EP4269268A1 - Flan d'emballage et emballage - Google Patents

Flan d'emballage et emballage Download PDF

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Publication number
EP4269268A1
EP4269268A1 EP23168887.0A EP23168887A EP4269268A1 EP 4269268 A1 EP4269268 A1 EP 4269268A1 EP 23168887 A EP23168887 A EP 23168887A EP 4269268 A1 EP4269268 A1 EP 4269268A1
Authority
EP
European Patent Office
Prior art keywords
hole
packaging blank
connecting portion
longitudinal edge
longitudinal
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.)
Pending
Application number
EP23168887.0A
Other languages
German (de)
English (en)
Inventor
Pietro Martini
Giulio Bertani
Daniele Golfieri
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
Publication of EP4269268A1 publication Critical patent/EP4269268A1/fr
Pending legal-status Critical Current

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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
    • B65D5/42—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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/563—Laminated linings; Coatings
    • 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
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening

Definitions

  • the present invention relates to a packaging blank for forming a package, in particular for forming a package having a main body and a lid-spout assembly.
  • the present invention also relates to a package for a pourable product, in particular a pourable food product.
  • liquid or 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 sealing and folding a laminated packaging material.
  • the packaging material has a multilayer structure comprising a fibrous base layer, e.g. of paper or cardboard, 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 (an oxygen-barrier layer), e.g. an aluminum 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 apparatuses, which advance and sterilize a web of packaging material, which is then formed into a tube and filled with the pourable product before its formation into individual sealed packages.
  • lid-spout assemblies which allow to be manipulated for accessing the pourable product.
  • the automatic packaging apparatuses also comprise a molding apparatus for molding the lid-spout assemblies onto the web of packaging material.
  • a typical molding apparatus comprises a plurality of molding tools, each molding tool is couplable to one respective repeat unit of the web of packaging material at a time and is configured to mold the lid-spout assembly about a respective through-hole of the respective repeat unit, the respective through-hole defining a pouring opening of the finalized package.
  • packages are formed from the web of packaging material carrying the lid-spout assemblies molded onto the respective repeat units.
  • Number 1 indicates as a whole a packaging machine for producing (sealed) packages 2 of a pourable product, in particular a pourable food product such as pasteurized milk, fruit juice, wine, tomato sauce, etc., each packaging 2 having at least a main body 3 and one respective lid-spout assembly 4 fixed onto main body 3.
  • a pourable product such as pasteurized milk, fruit juice, wine, tomato sauce, etc.
  • packaging machine 1 produces packages 2, in particular the respective main bodies 3, from respective packaging blanks 5.
  • packaging blanks 5 are successively arranged one after the other in the form of a web of packaging material 6.
  • each packaging blank 5 may define a respective repeat unit of web of packaging material 6.
  • web of packaging material 6 may comprise a plurality of repeat units/packaging blanks 5, in particular successively arranged (and equally spaced) with respect to one another along web of packaging material 6.
  • each repeat unit/packaging blank 5 is intended to form one respective package 2, in particular the respective main body 3.
  • packaging machine 1 is configured to produce packages 2 from web of packaging material 6 such that each package 2, in particular the respective main body 3, results from one respective repeat unit/packaging blank 5.
  • each repeat unit/packaging blank 5 may be defined by one respective pattern present on web of packaging material 6.
  • the pattern is substantially identical for all repeat units and may also differ in minor details from the other ones, minor differences may e.g. be the presence of information tags indicating a production day, a production lot, personalized information or similar.
  • each lid-spout assembly 4 may be molded onto the respective packaging blank 5. Then, in use, during the formation of packages 2, in particular main bodies 3, the respective lid-spout assemblies 4 are fixed onto the respective main bodies 3.
  • each packaging blank 5 has a multilayer structure and comprises at least a fibrous base layer 7 (i.e. a layer of fibrous material), such as e.g. a paper or cardboard layer, and at least two layers of heat-seal plastic material 8, e.g. polyethylene, interposing the layer of fibrous material 7 in between one another.
