Packaging and tobacco products

Abstract

Improvements are being made to sustainable packaging that maintains the quality of the contents and eliminates the need for an outer plastic wrapping film. One type of packaging includes a barrier paper for packaging a package containing tobacco products. Furthermore, the barrier paper is a heat-sealable paper material with barrier properties, and includes a tear-off device that guides the user in the direction to tear the barrier paper when it is opened.

Description

Technical Field

[0001] This disclosure relates to a package and a tobacco product. Background Technology

[0002] Conventionally, rigid and flexible packaging are known as packaging materials for tobacco products. These packages are wrapped in biaxially oriented polypropylene (OP) film to limit quality degradation.

[0003] In addition, the use of an outer wrapping material in the packaging of aerosol-generating articles has been proposed, which includes a first polymer layer and a second polymer layer, which may be heat-sealable layers, and a cellulose layer (e.g., PTL 1).

[0004] Citation List

[0005] Patent documents

[0006] PTL 1: WO 2023 / 006928 A1 Summary of the Invention

[0007] The problem to be solved by the present invention

[0008] The purpose of this disclosure is to improve sustainable packaging that can maintain the quality of the contents and eliminate the need for outer wrapping films made of plastic.

[0009] Solution to the problem

[0010] The packaging disclosed herein includes barrier paper used for packaging a package containing tobacco products. Furthermore, the barrier paper is a heat-sealable paper material with barrier properties. The barrier paper includes a tear strip to guide the user in the direction of tearing the barrier paper when it is opened, and the barrier paper, divided into multiple areas by the tear strip, includes an adhesive area that is heat-sealed to the package on the side opposite to the area removed during opening.

[0011] Furthermore, according to another aspect of this disclosure, the packaging includes barrier paper used for packaging a package for containing tobacco products. The barrier paper is a heat-sealable paper material with barrier properties, and at least a portion of the front surface of the barrier paper has a backing layer for increasing its opacity, and a printed layer with a predetermined design is provided on the backing layer.

[0012] Advantages of the present invention

[0013] It can improve sustainable packaging that maintains the quality of the contents and eliminates the need for an outer wrapping film made of plastic. Attached Figure Description

[0014] [Figure 1 ] Figure 1 It is a perspective view showing an example of a tobacco product, in which the tobacco product is packaged in a box.

[0015] [ Figure 2 ] Figure 2 This is an exploded perspective view showing an example of a tobacco product.

[0016] [ Figure 3 ] Figure 3 This is a diagram showing an example of a blank before the barrier paper is folded into a cuboid shape.

[0017] [ Figure 4 ] Figure 4 It is a diagram showing the folding of the bottom surface of the barrier paper.

[0018] [ Figure 5 ] Figure 5 It is a schematic cross-sectional view of the barrier paper.

[0019] [ Figure 6 ] Figure 6 It is a diagram showing the bonding area where a heat-sealing layer is set along the unpacking tape. Detailed Implementation

[0020] Embodiments of the packaging according to this disclosure will be described below with reference to the accompanying drawings.

[0021] <Example>

[0022] Figure 1 This is a perspective view showing an example of tobacco product 1, where the tobacco product is packaged in a package. Figure 2This is an exploded perspective view showing an example of tobacco product 1. Tobacco product 1 includes, for example: contents 2 constituting a tobacco article; an inner wrapping material 3 for packaging the contents 2; a wrapping material (wrapping paper) 4 for packaging the outer side of the inner wrapping material 3; sealing paper 5; and barrier paper 6. The inner wrapping material 3, the wrapping material 4, and the sealing paper 5 form a package 11 for packaging the contents 2. A package 11 having the same structure and materials as existing flexible packaging can be used. The barrier paper 6 is the outer wrapping material for packaging the package 11. The barrier paper 6 is a paper material in which a barrier coating with barrier properties is formed on at least one surface of a base material mainly comprising cellulose. It should be noted that the barrier properties include at least any water vapor barrier properties. Tobacco product 1 according to this embodiment has a cuboid shape. The barrier paper 6 is folded into a cuboid shape to package the package 11, thereby forming a front 61, a back 62, a left side 63, a right side 64, a top 65, and a bottom 66. Furthermore, the barrier paper 6 may include a tear strip 67 for guiding the tearing direction of the barrier paper 6 when the tobacco product 1 is opened. The material of the tear strip 67 may be film or paper. A tear pull tab 671 is provided at one end of the tear strip 67, located on the right side 64. The tear pull tab 671 is the part that is pinched to initiate the opening operation. In addition, a predetermined design 68 may be printed on at least a portion of the barrier paper 6.

