WO2016087830A1 - Enveloppe pour produits de l'industrie du tabac - Google Patents

Enveloppe pour produits de l'industrie du tabac Download PDF

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Publication number
WO2016087830A1
WO2016087830A1 PCT/GB2015/053648 GB2015053648W WO2016087830A1 WO 2016087830 A1 WO2016087830 A1 WO 2016087830A1 GB 2015053648 W GB2015053648 W GB 2015053648W WO 2016087830 A1 WO2016087830 A1 WO 2016087830A1
Authority
WO
WIPO (PCT)
Prior art keywords
cut
wrapper
layer
label
bundle
Prior art date
Application number
PCT/GB2015/053648
Other languages
English (en)
Inventor
Andrew Bray
Jeonghwan Park
Gary Fallon
Paul Gibson
Original Assignee
British American Tobacco (Investments) Limited
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 British American Tobacco (Investments) Limited filed Critical British American Tobacco (Investments) Limited
Publication of WO2016087830A1 publication Critical patent/WO2016087830A1/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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D85/1018—Container formed by a flexible material, i.e. soft-packages
    • 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
    • B65D85/1056—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the lid
    • B65D85/10568—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the lid opening of the lid opens simultaneously an inner package within 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
    • B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing

Definitions

  • the present invention relates to a wrapper for tobacco industry products, for example a wrapper for cigarettes.
  • Cigarette packs have a wrapped bundle which is received in a hinged lid pack.
  • a part of the wrapped bundle for example an adhesive label, can be peeled back to give access to the cigarettes.
  • a wrapper for tobacco industry products comprising:
  • the first and second cuts being configured such that when the label is lifted the first and second layers delaminate in a peripheral region between the first and second cuts and the regions of the first and second layers are lifted together with said label to create an opening in the laminate defined by the second cut.
  • the label may cover the first cut.
  • the laminate may comprise a pressure-sensitive adhesive between the inner and outer layers, such that the inner and outer layers in the peripheral region will re-adhere to each other on repositioning the label over the opening.
  • An overlapping portion of the label may lie outside of the first cut and comprises a pressure-sensitive adhesive, such that the label will be reattached to the laminate on repositioning the label over the opening.
  • the second cut may be inwardly offset from the first cut, such that the region in the second layer lies within the region in the first layer.
  • the second cut may intersect the first cut at a location along the first cut.
  • the first cut may comprise a part that extends from the location of the intersection with the second cut, such that on lifting the label the second layer is separated along the second cut and then along said part of the first cut.
  • the second layer may be torn along said part of the first cut.
  • the second cut may comprise a part that extends from the location of the intersection with the first cut, such that on lifting the label the first layer is separated along the first cut and then along said part of the second cut.
  • the first layer may be torn along said part of the second cut.
  • the inner and outer layers may comprise orientated polypropylene.
  • the laminate may comprise a third layer, disposed between said first and second layers.
  • the third layer may comprise metal foil.
  • Either the first cut or the second cut may extend from the first layer or second layer, respectively, into the third layer.
  • the first and second cuts may extend through the first and second layers respectively.
  • the first and second cuts may be formed using a laser.
  • a bundle comprising a group of tobacco industry products and the wrapper described above, wrapped around the group of tobacco industry products.
  • the ends of the wrapper maybe fin sealed.
  • a pack comprising a base having an open end, the bundle described above, received in the base, and protruding from the open end, and a lid hingedly attached to the base and pivotable between an open position in which the protruding end of the bundle is accessible and a closed position in which the protruding end of the bundle is covered.
  • a part of the label may be attached to the lid such that opening and closing the lid simultaneously opens and closes the bundle.
  • FIG. l shows a first side of a wrapper
  • FIG. 2 shows the opposite side of the wrapper of FIG. l
  • FIG. 3 shows the wrapper of FIGS, l and 2 in a partially open position
  • FIG. 4 shows another example of a wrapper
  • FIG. 5 shows another example of a wrapper
  • FIGS. 6a and 6b show partial cross-sections of the wrapper of FIGS, l to 5, having different laminate materials
  • FIG. 7 shows a first example of a wrapped bundle formed from the wrapper of FIGS. 1 to 6b;
  • FIG. 8 shows a second example of a wrapped bundle formed from the wrapper of FIGS. 1 to 6b;
  • FIGS. 9 and 10 show schematic drawings of examples of processes for forming the wrapped bundle of FIG. 8;
  • FIG. 11 shows a pack containing the wrapped bundle of FIG. 7 or FIG. 8;
  • FIG. 12 shows a pack containing the wrapped bundle of FIG. 7 or FIG. 8, wherein a part of the adhesive label is attached to an inside surface of the lid, and
  • FIG. 13 shows another example of a pack containing the wrapped bundle of FIG. 7 or FIG. 8, wherein a part of the adhesive label is attached to an inside surface of the lid.
