EP3556673B1 - Emballage scellé contenant un produit alimentaire fluide et matériau de conditionnement de feuille pour produire un emballage scellé contenant un produit alimentaire fluide - Google Patents

Emballage scellé contenant un produit alimentaire fluide et matériau de conditionnement de feuille pour produire un emballage scellé contenant un produit alimentaire fluide Download PDF

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Publication number
EP3556673B1
EP3556673B1 EP19169271.4A EP19169271A EP3556673B1 EP 3556673 B1 EP3556673 B1 EP 3556673B1 EP 19169271 A EP19169271 A EP 19169271A EP 3556673 B1 EP3556673 B1 EP 3556673B1
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EP
European Patent Office
Prior art keywords
package
transversal
edge
length
front edge
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.)
Active
Application number
EP19169271.4A
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German (de)
English (en)
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EP3556673A1 (fr
EP3556673C0 (fr
Inventor
Marcello Barbieri
Carlo FORCELLINI
Giulio FERRARI
Patricia CIVA
Alberto MAMELI
Cristina SIRIGNANO
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to EP23194824.1A priority Critical patent/EP4279408A3/fr
Publication of EP3556673A1 publication Critical patent/EP3556673A1/fr
Application granted granted Critical
Publication of EP3556673C0 publication Critical patent/EP3556673C0/fr
Publication of EP3556673B1 publication Critical patent/EP3556673B1/fr
Active 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/064—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/0209—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body the tubular body having a curved or partially curved cross-section
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/029—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body the tubular body presenting a special shape
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4266—Folding lines, score lines, crease lines

Definitions

  • the present invention relates to a sealed package containing a pourable food product.
  • the present invention also relates to a sheet packaging material for producing a sealed package containing a pourable food product.
  • pourable food products such as fruit juice, UHT (ultra-high-temperature treated) milk, wine, tomato sauce, etc.
  • UHT ultra-high-temperature treated milk
  • wine tomato sauce
  • etc. are sold in packages made of sterilized packaging material.
  • a typical example is the parallelepiped-shaped package for liquid or pourable food products known as Tetra Brik Aseptic (registered trademark), which is made by folding, sealing and cutting a web of laminated packaging material.
  • the packaging material has a multilayer structure comprising a base layer, e.g. of paper, covered on both sides with layers of heat-seal plastic material, e.g. polyethylene.
  • the packaging material also comprises a layer of oxygen-barrier material, e.g. an aluminium foil, which is superimposed on a layer of heat-seal plastic material, and is in turn covered with another layer of heat-seal plastic material forming the inner face of the package eventually contacting the food product.
  • Packages of this sort are normally produced on fully automatic packaging machines, on which a continuous tube is formed from the web-fed packaging material; the web of packaging material is sterilized on the packaging machine, e.g. by applying a chemical sterilizing agent, such as a hydrogen peroxide solution, which, once sterilization is completed, is removed from the surfaces of the packaging material, e.g. evaporated by heating; the web so sterilized is then maintained in a closed, sterile environment, and is folded and sealed longitudinally to form a tube, which is fed vertically.
  • a chemical sterilizing agent such as a hydrogen peroxide solution
  • the tube is filled with the sterilized or sterile-processed food product, and is sealed and subsequently cut along equally spaced cross sections; pillow packs are so obtained, which are then folded mechanically to form respective finished packages at a final folder.
  • crease lines i.e. weakening lines
  • the crease lines define folding lines along which the pillow packs are folded to take the desired final configuration.
  • the packaging material may be cut into blanks, which are formed into packages on forming spindles, and the resulting packages are then filled with the food product and sealed.
  • a type of package is the so-called "gable-top” package known by the trade name Tetra Rex (registered trademark).
  • the removable portion is formed on the packaging material prior to folding and sealing the packaging material to form the finished package.
  • the removable portion normally comprises a so-called “prelaminated” hole, i.e. a circular hole formed through the base layer only of the packaging material and covered, when the material is laminated, with the layers of heat-seal plastic material and barrier material, which adhere to one another at the hole.
  • prelaminated hole i.e. a circular hole formed through the base layer only of the packaging material and covered, when the material is laminated, with the layers of heat-seal plastic material and barrier material, which adhere to one another at the hole.
  • Each package of the above type is obtained from a basic unit of packaging material having given crease lines.
  • the above-mentioned basic unit represents the exact length of the packaging material used to produce one single package.
  • the original web includes a plurality of basic units joined to each other; in the case of packages made on forming spindles, the basic unit is defined by the blank cut from the web prior to starting the forming and sealing operations.
  • the basic unit typically has a rectangular or square configuration with two boundary edges parallel to a longitudinal direction and two other boundary edges parallel to a transversal direction orthogonal to the longitudinal direction.
  • the longitudinal direction becomes the direction along which the total height of the package itself is defined; the longitudinal direction also represents the main direction of extension of the web from which the basic unit is obtained.
  • the basic unit usually includes at least two transversal crease lines extending transversally to the longitudinal direction and dividing the basic unit itself into:
  • the transversal crease lines are also configured to define a bottom peripheral outline and a top peripheral outline of the finished package having endless configurations and respectively dividing the bottom portion and the top portion from the main portion.