  • a fibrous base layer 7 i.e. a layer of fibrous material
  • heat-seal plastic material 8 e.g. polyethylene
  • Each packaging blank 5 may also comprise a layer of gas- barrier material 9, e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film, in particular being arranged between one of the layers of the heat-seal plastic material 8 and the layer of fibrous material 7.
  • gas- barrier material e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film
  • EVOH ethylene vinyl alcohol
  • each packaging blank 5 may also comprise a further layer of heat-seal plastic material 8 being interposed between the layer of gas-barrier material 9 and the layer of fibrous material 7.
  • layer of gas-barrier material 9 may define a barrier for a gas, in particular oxygen.
  • layer of gas-barrier material 9 may allow to maintain a determined quality of the pourable food product for an enhanced time.
  • layer of gas-barrier material 9 may also be configured to act as a light-barrier material.
  • Each packaging blank 5 may also comprise a first face and a second face, in particular the first face being the face of packaging blank 5 forming the inner face of the formed package 2, in particular the respective main body 3, eventually contacting the filled pourable food product.
  • each packaging blank 5 may comprise a hole 15, in particular configured to allow for the molding of the respective lid-spout assembly 4 about hole 15.
  • each hole 15 may define a respective pouring opening of the respective package 2 formed from the respective packaging blank 3, in particular for allowing for an out-pouring of the pourable product from the respective main body 3.
  • each packaging blank 5 comprises a separation membrane 16 covering the respective hole 15 and comprising a layer of gas-barrier material.
  • separation membrane 16 comprises one or more weakening lines 17, in the example shown three, defining a plurality of covering portions 18.
  • the presence of the one or more weakening lines 17 allows that the respective covering portions 18 are attached, in particular fused, to specific portions of the respective lid-spout assembly 4. Thereby, one improves the gas-barrier properties of the respective lid-spout assembly 4.
  • each separation membrane 16 may also comprise one or more layers of heat-seal material.
  • each separation membrane 16 may comprise two layers of heat-seal material interposing the layer of gas-barrier material between one another.
  • each separation membrane 16 may be defined by a respective portion of layer of gas-barrier material 9, and in particular of respective portions of one or more layers of heat-seal plastic material 8.
  • each hole 15 may be defined by a through-hole within fibrous base layer 7.
  • a through-hole may e.g. be obtained by a punching process of a blank of a fibrous base layer lacking any hole 15 and/or through-hole.
  • the blank of a fibrous base layer may be laminated after the punching process so as to obtain the respective packaging blank 5; in particular, during the lamination process, hole 15 will be covered by the layers of heat-seal plastic material 8 so defining the respective separation membrane 16.
  • each hole 15 may extend within a plane being defined by a longitudinal axis A and a transversal axis B orthogonal to longitudinal axis A.
  • an imaginary longitudinal line parallel to longitudinal axis A and an imaginary transversal line parallel to transversal axis B intersect at a respective point, in particular a center point, of hole 15.
  • Figures 2 , 7 and 8 only longitudinal axis A and transversal axis B are shown.
  • the respective imaginary longitudinal line and the respective imaginary transversal line are substantially coaxial to the drawn longitudinal axis A and the drawn transversal axis B.
  • Each hole 15 may have a first extension, in particular a first maximum extension E1, along the imaginary longitudinal line. Additionally, each hole 15 may have a second extension, in particular a second maximum extension E2, along the imaginary transversal line.
  • the respective first maximum extension E1 of each hole 15 may be larger than the respective second maximum extension E2. In other words, each hole 15 may be longer than wider.
  • each first maximum extension E1 may range between 20 mm and 28 mm, in particular 20 mm to 25 mm.
  • a ratio between each first maximum extension E1 and the respective second maximum extension E2 may range between 1,0 and 2,8, in particular between 1,0 and 2,5.
  • each second maximum extension E2 may range between 10 mm and 20 mm.
  • Each hole 15 may be symmetric with respect to the respective imaginary longitudinal line.
  • a respective symmetry axis corresponds to the respective imaginary longitudinal line.
  • the respective symmetry axis corresponds to the drawn longitudinal axis A.
