping is in constant contact with the blank during storage of the pot.
  • the two substances are in constant contact during the storage / transport phase which precedes the consumption phase. Indeed, the contact can affect the taste qualities of the product and / or its visual appearance.
  • the invention aims to provide a package for separate storage of two food substances and bringing them into contact, during a single phase of demolding allowing the release of the two substances and their bringing into simultaneous contact.
  • the subject of the invention is a package of the aforementioned type, characterized in that it comprises a frangible membrane disposed between the bottom and the opening, which frangible membrane is welded at its periphery to the inner surface of the pot and thus delimits, successively from the bottom to the opening, a lower housing and an upper housing initially separated.
  • the package 10 illustrated in Figure 1 essentially comprises a pot 12 having an upper opening end 14 initially closed by a removable cap 16.
  • the package 10 further comprises a frangible membrane 18 defining, in the pot, a lower housing 20 filled a first substance such as a grout and an upper housing 22 filled with a second substance such as a blank.
  • the membrane 18 extends generally transversely to the pot, that is to say parallel to the plane of the opening 14.
  • the pot 12 is, as known per se, formed by thermoforming from a sheet of plastic material such as polystyrene.
  • the pot has a bottom 23 surrounded by a dress 24 delimiting the body of the pot.
  • a sealing rim 26 of the cover 16 surrounds the opening 14 externally.
  • the dress has a generally frustoconical shape flaring from the bottom 23 to the upper opening 14.
  • the dress 24 has a transverse shoulder 28 formed near the bottom 22.
  • the dress has a lower section 30 connected by the shoulder 28 at an upper section 32, the sections 30 and 32 delimiting laterally, respectively, the lower housing 20 and the upper housing 22.
  • the bottom 23 has a reduced thickness allowing its elastic deformation, and in particular allowing it to bend towards the inside of the pot under the action of an axial pressure exerted at its center from the outside of the pot.
  • the membrane 18 has the shape of a disc. It is welded at its periphery to the intermediate ring delimited by the shoulder 28. It is welded in a weld defining a closed contour so that it initially seals the lower housing 20.
  • the membrane 18 is formed of one or more polymeric materials adapted for heat sealing on the shoulder 28 of the pot.
  • This weakening line 40 has a weakening line 40 allowing it to be frangible.
  • This weakening line extends over most of the width of the membrane and advantageously follows a curved profile, so that it delimits a tongue 42.
  • the weakening line delimits an open contour.
  • This line of weakness 40 is formed by treatment of the film constituting the membrane.
  • the treatment is applied before the introduction of the membrane in the pot while the film is being manufactured and before winding.
  • the weakening line 40 is produced by applying a high energy radiation, such as a laser, by applying a laser beam along the line of the line to be weakened. This high energy treatment is performed on one or more layers of the film when the latter comprises more than one layer.
  • the weakening line is formed by a mechanical weakening of the film which extends along the line of the weakening line. This mechanical treatment is carried out according to one or more of the layers of the film when it comprises more than one.
  • a microporous weakening is performed in order to form the weakening line.
  • a microporous treatment is obtained for example by passing the film or a layer of the film, when it comprises several of them, between two rollers, one of the rollers having a surface rendered abrasive in the zone to be applied on the line. to weaken.
  • Such a treatment is described for example in document FR-2.717.449.
  • the mechanical weakening is obtained by cutting or punching partially or completely the thickness of one or more layers of the film when the latter comprises more than one. These cuts or punchings are formed by applying a matrix of cutting blades along the line of weakness. During the treatment, the film is pressed between the matrix and a support, as known per se. Thus, the cut or partially cut portion is formed in dashed lines.
  • the line of weakness 40 is formed by a microperforated region that does not completely pass through the film but reduces the breaking strength of the film in the treated area. These micro-perforations can penetrate only through one of the layers of the film when it comprises several.
  • a combination of the weakening processes described above can be performed on the same film, or on the same layer of the film, or on different layers of the film if it comprises more than one.
  • FIG. 2 A particularly advantageous embodiment of the membrane is illustrated in FIG. 2.
  • This comprises several laminated or coextruded polymer layers.
  • it comprises a support layer 52 associated with a sealing layer 54, a connecting layer 56 being disposed between these two layers for their connection over their entire surface.
  • the support layer 52 is formed for example of a bi-oriented polyester and has a thickness of between 6 microns and 50 microns and preferably substantially equal to 12 microns.
  • the welding film 54 is chosen to allow heat sealing on the shoulder 28 of the polystyrene pot.
  • the welding film 54 is advantageously a polystyrene film, that is to say in the same material as that constituting the pot.
  • the thickness of the layer 54 is between 15 ⁇ m and 50 ⁇ m and preferably substantially equal to 30 ⁇ m.
  • the polystyrene layer 54 consists of more than 50% by mass of crystalline phase.
  • the crystalline phase is preferably greater than 80% by weight, and advantageously between 85% and 99% by weight.
  • a sealing varnish is applied to the surface of the film 54 to be welded to the shoulder 28 for melt-incompatible materials.
  • the layer 56 is formed for example of an adhesive providing a binding force sufficient to prevent delamination between the layers 52 and 54.
  • the layer 56 is formed of a polymer extrusion.
  • the support layer 52 comprises a weakening 52A made by a high energy radiation and in particular a laser beam. It is also possible to use a mechanical cut (rotary knife / blades / etc ...) of the support layer 52 before its combination with the sealing layer 54.
  • the solder layer 54 is devoid of any weakening treatment.
  • a weakening treatment 54A is provided along the line of the weakening line 40 in the solder layer 54.
  • This line may have different drawings depending on the viscosity of the product contained in the lower housing 20.
  • This treatment preferably consists in rendering the layer 54 embrittled along the path of the line of weakness 40, in particular by passing the layer 54 between two rolls, one of which is abrasive in order to roughen one of the surfaces of the layer 54
  • this surface is disposed on the side of the bonding layer 56.
  • the tensile rupture force of the membrane 18 along the line of weakness 40 is between 3 N / 15 mm and 50 N / 15 mm, that is to say it is necessary to apply a force of 3 N to 50 N transversely to a line of weakness 40 with a length of 15 mm to obtain the rupture of the membrane along the line of weakness. It is preferably between 4 N / 15 mm and 40 N / 15 mm.
  • composition of the membrane and the treatments carried out make it possible to adjust the rupture as a function of the pressure exerted on the bottom by the consumer, the surface of the membrane and the volume of the reservoir.
  • the seal 16 closing the package filled, for example, with a grout in the lower chamber and a blank in the upper housing 22 is formed of a composite film consisting for example of paper and a polymer film coated with a heat-sealing varnish, or a pre-cut foil-based seal.
  • the polystyrene pot 12 is first thermoformed. This is then filled with the topping arranged directly in the lower housing 20.
  • the membrane 18 is cut from coil or pre-cut beforehand, then placed and welded by heat-sealing on the shoulder 28.
  • the compatibility of the materials for ultrasonic sealing for example.
  • the blank 22 still liquid is poured into the upper housing.
  • the composition of one of the polymer layers of the membrane and especially, in this example, of the layer 54 makes it possible to resist the impact of the blank deposited on the membrane 18.
  • the cap 16 is positioned and welded on the flange 26, as known per se.
  • the cap 16 is removed and the pot containing the blank and the topping is turned over a plate with the opening 16 pressed on the bottom of the plate.
  • the pressure causes the fall of the blank that is received on the bottom of the plate.
  • the topping then flows gradually through the opening designated by the reference 70 in Figure 3 to flow on the blank from its top.
  • the tongue shape imparted to the broken membrane 18 by the curved weakening line allows easy flow of the batt, even if it has a certain viscosity.
  • the polyester layer makes it possible to ensure coherence for the pieces of the highly crystallized polystyrene layer 54, in order to prevent these pieces from mixing with the food product and thus to guarantee a lack of transfer into the food product.
  • the proposed packaging makes it possible to separately store two food substances and to ensure their contacting and demolding in a single operation.

