CN117083227A - Composite packaging material sheet, method of forming composite packaging material sheet, composite package, and method of forming composite package - Google Patents

Composite packaging material sheet, method of forming composite packaging material sheet, composite package, and method of forming composite package Download PDF

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Publication number
CN117083227A
CN117083227A CN202280023222.8A CN202280023222A CN117083227A CN 117083227 A CN117083227 A CN 117083227A CN 202280023222 A CN202280023222 A CN 202280023222A CN 117083227 A CN117083227 A CN 117083227A
Authority
CN
China
Prior art keywords
packaging material
opening
sheet
composite
crease line
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
CN202280023222.8A
Other languages
Chinese (zh)
Inventor
彼得罗·马提尼
弗朗西斯卡·塔沃尼
毛里西奥·菲利皮尼
朱利奥·贝尔塔尼
丹尼尔·戈尔菲耶里
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 CN117083227A publication Critical patent/CN117083227A/en
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
    • B65D5/4266—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
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/14—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means
    • B65D47/141—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means for stoppers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

A sheet (21, 21', 21") of composite packaging material for forming a composite package (1, 1', 1") is described, comprising at least: a sheet base (22, 22") of packaging material having a designated opening; and an opening device (3, 3', 3") applied to the sheet-material base (22, 22") and surrounding the given opening. The sheet of packaging material base (22, 22") comprises at least a first face and a second face (24) opposite the first face, and a plurality of crease lines (30) defining a plurality of panels (31). The opening device (3, 3', 3") comprises a base frame (15), the base frame (15) being adapted to couple the opening device (3, 3', 3") to the sheet of packaging material substrate (22, 22 ') and to enclose the designated opening. The base frame (15) comprises at least a first flange (34), the first flange (34) being connected to the second face (24) and having a rectilinear peripheral portion (36), the rectilinear peripheral portion (36) being adjacent and parallel to a respective crease line (30) defining a reference crease line (37).

Description

Composite packaging material sheet, method of forming composite packaging material sheet, composite package, and method of forming composite package
Technical Field
The present invention relates to a sheet of composite packaging material for forming a composite package, and in particular to a composite package having a sealing body filled with a pourable product, in particular with a pourable food product, and an opening device.
Furthermore, the invention relates to a method for forming a sheet of composite packaging material for forming a composite package.
Advantageously, the present invention also relates to a composite package, in particular a composite package having a sealed body filled with a pourable product, in particular with a pourable food product, and comprising an opening device.
In addition, the present invention relates to a method for forming a composite package for pourable products, especially pourable food products.
Background
It is well known that many liquid or pourable food products, such as fruit juice, UHT (ultra-high temperature treated) milk, wine, tomato sauce, etc., are sold in composite packages made of multiple layer composite packaging material.
A typical example is a parallelepiped-shaped package for pourable food products called a sterile bag (Tetra Brik Aseptic (registered trademark)), which is made by sealing and folding a laminated sheet packaging material. The packaging material has a multilayer structure comprising a paperboard and/or paper substrate layer covered on both sides with a layer of heat-seal plastic material, for example a polyethylene layer. In the case of aseptic packages for long-storage products, the packaging material also comprises a layer of oxygen-barrier material (for example aluminium foil) superimposed on a layer of heat-seal plastic material, which is then covered in turn by a further layer of heat-seal plastic material forming the inner surface of the package eventually contacting the food product.
Some known composite materials each include:
-a body having a given opening and formed from a sheet of composite packaging material having a multilayer structure; and
-an opening device connected to the body and surrounding the designated opening and configured to seal the designated opening, the opening device being controllable to an open configuration so as to release the designated opening.
A typical opening device comprises: a base frame connecting the opening device to the main body and surrounding the designated opening; a collar extending from the base frame, the collar having an outlet; and a cover for selectively closing and opening the outlet.
It is also known that such composite packages are formed in automatic packaging machines from respective sheets of composite packaging material, which may be provided individually or in the form of a series of rolls of elementary units.
While the known composite packaging works satisfactorily, it is still desirable in the industry to provide improved sheets of composite packaging material for use in forming composite packages.
Another desire in the industry is to provide an improved method for forming a sheet of composite packaging material for forming a composite package.
In addition, it would be desirable to provide an improved composite package for pourable products.
It is also desirable to provide an improved method for forming a composite package for pourable products.
Disclosure of Invention
It is therefore an object of the present invention to provide an improved sheet of composite packaging material for forming composite packages filled with pourable products, in particular with pourable food products, in a straightforward and low-cost manner.
It is a further object of the present invention to provide a method for forming a sheet of composite packaging material for forming a composite package for a pourable product, particularly a pourable food product, in a straightforward and low-cost manner.
