EP1912877B1 - Versiegelte, flexible, hochtemperaturresistente verpackung für lebensmittelprodukte - Google Patents

Versiegelte, flexible, hochtemperaturresistente verpackung für lebensmittelprodukte Download PDF

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Publication number
EP1912877B1
EP1912877B1 EP06794516A EP06794516A EP1912877B1 EP 1912877 B1 EP1912877 B1 EP 1912877B1 EP 06794516 A EP06794516 A EP 06794516A EP 06794516 A EP06794516 A EP 06794516A EP 1912877 B1 EP1912877 B1 EP 1912877B1
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EP
European Patent Office
Prior art keywords
layer
heatsealable
flexible package
plastics material
package according
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.)
Not-in-force
Application number
EP06794516A
Other languages
English (en)
French (fr)
Other versions
EP1912877A1 (de
Inventor
Alexandre Paviot
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.)
Papiers A Paviot
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Papiers A Paviot
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Papiers A Paviot filed Critical Papiers A Paviot
Publication of EP1912877A1 publication Critical patent/EP1912877A1/de
Application granted granted Critical
Publication of EP1912877B1 publication Critical patent/EP1912877B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/16—Wrappers or flexible covers with provision for excluding or admitting light
    • B65D65/18—Wrappers or flexible covers with provision for excluding or admitting light with some areas transparent and others opaque
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/522—Inspection openings or windows