Abstract

The packing (10) has a frangible membrane (18) delimiting, inside a case (12), the lower and upper housings (20, 22) respectively filled with two substances e.g. pudding. The membrane has a depression line (40) extending on a width of the membrane and following a curved profile to limit a tongue (42). The membrane has a support layer associated to a sealing layer that is constituted of fifty percentage of crystalline phase.

Description

La présente invention concerne un emballage, du type comportant un pot délimité par un fond et une robe périphérique définissant une ouverture opposée au fond.The present invention relates to a package of the type comprising a pot delimited by a bottom and a peripheral dress defining an opening opposite the bottom.

De nombreux desserts lactés sont conditionnés dans des pots dont l'ouverture supérieure est initialement obturée par un opercule.Many dairy desserts are packaged in pots whose upper opening is initially closed by a lid.

Pour certains flans, un coulis ou nappage est présent au fond du pot. Pour consommer le produit, l'utilisateur retire l'opercule d'obturation puis retourne le pot au-dessus d'une assiette. Une arrivée d'air est créée dans le fond du pot, soit par retrait d'une languette obturant initialement un trou, soit par rupture d'une partie frangible du fond du pot. Du fait de l'arrivée d'air, le flan est libéré dans l'assiette ainsi que le nappage contenu dans le fond du pot. Ainsi, le nappage s'écoule depuis la partie supérieure du flan recouvrant celui-ci de manière esthétique.For some blanks, a grout or topping is present at the bottom of the pot. To consume the product, the user removes the sealing cap and returns the pot over a plate. An air inlet is created in the bottom of the pot, either by removing a tongue initially closing a hole, or by breaking a frangible portion of the bottom of the pot. Due to the arrival of air, the blank is released in the plate and the topping contained in the bottom of the pot. Thus, the topping flows from the upper portion of the blank covering it aesthetically.

Avec une telle forme de conditionnement, le nappage est en contact permanent avec le flan lors du stockage du pot.With such a form of packaging, the topping is in constant contact with the blank during storage of the pot.

Pour certaines préparations alimentaires, il n'est pas souhaité que les deux substances soient en contact permanent pendant la phase de stockage / transport qui précède la phase de consommation. En effet, le contact peut nuire aux qualités gustatives du produit et/ou à son aspect visuel.For certain food preparations, it is not desirable for the two substances to be in constant contact during the storage / transport phase which precedes the consumption phase. Indeed, the contact can affect the taste qualities of the product and / or its visual appearance.