It is a further object of the present invention to provide a composite package for pourable products, especially pourable food products, in a straightforward and low-cost manner.
It is a further object of the present invention to provide a method for forming a composite package for pourable products, especially pourable food products, in a straightforward and low-cost manner.
According to the present invention, a sheet of composite packaging material according to independent claim 1 is provided.
Further advantageous embodiments of the sheet of composite packaging material are specified in the claims depending directly or indirectly on claim 1.
According to the present invention there is also provided a method for forming a sheet of composite packaging material according to independent claim 7.
Further advantageous embodiments of the method for forming a sheet of composite packaging material are specified in the claims depending directly or indirectly on claim 7.
According to the present invention there is also provided a composite package according to independent claim 9.
Further advantageous embodiments of the composite package are specified in the claims depending directly or indirectly from claim 9.
According to the present invention, there is also provided a method for forming a composite package according to independent claim 15.
Drawings
Three non-limiting embodiments of the invention are illustrated below in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic perspective view of a composite package according to a first embodiment of the invention, with some parts removed for clarity;
FIG. 2 is an enlarged perspective view of the opening device in the composite package of FIG. 1 with some components removed for clarity;
FIG. 3 is a top view of a sheet of packaging material used to form the composite package according to FIG. 1, with some parts removed for clarity;
FIG. 4 is a schematic perspective view of a composite package according to a second embodiment of the invention, with some parts removed for clarity;
FIG. 5 is an enlarged perspective view of the opening device in the composite package of FIG. 4 with some components removed for clarity;
FIG. 6 is a top view of a sheet of packaging material used to form the composite package according to FIG. 4, with some parts removed for clarity;
FIG. 7 is a schematic perspective view of a composite package according to a third embodiment of the invention, with some parts removed for clarity;
FIG. 8 is an enlarged perspective view of the opening device in the composite package of FIG. 7 with some components removed for clarity; and
fig. 9 is a top view of a sheet of packaging material used to form a composite package according to fig. 7, with some parts removed for clarity.
Detailed Description
Numeral 1 generally indicates a first embodiment of a composite package for pourable products (especially pourable food products, even more especially liquid food products), comprising:
a- (composite) body 2 (in particular a sealed (composite) body 2) filled with a pourable product (in particular a pourable food product, even more particularly a liquid food product), and having a designated opening configured to allow the pourable product to flow out of the body 2; and
an opening device 3 (in particular a plastic opening device 3) connected to the body 2 in such a way as to enclose the intended opening and configured to seal the intended opening, in particular before the first use of the package 1.
In particular, the package 1 may be made of a sheet of composite packaging material 4, in particular a sheet of composite packaging material having a multi-layer structure, as disclosed for example in fig. 3.
With particular reference to fig. 1, the package 1 (in particular the body 2) may extend along a longitudinal axis a, a first transversal axis B and a second transversal axis C. In particular, the extension of the package 2 along the longitudinal axis a may be greater than the extension of the package 2 along the first and second lateral axes B, C.
Preferably, the package 1 (in particular the body 2) may be parallelepiped-shaped. Alternatively, the package 1 (in particular the body 2) may have a cylindrical shape or any other shape.
In more detail, the body 2 may comprise a plurality of walls, in particular a first wall 5, one or more side walls 6 (in the specific case shown as four) and at least one second wall 7 (in the specific case shown as one).
More specifically, the first wall 5 may be transverse (in particular perpendicular) to the longitudinal axis a, and the body 2 may extend along the longitudinal axis a from the first wall 5. Preferably, the first wall 5 may define a support surface of the package 1 (in particular of the body 2) designed to be in contact with a support (for example a shelf), in particular in use (for example at point of sale display or at storage). In particular, the first wall 5 defines a bottom wall of the package 1 when arranged on a support.
In addition, during normal use of the package 1, the first wall 5 may define a bottom wall of the package 1.
Furthermore, the side wall 6 may be (fixedly) connected to the first wall 5, in particular extending (substantially) parallel to the longitudinal axis a from the first wall 5. In particular, the side walls 6 (substantially) define an extension of the package 1 along the longitudinal axis a.
In addition, the second wall 7 may be positioned opposite the first wall 5 and may be (fixedly) connected to (at least some of) the side walls 6. In particular, the second wall 7 may also be transverse to the longitudinal axis a.
In particular, the side wall 6 may be interposed between the first wall 5 and the second wall 7.
In particular, the second wall 7 may define a top wall of the body 2 when arranged on a support and/or during normal use of the package 1.
According to some non-limiting embodiments, the first wall 5 and the second wall 7 may be parallel to each other.