  • the bottom portion of the finished package normally includes a flat and horizontal bottom panel defining the resting surface of the package itself.
  • the top portion of the finished package may include a flat and horizontal top panel, parallel to the bottom panel; alternatively, slanted top panels are very conveniently used in combination with opening devices because they are wider than corresponding flat top panels of parallelepiped or prismatic packages and therefore allow the application of larger opening devices, e.g. provided with screw caps or the like.
  • EP2650222 addresses the problem of providing a packaging container with a novel triangular cross section and a production method for said container.
  • the packaging container obtained by: tube-form molding by vertical sealing of a web-shaped packaging material; filling inside the tube-shaped packaging material; horizontal sealing in the transverse direction of the tube-shaped packaging material; forming of a pillow-shaped container body; cutting off of individual pillow-shaped container bodies; and forming into a final shape by folding along creases to form a top wall, a side wall, and a bottom wall and attaching formed fins and flaps to said walls.
  • the top wall and bottom wall have a triangular and a rectangular shape, respectively; the cross-section in the transverse direction of a packaging container main body, formed by four ridgelines that connect the triangulation points of the top wall and the four corner points of the bottom wall, is trapezoidal, and one corner point of the horizontal top wall protrudes towards the front side wall.
  • WO2017/001162 discloses a spout element for packaging, in particular composite packaging for liquid foodstuffs, said packaging having a polyhedral gable-shaped region and folded packaging casing flaps and the spout element having a main body, a polyhedral flange which is provided for connecting to a packaging casing and the connecting surfaces of which converge at surface meeting points; composite packaging for liquid foodstuffs, having a polyhedral gable-shaped region and folded packaging casing flaps, in which packaging the packaging casing is connected to the spout in a corresponding manner; and composite packaging for liquid foodstuffs having such a spout element.
  • Document EP2392517 describes a sealed package for pourable food products, comprising a quadrangular bottom panel which comprises a first front edge and a second rear edge opposite to each other; a quadrangular top panel which is opposite to bottom panel and comprises a third front edge and a fourth rear edge; a front panel which extends between first and third edges; and a rear panel which extends between second and fourth edges; the distance between first and third edges is smaller than the distance between second and fourth edges; top panel is angled with respect to a first plane defined by first and second edges; first and third edge define a second theoretical reference plane; front panel comprises a fifth and sixth edge which are opposite to one another and extend both between first and second edges; at least one of fifth and sixth front edge extends at least partially on the opposite side of a second theoretical plane with respect to rear panel; front panel comprises at least a first region which extends on the opposite side of a second theoretical plane with respect to rear panel.
  • Number 1 in Figures 1 to 5 indicates as a whole a sealed package according to the present invention, which contains a pourable food product and is obtained from a sheet packaging material 2 as shown in Figure 6 .
  • Package 1 comprises a bottom portion 3, a top portion 4 and a main portion 5 interposed between bottom portion 3 and top portion 4 and including a plurality of side wall portions 6, each one delimited by two opposite lateral edge zones 7.
  • Main portion 5 is divided from bottom portion 3 by a bottom peripheral outline 8 having an endless configuration defined by a broken line.
  • main portion 5 is divided from top portion 4 by a top peripheral outline 9, also having an endless configuration defined by a broken line.
  • Bottom portion 3 includes a flat and horizontal bottom panel 10 having a quadrilateral, i.e. rectangular or square (in the example shown rectangular), profile and defining the resting surface of the package itself.
  • Bottom panel 10 is delimited by bottom peripheral outline 8 in turn formed by four segments or contour edges, i.e. a bottom front edge 8a, a bottom rear edge 8b parallel to bottom front edge 8a and two bottom side edges 8c, orthogonal to bottom front edge 8a and bottom rear edge 8b.
  • bottom front edge 8a and bottom rear edge 8b have the same length; the same applies to bottom side edges 8c, which also have the same length.
  • Package 1 extends vertically along a longitudinal direction A, which is orthogonal to bottom panel 10 and along which the total height of the package 1 itself is defined. Longitudinal direction A is also orthogonal to bottom front edge 8a, bottom rear edge 8b and bottom side edges 8c of bottom peripheral outline 8.
  • total height means either the height of the package when the latter has a constant height or the maximum height of the package when the latter has a variable height.
  • Bottom portion 3 further includes two bottom lateral flaps 11 having substantially triangular configurations and folded in a known manner onto bottom panel 10 ( Figure 4 ).
  • Top portion 4 includes a flat and slanted top panel 14 having a quadrilateral, i.e. a square or a rectangular, profile and having a sloping configuration forwards with respect to longitudinal direction A.
  • top panel 14 is a rectangle approximating a square.
  • Top panel 14 is delimited by top peripheral outline 9 in turn formed by four segments or contour edges, i.e. a top front edge 9a parallel to bottom front edge 8a and bottom rear edge 8b, a top rear edge 9b, parallel to top front edge 9a and arranged higher than the top front edge 9a itself, and two top side edges 9c, orthogonal to top front edge 9a and top rear edge 9b and inclined with respect to longitudinal direction A.
