EP3865414A1 - Carton à pignon comprenant un motif gaufré - Google Patents

Carton à pignon comprenant un motif gaufré Download PDF

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Publication number
EP3865414A1
EP3865414A1 EP21154584.3A EP21154584A EP3865414A1 EP 3865414 A1 EP3865414 A1 EP 3865414A1 EP 21154584 A EP21154584 A EP 21154584A EP 3865414 A1 EP3865414 A1 EP 3865414A1
Authority
EP
European Patent Office
Prior art keywords
carton
embossed pattern
carton blank
approximately
sealing
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.)
Withdrawn
Application number
EP21154584.3A
Other languages
German (de)
English (en)
Inventor
Peter Kortsmit
Carlos Vargas
Lyndon Hillman
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 EP3865414A1 publication Critical patent/EP3865414A1/fr
Withdrawn legal-status Critical Current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
    • B65D5/02—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
    • B65D5/068—Gable-top containers with supplemental means facilitating the opening, e.g. tear lines, tear tabs
    • 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
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/701—Tearable flaps defined by score-lines or incisions provided in the closure flaps of a tubular container made of a single blank
    • 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
    • B65D5/40—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 specially constructed to contain liquids
    • 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
    • B65D5/42—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

Definitions

  • Paperboard cartons are commonly known in the art for containing and distributing milk and juice.
  • paperboard cartons are present in the form of a laminate and formed from flat blanks that have a central layer of paperboard and outer layers of polyethylene.
  • a gas barrier layer may be included in the laminate.
  • a common form of these cartons is referred to as gable-top carton.
  • the current process to make these types of cartons involves printing on the carton of the pre-laminated paperboard sheets, creasing the sheets in several locations, applying an adhesive to an area where a pouring spout of the carton will be later located, and cutting individual carton blanks from the sheets. These carton blanks are then folded to form four side walls and a flat bottom.
  • the top of the carton is folded into a closing arrangement which resembles a roof.
  • a sealing fin projects upwardly.
  • the laminate that forms the sealing fin is heated to soften the polyethylene.
  • opposing sections of the laminate then are pressed together along the sealing fin and cooled, the polyethylene layers form a secure bond.
  • the sides of the roof are pulled apart to separate each half of the sealing fin between the end of the roof and the center of the ridge of the roof.
  • the other half of the sealing fin not used as a pouring spout remains sealed.
  • the second step in the opening process requires unsealing the inside layers of the sealing fin, and this is done by swinging the sides of the roof further away from each other past the middle of the roof ridge, and then to urge the two sides toward each other with sufficient force to break the seal between the inside layers of the seal fin, which then swing outwardly to form a pouring spout.
  • the tape tends to move during the sealing operation, which prevents a hermetic seal and in some cases causes leakage of the contents of the carton to occur.
  • Another problem with utilizing the tape is that in the sealing operation, the tape tends to wrinkle or become uneven. This may lead to an ineffective seal, which permits O 2 permeation or product penetration.
  • the cartons must remain sealed until opened by the customer. For example, if even a minute channel through the sealing fin results from the use of the tape, air may enter the carton and prematurely spoil the contents. Also, in transporting and handling the carton, the contents may leak, particularly along the crease lines at the center of the sealing fin. As a practical matter, the integrity of the seal is essential to providing a commercially-viable carton opening arrangement.
  • the tape strengthening the sealing fin is spaced apart with its upper edge from the free edge of the panel by preferably 0.38 cm.
  • the space is more than 0.76 cm, an excessively strong sealing area may result.
  • This strong seal requires an excessive opening force to break the seal.
  • the US patent advises against extruding adhesive into an area above the panels of the pouring spout because excessive opening force would be required to break the seal.
  • the tape has a coating of adhesive on one side and is bonded to the surface of the carton blank by the adhesive.
  • the use of an adhesive at the location of the pouring spout obviously adds to the thickness of the sealing fin and requires modification of conventional carton sealing equipment to accommodate the presence of the tape.
  • Another problem is that it is intended that the adhesive at least partially extrudes outward from the tape during the sealing operation. Due to the plastic nature of the adhesive, it may not provide a stable support for the tape, and may lead to displacement of the tape, wrinkling and distortion during the sealing operation.
  • a gable-top carton 2 has a front wall 4, a back wall 6, and opposite side walls 8 and 10.
  • the carton 2 has a closed bottom (not shown) which is formed in a conventional manner.
  • European patent EP0546383 incorporated by reference herein.
  • the front and back walls are folded along a crease line 12 which extends across the front wall and back wall and the two side walls.
  • the various crease lines which are formed in the carton blank are shown in FIG. 2 .
  • Crease lines 14 are provided in the carton blank to form each of the corners of the carton 2.
  • a sealing flap 16 is folded and sealed along the side wall 4 to form the carton as shown in FIG. 1 .
  • the carton blank as shown in FIG. 2 , has main roof panels 18 and 20 which are extensions of the front and back walls 4 and 6.
  • the carton blank has triangular end panels 22 and 24 and triangular back-folding panels 26.
