CN110177746A - Packaging material for tobacco business product - Google Patents

Abstract

Disclose a kind of packaging material for one group of tobacco business product.The packaging material includes: barrier material (3)；And the cutting line (9) in the barrier material, the cutting line are used to form tab, the tab, which is arranged to, to be pulled, and is propagated so that tearing mouth from the end of the cutting line to be formed in the barrier material and extract opening (19).The barrier material includes atenuator region (20), the atenuator region (20) has the width bigger than the width of the cutting line, and the atenuator region extends across the end of the cutting line along a direction, to control from the direction for tearing mouth described in the propagation of the end of the cutting line.

Description

Packaging materials for tobacco industry products

technical field

The present invention relates to a wrapper for a group of tobacco industry products, in particular but not exclusively to a wrapper for packaging smoking articles such as cigarettes. The invention also relates to a bundle comprising a wrapper according to the invention, and to a tobacco industry product package comprising said bundle.

Background technique

Cigarette packs are known to have a reclosable label provided on the bundle of cigarettes. Pulling the tab exposes an extraction opening for extracting cigarettes from the bundle. The label includes an area of pressure sensitive adhesive that allows the label to be repositioned to close the withdrawal opening after first opening.

Contents of the invention

According to an embodiment of the present invention, a packaging material for a group of tobacco industry products is provided, which includes:

barrier material;

a cut line in the barrier material, the cut line forming a tab arranged to be pulled such that a tear opening propagates from the end of the cut line to form a tab in the barrier material Form an extraction opening in the middle;

Wherein the barrier material includes a weakened region having a width greater than the width of the cut line, and the weakened region extends across the end of the cut line in a direction to control movement from the cut line. The direction of the tear opening from which the end of the cutting line propagates.

The weakened area is preferably configured to guide a tear opening propagating from the end of said cutting line.

The barrier material may comprise a major surface and an end surface separated from the major surface by a fold line. A cutting line may be formed in the main surface such that when the tab is pulled, the tear opening is in the main surface from the end of the cutting line toward the main surface and the end surface. Spread between the fold lines.

Preferably, a weakened region extends from said main surface into said end surface beyond said fold line.

The weakened region may comprise a plurality of parallel weakened lines in the barrier material extending in a direction away from the end portion of the cut line towards the end surface, the weakened lines parallel to the direct tear An opening propagation path, the direct tear opening propagation path being defined as the shortest path extending from the end of the cutting line to the end surface.

Cutting lines may extend between said weakening lines.

In another embodiment, the weakening line may be spaced apart from the end of the cutting line in the direction of the direct tear opening propagation path.

In any embodiments employing parallel lines of weakness, one of said parallel lines of weakness may extend along said direct tear opening propagation path.

In another embodiment, the weakened region is configured to redirect the tear opening propagating from the end of said cutting line towards the direct tear opening propagation path.

In such an embodiment, the weakened region may include first and second convergent lines of weakness that intersect on the direct tear opening propagation path.

In some embodiments, the ends of the cutting lines extend between the first and second converging lines of weakness.

Preferably, the third line of weakness extends along the propagation path of the direct tear opening from where the first line of weakness and the second line of weakness intersect.

In a preferred embodiment, said line of weakness is a score line extending partly through the thickness of said barrier material. Most preferably, the weakened lines are laser cut score lines.

The cutting line preferably extends completely through the thickness of the barrier material.

In a preferred embodiment, there is a cover flap on the barrier material extending above the cut line, the cover flap being adhered to the barrier material such that lifting the cover flap pulls the tab so that the tear opening propagates from the end of the cut line.

Preferably at least a peripheral region of said cover sheet extending beyond said cut line is adhered to said barrier material by a pressure sensitive releasable adhesive.

The cover sheet may be adhered to an outer surface of the barrier material, wherein a weakened area is formed on the outer surface. Alternatively, the weakened area may be formed on the inner surface, ie the surface of the barrier material facing the smoking article.

According to another aspect of the invention there is provided a bundle comprising a wrapping material of the invention which has been wrapped around a group of tobacco industry products.

According to another aspect of the invention there is provided a tobacco industry product package comprising a bundle of the invention and a container having a base and a lid hingedly attached to the base, the bundle being contained in the in the base.