  • each hole 15 may comprise only one respective symmetry axis, namely the one corresponding to the respective imaginary longitudinal line.
  • each hole 15 may have an asymmetric shape with respect to the respective imaginary transversal line.
  • each hole 15 may be delimited by and/or may comprise a first lateral edge 40, a second lateral edge 41, a first longitudinal edge 42 and a second longitudinal edge 43.
  • first lateral edge 40, second lateral edge 41, first longitudinal edge 42 and second longitudinal edge 43 may define an annular rim of hole 15.
  • first lateral edge 40 and second lateral edge 41 may be spaced apart from one another, in particular along a direction parallel to longitudinal axis A.
  • first longitudinal edge 42 and second longitudinal edge 43 may be spaced apart from one another, in particular along a direction parallel to transversal axis B.
  • first lateral edge 40 and second lateral edge 41 may contact first longitudinal edge 42 and second longitudinal edge 43.
  • first longitudinal edge 42 and second longitudinal edge 43 may extend along a direction being (substantially) parallel to longitudinal axis A.
  • first longitudinal edge 42 and of second longitudinal edge 43 are larger than respective extensions of first lateral edge 40 and second lateral edge 41.
  • first lateral edge 40 is larger than the respective extension of second lateral edge 41.
  • first longitudinal edge 42 and of second longitudinal edge 43 equal one another.
  • each first lateral edge 40 may comprise a first connecting portion 44 being connected to first longitudinal edge 42 and a second connecting portion 45 being connected to second longitudinal edge 43.
  • each first connecting portion 44 and each second connecting portion 45 may be curved.
  • a respective radius of curvature of each first connecting portion 44 and/or of each second connecting portion 45 may range between 3,75 mm and 5 mm, in particular it may range between 3, 9 mm and 4, 3 mm, even more particular it may equal 4 mm.
  • each first connecting portion 44 and/or each second connecting portion 45 may be outwards convex.
  • each first transversal edge 40 may comprise a linear portion 46.
  • each first longitudinal edge 42 and each second longitudinal edge 43 may be curved.
  • each first longitudinal edge 42 and each second longitudinal edge 43 may comprise a respective first section 47 and a respective second section 48.
  • each first section 47 may be connected to the respective first transversal edge 40 and each second section 48 may be connected to the respective second transversal edge 41.
  • a respective radius of curvature of each first section 47 may range between 200 mm and 280 mm.
  • a respective radius of curvature of each second section 48 may range between 18 mm and 22 mm.
  • each second lateral edge 41 may comprise a respective third connecting portion 49 being connected to first longitudinal edge 41 and a fourth connecting portion 50 being connected to second longitudinal edge 42.
  • each third connecting portion 49 and each fourth connecting portion 50 may be connected to the respective second section 48.
  • each third connecting portion 49 and each fourth connecting portion 50 may be curved.
  • a respective radius of curvature of each third connecting portion 49 and/or of each fourth connecting portion 50 may range between 3,5 mm and 5 mm, in particular the respective radius of curvature may range between 3,8 mm and 4,5 mm, even more particular the respective radius of curvature may equal 4,0 mm.
  • each third connecting portion 49 and/or each fourth connecting portion 50 may be outwards convex.
  • each packaging blank 5 may also comprise a plurality of crease lines 51 along which, in use, packaging blank 5 is folded (in order to define the shape of the respective main body 3) .
  • each hole 15 may be arranged in an area delimited by two crease lines 51 parallel to the respective longitudinal axis A and two crease lines 51 parallel to the respective transversal axis B. In particular, there are no further crease lines arranged within the respective area of each hole 15.
  • At least one weakening line 17 may extend substantially parallel, in particular parallel, to and/or along the respective first axis A.
  • each separation membrane 16 may comprise more than one weakening line 17.
  • each separation membrane 16 may comprise only one weakening line 17, which preferentially may extend substantially parallel, in particular parallel, to and/or along the respective first axis A.
  • each weakening line 17 may have a (substantially) linear shape.
  • each separation membrane 16 may comprise one weakening line 17 (not shown in Figures 7 and 8 to make the other features of hole 15 clearer) extending between and being transversal, in particular perpendicular, to two further weakening lines 17.