Definitions

  • the present invention relates to the technical field of packaging of food products in the general sense and more specifically relates to the technical field of the packaging of food products at their point of sale and / or packaging and in particular food products sold at retail, in particular big or half big.
  • the patent FR 2,775,252 proposed to use a sheath composed at least partly of a heat-sealable material.
  • This sheath is made from two composite sheets superimposed and assembled by bonding or welding, for example, at their longitudinal edges.
  • Each composite sheet has an outer layer of aluminum, an inner layer of low density polyethylene and a layer of paper covered with a layer of low density polyethylene.
  • This sheath packaged in roll is intended to be cut at the place of use in a length slightly greater than that of the product to be packaged.
  • one end of the sheath is cut and closed simultaneously by heat sealing in order to produce a bag. Then, after introduction of the product to be packaged in the bag thus produced, the other end of the sheath is heat sealed so as to obtain a sealed package.
  • Such a flexible package is particularly useful for packaging fresh or frozen food products such as fish or meat at the retail sale, wholesale or semi-wholesale.
  • Such a package has a completely sealed character and particularly easy to achieve by heat sealing.
  • it is necessary to open the packaging and to transfer the food product in a suitable container for cooking or re-heating the food product. It thus appears the need to have a suitable packaging to allow the rapid and easy packaging of a food product while offering the advantage of also allowing the cooking or re-heating of the food product thus conditioned.
  • the patent US 5,273,797 discloses a packaging for food products made from a composite sheet comprising between a thermoplastic structure layer and a heat-sealable layer, a barrier layer including aluminum.
  • the object of the invention is therefore to provide a flexible package adapted to allow the simple and fast packaging of food products while allowing the cooking or re-heating of the food product packaged by such packaging.
  • the present invention relates to a flexible sealable packaging for food products according to the subject of claim 1.
  • each composite sheet comprising at least the aluminum layer, the plastic layer and the binder layer is heat-sealable at a temperature between 100 ° C and 200 ° C and advantageously between 160 ° C and 190 ° C.
  • each composite sheet comprising at least the aluminum layer, the heat-sealable plastic layer and the binder layer is capable of withstanding a temperature of at least 120 ° C. and advantageously at 140 ° C. C for a period of at least 25 minutes.
  • the flexible packaging according to the invention also comprises a layer of paper resistant to high temperature interposed between the heat-sealable plastic layer and the heat-sealable binder layer.
  • the high temperature resistant heat-sealable binder layer is produced by extrusion of high temperature resistant polymers or by coextrusion of high temperature resistant polymers.
  • the heat-resistant plastic layer resistant to high temperature is made of polypropylene and preferably polyethylene terephthalate.
  • the heat-sealable plastic layer comprises, on the side of the binder layer, a non-heat-sealable face and, on the side of the food product contact face of the sheet, a heat-sealable face.
  • Another object of the invention is to provide a flexible package having a window for viewing the packaged food product before and during cooking.
  • the flexible packaging according to the invention comprises at least one composite sheet or each composite sheet is formed in two parts interconnected by a plastic film at least translucent resistant to high temperature and fixed on the contact surface food product of each of the parts of the composite sheet so as to constitute a viewing window, said film having on the side of the heat-sealable plastic layer, a non-heat-sealable side and on the other side of the sheet, a heat-sealable side which constitutes with the face of the plastic layer of the sheets, a food product contact face.
  • the plastic film is welded to both parts of the composite sheet and is made of polypropylene or preferably polyethylene terephthalate.
  • the two composite sheets comprise a plastic film for each presenting a window display, at least a portion of the films forming the windows being arranged superimposed to facilitate the opening of the flexible packaging.
  • the two superposed composite sheets form a sheath.
  • two superimposed composite sheets are obtained by a sheet folded on itself in one or two layers.
  • the two superposed composite sheets are assembled at their edges to form a bag having an access opening to its internal volume.
  • the access opening is closed by heat sealing, after the introduction of a food product into the internal volume of the package, to form a closed sealed package.
  • the Fig. 1 represents an exemplary embodiment of a flexible package in the form of a sheath cut from a sheath 2 packaged generally in roll.
  • the sheath 2 comprises two composite sheets 4 and 5 superimposed which in the illustrated example are assembled together at their longitudinal edges 6 by heat sealing or heat sealing.
  • This sheath 2 is cut to the desired length to contain a food product 7 such as fish.
  • a transverse weld connecting the two longitudinal edges 6 is formed on an end 11 of the flexible packaging 1 which is thus in the form of a bag that can be opened by the other transverse end 12 having an opening giving access to the internal volume of the bag.
  • the sheath forming the flexible packaging 1 is formed from two composite sheets 4, 5 placed in superposed position one against the other and assembled along their two longitudinal edges 6.
  • the flexible package 1 in the form of a seamless sheath or a sheath with a single weld obtained by folding a sheet on itself and welding the free edges opposite to the fold.
  • the flexible package 1 can be made from a sheet folded on itself in one or two layers to obtain the two superimposed composite sheets 4 and 5 which are assembled at their edges to form a bag having an access opening to its internal volume which is closed by heat sealing after introduction of the product to be packaged inside the flexible packaging.
  • the flexible packaging 1 is intended to comprise at least two superimposed composite sheets 4, 5 assembled at their edges by heat sealing or heat sealing or gluing to form a bag with a opening for the introduction of the product to be packaged. The opening of the bag is then closed by heat sealing or heat sealing.
  • Each composite sheet 4, 5 comprises at least between a layer of aluminum 15 and a layer of heat sealable plastic material resistant to high temperature 16, a layer 17 of high temperature resistant binder.
  • Each composite sheet 4, 5 thus has two outer faces constituted by the aluminum layer 15 and the heat-sealable plastic layer 16.
