EP3871997A1 - Behälter mit flexiblem verpackungsbeutel - Google Patents

Behälter mit flexiblem verpackungsbeutel Download PDF

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Publication number
EP3871997A1
EP3871997A1 EP20159427.2A EP20159427A EP3871997A1 EP 3871997 A1 EP3871997 A1 EP 3871997A1 EP 20159427 A EP20159427 A EP 20159427A EP 3871997 A1 EP3871997 A1 EP 3871997A1
Authority
EP
European Patent Office
Prior art keywords
film
area
access opening
flexible packaging
opening
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Withdrawn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
EP20159427.2A
Other languages
English (en)
French (fr)
Inventor
Thomas Scheubner
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.)
CCL Label AG
Original Assignee
CCL Label AG
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 CCL Label AG filed Critical CCL Label AG
Priority to EP20159427.2A priority Critical patent/EP3871997A1/de
Priority to PCT/EP2021/054707 priority patent/WO2021170730A1/en
Priority to EP21706975.6A priority patent/EP4110707A1/de
Priority to BR112022016831A priority patent/BR112022016831A2/pt
Publication of EP3871997A1 publication Critical patent/EP3871997A1/de
Withdrawn legal-status Critical Current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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
    • B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
    • B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
    • B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
    • B65D85/1054—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge combined with an outer sleeve connected to the lid
    • 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
    • B65D77/2068—Means for reclosing the cover after its first opening
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
    • B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
    • B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
    • B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge

