US20210237925A1 - A sealed package containing a pourable food product and a sheet packaging material for producing a sealed package containing a pourable food product - Google Patents

A sealed package containing a pourable food product and a sheet packaging material for producing a sealed package containing a pourable food product Download PDF

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Publication number
US20210237925A1
US20210237925A1 US17/048,958 US201917048958A US2021237925A1 US 20210237925 A1 US20210237925 A1 US 20210237925A1 US 201917048958 A US201917048958 A US 201917048958A US 2021237925 A1 US2021237925 A1 US 2021237925A1
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US
United States
Prior art keywords
package
transversal
length
crease line
packaging material
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Pending
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US17/048,958
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English (en)
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
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Tetra Laval Holdings and Finance SA
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Publication date
Application filed by Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Assigned to TETRA LAVAL HOLDINGS & FINANCE S.A. reassignment TETRA LAVAL HOLDINGS & FINANCE S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FERRARI, Giulio, FORCELLINI, Carlo, SIRIGNANO, Cristina, BARBIERI, MARCELLO, CIVA, Patricia, MAMELI, Alberto
Publication of US20210237925A1 publication Critical patent/US20210237925A1/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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.
  • FIG. 1 is a perspective view of a sealed package according to the present invention
  • FIG. 2 is a smaller-scale front view of the package of FIG. 1 ;
  • FIG. 3 is a smaller-scale side view of the package of FIG. 1 ;
  • FIG. 4 is a smaller-scale bottom view of the package of FIG. 1 ;
  • FIG. 5 is the projection, along a vertical direction, of a top panel of the package of FIG. 3 on a horizontal plane containing a top front edge of the top panel itself;
  • FIG. 6 is a front view of a basic unit of a sheet packaging material according to the present invention, from which the package of FIGS. 1 to 5 is obtained;
  • FIG. 7 is a perspective view of a sealed package according to a different embodiment of the present invention.
  • FIG. 8 is a front view of a basic unit of a sheet packaging material according to the present invention, from which the package of FIG. 7 is obtained;
  • FIG. 9 is a perspective view of a sealed package according to another embodiment of the present invention.
  • FIG. 10 is a front view of a basic unit of a sheet packaging material according to the present invention, from which the package of FIG. 9 is obtained;
  • FIG. 11 is a perspective view of a sealed package according to a further embodiment of the present invention.
  • FIG. 12 is a front view of a basic unit of a sheet packaging material according to the present invention, from which the package of FIG. 11 is obtained.
  • Number 1 in FIGS. 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 FIG. 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 8 a, a bottom rear edge 8 b parallel to bottom front edge 8 a and two bottom side edges 8 c, orthogonal to bottom front edge 8 a and bottom rear edge 8 b.
  • bottom front edge 8 a and bottom rear edge 8 b have the same length; the same applies to bottom side edges 8 c , 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 8 a, bottom rear edge 8 b and bottom side edges 8 c 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 ( FIG. 4 ).
  • Top portion 4 includes a flat and slanted top panel 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 9 a parallel to bottom front edge 8 a and bottom rear edge 8 b, a top rear edge 9 b, parallel to top front edge 9 a and arranged higher than the top front edge 9 a itself, and two top side edges 9 c, orthogonal to top front edge 9 a and top rear edge 9 b and inclined with respect to longitudinal direction A.
  • segments or contour edges i.e. a top front edge 9 a parallel to bottom front edge 8 a and bottom rear edge 8 b, a top rear edge 9 b, parallel to top front edge 9 a and arranged higher than the top front edge 9 a itself, and two top side edges 9 c, orthogonal to top front edge 9 a and top rear edge 9 b and inclined with respect to longitudinal direction A.
  • top peripheral outline 9 extends transversally with respect to longitudinal direction A.
  • top front edge 9 a and top rear edge 9 b have the same length; the same applies to top side edges 9 c, 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 ( FIG. 6 ) of the packaging material 2 .
  • Opening device 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 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 8 a and top front edge 9 a, and at opposite sides, by respective rounded and convex lateral edge zones 7 .
  • a second side wall portion 6 designed to define a rear face of package 1 , also has a substantially rectangular configuration and is delimited, at bottom and top, by straight bottom rear edge 8 b and top rear edge 9 b, and at opposite sides, by respective rounded and convex lateral edge zones 7 ; this second side wall portion 6 faces the side wall portion 6 designed to define the front face of the package 1 and has a height, parallel to longitudinal direction A, greater than the height of this latter side wall portion 6 .
  • 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 ( FIG. 5 ) obtained by projecting, along longitudinal direction A, top panel 14 on a reference plane P ( FIG. 3 ) parallel to the bottom panel 10 , crossing package 1 and containing top front edge 9 a 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 Q 1 , corresponding to bottom front edge 8 a, a top rear segment Q 2 , corresponding to bottom rear edge 8 b, and two top side segments Q 3 , respectively corresponding to bottom side edges 8 c.
  • top side segments Q 3 have the same length, which is in turn different from the length of bottom side edges 9 c. More specifically, in the example shown, the length of bottom side edges 9 c is smaller than the length of top side segments Q 3 .