  • the wrapper 1 described hereinafter is for forming a wrapped bundle by wrapping the wrapper around a group of articles, such as a group of tobacco industry products, in this example cigarettes.
  • the wrapper comprises a laminate material having a series of cuts and a label for forming an opening in the laminate material for extracting cigarettes from the wrapped bundle.
  • the cuts and the label provide a convenient means for opening the wrapper for accessing the cigarettes.
  • the label provides an effective and durable seal that improves the shelf-life and freshness of the cigarettes within the wrapped bundle.
  • the laminate material 2 has two or more layers.
  • the laminate material 2 has a first layer 3 and a second layer 4.
  • the first layer 3 is an outer layer and the second layer 4 is an inner layer, such that when the wrapper is wrapped about a group of cigarettes, the first layer 3 is disposed on the outside of the wrapped bundle and the second layer 4 on the inside of the wrapped bundle.
  • the laminate material 2 is provided with a first cut 5 in the first layer 3 and a second cut 6 in the second layer 4.
  • the first and second cuts 5, 6 shown in the accompanying drawings are either shown as a solid line, if the cut is in the layer of the laminate material 2 on the side illustrated, or as a dotted line, if the cut is in the layer of the laminate material 2 on the opposite side to that illustrated.
  • the wrapper 1 is provided with an adhesive label 7.
  • FIG. 1 shows the wrapper 1 from the side of the first layer 3 of the laminate material 2, to which the adhesive label 7 is applied.
  • FIG. 2 shows the wrapper 1 from the side of the second layer 4 of the laminate material 2.
  • a first cut 5 is made in the first layer 3 of the laminate material 2.
  • the first cut 5 extends through or substantially through the first layer 3 of the laminate material 2.
  • the first cut 5 does not extend into the second layer 4 of the laminate material 2.
  • the first cut 5 in the laminate material 2 delimits a first region 8 of the first layer 3, as indicated in FIG. 1.
  • the first cut 5 has a bottom edge 9, opposing side edges 10 and a partial top edge 11 that extends from the opposing side edges 10. Therefore, the first region 8 of the first layer 3 remains attached to the remainder of the first layer 3 of the laminate material 2 across the top edge 11, which acts as a hinge when the wrapper 1 is opened as described hereinafter.
  • a second cut 6 is made in the second layer 4 of the laminate material 2.
  • the second cut 6 extends through or substantially through the second layer 4 of the laminate material 2.
  • the second cut 6 does not extend into the first layer 3 of the laminate material 2.
  • the second cut 6 in the laminate material 2 delimits a second region 12 of the second layer 4, as indicated in FIG. 2.
  • the second cut 6 has a bottom edge 13 and opposing side edges 14 that are parallel to and offset from the bottom edge 9 and opposing side edges 10 of the first cut 5.
  • the opposing side edges 14 of the second cut 6 extend to, or close to, the partial top edge 11 of the first cut 5.
  • the second cut 6 is offset relative to the first cut 5, such that the second cut 6 is disposed within the first cut 5. Therefore, the second region 12 is smaller than, and disposed within, the first region 8. That is, the edges 13, 14 of the second cut 6 are inwardly offset from the edges 9, 10, 11 of the first cut 5.
  • first and second cuts 5, 6 delimit a peripheral region 15 disposed between the first and second cuts 5, 6.
  • the second region 12 of the second layer 4 remains attached to the remainder of the second layer 4 of the laminate material 2 across a top edge, which is in line with the top edge 11 of the first cut 5.
  • the adhesive label 7 is attached to the laminate material 2 on the side of the first layer 3.
  • the adhesive label 7 is attached to the first layer 3 of the laminate material 2 using an adhesive.