Definitions

  • the present invention relates to a container in which a flexible packaging bag formed of a flexible packaging sheet is accommodated. Furthermore, the present invention relates to a flexible packaging sheet. The present invention further relates to a method for manufacturing a flexible packaging sheet web. The present invention also relates to a supply roll on which said flexible packaging sheet web is wound up.
  • consumer goods are distributed to customers in pre-fabricated containers.
  • the consumer goods are additionally wrapped into an inner package made of web material and are accommodated within this inner package inside the container for the consumer goods.
  • the inner package is provided with an access opening which is covered by a resealable adhesive element.
  • PCT patent application WO 2013/098109 and PCT patent application WO 2013/120915 disclose a container for which four different manufacturing steps are necessary to cover an access opening with a resealable adhesive label.
  • a first supply roll of a packaging web has to be produced and provided.
  • a second supply roll containing resealable adhesive elements has to be produced and provided, wherein the resealable adhesive label is arranged onto a release carrier liner.
  • the access openings - preferably equidistantly spaced in a machine direction - have to be defined by weakening the packaging web along the periphery of the access openings.
  • the defined access openings have to be covered by the resealable adhesive labels, wherein the fourth step comprises the separation and removal of the release carrier liner.
  • the third and fourth manufacturing step require that a packaging machine which assembles all components of said container for consumer goods is additionally provided with a cutting station and a labelling station upfront packaging the consumer goods.
  • these manufacturing steps may generate a decisive drawback regarding the manufacturing quality, since three different manufacturing-related deviations may be cumulated. These would be, firstly, the deviation related to the manufacturing of the adhesive labels, i.e. size, shape, and their position on the release carrier liner. Secondly, the deviation related to the die-cutting of the access openings, i.e. size, shape, and their position within the packaging web. Thirdly, the deviation related to the labelling of the adhesive labels onto the die-cut access openings, i.e. their position in relation to the access openings. Thus, the total deviation as the sum of all three deviations could lead to a malfunction of the container or at least to a visible manufacturing deviation.
  • the inner package made of a packaging web and which is to be accommodated inside a container for consumer goods is thin, flexible, and not very resistant, i.e. prone to damage.
  • a container for accommodating consumer goods may comprise an outer housing.
  • the outer housing may comprise a box having a front side and a back side and a lid hinged to the box at the back side of the box for opening and closing a box take-out opening.
  • the box and the lid have an inner surface and an outer surface.
  • the container may comprise a flexible packaging bag for accommodating the consumer goods.
  • the flexible packaging bag may be provided inside the outer housing and may have an access opening facing at least substantially the box take-out opening of the outer housing, wherein the flexible packaging bag may be formed of at least one first film forming the inner side of the flexible packaging bag and at least one second film forming the outer side of the flexible packaging bag and being arranged on the first film wherein at least one resealable adhesive layer is provided between the first film and the second film.
  • the first film may have at least one access opening area defined therein at least partially by at least one weakening line for providing the access opening.
  • the second film may comprise at least one opening support area for uncovering and recovering the access opening and at least one packaging reinforcing area, wherein the opening support area may be partially weakened along its periphery.
  • the area size of the opening support area of the second film may be larger than the area size of the access opening area of the first film and may cover at least substantially fully the access opening area of the first film.
  • An adhesion-reduced area being arranged between the first film and the second film may be provided between two facing borderlines of the access opening area of the first film and the opening support area of the second film.
  • This solution greatly simplifies the manufacturing process because the access opening area, which releases or forms the access opening when the container is opened for the first time, and the opening support area which separates the access opening area from the first film to form the access opening by adhering to the access opening area when the container is opened for the first time, are produced simultaneously with the films lying on top of each other, so that no alignment errors can occur.
  • the overall quality of the container produced is increased.
  • First film is preferably the film, which forms the inner side of the flexible packaging bag.
  • This first film may comprise three layers of which the two outer layers are of a plastic film and the inner layer is of an aluminium foil.
  • the layers may preferably be bonded to each other or laminated one upon another by means of an adhesive layer, e.g. an resealable adhesive layer reinforced by a primer or a permanent adhesive layer, or by means of a lamination adhesive, such as water-based adhesives, solvent-based adhesives, two-component adhesives based on polyurethane (PU), or hot melt adhesives.
  • an adhesive layer e.g. an resealable adhesive layer reinforced by a primer or a permanent adhesive layer
  • a lamination adhesive such as water-based adhesives, solvent-based adhesives, two-component adhesives based on polyurethane (PU), or hot melt adhesives.
  • the adhesives may inter alia be based on acrylic or rubber.
  • the first film may comprise two layers which, when bonded together, form a sandwich print.
  • at least one of the two layers contains a metallization, e.g. an aluminium metallization.
  • the first film may be a monolayer which can be transparent, or preferably coloured, opaque or metallized.
  • the inner sides of the layers may be printed forming a sandwich print. No additional heat seal lacquer is needed for a sandwich print, if both outer sides of the multi-layer film web have good sealing properties.
  • the printing may be performed by flexo printing, rotogravure, offset printing, etc.
  • a variety of materials is usable for the at least one layer of the first film, such as for example polyethylene terephthalate (PET), polyolefin such as polypropylene (PP) or polyethylene (PE), cellophane, acetate, paper, composites of paper and plastic, or any combination of the materials mentioned.
