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
  • B65D5/4266—Folding lines, score lines, crease lines
• • 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
  • B65D5/065—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container with supplemental means facilitating the opening, e.g. tear lines, tear tabs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/25—Surface scoring
• • 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
  • B65D5/02—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
  • B65D5/067—Gable-top containers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B2110/00—Shape of rigid or semi-rigid containers
  • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section

Definitions

• the present solution relates to a packaging material, especially for packaging material intended to form individual packages for e.g. liquid food. It also relates to a method for providing such packaging material, as well as to a method for forming individual packages from such packaging material.
• the packaging material comprises a carton-based material layer, such as paper board or card board, having inner and outer layers of polymer which are laminated together in a lamination apparatus.
• the packaging material is fed to a filling machine either on a roll of packaging material or as individual packaging material blanks.
• a filling machine which could be either roll-fed or blank-fed includes various stations for transforming the packaging material fed into it into filled and sealed three- dimensional packages.
• the forming process i.e. the method of transforming the packaging material to a three-dimensional object, is facilitated by providing the packaging material with crease lines.
• the packaging material will fold at the positions of the crease lines it is possible to configure the packaging material beforehand according to various different shapes.
• Such shapes include e.g. Tetra Rex®, Tetra Brik®, and Tetra Prisma®. If a packaging material is intended to be transformed into a Tetra Rex® package, a web of packaging material is cut into individual blanks and a specific crease line pattern, corresponding to the final shape, is provided onto the packaging material before the packaging material blanks enter the filling machine.
• the packaging material comprises a set of crease lines along which the packaging material is intended to be folded in order to form a package, wherein the set of crease lines comprises at least one first crease line being configured to fold easier than an adjacent second crease line.
• the set of crease lines may be formed by compressing the packaging material.
• the first crease line may be compressed to a greater extent than the adjacent second crease line, and/or the width of the first crease line may be greater than the width of the second crease line.
• the first and second crease lines may be intended to define a corner surface of the package.
• the corner surface may extend along the vertical direction of the package to be formed.
• the packaging material may be in the form of a blank intended to form an individual package, or in the form of a web intended to form a series of individual packages.
• the distance between the first and second crease lines may be 30 mm or less.
• a method for producing a packaging material comprises providing a set of crease lines along which the packaging material is intended to be folded in order to form a package, by providing at least one first crease line and providing an adjacent second crease line, wherein the first crease line is configured to fold easier than the adjacent second crease line.
• the first and second crease lines may be provided simultaneously.
• the set of crease lines may be provided by compressing the packaging material.
• the width and/or depth of the first crease line may be greater than the width and/or depth of the second crease line.
• a method for producing a package comprises providing a packaging material by performing the method according to the second aspect, and folding, filling, and sealing the packaging material.
• the first and second crease lines of the packaging material may be folded in a single folding operation.
• Fig. 1 is an isometric view of a package produced by a packaging material according to an example
• Fig. 2 is an isometric view of a package produced by a packaging material according to an example
• Fig. 3b is an isometric view of the packaging material shown in Fig. 3a during raising of the package;
• Fig. 4 is a view of a packaging material blank for producing a package similar to the package shown in Fig. 2;
• Fig. 5a is a cross-sectional view of a packaging material according to an example
• Fig. 5b is a cross-sectional view of a packaging material according to a second example
• Fig. 6 is cross-sectional view of a packaging material according to an embodiment.
• Fig. 7 is a schematic view of a method according to an embodiment.
• FIG. 1 an example package 1 is illustrated.
• the package 1 is formed into the three-dimensional shape from a packaging material 3.
• Shaping of the packaging material 3 is performed by folding the packaging material along a set 10 of pre-arranged crease lines 10a-I. It should be understood that not all crease lines are provided with reference numerals; additional crease lines (not shown) are provided on the package material 3 for complete folding and forming of the package 1 .As indicated in Fig.