  • the adhesive label 7 is attached to the laminate material 2 by a pressure-sensitive adhesive.
  • the adhesive label 7 is attached to the laminate material 2 such that it covers the first cut 5.
  • the adhesive label 7 is larger than the first region 8, and positioned such that the adhesive label 7 overlaps the edges 9, 10, 11 of the first cut 5, forming an overlapping region 16 in the adhesive label 7 which surrounds the first cut 5 on all sides.
  • the adhesive label 7 includes a pull tab 17.
  • the pull tab 17 extends from a bottom edge 18 of the adhesive label 7, which is adjacent to the bottom edges 9, 13 of the first and second cuts 5, 6.
  • the pull tab 17 may be free from adhesive, or the adhesive may be neutralised, so that a user can grasp the pull tab 17 for opening the wrapper 1 in the manner explained below.
  • FIG. 3 shows the wrapper 1 from the side of the first layer 3 of the laminate material 2.
  • the adhesive label 7 is lifted away from the laminate material 2 and the first and second areas 8, 12 of the laminate material 2 are separated from the remainder of the laminate material 2 along the first and second cut lines 5, 6. In this way, the first and second areas 8, 12 of the laminate material 2 are lifted away from the remainder of the laminate material 2 to form an opening 19.
  • first and second areas 8, 12 overlap, i.e. within the second region 12, the first and second layers 3, 4 remain attached due to the bond between them.
  • the first and second layers 3, 4 of the laminate material 2 are delaminated, i.e. separated.
  • the size of the opening 19 that is created in the laminate material 2 is defined by the second cut 6.
  • the first and second areas 8, 12 of the laminate material 2 form a flap 20 of material. Together with the adhesive label 7, the flap 20 can be lifted to provide the opening 19, and then can be repositioned to close the opening 19.
  • pressure-sensitive adhesive is provided between the first and second layers 3, 4 of the laminate material 2, and also between the adhesive label 7 and the first layer 3 of the laminate material 2. Therefore, when the adhesive label 7 is repositioned over the opening 19 the adhesive label 7 will be re-adhered to the laminate material 2 in the overlapping region 16, and the first and second layers 3, 4 of the laminate material 2 will be re-adhered in the peripheral region 15, where delamination had occurred on opening.
  • single-use adhesive may be provided between the first and second layers 3, 4 of the laminate material 2, and/ or between the adhesive label 7 and the laminate material 2. In this way, the wrapper 1 will only be re-attached on closing where pressure sensitive adhesive is provided. Alternatively, the wrapper 1 may only comprise single-use adhesive, with no pressure sensitive adhesive, and so no part of the wrapper 1 will be re-attached after first opening. In one specific example, single use adhesive is provided between the first and second layers 3, 4 of the laminate material 2, while a pressure sensitive adhesive is provided between the adhesive label 7 and the first layer 3 of the laminate material 2.
  • the pressure sensitive adhesive in the overlapping region 16 can be used to reattach the adhesive label 7 to the laminate material 2 after first opening, but the first and second layers 3, 4 will not be reattached to each other in the peripheral region 15 where delamination had occurred on first opening.
  • the pressure sensitive adhesive between the adhesive label 7 and the laminate material 2 may be patterned.
  • the adhesive coating weight of the pressure sensitive adhesive between the adhesive label 7 and the first region 8 may be increased to provide a stronger bond between the adhesive label 7 and the first region 8. This will prevent the first region 8 from delaminating from the adhesive label 7 during use.
  • the adhesive label 7 may be attached to the laminate material 2 at least partially with permanent adhesive, particularly in the first region 8 of the laminate material 2. This permanent adhesive will prevent the first region 8 from detaching from the adhesive label 7 during use. In other examples, some regions of the laminate material 2 and/ or the adhesive label 7 may be adhesive free, for example to assist the opening and closing movement.
  • FIG. 4 shows another example of a wrapper 1 for forming a wrapped bundle.
  • the second cut 6, formed in the second layer 4 of the laminate material 2 does not extend to the top edge 11 of the first cut 5 as described with reference to FIGS. 1 to 3.
  • the second cut 6 extends from the bottom edge 13 of the second cut 6 in a direction parallel to the opposing side edges 10, of the first cut 5, and then towards the opposing side edges 10 of the first cut 5, intersecting partially along the opposing side edges 10 of the first cut 5.