  • top peripheral outline 9 in turn formed by four segments or contour edges, i.e. a top front edge 9a parallel to bottom front edge 8a and bottom rear edge 8b, a top rear edge 9b, parallel to top front edge 9a and arranged higher than the top front edge 9a itself, and two top side edges 9c, orthogonal to top front edge 9a and top rear edge 9b and inclined with respect to longitudinal direction A.
  • top peripheral outline 9 extends transversally with respect to longitudinal direction A.
  • top front edge 9a and top rear edge 9b have the same length; the same applies to top side edges 9c, which also have the same length.
  • Top portion 4 further includes two top lateral flaps 15 having substantially triangular configurations and folded in a known manner onto two opposite side wall portions 6 of main portion 5.
  • top portion 4 is also provided with an opening device 16 of plastic material placed over and around a removable portion 17 ( Figure 6 ) of the packaging material 2. Opening device 16 is applied onto top panel 14 by conventional fastening systems, such as adhesives, or by micro-flame, electric-current-induction, ultrasound, laser, injection moulding or other heat-sealing techniques.
  • main portion 5 of package 1 includes four side wall portions 6 with different profiles and sizes; advantageously, lateral edge zones 7 delimiting side wall portions 6 have rounded configurations.
  • a first side wall portion 6, designed to define a front face of package 1 has a substantially rectangular configuration delimited, at bottom and top, by straight bottom front edge 8a and top front edge 9a, and at opposite sides, by respective rounded and convex lateral edge zones 7.
  • Each of the other two side wall portions 6 has a profile substantially resembling a rectangular trapezium delimited:
  • the two side wall portions 6 having the trapezoidal profiles receive the respective top lateral flaps 15 on their outer surfaces.
  • the area of bottom panel 10 is different from the area of a top quadrilateral Q ( Figure 5 ) obtained by projecting, along longitudinal direction A, top panel 14 on a reference plane P ( Figure 3 ) parallel to the bottom panel 10, crossing package 1 and containing top front edge 9a of top peripheral outline 9.
  • bottom panel 10 is smaller than the area of top quadrilateral Q.
  • the area of bottom panel 10 may be bigger than the area of top quadrilateral Q.
  • top quadrilateral Q is a square or a rectangle, in the examples shown a rectangle approximating a square.
  • top quadrilateral Q includes a top front segment Q1, corresponding to bottom front edge 8a, a top rear segment Q2, corresponding to bottom rear edge 8b, and two top side segments Q3, respectively corresponding to bottom side edges 8c.
  • top side segments Q3 have the same length, which is in turn different from the length of bottom side edges 9c. More specifically, in the example shown, the length of bottom side edges 9c is smaller than the length of top side segments Q3.
  • top front segment Q1 and top rear segment Q2 have the same length, which is in turn different from the length of bottom front edge 8a and bottom rear edge 8b.
  • the length of bottom front edge 8a and bottom rear edge 8b is greater than the length of top front segment Q1 and top rear segment Q2.
  • the packaging material 2 from which package 1 is made is shown in Figure 6 and has a known multilayer structure (not shown) comprising a base layer, e.g. of paper, for stiffness, and a number of lamination layers covering both sides of the base layer.
  • a base layer e.g. of paper
  • lamination layers covering both sides of the base layer.
  • the lamination layers comprise one layer of oxygen-barrier material, e.g. an aluminum foil, and a number of layers of heat-seal plastic material covering both sides of the base layer and both sides of the layer of oxygen-barrier material.
  • packaging material 2 comprises one layer of heat-seal plastic material, one layer of oxygen-barrier material, another layer of heat-seal plastic material, the base layer, and one or more additional layers of heat-seal plastic material.
  • the letter M in Figure 6 indicates a basic unit of packaging material 2, by which to produce package 1, and which may be a precut blank, or a portion of a web of packaging material comprising a succession of basic units M.
  • basic unit M is folded on a known forming spindle (not shown), is filled with the food product, and is sealed at the top to form the final package.
  • the web of packaging material 2 comprising a succession of basic units M, is :
  • package 1 After completion of these operations, package 1 has:
  • bottom panel 10 is crossed by bottom transverse sealing band 18 and by an end portion 20a of longitudinal sealing band 20 extending perpendicularly from the bottom transverse sealing band 18.
  • top panel 14 is crossed by top transverse sealing band 19 and by an end portion 20b of longitudinal sealing band 20 extending perpendicularly from the top transverse sealing band 19 and opposite to end portion 20a; in greater detail, top transverse sealing band 19 divides top panel 14 into two zones 14a, 14b and end portion 20b of longitudinal sealing band 20 extends on one (14b) of such zones 14a, 14b from an intermediate portion of the top transverse sealing band 19.
  • top transverse sealing band 19 is folded on zone 14b and end portion 20b of longitudinal sealing band 20; in this way, zone 14a has a bigger area than zone 14b and is therefore more suitable for receiving removable portion 17 and opening device 16.
  • removable portion 17 has a circular profile and is designed to be at least partly detached in use from the rest of the packaging material by opening device 16 to free a pour opening through which to pour out the product.
  • Removable portion 17 is formed on packaging material 2 prior to folding and sealing the packaging material 2 itself to form the finished package.
