WO2019054927A1 - Fermeture de transport, récipient d'emballage comprenant la fermeture de transport et procédé permettant de retirer la fermeture de transport du récipient d'emballage - Google Patents

Fermeture de transport, récipient d'emballage comprenant la fermeture de transport et procédé permettant de retirer la fermeture de transport du récipient d'emballage Download PDF

Info

Publication number
WO2019054927A1
WO2019054927A1 PCT/SE2018/050927 SE2018050927W WO2019054927A1 WO 2019054927 A1 WO2019054927 A1 WO 2019054927A1 SE 2018050927 W SE2018050927 W SE 2018050927W WO 2019054927 A1 WO2019054927 A1 WO 2019054927A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
transport closure
tab
pull
peripheral edge
Prior art date
Application number
PCT/SE2018/050927
Other languages
English (en)
Inventor
Simon Holka
Fredrik Konstenius
Kajsa DAHLIN
Eva Sunning
Original Assignee
Å&R Carton Lund Aktiebolag
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 Å&R Carton Lund Aktiebolag filed Critical Å&R Carton Lund Aktiebolag
Priority to EP18856558.4A priority Critical patent/EP3681813B1/fr
Priority to US16/647,308 priority patent/US20200277101A1/en
Priority to CN201880060151.2A priority patent/CN111108043B/zh
Priority to RU2020113331A priority patent/RU2765023C2/ru
Publication of WO2019054927A1 publication Critical patent/WO2019054927A1/fr

Links

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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0016—Action for opening container pivot tab, push-down and pull-out tear panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0059—General cross-sectional shape of container end panel
    • B65D2517/0061—U-shaped
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/008—Materials of container end panel
    • B65D2517/0082—Coated or laminated metal
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/008—Materials of container end panel
    • B65D2517/0085—Foil-like, e.g. paper or cardboard
    • B65D2517/0086—Foil-like, e.g. paper or cardboard laminated
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/2058—Pull tabs attached to the closure