  • the wrapper 1 is provided with an adhesive label 7 that is applied over the first cut 5 on the first layer 3 of the laminate material 2. Pulling on the pull tab 17 of the adhesive label 7 causes the first and second layers 3, 4 of the laminate material 2 to separate along the first and second cuts 5, 6 respectively, creating an opening.
  • the peripheral region 15 between the first and second cuts 5, 6, which is delaminated on opening the wrapper 1 only extends partially around the opening. Therefore, if a pressure sensitive adhesive is provided between the first and second layers 3, 4, the first and second layers 3, 4 will only be reattached to each other in that peripheral region 15 on reclosing the wrapper 1.
  • the second layer 4 is torn along the line of the first cut 6 in the area above the second cut 6. That is, because the second cut 6 only extends partially along the side edges 10 of the first cut 6, the remainder of the second layer is torn when the adhesive label 7 is pulled. This tear will occur along the line of the first cut 5 because this is the weakest point of the laminate material 2.
  • the first cut 6 extends through the first and second layers 3, 4 in the region above the point where the second cut 6 intersects the side edges 10 of the first cut 5. Therefore, on pulling the adhesive label 7 the first layer 3 is separated along the entire first cut 5, and the second layer 4 is separated along the entire second cut 6 and then along the side edges of the first cut 5 above the second cut 6. In another example, shown in FIG.
  • the first cut 5 in the laminate material 2 is limited to a starting cut disposed proximate to the pull tab 17. That is, the side edges 10 of the first cut 5 extend only a limited distance.
  • the second cut 6 extends from the bottom edge 13 of the second cut 6 in a direction parallel to the opposing side edges 10, of the first cut 5, and then towards the opposing side edges 10 of the first cut 5, intersecting the first cut 5 at the ends 39 of the first cut 5.
  • the second cut 5 comprises further side edges 38 that extend from the ends 39 of the first cut 5 in the same direction as the side edges 10 of the first cut 5. Therefore, in this example, when the pull tab 17 is pulled the second layer 4 is separated along the second cut 6 and the first layer 3 is separated along the first cut 5 and is then torn along the further side edges 38 of the second cut 6.
  • a peripheral region 15 is defined between the first and second cuts 5, 6 proximate to the pull tab 17, in which the first and second layers 3, 4 are delaminated on opening the wrapper 1.
  • first and second cuts 5, 6 in the laminate material 2 and an adhesive label 7 that covers the first cut 5 provide a labyrinth seal through which fluids, such as air or other gasses, or liquids, or vapours have to pass in order to breach the wrapper 1.
  • the arrangement provides a convenient means for quickly and easily opening the wrapper 1 to provide an opening 19 through which the contents can be accessed.
  • a wrapped bundle formed by the wrapper 1 may by provided with a partial vacuum or increased pressure within.
  • the above- described arrangement of the cuts 5, 6 and the adhesive label 7 provide for a strong and durable seal capable of maintaining a pressure differential over a prolonged period of time.
  • FIGS. 6A and 6B show partial cross-sections of the wrappers 1 described with reference to FIGS. 1 to 5 above, having different laminate materials 2.
  • FIG. 6A shows a cross-section of a wrapper 1 with a laminate material 2 having two layers, as specifically described with reference to the examples of FIGS. 1 to 5. That is, the laminate material 2 has a first layer 3 which is bonded to a second layer 4. A first cut 5 is provided in the first layer 3, and a second cut 6 is provided in the second layer 4, the first and second cuts 5, 6 are offset as previously described.
  • FIG. 6A also shows the adhesive label 7, which is applied to the first layer 3 of the laminate material 2. As indicated in FIG. 6A, the previously described peripheral region 15, between the first and second layers 3, 4, is defined by the first and second cuts 5, 6. Also, the overlapping region 16, between the first layer 3 and the adhesive label 7, is defined by the first cut 5 and the bottom edge 18 of the adhesive label 7.
  • the arrangement of the offset first and second cuts 5, 6, as well as the adhesive label 7 covering the first cut 5, provides a labyrinth barrier through which a substance would have to travel to enter or leave a wrapped bundle formed using the wrapper 1. Therefore, the adhesive label 7 and arrangement of cuts 5, 6 provides for a strong and durable seal.