Description of drawings

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

Figure 1 shows a perspective view of a wrapped bundle of tobacco industry products with the labels in closed position;

Figure 2 is a perspective view of the bundle of Figure 1 with the adhesive tab in an open position;

Figure 3A shows cut lines formed in the barrier layer of Figures 1 and 2, together with weakened areas, according to a first embodiment of the invention;

Figure 3B shows a modification of the first embodiment shown in Figure 3A;

Figure 3C shows a modified embodiment of Figure 3A in which the weakened region extends below the end of the cut line in the major surface of the wrapping bale;

Figure 3D shows a modified embodiment of Figure 3B in which the weakened region extends below the end of the cut line and the score line on the direct tear opening propagation path extends from the end of the cut line;

Figure 4 shows cut lines formed in the barrier layer of Figures 1 and 2, together with weakened areas, according to a second embodiment of the invention;

Figure 5 shows the inner frame of a wrapped bundle for tobacco industry products;

Fig. 6 shows a schematic diagram of a process for making a wrapped bundle of tobacco industry products according to an embodiment of the present invention;

Figure 7 shows a wrapped bundle of tobacco industry products with fin seals according to an embodiment of the invention;

Figure 8 shows an alternative schematic diagram of a process for making wrapped bundles of tobacco industry products according to an embodiment of the invention;

Figure 9 shows a package containing a bundle of tobacco industry products of any of the previous figures;

Figure 10 shows a first example of a package containing wrapped bundles of tobacco industry products according to an embodiment of the invention, wherein a portion of the barrier material is attached to the cover; and,

Figure 11 shows a second example of a package containing wrapped bundles of tobacco industry products according to an embodiment of the invention, wherein a portion of the barrier material is attached to the lid.

Detailed ways

Figure 1 shows a wrapped bundle 1 of tobacco industry products, such as smoking articles. In this example, the tobacco industry product is cigarette 2 .

The bundle 1 comprises a flexible and tearable barrier material 3 wrapped around a group of cigarettes 2 , for example twenty cigarettes as shown. The cigarettes 2 are arranged in rows such that the overall shape of the bundle 1 is substantially cuboid or parallelepiped.

The barrier material 3 comprises a main surface 4 , a rear surface 5 , opposite side surfaces 6 , 7 and an upper end surface 8 . The bundle 1 as shown in the figures has square edges, but it is understood that the edges could also be rounded or chamfered.

As shown in FIG. 1 , the main surface 4 is provided with an initial cutout 9 . The main surface 4 is at least partially cut through in a "U" shape. The initial cut 9 comprises: a first or central cutting line 10 extending transversely across the main surface 4 in a direction between the opposite side surfaces 6, 7; and second and third cutting lines 11, 12 extending from the second The end of a cutting line 10 extends for a short distance in the longitudinal direction extending towards the upper end surface 8 of the barrier material 3 . The initial cutout 9 defines a tab 13 formed by the first, second and third cutouts 10 , 11 , 12 .

The starting cut 9 may comprise other shapes. For example, the starting cut 9 may comprise or be formed by a curved shape.

The adhesive label 14 is adhered to the barrier layer 3 such that it covers and seals the initiation cut 9 .

The adhesive label 14 shown in FIG. 1 extends from the main surface 4 of the barrier material 3 , past the front edge 15 and onto the upper end surface 8 of the barrier material 3 . The adhesive tab 14 may also extend beyond the rear end edge 16 and to the rear surface 5 of the barrier material 3 as shown in FIG. 1 .

Also shown in FIG. 1 , the adhesive label 14 includes a pull tab 17 . When the user pulls the tab 17 in a direction away from the main surface 4 , the adhesive label 14 is peeled from the front surface 4 and the tab 13 defined by the initial cut 9 is pulled.

When the tab 13 is pulled in response to pulling the tab 17 , a tear opening propagates through the barrier material 3 of the main surface 4 starting from the end 11 a , 12 a of each of the second and third cuts 11 , 12 . Ideally, the tear opening propagates towards the upper end surface 8 of the barrier material 3 along the direct tear opening propagation paths 18 (indicated by dashed lines in FIG. 1 ), which are the second and third Linear extension of the cut. The direct tear opening propagation path 18 represents the end 11a, 12a of each of the second and third cutouts 11, 12 in the main surface 4 and the leading edge 15 between the main surface 4 and the upper end surface 8 the shortest route between. In particular, when a force is applied to the tab 17 , the tear opening propagates in the main surface 4 of the barrier material 3 , beyond the leading edge 15 and across the end surface 8 . The front edge 15 is formed by the fold line between the main surface 4 and the end surface 8 .

Depending on the placement and extent of the adhesive label 14 and the extent to which the user pulls the pull tab 17, the tear opening can propagate to a point on the end surface 8, to the rear end edge 16, or beyond the rear end edge 16 and to the bundle of packages. 1 on the rear surface 5 .