[0023] It should be noted that in this embodiment, for practical purposes, the top / bottom / front / back / left / right directions are defined, such as... Figure 1 and Figure 2 As indicated by the arrows in the diagram. Specifically, the side of package 11 that is unpacked by the user will be referred to as the top surface (top direction), while the side with the main design among two large-area surfaces will be referred to as the front surface (front direction). [The text then abruptly shifts to a different topic:] ...can be... Figure 1 The front 61, right side 64, and top 65 of the barrier paper 6 are visible. Furthermore, a tear strip 67 is positioned near the top 65 around the sides of the barrier paper 6 (i.e., right side 64, front 61, left side 63, and back 62). When the barrier paper 6 is opened, the user tears the barrier paper 6 along the tear strip 67 and removes the portion above the tear strip 67. The user also breaks open the top of the package 4 to create an opening.

[0024] There are no particular restrictions on the contents 2 contained in the packaging 12, which includes the sealing pouch 11 and the barrier paper 6, and the contents 2 can be tobacco products, such as cigarettes (filtered cigarettes, unfiltered cigarettes), cigars, cigarettes, wet snuff, snuff, chewing tobacco, and e-cigarettes. For example, Figure 2 The contents shown in Figure 2 are multiple cigarettes.

[0025] For example, the inner packaging material 3 can be paper or aluminum laminated paper. The inner packaging material 3 contains the contents 2 through a so-called "caramel wrapping" (folded wrapping). For example, the wrapping material 4 is paper. The wrapping material 4 contains the contents 2 packaged in the inner packaging material 3 through a caramel wrapping with an open top. In addition, the sealing paper 5 is formed of a predetermined paper material and is bonded to the upper front, top, and upper back portions of the package 11. It should be noted that the package 11 may be without the wrapping material 4 and / or the sealing paper 5.

[0026] (Barrier paper)

[0027] The barrier paper 6 is a paper material on which a barrier coating is formed on at least one side of a base paper. In this embodiment, it is assumed that the barrier coating is formed on the entire back of the barrier paper 6. The barrier coating is formed by coating a material comprising a predetermined polymer (such as an olefin resin, acrylic resin, silicone resin, or fluoropolymer resin) and having predetermined barrier properties. It should be noted that there is a risk that the flavor of the tobacco product may be altered, depending on the amount of water vapor present. To avoid this, the water vapor transmission rate of the barrier paper 6 is preferably 20 g / m² per day. 2 Or less, more preferably 9 g / m² per day 2 Or less, or even more preferably 7 g / m² per day 2 Or even less. Furthermore, for example, the amount of coating material applied is 8 gsm (g / m³). 2 (11 gsm or more). Furthermore, for example, the amount of coating material applied is 11 gsm or less. Additionally, the barrier coating can have heat-sealing properties that allow it to be welded by heating.

[0028] It should be noted that the water vapor transmission rate is a value obtained by measuring the base material at the location where the coating material is applied, according to JIS Z0208 "Test method for moisture permeability of moisture-proof packaging materials (cup method)".

[0029] The substrate material on which the barrier coating is formed preferably has high smoothness. A uniform barrier coating can be formed by increasing smoothness, thereby reducing the amount of coating material required to achieve the desired barrier properties. A clay coating or anchoring varnish layer can be formed between the substrate material and the barrier coating to improve smoothness by sealing the substrate material. For example, a clay coating can be formed by coating the substrate material with a coating liquid obtained by dispersing clay and a water-suspendable polymer in a medium, followed by drying. An anchoring varnish layer can be formed using a typical anchoring varnish coating.

[0030] The design 68 of the packaging 12 can be printed on at least a portion of the front surface of the barrier paper 6. The design 68 may include health warnings. Furthermore, a heat-sealed layer coated with a heat-sealing agent can be formed on at least a portion of the front surface of the barrier paper 6. The heat-sealing agent can be, for example, polypropylene, polyethylene, polyurethane, polyolefin, rosin ester, resin hot-melt adhesive, polyamide, or polyester. The adhesion of the barrier paper 6 can be improved by the heat-sealing agent. The layer including the barrier coating can be formed on the substrate material using existing coating machines, or it can be formed on the substrate material using printing methods (such as photogravure printing, offset printing, or aniline printing).