  • FIG. 6B shows an alternative example of a wrapper 1 having a laminate material 2 with a first layer 3, a second layer 4, and a third layer 21.
  • the third layer 21 is disposed between the first and second layers 3, 4, and the first and second layers 3, 4 are bonded to opposing sides of the third layer 21.
  • first layer 3 and the third layer 21 are bonded using a pressure-sensitive adhesive, and the second layer 4 and the third layer 31 are permanently bonded together.
  • the first cut 5 is provided in the first layer 3
  • the second cut 6 is provided in the second layer 4 and the third layer 21. As previously described, the first and second cuts 5, 6 are offset.
  • FIG. 6B also shows the adhesive label 7, which is applied to the first layer 3 of the laminate material 2.
  • the peripheral region 15 is formed between the first and third layers 3, 21 and is defined between the first and second cuts 5, 6. It will be appreciated that in this example the peripheral region 15 can still be used to reattach the first layer 3 to the second layer 4, although the third layer 21 is disposed in between.
  • the overlapping region 16 between the first layer 3 and the adhesive label 7 is defined as between the first cut 5 and the bottom edge 18 of the adhesive label 7.
  • the arrangement of the offset first and second cuts 5, 6, as well as the adhesive label 7 covering the first cut 5 provides a labyrinth barrier through which a substance would have to travel to enter or leave a wrapped bundle formed from the wrapper 1. Therefore, the adhesive label 7 and arrangement of cuts 5, 6 provides for a strong and durable seal.
  • first and third layers 3, 21 are permanently bonded together, and the second and third layers 4, 21 are bonded together using pressure-sensitive adhesive.
  • first cut 5 is provided in the first layer 3 and in the third layer 21, and the second cut 6 is provided in the second layer 4 only.
  • the first and second cuts 5, 6 are offset as previously described.
  • the laminate material 2 may have more than three layers bonded together in a similar manner to that described above, with the first and second cuts 5, 6 each provided in one or more of the layers.
  • Each layer may comprise one or more of a polymer, an orientated polymer, a metal foil, for example an aluminium foil, a metallised polymer, or other similar flexible materials for use as packaging.
  • the layers may be permanently bonded together using a permanent adhesive, that is, an adhesive that strongly bonds the layers together such that the layers do not separate when the wrapper is opened or closed.
  • a permanent adhesive that is, an adhesive that strongly bonds the layers together such that the layers do not separate when the wrapper is opened or closed.
  • the pressure-sensitive adhesive allows layers of the laminate material 2 to be reattached to each other after delamination.
  • the pressure sensitive adhesive is a non- drying, permanently tacky adhesive, such that the pressure sensitive adhesive can be used multiple times to detach and reattach the layers of the laminate material 2 in the peripheral region 15.
  • the laminate material 2 comprises three layers, the inner and outer layers 3, 4 being made of orientated polypropylene (OPP) and the third layer 21, disposed between the inner and outer layers 3, 4, is made of aluminium foil.
  • OPP inner and outer layers 3, 4 have a thickness of between 10 microns and 50 microns.
  • the OPP layers preferably have a thickness of between 10 microns and 30 microns, more preferably approximately 20 microns. This has been found to provide an adequate seal for preventing ingress of fluids through the first and second cuts 5, 6.
  • the OPP inner and outer layers 3, 4 have a thickness of between 30 microns and 50 microns, more preferably approximately 40 microns. This has been found to provide sufficient rigidity in the laminate material 2 for repetitive opening and closing, while limiting material usage.
  • the aluminium foil has a thickness of between 5 microns and 20 microns, preferably between 5 microns and 15 micros, more preferably approximately 9 microns.
  • the first and second cuts 5, 6 can be formed in the laminate material 2 using a mechanical cutter with a limited, pre-determined, cutting depth. That is, the
  • mechanical cutter is adapted to cut through the appropriate layers and not the others in the manner previously described. Such a process is known as die cutting or kiss cutting.
  • the first and second cuts 5, 6 can be formed using lasers.
  • a first laser can be configured to cut the outer layer 3 but not the inner layer 4 and a second laser can be configured to cut the inner layer 4 but not the outer layer 3.