Ainsi, il a été envisagé des emballages comportant deux logements distincts, séparés l'un de l'autre, et permettant au consommateur de procéder lui-même au rapprochement des deux substances seulement lors de la phase ultime de consommation.Thus, it has been envisaged packaging with two separate dwellings, separated from each other, and allowing the consumer to proceed to the reconciliation of the two substances only during the final phase of consumption.

De tels emballages sont peu commodes puisqu'ils ne permettent pas un démoulage simultané par une simple opération des deux substances, comme cela est possible lorsque les deux substances sont en contact permanent lors du stockage.Such packages are inconvenient since they do not allow simultaneous demolding by a simple operation of the two substances, as is possible when the two substances are in permanent contact during storage.

L'invention a pour but de proposer un emballage permettant un stockage séparé de deux substances alimentaires et leur mise en contact, lors d'une phase unique de démoulage permettant la libération des deux substances et leur mise en contact simultanée.The invention aims to provide a package for separate storage of two food substances and bringing them into contact, during a single phase of demolding allowing the release of the two substances and their bringing into simultaneous contact.

A cet effet, l'invention a pour objet un emballage du type précité, caractérisé en ce qu'il comporte une membrane frangible disposée entre le fond et l'ouverture, laquelle membrane frangible est soudée à sa périphérie sur la surface intérieure du pot et délimite ainsi, successivement du fond vers l'ouverture, un logement inférieur et un logement supérieur initialement séparés.For this purpose, the subject of the invention is a package of the aforementioned type, characterized in that it comprises a frangible membrane disposed between the bottom and the opening, which frangible membrane is welded at its periphery to the inner surface of the pot and thus delimits, successively from the bottom to the opening, a lower housing and an upper housing initially separated.

Suivant des modes particuliers de réalisation, l'emballage comporte l'une ou plusieurs des caractéristiques suivantes :

  • la membrane frangible comporte au moins une ligne d'affaiblissement ;
  • la ligne d'affaiblissement a un tracé courbe ;
  • la membrane a, suivant la ligne d'affaiblissement, au moins un traitement mécanique d'affaiblissement sur au moins une couche de la membrane ;
  • ledit traitement mécanique d'affaiblissement comprend un affaiblissement microporeux ;
  • le traitement mécanique d'affaiblissement comprend une découpe ou un poinçonnage partiel d'au moins une couche de la membrane avec l'aide d'une matrice de lames suivant la ligne d'affaiblissement ;
  • la membrane a, suivant la ligne d'affaiblissement, un traitement d'affaiblissement par rayonnement à haute énergie suivant au moins une couche de la membrane ;
  • la membrane comporte au moins deux couches, la première couche ayant subi un traitement d'affaiblissement par rayonnement à haute énergie suivant la ligne d'affaiblissement, et la deuxième couche ayant subi un traitement mécanique d'affaiblissement suivant la ligne d'affaiblissement;
  • la membrane comporte au moins une couche d'un polymère dont la phase cristalline est en masse au moins égale à 50 % et, de préférence, supérieure à 80 % ;
  • le fond du pot est déformable vers l'intérieur du logement inférieur ;
  • la membrane comporte au moins une couche de polystyrène et une couche de polyester ; et
  • la force de rupture à l'étirement de la membrane suivant la ligne d'affaiblissement est comprise entre 4 N/15 mm et 40 N/15 mm.
According to particular embodiments, the packaging comprises one or more of the following characteristics:
  • the frangible membrane comprises at least one weakening line;
  • the line of weakness has a curved line;
  • the membrane has, following the line of weakness, at least one weakening mechanical treatment on at least one layer of the membrane;
  • said mechanical weakening treatment comprises microporous weakening;
  • the mechanical weakening treatment comprises cutting or partial punching of at least one layer of the membrane with the aid of a matrix of blades along the line of weakness;
  • the membrane has, along the line of weakness, a high energy radiation attenuation treatment following at least one layer of the membrane;
  • the membrane comprises at least two layers, the first layer having undergone a high energy radiation attenuation treatment along the line of weakness, and the second layer having undergone weakening mechanical treatment along the line of weakness;
  • the membrane comprises at least one layer of a polymer whose crystalline phase is in mass at least equal to 50% and, preferably, greater than 80%;
  • the bottom of the pot is deformable towards the interior of the lower housing;
  • the membrane comprises at least one polystyrene layer and one polyester layer; and
  • the breaking force at the stretching of the membrane along the line of weakness is between 4 N / 15 mm and 40 N / 15 mm.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins, sur lesquels :

  • la figure 1 est une vue en perspective d'un emballage selon l'invention, avant ouverture ;
  • la figure 2 est une vue en section de la membrane intercalaire de l'emballage de la figure 1 ; et
  • la figure 3 est une vue en perspective de l'emballage lors du démoulage du produit conditionné.
The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings, in which:
  • Figure 1 is a perspective view of a package according to the invention, before opening;
  • Figure 2 is a sectional view of the intermediate membrane of the package of Figure 1; and
  • Figure 3 is a perspective view of the package during demolding of the packaged product.