According to an alternative non-limiting embodiment, not shown, the first wall portion 5 and the second wall portion 7 may be inclined with respect to each other.
According to a further alternative embodiment, not shown, the second wall 7 may have two portions transverse to each other (i.e. so as to form a roof construction).
According to some non-limiting embodiments, the second wall 7 may carry and/or comprise a designated opening.
Furthermore, the body 2 may comprise a plurality of edges, in particular:
a plurality of longitudinal edges 8 (in this particular case four longitudinal edges are shown), each longitudinal edge being arranged and/or formed between two adjacent side walls 6;
a plurality of first transverse edges 9 (in this particular case four first transverse edges are shown), each first transverse edge being arranged and/or formed between one respective side wall 6 and first wall 5;
and
a plurality of second transverse edges 10 (in this particular case four second transverse edges are shown), each second transverse edge being arranged and/or formed between one respective side wall 6 and second wall 7.
In particular, the first and second transverse edges 9, 10 may be transverse to the longitudinal edge 8, in particular perpendicular to the longitudinal edge 8.
In more detail, the first lateral edge 9 may define a bottom lateral edge of the main body 2, and the second lateral edge 10 may define a top lateral edge of the main body 2.
Furthermore, the longitudinal edge 8 may be (substantially) parallel to the longitudinal axis a.
Furthermore, the body 2 may comprise an inner space 11 for the pourable product. In particular, the first wall 5, the side wall 6 and the second wall 7 may define an interior space 11.
In addition, the designated opening may be configured to allow pouring of the pourable product from the body 2, in particular from the interior space 11.
Furthermore, the package 1, in particular the body 2, may comprise an inner surface 12 facing the inner space 11 and/or contacting the pourable product, and in particular an outer surface 13 opposite to the inner surface 12.
With particular reference to fig. 1 to 3, opening device 3 is configured to close and seal a designated opening, in particular before first use of package 1, and can thus be controlled to an open configuration in which opening device 3 releases at least a portion of the designated opening so as to allow pouring of a pourable product from package 1, in particular body 2.
In addition, the opening device 3 may also be controlled to a closed configuration in which the opening device 3 closes the designated opening.
Furthermore, the opening device 3 is controlled to a closed configuration and configured to seal and close a designated opening before the package 1 is used for the first time, and after the opening device 3 is controlled to the open configuration for the first time and when the opening device 3 is controlled back to the closed configuration, the opening device 3 is adjusted to close the designated opening.
Referring in particular to fig. 1 to 3, the opening device 3 comprises at least a base frame 15 for coupling the opening device 3 to the body 2.
In addition, the base frame 15 may be disposed around the designated opening. In particular, the base frame 15 may comprise a channel, in particular a channel aligned with at least a portion of the designated opening.
Furthermore, the opening device 3 may comprise a collar 17 extending from the base frame 15 and a cover 18 coupled and/or coupleable to the collar 17.
In more detail, collar 17 may comprise an outlet opening (in particular an outlet opening aligned with the channel and the designated opening) configured to allow the pourable product to flow out, and a lid 18 configured to selectively close and open the outlet opening.
In more detail, prior to first use, the cover 18 may be in a closed position in which the cover 18 closes and seals the outlet opening. Additionally, the cover 18 may be moved to an open position in which the cover 18 opens the outlet opening. Further, once the cover 18 is moved to the open position for the first time, the cover 18 is repeatedly movable between the open position and the closed position, but when in the closed position the cover 18 is configured to close the outlet opening.
Specifically, the opening device 3 is controlled to an open configuration and a closed configuration, with the cover 18 in an open position and a closed position.
In more detail, the cover 18 can firmly engage the edge of the collar 17, which defines the outlet opening, before the cover 18 is controlled for the first time from the closed position to the open position.
In addition, the opening device 3 may comprise a tethering element 19 tethering the cover 18 to the collar 17 and/or the base frame 15 (in this particular case shown as collar 17).
Furthermore, the opening device 3 may comprise a holding element 20, which holding element 20 is configured to hold the cover 18 in the open position. In particular, the retaining element 20 may be configured to interact with the tethering element 19 in order to retain the lid 18 in the open position.
In particular, the retaining element 20 is (integrally) connected to the base frame 15 and extends from the base frame 15.
With particular reference to fig. 3, the package 1 is formed from a sheet 21 of packaging material, the sheet 21 of packaging material comprising:
a- (composite) packaging material sheet base 22 comprising a multi-layer packaging material having a designated opening; and
opening devices 3 applied on the packaging material web substrate 22 and surrounding the designated opening.