  • removable portion 17 comprises a so-called “prelaminated” hole, i.e. a circular hole formed through the base layer only of packaging material 2 and covered, when the packaging material 2 itself is laminated, with the layers of heat-seal plastic material and oxygen-barrier material, which adhere to one another at the hole.
  • prelaminated hole i.e. a circular hole formed through the base layer only of packaging material 2 and covered, when the packaging material 2 itself is laminated, with the layers of heat-seal plastic material and oxygen-barrier material, which adhere to one another at the hole.
  • basic unit M of packaging material 2 has a rectangular configuration and is delimited by:
  • Basic unit M of packaging material 2 comprises a number of crease lines defining respective fold lines, along which the packaging material 2 itself is folded to form the finished package 1.
  • basic unit M comprises two transversal crease lines 25, 26 extending transversally with respect to longitudinal direction A and dividing the basic unit M itself into:
  • Transversal crease line 25 extends parallel to bottom boundary edge 23 and top boundary edge 24 and is arranged closer to bottom boundary edge 23 than transversal crease line 26. Transversal crease line 25 is configured to define bottom peripheral outline 8 of package 1.
  • transversal crease line 25 includes:
  • Transversal crease line 26 is arranged closer to top boundary edge 24 than transversal crease line 25 and is configured to define top peripheral outline 9 of package 1.
  • transversal crease line 26 has a broken-line shape with:
  • top side portions 26c converge towards top central portion 26a.
  • Basic unit M includes two further transversal crease lines 32, 33 extending parallel to direction B and placed near bottom boundary edge 23 and top boundary edge 24, respectively; transversal crease lines 32, 33 delimit with bottom boundary edge 23 and top boundary edge 24 respective bottom transversal sealing area 34 and top transversal sealing area 35 configured to define bottom transversal sealing band 18 and top transversal sealing band 19 of package 1.
  • Bottom crease pattern 28 is designed to produce bottom panel 10 and bottom lateral flaps 11 of package 1.
  • bottom crease pattern 28 includes, in a known manner, four longitudinal crease lines 36a, 36b parallel to longitudinal direction A and extending between transversal crease lines 25 and 32.
  • Longitudinal crease lines 36b are the most internal ones, whilst longitudinal crease lines 36a are located near opposite side boundary edges 22; the area between longitudinal crease lines 36b as well as the areas delimited by longitudinal crease lines 36a with the respective side boundary edges 22 are configured to define bottom panel 10 of package 1.
  • bottom crease pattern 28 further includes two additional crease lines 37, 38 inclined with respect to both longitudinal direction A and transversal direction B.
  • each pair of additional crease lines 37, 38 of each pair have one end in common located on transversal crease line 32 and opposite ends located at the intersection points between transversal crease line 25 and longitudinal crease lines 36a and 36b, respectively.
  • each pair of additional crease lines 37, 38 delimits a triangle 39 with the segment of transversal crease line 25 comprised between the additional crease lines 37, 38 themselves.
  • Each area between longitudinal crease lines 36a and 36b is configured to define one respective bottom lateral flap 11 of package 1.
  • Top crease pattern 30 is designed to produce top panel 14 and top lateral flaps 15 of package 1.
  • top crease pattern 30 includes four longitudinal crease lines 40a, 40b parallel to longitudinal direction A and extending between transversal crease lines 26 and 33.
  • Longitudinal crease lines 40b are the most internal ones, whilst longitudinal crease lines 40a are located near opposite side boundary edges 22; the area between longitudinal crease lines 40b as well as the areas delimited by longitudinal crease lines 40a with the respective side boundary edges 22 are configured to define top panel 14 of package 1.
  • Removable portion 17 is formed in the area of top region 29 comprised between longitudinal crease lines 40b.
  • top crease pattern 30 further includes two additional crease lines 41, 42 inclined with respect to both longitudinal direction A and transversal direction B.
  • the additional crease lines 41, 42 of each pair have one end in common located on transversal crease line 33 and opposite ends located at, or adjacent to, the opposite ends of the respective inclined top side portion 26c of transversal crease line 26.
  • each pair of additional crease lines 41, 42 delimits a triangle 43 with the respective top side portion 26c of transversal creased line 26.
  • Each area between longitudinal crease lines 40a and 40b is configured to define one respective top lateral flap 15 of package 1.
  • the length of top central portion 26a of transversal crease line 26 is different from the length of bottom central portion 25a of transversal crease line 25; in addition, the length of each of bottom side portions 25c of transversal crease line 25 is also different from the length of the projection R, parallel to longitudinal direction A, of each of top side portions 26c of transversal crease line 26 on a reference line S parallel to transversal crease line 25 and containing top central portion 26a.
  • top central portion 26a is smaller than the length of bottom central portion 25a; in a different manner, the length of each projection R is greater than the length of the corresponding bottom side portion 25c.
  • the length of bottom central portion 25a corresponds to the length of the segment of transversal crease line 32 comprised between longitudinal crease lines 36b; in a completely analogous manner, the length of top central portion 26a corresponds to the length of the segment of transversal crease line 33 comprised between longitudinal crease lines 40b.