  • the first film is made of a PP film, such as a biaxially oriented polypropylene (BOPP) with a thickness between 20 ⁇ m and 60 ⁇ m.
  • BOPP biaxially oriented polypropylene
  • the printing can also be done by screen printing, letterpress printing or any other common printing technique.
  • the shape of the access opening area may be any shape allowing for a comfortable extraction of consumer goods, e.g. rectangular, circular, oval, etc.
  • the access opening area may be prepared at least along three sides, i.e. along border lines or lines defining the periphery of the access opening area, so that it is possible to lift the material blanked part of the first film within the prepared periphery of the access opening area out of the plane of the first film; preferably, all four sides of the rectangular shape are weakened so that the material within the prepared periphery of the access opening area is fully removable of its position.
  • the periphery of the access opening area may be weakened by die-cutting, perforating, incomplete die-cutting, die cutting for providing catch points, laser cutting, etc.
  • incomplete die-cutting the film is not completely cut through, but a residual thickness of the film remains in order to preserve desired properties of the film, such as good sealing or barrier properties.
  • the area size of the resealable adhesive layer preferably corresponds to that of the second film and both are preferably arranged congruently to each other.
  • the resealable adhesive of the resealable adhesive layer may be a pressure sensitive adhesive or a viscoelastic adhesive which preserves its adhesive force at room temperature and under dry conditions.
  • a resealable adhesive a water-based adhesive, a solvent-based adhesive, or a hot melt adhesive, preferably a UV-cured hot melt adhesive, can be used.
  • the resealable adhesive may comprise rubber, such as a synthetic rubber with styrene block copolymers (like styrene-isoprene/butadiene-styrene (SIBS) or styrene-butadiene-styrene (SBS)), polyurethane (PUR), or acrylates.
  • SIBS synthetic rubber with styrene block copolymers
  • SIBS styrene-isoprene/butadiene-styrene
  • SBS styrene-butadiene-
  • the coat weight of the first adhesive layer may be between 5 g/m 2 and 50 g/m 2 , preferably between 10 g/m 2 and 30 g/m 2 , and more preferably between 15 g/m 2 and 25 g/m 2 , wherein the latter corresponds to an adhesive layer thickness of 15 ⁇ m to 25 ⁇ m.
  • the second film is preferably the film, which forms the outer side of flexible packaging bag.
  • the second film may comprise two layers, wherein both inner sides form a sandwich print, whereby the sandwich print is protected against abrasion or contamination.
  • the outer sides of the second film comprising at least one layer may be printed as well, wherein the printed outer sides may be protected by a lacquer sealing.
  • a variety of materials is usable for the at least one layer of the second film, such as PET, polyolefin such as PP or PE, cellophane, acetate, paper, composites of paper and plastic, or any combination of the materials mentioned.
  • the same material is used for the first and second film, i.e. preferably PP.
  • the thickness of second film web may be between 40 ⁇ m and 200 ⁇ m, preferably between 40 ⁇ m and 80 ⁇ m, i.e. in case of a two-layer film web each PP layer may be between 10 ⁇ m and 60 ⁇ m.
  • the at least one material layer of the second film may be translucent, transparent, coloured, or metallized.
  • the adhesion-reduced area which is arranged between the first film and the second film may be provided between two facing borderlines of the access opening area of the first film and the opening support area of the second film.
  • the borderline of the opening support area, where the adhesion-reduced area is located is the one at which the opening support area is initially peeled off from the first film when the container is opened and the access opening is uncovered by lifting the opening support area.
  • the adhesion-reduced area preferably extends at least approximately perpendicular to the movement direction for uncovering and recovering the access opening.
  • the adhesion-reduced area allows the opening support area of the second film to be easily and conveniently peeled off from the first film when the access opening is to be uncovered, since the initial resistance exerted by the adhesive bonded joint caused by the resealable adhesive layer between the first and the second film is reduced.
  • the whole region between the two borderlines of the access opening area and the opening support area can form an adhesion-reduced area. If the adhesion-reduced area is smaller than the space available between the two borderlines, and if the adhesion-reduced area is closer to the borderline of the opening support area, there will be a region between the borderlines of the access opening area and the opening support area where the resealable adhesive layer is still fully present by what the first film and the opening support area of the second film adhere to each other in this region. This improves the sealing properties of the flexible packaging bag when the access opening is recovered by the second film, in particular by the opening support area of the second film, since the access opening is recovered all around.
  • the reduction in adhesion applies to the resealable adhesive layer, which is arranged between the first film and the second film.
  • the reduction in adhesion may be gradual reduction, e.g. for creating a finger lift tab to peel off the second film from the first film, wherein a gradual reduction does also include a reduction in adhesion to zero, i.e. no adhesion.
  • the adhesion-reduced area may also be adhesion-free, i.e. an area within which the first resealable adhesive layer has a gap.
  • the extension of the adhesion-reduced area in a width direction is larger than the extension in a longitudinal direction.
  • the reduction in adhesion may be caused by applying a deadening agent such as an ink, a lacquer or a powder to a predetermined area of the first resealable adhesive layer so that the adhesive force of this area is deadened to a desired degree. It is also possible to apply the deadening agent by pattern printing to obtain a gradient of an increasing or decreasing adhesive force in at least one direction of the adhesion-reduced area. Thus, the force required to peel off the second film from the first film can be adjusted.
  • a deadening agent such as an ink, a lacquer or a powder
  • the reduction in adhesion can also be achieved by applying an anti-adhesive agent to one of the two mutually facing sides of the first or second film in the desired area, i.e. between the two borderlines of the opening support area and the access opening area and in particular close to the borderline of the opening support area peeled off first when opening the container.