It should be noted that the packaging material sheet base 22 comprises a designated opening and that the designated opening of the body 2 comes from the packaging material sheet base 22 once the package 1 is formed with the packaging material sheet 21.
It should also be noted that the body 2 is obtained by folding and sealing the packaging material sheet base 22, and that since the opening device 3 is connected to the packaging material sheet base 22 (as part of the packaging material sheet 21), the opening device 3 is also coupled to the body 2 after the package 1 is integrally formed.
Further, the packaging material sheet base 22 may include a first face and a second face 24 opposite the first face. In particular, once package 1 is formed from sheet 21 of packaging material, first face defines outer surface 13 and second face 24 defines inner surface 12.
Even more in detail, the packaging material sheet base 22 may comprise at least one layer of fibrous material (such as a paper or cardboard layer) and at least two layers of heat-seal plastic material (such as a polyethylene layer) interposed between each other. One of the two layers of heat-sealable plastic material defines a first face and the other layer defines a second face 24.
In addition, the packaging material sheet base 22 may further include a gas barrier and light barrier material layer (e.g., an aluminum foil layer or an ethylene vinyl alcohol (EVOH) film layer), particularly a gas barrier and light barrier material layer disposed between one of the heat seal plastic material layers and the fiber material layer. Preferably, the packaging material may further comprise a further layer of heat-sealable plastic material interposed between the layer of gas-barrier and light-barrier material and the layer of fibrous material.
With particular reference to fig. 3, the sheet of packaging material 21 (particularly the sheet of packaging material base 22) includes a plurality of crease lines 30, the plurality of crease lines 30 defining and/or defining a plurality of panels 31 of the sheet of packaging material 21 (particularly the sheet of packaging material base 22).
More specifically, sheet of packaging material 21 (in particular sheet of packaging material base 22) is folded along crease line 30 in order to obtain package 1.
In particular, at least some of the crease lines 30 define and/or correspond to the longitudinal edges 8, at least some of the crease lines 30 define and/or correspond to the first transverse edges 9, and at least some of the crease lines 30 define and/or correspond to the second transverse edges 10.
In more detail, each panel 31 may at least partially define a corresponding wall (first wall 5 or one side wall 6 or second wall 7) of the body 2.
Further, at least one panel 31 may include a designated opening. Specifically, according to the specific embodiment shown in fig. 3, exactly one panel 31 includes the specified opening.
Preferably, the panel 31 comprising the designated opening may at least partially form the second wall 7 after the package 1 is formed.
In more detail, the panel 31 with the specified opening may be sealed by another panel 31 during the formation of the package 1, so as to form the second wall 7.
Further, the panel 31 having the designated opening may be defined by a plurality of crease lines 30 and/or may have a rectangular shape.
With particular reference to fig. 2 and 3, the base 15 may include at least a first flange 34, the first flange 34 being connected to (particularly fused to, even more particularly molded to) the second face 24.
In more detail, the first flange 34 may have at least a peripheral portion 35, in particular an annular shape.
Even more in detail, the first flange 34 (in particular the peripheral portion 35) may comprise a rectilinear peripheral portion 36, the rectilinear peripheral portion 36 being adjacent and parallel to a respective crease line 30, the respective crease line 30 defining a reference crease line 37. In particular, the reference crease line 37 also has a rectilinear shape.
In addition, the first flange 34 (particularly the peripheral portion 35) may include an auxiliary peripheral portion 38, the auxiliary peripheral portion 38 being spaced apart from the linear peripheral portion 36 and facing away from the reference crease line 37. In the particular example shown, the auxiliary peripheral portion 38 has a rectilinear shape, in particular (substantially) parallel to the rectilinear peripheral portion 36. Alternatively, the auxiliary peripheral portion 38 may have a shape different from that of the straight peripheral portion.
Further, the first flange 34 (particularly the outer peripheral portion 35) may include other auxiliary outer peripheral portions 39 connecting the straight outer peripheral portion 36 and the auxiliary outer peripheral portion 38 to each other. In particular, the auxiliary peripheral portion 39, the linear peripheral portion 36 and the auxiliary peripheral portion 38 may define an annular shape.
In more detail, the first flange 34 may include a channel.
Further, the first flange 34 may include an inner portion 40 connected to the outer peripheral portion 35. Specifically, the outer peripheral portion 35 may be disposed radially outside, and the inner portion 40 may be disposed radially inside.
Further, the outer peripheral portion 35 may extend in a first plane, and the inner portion 40 may extend in a second plane displaced from the first plane. In particular, the inner portion 40 (even more particularly the second plane) may be flush with the first face.
Furthermore, the first plane may be flush with the second face 24.
Further, collar 17 is integrally formed with first flange 34 and extends from first flange 34.