The above-mentioned application of pulling force to the adhesive label 14 and the consequent tearing of the barrier material 3 forms the extraction opening 19 as shown in FIG. 2 . The extraction opening 19 extends from the main surface 4 , beyond the front edge 15 and into the end surface 9 of the barrier material 3 . When the adhesive label 14 is in the position shown in FIG. 2 , the cigarettes 2 can be removed from the bundle 1 via the extraction opening 19 .

In an alternative embodiment, the initial cut 9 comprises a weakened line instead of a through cut as described above. In this way, applying a pulling force to the tab 17 will cause the line of weakness to tear and form an initial cut from which the barrier material 3 will tear to form the extraction opening 19 .

As indicated above, the direct tear opening propagation path 18 in the main surface 4 extends substantially in a longitudinal direction towards the upper end surface 8 from each end 11a, 12a of the second and third cutting lines 11, 12 to The shortest linear path of the leading edge 15 . However, depending on a slight change in the direction in which pulling force may be applied to the tab 17, the tear opening may travel from the second and third along a tear opening propagation path that does not exactly correspond or align with the direct tear opening propagation path 18. Each end 11a, 12a of the cutting line 11, 12 starts to propagate.

According to an embodiment of the invention, in order to provide control over the direction along which the tear opening propagates from each end 11a, 12a of the second and third cut lines 11, 12 of the initial cut 9, the barrier material 3 is provided with A weakened area 20 (shown only in outline in FIGS. 1 and 2 ) extends in a direction across the ends 11a, 12a of the cutting lines 11, 12 in the main surface 4 and serves to control tearing. The direction in which openings propagate from each end 11a, 12a of the second and third cutting lines 11, 12, such that tear openings propagating away from the direct tear opening propagation path 18 are directed back to the direct tear opening propagation Path 18. Alternatively, the weakened region 20 may prevent the tear opening from deviating further away from the direct tear opening propagation path 18 .

The weakened region 20 extends transversely across the main surface 4 of the barrier layer such that it bridges the direct tear opening propagation path 18, i.e. the weakened region 20 extends in a lateral direction across the barrier in a direction between the opposing side surfaces 6,7. The main surface 4 of the material 3 . The width of each weakened area 20 is greater than the width of each of the second and third cutting lines 11 , 12 . In particular, the overall width of the weakened area 20 in the direction extending between the opposite side surfaces 6, 7 is at least sufficient to ensure that the end portions 11a, 12a of the second and third cutting lines 11, 12 are The propagating tear opening will always intersect the weakened area 20 and thus be guided, even when the tear opening propagating from each end 11a, 12a of the second and third cutting lines 11, 12 is not along the direct tear opening. The same is true for the propagation of the open propagation path 18 .

A separate weakened region 20 extends across the ends 11a, 12a of each of the second and third cutting lines, as shown in FIGS. 1 and 2 . However, it is contemplated that a single weakened region 20 may extend over the main surface 4 of the barrier layer and span the ends 11a, 12a of both the second and third cutting lines 11, 12.

The weakened area 20 is spaced apart from each end 11a, 12a of the second and third cutting lines 11, 12 such that a tear opening propagating from each end of the second and third cutting lines 11, 12 will The opening intersects or crosses the weakened area 20 after the opening has been initiated. However, in some embodiments, the weakened region 20 may be positioned such that once the tear opening has been initiated, the direction along which the tear opening propagates from each end of the second and third cutting lines is weakened. Direct influence and control of Area 20. For example, the weakened region 20 may extend above or below the end 11 a , 12 a of the cutting line 11 , 12 and said weakened region may extend directly from the end 11 a , 12 a of the cutting line 11 , 12 .

As shown in FIGS. 1 and 2 , the weakened region 20 may extend from the main surface 4 of the barrier layer, beyond the front end edge 15 and across the upper end surface 8 to the rear end edge 16 . However, the weakened region 20 may extend only partially across the upper end surface 8 , or may terminate in the main surface 4 before reaching the front edge 15 . Preferably, the weakened area 20 extends such that the tear opening will be guided by the weakened area 20 over its entire length.

In a preferred embodiment, the barrier layer is provided with a weakened area 20 on its inner surface, ie its surface facing the smoking article. However, the weakened area 20 may also be formed on the outer surface facing the adhesive label 14 .

