EP2631195B1 - Sachet et son procédé de fabrication - Google Patents

Sachet et son procédé de fabrication Download PDF

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Publication number
EP2631195B1
EP2631195B1 EP20120156628 EP12156628A EP2631195B1 EP 2631195 B1 EP2631195 B1 EP 2631195B1 EP 20120156628 EP20120156628 EP 20120156628 EP 12156628 A EP12156628 A EP 12156628A EP 2631195 B1 EP2631195 B1 EP 2631195B1
Authority
EP
European Patent Office
Prior art keywords
pouch
outer films
seal
peripheral edge
films
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
EP20120156628
Other languages
German (de)
English (en)
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EP2631195A1 (fr
Inventor
Stefano Capitani
Jvanohe Rizzi
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.)
Cryovac LLC
Original Assignee
Cryovac LLC
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 Cryovac LLC filed Critical Cryovac LLC
Priority to ES12156628.5T priority Critical patent/ES2541752T3/es
Priority to EP20120156628 priority patent/EP2631195B1/fr
Priority to PCT/EP2013/052945 priority patent/WO2013124201A1/fr
Publication of EP2631195A1 publication Critical patent/EP2631195A1/fr
Application granted granted Critical
Publication of EP2631195B1 publication Critical patent/EP2631195B1/fr
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
    • 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
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • 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
    • B65D75/527—Tear-lines for separating a package into individual packages
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants

Definitions

  • the present invention relates to a pouch, specifically for liquid or granular products.
  • the invention relates to an inflatable pouch.
  • the present invention also relates to a method of manufacturing said pouch.
  • Pouches are well-known in the art. They are for example used to package liquid or granular products for food and medical use.
  • a known pouch typically consists of two superimposed walls of flexible plastic material, such as polyethylene, bonded to each other, typically heat-sealed, at peripheral edges thereof, so as to form an internal space of the pouch, suitable for being filled with the product to be packaged.
  • the pouch can be also provided with a closure spout.
  • the pouch is not impervious to the transmission of contaminant agents, such as microorganisms, oxygen, other gases and water vapour, then the product packaged in the pouch can undergo a degradation by transmission through the walls.
  • oxygen normally permeates the internal space along the sealed peripheral edges of the pouch.
  • a gas more particularly, oxygen
  • other contaminant agents which can pass through the pouch walls and degrade the product packaged therein might be considered in place or in combination with the aforementioned gas.
  • aseptic and ultra clean pouches are available on the market. They are typically made of laminate materials, for example comprising one or more layers of polypropylene and a layer of aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • laminate materials for example comprising one or more layers of polypropylene and a layer of aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • the aseptic and ultra clean pouches are produced in aseptic and ultra clean filling systems.
  • the aseptic filling systems provide commercial sterility, whereby no unwanted organisms will grow in the filled pouch, whereas the ultra clean filling reduces the presence of organisms to levels approaching zero, but are not designed to ensure zero contamination.
  • EP 1 2 42 293 discloses a packaging container made of plastic material consisting of a flat hose, which is sealed at least on one side and forms a bag-shaped container.
  • the flat hose is surrounded by two flat film sections, which overlap the edge regions.
  • the hose has a filling opening and connection seams.
  • US 5,588,532 discloses an inflatable package comprising a pair of overlying inner panels defining an item-receiving zone therebetween to have the object received therein, a pair of outer panels each overlying a respective one of the inner panels to form an inflatable chamber therebetween and inflating means for at least partially inflating the inflatable chamber with a filler medium.
  • US 4,872,558 discloses a packaging system including an outer bag defining a sealed chamber therein, an inner bag defining a pocket adapted to retain an article therein and means for filling the chamber with a filling medium to substantially encapsulate and support the inner bag and article within the outer bag.
  • US 4 454 945 discloses a pouch made from two tubular films.
  • the superimposed walls typically heat-sealed, they can delaminate, i. e. the walls can partially separate from each other. As a result, ruptures or micro-perforations can generate at the sealed edges, thus causing the oxygen to enter the pouch, so deteriorating the product present therein.
  • the laminate materials are thick, this considerably increasing the manufacturing and shipment costs of the pouch, as well as the environmental impact of the pouch in that more plastic is needed for producing it and needed to be disposed at the end of its lifecycle.