According to some possible non-limiting embodiments, the distance between the rectilinear peripheral portion 34 and the reference crease line 37 may be equal to or less than 2.0mm, in particular equal to or less than 1.0mm, even more in particular equal to or less than 0.9mm. Specifically, the distance between the straight peripheral portion 34 and the reference crease line 37 is determined in conjunction with the direction normal to the crease line 37 and the straight peripheral portion 34.
According to some possible embodiments, the rectilinear peripheral portion 36 may be in contact with a reference crease line 37. In particular, the linear peripheral portion 36 may abut the reference crease line 37, or may extend into the reference crease line 37 (i.e., the linear peripheral portion 36 may overlap a portion of the reference crease line 37).
Once package 1 is formed from sheet 21 of packaging material, first flange 34 may be connected to (particularly fused to) inner surface 12 (i.e., first flange 34 is disposed within interior space 11). In addition, the straight peripheral portion 36 may be adjacent to and parallel to the reference crease line 37. In particular, the reference crease lines 37 correspond to and/or define a respective second transverse edge 10.
Furthermore, the straight peripheral portion 36 may be adjacent to one respective side wall 6. In particular, the distance between the rectilinear peripheral portion 36 and the respective side wall 6 may be equal to or less than 2.0mm, in particular equal to or less than 1.0mm, even more in particular equal to or less than 0.9mm.
According to some possible embodiments, the rectilinear peripheral portion 36 may abut the respective side wall 6.
With particular reference to fig. 2, the retaining element 20 is (integrally) connected to the first flange 15 (in particular the peripheral portion 35) and extends from the first flange 15 (in particular the peripheral portion 35).
According to the particular embodiment of fig. 1-3, the peripheral portion 35 may be disposed within the interior space 11.
Furthermore, forming a respective sheet 21 of packaging material comprises at least the following steps:
-providing a respective packaging material sheet base 22 having a designated opening;
-arranging a mould around the designated opening; and
feeding molten polymer into the mould and moulding the respective opening devices 3 onto the packaging material web substrate 21 and surrounding the designated openings.
In particular, the mould has a cavity corresponding to the shape of the opening device 3.
According to some possible embodiments, in particular in order to increase the accuracy of positioning of opening devices 3, forming sheet 21 of packaging material further comprises the steps of:
reading the indicia applied to the packaging material web substrate 22; and
-aligning the mould around the designated opening according to the position of the mark.
In particular, the label may be a magnetic label or a different kind of label. Preferably, the markers may be magnetic markers to allow for a precise positioning of the mould and thus of the opening device 3.
In more detail, the packaging material sheet base 22 may be provided in the form of a roll. In particular, the web comprises a plurality of elementary units, each elementary unit corresponding to a respective sheet of packaging material base 22. Thereby, during the providing step, the web of packaging material sheet base 22 is advanced (in particular intermittently) to a moulding station, where the opening devices 3 are moulded onto the respective packaging material sheet base 22. In this way, a web of packaging material sheet 21 is obtained.
Further, forming the package 1 comprises the steps of:
-providing a sheet of packaging material 21;
folding the sheet of packaging material 21 according to crease lines 30 to obtain packages 1;
sealing (in particular in the longitudinal and transverse directions) the package 1; and
filling the package 1 with a pourable product.
In more detail, the sheet of packaging material 21 may be provided in the form of a web of packaging material 21, and the web of packaging material 21 may be (continuously) advanced to a tube forming station, where the web of packaging material 21 may be formed into a tube.
Furthermore, during the sealing step, the tube may be sealed longitudinally and transversely.
In addition, during the filling step, the tube may be filled with a pourable product.
Forming the package 1 may further comprise a forming step during which the tube is formed, and a step of cutting the tube transversely in order to obtain individual packages 1.
Referring to fig. 4, the numeral 1' indicates an alternative embodiment of a package according to the invention; since the package 1' is similar to the package 1, the following description is limited to only the differences between them and uses the same reference numerals for the same or corresponding parts where possible.
In particular, the package 1 'differs from the package 1 in that it comprises an opening device 3'.
Also, the package 1 'differs from the package 1 also in that it is formed from a sheet 21' of packaging material (see fig. 6).
Since the sheet of packaging material 21' is similar to the sheet of packaging material 21, the following description is limited to only the differences between them and uses the same reference numerals for the same or corresponding components where possible.
In particular, the sheet of packaging material 21 'also differs from the sheet of packaging material 21 in that the opening device 3' is included.
In more detail and with particular reference to fig. 4 and 5, the opening device 3' differs from the opening device 3 in that the base frame 15 further comprises a second flange 40 spaced apart from the first flange 34 and in particular parallel to the first flange 34.