  • the composite sheets 4, 5 are arranged so that the heat-sealable plastic layers 16 are facing each other to constitute the inner surface of the flexible package intended to be in contact with the food product to be packaged .
  • each plastic layer 16 has a surface 16a so-called food product contact.
  • Each composite sheet 4, 5 has a heat-sealable plastic layer 16 facing each other by their food product contact surfaces 16a thus allowing heat-sealing or heat-sealing of the two composite sheets 4, 5 between them.
  • the heat-sealable plastic layers 16 are arranged against each other, the application of a localized pressure on the composite sheets 4, 5 for example at the transverse edges of the sheath, completed by a heating localized allows to obtain a weld composite sheets 4, 5 between them.
  • each composite sheet 4, 5 comprising at least the aluminum layer 15, the plastic layer 16 and the binder layer 17 is heat-sealable at a temperature between 100 ° C and 200 ° C and advantageously between 160 ° C and 190 ° C.
  • each composite sheet 4, 5 comprising the aluminum layer 15, the plastic layer heat-sealable material 16 and the binder layer 17 is capable of withstanding a temperature of at least 120 ° C for a minimum period of at least 25 minutes.
  • a flexible package 1 comprising the composite sheets 4, 5 must be able to withstand a temperature of at least 120 ° C for a minimum of 25 minutes to allow to cook or reheat, a conventional mass of a food product packaged by such a flexible package.
  • each composite sheet 4, 5 according to the invention is capable of withstanding a temperature of at least 140 ° C. for a minimum duration of 25 minutes.
  • each composite sheet 4, 5 comprising the aluminum foil 15, the heat-sealable plastic layer 16 and the binder layer 17 is able to withstand a temperature at most equal to 220 ° C that is to say less than or equal to 220 ° C for a maximum period of 90 minutes.
  • each composite sheet 4, 5 is capable of withstanding a temperature at most equal to 220 ° C for a maximum period of between 45 minutes and 75 minutes.
  • Each composite sheet 4, 5 comprising the aluminum layer 15, the heat-sealable plastic layer 16 and the binder layer 17 is thus capable of being subjected to a predetermined temperature for a period of time suitable for cooking and / or refurnishing. temperature of the food product placed inside the flexible packaging.
  • the aluminum layer 15, the heat-sealable plastic layer 16 and the binder layer 17 are chosen to withstand the temperatures indicated above for the time indicated above, that is, to say that the technical characteristics of these layers 16, 17 are not altered by heat so that delamination, burns or blisters do not occur.
  • the flexible packaging 1 retains its integrity at the end of the heating period chosen. In the conditions defined above, the flexible packaging 1 thus retains its waterproof character.
  • the composite sheets 4, 5 are not drilled and the weld or welds made to close the bag continues (s) to perform their function of sealing the sheets together.
  • the high temperature resistant heat-sealable binder layer 17 is made by extrusion of high temperature resistant polymers or by coextrusion of high temperature resistant polymers.
  • it can be used as a binder layer, a low density polyethylene (LDPE), a polypropylene, a polyester or glue.
  • LDPE low density polyethylene
  • polypropylene a polypropylene
  • polyester or glue a polypropylene
  • the layer of heat-resistant plastics material resistant to high temperature 16 is made for example of polypropylene.
  • this heat-sealable plastic layer 16 is a polyethylene terephthalate.
  • the layer of heat-resistant plastics material resistant to high temperature 16 is in the form of a film consisting of the material or materials described above.
  • the layer of heat-resistant plastics material 16 resistant to high temperature comprises, on the side of the binder layer 17, a non-heat-sealable face and on the side of the food product contact face 16a of the sheet, one side sealable.
  • each composite sheet 4, 5 also comprises a layer of high temperature resistant paper interposed between the heat-sealable plastic layer 16 and the heat-sealable binder layer 17.
  • the layer of heat-resistant plastics material resistant to high temperature 16 is in the form of a film, an extrusion or a co-extrusion consisting of the materials described above such as polypropylene or terephthalate of polyethylene.
  • Fig. 3 and 4 illustrate another alternative embodiment of a flexible package 1 implementing at least one window 20 of visualization of the food product 7 placed inside the flexible packaging to visualize the content and appreciate the cooking of the food product.
  • the flexible packaging 1 comprises at least one composite sheet 4 formed in two parts in the example illustrated, and interconnected by a plastic film at least translucent 30 resistant to high temperature and fixed on the food product contact face 16a of each of the parts of the composite sheet.
  • the plastic film 30 is made for example of polypropylene and is advantageously a polyethene terepthalate. This plastic film 30 thus constitutes a viewing window 20 located between two parts of a composite sheet.
  • the plastic film 30 has a non-heat-sealable face 30a , facing the food product contact face 16a of the heat-sealable plastic layer 16 so as to form in combination with the aluminum layer 15, a face of the composite sheet 4.
  • This plastic film 30 has opposite its face 30a, a heat sealable face 30b which in combination with the food product contact face 16a of the plastic layer 16 of the sheets, the other side of the composite sheet 4 which constitutes a contact surface food product.
  • the plastic film 30 is fixed by a heat-sealing or heat-sealing operation on the two parts of the composite sheet 4.
  • a flexible package 1 can be produced from a composite sheet 4 equipped with such a window 20 and a composite sheet 5 as described in Fig. 2 .
  • the front of the flexible package 1 has a window 20 while the back does not.
  • each composite sheet 4, 5 is provided with a viewing window 20 as illustrated to the Fig. 5, 6 .
  • the flexible packaging 1 is obtained from a sheath equipped on either side of a window 20.
  • the flexible package 1 is obtained by a composite sheet provided along its entire length with a window 20, folded along a line perpendicular to the window 20 so as to obtain a flexible package 1 equipped with a continuous window 20 extending on both sides of the packaging.
  • the flexible packaging 1 comprises a duplex, a viewing window 20.
  • the plastic films 30 forming the windows 20 are arranged so as to be superimposed to facilitate the opening of the flexible packaging . It should be noted that the presence of a plastic film 30 on a front face or vis-à-vis on the front and back sides of the flexible package facilitates the opening of the flexible packaging.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Claims (13)