  • the further weakening lines 17 may be spaced apart from one another along the respective first axis A.
  • each separation membrane 16 may comprise four covering portions 18.
  • each covering portion 18 may be axially moveable about a respective hinge axis C.
  • each weakening line 17 may be defined by a perforation or an incision or an ablation or a cut.
  • each weakening line 17 may be formed by operation of cutting knives or a perforation tool or an ablation tool.
  • each lid-spout assembly 4 may be configured to allow to access and/or to outpour, in particular after a manipulation of lid-spout assembly 4, the pourable food product packaged within the respective package 2.
  • the manipulation of the lid-spout assembly 4 can be reversible or irreversible.
  • each lid-spout assembly 4 comprises a collar 19 having a pouring outlet 20 (covered in Figure 6 by a portion of lid-spout assembly 4).
  • pouring outlet 20 may be aligned with respect to the respective hole 15, even more particular to superimpose at least a portion of the respective hole 15.
  • Each collar 19 may comprise and/or delimit a flow channel 21 configured to allow for a flow of the pourable food product within flow channel 21 itself.
  • Flow channel 21 may extend between an inlet opening 22 of collar 19 and the respective pouring outlet 20.
  • each lid-spout assembly 4 may comprise a base frame 23 connecting the respective lid-spout assembly 4 to the respective packaging blank 5 and about the respective hole 15.
  • the respective collar 19 protrudes from the respective base frame 23.
  • each base frame 23 may be formed such to cover the respective hole 15 and may comprise an aperture aligned with pouring outlet 20 and inlet opening 22.
  • an extension of each inlet opening 22 and/or each pouring outlet 20 may be smaller than an extension of the respective hole 15.
  • each inlet opening 22 and/or each pouring outlet 20 may cover only a portion of hole 15.
  • the other portions of hole 15 not being covered by inlet opening 22 and/or each pouring outlet 20 may be covered by base frame 23.
  • each lid-spout assembly 4 may also comprise a lid element 24 configured to cover the respective pouring outlet 20.
  • each collar 19 and/or each pouring outlet 20 and/or each inlet opening 22 may extend along a respective third axis, in particular parallel to the respective first axis A, and a respective fourth axis, in particular parallel to the respective second axis B.
  • each third axis is (substantially) perpendicular to the respective fourth axis.
  • a third extension of each collar 19 and/or each pouring outlet 20 and/or each inlet opening 22 along the respective third axis may be larger than a fourth extension of each collar 19 and/or each pouring outlet 20 and/or each inlet opening 22 along the respective fourth axis.
  • each collar 19 and/or each pouring outlet 20 and/or each inlet opening 22 may be symmetric with respect to the respective third axis, and preferentially may be non-symmetric with respect to the respective fourth axis. In other words, each collar 19 and/or each pouring outlet 20 and/or each inlet opening 22 has only one symmetry axis.
  • each collar 19 may comprise an outer surface 25, in particular facing away from the respective flow channel 21.
  • each collar 19 may also comprise an inner surface 26 opposite to outer surface 25, and in particular facing the respective flow channel 21.
  • each covering portion 18 may be configured to move during molding of the respective lid-spout assembly 4 such to cover a respective portion of the respective outer surface 25.
  • the presence of at least one weakening line 17, and preferentially also the interaction with tools (see further below) used during molding of lid-spout assembly 4, allows a controlled movement of the covering portions 18.
  • each lid-spout assembly 4 comprises collar 19, in particular respective outer surface 25, which is at least partially covered by a layer of gas-barrier material.
  • each lid-spout assembly 4 comprises collar 19, in particular respective outer surface 25, which comprises a layer of gas-barrier material.
  • each covering portion 18 may angularly move about the respective hinge axis C such to cover the respective portion of the respective outer surface 25.
  • molding of each lid-spout assembly 4 about the respective hole 15 may be obtained by means of a molding tool 29, which comprises a respective molding cavity 30.
  • a shape of the respective molding cavity 30 may define the shape of the respective lid-spout assembly 4.