Definitions

  • the present disclosure pertains to a transport closure for use in a packaging container for bulk solids. More specifically, the present disclosure pertains to a transport closure having improved opening characteristics. The present disclosure also pertains to a packaging container comprising the transport closure and a method for removing the transport closure from the packaging container.
  • paperboard packaging containers which serve as protective transport and storage containers at the retail end and as storage and dispensing containers at the consumer end.
  • Such paperboard containers are usually provided with an openable and closable lid, and with an inner removable or breakable transport closure which keeps the contents fresh and protected against moisture and contamination up until the container is opened by a consumer.
  • the breakable transports closures may be welded to the container wall inner surface to improve the protection of the content during transport and storage. This may be of particular importance for moisture sensitive contents.
  • the packaging container transports closures may be provided with tear-open parts which are opened by using a push-tab and/or a pull-tab to tear away a central part of the transport closure.
  • tear-open parts which are opened by using a push-tab and/or a pull-tab to tear away a central part of the transport closure.
  • an outer border of the transport closure, attached to the inner surface of the container body remains protruding into the container body opening.
  • An example of a container of this type is a packaging container for snacks such as potato chips wherein the chips are piled up in an upwards standing pile.
  • the remaining border of the transport closure reduces the opening size of the packaging container opening, thereby obstructing access to the packaged contents, such as when scooping powdered contents from a container or when trying to pour contents out of a container.
  • the packaged goods is a particulate product, such as a dry infant formula product
  • some of the packaged product may be caught on the transport closure border and may cause the container to appear less hygienic to a user.
  • the present disclosure relates to a transport closure for use in a packaging container for bulk solids.
  • the transport closure comprises or consists of a laminate of a first layer and a second layer.
  • the first layer is delimited by a first layer peripheral edge and the second layer is delimited by a second layer peripheral edge.
  • the second layer comprises or consists of a weldable material and the first layer has higher tear strength than the second layer.
  • the first layer is provided with a weakening line defining a pull-tab in the first layer and having a first and a second base point.
  • the base points are arranged at a base end of the pull-tab, opposite to a gripping end of the pull-tab.
  • Each of the base ends are arranged at a distance, d1 and d2 respectively, of from 1 to 30 mm from the first peripheral edge.
  • the weakening line forms a first and/or a second weakening line leg(s) extending from the first and/or second base point(s), respectively, and alongside with the first layer peripheral edge.
  • the second layer peripheral edge extends beyond the first layer peripheral edge around the perimeter of the transport closure forming a transport closure welding collar.
  • “weakening means” is meant that the first layer of the transport closure is provided with a continuous slit, a series of discontinuous slits, perforations or the like, allowing rupture of the transport closure at a predefined location such that rupture will take place along a predefined separation line.
  • Transport closures having high demands on gas impermeability during transport and storage are often provided with a transport closure in some form. For various reasons there may be a desire to place such transport closures at a distance from the packaging container upper edge, and such transport closure may therefore be welded to the inner surface of the packaging container to provide a gas impermeable seal between the transport closure and the packaging container. Transport closures therefore need to be weldabie.
  • the fact that the transport closure is provided as a laminate of a first layer and a second layer, the first layer having a higher tear strength than the second weldabie layer, provides the transport closure with a higher resistance to unintentional breakage of the transport closure.
  • the peripheral edge of the first layer functions as a tear guide upon tearing of the pull-tab and removal of the transport closure from the container top opening.
  • the peripheral edge of the first layer acts as a tear initiation means by cutting or punching a hole in the second layer at the part of the peripheral edge of the first layer which is located at the base of the pull-tab.
  • the base of the pull-tab is defined between the base-points of the weakening line defining the pull-tab.
  • the ratio of the tear strength of the first layer to the second layer is 1.1 or more, in both CD and MD directions.
  • the ratio of the tear strength of the first layer to the second layer may be from 1.1 or more, such as 1.5 or more, such as 2 or more, such as 4 or more, such as up to 1000.
  • the tear strength is measured according to the standard method DIN 53363 for determining tear resistance of plastic film and sheeting by the trouser tear method and is given as max tear strength (N).
  • the second layer may have a tear strength of from 1 to 100 N, such as 5 to 30 N, in both CD and MD direction.
  • the consumer may upon removal of the transport closure, grip and pull the pull-tab provided in the first layer, along the weakening line and towards the base end of the pull-tab.
  • the first pulling action serves to free the pull-tab from the remainder of the first layer and to raise the pull-tab out of the plane of the first layer.
  • a pressure is applied at the base end of the pull-tab.
  • the user may further enhance the pressure applied at the base end of the pull-tab, by pushing the transport closure downward, into the container within an area at the base end of the pull-tab.
  • the pressure arising at the base end of the pull-tab during the first pulling action initiates or contributes to initiate a rupture in the second layer at the peripheral edge of the first layer.
  • This rupture in the second layer will propagate along the periphery of first layer peripheral edge functioning as a tearing guide, when further pulling the pull-tab upwards and backwards from the base end until the transport closure is almost completely removed from the top opening.
  • the only remains of the transport closure along the inner wall of the packaging container will be the transport closure welding collar formed only by the second layer. Consequently, only a very thin residual egde of the welding collar is left around the periphery of the inner wall of the container.