  • the pouch when the pouch is produced in aseptic or ultra clean filling systems, it is not possible to use a printed film, because the ink is dissolved when the film enters a chemical decontamination area, e.g. it is dipped in a tank containing for example a hydrogen peroxide decontaminating liquid. In order to avoid the ink to be dissolved, expensive trap printing systems are used, thus further increasing the production costs of the pouch.
  • the present invention provides a pouch, particularly for liquid or granular products, which is suitable for increasing the gas-barrier effect at the sealed edges thereof, meanwhile making it possible to reduce the material thickness and, consequently, the manufacturing and shipment costs of the pouch.
  • the present pouch can be easily printed avoiding any problem of ink discoloration.
  • the present invention in a first aspect thereof, relates to a pouch comprising:- an inner pouch comprising a bottom surface and opposite side walls extending upwardly from the bottom surface, said opposite side walls being associated to each other along at least one peripheral edge thereof, thereby delimiting a product-filling area; characterized in that the pouch comprises a pair of outer films, each overlying a respective one of said opposite side walls of the inner pouch, said outer films being associated to each other through a first seal at said at least one peripheral edge of the inner pouch; and in that the outer films are further associated to each other through a second seal spaced apart from the first seal with respect to the product-filling area, thereby delimiting between said first seal and second seal at least one inflatable chamber filled with an inert gas.
  • the pouch of the present invention has enhanced properties in terms of gas-barrier at the sealed edges thereof,
  • gas-barrier is meant the capability to limit to a certain extent the passage of contaminant agent.
  • the desired gas-barrier properties are achieved by a layer, seal or structure when the OTR (Oxygen Transmission Rate) evaluated at 23°C and 0% R.H. according to ASTM D-3985 is lower than 500 cm 3 /m 2 •day•atm, preferably lower than 100 cm 3 /m 2 ⁇ day ⁇ atm, more preferably lower that 50 cm 3 /m 2 ⁇ day ⁇ atm.
  • the outer films are directly associated, one inflatable chamber being defined between the outer films.
  • the outer films are sealed at the at least one peripheral edge of the inner pouch, one inflatable chamber being defined between each outer film and the at least one peripheral edge.
  • each of the outer film is sealed around the perimeter of a respective side wall of the inner pouch. This advantageously ensures a better matching between the inner pouch and the outer walls.
  • the inert gas filling the at least one inflatable chamber is nitrogen. This advantageously increases the gas-barrier properties of the pouch.
  • different inert gases can be used.
  • the inner pouch is made of a flexible plastic material, such as polyethylene.
  • the inner pouch is made of a material with gas-barrier properties, such as a mono or multilayer film or laminate comprising one or more layers of gas-barrier resins, such as polypropylene, ethylvinyl alcohol, polyvinylidenchloride, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • a material with gas-barrier properties such as a mono or multilayer film or laminate comprising one or more layers of gas-barrier resins, such as polypropylene, ethylvinyl alcohol, polyvinylidenchloride, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • PET-SiOx Polyethylene with Deposited Silicon Oxide
  • the outer films are made of a flexible plastic material, such as polyethylene.
  • the outer films are made of a material with gas-barrier properties, such as a mono or multilayer film or laminate comprising one or more layers of gas-barrier resins, such as polypropylene or others, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • a material with gas-barrier properties such as a mono or multilayer film or laminate comprising one or more layers of gas-barrier resins, such as polypropylene or others, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • PET-SiOx Deposited Silicon Oxide
  • At least one outer film has a printed surface.
  • the outer printed film needs not to undergo any decontamination process but is applied externally to the aseptic inner pouch. This advantageously allows to have a printed pouch and avoids expensive trap printing systems to be used when the pouch is produced in aseptic or ultra clean filling systems, thus reducing the pouch production costs.
  • the present invention relates to a method of manufacturing a pouch comprising:
  • associating the outer films through a second seal comprises directly associating the outer film, one inflatable chamber being defined between the outer films.
  • associating the outer films through a second seal comprises sealing the outer films to said at least one peripheral edge of the inner pouch, one inflatable chamber being defined between each outer film and said at least one peripheral edge.
  • a plurality of inner pouches are provided, said plurality of inner pouches being aligned along a feeding direction, before feeding said pair of outer films.
  • said plurality of inner pouches (20) are connected to each other at the peripheral edge.