  • each molding tool 29 may comprise a plurality of mold portions 31, which may define in cooperation with one another molding cavity 30 and which may execute a relative movement for opening or closing the respective molding tool 29.
  • At least one mold portion 31 may be configured to move, in use, covering portions 18 such that during insertion of a molten polymer into molding cavity 30 covering portions 18 are fused to the respective portions of outer surface 25.
  • movement of covering portions 18 is driven by the flow of molten polymer.
  • the presence of the one or more weakening lines 17 allows to correctly position covering portions 18 in the molding cavity 30 and therefore to obtain the controlled fusion of covering portions 18 onto the respective portions of outer surface 25.
  • Molding tool 29 may also comprise an injection point 32 through which the molten polymer enters into molding cavity 30.
  • injection point 32 may be laterally displaced with respect to a central axis of the respective collar 19 of the respective lid-spout assembly 4 formed during molding of lid-spout assembly 4 and/or of molding cavity 30.
  • injection point 32 is chosen such that, in use, the molten polymer flows such that covering portions 18 can fuse onto outer surface 25.
  • the flow of the molten polymer is such that covering portions 18 are moved radially away from the respective central axis.
  • packaging machine 1 comprises at least:
  • molding apparatus 33 may comprise one or more molding tools 29 for molding lid-spout assemblies 4 onto respective packaging blanks 5.
  • molding apparatus 33 may be configured such that molding apparatus 33 molds more than one lid-spout assembly 4 at a time, each lid-spout assembly 4 being molded onto the respective packaging blanks 5.
  • packaging machine 1 may be supplied with packaging blanks 5, in particular the respective web of packaging material 6.
  • packaging blanks 5, in particular the respective web of packaging material 6 may be produced within a converting apparatus distinct from packaging machine 1.
  • the converting apparatus may define a packaging blank forming apparatus.
  • Such a converting apparatus may comprise:
  • the weakening line forming tool in particular the punching tool, may comprise cutting knives or a perforation tool.
  • each base package blank is (substantially) identical to the respective packaging blank 5 with the difference of lacking the respective one or more weakening lines 17.
  • the converting apparatus may also comprise means for forming the base package blanks.
  • the converting apparatus may also be present within a plant distinct and arranged at a different location from a production plant within which packaging machine 1 is installed.
  • packaging machine 1 may comprise a packaging blank forming apparatus for forming packaging blanks 5 from the respective base package blanks.
  • the packaging blank forming apparatus comprises the advancement device and the weakening line forming tool.
  • the base package blanks are provided to packaging machine 1 and packaging machine 1 may form the one or more weakening lines 17 by operation of the packaging blank forming apparatus.
  • packaging forming apparatus 34 may be configured to form and fill packages 2 after molding of lid-spout assemblies 4 onto packaging blanks 5.
  • package forming apparatus 34 may comprise at least:
  • molding apparatus 33 may be arranged upstream of tube forming and sealing device 37 along web advancement path P.
  • conveying device 35 may be configured to advance web packaging material 6 within molding apparatus 33 intermittently.
  • molding apparatus 33 may mold the respective lid-spout assemblies 4 onto the respective packaging blanks 5 and when web of packaging material 6 is advanced the respective packaging blanks 5, which have received their respective lid-spout assemblies 4, may be moved away from molding apparatus 33 and new packaging blanks 5 may be placed within molding apparatus 33.
  • packaging machine 1 produces packages 2 of a pourable product, each package 2 having one respective main body 3 and one respective lid-spout assembly 4.
  • packages 2 in particular the respective main bodies 3, are obtained by forming and filling the respective packaging blanks 5.
  • the respective lid-spout assemblies 4 may be molded about the respective holes 15 of the respective packaging blanks 5.
  • molding of each lid-spout assembly 4 may comprise the steps of:
  • a sub-step of feeding may be executed during which the respective packaging blank 5 is fed to molding apparatus 33 and a sub-step of discharging is executed during which the respective packaging blank 5 together with the respective lid-spout assembly 4 is discharged from molding apparatus 33.
  • the step of providing may also comprise the sub-steps of:
  • the sub-step of supplying and the sub-step of forming are executed prior to the sub-step of feeding and the sub-step of discharging.