• the crease lines 10a-d are provided in order to define a longitudinal body 12 of the package 1
• the crease lines 10f-j are provided in order to define the upper gable-top end 14 of the package 1
• the crease lines 10k-I are provided in order to define the bottom end 16 of the package 1 .
• the crease line 10a forms a first crease line being arranged adjacent to a second crease line 10b.
• the first and second crease lines 10a-b together define an corner surface 18 of the package 1 , wherein the corner surface 18 extends at an angle relative its adjacent panels (i.e. one panel extending between crease lines 10a and 10d, and one panel extending between crease lines 10b and 10c).
• the corner surface 18 is not only provided to improve the aesthetic appearance of the package 1 , but also to improve gripping of the package 1 .
• FIG. 2 another example of a package 1 ' is illustrated.
• the package 1 ' is formed into the three-dimensional shape from a planar packaging material 3' by folding the packaging material 3' along a set 10' of pre-arranged crease lines 10'a-l.
• the crease lines 10'a-d are provided in order to define a longitudinal body 12' of the package 1 '
• the crease lines 10'f-j are provided in order to define the upper end 14' of the package 1 '
• the crease lines 10'k-l are provided in order to define the bottom end 16' of the package 1 '.
• additional crease lines are provided on the package material for complete folding and forming of the package 1 '.
• the crease line 10'a forms a first crease line being arranged adjacent to a second crease line 10'b.
• the first and second crease lines 10'a-b together define a corner surface 18' of the package 1 '.
• a package similar to the package 1 shown in Fig. 1 is preferably produced from a blank 20 of packaging material 3 shown in Fig. 3a.
• the blank 20 is pre-cut so that the dimensions of the blank 20 will result in a package of desired size and shape.
• the lateral ends 22a-b are sealed to each other in order to form a so-called half folded blank
• Such a half-folded blank is usually produced at a site different from the site of a filling machine where the final raising of the of the half-folded blank is effected.
• the blank 20 When being loaded into a filling machine the blank 20 is also folded along the crease lines 10c-d for forming an open ended main body 12 of the package.
• the corners of the main body 12 are formed by folding the main body along crease line 10e, as well as along crease lines 10a-b. Subsequently one of the upper or lower ends 14, 16 are formed and sealed whereafter filling and final sealing of the still open end is performed.
• a web of paperboard material comprising the blanks corresponding to the blank in Fig. 3a is loaded into a filling machine where the blanks are cut into individual blanks 3a and where the panels 22a and 22b are sealed to form a tube. Thereafter the blank 20 is raised into a container in the same fashion as described in the previous paragraph.
• a rectangular body 12 When folding the crease lines 10a-e a rectangular body 12 will be formed, however having one corner defined by the angled corner surface 18 arranged between the first crease line 10a and the second crease line 10b.
• the packaging material 3 When defining the corners of the rectangular main body, during folding of the crease lines 10a-b, 10e the packaging material 3 will be subject to a force requiring the packaging material 3 to move in a desired direction. This means that for folding the main body 12 (and/or the upper or bottom end 14, 16) a single operation is performed whereby the crease lines 10a-b, 10e will allow for simultaneous folding. This is shown in Fig. 3b. Here the lateral ends 22a-b have been sealed to provide for a longitudinal sealing 24, and folding is performed along the crease lines 10a-b, 10e to provide the rectangular main body 12. Raising of the package 1 may e.g.
• the first crease line 10a will begin to fold before the second crease line 10b begins to fold. Should the opposite occur, i.e. that the second crease line 10b begins to fold prior to the first crease line 10a, there is a risk that the semi-raised package 1 will be locked in position, preventing the first crease line 10a to fold. The resulting package 1 will thus not correspond to the desired shape. On the other hand, as the raising force comes from the left when the first crease line 10a begins folding the second crease line 10b will fold automatically.
• packaging material 3 is configured to allow for controlled folding as will be further described with reference to Figs. 5-6.
• a package similar to the package 1 ' shown in Fig. 2 is preferably produced from a web 30 of packaging material 3' shown in Fig. 4.
• the web 30 is dimensioned so as to accommodate several consecutive segments 30a-c, 32a-c.
• Each segment 30a-c, 32a-c is designed to provide a single package 1 '.
• Segments 30a-c are longitudinally aligned while the segments 32a-c are also longitudinally aligned in the machine direction MD. However the segments 30a-c are staggered relative segments 32a-c in the cross- direction CD. Before forming and filling segments 32a-c are cut from segments 30a-c such that the web 30 entering the filling machine has only one row of segments 30a-c.