  • the first layer comprises or consists of a paperboard or paper layer, a metal layer, a plastic layer, or any combination thereof.
  • the first layer has a thickness of from 5 to 2000 Mm, such as from 20 to 500 Mm. This provides stiffness to the first layer and distinct peripheral edge forming a good tearing guide for the second material layer upon removal of the transport closure.
  • the second layer comprises or consists of a plastic film or a metal foil, such as Al foil, or a combination thereof.
  • the second layer has a thickness from 2MITI to 500 prn, such as from 5 Mm to 100 pm.
  • the fact that the second layer has a thickness of from 2 ⁇ to 500 Mm, such as from 5Mm to 100 ⁇ gives a low tearing strength upon opening of the transport closure, while still enabling a good welding seal against an inner wall of a packaging container.
  • a thin second layer is beneficial as it leaves a minimal amount of residual material on the container wall after removal of the transport closure.
  • the first layer has a stiffness that is greater than said second layer.
  • the second layer peripheral edge extends beyond the first layer peripheral edge by a distance of from 1 mm to 25 mm, such as from 2 mm to 25 mm or 2 mm to 10 mm.
  • the fact that the second layer peripheral edge extends beyond the first layer peripheral edge by a distance of from 1 mm to 25 mm provides the transport closure with a peripheral welding area for securely attaching the transport closure by welding to the inner walls of a packaging container.
  • the first and second base points at the pull-tab base end are arranged at a distance from each other of each least 3 mm, such as at least 8 mm.
  • the base line of the pull-tab is the distance between the base points, i.e. the width of the pull-tab at the base points, which may be smaller than the width of the pull-tab at the gripping end of the pull- tab, thereby concentrating the traction force creating when pulling at the pull-tab within a limited area at the base of the pull-tab.
  • the base end of the pull-tab may be located at any portion of the peripheral edge of the first layer, such as at a straight or curved portion of the peripheral edge of the first layer.
  • the first layer comprises a corner portion and the pull-tab is arranged with the base end in the first layer corner portion.
  • the pull-tab and more specifically the base end of the pull-tab, in a corner portion, the tearing direction for the second layer along the peripheral edges of the first layer will to some extend correspond to the tearing movement of the consumer hand, compared to when the pull-tab is arranged at a side edge and the tearing direction initially will be directed outwardly and essentially 90 degrees in relation to the tearing movement of the consumer hand.
  • the pull-tab is arranged with the base end between two corner portions in the first layer, such as between two corner portions in a generally rectangular transport closure having four corner portions.
  • a corner portion is a curved corner portion having a radius of curvature of from 7-65 mm, preferably 10-65 mm, more preferably 15-30 mm.
  • the first layer is laminated to the second layer along at least one welding joint extending in parallel with the first layer peripheral edges, such as for example at a distance of from 1 to 10 mm from the first layer peripheral edges.
  • the first layer may be laminated to the second layer essentially only by a welding joint extending along and at the first layer peripheral edges, providing the transport closure with a slight bulge within the area which is free from attachments between the first and second layers, such that the force is focused to the area of rupture and separation of the transport closure from the inner wall of a packaging container.
  • the outwardly bulging non-attached part of the first layer may also serve to facilitate gripping and freeing of the pull-tab from the remainder of the first layer. It may be advantageous that a slit is formed through the first layer at the gripping end of the pull-tab, to allow a user to insert a finger or a finger nail through the slit to get an initial hold of the gripping end of the pull-tab.
  • the bulging part of the first layer aids in widening the gripping end slit, to further facilitate gripping of the pull-tab.
  • the distances d1 and d2 for the first and the second base points of the weakening line are each from 1 to 10 mm from the first layer peripheral edge.
  • base points herein is meant the points of the weakening lines forming the end points of the pull-tab contour and are located at the base end of the pull-tab. The base points are thus the points along the contour of the pull-tab being closest to the peripheral edge of the first layer.
  • the weakening line additionally forms one or two weakening line leg(s) extending from the pull-tab base end(s) and alongside with the peripheral edges of the first layer. The one or two weakening line leg(s) may end with an inwards curve or bend.
  • the weakening line leg(s) extending from the base points, and in parallel with the peripheral edges of the first layer, may reduce the force required to break the second layer at the first layer peripheral edges, as the first layer is separated from the second layer at the weakening line leg(s). Therefore, only breaking and pulling of the material between the first layer peripheral edges and the weakening line leg(s) upon removal of the transport closure is required for complete removal of the transport closure.
  • the pull-tab has a V-shape, U-shape, O-shape or a modified U-shape.
  • a push-in area provided at the gripping end of the pull-tab, is defined in the first layer.
  • the push-in area may be formed by the absence of the first layer material in an area at the gripping end of the pull-tab, such as by means of cutting out or punching out an area of the first layer prior to lamination to the second layer.
  • the push-in area may be identified at the gripping end of the pull-tab by any identification means such as print, embossings, perforations, scorings, colouring or any combination of identification means.
  • a push-in area is defined in the first layer and that the push-in area is provided at the gripping end of the pull-tab provides instructions to the consumer to apply pressure at the push-in area.
  • the gripping end of the pull-tab will be inclined away from the transport closure and define a gap under the gripping end, facilitating grasping of the pull-tab gripping end.
  • a second push-in area may be defined in the first layer at the base end of the pull-tab.
  • a push-in area at the base end of the pull-tab may be identified as set out above, by any identification means such as print, embossings, perforations, scorings, colouring or any combination of identification means.