  • the anti-adhesive agent can be formed of anti-adhesive lacquers, like lacquers with silicone additives, other dehesive agents or the like.
  • the area size of the second film being arranged on the first film may be substantially as large as the area size of the first film and the second film may be at least substantially congruently arranged on the outer surface of the first film. This facilitates the manufacturing process considerably.
  • the area size of the second film being arranged on the first film may be at least substantially smaller than the area size of first film to provide a sealing seam area at the first film and the resealable adhesive layer may be substantially fully covered by the second film.
  • there is no resealable adhesive layer in the sealing seam area as the area covered by the resealable adhesive layer is at least approximately equal to the area of the second film.
  • the sealing seam area may be used to form the flexible packaging bag by joining the outer edges, i.e. at least partially along the sealing seam area, by means of a thermal joining process such as thermos-welding or heat-sealing or induction sealing by a gluing process so as to form a flexible packaging bag that accommodates consumer goods.
  • the opening support area of the second film may be at least partially surrounded by the packaging reinforcing area of the second film. This increases the strength of the access opening area, which is particularly stressed by the repeated opening and closing of the container and the repeated removal of the consumer goods.
  • anchor die-cuttings may be provided at a borderline of the access opening area opposite to the adhesion-reduced area to prevent a complete separation of the opening support area from the first film.
  • the opening support area of the second film and the packaging reinforcing area of the second film may be spaced apart preferably at the front side of the box to form a gap.
  • the gap extends preferably at least substantially parallel to the adhesion-reduced area, i.e. at least substantially perpendicular to the movement direction for opening and closing the access opening.
  • a gap can also be provided on the back side of the box.
  • the packaging reinforcing area may be at least substantially fully covered by the front side of the box.
  • the inner surface of the back side of the box can also be covered at least essentially completely by the packaging reinforcement area.
  • a permanent adhesive area may be provided on the opening support area of the second film forming the outer side of the flexible packaging bag, the permanent adhesive area being aligned to the adhesion-reduced area, and wherein the permanent adhesive area may be attached to the inner surface of the lid so that the opening support area of the second film automatically uncovers the access opening of the flexible packaging bag to allow for extracting at least one of the consumer goods when the container is opened by pivoting the lid.
  • the permanent adhesive area may comprise a plurality of smaller sub-areas.
  • a finger lift tab may be formed at the opening support area of the second film to allow for manually uncovering and recovering the access opening of the flexible packaging bag.
  • the adhesion-reduced area can at least substantially be adhesion-free or the adhesive of the resealable adhesive layer in the adhesion-reduced area may be at least partially deadened. This can be achieved, for example, by briefly interrupting the application of the resealable adhesive layer or by applying a deadening agent.
  • the adhesion-reduced area is formed by an anti-adhesive agent, such as an anti-adhesive lacquer, being provided on one of the two mutually facing sides of the first or second film and/or being provided on the resealable adhesive layer which is applied to one of the mutually facing sides of the first or second film.
  • an anti-adhesive agent such as an anti-adhesive lacquer
  • At least one primer layer may be provided on the side of the first film facing to the second film within the region of the access opening area to increase the adhesion of the resealable adhesive layer.
  • the primer is located between the side of the first film facing the second film and the resealable adhesive layer.
  • the area size of the primer layer is at most substantially equal to the area size of the access opening area.
  • the area size of the primer layer is equal to the area size of the access opening area.
  • a resealable area between the first film and the opening support area of the second film and surrounding the periphery of the access opening area of the first film is primer-free.
  • a primer can also be provided at those locations between the first and the second film where a separation of the second film from the first film is not desired.
  • a permanent adhesive can also be used instead of a primer.
  • the primer area can comprise a bonding agent to increase the adhesive force of an adhesive.
  • the primer area may be congruent to and directly located at the access opening area; preferably, the surface area of the prepared access opening area is at least larger than that of the primer area.
  • the object of the present invention can further be solved by a flexible packaging sheet for a flexible packaging bag particularly used for accommodating consumer goods, like cigarettes, having a width direction, a longitudinal direction and a thickness direction.
  • the flexible packaging sheet may comprise at least one first film forming the inner side of the flexible packaging bag.
  • the flexible packaging sheet may comprise at least one second film forming the outer side of the flexible packaging bag and being arranged on the first film wherein at least one resealable adhesive layer may be provided between the first film and the second film.
  • the first film may have at least one access opening area defined therein at least partially by at least one weakening line for providing the access opening.
  • the second film may comprise at least one opening support area for uncovering and recovering the access opening and at least one packaging reinforcing area, wherein the opening support area may be partially weakened along its periphery.
  • the area size of the opening support area of the second film may be larger than the area size of the access opening area of the first film and may cover at least substantially fully the access opening area of the first film.
  • An adhesion-reduced area being arranged between the first film and the second film may be provided between two facing borderlines of the access opening area of the first film and the opening support area of the second film.
  • the object of the present invention can further be solved by a method for manufacturing a flexible packaging sheet web, wherein the method comprises the steps of:
  • the feeding direction refers to the machine direction in which a manufacturing machine conveys the different feedstock webs for the sequent processing steps.