  • bottom side portions 25c whose lengths correspond to the lengths of the respective segments of transversal crease line 32 comprised between each pair of longitudinal crease lines 36a and 36b.
  • the lengths of projections R correspond to the lengths of the respective segments of transversal crease line 33 comprised between each pair of longitudinal crease lines 40a and 40b.
  • top front segment Q1 and top rear segment Q2 of top quadrilateral Q corresponds to the length of top central portion 26a; in an analogous manner, the length of top side segments Q3 of top quadrilateral Q corresponds to the length of projections R.
  • intermediate region 31 includes a central transversal band 44 having a uniform structure, i.e. lacking any creasing or weakening, and crossing the areas of the intermediate region 31 itself designed to form the respective lateral edge zones 7 of side wall portions 6 of package 1.
  • intermediate region 31 of basic unit M further comprises a plurality of V-shaped crease lines 45 having respective vertices 46 located on or adjacent to the transversal crease lines 25, 26 and at given points thereof designed to define the opposite ends of respective lateral edge zones 7 delimiting the side wall portions 6 of package 1; each V-shaped crease line 45 extends from and in proximity of the respective transversal crease line 25, 26 up to central transversal band 44 and comprises two legs 47 diverging from the respective vertex 46.
  • each V-shaped crease line 45 extends from the respective transversal crease line 25, 26 towards the other transversal crease line 26, 25 and has a size, parallel to longitudinal direction A, greater than zero and smaller than one fourth, preferably smaller than one tenth, of the total height of intermediate region 31 measured parallel to the longitudinal direction A itself.
  • total height of intermediate region 31 corresponds to the total height of the package.
  • each V-shaped crease line 45 extending from transversal crease line 25 and the corresponding V-shaped crease line 45 extending from transversal crease line 26 are spaced apart parallel to longitudinal direction A.
  • each V-shaped crease line 45 has a size, parallel to longitudinal direction A, smaller than the maximum height of bottom region 27 or top region 29 measured parallel to the longitudinal direction A itself.
  • each leg of the V-shaped crease lines 45 has a length smaller than the maximum length of the heights of triangles 39, 43 with reference to their bases on respective transversal crease lines 25, 26.
  • each V-shaped crease line 45 has a size, parallel to longitudinal direction A, substantially equal to one fourteenth of the total height of intermediate region 31 measured parallel to the longitudinal direction A itself.
  • V-shaped crease lines 45 are the only crease lines present in intermediate region 31 at the areas designed to define lateral edge zones 7 between side wall portions 6 of package 1.
  • V-shaped crease lines 45 perform the function of easing folding of the packaging material 2 at the corners between lateral edge zones 7 of side wall portions 6 and bottom peripheral outline 8 and top peripheral outline 9 without affecting the round configuration of lateral edge zones 7.
  • legs 47 of each V-shaped crease line 45 are rectilinear or straight; as a possible alternative not shown, legs 47 of each V-shaped crease line 45 may also be curved, preferably with their concavities facing one another.
  • legs 47 of each V-shaped crease line 45 delimit an angle comprised between 45° and 90°.
  • Number 1' in Figure 7 indicates as a whole a different embodiment of a sealed package according to the present invention and obtained by a basic unit M' ( Figure 8 ) of sheet packaging material 2.
  • Package 1' being similar to package 1, the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts; the same applies for basic units M' and M.
  • package 1' differs from package 1 only in that lateral edge zones 7 between side wall portions 6 are defined by respective longitudinal crease lines 50 extending between transversal crease lines 25 and 26.
  • Longitudinal crease lines 50 are slightly slanted with respect to longitudinal direction A due to the different lengths between bottom central portion 25a and top central portions 26a of transversal crease lines 25, 26 as well as between bottom side portions 25c of transversal crease line 25 and respective projections R on reference line S.
  • Number 1 in Figure 9 indicates as a whole a different embodiment of a sealed package according to the present invention and obtained by a basic unit M" ( Figure 10 ) of sheet packaging material 2.
  • Package 1 being similar to package 1, the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts; the same applies for basic units M'' and M.
  • package 1" differs from package 1 only by having a top panel 14" that extends horizontally and parallel to bottom panel 10.
  • top panel 14'' is delimited by a top peripheral outline 9" (formed by edges 9a", 9b", 9c") parallel to bottom peripheral outline 8 and deriving by a transversal crease line 26" also parallel to transversal crease line 25 and to transversal direction B.
  • top panel 14" extends entirely on reference plane P and therefore the projection of top panel 14'' on this latter plane, i.e. top quadrilateral Q, coincides with the top panel 14'' itself.
  • Number 1′′′ in Figure 11 indicates as a whole a different embodiment of a sealed package according to the present invention and obtained by a basic unit M′′′ ( Figure 12 ) of sheet packaging material 2.
  • Package 1''' being similar to package 1", the following description is limited to the differences between them, and using the same references, where possible, for identical or corresponding parts; the same applies for basic units M''' and M'' .
  • package 1′′′ differs from package 1'' only in that lateral edge zones 7 between side wall portions 6 are defined by respective longitudinal crease lines 50 extending between transversal crease lines 25 and 26.