  • Either of the lasers can be configured to also cut the third layer 21. Therefore, the lasers can be configured to cut the layers of the laminate material 2 in any of the ways previously described, in particular with reference to FIGS. 6a and 6b.
  • the laminate material 2 comprises inner and outer layers 3, 4 made of orientated polypropylene (OPP) and a third layer 21 made of metal foil, for example aluminium foil, as illustrated in FIG. 6b.
  • OPP orientated polypropylene
  • a laser can be used to form the first and second cuts 5, 6.
  • a first laser only capable of cutting through OPP, forms the first cut 5 in the outer layer 3 from the side of the outer layer 3.
  • the first laser is not capable of cutting through the aluminium foil third layer 21, so the first cut 5 is limited to the outer layer 3.
  • a second laser capable of cutting through aluminium foil, forms the second cut 6 in the inner layer 4 and third layer 21 from the side of the inner layer 4.
  • the second laser beam passes through the inner layer 4, is incident on the third layer 21 (aluminium foil) which cuts the third layer 21, and some of the energy is reflected back towards the inner layer 4 which causes the inner layer 4 to also be cut. Therefore, the second laser will only form a cut in the third layer 21 and inner layer 4.
  • the first and second lasers can be configured in the above described manner by selecting an appropriate wavelength and power for the material to be cut - in this example orientated polypropylene and/ or aluminium foil. It will be appreciated that other packaging materials are also capable of being cut with lasers, and the above is merely a preferred embodiment.
  • lasers can be configured with an appropriate wavelength and/or power to cut only through a single layer of OPP and not an adjacent layer of OPP. Therefore, laser cutting could also be used to provide the first and second cuts 5, 6 in the two layer laminate material 2 described with reference to FIG. 6a.
  • the first and second cuts 5, 6 in the laminate material 2 may each extend entirely through the relevant layer of the laminate material 2.
  • the cuts 5, 6 may extend only partially through the relevant layer of the laminate material 2, and the remainder of that layer will tear on pulling the pull tab 17 to form the opening.
  • the polypropylene fibres can be orientated in the direction of such a tear to facilitate the tearing action.
  • FIG. 7 shows a wrapped bundle 22 containing cigarettes that has been made by wrapping the wrapper 1 described with reference to any of FIGS. 1 to 6b around a group of cigarettes.
  • the cigarettes are elongate cylindrical articles arranged in a collation and then wrapped in the wrapper 1.
  • the wrapper 1 has been folded about a group of cigarettes with the adhesive label 7 disposed on one end 23.
  • the end 23 of the wrapped bundle 22 having the adhesive label 7 corresponds to the ends of the cigarettes, so that cigarettes can be extracted lengthwise from the wrapped bundle 22 when the adhesive label 7 is pulled to create the opening (19, see FIG. 3).
  • the ends 24 of the wrapper 1 have been folded against the sides of the group of cigarettes. These folded ends 24 can be sealed, for example using an induction sealing process, a heat sealing process or adhesive to provide a sealed wrapped bundle 22 of cigarettes.
  • FIG. 8 shows another example of a wrapped bundle 22 that has been made by wrapping the above described wrapper 1 around a group of cigarettes. As shown, the wrapper 1 has been folded about a group of cigarettes with the adhesive label 7 on one end 23. The end 23 of the wrapped bundle 22 having the adhesive label 7 corresponds to the ends of the cigarettes. Therefore, when the adhesive label 7 is pulled to create the opening (19, see FIG. 3), the cigarettes can be extracted lengthwise from the wrapped bundle 22.
  • the ends 24 of the wrapper 1 have been fin sealed. That is, in the region of the ends 24 of the wrapper 1 the laminate material 2 has been bonded to itself to form a fin seal 26, 27. These fin seals 26, 27 can then be folded against the sides of the wrapped bundle 22.
  • FIG. 9 shows a first schematic example of a process for forming a fin sealed wrapped bundle 22.
  • the wrapper 1 is folded around a group of cigarettes 28 and an inner frame 29 which is provided to support and protect the cigarettes 28 within the wrapped bundle (22, see FIG. 8).
  • the cigarettes 18 are first placed into an inner frame 29, for example by folding the inner frame 29 around the group of cigarettes 28, and then the wrapper 1 can be wrapped around the inner frame 29.
  • Ends 24 of the wrapper are then fin sealed to each other to form a first fin seal 27 that results in a tubular wrapper 1 around the inner frame 29.