[0031] Figure 3 This diagram shows an example of a blank before the barrier paper 6 is folded into a cuboid shape. It should be noted that, for convenience, references will be made to top / bottom / left / right, assuming the orientation of the area of ​​the blank B6 that forms the top surface 65 after folding is the top. Furthermore, the outer surface of the packaging will be referred to as the front of the blank, and the inner surface of the packaging will be referred to as the rear of the blank. Figure 3 In this context, blank B6 refers to the surface of barrier paper 6 stamped for a specific type of packaging. For example, blank B6 is stamped from base paper (which has each of the aforementioned layers pre-formed in a predetermined area) and then wound into a roll. The base paper is positioned and cut according to alignment marks (eye marks) such that printing and heat sealant are located in the desired positions on blank B6 for a specific type of packaging. That is, alignment marks constituting the cutting marks and predetermined patterns are applied to the base paper.

[0032] The blank B6 has a rectangular shape in its stamped state (in other words, its unfolded state before folding). Figure 3 The single-dotted line in the diagram represents the fold line when package 11 is packaged. Figure 3 The shaded areas can be coated with varnish to protect the printing on the barrier paper 6. Furthermore, a predetermined print can be formed between the varnish and the substrate material. Additionally, a heat-sealing layer can be formed on... Figure 3 The heat-sealing layer is preferably formed in the area where the front and back of the barrier paper 6 overlap during caramel wrapping (in other words, the area not exposed to the outside of the tobacco product 1), but it can also be formed in the area exposed to the outside of the tobacco product 1. For example, the double-dotted line in blank B6 indicates the position where the unsealing tape 67 is attached to the back of the barrier paper.

[0033] The blank B6 includes the following areas defined by fold lines indicated by single-dot dashed lines: a front area 610 that forms the front side when the package is formed; a back area 620 that forms the back side 62; a left side area 630 that forms the left side; right side areas 641 and 642 that form the right side; top areas 651 to 659 that form the top surface 65; and bottom areas 661 to 669 that form the bottom surface. Figure 3 As shown, right side region 642, back side region 620, left side region 630, front side region 610, and right side region 641 are connected from left to right in this order. Top regions 657 and 653 are trapezoidal regions connected to the top of front side region 610 and back side region 620, respectively. Top regions 651, 655, and 659 are rectangular regions connected to the top of right side region 642, left side region 630, and right side region 641, respectively. Furthermore, top regions 652, 654, 656, and 658, folded into triangular shapes, are connected between top regions 651, 653, 655, 657, and 659, respectively. Similarly, bottom regions 667 and 663 are trapezoidal regions connected to the bottom of front side region 610 and back side region 620, respectively. Bottom regions 661, 665, and 669 are rectangular regions that connect to the bottom of right side region 642, left side region 630, and right side region 641, respectively. Furthermore, bottom regions 662, 664, 666, and 668, folded into triangular shapes, connect between bottom regions 661, 663, 665, 667, and 669, respectively.

[0034] (Package)

[0035] Figure 4 It is a diagram showing the folding of the bottom surface of the barrier paper 6. Figure 4 The top diagram (A) shows the following state: after the front, left, right, and back sides of the packaging package 11 have been wrapped with the barrier paper 6, the bottom regions 661, 665, and 669 of the barrier paper 6 have been folded. At this point, for example, bottom regions 662 and 664 are folded onto bottom region 663, bottom regions 666 and 668 are folded onto bottom region 667, and the barrier material coated on the back of the barrier paper 6 is bonded in each folded region by heat sealing.

[0036] Figure 4 The second figure (B) shows the following state: the bottom area 667 of the barrier paper 6 has been further folded. Figure 4 (A) shows that bottom area 666 is laid on a portion of bottom area 665, bottom area 668 is laid on a portion of bottom area 669, and is bonded with heat sealant on its respective front surface.

[0037] Figure 4 The third figure (C) shows the following state: the bottom area 663 of the barrier paper 6 has been further folded. Figure 4 As shown in (B), bottom region 664 is laid on a portion of bottom regions 665 and 667, and bottom region 662 is laid on a portion of bottom regions 661, 667, and 669. It should be noted that the vertical lengths of the trapezoidal bottom regions 663 and 667 ( Figure 4 The length of the bottom surface (in the front-to-back direction) is greater than half the length of the short side of the bottom surface of the package, and bottom surface area 663 and bottom surface area 667 overlap near the center of the bottom surface. A heat sealant, or a combination of heat sealant and barrier material, is then bonded to the folded surface of the bottom surface area by heat sealing.