  • longitudinal crease lines 50 are slightly slanted with respect to longitudinal direction A due to the different lengths between bottom central portion 25a and top central portion 26a'' of transversal crease lines 25, 26" as well as between bottom side portions 25c and top side portion 26c" of the same transversal crease lines 25, 26".

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Claims (20)

  1. Emballage scellé (1, 1', 1", 1‴) contenant un produit alimentaire fluide et comprenant une partie inférieure (3), une partie supérieure (4) et une partie principale (5) interposée entre ladite partie inférieure (3) et ladite partie supérieure (4) et comprenant une pluralité de parties paroi latérale (6) ;
    ladite partie principale (5) étant séparée de ladite partie inférieure (3) et de ladite partie supérieure (4) respectivement par un contour périphérique inférieur (8) et un contour périphérique supérieur (9, 9"), chacun ayant une configuration sans fin et s'étendant transversalement par rapport à une direction longitudinale (A), le long de laquelle la hauteur totale de l'emballage (1, 1', 1", 1‴) est définie ;
    chacun dudit contour périphérique inférieur (8) et dudit contour périphérique supérieur (9, 9'') ayant une forme de ligne brisée et étant formé par une pluralité de bords de contour (8a, 8b, 8c ; 9a, 9b, 9c ; 9a'', 9b'', 9c") reliés entre eux ;
    ladite partie inférieure (3) comprenant un panneau inférieur quadrilatéral (10) délimité par ledit contour périphérique inférieur (8), lui-même formé par un bord avant inférieur (8a), un bord arrière inférieur (8b) parallèle audit bord avant inférieur (8a) et deux bords latéraux inférieurs (8c) dudit emballage (1, 1', 1", 1‴) orthogonaux audit bord avant inférieur (8a) et audit bord arrière inférieur (8b), ledit panneau inférieur quadrilatéral (10) s'étendant orthogonalement à ladite direction longitudinale (A) ; et
    ladite partie supérieure (4) comprenant un panneau supérieur quadrilatéral (14, 14'') délimité par ledit contour périphérique supérieur (9, 9''), lui-même formé par un bord avant supérieur (9a, 9a'') parallèle audit bord avant inférieur (8a) et audit bord arrière inférieur (8b), un bord arrière supérieur (9b, 9b'') parallèle audit bord avant supérieur (9a, 9a'') et deux bords latéraux supérieurs (9c, 9c'') dudit emballage (1, 1', 1", 1''') orthogonaux audit bord avant supérieur (9a, 9a'') et audit bord arrière supérieur (9b, 9b"), ledit panneau supérieur quadrilatéral (14, 14'') s'étendant transversalement à ladite direction longitudinale (A) ;
    caractérisé en ce que la surface du panneau inférieur (10) est différente de la surface d'un quadrilatère supérieur (Q) obtenu en projetant, le long de ladite direction longitudinale (A), ledit panneau supérieur (14, 14") sur un plan de référence (P) parallèle audit panneau inférieur (10), traversant l'emballage (1, 1', 1", 1‴) et contenant au moins un (9a, 9a'') des bords de contour (9a, 9b, 9c ; 9a'', 9b'', 9c'') dudit contour périphérique supérieur (9, 9").
  2. Emballage selon la revendication 1, ledit plan de référence (P) contenant au moins ledit bord avant supérieur (9a, 9a'') des bords de contour (9a, 9b, 9c ; 9a'', 9b'', 9c'') dudit contour périphérique supérieur (9, 9").
  3. Emballage selon la revendication 1 ou 2, la surface dudit panneau inférieur (10) étant inférieure à la surface dudit quadrilatère supérieur (Q).
  4. Emballage selon l'une quelconque des revendications précédentes, ledit quadrilatère supérieur (Q) comprenant un segment avant supérieur (Q1), correspondant audit bord avant inférieur (8a), un segment arrière supérieur (Q2), correspondant audit bord arrière inférieur (8b), et deux segments latéraux supérieurs (Q3), correspondant respectivement auxdits bords latéraux inférieurs (8c).
  5. Emballage selon la revendication 4, lesdits bords latéraux inférieurs (8c) ayant la même longueur et lesdits segments latéraux supérieurs (Q3) ayant la même longueur ; et la longueur desdits bords latéraux inférieurs (8c) étant différente de la longueur desdits segments latéraux supérieurs (Q3).
  6. Emballage selon la revendication 5, ladite longueur desdits bords latéraux inférieurs (8c) étant inférieure à ladite longueur desdits segments latéraux supérieurs (Q3) .
  7. Emballage selon l'une quelconque des revendications 4 à 6, ledit bord avant inférieur (8a) et ledit bord arrière inférieur (8b) ayant la même longueur et ledit segment avant supérieur (Q1) et ledit segment arrière supérieur (Q1, Q2) ayant la même longueur ; et la longueur dudit bord avant inférieur (8a) et dudit bord arrière inférieur (8b) étant différente de la longueur dudit segment avant supérieur (Q1) et dudit segment arrière supérieur (Q2).
  8. Emballage selon la revendication 7, ladite longueur dudit bord avant inférieur (8a) et dudit bord arrière inférieur (8b) étant supérieure à ladite longueur dudit segment avant supérieur (Q1) et dudit segment arrière supérieur (Q2).