  • the present disclosure relates to a packaging container for bulk solids.
  • the container comprises a tubular container body with a top end with a top opening and a bottom end with a bottom opening comprising a container bottom.
  • the container body has an inner surface facing towards an inner compartment in the packaging container and an outer surface facing away from the inner compartment.
  • the packaging container is closed at the top opening by a removable transport closure according to the first aspect of the present disclosure and the welding collar is welded to the inner surface of the container body.
  • the present disclosure relates to a method for removing a transport closure according to the first aspect from a packaging container according to the second aspect. The method comprises the steps of:
  • step c) the lifting of the pull-tab in the gripping end will push the base end of the pull-tab inwardly at a second push-in area defined in the second layer at the first layer peripheral edge and thereby break the second layer initiate a crack propagation along the peripheral edges of the first layer.
  • the method further comprises the step of:
  • the term "bulk solids” refers to a solid material.
  • the bulk material may be dry or moist.
  • the bulk solids may be in the form of particles, granules, grinds, plant fragments, short fibres, flakes, seeds, formed pieces of material such as pasta, etc.
  • the bulk solids which are suitable for packaging in the packaging containers as disclosed herein may be flowable, which means that a desired amount of the product may be poured or scooped out of the packaging container, or in the form of discreet pieces of material allowing removal of only part of the content in the packaging container.
  • the packaging container as disclosed herein may be a container for alimentary products such as infant formula, coffee, tea, rice, pasta, chips, flour, sugar, cereals, soup powder, custard powder, or the like.
  • the bulk solids may be non-alimentary, such as tobacco, detergent, fertilizer, chemicals or the like.
  • FIGS. 1 a-1 d illustrate embodiments of a transport closure according to the present disclosure
  • Figures 2a-2b illustrate a packaging container comprising a transport closure according to the present disclosure, and
  • Figures 2c-2e illustrate steps for removing a transport closure from a packaging container according to the present disclosure.
  • Figs. 1 a-d illustrate transport closures for use in a paperboard packaging container for bulk solids according to the first aspect of the present disclosure.
  • the particular shape of the transport closure 1 shown in the figures should not be considered limiting to the invention. Accordingly, a transport closure produced according to the invention may have any useful shape or size, such as circular, rectangular (including square) or any useful polygonal shape. It is to be understood that the polygonal shapes as implied herein are modified polygonal shapes having rounded corner portions.
  • the transport closures shown in the Figs have first and second layers with identical shapes, only differing in size resulting in a welding collar having uniform width around the peripheral edge of the first layer. It is to be understood that although such embodiments are generally preferred, embodiments where the width of the welding collar varies along the peripheral edge of the first layer may also be useful.
  • the welding collar may have a greater width at the corner portions of a transport closure, to provide more weldable material for ensuring a tight seal at the corner.
  • the transport closure 1 comprises or consists of a laminate of the first layer 2 and the second layer, as illustrated in Fig. 1 b.
  • the first layer 2 is delimited by a first layer peripheral edge 4 and the second layer 3 is delimited by a second layer peripheral edge 5.
  • the first layer 2 has an essentially triangular shape with side edges 13 and three rounded corner portions 12, and the second layer 3 has the same shape as the first layer 2.
  • the second layer peripheral edge 5 extends beyond the first layer peripheral edge 4, forming a transport closure welding collar 8.
  • the second layer 3 has a larger surface area than the first layer 2.
  • the second layer 3 comprises or consists of a weldable material and the first layer 2 has higher tear strength and preferably also a higher stiffness than the second layer 3.
  • the first layer 2 is provided with a weakening line 6 defining a pull-tab 7 in the first layer 2.
  • the pull-tab 7 which has a modified U-shape, has a gripping end 7a and a base end 7b.
  • the weakening line 6 comprises two base points 6a, 6b arranged at the base end 7b of the pull-tab 7, at the points along the part of the weakening line forming the pull-tab 7 contour which are arranged at the shortest distance from the first layer peripheral edge 4.
  • the first base point 6a is arranged at a distance d1 from the first layer peripheral edge 4 and the second base point 6b is arranged at a distance d2 from the first layer peripheral edge 4.
  • the distance between the first base point 6a and the second base point 6b may be 3 mm or more, such as from 8 mm to 25 mm.
  • the weakening line 6 is additionally formed such as to provide a first and a second weakening line leg 20a, 20b extending from the first and the second pull-tab base ends 6a, 6b respectively and parallel with the first layer peripheral edge 4.
  • the weakening line legs 20a, 20b each end with an inwards bend 20.
  • the inwardly curved bend 20 supports correct breaking and tearing along the first layer peripheral edges 4 and prevents tearing in an undesired direction..
  • Fig. 1 c illustrates a transport closure 1 similar to the transport closure 1 illustrated in Figs 1 a-b, but is additionally provided with a first push-in area 9 defined in the first layer 2.
  • the first push-in area 9 is formed by the absence of the first layer material 2 in an area at the gripping end 7a of the poti-tab 7 and has been formed by punching out an area of the first layer 2 prior to lamination to the second layer 3.
  • identifying the first push-in area 9 may be by printing or embossing or any other suitable means, as set out herein which may provide instructions to the consumer to apply pressure at the first push-in area 5 9 so that the gripping end 7a is inclined away from the transport closure 1 and a gap is formed under the gripping end 7a facilitating grasping of the pull-tab 7.
  • Fig 1 d illustrates a further transport closure 1 according to the present disclosure.
  • the transport closure 1 is a laminate of the first layer 2 and the second layer.
  • the first layer 2 is a laminate of the first layer 2 and the second layer.