  • a crease line 28 in the carton blank is parallel to the crease line 12 and defines the sealing fin along the ridge of the sealed gable-top carton.
  • the carton blank On the opposite side of the crease line 28 from the triangular back-fold panels 26, the carton blank has rectangular fin panels 30 adjacent the end panel 24 and rectangular fin panels 32 adjacent the end panel 22.
  • a vertical crease line 34 is provided between the rectangular panels 30.
  • a similar vertical crease line 36 is provided between the rectangular panels 32 at the apex of the triangular end panel 22.
  • the main roof panels 18 and 20 include rectangular portions 40 which extend above the edges 42 of the fin panels 30 and 32, as shown in FIG. 2 .
  • a strip of tape 38 is applied over the fin panels 32 and over a portion of the fold-back panels 26.
  • the tape 38 has an adhesive layer which bonds the tape to the polyethylene coating on the carton panels.
  • the tape is formed of a material that is weakly bonded by heat sealing to the polyethylene coating of the carton blank, or is incapable of forming a bond with the polyethylene, so that the exposed side of the tape does not stick to the adjacent surfaces of the carton when the carton is being opened.
  • the tape material is resistant to deformation under the heating conditions prevailing during the sealing process and be sufficiently stiff to facilitate the carton opening process.
  • the adhesive that bonds the tape 38 to the carton blank has the ability to form a strong bond between the tape and the polyethylene surface of the carton blank, so that upon opening the carton, the tape remains bonded to the fin panels 32.
  • the tape may be formed of unoriented polypropylene, metallic foil, polyester film or polycarbonate film. Suitable adhesives for bonding the tape to the polyethylene of the carton blank include ethylene vinyl acetate (EVA) copolymer, medium density polyethylene, and pressure-sensitive adhesive (PSA).
  • EVA ethylene vinyl acetate
  • PSA pressure-sensitive adhesive
  • the tape 38 may also be formed of unoriented polypropylene, such as that used as a film backing in a pressure-sensitive adhesive tape marketed under the trademark "Y-8450" by Minnesota Mining and Manufacturing Company.
  • the spacing between the edge of the tape 38 and the edge 42 of the fin panels 32 is important in achieving a proper seal. If the edge of the tape 38 is too close to the edge 42, the tape will interfere with the flow of the adhesive over the edge 42. If the tape 38 is spaced too far from the edge 42, the adhesive will not fill the area along the edge 42. It has been found that the minimum gap between the edge of the tape and the edge 42 for an effective seal is 0.50 mm and the maximum gap is 1.5 mm.
  • FIGS. 3A-4 which relate to the prior art solution referred to earlier in the description, certain embodiments of a gable-top carton are shown. Such designs are disclosed in U.S patent 4,744,467 , incorporated by reference herein.
  • the carton C has a tubular main body 120, being of a configuration which is square or rectangular in cross-section, a bottom 121 and a gable-shaped cover 122.
  • the gable-shaped cover comprises two inclined surface portions 124 and 125 and a double-layer cardboard strip comprising one layer 129 and an oppositely disposed layer 126.
  • the tubular main body 120 is closed along the sealing seam 138.
  • the laid-over gable surfaces 131 and 132 which are disposed approximately perpendicular to the wall surface portions 124 and 125 are laterally connected to triangular panels 134, 135 and 136, 137 respectively, while upwardly towards the opening side, there are panels 130, 141 and 142 for forming the ridge seam.
  • the entire carton comprises paper or cardboard which is coated with thermoplastic material on both sides so that, when the sealing tools are of a suitable configuration, it is possible for the gable-shaped cover of the carton to be completely fluid-tightly closed off.
  • the carton After the sealing operation which is slighter or weaker in extent over those regions 139, 140, 148 and 149, in such a way that those areas have a lower level of adhesive force and are consequently peelable, the carton can be put into the condition shown in FIG. 3B by a first step.
  • FIG. 5 Yet another prior art embodiment is shown in FIG. 5 . Illustrated therein is a prefabricated cardboard material, that is to say, a broken-away blank portion as shown in FIG. 4 , but with minor alterations so that the carton produced from the blank shown in FIG. 5 represents a slightly modified construction in comparison with the prior art carton which is produced from the blank shown in FIG. 4 .
  • the same areas and portions in FIG. 5 as those appearing in FIG. 4 are denoted by the same reference numerals, but they are additionally provided with a prime.
  • the sealing areas 139' and 140' have been reduced in size, for example by cutting away a center portion 150 which in FIG. 5 is represented by inclined hatching and with boundary lines extending in a triangular configuration.
  • a center portion 150 which in FIG. 5 is represented by inclined hatching and with boundary lines extending in a triangular configuration.
  • the configuration of such a cut-away portion 150 may be different, it is however particularly useful for the cut-away portion to be of a V-shaped configuration, with the lower tip of the "V", which is identified by reference numeral 151 in FIG. 5 , being disposed on a vertical fold line 152 which extends from the point of intersection between the corresponding fold lines 153 and 154 in the upper wall panel portions 131' and 134' of the preformed cardboard material.
  • the V-shaped portion 150 is preformed cardboard material.
  • the V-shaped portion 150 is preferably in the form of an isosceles triangle whose apex 151 is disposed on the fold line 152.
  • the hypotenuse or base may be about 25 mm and a corresponding height of the triangle may be 4 to 5 mm.
  • the two panel portions 124' and 125' which are arranged at the top of the carton may further be provided with fold lines 155 and 156 respectively which are partially arranged within corresponding sealing areas 148' and 149' respectively with a lower level of adhesive force.