[0038] In this way, the barrier paper 6 can airtightly seal the package 11. Furthermore, the barrier paper 6 can be heat-sealed using a packaging machine so that it can be packaged with a conventional outer wrapping film. That is, the adhesive portion of the barrier paper 6 is the same as the adhesive portion of a conventional outer wrapping film, and the tobacco product 1 can be manufactured without any major modifications to conventional cigarette manufacturing machinery. It should be noted that heat sealing can also be performed using a coating material for forming the aforementioned barrier coating, and heat sealing can also be performed by providing a heat-sealing layer. The heat-sealing layer allows for improved adhesion of the barrier paper 6. Furthermore, when the base material of the barrier paper 6 is thinner, this allows for improved thermal conductivity and a shorter time required for heat sealing by the manufacturing machine; however, if the base material is too thin, problems arise during handling in existing packaging machines. The basis weight of the base material is preferably between 25 gsm and 60 gsm.

[0039] (Substrate used for printing)

[0040] The design on the packaging 11 can also be seen through the barrier paper 6, provided that the basis weight of the substrate material is as indicated above. For example, management information such as the manufacturing date can be noted on the packaging 11 and can be confirmed through the barrier paper 6. However, even if the barrier paper 6 is semi-transparent, the visibility and legibility of the design on the packaging 11 will be reduced because it is covered by the barrier paper 6. For this reason, as described above, a predetermined design can be provided on the front surface of the barrier paper 6. When the design is printed on the front surface of the barrier paper 6, a backing layer can be further formed to increase the opacity (opacity) of the barrier paper 6.

[0041] Figure 5 This is a schematic cross-sectional view of the barrier paper 6. The front surface of the barrier paper 6 is positioned on the outside of the tobacco product 1, while its rear surface contacts the packaging package 11. It should be noted that the barrier paper 6... Figure 1and Figure 2 The right side 64, top side 65, and bottom side 66 shown are partially folded. The barrier paper 6 includes: a base material 600, a barrier coating 601, heat-sealing layers 602 and 603, a printing layer 681, a backing layer 682, and a protective layer 683. It should be noted that the heat-sealing layer 602, the printing layer 681, the backing layer 682, and the protective layer 683 may be formed on a portion of the barrier paper 6 rather than its entire surface.

[0042] The substrate material 600 is a cellulose layer primarily comprising cellulose. Design 68 is disposed on the front surface side of the substrate material 600. Design 68 includes: a printed layer 681 on which text or graphics, etc., are printed using existing inks including pigments; a backing layer 682 formed beneath the printed layer 681 as an anchoring coating; and a protective layer 683 formed on the printed layer 681. For example, the backing layer 682 can be a colored ink, such as white ink, or a predetermined opacifier. The opacifier suppresses transparency and enhances opacity. By providing the backing layer 682, the visibility and legibility of the printed layer 681 can be improved even though the design is disposed on the front surface of the package 11. For example, the protective layer 683 is formed of a varnish such as an existing overprint (OP) varnish or a UV-curable UV varnish. The protective layer 683 suppresses color loss by protecting the printed layer 681. Furthermore, a barrier coating 601 with barrier properties is formed on the rear surface side of the substrate material 600.

[0043] (Heat seal)

[0044] like Figure 5 As shown, the heat-sealing layer 602 can be formed at a predetermined position on the outer side of the protective layer 683. Furthermore, the heat-sealing layer 602 can be formed on the base material 600, but design 68 is not formed in the area where the heat-sealing layer 602 is provided. As described above, the heat-sealing layer 602 has heat-sealing properties that allow for welding by heating. The adhesion of the folded portion of the barrier paper 6 is improved by providing the heat-sealing layer 602. Furthermore, as... Figure 3 and Figure 4 As shown, the packaging can be configured to ensure that a heat-sealing layer is not applied to the outer surface after caramelization. However, if a heat-sealing layer is not applied to the outer surface within the area facing the heater unit of the packaging machine (i.e., the area bonded by heat sealing) after caramelization, the accumulation of heat sealant on the heater unit of the packaging machine can at least be suppressed. Furthermore, when the barrier coating 601 has heat-sealing properties, the barrier coating 601 and the design 68 or the substrate material 600 can be bonded by heat sealing without the need for a heat-sealing layer 602.