Preferably, the first flange 34 and the second flange 40 may be connected to each other.
In particular, the second flange 40 is connected (in particular fused to, even more in particular molded to) the first face, or is connected (in particular fused to, even more in particular molded to) to the outer surface 13 after the package 1 is formed.
Furthermore, the first flange 34 and the second flange 40 define respective gaps for inserting a portion of the sheet of packaging material base 22 or a portion of the second wall 7 between each other after the package 1 is formed.
In more detail and with particular reference to fig. 4 and 5, the second flange 40 may comprise a peripheral portion 42, in particular having the same shape as the peripheral portion 35. Alternatively, the shape of peripheral portion 42 may be at least partially different from the shape of peripheral portion 35.
Since the formation of the sheet of packaging material 21' is similar to the formation of the sheet of packaging material 21, we refer to the description provided for the formation of the sheet of packaging material 21.
In addition, since the form package 1' is similar to the form package 1, we refer to the description provided for forming the package 1.
Referring to fig. 7, the numeral 1 "indicates an alternative embodiment of a package according to the invention; since package 1 "is similar to package 1, the following description is limited to only the differences between them and uses the same reference numerals for the same or corresponding components where possible.
In particular, the package 1 "differs from the package 1 in that it comprises opening means 3" and in that the designated opening extends above two respective walls, in particular the second wall 7 and one side wall 6.
Also, the package 1 "differs from the package 1' also in that it is formed from a sheet 21" of packaging material (see fig. 9).
Since the sheet of packaging material 21 "is similar to the sheet of packaging material 21', the following description is limited to the differences between them and uses the same reference numerals for the same or corresponding components where possible.
In particular, the sheet of packaging material 21 "differs from the sheet of packaging material 21' in that it comprises opening devices 3" and a sheet of packaging material base 22".
In more detail, the packaging material sheet base 22″ is different from the packaging material sheet base 22 in that the designated opening includes a first opening portion and a second opening portion.
Furthermore, one panel 31 (in particular the panel defining at least partially the second wall 7) comprises a first opening portion, while the other panel 31 (in particular the panel defining one side wall 6) comprises a second opening portion.
In more detail, one crease line 30 (in particular a crease line transverse to the reference crease line 37, more in particular a crease line perpendicular to the reference crease line 37) is interposed between the panel 31 having the first opening portion and the panel 31 having the second opening portion.
In more detail, crease line 30 interposed between panel 31 with a first opening portion and panel 31 with a second opening portion defines an auxiliary reference crease line 46 transversal (in particular perpendicular) to reference crease line 37. In addition, and with particular reference to fig. 7-9, the opening device 3″ may differ from the opening device 3' in that the first flange 34 may include a first flange portion 47, a second flange portion 48, and a fold line 49 interposed between the first flange portion 47 and the second flange portion 48. In particular, the fold line 49 is configured such that during formation of the package 1 (i.e. during folding of the respective sheet of packaging material 21 "), the first flange 34 is folded along the fold line 49 such that the first flange portion 47 and the second flange portion 48 are arranged transverse to each other, in particular (substantially) perpendicular to each other.
Preferably, fold line 49 may be parallel to auxiliary reference crease line 46. In particular, fold line 49 may be aligned with auxiliary reference crease line 46.
According to some possible non-limiting embodiments, the distance between the auxiliary reference crease line 46 and the fold line 49 may be equal to or less than 2.0mm, in particular equal to or less than 1.0mm, even more in particular equal to or less than 0.5mm.
Further, the first flange portion 47 may be associated with the first opening portion, and the second flange portion 48 may cover and seal the second opening portion.
Additionally, auxiliary reference crease line 46 may include a first portion 50 and a second portion 51 separated from each other.
Advantageously, the fold line 49 may be parallel to the first portion 50 and the second portion 51 and interposed between the first portion 50 and the second portion 51. In particular, fold line 49 may extend between first portion 50 and second portion 51.
Further, the first flange portion 47 may comprise an outer peripheral portion 35, in particular a straight outer peripheral portion 36.
Further, the first flange portion 47 may include a channel, and the collar 17 may be connected to the first flange portion 47 and extend from the first flange portion 47. Likewise, the retaining element 20 may also extend from the first flange portion 47.
It should be noted that once package 1 "is formed from sheet 21" of packaging material, one respective wall of body 2 comprises a first opening portion and the other wall comprises a second opening portion, in particular the two walls being transverse to each other. In more detail, the second wall 7 comprises a first opening portion and one transverse wall 6 comprises a second opening portion.
Since the formation of the sheet of packaging material 21 "is similar to the formation of the sheet of packaging material 21, we refer to the description provided for the formation of the sheet of packaging material 21.