  • the first layer 2 has an essentially triangular shape with side edges 13 and three rounded corner portions 12. It should however be noted that the transport closure 1 and each of the first and the second layers 2,3 may have other shapes such as for example round, oval, square, square with rounded edges, rectangular and
  • the second layer 3 has the same shape as the first layer 2.
  • the second layer peripheral edge 5 extends beyond the first layer peripheral edge 4, forming a transport closure welding collar 8. It is however not necessary that the first and second layers have the same shape, as long as the second layer peripheral edge 5 extends beyond the first layer peripheral edge 4, forming a
  • the second layer 3 comprises or consists of a weldable material, such as al foil or a plastic film, and the first layer 2 has higher tear strength and a higher stiffness than the second layer 3.
  • the first layer 2 may for example be made of a paperboard material.
  • the first layer 2 is provided with a weakening line 6 defining a pull- tab 7 in the first layer 2.
  • the pull-tab 7 has a modified U-shape with a slight curve at one
  • the pull-tab has a gripping end 7a, opposite to the base end 7b.
  • the weakening line 6 comprises two base points 6a, 6b arranged at the base end 7b at the points along the part of the weakening line forming the pull-tab 7 contour which are arranged at the shortest distance from the first layer peripheral edge 4.
  • the first base point 6a is arranged at a distance d1 from the first layer peripheral edge 4 and the second
  • second base point 6b is arranged closer to the first peripheral edge 4 than the first base point 6a.
  • the weakening line 6 is additionally formed such as to provide a first weakening line leg 35 20a extending from the first pull-tab base ends 6a and parallel with the first layer peripheral edge 4.
  • the weakening line leg 20a ends with an inwards bend 20.
  • the inwards bend 20 supports correct breaking and tearing along the first layer peripheral edges 4 and prevents tearing in an undesired direction.
  • the transport closure 1 is also provided with a first push-in area 9 defined in the first layer 2 in connection with the gripping end 7a of the pull-tab 7.
  • the first push-in area 9 is formed by the absence of the first layer material 2 in an area at the gripping end 7a of the pull-tab 7 and has been formed by punching out an area of the first layer 2 prior to lamination to the second layer 3.
  • the first push-in area 9 may be indicated by any suitable indication means.
  • Fig. 2a illustrates a packaging container 10 for bulk solids provided with a transport closure 1.
  • the container 10 comprises a tubular container body 14 extending between a top end 15 and a bottom end 17.
  • the top end 15 has a top opening 16, and the bottom
  • the 15 end 17 has a bottom opening comprising a container bottom.
  • the container body 14 has an inner surface 20, as illustrated in Fig. 2b, facing towards an inner compartment in the packaging container 10 and an outer surface 21 facing away from the inner compartment.
  • the packaging container 10 is closed at the top opening 16 by a removable transport closure 1.
  • the transport closure is attached in the packaging container by welding the
  • the packaging container may optionally comprise a lid or a lid component as known in the art. It may be preferred that the packaging container comprises a lid component with a hinge-lid as disclosed in WO 2016/126191 A1 or a lid as disclosed in non-published application
  • a lid component may include a lid and a rim or frame which is applied along the edge of the top opening 16.
  • the reinforcing rim is preferably a plastic rim, most preferably a thermoplastic rim and is attached to the container body wall at the container top opening 30 16 either directly by welding or gluing or indirectly by being mechanically attached to
  • Fig. 2b is a cross-sectional view of the packaging container according to Fig. 2a.
  • the second layer 3 welding collar 8 is flexed towards the top end 15 of the packaging container 10 in a longitudinal direction.
  • the welding collar 8 is attached to the inner surface 18 of the packaging container 10 by a welding joint.
  • the welding collar 8 may of course be flexed towards the bottom end 17 as well.
  • Figs 2c-e illustrate a method of removing the transport closure 1 from the packaging container 10. In Fig. 2c, the consumer starts removal of the transport closure by gripping the pull-tab at the gripping end 7a.
  • the consumer may apply pressure at the first push-in area 9 defined in the first layer 2 and provided in connection to the gripping end 7a of the pull-tab.
  • the first push-in area 9 may for example be formed by a cut-out in the first layer 2, or by printing or embossing in the area to provide instructions to the consumer to apply pressure in this area for inclining the gripping end 7a upwardly.
  • the consumer subsequently pulls the pull-tab 7 along the weakening line (6) to separate the pull-tab from the first layer 2 and towards the base end 7b and the first layer peripheral edge 4.
  • Fig. 2d the pull-tab 7 is pulled slightly upwards and towards the base end 7b and the first layer peripheral edge 4
  • Fig. 2e is an illustration of the pressure resulting at the base end 7a of the pull-tab 7 and when the pull-tab 7 is pulled forward and upwards.
  • the gripping end 7a will push the base end 7b of the pull-tab 7 inwardly at a second push-in area 1 1 defined in the second layer 3 at the first layer peripheral edge 4 and thereby break the second layer 3 initiate a crack propagation along the first layer peripheral edges 4.
  • Fig. 2d-e the removal of the transport layer 1 from the packaging container 10 is shown.
  • the second layer 3 breaks and detaches from the inner surface 20 at the welding seal along the peripheral edges 4 of the first layer 2 until said transport closure 1 is completely detached from the packaging container 10 and leaving a residual edge of the welding collar 8 having a width of less than 0.5 mm extending into the top opening 16 of the container body 14.
  • the first layer 2 is attached to the second layer 3 along a joint, formed by adhesive or welding, extending in parallel with the first layer peripheral edges 4, such as for example at a distance of from 1 to 10 mm from the first layer peripheral edges 4.
  • the attachment between the first and the second layer 2,3 may be reinforced at the base end 7b of the pull-tab 7.
  • the weakening line legs 20a, 20b separate the first layer 2 from the second layer 3 upon removal of the transport closure.
  • the force required to break the second layer 3 and remove the transport closure will be thereby be reduced. Therefore, only breaking and pulling of the material between the first layer peripheral edges and the weakening line leg(s) upon removal of the transport closure is required for complete removal of the transport closure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)