  • the extra fold lines 155 and 156 preferably extend vertically upwardly in the view shown in FIG. 5 and represent extensions corresponding to the fold lines 157 and 158 within the panel portions 124' and 125' respectively. That arrangement forms another pouring spout which is more easily formed, when the filled and closed carton C is to be opened and the content thereof is to be poured out.
  • the peel-able sealing surface in the region of the special pattern 146 (for example rhombic depressions arranged at a spacing from each other) can be opened in such a way that the two triangular panel portions 134 and 135 are pulled apart.
  • FIG. 3C shows the condition after the pouring arrangement has been completely opened, specifically wherein the lip 145 of the pouring spout 144, which lip serves as the pouring spout means, has been folded out by releasing the pretreated sealing areas 147 and 149.
  • a carton blank for a gable-top carton comprises a pre-laminated paperboard sheet, a plurality of crease lines; and an embossed pattern printed along a top portion of the carton blank.
  • the top portion can be configured to become a sealing fin on a folded packaging container.
  • the pre-laminated paperboard sheet can further comprise a central layer comprising a paperboard material and an outer layer comprising a polyethylene material.
  • the embossed pattern can comprise a plurality of rows and each row can comprise a plurality of x-shaped marks.
  • the embossed pattern can have two rows. Each x-shaped mark in the plurality of x-shaped marks can have a height of approximately 4 mm.
  • the embossed pattern can comprise a plurality of rows and each row can comprise a plurality of ovals.
  • Each oval of the plurality of ovals can have a height of approximately 2 mm and a width of approximately 45 mm.
  • the carton blank can further comprise a compressed spot that can be positioned approximately in the center of the embossed pattern.
  • the compressed spot can comprise a triangular shape.
  • the triangular shape can have a height of approximately 7 mm, a first dimension of approximately 20 mm, and a second dimension of approximately 18 mm.
  • a packaging container for packaging liquid food comprises a pre-laminated paperboard material, a container body, a top portion, and a sealing fin.
  • the pre-laminated paperboard material can comprise an outer layer that can comprise a polyethylene material.
  • the container body can comprise a closed bottom end.
  • the top portion can extend from the container body opposite the closed bottom end and can form a roof-like configuration.
  • the sealing fin can comprise a front sealing portion on a front side and a back sealing portion on a back side of the sealing fin.
  • the front sealing portion can comprise an embossed pattern and the back sealing portion can comprise the polyethylene material.
  • the packaging container can further comprise a compressed spot that can be positioned approximately in the center of the embossed pattern.
  • the packaging container can further comprise a central layer that can comprise a paperboard material.
  • the embossed pattern can have two rows and each row can comprise a plurality of x-shaped marks.
  • the embossed pattern can have three rows and each row can comprise a plurality of ovals.
  • the packaging container can further comprise a pouring spout. The pouring spout can be formed by opening the front side of the sealing fin along the embossed pattern while the back side of the sealing fin remains sealed.
  • a method for processing a gable-top carton can comprise: printing a plurality of carton blanks on a pre-laminated paperboard sheet, creasing each of the plurality of carton blanks such that each of the plurality of carton blanks can comprise a plurality of crease lines, printing an embossed pattern along a top portion of the plurality of creased carton blanks, and cutting a single carton blank from the plurality of creased carton blanks.
  • the method of the preceding paragraph can also include one or more of the following features.
  • the method can further comprise compressing a compressed spot positioned approximately in the center of the embossed pattern.
  • the compressed spot can comprise a triangular shape.
  • Embodiments of the solution disclosed herein are directed to various techniques for adhering surfaces in a carton, such as replacing the use of an adhesive surface at the top of the gable top carton, with a step of embossing this area to adhere the surfaces together.
  • the benefit of embossing may be twofold.
  • the defined embossed marks e.g., x-shaped marks, circular marks, oval marks
  • Second, an area in the pouring spout can be fully compressed, as shown in FIGS. 6A and 7A , to ensure that little to no fibers remain in the pouring spout after the carton has been opened, which avoids contamination of the product.
  • the method of embossing the carton may involve printing on cartons being in the form of pre-laminated sheets.
  • the pre-laminated sheets can comprise a central layer of paperboard and outer layers of polyethylene.
  • the cartons can be creased such that several crease lines are formed.
  • the crease lines may be configured to be folded such that the top of the carton that is opposite a closed bottom, the top resembles a roof, the side walls are opposite each other, and the front wall is opposite the back wall.
  • the cartons can be embossed along the part of each rectangular section 340, 440 and along the length of the first and second rectangular fin panel 332, 334, 432, 434.
  • the embossed patterns are described further below.
  • each carton blank can comprise a sealing flap that includes a polyethylene material (e.g., low-density polyethylene (LDPE)).
  • LDPE low-density polyethylene
  • the embossed carton blank 300 can comprise front and back walls 304, 306, side walls 310, rectangular fin panels 332, 334, rectangular portions 340, 348, a plurality of crease lines 312, 314, 319, 321, 336, 344, triangular back-folding panels 326, and triangular end panels 322.
  • the plurality of crease lines may include vertical crease lines 336, two diagonal crease lines 319, 321 and a score 344.
  • the front and back walls 304, 306 can be folded along a crease line 312 which extends across the front wall 304 and back wall 306 and the two side walls 310.