  • top front segment Q 1 and top rear segment Q 2 have the same length, which is in turn different from the length of bottom front edge 8 a and bottom rear edge 8 b.
  • the length of bottom front edge 8 a and bottom rear edge 8 b is greater than the length of top front segment Q 1 and top rear segment Q 2 .
  • the packaging material 2 from which package 1 is made is shown in FIG. 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 FIG. 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 20 a 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 20 b of longitudinal sealing band 20 extending perpendicularly from the top transverse sealing band 19 and opposite to end portion 20 a; in greater detail, top transverse sealing band 19 divides top panel 14 into two zones 14 a, 14 b and end portion 20 b of longitudinal sealing band 20 extends on one ( 14 b ) of such zones 14 a , 14 b from an intermediate portion of the top transverse sealing band 19 .
  • top transverse sealing band 19 is folded on zone 14 b and end portion 20 b of longitudinal sealing band 20 ; in this way, zone 14 a has a bigger area than zone 14 b 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 26 c converge towards top central portion 26 a.
  • 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 36 a, 36 b parallel to longitudinal direction A and extending between transversal crease lines 25 and 32 .
  • Longitudinal crease lines 36 b are the most internal ones, whilst longitudinal crease lines 36 a are located near opposite side boundary edges 22 ; the area between longitudinal crease lines 36 b as well as the areas delimited by longitudinal crease lines 36 a 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 and longitudinal crease lines 36 a and 36 b , 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 36 a and 36 b 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 40 a, 40 b parallel to longitudinal direction A and extending between transversal crease lines 26 and 33 .
  • Longitudinal crease lines 40 b are the most internal ones, whilst longitudinal crease lines 40 a are located near opposite side boundary edges 22 ; the area between longitudinal crease lines 40 b as well as the areas delimited by longitudinal crease lines 40 a 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 40 b.
  • 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 26 c of transversal crease line 26 .
  • each pair of additional crease lines 41 , 42 delimits a triangle 43 with the respective top side portion 26 c of transversal creased line 26 .
  • Each area between longitudinal crease lines 40 a and 40 b is configured to define one respective top lateral flap 15 of package 1 .
  • the length of top central portion 26 a of transversal crease line 26 is different from the length of bottom central portion 25 a of transversal crease line 25 ; in addition, the length of each of bottom side portions 25 c 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 26 c of transversal crease line 26 on a reference line S parallel to transversal crease line 25 and containing top central portion 26 a.
  • top central portion 26 a is smaller than the length of bottom central portion 25 a; in a different manner, the length of each projection R is greater than the length of the corresponding bottom side portion 25 c.
  • the length of bottom central portion 25 a corresponds to the length of the segment of transversal crease line 32 comprised between longitudinal crease lines 36 b; in a completely analogous manner, the length of top central portion 26 a corresponds to the length of the segment of transversal crease line 33 comprised between longitudinal crease lines 40 b.
  • bottom side portions 25 c whose lengths correspond to the lengths of the respective segments of transversal crease line 32 comprised between each pair of longitudinal crease lines 36 a and 36 b .
  • 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 40 a and 40 b.
  • top front segment Q 1 and top rear segment Q 2 of top quadrilateral Q corresponds to the length of top central portion 26 a; in an analogous manner, the length of top side segments Q 3 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 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 FIG. 7 indicates as a whole a different embodiment of a sealed package according to the present invention and obtained by a basic unit M′ ( FIG. 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 25 a and top central portions 26 a of transversal crease lines 25 , 26 as well as between bottom side portions 25 c of transversal crease line 25 and respective projections R on reference line S.
  • Number 1 ′′ in FIG. 9 indicates as a whole a different embodiment of a sealed package according to the present invention and obtained by a basic unit M′′ ( FIG. 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 9 a ′′, 9 b ′′, 9 c ′′) 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.
  • top side portions 26 c ′′ of transversal crease line 26 ′′ on reference line S which coincide with the top side portions 26 c ′′ themselves; in fact, in this case, reference line S coincides with top transversal crease line 26 ′′.
  • Number 1 ′′′ in FIG. 11 indicates as a whole a different embodiment of a sealed package according to the present invention and obtained by a basic unit M′′′ ( FIG. 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 25 a and top central portion 26 a ′′ of transversal crease lines 25 , 26 ′′ as well as between bottom side portions 25 c and top side portion 26 c ′′ of the same transversal crease lines 25 , 26 ′′.
  • packages 1 , 1 ′, 1 ′′, 1 ′′′ and basic units M, M′, M′′, M′′′ of packaging material 2 according to the present invention will be clear from the above description.
  • all the solutions of packages 1 , 1 ′, 1 ′′, 1 ′′′ described present bottom portions 3 slightly different from the top portions 4 .
  • a slimmer bottom portion 3 than the top portion 4 permits to compensate the bulging effect produced by gravity on the pourable product contained in the package when placed in the upright position, which product tends to accumulate in the bottom portion of the package 1 , 1 ′, 1 ′′, 1 ′′′, 1 ′′′′ itself.