Abstract

La présente invention concerne une fermeture de transport (1) destinée à être utilisée dans un récipient d'emballage (10) destiné à des matières solides en vrac. La fermeture de transport (1) comprend ou est constituée d'un stratifié d'une première couche (2) et d'une seconde couche (3). La première couche (2) est délimitée par un bord périphérique de première couche (4), et la seconde couche (3) est délimitée par un bord périphérique de seconde couche (5). La seconde couche (3) comprend ou est constituée d'un matériau pouvant être soudé, et la première couche (2) possède une résistance à la déchirure supérieure à celle de la seconde couche (3). La première couche (2) est pourvue d'une ligne d'affaiblissement (6) définissant une tirette (7) dans la première couche (2) et possédant un premier et un second point de base (6a, 6b). Les points de base (6a, 6b) sont agencés à une extrémité de base (7b) de la tirette (7), opposée à une extrémité de préhension (7a) de la tirette (7). Chacun des points de base (6a, 6b) est agencé à une distance, d1 et d2 respectivement, de 2 à 15 mm à partir du bord périphérique de première couche (4), la ligne d'affaiblissement (6) formant une première et/ou une seconde patte de ligne d'affaiblissement (20a, 20b) s'étendant à partir du premier et/ou du second point de base (6a, 6b), respectivement, et le long du bord périphérique de première couche (4). Le bord périphérique de seconde couche (5) s'étend au-delà du bord périphérique de première couche (4) autour du périmètre de la fermeture de transport (1), formant un collier de soudage de fermeture de transport (8). L'invention comporte également un récipient d'emballage comprenant la fermeture de transport et un procédé destiné à retirer la fermeture de transport du récipient d'emballage.
PCT/SE2018/050927 2017-09-14 2018-09-13 Fermeture de transport, récipient d'emballage comprenant la fermeture de transport et procédé permettant de retirer la fermeture de transport du récipient d'emballage WO2019054927A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18856558.4A EP3681813B1 (fr) 2017-09-14 2018-09-13 Fermeture de transport, récipient d'emballage comprenant la fermeture de transport et procédé permettant de retirer la fermeture de transport du récipient d'emballage
US16/647,308 US20200277101A1 (en) 2017-09-14 2018-09-13 Transport Closure, A Packaging Container Comprising The Transport Closure And A Method For Removing The Transport Closure From the Packaging Container
CN201880060151.2A CN111108043B (zh) 2017-09-14 2018-09-13 运输封闭件、包括运输封闭件的包装容器、以及用于从包装容器移除运输封闭件的方法
RU2020113331A RU2765023C2 (ru) 2017-09-14 2018-09-13 Укупорочное средство для транспортировки, упаковочный контейнер, содержащий укупорочное средство для транспортировки, и способ удаления укупорочного средства для транспортировки с упаковочного контейнера