  • the crease lines 314 can be configured to form each of the corners of the carton 300.
  • the carton blank can have main roof panels 318, 320 which can be extensions of the front and back walls 304, 306.
  • the main roof panels 318, 320 may each comprise a diagonal crease line 319, 321 and a triangular folding panel 327.
  • these diagonal crease lines 319, 320 can support and guide the carton to fold along the diagonal crease lines 319, 320, which can make it easier for the consumer to open the carton.
  • the carton blank can have triangular end panels 322, 324 and triangular back-folding panels 326.
  • a crease line or score 344 in the carton blank can be parallel to the crease line 312 and can define the sealing fin along the ridge of the sealed gable-top carton.
  • the carton blank can have rectangular fin panels 332, 334 adjacent the end panel 322 At the apex of the triangular end panel 322, a vertical crease line 336 can be provided between the rectangular panels 332, 334. In some embodiments, a similar vertical crease line can be provided between the rectangular panels at the apex of the triangular end panel (not shown) opposite the other triangular end panel 322.
  • the main roof panels 318, 320 can include rectangular portions 340, 348 which extend above the edges 342 of the fin panels 332, 334, as shown in FIGS. 6A-6B .
  • This embodiment of the embossed carton blank 300 may have an embossed pattern 346 that can comprise two rows of x-shaped marks.
  • the embossed pattern 346 can extend from a portion of one rectangular portion 340 along the rectangular fin panels 332, 334 and to a portion of the other rectangular portion 348.
  • each x-shaped mark can have a height of approximately 4 mm, such that when the rows are printed on the rectangular panels 332, 334 and rectangular portions 340, 348 there is approximately 1 mm between the lowermost portion of the bottom row of x-shaped marks and the score 344.
  • embossed portion 346 crosses the score 344, there is a risk of compromising the seal when the top of the carton is sealed in a filling machine.
  • two rows of x-shaped marks are shown in FIGS. 6A-6B , there can be less or more than two rows embossed onto the carton. Additionally, the height of the x-shaped marks can be greater than or less than 4 mm.
  • FIG. 6A shows an embodiment of the embossed carton blank 300 according to the present solution with a fully compressed triangular area 350 that overlaps the vertical crease line 336 ( FIG. 6B ) between the two rectangular fin panels 332, 334.
  • this fully compressed area 350 prevents fibers from contaminating the product when the carton is opened.
  • the fully compressed area 350 can comprise a height of approximately 7 mm, a first width of approximately 20 mm, and a second width of approximately 18 mm.
  • the compressed area 350 is shown in a triangular shape with specific dimensions, the compressed area 350 can comprise different dimensions and/or different shapes.
  • FIGS. 7A-7B another embodiment of an embossed carton blank 400 according to the present solution is shown.
  • the embossed carton blank 400 may have a similar structure as the embodiment shown in FIGS. 6A-6B and the prior art embodiments shown in FIGS. 4-5 .
  • the carton blank 400 When the carton blank 400 is folded, it may have a similar configuration as the prior art carton shown FIGS. 3A-3C .
  • the embossed carton blank 400 can comprise front and back walls 404, 406, side walls 410, rectangular fin panels 432, 434, rectangular portions 440, 448, a plurality of crease lines 412, 414, 419, 421 436, 444, triangular back-folding panels 426, triangular folding panels 427, and triangular end panels 422.
  • the plurality of crease lines may include vertical crease lines 436, a score 444, and diagonal crease lines 419, 421.
  • This embodiment of the embossed carton blank 400 may have an embossed pattern 446 that can comprise three rows of ovals. In certain embodiments, each oval may have a height of approximately 2 mm and a width of approximately 45 mm. These dimensions allow for the lowermost portion of the ovals to be 1 mm from the score 444.
  • this embodiment of the embossed carton blank 400 can also include a fully compressed area 450 overlapping the vertical crease line 436.
  • a fully compressed area 450 overlapping the vertical crease line 436.
  • three rows of ovals are shown in FIGS. 7A-7B , there can be less or more than three rows embossed onto the carton.
  • the height and width of the ovals can be greater than or less than 2 mm and 45 mm, respectively.
  • the compressed area 450 can comprise different dimensions and/or different shapes than shown in FIG. 4A .
  • an x-shaped embossed pattern and an oval embossed pattern are shown, the embodiments described herein can comprise a variety of suitable shapes for sealing a carton. Moreover, the embodiments/examples disclosed herein may comprise differently shaped compression areas with different dimensions and a different number of rows.
  • the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list.
  • the term “and/or” in reference to a list of two or more items covers all of the following interpretations of the word: any one of the items in the list, all of the items in the list, and any combination of the items in the list.
  • the term “each,” as used herein, in addition to having its ordinary meaning, can mean any subset of a set of elements to which the term “each” is applied.
  • the words “herein,” “above,” “below,” and words of similar import when used in this application, refer to this application as a whole and not to any particular portions of this application.
  • the terms “generally parallel” and “substantially parallel” refer to a value, amount, or characteristic that departs from exactly parallel by less than or equal to 15 degrees, 10 degrees, 5 degrees, 3 degrees, 1 degree, or 0.1 degree.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
EP21154584.3A 2020-02-14 2021-02-01 Carton à pignon comprenant un motif gaufré Withdrawn EP3865414A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16/791,967 US20210253298A1 (en) 2020-02-14 2020-02-14 Apparatuses and methods for a carton opening arrangment