  • one or more weakening lines 17 may be formed by operation of the weakening line forming tool, in particular cutting knives or a perforation tool or an ablation tool.
  • sub-step of forming and the sub-step of supplying may be executed by the packaging blank forming apparatus.
  • the respective molding tool 29 is closed.
  • the respective mold portions 31 are approached to one another so as to form and close the respective molding cavity 30.
  • at least one of the mold portions 31 moves the respective covering portions 18, preferentially so as to align the respective covering portions 18 within the respective molding cavity 30.
  • the flow of molten polymer, in particular introduced through the respective injection point 32 moves, in particular radially moves, covering portions 18, in particular away from the respective central axis.
  • molding of each lid-spout assembly 4 may comprise the step of withdrawing, during which the respective molding tool 29 is withdrawn from the respective packaging blank 5.
  • the respective molding tool 29 is opened by moving away the molding portions 31 from one another.
  • formation of packaging blanks 5 may occur within packaging machine 1 according to the sub-step of supplying and the sub-step of forming, in particular by operation of the packaging blank forming apparatus.
  • the sub-step of supplying and the sub-step of forming may be part of a converting method, in particular within the converting apparatus.
  • the base package blank prior to the sub-step of supplying and the sub-step of forming, may be produced within the converting apparatus.
  • the converting method may also comprise the steps of:
  • the respective separation membrane 16 may be obtained by those portions of the respective one or more layers of heat-seal plastic material 8 and of the at least one layer of gas-barrier material 9 being arranged at the respective hole 15.
  • the Applicant has observed that the specific shape and size(s) of hole 15 allows to form packages 2 having the respective main body 3 and the respective molded lid-spout assembly 4 so configured that respective portions of the respective collar 19 are efficiently covered by a layer of gas-barrier material. This again allows to guarantee that the quality of the pourable product remains at desired levels for an increased time.
EP23168887.0A 2022-04-29 2023-04-20 Flan d'emballage et emballage Pending EP4269268A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22170896 2022-04-29

Publications (1)

Publication Number Publication Date
EP4269268A1 true EP4269268A1 (fr) 2023-11-01

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EP23168887.0A Pending EP4269268A1 (fr) 2022-04-29 2023-04-20 Flan d'emballage et emballage

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EP (1) EP4269268A1 (fr)
WO (1) WO2023208705A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830273A (en) * 1988-05-02 1989-05-16 International Paper Company Plastic pour spout bonding
DE4409946A1 (de) * 1994-03-23 1995-09-28 Pkl Verpackungssysteme Gmbh Quaderförmige Flachgiebelverbundpackung und Verfahren zu ihrer Herstellung
EP3835224A1 (fr) * 2019-12-10 2021-06-16 Tetra Laval Holdings & Finance S.A. Matériau d'emballage pour la formation de conteneurs d'emballage et conteneur d'emballage formé à partir du matériau d'emballage
WO2021239610A1 (fr) * 2020-05-27 2021-12-02 Tetra Laval Holdings & Finance S.A. Ensemble couvercle-bec verseur pour un emballage, emballage comprenant un ensemble couvercle-bec verseur et procédé de moulage d'un ensemble couvercle-bec verseur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830273A (en) * 1988-05-02 1989-05-16 International Paper Company Plastic pour spout bonding
DE4409946A1 (de) * 1994-03-23 1995-09-28 Pkl Verpackungssysteme Gmbh Quaderförmige Flachgiebelverbundpackung und Verfahren zu ihrer Herstellung
EP3835224A1 (fr) * 2019-12-10 2021-06-16 Tetra Laval Holdings & Finance S.A. Matériau d'emballage pour la formation de conteneurs d'emballage et conteneur d'emballage formé à partir du matériau d'emballage
WO2021239610A1 (fr) * 2020-05-27 2021-12-02 Tetra Laval Holdings & Finance S.A. Ensemble couvercle-bec verseur pour un emballage, emballage comprenant un ensemble couvercle-bec verseur et procédé de moulage d'un ensemble couvercle-bec verseur

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