• Each segment 30a-c, 32a-c is configured such that the dimensions of one segment 30a-c, 32a-c will result in a package 1 ' of desired size and shape.
• the lateral ends 34'a-b are sealed to each other so that a tube is formed.
• the tube is also folded along the crease lines 10'a-e for forming an open ended main body 12' of the package.
• the ends 14', 16' are formed and sealed, and the final package 1 ' is separated from the upstream tube.
• a rectangular body 12' When folding the crease lines 10'a-e a rectangular body 12' will be formed, however having one corner defined by the angled corner surface 18' arranged between the first crease line 10'a and the second crease line 10'b.
• the folding sequence is typically subject to the same concerns as described with reference to Fig. 3b, i.e. it is important to allow for initial folding of the first crease line 10'a before folding of the second crease line 10'b is initiated.
• first and second crease lines 10a-b, 10'a-b could be configured in a wide range of alternatives, e.g. as indicated by Figs. 1 b-h.
• the first and second crease lines 10a-b, 10'a-b could be curved, or they may not extend along the entire length of the main body 12, 12'.
• the angled corned surfaces 18, 18' could be provided at any corner of the package 1 , 1 ', e.g. they could replace one of the horizontal crease lines 10f, j, k, 10'e, f, j, k, I.
• Controlled folding is preferably effected for two adjacent crease lines 10a-b, 10'a-b.
• the first and second crease line 10a-b, 10'a-b may typically, but not necessarily, form a corner surface 18, 18' of the package 1 , 1 '.
• the distance between the first and second crease line 10a-b, 10'a-b may be in the range of 5-30 mm, even more preferably between 10-20 mm.
• crease line 10 is compressed only, i.e. no embossed feature is present on the inside of the packaging material 3, 3'.
• This kind of crease line 10 may be realized by pressing the outside inwards while having a planar anvil on the inside of the packaging material 3, 3'.
• crease lines 10a-I, 10'a-l are not identically dimensioned.
• Fig. 6 a part of a packaging material 3, 3' is shown in which two adjacent crease lines 10a-b, 10'a-b are
• first crease line 10a, 10'a is configured to fold easier than the second crease line 10b, 10'b.
• the first crease line 10a, 10'a is in the shown example not only compressed to a greater extent, but its width is also greater than the width of the second crease line 10b, 10'b. It should be noted that it is not required to have both increased depth and increased width, but each one of these features by its own will reduce the robustness of the packaging material 3, 3' compared to the second crease line 10b, 10'b.
• the entire length of the first crease line 10a, 10'a may not be homogenously formed, but only parts of the first crease line 10a, 10'a may be dimensioned different from the second crease line 10b, 10'b still resulting in the first crease line 10a, 10'b being easier to fold than the second crease line 10b, 10'b.
• a method 100 for producing a packaging material 3, 3', as well as producing a package 1 , 1 ' from such packaging material 1 , 1 ' is shown.
• the method 100 comprises providing 102 a set of crease lines 10, 10' along which the packaging material is intended to be folded in order to form a package, by i) providing 104 at least one first crease line 10a, 10'a and ii) providing 106 an adjacent second crease line 10b, 10'b, wherein the first crease line 10a, 10'a is configured to fold easier than the adjacent second crease line 10b, 10'b.
• the first and second crease lines 10a-b, 10'a-b are provided simultaneously, for example by feeding the packaging material 3, 3' through a nip formed between a creasing roller and an anvil roller.
• the set of crease lines 10, 10' may be provided by compressing the packaging material 3, 3' locally.
• the method 100 may further comprise folding 108, filling 1 10, and sealing 1 12 the packaging material to form an individual package 1 , 1 '.
• the first and second crease lines 10a-b, 10'a-b of the packaging material 3, 3' are preferably folded in a single folding operation performed at the filling machine.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cartons (AREA)
• Making Paper Articles (AREA)
• Wrappers (AREA)
• Buffer Packaging (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58544856

Family Applications (1)

Country Status (7)

Families Citing this family (2)

Citations (4)

Family Cites Families (2)

• 2018
  • 2018-04-09 EP EP18166350.1A patent/EP3388352B1/en active Active
  • 2018-04-09 BR BR112019021273-6A patent/BR112019021273B1/pt active IP Right Grant
  • 2018-04-09 ES ES18166350T patent/ES2763173T3/es active Active
  • 2018-04-09 JP JP2019555965A patent/JP7084941B2/ja active Active
  • 2018-04-09 WO PCT/EP2018/059023 patent/WO2018189109A1/en not_active Ceased
  • 2018-04-09 US US16/604,765 patent/US20200377255A1/en not_active Abandoned
  • 2018-04-11 CN CN201810319749.0A patent/CN108688924B/zh active Active
  • 2018-04-11 CN CN201820507155.8U patent/CN208761092U/zh not_active Withdrawn - After Issue

Patent Citations (4)

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