  • the ends 24 of the tubular wrapper 1 are then fin sealed together to form second and third fin seals (26, see FIG. 8).
  • the fin sealed wrapped bundle 22 has the first fin seal 27 extending across the rear face 30 of the wrapped bundle 22, opposite to the front face 25 on which the adhesive label 7 is located.
  • the second and third fin seals 26 extend along the opposing side faces 31 of the wrapped bundle 22.
  • the first fin seal 27 may be formed across the end face 32 of the wrapped bundle 22 which is opposite to the end face 23 having the adhesive label 7.
  • the second and third fin seals 26 can then be formed along the opposing side faces 31 of the wrapped bundle 22.
  • first fin seal 27 may be formed across the front face 25 of the wrapped bundle 22, below the adhesive label 7.
  • a fin seal can be formed by pressing parts of the laminate material together and applying heat and/or adhesive to join those parts of the laminate material together.
  • the heat may melt and/or fuse components of the laminate material together.
  • a fin sealed wrapped bundle 22, as described above, will provide a strong and durable hermetic seal capable of holding a pressure differential.
  • the interior of the wrapped bundle 22 may be provided with a pressure above or below atmospheric pressure.
  • An increased pressure within the wrapped bundle 22 can be provided by adding air, or some other gas, or liquid, to the interior of the wrapped bundle 22 prior to forming the final seal.
  • the pressure within the wrapped bundle 22 is higher than atmospheric pressure, i.e. greater than 1 bar. In some examples, the pressure within the wrapped bundle 22 may be between 1 bar and 2 bar, more specifically between 1.25 bar and 1.75 bar, preferably about 1.5 bar.
  • a reduced pressure for example a partial vacuum
  • a reduced pressure can be provided to the interior of the wrapped bundle 22 by extracting air prior to forming the final seal, for example by carrying out the wrapping and sealing process described with reference to FIG. 9 or FIG. 10 in a low pressure environment.
  • the pressure in the interior of the wrapped bundle 22 is less than 500 millibar, for example between 40 millibar and 300 millibar.
  • the pressure in the interior of the wrapped bundle 22 is less than 150 millibar, preferably about 80 millibar.
  • the partial vacuum within the interior of the wrapped bundle 22 may be any value less than 1 bar.
  • the wrapped bundle 22 may be provided with a one-way valve adapted to permit flow of air in one direction and not the other.
  • the valve on the wrapped bundle 22 can then be provided with either a high pressure source or a low pressure source to move air into or out of the wrapped bundle 22.
  • the interior of the wrapped bundle 22 may be provided with a modified atmosphere, for example a gas other than air, for example an inert gas.
  • a modified atmosphere for example a gas other than air, for example an inert gas.
  • other substances may be added to the interior of the pack as a liquid and allowed to evaporate within the wrapped bundle 22, for example to increase the pressure within the wrapped bundle 22.
  • the adhesive label 7 may be provided to increase the rigidity of the cover flap formed from the adhesive label 7 and the first and second areas 8, 12 of the laminate material 2.
  • the adhesive label 7 may be provided to increase the rigidity and prevent fold lines or deformations that may prevent the first and second areas 8, 12 being replaced over the opening 19.
  • the adhesive label 7 need not cover the first cut 5 and need not comprise any pressure-sensitive adhesive.
  • the various examples of wrapped bundles 22 described with reference to FIGS. 1 to 10 may be received within a hinged-lid pack 33.
  • the wrapped bundle 22 may be provided as packaging itself, without any further pack or lid.
  • the hinged-lid pack 33 has a base 34 having a parallelepiped form and which is adapted to receive the wrapped bundle 22 such that the wrapped bundle 22 protrudes from an open end 35 of the base 34.
  • the adhesive label 7, in particular the pull tab 17, is accessible for opening the wrapped bundle 22 and providing access to the cigarettes within.
  • a lid 36 is connected to the base 34 about a hinge 37.
  • the lid 36 is pivotable between a closed position, where the lid 36 covers the wrapped bundle 22, and an open position, where the wrapped bundle 22 is exposed.
  • FIG. 11 shows the lid 36 in the open position, such that a user can grasp the pull tab 17 on the adhesive label 7 and pull to form the opening (19, see FIG. 3) in the wrapper 1 for extracting cigarettes.