L'emballage 10 illustré sur la figure 1 comporte essentiellement un pot 12 présentant une extrémité ouverture supérieure 14 initialement obturée par un opercule amovible 16. L'emballage 10 comporte en outre une membrane frangible 18 délimitant, dans le pot, un logement inférieur 20 rempli d'une première substance telle qu'un coulis et un logement supérieur 22 empli d'une seconde substance telle qu'un flan. La membrane 18 s'étend généralement transversalement au pot, c'est-à-dire parallèlement au plan de l'ouverture 14.The package 10 illustrated in Figure 1 essentially comprises a pot 12 having an upper opening end 14 initially closed by a removable cap 16. The package 10 further comprises a frangible membrane 18 defining, in the pot, a lower housing 20 filled a first substance such as a grout and an upper housing 22 filled with a second substance such as a blank. The membrane 18 extends generally transversely to the pot, that is to say parallel to the plane of the opening 14.

Le pot 12 est, comme connu en soi, formé par thermoformage à partir d'une feuille de matière plastique tel que du polystyrène. Le pot comporte un fond 23 entouré d'une robe 24 délimitant le corps du pot. Un rebord 26 de scellage de l'opercule 16 entoure extérieurement l'ouverture 14.The pot 12 is, as known per se, formed by thermoforming from a sheet of plastic material such as polystyrene. The pot has a bottom 23 surrounded by a dress 24 delimiting the body of the pot. A sealing rim 26 of the cover 16 surrounds the opening 14 externally.

La robe présente une forme généralement tronconique s'évasant du fond 23 vers l'ouverture supérieure 14. La robe 24 présente un épaulement transversal 28 ménagé au voisinage du fond 22. Ainsi, la robe comporte un tronçon inférieur 30 relié par l'épaulement 28 à un tronçon supérieur 32, les tronçons 30 et 32 délimitant latéralement, respectivement, le logement inférieur 20 et le logement supérieur 22.The dress has a generally frustoconical shape flaring from the bottom 23 to the upper opening 14. The dress 24 has a transverse shoulder 28 formed near the bottom 22. Thus, the dress has a lower section 30 connected by the shoulder 28 at an upper section 32, the sections 30 and 32 delimiting laterally, respectively, the lower housing 20 and the upper housing 22.

Le fond 23 présente une épaisseur réduite permettant sa déformation élastique, et en particulier permettant que celui-ci s'incurve vers l'intérieur du pot sous l'action d'une pression axiale exercée en son centre depuis l'extérieur du pot.The bottom 23 has a reduced thickness allowing its elastic deformation, and in particular allowing it to bend towards the inside of the pot under the action of an axial pressure exerted at its center from the outside of the pot.

La membrane 18 présente la forme d'un disque. Il est soudé à sa périphérie sur la couronne intermédiaire délimitée par l'épaulement 28. Il est soudé suivant une soudure délimitant un contour fermé de sorte qu'elle obture initialement de manière étanche le logement inférieur 20.The membrane 18 has the shape of a disc. It is welded at its periphery to the intermediate ring delimited by the shoulder 28. It is welded in a weld defining a closed contour so that it initially seals the lower housing 20.

La membrane 18 est formée d'un ou de plusieurs matériaux polymères adaptés pour son thermosoudage sur l'épaulement 28 du pot.The membrane 18 is formed of one or more polymeric materials adapted for heat sealing on the shoulder 28 of the pot.

Elle comporte une ligne d'affaiblissement 40 lui permettant d'être frangible. Cette ligne d'affaiblissement s'étend sur l'essentiel de la largeur de la membrane et suit avantageusement un profil courbe, de sorte qu'elle délimite une langue 42. La ligne d'affaiblissement délimite un contour ouvert.It has a weakening line 40 allowing it to be frangible. This weakening line extends over most of the width of the membrane and advantageously follows a curved profile, so that it delimits a tongue 42. The weakening line delimits an open contour.

Cette ligne d'affaiblissement 40 est formée par traitement du film constituant la membrane. Avantageusement, le traitement est appliqué avant la mise en place de la membrane dans le pot alors que le film est en cours de fabrication et avant bobinage.This line of weakness 40 is formed by treatment of the film constituting the membrane. Advantageously, the treatment is applied before the introduction of the membrane in the pot while the film is being manufactured and before winding.

Selon un premier mode de réalisation, la ligne d'affaiblissement 40 est produite par application d'une radiation haute énergie, telle qu'un laser, en appliquant un faisceau laser suivant le tracé de la ligne devant être affaiblie. Ce traitement à haute énergie est effectué sur une ou plusieurs couches du film lorsque ce dernier comprend plus d'une couche.According to a first embodiment, the weakening line 40 is produced by applying a high energy radiation, such as a laser, by applying a laser beam along the line of the line to be weakened. This high energy treatment is performed on one or more layers of the film when the latter comprises more than one layer.

Selon un autre mode de réalisation, la ligne d'affaiblissement est formée par un affaiblissement mécanique du film qui s'étend suivant le tracé de la ligne d'affaiblissement. Ce traitement mécanique est effectué suivant une ou plusieurs des couches du film lorsque celui-ci en comporte plus d'une.According to another embodiment, the weakening line is formed by a mechanical weakening of the film which extends along the line of the weakening line. This mechanical treatment is carried out according to one or more of the layers of the film when it comprises more than one.