  9. Emballage selon l'une quelconque des revendications précédentes, ledit panneau supérieur (14) étant incliné par rapport audit panneau inférieur (10), audit plan de référence (P) et à ladite direction longitudinale (A).
  10. Emballage selon l'une quelconque des revendications 1 à 8, ledit panneau supérieur (14'') étant parallèle audit panneau inférieur (10) et ledit quadrilatère supérieur (Q) coïncidant avec ledit panneau supérieur (14").
  11. Emballage selon l'une quelconque des revendications précédentes, chacune desdites parties paroi latérale (6) étant délimitée par deux zones de bord latérales arrondies (7) convexes vers l'extérieur.
  12. Emballage selon l'une quelconque des revendications 1 à 10, chacune desdites parties paroi latérale (6) étant délimitée par deux zones de bord latérales droites (7).
  13. Matériau d'emballage en feuille (M, M', M", M‴) pour la production d'un emballage scellé (1, 1', 1", 1‴) contenant un produit alimentaire fluide, ledit matériau d'emballage (M, M', M", M‴) ayant une configuration rectangulaire ou carrée avec deux bords de délimitation (22) parallèles à une direction longitudinale (A) et un bord de délimitation inférieur (23) et un bord de délimitation supérieur (24) parallèles à une direction transversale (B) orthogonale à ladite direction longitudinale (A) ; ledit matériau d'emballage (M, M', M", M‴) comprenant au moins une ligne de pliage transversale inférieure (25) et une ligne de pliage transversale supérieure (26, 26") s'étendant transversalement à ladite direction longitudinale (A) et divisant le matériau d'emballage (M, M', M", M''') en :
    une région inférieure (27) contenant un motif de pliage inférieur (28) et conçue pour former une partie inférieure (3) dudit emballage (1, 1', 1", 1‴) ;
    une région supérieure (29) contenant un motif de pliage supérieur (30) et conçue pour former une partie supérieure (4) dudit emballage (1, 1', 1", 1‴) ; et
    une région intermédiaire (31) contenue entre ladite ligne de pliage transversale inférieure (25) et ladite ligne de pliage transversale supérieure (26, 26"), interposée entre ladite région inférieure (27) et ladite région supérieure (29) et conçue pour former une partie principale (5) dudit emballage (1, 1', 1'', 1''') ayant une pluralité de parties paroi latérale (6) ;
    ladite ligne de pliage transversale inférieure (25) et ladite ligne de pliage transversale supérieure (26, 26") étant conçues pour définir un contour périphérique inférieur (8) et un contour périphérique supérieur (9, 9") dudit emballage (1, 1', 1", 1‴) divisant respectivement ladite partie inférieure (3) et ladite partie supérieure (4) de ladite partie principale (5) ;
    ladite ligne de pliage transversale inférieure (25) s'étendant parallèlement à ladite direction transversale (B) et comprenant une partie centrale inférieure (25a), conçue pour définir un bord avant inférieur (8a) dudit emballage (1, 1', 1", l‴), deux parties d'extrémité inférieures (25b) disposées sur les côtés opposés de ladite partie centrale inférieure (25a), situées à côté de bords de délimitation latéraux (22) respectifs et conçues pour définir un bord arrière inférieur (8b) dudit emballage (1, 1', 1", 1‴), deux parties latérales inférieures (25c), s'étendant sur des côtés opposés de ladite partie centrale inférieure (25a) jusqu'aux parties d'extrémité (25b) respectives et conçues pour définir des bords latéraux inférieurs (8c) respectifs dudit emballage (1, 1', 1", 1‴) ;
    ladite ligne de pliage transversale supérieure (26, 26'') comprenant une partie centrale supérieure (26a, 26a''), conçue pour définir un bord avant supérieur (9a, 9a") dudit emballage (1, 1', 1'', 1'''), deux parties d'extrémité supérieures (26b, 26b") parallèles à ladite direction transversale (B) et conçues pour définir un bord arrière supérieur (9b, 9b") dudit emballage (1, 1', 1", 1‴), deux parties latérales supérieures (26c, 26c''), s'étendant sur d2 es côtés opposés de ladite partie centrale supérieure (26a, 26a") et conçues pour définir des bords latéraux supérieurs (9c, 9b") respectifs dudit emballage (1, 1', 1", 1'''), chaque partie latérale supérieure (26c, 26c'') reliant ladite partie centrale supérieure (26a, 26'') à une partie d'extrémité supérieure (26b, 26b") respective ;
    ledit motif de pliage inférieur (28) étant conçu pour définir un panneau inférieur quadrilatéral (10) dudit emballage (1, 1', 1", 1‴) délimité par ledit bord avant inférieur (8a), ledit bord arrière inférieur (8b) et lesdits deux bords latéraux inférieurs (8c) ;
    ledit bord arrière inférieur (8b) étant parallèle audit bord avant inférieur (8a) et lesdits deux bords latéraux inférieurs (8c) étant orthogonaux audit bord avant inférieur (8a) et audit bord arrière inférieur (8b) ;
    ledit motif de pliage supérieur (30) étant conçu pour définir un panneau supérieur quadrilatéral (14, 14'') dudit emballage (1, 1', 1", 1‴) délimité par ledit bord avant supérieur (9a, 9a"), ledit bord arrière supérieur (9b, 9b") et lesdits deux bords latéraux supérieurs (9c, 9c'') ;
    ledit bord avant supérieur (9a, 9a") étant parallèle audit bord avant inférieur (8a) et audit bord arrière inférieur (8b), ledit bord arrière supérieur (9b, 9b' ') étant parallèle audit bord avant supérieur (9a, 9a' ') et lesdits deux bords latéraux supérieurs (9c, 9c'') étant orthogonaux audit bord avant supérieur (9a, 9a") et audit bord arrière supérieur (9b, 9b") ;
    caractérisé en ce que la longueur de ladite partie centrale supérieure (26a, 26a") de ladite ligne de pliage transversale supérieure (26, 26'') est différente de la longueur de ladite partie centrale inférieure (25a) de ladite ligne de pliage transversale inférieure (25).