  • the pull tab 17, or another part of the adhesive label 7 may be attached to the lid 36 so that opening and closing the lid 36 simultaneously opens and closes the wrapped bundle 22 within the pack 33.
  • the outside face of the pull tab 17 is attached to an inside face 40 of the lid 36.
  • the pull tab 17 is pulled which simultaneously creates the opening 19 in the wrapped bundle 22.
  • the adhesive label 7 and laminate material 2 will be repositioned, closing the opening 19. If pressure sensitive adhesive is provided in the laminate material 2 and/or on the adhesive label 7 then the opening 19 may be resealed.
  • the pull tab 17 is folded back against the adhesive label 17 and the underside of the pull tab 17 is adhered to the inside face 40 of the lid 36. This results in a similar simultaneous opening as described with reference to FIG. 12.
  • wrapper 1 including the wrapped bundle 22 and hinged-lid pack 33, may be used to package tobacco industry products other than cigarettes.
  • a tobacco industry product refers to any item made in, or sold by the tobacco industry, typically including a) cigarettes, cigarillos, cigars, tobacco for pipes or for roll-your-own cigarettes, (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes); b) non-smoking products incorporating tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes such as snuff, snus, hard tobacco, and heat-not-burn products; and c) other nicotine-delivery systems such as inhalers, aerosol generation devices including e- cigarettes, lozenges and gum.
  • This list is not intended to be exclusive, but merely illustrates a range of products which are made and sold in the tobacco industry.

Abstract

L'invention concerne une enveloppe pour des produits de l'industrie du tabac. L'enveloppe comprend: un stratifié comprenant des première et seconde couches; une première découpe dans la première couche qui définit une région dans la première couche; une seconde découpe dans la seconde couche qui définit une région dans la seconde couche, et une étiquette collée sur le stratifié. Les première et seconde découpes sont configurées de sorte que, lorsque l'étiquette est soulevée, les première et seconde couches se décollent dans une région périphérique entre les première et seconde découpes et les régions des première et seconde couches soient soulevées ensemble avec ladite étiquette pour créer une ouverture dans le stratifié défini par la seconde découpe.
PCT/GB2015/053648 2014-12-05 2015-11-27 Enveloppe pour produits de l'industrie du tabac WO2016087830A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1421705.3A GB201421705D0 (en) 2014-12-05 2014-12-05 Wrapper for tobacco industry products
GB1421705.3 2014-12-05

Publications (1)

Publication Number Publication Date
WO2016087830A1 true WO2016087830A1 (fr) 2016-06-09

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AR (1) AR102933A1 (fr)
GB (1) GB201421705D0 (fr)
TW (1) TWI557039B (fr)
WO (1) WO2016087830A1 (fr)

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EP3388367A1 (fr) * 2017-04-10 2018-10-17 JT International SA Récipient pour articles à fumer
WO2020141296A1 (fr) * 2018-12-31 2020-07-09 British American Tobacco (Investments) Limited Stratifié pour farde enveloppée de produits de l'industrie du tabac

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EP1449789A1 (fr) * 2003-02-19 2004-08-25 Alcan Technology & Management Ltd. Conteneur d'emballage comprenant une feuille d'emballage ayant un système intégré d'ouverture et de refermeture
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EP3388367A1 (fr) * 2017-04-10 2018-10-17 JT International SA Récipient pour articles à fumer
WO2018189075A1 (fr) * 2017-04-10 2018-10-18 Jt International Sa Contenant pour articles à fumer
WO2018189074A1 (fr) * 2017-04-10 2018-10-18 Jt International Sa Récipient pour articles à fumer
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WO2020141296A1 (fr) * 2018-12-31 2020-07-09 British American Tobacco (Investments) Limited Stratifié pour farde enveloppée de produits de l'industrie du tabac
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JP7216205B2 (ja) 2018-12-31 2023-01-31 ブリティッシュ アメリカン タバコ （インヴェストメンツ） リミテッド タバコ産業製品の包装された束用の積層体

Also Published As

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GB201421705D0 (en) 2015-01-21
TW201632432A (zh) 2016-09-16
AR102933A1 (es) 2017-04-05
TWI557039B (zh) 2016-11-11

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