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EP3865414A1 true EP3865414A1 (fr) 2021-08-18

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EP21154584.3A Withdrawn EP3865414A1 (fr) 2020-02-14 2021-02-01 Carton à pignon comprenant un motif gaufré

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EP (1) EP3865414A1 (fr)
WO (1) WO2021160456A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
NO20211260A1 (en) * 2021-10-19 2023-04-20 Elopak Asa Gable-top packaging container

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Publication number Priority date Publication date Assignee Title
NO20240754A1 (en) * 2024-07-12 2026-01-13 Elopak Asa Paperboard-based container

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE3446323A1 (de) * 1984-12-19 1986-06-26 Tetra Pak International AB, Lund Fluessigkeitsverpackung und vorrichtung zu deren herstellung
US4712727A (en) 1987-04-10 1987-12-15 Minnesota Mining And Manufacturing Company Gable-top container closure system
US4744467A (en) 1984-12-19 1988-05-17 Tetra Pak International Ab Liquid pack with areas of low adhesion
EP0546383A1 (fr) 1991-12-10 1993-06-16 Tetra Laval Holdings & Finance SA Procédé et dispositif pour fabriquer un dispositif d'ouverture pour boîtes, et boîte ainsi obtenue
JPH08324563A (ja) * 1995-06-05 1996-12-10 Dainippon Printing Co Ltd 液体紙容器

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WO2023067032A1 (fr) * 2021-10-19 2023-04-27 Elopak Asa Récipient d'emballage en toit

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US20210253298A1 (en) 2021-08-19

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