In addition, since forming package 1 "is similar to forming package 1, we refer to the description provided for forming package 1.
The advantages of the sheet of packaging material 21,21',21 "and/or the package 1,1',1" and/or the method for forming the sheet of packaging material 21,21',21 "and/or the method for forming the package 1,1',1" according to the invention will become clear from the foregoing description.
In particular, by forming the package 1,1',1 "in dependence of the sheet of packaging material 21,21',21", the transportation and reclosing properties of the package 1,1',1 "may be improved. In particular, by having the rectilinear peripheral portion 35 adjacent and parallel to the reference crease line 37 (the respective second transversal edge 10), the load acting on the respective opening devices 3,3',3″ can be transferred to one or more side walls 6. This again allows to avoid any risk that the respective body 2 may be deformed.
Another advantage is that providing the first flange 34 with the first flange portion 47 and the second flange portion 48 further enhances the effect of the straight peripheral portion 35 being adjacent and parallel to the reference crease line 37 (the respective second transverse edge 10).
An additional advantage is that having the straight peripheral portion 35 adjacent and parallel to the reference crease line 37 improves the folding of the sheet of packaging material 21,21',21 "into the respective package 1,1', 1".
It is clear that variations may be made to the sheet of packaging material 21,21',21 "and/or the package 1,1',1" and/or the method for forming the sheet of packaging material 21,21',21 "and/or the method for forming the package 1,1',1" as described herein without departing from the scope of protection as defined in the accompanying claims.
According to some possible embodiments, not shown, the opening device 3″ may not comprise the second flange 41.

Claims (15)

1. A sheet of composite packaging material (21, 21',21 ") for forming a composite package (1, 1', 1") filled with a pourable product, said sheet of composite packaging material comprising at least:
a sheet of packaging material base (22, 22') comprising a multi-layer packaging material having a designated opening; and
opening means (3, 3 ') applied on said packaging material web substrate (22, 22') and surrounding said designated opening and designed to seal said designated opening and to be controllable to an open position in order to release at least a portion of said designated opening;
wherein the packaging material sheet base (22, 22') comprises at least a first face and a second face (24), the second face being opposite to the first face;
wherein the second face (24) is designed to define an inner surface (12) of the composite package (1, 1',1 ") to be formed from the sheet of composite packaging material (21, 21', 21");
wherein the sheet of packaging material base (22, 22 ") comprises a plurality of crease lines (30) defining a plurality of panels (31);
wherein the opening device (3, 3',3 ") comprises a base frame (15), the base frame (15) being adapted to couple the opening device (3, 3', 3") to the packaging material sheet base (22, 22 ") and to enclose the designated opening;
wherein the base frame (15) comprises at least a first flange (34), the first flange (34) being connected to the second face (24) and having a rectilinear peripheral portion (36);
wherein the linear peripheral portion (36) is adjacent and parallel to a respective crease line (30), the respective crease line (30) defining a reference crease line (37).
2. The sheet of composite packaging material according to claim 1, wherein the reference crease line (37) defines at least one panel (31) comprising at least a portion of the designated opening.
3. The sheet of composite packaging material according to claim 1 or 2, wherein the linear peripheral portion (36) is in contact with the reference crease line (37).
4. A sheet of composite packaging material according to claim 3, wherein the rectilinear peripheral portion (36) abuts the reference crease line (37).
5. A sheet of composite packaging material according to claim 3, wherein the straight peripheral portion (36) extends into the reference crease line (37).
6. The sheet of composite packaging material of any one of the preceding claims, wherein the designated opening comprises a first opening portion and a second opening portion;
wherein a first panel (31) comprises the first opening portion and a second panel (31) comprises the second opening portion;
wherein the first flange (34) comprises a first flange portion (47), a second flange portion (48) and a fold line (49) connecting the first flange portion (47) and the second flange portion (48) to each other;
wherein the second flange portion (48) is configured to cover and seal the second opening portion;
wherein a crease line (30) transversal to said reference crease line (37) is interposed between said first panel (31) and said second panel (31), is in contact with said first panel (31) and with said second panel (31), and defines an auxiliary reference crease line (46);
wherein the fold line (49) is parallel to the auxiliary reference crease line (46).
7. A method for forming a sheet (21, 21',21 ") of composite packaging material according to any of the preceding claims, comprising at least the steps of:
providing a sheet of packaging material having a designated opening (22, 22 ");
disposing a mold around the designated opening; and
molten polymer is fed into the mould and the opening device (3, 3',3 ") is moulded onto the packaging material sheet base (22, 22") and surrounds the designated opening.