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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)
US17/048,958 2018-04-20 2019-04-15 A sealed package containing a pourable food product and a sheet packaging material for producing a sealed package containing a pourable food product Pending US20210237925A1 (en)

Applications Claiming Priority (3)

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EP18168373.1 2018-04-20
EP18168373 2018-04-20
PCT/EP2019/059680 WO2019201860A1 (en) 2018-04-20 2019-04-15 A sealed package containing a pourable food product and a sheet packaging material for producing a sealed package containing a pourable food product

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US20210237925A1 true US20210237925A1 (en) 2021-08-05

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US17/048,958 Pending US20210237925A1 (en) 2018-04-20 2019-04-15 A sealed package containing a pourable food product and a sheet packaging material for producing a sealed package containing a pourable food product

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US (1) US20210237925A1 (de)
EP (2) EP4279408A3 (de)
JP (2) JP7436384B2 (de)
CN (2) CN210761729U (de)
BR (1) BR112020018388A2 (de)
ES (1) ES2963263T3 (de)
MX (1) MX2020010758A (de)
WO (1) WO2019201860A1 (de)

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EP4328143A1 (de) * 2022-08-02 2024-02-28 Tetra Laval Holdings & Finance S.A. Verpackungszuschnitt zum formen einer verpackung und verpackung aus einem verpackungszuschnitt

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EP4279408A3 (de) 2024-03-20
JP7436384B2 (ja) 2024-02-21
EP3556673A1 (de) 2019-10-23
JP2021522114A (ja) 2021-08-30
MX2020010758A (es) 2020-11-09
EP3556673C0 (de) 2023-10-11
BR112020018388A2 (pt) 2020-12-22
WO2019201860A1 (en) 2019-10-24
EP4279408A2 (de) 2023-11-22
ES2963263T3 (es) 2024-03-26
CN110386317A (zh) 2019-10-29
CN210761729U (zh) 2020-06-16
JP2024045472A (ja) 2024-04-02
EP3556673B1 (de) 2023-10-11

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