  • associating the outer films to the inner pouch comprises sealing each outer films around the perimeter of a respective side wall of the inner pouch. This advantageously ensures a better matching between the inner pouch and the outer walls.
  • associating the outer films to each other through a second seal comprises associating the outer film through a weakening line (L).
  • L weakening line
  • the present invention relates to a set of pouches, each pouch being of the type discussed above, wherein at the outer films said pouches are associated to each other through respective weakening lines.
  • a pouch in accordance with the present invention is shown.
  • Such a pouch is globally indicated with 10 and comprises an inner pouch 20 suitable for being filled with a product to be packaged, for example a liquid or granular food product.
  • the inner pouch 20 comprises a bottom surface 22 and opposite side walls 24, which extend upwardly from the bottom surface 22.
  • the opposite side walls 24 are associated to each other at selected overlying peripheral edges thereof 24a, 24b, 24c, thereby delimiting with the bottom surface 22 an area A suitable for being filled with the product to be packaged.
  • the opposite side walls 24 of the inner pouch 20 are heat sealed along two opposite longitudinal peripheral edges 24a, 24b and along a top transversal peripheral edge 24c.
  • the inner pouch 20 is provided, at the upper portion thereof, with a closure spout 26.
  • the inner pouch 20 is made of a flexible plastic material, such as polyethylene, preferably having a thickness of about 20 microns or less. More preferably, the inner pouch 20 is made of a material having gas-barrier properties, for example a laminate comprising one or more layers of gas-barrier resins, such as polypropylene, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • a material having gas-barrier properties for example a laminate comprising one or more layers of gas-barrier resins, such as polypropylene, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • the pouch 10 further comprises a pair of outer films 30, each overlying a respective one of the opposite side walls 24 of the inner pouch 20.
  • the outer films 30 are preferably rectangular, with the size of the outer films 30 being selected according to the size of the inner pouch 20, and have an inner surface 30a, which in use faces a respective side wall 24 of the inner pouch 20, and an outer surface 30b, opposite to the inner surface 31.
  • at least one of the outer films 30 has a printed surface, more preferably the outer surface 30b thereof.
  • the outer films 30 are also made of flexible plastic material, such as polyethylene.
  • the outer films 30 are also made of a material having barrier to oxygen properties, for example a laminate comprising one or more layers of gas-barrier resins, such as polypropylene, optionally including one or more layers of non plastic material, such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • gas-barrier resins such as polypropylene
  • non plastic material such as aluminium or polyethylene with Deposited Silicon Oxide (PET-SiOx).
  • a pouch 10 according a first embodiment of the present invention is shown.
  • the outer films 30 are associated to each other through first seals 21, 23 provided at a respective longitudinal peripheral edge 24a, 24b of the inner pouch 20.
  • the outer films 30 are directly associated to each other through second seals 31, 33, each substantially parallel to and spaced apart from a respettive first seal 21, 23 with respect to the product-filling area A.
  • An inflatable chamber 34 is thus delimited between the first seal 21, 23 and the second seal 31, 33.
  • one inflatable chamber 34 is defined between the outer films 30, which is filled with an inert gas, preferably Nitrogen.
  • a pouch 10' according a further embodiment of the present invention is shown.
  • the outer films 30 are also associated to each other through first seals 21, 23 provided at a respective longitudinal peripheral edge 24a, 24b of the inner pouch 20.
  • the outer films 30 are sealed at the peripheral longitudinal edges 24a, 24b of the inner pouch 20 through second seals 31', 33', which are substantially parallel and spaced apart from the corresponding first seals 21, 23.
  • the longitudinal peripheral edges 24a, 24b form thus a partition wall between the outer films 30.
  • One inflatable chamber 34' is so delimited between the first seal 21, 23 and the second seal 31', 33'.
  • one inflatable chamber 34' is defined between each outer film 30 and the longitudinal peripheral edges 24a, 24b.
  • the inflatable chambers 34' are filled with an inert gas, preferably Nitrogen.
  • an assembly of a plurality of pouches 10, 10', preferably three pouches 10, 10', is illustrated.
  • the pouches 10, 10' are associated through the outer films 30 and weakening lines L are provided between adjacent pouches at the second seals associating the outer films to each other.
  • Each weakening line L is preferably made of a serrated seal, which advantageously enable easier separation of the pouches by the user.