  • Both the first and the second film web may comprise at least one layer, i.e. each film web may comprise one or a plurality of material layers.
  • the bonding of the first and second film web by means of the resealable adhesive layer to form a flexible packaging sheet web has to be set or controlled so that the adhesion-reduced areas and the primer areas are spaced apart from each other in feeding direction or at least do not overlap each other.
  • the preparing of the access opening areas has to be controlled so that the prepared access opening areas are preferably centrally arranged at the primer areas and wherein the surface area of the prepared access openings preferably extends beyond the periphery of the primer areas.
  • the die-cutting of the second film web along the periphery of each defined flexible packaging sheet may preferably affect the adhesive layer as well.
  • the step of providing adhesion-reduced areas may further preferably comprise the step of:
  • the method may further comprise the steps of:
  • the separating marks may also be printed only on the first film web before joining the two webs.
  • the separating marks may be applied with typical printing techniques such as flexo printing, offset printing, silkscreen printing, rotogravure printing, digital printing.
  • the printing inks can be UV-inks, water-based inks or solvent-based inks.
  • the individual flexible packaging sheets are defined by means of a high-speed camera or the like which is adapted to the conveying speed of the flexible packaging sheet web.
  • step of providing adhesion-reduced areas further comprises the step of at least approximately regularly interrupting the application of the resealable adhesive layer.
  • the method may further comprises the steps of:
  • the object of the present invention can be solved by a supply roll on which the flexible packaging sheet web manufactured as described above is wound up.
  • Container C for accommodating consumer goods, like cigarettes (not depicted), is shown.
  • Container C comprises an outer housing OH which, in turn, consists of a box B having a front side FS as well as a back side BS, and a lid L hinged to box B at back side BS of box B for opening and closing a box take-out opening TO.
  • Box B and the lid L are preferably made of a relatively stiff material, such as cardboard.
  • Container C further comprises a flexible packaging bag PB being arranged inside outer housing OH.
  • Flexible packaging bag PB which envelopes or accommodates the consumer goods, is formed of a flexible packaging sheet 100.
  • flexible packaging sheet 100 can be formed of at least one first film 102 forming the inner side of flexible packaging bag PB and at least one second film 114 forming the outer side of flexible packaging bag PB and being arranged on the first film 102 wherein at least one resealable adhesive layer 112 is provided between first film 102 and second film 114.
  • Flexible packaging bag PB comprises an access opening AO which faces box take-out opening TO of outer housing OH and which is fully covered by an opening support area 109 provided on second film 114 of flexible packaging bag PB in the closed state of container C.
  • opening support area 109 resealably adheres to the outer surface of first film 102 of flexible packaging bag PB by means of resealable adhesive layer 112.
  • Access opening AO of flexible packaging bag PB is automatically uncovered to allow for extracting at least one of the consumer goods when lid L is pivoted in opening direction to open container C as shown in Fig. 1 . Therefore, a permanent adhesive area 136 applied on the outer surface of opening support area 109 is attached to the inner surface of lid L.
  • opening support area 109 and lid L allows for automatically recover access opening AO when container C is closed by pivoting lid L in closing direction.
  • Access opening AO is defined by lines of weakness along the periphery of an access opening area 108 prepared in first film 102 of flexible packaging bag PB.
  • a blanked part BP of first film 102 within access opening area 108 is removed out of its position and adheres to the inner surface of opening support area 109 by means of resealable adhesive layer 112.
  • Opening support area 109 of second film 114 is cut along a cutting line 120 at its periphery.
  • FIG. 2 another embodiment of container C is shown wherein access opening AO of flexible packaging bag PB has to be uncovered and recovered manually by grabbing opening support area 109 at a finger lift tab LT.
  • Finger lift tab LT is preferably adhesive-free on its inner surface facing first film 102 of flexible packaging bag PB.
  • a first embodiment of flexible packaging sheet 100 according to the present invention is shown of which flexible packaging bag PB is formed.
  • flexible packaging sheet 100 is preferably to be used for being wrapped around the consumer goods and forming a flexible packaging bag PB in which consumer goods are accommodated.
  • flexible packaging bag PB is formed first and then the consumer goods are filled into it.
  • flexible packaging sheet 100 which has a width direction WD, a longitudinal direction LD, and a thickness direction TD, comprises first film 102.
  • First film 102 comprises a first side 104 and a second side 106.
  • an access opening area 108 is defined or prepared for providing access opening AO of flexible packaging bag PB.
  • Access opening area 108 has a rectangular shape and is shown with a broken line in Fig .4 .
  • the defining of access opening area 108 can be done by forming a weakening line via die-cutting, perforating or the like at least partially along the periphery of access opening area 108.
  • access opening area 108 may be completely prepared along its periphery by the weakening line, or it may be U-shaped or the like so that it remains firmly attached to the rest of the material of first film 102.
  • flexible packaging sheet 100 comprises second film 114 which has a first side 116 and a second side 118 and which is arranged on top of second side 106 of first film 102 so that second side 106 of first film 102 and first side 116 of second film 114 are bonded together by means of resealable adhesive layer 112 which is arranged between first and second film 102, 114.
  • the area size of second film 114 and resealable adhesive layer 112 in longitudinal direction LD and width direction WD is as large as that of first film 102.
  • first film 102, second film 114 and resealable adhesive layer 112 are congruently arranged to each other.
  • Second film 114 comprises opening support area 109 and a packaging reinforcing area 115.
  • opening support area 109 and packaging reinforcing area 115 have also a rectangular shape and are shown with full lines. Moreover, as can be seen in Fig. 4 , the area size of opening support area 109 is larger than the area size of access opening AO.
  • Packaging reinforcing area 115 completely surrounds opening support area 109.