[0045] Furthermore, a heat-sealing layer 603 can be formed at a predetermined location on the inner side of the barrier coating 601. Additionally, in Figure 1 and Figure 2 In this packaging, a heat-sealing layer 603 is disposed on at least a portion of the bottom side of the unpacking tape 67 (in other words, the side of the barrier paper 6 opposite to the area removed during unpacking). By providing the heat-sealing layer 603, the barrier paper 6 and the packaging package 11 are bonded together, and separation of the barrier paper 6 can be suppressed. Furthermore, for example, by providing the heat-sealing layer 603 on the right side 64 or the bottom side 66, the heat-sealing layer 603 can be manufactured without modifying existing packaging machines that heat-seal caramel-type packages. Simultaneously, for example, by providing the heat-sealing layer 603 on non-overlapping portions of the barrier paper 6 (such as the front side 61, back side 62, and left side 63), adhesion to the heat-sealing layer 603 can be promoted.

[0046] In addition, the heat-sealing layer 603 can be disposed near the bottom side of the opening strip 67 along the opening strip 67. Figure 6 This diagram shows an adhesive region 69 in which a heat-sealing layer 603 is provided along the unpacking tape 67. For example, the adhesive region 69 includes at least... Figure 6 The shaded area between the dotted lines. Figure 6 In the example, the bonding area 69 is positioned below the opening tape 67, surrounding the sides of the barrier paper 6 (i.e., right side 64, front side 61, left side 63, and back side 62). When the paper base material 600 is torn through the opening tape 67, tears may occur in unexpected directions, depending on the fiber orientation of the paper. The barrier paper 6 and the package 11 are bonded along the opening tape 67 and near the bottom side of the opening tape 67 by a heat-sealing layer 603, thereby guiding the tearing direction of the barrier paper 6 when the tobacco product 1 is opened. That is, tearing of the opening tape 67 from the bonding portion toward the bottom side of the barrier paper 6 can be suppressed. If the bonding area 69 is positioned around all sides, the tearing direction can be reliably guided, the barrier paper 6 and the package 11 can be firmly bonded after opening, and separation of the barrier paper 6 can be suppressed.

[0047] It should be noted that the bonding area 69 does not need to be bonded around all sides of the barrier paper 6. For example, the bonding area 69 can be provided at least on the side where the opening pull tab 671 is located (right side 64). Specifically, the area 691 near the opening pull tab 671 can be bonded. The area 691 is located near the bottom side of the opening strip 67, within a predetermined range on the right side 64 extending from the opening pull tab 671 in the tear direction. The tear direction is guided near the starting point of the opening operation, thereby allowing the entire operation to be properly oriented. Furthermore, the location of the right side 64 where the opening pull tab 671 is located can also be bonded for heat sealing in existing manufacturing machines, so no major modifications to the manufacturing machine are required. In addition, during manufacturing, the bonding of the barrier paper 6 and the formation of the bonding area 69 can be performed by a single heat treatment, which is highly efficient. Furthermore, the bonding area 69 can be further provided on at least a portion of the front side 61, the left side 63, and the back side 62, and the bonding area 69 can be intermittently provided in the form of dashed lines in at least some portions.

[0048] Furthermore, the heat-sealing layer 603 can be provided and heat-sealed on the side of the barrier paper 6, or on the side of the package 4. In addition, instead of bonding by heat sealing or the like, or in other ways, the tear direction of the barrier paper 6 can be guided by a weakening line (e.g., a half-cut). By forming a weakening line as a half-cut on the base material 600 or the like so as not to cut the barrier coating 601, the water vapor barrier properties of the barrier paper 6 can be ensured. Furthermore, the packaging can be opened via a zipper portion having a boundary defined by two weakening lines, without providing an opening strap 67.

[0049] <Beneficial Effects>

[0050] Furthermore, when the packaging 11 is airtightly sealed using barrier paper 6, the volatile components contained in the contents 2 can be prevented from leaking out of the packaging. For example, this means that an outer wrapping film made of plastic is no longer needed. In typical tobacco packaging, quality degradation is suppressed by the barrier properties of the outer wrapping film, but this embodiment enables a sustainable form of packaging that eliminates the need for an outer wrapping film.