  • Each inner pouch 20 of the plurality of inner pouches 20 is obtained by using any suitable manufacturing method known in the art, as for example the one disclosed in EP 2055 638 .
  • a step of decontaminating each of the inner pouches 20 with a substance which is chemically active as a decontaminating agent is carried out, thus obtaining a plurality of aseptic or ultra clean inner pouches 20.
  • the decontaminating agent may be a hydrogen peroxide bath.
  • the inner pouches 20 optionally decontaminated are then aligned thereby resulting equally spaced from one another along a feeding direction D.
  • the aligned inner pouches 20 are supported, at the bottom surface 22 thereof, by a conveyor belt or, alternatively suspended by gripping means, gripping a respective inner pounch 20, for example at its closure spout 26. In the event of the manufacturing of a single pouch 10, the alignment is not provided.
  • each outer film 30 is provided, each fed by a respective supply roll 2 along the feeding direction D, with the inner pouch 20 first coming along the feeding direction D being arranged between the outer films 30.
  • each outer film 30 is made to adhere to a respective side wall 24 of the inner pouch 20, for example by means of a respective deviation roller 4 suitably provided at each side of the inner pouches 20.
  • a pair of sealing frames 5 are provided, each comprising a bottom sealing plate 5a, an upper sealing plate 5b and a pair of side sealing plates 5c and 5d, which connect the bottom and upper sealing plates 5a and 5b.
  • each sealing frame 5 is provided with a respective recess 5e, preferably a semicircular recess.
  • the recesses 5e are suitable for embracing the closure spout 26 when the sealing frames 5 are pressed against the respective side wall 24 of the inner pouch 20, as shown in greater detail in figure 5 .
  • the outer films 30 are associated to each other through first seals 21, 23 at longitudinal peripheral edges 24a, 24b of the inner pouch.
  • the outer films 30 are further directly associated to each other through a second seal 33 spaced apart from a respective first seal 23 with respect to the product-filling area A.
  • a pair of sealing plates 6 are provided, preferably integral with a respective sealing frame 5.
  • An inflatable chamber 34 is therefore delimited between the outer films 30 at a longitudinal peripheral edge 24b of the inner pouch 20.
  • the inner pouches 20 are provided connected one to the other at the longitudinal peripheral edges 24a, 24b.
  • the outer films 30 are further associated to each other through a second seal 33', connecting the outer films 30 to a respective longitudinal edge 24a of the inner pouch.
  • Inflatable chambers 34' are therefore delimited between each outer film 30 and the longitudinal peripheral edge 24a.
  • the outer films 30 are associated to each other at the second seal 31, 33, 31', 33' through respective weakening lines L (see figure 5 ), thereby allowing an easier separation of the pouches by the user through hand pulling.
  • This is preferably obtained by providing the seals 33 as a serrated seal.
  • the longitudinal peripheral edges 24a, 24b are locally perforated such as to allow an easier separation of the pouches by the user through hand pulling.
  • the obtained second seal 33, 33' for the currently processed inner pouch 20 corresponds to the second seal 31, 31' of the following inner pouch 20.
  • the inner pouches are then moved along the feeding direction D by a pitch whose length is equal to the length of the pouch 10 to be manufactured and the process discussed above is iteratively repeated for each subsequent inner pouch 20 of said plurality of inner pouches 20.
  • the inflatable chambers 34, 34' thus formed are then filled with an inert gas, preferably Nitrogen, by using a suitable filling means, for example a filling tube 8, and subsequently sealed on the upper portion thereof through a respective upper seal 35.