Figure 3A shows in more detail the cutting line 9 and part of the weakened area 20 according to the first embodiment of the invention. In particular, the weakened region 20 comprises a series of spaced apart parallel score lines 21 in the barrier material, each of the parallel score lines 21 extending parallel to the direct tear opening propagation path 18 such that if from the cut line 11, If the tear opening propagated by the ends 11a, 12a of 12 deviates from the direct tear opening propagation path 18 extending between the two score lines 21 , the tear opening will intersect one of the score lines 21 . Since each score line 21 presents a weakening in the major surface 4 of the barrier material 3, it forms a path of least resistance such that further pulling on the tab 13 will cause the tear opening to follow the already propagated tear opening. Intersecting score lines 21 propagate. Thus, the further propagation of the tear opening is guided by the score line 21 and prevents any further deviation of the tear opening from the direct tear opening propagation path 18 since the scoring line 21 is parallel to the direct tear opening propagation path 18 .

In an alternative arrangement as shown in FIG. 3B , one of the score lines 21 may correspond and align with the direct tear opening propagation path 18 such that if the tear opening initially passes from the second and third cut lines 11 If the ends 11a, 12a of , 12 propagate along the direct tear opening propagation path 18, it will be guided by the score line 21 aligned with the direct tear opening propagation path 18, so that the tear opening is prevented from deviating from the direct tear opening Propagation path 18. Tearing along the direct tear opening propagation path 18 is also facilitated due to the score line 21 aligned with the direct tear opening propagation path 18 .

In the modified embodiment of FIG. 3A shown in FIG. 3C , the score line 21 extends below the ends 11 a, 12 a of the cut lines 11 , 12 such that the score line 21 and the cut lines 11 , 12 extend across the barrier material. overlap in the direction of the surface. Similarly, FIG. 3D shows a modified embodiment of FIG. 3B in which the score line 21 extends below the ends 11a, 12a of the cut lines 11, 12 and makes a score line on the direct tear opening propagation path 18 The scoring lines extend directly from the ends 11 a , 12 a of the cutting lines 11 , 12 . In either embodiment, it is also understood that the scoring lines may be aligned with the ends 11a, 12a of the cutting lines rather than overlapping the ends 11a, 12a of the cutting lines 11,12.

In another embodiment as shown in FIG. 4 , the weakened area 20 comprises score lines which together form an inverted Y-shaped pattern in the main surface 4 of the barrier material 3 . More specifically, the weakened region 20 includes a first score line 22 and a second score line 23 towards each other across the weakened region 20 and along a direction away from the cut lines 11 , 12 . The directions of the end surfaces 9 converge. The first score line 22 and the second score line 23 intersect on the direct tear opening propagation path 18 . The third line of weakening 24 extends from the point where the first scoring line 22 and the second scoring line 23 intersect on the direct tear opening propagation path 24 in a direction away from the second and third cutting lines 11 , 12 towards the end surface 9 . In a similar manner to the previous embodiment, the ends 22a, 23a of the first scoring line 22 and the second scoring line 23 may be spaced apart from the ends 11a, 12a of the cutting line 9 in the direction of the direct tear opening propagation path 18 open. Alternatively, the ends 22a, 23a may be aligned with, or extend below, the ends 11a, 12a so as to overlap in a direction extending across the surface of the barrier layer.

It will be appreciated that the weakened area provided by the first and second scoring lines 20, 23 has a width greater than the width of the cutting lines, ie the distance between the ends 22a, 23a of the scoring lines 22, 23 Much larger than the width of the cutting lines 11,12. Since the mouth of the converging score line is open in a direction facing the end 11a, 12a of the cutting line 11, 12, it extends across the end of said cutting line and controls the distance from the end 11a, 12a of the cutting line 11, 12. The direction of the propagating tear opening, even if the tear opening does not follow the course of the direct tear opening propagation path 18.

When the tear opening propagates from each end of the second cut line 11 and the third cut line 12 in a direction different from that along the direct tear opening propagation path 18, it will merge with the first score line 22 and the second score line 22. One of the score lines 23 crosses. As the tab 13 continues to be pulled, the tear opening is guided by the intersecting score lines 22, 23 (which form a path of least resistance) in a direction towards the direct tear opening propagation path 18 until it is at the first score line. 22 and the second score line 23 meet each other at the point where the direct tear opening propagation path is reached. Once the tear opening has reached this point, further pulling on the tab 13 causes the tear opening to propagate through the third score line 24 along the immediate tear opening propagation path 18, which forms another path of least resistance to be followed by the tear opening. . Therefore, this embodiment has the advantage that the tear opening that deviates away from the direct tear opening propagation path 18 is guided along the direction back to the direct tear opening propagation path 18, and then the tear opening is guided along the direct tear opening propagation path 18. tear open.