[0051] <Variant Example>

[0052] Unless otherwise expressly stated, the dimensions, materials, shapes, and relative arrangements of the components disclosed in the embodiments are not intended to limit the scope of this disclosure to those mentioned. Furthermore, the configurations given in the embodiments can be combined or modified in various ways without departing from the essence of this disclosure.

[0053] The packaging package 11 can be a so-called rigid package rather than a flexible package.

[0054] Furthermore, in the embodiments, the position where the front and rear surfaces of the barrier paper 6 overlap and are bonded by heat sealing can also be a "butt joint". That is, the front and rear surfaces of the barrier paper 6 can overlap, and the barrier coating 601 or heat sealing layer 603 formed on each of the front and rear surfaces can be bonded by heat sealing.

[0055] Figure 5 The protective layer 683 shown can have heat-sealing properties, allowing it to be welded by heating. In other words, the protective layer 683 can be formed by a heat sealant. In this case, the heat sealant is preferably a polymer that has heat-sealing properties as well as relatively high transparency and the ability to protect the printed varnish. In this case, the heat sealant is applied to the front side of the printed layer 681 and between the barrier papers 6 overlapped during caramel wrapping (front surface side). The printed layer 681 can also be protected by the protective layer 683 formed by the heat sealant. Furthermore, it is not necessary to further provide a heat-sealing layer 602 on the protective layer 683, thereby reducing the number of manufacturing steps.

[0056] Figure 5 The heat-sealing layer 603 shown can be an adhesive layer used to bond the barrier paper 6 and the packaging package 11 with an adhesive other than heat sealing (such as glue, tape, or cold sealant). When using an adhesive other than heat sealing, the direction in which the barrier paper 6 is torn by the opening tape 67 can also be guided by forming an adhesive area near and along the opening tape 67.

[0057] The management information mentioned above can also be noted on the non-overlapping portions of the barrier paper 6 (e.g., the front, back, and left sides). Conventionally, management information is usually noted on the bottom surface of the package 11, but in this embodiment, visibility is reduced on the overlapping portions of the barrier paper 6 of the tobacco product 1. Accordingly, when management information such as the manufacturing date is noted on the package 11 and can be confirmed through the barrier paper 6, it is preferable to note this management information on the non-overlapping portions of the barrier paper 6.

[0058] There are no particular limitations on the masking agent, and well-known masking agents can preferably be used, examples of which include: white pigments such as titanium dioxide, zinc sulfide, zinc oxide, barium sulfide, calcium carbonate, talc, or mica; and black pigments such as carbon black or composite oxide pigments. Methods of using such masking agents include: coating a masking agent in a molten state and then curing it; coating a solution obtained by dissolving or dispersing the masking agent in a solvent, then removing the solvent and curing the material; printing the masking agent by various printing means (such as aniline printing); and forming an extruded resin into a film. There are no particular limitations on the solvent, as long as it can dissolve or disperse the masking agent.

[0059] Furthermore, the aforementioned opacifying agents can be used alone, or two or more opacifying agents can be mixed in any ratio and any combination. For example, the liner 682 can be formed of multiple layers, and a layer including black pigment can be disposed on the inside of the packaging, while a layer including white pigment can be disposed on the outside of the packaging. In this way, compared to the case where only a layer including white pigment is disposed as an opacifying layer, even better opacity of the barrier paper 6 can be achieved and the barrier paper 6 can be endowed with light-blocking properties.

[0060] There are no particular limitations on the volume-average particle size of the masking agent used in the masking layer material, but it is typically 0.01 µm or larger, preferably 0.1 µm or larger, more preferably 0.5 µm or larger, and also typically 50 µm or smaller, preferably 10 µm or smaller, and even more preferably 2 µm or smaller. The volume-average particle size of the masking agent used in the masking layer material is obtained by measuring the masking agent in the starting material using well-known methods.

[0061] There are no particular restrictions on the resins used in the masking agent, and well-known resins can be used appropriately, such as natural resins (e.g., rosin-based resins) or synthetic resins (e.g., acrylic resins), etc.

[0062] There are no particular restrictions on the materials of the ink used in the covering layer, and the ink should be able to dissolve or disperse the above-mentioned covering agents. In addition to the above-mentioned covering agents, solvents, dispersants, viscosity modifiers, and defoamers can also be used as examples of ink materials, but the materials of the ink are not limited to those described above.