  • an inert gas preferably Nitrogen
  • the material of the walls of the inner pouch 20 and of the outer films 30 can be a non gas-barrier material, the gas-barrier effect at the sealed edges being anyway provided by the chamber 34 inflated with the inert gas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Bag Frames (AREA)
  • Buffer Packaging (AREA)

Claims (16)

  1. Pochette (10 ; 10') comprenant :
    - une pochette intérieure (20) comprenant une surface inférieure (22) et des parois latérales opposées (24) s'étendant vers le haut à partir de la surface inférieure (22), lesdites parois latérales opposées (24) étant associées les unes aux autres le long d'au moins un bord périphérique (24a, 24b, 24c) de celles-ci, délimitant ainsi une zone de remplissage de produit (A) ;
    caractérisée en ce que la pochette comprend une paire de films extérieurs (30) recouvrant chacun l'une respective desdites parois latérales opposées (24) de la pochette intérieure (10), lesdits films extérieurs (30) étant associés les uns aux autres par un premier joint d'étanchéité (21, 23) sur ledit au moins un bord périphérique de la pochette intérieure (20) ;
    et en ce que les films extérieurs (30) sont en outre associés les uns aux autres par un deuxième joint d'étanchéité (31, 33 ; 31', 33') espacé du premier joint d'étanchéité (21, 23) par rapport à la zone de remplissage de produit (A), délimitant ainsi au moins une chambre gonflable (34, 34') entre ledit premier joint d'étanchéité (21, 23) et ledit deuxième joint d'étanchéité (31, 33 ; 31', 33'), ladite chambre étant remplie de gaz inerte.
  2. Pochette (10 ; 10') selon la revendication 1, dans laquelle, au niveau dudit deuxième joint d'étanchéité (31, 33), les films extérieurs (30) sont directement associés les uns aux autres, une chambre gonflable (34) étant définie entre les films extérieurs (30) ; ou dans laquelle, au niveau du deuxième joint d'étanchéité (31', 33'), les films extérieurs (30) sont scellés au niveau dudit au moins un bord périphérique (24a, 24b) de la pochette intérieure (20), une chambre gonflable (34') étant définie entre chaque film extérieur (30) et ledit au moins un bord périphérique (24a, 24b).
  3. Pochette (10 ; 10') selon la revendication 1 ou 2, dans laquelle les parois latérales opposées (24) sont associées les unes aux autres par des bords périphériques superposés sélectionnés (24a, 24b, 24c) de celles-ci, et dans laquelle les parois latérales opposées (24) de la pochette intérieure (20) sont thermo-scellées le long de deux bords périphériques (24a, 24b) longitudinaux opposés et le long d'un bord périphérique transversal supérieur (24c).
  4. Pochette (10 ; 10') selon la revendication 1 ou 2, dans laquelle les films extérieurs (30) sont associés les uns aux autres par des premiers joint d'étanchéités (21, 23) prévus sur un bord périphérique longitudinal (24a, 24b) respectif de la pochette intérieure (20).
  5. Pochette (10 ; 10') selon l'une quelconque des revendications 1 à 4, dans laquelle chacun desdits films extérieurs (30) est scellé autour d'un périmètre d'une paroi latérale respective (24) de la pochette intérieure (20).
  6. Pochette (10; 10') selon l'une quelconque des revendications précédentes, dans laquelle ledit gaz inerte remplissant ladite au moins une chambre gonflable (34 ; 34) est du nitrogène.
  7. Pochette (10; 10') selon l'une quelconque des revendications précédentes, dans laquelle la pochette intérieure (20) ou les films extérieurs (30) ou les deux sont constitués d'une matière plastique souple ; et dans laquelle la pochette intérieure (20) ou les films extérieurs (30) ou les deux sont constitués d'un matériau avec des propriétés de barrière aux gaz.
  8. Pochette (10 ; 10') selon la revendication 7, dans laquelle le matériau avec des propriétés de barrière à l'oxygène est un stratifié comprenant une ou plusieurs couches de résine à effet de barrière aux gaz, comprenant facultativement une ou plusieurs couches de matière non-plastique.
  9. Pochette (10; 10') selon l'une quelconque des revendications précédentes, dans laquelle au moins un film extérieur (30) présente une surface imprimée.
  10. Procédé pour la fabrication d'une pochette (10 ; 10') selon l'une quelconque des revendications précédentes, comprenant :
    - la mise à disposition d'une pochette intérieure (20), comprenant une surface inférieure (22) et des parois latérales opposées (24) s'étendant vers le haut à partir de la surface inférieure (22), les parois latérales opposées (24) étant associées les unes aux autres le long d'au moins un bord périphérique (24a, 24b, 24c) de celles-ci, délimitant ainsi une zone de remplissage de produit (A) ;
    - l'alimentation d'une paire de films extérieurs (30), chacun desdits films extérieurs (30) recouvrant une paroi latérale respective (24) de la pochette intérieure (20) ;
    - l'association des films extérieurs (30) les uns aux autres par un premier joint d'étanchéité (21, 23) au niveau dudit au moins un bord périphérique (24a, 24b) de la pochette intérieure (20) ;
    - l'association des films extérieurs (30) les uns aux autres par un deuxième joint d'étanchéité (31, 33 ; 31', 33') espacé dudit premier joint d'étanchéité (21, 23) par rapport à la zone de remplissage de produit (A), délimitant ainsi au moins une chambre gonflable (34 ; 34') entre ledit premier joint d'étanchéité (21, 23) et ledit deuxième joint d'étanchéité (31, 33 ; 31', 33') ;
    - le gonflage de l'au moins une chambre gonflable (34 ; 34') avec un gaz inerte ; et
    - le scellage de ladite au moins une chambre gonflable (34 ; 34').