In a modified embodiment, the third score line 24 may be omitted so that the tear opening is guided to the point where the first score line 22 and the second score line 23 intersect on the direct tear opening propagation path 18 . When the tab 13 is pulled further, the tear opening then continues to propagate past this point without further guidance.

It is to be understood that, in the embodiments described above, the initial cut 9 is preferably a through cut in the main surface 4 of the barrier material 3 . However, it may be a weakened line formed by scoring or partially cutting the barrier material along the initial cut 9 .

The adhesive label 14 may be at least partially adhered to the barrier material 3 by means of a pressure sensitive adhesive. In particular, as shown in FIGS. 1 and 2 , the edges of the adhesive label 14 deviate from the cutting lines 10 , 11 , 12 of the starting cut 9 and thus from the barrier material 3 after the first opening of the bundle 1 The edge of the extraction opening 19 in.

Thus, the label 14 comprises an overlapping region 26 surrounding the extraction opening 19 . This overlapping area 26 of the adhesive label 14 may be provided with a pressure sensitive adhesive coating so that the adhesive label 14 can be repositioned over the withdrawal opening 19 so that the pressure sensitive adhesive will re-adhere to the barrier material 3 And keep the adhesive label 14 in place over the extraction opening 19 .

The underside surface of the adhesive label 14 may be completely coated with pressure sensitive adhesive, except for the pressure sensitive adhesive in the overlapping area 26, or several areas of the underside surface may be coated with a permanent adhesive. with or without adhesive.

The tear-away section 27 of the barrier material 3 which has been separated from the rest of the barrier material 3 to form the extraction opening 19 remains adhered to the adhesive label 14 as shown in FIG. 2 .

The tear-away section 27 may be attached to the adhesive label 14 by a pressure sensitive adhesive or by a permanent adhesive area disposed between the tear-away section 27 and the adhesive label 14 . If the tear-away section 27 is attached to the adhesive label 14 by a pressure sensitive adhesive, the pressure-sensitive adhesive may have an increased coat weight in the area of the tear-away section 27 to prevent tearing Section 27 separates from adhesive label 14 during use. The strength of the adhesive adhering the label 14 to the tear section 27 is such that the barrier layer 3 will tear. The separation of the tear section 27 from the adhesive label 14 is prevented.

The adhesive label 14 and the tear-off section 27 of the barrier material 3 thus form a reusable flap 28 for closing the extraction opening 19 after first opening. The pressure sensitive adhesive on the overlapping area 26 of the adhesive label 14 is used to reattach the cover sheet 28 and barrier material 3 .

In another embodiment, the adhesive label 14 is provided with a disposable adhesive in the overlapping area 26 so that the cover sheet 28 can be repositioned over the extraction opening 19, but the adhesive label 14 will not be re-adhered to the Barrier material3.

A portion of the adhesive label 14 may be permanently adhered to the barrier material 3 such that the flap 28 remains on the bundle 1 and cannot be completely removed. In other embodiments, the flap 28 can be completely removed from the bundle 1 upon opening by using a single-use adhesive on the entire adhesive label 14, or by providing a tear line through the adhesive label 14. remove.

In combination with the adhesive label 14 covering the start cut 9 , the front face 5 , the end face 9 and the rear face 5 , the bundle 1 is hermetically closed until first opening by pulling the tab 17 .

FIG. 5 shows an inner frame 30 holding cigarettes 2 (see FIG. 2 ) and wrapped by barrier material 3 to form the wrapped bundle 1 shown in FIGS. 1 and 2 . In other words, the shown inner frame 30 can be positioned between the cigarette 2 and the barrier material 3 .

The inner frame 30 comprises a front wall 31, a rear wall 32, opposite side walls 33, 34, a bottom wall 35 and a top wall 36, once the inner frame 30 is wrapped in the barrier material 3, the front wall 31, the rear wall 32, the opposite side walls The walls 33 , 34 , bottom wall 35 and top wall 36 then correspond to the front face 4 , the rear face 5 , the opposite side faces 6 , 7 and the end faces 8 , 9 of the bundle 1 . The inner frame 30 also includes an aperture 37 formed in the end wall 36 and the front wall 31 , which after the first opening of the bundle 1 aligns with the extraction opening 19 described above, as shown in FIG. 2 . of.

In this example, the aperture 37 in the inner frame 30 extends partially across the top wall 36 and the front wall 31 of the inner frame 30 . Thus, when the extraction opening 19 is formed, the extraction opening 19 is aligned with the aperture 37 in the inner frame 30 .