8. The method of claim 7, further comprising the step of:
-reading indicia applied on said packaging material web substrate (22, 22 "); and
-aligning the mould around the designated opening according to the position of the marking.
9. A composite package (1, 1',1 ") for a pourable product, comprising:
a main body (2) formed of a composite packaging material, having a designated opening and an inner space (11); and
an opening device (3, 3') coupled to the body (2) and surrounding the designated opening and configured to seal the designated opening and at least controllable to an open position so as to release at least a portion of the designated opening;
wherein the body (2) comprises a plurality of walls (5, 6, 7), each wall being delimited by a plurality of respective crease lines (30) of the packaging material;
wherein the body (2) comprises an inner surface (12) facing the inner space (11) and an outer surface (13) opposite to the inner surface (12);
wherein the opening device (3, 3',3 ") comprises a base frame (15), the base frame (15) coupling the opening device (3, 3', 3") to the body (2) and surrounding the designated opening;
wherein the base frame (15) comprises at least a first flange (34), the first flange (34) being connected to the inner surface and having a rectilinear peripheral portion (36);
wherein the linear peripheral portion (36) is adjacent and parallel to a respective crease line (30), the respective crease line (30) defining a reference crease line (37).
10. The composite package according to claim 9, wherein the reference crease line (37) is interposed between a first wall (7) of the package (1, 1',1 ") and a second wall (6) of the package, the first and second walls being transversal to each other.
11. The composite package according to claim 9 or 10, wherein the linear outer peripheral portion (36) is in contact with the reference crease line (37).
12. The composite package according to claim 11, wherein the straight peripheral portion (36) adjoins the reference crease line (37) or extends into the reference crease line (37).
13. The composite package of any of claims 9-12, wherein the designated opening comprises a first opening portion and a second opening portion;
wherein the first wall (7) comprises said first opening portion and the second wall (6) comprises said second opening portion;
wherein the first flange (34) comprises a first flange portion (47), a second flange portion (48) and a fold line (49) connecting the first flange portion (47) and the second flange portion (48) to each other;
wherein the second flange portion (48) is configured to cover and seal the second opening portion;
wherein a crease line (30) transversal to said reference crease line (37) is interposed between said first panel (31) and said second panel (31), is in contact with said first panel (31) and with said second panel (31), and defines an auxiliary reference crease line (46);
wherein the fold line (49) is parallel to the auxiliary reference crease line (46).
14. A composite package formed from a sheet (21, 21',21 ") of composite packaging material according to any one of claims 1 to 6.
15. A method for forming a composite package according to any one of claims 9 to 14, comprising at least the steps of:
-providing a sheet (21, 21',21 ") of composite packaging material according to any one of claims 1 to 6;
folding the sheet of composite packaging material according to the crease lines to obtain the composite package (1, 1',1 ");
sealing the composite package (1, 1',1 "); and
filling the composite package (1, 1') with a pourable product.
CN202280023222.8A 2021-05-18 2022-05-12 Composite packaging material sheet, method of forming composite packaging material sheet, composite package, and method of forming composite package Pending CN117083227A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP21174384.4 2021-05-18
EP21174384 2021-05-18
PCT/EP2022/062875 WO2022243143A1 (en) 2021-05-18 2022-05-12 Composite packaging material sheet, method for forming a composite packaging material sheet, composite package and method for forming a composite package

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CN117083227A true CN117083227A (en) 2023-11-17

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Application Number Title Priority Date Filing Date
CN202280023222.8A Pending CN117083227A (en) 2021-05-18 2022-05-12 Composite packaging material sheet, method of forming composite packaging material sheet, composite package, and method of forming composite package

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Country Link
US (1) US20240158128A1 (en)
EP (1) EP4091953A1 (en)
JP (1) JP2024517374A (en)
CN (1) CN117083227A (en)
BR (1) BR112023018769A2 (en)
MX (1) MX2023010886A (en)
WO (1) WO2022243143A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0340765Y2 (en) * 1985-05-27 1991-08-27
JPH0235606Y2 (en) * 1986-01-21 1990-09-27
JPH0551032A (en) * 1991-08-15 1993-03-02 Dainippon Printing Co Ltd Paper container
SE521912C2 (en) * 2000-11-28 2003-12-16 Tetra Laval Holdings & Finance Method for arranging opening devices directly on a packaging material web for pourable products and a package obtained thereby.

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WO2022243143A1 (en) 2022-11-24
US20240158128A1 (en) 2024-05-16
BR112023018769A2 (en) 2023-12-05
JP2024517374A (en) 2024-04-22
EP4091953A1 (en) 2022-11-23
MX2023010886A (en) 2023-09-27

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