  • Opening support area 109 is defined or prepared in second film 114 by forming a weakening line 120 via cutting, die-cutting or the like along the periphery of opening support area, whereby opening support area 109 and packaging reinforcing area 115 are separated from each other.
  • opening support area 109 of second film 114 may be peeled off from second side 106 of first film 102 independently of packaging reinforcing area 115 of second film 114.
  • an adhesion-reduced area 110 facilitating the initial lifting of opening support area 109 is provided between second side 106 of first film 102 and first side 116 of second film 114 adjacent to access opening area 108, wherein adhesion-reduced area 110 preferably extends completely across opening support area 109 in width direction WD.
  • Adhesion-reduced area 110 is either formed by deadening resealable adhesive layer 112 by means of a lacquer, powder or the like, or by leaving this area out of the coating procedure when the resealable adhesive for forming resealable adhesive layer 112 is applied to either second side 106 of first film 102 or first side 116 of second film 114.
  • adhesion-reduced area 110 may be formed by applying an anti-adhesive agent, such as an anti-adhesive lacquer, to either second side 106 of first film 102 or first side 116 of second film 114 by what resealable adhesive layer 112 in the region of adhesion-reduced area 110 substantially adheres to first side 116 of second film 114 or second side 106 of first film 102, respectively.
  • an anti-adhesive agent such as an anti-adhesive lacquer
  • adhesion-reduced area 110 is provided between two facing borderlines or periphery edges of access opening area 108 of first film 102 and opening support area 109 of second film 114 (the periphery edges or borderlines of access opening area 109 and access opening area 108 to the left, referred to Fig. 3 ).
  • first film 102 and second film 114 have the same dimensions in length direction LD and width direction WD so that their outer edges coincide with regard to thickness direction TD. Moreover, both first film 102 and second film 114 comprise one layer, wherein at least one side of at least one layer may be printed or decorated.
  • Figs. 5 and 6 show a second embodiment of flexible packaging sheet 100, wherein the second embodiment is modified compared to the first embodiment of flexible packaging sheet 100 in that a primer area 122 is arranged between access opening area 108 and first side 116 of second film 114.
  • Primer area 122 which has a rectangular shape and which is shown in Fig. 6 with broken lines, increases the adhesion or adhesive force of resealable adhesive layer 112 whereby the adhesive bond between blanked part BP within access opening area 108 is increased.
  • Blanked part PB is removed from its position within access opening area 108 due to this adhesive bond when opening support area 109 is peeled off from second side 106 of first film 102.
  • Primer area 122 comprises a bonding agent or coupling agent.
  • the area size of primer area 122 is at least smaller than the area size of access opening area 108, as presented in Fig. 6 .
  • the area size of primer area 122 at least substantially corresponds to the area size of opening support area 109.
  • a resealable area 126 shown in Fig. 7 with a hatching has to be primer-free to ensure that opening support area 109 can be peeled off from second side 106 of first film 102. Resealable area 126 is indicated in Fig. 7 in which opening support area 109 is not shown.
  • Fig. 8 shows a bottom view of first film 102, i.e. first side 104 of first film 102 is presented.
  • Access opening area 108 may be die-cut into first film 102 along three sides of its periphery forming the letter "U" and additionally, at the fourth side anchor die-cuttings 111 may be provided which prevent a complete separation of blanked part BP from first film 102.
  • a third embodiment of flexible packaging sheet 100 is shown, wherein the area size of second film 114 and resealable adhesive layer 112 is smaller in longitudinal direction LD and width direction WD than the area size of first film 102 to form a sealing seam area 130 at first film 102.
  • sealing seam area 130 the outer edges of first film 102 can be sealed or welded together to form flexible packaging bag PB.
  • sealing seam area 130 can be used completely or only partially.
  • the heat-sealing or heat-welding process to produce flexible packaging bag PB can generally be carried out before or after the consumer goods are placed on first side 104 of first film 102.
  • the outer edges of first film 102 can also be joined by a gluing process.
  • a fourth embodiment of flexible packaging sheet 100 is shown, wherein packaging reinforcing area 115 of second film 114 and opening support area 109 of second film 114 are arranged in longitudinal direction LD. No section of packaging reinforcing area 115 surrounds opening support area 109. Packaging reinforcing area 115 and opening support area 109 are separated from each other along cutting line 120.
  • a fifth embodiment of flexible packaging sheet 100 is shown, wherein the fifth embodiment is modified compared to the fourth embodiment in that a gap 134 is formed between packaging reinforcing area 115 of second film 114 and opening support area 109 of second film 114.
  • gap 134 ensures that packaging reinforcing area 115 is fully covered by front side FS of box B of container C shown in Figs. 1 and 2 .
  • Figs. 13 to 16 also present permanent adhesive area 136 applied on opening support area aligned to adhesion-reduced area 110.
  • permanent adhesive area 136 is permanently affixed to lid L of container C, as shown in Fig. 1 .
  • Fig. 14 shows first film 102 with two layers 102a, 102b permanently adhered to each other by means of a permanent adhesive layer 138 being arranged between both layers 102a, 102b.
  • the area size of both layers 102a, 102b is at least substantially equal.
  • Fig. 15 shows second film 114 with two layers 114a, 114b permanently adhered to each other by means of a permanent adhesive layer 140 being arranged between both layers 114a, 114b.
  • the area size of both layers 114a, 114b is also at least substantially equal.
  • Second layer 114 comprises a lower, first layer 114b whose area size corresponds to the area size of first film 102 and a upper, second layer 114a permanently adhered to first layer 114 by means of a permanent adhesive layer 140, wherein the area size of second layer 114a and permanent adhesive layer 140 is smaller than the area size of the first layer 114b and first film 102, whereby a sealing seam area 130 is formed at first film 102 together with first layer 114b of second film 114.
  • FIGs. 18 and 19 a sixth embodiment of flexible packaging sheet 100 is shown, wherein packaging reinforcing area 115 of second film 114 has been completely removed.
  • a first embodiment of a method for manufacturing a flexible packaging sheet web is shown. From the flexible packaging sheet web, individual packaging sheets 100 can be produced.