The inner frame 30 provides additional strength and supports the cigarettes 19 . Furthermore, the inner frame 30 helps to protect the cigarettes 2 from the crushing force of atmospheric pressure acting on the outside of the wrapped bundle 1 if the wrapped bundle 1 is provided with a reduced internal pressure (eg partial vacuum).

In some examples, the aperture 37 in the inner frame 30 is sized and positioned such that, after the extraction opening 19 is formed in the barrier material 3 by pulling the adhesive tab 17, at least some edges of the aperture 37 are located in the extraction area. Inside the opening 19.

The unbroken part of the barrier material 3 preferably comprises a polymer, such as polypropylene. In this case the fibers of the polymer material can be oriented and the barrier material 3 is arranged such that the fibers are oriented in the direction of the desired tear line. Thus, when the adhesive tab 14 is pulled to form the extraction opening 19, the polymer material will tear more easily and neatly. Otherwise, the polymer may stretch and deform as it is torn, causing the extraction opening 19 to have uneven edges, and the adhesive label 14 may not seal easily over such edges.

The barrier material 3 may be cut or weakened by mechanical means such as a rotary cutter with a fixed blade depth. Alternatively, the barrier material 3 may be cut by using a laser with a preselected power and/or wavelength such that the laser cuts through only a desired portion of the layer of barrier material 3 .

The barrier material 3 may comprise a polymer (eg polypropylene), metal foil, metallized film (eg metallized polymer) or any other flexible material suitable for packaging.

In a preferred example, the barrier material 3 comprises a three-layer laminate having an outer layer of oriented polypropylene and a middle layer of metal foil, eg aluminum foil.

As described hereinafter, to form the bundle 1, the barrier material 3 is wrapped around a group of cigarettes 19 and hermetically closed. The cigarettes 19 may first be placed within the inner frame 30 to support and protect the cigarettes 19 and the barrier material 3 may then be wrapped around the inner frame 30 and the group of cigarettes 19 .

In one example, the edges of the barrier material 3 may be folded against the sides of the contents of the bundle 1 (eg, the inner frame 30) to form overlapping flaps that are sealed to each other, eg, by using adhesives, heat sealing, or ultrasonic welding. .

In another example shown in Figure 6, the barrier material 3 may be folded around the inner frame 30 and the ends of the barrier material 3 may be fin sealed.

In particular, the cigarettes 19 may be placed in the inner frame 30, for example by folding the inner frame 30 around a set of cigarettes 19, and the barrier material 3 may then be wrapped around the inner frame 30, as shown.

Firstly, the edges of the barrier material 3 may be fin-sealed to each other to form a first fin seal 45 , which means that the barrier material 3 is tubular around the inner frame 30 . The ends of the tubular barrier material 3 may then also be fin sealed together to form second and third fin seals 46 , 47 as shown in FIG. 6 . In this example, the fin-sealed bale 1 shown in FIG. Extended second and third fin seals 46,47.

In another example, shown schematically in FIG. 8 , a first fin seal 45 may be formed across the end surface 8 of the bundle 1 opposite the end surface 9 with the adhesive label 14 . Second and third fin seals 46 , 47 may then be formed along opposing side surfaces 6 , 7 of the bundle 1 .

In an alternative example, a first fin seal 45 may be formed across the front surface 4 of the bundle 1 beneath the adhesive label 14 .

As shown in FIG. 7 , the fin seals 45 , 46 , 47 may be folded flat against the surface of the bundle 1 .

The fin seal may be formed by pressing portions of barrier material 3 together and applying heat and/or adhesive to join the portions of barrier material 3 together. The heat may melt and/or fuse parts of the barrier material 3 together.

A fin-sealed bundle 1 as described above will provide a strong airtight seal capable of maintaining a pressure differential. For example, the interior of the bundle may be set at a pressure above or below atmospheric pressure.

The increased pressure inside the bundle 1 may be provided by adding air or some other gas or liquid to the inside of the bundle 1 before forming the final seal. A reduced pressure (such as a partial vacuum) may be provided to the interior of the wrapped bundle 1 by extracting air prior to forming the final seal, for example by performing the wrapping and wrapping described with reference to FIG. 6 or FIG. 8 in a low pressure environment. achieved by the sealing process.

Alternatively, the bundle 1 may be provided with a one-way valve adapted to allow air to flow in one direction but not the other. The valves on the bale 1 may then be provided with a high or low pressure source to move air into or out of the bale 1 .

Alternatively, the inside of the bundle 1 may be provided with a gas other than air, for example an inert gas. In addition, other substances can be added to the inside of the package as a liquid and allowed to evaporate inside the bundle 1 , for example to increase the pressure inside the bundle 1 .