  1. Flexible dichte Verpackung für Lebensmittel, welche dazu bestimmt ist, für ein Kochen oder Wiederaufwärmen einem Erhitzen unterzogen zu werden, wobei die Verpackung dazu bestimmt ist, zwei übereinander liegende, heißsiegelbare Verbundfolien zu umfassen, wobei jede Verbundfolie (4, 5) wenigstens zwischen einer Aluminiumschicht (15) und einer heißsiegelbaren, hochtemperaturbeständigen Kunststoffschicht (16) eine heißsiegelbare, hochtemperaturbeständige Bindemittelschicht (17) umfaßt, dadurch gekennzeichnet, daß jede Verbundfolie (4, 5), die wenigstens die Aluminiumschicht (15), die heißsiegelbare Kunststoffschicht (16) und die Bindemittelschicht (17) umfaßt, geeignet ist, einer Temperatur von wenigstens gleich 120 °C und vorteilhafterweise 140 °C, über eine Dauer von wenigstens 25 Min. standzuhalten und einer Temperatur von höchstens gleich 220 °C, über eine maximale Dauer von 90 Min. und vorteilhafterweise eine maximale Dauer zwischen 45 Min. und 75 Min. standzuhalten.
  2. Flexible Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß jede Verbundfolie (4, 5), die wenigstens die Aluminiumschicht (15), die Kunststoffschicht (16) und die Bindemittelschicht (17) umfaßt, bei einer Temperatur zwischen 100°C und 200 °C und vorteilhafterweise zwischen 160 °C und 190 °C heißsiegelbar ist.
  3. Flexible Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß sie auch eine hochtemperaturbeständige Papierschicht umfaßt, die zwischen der heißsiegelbaren Kunststoffschicht und der heißsiegelbaren Bindemittelschicht eingefügt ist.
  4. Flexible Verpackung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die heißsiegelbare, hochtemperaturbeständige Bindemittelschicht (17) durch eine Extrusion von hochtemperaturbeständigen Polymeren oder durch eine Coextrusion von hochtemperaturbeständigen Polymeren hergestellt ist.
  5. Flexible Verpackung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die heißsiegelbare, hochtemperaturbeständige Kunststoffschicht (16) aus Polypropylen und vorteilhafterweise aus Polyethylenterephthalat gefertigt ist.
  6. Flexible Verpackung nach Anspruch 5, dadurch gekennzeichnet, daß die heißsiegelbare Kunststoffschicht (16) auf der Seite der Bindemittelschicht (17) eine nicht heißsiegelbare Fläche und auf der Seite der Lebensmittelkontaktfläche (16a) der Folie eine heißsiegelbare Fläche aufweist.
  7. Flexible Verpackung nach Anspruch 6, dadurch gekennzeichnet, daß wenigstens eine Verbundfolie (4, 5) oder jede Verbundfolie aus zwei Teilen ausgebildet ist, die durch einen wenigstens durchscheinenden, hochtemperaturbeständigen Kunststoffilm (30), der an der Lebensmittelkontaktfläche (16a) eines jeden der Teile der Verbundfolie befestigt ist, um ein Sichtfenster (20) zu bilden, untereinander verbunden sind, wobei der Film (30) auf der Seite der heißsiegelbaren Kunststoffschicht eine nicht heißsiegelbare Fläche (30a) und auf der anderen Seite der Folie eine heißsiegelbare Fläche (30b) aufweist, die mit der Fläche (16a) der Kunststoffschicht (16) der Folien eine Lebensmittelkontaktfläche bildet.
  8. Flexible Verpackung nach Anspruch 7, dadurch gekennzeichnet, daß der Kunststoffilm (30) auf die beiden Teile der Verbundfolie geschweißt und aus Polypropylen oder vorteilhafterweise aus Polyethylenterephthalat gefertigt ist.
  9. Flexible Verpackung nach Anspruch 8, dadurch gekennzeichnet, daß die beiden Verbundfolien (4, 5) einen Kunststoffilm (30) umfassen, um jeweils ein Sichtfenster (20) aufzuweisen, wobei wenigstens ein Teil der die Fenster (20) bildenden Filme (30) darüber liegend angeordnet ist, um das Öffnen der flexiblen Verpackung zu erleichtern.
  10. Flexible Verpackung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die beiden übereinander liegenden Verbundfolien (4, 5) eine Hülle bilden.
  11. Flexible Verpackung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß zwei übereinander liegende Verbundfolien (4, 5) durch eine entlang von einer oder zwei Faltlinie(n) auf sich selbst gefaltete Folie erhalten werden.
  12. Flexible Verpackung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die beiden übereinander liegenden Verbundfolien (4, 5) im Bereich ihrer Ränder verbunden sind, um einen Beutel mit einer Zugangsöffnung zu seinem Innenraum zu bilden.
  13. Flexible Verpackung nach Anspruch 12, dadurch gekennzeichnet, daß die Zugangsöffnung nach Einbringen eines Lebensmittels in den Innenraum der Verpackung durch Heißsiegeln verschlossen wird, um eine geschlossene, dichte Verpackung zu bilden.
EP06794516A 2005-08-09 2006-08-01 Versiegelte, flexible, hochtemperaturresistente verpackung für lebensmittelprodukte Not-in-force EP1912877B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0508446A FR2889690B1 (fr) 2005-08-09 2005-08-09 Emballage souple etanche resistant a haute temperature pour produit alimentaire
PCT/FR2006/050775 WO2007017608A1 (fr) 2005-08-09 2006-08-01 Emballage souple etanche resistant a haute temperature pour produit alimentaire