  • a first film web 302 is fed to the manufacturing process in feeding direction FD from a first supply roll 300.
  • First film web 302 may be printed on at least one side by means of a first printing station 304.
  • a second film web 310 is fed to the manufacturing process in feeding direction FD from a second supply roll 308.
  • Second film web 310 may also be printed on at least one of its sides in a second printing station 312.
  • second film web 310 is coated on its first side (lower side in Fig. 20 ) with a resealable adhesive in a coating station 314.
  • Equidistantly spaced areas of the coated layer on the first side of second film web 310 are deadened in deadening station 316 to form adhesion-reduced areas 110.
  • primer station 306 equidistantly spaced primer areas 122 are coated onto the second side of first film web 302 (upper side in Fig. 20 ) in order to increase the adhesive force of the resealable adhesive coating in defined areas on the first side of second film web 310 after first film web 302 and second film web 310 have been joined together.
  • first film web 302 and second film web 310 are joined together by means of the resealable adhesive coating on the first side of second film web 310, whereby a two-layered packaging film web 320 is formed.
  • a third printing station 322 one of the sides of packaging web 320 is printed with separating marks 323 to define individual flexible packaging sheets 100. After third printing station 322, packaging film web 320 is further conveyed in feeding direction FD to a preparing station 324.
  • equidistantly spaced access opening areas 108 are prepared into the first side of first film web 302, wherein the preparing of access opening areas 108 may be a weakening of first film web 302 along the periphery of each access opening area 108, such as perforating, laser cutting, die-cutting, incomplete die-cutting, die cutting for providing catch points, laser cutting, etc.
  • second film web 310 is die-cut along its periphery so that the area size of each second film 114 within each defined flexible packaging sheet 100 is smaller than the area size of the corresponding first film 102 to form a sealing seam area 130 at first film 102.
  • opening support areas 109 are die-cut into second film web 310 within each defined flexible packaging sheet 100, whereby, within each defined flexible packaging sheet 100, packaging reinforcing area 115 of second film 114 and opening support area 109 of second film 114 are being separated from each other.
  • the area size of opening support areas 109 is larger than that of access opening areas 108 and, within each defined flexible packaging sheet 100, access opening area 108 is fully covered by an opening support area 109.
  • Cutting residues 328 resulting from the cutting process in die-cutting station 326 are separated from packaging film web 320 and are wound up onto a third supply roll 330.
  • finished flexible packaging sheet web 332 having a plurality of flexible packaging sheets 100 is wound up onto a fourth supply roll 334.
  • a second embodiment of a method for manufacturing a flexible packaging sheet web comprising three film webs.
  • a first film web 424 is fed to the manufacturing process in feeding direction FD from a first supply roll 422.
  • First film web 424 may be printed on at least one side by means of a first printing station 426.
  • primer areas 122 are applied equidistantly spaced to the second side of first film web 424 (upper side in Fig. 21 ).
  • a second film web 408 is fed to the manufacturing process in feeding direction FD from a second supply roll 406.
  • Second film web 408 may also be printed on at least one of its sides in a second printing station 410.
  • the second side of second film web 408 is coated with a primer layer (upper side in Fig. 21 ).
  • a third film web 402 is fed to the manufacturing process in feeding direction FD from a third supply roll 400.
  • Third film web 402 is coated on its first side with an adhesive layer in a first coating station 404 (lower side in Fig. 21 ).
  • First side of third film web 402 and second side of second film web 408 are joined together by means of the adhesive layer in a first joining station 414, wherein the primer layer increases the adhesion or adhesive force of the adhesive layer.
  • the first side of second film web 408 is coated with a resealable adhesive layer in a second coating station 418 (lower side in Fig. 21 ).
  • equidistantly spaced areas of the resealable adhesive layer coated on the first side of second film web 408 are deadened in deadening station 420 to form adhesion-reduced areas 110.
  • first side of second film web 408 and second side of first film web 424 are joined together by means of the resealable adhesive layer so that the primer areas 122 and the adhesion-reduced areas 110 are slightly spaced apart from each other in feeding direction FD.
  • equidistantly spaced access opening areas 108 are prepared into first film web 424, wherein the preparing of access opening areas 108 may be a weakening of first film web 424 along the periphery of each access opening area 108, such as perforating, laser cutting, die-cutting, creasing or the like.
  • second film web 408 and third film web 402 are die-cut along the periphery of individual flexible packaging sheets 100 to form sealing seam areas 130 at first film web 424.
  • equidistantly spaced opening support areas 109 are die-cut into second film web 408 and third film web 402, wherein the area size of opening support areas 109 is larger than that of access opening areas 108 and wherein each access opening area 108 is fully covered by one opening support area 109.
  • Cutting residues 438 resulting from the cutting process in die-cutting station 436 are separated from flexible packaging sheet web 432 and are wound up onto a fourth supply roll 440.
  • finished flexible packaging sheet web 432 having a plurality of flexible packaging sheets 100 is wound up onto a fifth supply roll 444.
  • a top view of a finished flexible packaging sheet web 332 having several flexible packaging sheets 100 is shown, wherein the individual flexible packaging sheets 100 are defined in feeding direction FD by separating marks 323.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
EP20159427.2A 2020-02-25 2020-02-25 Behälter mit flexiblem verpackungsbeutel Withdrawn EP3871997A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20159427.2A EP3871997A1 (de) 2020-02-25 2020-02-25 Behälter mit flexiblem verpackungsbeutel
PCT/EP2021/054707 WO2021170730A1 (en) 2020-02-25 2021-02-25 Container with flexible packaging bag
EP21706975.6A EP4110707A1 (de) 2020-02-25 2021-02-25 Behälter mit flexiblem verpackungsbeutel
BR112022016831A BR112022016831A2 (pt) 2020-02-25 2021-02-25 Recipiente para acomodar bens de consumo, folha de embalagem flexível, método para fabricar uma manta de folha de embalagem flexível e rolo de abastecimento