As shown in Figures 9 and 10, various examples of the bundle 1 of wraps 1 described with reference to Figures 1 to 8 may be contained within a hinged lid container 48 to provide a pack of cigarettes.

Alternatively, the parcel bundle 1 itself may be provided as a package without any other packaging outer layer or cover.

As shown in FIG. 9 , the hinged-lid pack 48 has a base portion 49 having a parallelepiped form and which is adapted to accommodate a bundle of packages 1 such that the bundle of packages 1 protrudes from the base portion 49 . In this position, the adhesive tab 14, in particular the pull tab 17, is accessible to open the bundle 1 and gain access to the cigarettes therein.

Lid 50 is hingedly connected to base portion 49 about hinge 51 . The cover 50 is pivotable between a closed position in which the cover 50 covers the bundle 1 of packages and an open position in which the bundle 1 is exposed. Figure 9 shows the cover 50 in an open position so that a user can grasp the tab 17 on the adhesive label 14 and pull to tear the barrier material 3 and create the extraction opening.

In other embodiments as shown in FIGS. 10 and 11 , a portion of the adhesive label 14 , such as the pull tab 17 , is attached to the inner surface 52 of the cover 50 such that the adhesive label 14 is opened when the cover 50 is opened. When the cover 50 is closed, it is raised to provide the extraction opening, and when the cover 50 is closed, it is lowered to cover the extraction opening.

The outer surface of the pull tab 17 may be attached directly to the inner surface 52 of the lid front wall 53 as shown in FIG. 10 . Alternatively, the pull tab 17 may be folded back and then attached to the inner surface 52 of the lid front wall 53 as shown in FIG. 11 .

In the embodiment of FIGS. 10 and 11 , attaching the pull tab 17 to the lid 50 has the advantage of pulling the adhesive tab 14 evenly and smoothly when the lid 50 is first opened, which can help to control the barrier material. 3 in the tear opening.

The bundle 1 may be provided with an inner frame 55 positioned between the smoking articles 2 and the barrier material to provide further rigidity to the bundle 1 and to provide a reaction surface to allow the adhesive label 14 to be pressed down back into the extraction opening superior.

As used herein, the term "pressure sensitive adhesive" means an adhesive that can be reused a number of times. That is, the adhesive is permanently tacky so that the two components can be repeatedly separated and reattached.

As used herein, the term "permanent adhesive" means an adhesive that is intended to hold two components together so strongly that they will not separate during normal use.

As used herein, the term "tobacco industry product" is understood to include smoking articles, including: combustible smoking articles such as cigarettes, cigarillos, cigars, cigarettes for pipes or for hand-rolled cigarettes Tobacco (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smokeable materials); electronic smoking articles, such as electronic cigarettes; heating devices that release compounds from a matrix material without combustion , such as tobacco heating products; and hybrid systems for generating aerosols from combinations of matrix materials, for example comprising liquid or gel or solid matrices.

In one embodiment the tobacco industry product is a smoking article for combustion selected from the group comprising cigarettes, cigarillos and cigars.

In one embodiment, the tobacco industry product is a non-combustible smoking article.

In one embodiment, the tobacco industry product is a heating device that releases the compound by heating the matrix material without burning the matrix material. The material may be, for example, tobacco or other non-tobacco product, which may or may not contain nicotine. In one embodiment, said heating device is a tobacco heating device.

In another embodiment, the tobacco industry product is a mixing system for generating an aerosol by heating a combination of matrix materials without burning the combination of matrix materials. The matrix material may comprise, for example, a solid, liquid or gel which may or may not contain nicotine. In one embodiment, the hybrid system includes a liquid or gel matrix and a solid matrix. The solid substrate may be, for example, tobacco or other non-tobacco product, which may or may not contain nicotine. In one embodiment, the mixing system includes a liquid or gel base and tobacco.

Packs and bundles are described with reference to tobacco industry products such as cigarettes. However, it is to be understood that wrappers may alternatively be used to wrap bundles of non-tobacco industry related products or articles. For example, food products, electronics, or other consumer goods.