Publications (2)

Publication Number Publication Date
EP1912877A1 EP1912877A1 (de) 2008-04-23
EP1912877B1 true EP1912877B1 (de) 2012-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06794516A Not-in-force EP1912877B1 (de) 2005-08-09 2006-08-01 Versiegelte, flexible, hochtemperaturresistente verpackung für lebensmittelprodukte

Country Status (3)

Country Link
EP (1) EP1912877B1 (de)
FR (1) FR2889690B1 (de)
WO (1) WO2007017608A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2828178T3 (pl) 2012-03-19 2016-12-30 Zapakowany przyprawowy produkt
EA027275B1 (ru) * 2012-09-14 2017-07-31 Юнилевер Н.В. Способ приготовления приправленного пищевого продукта кулинарной обработки и упакованная композиция приправы для использования в данном способе
FR3077807B1 (fr) * 2018-02-13 2022-02-11 Papiers A Paviot Emballage souple etanche pour produit alimentaire a cuisson au barbecue
WO2024101409A1 (ja) * 2022-11-11 2024-05-16 株式会社細川洋行 耐熱容器及び調理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0532288Y2 (de) * 1986-04-07 1993-08-18
US5273797A (en) * 1987-01-08 1993-12-28 Exxon Chemical Patents Inc. Food package, retort lidding, and coextruded film therefor
BR9102998A (pt) * 1990-08-02 1992-04-28 Du Pont Embalagem de alimentos para cozimento por microondas com costura facil de abrir
FR2669605A1 (fr) * 1990-11-26 1992-05-29 Palmilandes Sa Procede et emballage de conservation de denrees alimentaires et denrees alimentaires conservees.
FR2775252B1 (fr) * 1998-02-26 2000-04-07 Papiers A Paviot Procede d'emballage, destine notamment a des produits alimentaires vendus au detail, et emballage correspondant
FR2780706B1 (fr) * 1998-07-02 2003-08-29 Papiers A Paviot Papier thermoscellable destine a l'emballage de produits frais et emballage utilisant un tel papier
EP1031515A1 (de) * 1999-02-26 2000-08-30 Policarta S.r.l. Luftdurchlässige Verbundbahn

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WO2007017608A1 (fr) 2007-02-15
FR2889690A1 (fr) 2007-02-16
EP1912877A1 (de) 2008-04-23
FR2889690B1 (fr) 2007-11-02

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