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20159427.2A EP3871997A1 (de) 2020-02-25 2020-02-25 Behälter mit flexiblem verpackungsbeutel

Publications (1)

Publication Number Publication Date
EP3871997A1 true EP3871997A1 (de) 2021-09-01

Family

ID=69804465

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20159427.2A Withdrawn EP3871997A1 (de) 2020-02-25 2020-02-25 Behälter mit flexiblem verpackungsbeutel
EP21706975.6A Withdrawn EP4110707A1 (de) 2020-02-25 2021-02-25 Behälter mit flexiblem verpackungsbeutel

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21706975.6A Withdrawn EP4110707A1 (de) 2020-02-25 2021-02-25 Behälter mit flexiblem verpackungsbeutel

Country Status (3)

Country Link
EP (2) EP3871997A1 (de)
BR (1) BR112022016831A2 (de)
WO (1) WO2021170730A1 (de)

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GB202011616D0 (en) * 2020-07-27 2020-09-09 Nicoventures Trading Ltd A Package
WO2023217907A1 (en) * 2022-05-13 2023-11-16 Jt International Sa Packet for smoking articles
WO2023217903A1 (en) * 2022-05-13 2023-11-16 Jt International Sa Package for collating a plurality of smoking articles

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WO2013098109A1 (en) 2011-12-30 2013-07-04 Philip Morris Products S.A. Container with adhesive label
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ES2288592T3 (es) * 2003-02-19 2008-01-16 ALCAN TECHNOLOGY & MANAGEMENT LTD. Recipiente de envase con una lamina de envase con sistema integrado de apertura y cierre de nuevo.
DE102009034705A1 (de) * 2009-07-24 2011-01-27 Focke & Co.(Gmbh & Co. Kg) Zigarettenpackung und Verfahren zum Herstellen von Zigarettenpackungen
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WO2021170730A1 (en) 2021-09-02
BR112022016831A2 (pt) 2022-10-11
EP4110707A1 (de) 2023-01-04

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