In order to solve various problems and advance the art, this disclosure throughout illustrates by way of illustration various embodiments in which the claimed invention may be practiced and provides superior packaging for a set of tobacco industry products. The advantages and features of the present disclosure are only representative examples of embodiments, and are not exhaustive and/or exclusive. The advantages and features of the present disclosure are presented only to aid understanding and to teach the claimed features. It is to be understood that the advantages, embodiments, examples, functions, features, structures and/or other aspects of the present disclosure should not be considered as limitations on the disclosure defined by the claims or limitations on the equivalents of the claims, and Other embodiments may be utilized and modifications may be made without departing from the scope and/or spirit of this disclosure. Various embodiments may comprise, consist of, or consist essentially of various combinations of the disclosed elements, components, features, sections, steps, means, etc., as appropriate. Additionally, this disclosure includes other inventions that are not presently claimed, but which may be claimed in the future.

Claims (21)

1. a kind of packaging material for one group of tobacco business product comprising:

Barrier material；

Cutting line in the barrier material, the cutting line are used to form tab, and the tab, which is arranged to, to be pulled, and make Mouth must be torn to propagate from the end of the cutting line to be formed in the barrier material and extract opening；

Wherein, the barrier material includes atenuator region, and the atenuator region has bigger than the width of the cutting line wide Degree, and the atenuator region extends across the end of the cutting line along a direction, to control from the cutting line The direction for tearing mouth that the end is propagated.

2. packaging material according to claim 1, wherein the atenuator region is configured to guide from described in the cutting line What end was propagated tears mouth.

3. packaging material according to claim 1 or 2, wherein the barrier material include main surface and by fold line with The separated end surfaces of the main surface, wherein the cutting line is formed in the main surface, so that when pulling the tab, It is described tear mouth in the main surface from the end of the cutting line towards the main surface and the end surfaces it Between the fold line propagate.

4. packaging material according to claim 3, wherein the atenuator region is crossed the fold line and extended from the main surface Into the end surfaces.

5. packaging material according to claim 3 or 4, wherein the atenuator region includes multiple in the barrier material Parallel weakened lines, the multiple parallel weakened lines prolong along the direction of the end towards the end surfaces far from the cutting line It stretches, the weakened line is parallel to and directly tears a mouthful propagation path, and mouthful propagation path of directly tearing is defined as cutting from described The end of secant extends to the shortest path of the end surfaces.

6. packaging material according to claim 5, wherein the cutting line extends between the weakened line.

7. packaging material according to claim 5, wherein the weakened line along the direction for directly tearing mouthful propagation path with The end of the cutting line is spaced apart.

8. the packaging material according to any one of claim 5 to 7, wherein one of described parallel weakened lines are along institute It states and directly tears a mouthful propagation path extension.

9. packaging material according to claim 3 or 4, wherein the atenuator region is configured to will be from the institute of the cutting line The mouth of tearing for stating end propagation is redirected to towards a mouthful propagation path is directly torn, and mouthful propagation path of directly tearing is limited It is set to from the end of the cutting line and extends to the fold line between the main surface and the end surfaces most Short path.

10. packaging material according to claim 9, wherein the atenuator region includes that the first convergence weakened line and second are assembled Weakened line, the first convergence weakened line and the second convergence weakened line intersect on mouthful propagation path in described directly tear.

11. packaging material according to claim 10, wherein assemble weakened line described first in the end of the cutting line And second convergence weakened line between extend.

12. packaging material described in 0 or 11 according to claim 1, wherein third weakened line is weakened from first weakened line and second The place of line intersection extends along mouthful propagation path of directly tearing.

13. according to any one of claim 5 to 8 or according to claim 1 packaging material described in 0 or 11, wherein described weak Changing line is the score line for extending partially through the thickness of the barrier material.

14. packaging material according to claim 13, wherein the weakened line is laser cutting score line.

15. packaging material according to any preceding claims, wherein the cutting line extends completely through the barrier material The thickness of material.

16. the packaging material according to any one of claim 3 to 15 comprising on the barrier material in the cutting The cover plate extended above line, the cover plate adheres to the barrier material, so that promoting the cover plate will pull the tab, with Propagate the mouth of tearing from the end of the cutting line.

17. packaging material according to claim 16, wherein at least peripheral region for extending beyond the cutting line of the cover plate Domain adheres to the barrier material by pressure-sensitive releasable adhesive.

18. packaging material according to claim 16 or 17, wherein the cover plate adheres to the outer surface of the barrier material, And the atenuator region is formed on the outer surface.

19. packaging material according to claim 16 or 17, wherein the cover plate adheres to the outer surface of the barrier material, And the atenuator region is formed on an internal surface.

20. a kind of bundle comprising packaging material according to any preceding claims, the packaging material are wrapped in one group of tobacco business Around product.

21. a kind of tobacco business product packaging comprising bundle according to claim 20 and container, the container have Pedestal and the lid for being hingedly attached to the pedestal, the bundle are contained in the pedestal.