Selon un premier exemple de traitement mécanique, un affaiblissement microporeux est exécuté afin de former la ligne d'affaiblissement. Un tel traitement microporeux est obtenu par exemple en passant le film ou une couche du film, lorsque celui-ci en comporte plusieurs, entre deux rouleaux, l'un des rouleaux ayant une surface rendue abrasive dans la zone devant s'appliquer sur la ligne à affaiblir. Un tel traitement est décrit par exemple dans le document FR-2.717.449.According to a first example of mechanical processing, a microporous weakening is performed in order to form the weakening line. Such a microporous treatment is obtained for example by passing the film or a layer of the film, when it comprises several of them, between two rollers, one of the rollers having a surface rendered abrasive in the zone to be applied on the line. to weaken. Such a treatment is described for example in document FR-2.717.449.

Selon un deuxième exemple, l'affaiblissement mécanique est obtenu en coupant ou poinçonnant partiellement ou complètement l'épaisseur d'une ou plusieurs couches du film lorsque ce dernier en comprend plus d'une. Ces découpes ou poinçonnages sont formés en appliquant une matrice de lames tranchantes suivant la ligne d'affaiblissement. Pendant le traitement, le film est pressé entre la matrice et un support, comme connu en soi. Ainsi, la partie coupée ou partiellement coupée est formée en pointillés.According to a second example, the mechanical weakening is obtained by cutting or punching partially or completely the thickness of one or more layers of the film when the latter comprises more than one. These cuts or punchings are formed by applying a matrix of cutting blades along the line of weakness. During the treatment, the film is pressed between the matrix and a support, as known per se. Thus, the cut or partially cut portion is formed in dashed lines.

Selon encore un autre exemple, la ligne d'affaiblissement 40 est formée par une région microperforée qui ne traverse pas complètement le film mais réduit la résistance à la rupture du film dans la zone traitée. Ces micro-perforations peuvent pénétrer seulement au travers d'une des couches du film lorsque celui-ci en comporte plusieurs.In yet another example, the line of weakness 40 is formed by a microperforated region that does not completely pass through the film but reduces the breaking strength of the film in the treated area. These micro-perforations can penetrate only through one of the layers of the film when it comprises several.

Par ailleurs, une combinaison des traitements d'affaiblissement décrits ci-dessus peut être effectuée sur un même film, soit sur une même couche du film, soit sur des couches différentes du film si celui-ci en comporte plus d'une.Moreover, a combination of the weakening processes described above can be performed on the same film, or on the same layer of the film, or on different layers of the film if it comprises more than one.

Un mode de réalisation particulièrement avantageux de la membrane est illustré sur la figure 2. Celle-ci comporte plusieurs couches de polymère laminées ou co-extrudées. En particulier elle comporte une couche support 52 associée à une couche scellante 54, une couche de liaison 56 étant disposée entre ces deux couches pour leur liaison sur toute leur surface.A particularly advantageous embodiment of the membrane is illustrated in FIG. 2. This comprises several laminated or coextruded polymer layers. In particular it comprises a support layer 52 associated with a sealing layer 54, a connecting layer 56 being disposed between these two layers for their connection over their entire surface.

La couche support 52 est formée par exemple d'un polyester bi-orienté et a une épaisseur comprise entre 6 µm et 50 µm et de préférence sensiblement égale à 12 µm.The support layer 52 is formed for example of a bi-oriented polyester and has a thickness of between 6 microns and 50 microns and preferably substantially equal to 12 microns.

Le film soudant 54 est choisi pour permettre un thermoscellage sur l'épaulement 28 du pot formé en polystyrène. Ainsi, le film soudant 54 est avantageusement un film de polystyrène, c'est-à-dire dans le même matériau que celui constituant le pot.The welding film 54 is chosen to allow heat sealing on the shoulder 28 of the polystyrene pot. Thus, the welding film 54 is advantageously a polystyrene film, that is to say in the same material as that constituting the pot.

L'épaisseur de la couche 54 est comprise entre 15 µm et 50 µm et, de préférence sensiblement égale à 30 µm.The thickness of the layer 54 is between 15 μm and 50 μm and preferably substantially equal to 30 μm.

Avantageusement, la couche de polystyrène 54 est constituée à plus de 50 % en masse de phase cristalline. La phase cristalline est de préférence supérieure à 80 % en masse, et avantageusement comprise entre 85 % et 99 % en masse.Advantageously, the polystyrene layer 54 consists of more than 50% by mass of crystalline phase. The crystalline phase is preferably greater than 80% by weight, and advantageously between 85% and 99% by weight.

Suivant un mode particulier de réalisation, un vernis de scellage est appliqué sur la surface du film 54 devant être soudée sur l'épaulement 28 pour des matériaux incompatibles par fusion.In a particular embodiment, a sealing varnish is applied to the surface of the film 54 to be welded to the shoulder 28 for melt-incompatible materials.

La couche 56 est formée par exemple d'un adhésif assurant une force de liaison suffisante pour éviter tout délaminage entre les couches 52 et 54. En variante, la couche 56 est formée d'une extrusion de polymère.The layer 56 is formed for example of an adhesive providing a binding force sufficient to prevent delamination between the layers 52 and 54. Alternatively, the layer 56 is formed of a polymer extrusion.

Dans le mode de réalisation envisagé, la couche support 52 comporte un affaiblissement 52A fait par un rayonnement à haute énergie et notamment un faisceau laser. On peut également utiliser une découpe mécanique (couteau rotatif / lames/ etc...) de la couche support 52 avant son association avec la couche scellante 54.In the embodiment envisaged, the support layer 52 comprises a weakening 52A made by a high energy radiation and in particular a laser beam. It is also possible to use a mechanical cut (rotary knife / blades / etc ...) of the support layer 52 before its combination with the sealing layer 54.