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1751125-4 2017-09-14
SE1751125A SE541381C2 (en) 2017-09-14 2017-09-14 Transport closure, a packaging container and a method for removing the transport closure from the container

Publications (1)

Publication Number Publication Date
WO2019054927A1 true WO2019054927A1 (fr) 2019-03-21

Family

ID=65723762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2018/050927 WO2019054927A1 (fr) 2017-09-14 2018-09-13 Fermeture de transport, récipient d'emballage comprenant la fermeture de transport et procédé permettant de retirer la fermeture de transport du récipient d'emballage

Country Status (6)

Country Link
US (1) US20200277101A1 (fr)
EP (1) EP3681813B1 (fr)
CN (1) CN111108043B (fr)
RU (1) RU2765023C2 (fr)
SE (1) SE541381C2 (fr)
WO (1) WO2019054927A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD980069S1 (en) 2020-07-14 2023-03-07 Ball Corporation Metallic dispensing lid

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1358396A (fr) * 1962-11-19 1964-04-17 Cantop Procédé et machine pour fabriquer des fermetures déchirables pour récipients
GB998102A (en) * 1961-04-07 1965-07-14 British United Shoe Machinery Improvements in or relating to containers
GB1038995A (en) * 1963-05-07 1966-08-17 Andrea Angelo R D Improvements in containers
US3401824A (en) * 1967-09-07 1968-09-17 American Can Company Inc Full-open can
US4210618A (en) * 1975-09-12 1980-07-01 Ab Akerlund & Rausing Method of making tear opening devices for containers
US4533063A (en) * 1982-09-23 1985-08-06 Robert Bosch Gmbh Container lid having an opening device
WO2014062119A1 (fr) * 2012-10-19 2014-04-24 Å&R Carton Lund Ab Couvercle souple
EP3085636A1 (fr) * 2015-04-20 2016-10-26 N.V. Nutricia Feuille d'étanchéité avec ligne de déchirure