[0063] There are no particular limitations on the coating thickness of the masking agent, but it is typically 0.1 gsm or greater, preferably 1 gsm or greater, more preferably 2 gsm or greater, and also typically 15 gsm or less, preferably 10 gsm or less, more preferably 5 gsm or less. When the liner 682 is formed of multiple masking agent layers, the thickness given above may be related to the total thickness or the thickness of each layer.

[0064] The following supplements are provided regarding the above embodiments.

[0065] (Supplement 1)

[0066] A type of packaging includes barrier paper for packaging a package for containing tobacco products, wherein...

[0067] The barrier paper is a heat-sealable paper material with barrier properties, and

[0068] The barrier paper includes a tear strip that guides the user in the direction to tear the barrier paper when opening it.

[0069] (Supplement 2)

[0070] The packaging as described in Supplement 1, wherein a heat-sealable barrier coating with barrier properties is formed on at least one of the front and rear portions of the paper base material of the barrier paper.

[0071] (Supplement 3)

[0072] As described in Supplement 2, in the state where the barrier paper is packaging the package, the barrier coating is bonded to the overlapping portion of the barrier paper by heat sealing, and the barrier paper airtightly seals the package.

[0073] (Supplement 4)

[0074] As described in Supplement 2 or 3, the packaging wherein the water vapor permeability of the barrier coating is 7 g / m³ / h. 2 Or smaller.

[0075] (Supplement 5)

[0076] As in any one of Supplements 2 to 4, wherein the basis weight of the base material is 25 gsm to 60 gsm.

[0077] (Supplement 6)

[0078] The packaging as claimed in any one of claims 1 to 5, wherein the barrier paper, which is divided into multiple regions by the unpacking device, includes an adhesive region that is adhered to the package on the side opposite to the region removed during unpacking.

[0079] (Supplement 7)

[0080] As described in Supplement 6, the adhesive area is formed near and along the unpacking device.

[0081] (Supplement 8)

[0082] The packaging as described in any one of Supplements 1 to 7, wherein at least a portion of the front surface side of the barrier paper is provided with a backing layer for increasing the opacity of the barrier paper, and a printed layer having a predetermined design is provided on the backing layer.

[0083] (Supplement 9)

[0084] A tobacco product comprising: packaging as described in any one of Supplements 1 to 8; and

[0085] Packaging package used to contain the tobacco product.

[0086] List of reference numerals

[0087] 1: Tobacco products

[0088] 11 (2, 3, 4, 5): Packet

[0089] 12 (2, 3, 4, 5, 6): Packaging

[0090] 2: Contents

[0091] 3: Inner wrapping material

[0092] 4: Packages

[0093] 5: Sealing paper

[0094] 6: Barrier paper

[0095] 67: Unpacking tape

[0096] 600: Substrate material

[0097] 601: Barrier Coating

[0098] 602, 603: Heat sealing layer

[0099] 603: Heat sealing layer

[0100] 68: Design

[0101] 681: Printed layer

[0102] 682: Lining

[0103] 683: Protective layer.

Claims

1. A package comprising barrier paper for packaging a package for containing tobacco products, wherein, The barrier paper is a heat-sealable paper material with barrier properties, and The barrier paper includes a tear-off device that guides the user in the direction to tear the barrier paper when it is unpacked.

2. The packaging as described in claim 1, wherein, A heat-sealable barrier coating with barrier properties is formed on at least one of the front and rear portions of the paper base material of the barrier paper.

3. The packaging as described in claim 2, wherein, While the barrier paper is packaging the package, the barrier coating adheres to the overlapping portions of the barrier paper via heat sealing, and the barrier paper airtightly seals the package.

4. The packaging as described in claim 2 or 3, wherein, The water vapor permeability of the barrier coating is 7 g / m³ / h. 2 Or smaller.

5. The packaging as described in any one of claims 2 to 4, wherein, The basis weight of the substrate material is 25 gsm to 60 gsm.

6. The packaging as described in any one of claims 1 to 5, wherein, The barrier paper, which is divided into multiple areas by the unpacking device, includes an adhesive area that is bonded to the package on the side opposite to the area removed during unpacking.

7. The packaging as described in claim 6, wherein, The adhesive area is formed near and along the unpacking device.

8. The packaging as described in any one of claims 1 to 7, wherein, At least a portion of the front surface of the barrier paper is provided with a backing layer for increasing the opacity of the barrier paper, and a printed layer with a predetermined design is provided on the backing layer.

9. A tobacco product comprising: Packaging as described in any one of claims 1 to 8; as well as Packaging package used to contain the tobacco product.

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