  11. Procédé selon la revendication 10, dans lequel l'association des films extérieurs (30) les uns aux autres par un deuxième joint d'étanchéité (31, 33) comprend l'association directe des films extérieurs les uns aux autres, une chambre gonflable (34) étant définie entre les films extérieurs (30) ; ou dans lequel l'association des films extérieurs (30) les uns aux autres par un deuxième joint d'étanchéité (31', 33') comprend le scellage des films extérieurs (30) sur ledit au moins un bord périphérique (24a, 24b) de la pochette intérieure (20), une chambre gonflable (34') étant définie entre chaque film extérieur (30) et ledit au moins un bord périphérique (24a, 24b).
  12. Procédé selon l'une quelconque des revendications 10 à 11, dans lequel il est prévu une pluralité de pochettes intérieures (20), ladite pluralité de pochettes intérieures (20) étant alignée le long d'une direction d'alimentation (D) avant l'alimentation de ladite paire de films extérieurs (30).
  13. Procédé selon la revendication 12, dans lequel les films extérieurs (30) sont alimentés chacun par un cylindre d'alimentation (2) respectif le long de la direction d'alimentation (D), où la pochette intérieure (20) venant en premier le long de la direction d'alimentation (D) est agencée entre les films extérieurs (30), dans lequel chaque film extérieur (30) est de préférence conçu pour adhérer à une paroi latérale respective (24) de la pochette intérieure (20) au moyen d'un cylindre de déviation respectif (4) prévu de chaque côté des pochettes intérieures (20), et
    dans lequel, par conséquent, les films extérieurs (30) sont thermo-scellés le long du périmètre de la paroi latérale respective (24) par une paire de cadres d'étanchéité (5) comprenant chacun une plaque d'étanchéité inférieure (5a), une plaque d'étanchéité supérieure (5b) et une paire de plaques d'étanchéité latérales (5c et 5d) reliant les plaques d'étanchéité inférieure et supérieure (5a et 5b).
  14. Procédé selon la revendication 12 ou 13, dans lequel ladite pluralité de pochettes intérieures (20) sont reliées les unes aux autres au niveau des bords périphériques (24a, 24b).
  15. Procédé selon l'une quelconque des revendications 12 ou 13 ou 14, dans lequel l'association des films extérieurs les uns aux autres par un deuxième joint d'étanchéité (31, 33 ; 31', 33') comprend l'association des films extérieurs (30) par une ligne d'affaiblissement (L).
  16. Ensemble de pochettes (10 ; 10'), dans lequel chaque pochette (10 ; 10') est une pochette (10 ; 10') selon l'une quelconque des revendications 1 à 11, dans lequel les films extérieurs (30) desdites pochettes (10 ; 10') sont associés les uns aux autres par des lignes d'affaiblissement respectives (L).
EP20120156628 2012-02-23 2012-02-23 Sachet et son procédé de fabrication Not-in-force EP2631195B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES12156628.5T ES2541752T3 (es) 2012-02-23 2012-02-23 Bolsa y procedimiento de fabricación de la misma
EP20120156628 EP2631195B1 (fr) 2012-02-23 2012-02-23 Sachet et son procédé de fabrication
PCT/EP2013/052945 WO2013124201A1 (fr) 2012-02-23 2013-02-14 Poche et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120156628 EP2631195B1 (fr) 2012-02-23 2012-02-23 Sachet et son procédé de fabrication

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EP2631195A1 EP2631195A1 (fr) 2013-08-28
EP2631195B1 true EP2631195B1 (fr) 2015-04-08

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ES (1) ES2541752T3 (fr)
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WO2013124201A1 (fr) 2013-08-29
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