  14. Matériau d'emballage selon la revendication 13, la longueur de chacune desdites parties latérales inférieures (25c) de ladite ligne de pliage transversale inférieure (25) étant différente de la longueur de la saillie (R), parallèle à ladite direction longitudinale (A), de chacune desdites parties latérales supérieures (26c, 26c'') de ladite ligne de pliage transversale supérieure (26, 26'') sur une ligne de référence (S) parallèle à ladite ligne de pliage transversale inférieure (25) et contenant au moins ladite partie centrale supérieure (26a, 26a'').
  15. Matériau d'emballage selon la revendication 14, ladite longueur de chacune desdites parties latérales inférieures (25c) étant inférieure à ladite longueur de ladite saillie (R) correspondante.
  16. Matériau d'emballage selon l'une quelconque des revendications 13 à 15, ladite longueur de ladite partie centrale inférieure (25a) de ladite ligne de pliage transversale inférieure (25) étant supérieure à ladite longueur de ladite partie centrale supérieure (26a, 26a'') de ladite ligne de pliage transversale supérieure (26, 26").
  17. Matériau d'emballage selon l'une quelconque des revendications 13 à 16, lesdites parties latérales supérieures (26c) de ladite ligne de pliage transversale supérieure (26) étant inclinées par rapport à ladite direction longitudinale (A) et à ladite direction transversale (B) et convergeant vers ladite partie centrale supérieure (26a).
  18. Matériau d'emballage selon l'une quelconque des revendications 13 à 16, ladite ligne de pliage transversale supérieure (26") étant parallèle à ladite ligne de pliage transversale inférieure (25) et coïncidant avec ladite ligne de référence (S), et lesdites saillies (R) desdites parties latérales supérieures (26c") sur ladite ligne de référence (S) coïncidant avec lesdites parties latérales supérieures (26c").
  19. Matériau d'emballage selon l'une quelconque des revendications 13 à 18, et comprenant en outre une pluralité de lignes de pliage longitudinales (50) s'étendant entre ladite ligne de pliage transversale inférieure (25) et ladite ligne de pliage transversale supérieure (26, 26'') et conçues pour définir des zones de bord latérales (7) respectives des parties paroi latérale (6) dudit emballage (1', 1‴).
  20. Matériau d'emballage selon la revendication 19, lesdites lignes de pliage longitudinales (50) étant légèrement inclinées par rapport à ladite direction longitudinale (A).
EP19169271.4A 2018-04-20 2019-04-15 Emballage scellé contenant un produit alimentaire fluide et matériau de conditionnement de feuille pour produire un emballage scellé contenant un produit alimentaire fluide Active EP3556673B1 (fr)

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EP23194824.1A Division-Into EP4279408A3 (fr) 2018-04-20 2019-04-15 Emballage scellé contenant un produit alimentaire versable et matériau d'emballage en feuille pour produire un emballage scellé contenant un produit alimentaire versable

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EP19169271.4A Active EP3556673B1 (fr) 2018-04-20 2019-04-15 Emballage scellé contenant un produit alimentaire fluide et matériau de conditionnement de feuille pour produire un emballage scellé contenant un produit alimentaire fluide

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WO2024027991A1 (fr) * 2022-08-02 2024-02-08 Tetra Laval Holdings & Finance S.A. Ébauche d'emballage pour la formation d'un emballage et emballage formé à partir d'une ébauche d'emballage

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EP3556673A1 (fr) 2019-10-23
ES2963263T3 (es) 2024-03-26
JP7436384B2 (ja) 2024-02-21
EP3556673C0 (fr) 2023-10-11
US20210237925A1 (en) 2021-08-05
WO2019201860A1 (fr) 2019-10-24
BR112020018388A2 (pt) 2020-12-22
CN110386317A (zh) 2019-10-29
JP2021522114A (ja) 2021-08-30
MX2020010758A (es) 2020-11-09
JP2024045472A (ja) 2024-04-02
CN210761729U (zh) 2020-06-16
EP4279408A3 (fr) 2024-03-20
EP4279408A2 (fr) 2023-11-22

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