Suivant un premier mode de réalisation, la couche soudante 54 est dépourvue de tout traitement d'affaiblissement.According to a first embodiment, the solder layer 54 is devoid of any weakening treatment.

Suivant un autre mode de réalisation avantageux, un traitement d'affaiblissement 54A est ménagé suivant le tracé de la ligne d'affaiblissement 40 dans la couche soudante 54. Cette ligne peut avoir différents dessins suivant la viscosité du produit contenu dans le logement inférieur 20.According to another advantageous embodiment, a weakening treatment 54A is provided along the line of the weakening line 40 in the solder layer 54. This line may have different drawings depending on the viscosity of the product contained in the lower housing 20.

Ce traitement consiste de préférence à rendre la couche 54 fragilisée suivant le tracé de la ligne d'affaiblissement 40, notamment en passant la couche 54 entre deux rouleaux dont l'un est abrasif afin de rendre rugueuse l'une des surfaces de la couche 54. Avantageusement, cette surface est disposée du côté de la couche de liaison 56.This treatment preferably consists in rendering the layer 54 embrittled along the path of the line of weakness 40, in particular by passing the layer 54 between two rolls, one of which is abrasive in order to roughen one of the surfaces of the layer 54 Advantageously, this surface is disposed on the side of the bonding layer 56.

De préférence, la force de rupture à l'étirement de la membrane 18 suivant la ligne d'affaiblissement 40 est comprise entre 3 N/15 mm et 50 N/15 mm, c'est-à-dire qu'il convient d'appliquer une force de 3 N à 50 N transversalement à une ligne d'affaiblissement 40 d'une longueur de 15 mm pour obtenir la rupture de la membrane suivant la ligne d'affaiblissement. Elle est de préférence comprise entre 4 N/15 mm et 40 N/15 mm.Preferably, the tensile rupture force of the membrane 18 along the line of weakness 40 is between 3 N / 15 mm and 50 N / 15 mm, that is to say it is necessary to apply a force of 3 N to 50 N transversely to a line of weakness 40 with a length of 15 mm to obtain the rupture of the membrane along the line of weakness. It is preferably between 4 N / 15 mm and 40 N / 15 mm.

La composition de la membrane et les traitements réalisés permettent d'ajuster la rupture en fonction de la pression exercée sur le fond par le consommateur, de la surface de la membrane et du volume du réservoir.The composition of the membrane and the treatments carried out make it possible to adjust the rupture as a function of the pressure exerted on the bottom by the consumer, the surface of the membrane and the volume of the reservoir.

L'opercule 16 obturant l'emballage rempli, par exemple, d'un coulis dans la chambre inférieure et d'un flan dans le logement supérieur 22 est formé d'un film composite constitué par exemple de papier et d'un film de polymère enduit d'un vernis de thermoscellage, ou encore d'un opercule prédécoupé à base d'aluminium.The seal 16 closing the package filled, for example, with a grout in the lower chamber and a blank in the upper housing 22 is formed of a composite film consisting for example of paper and a polymer film coated with a heat-sealing varnish, or a pre-cut foil-based seal.

Pour la fabrication d'un tel conditionnement, le pot en polystyrène 12 est d'abord thermoformé. Celui-ci est ensuite rempli du nappage disposé directement dans le logement inférieur 20. La membrane 18 est découpée à partir de bobine ou prédécoupée au préalable, puis mise en place et soudée par thermoscellage sur l'épaulement 28. On peut utiliser la compatibilité des matériaux pour sceller par ultrasons par exemple.For the manufacture of such a packaging, the polystyrene pot 12 is first thermoformed. This is then filled with the topping arranged directly in the lower housing 20. The membrane 18 is cut from coil or pre-cut beforehand, then placed and welded by heat-sealing on the shoulder 28. The compatibility of the materials for ultrasonic sealing for example.

Après quoi, le flan 22 encore liquide est coulé dans le logement supérieur. Lors de l'écoulement du liquide, la composition de l'une des couches de polymère de la membrane et notamment, dans l'exemple considéré, de la couche 54 permet de résister à l'impact du flan déposé sur la membrane 18. Après mise en place du flan, l'opercule 16 est positionné et soudé sur le rebord 26, comme connu en soi.After which, the blank 22 still liquid is poured into the upper housing. During the flow of the liquid, the composition of one of the polymer layers of the membrane and especially, in this example, of the layer 54 makes it possible to resist the impact of the blank deposited on the membrane 18. After placing the blank, the cap 16 is positioned and welded on the flange 26, as known per se.

Pour consommer le produit, l'opercule 16 est retiré et le pot contenant le flan et le nappage est retourné au-dessus d'une assiette avec l'ouverture 16 plaquée sur le fond de l'assiette.To consume the product, the cap 16 is removed and the pot containing the blank and the topping is turned over a plate with the opening 16 pressed on the bottom of the plate.