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195763A (en) * 1960-11-10 1965-07-20 Fried Louis Receptacle and opening means therefor
US4207725A (en) * 1974-06-03 1980-06-17 Phillips Petroleum Company Package and method of package use
SE435035B (sv) * 1982-05-10 1984-09-03 Akerlund & Rausing Ab Lengs anvisning rivbar behallardel samt forfarande for dess framstellning
SE462034B (sv) * 1983-05-19 1990-04-30 Akerlund & Rausing Licens Ab Oeppningsanordning foer foerpackningar
JPS61217350A (ja) * 1985-03-09 1986-09-26 東洋製罐株式会社 容器蓋体
CH666458A5 (de) * 1985-04-24 1988-07-29 Sandherr Packungen Ag Verpackungsbehaelter.
SE464461B (sv) * 1987-05-06 1991-04-29 Akerlund & Rausing Ab Foerslutningsanordning till foerpackningsbehaallare
SE467049B (sv) * 1988-02-16 1992-05-18 Akerlund & Rausing Ab Foerpackningsaendfoerslutning anordnad med grepp och rivanvisning foer laettare oeppnande av foerpackningar
US4888222A (en) * 1988-05-09 1989-12-19 International Paper Company Oxygen impermeable leak free container
US20020119223A1 (en) * 2000-05-08 2002-08-29 The Procter & Gamble Company Container bottom and methods
AU2002230667A1 (en) * 2000-11-13 2002-05-21 The Procter And Gamble Company Substantially triangular-shaped over-cap
EP1818259A3 (fr) * 2000-11-13 2007-08-22 The Procter and Gamble Company Procédé de remplissage d'un récipient avec des chips
US20060057315A1 (en) * 2001-06-14 2006-03-16 De Coninck Robert A Hermetically closed container and process for its manufacture
WO2002102670A1 (fr) * 2001-06-14 2002-12-27 The Procter & Gamble Company Recipient hermetiquement ferme et procede de fabrication correspondant
JP2007520398A (ja) * 2004-02-05 2007-07-26 エヌ．ブイ．・ヌートリシア 粉体物質用包装体
US7757879B2 (en) * 2005-11-29 2010-07-20 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method of making same
US8740052B2 (en) * 2006-04-07 2014-06-03 Sonoco Development, Inc. Membrane closure for container
US7703625B2 (en) * 2006-11-15 2010-04-27 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method for making same
US8114451B2 (en) * 2006-12-27 2012-02-14 Kraft Foods Global Brands Llc Resealable closure with package integrity feature
US20130092312A1 (en) * 2011-10-14 2013-04-18 Kellogg Company Methods for forming composite structures
WO2015002651A1 (fr) * 2013-07-03 2015-01-08 Curwood, Inc. Emballage à pliures
SE540901C2 (en) * 2016-07-08 2018-12-18 A & R Carton Lund Ab Sealing disc for a packaging container and a packaging container comprising the sealing disc.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998102A (en) * 1961-04-07 1965-07-14 British United Shoe Machinery Improvements in or relating to containers
FR1358396A (fr) * 1962-11-19 1964-04-17 Cantop Procédé et machine pour fabriquer des fermetures déchirables pour récipients
GB1038995A (en) * 1963-05-07 1966-08-17 Andrea Angelo R D Improvements in containers
US3401824A (en) * 1967-09-07 1968-09-17 American Can Company Inc Full-open can
US4210618A (en) * 1975-09-12 1980-07-01 Ab Akerlund & Rausing Method of making tear opening devices for containers
US4533063A (en) * 1982-09-23 1985-08-06 Robert Bosch Gmbh Container lid having an opening device
WO2014062119A1 (fr) * 2012-10-19 2014-04-24 Å&R Carton Lund Ab Couvercle souple
EP3085636A1 (fr) * 2015-04-20 2016-10-26 N.V. Nutricia Feuille d'étanchéité avec ligne de déchirure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3681813A4 *

Also Published As

Publication number Publication date
CN111108043B (zh) 2022-02-08
RU2020113331A (ru) 2021-10-14
SE1751125A1 (en) 2019-03-15
US20200277101A1 (en) 2020-09-03
EP3681813B1 (fr) 2022-04-06
CN111108043A (zh) 2020-05-05
RU2765023C2 (ru) 2022-01-24
SE541381C2 (en) 2019-09-10
EP3681813A1 (fr) 2020-07-22
EP3681813A4 (fr) 2021-06-16
RU2020113331A3 (fr) 2021-11-19

Similar Documents

Publication Publication Date Title
EP4190713B1 (fr) Disque d'étanchéité à poussée et traction pour récipient d'emballage
EP3442875B1 (fr) Récipient et couvercle d'emballage en carton et méthode de production
EP3481738B1 (fr) Disque d'étanchéité pour un récipient d'emballage, récipient d'emballage comprenant le disque d'étanchéité et procédé permettant de produire le disque d'étanchéité
US11878840B2 (en) Method of producing a packaging container and a packaging container
EP3546387B1 (fr) Membrane à déchirure comportant une languette de manipulation, conteneur d'emballage
EP3870515B1 (fr) Récipient composite à partie supérieure séparable, ébauche et procédés de séparation d'un bord vis-à-vis d'un corps tubulaire
US12006098B2 (en) Composite container with separable top, a body blank, and a method of separating a top end portion from a main body of the container
EP3681813B1 (fr) Fermeture de transport, récipient d'emballage comprenant la fermeture de transport et procédé permettant de retirer la fermeture de transport du récipient d'emballage
US20220267061A1 (en) Sealing Disc For Paperboard Container And A Packaging Container Comprising The Sealing Disc
US20230044438A1 (en) Method Of Producing A Packaging Container, A Packaging Container And A Curling Tool
CN112105565A (zh) 具有可分离的盖结构的包装

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18856558

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2018856558

Country of ref document: EP

Effective date: 20200414