Une pression est exercée sur le fond 23, par exemple par appui manuel. Sous l'action de cette pression, le fond 23 se déforme, conduisant à une augmentation de pression dans le logement inférieur 20. Celle-ci va s'exercer préférentiellement en un point central de la membrane pour venir rompre le film non découpé ou fragilisé restant. La membrane 18 se rompt ensuite par propagation en suivant la ligne d'affaiblissement 40 permettant de libérer le nappage. La ligne d'affaiblissement est telle que la surpression créée dans le logement inférieur 20 provoque la rupture de la membrane selon la ligne d'affaiblissement.Pressure is exerted on the bottom 23, for example by manual support. Under the action of this pressure, the bottom 23 is deformed, leading to an increase in pressure in the lower housing 20. The latter will be exerted preferentially at a central point of the membrane to break the uncut film or weakened remaining. The membrane 18 then breaks through propagation along the line of weakness 40 to release the coating. The line of weakness is such that the overpressure created in the lower housing 20 causes the rupture of the membrane along the line of weakness.

De même, la pression provoque la chute du flan qui est reçu sur le fond de l'assiette. Le nappage s'écoule alors progressivement au travers de l'ouverture désignée par la référence 70 sur la figure 3 pour s'écouler sur le flan depuis son sommet.Similarly, the pressure causes the fall of the blank that is received on the bottom of the plate. The topping then flows gradually through the opening designated by the reference 70 in Figure 3 to flow on the blank from its top.

La forme de langue conférée à la membrane rompue 18 par la ligne d'affaiblissement courbe permet un écoulement facile du nappage, même si celui-ci a une certaine viscosité.The tongue shape imparted to the broken membrane 18 by the curved weakening line allows easy flow of the batt, even if it has a certain viscosity.

Lorsque la membrane est formée de deux couches, la couche de polyester permet d'assurer une cohérence pour les morceaux de la couche fortement cristallisée de polystyrène 54, afin d' éviter que ces morceaux ne se mélangent au produit alimentaire et ainsi garantir une absence de transfert dans le produit alimentaire.When the membrane is formed of two layers, the polyester layer makes it possible to ensure coherence for the pieces of the highly crystallized polystyrene layer 54, in order to prevent these pieces from mixing with the food product and thus to guarantee a lack of transfer into the food product.

Ainsi, l'emballage proposé permet de stocker séparément deux substances alimentaires et d'assurer leur mise en contact et leur démoulage en une seule opération.Thus, the proposed packaging makes it possible to separately store two food substances and to ensure their contacting and demolding in a single operation.

Claims (13)

Emballage (10) comportant un pot (12) délimité par un fond (23) et une robe (24) périphérique définissant une ouverture (14) opposée au fond (23), lequel emballage comporte une membrane frangible (18) disposée entre le fond (23) et l'ouverture (14), laquelle membrane frangible (18) est soudée à sa périphérie sur la surface intérieure (28) du pot (12) et délimite ainsi, successivement du fond (23) vers l'ouverture (14), un logement inférieur (20) et un logement supérieur (22) initialement séparés,
caractérisé en ce que la membrane frangible (18) comporte au moins une ligne d'affaiblissement (40) et en ce que la ligne d'affaiblissement est telle que une suppression créée dans le logement inférieur (20) provoque la rupture de la membrane (18) selon la ligne d'affaiblissement (40).Packaging (10) comprising a pot (12) delimited by a bottom (23) and a dress (24) defining an opening (14) opposite the bottom (23), which package comprises a frangible membrane (18) arranged between the bottom (23) and the opening (14), which frangible membrane (18) is welded at its periphery to the inner surface (28) of the pot (12) and thus delimits, successively from the bottom (23) to the opening (14). ), a lower housing (20) and an upper housing (22) initially separated,
characterized in that the frangible membrane (18) has at least one weakening line (40) and that the weakening line is such that a deletion created in the lower housing (20) causes the rupture of the membrane ( 18) along the line of weakness (40). Emballage selon la revendication 1, caractérisé en ce que le logement inférieur (20) et le logement supérieur (22) contiennent chacun une substance, et en ce que l'emballage est tel que, retourné, une suppression crée dans le logement inférieur (20) provoque la chute de la substance initialement contenue dans le logement supérieur (22).Packaging according to claim 1, characterized in that the lower housing (20) and the upper housing (22) each contain a substance, and in that the package is such that, returned, a deletion created in the lower housing (20) ) causes the substance initially contained in the upper housing (22) to fall. Emballage selon la revendication 2, caractérisé en ce que la ligne d'affaiblissement (40) a un tracé courbe.Packaging according to claim 2, characterized in that the line of weakness (40) has a curved path. Emballage selon la revendication 2 ou 3, caractérisé en ce que la membrane (18) a, suivant la ligne d'affaiblissement (40), au moins un traitement mécanique d'affaiblissement sur au moins une couche de la membrane.Packaging according to claim 2 or 3, characterized in that the membrane (18) has, along the line of weakness (40), at least one weakening mechanical treatment on at least one layer of the membrane. Emballage selon la revendication 4, caractérisé en ce que ledit traitement mécanique d'affaiblissement comprend un affaiblissement microporeux.Packaging according to claim 4, characterized in that said mechanical weakening treatment comprises a microporous weakening. Emballage selon la revendication 4 ou 5, caractérisé en ce que le traitement mécanique d'affaiblissement comprend une découpe ou un poinçonnage partiel d'au moins une couche de la membrane avec l'aide d'une matrice de lames suivant la ligne d'affaiblissement (40).Packaging according to claim 4 or 5, characterized in that the mechanical weakening treatment comprises cutting or partial punching of at least one layer of the membrane with the aid of a matrix of blades along the line of weakening (40). Emballage selon l'une quelconque des revendications 2 à 6, caractérisé en ce que la membrane (18) a, suivant la ligne d'affaiblissement (40), un traitement d'affaiblissement par rayonnement à haute énergie suivant au moins une couche de la membrane (18).Packaging according to any one of claims 2 to 6, characterized in that the membrane (18) has, following the line of weakness (40), a high energy radiation attenuation treatment following at least one layer of the membrane (18). Emballage selon l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (18) comporte au moins deux couches (52, 54), la première couche (52) ayant subi un traitement d'affaiblissement par rayonnement à haute énergie suivant la ligne d'affaiblissement (40), et la deuxième couche (54) ayant subi un traitement mécanique d'affaiblissement suivant la ligne d'affaiblissement (40).Packaging according to any one of the preceding claims, characterized in that the membrane (18) comprises at least two layers (52, 54), the first layer (52) having undergone high energy radiation attenuation treatment according to the weakening line (40), and the second layer (54) having undergone weakening mechanical treatment along the line of weakness (40). Emballage selon l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (18) comporte au moins une couche d'un polymère dont la phase cristalline est en masse au moins égale à 50 % et, de préférence, supérieure à 80 %.Packaging according to any one of the preceding claims, characterized in that the membrane (18) comprises at least one layer of a polymer whose crystalline phase is in mass at least equal to 50% and, preferably, greater than 80%. . Emballage selon l'une quelconque des revendications précédentes, caractérisé en ce que le fond (23) du pot est déformable vers l'intérieur du logement inférieur (20).Packaging according to any one of the preceding claims, characterized in that the bottom (23) of the pot is deformable towards the interior of the lower housing (20). Emballage selon l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (18) comporte au moins une couche (54) de polystyrène.Packaging according to any one of the preceding claims, characterized in that the membrane (18) comprises at least one layer (54) of polystyrene. Emballage selon l'une quelconque des revendications 2 à 7, caractérisé en ce que la force de rupture à l'étirement de la membrane (18) suivant la ligne d'affaiblissement (40) est comprise entre 4 N/15 mm et 40 N/15 mm.Packaging according to any one of claims 2 to 7, characterized in that the tensile breaking force of the membrane (18) along the line of weakness (40) is between 4 N / 15 mm and 40 N / 15 mm. Emballage selon l'une quelconque des revendications précédentes, caractérisé en ce que la substance contenue dans le logement supérieur (20) est déposée au contact de la membrane (18).Packaging according to any one of the preceding claims, characterized in that the substance contained in the upper housing (20) is deposited in contact with the membrane (18).
EP06290260A 2005-02-16 2006-02-15 Cup-shaped container for two food products Withdrawn EP1693307A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0501591A FR2882036B1 (en) 2005-02-16 2005-02-16 PACKAGE COMPRISING A CLEAN JAR TO CONTAIN TWO FOOD SUBSTANCES

Publications (1)

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EP1693307A1 true EP1693307A1 (en) 2006-08-23

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FR (1) FR2882036B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012138520A1 (en) * 2011-04-06 2012-10-11 The Quaker Oats Company Multicompartment cup

Citations (7)

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Publication number Priority date Publication date Assignee Title
US3186850A (en) * 1960-04-28 1965-06-01 Anthony Roy Cup containing beverage ingredient
FR2002381A1 (en) * 1968-02-22 1969-10-17 Landis & Gyr Ag
FR2271138A1 (en) * 1974-05-15 1975-12-12 Minella Anstalt Drink container containing straw and drink - has base movable to upper position to force straw through top
US4039435A (en) * 1975-12-11 1977-08-02 Sydney Paul Narva Unitary compartmentalized container
US4061782A (en) * 1975-05-27 1977-12-06 Redimix Beverages Limited Beverage package cup
US5514394A (en) * 1994-07-29 1996-05-07 Lenahan; Robert F. Cereal package
WO1997009242A1 (en) * 1995-09-05 1997-03-13 Thermolex Kft Package and storage device for storing separately effervescent tablets and effervescent powders resp. granules and their solvent materials

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186850A (en) * 1960-04-28 1965-06-01 Anthony Roy Cup containing beverage ingredient
FR2002381A1 (en) * 1968-02-22 1969-10-17 Landis & Gyr Ag
FR2271138A1 (en) * 1974-05-15 1975-12-12 Minella Anstalt Drink container containing straw and drink - has base movable to upper position to force straw through top
US4061782A (en) * 1975-05-27 1977-12-06 Redimix Beverages Limited Beverage package cup
US4039435A (en) * 1975-12-11 1977-08-02 Sydney Paul Narva Unitary compartmentalized container
US5514394A (en) * 1994-07-29 1996-05-07 Lenahan; Robert F. Cereal package
WO1997009242A1 (en) * 1995-09-05 1997-03-13 Thermolex Kft Package and storage device for storing separately effervescent tablets and effervescent powders resp. granules and their solvent materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012138520A1 (en) * 2011-04-06 2012-10-11 The Quaker Oats Company Multicompartment cup

Also Published As

Publication number Publication date
FR2882036A1 (en) 2006-08-18
FR2882036B1 (en) 2009-12-25

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